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  • 34UM88-P

Key Features

  • 21:9 UltraWide™ QHD
  • IPS
  • Hardware Calibration Ready
  • sRGB over 99%
  • Color Calibrated
  • Ergonomic Stand
21:9 UltraWideTM Rules

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 UltraWideTM QHD on IPS Display

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 color expression.

The Beauty of ArcLine

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

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  Color Expression

Flawless  Color Expression

You are guaranteed an immersive artwork
through a sRGB over 9 9 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

Advanced Tech Design

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

Up-scaled Work Efficiency

Up-scaled Work Efficiency

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

Exceptional Usability

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

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<sup>TM</sup>

The Big Convergence of FreeSync & 21:9 UltraWideTM

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

Game Mode, consisting of FPS, RTS, and Custom modes,
provides a customized gaming experience that varies with genres.

Fully Geared Up with Winning Feature

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

Size (Inch) 34"
Panel Type IPS
Color Gamut (CIE1931) sRGB over 99%
Color Depth (Number of Colors) 10bits (8bit+FRC), 1.07B
Resolution 3440 x 1440
Brightness (Typ.) 300(Typ), 240(min) cd/m2
Contrast Ratio 1000:1 (Typ)
Response Time (Typ.) 14ms
Response Time (GTG) 5ms (High)
Viewing Angle(CR≥10) 178/178 (CR≥10)
Input / Output
HDMI 2 (ver2.0)
- H-Frequency(HDMI) 30 ~ 90KHz
- V-Frequency(HDMI) 56 ~ 61Hz
DisplayPort 1 (ver1.2)
- H-Frequency(DisplayPort) 30 ~ 90KHz
- V-Frequency(DisplayPort) 56 ~ 61Hz (FreeSync 40~60Hz)
Thunderbolt 2
- H-Frequency(Thunderbolt) 30 ~ 90KHz
- V-Frequency(Thunderbolt) 56 ~ 61Hz
Headphone Out 1
- Up-stream 1 (USB3.0)
- Down-stream 2 (USB3.0) * included Quick Charge for port 1
Power Speaker 7W*2
Audio Tuning MaxxAudio
Type Adapter
Input 100 ~ 240V
Power Consumption
Normal On(EPA7.0) 56.73W
Normal On(Typ.) 70W
Power Save/Sleep Mode(Max) 1.2W
DC Off(Max) 0.3W
Freesync Yes (DP 40~60Hz)
Game Mode Yes
DAS Mode Yes
Black Stabilizer Yes
Special Feature
Picture Mode Custom, 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
Ratio Wide, Original, Cinema 1, Cinema 2, 1 : 1
Key Lock Yes
Response Time Control Yes
Quick Charge Yes
Flicker Safe Yes
Smart Energy Saving Yes
Automatic Standby Yes
Reader Mode Yes (Picture Mode)
Six Axis Control Yes
Color Calibrated Yes
H/W Calibration (True Color Finder) Yes
Dual EDID (H/W) Yes
Application Software
Dual controller Yes
Screen split2.0 Yes
My Display Preset (in OSC) Yes
OnScreen Control (OSC) Yes
Tilt (Angle) -5~20 degree
Height(Range) 120mm
Dimension (W*D*H, 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
Weight (kg)
Set (with Stand) 8.4
Set (without Stand) 6.3
Wall Mount
Wall Mount size (mm) 100 x 100 (VESA compatible)
UL (cUL) Yes
CCC (for China) Yes
BSMI (for Taiwan) Yes
EPA 7.0 Yes
ErP Yes
EPEAT Gold Yes
Windows Yes
DisplayPort Yes
Power Cord Yes
HDMI Cable Yes


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  • Phone

    Call an LG Support Representative on:

    Hong Kong:(852) 3543-7777

    Macau:(853) 0800-498

    Monday to Friday : 09:00 to 19:00
    Saturday - Sunday : Close
    Public Holidays: Close