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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.
38 Inch UltraWide® Curved Display
The world's first 38-inch curved IPS monitor. The 21:9 curved UltraWide QHD+ IPS Display is ideal for designers, photographers, producers and other creative professionals who need more room for big ideas. With exceptional picture quality and innovative features, this UltraWide monitor is for seriously professional creative talents.
WQHD+ Screen Resolution
The Wide Quad High Definition+* (WQHD+) resolution is four times clearer than basic HD, for stunning picture quality. Designed for display of advanced graphics on a wide screen, WQHD+ delivers an amazing 3840 x 1600 pixels.
*WQHD+ (3840 x 1600) pixel resolution may not work depending on content, device, interface or graphics card.
With FreeSync™ gamers can experience seamless, fluid movement throughout hi-res, fast-paced games. FreeSync™ nearly eliminates tearing and stuttering that can occur because of differences between a graphic card’s frame rate and a monitor’s refresh rate.
1ms Motion Blur Reduction
A monitor’s response time is critical in games. 1ms Motion Blur Reduction will allow gamers to enjoy the precision and accuracy needed to play at a very high level. With a response time that is virtually 1ms, blurring and ghosting are dramatically reduced to make the in-game action smoother and gamer reactions more precise.
USB Type-C™ & USB 3.0 Quick Charge
Display 4K video, transfer data and charge a laptop or mobile device, all at the same time using a single cable with USB Type-C™.
Charge the battery of a connected device quickly using the USB 3.0 port. This port charges compatible devices much faster than typical USB 2.0 cables so waiting for a full charge doesn’t hold you up.
Bluetooth Audio with Rich Bass
With a Bluetooth® connection, enjoy the music from a mobile device right through the monitor’s built-in speaker (10W x 2). The monitor’s speaker delivers powerful and vivid sound quality enhanced by LG’s Rich Bass function that covers sound under 85Hz for richer sound with impressive bass depth.
sRGB Over 99%
sRGB is the standard color space of ideal color reproduction. So, 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.
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.
Software download required to enable OnScreen Control. For download details, visit LGUSA.com/OnScreenControlSupport
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.
Custom, Reader, Photo, Cinema, Dark Room 1, Dark Room 2, Color Weakness, FPS Game 1, FPS Game 2, RTS Game, Custom (Game)
In Screen Split
PBP (Picture by Picture)
Six Axis Control
AMD FreeSync™ Technology
Yes (DP 52~75Hz)
10W*2 with Bluetooth / Rich Bass
My Display Preset (in OSC)
OnScreen Control (OSC)
Dual EDID (H/W)
Wide, Original, Cinema 1, Cinema 2, 1:1
1ms Motion Blur Reduction
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
Without Stand Weight
VESA® Size (mm)
100 x 100
USB Type C to C
USB Type A to C
CCC (for China)
BSMI (for Taiwan)
1 Year Parts & Labor
What people are saying
Rated 4 out of
Excellent width, limited heightBought this to replace an older LG monitor which finally died. Do like the curved form, as all parts of the screen equidistant. Have discovered that the lesser height (compared to my prior monitor) requires making landscape pages smaller or viewing only a portion at a time. In retrospect, might have been better to purchase a monitor with more height and less width
Date published: 2019-04-24
Rated 5 out of
Great for video editingI love the real state on this monitor while using Premier Pro, I used to have to monitors and I was a bit hesitant to make the switch, but after trying for over a month I'm not going back. I have not tested the dual computer mode but the split screen mode is not working out that great for me. The price is high but this is my work tool so I look it at as an investment.
Date published: 2019-03-06
Rated 4 out of
DJ ROB from
Immersive - Perfect for Audio EditingPlenty of workspace for audio or video timeline! Love using this.
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.
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)
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: 2019-04-08
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
Does this monitor come in a G-Sync version?
