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Reviewed on Sep 19, 2018 , Simon Barbier, Yannick Khong

LG 32UD99-W
MONITOR REVIEW

Usage Ratings - Version 1.0

Test Benches:

  • 1.0: Fall 2017
8.0
Mixed Usage
Score components:
Size : 32 "
Resolution : 3840x2160
Refresh Rate : 60 Hz
LCD Type
What it is: Type of LCD technology used by the monitor.
When it matters: Different technologies have different viewing angle properties.
:
IPS
Variable Refresh Rate
What it is: Feature that allows the monitor to synchronize its refresh rate with the input device's output and reduces stuttering and screen tearing.
When it matters: Almost every usage, but is most noticeable in gaming where constant fluctuation in framerate cause distracting artifacts.
:
FreeSync

The LG 32UD99 is a very good IPS monitor with wide viewing angles, excellent low input lag, and a fast response time. It supports FreeSync but has very few additional gaming features, and some gamers will be disappointed by the limited 60 Hz refresh rate. It supports HDR, but its effectiveness is limited by the lack of a wide color gamut and mediocre peak brightness.

Test Results
Design 7.0
Picture Quality 7.5
Motion 8.0
Inputs 9.1
Pros
  • Image remains accurate at an angle
  • Excellent low input lag
  • Fast response time and FreeSync support
Cons
  • Limited HDR performance
  • Some gamers may be disappointed by the limited 60 Hz refresh rate

Check Price

7.0

Design

Score components: Subjectively assigned
LG 32UD99 Design Picture
Curved : No
Curve radius : N/A
Weight (without stand) : 14.3lbs (6.5 kg)
Weight (with stand) : 18.6lbs (8.4 kg)

The LG 32UD99-W has a decent design. It has decent ergonomics, but can't swivel, and has a limited tilt range. The monitor wobbles a lot, even while you are just typing. The stand is wide and prevents large objects from being placed in front of the monitor. There is a large external power adapter for the monitor, and it has a short cable that could cause some placement issues.

Stand
LG 32UD99 Stand picture
Width : 15.7" (40.0 cm)
Depth : 10.8" (27.5 cm)

The stand is large, and the curved shape prevents you from placing larger objects directly in front of the monitor. The monitor wobbles significantly, even typing on a nearby keyboard causes the screen to shake noticeably.

6.5 Ergonomics
What it is: How much the position of the screen can be adjusted to match the viewing preference of the user.
When it matters: All usages, but especially office and gaming use.
Score components:
  • 46% Height Adjustment
  • 18% Switch portrait/landscape
  • 18% Swivel Range
  • 18% Tilt Range
LG 32UD99 Ergonomics picture
Height Adjustment : 4.3" (11.0 cm)
Switch portrait/landscape : Yes
Swivel Range : N/A
Tilt Range : -20° to 5°

Decent ergonomics. The stand allows you to adjust the height of the monitor, and it can tilt a bit. The monitor can also be adjusted from a portrait to landscape orientation. The stand doesn't swivel.

Back
LG 32UD99 Back picture
Wall Mount : VESA 100x100

The back is a uniform glossy white finish. There is a small loop for cable management, but it isn't very effective at keeping a clean desk.

Borders
LG 32UD99 Borders picture
Borders : 0.3" (0.8 cm)

The LG 32UD99 has thin borders that look good, especially if you plan on mounting two or more of them in a multi-monitor setup.

Thickness
LG 32UD99 Thickness picture
Thickness (with stand) : 7.3" (18.6 cm)
Thickness (without stand) : 1.7" (4.2 cm)

You can reduce the thickness of the stand by 0.6" (1.5 cm) if you remove the cable management clip.

6.5 Build Quality
What it is: How well built and sturdy the monitor is, and how good the materials used to build it are.
When it matters: All usages.
Score components: Subjectively assigned
LG 32UD99 Build Quality picture

Decent build quality. The entire monitor including the stand are made of plastic.

The LG 32UD99-W delivers good picture quality. It has a decent contrast ratio and decent black uniformity, better than most IPS monitors we have reviewed so far. It has very good SDR peak brightness, and good reflection handling, so it performs well in a bright office. The monitor has decent horizontal viewing angles, good for sharing work with nearby coworkers. Colors look great, with the excellent color gamut and excellent color volume in SDR, but, unfortunately,  it doesn't completely cover the Adobe RGB color space and it doesn't have a wide color gamut for HDR.

6.8 Contrast
What it is: Brightness difference between white and black. This is the main component of picture quality.
When it matters: Always, but especially when watching dark scenes.
Score components:
LG 32UD99 Checkerboard Picture
Native Contrast
What it is: Ratio of the white brightness divided by the blacks measured on our checkerboard test pattern with a white target of 100 cd/m².
When it matters: Dark scenes in a dark room.
Good value: > 3,000
Noticeable difference: 500
:
1613 : 1
Contrast with local dimming
What it is: Ratio of the white brightness divided by the blacks measured on our checkerboard test pattern with local dimming turned on (maximum) with a white target of 100 cd/m².
When it matters: Dark scenes in a dark room.
Good value: > 3,000
Noticeable difference: 500
:
N/A

Decent contrast ratio, better than usual for an IPS monitor.

0 Local Dimming
What it is: The lights behind the LCD layer adapt to the picture displayed, improving the contrast ratio.
When it matters: Dark scenes viewed in a dark room.
Score components: Subjectively assigned
Local Dimming
What it is: Whether it has a feature that controls the LEDs behind the LCD layer, to match the picture and darkens the dark portion of it.
When it matters: On LED TVs only. Dark scenes viewed in a dark room.
:
No
Backlight
What it is: Configuration of the lights of the backlight.
When it matters: Effectiveness of the local dimming.
Good value: Full-array/direct lighting is better for local dimming. As for the uniformity of the screen, it depends on the implementation. Some edge-lit monitors have more uniform blacks than some full-array monitors.
:
Edge

There is no local dimming feature. The video is provided for reference only.

