LG UltraWide 34U640B-B - LED monitor - curved - 34" - HDR
Main Specification
| 86.4 cm (34") Black | |
| Height adjustment | |
| USB upstream port type: USB Type-C HDMI HDMI version: 2.0 DisplayPorts quantity: 1 DisplayPort version: 1.4 | |
| Screen shape: Curved | |
| Maximum refresh rate: 144 Hz Response time: 5 ms Response time measurement type: GTG (Gray to Gray) | |
| 3440 x 1440 pixels UltraWide Quad HD Panel type: VA | |
| Energy efficiency class (SDR): F |
Display
| Display diagonal | 86.4 |
|---|---|
| Display resolution | 3440 x 1440 |
| HD type | UltraWide Quad HD |
| Native aspect ratio | 21:9 |
| Display technology | LCD |
| Panel type | VA |
| Touchscreen | No |
| Response time | 5 |
| Response time measurement type | GTG (Gray to Gray) |
| Anti-glare screen | Yes |
| Screen shape | Curved |
| Screen curvature rating | 1800R |
| Contrast ratio (typical) | 4000:1 |
| Maximum refresh rate | 144 |
| Refresh rate optimizor | Yes |
| Display number of colours | 1.07 billion colours |
| Pixel pitch | 0.232 x 0.232 |
| Pixel density | 110 |
| Display diagonal (metric) | 86.4 |
| High Dynamic Range (HDR) supported | Yes |
| High Dynamic Range (HDR) technology | High Dynamic Range 10 (HDR10), HDR Effect |
| Colour gamut standard | sRGB |
| sRGB coverage (typical) | 99 |
Performance
| NVIDIA G-SYNC | No |
|---|---|
| AMD FreeSync | Yes |
| AMD FreeSync type | FreeSync Premium |
| Flicker-free technology | Yes |
| Smart modes | Energy saving |
Multimedia
| Built-in speaker(s) | No |
|---|---|
| Built-in camera | No |
Design
| Market positioning | Consumer |
|---|---|
| Product colour | Black |
Ports & interfaces
| Built-in USB hub | Yes |
|---|---|
| USB hub version | 3.2 Gen 1 (3.1 Gen 1) |
| USB upstream port type | USB Type-C |
| Number of upstream ports | 1 |
| Number of downstream ports | 2 |
| Number of USB Type-C upstream ports quantity | 1 |
| USB Type-A downstream ports quantity | 2 |
| USB Type-C downstream ports quantity | 1 |
| USB Power Delivery (USB PD) | Yes |
| USB Power Delivery up to | 65 |
| HDMI | Yes |
| HDMI ports quantity | 2 |
| HDMI version | 2.0 |
| DisplayPorts quantity | 1 |
| DisplayPort version | 1.4 |
| Audio output | Yes |
| Headphone out | Yes |
| Headphone outputs | 1 |
| Headphone connectivity | 3.5 mm |
| HDCP | Yes |
| HDCP version | 2.2 |
Ergonomics
| VESA mounting | Yes |
|---|---|
| Panel mounting interface | 100 x 100 |
| Wall mountable | Yes |
| Height adjustment | Yes |
| Tilt adjustment | Yes |
| Picture-in-Picture | Yes |
| On Screen Display (OSD) | Yes |
Power
| Energy efficiency class (SDR) | F |
|---|---|
| Energy efficiency class (HDR) | G |
| Energy consumption (SDR) per 1000 hours | 30 |
| Energy consumption (HDR) per 1000 hours | 39 |
| Power consumption (typical) | 32.4 |
| Power consumption (standby) | 0.5 |
| AC input voltage | 100 - 240 |
| AC input frequency | 50/60 |
| Power supply type | External |
| Energy efficiency scale | A to G |
Weight & dimensions
| Width (with stand) | 809.1 |
|---|---|
| Depth (with stand) | 220 |
| Height (with stand) | 464.4 |
| Weight (with stand) | 7.7 |
| Width (without stand) | 809.1 |
| Depth (without stand) | 91.5 |
| Height (without stand) | 359 |
| Weight (without stand) | 5.6 |
Packaging data
| Package width | 986 |
|---|---|
| Package depth | 188 |
| Package height | 470 |
| Package weight | 10.4 |
| Package type | Box |
Packaging content
| Stand included | Yes |
|---|---|
| Cables included | AC, DisplayPort, HDMI, USB Type-C |
| Power adapter included | Yes |
| Quick start guide | Yes |
| DisplayPort cable length | 1.5 |
| HDMI cable length | 1.5 |
Other features
| Country of origin | China |
|---|---|
| Brand specific technologies | Black Stabiliser, DAS Mode, Eye care, Super+ Resolution |
Key selling points
- 34-inch 21:9 UltraWide™ WQHD (3440×1440) Curved Monitor
- HDR10 and 99% sRGB coverage (typ.)
- 144Hz refresh rate
- USB Type-C®, DisplayPort, HDMI ports and built in USB Hub
- AMD FreeSync™ Premium
- Tilt and height display adjustment
References
MPN: 34U640B-B.AEK
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04/06/2026 01:30:48