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Reviewed on Apr 30, 2015

LG UF7700 TV REVIEW

Usage Ratings - Version 1.0
6.6
Mixed Usage
Value for price beaten by
: Not at the latest test bench
6.1
Movies
7.2
TV Shows
7.0
Sports
6.6
Video Games
6.1
HDR Movies
4.3
HDR Gaming
6.6
PC Monitor
This tv was replaced by the LG UH7700

Type : LED
Resolution : 4k
Refresh Rate : 120 Hz

The LG UF7700 4k LED TV has great smart features and good color accuracy at an angle. However, its picture quality when sitting in front is sub-par, both in dark and bright rooms. The contrast ratio is low, it has a few uniformity issues, and it reflects more light than average.

Test Results
Design 8.5
Picture Quality 6.7
Motion 7.8
Inputs 6.2
Sound Quality 5.9
Smart Features 9.0
Pros
  • Great color accuracy at an angle.
  • Great smart features.
Cons
  • Poor screen uniformity.
  • High input lag.
  • Poor blacks.

Check Price

8.5

Design

Curved : No
Stand

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.

Borders
Borders : 0.63" (1.6 cm)

Thickness
Max Thickness : 1.61" (4.1 cm)

6.7

Picture Quality

5.6 Contrast
Native Contrast
:
795 : 1

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.

3.0 Local Dimming
Local Dimming
:
Yes
Backlight
:
Direct

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.

5.9 SDR Peak Brightness
SDR Peak 2% Window
:
270 cd/m2
SDR Peak 50% Window
:
270 cd/m2

6.2 Gray Uniformity
50% Std. Dev.
:
4.853 %
50% DSE
:
0.227 %

The edges of this LED TV are darker than the rest, and it has noticeable dirty screen effect.

6.5 Viewing Angle
LCD Type
:
IPS (except 70")
Color Shift
:
25 °
Brightness
:
36 °
Black Level
:
75 °

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.

2.4 Black Uniformity
Native Std. Dev.
:
4.63 %

The corners are noticeably brighter than the rest of the screen.

8.4 Pre Calibration
White Balance dE
:
2.08
Color dE
:
3.8416
Gamma
:
2.15

9.7 Post Calibration
White Balance dE
:
0.23
Color dE
:
0.8641
Gamma
:
2.19

7.0 480p Input

480p and DVD upscaling is a little bit sub-par on this TV.

8.0 720p Input

Cable TV and other 720p content looks good.

8.5 1080p Input

1080p is also slightly softer than on most other 4k TVs.

10 4k Input

No issues come up with 4k content.

6.4 Color Gamut
Wide Color Gamut
:
No
DCI P3 xy
:
70.67 %
DCI P3 uv
:
78.49 %
Rec 2020 xy
:
50.36 %
Rec 2020 uv
:
57.19 %

7.0 Reflections
Reflection
:
1.9 %
Screen Finish
:
Semi-gloss

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.

0 3D
3D
:
No
3D Type
:
No

Pixels
7.8

Motion

7.9 Motion Blur
Response Time
:
17.6 ms
Overshoot
:
0 ms

This TV's motion blur is slightly worse than average. Apart from in some video games, you likely won't notice it.

2.8 Image Flicker
PWM Dimming Frequency
:
120 Hz
BFI
:
No
BFI Frequency
:
120 Hz
BFI In Game Mode
:
No

8.6 24p Playback
Judder-free 24p
:
Yes
Judder-free 24p via 60p
:
No
Judder-free 24p via 60i
:
Yes

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.

10 Motion Interpolation
Motion Interpolation (30 fps)
:
Yes
Motion Interpolation (60 fps)
:
Yes

6.2

Inputs

5.8 Input Lag
1080p @ 60Hz
:
59.4 ms
1080p With Interpolation
:
113.6 ms
1080p @ 60Hz Outside Game Mode
:
59.4 ms
1080p @ 60Hz @ 4:4:4
:
59.4 ms
4k @ 60Hz + HDR
:
N/A
4k @ 60Hz @ 4:4:4 + 8 bit HDR
:
N/A

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.

8.0 Supported Resolutions
1080p @ 60Hz @ 4:4:4
:
Yes
1080p @ 120Hz
:
No
4k @ 30Hz @ 4:4:4
:
Yes
4k @ 60Hz
:
Yes
4k @ 60Hz @ 4:4:4
:
Yes

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.

Side Inputs
Rear Inputs
Total Inputs
HDMI : 3
USB : 3
Digital Optical Audio Out : 1
Analog Audio Out 3.5mm : 1
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
:
No
Dolby Vision
:
No
5.1 Passthrough ARC Dolby Digital
:
Yes
5.1 Passthrough ARC DTS
:
Yes
5.1 Passthrough Optical Dolby Digital
:
Yes
5.1 Passthrough Optical DTS
:
Yes
HDMI 2.0 Full Bandwidth : Yes
ARC : Yes (HDMI 2)
USB 3 : Yes (1)
HDCP 2.2 : Yes (HDMI 1,2,5)
CEC : Yes
MHL : No
Variable Analog Audio Out : Yes

5.9

Sound Quality

Note: Sound Quality test for TVs reviewed before 2017 was performed at 75dB, 85dB, and Max SPL. Starting 2017, the target SPL levels have been changed to 70dB, 80dB, and Max dB SPL.

5.6 Frequency Response
Std. Dev. @ 70
:
5.10 dB SPL
Std. Dev. @ 80
:
7.00 dB SPL
Std. Dev. @ Max
:
8.59 dB SPL
Max
:
85.3 dB SPL
Low-end Cutoff
:
89 Hz

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.

6.6 Total Harmonic Distortion
Distortion @ 70
:
0.067
Distortion @ 80
:
0.026
Distortion @ Max
:
0.037

Acceptable and stable distortion levels throughout the range of the TV, but it doesn't get loud.

9.0

Smart Features

Smart OS : WebOS
0 Ads
Ad-free
:
No
Opt-out
:
No

Remote
Remote : Smart

You can control the mouse pointer by using the remote.

Misc
Firmware : 03.00.61

6.6 Mixed Usage

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.

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