Chinese New Year TV purchase book: purchase must pay attention to various parameters
Generally, there will be more or less "bright spots" on the LCD screen. The "bright spots" are not carefully viewed, so it is difficult to detect them. Therefore, consumers must carefully observe the screen when purchasing. The easiest way to do this is to make the screen black and see if there are bright spots in a piece of pure black. Then let the screen be white and see if there are any black spots. Last
ALLIN , https://www.apiodisplays.com