The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Patent No.:

US 11828959 B1

Date of Patent:

Nov. 28, 2023

Filed:

Oct. 22, 2019

Grating structure, manufacturing method thereof and display device

Applicant:

Boe Technology Group Co., Ltd., Beijing, CN;

Inventors:

Wusheng Li, Beijing, CN;

Qi Yao, Beijing, CN;

Assignee:

BOE TECHNOLOGY GROUP CO., LTD., Beijing, CN;

Attorney:

BROOKS KUSHMAN P.C.

Primary Examiner:

Peter L Vajda

Assistant Examiner:

Jayson D Cosgrove

Int. Cl.

CPC ...

G02B 5/18 (2006.01); G02B 30/27 (2020.01); G03F 7/20 (2006.01); G03F 7/00 (2006.01); G03F 7/40 (2006.01);

U.S. Cl.

CPC ...

G02B 5/1857 (2013.01); G02B 30/27 (2020.01); G03F 7/0005 (2013.01); G03F 7/2051 (2013.01); G03F 7/40 (2013.01); G03F 7/70291 (2013.01);

Abstract

A grating structure, a manufacturing method thereof and a display device are provided. The method of manufacturing the grating structure includes: forming a photosensitive material layer on a substrate; patterning the photosensitive material layer to form a grating transition pattern, where the grating transition pattern includes multiple grating units, the multiple grating units each include a first portion and a second portion which are symmetric, and at least one of the first portion and the second portion includes multiple subunits to have a stepped structure; and curing the grating transition pattern to form the grating structure.

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