55 inch 4K Multi-touch Capacitive Technology Interactive Whiteboard Digital Smart Boards For Education
Capacitive Interactive whiteboard technologies have been implemented in schools, business organizations, and other avenues to help improve the interaction between the audience and the instructor. One of the most important components of the interactive whiteboard is the screen or writing surface, which comes with touchscreen abilities for sensing different forms of input. Touchscreen technology exists in two main forms, namely capacitive and resistive technology. Here in we look at what sets these two touch technologies apart and how they are implemented in interactive whiteboards and other devices.
Resistive Touchscreens
Resistive touchscreens are made up of several layers with different functions for receiving and transmitting input. Out of these, there are two thin layers with coating on adjacent sides, with the coated sides facing each other and separated by a small gap. When the coating from these layers touch, a voltage is created and passed to register as a touch event at that location.
| Size | 55/65/75/85/86 inch |
| Touch type | Capacitive sensor |
| Touch points | 10 |
| Screen assembly technology | Zero gap |
| Tempered glass | 4 MM |
| Backlight type | DLED |
| Visual ratio | 16:9 |
| Resolution | 3840(H)×2160(V) |
| Pixel pitch | 0.372×0.372mm |
| Frequency | 60Hz |
| Contrast ration(Typ) | 1200:1 |
| Viewing Angle | 178°(H/V) |
| Brightness | 350-400 cd/m2 |
| Contrast ration(typ)/(min) | 1400:1 |
| Audio output power | 8Ω15W*2 |
| Touch drive | HID |
| Touch sensitive method | Fingers, stylus |
| Touch screen positioning resolution | 4096*4096 |
| Touch screen communication interface | USB 2.0 |
| Response time | ＜8ms |
| Scan frequency | 100 Hz/s |
| Cursor speed | 100 Hz |
| Touch accurancy | ≤±1 mm |
| Configuration | Android8.0 2/16G RAM,16/32GB ROM. WIFI 2.4 Ghz+5G |
| OS | XP/Win7/ Win10/ LINUX/ Android |
| Front port | USB 3.0,USB 2.0,HDMI IN, TOUCH B,TYPE C, |
| I/O | RJ45*1, HDMI*2,VGA*1,VGA AUDIO*1,YPBPR*1,AV*1,TV*1,RS232*1,USB2.0*2,SPDIF*1,Earhpone*1 TV*1, TOUCH B*1 |
| Storage environment | Storage temperature: -20℃~60℃; storage humidity: 10%RH~90%RH |
| Working environment | Working temperature: -10℃~55℃; working humidity: 10%RH~90%RH |
| Voltage | 110~240V/50~60Hz |
| Power Consumption | 270W |
| Standby Consumption | ≤ 0.5W |
| Processor | MSD848(8386) |
| OPS | CPU I3 6th, 2.4Ghz, DDR3 4G RAM, SSD 128G, 60Hz/4K |
| Chipset:Intel(R) 7 Series Chipset Family Mobile |
| Graphics:HD Graphics 3000, Sound card:Realtek ALC622 HD |
| Wifi | 2.4Ghz +5G |
| Accessories | Wall mount, expansion screw, touch pen, warranty card, certificate of conformity, manual, remote control
Optional accessories: mobile bracket, telescopic pointer, screen projector |
1) Aluminum alloy frame, surface sandblasting and anodic oxidation treatment, iron shell back cover, active heat dissipation;
2) 4mm physical tempered anti-riot glass; enhance the visual effect and enhance the touch experience;
3) High-speed 10-point touch writing experience, better smoothness and faster writing speed;
5) Using the OPS slot of the international general standard, the integrated plug-in design is convenient for upgrading and maintenance, and there is no visible external connection line of the computer module, and the body is beautiful;
6) Front expansion port: 1 PC-USB, 1 full-channel-USB, including 1 HDMI input on the lower side of the front, 1 TOUCH USB, 1 TYPE-C (USB2.0 protocol), which is convenient for users to connect external devices use
7) The speaker is placed in front of the sound to prevent the sound effect from deteriorating due to the embedded environment;
8) Child lock function, the button function can be shielded by setting;
9) Support gestures to pull up the menu, the menu can quickly adjust the brightness and sound, and switch the signal source
10) The front button is one-key start, which can turn on and off the screen and the host at the same time, and the operation is simple and convenient
11) Android 8.0 system support, multi-theme system setting switch at any time, startup LOGO setting customization and other functions
12) The system comes with functions such as screen projection, electronic whiteboard, and annotation
13) The screen assembly process adopts zero bonding technology, so that the display screen is naturally clear and transparent
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