Title:
一体型偏光板およびその製造方法
Document Type and Number:
Japanese Patent JP4369423
Kind Code:
B2
Abstract:
The present invention relates to a unified polarizing plate, which employs, as a protection layer of a polarizing film, a transparent film comprising a cyclic olefin-based addition polymer. This layer can simultaneously function as a negative C-plate and transparent protection layer of a polarizing film and has negative refractive index toward thickness direction, thereby simultaneously performing functions as a negative C-plate for optical compensation and as a polarizing plate, and a method for preparing the same. The unified polarizing plate has superior durability at high temperature and high humidity compared to those employing TAC as a protection layer, and improves wide view angle of liquid crystal display having positive refractive index toward thickness direction, when the liquid crystal display device is ON or OFF.
Inventors:
Kim, Won-Guk
Chun, Sun-ho
Yoon, Seung-Chul
Im tae sun
Kim, Hong
Lee, Chun-Min
You, Chung-su
Fan, in-suk
Kim, Bomb-Suk
Chun, Sun-ho
Yoon, Seung-Chul
Im tae sun
Kim, Hong
Lee, Chun-Min
You, Chung-su
Fan, in-suk
Kim, Bomb-Suk
Application Number:
JP2005501715A
Publication Date:
November 18, 2009
Filing Date:
February 06, 2004
Export Citation:
Assignee:
LG HAUSYS,LTD.
International Classes:
G02B5/30; C08F4/70; C08F32/04; G02F1/1335; G02F1/13363
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Foreign References:
| WO2001048519A1 |
Attorney, Agent or Firm:
Sumio Tanai
Shinya Mitsuhiro
Shinya Mitsuhiro