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27" Class 4K UHD IPS LED Monitor (27" Diagonal)

  • 27UD58-B

Key Features

  • 4K UHD (3840 x 2160) IPS Monitor
  • Freesync
  • On-Screen Control
  • Screen Split 2.0
  • Game Mode & Black Stabilizer


The breathtaking clarity and fine details of 4K UHD will amaze, even when viewed up close thanks 8.3 million pixels on a screen with resolution of 3840 x 2160. That's four times the resolution of Full HD.


With FreeSync*, gamers can experience seamless, fluid movement throughout hi-res, fast-paced games. FreeSync eliminates tearing and stuttering that can occur because of differences between a graphic card’s frame rate and a monitor’s refresh rate.

4K UHD Gaming

Game On! The clarity and fine details of 4K UHD will amaze gamers thanks to 8.3 million pixels on a screen with resolution of 3840 x 2160. That's four times the resolution of Full HD for an even more immersive gaming experience.

On-Screen Control

On-Screen Control puts a host of essential monitor settings into a handy window for quick, easy access. Volume, brightness, picture mode presets, Screen Split 2.0 and Dual Controller and more can now be adjusted with just a few clicks of the mouse, instead of hard buttons on the monitor.

Learn More


Watch how the On-Screen Control feature can help configure your display for maximum organization and efficiency.

On-Screen Control

Software download required to enable OnScreen Control. For download details, visit

Screen Split 2.0

Customize your monitor layout for multitasking with the latest version of LG Screen Split. Resize and display multiple windows at once, with 14 options including four different picture-in-picture (PIP) choices.

Game Mode

Set Game Mode for optimal gaming conditions. There are 3 modes, 2 First-Person-Shooter modes and a RTS pre-set mode so you can choose the best mode for your games.

Advanced Gaming Features

Serious gaming features for serious gamers. Quickly optimize monitor settings to activate Black Stabilizer to reveal superior detail in dark scenes while the Dynamic Action Sync feature assures smooth, fluid gaming action.

Arcline Design

The sleek design of LG premium monitors is accentuated by the new ArcLine stand. The smooth curve of the base provides stability, assuring dependable performance with a touch of elegance.

ENERGY STAR® Qualified


ENERGY STAR® certified monitors meet stringent energy efficiency requirements set by the US Environmental Protection Agency in On, Sleep, and Off Modes. On average, monitors that have earned the ENERGY STAR® are 25% more energy efficient than standard options.

Screen Size 27"
Panel Type IPS
Color Gamut (CIE 1931) NTSC 72%
Color Depth (Number of Colors) 10bit(8bit + A-FRC)
Pixel Pitch (mm) 0.1554mm x 0.1554mm
Response Time 5ms GTG
Refresh Rate 60Hz
Aspect Ratio 16:9
Resolution 3840x2160
Brightness 250 cd/m2
Contrast Ratio Mega
Viewing Angle 178 / 178
Surface Treatment Anti-glare, 3H
HDMI Yes x2 (ver 2.0)
Display Port Yes(x1, ver 1.2)
Type Built-in Power (40W)
Input 100-240Vac, 50/60Hz
Normal On (EPA 7.0) 29.5W (EPA 7.0)
Reader Mode Yes
Flicker Safe Yes
Six Axis Control Yes
Factory Calibrated Yes
Plug & Play Yes
On Screen Control Yes
SUPER+Resolution Yes
Black Equalizer Yes
DAS Mode Yes
FreeSync Yes
VESA® Size (mm) 100 x 100
Power Cord Yes
Display Port Yes
S/W Install CD Yes(OnScreen Control)
TCO7.0 Yes
UL(cUL) Yes
EPEAT Gold Yes
CB Yes
KC Yes
EPA7.0 Yes
ErP Yes
Windows 10 Yes
FreeSync Yes
Without Stand (WxHxD) 24.9" x 14.8” X 2.4"
With Stand (WxHxD) 24.9" x 18.2” X 8.0"
Shipping Dimensions (WxHxD) 28.0" x 17.7" x 5.5"
With Stand Weight 12.3 lbs
Shipping Weight 15.9 lbs
Limited Warranty 1 Year Parts & Labor
UPC 719192606579

