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Reviewed on Jul 03, 2018 , Eric Bousquet, Ian Cumming, Bruno St-Georges-Robert, Dimitris Katsaounis, Yannick Khong

LG UK7700
TV REVIEW

Usage Ratings - Version 1.2

Test Benches: test

  • 1.2: Winter 2018
  • 1.1: Summer 2017
  • 1.0: Winter 2015
  • 0.9: Winter 2014
  • 0.8: Winter 2013
7.6
Mixed Usage
What it is General purpose. The TV will be used for a variety of content and usages. Movies at night, TV shows during the day, video games from time to time, etc.
Score components:
Value for price beaten by
What it is: Product with the best value in this price range
Other best choice in a cheaper price range
Other best choice in a pricier price range
Automatically updated every hour based on the scores and prices of all other products we've tested.
: TCL R617
6.4
Movies
What it is Movies in the dark. The TV will be used for watching movies in a controlled environment, directly in front, in a home theater way. Mostly only high quality content, like Blu-rays, UHD Blu-rays, streaming and a little bit of HDR.
Score components:
8.1
TV Shows
What it is TV Shows in a bright living room. The TV will be used in to watch TV shows, in a bright room during the day, from multiple viewing positions at different angles. The content watched has an average quality: cable, streaming, SD channels, etc.
Score components:
7.8
Sports
What it is Sports in a living room. The TV will be used to watch sports during the day, like football or hockey. Usually watched with a group, so from multiple viewing position.
8.3
Video Games
What it is Video games. The TV will be used to play video games, directly in front, in a controlled light environment. Usually fast games, like online FPS, where motion blur and input lag is important.
6.3
HDR Movies
What it is HDR Movies and TV shows. The TV will be used to watch 4k UHD HDR content, with a wide color gamut and a high peak brightness. Either via UHD Blu-rays or HDR streaming.
Score components:
7.7
HDR Gaming
What it is HDR Gaming. The TV will be used to play HDR video games using consoles that support it or on current generation gaming PCs. Xbox One S, PS4 Pro, GTX 10 series and AMD RX series graphics cards.
8.2
PC Monitor
What it is PC Monitor. The TV will be used as a PC monitor, from 2-3 feet away, either for productivity purposes or gaming. Sharp text is important, as well as a high resolution.
Score components:
Type : LED
Sub-Type
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.
:
IPS
Resolution : 4k

The LG UK7700 is a good 4k IPS TV for a wide range of usages. It has good gray uniformity so not much dirty screen effect is noticeable when watching sports or playing video games. It also has great reflection handling for a bright room and remains accurate when viewed at an angle. The low input lag and fast response time are also great for gamers, but unfortunately, the dark scene performance is bad as blacks appear gray and blotchy.

Test Results
Design 8.5
Picture Quality 7.2
Motion 7.1
Inputs 9.3
Sound Quality 6.5
Smart Features 8.2
Pros
  • Feels very responsive due to excellent input lag
  • Image remains accurate at an angle
Cons
  • Blacks are gray and blotchy in a dark room
  • Mediocre HDR support

Check Price

8.5

Design

Score components: Subjectively assigned
LG UK7700 Design Picture
Curved : No

The design of the LG UK7700 is good. It has a nice metallic finish. The stand is wide and supports the TV well. It is a relatively thin TV that will not protrude much if wall-mounted but you might have a hard time reaching some of the inputs that are in the back and are facing outwards. The build quality is good and should not cause any issues.

Stand
LG UK7700 Stand Picture

The stand of the LG UK7700 is plastic and very wide. It provides good support to the TV and only little wobbling is noticeable.

The footprint of the 65" model is: 51.8" x 11.3"

Back
LG UK7700 Back Picture
Wall Mount : VESA 300x300

The rear of the TV is plain. Some of the inputs face directly out the rear of the TV and these may be hard to reach if it is wall mounted.

There is no cable management.

Borders
LG UK7700 Borders Picture
Borders : 0.51" (1.3 cm)

The borders of the TV are thin and look nice. Even though they are plastic, they have a silver finish that makes them look more premium.

Thickness
LG UK7700 Thickness Picture
Max Thickness : 2.52" (6.4 cm)

The LG 65UK7700 is not very thick. The widest part of the TV is at the base where the LEDs are hosted. As such, it will not stick out much if wall-mounted.

Temperature
LG UK7700 Temperature picture
Maximum Temperature
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
:
109 °F (43 °C)
Average Temperature
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
:
91 °F (33 °C)

This LG 65UK7700PUD get slightly warm at the bottom edge of the TV where the LEDs are hosted. Although it feels warm to the touch, it should not cause any issues.

7.5 Build Quality
LG UK7700 Build quality picture

The build quality of the LG UK7700 is good but has no visible gaps. It is almost entirely plastic and because of that, it does not look or feel premium.

7.2

Picture Quality

The LG UK7700 LED TV has a decent picture quality. It has low contrast ratio even for an IPS panel, poor local dimming and poor black uniformity so when viewed in a dark room it cannot deliver a great picture as dark scenes look a bit washed-out. In a bright room, as the TV cannot get very bright, it cannot fight glare but thankfully it is great at dealing with reflections. Gray uniformity is good although some dirty screen effect is noticeable in sports. The viewing angle results in a fairly accurate image when viewed at an angle which is okay for a wide room.

6.0 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:
LG UK7700 Checkerboard Picture
Native Contrast
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
:
1028 : 1
Contrast with local dimming
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
:
1028 : 1

The native contrast on this LG UK7700 is ok. Dark scene blacks will look a little grayish in a dark room and local dimming does not help much to improve the situation.

