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    Table of Contents
  1. Intro
  2. Design
    1. Stand
    2. Back
    3. Borders
    4. Thickness
    5. Temperature
    6. Build Quality
  3. Picture Quality
    1. Contrast
    2. Local Dimming
    3. SDR Peak Brightness
    4. HDR Peak Brightness
    5. Gray Uniformity
    6. Viewing Angle
    7. Black Uniformity
    8. Gradient
    9. Pre Calibration
    10. Post Calibration
    11. 480p Input
    12. 720p Input
    13. 1080p Input
    14. 4k Input
    15. Color Gamut
    16. Color Volume
    17. Image Retention
    18. Reflections
    19. 3D
    20. Pixels
  4. Motion
    1. Motion Blur
    2. Image Flicker
    3. 24p Playback
    4. Motion Interpolation
  5. Inputs
    1. Input Lag
    2. Supported Resolutions
    3. Side Inputs
    4. Rear Inputs
    5. Total Inputs
    6. Inputs Specifications
  6. Sound Quality
    1. Frequency Response
    2. Total Harmonic Distortion
  7. Smart Features
    1. Apps
    2. Ads
    3. TV Controls
    4. Remote
    5. In The Box
    6. Misc
  8. Sizes and Variants
  9. Compared
  10. Conclusion
  11. Q&A
Reviewed on May 26, 2017 , Ian Cumming, Mehdi Azzabi, Eric Bousquet

LG UJ7700
TV REVIEW

Usage Ratings
7.4Mixed Usage
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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:
6.7Movies
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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:
7.4TV Shows
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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:
7.5Sports
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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.
Score components:
8.1Video Games
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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.
Score components:
7.8HDR Movies
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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:
8.0HDR Gaming
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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.
7.4PC Monitor
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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
Resolution : "4k"
Refresh Rate : 60 Hz

The LG UJ7700 is a good, versatile "4k" UHD TV. It has good viewing angles, and its performance will please both gamers and sports watchers. It isn't as good for movies in a dark room or TV shows though, since it doesn't get that bright in SDR and its contrast and uniformity could be a lot better. Its excellent smart features make it quite versatile. It uses an alternate pixel structure (RGBW) which results in less accurate display of fine details.

Test Results
Design 7.5
Picture Quality 7.2
Motion 7.5
Inputs 9.3
Sound Quality 6.4
Smart Features 9.0
Pros
  • Decently bright
  • Low input lag which is great for gaming
  • Great smart features
Cons
  • Picture quality in a dark room is below average
  • Local dimming feature isn't great

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7.5

Design

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Score components: Subjectively assigned
LG UJ7700 Design Picture
Curved : No

The design of the UJ7700 is quite basic, but there are a couple of nice touches. The TV looks quite sleek, with accented edges and a basic stand but the design is definitely a step down from the 2016 UH7700. The stand is almost as wide as the TV, which may be an issue for those with narrow tables. The TV has an average thickness but unfortunately, some inputs out the back may be difficult to access if placed close to a wall.  

Stand
LG UJ7700 Stand Picture

The stand is almost as wide as the TV itself, which may be an issue for those with smaller tables. It looks quite good though and does support the TV well.

Footprint of the 49" TV stand: 9.3" x 42.2"

Back
LG UJ7700 Back Picture
Wall Mount : Vesa 300x300

The rear of the TV is similar to the 6 series LG TVs from 2016 such as the UH6500. It is reflective and attracts fingerprints. Many of the inputs face out the rear of the TV which may make them difficult to access if placed close to a wall.

Borders
LG UJ7700 Borders Picture
Borders : 0.55" (1.4 cm)

The borders of the TV are quite thin and look good. The plastic has a silver accent which sets them apart a bit from low end TVs.

Thickness
LG UJ7700 Thickness Picture
Max Thickness : 2.56" (6.5 cm)

The widest part of the TV is at the base, but overall it isn't too thick so won't stick out much if wall-mounted.

Temperature
LG UJ7700 Temperature picture
Maximum Temperature
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What it is: The peak temperature found on the TV.
Good value: <35°C
Noticeable difference: <5°C
:
37 °C
Average Temperature
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What it is: The Average temperature measured on the TV
When it matters: If the TV is placed in an enclosed space.
Good value: 30
Noticeable difference: 5
:
33 °C

The TV is warmest at the bottom of the screen, where the backlight LEDs are located. Fortunately, the largest cooling vents are along the bottom edge, so the TV only gets slightly warm to the touch.

6.5 Build Quality
LG UJ7700 Build quality picture

The build quality of the UJ7700 is okay. The TV is almost completely plastic and doesn't look or feel as premium as the UH7700 from 2016.

7.2

Picture Quality

The LG UJ7700 LED TV has an ordinary picture quality. The below average contrast ratio and the ordinary black uniformity mean that the UJ7700 won't be the best performer when set in a dark room. Blacks aren't very deep and dark scenes look a bit washed-out. When set in a bright room, the low contrast ratio isn't as noticeable, but the low peak brightness in SDR and its capacity to deal with reflections won't be enough to effectively fight direct glare. The gray uniformity could be better and dirty screen effect is visible when watching sports like hockey and football. The viewing angle is passable and would be suitable for people with a wide seating area. When it comes to HDR, the UJ7700 has a wide color gamut and good HDR peak brightness, but since the local dimming is very bad, it cannot really compete with other higher end TVs.

