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:
Sep. 11, 2007
Filed:
Dec. 23, 2005
Mitsuo Oizumi, Fukushima-ken, JP;
Mitsuo Oizumi, Fukushima-ken, JP;
Alps Electric Co., Ltd., Tokyo, JP;
Abstract
A liquid crystal display device includes a liquid crystal cell having a pair of transparent substrates opposite to each other and a liquid crystal layer provided between the pair of substrates; first and second retardation plates and a first polarizing plate that are sequentially formed on an outer surface of one of the pair of substrates; and third and fourth retardation plates and a second polarizing plate that are sequentially formed on an outer surface of the other substrate of the pair of substrates. Optical characteristics of the liquid crystal cell, the first to fourth retardation plates, and the first and second polarizing plates are set in predetermined ranges.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile