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LG UH6150 TV Review

Tested using Methodology v1.0
Reviewed Nov 18, 2016 at 04:01 pm
LG UH6150 Picture
Mixed Usage
Value for price beaten by
: Not at the latest test bench
TV Shows
Video Games
HDR Movies
HDR Gaming
PC Monitor
This TV was replaced by the LG UJ6300
Type LED
Resolution "4k"
Refresh Rate 60 Hz

The LG UH6150 is a "4k" UHD LED TV. The picture quality is slightly below average, in-part due to the less accurate RGBW pixel structure. The native contrast is very low, which combined with poor black uniformity leads to bad dark room performance. It does stand out in some areas though, as the motion handling is excellent and the picture remains accurate when viewed at an angle.

Our Verdict

7.3 Mixed Usage

Slightly above average for a range of usages. Poor dark scene performance due to the low native contrast ratio and bad black uniformity. Motion handling is excellent, and looks great.

  • Excellent motion handling
  • Picture remains accurate when viewed at an angle
  • Very poor contrast
  • Can't get very bright once calibrated
  • Poor black uniformity
5.9 Movies

Poor movie performance in a dark room. Blacks appear gray, and dark scene uniformity is bad. Doesn't support local dimming to improve performance.

7.5 TV Shows

Better than average for watching TV in a bright room. Image remains accurate when viewed at an angle. Under calibrated settings, can't get very bright to combat glare. Average at dealing with reflections. Smart platform works well for casual viewing.

7.7 Sports

Good TV for watching sports. Motion handling is excellent, due to the very fast response time. Can't get very bright to combat glare, but the image remains accurate when viewed at an angle. Dirty screen effect isn't really visible, which is good.

7.9 Video Games

Good for gamers. Motion handling is excellent, which is great for fast paced games. Picture quality is slightly below average. Input lag is okay, and shouldn't be an issue for most people.

6.9 HDR Movies

Below average for watching HDR movies in a dark room. Picture quality is slightly below average, and blacks don't get very deep. Supports the HDR10 format but can't display a wider range of colors or bright highlights.

7.9 HDR Gaming

Average for HDR gaming. Picture quality is slightly below average due to low native contrast ratio. Motion handling is excellent even for very fast paced content. Input lag with HDR is okay, but may be an issue for some people.

7.5 PC Monitor

Good TV as a PC monitor. Picture quality is slightly below average, and RGBW pixel structure results in less accurate text. With the 'PC' icon selected, the input lag is quite high, but the motion blur is very good.

  • 7.3 Mixed Usage
  • 5.9 Movies
  • 7.5 TV Shows
  • 7.7 Sports
  • 7.9 Video Games
  • 6.9 HDR Movies
  • 7.9 HDR Gaming
  • 7.5 PC Monitor

Test Results

Curved No

The design of the UH6150 is quite good, and an improvement upon the smaller UH6100 as it appears to be more high-end. It has a metallic-looking border surrounding the screen, which adds to the premium feel.


The stand is very wide, but it supports the TV well. It is made of plastic, but looks alright.

Footprint of the 55" TV stand: 9.4" x 37.2"

Wall Mount VESA 300x300

The rear of the TV is textured similar to other LG TVs, such as the smaller size UH6100. It is quite reflective and attracts fingerprints, but looks good.

Borders 0.71" (1.8 cm)

The borders are of an average thickness. They look quite good with a layered look of different plastic levels.

Max Thickness 2.13" (5.4 cm)

The TV appears quite thin from the side. The thickest part of the TV is near the bottom, but this will still look great if wall-mounted.

Maximum Temperature
42 °C
Average Temperature
34.9 °C

The efficiency benefits of the RGBW sub-pixel arrangements do not affect the heat output at maximum backlight.

Picture Quality
Picture Quality
Native Contrast
500 : 1

The UH6150 has a very low native contrast ratio, even for an IPS TV. Due to the low peak brightness with our calibration temperature of 6500K, the backlight has to be turned up a lot to reach our target white square value of 100 nits. This also raises the black level, so that the blacks appear gray even in a fairly bright room. See the 'Peak Brightness' test for more information.

When set to a cooler color temperature, the native contrast ratio was about double what we were able to achieve. This is because the white subpixel is at a cool color temperature and so the backlight doesn't have to be turned up as high.