6.2 Contrast
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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 UJ7700 Checkerboard Picture
Native Contrast
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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
:
1158 : 1
Contrast with local dimming
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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
:
1161 : 1

The native contrast ratio of the LG UJ7700 is below average for an LED TV but is comparable to other IPS TVs. When set in a dark room, the low contrast ratio makes blacks look more grayish than really black, rendering dark scenes a bill dull and washed-out. This is a bit less problematic when the TV is set in a bright room since the ambient light can make the low contrast ratio a bit less noticeable.

With local dimming turned on, the contrast ratio stays about the same and this is due to the very poor performance of this local dimming feature.

2.0 Local Dimming
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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
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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
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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

The local dimming on the LG UJ7700 is bad. The number of zones is low and each zone spans over a large vertical area. The reaction time is not the fastest we have seen and when turned on in SDR, the local dimming dims the whole screen. Looking at our test video, you can see that the smaller highlights get dimmed a lot. Looking at other aspects that are affected by the local dimming, like the contrast ratio and the black uniformity, it is clear that the implementation of this local dimming is not the best and this is common to most other edge-lit LED TVs. For this TV in particular, the local dimming might cause more harm than good if activated, so it could be a better idea to turn if off or simply set it to 'Low' if you really want to use this feature.

6.8 SDR Peak Brightness
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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
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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 regular 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 SDR signal. Scene: here.
When it matters: When watching movies or watching TV show in SDR.
:
239 cd/m2
SDR Peak 2% Window
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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; especially for SDR content.
Good value: > 400 cd/m2
Noticeable difference: 100 cd/m2
:
79 cd/m2
SDR Peak 10% Window
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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; especially for SDR content.
Good value: > 400 cd/m2
Noticeable difference: 100 cd/m2
:
158 cd/m2
SDR Peak 25% Window
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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: Bright rooms; bright objects in SDR video.
Good value: > 400 cd/m2
Noticeable difference: 100 cd/m2
:
232 cd/m2
SDR Peak 50% Window
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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: Bright rooms.
Good value: > 400 cd/m2
Noticeable difference: 100 cd/m2
:
266 cd/m2
SDR Peak 100% Window
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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: Bright rooms
Good value: > 400 cd/m2
Noticeable difference: 100 cd/m2
:
275 cd/m2
SDR Sustained 2% Window
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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 throughout a scene; especially for SDR content.
Good value: > 400 cd/m2
Noticeable difference: 100 cd/m2
:
79 cd/m2
SDR Sustained 10% Window
Show Help
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 throughout a scene; especially for HDR content.
Good value: > 400 cd/m2
Noticeable difference: 100 cd/m2
:
158 cd/m2
SDR Sustained 25% Window
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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: Bright rooms; bright objects in SDR video.
Good value: > 400 cd/m2
Noticeable difference: 100 cd/m2
:
231 cd/m2
SDR Sustained 50% Window
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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: Bright rooms.
Good value: > 400 cd/m2
Noticeable difference: 100 cd/m2
:
265 cd/m2
SDR Sustained 100% Window
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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: Bright rooms.
Good value: > 400 cd/m2
Noticeable difference: 100 cd/m2
:
274 cd/m2

Okay SDR peak brightness. The TV's local dimming dims highlights in dark scenes in SDR content, as opposed to making them brighter like it does for HDR content, so we recommend disabling it. The 'Expert (Dark Room)' picture mode, while providing the most options to adjust the picture, is unfortunately quite dim. The 'Expert (Bright Room)' and 'Cinema' picture modes are also dim, but fortunately the 'Standard' and "Game" picture modes are much brighter. A plot of brightness over time in the 'Expert (Dark Room)' and 'Standard' picture modes is shown here.

If the TV appears too dim in a bright room. We recommend using the 'Standard' or 'Game' picture modes, disabling local dimming, using a 'W30' color temperature and using as many of our recommended settings as applicable.

8.1 HDR Peak Brightness
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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
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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.
:
446 cd/m2
HDR Peak 2% Window
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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: > 1000 cd/m2
Noticeable difference: 100 cd/m2
:
647 cd/m2
HDR Peak 10% Window
Show Help
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: > 1000 cd/m2
Noticeable difference: 100 cd/m2
:
640 cd/m2
HDR Peak 25% Window
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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: > 1000 cd/m2
Noticeable difference: 100 cd/m2
:
528 cd/m2
HDR Peak 50% Window
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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: > 1000 cd/m2
Noticeable difference: 100 cd/m2
:
433 cd/m2
HDR Peak 100% Window
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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: > 1000 cd/m2
Noticeable difference: 100 cd/m2
:
426 cd/m2
HDR Sustained 2% Window
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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: > 1000 cd/m2
Noticeable difference: 100 cd/m2
:
638 cd/m2
HDR Sustained 10% Window
Show Help
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: > 1000 cd/m2
Noticeable difference: 100 cd/m2
:
634 cd/m2
HDR Sustained 25% Window
Show Help
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: > 1000 cd/m2
Noticeable difference: 100 cd/m2
:
526 cd/m2
HDR Sustained 50% Window
Show Help
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: > 1000 cd/m2
Noticeable difference: 100 cd/m2
:
431 cd/m2
HDR Sustained 100% Window
Show Help
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: > 1000 cd/m2
Noticeable difference: 100 cd/m2
:
424 cd/m2

Great HDR peak brightness, though not as bright as most high end TVs. The TV's worst case brightness is still fairly bright, and local dimming helps the TV make small highlights in dark scenes even brighter, as shown by our smaller window tests. The 2% white window is the brightest test, while on last year's UH7700 it was the dimmest, indicating very different local dimming behavior. However, we recommend disabling local dimming as on this TV it adds a lot of visible blooming. A plot of brightness over time is shown here.