1.5 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
Local Dimming
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.
:
Yes
Backlight
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.
:
Edge

Poor local dimming performance on most scenes. It cannot make the blacks look deeper. Local dimming on the TV is implemented with a limited number of vertical zones since the TV is edge-lit. This has limitations in the effectiveness of local dimming. To compensate for that the algorithm is aggressive and dims the whole screen making the smaller highlights almost disappear. It is however less aggressive than the SJ8500. We recommend that you keep it on medium and if you think that the local dimming is not working to your liking, you can turn it off or simply set it to 'Low'.

7.1 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.
SDR Real Scene Peak Brightness
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
:
252 cd/m²
SDR Peak 2% Window
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
:
278 cd/m²
SDR Peak 10% Window
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
:
307 cd/m²
SDR Peak 25% Window
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
:
299 cd/m²
SDR Peak 50% Window
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
:
294 cd/m²
SDR Peak 100% Window
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
:
295 cd/m²
SDR Sustained 2% Window
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
:
278 cd/m²
SDR Sustained 10% Window
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
:
307 cd/m²
SDR Sustained 25% Window
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
:
298 cd/m²
SDR Sustained 50% Window
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
:
293 cd/m²
SDR Sustained 100% Window
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
:
294 cd/m²
SDR ABL
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
:
0.006

Decent peak brightness, good enough for dim rooms but not enough to allow the TV to overcome glare. The TV sustains similar brightness across a number of window sizes and this is great.

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.
HDR Real Scene Peak Brightness
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
:
278 cd/m²
HDR Peak 2% Window
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
:
454 cd/m²
HDR Peak 10% Window
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
:
452 cd/m²
HDR Peak 25% Window
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
:
327 cd/m²
HDR Peak 50% Window
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
:
288 cd/m²
HDR Peak 100% Window
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
:
288 cd/m²
HDR Sustained 2% Window
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
:
270 cd/m²
HDR Sustained 10% Window
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
:
285 cd/m²
HDR Sustained 25% Window
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
:
287 cd/m²
HDR Sustained 50% Window
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
:
288 cd/m²
HDR Sustained 100% Window
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
:
288 cd/m²
HDR ABL
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
:
0.004

The HDR peak brightness is mediocre. The TV boosts small highlights but the brightness is just not enough to display the creator's intention and take advantage of the HDR increased brightness range. A definite setback compared to last year's UJ7700.

7.5 Gray Uniformity
What it is: Evenness of colors onscreen (not just gray).
When it matters: Solid colors. Sports, panning shots.
Score components:
LG UK7700 50% Uniformity Picture
50% Std. Dev.
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%
:
3.306 %
50% DSE
What it is: 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%
:
0.181 %
LG UK7700 5% Uniformity Picture
5% Std. Dev.
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%
:
0.445 %
5% DSE
What it is: High-frequency variance of uniformity. Dark spots on the screen.
When it matters: Dark scenes.
Good value: < 0.116%
:
0.102 %

The LG UK7700 has a good gray uniformity. In the 50% gray test picture, it is slightly darker on the sides and especially at the corners. The image uniformity at the center is a little better and although one can still notice minor dirty screen effect, it will not bother you much when you use the TV for sports viewing.

In the 5% image the uniformity is very good with no noticeable clouding.

6.2 Viewing Angle
What it is: Color accuracy when viewed from the side.
When it matters: Large living rooms with multiple viewing positions.
Score components:
LG UK7700 Color Shift Picture
Color Shift
What it is: Angle where the colors noticeable shift compared to when viewed from directly in front of the TV. 0 ° means directly facing the TV. Measurements are up to a maximum of 75 °.
When it matters: Large living rooms with multiple viewing positions.
Good value: > 50°
Noticeable difference: 10°
:
23 °
LG UK7700 Brightness Picture
Brightness
What it is: Angle where the brightness drops to 50% of the brightness directly in front of the TV. 0 ° means directly facing the TV. Measurements are up to a maximum of 75 °.
When it matters: Large living rooms with multiple viewing positions.
Good value: > 50°
Noticeable difference: 10°
:
29 °
LG UK7700 Black Level Picture
Black Level
What it is: Angle where the black level drops to 50% of the black level directly in front of the TV. 0 ° means directly facing the TV. Measurements are up to a maximum of 75 °.
When it matters: Large living rooms with multiple viewing positions.
Good value: > 50°
Noticeable difference: 10°
:
75 °

The LG 65UK7700 has a mediocre viewing angle. It is one of the worst IPS panels, but still better than almost all VA TVs. Blacks remain black, as you move away from the central angle but the colors shift and brightness washes out. Last year's UJ7700 had a very similar viewing angle.

5.0 Black Uniformity
What it is: Evenness of blacks.
When it matters: Dark scenes viewed in a dark room.
Score components:
LG UK7700 Native Black Uniformity Picture
Native Std. Dev.
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.
:
2.080 %
LG UK7700 Black Uniformity Picture with Local Dimming
Std. Dev. w/ L.D.
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.
:
4.475 %

The black uniformity of the LG UK7700 is poor. Clouding is scattered all over the image and there are areas where the black looks more like deep gray. When the local dimming is enabled, there is a gray stripe in the center of the screen defined by the horizontal line of the test cross. This not only reveals the local dimming capabilities of the TV, but also is causing even more black uniformity issues. This is a very similar behavior to last year's UJ7700 model.

