Lg Chem, Ltd

Mi Ra Hong

Sung-Ho Chun

Dai Seung Choi

Kyung Chang Seo

Hyeong Bin Jang

Dong Woo Yoo

Jung Hyun Kim

Min Hyung Lee

Eun Seok Park

Byoung Hyoun Kim

Dong-Woo Yoo

Su Youn Han

Sung Ho Chun

Young Hee Lim

Yeu Young Youn

Hye Sung Cho

Jeong Wook Mun

Yeon Hwa Lee

A pretreatment method for analyzing dioxin compounds and an analytical method using the same, in which a column packed with polymer beads that are capable of selectively adsorbing dioxin compounds is used in a purification step during pretreatment, thereby remarkably reducing a time required for pretreatment and improving a recovery rate of an internal standard for purification, are provided.

Pretreatment method for analyzing dioxin compounds and analytical method using the same

Disclosed therein are an optical film and a display device comprising the same, where the optical film comprises a first optically anisotropic layer including a liquid crystal compound and a second optically anisotropic layer including a photoreactive polymer, thereby securing improved photoreaction rate and excellent liquid crystal alignment.

Optical film and display device comprising the same

The present invention relates to a reverse wavelength dispersion compound, a reverse wavelength dispersion composition including the same, and an optically anisotropic body including the same. The reverse wavelength dispersion composition according to the present invention can provide a stronger and more stable reverse wavelength dispersion property, and makes it possible to provide an optically anisotropic body having excellent optical properties.

Compounds having negative optical dispersion, negative optical dispersion composition comprising the compounds, and optically anisotropic body comprising the composition

This invention relates to a photo-alignment copolymer which enables the formation of an optical anisotropic film that exhibits superior optical anisotropy, an optical anisotropic film using the photo-alignment copolymer and a method of manufacturing the optical anisotropic film. The photo-alignment copolymer includes both of a photo-alignment repeating unit having a photo-reactive functional group such as a cinnamate-based functional group, a chalcone-based functional group, an azo-based functional group or a coumarin-based functional group, and a repeating unit having a specific structure able to increase optical anisotropy.

Photo-alignment copolymer, optical anistropic film and its preparation method

The present description relates to a polymerizable liquid crystal compound, a polymerizable liquid crystal composition including the same, and an optically anisotropic body. The polymerizable liquid crystal compound includes a radical derived from the first liquid crystal molecule including a mesogen group having a non-aromatic ring; a radical derived from the second liquid crystal molecule including a mesogen group that has a structure different from said mesogen group having a non-aromatic ring and includes a ring containing a double bond; and a linker that has a specific structure and links the sp3-hybridized carbon in the non-aromatic ring of the radical derived from the first liquid crystal molecule and the sp2-hybridized carbon in the mesogen group of the radical derived from the second liquid crystal molecule, wherein at least one of the radicals derived from the first and the second liquid crystal molecules may include one or more polymerizable groups which are connected to the mesogen group directly or via spacer groups. Such polymerizable liquid crystal compound makes it possible to exhibit stable reverse wavelength dispersion solely or by being mixed with other liquid crystal materials.

Polymerizable liquid crystal compound, polymerizable liquid crystal composition, and optical anisotropic body

Polymerizable liquid crystal compound, polymerizable liquid crystal composition, and optically anisotropic body

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Daejeon, South Korea

Mi Ra Hong