What causes the backlight to cause bad black spots

  The backlight is basically a simple product made entirely from mobile phones. Because of his low investment, many small companies rarely introduce equipment, but most of the processes are done manually, and the environment is not dust-free. The room requirements, so the proportion of black spots has increased significantly.

Backlight

1. The source of black spots in a small number of sectors is caused by materials. Many backlight manufacturers in order to save costs and reduce the cost of products, they purchase a relatively poor, low-priced acrylic, a penny of goods, such an acrylic inside is definitely More or less a black spot impurity will appear.

2. When the backlight manufacturer produces screen printing dots, due to the poor factory environment and the operation problem, black spots impurities appear when the screen printing backlight dots are generated, but since the black dots are on the back side of the backlight, it is not good. obvious.

3. Black spots in the diaphragm, low-cost diaphragm, due to the problem of the operating environment, when the diaphragm is covered, impurities appear inside to form black spots.

4. Black spots are caused during assembly. When the employee is filming, he does not pay attention to the operation method and 7S, resulting in a good film product, which is prone to black spots.