Lg Chem, Ltd

Lg Chem-Investment Ltd.

Lg Chemical Ltd.

Lg Chemical Co., Ltd.

Min-Jin Ko

Myung-Sun Moon

Bum-Gyu Choi

Jung-Won Kang

Dae-Ho Kang

Dong-Seok Shin

Ki-Youl Lee

Yun-Bong Kim

Hye-Yeong Nam

Jae-Ho Cheong

Gwi-Gwon Kang

Young-Duk Kim

Byung-Ro Kim

Seung-Beom Cho

Won-Jong Kwon

Myoung-hwan Oh

Jun-seok Nho

Dong-Mok Shin

Sang-Min Park

Hae-Young Nam

Jong-Pil Kim

Jang-Yul Kim

Jeong-Man Son

Jang Yul Kim

Eun-Mi Choi

Sang-chul Lee

Min-kyoun Kim

Byung-ro Ko

Hye-yeong Nam

Jun-Seok Nho

Hye-Yeong Lg Chem Ltd Nam

Youn-Bong Kim

The present invention relates to a novel gelling agent comprising of a silane-amide chemical structure, a liquid crystal gel comprising the same and a liquid crystal device comprising said liquid crystal gel. The liquid crystal gel comprised of the novel gelling agent has excellent compatibility with other materials, and has excellent stability and solubility during manufacturing process of the same, and thus it can be applied to the production of a highly adaptable liquid crystal device.

Gelling agent, a liquid crystal gel comprising the same, and a liquid crystal device comprising the liquid crystal gel

The present invention relates to a radial-shaped liquid crystal compound, and an optical film and a liquid crystal display device comprising the same. Particularly the present invention provides a compound represented by Chemical Formula 1 comprising a radial-shaped core of tetraphenyl ethylene in which four phenyl groups are bonded to an ethylene group, and makes it possible to provide an optical film which can minimize the change of color according to viewing angle and has an improved contrast ratio and high refractive anisotropy, and a liquid crystal display device comprising the same, by using the compound.

Radial-shaped liquid crystal compound, and optical film and liquid crystal display device comprising the same

The present invention relates to a method of preparing a cerium oxide powder for a CMP slurry and a method of preparing a CMP slurry using the same, and more particularly, to a method of preparing a cerium oxide powder for a CMP slurry and a method of preparing a CMP slurry using the same in which the specific surface area of the powder is increased by preparing a cerium precursor, and then decomposing and calcinating the prepared cerium precursor. The pore distribution is controlled to increase the chemical contact area between a polished film and a polishing material, thereby reducing polishing time while the physical strength of powder is decreased, which remarkably reduces scratches on a polished film.

Method for preparing of cerium oxide powder for chemical mechanical polishing and method for preparing of chemical mechanical polishing slurry using the same

Disclosed is a novel liquid crystal compound, a liquid crystal composition comprising the same, and an optical film using the same liquid crystal composition. More particularly, there is provided a liquid crystal material of a viewing angle compensation film with high quality characteristics, which can improve a contrast ratio and minimize variations in color with viewing angles in a black state, a liquid crystal composition comprising the same liquid crystal material, and a compensation film obtained from the same liquid crystal composition.

Liquid crystal compound, liquid crystal composition comprising the same, and optical film using the same liquid crystal composition

Disclosed are a biaxial liquid crystal compound, a liquid crystal composition comprising the same, and an optical film using the same liquid crystal composition. More particularly, there is provided a liquid crystal material of a viewing angle compensation film with high quality characteristics, which can improve a contrast ratio and minimize variations in color with viewing angles in a black state, a liquid crystal composition comprising the same liquid crystal material, and a compensation film obtained from the same liquid crystal composition.

Biaxial liquid crystal compound, liquid crystal composition comprising the same, and optical film using the same liquid crystal composition

Disclosed is a discotic liquid crystal compound, a liquid crystal composition comprising the same, and an optical film using the same liquid crystal composition. More particularly, there is provided a liquid crystal material of a viewing angle compensation film with high quality characteristics, which can improve a contrast ratio and minimize variations in color with viewing angles in a black state, a liquid crystal composition comprising the same liquid crystal material, and a compensation film obtained from the same liquid crystal composition.

Discotic liquid crystal compound, liquid crystal composition comprising the same and optical film using the same liquid crystal composition

Disclosed are a novel fluorene derivative, a liquid crystal composition comprising the same, and an optical film using the same liquid crystal composition. More particularly, there are provided a liquid crystal material for a viewing angle compensation film with high quality characteristics, which can improve a contrast ratio measured at an oblique angle to the front and minimize variations in color with viewing angles in a black state, a liquid crystal composition comprising the same liquid crystal material, and a compensation film obtained from the same liquid crystal composition.

