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. 17, 2016
Filed:
Mar. 29, 2011
Sayaka Nose, Kitaadachi-gun, JP;
Yutaka Nagashima, Kitaadachi-gun, JP;
Isa Nishiyama, Kitaadachi-gun, JP;
Haruyoshi Takatsu, Kitaadachi-gun, JP;
Martin Schadt, Seltisberg, CH;
Vladimir Chigrinov, Hong Kong, CN;
Hoi Sing Kwok, Hong Kong, CN;
Sayaka Nose, Kitaadachi-gun, JP;
Yutaka Nagashima, Kitaadachi-gun, JP;
Isa Nishiyama, Kitaadachi-gun, JP;
Haruyoshi Takatsu, Kitaadachi-gun, JP;
Martin Schadt, Seltisberg, CH;
Vladimir Chigrinov, Hong Kong, CN;
Hoi Sing Kwok, Hong Kong, CN;
DIC CORPORATION, Tokyo, JP;
Abstract
The present invention relates to materials used for aligning liquid crystals of liquid crystal display elements and to a polymer for use in liquid crystal vertical alignment layer used in producing a liquid crystal vertical alignment layer. The polymer for use in a liquid crystal vertical alignment layer includes (a) a moiety that is photochemically isomerizable but not photochemically crosslinked, (b) a moiety that is photochemically crosslinkable, and (c) a moiety that stabilizes a vertical alignment. The polymer can be used to produce a vertical alignment layer that has a liquid crystal alignment property enabling control of alignment at a low UV dose and that offers a large pretilt angle and superior optical stability.