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  • LG Signature Logo
  • LG ThinQ logo

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
34" Class 21:9 UltraWide® QHD IPS Curved LED Monitor (34" Diagonal)
Download Spec Sheet

PICTURE QUALITY

    • Screen Size
    • 34"
    • Color Gamut (CIE1931)
    • sRGB 99%
    • Color Depth (Number of Colors)
    • 10bits (8bit+FRC), 1.07B
    • Pixel Pitch (mm)
    • 0.2628 x 0.2628
    • Response Time
    • 5ms GTG
    • Refresh Rate
    • 60Hz
    • Aspect Ratio
    • 21:9
    • Resolution
    • 3440 x 1440
    • Brightness
    • 300cd/m²
    • Contrast Ratio
    • 5M:1
    • Viewing Angle
    • 178/178
    • Surface Treatment
    • Hard coating (3H), Anti-glare

INPUT/OUTPUT

    • HDMI
    • 2
    • DisplayPort
    • 1
    • USB Up-stream
    • 1
    • USB Down-stream
    • 2 (Port 1 Supports Quick Charge)

POWER

    • Type
    • Adapter
    • Input
    • 100~240V
    • Normal On
    • 56.7W

SPECIAL FEATURES

    • Picture Mode
    • Yes
    • Ratio
    • Wide, Original, Cinema 1, Cinema 2, 1:1
    • PIP (Picture in Picture)
    • Yes
    • PBP (Picture by Picture)
    • Yes
    • DDC/CI
    • Yes
    • HDCP
    • Yes
    • Key Lock
    • Yes
    • Response Time Control
    • Yes
    • AMD FreeSync™ Technology
    • Yes (DP 40~75Hz)
    • Game Mode
    • Yes
    • DAS Mode
    • Yes
    • Black Stabilizer®
    • Yes
    • Flicker Safe
    • Yes
    • Smart Energy Saving
    • Yes
    • Intelligent Auto (Auto Resolution)
    • Yes
    • Reader Mode
    • Yes (included in Picture Mode)
    • Six Axis Control
    • Yes

DIMENSIONS/WEIGHTS

    • Without Stand (WxHxD)
    • 32.2" x 14.2" x 3.5"
    • With Stand (WxHxD)
    • 32.2" x 17.6" x 9.4" (Down) <br> 32.2" x 22.4" x 9.4"
    • Shipping Dimensions (WxHxD)
    • 38.5" x 19.9" x 8.1"
    • With Stand Weight
    • 18.3 lbs
    • Shipping Weight
    • 25.4 lbs

CABINET/ACCESSORIES

    • Power Cord
    • Yes
    • HDMI
    • Yes
    • Display Port
    • Yes

WARRANTY/UPC

    • Limited Warranty
    • 1 Year Parts and Labor
    • UPC
    • 719192199811

What people are saying

Rated 1 out of 5 by from Failed Two Weeks Past Warranty Navigation button came loose. Monitor can no longer shut off or navigate via menus. Reached out to customer service, would not make an exception for repair. Never buying LG again. Ever.
Date published: 2022-11-12
Rated 5 out of 5 by from Amazing visuals This monitor is perfect for anything visual related, has the most amazing depth and viewing rang. for your 4k games not based on FPS it is perfect crisp and clear. i use this to edit and view my twitch and youtube content.
Date published: 2021-05-04
Rated 5 out of 5 by from LG ROCKS! LG products make your life so much better. Not only are the prices great, the products are above par, and the repairs department kill it. so long story shot BUY LG and live better knowing they care!
Date published: 2021-04-04
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See All Reviews

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View 34UC88-B Product Support

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ASK & ANSWER

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.

Is this monitor support Mac OS? I have an MacBook Air I want to connect to this&nbsp;

Asked by: esmearc14
This is a Plug and Play monitor and doesn't require drivers. If you are in need of assistance with using a monitor, give our computer specialists a call at 800-243-0000. ^Daphane
Answered by: LG Electronics
Date published: 2020-12-23

I have been using this monitor for a few months now and absolutely love it. I am interested in putting it on an adjustable arm mount that clamps to my desk. Is this possible and if so, what arm mounts is/isn't it compatible with?

