Since the term "touch screen" appeared in the early 1980s, it has been more than 30 years now. At that time, there were many kinds of touch screens, one of which was the capacitive touch screen. At that time, the mainstream of monitors was CRT (Cathode Ray Tube) monitors. The price of 14ine capacitive touch screens was about 200,000 yen. D CRT monitors were divided into two categories: one was a spherical (Spherical) Brown tube (Brown tube). tube) display; the other is a cylindrical (Cylindrical) Brown tube display; displays of different sizes have different radii of curvature, so it is very difficult to use CRT to make touch screens, such as coating on the CRT display, after forming the film The thickness distribution is uneven, especially when making spherical resistive touch screens, which is more difficult.
At first, when LCD monitors first came out, the price of a 14-inch LCD monitor was 400,000 yen. At that time, people were not very familiar with touch screens, and touch screens were hardly used. The industry generally believes that when the price of the touch screen is half of the original price, the market share will increase to four times the original. The author also thinks so, so the development of the touch screen is carried out. Compared with that time, the touch screen market is now hundreds or even thousands of times larger. Although there has been a period of stagnation in the development of touch screens, they now occupy a considerable share of the display field. Newsstands, bank ATMs, and ticket vending machines at various sites all commonly use touch screens, and the production principle cannot be distinguished from the appearance. In the past, touch screens could be classified according to the way they touch. For example, "touch with gloves", "front with pen
"End touch", "touch with nails", "touch with drops of water", etc. But in what way is the touch screen touch that often makes people scratching their heads recently? Touch screens that use various touches have appeared on the market one after another, even if you know Even with the touch screen display method, people's doubts cannot be solved fundamentally.
Nowadays, touch screens are generally called "Touch Panel" (Touch Panel, TP)e. In fact, this is a unique name in Japan, and it is generally called touch screen (TouchScreen) in the world. The input components of electrical appliances include switches, keyboards, mice, track balls, and stick points. Broadly speaking, there are voice input, gesture input, and so on. Touch screens are also one of them. Recently, Nintendo has invented a resistive touch screen game console "Nintendo DS" that uses a pen. Apple in the United States also uses capacitive touch screens in smartphones or audio storage devices. It not only realizes multi-touch, but also embodies the intuitive input method, which breaks the traditional concept of input.
