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.

Date of Patent:
May. 05, 2020

Filed:

Jul. 17, 2017
Applicants:

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

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

Inventors:

Zhe Wang, Beijing, CN;

Yuanchao Zhu, Beijing, CN;

Guoyu Qiao, Beijing, CN;

Fei Ma, Beijing, CN;

Chen Qi, Beijing, CN;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01B 11/00 (2006.01); G03F 9/00 (2006.01); G01N 21/956 (2006.01); G01N 21/958 (2006.01);
U.S. Cl.
CPC ...
G03F 9/7019 (2013.01); G01N 21/956 (2013.01); G01N 21/958 (2013.01); G03F 9/7015 (2013.01);
Abstract

An angle adjustment tool, an angle adjustment system for a liquid crystal panel and a corresponding line defect analysis method are disclosed. The angle adjustment tool includes: a base; a first toothed member and a second toothed member; a rotating scale; and an angle indicator. The first toothed member includes a first toothed portion. A first end of the second toothed member has a second toothed portion and engages with the first toothed portion of the first toothed member, and a second end of the second toothed member is connected to the rotating scale; the second toothed member is pivotable about a central pivot axis of the second toothed portion. A pitch circle diameter of the second toothed portion is n times a pitch circle diameter of the first toothed portion, where n is a positive integer greater than or equal to 2.


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