- Table of Contents
- Intro
- Design
- Picture Quality
- Motion
- Inputs
- Sound Quality
- Smart Features
- Sizes and Variants
- Compared
- Conclusion
- Discussions
Reviewed on Oct 09, 2018
By Adam Babcock
, Eric Bousquet, Yannick Khong
LG UK6570
TV REVIEW
Sub-Type
:
IPS (except 70")
What it is:
Type of display technology used by the TV.
When it matters:
Different technologies have different performance and are suited to different uses
Good value:
IPS maintains good color accuracy at an angle, but has a poor contrast ratio from in front. VA has great picture quality in front, but loses saturation at an angle. OLED maintains good color accuracy at an angle without any of the other issues seen with IPS and VA, as they keep good brightness and contrast at an angle.
The LG UK6570PUB is a good 4k IPS TV with wide viewing angles and outstanding low input lag, the best we've tested so far on a TV. It has excellent gradient handling and a fast response time. It has excellent reflection handling and good SDR brightness, good for daytime viewing. Unfortunately, it doesn't perform well in a dark room, since it can't produce deep blacks and has poor black uniformity. It also isn't great for HDR, as it isn't very bright in HDR and lacks a wide color gamut.
Test Results
| Design | 8.0 |
| Picture Quality | 7.3 |
| Motion | 7.3 |
| Inputs | 9.6 |
| Sound Quality | 6.5 |
| Smart Features | 7.8 |
- Image remains accurate when viewed at an angle
- Excellent low input lag
- Disappointing dark room performance
- HDR performance is lacking
Update 2/28/2019:
Converted to Test Bench 1.3. Learn more about our versioned test bench system here.
Check Price
Design
Score components:
Subjectively assigned
Score distribution:
The LG UK6570PUB has a great design. The stand holds the TV well, but it does wobble a bit if nudged and the stand is nearly the full width of the TV, so you'll need a big desk if you aren't planning on VESA mounting it. The back of the TV is one large metal panel, and while it isn't loose, it doesn't seem very solid and may dent easily. The overall build quality is good, and there shouldn't be any issues with it.
The back of the LG 75UK6570PUB is very plain. There is a single, large metal panel covering the entire back of the TV. No thought was given to cable management, there is only a single plastic cable tie included in the box.
The borders are thicker than some similar models, including the UK7700. There is a small gap between the outer panel and the display, but this isn't really noticeable under normal viewing conditions.
Temperature
What it is:
It is the average and maximum operating temperatures we measured on the TV. If there is an external device, like a One Connect box in some Samsungs, we measure the temperature of that as well.
When it matters:
If the temperature of your TV is much higher, check that nothing is blocking the vents.
Maximum Temperature
:
95 °F (35 °C)
What it is:
The peak temperature found on the TV.
When it matters:
If the TV is placed in an enclosed space.
Good value:
<35°C
Noticeable difference:
5°C
Average Temperature
:
90 °F (32 °C)
What it is:
The average temperature measured on the TV.
When it matters:
If the TV is placed in an enclosed space.
Good value:
<35°C
Noticeable difference:
5°C
There are warm bands throughout the TV, likely caused by the backlight zones. They aren't much warmer than the rest of the screen, and there shouldn't be any issues with overheating.
7.5
Build Quality
What it is:
It represents our perception of the quality of the construction of the TV, of the materials used, and how they all blend.
When it matters:
Poor build quality might lessen the expected lifetime of the TV, or make it more prone to faults due to mishandling.
Score components:
Subjectively assigned
Score distribution:
The LG UK6570PUB has good build quality. There are no issues with most of the TV, but the back panel is a single sheet of thin metal that may dent easily. Overall, it is very similar to the UK7700.
Picture Quality
Score components:
- 11% Contrast
- 6% Local Dimming
- 6% SDR Peak Brightness
- 6% HDR Peak Brightness
- 6% Gray Uniformity
- 7% Viewing Angle
- 4% Black Uniformity
- 6% Reflections
- 4% Pre Calibration
- 1% Post Calibration
- 6% 480p Input
- 9% 720p Input
- 11% 1080p Input
- 5% 4k Input
- 4% Color Gamut
- 4% Color Volume
- 2% Gradient
- 1% Temporary Image Retention
- 1% Permanent Burn-In Risk
Score distribution:
The LG UK6570PUB has decent picture quality. Unfortunately, dark room performance isn't great, as it has only decent contrast, mediocre black uniformity, and lacks a local dimming feature to improve black levels. HDR doesn't look as good as it should, due to sub-par HDR brightness and a lack of a wide color gamut. The image remains accurate when viewed at an angle. Most people will be very satisfied with the color accuracy and white balance out of the box, and there isn't much benefit to having it professionally calibrated. Gradients are displayed with great accuracy, and there is very little banding.
6.5
Contrast
What it is:
Brightness difference between white and black. This is the main component of picture quality.
When it matters:
Always, but especially when watching dark scenes.
Score components:
Score distribution:
Native Contrast
:
1313 : 1
What it is:
Ratio of the white brightness divided by the blacks measured on our checkerboard test pattern with a white target of 100 cd/m².
When it matters:
Dark scenes in a dark room.
Good value:
> 3,000
Noticeable difference:
500
Score distribution:
Contrast with local dimming
:
N/A
What it is:
Ratio of the white brightness divided by the blacks measured on our checkerboard test pattern with local dimming turned on (maximum) with a white target of 100 cd/m².
When it matters:
Dark scenes in a dark room.
Good value:
> 3,000
Noticeable difference:
500
Score distribution:
The TV has a decent contrast ratio, worse than most VA panels but above average for an IPS. Unfortunately, there is no local dimming feature to improve the contrast ratio.
Note: the 70" model has a VA panel, and will likely have a better contrast ratio.
0
Local Dimming
What it is:
The lights behind the LCD layer adapt to the picture displayed, improving the contrast ratio.
When it matters:
Dark scenes viewed in a dark room.
Score components:
Subjectively assigned
Score distribution:
Local Dimming
:
No
What it is:
Whether it has a feature that controls the LEDs behind the LCD layer, to match the picture and darkens the dark portion of it.
When it matters:
On LED TVs only. Dark scenes viewed in a dark room.
Backlight
:
Direct
What it is:
Configuration of the lights of the backlight.
When it matters:
Effectiveness of the local dimming.
Good value:
Full-array/direct lighting is better for local dimming. As for the uniformity of the screen, it depends on the implementation. Some edge-lit TVs have more uniform blacks than some full-array TVs.
The TV does not have a local dimming feature. The above video is provided for reference only.
7.2
SDR Peak Brightness
What it is:
How bright the screen can get. Measured with local dimming and with SDR content.
When it matters:
Bright living rooms; bright objects; SDR content.
Score components:
- 64% SDR Real Scene Peak Brightness
- 5% SDR Peak 2% Window
- 5% SDR Peak 10% Window
- 5% SDR Peak 25% Window
- 5% SDR Peak 50% Window
- 5% SDR Peak 100% Window
- 2% SDR Sustained 2% Window
- 2% SDR Sustained 10% Window
- 2% SDR Sustained 25% Window
- 2% SDR Sustained 50% Window
- 2% SDR Sustained 100% Window
- 1% SDR ABL
Score distribution:
SDR Real Scene Peak Brightness
:
266 cd/m²
What it is:
The maximum luminosity the TV can obtain while playing a movie or while watching a TV show. Our Real Scene was selected to represent a more regular movie condition. All measurements are made with the TV set to be as bright as possible, but with a 6500k white. Measured with local dimming on, max backlight and with an SDR signal. Scene: here.
When it matters:
When watching movies and TV shows in SDR.
Good value:
> 300 cd/m²
Noticeable difference:
30 cd/m²
Score distribution:
SDR Peak 2% Window
:
278 cd/m²
What it is:
The maximum luminosity, even if only maintained for a short time, of a white square covering 2% of the screen, with the TV set to be as bright as possible. Measured with local dimming and over SDR signal.
When it matters:
Bright highlights, present on screen for a short time
Good value:
> 300 cd/m²
Noticeable difference:
30 cd/m²
Score distribution:
SDR Peak 10% Window
:
278 cd/m²
What it is:
The maximum luminosity, even if only maintained for a short time, of a white square covering 10% of the screen, with the TV set to be as bright as possible. Measured with local dimming and over SDR signal.
When it matters:
Bright objects, present on screen for a short time
Good value:
> 300 cd/m²
Noticeable difference:
30 cd/m²
Score distribution:
SDR Peak 25% Window
:
277 cd/m²
What it is:
The maximum luminosity, even if only maintained for a short time, of a white square covering 25% of the screen, with the TV set to be as bright as possible. Measured with local dimming and over SDR signal.
When it matters:
When watching in a bright room.
Good value:
> 300 cd/m²
Noticeable difference:
30 cd/m²
Score distribution:
SDR Peak 50% Window
:
277 cd/m²
What it is:
The maximum luminosity, even if only maintained for a short time, of a white square covering 50% of the screen, with the TV set to be as bright as possible. Measured with local dimming and over SDR signal.
When it matters:
When watching in a bright room.
Good value:
> 300 cd/m²
Noticeable difference:
30 cd/m²
Score distribution:
SDR Peak 100% Window
:
277 cd/m²
What it is:
The maximum luminosity, even if only maintained for a short time, of a white square covering 100% of the screen, with the TV set to be as bright as possible. Measured with local dimming and over SDR signal.
When it matters:
When watching in a bright room.
