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. 21, 2004
Filed:
Mar. 25, 2002
Akihito Hisamitsu, Mishima-gun, JP;
Noboru Ueda, Hachioji, JP;
Nobuyuki Kobayashi, Kobe, JP;
Hideaki Ueda, Kishiwada, JP;
Minolta Co., Ltd., Osaka, JP;
Abstract
A liquid crystal display apparatus includes a first liquid crystal layer having first liquid crystal exhibiting a cholesteric phase at a room temperature, and being tuned to selectively reflect light of a wavelength &lgr; within a visible wavelength range; and a second liquid crystal layer disposed on the first liquid crystal layer, having second liquid crystal exhibiting a cholesteric phase at the room temperature, and being tuned to selectively reflect light of a wavelength &lgr; within the visible wavelength range, wherein a difference between the selective reflection wavelengths &lgr; and &lgr; is in a range from 100 nm to 150 nm.