US 12,228,765 B2
Curved optical plate and method of manufacturing the same, backlight module and display device
Yuhang Lin, Beijing (CN); Zhiying Chen, Beijing (CN); Chengkun Liu, Beijing (CN); Han Zhang, Beijing (CN); Hongyu Zhao, Beijing (CN); Ming Chen, Beijing (CN); Zhijie Guo, Beijing (CN); Lian Fang, Beijing (CN); Long Hu, Beijing (CN); Ting Cui, Beijing (CN); Liangliang Ren, Beijing (CN); and Kai Diao, Beijing (CN)
Assigned to FUZHOU BOE OPTOELECTRONICS TECHNOLOGY CO., LTD., Fujian (CN); and BOE TECHNOLOGY GROUP CO., LTD., Beijing (CN)
Appl. No. 18/027,294
Filed by Fuzhou BOE Optoelectronics Technology Co., Ltd., Fujian (CN); and BOE TECHNOLOGY GROUP CO., LTD., Beijing (CN)
PCT Filed Jun. 29, 2022, PCT No. PCT/CN2022/102562
§ 371(c)(1), (2) Date Mar. 20, 2023,
PCT Pub. No. WO2024/000334, PCT Pub. Date Jan. 4, 2024.
Prior Publication US 2024/0210614 A1, Jun. 27, 2024
Int. Cl. F21V 8/00 (2006.01)
CPC G02B 6/0093 (2013.01) [G02B 6/0065 (2013.01); G02B 6/0068 (2013.01); G02B 6/0081 (2013.01); G02B 6/0088 (2013.01); G02B 6/002 (2013.01); G02B 6/0045 (2013.01); G02B 6/0058 (2013.01)] 13 Claims
OG exemplary drawing
 
1. A backlight module, comprising:
a backboard including a bottom plate and a surrounding plate that extends from an edge of the bottom plate to a side of the bottom plate; the bottom plate and the surrounding plate defining an accommodation space;
a light source located in the accommodation space; and
a curved optical plate located in the accommodation space; wherein a light incident surface of the curved optical plate faces the light source; the curved optical plate includes a curved light exit surface including at least one curved edge and at least one uncurved edge, and at least one first side surface connected to the uncurved edge of the light exit surface; a first side surface of the at least one first side surface includes a first surface, the first surface extends towards an interior of the curved optical plate, and an orthographic projection of the first surface on the bottom plate is at least partially located within an orthographic projection of the light exit surface on the bottom plate.