US 12,389,750 B2
Display panel, display device, and method for preparing display panel
Xinwei Gao, Beijing (CN); and Huaiting Shih, Beijing (CN)
Assigned to Hefei BOE Joint Technology Co., Ltd., Anhui (CN); and BOE Technology Group Co., Ltd., Beijing (CN)
Appl. No. 17/799,385
Filed by Hefei BOE Joint Technology Co., Ltd., Anhui (CN); and BOE Technology Group Co., Ltd., Beijing (CN)
PCT Filed Oct. 22, 2021, PCT No. PCT/CN2021/125861
§ 371(c)(1), (2) Date Aug. 12, 2022,
PCT Pub. No. WO2022/156291, PCT Pub. Date Jul. 28, 2022.
Claims priority of application No. 202110097027.7 (CN), filed on Jan. 25, 2021.
Prior Publication US 2023/0345765 A1, Oct. 26, 2023
Int. Cl. H10K 59/122 (2023.01); H10K 50/15 (2023.01); H10K 50/16 (2023.01); H10K 59/12 (2023.01); H10K 71/13 (2023.01); H10K 101/30 (2023.01)
CPC H10K 59/122 (2023.02) [H10K 50/15 (2023.02); H10K 50/16 (2023.02); H10K 59/1201 (2023.02); H10K 71/135 (2023.02); H10K 2101/30 (2023.02)] 13 Claims
OG exemplary drawing
 
1. A display panel, comprising:
a base substrate;
a first electrode layer on a side of the base substrate;
a pixel defining layer on a side of the first electrode layer facing away from the base substrate; the pixel defining layer being provided with a plurality of pixel openings;
a light-emitting layer provided with a plurality of light-emitting portions within the plurality of pixel openings;
an electron transport layer, comprising:
a plurality of electron transport portions, within the plurality of pixel openings and on sides of the plurality of light-emitting portions facing away from the first electrode layer;
wherein a color of emitted light of a light-emitting material of an electron transport portion of the plurality of electron transport portions within one pixel opening is different from a color of emitted light of a light-emitting portion of the plurality of light-emitting portions within the one pixel opening; and
a light-emitting center of the one pixel opening is within the light-emitting portion of the plurality of light-emitting portions within the one pixel opening; and
a second electrode layer on a side of the electron transport layer facing away from the light-emitting layer.