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34" Class 21:9 UltraWide® WQHD IPS Thunderbolt™ Curved LED Monitor (34" Diagonal)

  • 34UC98-W

Key Features

  • 34" 21:9 Curved WQHD IPS Display
  • sRGB Over 99%
  • Thunderbolt 2.0 (x 2)
  • Screen Split 2.0 (PIP Mode)
  • USB 3.0 Quick Charge
UltraWide Quad High Definition

21:9 UltraWide® Curved WQHD

The immersive viewing experience of the 21:9 UltraWide Curved QHD display* is about 1.8x larger than an UltraWide Full HD 21:9 monitor, and about 2.4x larger than a Full HD 16:9 monitor. In MS Office programs, it displays 47 columns, 63 rows in Excel.

Thunderbolt 2.0 x 2

Thunderbolt™ 2.0 (x2)

Two Thunderbolt input/output ports allow you to connect compatible devices to move data between them with incredible speed of around 20-gigabits-per-second throughput in both directions. 4 times faster than USB 3.0.

USB 3.0 Quick Charge

USB 3.0 Quick Charge

Charge the battery of a connected device quickly using the USB 3.0 port. This port charges USB 3.0 Quick Charge compatible devices much faster than typical USB 2.0 cables, so waiting for a full charge doesn’t hold you up.

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

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.

sRGB Over 99%

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.

Screen Height & Tilt Adjust

Screen Height & Tilt Adjustable

Thoughtful ergonomic design such as adjustable height and tilt of the display for optimal eye level assures you a comfortable work space setting.

Game Mode

 Game Mode 

Game Mode, consisting of FPS, RTS, and Custom modes, provides a customized gaming experience that can be optimized to suit your favorite game genres.

Screen Size Class (diagonal) 34"
Panel Type IPS
Color Gamut (CIE1931) sRGB over 99%
Color Depth (Number of Colors) 10bit (8bit + A-FRC)
Pixel Pitch (mm) 0.2325 mm x 0.2325 mm
Response Time 5ms GTG
Refresh Rate 60 Hz
Aspect Ratio 21:9
Resolution 3440x1440
Brightness (cd/m2) 300 cd/m2
Contrast Ratio 5M:1
Viewing Angle 178 / 178
Surface Treatment Hard Coating (3H), anti-glare
HDMI 2 (ver 2.0)
Display Port 1
Thunderbolt 2.0 2
USB 3.0 1
USB Up 3.0 1
USB 3.0 Quick Charge 1
Type Adapter
Input 100~240V
Picture Mode Yes
PIP In Screen Split
Key Lock Yes
Response Time Control Yes
Quick Charge Yes
FreeSync Yes (DP 55~75Hz)
Game Mode Yes
DAS Mode Yes
Black Stabilizer Yes
Flicker Safe Yes
Automatic standby Yes
Reader Mode Yes (included in Picture Mode)
Six Axis Control Yes
Color Calibrated Yes
Dual Controller Yes
Screen Split 2.0 (in OSC) Yes
My Display Preset (in OSC) Yes
OnScreen Control (OSC) Yes
Dual EDID (H/W) Yes
One Click Stand Set-up Yes
Tilt (Angle) -5~15 Degree
Height (Range) 110mm
Audio Output MaxxAudio 7Wx2
Without Stand (WxHxD) 32.2" x 14.2" x 3.5"
With Stand (WxHxD) (Down) 32.2" x 17.8" x 9.1" / (Up) 32.2" x 22.1" x 9.1"
Shipping Dimensions (WxHxD) 38.5" x 19.9" x 8.2"
With Stand Weight 17.2 lbs
Shipping Weight 24.7 lbs
VESA® Size (mm) 100 x 100
Power Cord Yes
Display Port Yes
Cable Holder Yes
UL(cUL) Yes
TUV-type Yes
CCC (for China) Yes
BSMI (for Taiwan) Yes
ErP Yes
Windows Yes
DisplayPort Yes
Limited Warranty 1 Year Parts & Labor
UPC 719192199378

