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Key Features

  • 21:9 UltraWide QHD IPS Monitor
  • sRGB over 99%
  • USB 3.0 Quick Charge
  • Game Mode
  • On-Screen Control with Screen Split 2.0
  • FreeSync
See Retailer for Pricing
21:9 UltraWide® QHD IPS Display

21:9 UltraWide® QHD IPS Display

The 3440 X 1440 UltraWide QHD display offers amazingly sharp picture quality¹. Its pixel area is about 1.8 times larger than an UltraWide Full HD 21:9 monitor, and about 2.4 times larger than a Full HD 16:9 monitor. It provides an efficient environment in using Microsoft Office programs showing 47 columns and 63 rows in excel.

sRGB Over 99%

sRGB Over 99%

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 color².

USB 3.0 Quick Charge

USB 3.0 Quick Charge

Save time when you power up the battery of a connected device using USB 3.0 Quick Charge. Once enabled, this convenient feature allows a phone or other mobile device to charge up to four times faster than regular USB 3.0.

On-Screen Control

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 34UC88-B

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.



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

Game Mode

 Game Mode 

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

Height & Tilt Adjustable Stand

Height & Tilt Adjustable Stand

Select LG monitors are easy to put together with a simple press-and-click display-to-base attachment. The monitors provide comfortable viewing with versatile screen tilt/height adjustments.


What People Are Saying

Rated 5 out of 5 by from Bought it to replace dual monitors. Great move and but
Date published: 2018-11-03
Rated 5 out of 5 by from Very Nice Monitor This was purchased as a replacement for an LG Electronics 34UC87M-B. Honestly, I can't tell the difference except this newer version is about $200 less expensive
Date published: 2018-08-06
Rated 5 out of 5 by from Amazing Bought it a month ago and I love it. I mostly use it for programming and this is far better than having two monitors up.
Date published: 2018-08-04
Rated 5 out of 5 by from Command Center Purchased this monitor to replace two side by side monitors and i couldn't be happier with the purchase. The ability to use the onscreen control to toggle between displays on the fly is awesome. The resolution and curved screen make using this so simple and drastically reduces strain on my eyes and neck.
Date published: 2018-08-03
Rated 5 out of 5 by from Amazing display This is the absolute best display I have ever used.
Date published: 2018-08-01
Rated 5 out of 5 by from I saw this at a client's and was very impress and ordered one when I got back to my office
Date published: 2018-06-24
Rated 5 out of 5 by from Excellent work monitor for application development This monitor is the perfect sized desk-monitor for work. You can have your IDE, application, and console, all up side-by-side-by-side. The curved design is especially nice (though it can cause designs to also look a bit curved so caution if you do a lot of creative work or finely-detailed grid-work). This monitor is also a great price for the value. I'd highly recommend it to anyone searching for a new work monitor,
Date published: 2018-06-10
Rated 5 out of 5 by from The 34UC80-B is a great value! I did some internet research before settling on the LG 34UC80-B and I couldn't be happier with it. Out of the box I was able to set it up and get it working in minutes. The picture looked fantastic and the screen dwarfed my 2 x 24" monitors. I'm able to do all my work on this one monitor with room to spare.
Date published: 2018-06-01
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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.

Hi. What's the difference betwwen the LG 34UC80-B and the LG 34CB99-W? Thanks and best regards.

Asked by: RickTerry
Hi Rick. The LG 34" Class 21:9 UltraWide® QHD IPS Curved LED Monitor (34" Diagonal), Model # 34UC80-B is a monitor from our Consumer Division while the LG 34" Class (34" Diagonal) 21:9 UltraWide® WQHD IPS Curved LED Monitor with USB Type-C ), Model # 34CB99-W is from our Commercial/Business Division. They have different pixel pitches. The 34CB99-W has a Pixel Pitch of 0.2325 mm x 0.2325 mm and the 34UC80-B has a Pixel Pitch of 0.2628 mm x 0.2628 mm. The 34CB99-W has 2 x 7W built-in speakers, has a USB Type-C port that supports USB PD (Power Delivery) and delivers 60W. The 34CB99-W has a 3-Year Limited Warranty for Parts/Labor/Backlight and the 34UC80-B has a 1-Year Limited Warranty for Parts/Labor...^IFV
Answered by: LGJoel
Date published: 2018-07-10

144hz? 120hz 100hz?

Asked by: tonygern
The LG 34" Class 21:9 UltraWide® QHD IPS Curved LED Monitor (34" Diagonal), Model # 34UC80-B is a 60 Hz refresh rate monitor...^IFV
Answered by: LGJoel
Date published: 2018-02-06

What is the curvature of the monitor?

Asked by: samxcnvxc
The LG 34" Class 21:9 UltraWide® QHD IPS Curved LED Monitor (34" Diagonal), Model # 34UC80-B has a curvature of 1900R...^IFV
Answered by: LGJoel
Date published: 2018-08-27

What is the difference between the LG 34UC80-B and the LG 34UC88-B?

Asked by: Zhorzhio
The LG 34" Class 21:9 UltraWide® QHD IPS Curved LED Monitor (34" Diagonal), Model # 34UC80-B and the 34UC88-B have identical specifications and the only difference is their release dates. The 34UC80-B is a 2017 release and the 34UC88-B is a 2016 release...^IFV
Answered by: LGJoel
Date published: 2018-02-03

i recently purchased this monitor and can't find the split screen 2.0 app

Asked by: paulie k
I can provide you the link where you can download the software. Split Screen can be found under OnScreen Control software. This is the link: You can see there both softwrae for Windows OS and Mac OS. ^AC
Answered by: amber
Date published: 2017-12-14

I cannot seam to get the monitor speakers to work on this model. I have tried using the test from the Advanced tab on the LG Ultrawide Properties dialog box, and it still does not work. I am using the HDMI input 1 on the monitor (34UC80-B).

Asked by: Bryce1234
It sounds like we'll need to walk through some troubleshooting for your monitor. Please reach out to a computer specialist by calling 800-243-0000 so that we can dig into this a little more for you. ^CP
Answered by: ChrisPSM
Date published: 2017-12-07

You advertise that this monitor supports freesync but it does not!!!!! I recently purchased a 34UC80-b and while your website says you support free sync and the monitor OS has a freesync option, AMD does not list it on the website! What gives??!

Asked by: SighCy
Thank you for pointing this out. We will look into this. This monitor does support freesync. If you have any additional questions concerning your monitor please reach out to a computer specialist directly by calling 800-243-0000. ^CP
Answered by: ChrisPSM
Date published: 2017-11-29

I recently purchased this monitor, however, does this monitor have build in speaker?

Asked by: phll
The speakers on my and my roommate's monitors do not work at all. So, I really doubt whether this model has a built-in speaker.
Answered by: hwang
Date published: 2017-10-26
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