For capacitive touch screen, it is inseparable from touch technology. And more and more devices now use multi-touch capacitive touch screen. We first briefly understand the touch itself, and then understand the capacitive touch screen is much easier.
Touch technology is no stranger to those of us who use mobile phones. Most of the bank’s ATMs have a touch screen function. Many hospitals, libraries and other halls also have computers with this touch technology. In addition, we commonly use MP3, digital cameras, tablet computers, etc., there are many such technologies. But these existing touches are basically single-touch. That is, it can only recognize and support the touch and click of one finger at a time.
If more than two points are touched at the same time, the correct response cannot be made. And multi-touch technology can decompose the task into two aspects of work. One is to collect multi-point signals at the same time. The second is to judge the meaning of each signal. Also known as gesture recognition. Thereby, the screen recognizes the click and touch actions performed by the five fingers of a person at the same time.
That is, multi-touch is a technology realized by human-computer interaction technology and hardware devices. The human-computer interaction operation of the computer can be carried out without traditional input devices (such as: mouse, keyboard, etc.). Multi-touch technology that can form a touch screen (screen, desktop, wall, etc.) or trackpad. All of them can accept human-computer interaction from multiple points on the screen at the same time.
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