What is the LED backlight? How big is it?,
Edge light. A linear or point light source is provided on the back light of the side of the specially designed light guide plate. According to the actual needs, it can be made into two sides or even three sides. Edge light backlight generally can do very thin, but the light utilization rate of light sources is thinner and thinner, and the utilization ratio is smaller, the most is about 50%. The core of the technology is the design and manufacture of the light guide plate. The most commonly used side lights are LED light, backlight, and CCFL backlight. With the development of LCD module to brighter, lighter and thinner, the side light CCFL backlight source has become the mainstream of the development of backlight.
According to the light source type, there are three kinds of backlight types: EL, CCFL and LED. The light source is divided into side light type and vertical type (bottom back light type) according to the different position of light source. Here's a brief introduction.
The backlight (BackLight) is a light source behind the liquid crystal display (LCD), and its luminous effect will directly affect the visual effects of the liquid crystal display module (LCM). The LCD itself does not emit light; it displays graphics or characters as a result of modulation of light.
