公开(公告)号：US20210376017A1

公开(公告)日：2021-12-02

申请号：US16337591

申请日：2018-08-31

申请人： HEFEI XINSHENG OPTOELECTRONICS TECHNOLOGY CO., LTD. ,  BOE TECHNOLOGY GROUP CO., LTD.

发明人： Chin Lung LIAO

IPC分类号： H01L27/32 ,  H01L51/00

摘要： A pixel definition layer, a display substrate, a display device and an inkjet printing method are provided. The pixel definition layer includes a first pixel definition layer and a second pixel definition layer. The first pixel definition layer includes first openings, which include a first sub-pixel opening and a second sub-pixel opening; and an opening size of the second sub-pixel opening is larger than an opening size of the first sub-pixel opening. The second pixel definition layer is on the first pixel definition layer, and includes second openings, the second openings include a fourth sub-pixel opening and a fifth sub-pixel respectively corresponding to and connecting to the first sub-pixel opening and the second sub-pixel opening. A difference between opening sizes of the fourth sub-pixel opening and the first sub-pixel opening is larger than a difference between opening sizes of the fifth sub-pixel opening and the second sub-pixel opening.

公开(公告)号：US20210210570A1

公开(公告)日：2021-07-08

申请号：US17041495

申请日：2020-03-02

申请人： BOE TECHNOLOGY GROUP CO., LTD.

发明人： Xinwei GAO ,  Dandan ZANG ,  Peng LI ,  Qihe CHEN ,  Chin Lung LIAO

IPC分类号： H01L27/32 ,  H01L51/56

摘要： A display backplate and a manufacturing method thereof, and a display device are provided. The display backplate includes a base substrate and a pixel defining layer provided on the base substrate, the pixel defining layer defines a plurality of sub-pixel openings, an accommodation groove is provided at a surface of the pixel defining layer facing away from the base substrate, and the accommodation groove is located between two adjacent sub-pixel openings.