8.0 SDR Peak Brightness
What it is: How bright the screen can get. Measured with local dimming and with SDR content.
When it matters: Bright living rooms; bright objects; SDR content.
SDR Real Scene
What it is: The maximum luminosity the TV can obtain while playing a movie or while watching a TV show. Our Real Scene was selected to represent a more regular movie condition. All measurements are made with the TV set to be as bright as possible, but with a 6500k white. Measured with local dimming on, max backlight and with an SDR signal. Scene: here.
When it matters: When watching movies and TV shows in SDR.
:
352 cd/m²
SDR Peak 2% Window
What it is: The maximum luminosity, even if only maintained for a short time, of a white square covering 2% of the screen, with the monitor set to be as bright as possible. Measured with local dimming and over SDR signal.
When it matters: Bright highlights, present on screen for a short time
:
364 cd/m²
SDR Peak 10% Window
What it is: The maximum luminosity, even if only maintained for a short time, of a white square covering 10% of the screen, with the monitor set to be as bright as possible. Measured with local dimming and over SDR signal.
When it matters: Bright objects, present on screen for a short time
:
364 cd/m²
SDR Peak 25% Window
What it is: The maximum luminosity, even if only maintained for a short time, of a white square covering 25% of the screen, with the monitor set to be as bright as possible. Measured with local dimming and over SDR signal.
When it matters: When watching in a bright room.
:
364 cd/m²
SDR Peak 50% Window
What it is: The maximum luminosity, even if only maintained for a short time, of a white square covering 50% of the screen, with the monitor set to be as bright as possible. Measured with local dimming and over SDR signal.
When it matters: When watching in a bright room.
:
364 cd/m²
SDR Peak 100% Window
What it is: The maximum luminosity, even if only maintained for a short time, of a white square covering 100% of the screen, with the monitor set to be as bright as possible. Measured with local dimming and over SDR signal.
When it matters: When watching in a bright room.
:
363 cd/m²
SDR Sustained 2% Window
What it is: The lowest maximum luminosity (usually after it has stabilized) of a white square covering 2% of the screen, with the monitor set to be as bright as possible. Measured with local dimming and over SDR signal.
When it matters: Bright highlights, persistent during a scene.
:
364 cd/m²
SDR Sustained 10% Window
What it is: The lowest maximum luminosity (usually after it has stabilized) of a white square covering 10% of the screen, with the monitor set to be as bright as possible. Measured with local dimming and over SDR signal.
When it matters: Bright objects, persistent during a scene.
:
364 cd/m²
SDR Sustained 25% Window
What it is: The lowest maximum luminosity (usually after it has stabilized) of a white square covering 25% of the screen, with the monitor set to be as bright as possible. Measured with local dimming and over SDR signal.
When it matters: When watching in a bright room.
:
364 cd/m²
SDR Sustained 50% Window
What it is: The lowest maximum luminosity (usually after it has stabilized) of a white square covering 50% of the screen, with the monitor set to be as bright as possible. Measured with local dimming and over SDR signal.
When it matters: When watching in a bright room.
:
364 cd/m²
SDR Sustained 100% Window
What it is: The lowest maximum luminosity (usually after it has stabilized) of a white square covering 100% of the screen, with the monitor set to be as bright as possible. Measured with local dimming and over SDR signal.
When it matters: When watching in a bright room.
:
363 cd/m²
SDR ABL
What it is: The standard deviation of the SDR sustained brightness, after linearizing for noticeable differences in luminosity
When it matters: Content with large bright areas, such as for PC or video game use, and sports such as hockey
:
0.000

Very good SDR brightness. The LG 32UD99 maintains consistent brightness across all scenes. This is almost the same as the LG 27UK650.

6.3 HDR Peak Brightness
What it is: How bright the screen can get. Measured with local dimming and with HDR content.
When it matters: HDR content
HDR Real Scene : 312 cd/m²
HDR Peak 2% Window : 415 cd/m²
HDR Peak 10% Window : 394 cd/m²
HDR Peak 25% Window : 414 cd/m²
HDR Peak 50% Window : 403 cd/m²
HDR Peak 100% Window : 528 cd/m²
HDR Sustained 2% Window : 330 cd/m²
HDR Sustained 10% Window : 331 cd/m²
HDR Sustained 25% Window : 332 cd/m²
HDR Sustained 50% Window : 332 cd/m²
HDR Sustained 100% Window : 330 cd/m²
HDR ABL : 0.000

Mediocre HDR brightness. Large bright scenes are able to get much brighter for very brief periods of time, but the LG 32UD99-W can't maintain it for more than a few seconds. Small highlights in some scenes don't stand out.