Asked by: Kodiak964
Regrettably, the LG 38" Class 21:9 UltraWide® WQHD+ IPS Curved LED Monitor (37.5" Diagonal), Model # 38UC99-W does not come as a G-SYNC™ model. Currently, the LG 34" Class 21:9 UltraWide® Full HD IPS Curved LED Gaming Monitor with G-SYNC™ (34" Diagonal), Model # 34UC89G-B is the only G-SYNC™ model in our lineup and the LG 34" Class 21:9 UltraWide® QHD IPS Curved LED Gaming Monitor w/ G-SYNC™ (34" Diagonal), Model # 34GK950G-B will be the only other G-SYNC™ model to join it when it is released...^IFV
Answered by: LGJoel
Date published: 2018-09-25
does this monitor support Thunderbolt 3.0? There is no reference made to that anywhere on the specs. Yet I've connected it with the enclosed cable to my 2017 MBP and it seems work. But I'm unclear whether it's using Thunderbolt or just USB-C.
Asked by: LGSFan
Hi LGSFan. The LG 38" Class 21:9 UltraWide® WQHD+ IPS Curved LED Monitor (37.5" Diagonal), Model # 38UC99-W does not have a Thunderbolt™ 3 port. To determine if the port is a Thunderbolt 3 port, look for the Thunderbolt™ 3 symbol that is used to identify such ports as being Thunderbolt™ 3 compatible. Thunderbolt™ 3 uses the USB-C connector, but not all host connections, cables, and devices with a USB-C connector support Thunderbolt™ 3. This means that a USB-C device is compatible with a Thunderbolt™ 3 host connection, but a Thunderbolt ™ 3 device is not compatible with a USB-C host connection...^IFV
Answered by: LGJoel
Date published: 2019-04-05
Hello, I cant get this display to work properly with a macbook pro (15 inch, 2017), i.e, the resolution is poor and the colors and sharpness are awful. I've tried USBc to Display port, to hdmi... I'm getting fed up and disappointed. Will return probably.
Asked by: Wawwy
Hi Wawwy, we see you are contacting us from Canada. If your question is in reference to the US version, per the manual, DisplayPort 1.2 may not be supported depending upon the Mac product. Please contact Apple for further support. For more information about, please contact the LG Support Center in the Canada at www.lg.com/ca_en/support ^AC
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*Prices, promotions and availability may vary by store and online. Prices subject to change without notice. Quantities are limited. Check with your local retailers for final price and availability.
Browse all of LG’s innovative, state-of-the-art computer monitors, including:
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21:9 Curved UltraWide monitors: These high-performance, feature-packed monitors are the ultimate multitaskers. Featuring UltraWide 21:9 resolution, 4-Screen Split, Mac®-compatibility, Dual Linkup and stunning Full HD 1080p. The perfect solutions for designers, photographers, gamers and other professionals who need more room for their big ideas.
IPS monitors: Boasting true-to-life colors, IPS computer monitors lessen color loss and help to keep colors consistent at virtually any angle. The LED backlighting delivers deep black levels and rich colors for an amazing contrast and color detail.
4K monitors: Digital cinema 4K resolution provides crisp images with a significant number of pixels on screen. 4K resolution displays over four times the resolution of standard 1920 x1080 FHD, and over half a million more pixels than UHD resolution, which means you can view even the finest details clearly.
Gaming monitors: Get panoramic multitasking and immersive gaming with features like a 144Hz refresh rate -- the highest of any gaming monitor -- plus a response time of less than 1ms (1/1000 of a second) in Motion 240 Mode. It’s the ideal monitor for real-time strategy and first-person shooters. Dynamic Action Sync lets you catch every single moment in real time, while LG’s Black Stabilizer brightens dark scenes so the enemy can’t hide. Get true-to-life color and brilliant clarity from virtually every angle.
TV monitors: Get Full HD 1080p entertainment from the TV, as well as your computer. With features like a built-in digital tuner and Dolby Surround sound, LG TV monitors can bring your favorite movies and TV shows to life, along with your favorite online content and games.
Discover the latest innovations in performance and technology with gaming, TV and computer monitors from LG, including 4K, ultra-wide, IPS, LED and more. See how we’re making life good.