Sonytek Display Co., Limited

Talking About the Vulnerable Parts of LCD Screen

Time：2023-11-23

Which parts of the LCD screen are easy to damage?

Although the structure of the LCD screen is relatively complex, some parts have a long service life, some parts have a relatively short service life and a high rate of vulnerability. If the display is found to be faulty, all we have to do is to check these parts and determine which part is damaged according to the fault status of the display feedback.

For example, LED light source, high voltage board, lighting fixture, built-in power supply, driver board, motherboard chip, backlight board, polarizer, data line and other components are all perishable parts. Once one of these components fails, the screen will not work properly.

To diagnose screen problems:

There are many ways to diagnose LCD screen failure, the problems reported by each part of the failure are not the same, and need to be identified through experience and daily technical accumulation.

For example, the light source is not bright, it is because of the high-voltage board problems, the screen appears flickering or not. This situation may also be caused by aging or damage to the lamp, which can only be solved by replacing the light source or high-voltage board.

Wire damage, such as the display LCD internal circuit failure, will lead to the display color is not clear or even no signal transmission. Replacement of the circuit at this time can be restored.

If the driver board is damaged, the LCD screen can not be opened normally, even if it can be opened can not display the image. This problem is caused by damage to the main board inside the screen, the maintenance of the most difficult, and the highest cost.

In addition to the above-mentioned faults, such as data line failure, circuit board failure, built-in power supply failure, etc., all need to be determined by some professional tests. Try to find professional technicians to help check, to avoid secondary damage caused by private repair.

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