7.2 Gray Uniformity
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What it is: Evenness of colors onscreen (not just gray).
When it matters: Solid colors. Sports, panning shots.
Score components:
LG UJ7700 50% Uniformity Picture
50% Std. Dev.
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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%
:
3.26 %
50% DSE
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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%
:
0.21 %
LG UJ7700 5% Uniformity Picture
5% Std. Dev.
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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%
:
0.434 %
5% DSE
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What it is: High-frequency variance of uniformity. Dark spots on the screen.
When it matters: Dark scenes.
Good value: < 0.116%
:
0.093 %

The gray uniformity could be better on the LG UJ7700. Looking at the 50% gray uniformity test picture, large darker bands are visible and both sides are also darker. Watching our sports test clip during the testing, dirty screen effect is visible, and this in various sports like hockey and soccer.

Looking at the 5% gray test picture, not much stands out and the overall picture looks pretty even, which is a good thing.

6.3 Viewing Angle
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What it is: Color accuracy when viewed from the side.
When it matters: Large living rooms with multiple viewing positions.
Score components:
LCD Type
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What it is: Type of LCD technology used by the TV.
When it matters: Different technologies have different viewing angle properties.
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.
:
IPS
LG UJ7700 Color Shift Picture
Color Shift
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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°
:
24 °
LG UJ7700 Brightness Picture
Brightness
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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°
:
31 °
LG UJ7700 Black Level Picture
Black Level
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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 °

Mediocre viewing angle. Better than almost all VA TVs but not as good as most IPS TVs. The black level barely changes at an angle, but colors shift and brightness decreases rapidly when the TV is viewed at an angle. Last year's UH7700 and UH8500 had a very similar viewing angle.

7.4 Black Uniformity
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What it is: Evenness of blacks.
When it matters: Dark scenes viewed in a dark room.
Score components:
LG UJ7700 Native Black Uniformity Picture
Native Std. Dev.
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What it is: Average of the squared difference of the blacks.
When it matters: Dark scenes viewed in a dark room.
Good value: < 2%
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.
:
1.88 %
LG UJ7700 Black Uniformity Picture with Local Dimming
Std. Dev. w/ L.D.
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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: < 2%
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.
:
5.808 %

The native black uniformity could be better on the UJ7700. Overall, the screen is pretty even with only a bit more clouding in the upper right region and also the top edge is a bit brighter. Note here that the test picture does look more grayish than really black, but the black uniformity test is not about the level of black but more the evenness of the black.

When the local dimming is turned on, the black uniformity is very bad, as you can see on our test picture. There is a lot of blooming near the white cross of our test image, making the center of the screen way more bright than both sides. This is why the standard deviation number is so big when compared to the native standard deviation. Since the local dimming is so bad on this TV when set to max, it will cause more issues than if it was completely turned off. In a case like this, it is often recommended to completely turn off this feature.

9.5 Gradient
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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: Subjectively assigned
LG UJ7700 Gradient Picture
Color Depth
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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

The LG UJ7700 can display our gradient test image very smoothly and without any banding normally seen on 8-bit TVs. Overall, only very little imperfections can be seen in the darker greens, which is very good and banding should not be too problematic on this LG TV.

7.8 Pre Calibration
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What it is: TV's color accuracy before a full calibration. Only the picture mode and backlight level were changed.
When it matters: All video on an uncalibrated TV. This represents most people's use cases.
Score components:
LG UJ7700 Pre Calibration Picture LG UJ7700 Pre Gamma Curve Picture LG UJ7700 Pre Color Picture
White Balance dE
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What it is: Average inaccuracy of shades of gray.
When it matters: Overall color temperature of all video.
Good value: < 3
Noticeable difference: 1
:
4.39
Color dE
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What it is: Average inaccuracy of colors.
When it matters: All colors.
Good value: < 3
Noticeable difference: 1
:
3.46
Gamma
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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
:
2.12

Out of the box, the UJ7700 is not that accurate and home-enthusiasts may notice some inaccuracies. The white balance is on the warm side and the dE is pretty high plus the gamma is not tracking our 2.2 target very well. When it comes to the color accuracy, the accuracy is average at best with the cyan colors being the worst of the lot.

