USB Four Touch Frame for TV

Product Description:
Infrared(IR) touch screen operate on the mechanism of infrared LEDs arranged in arrays on two adjacent bezel edges of the PCB with photo sensors placed on the two opposite edges functioning as transmitters and receivers. The LEDs emit infrared rays simultaneously to form a grid of rays across the display. When the user wishes to send a signal through touch, he/she can do so by interrupting the light beams with a physical object. Since every infrared LED is independent, the touch screen is able to achieve positioning by analyzing the decrease in light at the corresponding photo sensors. The signal is then processed by the control circuitry and sent to the PC for the coordinates of the touch event to be displayed on screen or to be utilized by other software for relevant signal operation.
Specifications:
Multi-touch IR Touch frame for LCD TV/PC all in one
Double users writing
Finger or Pen write
Multi-touch, HID device