LIQUID CRYSTAL COMPOSITION AND LIQUID CRYSTAL DISPLAY ELEMENT

To provide a liquid crystal composition which satisfies at least one characteristic or has an appropriate balance between at least two characteristics in characteristics such as a high upper limit temperature, a low lower limit temperature, a small viscosity, an appropriate optical anisotropy, large...

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Bibliographische Detailangaben
Hauptverfasser:	SAITO MASAYUKI, UNO CHIKAKO
Format:	Patent
Sprache:	eng ; jpn
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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Beschreibung
Zusammenfassung:	To provide a liquid crystal composition which satisfies at least one characteristic or has an appropriate balance between at least two characteristics in characteristics such as a high upper limit temperature, a low lower limit temperature, a small viscosity, an appropriate optical anisotropy, large positive dielectric anisotropy, large specific resistance, high stability to light, high stability to heat, and large elastic constant, and an AM element containing the composition.SOLUTION: A liquid crystal composition may contain a specific liquid crystalline compound having small viscosity as a first component, a specific liquid crystalline compound having large positive dielectric anisotropy as a second component, a specific liquid crystalline compound having a high upper limit temperature or small viscosity as a third component, and a specific liquid crystalline compound having negative dielectric anisotropy as a fourth component.SELECTED DRAWING: None 【課題】高い上限温度、低い下限温度、小さな粘度、適切な光学異方性、正に大きな誘電率異方性、大きな比抵抗、光に対する高い安定性、熱に対する高い安定性、大きな弾性定数のような特性において、少なくとも１つの特性を充足する、または少なくとも２つの特性に関して適切なバランスを有する液晶組成物、およびこの組成物を含むＡＭ素子を提供する。【解決手段】第一成分として小さな粘度を有する特定の液晶性化合物を含有し、第二成分として正に大きな誘電率異方性を有する特定の液晶性化合物、第三成分として高い上限温度または小さな粘度を有する特定の液晶性化合物、および第四成分として負の誘電率異方性を有する特定の液晶性化合物を含有してもよい液晶組成物である。【選択図】なし