US 12,253,757 B2
Backlight module and display device including the same
Ran Tao, Beijing (CN); Yongjie Xiang, Beijing (CN); Fan Yang, Beijing (CN); Zifeng Wang, Beijing (CN); Lei Cao, Beijing (CN); Yunpeng Wu, Beijing (CN); Yan Ren, Beijing (CN); and Wei Lin, Beijing (CN)
Assigned to BOE TECHNOLOGY GROUP CO., LTD., Beijing (CN)
Appl. No. 18/043,293
Filed by BOE TECHNOLOGY GROUP CO., LTD., Beijing (CN)
PCT Filed Jan. 5, 2022, PCT No. PCT/CN2022/070265
§ 371(c)(1), (2) Date Feb. 27, 2023,
PCT Pub. No. WO2023/070941, PCT Pub. Date May 4, 2023.
Claims priority of application No. PCT/CN2021/126900 (WO), filed on Oct. 28, 2021.
Prior Publication US 2024/0272480 A1, Aug. 15, 2024
Int. Cl. G02F 1/13357 (2006.01); G02F 1/1335 (2006.01)
CPC G02F 1/133608 (2013.01) [G02F 1/133603 (2013.01); G02F 1/133612 (2021.01)] 21 Claims
OG exemplary drawing
 
1. A backlight module, comprising:
a lamp panel comprising a first surface and a second surface opposite to each other, wherein the first surface comprises a light source array, and the second surface comprises a light source array driving circuit and an external terminal;
a first back plate connected with the lamp panel at a side of the second surface of the lamp panel, and comprising first avoiding openings corresponding to the light source array driving circuit and the external terminal;
a second back plate connected with the first back plate at a side of the first back plate away from the lamp panel, and comprising a second avoiding opening corresponding to the external terminal
an optical film layer located on the first surface of the lamp panel;
a film layer fixing member for fixing the optical film layer, the film layer fixing member comprising a film layer frame for supporting the optical film layer at its edge;
at least one light-transmitting support column comprising a base portion and a protrusion portion located on an upper surface of the base portion, the protrusion portion passing through the lamp panel and protruding from a side of the first surface of the lamp panel to support the optical film layer,
wherein the first back plate further comprises a third avoiding opening corresponding to the at least one light-transmitting support column, so that the base portion of the at least one light-transmitting support column is clamped between the lamp panel and the second back plate.