9.5 Post Calibration
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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 UJ7700 Post Calibration Picture LG UJ7700 Post Gamma Curve Picture LG UJ7700 Post Color Picture
White Balance dE
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What it is: Average inaccuracy of shades of gray.
When it matters: Overall color temperature of all videos.
Good value: < 3
Noticeable difference: 1
:
0.26
Color dE
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What it is: Average inaccuracy of colors.
When it matters: All colors.
Good value: < 3
Noticeable difference: 1
:
1.46
Gamma
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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

The calibration process on the LG UJ7700 was a bit longer than usual, especially while doing the white balance and even with the 20 point correction, the lower end could not be corrected completely. The gamma was flattened to track more closely to our 2.2 target, but with a small imperfection that matches the low end of the white balance.

The color space management on the UJ7700 was pretty good and the total color dE was halved, which is very good. Most of the colors, including the cyan, were tracking more closely to their targets after calibration. In the end, the calibration was worth the effort, since out of the box, it was pretty inaccurate.

You can see our recommended settings here.

8.0 480p Input
Show Help
What it is: Quality of a 480p input.
When it matters: Standard definition TV, DVDs.
Score components: Subjectively assigned
LG UJ7700 480p Picture

Low quality content such as DVDs are upscaled well. Details are preserved and the image isn't too soft. Some halo artifacts can be seen around straight lines.

8.0 720p Input
Show Help
What it is: Quality of a 720p input.
When it matters: HD channels, some streaming videos.
Score components: Subjectively assigned
LG UJ7700 720p Picture

720p content such as cable is upscaled well. The image remains clear.

9.0 1080p Input
Show Help
What it is: Quality of a 1080p input.
When it matters: Blu-rays, streaming video, video files, video games.
Score components: Subjectively assigned
LG UJ7700 1080p Picture

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

8.0 4k Input
Show Help
What it is: Quality of a 4k UHD input.
When it matters: Streaming video, UHD Blu-rays, some PCs.
Score components: Subjectively assigned
LG UJ7700 4k Picture

Unlike the UH7700 from 2016, the UJ7700 has a less accurate sub-pixel structure (RGBW). This results in slightly less clear text when viewed from up-close. It is not an issue from farther away, but can be seen in the close up pixel photo here.

7.6 Color Gamut
Show Help
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
Show Help
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.
:
Yes
LG UJ7700 Color Gamut DCI-P3 Picture
DCI P3 xy
Show Help
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%
:
80.55 %
DCI P3 uv
Show Help
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%
:
95.41 %
LG UJ7700 Color Gamut Rec.2020 Picture
Rec 2020 xy
Show Help
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%
:
60.17 %
Rec 2020 uv
Show Help
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%
:
68.55 %
LG UJ7700 EOTF

Wide color gamut. Not as wide as most high end TVs but wider than last year's UH7700. In HDR content the red, blue and green primaries all fall short of their targets, especially the green, as most TVs struggle with deep greens. The TV isn't very accurate at showing the colors in the middle of the gamut, but is more accurate with DCI P3 colors.

The TV's EOTF follows the PQ curve fairly closely, but when shown our darkest grey slide with local dimming on high the TV turned the picture off completely. This shouldn't be a problem during normal usage though as this is a very extreme case. This EOTF was measured in the Cinema picture mode, the EOTF for game mode is shown here.

5.8 Color Volume
Show Help
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 UJ7700 P3 Color Volume Picture
Normalized DCI P3 Coverage
Show Help
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 %
:
65.633 %
10,000 cd/m² DCI P3 Coverage
Show Help
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.
:
44.300 %
LG UJ7700 2020 Color Volume Picture
Normalized Rec 2020 Coverage
Show Help
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 %
:
47.511 %
10,000 cd/m² Rec 2020 Coverage
Show Help
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.
:
31.990 %

Sub-par color volume. The TV's RGBW pixel structure prevents it from making bright colors anywhere near as bright as it makes white. The TV's local dimming helps it darken dim colors, but its very low number of zones prevent it from darkening the center of our black-with-white-border slide, showing the poor black level of its IPS panel.

8.8 Image Retention
Show Help
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 UJ7700 Image Retention Picture
IR after 0 min recovery
Show Help
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%
:
0.03 %
IR after 2 min recovery
Show Help
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 %
IR after 4 min recovery
Show Help
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 %
IR after 6 min recovery
Show Help
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 %
IR after 8 min recovery
Show Help
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 %
IR after 10 min recovery
Show Help
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 %

The UJ7700 does have some image retention, but it is quite minor, which is a very good result for an IPS TV since they are usually more prone to image retention. As you can see on our test picture, the retention right after the burn-in scene is really faint and after the first 2 minutes of recovery, is already gone. For this IPS TV, this is a very good score and people like gamers should not really be worried.

7.5 Reflections
Show Help
What it is: How much light is reflected by the TV.
When it matters: Bright rooms.
Score components: Subjectively assigned
LG UJ7700 Reflections Picture LG UJ7700 Bright Room Picture
Reflection
Show Help
What it is: Ratio of ambient light reflected by the TV.
When it matters: Ambient light in the room.
Good value: < 1%
Noticeable difference: 0.5%
:
1.2 %
Screen Finish
Show Help
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

The UJ7700 is quite good at handling reflections. It has a semi-gloss finish which diffuses reflects across the screen, reducing their intensity. This should be fine for an average room, but may be an issue for a very bright room.

