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Title:
LIQUID CRYSTAL DISPLAY ELEMENT
Document Type and Number:
WIPO Patent Application WO/2006/123749
Kind Code:
A1
Abstract:
A liquid crystal display element which uses mono-stable ferroelectric liquid crystal and can control the orientation of spontaneous polarization of ferroelectric liquid crystal. The liquid crystal display element comprises a first orientation processing substrate having a first substrate, a first electrode layer formed on the first substrate and a first orientation film formed on the first electrode layer, and a second orientation processing substrate having a second substrate, a second electrode layer formed on the second substrate, a second orientation film formed on the second electrode layer and a reactive liquid crystal layer formed on the second orientation film and made by solidifying reactive liquid crystal, the first and the second processing substrates being disposed with the first orientation film and the reactive liquid crystal layer facing each other, the first orientation film and the reactive liquid crystal layer holding ferroelectric liquid crystal between them, characterized in that the ferroelectric liquid crystal exhibits a mono-stable feature, and, when a voltage is applied with the second electrode layer as a cathode, the molecular orientation of the ferroelectric liquid crystal changes about two times the tilt angle of the ferroelectric liquid crystal and in parallel to the surface of the first orientation processing substrate.

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Inventors:
OKABE MASATO (JP)
SAWATARI NAOKO (JP)
HAMA HIDEO (JP)
Application Number:
PCT/JP2006/309959
Publication Date:
November 23, 2006
Filing Date:
May 18, 2006
Export Citation:
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Assignee:
DAINIPPON PRINTING CO LTD (JP)
OKABE MASATO (JP)
SAWATARI NAOKO (JP)
HAMA HIDEO (JP)
International Classes:
G02F1/1337; C09K19/02; C09K19/38; G02F1/133; G02F1/141
Foreign References:
JP2003241226A2003-08-27
JP2003029237A2003-01-29
US20020085153A12002-07-04
JP2002532755A2002-10-02
Other References:
NONAKA, T.; LI, J.; OGAWA, A.; HORNUNG, B.; SCHMIDT, W.; WINGEN, R.; DUBAL, H., LIQ. CRYST., vol. 26, 1999, pages 1599
PATEL, J.; GOODBY, J. W., J. APPL. PHYS., vol. 59, 1986, pages 2355
See also references of EP 1890187A4
Attorney, Agent or Firm:
Yamashita, Akihiko c/o Tokyo, Central Patent Firm (3rd Floor Oak Building Kyobashi, 16-10, Kyobashi 1-chom, Chuou-ku Tokyo 31, JP)
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