Good value:
> 300 cd/m²
Noticeable difference:
30 cd/m²
Score distribution:
SDR Sustained 2% Window
:
278 cd/m²
What it is:
The lowest maximum luminosity (usually after it has stabilized) of a white square covering 2% of the screen, with the TV set to be as bright as possible. Measured with local dimming and over SDR signal.
When it matters:
Bright highlights, persistent during a scene.
Good value:
> 300 cd/m²
Noticeable difference:
30 cd/m²
Score distribution:
SDR Sustained 10% Window
:
277 cd/m²
What it is:
The lowest maximum luminosity (usually after it has stabilized) of a white square covering 10% of the screen, with the TV set to be as bright as possible. Measured with local dimming and over SDR signal.
When it matters:
Bright objects, persistent during a scene.
Good value:
> 300 cd/m²
Noticeable difference:
30 cd/m²
Score distribution:
SDR Sustained 25% Window
:
277 cd/m²
What it is:
The lowest maximum luminosity (usually after it has stabilized) of a white square covering 25% of the screen, with the TV set to be as bright as possible. Measured with local dimming and over SDR signal.
When it matters:
When watching in a bright room.
Good value:
> 300 cd/m²
Noticeable difference:
30 cd/m²
Score distribution:
SDR Sustained 50% Window
:
277 cd/m²
What it is:
The lowest maximum luminosity (usually after it has stabilized) of a white square covering 50% of the screen, with the TV set to be as bright as possible. Measured with local dimming and over SDR signal.
When it matters:
When watching in a bright room.
Good value:
> 300 cd/m²
Noticeable difference:
30 cd/m²
Score distribution:
SDR Sustained 100% Window
:
277 cd/m²
What it is:
The lowest maximum luminosity (usually after it has stabilized) of a white square covering 100% of the screen, with the TV set to be as bright as possible. Measured with local dimming and over SDR signal.
When it matters:
When watching in a bright room.
Good value:
> 300 cd/m²
Noticeable difference:
30 cd/m²
Score distribution:
SDR ABL
:
0.000
What it is:
The coefficient of variation of the SDR sustained brightness, after linearizing for noticeable differences in luminosity
When it matters:
Content with large bright areas, such as for PC or video game use, and sports such as hockey
Good value:
<0.07
Noticeable difference:
0.01
Score distribution:
The LG UK6570 has good peak brightness in SDR. The brightness hardly changes at all with different content, which is great. The real scene brightness is a bit dimmer due to the TV's uniformity.
6.1
HDR Peak Brightness
What it is:
How bright the screen can get. Measured with local dimming and over HDR signal (if supported).
When it matters:
Bright living rooms; bright objects; HDR content.
Score components:
- 63% HDR Real Scene Peak Brightness
- 5% HDR Peak 2% Window
- 5% HDR Peak 10% Window
- 5% HDR Peak 25% Window
- 5% HDR Peak 50% Window
- 5% HDR Peak 100% Window
- 2% HDR Sustained 2% Window
- 2% HDR Sustained 10% Window
- 2% HDR Sustained 25% Window
- 2% HDR Sustained 50% Window
- 2% HDR Sustained 100% Window
- 2% HDR ABL
Score distribution:
HDR Real Scene Peak Brightness
:
299 cd/m²
What it is:
The maximum luminosity the TV can obtain while playing a movie or while watching a TV show. This scene was selected to represent a more realistic movie condition. All measurement are made with the TV set to be as bright as possible, but with a 6500k white. Measured with local dimming, max backlight and over HDR signal. Scene: here.
When it matters:
When watching movies or watching TV show in HDR.
Good value:
> 550 cd/m²
Noticeable difference:
80 cd/m²
Score distribution:
HDR Peak 2% Window
:
237 cd/m²
What it is:
The maximum luminosity, even if only maintained for a short time, of a white square covering 2% of the screen, with the TV set to be as bright as possible. Measured with local dimming and over HDR signal (if supported).
When it matters:
Bright highlights, present on screen for a short time; especially for HDR content.
Good value:
> 550 cd/m²
Noticeable difference:
80 cd/m²
Score distribution:
HDR Peak 10% Window
:
330 cd/m²
What it is:
The maximum luminosity, even if only maintained for a short time, of a white square covering 10% of the screen, with the TV set to be as bright as possible. Measured with local dimming and over HDR signal (if supported).
When it matters:
Bright objects, present on screen for a short time; especially for HDR content.
Good value:
> 550 cd/m²
Noticeable difference:
80 cd/m²
Score distribution:
HDR Peak 25% Window
:
327 cd/m²
What it is:
The maximum luminosity, even if only maintained for a short time, of a white square covering 25% of the screen, with the TV set to be as bright as possible. Measured with local dimming and over HDR signal (if supported).
When it matters:
Bright rooms; bright objects in HDR video.
Good value:
> 550 cd/m²
Noticeable difference:
80 cd/m²
Score distribution:
HDR Peak 50% Window
:
326 cd/m²
What it is:
The maximum luminosity, even if only maintained for a short time, of a white square covering 50% of the screen, with the TV set to be as bright as possible. Measured with local dimming and over HDR signal (if supported).
When it matters:
Bright rooms.
Good value:
> 550 cd/m²
Noticeable difference:
80 cd/m²
Score distribution:
HDR Peak 100% Window
:
325 cd/m²
What it is:
The maximum luminosity, even if only maintained for a short time, of a white square covering 100% of the screen, with the TV set to be as bright as possible. Measured with local dimming and over HDR signal (if supported).
When it matters:
Bright rooms.
Good value:
> 550 cd/m²
Noticeable difference:
80 cd/m²
Score distribution:
HDR Sustained 2% Window
:
236 cd/m²
What it is:
The lowest maximum luminosity (usually after it has stabilized) of a white square covering 2% of the screen, with the TV set to be as bright as possible. Measured with local dimming and over HDR signal (if supported).
When it matters:
Bright highlights, persistent throughout a scene; especially for HDR content.
Good value:
> 550 cd/m²
Noticeable difference:
80 cd/m²
Score distribution:
HDR Sustained 10% Window
:
226 cd/m²
What it is:
The lowest maximum luminosity (usually after it has stabilized) of a white square covering 10% of the screen, with the TV set to be as bright as possible. Measured with local dimming and over HDR signal (if supported).
When it matters:
Bright objects, persistent throughout a scene; especially for HDR content.
Good value:
> 550 cd/m²
Noticeable difference:
80 cd/m²
Score distribution:
HDR Sustained 25% Window
:
325 cd/m²
What it is:
The lowest maximum luminosity (usually after it has stabilized) of a white square covering 25% of the screen, with the TV set to be as bright as possible. Measured with local dimming and over HDR signal (if supported).
When it matters:
Bright rooms; bright objects in HDR video.
Good value:
> 550 cd/m²
Noticeable difference:
80 cd/m²
Score distribution:
HDR Sustained 50% Window
:
324 cd/m²
What it is:
The lowest maximum luminosity (usually after it has stabilized) of a white square covering 50% of the screen, with the TV set to be as bright as possible. Measured with local dimming and over HDR signal (if supported).
When it matters:
Bright rooms.
Good value:
> 550 cd/m²
Noticeable difference:
80 cd/m²
Score distribution:
HDR Sustained 100% Window
:
324 cd/m²
What it is:
The lowest maximum luminosity (usually after it has stabilized) of a white square covering 100% of the screen, with the TV set to be as bright as possible. Measured with local dimming and over HDR signal (if supported).
When it matters:
Bright rooms.
Good value:
> 550 cd/m²
Noticeable difference:
80 cd/m²
Score distribution:
HDR ABL
:
0.029
What it is:
The coefficient of variation of the HDR sustained brightness, after linearizing for noticeable differences in luminosity
When it matters:
HDR content with large bright areas, such as HDR gaming
Good value:
<0.07
Noticeable difference:
0.01
Score distribution:
Mediocre HDR brightness. Small highlights in some scenes aren't very bright, but large bright scenes are displayed at the TV's maximum brightness. There is some variation in brightness depending on content, which can be distracting.
If you find HDR content too dim, take a look at our recommended HDR settings.
6.4
Gray Uniformity
What it is:
Evenness of colors onscreen (not just gray).
When it matters:
Solid colors. Sports, panning shots.
Score components:
- 40% 50% Std. Dev.
- 40% 50% DSE
- 10% 5% Std. Dev.
- 10% 5% DSE
Score distribution:
50% Std. Dev.
:
6.343 %
What it is:
Average squared difference of pixels when displaying a mid 50% gray.
When it matters:
Solid colors. Sports, panning shots.
Good value:
< 2.5%
Noticeable difference:
1%
Score distribution:
50% DSE
:
0.219 %
What it is:
Dirty Screen Effect. High-frequency variance of uniformity. Dark spots on the screen.
When it matters:
Solid colors. Sports, panning shots.
Good value:
< 0.165%
Noticeable difference:
0.025%
Score distribution:
5% Std. Dev.
:
0.833 %
What it is:
Average squared difference of pixels when displaying a mid 5% gray.
When it matters:
Dark scenes.
Good value:
< 1.15%
Noticeable difference:
1%
Score distribution:
5% DSE
:
0.091 %
What it is:
Dirty Screen Effect. High-frequency variance of uniformity. Dark spots on the screen.
When it matters:
Dark scenes.
Good value:
< 0.116%
Score distribution:
Mediocre gray uniformity. There are bands visible throughout the screen, and noticeable dirty screen effect that is likely to bother sports fans. In near-black scenes, it is less noticeable.
