背光
亮度
微观结构
材料科学
亮度
点(几何)
光电子学
计算机科学
光学
复合材料
物理
液晶显示器
数学
几何学
作者
Huili Xiao,Jiawen Zeng,Zi Wang,Guoqiang Lv,Qibin Feng
摘要
A backlight module is a key component of a liquid crystal display(LCD). The thickness of the backlight module affects the thickness of the display. In this paper, a design method based on the segment‐weighted is proposed for the miniLED backlight, which could reduce the thickness of the backlight module while ensuring uniformity of luminance. A surface microstructure is designed by discretizing the extended light source into a point source and designing the corresponding point microstructure using the point source based design method and the segment‐weighted method. The simulation results show that the brightness uniformity is 70%. To further improve the brightness uniformity, a diffusion film is added with the optical distance(OD) of 0.8mm, and the brightness uniformity is improved to 88%. The optical film designed in this paper can effectively improve the brightness uniformity and realize the ultra‐thin performance of the backlight.
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