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

  • 27UD88-W

Key Features

  • 4K UHD (3840 x 2160) IPS Monitor
  • sRGB over 99%
  • USB Type-C
  • On-Screen Control with Screen Split 2.0
  • FreeSync
  • Game Mode & Black Stabilizer


The clarity and details with 4K Ultra HD resolution will amaze, even up close. With over 99% coverage of the sRGB spectrum this LG monitor is a great solution for professional photographers, graphic designers or anyone looking for highly accurate color.¹

Color Calibration Pro

Color Calibration Pro

Calibration hardware² and Color Calibration Pro work together to assure accurate color, while color mode presets adapt to a variety of specific needs.

USB Type-C™

USB Type-C™

Display 4K video, transfer data and charge a laptop or mobile device, all at the same time using a single cable with USB-C™.

On-Screen Control

On-Screen Control makes it easy to adjust many monitor settings via an on-screen window, with a few easy clicks of your mouse.

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

Split Screen 2.0

Split Screen 2.0

Customize your monitor layout, resizing and displaying multiple windows at once with 14 options including PIP.

4K Dynamic Gaming

Experience clearer and more stable gameplay with 4K UHD resolution and FreeSync technology.


LG's 21:9 UltraWide monitors with FreeSync³ technology eliminate the tearing and stuttering that have plagued gaming enthusiasts for years.

 Game Mode 

Set your game mode optimal gaming conditions.

Black Stabilizer

Keep visibility even in dark scenes. LG's Black Stabilizer sense dark scenes and helps make it brighter so that you can find the enemies hiding and waiting to attack your player in the dark.

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 Class (diagonal) 27" Class (27" diagonal)
Panel Type IPS
Color Gamut (CIE1931) SRGB 99%
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 3840 x 2160
Brightness (cd/m2) 350 cd/m2
Contrast Ratio 5M:1
Viewing Angle 178 / 178
HDMI 2.0 2
DisplayPort (ver1.2) 1
USB 3.0 2
USB 3.0 Quick Charge Yes (x1, PD, DP Alt. Mode, Data), UHD@60Hz
Type 140W Adapter
Input 100~240V, 50/60Hz
Normal On (EPA) 29W
sRGB Yes
HDCP (2.2) Yes
Reader Mode Yes
Flicker Safe Yes
Six Axis Control Yes
Factory Calibrated Yes
H/W Calibration (True Color Pro) Yes
Plug & Play Yes
On Screen Control Yes
SUPER+Resolution Yes
Black Equalizer Yes
DAS Mode Yes
FreeSync Yes
Marker Yes
DICOM Mode Yes
Without Stand (WxHxD) 24.2" x 1.7" x 14.4"
With Stand (WxHxD) 24.2" x 8.1" x 16.7"
With Stand Weight 13.3 lbs
Power Cord Yes
USB Type C to C Yes (1m Cable, PD+DP+Data, UHD@60Hz)
USB Type A to C Yes (1m Cable, USB Data)
Display Port Yes
S/W Install CD Yes (OnScreen Control)
UL(cUL) Yes
CB Yes
KC Yes
ErP Yes
EPEAT Yes (Gold)
Ultra HD (Europe) Yes
Windows 8 Yes
DisplayPort Yes
USB-C PD+DP Alt.Mode Yes
FreeSync Yes
Limited Warranty 1 Year Parts & Labor
UPC 719192199750

