LG UltraFine™ 40-inch Nano IPS Black 5K2K with Thunderbolt™ 5
LG 40U990A-W


5K2K Display. Sharper, wider, clearer.
The 5K2K Nano IPS Black display (5120×2160) offers 33% more pixels than standard 4K UHD (3840×2160), providing a wider canvas to view more content and reducing the need to switch between programs. Its high resolution delivers razor-sharp images and precise detail, making it suitable for professional video editing, graphic design, and any visual work where accuracy is critical. The vivid clarity allows you to spot even the fine details without constant zooming or panning.
Professional display. Professional performance.
For tasks like color grading, music production, and coding, the 40-inch 5K2K display provides the clarity and screen area needed for focus and precision.

Every colour nuance, fully realized
VESA DisplayHDR™ 600 offers bright highlights, deep shadows, and accurate colour representation for creative professionals. It enhances textures, elements, and natural interplay of light and shadow.

The full spectrum of colors you imagined
99% (Typ.) of the DCI-P3 color gamut delivers a 25% wider color gamut than sRGB, covering nearly all the colors used in print, digital, and broadcast content. From vivid to subtle shades, accurate color reproduction, enabling a realistic video, photo output.
2000:1 deeper black and rich shadows
Because contrast ratio impacts accurate color representation, Nano IPS Black enhances the contrast ratio from the standard IPS 1000:1 to 2000:1—delivering vibrant colors and sharper detail in objects, shadows, and backgrounds. Experience deeper blacks and richer shadows that remain consistent color expression on the screen from edge to edge, and a heightened sense of realism that conveys your visual outputs naturally.

Protect your eyes, preserve every detail
This display is verified with TÜV Rheinland’s 5-Star Eye Comfort rating: new eye comfort 3.0, meeting the high standards for eye comfort. It features a high refresh rate, accurate color reproduction, and built-in low blue light technology that combines RGB hardware and software adjustments to reduce harmful emissions without compromising color.

World’s first Thunderbolt™5 5K2K Display
Thunderbolt™ 5 enables the production of commercial outputs such as documentary videos, movies, and game titles on an outstanding 5K2K display. It also offers data transfers that are twice as fast to connected devices compared to Thunderbolt™ 4 and allows for charging your laptop (up to 96W) through a single cable, ensuring stability, scalability, and security.

Switch swiftly for creating
LG Switch app optimizes your monitor for both work and play. Effortlessly customize your preferred image quality and brightness with personalized picture wizard. Plus, you can split the display into 11 options and quickly launch your video call platform, making it even more convenient.
Multiple setups with multiple ports
Connect your laptop, camera, tablet, or external storages through versatile ports including Thunderbolt™ 5, HDMI 2.1, and USB-C. Get smooth and stable performance without extra adapters or splitters.
The Productive Workstation
Thunderbolt™ 5 and DisplayPort support 5K2K Daisy Chain for streamlined setup. So you can connect two monitors and a laptop for enhanced productivity.

AMD FreeSync Premium
With FreeSync Premium technology, it helps achieve seamless, fluid movement when mixing sound while reviewing fast-paced games or high-resolution movies by reducing screen tearing and stuttering.

Feel every beat and scene
Dive into your content and let the action surround you. Dual 10W built-in speakers with Rich Bass and AMD FreeSync technology brings every scene to play with deeper sound and smoother visuals.

All specs
LG 40U990A-W 40″ UltraFine evo 5K2K
DISPLAY
- Aspect Ratio 21:9
- Color Gamut (Typ.) DCI-P3 99% (CIE1976)
- Color Gamut (Min.) DCI-P3 95% (CIE1976)
- Contrast Ratio (Min.) 1400:1
- Contrast Ratio (Typ.) 2000:1
- Curvature 2500R
- Panel Type IPS Black
- Pixel Pitch [mm] 0.1815 x 0.1815
- Refresh Rate (Max.) [Hz] 120
- Resolution 5120 x 2160
- Response Time 5ms (GtG at Faster)
- Size [cm] 100.86cm
- Size [Inch] 39.7
- Viewing Angle (CR≥10) 178º(R/L), 178º(U/D)
- Color Depth (Number of Colors) 1.06B
- Brightness (Typ.) [cd/m²] 450 cd/m²
- Brightness (Min.) [cd/m²] 360 cd/m²
FEATURES
- AMD FreeSync™ Premium
- User Defined Key YES
- Flicker Safe YES
- HDR 10 YES
- HDR Effect YES
- HW Calibration Ready
- Nano IPS™ Technology YES
- VRR YES
- VESA DisplayHDR™ 600
- Super Resolution+ YES
- Smart Energy Saving YES
- Reader Mode YES
- PIP YES
- PBP YES (2PBP)
- Color Weakness YES
- Color Calibrated in Factory YES
- Black Stabilizer YES
- Auto Input Switch YES
- Auto Brightness YES
- Dynamic Action Sync YES
CONNECTIVITY
- DisplayPort YES(1ea)
- Headphone out 4-pole (Mic + Sound)
- USB-C YES (1Up / 4Down)
- LAN (RJ-45) YES
- Thunderbolt YES(In 1ea / Out 1ea)
- Thunderbolt (Data Transmission) YES
- Thunderbolt (Power Delivery) 96W
- USB-C (Data Transmission) YES
- USB Downstream Port USB-C *4EA(15W*1EA, 4.5W*3EA) 10Gbps, USB-A *2EA 10Gbps
- USB Upstream Port YES(via Thunderbolt & USB-C 10Gbps)
- DP Version 2.1 (UHBR 13.5)
- Daisy Chain YES(UHD/120Hz)
- Built-in KVM YES
- HDMI YES(2ea)
POWER
- AC Input 100~240V (50/60Hz)
- Type Built-in Power
- Power Consumption (Sleep Mode) Less than 1.2W
- Power Consumption (DC Off) Less than 0.3W
MECHANICAL
- Display Position Adjustments Tilt/Height/Swivel
- Wall Mountable [mm] 100 x 100 mm
DIMENSIONS/WEIGHTS
- Dimension in Shipping (W x H x D) [mm] 1206 * 534 * 201
- Dimension without Stand (W x H x D) [mm] 947.7 * 419.8 * 106.3 mm
- Dimension with Stand (W x H x D) [mm] 947.7 * 614.3 * 260 mm
- Weight in Shipping [kg] 17.8 kg
- Weight without Stand [kg] 9.2 kg
- Weight with Stand [kg] 14.1 kg
ACCESSORY
- Display Port YES(2.1)
- USB-C YES
- HDMI YES
- Thunderbolt YES
SOUND
- Rich Bass YES
- Speaker 10W x 2
SW APPLICATION
- Dual Controller YES
- LG Calibration Studio (True Color Pro) YES











