公开(公告)号：US10775550B2

公开(公告)日：2020-09-15

申请号：US16112186

申请日：2018-08-24

申请人： HUIZHOU CHINA STAR OPTOELECTRONICS TECHNOLOGY CO.,LTD.

发明人： Jianyu Chang ,  Yungjui Lee ,  Yuchun Hsiao ,  Shengjer Changchien

IPC分类号： F21V21/00 ,  F21V8/00 ,  F21V9/32 ,  F21V9/38

摘要： The present disclosure relates to an optical film configured on a top of a light guide plate. The optical film is made of quantum dot (QD) material, and the optical film is filled with a plurality of diffusion particles configured to uniformly distribute incident light toward different angles. As such, the backlight emitted from the backlight module may be uniform and may be emitted toward different angles, the color difference and the chromaticity of the display device from different viewing angles may be the same, and the performance of the display device may be improved.