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  • 38" 21:9 Curved WQHD+ IPS Display
  • sRGB Over 99%
  • 1ms Motion Blur Reduction
  • USB Type-C™ & USB 3.0 Quick Charge
  • Bluetooth Speakers with Rich Bass
38" Class 21:9 UltraWide® WQHD+ IPS Curved LED Monitor (37.5" Diagonal)
$ 1,099.99
UL Verification 38UC99 – Faster Response Time1

UL Verification 38UC99 – Faster Response Time

UL Verification is an objective, science-based assessment that confirms the accuracy of marketing claims via test, inspection, product analysis, demonstration and process analysis verification techniques.
*WQHD+ (3840 x 1600) pixel resolution may not work depending on content, device, interface or graphics card.

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.
Watch how the On-Screen Control feature can help configure your display for maximum organization and efficiency.
Software download required to enable OnScreen Control. For download details, visit


    • Screen Size Class (diagonal)
    • 37.5" Curved
    • Resolution
    • 3840 x 1600
    • Response Time
    • 14ms / 5ms
    • Refresh Rate
    • 60 Hz / 75Hz with Display Port with FreeSync
    • Color Depth
    • 10bits (8bit+FRC), 1.07B
    • Panel Type
    • IPS
    • Aspect Ratio
    • 21:9
    • Color Gamut (CIE1931)
    • sRGB over 99%
    • Brightness (typical)
    • 300 cd/m2
    • Contrast Ratio
    • Mega
    • Viewing Angle
    • 178/178
    • Pixel Pitch (mm)
    • 0.229 mm x 0.229 mm


    • Display Port
    • Yes(1.2)
    • USB 3.0
    • Yes x2
    • HDMI
    • 2 (ver 2.0)
    • USB 3.0 Quick Charge
    • 1


    • Type
    • Adapter
    • Input
    • 100-240Vac, 50/60Hz
    • Normal On (EPA)
    • 48W


    • Smart Energy Saving
    • Yes
    • Key Lock
    • Yes
    • DDC/CI
    • Yes
    • HDCP
    • Yes
    • Picture Mode
    • Custom, Reader, Photo, Cinema, Dark Room 1, Dark Room 2, Color Weakness, FPS Game 1, FPS Game 2, RTS Game, Custom (Game)
    • Super+ Resolution
    • Yes
    • PIP/PBP
    • In Screen Split
    • PBP (Picture by Picture)
    • Yes
    • Automatic Standby
    • Yes
    • Flicker Safe
    • Yes
    • Six Axis Control
    • Yes
    • Game Mode
    • Yes
    • Black Stabilizer
    • Yes
    • DAS Mode
    • Yes
    • AMD FreeSync™ Technology
    • Yes (DP 52~75Hz)
    • Speaker
    • Yes
    • Audio Output
    • 10W*2 with Bluetooth / Rich Bass
    • Quick Charge
    • Yes
    • Color Calibrated
    • Yes
    • My Display Preset (in OSC)
    • Yes
    • OnScreen Control (OSC)
    • Yes
    • Dual EDID (H/W)
    • Yes
    • Height (Range)
    • 110mm
    • Ratio
    • Wide, Original, Cinema 1, Cinema 2, 1:1
    • 1ms Motion Blur Reduction
    • Yes


    • Shipping Weight
    • 29.1 lbs
    • With Stand (WxHxD)
    • 35.3" x 18.4" x 9.1" (down)/35.3" x 23.1" x 9.1" (up)
    • Without Stand (WxHxD)
    • 35.3" x 15.5" x 3.6"
    • Shipping Dimensions (WxHxD)
    • 41.5" x 21.2" x 8.1"
    • With Stand Weight
    • 20.5 lbs
    • Without Stand Weight
    • 16.9 lbs


    • VESA® Size (mm)
    • 100 x 100
    • Power Cord
    • Yes
    • HDMI™
    • Yes
    • Display Port
    • Yes
    • USB Type C to C
    • Yes
    • USB Type A to C
    • Yes
    • Cable Holder
    • Yes


    • TUV-Type
    • Yes
    • UL(cUL)
    • Yes
    • FCC-B, CE
    • Yes
    • Windows
    • Yes
    • ErP
    • Yes
    • DisplayPort
    • Yes
    • CCC (for China)
    • Yes
    • BSMI (for Taiwan)
    • Yes


