US 12,464,659 B2
Display device
Yongqiang Du, Beijing (CN); and Hui Zhao, Beijing (CN)
Assigned to Chengdu BOE Optoelectronics Technology Co., Ltd., Chengdu (CN); and Beijing BOE Technology Development Co., Ltd., Beijing (CN)
Appl. No. 18/032,596
Filed by Chengdu BOE Optoelectronics Technology Co., Ltd., Chengdu (CN); and BOE Technology Group Co., Ltd., Beijing (CN)
PCT Filed Nov. 30, 2020, PCT No. PCT/CN2020/132894
§ 371(c)(1), (2) Date Apr. 19, 2023,
PCT Pub. No. WO2022/110193, PCT Pub. Date Jun. 2, 2022.
Prior Publication US 2023/0389200 A1, Nov. 30, 2023
Int. Cl. H05K 5/02 (2006.01)
CPC H05K 5/0217 (2013.01) 15 Claims
OG exemplary drawing
 
1. A display device, comprising:
a housing, wherein an accommodating space is provided inside the housing, and an opening is provided on a surface of the housing;
a reel, rotatably installed in the accommodating space around its own axis;
a flexible display screen, having a start end and a terminal end opposite each other, and a display surface and a fitting surface opposite each other; wherein the start end is connected with the reel, and the terminal end is in a free state to allow the flexible display screen is capable of being rolled around the reel or unrolled; and when the flexible display screen is in a rolled state, the flexible display screen is accommodated in the accommodating space, and when the flexible display screen is in an unrolled state, the terminal end extends out of the housing from the opening;
an adsorption device, comprising a display screen adsorption plate located outside the housing, and the display screen adsorption plate is provided with an adsorption surface, wherein when the flexible display screen is in an unrolled state, the adsorption device adsorbs the flexible display screen to enable the fitting surface to be attached to the adsorption surfaces;
wherein the start end of the flexible display screen is connected to the reel via a supporting structure, and the supporting structure is in smooth and transitional connection with the start end; and
wherein the adsorption device further comprises a power device and a power connecting pipe located in the accommodating space; a hollow structure is provided inside the display screen adsorption plate to form an airflow cavity in communication with the power connecting pipe, and the adsorption surface of the display screen adsorption plate is provided with a plurality of air holes in communication with the airflow cavity; and the power device is configured to be connected with the power connecting pipe to form adsorption air pressure for adsorbing the flexible display screen at the plurality of air holes.