公开(公告)号：US20230085315A1

公开(公告)日：2023-03-16

申请号：US17802263

申请日：2021-10-22

Applicant: BOE Technology Group Co., Ltd.

Inventor： Na BI ,  Shanshan BAI ,  Yue LIU

IPC: C23C14/04 ,  B23K26/24

Abstract: Disclosed are a mask and a manufacturing method for the mask, aiming to solve the problem in the prior art of the easy occurrence of color mixing due to the inaccurate position of evaporation when a pattern of a light-emitting substrate is formed by means of a mask. The mask for covering a mother board, which is formed by a multi-division exposure procedure and thus has a substrate invalid region that cannot be exposed due to the multi-division exposure procedure, comprises: a metal frame; a support mask located on one side of the metal frame; at least one fine metal mask strip, which is located on the side of the support mask that faces away from the metal frame, and is provided with multiple openings for the evaporation of a light-emitting film for sub-pixels in the mother board; and a support plate located between the metal frame and the fine metal mask for covering the substrate invalid region, with the thickness of the support plate being greater than that of the support mask.

公开(公告)号：US20230074902A1

公开(公告)日：2023-03-09

申请号：US17800683

申请日：2021-11-11

Applicant: BOE Technology Group Co., Ltd.

Inventor： Guanyin WEN ,  Yue LIU

IPC: H01L27/32 ,  H01L51/56 ,  H01L51/00

Abstract: Provided are a display substrate and a related device, belonging to the technical field of display. The display substrate includes a first sub-pixel and a second sub-pixel provided on a base substrate and having different colors. An orthographic projection of a first organic light-emitting layer of the first sub-pixel and an orthographic projection of a second organic light-emitting layer of the second sub-pixel onto the base substrate have an overlapping area, an insulating blocking layer is provided between the first organic light-emitting layer and the second organic light-emitting layer, and an orthographic projection of the blocking layer onto the base substrate covers at least part of the overlapping area. The technical solution of the present disclosure can prevent crosstalk between adjacent pixels.

公开(公告)号：US20220310711A1

公开(公告)日：2022-09-29

申请号：US17439940

申请日：2021-01-05

Applicant: BOE Technology Group Co., Ltd.

Inventor： Yue LIU ,  Shanshan BAI ,  Weiwei WANG ,  Xinxing GUAN ,  Benlian WANG

IPC: H01L27/32

Abstract: The disclosure provides a pixel array and a display device. The pixel array includes a plurality of sub-pixels, each of which has a virtual pixel center, the plurality of sub-pixels include first sub-pixels, second sub-pixels, and third sub-pixels; virtual centers of two first sub-pixels and two third sub-pixels are sequentially connected to form a second virtual quadrangle; a first virtual polygon includes four second virtual quadrangles in an array and sharing adjacent sides; and the first sub-pixels and the third sub-pixels are at vertex angles or sides of the first virtual polygon and are alternately on the vertex angles or the sides of the first virtual polygon along a clockwise direction; the first virtual polygon has a first virtual point therein, lines connecting the first virtual point and virtual centers of the four third sub-pixels on the first virtual polygon divide the first virtual polygon into four virtual isosceles trapezoids.