Description
LG 40U990A-W, 100.8 cm (39.7"), 5120 x 2160 pixels, WUHD, LCD, Black
The World’s First 5K2K Monitor with Thunderbolt™ 5
The LG UltraFine™ 40U990A is the world’s first 5K2K widescreen monitor with Thunderbolt™ 5, delivering ultra-fast data transfer, 96W charging, and dual display support. The monitor's 40” curved (2500R), Nano IPS Black panel offers brilliant color, and spectacular contrast - a new go-to display for creators, multritaskers and gamers.
5K2K Means More Pixels for More Creative Control
The 5K2K (5120x2160) Nano IPS Black display offers 33% more pixels than standard 4K UHD, delivering ultra-wide resolution, vivid color, and razor-sharp detail—creating a spacious, precise workspace ideal for video editing, graphic design, photography, and color-critical tasks.
Built for creators. Ready for professionals.
Built for creative flow, the UltraFine™ 5K2K screen makes it easy to work across complex timelines, layered interfaces, and multiple windows—ideal for editing, producing, and programming.
VESA DisplayHDR™ 600 Meets Nano IPS Black Brilliance
VESA DisplayHDR™ 600 and Nano IPS Black combine to deliver deep blacks, vivid highlights, and cinematic color—ideal for creators who need precision in light, shadow, and texture.
Up to 99% DCI-P3 Color Brilliance for Visual Pros
With up to 99% DCI-P3 color gamut coverage, this UltraFine™ display delivers bold, vibrant color across a wide spectrum—ideal for impactful video, photo, and design work in print, digital, and broadcast formats.
2000:1 Contrast for Stunning Visual Depth
Nano IPS Black enhances contrast to 2000:1, revealing richer shadows, deeper blacks, and sharper detail—perfect for bold color, improved depth, and edge-to-edge consistency.
5K2K Production Powered by Thunderbolt™ 5
Thunderbolt™ 5 supports commercial-level video, film, and game production with faster data transfer, 96W charging, and seamless 5K2K output—all through a single, stable, high-speed cable.
Daisy Chain Enhances Multitasking Efficiency
Daisy chain two monitors and a laptop via Thunderbolt™ 5 and DisplayPort—simplifying your workspace while expanding screen space for multitasking, content creation, or focused productivity
Versatile Ports for Limitless Possibilities
Thunderbolt™ 5, HDMI 2.1 (x2), DisplayPort 2.1 (UHBR 13.5) and USB-C let you connect laptops, cameras, and drives—no adapters needed. Enjoy stable, streamlined performance across creative, gaming, or professional workflows.
Dual Speakers. Deep, Immersive Sound.
Let the action surround you with dual speakers and Rich Bass—delivering deeper, fuller sound that enhances cinematic scenes.
FreeSync™ Premium Smooths Every Frame
FreeSync™ Premium keeps motion smooth and responsive, reducing screen tearing and stutter while mixing audio, gaming, or reviewing high-resolution video.
Personalized Your Display with Switch App
Easily customize image settings, split your screen into 11 layouts, and launch video calls instantly with the LG Switch App—streamlining your setup for productivity and entertainment.
Designed for Comfort and Focus
The narrow bezeled, 3-sided virtually borderless design and compact L-stand save space and reduce distractions, while tilt, height, and swivel adjustments support comfort and focus during long creative sessions.
