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:
Nov. 20, 2018

Filed:

Sep. 28, 2017
Applicant:

Japan Display Inc., Tokyo, JP;

Inventors:

Takeshi Sakai, Tokyo, JP;

Toshimasa Ishigaki, Tokyo, JP;

Satoru Kawasaki, Tokyo, JP;

Assignee:

Japan Display Inc., Tokyo, JP;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G02F 1/1343 (2006.01); G02F 1/1339 (2006.01); G02F 1/1337 (2006.01); G02F 1/1368 (2006.01); G02F 1/1335 (2006.01);
U.S. Cl.
CPC ...
G02F 1/134363 (2013.01); G02F 1/13394 (2013.01); G02F 1/133707 (2013.01); G02F 1/133512 (2013.01); G02F 2001/13685 (2013.01); G02F 2201/123 (2013.01);
Abstract

In an IPS mode liquid crystal display device, an interlayer insulating film is formed on a common electrode formed in a planar shape, and a pixel electrode is formed on the interlayer insulating film. The distance between the TFT substrate and the counter substrate is determined by a columnar spaces. The pixel electrode includes one comb-shaped electrode and a contact part. The tip of the comb-shaped, electrode overlaps the columnar spacer as seen in a plan view. The columnar spacer is present in, the area in which an electric field that allows the liquid crystal molecules to rotate backward occurs when a voltage is applied to the pixel electrode, so that the reverse rotation of the liquid crystal molecules does not occur, and it is possible to prevent the domain from occurring.


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