US 12,193,265 B2
OLED display panel and electronic device
Zhijun Wan, Guangdong (CN)
Assigned to SHENZHEN CHINA STAR OPTOELECTRONICS SEMICONDUCTOR DISPLAY TECHNOLOGY CO., LTD., Guangdong (CN)
Appl. No. 17/048,618
Filed by SHENZHEN CHINA STAR OPTOELECTRONICS SEMICONDUCTOR DISPLAY TECHNOLOGY CO., LTD., Guangdong (CN)
PCT Filed Sep. 8, 2020, PCT No. PCT/CN2020/113865
§ 371(c)(1), (2) Date Oct. 19, 2020,
PCT Pub. No. WO2022/027771, PCT Pub. Date Feb. 10, 2022.
Claims priority of application No. 202010786813.3 (CN), filed on Aug. 7, 2020.
Prior Publication US 2022/0045306 A1, Feb. 10, 2022
Int. Cl. H10K 50/86 (2023.01); H10K 59/122 (2023.01); H10K 59/38 (2023.01)
CPC H10K 50/865 (2023.02) [H10K 59/122 (2023.02); H10K 59/38 (2023.02)] 4 Claims
OG exemplary drawing
 
1. An OLED display panel, comprising a display area, wherein the display area comprises a light-emitting area and a non-light emitting area around the light-emitting area, and a cover;
wherein the cover comprises:
a base layer;
a color resist layer disposed on a surface of the base layer corresponding to the light-emitting area;
a black matrix layer disposed on a surface of the base layer and surrounding the color resist layer and located corresponding to the non-light emitting area; and
a planarization layer disposed on surfaces of the color resist layer and the black matrix layer away from the base layer, wherein the OLED display panel further comprises:
a first optical compensation layer disposed on a surface of the planarization layer away from the black matrix layer and located in an area corresponding to the black matrix layer;
a substrate disposed opposite to the cover;
a first barrier wall disposed on a surface of the substrate facing the cover and located in the non-light emitting area, wherein a first hollow chamber is defined by the first barrier wall;
a second barrier wall disposed on the surface of the first barrier wall away from the substrate and located in the non-light emitting area to expose part of the first barrier wall, wherein a second hollow chamber is defined by the second barrier wall;
an anode layer disposed in the first hollow chamber and laminated to the substrate;
a light-emitting functional layer disposed in the first hollow chamber on a surface of the anode layer away from the substrate;
an electron transport layer disposed on a surface of the second barrier wall away from the first barrier wall and extending to inner walls of the second hollow chamber and the first hollow chamber and a surface of the light-emitting functional layer away from the anode layer; and
a cathode layer disposed on a surface of the electron transport layer away from the second barrier wall,
wherein the second barrier wall has a refractive index less than the refractive index of the first barrier wall,
wherein the first optical compensation layer has a plurality of regular quadrangular pyramids.