Power terminal, instruments and other display components is oled display module, its status is equivalent to the CRT tube. OLED display module is divided into screen and backlight components. The two parts are assembled together, but when the work is independent. Principle OLED display module is the backlight unit issued uniform surface light, the light transmitted through the LCD screen in our eyes. Role OLEDdisplay module panel is light in pixels of the processing to display an image. OLED display module simple point that is screen, backlit panels, PCB board, iron box. OLED display module manufacturing selected control IC, filter and directed film accessories. Contrast is very important, arguably a more important indicator than the highlights of selected LCD, when you know your customers to buy the LCD is used for entertainment watching DVDs, you can emphasize the contrast is more important than no dead pixels, we look at when streaming, the general brightness sources for little, but to see chiaroscuro character scenes, gray hair texture changes to black, to rely on the level of contrast to visualize the.