Infrared LCD all-in-one device

He-Link infrared LCD all-in-one device is an interactive system combining high-definition display and multi-touch functionality, widely used in education and business fields. It supports precise infrared touch, features a durable design, and offers a convenient plug-and-play experience. Ideal for classroom interaction, meeting notes, and presentations, it enhances user efficiency and experience.

Screen Size: 55 inches (16:9)

Screen Type: LED LCD display

Display Area: 1211.6 x 682.5 mm (HxV)

Resolution: 3840 (H) x 2160 (V)

Color Depth: 10-bit, 1.07 billion colors

Refresh Rate: 4K at 30Hz

Brightness: ≤300 cd/m²

Contrast Ratio: 5000:1

Viewing Angle: 178°

Screen Protection: 3mm fully tempered, high-impact, anti-glare glass

Backlight Lifespan: 50,000 hours

Screen Size: 65 inches (16:9)

Screen Type: LED display

Display Area: 1428x 803 mm (HxV)

Resolution: 3840 (H) x 2160 (V)

Color Depth: 10-bit, 1.07 billion colors

Refresh Rate: 4K at 30Hz

Brightness: ≤300 cd/m²

Contrast Ratio: 5000:1

Viewing Angle: 178°

Screen Protection: 4mm fully tempered, high-impact, anti-glare glass

Backlight Lifespan: 50,000 hours

Touch Specifications

Touch Integration: Built-in, all-in-one design, front-accessible (non-external mount)

Touch Sensing Technology: Infrared touch recognition (20-point touch)

Writing Method: Finger, stylus, or any non-transparent object with a diameter of at least 5mm (multi-touch requires 8mm)

Cursor Speed: 120 points per second

Positioning Accuracy: ±2mm in over 90% of the touch area

Communication Interface: Type-B USB male connector

Touch Resolution: 32767 x 32767

Touch Durability: Virtually unlimited

Computer Response: Auto-recognition; ≤15ms

Driver: Driver-free

Touch Functionality: Supports 20-point touch operation on the computer, as well as image zoom, rotation, and scaling