LG UK6300 TV REVIEW

Usage Ratings - Version 1.3
7.1
Mixed Usage
Value for price beaten by
: TCL 4 Series 2019
5.9
Movies
7.7
TV Shows
7.4
Sports
7.9
Video Games
5.6
HDR Movies
7.3
HDR Gaming
8.0
PC Monitor
This TV was replaced by the LG UM6900

Type : LED
Sub-Type
:
IPS
Resolution : "4k"

The LG UK6300 is a decent RGBW IPS TV with wide viewing angles, so it remains accurate when viewed at an angle. It also has low input lag so feels responsive. Unfortunately, when viewed in a dark room, blacks appear gray due to the low native contrast ratio, but when viewed in a bright room, this isn't noticeable. The out of the ordinary "RGBW" pixel structure also can cause smaller details and straight lines to lose sharpness, especially when used as a PC monitor.

Pros
  • Feels responsive with low input lag
  • Short blur trail
Cons
  • Blacks appear gray in a dark room
  • Less accurate RGBW pixel structure

Test Results
Design 6.5
Picture Quality 6.8
Motion 6.9
Inputs 9.5
Sound Quality 6.1
Smart Features 7.8
  1. Update 3/4/2019: The VESA mount was incorrectly listed as 400x400. It is actually 200x200.
  2. Update 2/28/2019: Converted to Test Bench 1.3. Learn more about our versioned test bench system here.

Check Price

6.5

Design

Curved : No

The design of the 2018 UK6300 LED TV is very basic. It is a very functional design with no serious deficiencies, but it won't be the center of attention in a room. Some of the rear-facing inputs may be difficult to access when wall mounted, and if a component connection is required it is impossible to mount the TV flush to the wall. There is no cable management.

Stand

The stand is almost the full width of the TV and is identical to the UJ6300 from last year. It is made of plastic and supports the TV well.

Footprint of the 55" TV stand: 33.3" x 8.6"

Back
Wall Mount : VESA 200x200

The back of the TV is very basic. There is no cable management. It is nearly identical to the UJ6300 from last year. Some of the inputs face out the back of the TV, which may be difficult to access if wall mounted.

Update 03/04/2019: The VESA mount was incorrectly listed as 400x400, it is actually 200x200 on the 43" model.

Borders
Borders : 0.75" (1.9 cm)

The borders of the TV are thicker than on high-end models.

Thickness
Max Thickness : 3.19" (8.1 cm)

The TV is quite thick and will stick out from the wall if mounted.

Temperature
Maximum Temperature
:
93 °F (34 °C)
Average Temperature
:
88 °F (31 °C)

The TV is fairly cool. There are a few warm spots along the back but they are barely warm to the touch.

6.0 Build Quality

Decent build quality on the LG UK6300. Nothing stands out as exceptionally good, but there is nothing worrisome either.

6.8

Picture Quality

The 2018 LG UK6300 LED TV has decent picture quality. It has a limited native contrast ratio and poor black screen uniformity, so true dark room viewing is not the greatest. It has great reflection handling, but the limited brightness means it can't effectively overcome glare in a very bright room. It has decent gray uniformity and a wide viewing angle, great for sports lovers who like to have friends over for the big game. Out of the box color accuracy isn't great, and the most accurate picture mode Expert (Dark Room) is also the dimmest. The less accurate RGBW pixel structure causes some artifacts, this is especially noticeable when used as a PC monitor.

6.1 Contrast
Native Contrast
:
1096 : 1
Contrast with local dimming
:
N/A

Mediocre native contrast ratio. Blacks are not truly black, and dark room viewing is less than ideal, especially taking into account the black uniformity results.

The contrast ratio is slightly worse than last year's UJ6300.

Note: The 50" model available in some areas has a VA panel, which we expect to have a higher native contrast ratio.

0 Local Dimming
Local Dimming
:
No
Backlight
:
Direct

The UK6300 does not have a local dimming feature. This video is provided for reference only.

5.9 SDR Peak Brightness
SDR Real Scene Peak Brightness
:
191 cd/m²
SDR Peak 2% Window
:
187 cd/m²
SDR Peak 10% Window
:
198 cd/m²
SDR Peak 25% Window
:
198 cd/m²
SDR Peak 50% Window
:
198 cd/m²
SDR Peak 100% Window
:
198 cd/m²
SDR Sustained 2% Window
:
186 cd/m²
SDR Sustained 10% Window
:
197 cd/m²
SDR Sustained 25% Window
:
198 cd/m²
SDR Sustained 50% Window
:
197 cd/m²
SDR Sustained 100% Window
:
197 cd/m²
SDR ABL
:
0.001

Mediocre peak real scene with the more accurate Expert (Dark Room) picture mode. There is almost no variation depending on content.

