US 12,471,482 B2
Display panel, manufacturing method therefor, and display apparatus
Jingang Fang, Beijing (CN); Luke Ding, Beijing (CN); Jun Liu, Beijing (CN); Wei Li, Beijing (CN); and Jun Cheng, Beijing (CN)
Assigned to Hefei Xinsheng Optoelectronics Technology Co., Ltd., Anhui (CN); and Beijing BOE Technology Development Co., Ltd., Beijing (CN)
Appl. No. 18/034,393
Filed by Hefei Xinsheng Optoelectronics Technology Co., Ltd., Anhui (CN); and BOE Technology Group Co., Ltd., Beijing (CN)
PCT Filed Dec. 24, 2020, PCT No. PCT/CN2020/139024
§ 371(c)(1), (2) Date Apr. 28, 2023,
PCT Pub. No. WO2022/133903, PCT Pub. Date Jun. 30, 2022.
Prior Publication US 2023/0413618 A1, Dec. 21, 2023
Int. Cl. H10K 59/80 (2023.01); H10K 59/12 (2023.01); H10K 59/126 (2023.01); H10K 59/131 (2023.01); H10K 59/88 (2023.01)
CPC H10K 59/80516 (2023.02) [H10K 59/1201 (2023.02); H10K 59/126 (2023.02); H10K 59/131 (2023.02); H10K 59/80522 (2023.02); H10K 59/88 (2023.02); H10K 59/1315 (2023.02)] 19 Claims
OG exemplary drawing
 
1. A display panel, comprising:
a base substrate;
a padding layer, wherein the padding layer is disposed on a side of the base substrate;
a thin film transistor structure layer, wherein the thin film transistor structure layer is disposed on a side of the base substrate;
a planarization layer, wherein the planarization layer is disposed on a side of the thin film transistor structure layer away from the base substrate;
an organic electroluminescent device, wherein the organic electroluminescent device is disposed on a side of the planarization layer away from the base substrate, and the organic electroluminescent device comprises an anode, an effective emitting layer, and a cathode that are stacked;
an auxiliary electrode, wherein the auxiliary electrode is disposed on a side of the padding layer away from the base substrate, and an orthographic projection of the auxiliary electrode on the base substrate has an overlapping region with an orthographic projection of the padding layer on the base substrate, and is not overlapped with an orthographic projection of the effective emitting layer on the base substrate; and
an ineffective emitting layer, wherein the ineffective emitting layer is disposed on a surface of the auxiliary electrode away from the base substrate, and there is a gap between an outer edge of the ineffective emitting layer and the effective emitting layer,
wherein in a direction away from the base substrate, the auxiliary electrode comprises a first sub-electrode, a second sub-electrode, and a third sub-electrode that are stacked sequentially, and a pitch between a surface of the second sub-electrode away from the base substrate and a surface of the base substrate is greater than a pitch between a surface of the planarization layer away from the base substrate and the surface of the base substrate.