What People Are Saying

Rated 5 out of 5 by from Great Monitor Very clear. No dead pixels. Use it professionally and personal use.
Date published: 2017-11-26
Rated 5 out of 5 by from Quick setup, excellent resolution I was looking for a monitor that could display the higher resolution of a new computer, but not excessively large for my home office. This LG monitor fit the bill exactly. The setup was simple, and the 3840 x 2160 resolution is excellent.
Date published: 2017-11-08
Rated 4 out of 5 by from Great picture and features! Does this computer have speakers? it seems like it does underneath and there are audio settings but i can't get the speakers to make any noise, I haven't found anything about if it even has speakers or not. The black color correctness is extremely useful, and the image is the most beautiful i have ever founed
Date published: 2017-11-08
Rated 5 out of 5 by from Awesome monitors My wife purchased one of these for me about a month ago as a gift to replace a dead 24inch and I was so happy with the quality, I immediately asked her to purchase a second exact model from Costco ASAP. If you decide to go with these you will not be disappointed. Only regrets, I wish I'd gotten them sooner and I wish they had a bit more adjustments(height) in the stands.
Date published: 2017-10-28
Rated 5 out of 5 by from Superb quality I wasn't sure if I wanted to go with two monitors this large, but I'm glad I made the choice. They fit well side-by-side on my desk, and it gives me the ability to take advantage of running apps full screen while still having a second source for reference (ie, looking up something online).
Date published: 2017-10-22
Rated 5 out of 5 by from Great 4K PC Monitor I bought this LG Ultra HD 4K monitor to take full advantage of the higher-end NVIDIA GTX 1070 graphics card in my new Dell XPS desktop computer which I use for photo and video editing and viewing. The GTX 1070 card DisplayPort outputs video at a resolution of 3840X2160 at 60Hz and that is the setting I use for all of my computer work with my LG Ultra-4K monitor. At that Ultra-4K resolution level the LG 27UD58-B has outstanding color, very quick screen performance, and has never shown the least indication of any negative viewing or performance issues with any large format photos or high-speed videos during my editing, rendering, or viewing. And all photos and videos -- no matter the source, including those streamed from the Internet -- are displayed in wonderful full Ultra-4K format on the LG monitor. Setup of the monitor with my PC was pure plug-and-play, as all I had to do for the initial install was connect the monitor DisplayPort cable (the monitor comes with both HDMI and DisplayPort connecting cables) to my NVIDIA GTX 1070 card and fire-up the PC. I use the NVIDIA card device drivers because they are frequently and automatically updated by NVIDIA, but the LG driver I initially used also worked well. I have found the monitor settings easy to modify and optimize via the included software which can be downloaded and accessed via the PC or accessed directly using the menu toggle button on the bottom front of the monitor. All in all, I believe this monitor is an excellent and reliable product that I can recommend without hesitation for use as a desktop PC Ultra-4K monitor.
Date published: 2017-09-26
Rated 5 out of 5 by from Outstanding clarity and resolution ! This is the best monitor I have purchased in this price area. It has 4K resolution at a price tag no one else can touch for its size. It's an excellent gaming monitor, demanding fast response time, for that much needed split second reaction. Gamers you WON'T go wrong with this beauty.
Date published: 2017-09-23
Rated 5 out of 5 by from Perfect price/quality I bought this three months ago and happy perfect experience vision. It's all about small things.
Date published: 2017-09-23
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View 27UD58-B Product Support

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Please first review the detailed product information and help guides in the Product Support section for this product prior to posting a question.

Does this monitor support freesync threw HDMI

Asked by: Louie18
no no it does not!
Answered by: buckarooni
Date published: 2018-01-16

Does it have integrated speakers?

Asked by: Zekeyzeke
This monitor does not have integrated speakers. ^CP
Answered by: ChrisPSM
Date published: 2018-01-06

What are the differences out of "27UD60-B", "27UD58-B", "27UD58P-B", and "27UD59-B"? What's the newest one out of those 4 above? and what's different between "sRGB 99%" and "NTSC 72%" exactly?

Asked by: silverhorse
The difference among those models are: 27UD60-B is a 2017 model, has a Dynamic Contrast of 1M:1 and Average Response Time of 14ms; 27UD59-B is a 2017 model, has a dynamic Contrast of 5M:1 and Average Response Time of 12ms; 27UD58P-B is a 2016 model, has a Dynamic Contrast of 5M:1, an Average Response Time of 12ms and has a Pivot & Height Adjustable Stand; 27UD58-B is a 2016 model, has a Dynamic Contrast of 5M:1 Reference: ^AC
Answered by: amber
Date published: 2018-01-13

I have a few questions but does this monitor work well with Xbox one x and will a hdmi to display port work for free sync

Asked by: Apolloshaze
The LG 24" Class 4K UHD IPS LED Monitor (24" Diagonal), Model # 24UD58-B is a 4K UHD monitor with a native resolution of 3840 x 2160. It has a Game Mode that can be set for optimal gaming conditions which features 3 modes, 2 First-Person-Shooter modes, and a RTS pre-set mode so you can choose the best mode for your games. It also has Advanced Gaming features like Black Stabilizer which reveals superior detail in dark scenes while the Dynamic Action Sync feature assures smooth, fluid gaming action. It only supports FreeSync™ over its DisplayPort and does not support FreeSync™ Over HDMI®...^IFV
Answered by: LGJoel
Date published: 2017-12-29

Does resetting the monitor’s settings back to factory defaults also remove the out of the box color calibration? If so will I have to recalibrate it?

Asked by: LukeL321
If you will reset the monitor to factory default, you will to calibrate it again. ^AC
Answered by: amber
Date published: 2017-12-12

Is this a flicker free monitor?

Asked by: Bigcat22
This is a flicker safe monitor. ^AC
Answered by: amber
Date published: 2017-12-12

Does this monitor offer any sort of Blue Light reduction to protect your eyes?

Asked by: alterniTECH
There is no blue light reduction option on the monitor but you can adjust the picture mode. ^AC
Answered by: amber
Date published: 2017-12-14

is this monitor vesa compatible

Asked by: randhaltom
That's a great question randhaltom. This monitor is VESA compatible at 100 x 100. ^CP
Answered by: ChrisPSM
Date published: 2017-10-21
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