An issue with the square LCD liquid crystal display's color cast can be seen in certain lighting conditions

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It will be displayed a line when it is first turned on, but it will be restored after some time; the entire screen will be reddish or blueish at the start of the startup

Square LCD on a computer monitor. It will be displayed a line when it is first turned on, but it will be restored after some time; the entire screen will be reddish or blueish at the start of the startup.

 

ZThe screen will occasionally become red while in use, but it will only be restored after a period of time; 2.
Screen 3 shows the overall layout. When you press it, the square LCD display goes black and there is no way to open it. It is white and red, with a heavy flyback line, and it immediately turns off the computer.


Many people believe that this type of failure is caused by a hardware failure, while others believe that the picture tube has been scrapped, and still others believe that it is caused by damage to the display driver, among other possibilities. These are incorrect points of view to hold.

Factors contributing to failure and countermeasures include:

Pole-touch faults (and sometimes only leakage faults) can only be repaired by qualified maintenance personnel, and the process is characterized by a protective shutdown of the electrical system.

Colour gradation should be displayed.

Because of open circuit damage to the power supply resistance, the fault phenomenon caused by this damage is the same as that caused by a contact pole failure. It is necessary to restore the full square LCD in order to sweep the line, and although a specific color is extremely bright, it will not cause the protection to be disabled or terminated. If the resistance increases in size, it is of course necessary to update the software.


If it is a design habit or for some other reason, I am not sure why this is happening. Green has the highest likelihood of failure, followed by blue, and finally red.
Please keep in mind that if the display has been in use for more than five years, we can classify the problem as a color deviation failure caused by the aging of the electron gun in the LCD liquid crystal display system.