What People Are Saying

Rated 3 out of 5 by from Good image, poor extra features Using it with a 2015 Macbook pro. I'm very happy with the screen itself, which is (up to now) faultless. Now the additional features are rather poor. There isn't much of them (no SD card reader, no webcam), and those present are badly executed. There are only 2 USB ports, are not accessible from the front, and most annoyingly, the USB hub is powered down each time the monitor sleeps, which means brutal disconnection of your external drives if you happen to have some. A firmware update should absolutely take care of this because it is dangerous to your data and makes the integrated hub useless (right now it's neither for mobile media --unaccessible-- nor for fixed peripherals --hard power off).
Date published: 2018-01-17
Rated 1 out of 5 by from Very poor Monitor I bought this monitor from Amazon and within a few days I discovered that it's joy-stick button was not working properly. Recently, I was trying to switch the inputs using the joy-stick button and the monitor turned off. And now I cannot turn it on. It's been just over a year that bought this piece of junk!!
Date published: 2017-11-18
Rated 4 out of 5 by from Apple MacBook Pro 15" - Alright I purchased 2 of these monitors, after having purchased (and returned) the Apple approved 5K (Model: 27MD5KA-B.AUSA). These are fine and are basically 1/2 the price of the 5K version. The only thing they are missing are: 1) (of course) 5K; 2) No built in camera; 3) No built in speakers; 4) Cannot charge my 2016 MacBook Pro 15" - have to use the charging cable. I just couldn't justify the cost difference, and they both have the plastic look - miles away from my Apple Thunderbolt Display aluminum and glass finish. (oh, Apple, why did you desert us??) I do NOT like the White back (screams plastic - whereas with black, you're not really sure), or the White cords, which calls attention to them. I really wanted a clean-one cord USB-C solution, but when I realized that with any monitor (including the LG 5K that Apple sells), you would have to plug in one monitor to one side of the MBP and the other monitor into the other side of the MBP (no, you can't plug them into the same side), I figured, what's one more cord?
Date published: 2017-10-08
Rated 5 out of 5 by from A Game Changer I have a 12 inch MacBook to use when on the road. Now as you can imagine this isn't exactly the best way to be productive when back in the office. Now hooking this incredible monitor up to my Macbook using ONE usb-c cable (also charges it at the same time) now my productivity is through the roof. Also to see how crisp every video, photo and the brightness is just incredible. It has caused multiple colleagues to follow suit and they are also delighted, A must buy!
Date published: 2017-08-14
Rated 5 out of 5 by from Great Monitor I don't know why other people are complaining. Me and a colleague both have this monitor and it works perfectly! I have tried 3 other 4k monitors (Samsung, HP, Acer) but this one is the best! It works right out of the box. The stand is great. A lot of the other stands on most 4k monitors are cheap or not sturdy. This monitor has the menu button on the bottom to switch inputs easily. I can switch between my MacPro connected with a DisplayPort cable, my 2016 MacBookPro 15" with touch bar using USB-C and a 2013 MacBookPro 15" with HDMI. No problems switching between them and all work great! I have no wake problems, no flickering problems. Another cool feature that I haven't seen on any other 4k/UHD monitors is the extra USB 3 inputs. One has quick charge so I can charge a speaker, my phone or iPad. The color is great!
Date published: 2017-07-05
Rated 1 out of 5 by from Junk, Won't Wake Up Bought this back in late December for my new Apple MBP w/ Touchbar. This monitor has been a nightmare: won't wake up from sleep, you can hear static discharge from the USB-C cable when you unplug it, flickering, turns off (or on) at strange times, self-adjusting brightness that always fails to please. Do yourself a favor and buy something else. All that said, great picture when it chooses to work! About 10% of the time!
Date published: 2017-06-11
Rated 2 out of 5 by from Bugidisplay with cheap design I got this monitor and I sold it away cause it did not work properly. I have new 13" MacBook Pro with USB-C and also 12" MacBook Pro and I used this display with both computer and they have serious problems. 1.) Original USB-C wire didn't work so I had to buy new and after this some problems was gone. 2.) I am using my computer clamshell mode and I use separate keyboard and mouse. When I tried to wake-up display from sleep the computer woke up but not LG display. So I have to connect and disconnect cable manytimes per day. 3.) when I took USB-C cable from my computer after this my computer crash time to time. 4.) With 12" MacBook display was flickering every 10seconds! So I couldn't use display with MacBook. 5.) Display got extremely bright white light down in display and it is flashing when it goes sleeping. So if this display is same place where you are sleeping or room which should be relaxing this LG is destroying that! You can't take that fiction away. I also contact LG support and it was Awful! I heard that it's not working at all and no I have my own experience from that. It is Horrible! I also google display and other user are experience similar problems whit this display. So I don't recommend this display even some reviews are saying that this display is good. NO IT'S NOT. DON'T Buy!
Date published: 2017-04-03
Rated 5 out of 5 by from 4K that works great out of the box I brought this monitor home expecting to have to do the usual configuration to get the resolution to 4k at 60Hz, but everything booted up at the proper resolution the first time. My monitor is connected to an HP Spectre x360 15.6".
Date published: 2017-03-17
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We're here to support you with our product.

