LCD screen white dots
The occurrence rate of the problem. Before repairing it, I remind you that it is still necessary to find out how this spot is formed. Usually, we can see two types of spots: white spots and dark spots. In the case of dark spots or black spots, in most cases, it is a shading effect. This effect is mainly caused by the deformation of the glass substrate under pressure.
Laptop LCD screen white dots
Generally, for dark spots like this or black spots, the probability of successful repair is quite low. In this case, I can only be depressed. But the white spot is different. Most of its causes are dust in its backlight group, and some are formed after pressure. For the specific position of this white spot, we can completely remove the glass substrate, then power on the lamp, and use this method to check the corresponding backlight group layer by layer. In this way, we can easily find the location of the white spot.
After the summary and analysis of Xiao Bian, it is concluded that white spots will form here. This light guide plate is actually the thickest and transparent glass plate in the backlight group. The surface of this glass plate will be covered with light guide points. Once there is dust, grease or wear on the surface of the light guide plate, white spots will naturally form.
There are several ways to repair white spots. First, replace the light guide plate directly. This is for surface wear. The second is to carefully clean the corresponding light guide plate with a kind of vacuum cloth and cleaning solution. Make sure to completely remove the stains on the surface, then the white spots will disappear
Through the report above, I believe you have a deep understanding of the LCD screen white dots of laptops, right? We know the causes of these problems, so it will be more convenient to repair them in the future. At least we know where to start.
Laptop LCD Module Laptop LED Panel Display