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. 24, 2002
Filed:
Apr. 27, 1999
Toshirou Motomura, Kagoshima-ken, JP;
Kazuyuki Hisanaga, Kagoshima-ken, JP;
Hiromi Fukuoka, Kagoshima-ken, JP;
Kyocera Corporation, Kyoto, JP;
Abstract
In a liquid crystal display device ( ) according to the present invention, a retardation plate ( ) and a polarizer plate ( ) are stacked on one side of a liquid crystal panel ( ). A second retardation plate ( ) and a second polarizer plate ( ) are stacked on the other side of the liquid crystal panel ( ). The liquid crystal panel ( ) has a pair of transparent substrates, i.e., a first transparent substrate ( ) and a second transparent substrate ( ), and a nematic liquid crystal layer ( ) is interposed between the pair of transparent substrates. A semi-transmissive film ( ) is provided on an inner surface of the second transparent substrate ( ). The semi-transmissive film has both a light reflective property and a light transmissive property. When the liquid crystal display device ( ) is operative in the reflective mode, light passing through the liquid crystal layer ( ) is reflected on the semi-transmissive film ( ). On the other hand, when the liquid crystal display device ( ) is operative in the transmissive mode, internal illumination light passes through the transparent substrate ( ) and the semi-transmissive film ( ) into the liquid crystal layer ( ).