7.1 Horizontal Viewing Angle
What it is: Color accuracy when viewed from the side.
LG 32UD99 Horizontal Color Shift Picture
Color Shift from Left
What it is: Angle where the colors noticeable shift compared to when viewed from directly in front of the monitor. 0 ° means directly facing the monitor. Measurements are up to a maximum of 75 °.
When it matters: When sharing your monitor with people on your left
Good value: > 50°
Noticeable difference: 10°
:
38 °
Color Shift from Right
What it is: Angle where the colors noticeable shift compared to when viewed from directly in front of the monitor. 0 ° means directly facing the monitor. Measurements are up to a maximum of 75 °.
When it matters: When sharing your monitor with people on your right
Good value: > 50°
Noticeable difference: 10°
:
35 °
LG 32UD99 Horizontal Brightness Picture
Brightness from Left
What it is: Angle where the brightness drops to 50% of the brightness directly in front of the monitor. 0 ° means directly facing the monitor. Measurements are up to a maximum of 75 °.
When it matters: When sharing your monitor with people on your left.
Good value: > 50°
Noticeable difference: 10°
:
46 °
Brightness from Right
What it is: Angle where the brightness drops to 50% of the brightness directly in front of the monitor. 0 ° means directly facing the monitor. Measurements are up to a maximum of 75 °.
When it matters: When sharing your monitor with people on your right.
Good value: > 50°
Noticeable difference: 10°
:
43 °
LG 32UD99 Horizontal Black Level Picture
Black Level from Left
What it is: Angle where the black level drops to 50% of the black level directly in front of the monitor. 0 ° means directly facing the monitor. Measurements are up to a maximum of 75 °.
When it matters: When sharing your monitor with people on your right.
Good value: > 50°
Noticeable difference: 10°
:
75 °
Black Level from Right
What it is: Angle where the black level drops to 50% of the black level directly in front of the monitor. 0 ° means directly facing the monitor. Measurements are up to a maximum of 75 °.
When it matters: When sharing your monitor with people on your right.
Good value: > 50°
Noticeable difference: 10°
:
75 °
Curve Radius : N/A

Decent horizontal viewing angles. Black levels stay nearly constant at an angle. As you move farther off-axis the brightness decreases gradually and colors become more saturated. Up until a fairly wide angle, the screen remains accurate.

8.0 Vertical Viewing Angle
What it is: Color accuracy when viewed from the top or bottom.
LG 32UD99 Vertical Color Shift Picture
Color Shift from Below
What it is: Angle where the colors noticeable shift compared to when viewed from directly in front of the monitor. 0 ° means directly facing the monitor. Measurements are up to a maximum of 75 °.
When it matters: When looking at a monitor from below.
Good value: > 50°
Noticeable difference: 10°
:
29 °
Color Shift from Above
What it is: Angle where the colors noticeable shift compared to when viewed from directly in front of the monitor. 0 ° means directly facing the monitor. Measurements are up to a maximum of 75 °.
When it matters: When looking at a monitor when standing up.
Good value: > 50°
Noticeable difference: 10°
:
23 °
LG 32UD99 Vertical Brightness Picture
Brightness from Below
What it is: Angle where the brightness drops to 50% of the brightness directly in front of the monitor. 0 ° means directly facing the monitor. Measurements are up to a maximum of 75 °.
When it matters: When looking at a monitor from below.
Good value: > 50°
Noticeable difference: 10°
:
37 °
Brightness from Above
What it is: Angle where the brightness drops to 50% of the brightness directly in front of the monitor. 0 ° means directly facing the monitor. Measurements are up to a maximum of 75 °.
When it matters: When looking at a monitor while standing up.
Good value: > 50°
Noticeable difference: 10°
:
31 °
LG 32UD99 Vertical Black Level Picture
Black Level from Below
What it is: Angle where the black level drops to 50% of the black level directly in front of the monitor. 0 ° means directly facing the monitor. Measurements are up to a maximum of 75 °.
When it matters: When looking at a monitor from below.
Good value: > 50°
Noticeable difference: 10°
:
75 °
Black Level from Above
What it is: Angle where the black level drops to 50% of the black level directly in front of the monitor. 0 ° means directly facing the monitor. Measurements are up to a maximum of 75 °.
When it matters: When looking at a monitor while standing up.
Good value: > 50°
Noticeable difference: 10°
:
75 °

Excellent vertical viewing angles. There shouldn't be any issues if the LG 32UD99-W is VESA mounted above eye-level.

8.4 Gray Uniformity
What it is: Evenness of colors onscreen (not just gray).
When it matters: Solid colors. Sports, panning shots.
Score components:
LG 32UD99 50% Uniformity Picture
50% Std. Dev.
What it is: Average squared difference of pixels when displaying a mid 50% gray.
When it matters: Solid colors. Sports, panning shots.
Good value: < 2.5%
Noticeable difference: 1%
:
3.675 %
50% DSE
What it is: Dirty Screen Effect. High-frequency variance of uniformity. Dark spots on the screen.
When it matters: Solid colors. Sports, panning shots.
Good value: < 0.165%
Noticeable difference: 0.025%
:
0.119 %
LG 32UD99 5% Uniformity Picture
5% Std. Dev.
What it is: Average squared difference of pixels when displaying a mid 5% gray.
When it matters: Dark scenes.
Good value: < 1.15%
Noticeable difference: 1%
:
0.391 %
5% DSE
What it is: Dirty Screen Effect. High-frequency variance of uniformity. Dark spots on the screen.
When it matters: Dark scenes.
Good value: < 0.116%
:
0.061 %

Great gray uniformity. There is almost no discernible dirty screen effect in the center, which is great for browsing the web or playing sports games. The edges of the screen are a bit darker than the rest of the screen, but this shouldn't bother most people.

6.5 Black Uniformity
What it is: Evenness of blacks.
When it matters: Dark scenes viewed in a dark room.
Score components:
LG 32UD99 Native Black Uniformity Picture
Native Std. Dev.
What it is: Average of the squared difference of the blacks.
When it matters: Dark scenes viewed in a dark room.
Good value: <2%
Noticeable difference: 1%, but keep in mind that it varies a lot by unit, even of the same model; yours likely will not end up exactly like ours.
:
1.696 %
Std. Dev. w/ L.D.
What it is: Average of the squared difference of the blacks with Local Dimming enabled
When it matters: Dark scenes viewed in a dark room.
Good value: <2%
Noticeable difference: 1%, but keep in mind that it varies a lot by unit, even of the same model; yours likely will not end up exactly like ours.
:
N/A

Decent black uniformity, one of the best we have seen so far on any monitor, and better than any IPS monitor we have tested. There is some flashlighting visible around the edges of the screen, and this can be distracting when viewed in a dark room.

