公开(公告)号：US20250017046A1

公开(公告)日：2025-01-09

申请号：US18546119

申请日：2022-11-29

Applicant: BOE Technology Group Co., Ltd.

Inventor： Chaolu Wang ,  Yongfeng Zhang ,  Renquan Gu ,  Feng Guan ,  Meng Zhao ,  Yang Lv ,  Jianhua Du ,  Hao Wu ,  Rui Yan ,  Wenqing Xue

IPC: H10K59/122 ,  H10K50/17 ,  H10K59/12 ,  H10K59/35 ,  H10K59/80

Abstract: A display substrate is provided. The display substrate includes a plurality of functional material layers extending at least partially across multiple subpixels. The plurality of functional material layers include a first portion in an inter-subpixel region, and a second portion in subpixel regions. The first portion includes a doped impurity. The first portion and the second portion include at least one functional material in common. A weight percentage of the doped impurity in the first portion is higher than a weight percentage of the doped impurity in the second portion. The first portion spaces apart adjacent subpixels. The second portion includes a light emitting layer of a respective subpixel.

公开(公告)号：US20240423007A1

公开(公告)日：2024-12-19

申请号：US18265045

申请日：2022-07-11

Applicant: BOE Technology Group Co., Ltd.

Inventor： Feng Guan ,  Yongfeng Zhang ,  Chaolu Wang ,  Meng Zhao

IPC: H10K50/12 ,  H10K50/115 ,  H10K59/00 ,  H10K59/12

Abstract: A display substrate and a preparation method thereof, a preparation apparatus and a display apparatus are provided, which relate to the technical field of display. The display substrate includes a plurality of light-emitting areas and non-light-emitting areas surrounding respective light-emitting areas. The display substrate includes: a base substrate; a light-emitting functional layer disposed at a side of the base substrate, the light-emitting functional layer including a light-emitting material located in the plurality of light-emitting areas and the non-light-emitting areas. The light-emitting material in the non-light-emitting areas is doped with destructive ions, and the destructive ions are configured for destroying luminescent characteristics of the light-emitting material in the non-light-emitting area.