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Title:
ELECTRO-OPTIC LIGHT CONTROL ELEMENT, DISPLAY AND MEDIUM
Document Type and Number:
WIPO Patent Application WO2002093244
Kind Code:
A3
Abstract:
The invention relates to an electro-optic light control element, electro-optic displays containing said elements and display systems such as TV screens and computer monitors. The inventive light control elements contain a mesogenic control medium which is present in the isotropic phase during operation of the light control elements and are characterized both by good contrast and low angular field dependence and particularly by very short switching times. The invention also relates to the mesogenic control media used in the electro-optic light control elements.

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Inventors:
HECKMEIER MICHAEL (DE)
GOETZ ACHIM (DE)
Application Number:
PCT/EP2002/004300
Publication Date:
August 26, 2004
Filing Date:
April 18, 2002
Export Citation:
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Assignee:
MERCK PATENT GMBH (DE)
HECKMEIER MICHAEL (DE)
GOETZ ACHIM (DE)
International Classes:
G02F1/13; C09K19/02; C09K19/12; C09K19/14; C09K19/20; C09K19/30; C09K19/32; C09K19/34; C09K19/44; C09K19/46; G02F1/07; G02F1/139; G02F1/1343; (IPC1-7): G02F1/139; C09K19/02; G02F1/07; G02F1/1343
Domestic Patent References:
WO1992016519A21992-10-01
Foreign References:
US3795436A1974-03-05
DE10018598A12000-11-02
Other References:
PATENT ABSTRACTS OF JAPAN vol. 1999, no. 12 29 October 1999 (1999-10-29)
J.C.FILIPPINI, Y.POGGI: "Nematogenic liquids: a new class of materials for Kerr cells", JOURNAL OF PHYSICS D (APPLIED PHYSICS), vol. 8, no. 12, 21 August 1975 (1975-08-21), pages L152 - L154, XP002221225
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