US 12,349,301 B2
Method of manufacturing tiled display screen, and tiled display screen
Meiling Gao, Beijing (CN)
Assigned to BOE Technology Group Co., Ltd., Beijing (CN)
Appl. No. 17/912,387
Filed by BOE Technology Group Co., Ltd., Beijing (CN)
PCT Filed Nov. 9, 2021, PCT No. PCT/CN2021/129589
§ 371(c)(1), (2) Date Sep. 16, 2022,
PCT Pub. No. WO2022/179182, PCT Pub. Date Sep. 1, 2022.
Claims priority of application No. 202110219625.7 (CN), filed on Feb. 26, 2021.
Prior Publication US 2023/0209737 A1, Jun. 29, 2023
Int. Cl. H05K 5/00 (2025.01); H05K 5/03 (2006.01); H05K 5/30 (2025.01)
CPC H05K 5/30 (2025.01) [H05K 5/03 (2013.01)] 8 Claims
OG exemplary drawing
 
1. A method of manufacturing a tiled display screen, comprising:
providing a parent panel, and performing a first cutting on the parent panel to obtain a plurality of display panels, wherein each of the plurality of display panels comprises a first frame area at the periphery of a display area and a reserved cutting frame area at the periphery of the first frame area;
performing following operations on each of the plurality of display panels to obtain a plurality of sub-display screens:
providing a protective cover plate;
attaching the protective cover plate onto a top surface of the display panel to form a display sub-module, wherein the protective cover plate comprises a second frame area at the periphery of the display area, and a frame width of the first frame area is greater than a frame width of the second frame area; wherein the frame width of the first frame area is 0.2 mm to 1.0 mm greater than the frame width of the second frame area;
performing a second cutting on the display sub-module, with a cutting line of the second cutting being a boundary line between the first frame area and the reserved cutting frame area, and removing the reserved cutting frame area to obtain the sub-display screen; and
tiling the plurality of sub-display screens each including the obtained sub-display screen to obtain the tiled display screen.