The working principle of touch screen

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Update time : 2017-07-08 13:54:44
In order to facilitate the operation, people use the touch screen to replace the mouse or keyboard. At work, we must first touch the touch screen installed in the front of the display with a finger or other objects, and then the system will select the input information according to the icon or menu position of the finger.
By the touch screen test components and touch screen controller; touch detecting unit installed in front of the display screen for detecting user touch position, accept after the touch screen controller; the main function and touch screen controller is receiving the touch information from the touch detection device, and convert it to contacts, and then sent to CPU it at the same time to receive the CPU command and execute.
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