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The Analysis Of Capacitor Screen

Blaze Display Technology Co., Ltd. | Updated: Nov 27, 2018

Surface acoustic wave touch screen work environment demand is higher, it must work in a clean, no dust pollution of the environment, but also touch screen periodically clean the dirt on the surface, otherwise, the dust cover on the reflection stripe around the touch screen or transducer, will influence the correct positioning of the system.

Do not let the touch screen surface water droplets or other soft things adhere to the surface, otherwise the touch screen is easy to mistakenly think that there is a hand touch the surface acoustic wave screen is not accurate. In addition, when removing dirt on the touch screen surface, users can carefully wipe it from the center of the screen with a soft dry cloth or cleaner, or clean the touch screen surface with a dry soft cloth dipped in industrial alcohol or glass cleaning fluid.

If use your hands to touch or other touching surface acoustic wave touch screen, touch screen is very slow, it shows that most likely touch screen system is obsolete, the internal clock frequency is too low, or is due to the touch screen surface is water in the mobile, restore fast response to touch screen, must replace or upgrade system, or use dishcloth dry the water on the surface of the touch screen.

The touch screen generally USES serial port for signal transmission, and takes the signal from PS/2 port, while the TPS screen takes the power directly from the host power supply. If the indicator light is not on, the signal is not taken. PS/2 line on the control box may be broken. If the light is on but still does not flash, the control box is broken, so users must replace the control box. If the replacement of the control box is not enough, it may be that the screen is pressed too tight, and the screws around it need to be loosened a little, because the touch screen is made of special materials, and it is not easy to damage If the serial port is broken or disabled, the driver cannot be installed because the serial port is automatically found when the driver is installed. Even if it can be installed, the mouse will not move or unable to locate. It is best not to use the serial mouse to judge the quality of serial port, perhaps serial port 9 for them to use their own way is not the same. If the screen is pressed, or the ground wire is not connected properly, it will be unable to locate. If some areas cannot be clicked or are slow to respond, it may be caused by dust. The outer shell needs to be removed to remove the dust.

When the finger touch a certain position of the capacitive touch screen, the touch screen does not have any response, it is likely that the touch bit should be inaccurate, of course, the cursor can’t be correctly positioned. If the cabinet shell presses the touch area, the user can increase the distance between the cabinet and the display screen. If the display shell presses the touch area, the user can try to loosen the screw of the display shell.


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