8.8 Reflections
What it is: How much light is reflected by the TV.
When it matters: Bright rooms.
Score components:
LG UK7700 Reflections Picture LG UK7700 Average Room Off Picture LG UK7700 Bright Room Off Picture
Screen Finish
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.
:
Semi-gloss
Total Reflections
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 %
:
3.0 %
Indirect Reflections
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 %
:
0.5 %

The TV is great at handling reflections. The semi-gloss finish diffuses reflections across the screen, reducing their intensity. This should is great as the TV can be placed both in average lit rooms and in bight ones.

8.1 Pre Calibration
What it is: TV's color accuracy before a full calibration. Only the picture mode, color temperature, and backlight level were changed.
When it matters: All video on an uncalibrated TV. This represents most people's use cases.
Score components:
LG UK7700 Pre Calibration Picture LG UK7700 Pre Gamma Curve Picture LG UK7700 Pre Color Picture
Picture Mode
What it is: The picture mode used to do the 'Pre Calibration' measurements.
:
Expert (Dark Room)
White Balance dE
What it is: Average inaccuracy of shades of gray.
When it matters: Overall color temperature of all video.
Good value: < 3
Noticeable difference: 1
:
2.02
Color dE
What it is: Average inaccuracy of colors.
When it matters: All colors.
Good value: < 3
Noticeable difference: 1
:
3.09
Gamma
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
:
2.09
Color Temperature
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
:
6438 K

The LG UK7700 has very good out of the box color accuracy. When the picture mode is set to Expert (Dark Room), the color dE is almost at 3, so a few people might notice slight imperfections and the white balance dE is well below 3 were people might notice some inaccuracy.

The gamma is at 2.09 making shadows look slightly darker, but again only a few people will notice. The color temperature is almost on target and just slightly off to the warm side.

9.0 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:
LG UK7700 Post Calibration Picture LG UK7700 Post Gamma Curve Picture LG UK7700 Post Color Picture
Picture Mode
What it is: The picture mode used to do the calibration. We usually go for the picture mode that gives us the more control over all the picture quality setting.
:
Expert (Dark Room)
White Balance dE
What it is: Average inaccuracy of shades of gray.
When it matters: Overall color temperature of all videos.
Good value: < 3
Noticeable difference: 1
:
0.15
Color dE
What it is: Average inaccuracy of colors.
When it matters: All colors.
Good value: < 3
Noticeable difference: 1
:
2.55
Gamma
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
:
2.19
Color Temperature
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
:
6513 K

The post calibration color accuracy is excellent, even though it's not easy to achieve. The gamma was flattened to almost match the 2.2 target.

We were not able to completely correct the color dE even though we were able to reduce it. On the other hand, the white balance dE was almost zeroed. Finally, the color temperature stabilized more closely to the 6500K target due to the improved white balance.

You can see our recommended settings here.

8.0 480p Input
What it is: Quality of a 480p input.
When it matters: Standard definition TV, DVDs.
Score components: Subjectively assigned
LG UK7700 480p Picture

Upscaling of low resolution content such as DVDs is good.

8.0 720p Input
What it is: Quality of a 720p input.
When it matters: HD channels, some streaming videos.
Score components: Subjectively assigned
LG UK7700 720p Picture

720p content including cable TV looks good. There are no obvious artifacts or softening of the image.

9.0 1080p Input
What it is: Quality of a 1080p input.
When it matters: Blu-rays, streaming video, video files, video games.
Score components: Subjectively assigned
LG UK7700 1080p Picture

1080p content looks good. The image is crisp and detailed.

10 4k Input
What it is: Quality of a 4k UHD input.
When it matters: Streaming video, UHD Blu-rays, some PCs.
Score components: Subjectively assigned
LG UK7700 4k Picture

Native 4k content is displayed well on the TV.

7.3 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:
Wide Color Gamut
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.
:
No
LG UK7700 Color Gamut DCI-P3 Picture
DCI P3 xy
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%
:
80.78 %
DCI P3 uv
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%
:
86.18 %
LG UK7700 Color Gamut Rec.2020 Picture
Rec 2020 xy
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%
:
58.71 %
Rec 2020 uv
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%
:
64.53 %
LG UK7700 EOTF

The color gamut of this TV is decent, but it fails to pass the 67% mark of the Rec. 2020 uv color space coverage for us to classify it as having a wide color gamut.

In the Cinema HDR picture mode, when the TV is sent our normal 10,000 cd/m² HDR infoframe, its EOTF massively undershoots the target PQ curve, making HDR content appear far dimmer than intended. Fortunately when the TV is sent a 1,000 cd/m² HDR infoframe, its EOTF is much brighter, though still not great. This means that some content will be shown with a fairly accurate brightness, while other content will be shown far dimmer than intended. If you find HDR content too dim, setting Dynamic Tone Mapping to On and setting Dynamic Contrast to High brightens the EOTF somewhat, as shown here with the 10,000 cd/m² HDR infoframe. The Game picture mode unfortunately shows the same EOTF dimming as Cinema.

6.4 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.
LG UK7700 P3 Color Volume ITP Picture
Normalized DCI P3 Coverage ITP
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%
:
74.6 %
10,000 cd/m² DCI P3 Coverage ITP
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.
:
34.6 %
LG UK7700 2020 Color Volume ITP Picture
Normalized Rec 2020 Coverage ITP
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 %
:
53.3 %
10,000 cd/m² Rec 2020 Coverage ITP
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.
:
24.5 %

The color volume on this LG UK7700 is sub-par. This is mainly due to the limited color gamut, that does not allow the TV to display dark shades of colors as it fails to cover either color space well.

