Title:
BROAD-BAND-CHOLESTERIC LIQUID-CRYSTAL FILM AND PROCESS FOR PRODUCING THE SAME, CIRCULARLY POLARIZING PLATE, LINEARLY POLARIZING ELEMENT, ILLUMINATOR, AND LIQUID-CRYSTAL DISPLAY
Document Type and Number:
WIPO Patent Application WO/2004/063780
Kind Code:
A1
Abstract:
A broad-band-cholesteric liquid-crystal film which is obtained by applying a liquid-crystal mixture comprising a polymerizable mesogenic compound (a), a polymerizable chiral reagent (b), and a photopolymerization initiator (c) to an alignment substrate and polymerizing the coating with ultraviolet in an inert gas atmosphere, and which has a reflection band width of 200 nm or more. The broad-band-cholesteric liquid-crystal film has a broad reflection band and satisfactory durability.
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Inventors:
SHIRAOGAWA MIKI (JP)
FUKUOKA TAKAHIRO (JP)
TAKAHASHI NAOKI (JP)
HARA KAZUTAKA (JP)
FUKUOKA TAKAHIRO (JP)
TAKAHASHI NAOKI (JP)
HARA KAZUTAKA (JP)
Application Number:
PCT/JP2004/000068
Publication Date:
July 29, 2004
Filing Date:
January 08, 2004
Export Citation:
Assignee:
NITTO DENKO CORP (JP)
SHIRAOGAWA MIKI (JP)
FUKUOKA TAKAHIRO (JP)
TAKAHASHI NAOKI (JP)
HARA KAZUTAKA (JP)
SHIRAOGAWA MIKI (JP)
FUKUOKA TAKAHIRO (JP)
TAKAHASHI NAOKI (JP)
HARA KAZUTAKA (JP)
International Classes:
G02B5/30; G02F1/13357; (IPC1-7): G02B5/30; G02F1/1335
Foreign References:
| US5506704A | 1996-04-09 | |||
| JP2002308832A | 2002-10-23 | |||
| JP2003262732A | 2003-09-19 | |||
| US5691789A | 1997-11-25 | |||
| US6099758A | 2000-08-08 |
Attorney, Agent or Firm:
Suzuki, Takao (Nishinakajima 7-chome Yodogawa-k, Osaka-shi Osaka 11, JP)
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