Classification of LED backlights
(1)Classification 1 of LED backlight: edge light type.
It is a backlight made by placing linear or point light sources on the sides of a specially designed light guide plate. According to the needs of actual use, it can be made into a bilateral type or even a three-sided type.
LED lights are also called light-emitting diodes. The power consumption of a single LED light is minimal. From blue to red, LED lights come in many colors. Among various colors, they can be roughly divided into two types: high brightness and low brightness. Since white is a mixed color, it has no identifiable wavelength value.
(2)Classification 2 of LED backlight: bottom backlight.
It is a flat surface light source with a certain structure. It can be a continuous and uniform surface light source, such as EL or flat fluorescent lamp; it can also be composed of more point light sources, such as dot matrix LED or incandescent backlight, etc.
The advantages of LED bottom backlight are:
Good brightness and good uniformity. The disadvantage is that the thickness is large (greater than 4.0mm), the number of LEDs used is large, and the heating phenomenon is obvious. Generally, low-brightness colors are used for design, while high-brightness colors are basically not considered due to high cost. WA products are Weizhi bottom backlights