Asked by: HanB
Yes. I have 2 of these monitors on Ergotron LX Desk Monitor Arms. They are easy to mount and hold up well. That said, I have one monitor on a big, corner style desk which requires the arm to be fully extended and I notice the monitor shakes a little when I'm aggressively typing ;) Otherwise, for standard use, it works great.
Answered by: electricg
Date published: 2021-01-19

Does this money to come with any remote control ?

Asked by: Manny okay
No, this monitor does not come with a remote control.
Answered by: ChrisPSM
Date published: 2019-12-10

Does this have built-in speakers?

Asked by: justbrowsing
Yes, the 34UC88-B features built-in speakers. ^CP
Answered by: ChrisPSM
Date published: 2018-11-03

I want to buy this but I wanted to make sure its good with a Mac Mini? Also does it have sound?

Asked by: cory Jensen
Yes, you can connect your Mac Mini to this computer. You can connect it thru direct HDMI connection. The unit also has built-in speakers. ^AC
Answered by: Amber C
Date published: 2020-01-22

The past 3 days my LG Monitor has no sound after windows update. After each update my LG monitor is not listed as a sound device. After system restore I have sound &amp; it is listed again. When I run driver update it says I have the most update. How do I fix

Asked by: AJMa
Hello AJMa, that doesn't sound right. Please give us a call at 1-800-243-0000 when you are with the unit. ^AC
Answered by: Amber C
Date published: 2018-03-27

Hi, i want to buy this product but I will not hace the correct power cable. What type of power cable I have to buy for France ?

Asked by: SpartanII7
Our offices, in the United States, do not have product information for Belgium. In order to obtain such information, it is recommended to check our subsidiary&rsquo;s website, at http://www.lg.com/be_fr/support/contact/telephone.
Answered by: NeilE
Date published: 2017-02-24

Can I set quad screen and assign hdmi 1 to the screen 1, hdmi 2 to the screen 2 ? Works that way?

Asked by: Josias
I apologize, but no; according to the chart on page 25 of your owner&rsquo;s manual, it is not possible to use both HDMI ports, at the same time, for the Picture By Picture (PBP) functions.
Answered by: NeilE
Date published: 2016-12-30
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†Preorder for the LG UltraGear™ gaming monitor 49GR85DC-B  is available only on LG.com March 20-April 2, 2023. Preorders are estimated to start shipping the week of 4/3/2023 and will be filled on a first come, first served basis. All standard Terms of Purchase apply. Preorder the LG UltraGear™ gaming monitor 49GR85DC-B  and UltraGear™ Gaming Pad UGP90HB-B in a single transaction on LG.com and receive $199.99 instant additional savings off of the pre-tax sale price. Available only on LG.com  for preorders made March 20-April 2, 2023. Savings will be reflected in the cart when all offer requirements are met. Items may ship separately. If any of the qualifying items are removed from the cart or part of the order is cancelled or returned, the promotional savings will be void. Prices and offers are non-redeemable for cash, non-transferable and may not be combined with other offers/discounts. Availability, prices and terms of offer are subject to change without notice. Quantities are limited.

Actual features, functionality, and other product specifications may differ and are subject to change without notice. Prices, promotions, and availability may vary by model, store, and online. Prices subject to change without notice. Quantities are limited. Check with your local retailers for their final price and availability.

Browse all of LG’s innovative, state-of-the-art computer monitors, including:

5K monitors. Take it up a notch with the LG UltraFine monitor, boasting an immersive 27-inch display with 5120 x 2880 resolution and 218 ppi that lets you experience the beauty of a MacBook or MacBook Pro on a large 5K screen. Add to that an unbelievable color spectrum of P3 99% and you’ll be editing and enjoying high-res photos like never before. Too much for you to handle? There’s an impressive 21.5-inch Mac-friendly 4K version as well.

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.

*Disclaimer: 21:9 Screen or 3440 x 1440 (60Hz) resolution may not be available depending on content, device, interface or graphic card.

**Disclaimer: Color mode conversion between Adobe RGB and sRGB is available on the "Color Mode" menu.

*** FreeSync is only available when it is connected to Display Port.