US 12,228,817 B2
Display device and control method therefor
Ming Chen, Beijing (CN); Nani Liu, Beijing (CN); Kai Diao, Beijing (CN); Han Zhang, Beijing (CN); Long Hu, Beijing (CN); Hongyu Zhao, Beijing (CN); Siyu Wu, Beijing (CN); Jingran Niu, Beijing (CN); Jiwei Sun, Beijing (CN); Yuhang Lin, Beijing (CN); and Dingjie Zheng, Beijing (CN)
Assigned to Fuzhou BOE Optoelectronics Technology Co., Ltd., Fujian (CN); and BOE Technology Group Co., Ltd., Beijing (CN)
Appl. No. 18/021,727
Filed by Fuzhou BOE Optoelectronics Technology Co., Ltd., Fujian (CN); and BOE Technology Group Co., Ltd., Beijing (CN)
PCT Filed Apr. 29, 2022, PCT No. PCT/CN2022/090500
§ 371(c)(1), (2) Date Feb. 16, 2023,
PCT Pub. No. WO2023/206441, PCT Pub. Date Nov. 2, 2023.
Prior Publication US 2024/0264486 A1, Aug. 8, 2024
Int. Cl. G02F 1/00 (2006.01); G02F 1/13357 (2006.01)
CPC G02F 1/133603 (2013.01) 19 Claims
OG exemplary drawing
 
1. A display device, comprising:
a first backlight module;
a second backlight module, located at a light emergent side of the first backlight module; and
a display panel, located at a side of the second backlight module facing away from the first backlight module; wherein:
the first backlight module comprises a first light board, and the first light board emits light to a side of the second backlight module;
the second backlight module comprises at least one second light board, second light boards of the at least one second light board are stacked, and the second light boards transmit the light emitted by the first backlight module and emit light to the display panel; and
the first light board comprises a plurality of first light sources, each second light board of the second light boards comprises a plurality of second light sources, and orthographic projections of the first light sources and the second light sources on the display panel do not overlap each other;
wherein the second backlight module comprises a plurality of the second light boards, and a second light source at a side of a second light board close to the display panel has a smaller size than a second light source at a side of a second light board far away from the display panel.