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:
Jan. 07, 1992
Filed:
Mar. 27, 1989
Nobuyuki Sekimura, Kawasaki, JP;
Akio Yoshida, Fujisawa, JP;
Masaki Kuribayashi, Higashi-kurume, JP;
Masaru Kamio, Atsugi, JP;
Hideaki Takao, Sagamihara, JP;
Tatsuo Murata, Atsugi, JP;
Canon Kabushiki Kaisha, Tokyo, JP;
Abstract
A liquid crystal device comprises a pair of substrates and a ferroelectric liquid crystal disposed between the substrates. At least one of the substrates has thereon a color filter layer and a protection layer for preventing direct contact between the color filter and the ferroelectric liquid crystal. Particulate spacers are preferably disposed between the substrates. The protection layer preferably comprises a film having a pencil hardness of HB or harder (JIS K 5401).
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile