LG 34″ UltraWide™ 144Hz WQHD Curved (1800R) Monitor with USB-C, HDR 10, and sRGB 99%

LG 34U640B-B

21:9 WQHD Curved Display

The UltraWide™ WQHD (3440×1440) resolution with a 21:9 aspect ratio offers ample screen space to run multiple programs simultaneously, enhancing work efficiency. The 1800R curvature follows the natural field of view to reduce distortion, while the 3-side virtually borderless screen provides an unobstructed, wide display for a more immersive and comfortable viewing experience.

HDR10 with sRGB 99% true-to-life color with advanced color accuracy

HDR10 compatibility and 99% sRGB coverage provide accurate color reproduction and tone mapping in HDR scenes.

Fluid gaming experience with 144Hz refresh rate

Delivers smooth and responsive performance with a 144Hz refresh rate, delivering fluid visuals and clearer motion for more responsive gameplay that gives you a competitive edge.

AMD FreeSync™ Premium

Smooth motion that keeps you immersed. Powered by AMD FreeSync™ Premium certification, this monitor provides tear-free, ultra-smooth visuals and low latency, delivering unmatched gaming precision and fluidity.

USB Type-C® with 65W Power Delivery all-in-one USB-C connectivity

This monitor offers USB Type-C®, DisplayPort, two HDMI ports, and two USB-A ports to ensure smooth connectivity with various devices. The USB Type-C® port supports both display output and data transfer, allowing easy connection to your laptop with a single cable.

Dual Controller (KVM Switch)

Control multiple devices with a single monitor. Work seamlessly across two PCs with one monitor, keyboard, and mouse—just drag and drop files using the Dual Controller. The KVM Switch enables control of multiple devices with one keyboard, mouse, and monitor. The cables included in the package are USB-C, HDMI and DP.

LG Switch app

You can readily divide the whole display into up to 6 sections, change the theme design, or even launch a video call platform with a mapped hotkey. It also supports PBP and PIP modes for efficient multitasking across multiple input sources.

Clutter-free with slender stand

Experience our 3-side virtually borderless design with an adjustable base that supports both tilt and height control. Its slender, clutter-free stand minimizes desk space and reduces unused space, creating a cleaner and more refined workspace.

All specs

LG 34U640B-B

DISPLAY

• Aspect Ratio: 21:9
• Size [Inch]: 34
• Size [cm]: 86.42cm
• Response Time: 5ms (GtG at Faster)
• Resolution: 3440 x 1440
• Refresh Rate (Max.) [Hz]: 144
• Pixel Pitch [mm]: 0.23175 x 0.23175
• Panel Type: VA
• Viewing Angle (CR≥10): 178º(R/L), 178º(U/D)
• Contrast Ratio (Typ.): 4000:1
• Contrast Ratio (Min.): 3000:1
• Color Gamut (Typ.): sRGB 99% (CIE1931)
• Color Gamut (Min.): sRGB 95% (CIE1931)
• Color Depth (Number of Colors): 1.07B
• Brightness (Typ.) [cd/m²]: 300 cd/m²
• Brightness (Min.) [cd/m²]: 240 cd/m²
• Curvature: 1800R

FEATURES

• AMD FreeSync™: FreeSync Premium
• Flicker Safe: YES
• Auto Input Switch: YES
• Black Stabilizer: YES
• Color Calibrated in Factory: YES
• Color Weakness: YES
• Crosshair: YES
• Dynamic Action Sync: YES
• VRR: YES
• HDR 10: YES
• PBP: YES (2PBP)
• PIP: YES
• Reader Mode: YES
• Smart Energy Saving: YES
• Super Resolution+: YES

CONNECTIVITY

• DisplayPort: YES(1ea/ver1.4)
• USB Downstream Port: YES(2ea/ver3.2 Gen1)
• HDMI: YES(2ea)
• Headphone out: 3-pole (Sound Only)
• USB-C: Yes (1Up)
• USB-C (Data Transmission): YES
• USB-C (Power Delivery): 65W

POWER

• AC Input: 100~240V (50/60Hz)
• Type: External Power(Adapter)
• Power Consumption (Sleep Mode): Less than 0.5W
• Power Consumption (DC Off): Less than 0.3W

MECHANICAL

• Display Position Adjustments: Tilt/Height
• Wall Mountable [mm]: 100 x 100 mm

DIMENSIONS/WEIGHTS

• Dimension in Shipping (W x H x D) [mm]: 986 x 470 x 188 mm
• Dimension with Stand (W x H x D) [mm]: 809.1 x 464.4 x 220 mm
• Dimension without Stand (W x H x D) [mm]: 809.1 X 359 X 91.5 mm
• Weight with Stand [kg]: 7.7kg
• Weight without Stand [kg]: 5.6kg
• Weight in Shipping [kg]: 10.4kg

ACCESSORY

• Display Port: YES
• HDMI: YES
• USB-C: Yes

SW APPLICATION

• Dual Controller: YES