LIQUID CRYSTAL COMPOSITION AND LIQUID CRYSTAL ELEMENT PRODUCED BY USING THE COMPOSITION

• Main Authors: TAKANO NAOYUKI, MINAMII MASAYOSHI, AZUMAI TAKAYUKI, FUJIMOTO YUKARI, ENDO KYOKO, SEKINE CHIZU, FUJISAWA KOICHI
• Format: Patent
• Language: English
• Published: 16.05.1995
• Edition: 6
• Subjects: 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

PURPOSE:To obtain a non-chiral smectic liquid crystal composition containing a specific phenylquinoxaline compound and a specific phenylnaphthalene compound, etc., at specific ratios, having wide Sc temperature range and high response speed and useful for liquid crystal display, etc. CONSTITUTION:This non-chiral smectic liquid crystal composition contains (A) a phenylquinoxaline compound of formula I [R1 is a 3-20C alkyl or an alkoxyalkyl; (m) is 0-2; A is direct bond, O, COO, CidenticalC, CH=CH, etc.; R2 is a (halogen-substituted) 2-20C alkoxyalkyl; F is a halogen] and/or (B) a phenylnaphthalene compound of formula II (R3 is R1; R4 is R2; (n) is (m); G is F) and (C) a compound of formula III [R5 is a 5-15C alkyl, etc.; X is direct bond, etc.; Ar is a group of formula IV, etc.; R6 is a group of formula V ((p) is 0-10; Y is X; R7 is a 5-15C alkyl, etc.)] wherein all weight ratios A/C, B/C and (A+B)/C are (20-80)/(80-20).