For a brighter room, the Standard picture mode with our recommended settings and a W30 color temperature is better, peak brightness is 286 cd/m². In Vivid mode with the default settings, the UK6300 is much brighter at 364 cd/m², although a lot of color accuracy is lost in that mode.

It is a bit brighter than the UJ6300, especially when the other picture modes are used.

6.0 HDR Peak Brightness
HDR Real Scene Peak Brightness
:
296 cd/m²
HDR Peak 2% Window
:
223 cd/m²
HDR Peak 10% Window
:
315 cd/m²
HDR Peak 25% Window
:
313 cd/m²
HDR Peak 50% Window
:
312 cd/m²
HDR Peak 100% Window
:
311 cd/m²
HDR Sustained 2% Window
:
222 cd/m²
HDR Sustained 10% Window
:
312 cd/m²
HDR Sustained 25% Window
:
311 cd/m²
HDR Sustained 50% Window
:
310 cd/m²
HDR Sustained 100% Window
:
308 cd/m²
HDR ABL
:
0.023

Mediocre HDR peak brightness. The LG UK6300 is not bright enough to overcome glare in a bright room, but due to the poor black uniformity, it is not well suited to a very dark room. Like with SDR content, small highlights in some scenes do not really pop, brightness is very similar regardless of content.

7.1 Gray Uniformity
50% Std. Dev.
:
4.761 %
50% DSE
:
0.201 %
5% Std. Dev.
:
0.597 %
5% DSE
:
0.081 %

Decent gray uniformity. There is some dirty screen effect near the center, but it is not too noticeable when watching sports. The edges of the LG are noticeably dimmer than the rest of the TV and there are some dark vertical bands.

7.4 Viewing Angle
Color Washout
:
24 °
Color Shift
:
70 °
Brightness Loss
:
29 °
Black Level Raise
:
70 °
Gamma Shift
:
40 °

Mediocre viewing angle but better than almost all VA TVs. Black levels stay accurate regardless of angle, but colors shift noticeable at moderate angles.

Note: The 50" model has a VA panel, which we expect to have a worse viewing angle.

4.0 Black Uniformity
Native Std. Dev.
:
3.324 %
Std. Dev. w/ L.D.
:
N/A

Poor black uniformity on the UK6300. There is no local dimming feature, and there is clouding across the entire screen when displaying the test cross. The edges of the screen are darker than the rest of the TV and there are vertical bands visible throughout.

8.5 Reflections
Screen Finish
:
Semi-gloss
Total Reflections
:
3.2 %
Indirect Reflections
:
0.8 %

The UK6300 has good reflection handling. The semi-gloss screen diffuses direct reflections across the screen. The screen is not very effective at overcoming glare.

6.4 Pre Calibration
White Balance dE
:
5.16
Color dE
:
3.09
Gamma
:
2.16
Color Temperature
:
6444 K
Picture Mode
:
Expert (Dark Room)
Color Temp Setting
:
Warm 2
Gamma Setting
:
2.2

Mediocre color accuracy out of the box. The Expert (Dark Room) picture mode has the most accurate colors. The white balance and color balance dE are high enough that most people would notice it. The gamma curve is mostly flat, and not too far off from our 2.2 target.

9.5 Post Calibration
White Balance dE
:
0.17
Color dE
:
1.27
Gamma
:
2.19
Color Temperature
:
6502 K
White Balance Calibration
:
20 point
Color Calibration
:
Yes
Auto-Calibration Function
:
No

Calibration was long, but very effective. White balance is almost perfect, and color dE is low enough that most people won't be able to see any inaccuracies. Gamma follows the target curve almost perfectly, and color temperature is almost perfect.

You can see our recommended settings here.

8.0 480p Input

Upscaling of low resolution content such as DVDs is good.

8.0 720p Input

720p content including cable TV looks good. There are no obvious artifacts or softening of the image.

9.0 1080p Input

1080p content like from a Blu-ray or non-4k games looks good.

8.0 4k Input

The less accurate RGBW pixel structure results in some artifacts, producing results similar to the UH6500 as can be seen here. This is especially noticeable when using the UK6300 as a PC Monitor.

7.0 Color Gamut
Wide Color Gamut
:
No
DCI P3 xy
:
77.44 %
DCI P3 uv
:
83.64 %
Rec 2020 xy
:
55.65 %
Rec 2020 uv
:
61.28 %

Standard color gamut, only good enough for SDR. See our recommended settings for the most accurate colors here.

