US 12,449,697 B2
Backlight module, display module and display apparatus
Yu Wang, Beijing (CN); Wencheng Luo, Beijing (CN); Meilong Hu, Beijing (CN); Jinhong Zhang, Beijing (CN); Wenqi Quan, Beijing (CN); Wei Ran, Beijing (CN); Zhi Li, Beijing (CN); Hening Zhang, Beijing (CN); Bowen Xiong, Beijing (CN); Qiong Yuan, Beijing (CN); Xin Cen, Beijing (CN); Ke Liao, Beijing (CN); and Yiming Cheng, Beijing (CN)
Assigned to CHONGQING BOE OPTOELECTRONIC TECHNOLOGY CO., LTD., Chongqing (CN); and BEIJING BOE TECHNOLOGY DEVELOPMENT CO., LTD., Beijing (CN)
Appl. No. 18/552,796
Filed by Chongqing BOE Optoelectronics Technology Co., Ltd., Chongqing (CN); and BOE TECHNOLOGY GROUP CO., LTD., Beijing (CN)
PCT Filed Feb. 20, 2023, PCT No. PCT/CN2023/077073
§ 371(c)(1), (2) Date Sep. 27, 2023,
PCT Pub. No. WO2023/185312, PCT Pub. Date Oct. 5, 2023.
Claims priority of application No. 202210334476.3 (CN), filed on Mar. 31, 2022.
Prior Publication US 2025/0085590 A1, Mar. 13, 2025
Int. Cl. G02F 1/1335 (2006.01); G02F 1/13357 (2006.01)
CPC G02F 1/133612 (2021.01) [G02F 1/133603 (2013.01); G02F 1/133607 (2021.01); G02F 1/133608 (2013.01); G02F 1/133611 (2013.01); G02F 1/133628 (2021.01)] 19 Claims
OG exemplary drawing
 
1. A backlight module, comprising:
a light-emitting substrate, including a signal line group and a plurality of light-emitting units, the plurality of light-emitting units being electrically connected to the signal line group;
at least one chip-on-film arranged on a non-light exit side of the light-emitting substrate, the at least one chip-on-film being electrically connected to the signal line group;
a backplane disposed on the non-light exit side of the light-emitting substrate, and the at least one chip-on-film being located between the backplane and the light-emitting substrate; wherein the backplane is provided with a groove therein, a notch of the groove faces the light-emitting substrate, and at least a portion of a chip-on-film film of the at least one chip-on-film is disposed in the groove; and
a flexible circuit board, an end of the flexible circuit board being electrically connected to the light-emitting substrate,
wherein the backplane is provided with a first opening therein, and another end of the flexible circuit board passes through the first opening and extends to a side of the backplane away from the light-emitting substrate.