0 3D
Show Help
What it is: Optional 3D video capability on TV.
When it matters: 3D movies and videos.
Score components: Subjectively assigned
3D
Show Help
What it is: If it can display a picture in 3D.
When it matters: 3D movies & videos.
:
No
3D Type
Show Help
What it is: The 3D technology used by the TV.
When it matters: 3D movies & videos.
Good value: Active have better resolution, but flickers. Passive is more comfortable, but loses half the vertical resolution.
:
No
2D to 3D
Show Help
What it is: Feature that converts 2D content to 3D.
When it matters: If you want to watch 2D content in 3D. Note that the quality is not as good as that of native 3D.
:
No

The UJ7700 does not support 3D.

Pixels
LG UJ7700 Pixels Picture

The less accurate RGBW sub-structure means that some straight lines (such as text for PC use) may appear jagged. This is the same behaviour as the UH6500, visible in text here.

7.5

Motion

The motion handling of the UJ7700 is good. It has a fast response time, resulting in only a short trail of blur following moving objects. Motion isn't as smooth as some other TVs though as the backlight flickers by default. It is not possible to increase the amount of flicker to clear up fast moving content. Those sensitive to judder may notice it when watching movies from a HTPC or cable, but most people won't notice these minor cadence issues. Unlike the UH7700, this TV has a 60Hz panel so can't produce as strong of a soap opera effect.

8.3 Motion Blur
Show Help
What it is: Amount of blur on fast movement.
When it matters: Sports, video games.
Score components:
LG UJ7700 Motion Blur Picture LG UJ7700 Response Time Chart
Response Time
Show Help
What it is: How quickly pixels can change color.
When it matters: Fast movement.
Good value: < 20ms
Noticeable difference: 10ms
:
15.2 ms
Overshoot
Show Help
What it is: When TV’s pixels adjust too far; how quickly they come back.
When it matters: Fast movement.
Good value: < 10ms
Noticeable difference: 10ms
:
1.0 ms

The response time is quite fast, so only a short trail can be seen following fast-moving objects. This is similar to the UH7700 from 2016.

2.8 Image Flicker
Show Help
What it is: Luminosity pattern when displaying images
When it matters: Sports, video games, when TV is used as a PC monitor
Score components:
LG UJ7700 Backlight Picture
PWM Dimming Frequency
Show Help
What it is: Flickering pattern at different luminosities.
When it matters: For people sensitive to flickering.
Good value: N/A or high frequencies (> 300 Hz)
:
120 Hz
BFI
Show Help
What it is: Option to turn screen black between frames
When it matters: Reduces eye tracking blur in sports or video games
Good value: Yes
:
No
BFI Frequency
Show Help
What it is: Lowest possible frequency of flickering pattern
When it matters: Reduces eye tracking blur in sports or video games
Good value: 60 Hz
:
120 Hz
BFI In Game Mode
Show Help
What it is: Option to insert black frames when in the best settings for gaming
When it matters: Reducing eye tracking blur for video games
Good value: Yes
:
No

The TV uses PWM at 120Hz to dim the backlight. This results in duplications following fast-moving objects, visible in the motion blur box. The backlight oscilloscope was taken in HDR mode, as the TV doesn't utilize its full brightness in SDR. 100% backlight in SDR looks like this.

7.1 24p Playback
Show Help
What it is: Whether 24p content can play without any judder.
When it matters: Only 24p content (mostly just movies).
Judder-free 24p
Show Help
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
Show Help
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
Show Help
What it is: Judder-free movies over 60i signal.
When it matters: Movies from cable/satellite boxes.
:
No

The LG UJ7700 can display 24p movies without judder when they are played from 24p sources like DVD or Blu-ray players and only when the 'Real Cinema' option is turned on (Settings--> Picture options). On the other hand, the UJ7700 can't remove judder from 24p movies when they are played from 60p/60i sources like cable or satellite boxes.

5.0 Motion Interpolation
Show Help
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.
Motion Interpolation (30 fps)
Show Help
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
LG UJ7700 Motion Interpolation (30 fps) Picture
Motion Interpolation (60 fps)
Show Help
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

The UJ7700 has a 60Hz panel and can interpolate lower frame rate content by setting 'TruMotion' to 'User' and increasing the 'De-Judder' slider. Fans of motion interpolation may be disappointed that it can't produce as strong of a soap opera effect as 120Hz TVs such as the UH7700 from 2016.

9.3

Inputs

Show Help
Score components:

The UJ7700 supports most common input signals, including HDR, and can properly display most content. It has very low input lag that should please nearly any gamer.

