Fluorinated naphthalene derivatives, liquid crystal compositions and liquid crystal displays containing them

• Main Authors: SCHMIDT, WOLFGANG, BREMER, MATTHIAS, KLASEN-MEMMER, MELANIE, HORNUNG, BARBARA, WINGEN, RAINER
• Format: Patent
• Language: English; French; German
• Published: 10.12.2003
• Edition: 7
• Subjects: ACYCLIC OR CARBOCYCLIC COMPOUNDS; 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

Fluorinated naphthalene compounds are new. Fluorinated naphthalene compounds (I) of formula (1) are new. R1, R2 = H, 1-12C alkyl or 2-8C alkenyl, optionally having a non-terminal CH2 group replaced by -O-, -C(=O)O- or a CH2 group replaced by -Ctriple bondC-, cyclopropan-1,2-diyl or cyclobutan-1,3-diyl and/or H-atoms are replaced by F whereby R1, R2 are not simultaneously H; M1, M2 = -C(=O)O-, -CH2O-, -CC-, -CH2CH2,-, -(CH)2)4-, -CF2CF2, -CF2O-, or a single bond; E1-E2 = C=CH- or CHCH2-; m, n = 0-2; m+n = 0-2; p = 0 or 1; A, B = phenylen-1,4-diyl, optionally substituted by F, cyclohexan-1,4-diyl, optionally mono- or disubstituted by F, cycohexan-1,4-diyl , optionally monosubstituted by F or 1,3-dioxan-2,5-diyl Independent claims are included for: (1) a liquid crystal medium (II) containing a compound (I) and; (2) a liquid crystal display containing the medium (II). Die vorliegende Erfindung betrifft Verbindungen der Formel (I) worin die Parameter die in Anspruch 1 gegebene Bedeutung haben, sowie deren Verwendung in Flüssigkristallmedien, Flüssigkristallmedien die diese Verbindungen enthalten und Flüssigkristallanzeien die diese Medien enthalten.