Our Verdict
The LG UF7700 isn't a great 4k TV. The picture quality both in a bright and dark room is not good. It also has high input lag and average motion blur for video games. In terms of positives, the smart features are great, and it has a great viewing angle.
- Great color accuracy at an angle.
- Great smart features.
- Poor screen uniformity.
- High input lag.
- Poor blacks.
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We buy and test dozens of TVs yearly, taking an objective, data-driven approach to deliver results you can trust. Our testing process is complex, with hundreds of individual tests that take over a week to complete. Most of our tests are done with specially designed test patterns that mimic real content, but we also use the same sources you have at home to ensure our results match the real-world experience. We use two main tools for our testing: a Colorimetry Research CR-100 colorimeter and a CR-250 spectroradiometer.
Test Results
The stand is wide. Contrary to most two feet configurations, this one isn't stable. It moves back and forth a lot when you push it.
This LG TV (except the 70") has an IPS panel. The contrast ratio is low, which results in poor blacks when you have the lights off.
It is equipped with the local dimming feature. The zones are really big, so as you can see in this video, it isn't very effective.
The edges of this LED TV are darker than the rest, and it has noticeable dirty screen effect.
The main advantage of an IPS panel like the one found in this LG is the color accuracy at an angle. Instead of losing saturation, the picture just darkens when viewed off-axis.
Update 01/06/2017: We have changed the methodology of testing. Since this is an old TV which we don't have anymore, we extrapolated the results from 2016 TVs.
The corners are noticeably brighter than the rest of the screen.
The LG UF7700 reflects a lot of light. There are also a few rainbows around bright objects.
The maximum luminosity is average. Because the screen reflects a lot of light, that means this TV isn't ideal for a bright room.
This TV's motion blur is slightly worse than average. Apart from in some video games, you likely won't notice it.
This is a 120Hz TV with motion interpolation. It does support 24p playback for movies, and even do the 3:2 reverse pulldown over 60i, but it somehow couldn't do it over 60p.
The input lag is high and varied a lot (from 55 to 65 ms). PC, Game, and Expert1 all had the same input lag when TruMotion was off. When TruMotion was turned on, the input lag increased to 113.6ms.
To enable chroma 4:4:4, set the icon of the input to PC. For 4k @ 60hz @ 4:4:4, also enable UHD Deep Color.
Not only this TV doesn't get loud, but the frequency response is quite poor too. Especially when pushed hard. The low-end cut off is decent for a TV however.
Acceptable and stable distortion levels throughout the range of the TV, but it doesn't get loud.