7.1
Viewing Angle
What it is:
Color accuracy when viewed from the side.
When it matters:
Large living rooms with multiple viewing positions.
Score components:
- 20% Color Washout
- 16% Color Shift
- 24% Brightness Loss
- 16% Black Level Raise
- 24% Gamma Shift
Score distribution:
Color Washout
:
29 °
What it is:
The angle at which some colors drop to 80% of their original chroma.
When it matters:
When viewing colorful content from the side.
Good value:
> 45°
Noticeable difference:
10°
Score distribution:
Color Shift
:
51 °
What it is:
The angle at which some colors hue shift by 3° (meaning they change color, such as becoming more blue-ish).
When it matters:
When viewing colorful content from the side.
Good value:
> 45°
Noticeable difference:
10°
Score distribution:
Brightness Loss
:
33 °
What it is:
The angle at which the TV's lightness drops to 75% of its original lightness.
When it matters:
When viewing any content from the side.
Good value:
> 45°
Noticeable difference:
10°
Score distribution:
Black Level Raise
:
70 °
What it is:
The angle at which the black level doubles its lightness, leading to dark shades looking washed out.
When it matters:
When viewing dark content from the side.
Good value:
> 45°
Noticeable difference:
10°
Score distribution:
Gamma Shift
:
32 °
What it is:
The angle at which some grayscale shades shift by 3% of their relative position between the black and white levels.
When it matters:
When watching any content at an angle.
Good value:
> 45°
Noticeable difference:
10°
Score distribution:
The LG 75UK6570PUB has mediocre viewing angles, similar to the UK6300. The contrast stays relatively flat regardless of viewing angle, which is typical for IPS panels. Colors lose accuracy and the brightness drops at a small angle.
Note: the 70" model has a VA panel and is expected to have worse viewing angles.
5.9
Black Uniformity
What it is:
Evenness of blacks.
When it matters:
Dark scenes viewed in a dark room.
Score components:
- 75% Native Std. Dev.
- 25% Std. Dev. w/ L.D.
Score distribution:
Native Std. Dev.
:
2.058 %
What it is:
Average of the squared difference of the blacks.
When it matters:
Dark scenes viewed in a dark room.
Good value:
< 1%
Noticeable difference:
1%, but keep in mind that it varies a lot by unit, even of the same model; yours likely will not end up exactly like ours.
Score distribution:
Std. Dev. w/ L.D.
:
N/A
What it is:
Average of the squared difference of the blacks with Local Dimming enabled
When it matters:
Dark scenes viewed in a dark room.
Good value:
< 1%
Noticeable difference:
1%, but keep in mind that it varies a lot by unit, even of the same model; yours likely will not end up exactly like ours.
Score distribution:
The LG UK6570PUB has disappointing black uniformity. There is noticeable clouding throughout the screen, but there is no flashlighting as the TV is direct-lit.
8.8
Reflections
What it is:
How much light is reflected by the TV.
When it matters:
Bright rooms.
Score components:
Score distribution:
Screen Finish
:
Semi-gloss
What it is:
Type of coating on the screen.
When it matters:
Bright objects in the direct reflection path (for example, opposite the TV).
Good value:
Glossy is good for ambient light, but not for direct reflections.
Total Reflections
:
3.1 %
What it is:
The amount of light which is reflected off the screen, in all directions.
When it matters:
When watching TV in a bright room, with lamps, windows or walls which reflect directly off the screen.
Good value:
4.5 %
Noticeable difference:
0.5 %
Score distribution:
Indirect Reflections
:
0.4 %
What it is:
The amount of light reflected off the screen, ignoring direct (mirror-like) reflections
When it matters:
Watching TV in a bright room, without sunlight or lamps directed at the TV
Good value:
1.0 %
Noticeable difference:
0.5 %
Score distribution:
The TV has excellent reflection handling. Direct reflections are significantly reduced in intensity, and there is no purple tint like some higher-end anti-reflective coatings.
8.7
Pre Calibration
What it is:
TV's color accuracy before a full calibration. The only settings that are changed are those that don't vary from unit to unit, like picture mode, color temperature and gamma.
When it matters:
All video on an uncalibrated TV. This represents most people's use cases.
Score components:
- 46% White Balance dE
- 45% Color dE
- 9% Color Temperature
Score distribution:
White Balance dE
:
1.95
What it is:
Average inaccuracy of shades of gray.
When it matters:
Overall color temperature of all video.
Good value:
< 3
Noticeable difference:
1
Score distribution:
Color dE
:
1.64
What it is:
Average inaccuracy of colors.
When it matters:
All colors.
Good value:
< 3
Noticeable difference:
1
Score distribution:
Gamma
:
2.17
What it is:
Brightness of shades of gray.
When it matters:
Shadows.
Good value:
Between 2.1 and 2.3 (our target is 2.2)
Noticeable difference:
0.1
Color Temperature
:
6666 K
What it is:
The color temperature is a measure of the color of light. A colder color temperature (7000K) will look bluer and a warmer color temperature (4000K) will look yellower/redder. 6500K is the standard color temperature use in the TV and film industry as program, film, and photography directors usually work on monitors calibrated on the 6500k color temperature and do their color correction base on what they see on those monitors.
When it matters:
To get the most accurate picture when watching TV shows, movies or video games. This is particularly for skin tones.
Good value:
6500K
Noticeable difference:
400K
Score distribution:
Picture Mode
:
Expert (Dark Room)
What it is:
The picture mode used to do the 'Pre Calibration' measurements.
Color Temp Setting
:
Warm 2
What it is:
The best value for the TV's color temperature setting. The setting name differs between brands; for some it's "Color Temperature", for others its "White Point".
When it matters:
All content on screen
Gamma Setting
:
2.2
What it is:
The best value for the TV's gamma setting; the setting name differs between TV brands.
When it matters:
Shadows, accurate grayscale performance.
Out of the box, the TV is one of the most accurate displays we have tested. White balance dE and color dE are very low, and the color temperature is only slightly cool. The average gamma is close to our target of 2.2, but fluctuates depending on the input, so some scenes are overly bright and some are overly dark. Most people won't feel the need to have the TV professionally calibrated.
9.6
Post Calibration
What it is:
TV's color accuracy after a full calibration with a spectrophotometer.
When it matters:
All video on a TV that has been professionally calibrated. This isn't that useful, because most TVs can achieve a pretty good calibration if you spend enough time on them.
Score components:
- 46% White Balance dE
- 45% Color dE
- 9% Color Temperature
Score distribution:
White Balance dE
:
0.14
What it is:
Average inaccuracy of shades of gray.
When it matters:
Overall color temperature of all videos.
Good value:
< 3
Noticeable difference:
1
Score distribution:
Color dE
:
1.17
What it is:
Average inaccuracy of colors.
When it matters:
All colors.
Good value:
< 3
Noticeable difference:
1
Score distribution:
Gamma
:
2.18
What it is:
Brightness of shades of gray.
When it matters:
Shadows.
Good value:
Between 2.1 and 2.3 (our target is 2.2)
Noticeable difference:
0.1
Color Temperature
:
6495 K
What it is:
The color temperature is a measure of the color of light. A colder color temperature (7000K) will look bluer and a warmer color temperature (4000K) will look yellower/redder. 6500K is the standard color temperature use in the TV and film industry as program, film, and photography directors usually work on monitors calibrated on the 6500k color temperature and do their color correction base on what they see on those monitors.
When it matters:
To get the most accurate picture when watching TV shows, movies or video games. This is particularly for skin tones.
Good value:
6500K
Noticeable difference:
400K
Score distribution:
White Balance Calibration
:
20 point
What it is:
Whether the TV's white balance can be finely calibrated.
When it matters:
When calibrating the TV.
Color Calibration
:
Yes
What it is:
Whether the TV's color tone mapping can be finely calibrated.
When it matters:
When calibrating the TV.
10
4k Input
What it is:
Quality of a 4k UHD input.
When it matters:
Streaming video, UHD Blu-rays, PC use.
Score components:
Subjectively assigned
Score distribution:
4k content is displayed perfectly without any issues. Unlike the UK6300, the UK6570PUB does not use the less accurate RGBW pixel structure.
7.2
Color Gamut
What it is:
How many colors the TV can display.
When it matters:
HDR content. Includes some streaming videos and UHD Blu-rays.
Score components:
- 25% DCI P3 xy
- 25% DCI P3 uv
- 25% Rec 2020 xy
- 25% Rec 2020 uv
Score distribution:
Wide Color Gamut
:
No
What it is:
Whether the TV has an option to enable wide color gamuts.
When it matters:
HDR content. Includes some streaming videos and UHD Blu-rays.
DCI P3 xy
:
79.89 %
What it is:
Coverage of the DCI P3 colorspace on CIE 1931 xy.
When it matters:
DCI P3 content. Includes HDR, UHD Blu-rays.
Good value:
> 90%
Noticeable difference:
5%
Score distribution:
DCI P3 uv
:
86.47 %
What it is:
Coverage of the DCI P3 colorspace on CIE 1976 u' v'.
When it matters:
DCI P3 content. Includes HDR, UHD Blu-rays.
Good value:
> 90%
Noticeable difference:
5%
Score distribution:
Rec 2020 xy
:
57.67 %
What it is:
Coverage of the Rec.2020 colorspace on CIE 1931 xy.
When it matters:
Rec.2020 content. Includes HDR, UHD Blu-rays.