    • Limited Warranty
    • 1 Year Parts & Labor
    • UPC
    • 719192606746

What people are saying

Rated 2 out of 5 by from Was great for awhile—— then died Bought this three years go, then one day the toggle switch underneath stopped working and would not respond at all. Nothing …. Nada …. terribly disappointing because up to then it was great… I make it a practice not to buy consecutively from the same manufacturer or supplier after getting burned.
Date published: 2021-10-02
Rated 5 out of 5 by from Awesome Dual Computer Input I purchased this monitor because I was working out of two different computers cohesively. I love the size and functionality. I wish the KVM was a hardware one instead. I have not been able to download the software needed for the onscreen management and KVM switch management to toggle between computers with one mouse and one keyboard. Things to note - KVM switch is software based and requires software to be downloaded to both computers. PIP hardware - software is not needed to display two different computers at the same time. Speakers - good quality speakers, however sound only seems to work on the USB C connection, not the HDMI. (Workaround is connecting second computer via Bluetooth.) No Mic - I bought a webcam and use this for the mic and camera. USB Plugs - they seem a little wonky and this worries me a little. Definitely must be gentle when connecting and disconnecting cables. Overall, I love my monitor and would recommend.
Date published: 2021-09-20
Rated 4 out of 5 by from Great centrepiece to the setup It’s a pretty great screen. Taller than I thought it was going to be but just the right size the replace 2 ~22 inch monitors. Has some useful features, I keep it simple and all works well. Great that you can split the screen across two devices with separate connections. The blinking light during power saving mode is a little annoying and it does few like the resolution could be a little sharper. But overall it looks great and works well. Don’t think I could go back to 2 separate monitors now. Recommend it
Date published: 2021-02-20
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Ask your questions. Share your answers.
Please review the detailed product information and help guides in the
Product Support section for this product prior to posting a question.

does this monitor comes with anti glare coating?

Asked by: lina1221
The LG 38'' Class 21:9 UltraWide® WQHD+ IPS Curved LED Monitor (37.5'' Diagonal), Model # 38UC99-W does not have an Anti-Glare surface treatment...^IFV
Answered by: Ivanf
Date published: 2020-10-15

Do you sell just the stand? Have the monitor, but lost the stand in a move. 

Asked by: Jromeri2
A replacement stand for the LG 38'' Class 21:9 UltraWide® WQHD+ IPS Curved LED Monitor (37.5'' Diagonal), Model # 38UC99-W can be ordered from our Authorized Parts Distributor affiliate, Encompass Parts, (800) 432-8542,^IFV
Answered by: Ivanf
Date published: 2020-10-13

I have a few of these for the office.  The preferred EDID is 3840 x 1600p @ 75Hz, also can have 4096 x 2160p @ 100Hz and  4096 x 2160p @ 50Hz which my PC is picking up instead.  Is this an error in the EDID? (I don't think this model support this?) 

Asked by: Anonymous
The LG 38'' Class 21:9 UltraWide® WQHD+ IPS Curved LED Monitor (37.5'' Diagonal), Model # 38UC99-W has a native resolution of 3840 x 1600 and a refresh rate of 60 Hz / 75Hz with Display Port with FreeSync, so it is probably an error with the EDID since the monitor does not support 4096 x 2160p @ 100Hz or 4096 x 2160p @ 50Hz.. You may need to add a custom extension block, for the drivers for your Graphics card to recognize the custom EDID. Contact your PC's manufacturer for advice. You may also be able to go into the properties for the display and un-tick EDID and select the correct resolution and refresh rate for the screen. It should then have all the correct resolutions listed in the manual...^IFV
Answered by: Ivanf
Date published: 2020-10-13

can we pivot this monitor?

Asked by: paranoia_2005
The LG 38'' Class 21:9 UltraWide® WQHD+ IPS Curved LED Monitor (37.5'' Diagonal), Model # 38UC99-W does not pivot...^IFV
Answered by: Ivanf
Date published: 2019-07-08

Will this work with ChromeOS?

Asked by: waltt
The LG 38'' Class 21:9 UltraWide® WQHD+ IPS Curved LED Monitor (37.5'' Diagonal), Model # 38UC99-W is a Plug 'N' Play monitor and it has a DisplayPort (version 1.2) and 2 x HDMI ports (Version 2.0) for connectivity. It has a resolution of 3840 x 2160 so if the GPU in your unit has the right connectivity or can connect with adapters and it supports the monitor's resolution, it will work...^IFV
Answered by: Ivanf
Date published: 2019-07-08

Why, for years, does the onscreen control keep crashing in windows 10? It randomly ALWAYS crashes and I have to either restart my PC. I'm using the latest software. I'm a tech so I've tried several things from reinstalling to cussing at the monitor.

Asked by: Mark Ch
We hate to hear you are having this trouble with your monitor. So we can look into this further, please give our computer specialists a call at 800-243-0000. ^CP
Answered by: ChrisPSM
Date published: 2019-04-22

Why does text look terrible and crunchy, and all graphics are unacceptably pixelated one a MBP Retina 15". Radeon Pro 560 4 GB Intel HD Graphics 630 1536 MB Framebuffer Depth: 30-Bit Color (ARGB2101010) Resolution:3840 x 1600 (Ultra-wide 4K) TV:Yes

Asked by: ratedg
We hate to hear you are having trouble with your monitor. Please give our computer specialist a call at 800-243-0000 so we can look into this further. ^CP
Answered by: ChrisPSM
Date published: 2019-04-21

Is there way to switch input port from the on screen control program? The joy stick is a pain when needing to go back and forth between 2 computers often.

Asked by: Michael J 1952
Regrettably, OnScreen Control features Screen Split, Monitor Setting, My Application Preset and Game Mode Setting, doesn't have an Input Select that you can use to toggle between two external sources. The monitor supports Picture by Picture (PBP) where you can split the screen in half and designate one screen as the Main Screen and the other as the Sub screen and although you can toggle between Main and Sub screens using the Main/Sub Screen Change you still need to use the joystick to access that. The Monitor also has an Auto Input Switch which when set to On, will automatically switch the display to a new input when connected. ^AC
Answered by: Amber C
Date published: 2018-09-27
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