Liquid crystal composition and liquid crystal dimming element

The present invention addresses the problem of providing: a liquid crystal composition for a smart window, which is autonomously driven by only sunlight as an energy source without using electrical energy; and a liquid crystal dimming element provided with the liquid crystal composition. This liquid...

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Bibliographische Detailangaben
Hauptverfasser:	IKEDA TOMIKI, KIMURA MASAOMI, TANAKA YOSHIKIYO, UBE TORU
Format:	Patent
Sprache:	chi ; 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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Beschreibung
Zusammenfassung:	The present invention addresses the problem of providing: a liquid crystal composition for a smart window, which is autonomously driven by only sunlight as an energy source without using electrical energy; and a liquid crystal dimming element provided with the liquid crystal composition. This liquid crystal composition contains: a non-polymerizable liquid crystal compound (LB) which exhibits a smectic A phase at room temperature and exhibits a chiral nematic phase on the high-temperature side of the smectic A phase; and at least one dye having a photoisomeric group. 根据本发明，本发明的课题在于能够提供一种不使用电能而仅以太阳光为能源进行自主驱动的智能窗用液晶组合物、具备其的液晶调光元件。本发明的液晶组合物含有非聚合性液晶化合物(LB)、以及至少1种具有光异构性基团的色素，所述非聚合性液晶化合物(LB)在室温呈现近晶A相，并且在比该近晶A相更靠近高温的一侧呈现手性向列相。