Good value:
> 90%
Noticeable difference:
5%
Score distribution:
Rec 2020 uv
:
64.19 %
What it is:
Coverage of the Rec.2020 colorspace on CIE 1976 u' v'.
When it matters:
Rec.2020 content. Includes HDR, UHD Blu-rays.
Good value:
> 90%
Noticeable difference:
5%
Score distribution:
The TV has a decent color gamut, but it falls short of the wide color gamut necessary for HDR content to look great.
In the 'Standard' Picture Mode, the EOTF does not follow our input stimulus, and most scenes are too dark. Unlike most TVs, we recommend setting Dynamic Contrast to 'High'. We tested the TV with this setting, as without it the TV is too dim. In PC mode, the UK6570 is even dimmer, and in Game mode it is even worse.
If you find HDR content too dim, setting the Backlight to '100' with Dynamic Tone Mapping enabled and Dynamic Contrast on 'High' improves the EOTF, and it almost follows the input stimulus perfectly.
6.1
Color Volume
What it is:
How many colors a TV can display at different luminosity levels.
When it matters:
HDR content. Includes some streaming videos, UHD Blu-rays and HDR games.
Score components:
Score distribution:
Normalized DCI P3 Coverage ITP
:
71.6 %
What it is:
How much of the DCI-P3 colorspace a TV can display at different luminosity levels
When it matters:
HDR content. Includes some streaming videos, UHD Blu-rays and HDR games.
Good value:
80%
Noticeable difference:
5%
Score distribution:
10,000 cd/m² DCI P3 Coverage ITP
:
25.9 %
What it is:
How much of the DCI-P3 colorspace a TV can display at different luminosity levels when compared to an ideal 10,000 nit TV
When it matters:
HDR content. Includes some streaming videos, UHD Blu-rays and HDR games.
Normalized Rec 2020 Coverage ITP
:
50.4 %
What it is:
How much of the Rec. 2020 colorspace a TV can display at different luminosity levels
When it matters:
HDR content. Includes some streaming videos, UHD Blu-rays and HDR games.
Good value:
80 %
Noticeable difference:
5 %
Score distribution:
10,000 cd/m² Rec 2020 Coverage ITP
:
18.2 %
What it is:
How much of the Rec 2020 colorspace a TV can display at different luminosity levels when compared to an ideal 10,000 nit TV
When it matters:
HDR content. Includes some streaming videos, UHD Blu-rays and HDR games.
The TV has mediocre color volume. In the P3 color space, it can't produce bright saturated colors. In Rec 2020, it can't fill out the entire gamut and overly saturated colors aren't very bright.
9.0
Gradient
What it is:
How finely levels of color can be displayed.
When it matters:
Details in shadows, sky and skin tones. Matters more for HDR content.
Score components:
- 25% Red (Std. Dev.)
- 25% Green (Std. Dev.)
- 25% Blue (Std. Dev.)
- 25% Gray (Std. Dev.)
Score distribution:
Color Depth
:
10 Bit
What it is:
Number of bits per pixel to represent a specific color. Note: we consider 8-bit with dithering to be equivalent to 10-bit, as long as the 10-bit gradient looks smooth.
When it matters:
HDR content like UHD Blu-ray players. Won't matter for cable TV, regular Blu-ray movies, video game consoles or content displayed from a Windows PC. Those are limited to 8-bit color.
Good value:
10-bit.
Noticeable difference:
1 bit.
Red (Std. Dev.)
:
0.080 dE
What it is:
The standard deviation of the color differences (dE) between subsequent 10 bit red shades.
When it matters:
Details in skin tones, sunsets, and other reddish objects. Matters more for HDR content.
Good value:
< 0.12 dE
Noticeable difference:
0.01 dE
Score distribution:
Green (Std. Dev.)
:
0.088 dE
What it is:
The standard deviation of the color differences (dE) between subsequent 10 bit green shades.
When it matters:
Details in ocean shades and other greenish objects. Matters more for HDR content.
Good value:
< 0.12 dE
Noticeable difference:
0.01 dE
Score distribution:
Blue (Std. Dev.)
:
0.072 dE
What it is:
The standard deviation of the color differences (dE) between subsequent 10 bit blue shades.
When it matters:
Details in skies, water and other blueish objects. Matters more for HDR content.
Good value:
< 0.12 dE
Noticeable difference:
0.01 dE
Score distribution:
Gray (Std. Dev.)
:
0.084 dE
What it is:
The standard deviation of the color differences (dE) between subsequent 10 bit gray shades.
When it matters:
Details in dull colors, such as shadows, glow and urban scenes. Matters more for HDR content.
Good value:
< 0.12 dE
Noticeable difference:
0.01 dE
Score distribution:
Excellent gradient handling. There is very little banding in areas of similar color.
10
Temporary Image Retention
What it is:
How much a static image is retained on a TV screen after a certain amount of time.
When it matters:
When watching TV show, playing video games or when using your TV as a PC monitor.
Note that this is different to permanent burn-in, learn more about permanent burn-in here.
Score components:
Score distribution:
IR after 0 min recovery
:
0.00 %
What it is:
Image retention measured right after the static image exposure, without recovery time.
When it matters:
When changing channels while watching TV, right after changing the type of content (i.e. stopping playing video game to watch a movie) or changing input.
Good value:
0 is perfect.
Noticeable difference:
0.015%
Score distribution:
IR after 2 min recovery
:
0.00 %
What it is:
Image retention measured after a recovery time of 2 minutes.
When it matters:
When changing channels while watching TV, right after changing the type of content (i.e. stopping playing video game to watch a movie) or changing input.
Good value:
0 is perfect
Noticeable difference:
0.015%
Score distribution:
IR after 4 min recovery
:
0.00 %
What it is:
Image retention measured after a recovery time of 4 minutes.
When it matters:
When changing channels while watching TV, right after changing the type of content (i.e. stopping playing video game to watch a movie) or changing input.
Good value:
0 is perfect.
Noticeable difference:
0.015%
Score distribution:
IR after 6 min recovery
:
0.00 %
What it is:
Image retention measured after a recovery time of 6 minutes.
When it matters:
When changing channels while watching TV, right after changing the type of content (i.e. stopping playing video game to watch a movie) or changing input.
Good value:
0 is perfect.
Noticeable difference:
0.015%
Score distribution:
IR after 8 min recovery
:
0.00 %
What it is:
Image retention measured after a recovery time of 8 minutes.
When it matters:
When changing channels while watching TV, right after changing the type of content (i.e. stopping playing video game to watch a movie) or changing input.
Good value:
0 is perfect.
Noticeable difference:
0.015%
Score distribution:
IR after 10 min recovery
:
0.00 %
What it is:
Image retention measured after a recovery time of 10 minutes.
When it matters:
When changing channels while watching TV, right after changing the type of content (i.e. stopping playing video game to watch a movie) or changing input.
Good value:
0 is perfect.
Noticeable difference:
0.015%
Score distribution:
There is no temporary image retention, which is great.
10
Permanent Burn-In Risk
What it is:
The risk of developing a persistent image retention, also known as burn-in, after being exposed to a static image for a prolonged time
When it matters:
When watching TV shows, playing video games or when using your TV as a PC monitor where static content is present
Score components:
Score distribution:
Permanent Burn-In Risk
:
No
What it is:
If the TV faces a risk of developing permanent burn-in after being expose, for a long period of time, to static images.
When it matters:
When watching TV shows with static logos or banners (news or sports channels), when playing video games with a HUD (head up display), and when using a TV as a PC monitors.
Although some IPS panels can suffer from temporary image retention, this doesn't appear to be permanent as the IPS panel in our long-term test appear immune.
Pixels
What it is:
The smallest element a screen can display is called a pixel. In color TVs, this consists of three (or more) subpixels. This is a picture of the TV's pixel structure.
When it matters:
It can help explain some display behaviors and can provide an indication of whether two panels are the same or not.
Motion
Score components:
- 53% Response Time
- 11% Flicker-Free
- 3% Black Frame Insertion (BFI)
- 5% Motion Interpolation
- 12% Stutter
- 11% 24p Judder
- 5% Variable Refresh Rate
Score distribution:
The LG UK6570PUB has decent motion handling. It has a fast response time that produces little motion blur, which is great. Unfortunately, it uses PWM to dim the backlight, and there is 120 Hz flicker at all brightness levels, which results in some duplications in motion. There is no option to adjust the flicker frequency. It has a decent motion interpolation feature, but its effectiveness is limited due to the 60 Hz native refresh rate. Movie lovers will be pleased, as it can remove judder from 24p sources and from the native apps.
8.6
Response Time
What it is:
Amount of blur in fast motion.
When it matters:
Sports, video games.
Score components:
- 50% 80% Response Time
- 50% 100% Response Time
Score distribution:
80% Response Time
:
4.5 ms
What it is:
How quickly pixels can reach 80% of a full transition from one color to another.
When it matters:
Fast movement.
Good value:
< 8 ms
Noticeable difference:
4 ms
Score distribution:
100% Response Time
:
15.3 ms
What it is:
How quickly pixels can fully transition from one color to another.
When it matters:
Fast movement.
Good value:
< 20 ms
Noticeable difference:
10 ms
Score distribution:
The LG UK6570PUB has an excellent fast response time. There are duplications in moving objects due to the 120Hz backlight, and this may bother some people. There is significant overshoot in some transitions, but this shouldn't cause any issues.
4.0
Flicker-Free
What it is:
How noticeable flicker is on the screen, when all optional flicker has been disabled.
When it matters:
All usages, but particularly when viewing fast motion (such as in sports and video games) or when using the TV as a PC monitor.
