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.:
Date of Patent:
Oct. 12, 2021
Filed:
Oct. 03, 2019
Applicant:
Toppan Printing Co., Ltd., Tokyo, JP;
Inventor:
Ryuichi Hirayama, Tokyo, JP;
Assignee:
TOPPAN PRINTING CO., LTD., Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G02F 1/133 (2006.01); E06B 9/24 (2006.01); G02F 1/1334 (2006.01);
U.S. Cl.
CPC ...
G02F 1/13306 (2013.01); E06B 9/24 (2013.01); G02F 1/1334 (2013.01); E06B 2009/247 (2013.01); E06B 2009/2464 (2013.01);
Abstract
There is provided a liquid crystal optical modulation device that performs light control drive of a liquid crystal panel, the device including an optical modulation control section that switches and sets a frequency of a drive voltage in the form of a rectangular wave applied to the liquid crystal panel in accordance with a range of the drive voltage.