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:
Oct. 25, 1988
Filed:
Jun. 19, 1987
Yoshinori Kato, Hyogo, JP;
Kiyoshi Shohara, Yokohama, JP;
Yoshihiro Kinoshita, Yamato, JP;
Shoichi Matsumoto, Yokohama, JP;
Kabushiki Kaisha Toshiba, , JP;
Abstract
In a liquid crystal device, liquid crystal molecules are twisted at a predetermined angle .theta. within the range of 180.degree. to 360.degree. between a pair of substances. Molecular alignment films are formed on the inner surfaces of the pair of substrates such that an angle .alpha. between the axes of the adjacent liquid crystal molecules falls within the range of 0.degree. to 40.degree.. A liquid crystal composition having a twist abilities falling within the range of .theta.-(2500/.theta.)+.sqroot..alpha. (degrees) to .theta.-(12500/.theta.)+.sqroot..alpha. (degrees) is filled between the substrates, thereby eliminating a memory phenomenon and alignment defects such as reverse twisting alignment defects and at the same time improving multiplexing drive characteristics.