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. 11, 2001
Filed:
Jun. 17, 1998
Hitoshi Fukushima, Suwa, JP;
Kanemitsu Kubota, Suwa, JP;
Seiko Epson Corporation, Tokyo, JP;
Abstract
A liquid crystal display device wherein the drive voltage is comparatively low, and the optical scattering performance, optical transmissivity and contrast ratio are higher than in the conventional reflective liquid crystal display device. In a liquid crystal display device (,) constituted by sandwiching a liquid crystal layer (,) between a pair of substrates (,), there are provided a perpendicular alignment film (,) including a monomolecular film formed by molecules of a sulphur compound of straight chain structure on the face of at least one substrate (,) of the substrates on the side of the liquid crystal layer and a horizontal alignment film (,) formed by molecules of sulphur compound of different straight chain structure or a fluorine derivative of cysteine etc. An alignment control film different from conventionally can be provided.