Dahua LPH75-ST420-S3 – 75″ 4K Interactive Smart Whiteboard (Zero-Air-Gap Display • Dual-OS Android 14 + OPS-Ready • Wireless Screen Sharing)

Description

The Dahua Interactive Panel LPH75-ST420-S3 is a professional-grade smart display system designed to deliver ultra-clear, immersive collaboration experiences in classrooms, corporate spaces, and creative environments. With its expansive 75-inch 4K DLED screen and zero-air-gap technology, this panel offers vivid colour’s, sharp imagery and exceptional viewing clarity from any angle.

Built with dual-OS flexibility, the panel supports Android 14 and can be upgraded to full Windows via an optional OPS module—creating a seamless, future-proof platform for teaching, presenting and team-based collaboration. Wireless screen-sharing, multi-touch interaction and smart front-panel controls make content delivery fast and intuitive.

Whether you’re driving an engaging lesson, conducting a strategic board meeting or transforming a workspace into an innovation hub, the Dahua LPH75-ST420-S3 delivers smarter communication that connects ideas, people and possibilities.

Key Features

• 75″ 4K DLED Display with Zero-Air-Gap: Crisp visuals, reduced reflection, stunning detail.

• Dual-OS Support: Built-in Android 14 with optional Windows (via OPS module) for flexibility.

• Multi-Touch & Stylus Support: Infrared touch technology with up to 21 touch points on Android and 40 on Windows—supports finger & stylus input.

• Rich Connectivity: WiFi 6 (802.11a/b/g/n/ac/ax), Bluetooth 5.3, front and rear ports including USB-C, HDMI in/out, VGA, RS-232, OPS slot.

• Smart Front-Panel Access: 8 physical buttons for Whiteboard, volume, curtain, touch lock, signal source, navigation, homepage and power.

• Interactive Touch Surface: Anti-dazzle 4 mm tempered glass, surface hardness ≥ 9H, zero air gap ensures responsiveness & clarity.

• High Colour Fidelity & Viewing Angle: 1.07 billion colours (10-bit), viewing angle of 178° horizontal/vertical.

• Built-In Intelligence: Supports wireless mirroring from multiple devices, QR-code file sharing, AI recognition of drawings.

Perfect For

• Modern education environments (primary, secondary, higher education)

• Corporate boardrooms & training centres

• Design studios and collaborative workspaces

• Conference venues, hotel meeting rooms and large-format huddle spaces

• Digital signage and interactive display installations

Package Includes

• 1 × Smart Interactive Whiteboard (75″)

• 1 × Power cord

• 2 × Passive stylus pens

• 1 × HDMI cable

• 1 × Quick start guide

• 1 × Wall-mount bracket (pre-installed)

• 1 × Accessory package

• 1 × Remote control

• 1 × Legal & regulatory documentation

Optional Add-ons

• OPS Module for full Windows functionality

• Mobile stand or floor-mounted bracket alternative to wall-mount

• Custom installation or calibration services

• Extended warranty or service plan

• Additional stylus pens or interactive accessories

“Large-Format Collaboration. Intelligent Interaction.”

With a massive 75-inch display, advanced touch responsiveness, and dual-system architecture, the Dahua Interactive Panel transforms any space into a dynamic interactive hub. From immersive classroom sessions to high-impact corporate meetings or innovative design collaborations, this panel brings together hardware performance, seamless connectivity and intuitive operation—making complex work feel fluid, engaging and visually compelling.

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