Score components:
Score distribution:
Flicker-Free
:
No
What it is:
Whether the screen will be perceived as having no flicker during normal viewing conditions.
When it matters:
When flicker is especially bothersome, such as when using the TV as a PC monitor.
Good value:
Yes
PWM Dimming Frequency
:
120 Hz
What it is:
The flicker frequency of the screen, when all optional flicker has been disabled.
When it matters:
All usages, but particularly when viewing fast motion (such as in sports and video games) or when using the TV as a PC monitor.
Good value:
0 Hz or very high frequencies (> 300 Hz). Frequencies that are multiples of 60Hz are better.
Score distribution:
Unfortunately, the LG UK6570 uses PWM to dim the backlight, and there is flicker at all backlight levels. It flickers at 120 Hz, which can be noticeable to most people and may bother some.
5.4
Black Frame Insertion (BFI)
What it is:
How effective the TV's flickering capabilities are in making motion look clearer, when flicker is desired.
When it matters:
When flicker is desired by the user. Flicker is especially useful to make motion look clearer when viewing 60 fps content (sports, video games) and when using motion interpolation.
Score components:
Score distribution:
Optional BFI
:
No
What it is:
Option to turn the screen black between frames.
When it matters:
When flicker is desired by the user. Flicker is especially useful to make motion look clearer when viewing 60 fps content (sports, video games) and when using motion interpolation.
Good value:
Yes
Min Flicker for 60 fps
:
120 Hz
What it is:
Lowest possible frequency of flickering pattern when playing 60 fps content.
When it matters:
When viewing fast motion such as sports and video games.
Good value:
60 Hz
Noticeable difference:
20 Hz
Score distribution:
60 Hz for 60 fps
:
No
What it is:
Whether the screen can flicker at 60 Hz when playing 60 fps content.
When it matters:
When playing 60 fps content, such as sports and video games.
Good value:
Yes
120 Hz for 120 fps
:
N/A
What it is:
Whether the screen can flicker at 120 Hz when playing 120 fps content.
When it matters:
When playing 120 fps content, such as when using motion interpolation on a 120 Hz TV.
Good value:
Yes
Min Flicker for 60 fps in Game Mode
:
120 Hz
What it is:
Lowest possible frequency of flickering pattern when playing 60 fps content in Game Mode.
When it matters:
When playing video games with fast motion.
Good value:
60 Hz
Noticeable difference:
20 Hz
Score distribution:
The LG UK6570PUB does not have an option to adjust the backlight flicker to improve motion blur. Since the backlight flickers at 120 Hz by default, there would be little benefit to further reducing the flicker frequency, especially since 60 Hz flicker bothers many people.
7.0
Motion Interpolation
What it is:
Also known as 'Soap Opera Effect'. It is an optional feature that increases the frame rate of the video, smoothing movement.
When it matters:
If you like the look of smoothed video. Not everyone does.
Score components:
Score distribution:
Motion Interpolation (30 fps)
:
Yes
What it is:
Whether the TV can take a 30 fps input and heighten the frame rate to at least 60 fps.
When it matters:
30 fps or lower videos. Includes movies, TV shows, some video games.
Motion Interpolation (60 fps)
:
No
What it is:
Whether the TV can take a 60 fps input and heighten the frame rate to at least 100 fps.
When it matters:
60 fps videos. Includes some video games, some sports channels.
The TV has a motion interpolation feature, but is limited to interpolating 30 fps content up to 60 fps, due to the 60 Hz panel. The 86" model has a 120 Hz panel, and is likely able to interpolate up to 120 fps.
Motion interpolation is enabled by setting TruMotion to 'User', and adjusting the De-Judder slider. Enabling motion interpolation can cause artifacts in some scenes.
7.7
Stutter
What it is:
Jarring effect caused by static frame time during motion sequences
When it matters:
When watching content with long panning shots and other smooth movement
Score components:
Score distribution:
Frame Hold Time @ 24 fps
:
26.4 ms
What it is:
Time that frame is static during 24Hz videos such as movies
When it matters:
When watching movies and other low frame rate content which contain panning shots
Good value:
< 24 ms
Noticeable difference:
5 ms
Score distribution:
Frame Hold Time @ 60 fps
:
1.4 ms
What it is:
Time that frame is static during 60 fps content such as TV shows
When it matters:
When watching 60 fps content containing slow panning shots (such as field sports)
Good value:
< 24 ms
Noticeable difference:
5 ms
Score distribution:
The LG 75UK6570 does stutter a bit with 24p content, but not as much as many other TVs.
7.8
24p Judder
What it is:
Whether 24p content can play without any judder.
When it matters:
Only 24p content (mostly just movies).
Score components:
Score distribution:
Judder-Free 24p
:
Yes
What it is:
Judder-free movies over 24p signal.
When it matters:
Blu-ray and DVD movies; 24 hz PC signal.
Judder-Free 24p via 60p
:
No
What it is:
Judder-free movies over 60p signal.
When it matters:
Movies from streaming devices (Apple TV, Fire TV, etc.); 60 hz PC signal.
Judder-Free 24p via 60i
:
No
What it is:
Judder-free movies over 60i signal.
When it matters:
Movies from cable/satellite boxes.
Judder-Free 24p via Native Apps
:
Yes
What it is:
Judder-free movies when playing from native apps.
When it matters:
Movies from streaming native apps (Netflix, Amazon TV, etc.).
The LG 75UK6570PUB is able to remove judder from 24p sources and native apps only. It cannot remove judder from embedded sources, such as when watching a 24p movie from a cable box that sends 60p.
The Real Cinema feature must be enabled to remove judder from 24p sources.
0
Variable Refresh Rate
What it is:
How frequently the TV can refresh and show new frames, and whether it can vary its refresh rate in real time using technologies like HDMI Forum's Variable Refresh Rate.
When it matters:
Mostly for gaming, but does provide a little better motion during normal usage.
Score components:
- 25% 4k VRR Maximum
- 25% 4k VRR Minimum
- 25% 1080p VRR Maximum
- 25% 1080p VRR Minimum
Score distribution:
Native Refresh Rate
:
60 Hz (except 86")
What it is:
The out-of-the-box maximum refresh rate; how frequently the TV can refresh and show new frames.
When it matters:
When playing content with a frame rate that matches the TV's refresh rate (ex. 60 fps on a 60 Hz TV, 120 fps on a 120 Hz TV), or when using the TV's motion interpolation feature (soap opera effect).
Good value:
60 Hz
Variable Refresh Rate
:
No
What it is:
Feature that allows the TV to synchronize its refresh rate with the input device's output and reduces stuttering and screen tearing.
When it matters:
Almost every usage, but is most noticeable when gaming where constant fluctuation in framerate cause distracting artifacts.
4k VRR Maximum
:
N/A
What it is:
The maximum frequency covered by the Variable Refresh Rate feature of the TV when the input signal is 4k.
When it matters:
Any time the VRR feature is enabled and 4k is sent.
Good value:
Matches maximum refresh rate at 4k.
Noticeable difference:
10 Hz
Score distribution:
4k VRR Minimum
:
N/A
What it is:
The lowest frequency covered by the TV's Variable Refresh Rate feature when the input signal is 4k.
When it matters:
When using the VRR feature of the TV at lower frame rates when sending a 4k signal.
Good value:
30 Hz
1080p VRR Maximum
:
N/A
What it is:
The maximum frequency covered by the Variable Refresh Rate feature of the TV when the input signal is 1080p.
When it matters:
Any time the VRR feature is enabled and 1080p is sent.
Good value:
Matches maximum refresh rate at 1080p.
Noticeable difference:
10 Hz
Score distribution:
1080p VRR Minimum
:
N/A
What it is:
The lowest frequency covered by the TV's Variable Refresh Rate feature when the input signal is 1080p.
When it matters:
When using the VRR feature of the TV at lower frame rates when sending a 1080p signal.
Good value:
30 Hz
VRR Supported Connectors
:
N/A
What it is:
The inputs which support a variable refresh rate (eg. HDMI, DisplayPort)
When it matters:
When gaming with different consoles or graphics cards.
The 70" and 75" UK6570s have a 60 Hz native refresh rate, the 86" model has a 120 Hz native refresh rate.
Inputs
Score components:
- 86% Input Lag
- 14% Supported Resolutions
Score distribution:
The LG UK6570 has excellent low input lag and supports the most common input resolutions. Unfortunately, there is no 1440p support and the refresh rate is limited to 60 Hz due to the 60 Hz panel on the 70UK6570 and 75UK6570. The 86UK6570 should support a 120 Hz input, as it has a 120 Hz panel. Chroma 4:4:4 is displayed properly, as long as the input label is set to 'PC'.
9.9
Input Lag
What it is:
Delay between input and onscreen reaction.
When it matters:
Video games; when TV is used as PC monitor.
Score components:
- 36% 1080p @ 60 Hz
- 1% 1440p @ 60 Hz
- 38% 4k @ 60 Hz
- 19% 4k @ 60 Hz + HDR
- 3% 4k @ 60 Hz @ 4:4:4
- 1% 1080p @ 120 Hz
- 1% 1080p with Variable Refresh Rate
- 1% 4k with VRR
Score distribution:
1080p @ 60 Hz
:
10.7 ms
What it is:
Lowest input lag possible for a 1080p @ 60 Hz input signal.
When it matters:
Gaming and PC use.
