Knowledge

Considerations and FAQs for capacitive touch screens



1, if the user is using capacitive touch screen, it is recommended that users in the first use, first of all, according to the requirements of the relevant instructions to properly install the required capacitive touch screen driver, and then click on the screen with your finger "start"/"program"/"Microtouch Touchware"

To run the screen calibration program, after the calibration is complete, the system automatically stores the calibrated data in the controller's registers, and then restarts the system later without having to calibrate the screen.

2, if in the middle of the operation of capacitive touch screen, re-change the touchscreen display resolution or display mode, or adjust the touch screen controller refresh frequency, feel that the cursor and touch points can not correspond to the touch screen system must be re-calibration operation.

3, in order to ensure the normal operation of the touch screen system, in addition to ensure the correct installation of the system software, you must also remember not to install two or more touch screen drivers on a host, which will easily cause the system to run conflict, so that the touch screen system can not be used properly. 4, in the use of resistive touch screen, if you find that the cursor is not moving or can only be moved in the local area, the user can see if the touchscreen touch area is always pressed by other touch, such as once the touch screen is pressed by the display shell or cabinet shell, it is equivalent to a point has been touched,

Then the coordinate position of the feedback to the controller is inaccurate.

5, mentioned earlier, once the system in the replacement of the display resolution, adjust the screen size and the first installation there will be no click or drift, you need to start the application in the self-contained positioning program repositioning, but in the positioning, it is best to use a relatively thin pen or fingertip positioning, so the more accurate.

6, the surface acoustic wave touch screen work environment requirements are high, it must work in a clean, dust-free environment, but also regularly clean the surface of the touch screen dust, otherwise, the dust in the air cover the touch screen around the reflective stripe or transducer, will affect the correct positioning of the system. 7, do not let the touch screen surface has water droplets or other soft things sticky on the surface, otherwise the touch screen is easy to mistakenly think that there is a hand touch caused by surface acoustic wave screen is not allowed.

In addition to removing dirt on the touchscreen surface, the user can use a soft dry cloth or detergent to carefully wipe from the center of the screen, or use a dry soft cloth dipped in industrial alcohol or glass cleaning liquid to clean the touchscreen surface. 8, if using hand or other touch to touch the surface acoustic wave touch screen, touch screen reaction is very slow, it is likely that the touch screen system is outdated, the internal clock frequency is too low, or because the touch screen surface has water droplets in the mobile, to allow the touch screen to restore the rapid response, you must re-replace or upgrade the system,

Or wipe off the surface of the touch screen with a rag. 9, the touch screen is generally used for signal transmission, from the PS/2 port to take the signal, and the TPS screen is directly from the host power to take power. If the LED is not lit, the signal is not taken and the PS/2 line on the control box may be broken. If the light is on, but still not flashing, the control box is broken, so the user must replace the control box. If the replacement of the control box or not, it is possible that the screen is pressed too tight, the surrounding screws need to be slightly loose, because the touch screen is made of special materials, it is not easy to damage the body. If the serial port is bad or disabled, it will cause the driver to fail to install because the serial port is automatically found when the driver is installed. The mouse does not move or is unable to locate even if it can be installed. It is best not to use the serial mouse to determine the good or bad serial port, the serial 9 may be used for their different ways. If the screen is pressed, or if the ground is not connected, it will not be able to locate.

If some areas are not clickable or slow to react, it is possible that the dust is affected and the enclosure must be removed to remove dust. 10, when touching the capacitive touch screen with a finger a position, the touchscreen does not have any reaction, it is likely that the touch bit is not accurate, the cursor of course can not be correctly located. If the cabinet housing is pressed in the touch area the user can turn the cabinet and the monitor screen up a bit, and if the monitor housing presses the touch area, the user can try to loosen the screw of the monitor housing.