7.0 Pre Calibration
What it is: Monitor's color accuracy before a full calibration. The measurements are taken with out of the box 'factory setting'.
When it matters: All video on an uncalibrated TV. This represents most people's use cases.
Score components:
LG 32UD99 Pre Calibration Picture LG 32UD99 Pre Gamma Curve Picture LG 32UD99 Pre Color Picture
Picture Mode
What it is: The picture mode that was used to do the pre-calibration reading. We usually go for the picture mode that gives us the more control over all the picture quality setting.
:
Photo
Luminance
What it is: The luminance at which the pre-calibration reading was done. This represents the luminance of the monitor when it is at the factory default settings.
:
361 cd/m²
Luminance Settings
What it is: The luminance settings, often named 'Brightness' on monitors, usually range from 0 to 100.
:
18
Contrast Setting
What it is: The monitor contrast setting, usually ranging from 0 to 100.
:
70
RGB controls
What it is: This is the value for each color (red, green, and blue) used in the monitor internal RGB cuts/gains controls. If the monitor does not have an internal RGB cuts/gains controls, then the color temperature setting will be used instead, and the color temperature that gives us the best result will be used.
:
50-50-50
Color Temperature
What it is: The color temperature is a measure of the color of light. A colder color temperature (7000K) will look bluer and a warmer color temperature (4000K) will look yellower/redder. 6500K is the standard color for PC monitors and also for the sRGB color standard.
When it matters: When you care about color reproduction and accuracy.
Good value: 6500K
Noticeable difference: 400K
:
6680 K
White Balance dE
What it is: Average inaccuracy of shades of gray.
When it matters: Overall color temperature of all video.
Good value: < 3
Noticeable difference: 1
:
3.01
Color dE
What it is: Average inaccuracy of colors.
When it matters: All colors.
Good value: < 3
Noticeable difference: 1
:
3.82
Gamma
What it is: Brightness of shades of gray.
When it matters: Shadows.
Good value: Between 2.1 and 2.3 (our target is 2.2)
Noticeable difference: 0.1
:
2.09

Decent accuracy out of the box. The 'Photo' Picture Mode provided the most accurate results. White balance and color dE are high, to the point most enthusiasts would notice it but not the average user. Gamma doesn't follow the sRGB target, and most scenes appear brighter than they should. The color temperature is a bit cool, but not enough to bother most people.

9.6 Post Calibration
What it is: Monitor's color accuracy after a full calibration with a spectrophotometer.
When it matters: All graphics and video content on a monitor that has been professionally calibrated.
Score components:
LG 32UD99 Post Calibration Picture LG 32UD99 Post Gamma Curve Picture LG 32UD99 Post Color Picture
Picture Mode
What it is: The picture mode that was used to do the calibration reading. We usually go for the picture mode that gives us the more control over all the picture quality setting.
:
Custom
Luminance
What it is: The luminance at which the calibration was executed. We aim for a luminance level of 100 cd/m².
:
98 cd/m²
Luminance Settings
What it is: The luminance settings, often named 'Brightness' on monitors, usually range from 0 to 100.
:
18
Contrast Setting
What it is: The monitor contrast setting, usually ranging from 0 to 100.
:
70
RGB controls
What it is: This is the value for each color (red, green, and blue) used in the monitor internal RGB cuts/gains controls. If the monitor does not have an internal RGB cuts/gains controls, then the color temperature setting will be used instead, and the color temperature that gives us the best result will be used.
:
51-53-47
Color Temperature
What it is: The color temperature is a measure of the color of light. A colder color temperature (7000K) will look bluer and a warmer color temperature (4000K) will look yellower/redder. 6500K is the standard color for PC monitors and also for the sRGB color standard.
When it matters: When you care about color reproduction and accuracy.
Good value: 6500K
Noticeable difference: 400K
:
6543 K
White Balance dE
What it is: Average inaccuracy of shades of gray.
When it matters: Overall color temperature of all videos.
Good value: < 3
Noticeable difference: 1
:
0.65
Color dE
What it is: Average inaccuracy of colors.
When it matters: All colors.
Good value: < 3
Noticeable difference: 1
:
0.51
Gamma
What it is: Brightness of shades of gray.
When it matters: Shadows.
Good value: Between 2.1 and 2.3 (our target is 2.2)
Noticeable difference: 0.1
:
2.19

Excellent accuracy after calibration. We used the 'Custom' Picture Mode, as it provided the best settings for our calibration. After calibrating, white and color accuracy is nearly perfect. Gamma follows the input stimulus almost perfectly, and the color temperature is nearly spot-on our target.

You can download our ICC profile calibration here. We don't recommend using this profile, as the calibration values vary per individual unit, even for the same model, due to manufacturing tolerances.

9.1 SDR Color Gamut
What it is: The palette of colors the monitor can display
When it matters: General content consumption or production
Score components:
LG 32UD99 Color Gamut s.RGB Picture
s.RGB xy
What it is: Coverage of the s.RGB colorspace on CIE 1931 xy.
When it matters: Almost all content. Includes websites, standard windows environment and SDR movies
Good value: > 95%
Noticeable difference: 5%
:
99.5 %
LG 32UD99 Color Gamut ARGB Picture
Adobe RGB xy
What it is: Coverage of the Adobe RGB colorspace on CIE 1931 xy.
When it matters: Professional photography.
Good value: > 90%
Noticeable difference: 5%
:
83.5 %

s.RGB Picture Mode: Custom (calibrated)
Adobe RGB Picture Mode: Photo

Excellent SDR color gamut. Perfect coverage of the standard s.RGB color gamut. Adobe RGB coverage isn't as good, but it is better than the majority of monitors that we have reviewed so far, almost as good as the Samsung CHG90.

