Laminate polarizing plate, a method of producing the same and a liquid crystal display

Number of patents in Portfolio can not be more than 2000

United States of America Patent

PATENT NO 7522238
APP PUB NO 20050243252A1
SERIAL NO

11113296

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Abstract

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The object of the present invention is to provide a laminate polarizing plate of which application to liquid crystal displays is able to simplify constitutions and production procedures of the displays, and to reduce cost thereof; and to provide an industrially advantageous method of producing the compound polarizing plate, and a liquid crystal display using the same. The object is achieved by a laminate polarizing plate comprising a polarizing film, an adhesive layer and a phase retarder film which being laminated in this order, wherein said phase retarder film comprises at least one coating layer having refractive index anisotropy of which an in-plane retardation value (R.sub.0) is 0 to 10 nm and a retardation value in the thickness direction (R') is 40 to 300 nm, wherein said coating layer is formed on a transfer substrate, followed by being transferred on a surface of the adhesive layer of the polarizing film.

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Patent Owner(s)

  • SUMITOMO CHEMICAL COMPANY, LIMITED

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Matsuoka, Yoshiki Niihama, JP 25 237

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