LG LF6100 TV Review

Reviewed May 11, 2015 at 12:00 am
LG LF6100 Picture
Usage Ratings - Version 1.0
6.3
Mixed Usage
Value for price beaten by
: Not at the latest test bench
6.2
Movies
6.7
TV Shows
6.7
Sports
6.6
Video Games
5.0
HDR Movies
3.8
HDR Gaming
5.2
PC Monitor
Type LED
Resolution 1080p
Refresh Rate 60 Hz

The LG LF6100 LED TV has great contrast and black uniformity, so it is a good TV for movies or TV shows. However, its motion blur and high input lag prevent it from being a good gaming TV.

Our Verdict

6.3 Mixed Usage

The LG LF6100 LED TV has about the same picture quality as the cheaper LF6000, but it adds motion interpolation (up to 60Hz) and smart features. The contrast ratio and black uniformity are great, but it has too much motion blur and high input lag. It is a good TV for movies and TV shows, though.

See our Mixed Usage recommendations
  • 6.3 Mixed Usage
  • 6.2 Movies
  • 6.7 TV Shows
  • 6.7 Sports
  • 6.6 Video Games
  • 5.0 HDR Movies
  • 3.8 HDR Gaming
  • 5.2 PC Monitor
Pros
  • Great contrast ratio.
  • Minimal reflection.
Cons
  • High input lag.
  • More motion blur than average.
  • Limited viewing angle.

Check Price

Test Results

Design
8.0
Design
Style
Curved No

Design
Stand

You will need a wide table to accommodate this TV, because the stand has a foot on either end. Our 50" had a footprint of 40.5" x 10".

Design
Borders
Borders 0.59" (1.5 cm)

Design
Thickness
Max Thickness 2.04" (5.2 cm)

Picture Quality
8.7
Picture Quality
Contrast
Native Contrast
4833 : 1

The native contrast ratio is really great - the best we've tested so far this year.

0
Picture Quality
Local Dimming
Local Dimming
No
Backlight
Direct

5.7
Picture Quality
SDR Peak Brightness
SDR Peak 2% Window
217 cd/m2
SDR Peak 50% Window
217 cd/m2

6.9
Picture Quality
Gray Uniformity
50% Std. Dev.
3.476 %
50% DSE
0.206 %

Unfortunately, the gray uniformity isn't as good as the black. The corners are darker and the screen has a few small dark patches all across the screen.

4.3
Picture Quality
Viewing Angle
LCD Type
VA
Color Shift
20 °
Brightness
30 °
Black Level
21 °

This LG has a VA panel, which means the color shifts when you watch the TV at an angle. The blacks are also not as great 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.

9.3
Picture Quality
Black Uniformity
Native Std. Dev.
0.802 %

The black uniformity is great on this TV. No clouding or flashlighting at all.

8.7
Picture Quality
Pre Calibration
White Balance dE
2.50
Color dE
2.0063
Gamma
2.15

9.8
Picture Quality
Post Calibration
White Balance dE
0.21
Color dE
0.6284
Gamma
2.21

8.0
Picture Quality
480p Input

This TV has no problem upscaling DVDs. The picture stays sharp, even when 'Noise Reduction' is turned on.

8.0
Picture Quality
720p Input

Cable TV after upscaling looks good.

10
Picture Quality
1080p Input

Blu-rays and other 1080p content looks great.

0
Picture Quality
4k Input

6.7
Picture Quality
Color Gamut
Wide Color Gamut
No
DCI P3 xy
73.82 %
DCI P3 uv
80.73 %
Rec 2020 xy
52.94 %
Rec 2020 uv
60.13 %

8.0
Picture Quality
Reflections
Reflection
1.8 %
Screen Finish
Semi-gloss

The reflection on this LG LF6100 is average. You can have a few lights on without problem.
It doesn't get very bright, so it isn't the best TV if you have a lot of windows in your room.

0
Picture Quality
3D
3D
No
3D Type
No

Picture Quality
Pixels
Motion
6.7
Motion
Motion Blur
Response Time
24.2 ms
Overshoot
0.2 ms

The length of the motion blur trail is long. It isn't an issue for movies or TV shows, but it could be for sports or playing video games.

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

7.1
Motion
24p Playback
Judder-free 24p
Yes
Judder-free 24p via 60p
No
Judder-free 24p via 60i
No

It is a 60Hz TV with motion interpolation. It also supports 24p playback (which means no judder in movies when sent over a 24Hz input). However, it cannot do a 3:2 reverse pulldown.

5.0
Motion
Motion Interpolation
Motion Interpolation (30 fps)
Yes
Motion Interpolation (60 fps)
No

Inputs
5.9
Inputs
Input Lag
1080p @ 60Hz
49.7 ms
1080p With Interpolation
149.9 ms
1080p @ 60Hz Outside Game Mode
149.8 ms
1080p @ 60Hz @ 4:4:4
59.8 ms
4k @ 60Hz
N/A
4k @ 60Hz @ 4:4:4
N/A
4k @ 60Hz + HDR
N/A
4k @ 60Hz @ 4:4:4 + 8 bit HDR
N/A

The input lag of the LG LF6100 is 49.7 ms under game mode. Labeling the input as PC increases the lag to 59.8 ms. The rest of the modes have a really high input lag 149.8 ms.

2.0
Inputs
Supported Resolutions
1080p @ 60Hz @ 4:4:4
Yes
1080p @ 120Hz
No
4k @ 30Hz @ 4:4:4
No
4k @ 60Hz
No
4k @ 60Hz @ 4:4:4
No

Label the input as PC to enable chroma 4:4:4.

Inputs
Side Inputs
Inputs
Rear Inputs
Inputs
Total Inputs
HDMI 3
USB 3
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
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 No
ARC Yes (HDMI 1)
USB 3 No
HDCP 2.2 No
CEC Yes
MHL Yes (HDMI 3)
Variable Analog Audio Out No

Sound Quality
6.3
Sound Quality
Frequency Response
Std. Dev. @ 70
4.39 dB SPL
Std. Dev. @ 80
5.12 dB SPL
Std. Dev. @ Max
6.75 dB SPL
Max
85.3 dB SPL
Low-end Cutoff
95 Hz

This TV doesn't get loud, but the low-end cut off is decent. The frequency response is good at lower volumes, but it suffers as the volume increases. Pumping may be present.

6.5
Sound Quality
Total Harmonic Distortion
Distortion @ 70
0.022
Distortion @ 80
0.047
Distortion @ Max
0.042

Acceptable distortion level throughout the range, but the TV doesn't get loud.

Smart Features
6.0
Smart Features
Interface
Smart OS Basic

Smart Features
Remote
Remote Basic

The basic remote isn't great for using the smart features, but it does the job.

Smart Features
Misc
Power Consumption 44 W
Power Consumption (Max) 79 W
Firmware 03.00.13

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