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34" 21:9 UltraWide™ WQHD IPS LED Monitor (34" Diagonal)

  • 34UM88C-P

Key Features

  • UltraWide™ QHD 3440x1440 IPS Display
  • sRGB Over 99%
  • Hardware Calibration Ready
  • USB 3.0 Quick Charge
  • Screen Split 2.0 (PIP Mode)

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 Curved UltraWide™ QHD on IPS Display

21:9 Curved UltraWide™ QHD (3440*1440) display offers wrap-around field of view on a wide screen real estate. With IPS display, visual comfort is guaranteed while ensuring vivid and accurate color expression.

The Beauty of ArcLine

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

Flawless Color Expression

You are guaranteed an immersive artwork through a sRGB over 99% color space.
Color accuracy is ensured via color calibration tests which are conducted on the production line and hardware calibration ready with a built-in scaler.

Advanced Tech Design

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

Up-scaled Work Efficiency

Screen Split and PIP Mode bring you to be the real multi-tasker.

Exceptional Usability

OnScreen Control and My Display Presets allow you to easily customize monitor settings with a few clicks of a mouse.

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™

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.

Fully Geared Up with Winning Feature

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

Contact Information

For any inquiries about purchasing or technical supports, please find your local office in your country.
If there is no listing for your country, please contact the nearest country to yours.

Size(Inch)34" Flat
Panel TypeIPS
Color Gamut (CIE1931)sRGB over 99%
Color Depth(Number of Colors)10bits (8bit+FRC), 1.07B
Pixel pitch(mm)0.2325mm x 0.2325mm
Resolution3,440 x 1,440
Brightness(Typ.)300 cd/m²
Contrast Ratio(Original)1000:1
Response Time_Typ.(on/off)14ms
Viewing Angle(CR≥10)178/178
Jack Input / Output
HDMIYes (ver2.0, 2ea)
DisplayPortYes (ver1.2)
USB Type-CNo
Headphone OutYes
PC Audio InNo
IR In / OutNo
Google Cast (embed)No
USB Up-streamYes (USB3.0 1ea)
USB Down-streamYes (USB3.0 2ea) * included Quick Charge for port 1
Audio output (watt)Speaker 7W*2
Audio TuningMaxx Audio
Normal On (EPA 6.0)56.73W
Normal On (typ.)65W
Power Save/Sleep Mode (Max)1.2W
DC Off (Max)0.3W
H-Frequency (D-sub)No
V-Frequency (D-sub)No
H-Frequency (DVI)No
V-Frequency (DVI)No
H-Frequency (HDMI)30 ~ 90kHz
V-Frequency (HDMI)56 ~ 61Hz
H-Frequency (DisplayPort)30 ~ 90KHz
V-Frequency (DisplayPort)56 ~ 61Hz (FreeSync 40 ~ 60Hz)
H-Frequency (Thunderbolt)No
V-Frequency (Thunderbolt)No
Special Feature
Picture ModeCustom, Reader, Photo, Cinema, Dark Room 1, Dark Room 2, Color Weakness, FPS Game 1, FPS Game 2, RTS Game, Custom (Game), Calibration 1, Calibration 2
RatioWide, Original, Cinema 1, Cinema 2, 1 : 1
PIP- (PIP mode in Screen Split)
Key LockYes
Response Time ControlNo
Quick ChargeYes
FreeSyncYes (DP 40~75Hz)
Game ModeYes
DAS ModeYes
Black StabilizerYes
Flicker SafeYes
Smart Energy SavingYes
Automatic StandbyYes
Reader ModeYes
Six Axis ControlYes
SUPER + ResolutionNo
Color CalibratedYes
H/W Calibration (True Color Finder)Yes
Dual ControllerYes
Screen split2.0 (in OSC)Yes
My Display Preset (in OSC)Yes
OnScreen Control (OSC)Yes
Dual EDID (H/W)Yes
One Click Stand Set-upNo
Tilt (Angle)-5° ~ 20° Degree
Swivel (Angle)No
Height (Range)120mm
Pivot (Angle)No
Dimensions - WxDxH (mm)
Set (with Stand)829.9 x 252.4 x 428.9 (Down) '829.9 x 252.4 x 548.9 (Up)
Set (without Stand)829.9 x 49.2 x 379.8
Box978 x 207 x 522
Set with Stand (Kg)8.4
Set without Stand (Kg)6.3
Wall Mount
Wall Mount size (mm)100 x 100 (VESA compatible)
Packing MaterialEPS
Stacking TypeVertical
Stand Packing TypeBase Detach
Box Printing TypeOffset
HandleHand Hole
TCO 6.0No
UL (cUL)Yes
BSMI (for Taiwan)Yes
EPA 6.0Yes
Medical CertificatioinNo
Power CordYes
Display PortYes
USB Type C to CNo
PC AudioNo
Cable holderYes

Business Resources

Most comprehensive document of product setup and usage.

To access more technical documentation and downloads, please visit the LG B2B Partner Portal.