8.4 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.
LG UK7700 Gradient Picture
Color Depth
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.
:
10 Bit
Red (Std. Dev.)
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
:
0.085 dE
Green (Std. Dev.)
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
:
0.099 dE
Blue (Std. Dev.)
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
:
0.078 dE
Gray (Std. Dev.)
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
:
0.120 dE

The gradient on this TV is good. There is some small banding in almost all of gray, but only faint banding elsewhere else.

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.
LG UK7700 Image Retention Picture
IR after 0 min recovery
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%
:
0.00 %
IR after 2 min recovery
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%
:
0.00 %
IR after 4 min recovery
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%
:
0.00 %
IR after 6 min recovery
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%
:
0.00 %
IR after 8 min recovery
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%
:
0.00 %
IR after 10 min recovery
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%
:
0.00 %

There is no image retention on this TV and this is good news for those users who might use this TV as a monitor.

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:
Permanent Burn-In Risk
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.
:
No

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
7.1

Motion

The LG UK7700 has okay motion handling. It has a great response time so only a short trail is visible with fast-moving content. The TV flickers the backlight in order to dim the brightness at 120Hz and this can be bothersome to some people. There is no BFI option and the motion interpolation that can be used to reduce stutter can sometimes create artifacts since it does not stop when motion becomes very fast as many higher-end TVs do. Finally, the TV can remove judder only from native content and not when the 24p is coming through a 60i or 60p signal.

8.4 Response Time
What it is: Amount of blur in fast motion.
When it matters: Sports, video games.
Score components:
LG UK7700 Motion Blur Picture LG UK7700 Response Time Chart
80% Response Time
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
:
6.1 ms
100% Response Time
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
:
12.8 ms

The response time is great and results in only a small trail following fast moving objects. It is an improvement over the UJ7700.

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:
LG UK7700 Backlight chart
Flicker-Free
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
:
No
PWM Dimming Frequency
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.
:
120 Hz

As with many 2018 models, the UK7700 uses PWM at 120Hz to dim the backlight. This causes duplications in situations of images with fast moving objects, that you can see in the blur box.

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.
Optional BFI
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
:
No
Min Flicker for 60 fps
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
:
120 Hz
60 Hz for 60 fps
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
:
No
120 Hz for 120 fps
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
:
N/A
Min Flicker for 60 fps in Game Mode
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
:
120 Hz

TheLG 65UK7700 does not have an optional BFI, but because the backlight flickers at 120Hz, it does help motion look more clear.

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.
LG UK7700 Motion Interpolation (30 fps) Picture
Motion Interpolation (30 fps)
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.
:
Yes
Motion Interpolation (60 fps)
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.
:
No

Motion interpolation on the UK7700 is decent. It is nearly perfect during slow-moving shots. When at the De-judder is set to max, the TV does not stop interpolating even during fast motion, so some artifacts are present. If you find that interpolation produces too many artifacts, we recommend you lower the value of De-Judder so that motion interpolation becomes less aggressive and produces less artifacts

7.3 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
Frame Hold Time @ 24 fps
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
:
28.9 ms
Frame Hold Time @ 60 fps
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
:
3.9 ms

The LG UK7700 is decent at displaying content without stutter. In low fps content such as 24p movies, you will notice some stutter as the TV response time is quite fast. If you find that bothersome, you can enable motion interpolation to reduce it.

7.8 24p Judder
What it is: Whether 24p content can play without any judder.
When it matters: Only 24p content (mostly just movies).
Judder-Free 24p
What it is: Judder-free movies over 24p signal.
When it matters: Blu-ray and DVD movies; 24 hz PC signal.
:
Yes
Judder-Free 24p via 60p
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.
:
No
Judder-Free 24p via 60i
What it is: Judder-free movies over 60i signal.
When it matters: Movies from cable/satellite boxes.
:
No
Judder-Free 24p via Native Apps
What it is: Judder-free movies when playing from native apps.
When it matters: Movies from streaming native apps (Netflix, Amazon TV, etc.).
:
Yes

The LG 65UK7700 can play 24p content without judder, but only when played from a native 24p source like a Blu-ray player or from the native apps. To remove judder turn on Real Cinema.

When the 24fps content is coming through 60i or 60p then the TV is not able to remove it.

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.
Native Refresh Rate
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
:
60 Hz
Variable Refresh Rate
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.
:
No
4k VRR Maximum
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
:
N/A
4k VRR Minimum
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
:
N/A
1080p VRR Maximum
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
:
N/A
1080p VRR Minimum
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
:
N/A
VRR Supported Connectors
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.
:
N/A

This TV doesn't support variable refresh rate.

9.3

Inputs

Score components:

The LG UK7700 has a very low input lag making it good for use as a PC monitor. Although the supported resolutions do not include 1440p or 1080p at 120hz, most other common input signals, including HDR, can be properly displayed so that along with the low input lag should please even the most demanding gamers.