Picture Quality
Local Dimming
Local Dimming

The UH6150 doesn't support any local dimming features. This video is taken for reference.

Picture Quality
SDR Peak Brightness
SDR Real Scene Peak Brightness
188 cd/m2
SDR Peak 2% Window
158 cd/m2
SDR Peak 10% Window
159 cd/m2
SDR Peak 25% Window
157 cd/m2
SDR Peak 50% Window
164 cd/m2
SDR Peak 100% Window
166 cd/m2
SDR Sustained 2% Window
158 cd/m2
SDR Sustained 10% Window
159 cd/m2
SDR Sustained 25% Window
157 cd/m2
SDR Sustained 50% Window
164 cd/m2
SDR Sustained 100% Window
166 cd/m2

The SDR peak brightness is bad, leaving you with a very dim TV that will have a hard time fighting glare is set in a bright room. Since there is no local dimming, the same level of brightness is present at all windows size.

Picture Quality
HDR Peak Brightness
HDR Real Scene Peak Brightness
191 cd/m2
HDR Peak 2% Window
183 cd/m2
HDR Peak 10% Window
183 cd/m2
HDR Peak 25% Window
183 cd/m2
HDR Peak 50% Window
183 cd/m2
HDR Peak 100% Window
183 cd/m2
HDR Sustained 2% Window
183 cd/m2
HDR Sustained 10% Window
183 cd/m2
HDR Sustained 25% Window
183 cd/m2
HDR Sustained 50% Window
183 cd/m2
HDR Sustained 100% Window
183 cd/m2

The UH6150 has an RGBW pixel structure, and mostly uses the white subpixel to raise the peak brightness. This white subpixel is much cooler than our calibration temperature of 6500K, and so under calibration conditions isn't used to its full brightness, and the peak brightness is very low. To give consistent comparisons across all TVs we use this peak brightness for our test results, but under a cooler color temperature, the peak brightness is 352 cd/m² across all window sizes.

Picture Quality
Gray Uniformity
50% Std. Dev.
4.245 %
50% DSE
0.179 %

The gray uniformity is slightly better than average on this LG TV. Both sides are darker and the bottom of the screen is also warmer. There is almost no dirty screen effect, which is good, when compared to other LG budget TVs that we have tested.

Picture Quality
Viewing Angle
LCD Type
Color Shift
43 °
48 °
Black Level
75 °

The viewing angle is good on the LG UH6150. Color accuracy is kept even at a wide angle making this TV a good choice for those with a wide seating area.

Picture Quality
Black Uniformity
Native Std. Dev.
3.088 %

The black uniformity is very poor. Due to the low native contrast ratio, the whole screen appears gray. On top of that, there is some flashlighting on the bottom right side and on the top left side. Since the native contrast is so low when in calibrated mode, clouding can be seen even when watching normal content like movies, especially in the black letter box.

Picture Quality
Color Depth
10 Bit

The UH6150 can display our gradient test pattern without any 8 bit gradations and the resulting image is very smooth and without any banding or shade problems.

Picture Quality
Pre Calibration
White Balance dE
Color dE

Prior to calibration, the results are good enough for most people. The colors are a bit inaccurate but just following our recommended settings is 90% of the way there.

Picture Quality
Post Calibration
White Balance dE
Color dE

The white balance is relatively easy to fix with the 2 point and 20 point calibration. Unfortunately the color space is much less responsive, and we were unable to completely fix all of the issues. Trying to fix the color space (and adjust the luminance values) caused some artifacts to appear when watching normal content. This is the best result we were able to achieve without introducing any artifacts.

You can see our recommended settings here.

Picture Quality
480p Input

Upscaling of low quality content is good. Some halo artifacts can be seen along smoothed lines, but this is less pronounced than some other TVs.

Picture Quality
720p Input

720p content such as cable looks good. The image is clear and details are preserved.

Picture Quality
1080p Input

1080p content looks very good on the TV, and the image remains sharp.

Picture Quality
4k Input

At the native resolution of 4k, thin vertical lines such as those that appear in text lose some detail due to the less accurate RGBW pixel structure. This is especially obvious when looking at our chroma test pattern, visible here.

