Dic Corporation

Dainippon Ink and Chemicals, Incorporated

Masayuki Iwakubo

Takashi Matsumoto

Masanao Hayashi

Yutaka Nagashima

Tetsuo Kusumoto

Yoshio Aoki

Sayaka Nose

Martin Schadt

Haruyoshi Takatsu

Shotaro Kawakami

Makoto Negishi

Isa Nishiyama

Masahiro Horiguchi

Yoshitaka Saito

Vladimir Grigorievich Chigrinov

Hoi-Sing Kwok

Manabu Takachi

Tetuo Kusumoto

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

An object of the invention is to provide a polymerizable compound having small refractive index anisotropy and having high storage stability and high alignment properties when constituting a polymerizable liquid crystal composition, and provide a polymerizable liquid crystal composition containing the polymerizable compound. Further, the object is to provide a polymer produced by polymerizing the polymerizable liquid crystal composition and an optically anisotropic body including the polymer. The present invention provides a polymerizable compound represented by general formula (I), a polymerizable liquid crystal composition containing the compound as a constituent component, and further provides a polymer produced by polymerizing the polymerizable liquid crystal composition and an optically anisotropic body including the polymer.

Polymerizable compound having lateral substituent in terminal ring structure

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 provides a liquid crystal composition having a negative dielectric anisotropy whose absolute value is large, and a low viscosity, and also provides a VA type liquid crystal element using the same. Disclosed is a liquid crystal composition containing a compound represented by the general formula (I) and an alkenyl compound represented by the general formula (II): By combining the liquid compounds according to the present invention, a liquid crystal composition having a low viscosity and a negative dielectric anisotropy could be obtained while nearly maintaining physical properties such as refractive anisotropy. By using the composition, a liquid crystal element having excellent reliability, capable of maintaining a high voltage retention until a high temperature region, is provided, and the display is very applicable as a VA type, ECB type, or IPS type liquid crystal display, and is particularly effective for speeding up response without thinning cell gaps.

Nematic liquid crystal composition and liquid crystal display device using the same

A nematic liquid crystal composition of the present invention includes 10 to 80% by mass of either one or at least two compounds represented by general formula (I) as a first component; and 20 to 70% by mass of either one or at least two compounds represented by general formula (II) as a second component, wherein a dielectric constant anisotropy is negative. The use of this nematic liquid crystal composition can provide a highly reliable liquid crystal display element capable of maintaining a high voltage-holding ratio even in a high temperature region, and achieving quick responsiveness without reducing the cell gap.

Difluorobenzene derivative and nematic liquid crystal composition using the same

Growing community of inventors

Kita-adachi-gun, Japan

Masayuki Iwakubo