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:
Dec. 31, 2013
Filed:
Jul. 06, 2010
Applicants:
Akira Sakai, Osaka, JP;
Kazuyoshi Sakuragi, Osaka, JP;
Masahiro Hasegawa, Osaka, JP;
Inventors:
Assignee:
Sharp Kabushiki Kaisha, Osaka, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G02F 1/1335 (2006.01);
U.S. Cl.
CPC ...
Abstract
A three-dimensional video recognition system comprises a display device, a front plate, and AS glasses. Each of the AS glasses includes a first λ/4 plate, a first linear polarizing element, a liquid crystal cell, and a second linear polarizing element in this order from the outer surface side. The display device includes a third linear polarizing element on an observation surface side of the display device. The front plate has a second λ/4 plate. Specific angles formed between a transmission axis of polarizing elements and λ/4 plates are provided.