Picture Quality
Color Gamut
Wide Color Gamut
DCI P3 xy
82.60 %
DCI P3 uv
90.15 %
Rec 2020 xy
59.50 %
Rec 2020 uv
64.34 %

The UH6150 doesn't support a wide color gamut. There is the option of either 'Extended' or 'Normal' color gamut. Although the 'Extended' option does cover a larger area of the colorspace, it is still not enough to display HDR content well. For SDR content this is a good result.

Picture Quality
Color Volume
Normalized DCI P3 Coverage
46.648 %
10,000 cd/m² DCI P3 Coverage
24.770 %
Normalized Rec 2020 Coverage
34.628 %
10,000 cd/m² Rec 2020 Coverage
18.459 %

The UH6150 can't produce a wide range of colors at different luminosities. The color volume coverage is poor.

Picture Quality
Image Retention
IR after 0 min recovery
0.000 %
IR after 2 min recovery
0.000 %
IR after 4 min recovery
0.000 %
IR after 6 min recovery
0.000 %
IR after 8 min recovery
0.000 %
IR after 10 min recovery
0.000 %

The LG UH6150 is free of image retention, which is a very good result for an LG IPS TV. This result combine with the wide viewing angle is very good and especially for people looking to use this TV as a PC monitor.

Picture Quality
2.0 %
Screen Finish

The UH6150 has a semi-gloss finish, which diffuses the reflections a bit. This helps to reduce the intensity of direct reflections. This is well suited to a room with few direct reflections, but is not ideal for a very bright room.

Picture Quality
3D Type
2D to 3D

The UH6150 doesn't support 3D.

Picture Quality

When looking at the pixels close up, it is possible to see the RGBW sub-structure of the ADS panel. This is the first time we have seen an RGBW PLS panel. The 55" Samsung JS7000 we reviewed also has a similar (PLS) panel, but with normal RGB subpixels. Note that the 60" model has a different type of IPS panel, and the pixel photo can be seen here.

Motion Blur
Response Time
7.9 ms
2.2 ms

The response time is very low, which is excellent. Motion blur is not an issue on this TV. Some overshoot can be seen trailing the logo. The backlight uses PWM to dim, but as this photo was taken with a high backlight setting it is not visible in this photo.

Image Flicker
PWM Dimming Frequency
120 Hz
BFI Frequency
120 Hz
BFI In Game Mode

24p Playback
Judder-free 24p
Judder-free 24p via 60p
Judder-free 24p via 60i

Native 24p sources such as Blu-rays or the inbuilt apps don't experience any judder when the 'RealCinema' option is enabled. Some judder is present when playing movies from 60Hz sources such as a home theater PC or cable, and this can't be removed without introducing motion interpolation. Most people aren't sensitive to judder, so in general this isn't an issue.

Motion Interpolation
Motion Interpolation (30 fps)
Motion Interpolation (60 fps)

The UH6150 has a 60hz panel, and is able to interpolate 30 fps content. This is a good result for those who enjoy a litte bit of the soap opera effect (motion interpolation).

Input Lag
1080p @ 60Hz
16.6 ms
1080p With Interpolation
71.7 ms
1080p @ 60Hz Outside Game Mode
62.1 ms
1080p @ 60Hz @ 4:4:4
65.6 ms
4k @ 60Hz
16.7 ms
4k @ 60Hz @ 4:4:4
62.5 ms
4k @ 60Hz + HDR
10.5 ms
4k @ 60Hz @ 4:4:4 + 8 bit HDR

The input lag depends a lot on your use. For SDR console gaming the lag is quite low, which is good. Unfortunately swapping the input icon to 'PC' in order to support chroma subsampling for PC use significantly increases the input lag. Enabling HDR also makes the TV a bit less responsive.

Update 01/10/2017: The UH6150 just got a new update (04.30.82) that added a new 'HDR Game' mode and it greatly upgraded the performance of this TV. As you can see, the input lag in 'HDR Game' mode is now at 10.5ms, which is very good, even for the more hardcore gamers out there. Note that input lag under game mode with a 1080p and 4k resolution also got cut by half of what it was before.

Supported Resolutions
1080p @ 60Hz @ 4:4:4
1080p @ 120Hz
4k @ 30Hz @ 4:4:4
4k @ 60Hz
4k @ 60Hz @ 4:4:4

To support a high bandwidth signal such as 4k @ 60Hz @ 4:4:4, it is necessary to enable 'HDMI Ultra HD Deep Color' and in some cases the TV will prompt you to do this automatically. Unfortunately the RGBW pixel structure results in some strange artifacts with PC use. Small vertical lines such as those visible in text can appear smeared or unclear. This can be seen in the comparison chroma images below.