What People Are Saying

Rated 4 out of 5 by from Great monitor! I bought this about 3 months ago and I LOVE it! Its perfect for productivity and looks super nice. Really good quality product, and would recommend this monitor if you can afford it.
Date published: 2017-10-31
Rated 5 out of 5 by from Awesome Monitor ! When i bought this monitor i got Defective product (Online Shop), so i claim a new one from LG, and they claim ( well because this item is limited in my country, i need wait a 1 month to get claim). the LG Team paid for the Shipment, the Customer Service is not bad at all because they process my claim, and well done ! i use this monitor about 3days right now. I'm happy using this monitor, good for multi tasking window work area. Design, View, Display is awesome. But LG need improve the software "OnScreen Control" when i alt tab from Full Screen ( Like games ) it will stuck me about a few seconds. The Panel + Software Screen Control is good and awesome too Easy use, and perfectly great !
Date published: 2017-08-19
Rated 5 out of 5 by from Great Screen Getting ready to buy another one This screen is amazing, I want to get another one for my setup this things great.
Date published: 2017-07-28
Rated 2 out of 5 by from its OK but BIG image retention The monitor is big and nice but the image retention is horrible . i am doubt that i will buy LG monitors again .
Date published: 2017-07-13
Rated 5 out of 5 by from Awesome monitor, everyone is impressed This monitor is awesome. Everyone is very impressed when they see it. Pros: Very sharp, great for work and also gaming. The stand is nice and simple but solid. The monitor doesn't rock which these larger screens can sometimes do on desks that move a little. Cons: The game modes need some tweaking after you get it to be optimal. I felt the colors were too dark so I had to tweak the colors a bit. But after it was fine.
Date published: 2017-07-08
Rated 5 out of 5 by from had it 4 hours and I'm in Love I'm using two PC's a lenovo win 7 machine with a TB1 out and a Dell desktop with DP out. Looks amazing. Fits my purposes perfectly. I don't care but there is minor ghosting that does not effect my experience. Beautiful Panel.
Date published: 2017-03-24
Rated 3 out of 5 by from Strong image retention (burn-in) Soon after buying this monitor I noticed some flickering pixels, noticeable on black screen. Then I noticed some image retention, wich is a much bigger problem. A month later both problems got much worse! I have issued RMA, and recently got a replacement. The same exact problem! Very disappointed :(
Date published: 2017-01-31
Rated 3 out of 5 by from Great displaty, resolution could be higher Great display, however the detail could be better and lacks USB-C input. Need to wait on the 38" Thunderbolt 3 display coming out
Date published: 2017-01-17
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We're here to support you with our product.

View 34UC98-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.

For the life of me I can't figure out the dimensions as the way they are written out is confusing. What does (down) and (up) mean? Why are the dimensions with the stand smaller than without the stand? How can the height be only 3.5 inches?

Asked by: JeloRoc
Hi JeloRoc. We apologize for the error in the dimensions for the LG 34" Class 21:9 UltraWide® WQHD IPS Thunderbolt™ Curved LED Monitor (34" Diagonal), Model # 34UC98-W. The Dimensions should read as: Without Stand (W x D x H).....32.2" x 3.5" x 14.2" With Stand (W x D x H) .....32.2" x 9.1" x 17.8" (Down) and 32.2" x 9.1" x 22.1" (Up). The stand for the monitor is height adjustable and the Down and Up are referring to the height of the monitor when it is at its lower position and when it is at its higher position...^IFV
Answered by: LGJoel
Date published: 2017-10-12

is it not possible to use pbp with two hdmi sources?? i suppose i can just buy an hdmi to displayport or hdmi to thunderbolt to address this which feels ridiculous.

Asked by: Roger Fleenor
We appreciate your interest in this monitor and its features. According to the chart listed on page 25 of the owner’s manual, the PBP mode can only use one HDMI port at a time.
Answered by: NeilE
Date published: 2017-05-31

With freesync enabled and my r9 390 i have most of light blinking (range 50-75hz), if i disable freesync i dont have this problem, i tryed wiith most driver version, please test and fix firmware.

Asked by: kurtferro79
Our offices, in the United States, do not have product information for Italy. In order to obtain such information, it is recommended to check our subsidiary’s website, at
Answered by: NeilE
Date published: 2017-08-14

So I have a classroom with a projector and six 40" displays around the room. Can this display project an image to the projector and displays while allowing me to continue working on the other side?

Asked by: Groves
I apologize, but no; according to the information listed in the owner’s manual, it appears that all ports on this monitor are INPUT jacks. Each will receive a signal, such as a PC, but will not output a signal to another device.
Answered by: NeilE
Date published: 2017-04-11

Hi, I have purchased new LG monitor and needs to know that I need to connect my computer with only one HDMI cable or I need to connect with Two cables?

Asked by: Syed Asif
Our offices, in the United States, do not have product information for Saudi Arabia. In order to obtain such information, it is recommended to check our subsidiary’s website, at Assistance for household appliances and entertainment devices may be obtained at 8002442929; for air conditioning, 8002445454; for mobile devices, 920007427.
Answered by: NeilE
Date published: 2017-10-22

Can this monitor be wall mounted ? I like the stand but prefer to wall mount it, please advise

Asked by: BradHay
Our offices, in the United States, do not have product information for Australia. In order to obtain such information, it is recommended to check our subsidiary’s website, at
Answered by: NeilE
Date published: 2017-10-22

Hi, I have just setup my 34UC98-W monitor, however, my display settings show a maximum refresh rate of 50 Hertz (PAL). How do I get it to display 60 Hertz? Mac OS X 10.10.5. Thanks

Asked by: Fabs
The LG 34" Class 21:9 UltraWide® WQHD IPS Thunderbolt™ Curved LED Monitor (34" Diagonal), Model # 34UC98-W has a native refresha rate of 60 Hz. If you are only getting 50 Hz then you may want to access access the Screen resolution through the control panel for your PC and change the screen refresh rate from there. You should find it in Advanced Settings. IF you need further assistance, please contact the Support Center for our subsidiary in Canada, (1-888-542-2623 (24 hours a day, 7 days a week)...^IFV
Answered by: LGJoel
Date published: 2017-02-09

When will a black version finally be available?

Asked by: Rob777
There you have it, just without thunderbolt ports.
Answered by: themergiim
Date published: 2016-11-26
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