US 12,414,458 B2
Display panel and manufacturing method thereof
Lin Yang, Hubei (CN); Xianjie Li, Hubei (CN); Jiajia Luo, Hubei (CN); and Jinchang Huang, Hubei (CN)
Assigned to Wuhan China Star Optoelectronics Semiconductor Display Technology Co., Ltd., Wuhan (CN)
Appl. No. 17/254,879
Filed by Wuhan China Star Optoelectronics Semiconductor Display Technology Co., Ltd., Hubei (CN)
PCT Filed Mar. 4, 2019, PCT No. PCT/CN2019/076829
§ 371(c)(1), (2) Date Dec. 22, 2020,
PCT Pub. No. WO2020/133682, PCT Pub. Date Jul. 2, 2020.
Claims priority of application No. 201811579228.5 (CN), filed on Dec. 24, 2018.
Prior Publication US 2021/0273200 A1, Sep. 2, 2021
Int. Cl. H10K 77/10 (2023.01); H10K 50/844 (2023.01); H10K 59/80 (2023.01); H10K 71/00 (2023.01); H10K 59/12 (2023.01)
CPC H10K 77/111 (2023.02) [H10K 50/844 (2023.02); H10K 59/873 (2023.02); H10K 71/00 (2023.02); H10K 59/12 (2023.02); H10K 59/1201 (2023.02)] 15 Claims
OG exemplary drawing
 
1. A manufacturing method of a display panel, comprising steps of:
coating a layer of organic polymer on an upper surface of a hard layer, wherein the organic polymer is dried to form a flexible substrate;
placing a flexible substrate in a sulfydryl-containing organic solution, wherein after the flexible substrate is taken out, the organic solution is dried to form a transition layer to be in direct contact with the flexible substrate;
forming a buffer layer on an upper surface of the transition layer, wherein the buffer layer is in direct contact with the upper surface of the transition layer;
forming a driving layer on an upper surface of the buffer layer;
forming a functional layer on an upper surface of the driving layer; and
coating a thin film packaging layer on an upper surface of the functional layer, wherein the organic solution is selected from a group consisting of 2-mercaptopropionic acid, mercaptopropionic acid, and 3-mercaptobutyric acid, and the buffer layer comprises titanium dioxide or silicon dioxide, and
wherein material of the flexible substrate is selected from a group consisting of polyimide, diphenyl ether resin, and polyethylene naphthalate.