Dahua 75-inch 4K Smart Interactive Whiteboard (LPH75-ST470)

The Dahua 75-inch Smart Interactive Whiteboard (LPH75-ST470) is a professional 4K UHD collaboration display designed for classrooms, conference rooms, and hybrid workspaces. Featuring a DLED panel with Zero Air Gap technology, it delivers sharp visuals with improved touch precision and reduced parallax. Powered by Android 11 and an octa-core processor, it ensures smooth performance for multitasking and interactive applications. With advanced multi-touch support, wireless screen sharing, and versatile connectivity including USB-C with power delivery, this whiteboard enhances productivity, engagement, and seamless communication.

Product Features

75-inch 4K Ultra HD Display with Zero Air Gap

The large 75-inch screen features 3840 x 2160 resolution with Zero Air Gap technology, providing crisp visuals, accurate touch response, and reduced visual distortion for a natural writing experience.

High-Performance Android System

Powered by an octa-core processor with a combination of A73 and A53 cores, the whiteboard runs on Android 11 for efficient multitasking. It also supports Windows integration via an optional OPS module.

Advanced Multi-Touch Collaboration

The infrared touch system supports up to 32 touch points on Android and 40 on Windows, enabling multiple users to write, draw, and interact simultaneously with high precision.

USB-C Connectivity with 65W Power Delivery

The front-facing USB-C port supports video, touch, and data transfer while delivering up to 65W charging, simplifying connectivity with modern laptops using a single cable.

Wireless Screen Sharing and Multi-Device Support

Supports wireless screen sharing via AirPlay, Miracast, and Chromecast, allowing users to cast content from multiple devices and collaborate efficiently.

AI-Powered Writing and Recognition

Includes intelligent handwriting and shape recognition that converts input into digital text and diagrams in real time, enhancing productivity during meetings and lessons.

Immersive Audio and Clear Communication

The integrated 2.1 channel speaker system combined with an 8-array microphone ensures powerful audio output and clear voice capture, even in larger rooms.

Durable Anti-Glare Glass Design

The anti-glare tempered glass with high surface hardness minimizes reflections and enhances durability, ensuring comfortable long-term usage.

Product Specifications

• Model: LPH75-ST470
• Display size: 75 inches
• Resolution: 3840 x 2160 (4K UHD)
• Aspect ratio: 16:9
• Panel type: DLED with Zero Air Gap technology
• Brightness: Approximately 400 cd/m²
• Contrast ratio: 1200:1 (static), up to 5000:1 dynamic
• Refresh rate: 60 Hz
• Viewing angles: 178° horizontal / 178° vertical
• Protective glass: Anti-glare tempered glass (approximately 8H hardness)
• Lifespan: Up to 50,000 hours
• Operating system: Android 11
• CPU: Octa-core (4 x A73 at 2.2 GHz + 4 x A53 at 2.0 GHz)
• GPU: ARM Mali-G52 MP8
• RAM: 8 GB
• Storage: 64 GB
• External OS support: Windows 10/11 via OPS module
• Touch technology: Infrared touch
• Touch points: Up to 32 (Android), 40 (Windows)
• Touch accuracy: ±1 mm
• Response time: <10 ms
• Writing support: Finger and passive stylus
• Touch resolution: 32767 x 32767
• Audio: 2.1 channel system (2 x 15W front speakers + 1 x 20W rear speaker)
• Microphones: 8-array omnidirectional microphones
• Audio features: Echo cancellation, noise reduction
• Pickup distance: 6 m to 10 m
• Connectivity: HDMI 2.0 In/Out, DisplayPort In, VGA In, USB-C, USB 3.0 Type-A and Type-B, Micro USB, RJ45, RS-232, SPDIF
• Wireless: Dual-band Wi-Fi (Wi-Fi 5/6), hotspot support, Bluetooth 5.2
• Power supply: 100–240V AC
• Power consumption: Approximately 150W typical, up to 350W max
• Standby power: ≤0.5W
• Operating temperature: 0°C to 40°C
• Operating humidity: 10% to 90%
• Installation: Wall mount or mobile stand
• Dimensions: 1707.5 x 93.0 x 1050.0 mm
• Net weight: Approximately 54 kg
• Included accessories: Wall mount bracket, stylus pens, HDMI cable, remote control, power cord