To properly experience our website, you will need to use an alternate browser or upgrade to a newer version of internet Explorer (IE9 or greater).

The website utilizes responsive design to provide convenient experience that conforms to your devices screen size. In order to get the best possible experience our LG.COM website please follow below instructions.

If you’re using Internet Explorer 8 or earlier, you will need to use an alternate browser such as Firefox or Chrome or upgrade to a newer version of internet Explorer (IE9 or greater).

If you’re using Internet Explorer 9 and higher, turn off your Internet Explorer browser’s “Compatibility View settings” by following steps below:

  • Right click at the top of your browser and make sure the “Menu Bar” option is selected
  • Select “Tools” from the menu bar and then select “Compatibility View settings”
  • In the pop-up menu uncheck all three boxes and click “Close”
  • Your browser window will automatically refresh and you’ll be ready to go
Skip to Contents

Professional Screen Real-Estate 21:9 UltraWide™ QHD IPS Monitor

  • 34UM88-P

Key Features

  • 21:9 UltraWide™ QHD
  • IPS
  • Thunderbolt™
  • Hardware Calibration Ready
  • sRGB over 99%
  • Onscreen Control / Screen Split

21:9 UltraWide™ Rules

Perfect for multitasking and entertaining, the LG 21:9 UltraWide™ is always the right choice. A full range of 21:9 UltraWide™ monitors, both curved and flat, are available to meet your needs.

21:9 UltraWide™ QHD on IPS Display

The 21:9 UltraWide™ QHD (3440*1440) display enables you to stretch the limits of screen real-estate. With the IPS display, visual comfort is guaranteed while ensuring vivid and accurate colour expression.

The Beauty of ArcLine

Inspired by the beauty and power of nature, the ArcLine completes the design with a refined aesthetic flair.

Thunderbolt™ 2 Compatibility with Mac devices

With the Thunderbolt™ 2 port for Mac devices, you can take advantage of data transmission that is 4 times faster than the USB 3.0, and also can expand computing capability more easily via a simple daisy-chain configuration without the need for an extra connector.

Flawless Colour Expression

You are guaranteed an immersive artwork by perceiving the same colour as a subject on display or RGB colour code through a sRGB over 99 colour space and IPS’s accurate colour expression. Since colour calibration tests are conducted on the production line and the Hardware Calibration Ready with a built-in scaler to directly adjust the colour setting, its colour accuracy is guaranteed with tools for perfect colour management.

Advanced Tech Design

The adjustable stand with Height and Tilt function allows you to provide more comfortable working conditions

Customize Your Workspaces for Multitasking

Screen Split divides the display into multiple sections for different tasks by resizing the windows on the screen. Its advanced options have expanded to include 4types of Picture-in Picture(PIP) Mode among 14 options.

Up-scaled Work Efficiency

OnScreen Control allows you to easily customize monitor settings with a few clicks of a mouse. Moreover, My Display Presets included within OnScreen Control offers customized picture mode for specific software. It has automatically applied to picture mode you already preset.

USB 3.0 Quick Charge

Charge the battery of a connected device quickly using the USB 3.0 port on the product.

The Big Convergence of FreeSync & 21:9 UltraWide™ QHD

The whole new FreeSync era has come. On the 34-inch 21:9 UltraWide™ QHD, you can experience the next level of gaming without any tearing and stuttering.

Game Mode

Game Mode, consisting of FPS, RTS, and Custom modes, provides a customized gaming experience that varies with genres. The mode is convenient for adjusting and optimizing the settings for each game when switching between games of different genres. The specific picture mode each genre is saved in the Quick Circle!

Fully Geared Up with Winning Features

Black Stabilizer is especially useful to detect objects including enemies that are hiding in dark areas. Dynamic Action Sync allows you to attack enemies faster with less lag time.


Growing number of game enthusiasts are tuning into what 21:9 offers for their virtual adrenaline rush. Most of them recognize that 21:9 is just better, realistic, immersive space for their field of view. But back in a while concerns were more about the game industry; would there be enough games to play on 21:9? Well, game makers definitely have stepped up and turning more of their latest with 21:9 view ratio. Just take a look at the names of the games on the list. These are not just any games, but top-notch international best & steady sellers.

Brightness 300(Typ), 240(min) cd/m2
Panel Type (TN, IPS) IPS
Screen Resolution 3440 x 1440
Screen Size (Inches) 34”
Aspect Ratio 21:9
Pixel Pitch (mm) 0.2325 x 0.2325
Viewing Angle 178/178 (CR≥10)
Colour Depth 10bits (8bit+FRC), 1.07B
Contrast Ratio 1000:1 (Typ)
Response Time (GTG) 5ms (High)
Input 100-240Vac
Power Save/Sleep Mode(Max) 1.2W
Normal Consumption On (Typical) 70W
Set with stand (WxDxH) 829.9 x 252.4 x 428.9mm 32.6” x 9.9” x 16.8”
Set without stand (WxDxH) 829.9 x 49.2 x 379.8 mm 32.6” x 1.9” x 14.9”
Set with Stand 8.4kg, 18.51lbs
Set without Stand 6.3 kg, 13.88 lbs
Box (WxDxH) 978 x 207 x 522 mm 38.5” x 8.1” x 20.5”
Box 11.3kg, 24.91lbs
D-Sub -
HDMI Yes x 2
DVI-D Yes x 1
Display Port Yes x 1
USB 1 Up and 2 Down (Port 1 Supports QuickCharge)
Thunderbolt 2.0 Yes x 2
Plug & Play Yes
Reader Mode Yes
Intelligent Auto (Auto Adjustment) Yes
Colour Calibrated Yes
ENERGY STAR® Qualified Yes
Flicker Safe Yes
Pivot / Height Adjustable - / Yes
VESA Compatible Wall Mount Yes
Speakers Yes
UPC Code
UPC Code 719192199408
Warranty 1 year parts and labour

What People Are Saying

Rated 5 out of 5 by from Terrific display! Colours are striking! I've had this monitor for a few months now and I am extremely pleased with it. IMO its colour reproduction is amazing (especially on its pre-calibrated modes). Some IPS glow is visible but expected, and on my unit it isn't bothersome at all. Connectivity is impressive, and I love the design. The base is extremely sturdy, albeit with no pivot control (but with height and swivel). AMD Freesync is also a definite plus, although I am on team green right now I can see the value of having Freesync as a feature in this kind of monitor. Response times are good, but you may notice a slight difference if you come from a TN panel and like to play fast-paced games. Overall, this monitor excels in quality, design, and reliability. You can't go wrong with this one.
Date published: 2017-02-17
  • y_2018, m_2, d_21, h_1
  • bvseo_bulk, prod_bvrr, vn_bulk_2.0.7
  • cp_1, bvpage1
  • co_hasreviews, tv_0, tr_1
  • loc_en_CA, sid_MD05259606, prod, sort_[SortEntry(order=SUBMISSION_TIME, direction=DESCENDING)]
  • clientName_lgecanada
  • bvseo_sdk, java_sdk, bvseo-
  • CLOUD, getReviews, 384ms


Simply choose a support option from the icons below: