Title:
広幅偏光板およびその製法
Document Type and Number:
Japanese Patent JP4147266
Kind Code:
B1
Abstract:
The present invention provides a wide polarizer suitable for the 100 inch liquid crystal display panel and a manufacturing method thereof. A polyvinyl alcohol film uncoiled from a coil is done with an extension treatment extending along the coil width direction and contracting along the coiling direction, and a cellulose triacetate film is used to do laminate process on the two surfaces of the polyvinyl alcohol film after the extension treatment so as to manufacture the wide polarizer.
Inventors:
Nishi Sadazo
Application Number:
JP2007170736A
Publication Date:
September 10, 2008
Filing Date:
June 28, 2007
Export Citation:
Assignee:
Nishi Kogyo Co., Ltd.
International Classes:
G02B5/30; B29C55/08; B29C55/16; B29K29/00; B29L7/00; B29L9/00; B29L11/00
Domestic Patent References:
| JP2002350638A |
Attorney, Agent or Firm:
Gunichiro Ariga
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