How to determine the bright spot and dark spot of liquid crystal display

Screen highlights are generally refers to the LCD display can not repair the single color point. The crystal surface of the liquid crystal display is a whole cutting lens, in the process if there is a slight vibration or dust fall into the crystal structure, then this bright spot will be produced, and can not be repaired. Highlights are generally light blue and red mostly, and sometimes white, but also a small part of green. This is related to the ingredients of bright spots.

A dark point is a lattice in which no crystal structure can be altered to produce light, i.e. no light can be emitted and black. After the production of the LCD panel, in the future use of the process, the general bright dark points will not increase.

At present, our country for (LED, LCD) screen, liquid crystal display requirements for less than 3, less than 1 bad points. That is, if a monitor has 3 or more than three bright spots, you can return to exchange treatment.

Highlight:

Dark Dots: