关键词: LED背光模组, LED灯珠, 导光板, 膜片

Abstract:

As a key factor in the design,the LCD TV backlight module is experiencing a transformation from the LCD module to the LED module and from small size LED module to large size LED module.What is important in backlight design is how to transform the LED light source into uniform surface light source while ensuring the necessary light energy utilization.Especially in the large-size backlight module,each component of the backlight module must be considered and computed in the early design to reduce costs.Simulation results show that the central scale≥420 cd/m²,the light uniformity≥76％,and other indexes such as color coordinator,visual angle and painting quality meet the design requirement.

Key words: backlight;LED light;LED guide plate;optical films