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38'' Curved 21:9 UltraWide™ IPS Display

  • 38UC99-W

Key Features

  • 38-inch Curved UltraWide™ IPS Display
  • 3840x1600 QHD + Resolution
  • USB Type-C™
  • Rich Bass
  • Bluetooth Audio

3840x1600 QHD+ Screen Real Estate

3840x1600 QHD+
Screen Real Estate

The largest 38-inch 21:9 Curved UltraWide Monitor with QHD+ (3840x1600) wide screen real-estate ideal for using various programs - with controlling and
monitoring more thumbnails or timelines- simultaneously. Perfect fit for content creators. Plus its dimension gives sufficient room for large-scale work that requires with detailed touch.

Time-Saving Multi-tasking on 3840 x 1600 QHD+

Time-Saving Multi-tasking on
3840 x 1600 QHD+

3840x1600 resolution is equivalent to 3 times that of a 16:9 Full HD (1920x1080) space and 24 larger than a 34” 21:9 QHD real estate, making it ideal for viewing and processing more information. Its curved panel enables viewing the monitor with much contents with comfort and focus.

USB Type-C™  & USB 3.0 Quick Charge

USB Type-C™ &
USB 3.0 Quick Charge

With USB Type-C™, Display Connection, transfers data and charge your latest Macbook or mobile device, all at the same time using a single cable Charge your Android phone with USB 3.0 Quick Charge at the same time. Simplify your workstation without hassles of wires by centralizing connection to the monitor.

Easy User Interface with  OnScreen Control

Easy User Interface with
OnScreen Control

Every step of installing and controlling is easy without any hassle.
Especially the OnScreen Control Software allows you adjust customize all the display options with a few clicks.
*To download OnScreen Control: visit > search for the product (ex. 38UC99) > Download OnScreen Control in Supports category

Optimized Display with My Display Preset

Optimized Display with
My Display Preset

Preset Custom Color Environments on Your Screen with My Display Preset. It includes multiple color mode presets for various viewing environments. A variety of color modes ranging from basic to custom calibration modes accommodate the wide spectrum of needs that professionals require.

14 Types of Screen Split Options

14 Types of Screen Split Options

Through OnScreen Control Software, select most needed screen setting
among 14 of Screen Split options and optimize Multi-tasking Windows organization and screen real estate use.

Mac and Windows in One Big Screen with Dual Linkup

Mac and Windows in One Big Screen with Dual Linkup

Two Individual devices connected to the monitor in a 1:1 spatial ratio, allowing the monitor to divide up the screen for both outputs. While those two devices are show in a single monitor, you can even fuse the contents from one device to the other one.

Fully Supported Gaming Features

Fully Supported Gaming Features

With gaming-optimized features, you not only can enjoy your work but also your favorite games as a winner.

AMD FreeSync™ Technology

AMD FreeSync™ Technology

You can play without a frame loss with AMD FreeSync™ Technology, which eliminates tearing and stuttering that occur from the difference between a graphics
card’s frame rate and monitor’s refresh rate. It allows smoother character movements and fluid on-screen motion in games on the highest visual settings.

Fluid Motion with  “1ms Motion Blur Reduction”

Fluid Motion with
“1ms Motion Blur Reduction”

Your monitor’s response time is critical to see moving objects without afterimages in games. "1ms Motion Blur Reduction¹" enables clear object display when it requires quick response to different situations in games, enhancing user’s immersive experience. Enjoy the clear motion with rich and vivid colors from any angle of IPS display.

How “1ms Motion Blur Reduction” Works

While 1ms Motion Blur Reduction is activated,
it produces a black image insertion effect by blinking the backlight.
It reduces motion blur since the backlight is off during the
rising & falling period of the liquid crystal.
Therefore, the response time is enhanced while 1ms Motion Blur Reduction is ON.

Size (Inch) 38" Curved
Panel Type IPS
Color Gamut (CIE1931) sRGB over 99%
Color Depth (Number of Colors) 10bits (8bit+FRC), 1.07B
Resolution 3840 x 1600
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 ~ 101KHz
- V-Frequency(HDMI) 56 ~ 61Hz
DisplayPort 1 (ver1.2)
- H-Frequency(DisplayPort) 30 ~ 101KHz
- V-Frequency(DisplayPort) 56 ~ 61Hz (FreeSync 52~75Hz)
USB Type-C 1
- H-Frequency(Thunderbolt) 30 ~ 101KHz
- V-Frequency(Thunderbolt) 56 ~ 61Hz
Headphone Out 1
- Down-stream 2 (USB3.0) * included Quick Charge for port 1
Power 10W*2 with Bluetooth
Audio Tuning (Rich Bass)
Type Adapter
Input 100 ~240 , 50/60Hz
Ouptput (USB Type-C PD) 60W
Power Consumption
Normal On(EPA7.0) 120W
Normal On(Typ.) 57W
Power Save/Sleep Mode(Max) 1.2W
DC Off(Max) 0.3W
Freesync Yes (DP 52~75Hz)
Game Mode Yes
DAS Mode Yes
Black Stabilizer Yes
1ms Motion Blur Reduction 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)
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
SUPER+ Resolution Yes
Color Calibrated Yes
Dual EDID (H/W) Yes
One Click Stand Set-up Yes
Application Software
Dual controller Yes
Screen split2.0 Yes
My Display Preset (in OSC) Yes
OnScreen Control (OSC) Yes
Tilt (Angle) -5~15 Degree
Height(Range) 110mm
Dimension (W*D*H, mm)
Set (with Stand) 897.2 x 230.4 x 466.2
Set (without Stand) 897.2 x 91.5 x 394.0
Weight (kg)
Set (with Stand) 9.3kg
Set (without Stand) 7.7kg
Wall Mount
Wall Mount size (mm) 100 x 100 (VESA compatible)
UL (cUL) Yes
CCC (for China) Yes
BSMI (for Taiwan) Yes
ErP Yes
EPEAT Gold Yes
Windows Yes
Display Port Yes
Power Cord Yes
HDMI Cable Yes


Simply choose a support option from the icons below:

  • 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