LCD panel specification grade division
The so-called bad point is the LCD panel, can not normally display pixel collectively. The LCD panel is composed of many pixels, and the liquid crystal substance on each display point changes the light transmission state under the control of electrical signals. At 1024*768 resolution, the LCD has a total of 786,432 display points, so many points are difficult to fully guarantee individual problems. At present, the technology can not completely overcome the absence of bad points, so the level of the panel is judged according to the number of bad points. Manufacturers will generally avoid bad point segmentation LCD panel, no bad point or very little bad point LCD panel sold at a high price, and the number of bad points is more low price treatment.
At present, the main classification standards of panels are:
Korean manufacturers, below 3 for A grade
Japanese manufacturers, below 5 for A class
Taiwan manufacturers, below 8 for A class
Mainstream LCD brand key indicators:
AA: The LCD monitor without any bad spots is AA.