What Is the Difference Between LED and Direct Luminescence

The LED backlight source of the side luminous patch is the backlight made of line -shaped or dot -shaped light sources on the side of the side of the special light guide plate. The straight backlit backlight process is relatively simple. It does not require the light guide board. It is to place the light source (LED chip array) and PCB at the bottom of the backlight. After the light is shot from the LED The membrane shoots uniformly. Extension Answer: When the LED backlighting source is applied to a large -sized LCD, the weight and cost of the light guide board will increase with the size, and the light brightness and uniformity will not be ideal. At the same time Because LCD TVs cannot achieve the regional dynamic control of LCD TVs, they can only achieve simple one -dimensional light adjustment, while the straight -down LED backlight performance is better. It can achieve regional dynamic control of LCD TV. The side light backlight can be very thin, but the light utilization rate of the backlight source is small, and the thinner the utilization rate, the smaller the utilization rate. The core of its technology is the design and production of the light guide board. At present, there are two types of printing and shooting forming shapes. In the form of the light guide board, other such as shooting molding plus printing, laser dots, corrosion, etc., are not suitable for batch production principles. The advantages of straight down backlight technology are high -profile, good outlet viewing angle, high light utilization efficiency, simple structure, etc. Reserve a certain space between the diffuser and the LED light source to improve the uniformity of brightness. Therefore, the straight backlight also increases the thickness, weight, and power consumption of the module. Therefore Light backlight.