1. If you are using a capacitive LCD, it is recommended that you first install the driver required for the capacitive LCD according to the instructions for the first time, and then click "start" / "program" / "microtouch touchware" on the screen with your fingers to run the screen calibration program. After the calibration is completed, The system automatically stores the calibrated data in the register of the controller. After restarting the system, there is no need to calibrate the screen.

2. When using the resistive LCD, if you find that the cursor does not move or can only move in a local area, you can check whether the touch area of the LCD is pressed by other touching objects. For example, once the LCD is pressed by the display shell or cabinet shell, it is equivalent to a certain point has been touched all the time, and the coordinate position fed back to the controller is inaccurate, Of course, the cursor cannot be positioned correctly. If the cabinet shell presses the touch area, you can increase the distance between the cabinet and the display screen. If the display shell presses the touch area, you can try to loosen the screw of the display shell.

3. In order to ensure the normal operation of the LCD system, in addition to ensuring the correct installation of the system software, we must also remember not to install two or more LCD drivers on a host, which will easily lead to conflicts during the operation of the system, so that the LCD system can not be used normally.

4. If the display resolution or display mode of the LCD screen is changed again during the midway operation of the capacitive LCD screen, or the refresh frequency of the LCD controller is adjusted by itself, and it is felt that the cursor cannot correspond to the touch point, the LCD screen system must be calibrated again.

5. Once the system changes the display resolution, adjusts the screen size and is installed for the first time, there will be inaccurate clicking or drift. It is necessary to start the positioning program in the application to reposition. However, when positioning, it is better to use a thinner pen or fingertip for positioning, which is more accurate.

6. If you touch the surface acoustic wave LCD with your hands or other touch objects, the LCD response is very slow, which indicates that it is likely that the LCD system is old, the internal clock frequency is too low, or there are water droplets moving on the LCD surface. In order to restore the fast response of the LCD, you must replace or upgrade the system, Or wipe the water droplets on the surface of the LCD screen with a rag.

7. Do not allow water droplets or other soft things on the surface of the LCD to stick to the surface, otherwise the LCD is easy to mistakenly believe that the surface acoustic wave screen is inaccurate due to hand touch. In addition, when removing the dirt on the LCD surface, you can carefully wipe it from the center of the screen with a soft dry cloth or detergent, or clean the LCD surface with a dry soft cloth dipped in industrial alcohol or glass cleaning solution.