Awork principle
Infrared touch screen is the use of X, Y direction with infrared matrix to detect and locate the user's touch.Infrared touch screen in front of the display to install a circuit board frame, circuit boards and around the screen configuration infrared transmitting tube and infrared receiving tube, one to one correspondence into bearing cross infrared matrix.Users in the touch screen, the finger will block after the location of the relation of two infrared, which can determine the location of the touch point on the screen.
The touch screen, it is a highly integrated electronic circuit integration products.Infrared touch screen consists of a complete integrated control circuit, and a set of high accuracy and anti-interference infrared transmitting tube and a set of infrared receiving tube, cross installed in a highly integrated circuit board on the two opposite directions, to form an invisible infrared grating, embedded in the control circuit of the intelligent control system continuously for diode pulse forming infrared partial beam grating.When touch objects such as fingers into the grating, blocking the light beam.Intelligent control system will detect loss of light changes, and transmit signals to the control system, to confirm the X axis and Y axis coordinate values.

Infrared touch screen features
1, High stability, and won't because time slips, changes in the environment to produce;
2, a high degree of adaptability, current, voltage and electrostatic interference, suitable for some harsh environmental conditions (explosion-proof, dust-proof);
3, Pervious to light, without intermediate medium, the highest can amount to mark 100%;
4, Long service life, high durability, not afraid to scratch, touch and long life;
5, Use good, touch without efforts, no special requirements for touch body;
6, Under the XP support simulation 2 points, in Windows 7 support is 2 PM, with the innovation of technology, some manufacturers of infrared screen touch points have been supported by more than two;
7,Support USB, serial port output;
8, Resolution is 4096 (W) * 4096 (D);
9,Operating system, good compatibility Win2000 me/NT / 98 / XP/VISTA/X86 / LINUX/Windows 7;
10, Touch > = 5 mm in diameter;
11, By strong infrared interference, such as remote control, high temperature objects, the sun or incandescent lamps, infrared source illuminate infrared receiving tube;12, will be affected by electromagnetic interference, such as transformer, etc.