US 12,279,511 B2
Display panel, mask, mask assembly, and method of manufacturing mask assembly
Yong Zheng, Beijing (CN); Wenbiao Ding, Beijing (CN); Junxiu Dai, Beijing (CN); and Chunyan Gao, Beijing (CN)
Assigned to CHENGDU BOE OPTOELECTRONICS TECHNOLOGY CO., LTD., Sichuan (CN); and BOE TECHNOLOGY GROUP CO., LTD., Beijing (CN)
Appl. No. 17/271,013
Filed by Chengdu BOE Optoelectronics Technology Co., Ltd., Sichuan (CN); and BOE Technology Group Co., Ltd., Beijing (CN)
PCT Filed May 11, 2020, PCT No. PCT/CN2020/089601
§ 371(c)(1), (2) Date Feb. 24, 2021,
PCT Pub. No. WO2021/226788, PCT Pub. Date Nov. 18, 2021.
Prior Publication US 2022/0123068 A1, Apr. 21, 2022
Int. Cl. H10K 59/88 (2023.01)
CPC H10K 59/88 (2023.02) 9 Claims
OG exemplary drawing
 
1. A display panel, comprising:
a base substrate; and
a display area and a peripheral area arranged on the base substrate, the peripheral area being arranged around the display area;
wherein the peripheral area is provided with a plurality of dummy sub-pixel units comprising a plurality of first type of dummy sub-pixel units and at least one second type of dummy sub-pixel unit, each of the plurality of first type of dummy sub-pixel units comprises a first dummy light-emitting material layer and a first dummy auxiliary light-emitting layer, each of the at least one second type of dummy sub-pixel unit comprises a second dummy light-emitting material layer and a second dummy auxiliary light-emitting layer, the second dummy light-emitting material layer is made of the same material and arranged in the same layer as the first dummy light-emitting material layer, and the second dummy auxiliary light-emitting layer is made of the same material and arranged in the same layer as the first dummy auxiliary light-emitting layer; the first dummy auxiliary light-emitting layer is located on a side of the first dummy light-emitting material layer facing the base substrate and on a side of the base substrate facing the first dummy light-emitting material layer, and the second dummy auxiliary light-emitting layer is located on a side of the second dummy light-emitting material layer facing the base substrate and on a side of the base substrate facing the second dummy light-emitting material layer; an orthographic projection of the first dummy light-emitting material layer on the base substrate at least partially overlaps an orthographic projection of the first dummy auxiliary light-emitting layer on the base substrate, and an orthographic projection of the second dummy light-emitting material layer on the base substrate at least partially overlaps an orthographic projection of the second dummy auxiliary light-emitting layer on the base substrate;
wherein; at least one of a size and a shape of the orthographic projection of the second dummy light-emitting material layer on the base substrate is different from that of the orthographic projection of the first dummy light-emitting material layer on the base substrate, and at least one of a size and a shape of the orthographic projection of the second dummy auxiliary light-emitting layer on the base substrate is different from that of the orthographic projection of the first dummy auxiliary light-emitting layer on the base substrate; and
wherein each of the at least one second type of dummy sub-pixel unit is surrounded by first type of dummy sub-pixel units among the plurality of first type of dummy sub-pixel units.