Title:
配向フィルムの製造方法
Document Type and Number:
Japanese Patent JP3866771
Kind Code:
B2
Abstract:
A film of the present invention is an oriented film having a light-scattering property varying with an incident angle and is useful e.g. as a viewing angle improvement film effective for improving the picture quality of a liquid crystal display device, especially for expanding the viewing angle. This oriented film is composed of a thermoplastic polymer and contains a number of micro voids participating in the above scattering property in the film. It can be produced by uniaxially drawing a film composed of a thermoplastic polymer under temperature and draw-ratio conditions to form grooves on the surface of the film perpendicular to the drawing direction.
Inventors:
Akihiko Uchiyama
Yatabe Toshiaki
Yatabe Toshiaki
Application Number:
JP50781198A
Publication Date:
January 10, 2007
Filing Date:
August 04, 1997
Export Citation:
Assignee:
Teijin Limited
International Classes:
G02B5/02; B29C55/04; B29D7/01; B32B17/10; C08J9/00; G02F1/1335
Domestic Patent References:
| JPS5170272A | 1976-06-17 | |||
| JPH09281306A | 1997-10-31 | |||
| JP2000506991A | 2000-06-06 | |||
| JP2000502503A | 2000-02-29 | |||
| JPH07118039A | 1995-05-09 | |||
| JPH0682607A | 1994-03-25 | |||
| JPH04113835A | 1992-04-15 | |||
| JPH0885161A | 1996-04-02 | |||
| JPH07241917A | 1995-09-19 | |||
| JPH09197111A | 1997-07-31 | |||
| JPS50111174A | 1975-09-01 | |||
| JPS5385865A | 1978-07-28 | |||
| JPH10505378A | 1998-05-26 | |||
| JP2000503126A | 2000-03-14 | |||
| JPH11515036A | 1999-12-21 | |||
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Foreign References:
| WO1996021168A1 | 1996-07-11 |
Attorney, Agent or Firm:
Hideko Mihara