公开(公告)号：US20240224716A1

公开(公告)日：2024-07-04

申请号：US17913172

申请日：2021-11-29

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

发明人： Nan DU ,  Guowei SU ,  ChiehHsing CHUNG ,  Yongyi FU ,  Yong ZHOU ,  Feng BAI ,  Saijun SUN ,  Kaihao CHEN ,  Suoping PENG ,  Kechao SONG ,  Zhengping XU ,  Sa LIU ,  Hexiong LI

IPC分类号： H10K59/80 ,  H10K59/12

CPC分类号： H10K59/873 ,  H10K59/1201

摘要： Provided are a display substrate and a preparation method thereof, and a display apparatus. The display substrate includes a display region and at least one hole region located in the display region, the hole region includes a function hole and a partition region surrounding the function hole, the partition region is provided with at least one partition dam surrounding the function hole; the partition dam includes a first partition layer disposed on a base substrate and a second partition layer disposed on a side of the first partition layer away from the base substrate, at least one partition layer includes a second sub-layer and a third sub-layer disposed on a side of the second sub-layer away from the base substrate, the third sub-layer has a protrusion with respect to a sidewall of the second sub-layer, and the protrusion and the sidewall of the second sub-layer form an inwardly recessed structure.