9.3 SDR Color Volume
What it is: How much of the SDR color spaces the monitor can reproduce
When it matters: General usage and SDR media creation
Score components:
LG 32UD99 s.RGB Color Volume ITP picture
s.RGB in ICtCp
What it is: How much of the s.RGB colorspace a monitor can display at different luminosity levels
When it matters: Most content, including web, SDR video games, and SDR media creation
:
97.7 %
LG 32UD99 Adobe RGB Color Volume ITP Picture
Adobe RGB in ICtCp
What it is: How much of the Adobe RGB colorspace a monitor can display at different luminosity levels, normalized to the monitor's peak brightness.
When it matters: Professional media creation
:
88.0 %

s.RGB Picture Mode: Custom
Adobe RGB Picture Mode: Photo

Excellent SDR color volume, one of the best we have tested so far. The LG 32UD99-W produces most colors well, but can't display very bright blues or very dark colors.

7.5 HDR Color Gamut
What it is: The monitor's ability to reproduce HDR color spaces
When it matters: HDR content consumption or media creation
Score components:
Wide Color Gamut
What it is: Whether the monitor can support wider color gamuts
When it matters: HDR content and media creation
:
No
LG 32UD99 Color Gamut DCI-P3 Picture
DCI P3 xy
What it is: Coverage of the DCI P3 colorspace on CIE 1931 xy
When it matters: When consuming or producing HDR content.
:
83.3 %
LG 32UD99 Color Gamut Rec.2020 Picture
Rec. 2020 xy
What it is: Coverage of the Rec.2020 colorspace on CIE 1931 xy.
When it matters: When consuming or producing HDR content.
Good value: > 90%
Noticeable difference: 5%
:
66.4 %

DCI P3 Picture Mode: HDR Standard
Rec. 2020 Picture Mode: HDR Standard

Good HDR color gamut. Great coverage of the more common DCI P3 color gamut, but the wider Rec. 2020 coverage is only decent, and just shy of our 67% threshold to be considered as having a wide color gamut. Not as good as the Samsung CHG70

6.7 HDR Color Volume
What it is: How much of the HDR color spaces a monitor can display at different luminosity levels.
When it matters: HDR content consumption and production. Includes streaming services, UHD Blu-rays and HDR games.
Score components:
LG 32UD99 P3 Color Volume ITP Picture
DCI-P3 in ICtCp
What it is: How much of the DCI-P3 colorspace a monitor can display at different luminosity levels, normalized to the monitor's peak brightness output.
When it matters: HDR content.
Good value: 80%
Noticeable difference: 5%
:
72.3 %
LG 32UD99 2020 Color Volume ITP Picture
Rec. 2020 in ICtCp
What it is: How much of the Rec. 2020 colorspace a monitor can display at different luminosity levels, normalized to the monitor's peak brightness output.
When it matters: HDR content.
Good value: 80 %
Noticeable difference: 5 %
:
60.8 %

DCI P3 Picture Mode: HDR Standard
Rec. 2020 Picture Mode: HDR Standard

Decent HDR color volume. The color volume is limited by the narrow color gamut, and it can't produce dark colors due to the contrast ratio.

8.2 Image Retention
What it is: How much a static image is retained on a monitor screen after a certain amount of time.
When it matters: When working or playing video games on your PC monitor.
LG 32UD99 Image Retention Picture
IR after 0 min recovery
What it is: Image retention measured right after the static image exposure, without recovery time.
When it matters: When changing use or right after changing the type of on screen content (i.e. stopping playing video game to watch a movie).
Good value: 0 is perfect.
Noticeable difference: 0.015%
:
0.07 %
IR after 2 min recovery
What it is: Image retention measured after a recovery time of 2 minutes.
When it matters: When changing use or right after changing the type of on screen content (i.e. stopping playing video game to watch a movie).
Good value: 0 is perfect
Noticeable difference: 0.015%
:
0.00 %
IR after 4 min recovery
What it is: Image retention measured after a recovery time of 4 minutes.
When it matters: When changing use or right after changing the type of on screen content (i.e. stopping playing video game to watch a movie).
Good value: 0 is perfect.
Noticeable difference: 0.015%
:
0.00 %
IR after 6 min recovery
What it is: Image retention measured after a recovery time of 6 minutes.
When it matters: When changing use or right after changing the type of on screen content (i.e. stopping playing video game to watch a movie).
Good value: 0 is perfect.
Noticeable difference: 0.015%
:
0.00 %
IR after 8 min recovery
What it is: Image retention measured after a recovery time of 8 minutes.
When it matters: When changing use or right after changing the type of on screen content (i.e. stopping playing video game to watch a movie).
Good value: 0 is perfect.
Noticeable difference: 0.015%
:
0.00 %
IR after 10 min recovery
What it is: Image retention measured after a recovery time of 10 minutes.
When it matters: When changing use or right after changing the type of on screen content (i.e. stopping playing video game to watch a movie).
Good value: 0 is perfect.
Noticeable difference: 0.015%
:
0.00 %

After displaying our high contrast test image for 10 minutes, there is a partial residual image for a few minutes. In normal use this shouldn't be very noticeable.

Some retention is visible in our 2 minute image, but it is below the detection threshold. Note that the image we take is overexposed and this should not be noticeable under normal usage.

