NEMATIC LIQUID CRYSTAL COMPOSITION AND LIQUID CRYSTAL DISPLAY ELEMENT USING THE SAME

Provided is a liquid crystal composition that contains a polymerizable compound and is used for producing a PSA- or PSVA-type liquid crystal display element that has excellent response performance and a satisfactory pretilt angle and that contains less residual monomers, in which issues such as alig...

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Bibliographische Detailangaben
Hauptverfasser:	SUDO, Go, GOTO, Marina
Format:	Patent
Sprache:	eng ; fre ; ger
Schlagworte:	ADHESIVES CHEMISTRY COMPOSITIONS BASED THEREON COMPOSITIONS OF MACROMOLECULAR COMPOUNDS 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 MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVINGCARBON-TO-CARBON UNSATURATED BONDS 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 ORGANIC MACROMOLECULAR COMPOUNDS PAINTS PHYSICS POLISHES TECHNIQUES OR PROCEDURES FOR THE OPERATION THEREOF THEIR PREPARATION OR CHEMICAL WORKING-UP USE OF INORGANIC OR NON-MACROMOLECULAR ORGANIC SUBSTANCES ASCOMPOUNDING INGREDIENTS
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Beschreibung
Zusammenfassung:	Provided is a liquid crystal composition that contains a polymerizable compound and is used for producing a PSA- or PSVA-type liquid crystal display element that has excellent response performance and a satisfactory pretilt angle and that contains less residual monomers, in which issues such as alignment defects and display defects caused by a low voltage holding ratio (VHR) or the like do not occur or rarely occur. Also provided is a liquid crystal display element that uses the liquid crystal composition. The liquid crystal composition according to the present invention is a liquid crystal composition that exhibits a sufficiently low viscosity (·), a sufficiently low rotational viscosity (³1), and a large elastic modulus (K 33 ) without decreasing the refractive index anisotropy (n) and the nematic phase-isotropic liquid phase transition temperature (T ni ) and without increasing the solid phase-nematic phase transition temperature (T cn ). The liquid crystal display element that uses this liquid crystal composition satisfactorily obtains a pretilt angle and has a high voltage holding ratio (VHR) and high-speed response. Thus, a liquid crystal display element that has no or less alignment defects and display defects such as image sticking, and has high display quality and high response speed is obtained.