LIQUID CRYSTAL COMPOSITION HAVING NEGATIVE DIELECTRIC ANISOTROPY, AND LIQUID CRYSTAL DISPLAY DEVICE USING THE SAME

PROBLEM TO BE SOLVED: To provide a liquid crystal composition having a negative dielectric anisotropy, which has a large n and a low ; and to provide a liquid crystal display device using the same.SOLUTION: The liquid crystal composition having a negative dielectric anisotropy contains at least one...

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Hauptverfasser:	MARUYAMA KAZUNORI, KOTANI KUNIHIKO, TANIGUCHI SHIRO, OISHI HARUMI
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
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Zusammenfassung:	PROBLEM TO BE SOLVED: To provide a liquid crystal composition having a negative dielectric anisotropy, which has a large n and a low ; and to provide a liquid crystal display device using the same.SOLUTION: The liquid crystal composition having a negative dielectric anisotropy contains at least one compound represented by formula (I) (wherein Rand Rare each independently 1-8C alkyl, alkoxy, 2-8C alkenyl or alkenyloxy; Xto Xare each independently hydrogen, fluorine or chlorine; aand aare each independently 0 or 1; Zand Zare each independently a single bond, -CHCH-, -C≡C-, -C=N-N=C-, -CH=CH-, -CF=CF-, CFO-, -OCF-, -COO- or -OCO-; and Aand Aare each independently a specific divalent 6-membered ring).