9.5 Input Lag
Show Help
What it is: Delay between input and onscreen reaction.
When it matters: Video games; when TV is used as PC monitor.
1080p @ 60Hz
Show Help
What it is: Lowest input lag possible on TV with a 1080p @ 60Hz input.
When it matters: Video games and also when TV is used as PC monitor.
Good value: < 40ms
Noticeable difference: 15ms
:
11.5 ms
1080p With Interpolation
Show Help
What it is: Lowest input lag 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: < 40ms
Noticeable difference: 15ms
:
78.2 ms
1080p @ 60Hz Outside Game Mode
Show Help
What it is: Input lag in picture modes other than the specific game mode.
When it matters: For playing video games while retaining access to all features of the TV.
Good value: < 40ms
Noticeable difference: 15ms
:
44.9 ms
1080p @ 60Hz @ 4:4:4
Show Help
What it is: Lowest input lag possible on TV when displaying 1080p @ 60Hz @ 4:4:4
When it matters: PC monitor.
Good value: < 40ms
Noticeable difference: 15 ms
:
11.6 ms
4k @ 60Hz
Show Help
What it is: Lowest input lag possible on TV when displaying 4k @ 60Hz.
When it matters: Video games and also when TV is used as PC monitor.
Good value: < 40ms
Noticeable difference: 15 ms
:
11.6 ms
4k @ 60Hz @ 4:4:4
Show Help
What it is: Lowest input lag possible on TV when displaying 4k @ 60Hz @ 4:4:4.
When it matters: PC Monitor
Good value: < 40ms
Noticeable difference: 15 ms
:
11.7 ms
4k @ 60Hz + HDR
Show Help
What it is: Lowest input lag possible on TV when displaying 4k @ 60Hz with HDR.
When it matters: HDR Video games.
Good value: < 40ms
Noticeable difference: 15 ms
:
11.3 ms
4k @ 60Hz @ 4:4:4 + 8 bit HDR
Show Help
What it is: Lowest input lag possible on TV when displaying 4k @ 60Hz @ 4:4:4 with HDR enabled at 8 bit
When it matters: PC Monitor with an HDR capable graphic card
Good value: < 40ms
Noticeable difference: 15 ms
:
N/A

Outstanding low input lag, one of the best we've tested. In the Game picture mode, or in any picture mode when the input's icon is changed to PC, the TV has an excellent input lag of ~11 ms, which should please nearly any gamer. However, when HDR content is played while the input’s icon is 'PC', the TV acts though the icon wasn’t 'PC', so the only picture mode with low input lag in HDR is Game mode.

8.0 Supported Resolutions
Show Help
What it is: Different resolutions supported by TV.
When it matters: PC monitor usage.
Score components:
  • 20% 1080p @ 60Hz @ 4:4:4
  • 20% 1080p @ 120Hz
  • 20% 4k @ 30Hz @ 4:4:4
  • 20% 4k @ 60Hz
  • 20% 4k @ 60Hz @ 4:4:4
1080p @ 60Hz @ 4:4:4
Show Help
What it is: Crisp text on 1060p @ 60 hz signal.
When it matters: PC productivity and 60 fps gaming.
:
Yes
1080p @ 120Hz
Show Help
What it is: 120 fps 1080p signal supported.
When it matters: PC gaming.
:
No
4k @ 30Hz @ 4:4:4
Show Help
What it is: Crisp text on 4k @ 30 hz signal.
When it matters: PC productivity and gaming.
:
Yes
4k @ 60Hz
Show Help
What it is: 60 fps 4k signal supported.
When it matters: PC productivity and gaming.
:
Yes
4k @ 60Hz @ 4:4:4
Show Help
What it is: Crisp text on 4k @ 60 hz signal.
When it matters: Productivity and 60 fps gaming in 4k.
:
Yes

Most common resolutions are supported. 4k @ 60 Hz @ 4:2:2 or 4:4:4 color is only supported when 'HDMI ULTRA HD Deep Color' is enabled for that input. 4:4:4 color is only properly displayed when the input's icon is set to PC. When HDR content is played when the input's icon is set to PC, the TV acts like the icon isn't PC, making the TV unable to properly display 4:4:4 color in HDR.

Although the TV can properly display 4:4:4 color, its less accurate RGBW pixel structure produces artifacts when showing fine color detail. This is visible as jagged lines in our chroma 4:4:4 test image, shown here for the RGBW UH6500, compared to the perfect presentation of a true RGB TV such as the X750D shown here. This isn't a huge concern, but may be noticeable in some cases.

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
Show Help
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
Show Help
What it is: Better format, due to its dynamic nature.
When it matters: Currently, only available via streaming.
:
Yes
5.1 Passthrough ARC Dolby Digital
Show Help
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
Show Help
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
Show Help
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
Show Help
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 : Yes (HDMI 1,2,3,4)
ARC : Yes (HDMI 2)
USB 3 : No
HDCP 2.2 : Yes (HDMI 1,2,3,4)
CEC : Yes
MHL : No
Variable Analog Audio Out : No

6.4

Sound Quality

The UJ7700's sound quality is about average for a TV. It won't surprise anyone with its quality, but most content shouldn't have any issues. Like other high-end LG TVs with the 'Magic Remote', it has a room calibration feature that uses the microphone on the remote, which does make a good difference.

