Liquid crystal display element

• Main Authors: JANG KEUM-HEE, KODERA FUMIAKI, GOTO MARINA, HASEBE HIROSHI, YAMAMOTO SHUHEI, SUDO GO, TAKATSU HARUYOSHI, FUJISAWA TORU
• Format: Patent
• Language: Chinese; English
• Published: 27.03.2018
• Subjects: ADHESIVES; CHEMISTRY; COMPOSITIONS BASED THEREON; 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

The present invention provides a liquid crystal display element in which the fall time of a liquid crystal is improved, thereby yielding exceptional high-speed response and allowing polymer networks to be formed at high sensitivity, even at relatively long UV irradiation wavelengths, without adversely affecting the voltage hold rate (VHR); it being possible to manufacture said display element exceptionally efficiently. Provided is a liquid crystal display element in which a liquid crystal composition that contains one or more liquid crystal compounds held between two transparent substrates contains a polymer or copolymer that is a cured polymerizable composition containing one or more polymerizable compounds and a photopolymerization initiator having a maximum absorption wavelength peak at310-380 nm; the polymerizable composition content relative to the total weight of the polymerizable composition and the liquid crystal composition being at least 1% by mass to less than 40% by mass. 本发明提供种通过改善液晶的下降时间而高速响应性优异