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Precautions for using capacitive touch screen
Release time:
2021-11-04 15:21
Source:
Everyone knows that most of our touch products currently use the capacitive touch screen, so what are the precautions that can better extend the life of the touch screen?
The advent of the era of electronic products has promoted the development of various resistive screens. So what is a capacitive touch screen? From the following two aspects, we can understand that the capacitive touch screen is a transparent special metal conductive material attached to the surface of the glass. When the finger touches the metal layer, the capacitance of the electric shock will change, making them different. The frequency of the indirect oscillator changes, and the touch position can be determined to obtain information by measuring the frequency change. Let’s take a look at what are the precautions for the capacitive touch screen?
The scanning speed is defined as the speed at which the touch screen controller scans the touch screen. According to the characteristics of the touch key, a key press will exceed 20mS. As long as you scan once within 20mS, you will be able to scan the touch. In the process of touching, the fingers will sweat. When a device with a resistive screen enters a warmer place from a colder place, a layer of water mist will appear on the surface of the touch screen. Capacitive touch screen is required to be used normally in both cases. For devices using resistive screens, the working environment is very different, and the suitable temperature range must be wide, otherwise it may cause the user to remain unchanged. The general working temperature range of resistive screen is -20℃-70℃. The resistive screen will age during use. The performance of the aging capacitive touch screen will decrease. The resistive screen system must be able to correct the general aging so that it can be used normally and prolong the life of the system.
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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.