Fluorene derivative, liquid crystal composition comprising the same, and optical film using the same liquid crystal composition

The present invention relates to a pyran derivative which manifests appropriate refractive anisotropy (optical anisotropy) and liquid crystal transition temperature and excellent dielectric anisotropy, and has excellent compatibility with various liquid crystal compounds, and thus, can be preferably used for the formation of a liquid crystal layer of a liquid crystal display device, its preparation method, a liquid crystal composition and liquid crystal display device comprising the same.

Pyran derivative, its preparation method, liquid crystal composition and liquid crystal display device comprising the same

Disclosed are a novel liquid crystal compound containing a sulfone group, a liquid crystal composition comprising the same, and an optical film using the same liquid crystal composition. More particularly, there are provided a liquid crystal material for a viewing angle compensation film with high quality characteristics, which can improve a contrast ratio measured at a tilt angle to the front and minimize variations in color with viewing angles in a black state, a liquid crystal composition comprising the same liquid crystal material, and a compensation film obtained from the same liquid crystal composition.

Liquid crystal compound containing sulfone group, liquid crystal composition comprising the same, and optical film using the same liquid crystal composition

The present invention relates to an organic silicate polymer prepared by mixing silane compound with organic solvent to prepare a first mixture, and hydrolyzing and condensing the first mixture by adding water and catalyst, the first mixture being selected from a group consisting of oxidized hydrosilane, cyclic siloxane, a second mixture of oxidized hydrosilane and silane or silane oligomer, and a third mixture of cyclic siloxane and silane or silane oligomer, a composition for forming an insulation film of semiconductor devices prepared by using the organic silicate polymer, a method for preparing an insulation film using the composition, and a semiconductor device comprising the insulation film.

Organic silicate polymer and insulation film comprising the same

A cobalt-based alloy electroless plating solution according to the present invention comprises a cobalt precursor, a tungsten precursor, a phosphorus precursor, a reducing agent, a complexing agent, a pH regulator and a stabilizer, in which the reducing agent is dimethylamine borane (DMAB) or borohydride and the stabilizer is one or more compounds selected from a group consisting of imidazole, thiazole, triazole, disulfide and their derivatives; and which is stable enough for long-term reuse and prevents deterioration of metal thin-film quality by inhibiting the formation of a precipitate.

Cobalt-based alloy electroless plating solution and electroless plating method using the same

The present invention relates to organic siloxane resins and insulating films using the same. The insulating films are manufactured by using organic siloxane resins, wherein organic siloxane resins are hydrolysis-condensation polymers of silane compounds comprising one or more kinds of hydrosilane compounds. They have superior mechanical properties and a low electric property, and therefore, are properly usable for highly integrated semiconductor devices.

Organic siloxane resins and insulating film using the same

The present invention relates to a coating composition for a film with low refractive index and a film prepared therefrom, and more precisely, a coating composition with low refractive index which contains dispersed porous organic/inorganic hybrid nano-particles or a colloid containing the dispersed nano-particles, a photocurable compound having unsaturated functional groups, photoinitiator or photosensitizer, or an organic siloxane thermosetting compound, and a solvent and a film prepared therefrom. According to the present invention, porous particles have been formed by using a structural regulator in a silane compound at a specific size, in order to be fitted for a film with low refractive index, and then the structural regulator has been eliminated by a simple process before forming the film, resulting in preparation of a film with extremely low refractive index at a low temperature of up to 120&#xb0; C. which will be applied as a film with low refractive index or a film with low reflection for various uses including displays.

Coating composition for film with low refractive index and film prepared therefrom

The present invention relates to a coating composition for insulating film production, a preparation method of a low dielectric insulating film using the same, a low dielectric insulating film for a semiconductor device prepared therefrom, and a semiconductor device comprising the same, and more particularly to a coating composition for insulating film production having a low dielectric constant and that is capable of producing an insulating film with superior mechanical strength (elasticity), a preparation method of a low dielectric insulating film using the same, a low dielectric insulating film for a semiconductor device prepared therefrom, and a semiconductor device comprising the same. The coating composition of the present invention comprises an organic siloxane resin having a small molecular weight, and water, and significantly improves low dielectricity and mechanical strength of an insulating film.

Coating composition for insulating film production, preparation method of insulation film by using the same, insulation film for semi-conductor device prepared therefrom, and semi-conductor device comprising the same

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Daejeon, South Korea

Min-Jin Ko