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Capacitive touch screen using the matters needing attention

by:Toponetech     2020-06-07
We all know that we are currently a lot of touch products mostly USES is capacitive touch screen, so what are the considerations for better able to prolong the life of the touch screen? Capacitive touch screen using the matters needing attention of the arrival of the era of electronic products, promote the development of various resistance screen, so what is capacitive touch screen? Then we will go to learn both from the following aspects, capacitive touch screen is on the surface of glass with a layer of transparent conductive material special metal, when the fingers on the metal layer, get an electric shock the capacitance will change, let them connect between the oscillator frequency changes, by measuring the frequency changes can determine the touch location information, let's look at what is the matters needing attention of capacitive touch screen? Scanning speed is defined as a touch screen controller scans the speed of the touch screen. According to the characteristics of the touch buttons, a button will be more than 20 ms. As long as within 20 ms scan time, must be able to scan to the touch. In the process of touch, fingers will sweat. Device with resistive screen from a cold place into a hot spot, the touch screen surface will be a layer of mist. For touch screen in both cases can be normal use. Using resistive screen equipment, working environment differ in thousands ways, suitable temperature range must be wide, otherwise may cause the same to the user. General screen working temperature range for - resistance 20℃— — 70℃。 Screen in use process will be aging resistance. Touch screen after aging performance will decline. Resistive screen system must be able to adjust the general aging, make its can be normal use, extend the life of the system.
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