公开(公告)号：EP4152399A1

公开(公告)日：2023-03-22

申请号：EP20897682.9

申请日：2020-05-11

申请人： BOE Technology Group Co., Ltd. ,  Chengdu BOE Optoelectronics Technology Co., Ltd.

发明人： ZHENG, Yong ,  DING, Wenbiao ,  DAI, Junxiu ,  GAO, Chunyan

IPC分类号： H01L27/32

摘要： A display panel (1000), a mask (120,120') used for evaporation, a mask assembly (100,110') and a method of manufacturing a mask assembly (100,110') are provided. The display panel (1000) includes: a base substrate (30); and a display area (1) and a peripheral area (2); wherein, the peripheral area (2) is provided with a first type of dummy sub-pixel unit (31, 31A) and a second type of dummy sub-pixel unit (31', 31A'), the first type of dummy sub-pixel unit (31, 31A) includes a first dummy light-emitting material layer (32, 43A) and a first dummy auxiliary light-emitting layer (42A), and the second type of dummy sub-pixel unit (31', 31A') includes a second dummy light-emitting material layer (32', 43A') and a second dummy auxiliary light-emitting layer (42A'); wherein, a first structure layer of the first dummy light-emitting material layer (32, 43A) and the first dummy auxiliary light-emitting layer (42A) is arranged in the same layer as a second structure layer of the second dummy light-emitting material layer (32', 43A') and the second dummy auxiliary light-emitting layer (42A'), and at least one of a size and a shape of an orthographic projection of the second structure layer on the base substrate (30) is different from that of an orthographic projection of the first structure layer on the base substrate (30).