The Expert (Dark Room) EOTF follows our curve perfectly, and the brightness rolls off gently as the TV approaches its peak brightness.

The PC and Game EOTF curves follow the input closely but are under the curve a bit. In these modes, the brightness rolls off gently at the peak brightness of the TV, so there is less clipping.

Update 06/29/2018: The DCI P3 xy and DCI P3 uv results were swapped when entering the data. This has now been fixed, and the score and performance are unchanged.

4.8 Color Volume
Normalized DCI P3 Coverage ITP
:
56.1 %
10,000 cd/m² DCI P3 Coverage ITP
:
20.2 %
Normalized Rec 2020 Coverage ITP
:
40.1 %
10,000 cd/m² Rec 2020 Coverage ITP
:
14.2 %

Poor color volume on the UK6300, similar to the UJ6300. The TV's RGBW structure cannot produce colors as bright as pure white. It also cannot produce very good dark colors.

8.4 Gradient
Color Depth
:
10 Bit
Red (Std. Dev.)
:
0.090 dE
Green (Std. Dev.)
:
0.116 dE
Blue (Std. Dev.)
:
0.081 dE
Gray (Std. Dev.)
:
0.105 dE

There is small banding throughout our gradient test, especially in grayscale and the darker greens. Real-world tests show some banding in movies with large areas of similar colors, like the outside shots in The Martian.

5.1 Temporary Image Retention
IR after 0 min recovery
:
2.88 %
IR after 2 min recovery
:
0.42 %
IR after 4 min recovery
:
0.17 %
IR after 6 min recovery
:
0.00 %
IR after 8 min recovery
:
0.00 %
IR after 10 min recovery
:
0.00 %

The LG UK6300 suffers from image retention, and it is quite noticeable with our test image. These results are disappointing, almost as bad as last year's UJ6300. These results are among the worst image retention of any TV we have tested.

10 Permanent Burn-In Risk
Permanent Burn-In Risk
:
No

Although some IPS panels can suffer from temporary image retention, this doesn't appear to be permanent as the IPS panel in our long-term test appear immune.

Pixels
6.9

Motion

The LG UK6300 has decent motion handling. It has a good pixel response time, which helps reduce motion trail. The 120 Hz backlight uses PWM to adjust the intensity, which causes flicker, and there is no option to reduce the flicker frequency. It can interpolate low frame rate content, but since it is only a 60 Hz panel it can't interpolate frames that are already 60 Hz. It is judder-free when playing native 24p content, but when playing 24 fps content through a cable box at 60p or 60i, there is judder.

7.9 Response Time
80% Response Time
:
7.9 ms
100% Response Time
:
15.0 ms

The response time is good. There is some overshoot with the 0-20% slide which causes a much higher response time on dim scenes. There is very little motion trail.

4.0 Flicker-Free
Flicker-Free
:
No
PWM Dimming Frequency
:
120 Hz

The TV uses PWM to dim the backlight, and there is flicker at all backlight levels. This flicker helps to clear up motion a little, but results in duplications in fast moving objects.

The 'Standard' picture mode is brighter. In this mode the backlight stays on longer, as shown in this plot.

5.4 Black Frame Insertion (BFI)
Optional BFI
:
No
Min Flicker for 60 fps
:
120 Hz
60 Hz for 60 fps
:
No
120 Hz for 120 fps
:
N/A
Min Flicker for 60 fps in Game Mode
:
120 Hz

Same as the UJ6300, there is no option to reduce the flicker frequency to 60Hz.

7.0 Motion Interpolation
Motion Interpolation (30 fps)
:
Yes
Motion Interpolation (60 fps)
:
No

The LG UK6300 can interpolate lower frame rate content up to 60fps. As this is a 60Hz panel, it can't interpolate 60fps content. When motion interpolation is enabled there are visible artifacts.

7.7 Stutter
Frame Hold Time @ 24 fps
:
26.7 ms
Frame Hold Time @ 60 fps
:
1.7 ms

The LG UK6300 is good at displaying content without stutter. 24p movies have less visible stutter, especially with wide-panning shots.

7.8 24p Judder
Judder-Free 24p
:
Yes
Judder-Free 24p via 60p
:
No
Judder-Free 24p via 60i
:
No
Judder-Free 24p via Native Apps
:
Yes

Only 24p content played from a true 24p source like a Blu-ray player are judder free. The UK6300 can't remove judder from 24p sources played from a 60p/60i source like a cable box.