9.7 Gradient
What it is: How finely levels of color can be displayed.
When it matters: Details in shadows, sky and skin tones. Matters more for HDR content.
Score components: Subjectively assigned
LG 32UD99 Gradient Picture
Color Depth
What it is: Number of bits per pixel to represent a specific color. Note: we consider 8-bit with dithering to be equivalent to 10-bit, as long as the 10-bit gradient looks smooth.
When it matters: HDR content like HDR video games or HDR UHD movies. Won't matter for regular Blu-ray movies, SDR video game or desktop environment content displayed from a Windows PC. Those are limited to 8-bit color.
Good value: 10-bit.
Noticeable difference: 1 bit.
:
10 Bit

Excellent gradients. There is some minor banding visible in all dark shades, but this shouldn't cause any issues under normal use.

10 Color Bleed
What it is: How much the color from one area of the screen affects the color in another area of the screen.
When it matters: All usages, but especially media creation.
Score components:
LG 32UD99 Color bleed horizontal
Pixel row error
What it is: The amount of bleed that appears across the screen horizontally.
When it matters: General usage of a PC monitor, can appear when browsing the web or with media creation like graphics.
Good value: <0.2%
Noticeable difference: 0.1%
:
0.001 %
LG 32UD99 Color bleed vertical
Pixel column error
What it is: Amount of color bleeding that appears across the screen vertically.
When it matters: Most uses of a PC monitor. Can appear while browsing the web or when editing images or graphics.
Good value: <0.2%
Noticeable difference: 0.1%
:
0.000 %

Excellent color control. There is no significant color bleed in any row/column.

7.5 Reflections
What it is: How much light is reflected by the TV.
When it matters: Bright rooms.
Score components: Subjectively assigned
LG 32UD99 Average room LG 32UD99 Average room off picture LG 32UD99 Bright room off picture

Decent reflection handling, similar to most monitors that we have reviewed.

8.0

Motion

Score components:

The LG 32UD99 has excellent motion handling. It has a fast response time that produces little motion blur, and a flicker-free backlight. It supports FreeSync, but the effectiveness is limited by the 60 Hz refresh rate. Unfortunately, it lacks an option to introduce flicker to further reduce motion blur.

8.8 Motion Blur
What it is: The performance of the pixel response time. Poor response time causes trails to follow moving objects. Response time is one of a few sources of motion blur.
When it matters: When there's fast movement on screen, such as during video games and sports.
Score components:
LG 32UD99 Motion Blur Picture LG 32UD99 Response Time Chart
80% Response Time
What it is: How quickly pixels can reach 80% of a full transition from one color to another.
When it matters: When there's fast movement on screen, such as during video games and sports.
Good value: < 8 ms
Noticeable difference: 4 ms
:
4.9 ms
100% Response Time
What it is: How quickly pixels can fully transition from one color to another.
When it matters: When there's fast movement on screen, such as during video games and sports.
Good value: < 20 ms
Noticeable difference: 10 ms
:
12.1 ms
Best Overdrive Setting
What it is: If the monitor has adjustable pixel overdrive settings, which one produces the best response time with minimal overshoot.
When it matters: When adjusting the monitor's settings to get the least possible motion blur.
:
Normal

Response Time Off
Response Time Slow
Response Time Normal
Response Time Fast

Excellent fast response time. The best Response Time setting is 'Normal'. There is a bit of overshoot in most transitions. With the 'Fast' setting, there is slightly worse overshoot but not much improvement in response time.

Most of the blur in the photo above is due to persistence.

7.5 Image Flicker
What it is: Luminosity pattern when displaying images
When it matters: Nearly all the time during PC monitor use, but especially during fast movement such as video games
LG 32UD99 Backlight Picture
Flicker-free : Yes
PWM Dimming Frequency
What it is: Flickering pattern at different luminosities.
When it matters: For people sensitive to flickering.
Good value: N/A or high frequencies (> 300 Hz). Frequencies that are multiples of 60Hz are better.
:
0 Hz
Black Frame Insertion (BFI)
What it is: Option to turn screen black between frames
When it matters: Reduces eye tracking blur in motion
Good value: Yes
:
No
BFI Maximum Frequency
What it is: Highest possible frequency of flickering pattern
When it matters: Reduces eye-tracking blur in motion
Good value: Matches the native refresh rate
Noticeable difference: 20 Hz
:
N/A
BFI Minimum Frequency
What it is: Lowest possible frequency of flickering pattern
When it matters: Reduces eye-tracking blur in motion
Good value: 60 Hz
Noticeable difference: 20 Hz
:
N/A

The backlight is flicker-free, the LG 32UD99 dims the display without introducing flicker. There is no option to introduce flicker to help reduce blur.

7.8 Refresh Rate
What it is: How frequently the monitor can refresh and show new frames, and whether it can vary its refresh rate in real time using technologies like G-sync and FreeSync.
When it matters: Mostly for gaming, but does provide a little better motion during normal usage.
Native
What it is: The frequency at which the monitor is capable of displaying images every second
When it matters: General usage, but better results are most important for gaming
Good value: >100 Hz
Noticeable difference: 15 Hz
:
60 Hz
Factory Overclock
What it is: The frequency at which the monitor's can be boosted to using its internal menu.
When it matters: Gaming and other usages where high frame rate content is consumed.
Good value: >100
Noticeable difference: 15
:
N/A
Variable Refresh Rate
What it is: Feature that allows the monitor to synchronize its refresh rate with the input device's output and reduces stuttering and screen tearing.
When it matters: Almost every usage, but is most noticeable in gaming where constant fluctuation in framerate cause distracting artifacts.
:
FreeSync
VRR Maximum
What it is: The maximum frequency covered by the Variable Refresh Rate feature of the monitor.
When it matters: Any time the VRR feature is enabled.
Good value: Matches Refresh rate
Noticeable difference: 10 Hz
:
60 Hz
VRR Minimum
What it is: The lowest frequency covered by the monitor's Variable Refresh Rate feature.
When it matters: When using the VRR feature of the monitor at lower frame rates.
Good value: 30 Hz
:
40 Hz
VRR Maximum With OC
What it is: The maximum frequency covered by the Variable Refresh Rate feature when the monitor's overclocking feature is used.
When it matters: When both the overclocking and VRR features are used.
Good value: Matching the overclocked refresh rate.
Noticeable difference: 10 hz
:
N/A
VRR Supported Connectors : DisplayPort, HDMI

FreeSync is supported over HDMI and DisplayPort. Regardless of connector used, there are two ranges:

  • Basic: 48-60 fps
  • Extreme: 40-60 fps
It is generally recommended to use the Extreme setting, unless you experience additional tearing or other issues.

