US 12,349,580 B2
Mother board with improved water resistance for display panel, display panel, and display device
Xinwei Gao, Beijing (CN); Peng Li, Beijing (CN); and Shuai Zhang, Beijing (CN)
Assigned to Hefei BOE Joint Technology Co., Ltd., Hefei (CN); and BOE TECHNOLOGY GROUP CO., LTD., Beijing (CN)
Appl. No. 17/997,027
Filed by HEFEI BOE JOINT TECHNOLOGY CO., LTD., Hefei (CN); and BOE TECHNOLOGY GROUP CO., LTD., Beijing (CN)
PCT Filed Oct. 29, 2021, PCT No. PCT/CN2021/127263
§ 371(c)(1), (2) Date Oct. 24, 2022,
PCT Pub. No. WO2023/070489, PCT Pub. Date May 4, 2023.
Prior Publication US 2024/0237484 A1, Jul. 11, 2024
Int. Cl. H10K 59/80 (2023.01); H10K 59/122 (2023.01)
CPC H10K 59/873 (2023.02) [H10K 59/122 (2023.02)] 20 Claims
OG exemplary drawing
 
1. A mother board for a display panel, the mother board for the display panel having a first panel region and a bonding region on a side of the first panel region, wherein the first panel region has a retaining region and a peripheral region located outside the retaining region; the mother board for the display panel comprising:
a base substrate,
a cover plate arranged opposite to the base substrate,
a first light-emitting functional layer,
a first adhesive layer, and
a first spacing layer arranged between the base substrate and the cover plate;
wherein the first light-emitting functional layer is located in the first panel region;
wherein the first adhesive layer surrounds the first panel region and is adhered to the cover plate and the base substrate, and an orthographic projection of an edge of the first adhesive layer on a side of the first adhesive layer close to the bonding region on the base substrate defines a first pattern; and
wherein the first spacing layer is located at an edge of the retaining region, and the first light-emitting functional layer in the retaining region is spaced from the first light-emitting functional layer in the peripheral region by the first spacing layer, an orthographic projection of the first spacing layer on the base substrate partially overlaps with the first pattern and forms a second pattern with the first pattern; wherein the second pattern is a closed pattern, and the orthographic projection of the first spacing layer on the base substrate is located within a range of a pattern defined by an orthographic projection of the first adhesive layer on the base substrate.