SILACYCLOHEXANE COMPOUND, LIQUID CRYSTAL COMPOSITION, AND LIQUID CRYSTAL DISPLAY ELEMENT CONTAINING THE SAME

PROBLEM TO BE SOLVED: To obtain a new silacyclohexane compound, low in driving voltage, exhibiting liquid crystal properties in a wide temperature range, improved in low temperature performance, improve in liquid crystal characteristics, and useful for liquid crystal displays, etc. SOLUTION: The new...

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Bibliographic Details
Main Authors KANOU TAKESHI, OGIWARA TSUTOMU, SHIMIZU TAKAAKI, KURIHARA HIDESHI
Format Patent
LanguageEnglish
Published 28.04.1998
Edition6
Subjects
ACYCLIC, CARBOCYCLIC OR HETEROCYCLIC COMPOUNDS CONTAININGELEMENTS OTHER THAN CARBON, HYDROGEN, HALOGEN, OXYGEN, NITROGEN,SULFUR, SELENIUM OR TELLURIUM
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
ORGANIC CHEMISTRY
PAINTS
PHYSICS
POLISHES
TECHNIQUES OR PROCEDURES FOR THE OPERATION THEREOF
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Summary:PROBLEM TO BE SOLVED: To obtain a new silacyclohexane compound, low in driving voltage, exhibiting liquid crystal properties in a wide temperature range, improved in low temperature performance, improve in liquid crystal characteristics, and useful for liquid crystal displays, etc. SOLUTION: The new silacyclohezane compound of formula I [R is a 1-10C linear alkyl, a 3-8C branched alkyl, a 2-7C alkoxyalkyl, a 1-10C mono or difluoroalkyl, a 2-8C alkenyl; when (i) is 1, groups of formulas II and III are each trans-1,4-cyclohexylene or trans-1,4-disilacyclohexylene having Si at the 4-position wherein the Si has a substituent such as H, F, Cl, CH3 , etc., and either one of the groups of formulas I and II is trans-1,4-disilacyclohexylene; when (i) is 0, the groups of formulas I and II are each trans 1-,4- disilacyclohexylene; X is H, CN, F, Cl, CF3 , etc.; Y, Z1 , Z2 are each H, F; (i), (ii) are each 0,1; (iii) is 0, 1, 2] is useful for liquid crystal display elements, etc.
Bibliography:Application Number: JP19960264399