To play 24p movies without judder when playing from a Blu-ray player, the 'Real Cinema' setting must be enabled.

0 Variable Refresh Rate
Native Refresh Rate
:
60 Hz
Variable Refresh Rate
:
No
4k VRR Maximum
:
N/A
4k VRR Minimum
:
N/A
1080p VRR Maximum
:
N/A
1080p VRR Minimum
:
N/A
1440p VRR Maximum
:
N/A
1440p VRR Minimum
:
N/A
VRR Supported Connectors
:
N/A

The LG 43UK6300 does not support any of the variable refresh rate technologies like Freesync.

9.5

Inputs

The LG UK6300 supports most common input resolutions without issue. Game mode is able to effectively bypass almost all processing by the TV, and it has exceptionally low input lag across all resolutions as long as game mode is used. With interpolation enabled or outside of game mode the input lag is very high.

9.9 Input Lag
1080p @ 60 Hz
:
11.5 ms
1080p @ 60 Hz Outside Game Mode
:
134.5 ms
1440p @ 60 Hz
:
N/A
4k @ 60 Hz
:
11.8 ms
4k @ 60 Hz + 10 bit HDR
:
11.3 ms
4k @ 60 Hz @ 4:4:4
:
12.8 ms
4k @ 60 Hz Outside Game Mode
:
134.2 ms
4k @ 60 Hz With Interpolation
:
134.0 ms
8k @ 60 Hz
:
N/A
1080p @ 120 Hz
:
N/A
1440p @ 120 Hz
:
N/A
4k @ 120 Hz
:
N/A
1080p with Variable Refresh Rate
:
N/A
1440p with VRR
:
N/A
4k with VRR
:
N/A
8k with VRR
:
N/A
Auto Low Latency Mode (ALLM)
:
No

Extraordinary low input lag, as long as the 'Game' Picture Mode is selected. For use as a PC Monitor, it is recommended to set the input label to 'PC', and use the'Game' Picture Mode for the lowest input lag possible.

Chroma 4:4:4 only works properly when the input label is set to 'PC' with RGB color; it doesn't display correctly with YCbCr.

7.5 Supported Resolutions
1080p @ 60 Hz @ 4:4:4
:
Yes
1080p @ 120 Hz
:
No
1440p @ 60 Hz
:
No
1440p @ 120 Hz
:
No
4k @ 60 Hz
:
Yes
4k @ 60 Hz @ 4:4:4
:
Yes
4k @ 120 Hz
:
No
8k @ 30 Hz or 24 Hz
:
No
8k @ 60 Hz
:
No

Most of the common input resolutions are supported with issue. Like most LG TVs, the input label has to be set to 'PC' for chroma 4:4:4 support. For 4:4:4 to work properly, RGB colors must be used. The less accurate RGBW pixel structure causes artifacts when used as a PC Monitor.

For 4k 60Hz, HDMI Ultra HD Deep Color must be enabled in the Additional Settings menu for the input used.

4k HDR does not work properly when in PC mode, colors appear washed out.

Input Photos
Total Inputs
HDMI : 3
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

There is a single shared component/composite input on the back of the TV.

Inputs Specifications
HDR10
:
Yes
HDR10+
:
No
Dolby Vision
:
No
HLG
:
Yes
3D
:
No
HDMI 2.0 Full Bandwidth
:
Yes (HDMI 1,2,3)
HDMI 2.1
:
No
CEC : Yes
HDCP 2.2 : Yes (HDMI 1,2,3)
USB 3.0
:
No
Variable Analog Audio Out : No
Wi-Fi Support : Yes (2.4 GHz, 5 GHz)
Audio Passthrough
ARC
:
Yes (HDMI 2)
eARC support
:
No
Dolby Atmos via TrueHD via eARC
:
No
DTS:X via DTS-HD MA via eARC
:
No
5.1 Dolby Digital via ARC
:
Yes
5.1 DTS via ARC
:
Yes
5.1 Dolby Digital via Optical
:
Yes
5.1 DTS via Optical
:
Yes
6.1

Sound Quality

The LG UK6300 has a mediocre sound. This TV doesn't get very loud and doesn't have a lot of bass either, but it produces clear dialogs and has a decent distortion performance. For a better sound, a dedicated speaker setup or soundbars are recommended.

5.9 Frequency Response
Low-Frequency Extension
:
100.79 Hz
Std. Dev. @ 70
:
3.86 dB
Std. Dev. @ 80
:
4.43 dB
Std. Dev. @ Max
:
5.90 dB
Max
:
83.7 dB SPL
Dynamic Range Compression