Touch screen types

May 26, 2020

According to the working principle of the touch screen and the medium of information transmission, we divide the touch screen into four types: resistive, capacitive, infrared and surface acoustic wave. Each type of touch screen has its own advantages and disadvantages. The key to understanding which touch screens are appropriate for that situation is to understand how each technology works and what its features are. This article briefly introduces the various types of touch screens mentioned above.

Touch screen principle

For ease of use, people use touch screens instead of mice or keyboards. To work, you must first touch the touch screen installed in front of the display screen with your finger or other object, and then the system selects the input information based on the icon or menu position touched by your finger. The touch screen is composed of a touch detection component and a touch screen controller; The touch detection component is installed in front of the display screen for detecting the user's touch position and receiving the touch screen controller on the back; The main function of the touch screen controller is to receive contacts from the contact detection device. The information is converted into contact coordinates and sent to the CPU, which can also receive commands from the CPU and execute them.

The main types of industrial touch screens

According to the working principle of the touch screen and the medium of information transmission, we divide the touch screen into four types: resistive, capacitive, infrared and surface acoustic wave. Each type of touch screen has its own advantages and disadvantages. The key to understanding which touch screens are appropriate for that situation is to understand how each technology works and what its features are.

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Ms. Yoyo Huang

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