9.1

Inputs

Score components:

The LG 32UD99 has excellent low input lag regardless of input resolution. It has a large 32" screen and excellent 4k resolution, great for multitasking. It supports a variety of inputs, and the USB-C port supports USB Power Delivery, great if you have a supported laptop or tablet.

9.0 Input Lag
What it is: Delay between input and onscreen reaction.
When it matters: General usage of the mouse and gaming.
Native Resolution
What it is: Lowest input lag possible at the center of the screen, when the monitor is displaying its native resolution at its native refresh rate.
When it matters: General usage and while playing video games.
Good value: < 15 ms
Noticeable difference: 5 ms
:
8.9 ms
Non-Native Resolution
What it is:

Lowest input lag possible at the center of the screen, when the monitor is displaying an alternative resolution at its native refresh rate. The non-native resolution tested depends on the native resolution of the monitor, following this pattern unless otherwise specified in the Input Lag text:

Native Resolution Non-Native Resolution Tested
4k UHD QHD
QHD FHD
FHD 1600x900
3440x1440 2560x1080
2560x1080 1920x1080
When it matters: General usage as well as gaming.
Good value: < 15 ms
Noticeable difference: 5 ms
:
9.0 ms
Native Resolution @ 60 Hz
What it is: Lowest input lag possible at the center of the screen, when the monitor is displaying its native resolution at a refresh rate of 60 Hz.
When it matters: General usage as well as gaming.
Good value: < 15 ms
Noticeable difference: 5 ms
:
8.9 ms
Variable Refresh Rate
What it is: Lowest input lag possible at the center of the screen, when the monitor is using its Variable Refresh Rate feature at its native resolution.
When it matters: General usage as well as gaming.
Good value: < 15 ms
Noticeable difference: 5 ms
:
8.7 ms
HDR
What it is: Lowest input lag possible at the center of the screen, when the monitor is displaying an HDR signal at its native resolution and refresh rate.
When it matters: General usage as well as gaming.
Good value: < 15 ms
Noticeable difference: 5 ms
:
9.0 ms
Black Frame Insertion (BFI)
What it is: Lowest input lag possible at the center of the screen, when BFI is enabled and the monitor is displaying a signal at the highest supported BFI refresh rate.
When it matters: General usage as well as gaming.
Good value: < 15 ms
Noticeable difference: 5 ms
:
N/A

Excellent low input lag, limited by the 60 Hz refresh rate. The input lag is consistent across all modes, even with a non-native resolution input.

9.2 Resolution and Size
What it is: The number of pixels the monitor can display, and the surface area of its screen.
When it matters: All usages, but especially for office and media editing.
Score components:
Native Resolution : 4K UHD, 3840 x 2160
Aspect Ratio : 16:9
Megapixels : 8.3 MP
Pixel Density : 138 PPI
Screen Diagonal : 31.7 inches
Screen Area : 432 sq inches

The LG 32UD99 has an excellent 4k resolution and large 32" screen. This is great for multitasking or for a more immersive gaming experience.

Inputs
Total Inputs
DisplayPort : 2 (DP 1.2)
Mini DisplayPort : No
HDMI : 2 (HDMI 2.0)
DVI : No
VGA : No
DisplayPort Out : No
USB : 2 (USB 3.0)
USB C : 1 (USB, USB PD, DP Alt Mode)
Analog Audio Out 3.5mm : 1
Microphone In 3.5mm : No
Digital Optical Audio Out : No
Analog Audio Out RCA : No

There is a USB-C port that supports DisplayPort Alt Mode, which allows you to display the image from a compatible device on the screen and at the same time charge the connected device with only 1 cable. The maximum power delivery is 60W.

Features

The LG 32UD99-W has a limited set of additional features. It has built-in speakers and supports HDR10. There is a USB-C port that supports DisplayPort Alt Mode and USB-C Power Delivery, great if you have a compatible laptop or tablet. There are no gaming-oriented features. The monitor features the standard LG joystick control, and it makes navigating the OSD a breeze. The OSD is the same as most LG monitors and is very easy to use.

Additional Features
What it is: Additional features found on the monitor
Score components:
Speakers
What it is: Whether or not the monitor features standalone speakers.
When it matters: When using your computer without headphones or a dedicated pair of speakers.
:
Yes
HDR10 : Yes

The 32UD99-W has integrated speakers, and it supports HDR10. The included LG Screen Split 2.0 software can be used to simulate multiple virtual screens on the display or to enable picture-in-picture. There are no gaming-oriented features like a crosshair overlay or fps counter.

There are a few additional features that are typically found on most LG monitors, including:

  • Super Resolution+: an upscaling feature that tries to improve upscaling quality.
  • Black Stabilizer: improves black shades without affecting white shades.

The USB-C port supports power delivery up to 60W, and the USB 3.0 ports support quick charging.

