US 12,336,365 B2
Organic light-emitting display panel and organic light-emitting display device
Yepeng Xiang, Wuhan (CN); and Mugyeom Kim, Wuhan (CN)
Assigned to WUHAN CHINA STAR OPTOELECTRONICS SEMICONDUCTOR DISPLAY TECHNOLOGY CO., LTD., Wuhan (CN)
Appl. No. 17/780,301
Filed by WUHAN CHINA STAR OPTOELECTRONICS SEMICONDUCTOR DISPLAY TECHNOLOGY CO., LTD., Wuhan (CN)
PCT Filed May 23, 2022, PCT No. PCT/CN2022/094417
§ 371(c)(1), (2) Date May 26, 2022,
PCT Pub. No. WO2023/206674, PCT Pub. Date Nov. 2, 2023.
Claims priority of application No. 202210470568.4 (CN), filed on Apr. 28, 2022.
Prior Publication US 2023/0354628 A1, Nov. 2, 2023
Int. Cl. H10K 50/11 (2023.01); H10K 71/00 (2023.01); H10K 101/30 (2023.01); H10K 101/40 (2023.01); H10K 102/00 (2023.01)
CPC H10K 50/11 (2023.02) [H10K 71/00 (2023.02); H10K 2101/30 (2023.02); H10K 2101/40 (2023.02); H10K 2102/351 (2023.02)] 20 Claims
OG exemplary drawing
 
1. An organic light-emitting display panel, comprising:
a substrate;
a first electrode disposed on the substrate;
a second electrode disposed on a side of the first electrode away from the substrate and opposite to the first electrode; and
a light-emitting layer disposed between the first electrode and the second electrode, wherein the light-emitting layer comprises at least two light-emitting units arranged in layers, each of the light-emitting units comprises a first light-emitting sublayer, a second light-emitting sublayer, and a third light-emitting sublayer, the third light-emitting sublayer is disposed between the first light-emitting sublayer and the second light-emitting sublayer;
wherein the first light-emitting sublayer and the second light-emitting sublayer are both one of a host material layer and a guest material layer, and the third light-emitting sublayer is another one of the host material layer and the guest material layer; and
wherein a thickness of the light-emitting layer between two adjacent third light-emitting sublayers is greater than a thickness of each of the first light-emitting sublayer and the second light-emitting sublayer located respectively at two ends of the light-emitting layer.