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:
Dec. 03, 1991
Filed:
Jul. 27, 1989
Shunpei Yamazaki, Tokyo, JP;
Toshimitsu Konuma, Atsugi, JP;
Toshiji Hamatani, Atsugi, JP;
Akira Mase, Atsugi, JP;
Toshiharu Yamaguchi, Zama, JP;
Mitsunori Sakama, Hiratsuka, JP;
Takashi Inujima, Atsugi, JP;
Semiconductor Energy Laboratory Co., Ltd., Kanagawa, JP;
Abstract
A liquid crystal device including a unipolar driving source; a pair of substrates, at least one of which is transparent; a chiral smectic liquid crystal layer interposed between the substrates; and an electrode arrangement provided in order to apply an electric field normal to the liquid crystal layer, wherein the opposed inner surfaces of the substrates contiguous to the chiral smectic liquid crystal layer are formed of different materials having different surface energies such that upon application of the unipolar voltage to the chiral smectic liquid crystal, the chiral smectic liquid crystal molecules will be placed in a first state and upon removal of the unipolar voltage, the liquid crystal molecules will be returned to a second state.