lcd graphic display

LCD module displays entire part without housing, which includes (back, LED lights, reflective film, LGP, up and down the proliferation of film, brightness enhancement film) composed backlighting, also known as the B / L, there is a glass board, PCB board and liquid crystal composition open-cell. Principle of lcd module displays backlight unit is uniform lcd graphic display  emitted light, the light transmitted through the LCD screen of our eyes. The screen in pixels is the role of these light processing to display an image. Selection of the liquid crystal panel manufacturing control IC, filter and orientation film parts, and the contrast of the panel concerned, the lcd modules  user, the contrast ratio can be up to 350: 1 is sufficient, but that the contrast level in the

professional field can not meet the needs of users.LCD module displays is the power terminals, instrumentation and other components is the LCD display module, its status is equivalent to the CRT tube. The other part includes a power supply circuit, a signal processing circuit. The main screen is divided into lcd module displays and backlight components. The two parts are assembled together, but when the work is independent of (i.e., the circuit is not relevant).