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How to choose capacitive touch panel
Release time:
2022-08-05 11:49
Source:
The capacitive touch panel manufacturer tells you that touch screens are very common in our daily life, and we use it every day. Capacitive touch panel is more commonly used in the market now, let's take you to understand how to choose capacitive touch panel.
Capacitive touch technology relies on the body's capacitance rather than pressure like resistive technology. There are two types of capacitive touch panels, surface capacitive technology and projected capacitive technology, both of which work by detecting changes in capacitance on the screen.
Surface capacitive touch panel: used for larger size touch screen products that require less precision. The touch screen is covered with a thin glass surface. Under this glass surface, there is a protective layer covered with a thin layer of electrodes. The electrodes on the corners of the panel supply voltage to the thin film layer. When the finger touches the screen, a small charge is transferred to the finger and the circuit is complete, which creates a voltage drop at that spot on the screen and the touch is detected. That's why you can't use a capacitive touchscreen while wearing gloves.
Projected capacitive touch panel: A more sophisticated capacitive touch technology used in smaller size touchscreen products as it is more precise than surface capacitive touch panels. Under the glass with the protective cover, there is a pattern or matrix of electrode layers. This pattern forms the plane of X and Y coordinates that the controller uses to count touch events.
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Microtech
Microtech Technology Company Limited established in 2001,offers professional design and manufacturing services for hundreds types of Liquid Crytal Display modules and Touch Panels-TN,FSTN,TFT,RTP,CTP.
