PURPOSE: To provide the mixture containing a specific compd., having a low m.p. and a wide Sc phase range, having high contrast and excellent orientation properties and suitable for a ferroelectric liquid-crystal mixture.
CONSTITUTION: The objective mixture contains one or more kind of a compd. represented by formula I (wherein R1 and R are each 1-18C alkyl; and a ring A is represented by formula II) and/or one or more kind of a compd. represented by formula III (A), one or more kind of a compd. represented by formula IV [wherein R1 and R2 are each 1-22C alkyl, A1-A3 are each (F-substd.) 1,4- phenylene or the like; M1-M3 are -O-, -CO-O- or the like; X1-X4 are each CH or N; a, b, c, d, e and f are 0 or 1; and a+c+e is 0-3], a compd. represented by formula V (C) and one or more kind of a compd. (D) such as a silicon compd. represented by formula VI (wherein M1 and M2 are each -CO-O- or the like; i, k, l, m and n are 0 or 1; and i+l+n are 2 or 3).
DEIITOMAA YUNGUBAUAA
YAFUIIA MANERO
