Which parts of LCD screen are easy to be damaged?

1、 Which parts of LCD screen are easy to be damaged?

Although the structure of LCD screen is relatively complex, some parts have a long service life, while some parts have a relatively short service life and high vulnerability rate. If the display is found to be faulty, the first thing to do is to check these parts and judge which part is damaged according to the fault condition fed back by the display.

For example, the light source, high-voltage board, lighting fixtures, built-in power supply, driving board, motherboard chip, backlight board, polarizer, data line and other components of the display are vulnerable parts. Once one of the components fails, the display will not work normally.

2、 Method for diagnosing display fault

There are many diagnostic methods for displaying faults, and the problems of fault feedback in each part are different, which needs to be identified through experience and daily technical accumulation.

For example, the light source is not on, which is caused by the problem of the high-voltage board, and the display shows flashing or no flashing. This situation may also be caused by the aging or damage of the lamp tube, which can be solved only by replacing the light source or the high-voltage book;

The data line is damaged. If the internal line of the display fails, the color of the display will be unclear or even there will be no signal transmission, and it can be recovered by replacing the line at this time;

If there is a damaged driver board, the display cannot be turned on normally. Even if it can be turned on, the display will not display images. This problem is caused by the damage of the main board in the display. This damage is the most difficult to repair and the maintenance cost is very high.

In addition to the above faults, such as data line fault, circuit board fault, built-in power supply fault, etc., need to be determined through some professional tests. Try to find a professional technician to help with the inspection to avoid secondary damage caused by private maintenance.

The above is all the knowledge about which parts of the LCD screen are easy to be damaged. I hope you can help after reading it!