6.6 Frequency Response
Show Help
What it is: Sound level at different frequencies.
When it matters: For balanced sound.
Score components:
LG UJ7700 Frequency Response Picture
Std. Dev. @ 70
Show Help
What it is: Variance of the sound level at different frequencies.
When it matters: 70 dB.
Good value: < 4 dB
Noticeable difference: 2 dB
:
3.26 dB SPL
Std. Dev. @ 80
Show Help
What it is: Variance of the sound level at different frequencies.
When it matters: 80 dB.
Good value: < 4 dB
Noticeable difference: 2 dB
:
3.68 dB SPL
Std. Dev. @ Max
Show Help
What it is: Variance of the sound level at different frequencies.
When it matters: Max volume.
Good value: < 4 dB
Noticeable difference: 2 dB
:
6.86 dB SPL
Max
Show Help
What it is: Max volume on the TV at a distance of 1 meter.
When it matters: For listening to loud audio.
Good value: > 90 dB
Noticeable difference: 2 dB
:
86 dB SPL
Low-end Cutoff
Show Help
What it is: How low of a frequency at which the bass starts.
When it matters: Movies; gaming.
Good value: < 50Hz
Noticeable difference: 10Hz
:
95 Hz

Decent frequency response and maximum volume. Maximum volume suffers from very strong amounts of compression. The bass extension falls a bit short as well.

5.8 Total Harmonic Distortion
Show Help
What it is: Pureness of a single frequency.
Score components:
LG UJ7700 Total Harmonic Distortion Picture
Distortion @ 70
Show Help
What it is: Amount of distortion.
When it matters: 70 dB.
Good value: < 0.100
Noticeable difference: 0.100
:
0.042
Distortion @ 80
Show Help
What it is: Amount of distortion.
When it matters: 80 dB.
Good value: < 0.100
Noticeable difference: 0.100
:
0.081
Distortion @ Max
Show Help
What it is: Amount of distortion.
When it matters: 85 dB.
Good value: < 0.100
Noticeable difference: 0.100
:
0.087

The UJ7700 produces a fair amount of distortion. THD is elevated even on more reasonable levels.

9.0

Smart Features

Show Help
Score components: Subjectively assigned
LG UJ7700 Smart TV Picture
Smart OS : WebOS 3.5

The UJ7700 runs LG's webOS smart platform, which has a lot of low-level options for controlling the TV while still being easy to navigate. The remote has a few buttons that open quick menus, giving fast access to basic options, yet digging deeper into the interface reveals a lot of advanced options. When the remote is pointed at the screen, a cursor follows its movement, enabling options to be selected directly. The remote also has a microphone for voice commands. Content can be played from the TV's many native apps, cast to the TV from a smartphone or tablet, and played from a USB drive plugged into one of the TV's two USB ports.

Apps
LG UJ7700 Apps Picture

The TV comes preloaded with many popular apps such as Netflix, YouTube and Amazon Video. Many more apps and other content can be downloaded from the LG Content Store.

0 Ads
Show Help
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:
LG UJ7700 Ads Picture
Ad-free
Show Help
What it is: The TV's ability to provide an ad-free experience.
When it matters: When using the smart features.
:
No
Opt-out
Show Help
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

The TV has ads in the LG Content Store and voice search results, and they cannot be opted out of.

TV Controls
LG UJ7700 Controls Picture

The TV has five physical buttons (up, down, right, left, enter), that allow controlling nearly anything the remote can.

Remote
LG UJ7700 Remote Picture
Remote : Smart

The UJ7700 uses LG's excellent Magic Remote, which might be the best smart remote we've used. When the remote is pointed at the TV a cursor follows its movement, allowing deft users to quickly select their target. The remote's microphone is used for voice commands, which can do many things like changing settings and searching for content. At the center of the navigation pad is a scroll wheel that doubles as the select button, so the user can scroll to the option they want and quickly select it without moving their thumb.

In The Box
LG UJ7700 In The Box Picture

  • Manual
  • Batteries
  • Remote
  • Cable management strap

Misc
Power Consumption : 43 W
Power Consumption (Max) : 107 W
Firmware : 03.50.90

Differences between Sizes and Variants

We tested the 49" (49UJ7700). For the most part, we expect our review to be valid for other sizes of the UJ7700.

If someone comes across a different type of panel or if their LG UJ7700 doesn't correspond to our review, let us know and we will update the review.

Size Model
49" 49UJ7700
55" 55UJ7700
60" 60UJ7700
65" 65UJ7700

Compared to other TVs

LG UJ7700 Group Shot Picture
Top left: Sony X800E (XBR43X800E). Bottom left: LG UJ6300 (43UJ6300). Middle: LG UJ7700 (49UJ7700). Top right: Samsung MU7000 (UN55MU7000). Bottom right: Vizio M Series 2017 (M65-E0).  Unlike our other photographs, this picture wasn't taken under a controlled environment, so do not draw conclusions from it.

The UJ7700 is a good TV, but it's in the most popular price bracket of the market, so it has a lot of competition that often offers better value.

Sony X800E
43" 49" 55"

The X800E is a very comparable 4k LED TV from Sony. They are both IPS LCD TVs with similar performance. The X800E is a fair bit brighter with standard content such as broadcast TV, but the UJ7700 is brighter in HDR. The LG also has lower input lag. They are very comparable TVs overall, so pick whichever is cheaper.

LG UH7700
55" 60" 65"

The LG UH7700 is the 2016 UHD TV that the UJ7700 replaces. Unlike the new model, it does not feature an RGBW pixel structure, but the overall performance is quite similar. If the lower light output of the UH7700 isn't an issue, then it's worth picking over the UJ7700 if it is found for cheaper.

