How to judge whether the mobile phone LCD screen is damaged?

 How to judge whether the mobile phone LCD screen is damaged?

Answer:

The mobile phone LCD screen has bright spots or dark spots: If there are fixed bright spots or dark spots on the screen, it may be that the liquid crystal molecules are damaged.

The mobile phone LCD screen has color distortion: The color displayed on the screen is inaccurate, which may be due to the aging of the liquid crystal layer or the backlight problem.

The mobile phone LCD screen is fuzzy: The screen display is fuzzy, which may be a circuit failure inside the screen.

The backlight of the mobile phone LCD screen is not bright: The screen is completely dark, but the phone still responds, which may be a backlight failure.

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