Good value:
< 40 ms
Noticeable difference:
15 ms
Score distribution:
1080p @ 60 Hz Outside Game Mode
:
126.8 ms
What it is:
Lowest input lag possible for a 1080p @ 60 Hz input signal when in a fully featured picture mode.
When it matters:
For gaming and PC use, while retaining access to all features of the TV.
Good value:
< 40 ms
Noticeable difference:
15 ms
1440p @ 60 Hz
:
N/A
What it is:
Lowest input lag possible for a 1440p @ 60Hz input signal.
When it matters:
Gaming and PC use.
Good value:
< 40 ms
Noticeable difference:
15 ms
Score distribution:
4k @ 60 Hz
:
10.9 ms
What it is:
Lowest input lag possible for a 4k @ 60 Hz input signal.
When it matters:
Gaming and PC use.
Good value:
< 40 ms
Noticeable difference:
15 ms
Score distribution:
4k @ 60 Hz + HDR
:
11.2 ms
What it is:
Lowest input lag possible for a 4k @ 60 Hz + HDR input signal.
When it matters:
Gaming and PC use in HDR.
Good value:
< 40 ms
Noticeable difference:
15 ms
Score distribution:
4k @ 60 Hz @ 4:4:4
:
10.8 ms
What it is:
Lowest input lag possible when displaying 4k @ 60 Hz with proper full 4:4:4 chroma, without subsampling. For this test a 4k @ 60 Hz @ 4:4:4 signal is usually used, but a 4k @ 60 Hz @ Full RGB signal may be used if it's required for the TV to show proper 4:4:4 chroma subsampling.
When it matters:
PC use and gaming where fine text display (ClearType) is needed.
Good value:
< 40 ms
Noticeable difference:
15 ms
Score distribution:
4k @ 60 Hz Outside Game Mode
:
127.0 ms
What it is:
Lowest input lag possible for a 4k @ 60 Hz input signal when in a fully featured picture mode.
When it matters:
For gaming and PC use, while retaining access to all features of the TV.
Good value:
< 40 ms
Noticeable difference:
15 ms
4k @ 60 Hz With Interpolation
:
127.1 ms
What it is:
Lowest input lag possible for a 4k @ 60 Hz input signal, when motion interpolation is turned on.
When it matters:
When you want to play video games with motion interpolation (Soap Opera Effect) enabled.
Good value:
< 40 ms
Noticeable difference:
15 ms
8k @ 60 Hz
:
N/A
What it is:
Lowest input lag possible for an 8k @ 60Hz input signal.
When it matters:
PC use.
Good value:
< 40 ms
Noticeable difference:
15 ms
1080p @ 120 Hz
:
N/A
What it is:
Lowest input lag possible for a 1080p @ 120 Hz input signal.
When it matters:
Console gaming and PC gaming.
Good value:
< 40 ms
Noticeable difference:
15 ms
Score distribution:
1440p @ 120 Hz
:
N/A
What it is:
Lowest input lag possible for a 1440p @ 120 Hz input signal.
When it matters:
Console gaming and PC gaming.
Good value:
< 40 ms
Noticeable difference:
15 ms
4k @ 120 Hz
:
N/A
What it is:
Lowest input lag possible for a 4k @ 120 Hz input signal.
When it matters:
Console gaming and PC gaming.
Good value:
< 40 ms
Noticeable difference:
15 ms
1080p with Variable Refresh Rate
:
N/A
What it is:
Lowest input lag possible for a 1080p input signal when using Variable Refresh Rate (FreeSync, etc).
When it matters:
When gaming with a device that supports Variable Refresh Rate, such as the Xbox One X or a PC.
Good value:
< 40 ms
Noticeable difference:
15 ms
Score distribution:
1440p with VRR
:
N/A
What it is:
Lowest input lag possible for a 1440p input signal when using Variable Refresh Rate (FreeSync, etc).
When it matters:
When gaming with a device that supports Variable Refresh Rate, such as the Xbox One X or a PC.
Good value:
< 40 ms
Noticeable difference:
15 ms
4k with VRR
:
N/A
What it is:
Lowest input lag possible for a 4k input signal when using Variable Refresh Rate (FreeSync, etc).
When it matters:
When gaming with a device that supports Variable Refresh Rate, such as the Xbox One X or a PC.
Good value:
< 40 ms
Noticeable difference:
15 ms
Score distribution:
8k with VRR
:
N/A
What it is:
Lowest input lag possible for an 8k input signal when using Variable Refresh Rate (FreeSync, etc).
When it matters:
When using a PC that supports Variable Refresh Rate.
Good value:
< 40 ms
Noticeable difference:
15 ms
7.5
Supported Resolutions
What it is:
Different resolutions supported by TV.
When it matters:
PC monitor usage.
Score components:
- 17% 1080p @ 60 Hz @ 4:4:4
- 8% 1080p @ 120 Hz
- 8% 1440p @ 60 Hz
- 4% 1440p @ 120 Hz
- 34% 4k @ 60 Hz
- 25% 4k @ 60 Hz @ 4:4:4
- 4% 8k @ 30 Hz or 24 Hz
Score distribution:
1080p @ 60 Hz @ 4:4:4
:
Yes
What it is:
Whether the TV can properly display a 1080p @ 60 Hz @ 4:4:4 signal sent from a physical input (HDMI, etc).
When it matters:
ClearType text display for PC productivity and gaming with fine text.
1080p @ 120 Hz
:
No
What it is:
Whether the TV can properly display a 1080p @ 120 Hz signal sent from a physical input (HDMI, etc).
When it matters:
Console gaming and PC gaming.
1440p @ 60 Hz
:
No
What it is:
Whether the TV can properly display a 1440p @ 60 Hz signal sent from a physical input (HDMI, etc).
When it matters:
Gaming and PC use.
1440p @ 120 Hz
:
No
What it is:
Whether the TV can properly display a 1440p @ 120 Hz signal sent from a physical input (HDMI, etc).
When it matters:
Console gaming and PC gaming.
4k @ 60 Hz
:
Yes
What it is:
Whether the TV can properly display a 4k @ 60 Hz signal sent from a physical input (HDMI, etc).
When it matters:
4k Blu-rays, gaming, PC use, etc.
4k @ 60 Hz @ 4:4:4
:
Yes
What it is:
Whether the TV can properly display a 4k @ 60 Hz @ 4:4:4 signal sent from a physical input (HDMI, etc).
When it matters:
ClearType text display for PC productivity and gaming with fine text.
4k @ 120 Hz
:
No
What it is:
Whether the TV can properly display a 4k @ 120 Hz signal sent from a physical input (HDMI, etc).
When it matters:
PC gaming.
8k @ 30 Hz or 24 Hz
:
No
What it is:
Whether the TV can properly display an 8k @ 30 Hz or 24 Hz signal sent from a physical input (HDMI, etc).
When it matters:
PC use.
8k @ 60 Hz
:
No
What it is:
Whether the TV can properly display an 8k @ 60 Hz signal sent from a physical input (HDMI, etc).
When it matters:
PC use.
The TV supports the most common resolutions, but it does not support 1440p, even if forced. The 70" and 75" models do not support a 120 Hz input, due to the 60 Hz panel. The 86" model has a 120 Hz refresh rate, but we don't know if it will accept a 120 Hz input.
HDR10
:
Yes
What it is:
Standard HDR format.
When it matters:
Most common format. All UHD Blu-ray discs are required to have it.
HDR10+
:
No
What it is:
Enhanced version of HDR10, adds dynamic metadata like that found in Dolby Vision.
When it matters:
When playing HDR10+ content, such as from Amazon Video and some Blu-ray disks.
Dolby Vision
:
No
What it is:
Better format, due to its dynamic nature.
When it matters:
Dolby Vision mastered content. Current available from streaming services (Netflix, Amazon Video), some Blu-Ray players, the Apple TV 4k and ChromeCast Ultra.
HLG
:
Yes
What it is:
HLG or Hybrid Log Gamma is a broadcast HDR format.
When it matters:
HLG capable sources such as Youtube or OTA broadcasts in specific regions. Backwards compatible with SDR TVs.
HDMI 2.0 Full Bandwidth
:
Yes (HDMI 1,2,3,4)
What it is:
HDMI 2.0 is the main used HDMI standard and supports a range of video resolutions and refresh rates up to 4k@60Hz, with a total maximum bandwidth up to 18Gbps.
HDMI 2.1
:
No
What it is:
Whether the manufacturer advertises HDMI 2.1 support.
When it matters:
When using an HDMI 2.1 source that takes advantage of its new features.
Audio Passthrough
What it is:
Whether the specific audio format (ex. Dolby Digital) can be sent by the source, pass through the TV, and be re-sent to an audio sink (such as a receiver) with all its functionality intact.
When it matters:
When playing surround sound using a receiver or soundbar, from a source that is connected to the TV.
ARC
:
Yes (HDMI 2)
What it is:
Audio Return Channel (ARC) enables a TV to transmit, via an HDMI cable, audio data to an A/V receiver, without the need for any extra audio cables.
When it matters:
When connecting your audio/video receiver directly to your TV via an HDMI cable.
eARC support
:
No
What it is:
Whether the TV supports Enhanced Audio Return Channel (eARC).
When it matters:
Passthrough of Dolby Atmos/TrueHD and DTS-HD MA / DTS:X .
Dolby Atmos via TrueHD via eARC
:
No
What it is:
Whether the TV can receive and pass a Dolby Atmos signal to a receiver via HDMI eARC, when Dolby TrueHD is used as the carrier signal.
When it matters:
Blu-rays and video games with Dolby Atmos audio.