Specifications
| Brand | LG ELECTRONICS |
|---|---|
| Manufacturer part no. | 40U990A-W.AEK |
| Our part no. | CO97062 |
| EAN | 8806096511282 |
| Category | Monitors & Displays › Monitors |
| Weight | 17.8 kg |
| Display | |
| Display diagonal | 100.8 cm (39.7") |
| Display resolution | 5120 x 2160 pixels |
| HD type | WUHD |
| Native aspect ratio | 21:9 |
| Display technology | LCD |
| Panel type | Nano IPS |
| LED backlight | Yes |
| Backlight type | Edge-Lit |
| Touchscreen | No |
| Display brightness (typical) | 450 cd/m² |
| Display brightness | 400 cd/m² |
| Display brightness (min) | 320 cd/m² |
| Response time measurement type | GTG (Gray to Gray) |
| Screen shape | Curved |
| Screen curvature rating | 2500R |
| Aspect ratio | 32:9 |
| Contrast ratio (typical) | 2000:1 |
| Maximum refresh rate | 120 Hz |
| Viewing angle, horizontal | 178° |
| Viewing angle, vertical | 178° |
| Display number of colours | 1.06 billion colours |
| Response time (fast) | 5 ms |
| Pixel pitch | 0.1815 x 0.1815 mm |
| Pixel density | 139 ppi |
| Display diagonal (metric) | 101 cm |
| High Dynamic Range (HDR) supported | Yes |
| High Dynamic Range (HDR) technology | DisplayHDR 600, HDR Effect, High Dynamic Range 10 (HDR10) |
| Colour gamut standard | DCI-P3 |
| Colour gamut | 99% |
| 3D | No |
| DCI-P3 coverage | 99% |
| Performance | |
| NVIDIA G-SYNC | No |
| AMD FreeSync | Yes |
| AMD FreeSync type | FreeSync Premium |
| Multimedia | |
| Number of speakers | 2 |
| RMS rated power | 20 W |
| Built-in speaker(s) | Yes |
| Built-in microphone | No |
| Multiroom | No |
| Built-in camera | No |
| Adaptive Sound Pro | No |
| Audio Return Channel (ARC) | No |
| Design | |
| Market positioning | Professional |
| Product colour | Black |
| Refurbished | No |
| Ports & interfaces | |
| USB required | No |
| Built-in USB hub | No |
| USB upstream port type | USB Type-C |
| Number of USB Type-C upstream ports quantity | 1 |
| USB Type-C downstream ports quantity | 4 |
| HDMI | Yes |
| HDMI ports quantity | 2 |
| HDMI version | 2.1 |
| DisplayPorts quantity | 1 |
| DisplayPort version | 2.1 |
| Headphone out | Yes |
| Built-in KVM switch | Yes |
| HDCP | Yes |
| HDCP version | 2.2 |
| Charging port type | USB Type-C |
| Network | |
| Bluetooth | No |
| Ethernet LAN | Yes |
| Ergonomics | |
| VESA mounting | Yes |
| Panel mounting interface | 100 x 100 mm |
| Wall mountable | Yes |
| Cable lock slot | No |
| Height adjustment | Yes |
| Swivelling | Yes |
| Tilt adjustment | Yes |
| Picture-in-Picture | Yes |
| On Screen Display (OSD) | No |
| Plug and Play | Yes |
| Power | |
| Energy efficiency class (SDR) | F |
| Energy efficiency class (HDR) | G |
| Energy consumption (SDR) per 1000 hours | 45 kWh |
| Energy consumption (HDR) per 1000 hours | 58 kWh |
| Power consumption (typical) | 40 W |
| Power consumption (standby) | 1.2 W |
| Power consumption (off) | 0.3 W |
| AC input voltage | 100 - 240 V |
| AC input frequency | 50/60 Hz |
| Power supply type | Internal |
| Energy efficiency scale | A to G |
| Weight & dimensions | |
| Width (with stand) | 947.4 mm |
| Depth (with stand) | 259.1 mm |
| Height (with stand) | 614.7 mm |
| Weight (with stand) | 14.1 kg |
| Width (without stand) | 947.4 mm |
| Depth (without stand) | 106.7 mm |
| Height (without stand) | 419.1 mm |
| Weight (without stand) | 9.21 kg |
| Packaging data | |
| Package width | 1206.5 mm |
| Package depth | 200.7 mm |
| Package height | 419.1 mm |
| Package weight | 17.8 kg |
| Package type | Box |
| Packaging content | |
| Stand included | Yes |
| Swivel arm | No |
| Cables included | DisplayPort, HDMI, Thunderbolt, USB Type-C |
| Power adapter included | Yes |
| Remote control included | No |
| Quick start guide | Yes |
| Manual | Yes |
| Installation CD | No |
| Remote control batteries included | No |
| Other features | |
| Country of origin | China |
| Brand specific technologies | Black Stabilizer |
| Low input lag | No |
| FPS counter | No |
| Picture-by-Picture (PbP) | Yes |
| Supplied AC adapter type | 144, - |