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:
Feb. 17, 2004
Filed:
Feb. 06, 2001
Yasushi Kaneko, Sayama, JP;
Makoto Arai, Tokorozawa, JP;
Citizen Watch Co., Ltd., Nishitokyo, JP;
Abstract
A reflective liquid crystal display device, employing a single polarizing film comprises a liquid crystal element ( ) comprised of a twist aligned nematic liquid crystal layer ( ) sandwiched between a first substrate ( ) thereof, provided with a reflector ( ) and first electrodes ( ) and a second substrate ( ) thereof, provided with second electrodes ( ), a twisted retardation film ( ) deposited on the outer side (the visible side) of the second substrate ( ) of the liquid crystal element ( ), further a retardation film ( ), and a polarizing film ( ) which are sequentially deposited in that order on the outer side of the retardation film ( ). As a result, reflective display bright and in high contrast can be effected.