DTS:X via DTS-HD MA via eARC
:
No
What it is:
Whether the TV can receive and pass a DTS:X signal to a receiver via HDMI eARC, when DTS-HD MA is used as the carrier signal.
When it matters:
Blu-rays and video games with DTS:X audio.
5.1 Dolby Digital via ARC
:
Yes
What it is:
Whether the TV can receive and pass a Dolby Digital 5.1 signal to a receiver via HDMI ARC.
When it matters:
5.1 audio on DVDs, Blu-rays and video games.
5.1 DTS via ARC
:
Yes
What it is:
Whether the TV can receive and pass a DTS 5.1 signal to a receiver via HDMI ARC.
When it matters:
5.1 audio on DVDs, Blu-rays and video games.
Sound Quality
What it is:
How well and accurately the audio is reproduced.
When it matters:
When a good and accurate sound reproduction is needed.
Score components:
- 75% Frequency Response
- 25% Distortion
Score distribution:
The sound quality of the LG UK6570 is average. This TV doesn't produce any sub-bass or rumble, but has a decent amount of body and punch to its bass. It also produces clear and intelligible dialog. However, it does not get loud, so won't be suitable for large and crowded places. For a better sound, dedicated speakers or soundbars are recommended.
6.4
Frequency Response
What it is:
How accurately the sound level of each frequency is being produced.
When it matters:
For a balanced and neutral sound.
Score components:
- 30% Low-Frequency Extension
- 5% Std. Dev. @ 70
- 20% Std. Dev. @ 80
- 15% Std. Dev. @ Max
- 20% Max
- 10% Dynamic Range Compression
Score distribution:
Low-Frequency Extension
:
89.80 Hz
What it is:
The lowest frequency at which the frequency response reaches -3dB of the target response.
When it matters:
Movies, Gaming. Shows how extended the bass is.
Good value:
< 60Hz
Noticeable difference:
10Hz
Score distribution:
Std. Dev. @ 70
:
2.29 dB
What it is:
The amount of deviation (weighted standard deviation) in frequency response measured at 70dB SPL, as compared to a target response that would sound perfectly balanced to most people.
When it matters:
Shows the TV's frequency response at quiet listening levels
Good value:
< 4 dB
Noticeable difference:
0.5 dB
Score distribution:
Std. Dev. @ 80
:
3.29 dB
What it is:
The amount of deviation (weighted standard deviation) in frequency response measured at 80dB SPL, as compared to a target response that would sound perfectly balanced to most people.
When it matters:
Shows the TV's frequency response at moderate listening levels
Good value:
< 4 dB
Noticeable difference:
0.5 dB
Score distribution:
Std. Dev. @ Max
:
4.79 dB
What it is:
The amount of deviation (weighted standard deviation) in frequency response measured with the TV at maximum volume, as compared to a target response that would sound perfectly balanced to most people.
When it matters:
Shows the TV's frequency response at under maximum load
Good value:
< 4 dB
Noticeable difference:
2 dB
Score distribution:
Max
:
83.5 dB SPL
What it is:
Maximum volume reached by the TV at their optimum viewing distance (size dependent)
When it matters:
For listening to loud audio.
Good value:
> 88 dB
Noticeable difference:
2 dB
Score distribution:
Dynamic Range Compression
:
3.93 dB
What it is:
The amount of difference between the TVs frequency response performance at 70dB SPL and Max dB SPL. Too much compression will result in pumping in the sound.
When it matters:
When an accurate and free-of-pumping performance is required at higher volumes
Good value:
< 3dB
Noticeable difference:
0.5
Score distribution:
The frequency response is average-at-best. LFE (low-frequency extension) is at 90Hz, which is decent. This means this TV won't produce any thump or rumble in the sub-bass region, but does have a good amount of punch and body to its bass. The response above the LFE points is even and flat, which is great and important for producing clear and intelligible dialog. However, this TV doesn't get loud, which may be a deal breaker if it's going to be used in large and crowded environments.
6.7
Distortion
What it is:
Deformation of an output signal compared to its input, usually clipping, harmonic distortion, or inter-modulation distortion caused by non-linear behavior of the sound system.
When it matters:
When a clean, pure and transparent reproduction is desired.
Score components:
- 40% Weighted THD @ 80
- 25% Weighted THD @ Max
- 10% IMD @ 80
- 25% IMD @ Max
Score distribution:
Weighted THD @ 80
:
0.326
What it is:
The overall amount of harmonic distortion measured at 80dB SPL. To make the score more perceptually relevant, more weight is given to the higher frequencies.
When it matters:
How pure the sound is at moderate listening levels.
Good value:
< 0.100
Noticeable difference:
0.100
Score distribution:
Weighted THD @ Max
:
1.148
What it is:
The overall amount of harmonic distortion measured at the TV's maximum SPL. To make the score more perceptually relevant, more weight is given to the higher frequencies.
When it matters:
How pure the sound is at moderate listening levels.
Good value:
< 0.100
Noticeable difference:
0.100
Score distribution:
IMD @ 80
:
2.27 %
What it is:
The average amount of inter-modulation distortion produced by the TV under maximum load. The percentage shown here is the average result of 3 separate test signals/standards: SMPTE, DIN, & CCIF
When it matters:
When a clean and free of aliasing reproduction is desired
Good value:
< 5%
Noticeable difference:
2
Score distribution:
IMD @ Max
:
6.52 %
What it is:
The average amount of inter-modulation distortion produced by the TV under maximum load. The percentage shown here is the average result of 3 separate test signals/standards: SMPTE, DIN, & CCIF
When it matters:
When a clean and free of aliasing reproduction is desired
Good value:
< 5%
Noticeable difference:
2
Score distribution:
The distortion performance is decent. The overall amount of THD produced at 80dB is within decent limits. Also, there is not a big rise in THD under maximum load, which is good. However, this TV doesn't get very loud, so producing low THD at its maximum volume isn't that impressive.
Smart Features
Score components:
- 42% Interface
- 2% Ad-Free
- 37% Apps and Features
- 16% Remote
- 3% Remote App
Score distribution:
The LG UK6570PUB has good smart features. The WebOS interface is easy to navigate, but some people may find it convoluted. The content store has an excellent selection of apps, and there are built-in apps and media players that cover most of the basics. The included remote is somewhat simple, and it requires line-of-sight with the TV, but it can be replaced with the LG Magic remote.
8.5
Interface
What it is:
The usability, features and performance of the main interface of the TV, not including the interfaces of the apps themselves.
When it matters:
Anytime when using the TV, but especially when changing settings and using apps.
Score components:
Subjectively assigned
Score distribution:
Ease of Use
:
Easy
What it is:
How easy the interface is to navigate, affected by the organization of its layout, placing frequently accessed elements in areas that are faster to access, etc.
When it matters:
When using the smart features.
Smoothness
:
Average
What it is:
How smooth the interface is to navigate, affected by lag and frame drops.
When it matters:
When using the smart features.
Time Taken to Select YouTube
:
2 s
What it is:
How long it takes to select YouTube for launch, starting from HDMI 1 input, when YouTube is placed first on the list of apps or added as a shortcut. This does not include app launch time, and does not use a fixed YouTube button on a remote. This serves as an indication of the time needed to select any app.
When it matters:
When launching any app.
Time Taken to Change Backlight
:
10 s
What it is:
The time it takes to navigate to the 'Backlight' setting ('Brightness' on Sony TVs). This serves as an indication of how long it takes to navigate to basic TV settings.
When it matters:
When changing TV settings.
Advanced Options
:
Many
What it is:
Whether advanced options and settings are available, such as color calibration.
When it matters:
When customizing the TV and using the smart features.
The TV runs the latest version of LG's WebOS. Not much has changed on WebOS in recent years, and while some people may find it a bit messy, overall it is very easy to use and fast.
0
Ad-Free
What it is:
Whether or not ads can be found on the TV's smart platform.
When it matters:
When using the smart features.
Score distribution:
Ads
:
Yes
What it is:
Whether the TV's main interface has ads. This does take into account ads in third-party apps.
When it matters:
When using the smart features.
Opt-out
:
No
What it is:
Whether or not you can opt out of all ads. A TV only passes this test if it allows you to remove them completely, not just disable the personalized advertising.
When it matters:
When using the smart features.
Suggested Content in Home
:
Yes
What it is:
Whether suggested content appears in the TV's home menu or main menu. Suggested content can include recommended movies, TV shows, YouTube videos etc.
Opt-out of Suggested Content
:
No
What it is:
Whether the suggested content feed in the home menu can be removed or hidden
Like all LG TVs, there are intermittent ads displayed within the content store. The UK6570 shows ads in the content store, as seen on the SK8000. They cannot be removed, and there is no option to opt-out completely, although ad-tracking can be disabled. Suggested content sometimes appears in the home menu.
8.0
Apps and Features
What it is:
The usability, features and performance of apps and other smart features.
When it matters:
Only when using smart features such as apps, casting and USB playback.
Score components:
Subjectively assigned
Score distribution:
App Selection
:
Many
What it is:
The number and variety of apps available to download for the smart platform.
When it matters:
When downloading new apps.
App Smoothness
:
Average
What it is:
How smooth it feels to navigate the interfaces of apps, affected by lag and frame drops.
When it matters:
When using apps.
USB Drive Playback
:
Yes
What it is:
Whether the TV can play content from a drive connected to one of the TV's USB ports.
USB Drive HDR Playback
:
Yes
What it is:
Whether HDR files played from a USB drive can be displayed properly.