9.8 Input Lag
What it is: Delay between input and onscreen reaction.
When it matters: Video games; when TV is used as PC monitor.
1080p @ 60Hz
What it is: Lowest input lag possible on TV with a 1080p @ 60Hz @ 4:2:2 input.
When it matters: Video games and also when TV is used as PC monitor.
Good value: < 40 ms
Noticeable difference: 15 ms
:
12.8 ms
1080p @ 60Hz + HDR
What it is: Lowest input lag possible on the TV when displaying 1080p @ 60Hz @ 4:2:2 @ 10 bit with HDR.
When it matters: HDR video games from a console outputting a 1080p signal.
Good value: < 40 ms
Noticeable difference: 15 ms
:
13.6 ms
1080p @ 60Hz Outside Game Mode
What it is: Lowest input lag possible on the TV when displaying 1080p @ 60Hz @ 4:2:2 in a fully featured picture mode.
When it matters: For playing video games while retaining access to all features of the TV.
Good value: < 40 ms
Noticeable difference: 15 ms
:
136.0 ms
1080p @ 120Hz
What it is: Lowest input lag possible on TV with a 1080p @ 120Hz input.
When it matters: When the TV is used as PC monitor.
Good value: < 40 ms
Noticeable difference: 15 ms
:
N/A
4k @ 60Hz
What it is: Lowest input lag possible on TV when displaying 4k @ 60Hz @ 4:2:0.
When it matters: Video games and also when TV is used as PC monitor.
Good value: < 40 ms
Noticeable difference: 15 ms
:
12.9 ms
4k @ 60Hz + HDR
What it is: Lowest input lag possible when displaying 4k @ 60Hz @ 4:2:0 @ 10 bit signal with HDR.
When it matters: HDR Video games.
Good value: < 40 ms
Noticeable difference: 15 ms
:
14.0 ms
4k @ 60Hz @ 4:4:4
What it is: Lowest input lag possible on the TV when displaying 4k @ 60Hz with proper 4:4:4 chroma subsampling. The test is usually conducted with a 4k @ 60 Hz @ 4:4:4 signal, 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 Monitor
Good value: < 40 ms
Noticeable difference: 15 ms
:
11.6 ms
4k @ 60Hz @ 4:4:4 + 8 bit HDR
What it is: Lowest input lag possible on the TV when displaying 4k @ 60Hz @ 8 bit + HDR with proper 4:4:4 chroma subsampling. The test is usually conducted with a 4k @ 60 Hz @ 4:4:4 @ 8 bit signal, but a 4k @ 60 Hz @ Full RGB @ 8 bit signal may be used if it's required for the TV to show proper 4:4:4 chroma subsampling.
When it matters: PC Monitor with an HDR capable graphic card
Good value: < 40 ms
Noticeable difference: 15 ms
:
N/A
4k @ 60Hz Outside Game Mode
What it is: Lowest input lag possible on the TV when displaying 4k @ 60Hz @ 4:2:0 in a fully featured picture mode.
When it matters: For playing video games while retaining access to all features of the TV.
Good value: < 40 ms
Noticeable difference: 15 ms
:
134.6 ms
4k With Interpolation
What it is: Lowest input lag for 4k @ 60 Hz @ 4:2:0 content when the motion interpolation feature is turned on.
When it matters: When you want to play video games with the Soap Opera Effect enabled.
Good value: < 40 ms
Noticeable difference: 15 ms
:
134.6 ms
4k @ 120 Hz
What it is: Lowest input lag possible on TV with a 4k @ 120Hz input.
When it matters: When the TV is used as PC monitor.
Good value: < 40 ms
Noticeable difference: 15 ms
:
N/A
4k with Variable Refresh Rate
What it is: Lowest input lag possible on the TV when its Variable Refresh Rate feature is enabled and it is sent a 4k signal.
When it matters: When gaming with a device which supports variable refresh rates, such as the Xbox One X or a PC.
:
N/A
1080p with Variable Refresh Rate
What it is: Lowest input lag possible on the TV when its Variable Refresh Rate feature is enabled and it is sent a 1080p signal.
When it matters: When gaming with a device which supports variable refresh rates, such as the Xbox One X or a PC.
:
N/A

Remarkable low input lag. When Game mode is activated, the TV bypasses all processing. This is among the best input lag we have tested up to date.

Chroma 4:4:4 is only shown properly in the PC input mode and unlike many other LG TVs, the Game picture mode is still required when in the PC input mode in order to have the lowest input lag.

6.7 Supported Resolutions
What it is: Different resolutions supported by TV.
When it matters: PC monitor usage.
Score components:
  • 17% 1080p @ 60Hz @ 4:4:4
  • 17% 1080p @ 120Hz
  • 17% 1440p @ 60Hz
  • 17% 4k @ 30Hz @ 4:4:4
  • 16% 4k @ 60Hz
  • 16% 4k @ 60Hz @ 4:4:4
1080p @ 60Hz @ 4:4:4
What it is: Crisp text on 1080p @ 60 hz signal.
When it matters: PC productivity and 60 fps gaming.
:
Yes
1080p @ 120Hz
What it is: 120 fps 1080p signal supported.
When it matters: PC gaming.
:
No
1440p @ 60Hz
What it is: 60 fps 1440p signal supported.
When it matters: PC productivity and gaming.
:
No
4k @ 30Hz @ 4:4:4
What it is: Crisp text on 4k @ 30 hz signal.
When it matters: PC productivity and gaming.
:
Yes
4k @ 60Hz
What it is: 60 fps 4k signal supported.
When it matters: PC productivity and gaming.
:
Yes
4k @ 60Hz @ 4:4:4
What it is: Crisp text on 4k @ 60 hz signal.
When it matters: Productivity and 60 fps gaming in 4k.
:
Yes
4k @ 120Hz
What it is: 4k 120Hz signal supported
When it matters: PC gaming
:
No

The most common resolutions are supported on the LG UK7700. However, 1440p is not supported, although 1080p @ 120Hz is accepted by the TV, it is not displayed properly as this is a 60Hz panel and drops every second frame.

