China 55′′65′′75′′86′′smart Blackboard Push Pull Infrared Smart Blackboard Smart Blackboard LCD Digita

Android system functions:
Support simultaneous 10-point touch
Comes with whiteboard for writing, image zoom in, zoom out, and rotate
Under the display state of each signal source, you can quickly call out frequently used application functions through the floating shortcut menu to realize operation functions such as homepage
The homepage is designed with shortcut menus for media courseware, browser, electronic manual, whiteboard teaching, teaching resources, all applications, settings, etc., and shortcut applications can be added to the floating ball menu according to personal preferences; shortcut menus can be set on the left side of the homepage, which can be set by users Add application functions yourself
The homepage preview channel can be set to four-screen display
Support child lock application, automatically identify signal source and switch channels
DTV, ATV cable TV watching function; USB multimedia file playback function (supports multiple file formats)
Support wireless wifi, wired LAN, you can browse the web and play online videos
Support dual systems to achieve seamless switching between Android and Windows systems
Android system configuration:
Processor: MSD648 Cortex A53 quad-core 1.5GHz
System version: Android 6.0 embedded system
Memory: 2GB DDR3
Storage space: 8GB
External expansion storage: SD card maximum expansion 128G (Fat 32 format)
Android system terminal interface:
Input port (IN): Ypbpr*1; AV*1; VGA*1; PC Audio*1; HDMI*2; 75Ω RF*1
Output port (OUT): SPDIF*1; Earphone*1; AV*1
Data transmission port (IN/OUT): RJ45/LAN*1; Touch USB*1; RS232*1; USB2.0*2; TF Reader*1; WIFI
Front lower port: HDMI (IN)*1; USB3.0*1; USB2.0*2; Touch USB*1Display parameters:
Screen size: 75 inches (16: 9)
Display type: LED liquid crystal display
Screen display size: 1650.5 (width) x 928.7 (height) mm
Physical resolution: 3840 (H) x 2160 (V) (UHD)
Display color: 8bit, 1.07B
Refresh rate: 60HZ
Brightness: center point 300-350 cd/
Contrast ratio: ≥1400:1 (Typ.)
Brightness uniformity:> 72%
Response time: 9.5ms
Viewing angle: 178°
Display protection: 4mm full tempered high explosion-proof glass, anti-glare
Backlight life: 50000 hoursTouch parameters:
Touch sensor technology: infrared sensor positioning recognition touch technology (10 points), HID free drive
Writing method: finger, touch pen or other non-transparent objects with a diameter of not less than 5mm
Positioning accuracy: more than 90% of the touch area is ±2mm
Response time: <8ms
Communication interface: A type USB male
Touch resolution: 32767*32767
Number of touches: theoretically unlimited
Transmission speed: 120Mbps
Driver: automatic recognition by the system, no driver
Operating system: support windows7/10, Android, Mac OS, LinuxThe whole machine features:
Shell and appearance: aluminum alloy face frame corner block design, front buttons, front ports, front speakers
Overall dimensions (L*W*D): 4000*1300*107 (mm)
Machine consumption rate: ≤300W (OPS not included, OPS maximum power support ≤90W)
Standby power: ≤0.5W
Voltage range: AC (100-240) V-50/60HZ
Sound power: 10W /8Ω *2
Net weight: 85kg