HDR in Netflix
:
Yes
What it is:
Whether HDR content on Netflix can be played back in HDR using the native Netflix app.
HDR in YouTube
:
Yes
What it is:
Whether HDR content on YouTube can be played in HDR using the native YouTube app.
The LG content store has one of the widest selections of available apps. The built-in apps and media players work well, and support most common media formats.
6.5
Remote
What it is:
The usability and features of the TV's physical remote.
Score components:
Subjectively assigned
Score distribution:
CEC Menu Control
:
Yes
What it is:
Whether the remote can act as a universal remote for HDMI CEC enabled devices. This was tested on our Samsung UBD-K8500 4K Blu-ray player, and may not be valid for other CEC devices as implementations vary by manufacturer.
Other Smart Features
:
No
What it is:
Whether the remote has any other smart features, such as a pointer, universal remote support for non HDMI CEC devices, etc.
The TV comes with a basic remote, like the UK6300. There are a few quick access buttons, but there is no voice control on the remote and it requires direct line-of-sight to the TV.
Although sold separately, the UK6570 is compatible with the LG Magic Remote. When paired with a Magic Remote all functions of the remote work, including quick access to Google Assistant and the virtual pointer. With a Magic Remote, line-of-sight is no longer required, great if you like to move around the house with the TV on.
7.0
Remote App
What it is:
The features of the official phone and tablet app for the TV.
Score components:
Subjectively assigned
Score distribution:
Acts as the Remote
:
Yes
What it is:
Whether the remote app can emulate all the buttons of the physical remote.
Directly Launches Apps and Inputs
:
Both
What it is:
Whether the remote app can directly launch the TV's apps and change between its inputs, without requiring any interaction with menus on the TV.
Streams Device Files
:
Yes
What it is:
Whether the remote app can stream files from the phone or tablet to the TV, files such as pictures, music and video.
Controls TV Settings
:
No
What it is:
Whether the app can change all or some of the settings on the TV, such as the backlight.
The remote app is decent. It works well as a replacement remote, and can directly launch some apps as well as changing inputs. It can also stream media from your mobile device to your TV. Unfortunately, there is no voice control from the remote app.
Differences between Sizes and Variants
We tested the 75" UK6570 (75UK6570PUB) and for the most part, we expect our review to be valid for the 86" UK6570 (86UK6570PUB).
The 70" variant (70UK6570PUB) has a VA panel, and we expect it to have a better native contrast ratio, but worse viewing angles.
If someone comes across a different type of panel or if their LG UK6570 doesn't correspond to our review, let us know and we will update the review. Note that some tests such as the gray uniformity may vary between individual units.
| Size | US Model | EU Model | Panel Type | Refresh Rate | Other Notes |
| 43" | 43UK6500AUA | 43UK6500PLA | IPS | 60 | |
| 50" | 50UK6500AUA | 50UK6500PLA | VA | 60 | |
| 55" | 55UK6500AUA | 55UK6500PLA | IPS | 60 | |
| 65" | 65UK6500AUA | 65UK6500PLA | IPS | 60 | |
| 70" | 70UK6570PUB | N/A | VA | 60 | |
| 75" | 75UK6570PUB | 75UK6500PLA | IPS | 60 | |
| 86" | 86UK6570PUB | 86UK6500PLA | IPS | 120 | - α7 processor |
The 75UK6570 we reviewed was manufactured in June 2018
Update 10/25/2018: The 43" UK6500 was incorrectly listed as having a VA panel, it has an IPS panel.
Compared to other TVs
Top left: Vizio E Series 2018 (E65-F0). Bottom left: LG UK7700 (55UK7700). Middle: LG UK6570 (75UK6570PUB). Top right: Sony X850F (XBR65X850F). Bottom right: Samsung NU7100 (UN55NU7100). Unlike our other photographs, this picture wasn't taken under a controlled environment, so do not draw conclusions from it.
The 75UK6570 is a good TV for most uses. It is aggressively priced, and beats most of the competition in the same price range. See our recommendations for the best 75 inch TVs.
Samsung NU7100
40" 43" 50" 55" 58" 65" 75"
These are two different types of TVs, so if you have a room with wide seating arrangement, then the LG UK6570 might be better due to the wide viewing angles. On the other hand, in a darker room, the blacks of the Samsung NU7100 are deeper and enhance the picture quality provided you sit straight in front. In terms of less critical differences, the LG UK6570 can handle reflections better and has a crisper image due to the faster response time.
Samsung NU8000
49" 55" 65" 75" 82"
These two TVs are very different. However, most people will agree that the Samsung NU8000 is much better than the LG UK6570 overall. The LG has an IPS panel and is more suitable for a room with a wide seating arrangement, thanks to its better viewing angles. The Samsung, on the other hand, has better dark room performance, provided you sit right in front. The Samsung NU8000 can also get brighter to fight glare, and has a few gaming goodies like FreeSync support and auto low latency.
LG UK6300
43" 49" 50" 55" 65"
The LG UK6570 is much better than the LG UK6300. The UK6570 is much brighter with SDR content and has better color volume. The UK6570 has better motion handling, thanks to a faster response time. Finally, native 4k content looks better on the UK6570 since it does not use the less accurate RGBW sub-pixel structure found on the UK6300.
LG B8 OLED
55" 65"
The LG B8 and the LG UK6570 have different panel technologies, each with their advantages and disadvantages. The B8 can deliver true blacks and a much better dark room performance, thanks to its OLED panel. The B8 has wider viewing angles, a faster response time, and much better gray uniformity, all of which are great for watching sports. The UK6570 has an IPS panel that is immune to the risk of burn-in.
Vizio E Series 2018
43" 50" 55" 65" 70" 75"
Overall, the Vizio E Series 2018 and LG UK6570 are very similar. The Vizio E Series 2018 has a VA panel, and is better suited for dark room viewing sitting directly in front. The LG UK6570 has an IPS panel, and is better suited for a bright room with side seating. The UK6570 has an optional motion interpolation feature, great for fans of the soap opera effect. The LG also has lower input lag, great for gaming or for use as a PC monitor.
Samsung NU6900
43" 50" 55" 65" 75"
The LG UK6570 is a bit better than the Samsung NU6900, unless dark room performance is important. The UK6570 has wider viewing angles than the NU6900 and better reflection handling, making it a better choice for bright rooms with lots of side seating. The UK6570 has a faster response time, so motion looks clearer with less blur trail. The NU6900 has a VA panel, and is better suited for a dark room with no side seating.
Sony X850F
65" 75" 85"
The Sony X850F and the LG UK6570 are very similar overall. The X850F is brighter in SDR and HDR, and has a wide color gamut. The X850F has better overall motion handling, with a slightly faster response time, nearly flicker-free backlight, and better motion interpolation thanks to the 120 Hz panel. The LG UK6570 has much lower input lag, great for gaming or for use as a PC monitor. The 85" X850F uses a VA panel, compared to the 86" UK6570 that has an IPS panel, so the XBR85X850F likely will perform better in a dark room.
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Conclusion
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B&H
The LG 75UK6570 is a good TV for most uses. It is well suited for gaming in SDR or watching TV shows and sports during the day. Unfortunately, dark room performance might be disappointing to some people, and although it supports HDR, there is little benefit to it as it lacks a wide color gamut and isn't very bright in HDR. The wide viewing angles, low input lag, and chroma 4:4:4 support make it a great choice for a computer monitor.
The LG UK6570PUB is a mediocre TV for watching movies in a dark room. It has a decent contrast ratio, but inadequate black uniformity, so blacks appear gray in a dark room. It also lacks a local dimming feature. It is able to remove judder from true 24p sources like a Blu-ray player, but not when they are being played from a cable box that embeds the movie in a 60p signal.
This is a very good TV for watching TV Shows during the day. It has good peak brightness in SDR and excellent reflection handling, and the wide viewing angles make it great for watching TV while doing chores around the house. Older sub-1080p content is displayed well, as the UK6570 doesn't use an RGBW sub-pixel arrangement.
Good TV for watching sports. It has a fast response time, but there is a short blur trail behind fast moving objects. It also has mediocre gray uniformity, and there is noticeable DSE that may bother some people. It is bright enough in SDR for most rooms, and has excellent reflection handling. It also has wide viewing angles, great for watching a game with a group of friends.
This TV is great for playing video games. It has the lowest input lag we've measured on a TV, great for even the most competitive gamers. It has a fast response time, so motion is clear with only a short blur-trail, but the 120 Hz PWM flicker may bother some people and causes duplications. It supports most common input resolutions, but it doesn't support 1440p or 120 Hz.
The TV is only mediocre for watching movies in HDR. Unfortunately, it can't get very bright in HDR and doesn't have a wide color gamut. It also has only decent contrast and disappointing black uniformity, so dark room performance is disappointing. It also lacks a local dimming feature.
This TV is good for HDR gaming. It has outstanding low input lag, with a fast response time, so motion looks clear and games are responsive. Unfortunately, HDR doesn't add much, as it doesn't have a wide color gamut and isn't very bright in HDR. It also doesn't perform very well in a dark room, as it has only decent contrast, disappointing black uniformity, and lacks a local dimming feature.
The UK6570 is a very good TV for use as a PC monitor. It has outstanding low input lag, ensuring a responsive experience. Chroma 4:4:4 is displayed perfectly, so text looks clear, and it has wide viewing angles, so the sides of the screen remain accurate when sitting fairly close to the TV. It also has a fast response time, so motion looks clear, and there is no risk of temporary image retention or permanent burn-in.
