180-260V AC Input 75 Inch Interactive Touch Screen Display LED Panel Smart Digital Blackboard
75 Inch 4K 3840 x 2160 Display Panel
500 cd/m² High Luminance Output
10/20 Touch Finger & Stylus Input
180-260V AC Universal Grid Power
Product Overview
The 75 Inch Interactive Touch Screen Display LED Panel Smart Digital Blackboard is engineered to maximize operational efficiency across modern academic institutions and corporate presentation centers. Delivering an intense screen brightness of 500 cd/m² and dynamic contrast ratios up to 5000:1, digital courseware and presentation slides remain perfectly legible under bright room illumination.
The 75 Inch Interactive Touch Screen Monitor (Nano Intelligent Blackboard) seamlessly combines traditional dustless blackboard writing functionality with modern multimedia teaching tools. The comprehensive hardware facility integrates a physical writing board, high-definition touch screen monitor, microphone array, audio speaker, document visualizer, OPS computing module, and central control panel. This system enriches teaching methods and facilitates excellent interaction between students and teachers, significantly improving teaching quality and learning efficiency.
Key Features & Spotlight Capabilities
Display Optics 75" 4K UHD LED Panel
1650.24 x 928.26 mm active display area with 500cd/m² brightness and >70% brightness uniformity.
Touch Performance 10/20 Multi-Touch Points
2.5ms rapid touch response time with ≤2mm deviation and >60,000,000 single touch lifespan.
Hardware Integration All-in-One Console
Built-in OPS slot, microphone, audio speaker, visualizer link, and central system control panel.
Electrical & Storage 180-260V AC Power + 64GB
Universal wide-voltage power grid adaptability paired with 64GB onboard high-speed storage.
- Product Name: Smart Digital Blackboard / Nano Intelligent Blackboard
- High-Speed Port Connectivity: HDMI and USB Interface Array
- Contrast Ratio Performance: 1200:1 Dynamic / 5000:1 Peak Contrast Ratio
- Smart Blackboard Panel: 75 Inch 4K UHD Flat Writing Panel
- Internal Storage Capacity: 64GB SSD Onboard Storage
- Target Application Scope: School Teaching, University Auditoriums, Corporate Meetings
- Global Electrical Adaptability: 180-260V AC Wide Voltage Input
- Writing Input Media: Finger Touch or Active Capacitive Stylus Pen
Technical Specifications
| Screen Specifications |
| Dimension & Screen Size | 75 Inch Central Display Panel |
| Active Display Area | 1650.24 mm (H) x 928.26 mm (V) |
| Pixel Point Distance | 0.143 mm (H) x 0.430 mm (V) |
| Native Screen Resolution | 3840 x 2160 P (4K UHD) |
| Display Aspect Ratio | 16:9 Widescreen |
| Panel Luminance Brightness | 500 cd/m² High Luminance |
| Dynamic Contrast Ratio | 5000:1 (Contrast Ratio Options: 1200:1 / 5000:1) |
| Equality of Brightness | > 70% Uniform Luminance |
| Panel Response Time | 4.0 ms Response Time |
| Display Color Depth | 16.7 Million Colors (8-BIT) |
| Backlight Type & Lifespan | D-LED Backlight (> 50,000 Hours Lifespan) |
| Touch Specifications & Electrical |
| Touch Points Capacity | 10 / 20 Points Simultaneous Multi-Touch Input |
| Writing Media Input | Finger Touch or Capacitive Stylus Pen |
| Response Deviation | ≤ 2 mm High Precision Track |
| Touch Response Time | 2.5 ms Ultra-Fast Touch Response |
| Touch Surface Lifespan | ≥ 60,000,000 Touches Single Touch Life |
| System Onboard Storage | 64GB SSD Storage Space |
| I/O Ports Array | HDMI, USB Pass-Through Ports |
| Input Power Voltage | 180-260V AC Wide Voltage Input (50/60Hz) |
| Operating System Engine | Dual System Supported (Windows & Android Engine) |
Applications & Deployment Scenarios
The MTHGH Smart Digital Blackboard from China is a smart electronic blackboard engineered for a wide variety of educational, corporate, and institutional applications:
- K-12 & Higher Education Classrooms: A valuable tool for interactive teaching, allowing educators to write with chalk or digital stylus, annotate slides, and present 4K video courseware to engage students in innovative ways.
- Corporate Boardrooms & Strategy Rooms: Enables business executives to connect laptops via HDMI or USB ports, annotate financial spreadsheets, lead hybrid video meetings, and store files directly on 64GB internal memory.
- Vocational Training & Seminars: Facilitates step-by-step technical demonstrations with real-time multi-touch student interaction.
- Remote Hybrid Learning: Bridges physical classrooms and distance learning platforms, allowing remote students to view lectures with crystal clarity.
Frequently Asked Questions
Does the 75-inch Smart Blackboard support Dual Operating Systems?
Yes, the system features a dual OS engine supporting both Windows and Android environments, enabling educators to switch between Android teaching apps and Windows software with a single touch.
What power input standards are supported for global installation?
The system operates on a universal 180-260V AC wide voltage power supply (50/60Hz), making it fully compatible with electrical grids across Europe, Asia, Latin America, and the Middle East without requiring external transformers.
What touch input methods and response speeds are supported?
The screen supports both finger touch and capacitive stylus pen writing with 10 or 20 simultaneous multi-touch points, achieving an ultra-fast 2.5ms response time and ≤2mm deviation.
Are OEM/ODM customization options available for bulk procurement?
Yes, as a factory-direct supplier, we offer full OEM/ODM customization covering exterior frame design, branding logos, hardware specifications, and custom packaging.
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