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:
Feb. 27, 2024

Filed:

Jan. 03, 2023
Applicant:

Sharp Display Technology Corporation, Kameyama, JP;

Inventors:

Koji Murata, Kameyama, JP;

Hiroshi Tsuchiya, Kameyama, JP;

Shinpei Higashida, Kameyama, JP;

Takahiro Sasaki, Kameyama, JP;

Takashi Satoh, Kameyama, JP;

Shinji Shimada, Kameyama, JP;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G02F 1/13 (2006.01); G02F 1/1335 (2006.01); G02F 1/1343 (2006.01); G02F 1/133 (2006.01); G02F 1/13357 (2006.01);
U.S. Cl.
CPC ...
G02F 1/1323 (2013.01); G02F 1/13306 (2013.01); G02F 1/133512 (2013.01); G02F 1/133514 (2013.01); G02F 1/134309 (2013.01); G02F 1/1336 (2013.01);
Abstract

The liquid crystal display device of the present invention includes an active matrix substrate including a first electrode, a first insulating layer, and second electrodes including a first linear electrode; a color filter substrate including a black matrix, a color filter layer, a third electrode including second linear electrodes, and a fourth electrode which is a floating electrode. The third electrode and the fourth electrode are disposed between the black matrix and the liquid crystal layer. The second linear electrodes extend in a second direction and each overlap a portion of the black matrix extending in the second direction. The fourth electrode is disposed between the second linear electrodes and overlaps the black matrix in a plan view. The control circuit switches between application of driving voltage and application of constant voltage to the third electrode.


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