US 12,237,449 B2
Backlight module and manufacturing method therefor, and display apparatus
Enkai Dong, Beijing (CN); Liang Sun, Beijing (CN); and Jiacheng Qi, Beijing (CN)
Assigned to BOE MLED Technology Co., Ltd., Beijing (CN); and BOE Technology Group Co., Ltd., Beijing (CN)
Appl. No. 18/561,741
Filed by BOE MLED Technology Co., Ltd., Beijing (CN); and BOE Technology Group Co., Ltd., Beijing (CN)
PCT Filed May 27, 2021, PCT No. PCT/CN2021/096428
§ 371(c)(1), (2) Date Nov. 17, 2023,
PCT Pub. No. WO2022/246745, PCT Pub. Date Dec. 1, 2022.
Prior Publication US 2024/0274763 A1, Aug. 15, 2024
Int. Cl. H01L 33/54 (2010.01); G02F 1/1335 (2006.01); G02F 1/13357 (2006.01)
CPC H01L 33/54 (2013.01) [G02F 1/133603 (2013.01); G02F 1/133612 (2021.01)] 20 Claims
OG exemplary drawing
 
1. A backlight module comprising:
a driving backplate comprising a plurality of pads;
a plurality of light-emitting diodes electrically connected with the pads;
a plurality of transparent protection structures located at a side of the plurality of light-emitting diodes facing away from the driving backplate, wherein the transparent protection structures cover the light-emitting diodes, and a first distance is provided between a geometric center of an orthographic projection of a transparent protection structure on the driving backplate and a geometric center of an orthographic projection of a light-emitting diode on the driving backplate, a length of the orthographic projection of the light-emitting diode on the driving backplate is a second distance, a width of the orthographic projection of the light-emitting diode on the driving backplate is a third distance, a ratio of the first distance to the second distance is less than or equal to 1:2, and a ratio of the first distance to the third distance is less than or equal to 1:2.