US 12,446,413 B2
Display panel and fabrication method thereof
Caiwen Li, Guangdong (CN); and Shijian Qin, Guangdong (CN)
Assigned to HUIZHOU CHINA STAR OPTOELECTRONICS DISPLAY CO., LTD., Guangdong (CN); and SHENZHEN CHINA STAR OPTOELECTRONICS SEMICONDUCTOR DISPLAYCO., LTD., Guangdong (CN)
Appl. No. 17/597,209
Filed by HUIZHOU CHINA STAR OPTOELECTRONICS DISPLAY CO., LTD., Guangdong (CN); and Shenzhen China Star Optoelectronics Semiconductor Display Technology Co., Ltd., Guangdong (CN)
PCT Filed Dec. 20, 2021, PCT No. PCT/CN2021/139597
§ 371(c)(1), (2) Date Dec. 29, 2021,
PCT Pub. No. WO2023/103071, PCT Pub. Date Jun. 15, 2023.
Claims priority of application No. 202111500828.X (CN), filed on Dec. 9, 2021.
Prior Publication US 2024/0040856 A1, Feb. 1, 2024
Int. Cl. H10K 59/124 (2023.01); H10K 59/12 (2023.01); H10K 77/10 (2023.01); H10K 102/00 (2023.01)
CPC H10K 59/124 (2023.02) [H10K 59/1201 (2023.02); H10K 77/111 (2023.02); H10K 2102/311 (2023.02)] 20 Claims
OG exemplary drawing
 
1. A display panel, comprising:
a flexible substrate; and
a transistor layer, wherein the transistor layer is disposed on the flexible substrate;
wherein the flexible substrate comprises:
a first organic insulating layer;
a first barrier layer, wherein the first barrier layer is disposed on a side of the first organic insulating layer close to the transistor layer, and a plurality of grooves are provided on a side of the first barrier layer away from the first organic insulating layer, and a thickness of the plurality of grooves accounts for 25%-55% of a thickness of the first barrier layer;
a second organic insulating layer, wherein the second organic insulating layer is disposed on the side of the first barrier layer away from the first organic insulating layer and extends into the plurality of grooves; and
a second barrier layer, wherein the second barrier layer is disposed on a side of the second organic insulating layer away from the first barrier layer;
wherein a surface of the first organic insulating layer close to the first barrier layer and a surface of the first barrier layer close to the first organic insulating layer are in contact with each other and both are flat surfaces.