View 27UD88-W Product Support

Contact us for any support inquiries.


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

Does the monitor support Freesync over HDMI?  if not, does LG make another 4k monitor that supports it? Thanks!

Asked by: Lagastronaut
Umm, the footer says otherwise: ³FreeSync is only available when it is connected to Display Port.
Answered by: Jerret
Date published: 2018-01-06

Does this monitor support a Macbook Pro late 2014 model with no USB-C. If so, how do I connect it?

Asked by: peterndungu
In addition to the USB Type -C™ port, the LG 27" Class 4K UHD IPS LED Monitor (27" Diagonal), Model # 27UD88-W also has 2 x HDMI (version 2.0) ports and a DisplayPort port (version 1.2) on it...^IFV
Answered by: LGJoel
Date published: 2018-01-05

How do I access the color calibration Pro software and owner's manual online? My laptop doesn't have a dvd reader so I can't use the CD/DVD that was included with the monitor.

Asked by: Amonfort
You can find downloadables such as these here: If you need any assistance please reach out to a computer specialist by calling 800-243-0000. ^CP
Answered by: ChrisPSM
Date published: 2017-12-16

I bought this Monitor for my 2017 MacBook Pro with touch bar.  I planned to use two USB-A at the back of the monitor as the USB hub.  But they are not reading my flash drive and not connecting to my mouse.  Why is that? How do I use the USB-A port? 

Asked by: Need an Answer
This certainly is something we would love to look into with you. Please reach out to our computer specialist by calling 800-243-0000 so we can assist you with this. ^CP
Answered by: ChrisPSM
Date published: 2017-11-10

Can I use the "27" 27UD88-W monitor with my MacBook Pro (mid 2014) If so, how to I connect it? Do I use a USB C converter to a thunderbolt 2? 

Asked by: peterburgman
The USB port labeled on the ENERGY STAR® Qualified LG 27" Class 4K UHD IPS LED Monitor (27" Diagonal), Model # 27UD88-W labeled USB 3.0 Quick Charge supports the VESA DisplayPort™ Alternate Mode on USB-C™ and will support UHD @ 60 Hz...^IFV
Answered by: LGJoel
Date published: 2017-09-14

How do I rotate the moniter screen. Mine is off by 1o degrees. Can you please me. I don't want to break it lol

Asked by: Cotton771986
We do appreciate your interest in this monitor. According to page 13 of the owners manual, to rotate the monitor screen you would do the following: 1) Raise the monitor to the maximum height. 2) Adjust the angle of the monitor in the direction of the arrow as shown in the figure. 3) Rotate the monitor clockwise as shown in the figure. 4) Complete the installation by rotating the monitor 90° as shown below.
Answered by: NeilE
Date published: 2017-08-16

Finally this monitor can support 4k at 60Hz on macbook pro with touchbar models via usb-c ??? Can also charge it ?? Or need display port to get 60Hz? Thanks

Asked by: Dimitrios
The LG 27" Class Full HD IPS LED Gaming Monitor (27" Diagonal), Model # 27UD88-W was designed in partnership with Apple to pair with the new MacBook Pro. It offers up to 60 watts of power over USB-C to power a notebook computer, so you will need to check how much your MacBook Pro draws to determine if it will charge it. The 2016 MacBook only supports 30 Hz out of the box for 4K resolution and on its support page, Apple makes it known that 4K resolution is limited to 30 Hz, however, it is possible to enable 60 Hz at native 4K resolution using an easy-to-apply IOKit patch...^IFV
Answered by: LGJoel
Date published: 2018-01-14

This monitor support via usb-c 4k at 60Hz and also charge the touch-bar mac book pro?

Asked by: Dimitrios
The LG 27" Class Full HD IPS LED Gaming Monitor (27" Diagonal), Model # 27UD88-W was designed in partnership with Apple to pair with the new MacBook Pro. It offers up to 60 watts of power over USB-C to power a notebook computer, so you will need to check how much your MacBook Pro draws to determine if it will charge it. The 2016 MacBook only supports 30 Hz out of the box for 4K resolution and on its support page, Apple makes it known that 4K resolution is limited to 30 Hz, however, it is possible to enable 60 Hz at native 4K resolution using an easy-to-apply IOKit patch...^IFV
Answered by: LGJoel
Date published: 2017-12-01
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