Title:
LIGHT CONTROL DEVICE AND ITS MANUFACTURING METHOD
Document Type and Number:
WIPO Patent Application WO/2004/005426
Kind Code:
A1
Abstract:
A light control device in which when no voltage is applied, the light transmittance is small and the scattering is low, and when a voltage is applied, the light transmittance is large and the scattering is low. The light control device comprises a liquid crystal/polymer composite material containing a dichroic dye, a liquid crystal, and a polymer. When no voltage is applied, the light transmittance is 40% or less, and the scattering transmittance is 30% or less. When a voltage is applied, the light transmittance is 45% or more, and the scattering transmittance is 20% or less.
Inventors:
SHIBUYA TAKASHI (JP)
NAGASHIMA MASAKO (JP)
IKEDA YASUHIRO (JP)
NAGASHIMA MASAKO (JP)
IKEDA YASUHIRO (JP)
Application Number:
PCT/JP2003/008532
Publication Date:
January 15, 2004
Filing Date:
July 04, 2003
Export Citation:
Assignee:
ASAHI GLASS CO LTD (JP)
SHIBUYA TAKASHI (JP)
NAGASHIMA MASAKO (JP)
IKEDA YASUHIRO (JP)
SHIBUYA TAKASHI (JP)
NAGASHIMA MASAKO (JP)
IKEDA YASUHIRO (JP)
International Classes:
C09K19/12; C09K19/20; C09K19/38; C09K19/60; G02F1/1334; G02F1/137; (IPC1-7): C09K19/02; C09K19/54; C09K19/60; G02F1/137
Foreign References:
| US5301046A | 1994-04-05 | |||
| US5525273A | 1996-06-11 | |||
| JPH0580311A | 1993-04-02 | |||
| US5206747A | 1993-04-27 | |||
| EP1154006A1 | 2001-11-14 | |||
| JPH07110469A | 1995-04-25 | |||
| US5726728A | 1998-03-10 |
Attorney, Agent or Firm:
Senmyo, Kenji (38 Kanda-Higashimatsushitach, Chiyoda-ku Tokyo, JP)
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