US 11,991,841 B2
Splicing display screen and manufacturing method thereof
Dengqian Li, Shenzhen (CN); and Rong Xia, Shenzhen (CN)
Assigned to SHENZHEN CHINA STAR OPTOELECTRONICS SEMICONDUCTOR DISPLAY TECHNOLOGY CO., LTD., Shenzhen (CN)
Appl. No. 17/298,526
Filed by SHENZHEN CHINA STAR OPTOELECTRONICS SEMICONDUCTOR DISPLAY TECHNOLOGY CO., LTD., Shenzhen (CN)
PCT Filed Apr. 30, 2021, PCT No. PCT/CN2021/091272
§ 371(c)(1), (2) Date May 28, 2021,
PCT Pub. No. WO2022/217662, PCT Pub. Date Oct. 20, 2022.
Claims priority of application No. 202110408930.0 (CN), filed on Apr. 16, 2021.
Prior Publication US 2023/0300994 A1, Sep. 21, 2023
Int. Cl. H05K 5/00 (2006.01); C09J 201/00 (2006.01)
CPC H05K 5/0021 (2013.01) [C09J 201/00 (2013.01)] 11 Claims
OG exemplary drawing
 
1. A splicing display screen, comprising:
a backplate;
a plurality of sub-display panels disposed on the backplate, wherein each of the sub-display panels comprises a first sub-surface and a second sub-surface corresponding to each other, the first sub-surface is disposed on a side of one of the sub-display panels away from the backplate and is configured to display images; and
an adhesive layer disposed between the backplate and the sub-display panels;
wherein a plurality of the first sub-surfaces are disposed on a same plane, the sub-display panels are aligned to form a display panel, a gap is defined between two adjacent sub-display panels, the adhesive layer at least corresponds to a plurality of the gaps, the gap is not wider than 0.2 millimeters, and portions of the adhesive layer corresponding to the gaps are formed by a dispensing process;
wherein the second sub-surface of each of the sub-display panels is provided with a circuit portion, the circuit portion is electrically connected to film layers in each of the sub-display panels through wires, and the circuit portion is positioned at any one or more sides away from the corresponding gap;
wherein the adhesive layer comprises a first adhesive layer comprising a plurality of first sub-adhesive portions, the first sub-adhesive portions correspond to the gaps, each of the first sub-adhesive portions connects two corresponding sub-display panels, and a width of each of the first sub-adhesive portions is greater than a width of the corresponding gap;
wherein the adhesive layer further comprises a second adhesive layer disposed on a side of the first adhesive layer adjacent to the backplate, the second adhesive layer at least corresponds to an edge region of the display panel, and the second adhesive layer connects the sub-display panels and the backplate; and
wherein the second adhesive layer at least covers an edge region of the display panel, and a material of the second adhesive layer is different from a material of the first adhesive layer.