CHOLESTERIC LIQUID CRYSTAL COMPOSITION FOR ACTIVE MATRIX DRIVING

PROBLEM TO BE SOLVED: To provide a liquid crystal composition that has a high refractive index anisotropy and a low threshold voltage, and is improved in burn-in phenomenon when used for constructing an active matrix-driven cholesteric liquid crystal display element, and to also provide an active ma...

Ausführliche Beschreibung

Gespeichert in:

Bibliographische Detailangaben
Hauptverfasser:	KURISAWA KAZUKI, KOTANI KUNIHIKO
Format:	Patent
Sprache:	eng
Schlagworte:	ADHESIVES CHEMISTRY DEVICES OR ARRANGEMENTS, THE OPTICAL OPERATION OF WHICH ISMODIFIED BY CHANGING THE OPTICAL PROPERTIES OF THE MEDIUM OF THEDEVICES OR ARRANGEMENTS FOR THE CONTROL OF THE INTENSITY,COLOUR, PHASE, POLARISATION OR DIRECTION OF LIGHT, e.g.SWITCHING, GATING, MODULATING OR DEMODULATING DYES FREQUENCY-CHANGING MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FORELSEWHERE METALLURGY MISCELLANEOUS APPLICATIONS OF MATERIALS MISCELLANEOUS COMPOSITIONS NATURAL RESINS NON-LINEAR OPTICS OPTICAL ANALOGUE/DIGITAL CONVERTERS OPTICAL LOGIC ELEMENTS OPTICS PAINTS PHYSICS POLISHES TECHNIQUES OR PROCEDURES FOR THE OPERATION THEREOF
Online-Zugang:	Volltext bestellen
Tags:	Tag hinzufügen Keine Tags, Fügen Sie den ersten Tag hinzu!

Beschreibung
Zusammenfassung:	PROBLEM TO BE SOLVED: To provide a liquid crystal composition that has a high refractive index anisotropy and a low threshold voltage, and is improved in burn-in phenomenon when used for constructing an active matrix-driven cholesteric liquid crystal display element, and to also provide an active matrix-driven cholesteric liquid crystal display element improved in burn-in phenomenon and excellent in display quality. SOLUTION: The cholesteric liquid crystal composition for active matrix driving includes a group A of compounds that are two or three ring compounds having a fluorobenzene skeleton, whose refractive index anisotropy is 0.16-0.40 and dielectric anisotropy is 12-30, a group B of compounds that are two or three ring compounds having a cyanobenzene skeleton, whose refractive index anisotropy is 0.10-0.40 and dielectric anisotropy is 10-80, and an optically active compound, wherein the content of the compound group A is 50-90%, the content of the compound group B is 4-30%, and the content of the optically active compound is 0.1-5%. COPYRIGHT: (C)2011,JPO&INPIT