A comprehensive introduction to the functions of the LCD display backlight
Mar 02, 2022
The backlight of the lcd display plays a very important role in the use of the lcd display, so do you know what the functions of the backlight of the lcd display are?
The principle of LCD liquid crystal panel backlight is to assemble the reflector, light guide plate, upper and lower BEF, LED light bar and rubber frame iron frame. When the LED strip is charged, the element emits side view light, which becomes a flat light behind the light guide plate and provides backlighting for the LCD display. The control panels of televisions, mobile phones, computers and various smart devices all use LCD screens and are backlit. What is the function of the LCD backlight panel?
1. Mobile phone LCD panel backlight
There are several films behind the LCD screen of the mobile phone, they are a reflective film (silver), a light guide plate (transparent plastic sheet) and two optical diffractive films (the purpose is to make the light distribution more uniform).
2, TV LCD liquid crystal panel backlight
The LCD backlight of a TV is a light source device used to ensure the brightness behind the LCD screen.
Since the LCD liquid crystal panel itself does not emit light, it needs a backlight plate to assist the light emission, and the brightness and uniformity of the backlight plate directly affect the performance of the liquid crystal display.