On-Screen Display (OSD)
Controls
LG 32UD99 Controls picture

The monitor's settings can be controlled using the same joystick control found on most LG monitors. It is extremely easy to use and very responsive. Many monitor settings can also be adjusted using the included On-Screen Control software.

In The Box
LG 32UD99 In The Box picture

  • Color Calibration Report
  • USB-C to USB-A Adapter Cable
  • DisplayPort Cable
  • HDMI Cable

Differences between Sizes and Variants

We tested the 32" LG 32UD99-W, which is the only model available. There are other 4k monitors available from LG, some of which are listed below. Note that these are different models with different capabilities.

Model Size Native Resolution Refresh rate Notes
32UD99-W 32" 4k 60Hz FreeSync, HDR
32UD59-B 32" 4k 60Hz FreeSync
27UD68-P 27" 4k 60Hz FreeSync

Our 32UD99-W was manufactured in July 2018.

Compared to other Monitors

LG 32UD99 Group Shot Picture
Left: LG 27UK650. Middle: LG 32UD99. Right: ASUS ROG Swift PG279Q
Unlike our other photographs, this picture wasn't taken under a controlled environment, so do not draw conclusions from it.

The LG 32UD99 is a great monitor with low input lag and wide viewing angles, and one of the best 4k monitors we've reviewed, but the added expense for the limited HDR support might not be worth it. See our recommendations for the best monitors and the best 32 inch monitors.

BenQ EW3270U

The LG 32UD99 is much better than the BenQ EW3270U for most people, unless the  deeper blacks of the BenQ due to the VA panel are of great importance. The LG 32UD99 has an IPS panel with significantly wider viewing angles so you can share your work with you colleagues more easily and at the same time the much better ergonomics allow you to position the monitor to your liking with ease.

LG 32UD59-B

The LG 32UD99 is much better than the LG 32UD59-B. The two monitors have a similar design, with a nearly identical frame and bezel, just a different color. The main difference between the two is due to the different panels; the UD59 uses a VA panel whereas the UD99 uses an IPS. The UD99 is brighter, has wider viewing angles, and supports HDR.

Dell U2718Q

The LG 32UD99 is slightly better than the Dell U2718Q. The LG has better HDR support, with a better color gamut and much better HDR color volume. The LG handles motion better, with a flicker-free backlight as well as FreeSync VRR support. The Dell on the other hand has a better stand that can easily be adjusted to an optimal viewing position.

Samsung CHG70

The LG 32UD99 is a bit better than the Samsung CHG70, depending on your usage. The Dell is better suited for office usage thanks to the wider viewing angles and larger, higher resolution screen. The Samsung is better suited for gaming. It has better motion handling, mainly due to the faster 144 Hz refresh rate, and it has an optional black frame insertion feature to further clear up motion. The Samsung CHG70 also has better HDR support, with a wide color gamut and much better color volume.

LG 32GK850G

The LG 32UD99 is much better than the LG 32GK850G. The LG 32UD99 has better viewing angles due to its IPS panel and supports HDR. and 4k resolution. On the other hand, the LG 32GK850G has a higher native contrast ratio that makes blacks look deep in a dark room. The 32G850G is also a better monitor for gaming since it has a faster pixel response time that only leaves a small blur trail, a faster refresh rate, and a lower input lag,

Dell U3219Q

The LG 32UD99 is somewhat better than the Dell U3219Q. The LG 32UD99 is flicker-free and has a better black uniformity which is great for dark scenes. Also, the LG 32UD99 supports FreeSync which is great if you are a gamer. The Dell U3219Q, on the other hand, has much better ergonomics that allow you to place it comfortably with ease.

ASUS ROG PG348Q

The LG 32UD99 is better than the ASUS ROG SWIFT PG348Q for most uses. The LG is brighter, has better gradient handling, and supports HDR. The 32UD99 also has better dark room performance, with much better black uniformity. The PG348Q and 32UD99 have similar overall gaming performance, but the ASUS can be overclocked to a 100 Hz refresh rate when connected with DisplayPort, and it supports NVIDIA G-SYNC instead of FreeSync.

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Conclusion
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8.0Mixed Usage
Score components:
The LG 32UD99 is a great monitor for most uses. It has a decent stand that can be easily adjusted to an optimal viewing position. The 32", 4k screen is great for multitasking. Fast motion looks crisp thanks to the fast response time, and it has excellent low input lag. Some people will be disappointed by the 60 Hz refresh rate.
The LG 32UD99 is a very good monitor for use in an office. It has a decent stand that has wide adjustments, but can't swivel. The large, 32" screen, and 4k resolution are perfect for multitasking and it has wide viewing angles. It performs well in a bright room, with very good peak brightness and good reflection handling.
The LG 32UD99 is a great monitor for gaming. Motion looks great thanks to the fast response time. It has excellent low input lag, and it supports AMD FreeSync over HDMI and DisplayPort. Unfortunately, some gamers might find the 60 Hz refresh rate too limiting.
This is a very good monitor for multimedia. Fast motion looks good thanks to the fast response time, and the high resolution 4k screen is great for watching 4k videos in HDR. Unfortunately, the effects of HDR are somewhat limited due to the narrow color gamut and mediocre peak brightness. It also isn't the best monitor for dark room viewing, due to the contrast ratio and black uniformity.
Very good monitor for media creation. The large, 32", 4k screen is great for seeing more of your project. Colors look great thanks to the excellent SDR color gamut and excellent color volume, and although its Adobe RGB coverage isn't perfect, it is better than most monitors we have reviewed.
Decent monitor for gaming in HDR. It has a fast response time, excellent low input lag, and FreeSync support. Unfortunately, the impact of HDR is somewhat subdued due to the limited color gamut and mediocre HDR brightness.

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