4:4:4 Chroma is only properly displayed when the input icon is set to PC mode and the signal is RGB as YCbCr will not correctly display.

When in PC Mode with HDR enabled, the TV does not properly support 4:4:4 color and colors appear washed out.

In PC Mode, Sharpness at 0 means no added sharpness.

4k @ 60Hz @ 4:4:4 or 4:2:2 is only supported when HDMI Ultra HD Deep Color is enabled

Side Inputs
Rear Inputs
Total Inputs
HDMI : 4
USB : 2
Digital Optical Audio Out : 1
Analog Audio Out 3.5mm : 0
Analog Audio Out RCA : 0
Component In : 1 (shared)
Composite In : 1 (shared)
Tuner (Cable/Ant) : 1
Ethernet : 1
DisplayPort : 0
IR In : 0
SD/SDHC : 0
Inputs Specifications
HDR10
What it is: Standard HDR format.
When it matters: Most common format. All UHD Blu-ray discs are required to have it.
:
Yes
Dolby Vision
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.
:
No
HLG
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.
:
Yes
3D
What it is: Optional 3D video capability on TV.
When it matters: 3D movies & videos.
:
No
5.1 Passthrough ARC Dolby Digital
What it is: TV can receive and pass Dolby Digital 5.1 signal to receiver via HDMI ARC.
When it matters: 5.1 audio on DVDs and Blu-rays.
:
Yes
5.1 Passthrough ARC DTS
What it is: TV can receive and pass DTS 5.1 signal to receiver via HDMI ARC.
When it matters: 5.1 audio on DVDs and Blu-rays.
:
Yes
5.1 Passthrough Optical Dolby Digital
What it is: TV can receive and pass Dolby Digital signal to receiver via digital optical.
When it matters: 5.1 audio on DVDs and Blu-rays.
:
Yes
5.1 Passthrough Optical DTS
What it is: TV can receive and pass DTS signal to receiver via digital optical.
When it matters: 5.1 audio on DVDs and Blu-rays.
:
Yes
HDMI 2.0 Full Bandwith
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.
:
Yes (HDMI 1,2,3,4)
HDMI 2.1 Full Bandwidth
What it is: HDMI 2.1 is the latest update to the HDMI standard and supports a range of higher video resolutions and refresh rates including 8K60 and 4K120, and resolutions up to 10K. Dynamic HDR formats are also supported, and bandwidth capability is increased up to 48Gbps.
:
No
ARC
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.
:
Yes (HDMI 2)
USB 3.0
What it is: USB 3.0 is the latest USB standard which can transfer data up to 5 Gbit/s, and is easily recognizable due to its blue color-coding of the connector.
:
No
HDCP 2.2 : Yes (HDMI 1,2,3,4)
CEC : Yes
MHL : No
Variable Analog Audio Out : No
Wi-Fi Support : Yes (2.4 GHz, 5 GHz)
6.5

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:

The sound of the LG UK770 is average. This TV has a decent amount of punch and body to its bass, but doesn't produce any thump or rumble as it lacks sub-bass. It is also capable of producing clear and intelligible dialogue, but gets only decently loud and may not be loud-enough for very large and noisy environments. For a better sound, soundbars or dedicated speakers 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.
LG UK7700 Frequency Response
Low-Frequency Extension
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
:
80.00 Hz
Std. Dev. @ 70
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
:
3.42 dB
Std. Dev. @ 80
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
:
4.59 dB
Std. Dev. @ Max
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
:
6.30 dB
Max
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
:
86.3 dB SPL
Dynamic Range Compression
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
:
4.95 dB

The frequency response of the UK700 is average. LFE (low-frequency extension) is at 80Hz, which is decent. This means that this TV will have some punch to its bass, but won't be able to produce sub-bass, which is responsible for thump and rumble The response above the LFE point is quite good, which is important for producing intelligible dialogue. However, this TV gets only decently loud and produces some pumping and compression artifacts under heavy loads. Also, its room correction system (Magic Sound Tuning) wasn't able to remove the modes of our test room around 200Hz.

6.8 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:
LG UK7700 Total Harmonic Distortion
Weighted THD @ 80
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
:
0.528
Weighted THD @ Max
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
:
0.755
IMD @ 80
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
:
3.10 %
IMD @ Max
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
:
4.87 %

The distortion performance of the UK7700 is about average. The overall amount of THD produced is not very high at 80dB SPL, and there is not jump in THD under maximum volume either. However, this TV doesn't get very loud.

8.2

Smart Features

Score components:
  • 42% Interface
  • 2% Ad-Free
  • 37% Apps and Features
  • 16% Remote
  • 3% Remote App
LG UK7700 Smart TV Picture
Smart OS : WebOS
Version : 4.0

The LG UK7700 runs the latest version of WebOS, LG's smart operating system. It has a decent number of pre-installed apps, you can always visit the LG content store where you can choose from thousands of third-party apps. The LG content store is not as good as the Google Play Store found on Samsung or Sony TVs. The remote is the one that comes with all high-end 2018 LG models we have tested and is well built. The Smart features design works well but is not as sleek as the ones found on high-end Samsung or Sony TVs. The  Smart features come equipped with new voice control functions that are very powerful. They function properly and allow it to interface with a variety of other devices like Amazon Alexa or Google Home.

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
Ease of Use
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.
:
Easy
Smoothness
What it is: How smooth the interface is to navigate, affected by lag and frame drops.
When it matters: When using the smart features.
:
Average
Time Taken to Select YouTube
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.
:
2 s
Time Taken to Change Backlight
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.
:
12 s
Advanced Options
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.
:
Many

The webOS interface is similar to other 2018 LG models like the SK9500. It includes the improved search functionality and the menu is very responsive.

