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:
Jul. 24, 2001
Filed:
Jun. 19, 1997
Osamu Yamazaki, Chiba, JP;
Shunichi Motte, Chiba, JP;
Teruo Ebihara, Chiba, JP;
Shigeru Senbonmatsu, Chiba, JP;
Kaori Taniguchi, Chiba, JP;
Takakazu Fukuchi, Chiba, JP;
Hiroshi Sakama, Chiba, JP;
Masafumi Hoshino, Chiba, JP;
Naotoshi Shino, Chiba, JP;
Shuhei Yamamoto, Chiba, JP;
Seiko Instruments Inc., , JP;
Abstract
A reflection type liquid crystal display device according to the present invention is constructed to include: a light modulation layer having a light scattering state changed when a voltage is applied between electrode faces; at least one kind of color separation layer arranged at the back of the liquid crystal; and a reflection layer arranged at the back of the color separation layer. The light modulation layer is a polymer network type polymer scattered liquid crystal layer or a phase conversion type liquid crystal layer, and the color separation mirror is a cholesteric liquid crystal polymer layer or a dielectric multi-layered thin film characterized to reflect a light within a predetermined wavelength range in the visible light region selectively. A reflection preventing layer and an ultraviolet ray cut-off layer are further arranged on the surfaces of the electrode faces.