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:
Oct. 11, 2000
Makoto Arai, Saitama, JP;
Citizen Watch Co., Ltd., Nishitokyo, JP;
Abstract
A liquid crystal layer ( ) composed of a super twisted nematic liquid crystal is sealed between a first substrate ( ) having first electrodes ( ) and a second substrate ( ) having second electrodes ( ), and a color filter is provided on any one of the first substrate ( ) and the second substrate ( ) to form an STN liquid crystal cell ( ), and a polarizing film ( ) is disposed outside the second substrate ( ), which is the visible side of the STN liquid crystal cell ( ), with a twisted retardation film ( ) interposed therebetween, and a diffusing layer ( ), a reflection-type polarizing film ( ) and a light absorbing layer ( ) are disposed in order outside the first substrate ( ), and the liquid crystal layer ( ) is aligned such that major axis directions of molecules located at the middle between the first and second substrates ( ) are parallel to the horizontal axis of a display screen.