Lg Chem, Ltd

Jun-Won Chang

Belyaev Sergey

Malimonenko Nikolay

Moon-Soo Park

Sergey Belyaev

Eun-Kyung Kim

Byoung-Kun Jeon

Nikolay Malimonenko

Sang-Choll Han

Sin-young Kim

Soo-jin Jang

Soo-Jin Jang

A polarizer for use in an IPS-LCD includes: a polarizing element; and a retardation film laminate attached to a surface of the polarizing element. The retardation film laminate includes a combination of a +B film and a &#x2212;B film or a combination of a +B film and a +A film.

Polarising plate for a planar-switch mode LCD, and a planar-switch mode LCD comprising the same

There is provided an integrated wide viewing film including: a first film having an optical axis located in-plan; and a second film having an optical axis located in a thickness direction thereof, and inclined at a predetermined angle in an in-plane direction. The IPS-LCD employing the integrated wide viewing film can be significantly improved in a contrast ratio in a diagonal direction.

Integrated wide viewing film

In-plane switching liquid crystal display

Integrated wide viewing film and in-plane switching liquid crystal display with the same

The present invention relates to a retardation film having a homeotropic alignment liquid crystal film prepared from coating a liquid crystal mixed solution containing a polymerizable reactive liquid crystal monomer on an oriented retardation film so as to improve a viewing angle characteristic of an ISP mode liquid crystal display and reduce a color shift and a method for preparing the same. There is an advantage in that since a homeotropic alignment liquid crystal film with a retardation of a thickness direction is prepared using a liquid crystal mixed solution containing a reactive liquid crystal monomer, the retardation film according to the present invention is not required for high-temperature heat treatment and cooling processes so that it can be applied to a high-speed continuous process.

Retardation film having a homeotropic alignment liquid crystal film

A vertically aligned liquid crystal display (VA-LCD) according to one embodiment has liquid crystal cells in which liquid crystals with a negative dielectric anisotropy are filled and which is provided between a first polarizer and a second polarizer, whose absorption axes are perpendicular to each other. The VA-LCD includes a sheet of +A plate and a sheet of &#x2212;C plate, disposed between the first polarizer and the liquid crystal cells, and a sheet of +A plate disposed between the second polarizer and the liquid crystal cells, where an optical axis of the +A plate near the first polarizer is perpendicular to the absorption axis of the first polarizer, and an optical axis of the +A plate near the second polarizer is parallel with the absorption axis of the second polarizer, and where a thickness retardation value of the &#x2212;C plate is in the range of &#x2212;500 nm to &#x2212;30 nm for a wavelength of 550 nm.

Vertically aligned liquid crystal display

Growing community of inventors

Daejeon, South Korea

Jun-Won Chang