Title:
位相差フィルム、その製造方法及び位相差フィルムを含む偏光板
Document Type and Number:
Japanese Patent JP2010507831
Kind Code:
A
Abstract:
There is provided a retardation film capable of adjusting an angle between a proceeding direction of a film and an optical axis of liquid crystal by employing an alignment layer formed of polymers including norbornene and improving thermal stability and photoreaction rate, a method for preparing the retardation film and a polarizer comprising the retardation film. The retardation film includes a substrate, an alignment layer formed on the substrate and made of polymers including norbornene, and an alignment layer fixing layer formed on the alignment layer and made of liquid crystal materials; the method for preparing a retardation film includes: forming a polymer layer by coating a substrate with a polymer solution including norbornene and drying the polymer solution, forming an alignment layer by irradiating the copolymer layer with linearly polarized ultraviolet rays in a predetermined direction relative to a proceeding direction of a film to give an orientation to the copolymer layer, forming a liquid crystal layer on the alignment layer by coating the alignment layer with a nematic liquid crystal solution and drying the nematic liquid crystal solution, and fixing the orientation of the liquid crystal layer by curing the liquid crystal layer; and the polarizer includes the retardation film and a polarizer film, both of which are stacked with each other. The retardation film has improved thermal stability and light reaction speed, and the retardation film whose optical axis has a desired orientation angle relative to a proceeding direction of the retardation film may be easily prepared through the irradiation of polarized ultraviolet rays.
Inventors:
Kim, Shin Young
Kim, Yun Kyun
Park, Moon Sue
Cho, Young Il
Jeong, Song Ho
Lee, Jean
Kim, Hyun
Kim, Yun Kyun
Park, Moon Sue
Cho, Young Il
Jeong, Song Ho
Lee, Jean
Kim, Hyun
Application Number:
JP2009534514A
Publication Date:
March 11, 2010
Filing Date:
April 23, 2008
Export Citation:
Assignee:
LG HAUSYS,LTD.
International Classes:
G02B5/30; C08F8/10; C08F32/00; C08G61/08; G02F1/13363; G02F1/1337
Domestic Patent References:
| JPH10251513A | 1998-09-22 | |||
| JP2000256462A | 2000-09-19 | |||
| JP2001200018A | 2001-07-24 | |||
| JP2002069180A | 2002-03-08 | |||
| JP2008527103A | 2008-07-24 | |||
| JP2009512904A | 2009-03-26 | |||
| JP2009532736A | 2009-09-10 | |||
| JP2008503790A | 2008-02-07 | |||
| JP2006209097A | 2006-08-10 |
Foreign References:
| WO2006078129A1 | 2006-07-27 |
Attorney, Agent or Firm:
Longhua International Patent Service Corporation