Dic Corporation

Sayaka Nose

Martin Schadt

Haruyoshi Takatsu

Isa Nishiyama

Yutaka Nagashima

Masayuki Iwakubo

Vladimir Grigorievich Chigrinov

Hiroshi Hasebe

Masanao Hayashi

Masahiro Horiguchi

Yoshio Aoki

Akihiro Koiso

Fumiaki Kodera

Hoi Sing Kwok

Hoi-Sing Kwok

Tetsuo Kusumoto

Kazunori Maruyama

Yasuhiro Kuwana

Kunihiko Kotani

Junichi Mamiya

Masanao Takashima

Kouichi Endo

Yoshitaka Saito

Shuuhei Yamamoto

Kazuki Obi

Tatsufumi Yamazaki

Hiroyuki Itou

Manabu Takachi

Kouzi Satou

Yuji Ohashi

Hoi Song Kwok

The present invention aims to provide a polymerizable compound that has high storage stability without causing crystal precipitation when added to a polymerizable composition and to provide a polymerizable composition containing the polymerizable compound. A polymer film produced by polymerization of the polymerizable composition has a low haze, high thickness uniformity, low occurrence of nonuniform orientation, high surface hardness, high adhesiveness, and good appearances and fewer orientation defects even after ultraviolet irradiation. The present invention also aims to provide a polymer produced by polymerization of the polymerizable composition and an optically anisotropic body produced from the polymer.

Polymerizable compound and optically anisotropic object

A compound and a polymer which can each form a photo-alignment film having excellent ability of controlling alignment, a photo-alignment film obtained using the polymer and an optically anisotropic body and a liquid crystal display element each having the photo-alignment film are provided. A compound represented by the general formula (1). In the formula, P represents a polymerizable group, Z and Zrepresent divalent linking groups, A and Arepresent divalent cyclic groups, and Xto Xeach independently represent a hydrogen atom, a fluorine atom, a chlorine atom, a hydroxy group, a nitro group, a cyano group or an alkyl group having 1 to 40 carbon atoms which may have a substituent, provided that X, X, Xand Xare not simultaneously hydrogen atoms. 

Compound, cured product, polymer, photo-alignment film, optically anisotropic body and liquid crystal display element

The problem that the present invention is to solve is to provide an optical film that has less alignment defects and is less liable to cause variation in the optical characteristics when placed in a high temperature state. The present invention provides an optical film containing a structural unit derived from a specific compound, that is, an optical film containing a structural unit derived from a compound represented by the general formula (I), which has less alignment defects and is less liable to cause variation in the optical characteristics when placed in a high temperature state, and also provides a display device including the optical film.

Optical isomer

It is an object of the present invention to provide a polymerizable compound having a good liquid crystal property, a good alignment property, sufficient solubility in solvents, high preservation stability in a solution state, and high optical stability; a composition including the polymerizable compound; a polymer produced by polymerizing the polymerizable compound, such as a resin produced using the polymerizable compound; an optically anisotropic body including the polymer; and a liquid crystal display element and an organic EL device that include the optically anisotropic body. As a result of conducting intensive studies in order to achieve the above object, the compound represented by General Formula (I) is developed.

Polymerizable compound, composition, polymer, optically anisotropic body, liquid crystal display element, and organic EL display

Provided are a compound represented by general formula (I), a liquid crystal composition that uses the compound, and a liquid crystal display device that uses the liquid crystal composition. Adding the compound represented by general formula (I) to a liquid crystal composition can prevent degradation of the liquid crystal composition by light, heat, etc. The compound represented by general formula (I) dissolves well in the liquid crystal composition. Thus, when the compound represented by general formula (I) is used, a liquid crystal composition having both low viscosity (&#x3b7;) and high reliability can be prepared, and a high-speed response liquid crystal display device can be provided.

Stabilizer compound, liquid crystal composition, and display device

Provided is a liquid crystal alignment layer of which a constituent member is a compound represented by the general formula (I). 

Cinnamic acid derivative, polymer thereof, and liquid crystal alignment layer comprising cured product thereof

[Object] To provide a liquid crystal alignment layer that can easily be formed, to which an anchoring force can be efficiently induced with less polarized light for exposure, and that is effective in controlling the orientation and pretilt angle of liquid crystal molecules, and a compound and polymer that can be used for such a liquid crystal alignment layer. [Solution] A compound is represented by general formula (I): where 

Compound, polymer, liquid crystal alignment layer, liquid crystal display device, and optically anisotropic material

Provided is a liquid crystal alignment layer of which a constituent member is a polymer represented by the general formula (I). 

Copolymer, and liquid crystal alignment layer including cured product thereof

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.

Polymer for use in liquid crystal alignment layer

Growing community of inventors

Kita-adachi-gun, Japan

Sayaka Nose