Samsung MU8000
49" 55" 65" 75"

Samsung's MU8000 LED TV is their similarly priced mid-range offering. It doesn't have the same wide viewing angles as the UJ7700, but it performs quite a bit better in a dark room. It also gets brighter, which is useful for both HDR and brighter environments to reduce the effects of reflections. Unless you'll frequently watch your TV from the side, then the MU8000 is a better buy over the LG.

Vizio M Series 2016
50" 55" 60" 65" 70" 80"

The Vizio M Series 2016 is a commonly recommended mid-range TV from 2016. It features a powerful local dimming feature that greatly enhances the depth of blacks and contrasts. If placed in a darker environment, the Vizio M will offer much better picture quality than the LG UJ7700. It's a bit more limited with HDR, but most people will prefer the Vizio.

Conclusion
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7.4Mixed Usage
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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:
Good TV for a mixed usage. The LG UJ7700 has a wider viewing angle than average and decent picture quality. A combination of low motion blur, low input lag and excellent smart features makes it quite versatile.
6.7Movies
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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:
Average choice for movies in a dark room. The UJ7700's blacks are not very deep or uniform. The local dimming feature is also better kept disabled since it can often be quite distracting.
7.4TV Shows
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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:
Decent TV for watching TV shows. The viewing angle is a bit wider than average, and the WebOS smart platform is excellent. Unfortunately, though, it's not the brightest in SDR, which can cause issues in well-lit environments.
7.5Sports
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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.
Score components:
Good TV for watching sports. The LG UJ7700's picture is quite uniform and has little motion blur, but there is some dirty screen effect. It also has wider than average viewing angles, making it good for game days with a lot of company.
8.1Video Games
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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.
Score components:
Great TV for playing video games. Input lag is incredibly low, and, motion is suitably good as well, making the whole experience quite responsive.
7.8HDR Movies
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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:
Good TV for HDR movies. Gets brighter than most other IPS LED TVs, and features Dolby Vision, which some users might appreciate. It can also display a wider range of colors without gradations, which is important for HDR.
8.0HDR Gaming
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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.
The UJ7700's input lag does not deteriorate with an HDR input, which is great. The TV's already very good gaming capabilities translate well with HDR content.
7.4PC Monitor
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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:
Average PC monitor. Necessary resolutions are present, and the wider viewing angle helps keep the entire screen uniform when sitting close. It isn't the brightest though, and the RGBW pixel structure can cause some issues with straight vertical lines.
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Questions & Answers

4 ANSWERED QUESTIONS
1
Hi, I'm looking for a new TV, mainly for gaming, and am trying to decide between this or the Vizio M series but am having a bit of a hard time understanding why you consider the Vizio a better gaming TV. The LG not only seems to have much better input lag but also has a wide color gamut. So what makes the Vizio a better gaming TV? I've also heard it has a lot of issues even using HDR period.
The LG UJ7700 does have lower input lag than the Vizio M Series, but the M Series outperforms the UJ7700 in most of the other categories that are considered for the SDR Gaming usage score. For example, the M Series has a lower response time, resulting in less motion blur for fast-paced action sequences in games. Color gamut is not included in the SDR Gaming rating, as it only makes a difference for HDR content. Color gamut has a high impact on the score for the HDR Gaming category, causing the LG UJ7700 and Vizion M Series to have much closer scores for the HDR Gaming usage score.
1
I love the site, get me a question, the UJ7700 in game mode and standard has the peak of brilliance around 400 to 450 cd / m, 100% sustained? Do I run the risk of the TV oscillating the brightness in this mode? I say this because I liked the TV and I have a room with moderate to slightly bright lighting and focus on making my K / D climb up with it due to the low input lag. I took these from the calibration data that you had. Thanks.
Yes, the UJ7700 will be able to output a sustained 450 nits if using the standard picture mode with the local dimming turned off. We haven't noticed any variation in brightness over time.
0
It's a shame to see LG's LED TVs stumble right out of the gate. It gives the impression that they only know hot to do OLED, and should the industry experience something akin to what happened with Plasma to OLED, LG might very well fall off of the face of the TV market (similar to Panasonic). All that aside, I notice that the Overall Score has been replaced with a Mixed Score, much like the headphone section. Now while I can understand that with headphones (some are designed for very specific purposes, after all), I feel the Overall Score was a much more important factor with TVs. Yeah, you do occasionally get someone who is trying to get a TV for JUST gaming, but most of the time an overall assessment of TVs is much more sought after.
The biggest difference between the old Overall Score and the new Mixed Score is the name. Both use the same test results, and the same models with come out on top or at the bottom using either system. The previous system assigned weights directly to each test result to calculate the Overall Score. The current system assigns weights to each test to calculate each Usage Score, then Usage Scores are weighted to calculate the Mixed Score. Scores calculated in one way or the other are essentially the same, but the name 'Mixed Score' is more representative of the final score we assign to a TV.
0
Assuming the measured input lag using the Leo Bodnar test equals input lag + response time, how can the input lag be 11 ms and the response time be 15 ms?
The Leo Bodnar tool sends a frame with a white rectangle, and records the time until its photodiode measures light above a certain threshold. This brightness threshold is fairly low, so the photodiode will declare the frame received long before the TV is finished its 0%-100% transition. Because of this the TVs response time usually only adds a few milliseconds to its input lag. To minimize this we measure input lag at maximum brightness with local dimming off.
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