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:
Apr. 28, 1992
Filed:
Jan. 28, 1991
Masahiko Sato, Atsugi, JP;
Toshiji Hamatani, Atsugi, JP;
Toshimitsu Hagiwara, Yokohama, JP;
Hitoshi Kondou, Inagi, JP;
Semiconductor Energy Laboratory Co., Ltd., Kanagawa, JP;
Abstract
A new type of non-volatile bistable liquid crystal device is disclosed. The device has substrates spaced apart by such a distance that the molecular arrangement of the liquid crystal moaterial is helical and is arranged such that the liquid crystal molecules can selectively take up either of two optically anisotropic stable conditions in dependence puon an applied electric field. The transition between the two stable conditions takes place via an intermediate conditon in which the liquid crystal molecules are reearranged in helical form and represent an optically isotropic condition.