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 components:
Ads
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.
:
Yes
Opt-out
What it is: Whether you can opt out of the ad services or not. A TV only passes this test if it allows you to remove them completely, not only disable the personalized advertising.
When it matters: When using the smart features.
:
No
Suggested Content in Home
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.
:
Yes
Opt-out of Suggested Content
What it is: Whether the suggested content feed in the home menu can be removed or hidden
:
No

We did not see any ads during testing. However, we have found ads on other 2018 LG TVs as shown here, so we assume all 2018 LG TVs have ads.

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
LG UK7700 Apps Picture
App Selection
What it is: The number and variety of apps available to download for the smart platform.
When it matters: When downloading new apps.
:
Many
App Smoothness
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.
:
Average
Cast Capable
What it is: Whether apps on a phone or tablet can cast content to the TV.
:
Yes
USB Drive Playback
What it is: Whether the TV can play content from a drive connected to one of the TV's USB ports.
:
Yes
USB Drive HDR Playback
What it is: Whether HDR files played from a USB drive can be displayed properly.
:
Yes
HDR in Netflix
What it is: Whether HDR content on Netflix can be played back in HDR using the native Netflix app.
:
Yes
HDR in Amazon Video
What it is: Whether HDR content on Amazon Video can be played in HDR using the native Amazon Video app.
:
Yes
HDR in YouTube
What it is: Whether HDR content on YouTube can be played in HDR using the native YouTube app.
:
Yes

The TV comes preloaded with many popular apps such as Netflix, YouTube and Amazon Video. In the LG Content Store, you can find many more apps and content

9.0 Remote
What it is: The usability and features of the TV's physical remote.
Score components: Subjectively assigned
LG UK7700 Remote Picture
Size
What it is: How big the remote is
:
Large
Voice Control
What it is: The capabilities of the TV's voice control feature
:
Many Features
CEC Menu Control
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.
:
Yes
Other Smart Features
What it is: Whether the remote has any other smart features, such as a pointer, universal remote support for non HDMI CEC devices, etc.
:
Yes

The remote is identical to the one found on all high-end LG TVs like the C8 and SK9500. It gives you quick access to the most common TV functions and can also be used as a pointer to navigate the menus and even has a scroll wheel integrated into the d-pad.

The remote also works for voice commands and the TV can perform basic commands such as change inputs, open YouTube, or search Netflix, but it cannot change the settings i.e 'Change backlight to 5' won't work.

You can also set a sleep timer and perform more advanced searches like checking the weather or answering basic searches. Some searches are answered by LG's proprietary ThinQ AI; others were answered by Google Assistant, similar to Sony TVs like the X900F.

7.0 Remote App
What it is: The features of the official phone and tablet app for the TV.
Score components: Subjectively assigned
Acts as the Remote
What it is: Whether the remote app can emulate all the buttons of the physical remote.
:
Yes
Directly Launches Apps and Inputs
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.
:
Both
Inputs Text in YouTube
What it is: Whether the remote app can enter text for YouTube searches.
:
No
Inputs Text in Netflix
What it is: Whether the remote app can enter text for Netflix searches.
:
No
Streams Device Files
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.
:
Yes
Controls TV Settings
What it is: Whether the app can change all or some of the settings on the TV, such as the backlight.
:
No
Voice Control
What it is: Whether the remote can send voice commands to the TV.
:
Limited Support

The remote app can perform voice searches but does not understand voice commands like the remote.

TV Controls
LG UK7700 Controls Picture

There is just one button under the TV that can cycle through a pop-up menu: Power, volume up and down, inputs, channel up and down.

In The Box
LG UK7700 In The Box Picture

  • Manual
  • Batteries
  • Remote
  • Cable management strap
Not Shown:
  • 60.5" power cable

Misc
Power Consumption : 62 W
Power Consumption (Max) : 121 W
Firmware : 03.00.70

Differences between Sizes and Variants

We tested the 65" (65UK7700PUD). For the most part, we expect our review to be valid for the  49" (49UK7700) and the 55" (55UK7700).

 

Size US Canada (and US warehouse)
49" 49UK7700PUD 49UK7700AUB
55" 55UK7700PUD 55UK7700AUB
65" 65UK7700PUD 65UK7700AUB

If someone comes across a different type of panel or if their LG UK7700 doesn't correspond to our review, let us know and we will update the review.

Compared to other TVs

LG UK7700 Group Shot Picture
Top left: Vizio E Series 2017 (E65-E1). Bottom left: TCL R617 (55R617). Middle: LG UK7700 (65UK7700). Top right: Sony X900F (XBR55X900F). Bottom right: Samsung NU7100 (UN55MU7100).  Unlike our other photographs, this picture wasn't taken under a controlled environment, so do not draw conclusions from it.

The LG UK7700 is a TV that is ok for most usages without standing out for a specific characteristic.

Samsung NU7100
40" 43" 50" 55" 58" 65" 75"

The LG UK7700 is a better TV than the Samsung NU7100. The LG has better reflection handling, better response time, and wider viewing angles due to its IPS panel, so watching sports and TV shows on the LG is a very good experience. On the other hand, the Samsung NU7100 will offer a better experience in HDR movies due to the much better contrast ratio that can produce deep blacks in a dark room.

