公开(公告)号：US11587988B2

公开(公告)日：2023-02-21

申请号：US16958931

申请日：2019-08-27

Applicant: BOE TECHNOLOGY GROUP CO., LTD.

Inventor： Yongfa Dong ,  Kuanta Huang ,  Shengji Yang ,  Pengcheng Lu ,  Qing Wang ,  Hui Tong ,  Yu Wang ,  Xiaobin Shen ,  Xiong Yuan ,  Dongsheng Li ,  Rongyuan Zou

IPC: H01L27/32 ,  H01L51/56 ,  G02B5/20 ,  G02B1/04 ,  C09D133/04 ,  C09D7/41 ,  C09D5/00 ,  C08K5/00 ,  C08K5/56 ,  C08K5/3417

Abstract: A preparation method of a color film layer, a display substrate and a preparation method thereof. The display substrate includes a bearing layer and repeating units, each repeating unit including a green film layer, a red film layer and a blue film layer, which are provided on the bearing layer and directly contacting a first surface of the bearing layer. On a plane parallel to the first surface of the bearing layer, in each repeating unit, the red film layer is provided on a first side of the green film layer, the blue film layer is provided on a second side of the green film layer opposite to the first side; one of the red film layer and the blue color film layer covers part of the green film layer; one part of the green film layer does not overlap with the red film layer and the blue film layer.