Touch Screen Interactive Smart Black Board Digital LED 4K Intelligent Nano Blackboard for Children - a striking technological innovation that represents the advancement of intelligent technology in modern education and business environments.
This advanced blackboard features touch screen design for convenient operation without cumbersome buttons or mice. Simply tap the screen to perform various operations. Utilizing nanotechnology, the display delivers clearer, more detailed images with enhanced realism. 4K smart technology provides lifelike visuals with vibrant colors, creating an immersive user experience.
| Specification | Details |
|---|---|
| Product Name | 75 Inches |
| LCD Type | DLED |
| Physical Resolution | 3840×2160 (FHD) |
| Brightness | 350 cd/㎡ |
| Contrast Ratio | 1200:1 |
| Screen Scale | 16:9 |
| Viewing Angle | 178° |
| Color | 10bit, 10.7 |
| Video Format | PAL, NTSC, SECAM |
| Sound System | D/K, B/G, I, M |
| Android System | 9.0/11.0/13.0 |
| Android System EMMC | 32G/64G |
| Android System DDR3 | 3G/8G |
| Computer VGA Input Support | Multiple resolutions up to 1920×1080@60Hz |
| Touch First Response Time | <15ms |
| Input Ports | Front: 2×HDMI2.0, 1×VGA+AUDIO, 1×USB 2.0, 1×USB 3.0, 1×TOUCH-USB, 1×RS232, 1×TF Card, 1×LAN IN, 1×WIFI, 1×Bluetooth, 1×standard OPS |
| Output Ports | Post output: 1×COXIAL, 1×EARPHONE |
| Front Buttons | 11KEY (POWER, SOURCE, MENU, VOL+, VOL-, REC, A.Blue, PC, ES, RATIO, HOME) |
| Rated Voltage | AC100V-240V~50/60HZ |
| Rated Current | 3.5A |
| Working Temperature | 0°C~40°C |
| Support Touch Points | 20 points |
| Touch Model | Finger or capacitive pen |
| Positioning Technology | Capacitance Technology |
| Positioning Accuracy | <2mm |
| Continuous Response Time | <8ms |
| Cursor Speed | >240dot/mm |
| Touch Screen Communication Port | USB |
| Operating System Support | WINDOWS/LINUX/MAC/Android |
| Touch Durability | More than 60 million times in the same location |