UH6150 chroma subsampling

X750D chroma subsampling

Side Inputs

Rear Inputs

Total Inputs
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

Inputs Specifications
Dolby Vision
5.1 Passthrough ARC Dolby Digital
5.1 Passthrough ARC DTS
5.1 Passthrough Optical Dolby Digital
5.1 Passthrough Optical DTS
HDMI 2.0 Full Bandwidth Yes
ARC Yes (HDMI 3)
USB 3 No
HDCP 2.2 Yes (HDMI 1,2,3)
Variable Analog Audio Out No

Sound Quality
Sound Quality
Frequency Response
Std. Dev. @ 70
4.34 dB SPL
Std. Dev. @ 80
5.88 dB SPL
Std. Dev. @ Max
7.73 dB SPL
85.5 dB SPL
Low-end Cutoff
84.76 Hz

Average performance. Frequency response is decent at lower volumes, however pumping and compression will be present under heavier loads. This TV produces a good amount of bass at lower volumes, but the it can't get very loud partly due to its inability to produce low frequencies at higher volumes.

Sound Quality
Total Harmonic Distortion
Distortion @ 70
Distortion @ 80
Distortion @ Max

Poor harmonic distortion performance. This TV produces moderately high amounts of harmonic distortion even at lower volumes. Unlike most other TVs, there is not a rise in distortion at maximum volume but that's because this TV barely gets louder than 85 dB SPL.

Smart Features
Smart Features

The LG Content Store provides access to the most popular apps such as Netflix and Amazon Video. Although there isn't as much variety as some other app stores such as the Android Play store, the quality of the LG apps is very good and they are generally very stable.

Smart Features
Smart OS WebOS 3.0

The UH6150 has the same WebOS 3.0 smart platform as the other 2016 LG TVs. It is one of the best options available at the moment due to the ease of use, responsiveness and stability. It comes with the most popular media apps pre-installed such as Netflix, Amazon Video and YouTube. It also provides access to the LG Content Store for additional content. The platform is very intuitive to use, and works well. It also allows playing files such as photos and videos directly from the USB port.

Smart Features

Smart Features
TV Controls

The controls are located below the LG logo on the front of the TV. They are quite easy to use, with just a single button that can be pushed in 4 directions. Provides access to basic functions such as controlling the volume and power. This photo was taken from the back of the TV.

Smart Features
Remote Basic

A basic remote is included with the TV. This is the same remote as found in other low-mid range LG TVs such as the UH6100. The model number is AKB74915305.

Smart Features
In The Box

  • Manual
  • Batteries
  • Remote
  • Cable management strap

Smart Features
Power Consumption 67 W
Power Consumption (Max) 94 W
Firmware 04.30.40

Differences Between Sizes and Variants

We tested the 55" (55UH6150). Due to the unusual RGBW ADS panel found in the 55" model we reviewed, we don't expect our review to be valid for the 60" (60UH6150) and 65" (65UH6150).

One of our readers has sent a photo of the 60" model's pixels, which can be seen here. This is an RGBW IPS panel, different from the 55" model we reviewed. Expect a slightly more narrow viewing angle, slightly higher contrast and more motion blur.

If anyone has more information on these other sizes, please contact us at A photo of the pixels would help us to identify the type of panel found in the other variants.

If someone comes across a different type of panel or if their LG UH6150 doesn't correspond to our review, let us know and we will update the review.

Size Model
55" 55UH6150
60" 60UH6150
65" 65UH6150

Compared to other TVs

Comparison picture

Top left: Hisense H8C (50H8C). Bottom left: Samsung KU6300 (UN55KU6300). Middle: LG UH6150 (55UH6150). Top right: TCL US5800 (55US5800). Bottom right: Sony X700D (XBR55X700D).  Unlike our other photographs, this picture wasn't taken under a controlled environment, so do not draw conclusions from it.

The LG UH6150 does perform very well in some areas, such as the motion performance image accuracy at an angle, but is hard to recommend due to a few flaws such as the the very low contrast ratio. In the same price range there is significant competition, so keep this in mind when viewing our recommendations below.



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