LG SK8000
49" 55" 65"

The LG SK8000 and the LG UK7700 have very similar performance. The LG SK8000 can remove 24p judder from movies better than the UK7700 can and can interpolate motion to higher fps than the UK7000. Also, the black frame insertion feature of the SK800 works better than the UK7700 and can make the image crisper. The LG UK7700, on the other hand, has lower input lag both in SDR and HDR and this great for gaming.

TCL R617
55" 65"

The TCL R617 is a better TV than the LG UK7700. The TCL617 has a VA-panel and can display deeper blacks and brighter highlights due to the better contrast ratio and better brightness, so you will enjoy watching movies and HDR movies more on the TCL. On the contrary, the LG UK7700 has an IPS panel and is better for watching TV shows and sports, as it can better handle the reflections of a room with many light sources, has better gray uniformity and wide viewing angles to accommodate for wide seating arrangements.

Sony X750F
55" 65"

The LG UK7700 is better than the Sony X750F. The LG supports local dimming to improve quality of blacks and also has lower input lag, which is great if you play video games or use it as a PC monitor. The LG can handle reflections better and you can easily place it in a bright room like a kitchen without issues. On the other hand, the Sony X750F has better black frame insertion that can clear the image blur better.

Vizio E Series 2018
43" 50" 55" 65" 70" 75"

The two TVs have a different panel type. The LG UK7700 has better viewing angles, better reflection handling and is more appropriate for watching sports or TV shows in a room with many light sources and wide seating arrangement. The Vizio E Series 2018, on the other hand, is a better choice for a dark room where you will be sitting right in front. It has better contrast ratio, better black uniformity and will provide a better movie experience in a dark room and better HDR performance.

Sony X850E
65" 75"

The Sony X850E is a better TV than the LG UK7700 for mixed usage. Watching movies and HDR movies on the Sony is much better due to its better contrast and black uniformity which will make movies look better in a dark environment and also due to its high brightness. The LG UK7700 is better for watching TV shows in a brighter room because of its better viewing angles and better reflection handling. Overall, the Sony is a better TV.

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Conclusion
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7.6Mixed Usage
What it is General purpose. The TV will be used for a variety of content and usages. Movies at night, TV shows during the day, video games from time to time, etc.
Score components:
The LG UK7700 is a very good TV for mixed usage as it can handle reflections well, making it suitable for bright rooms even though the TV does not get too bright. Motion handling is decent and the TV can perform very well with video games and as a PC monitor due to its excellent low input lag.
6.4Movies
What it is Movies in the dark. The TV will be used for watching movies in a controlled environment, directly in front, in a home theater way. Mostly only high quality content, like Blu-rays, UHD Blu-rays, streaming and a little bit of HDR.
Score components:
This LG UK7700 has a mediocre performance when watching movies. In dark environments, the not so good contrast ratio does not make blacks look deep and the local dimming cannot help. The TV can display Blu-ray at 1080p and native 4k content well but its black uniformity might be an issue for some movie enthusiasts.
8.1TV Shows
What it is TV Shows in a bright living room. The TV will be used in to watch TV shows, in a bright room during the day, from multiple viewing positions at different angles. The content watched has an average quality: cable, streaming, SD channels, etc.
Score components:
The performance of the LG UK7700 when watching TV shows is great. It has excellent reflection handling, decent SDR Peak Brightness, and ok viewing angles. When upscaling from the cable 720p input the UK7700 does a good job and the motion interpolation option can add some soap opera effect for those who like it.
7.8Sports
What it is Sports in a living room. The TV will be used to watch sports during the day, like football or hockey. Usually watched with a group, so from multiple viewing position.
The LG UK7700 is very good for watching sports. The good reflection handling and very good response time, along with decent SDR Peak Brightness, make it suitable for a relatively bright room and fast action content. The viewing angles are ok for a wide room and some sports fan might notice a little dirty screen effect on panning shots.
8.3Video Games
What it is Video games. The TV will be used to play video games, directly in front, in a controlled light environment. Usually fast games, like online FPS, where motion blur and input lag is important.
The LG 65UK7700 is very good for video game playing. It has an outstanding low input lag and great response time that will keep most gamers happy. It can accept most common input signals and its motion handling is decent. Make sure you enable the Game picture mode to enjoy the low input lag.
6.3HDR Movies
What it is HDR Movies and TV shows. The TV will be used to watch 4k UHD HDR content, with a wide color gamut and a high peak brightness. Either via UHD Blu-rays or HDR streaming.
Score components:
Watching HDR movies on this TV is mediocre. This is mainly due to sub-par contrast and the bad local dimming, which do not allow the TV to display deep blacks in dark environments. Although the 4k content is displayed well the HDR brightness is not enough to reveal the content as intended by the content creator.
7.7HDR Gaming
What it is HDR Gaming. The TV will be used to play HDR video games using consoles that support it or on current generation gaming PCs. Xbox One S, PS4 Pro, GTX 10 series and AMD RX series graphics cards.
This TV is good for playing HDR games It has very low input lag at 4k @ 60Hz + HDR, and because of its fast response time it a great choice for those who want to use it to play HDR games, although the not so good contrast will make blacks appear a little washed out and the colors will not be so vivid.
8.2PC Monitor
What it is PC Monitor. The TV will be used as a PC monitor, from 2-3 feet away, either for productivity purposes or gaming. Sharp text is important, as well as a high resolution.
Score components:
This a great TV for use as a PC monitor. The very low input lag and the good response time will make the PC usage experience a good one. Also if you wish to use this TV as a PC monitor you do not have to worry about the permanent burn-in risk or temporary image retention.

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