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:
Jan. 05, 1999
Filed:
Jul. 02, 1997
Applicant:
Inventors:
Yasuhisa Itoh, Tenri, JP;
Naofumi Kimura, Nabari, JP;
Assignee:
Sharp Kabushiki Kaisha, Osaka, JP;
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C09K / ;
U.S. Cl.
CPC ...
349165 ; 349179 ;
Abstract
A reflective liquid crystal display device includes a pair of substrates and a liquid crystal layer interposed therebetween. The liquid crystal layer includes a liquid crystal material and a dichroic dye contained therein, and long axis of liquid crystal molecules near the substrate is substantially parallel to the substrate. A plurality of parameters of the reflective liquid crystal display device are set so that a product K.sub.M cd of a value K.sub.M, a dye concentration c and a thickness d of the liquid crystal layer satisfies the following relationship: