Touch Screen Controller

According to the types of sensors, the Touch screen can be roughly divided into four types: infrared, resistive, surface acoustic and capacitive Touch Screens. The design of Capacitive Touch Screen is reasonable, but the problem of image distortion is difficult to be solved. The positioning of the resistance technology touch screen is accurate, but its price is quite high, and it is afraid of scratching easily; The surface acoustic wave Touch Screen solves all kinds of defects of the previous touch screen. It is clear and not easy to be damaged. It is suitable for various occasions.

The most relaxed human-computer interaction technology has been pushed into many fields. In addition to personal portable information products, it is widely used in home appliances, public information (such as e-government), electronic games, communication equipment, office automation equipment, information collection equipment and Industrial equipment, etc. Although the application of touch screen technology in China has only been more than ten years, it has become the most acceptable computer input mode for the common people after keyboard, mouse, handwriting board and voice input. Using this technology, users can operate on the host computer simply by touching the symbols or text on the computer display with their fingers, thus making human-computer interaction more straightforward. This technology greatly facilitates users and becomes an attractive new multimedia interactive device.