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:
May. 05, 1992
Filed:
May. 31, 1990
Kimihiro Yuasa, Chiba, JP;
Kenji Hashimoto, Chiba, JP;
Idemitsu Kosan Co., Ltd., Tokyo, JP;
Abstract
A uniform orientation can be brought about to the liquid crystal material enclosed in a liquid crystal device by applying a shearing force to the liquid crystal material while an electric field is being applied to the liquid crystal material, without requiring disposition of orientation layers nor accurate control of temperature. The orientation method can be efficiently conducted by an apparatus comprising a supply roll for supplying and conveying the liquid crystal device, a roller having conductive orientation rolls for bending the conveyed liquid crystal device and for applying an electric field to the liquid crystal material, a power source for applying a voltage to the conductive orientation roll, and a receiving means for receiving the liquid crystal device which has gone through the bending.