With the development of computer technology, the input mode of the computer has gone through four stages from the original paper tape input to keyboard input, to mouse input, and then to touch input. This process is a process from professional to popular, and touch screen technology has made more people use computers. A touchscreen is an interactive input device that allows the user to control the operation of a computer by simply touching a certain position on the screen with their finger or a light pen. Therefore, the touch screen technology is characterized by simple operation and flexible use.
Since 1960, the United States has first opened the door to research touch screen technology, and it was first applied to the military in the United States. In 1972, the PLATO (Programmed Logic for Automated Teaching Operations) project in the United States first launched a touch screen for computer-aided teaching, with the technology of touch screen is more and more advanced, its application is more and more extensive, banks, stations, schools can be seen everywhere, China has become the most widespread user of touch screen. With the development of electronic technology and network technology and the popularization of Internet applications, a new generation of touch screen technology and products have emerged one after another, and many advantages such as durability, fast response, space saving, and easy communication have been recognized by the public.
Gradually, this most relaxed human-computer interaction technology has been pushed to many fields, in addition to personal portable information products, but also widely used in home appliances, public information (such as e-government, banks, hospitals, electric power and other departments of business inquiry, etc.), 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 method for ordinary people after keyboard, mouse, handwriting tablet and voice input. With this technology, users can simply touch the symbols or text on the computer display with their fingers to realize the operation of the host, making the human-computer interaction more straightforward. This technology is extremely convenient for users and makes it an attractive new multimedia interactive device.