The advantage of an infrared touchscreen is that it can be touched by a finger, pen, or any object that blocks light.
The Infrared touch screen detects and locates the user's touch by using an infrared matrix that is densely spaced in the X and y directions. Infrared touch screen in front of the display to install a circuit board outside the frame, Infrared Touch Screen the circuit board on the screen four sides of the infrared transmitter and infrared receiver tube, each corresponding to the intersection of the infrared matrix. When the user touches the screen, Infrared Touch Screen the finger will block the two infrared rays of the position, so that the touch point can be judged in the screen position.
Main features of Infrared touch screen
1, the stability of the height will not be caused by time, environment changes in drift.
2, the height of adaptability is not affected by current, voltage and electrostatic interference, suitable for some harsh environmental conditions.
3, high transmittance without intermediate medium, Infrared Touch Screen high transmittance, up to 100%.
4, long service life and durability, not afraid of scratching; The touch density can reach the 4096*4096 and the contact life is very long.
5, the use of a good touch no strength, no special requirements for the touch body, Infrared Touch Screen whether the touch is hard, or whether the touch is conductive, do not affect the normal use;
Infrared Touch Screen Technical parameters
Enter the way finger, Infrared Touch Screen gloved hand or other touch-sensitive medium.
The touch strength does not need the intensity.
Input voltage +4.5v~+5.5V DC.
Working current touch activation Force 180mA.
Physical resolution 2.5mm.
Minimum touch body >5mm.
Response Time 18ms.
Controller Interface EIA 232E.
There is no noise.
Applicable operating system $literal, WinMe, Windows2k/xp, WindowsNT4.0, WinCE onX86, Linux, Dos.
Compatibility with the GT Controller 4001S Ver1.0 protocol.