TECHNOLOGY FOCUS - POLYMERS - Preferred Property: The spiral pitch of the chiral smectic C phase at the time of clamping the ferroelectric liquid-crystal composition to substrate is 800 nm to 5 mu m. The ferroelectric liquid crystal display element has display decompression capability with respect to the pressure of 1 kg or less per 0.2 mm2. Preferred Composition: The ferroelectric liquid-crystal composition contains compound with asymmetrical atom, compound with axial asymmetry or surface dissymmetry, and chiral compound does not have or have polymeric group. The chiral smectic C phase is chosen from isotropic liquid-chiral-nematic phase-smectic A phase-chiral smectic C phase, isotropic liquid-chiral-nematic phase-chiral smectic C phase, isotropic-liquid-blue phase-chiral-nematic phase-smectic A phase-chiral smectic C phase, isotropic liquid-blue phase-chiral-nematic phase-chiral smectic C phase and isotropic liquid-chiral smectic C phase. The ferroelectric liquid-crystal composition contains pitch canceller which is an additive which cancels the pitch in a chiral-nematic phase or chiral smectic C phase, polymeric compound, biaxial compound, inorganic particles, organic-inorganic hybrid particles, and ion and trap material of a polar compound. The liquid crystalline compound is chosen from compound of formula (I)-(III). The ferroelectric liquid crystal display element has alignment film, retardation film and touch panel. The alignment film contains polyimide, polyamide, polyamic acid, or photo-alignment film.R=H, fluoro, or 1-18C linear or branched alkyl, in which -CH2- group(s) in alkyl (optionally substituted by -O-, -S-, -CO-, -CO-O-, -O-CO-, -CO-S-, -S-CO-, -O-SO2-, -SO2-O-, -O-CO-O-, -CH=CH-, -C?=C-, cyclo propylene or -Si(CH3)2- such that oxygen or sulfur does not mutually or directly bonded), and one or more H atoms in alkyl (optionally substituted by fluoro, chloro, bromo or CN group);Z,Z100,Z101=-O-, -S-, -CO-, -CO-O-, -O-CO-, -O-CO-O-, -CO-N(Ra)-, -N(Ra)-CO-, -OCH2-, -CH2O-, -SCH2-, -CH2S-, -O-SO2-, -SO2-O-, -CF2O-, -OCF2-, -CF2S-, -SCF2-, -CH2CH2-, -CF2CH2-, -CH2CF2-, -CF2CF2-, -CH=CH-, -CF=CH-, -CH=CF-, -CF=CF-, -C?=C-, -CH=CH-CO-O-, -O-CO-CH=CH- or single bond;Ra=H or linear or branched 1-4C alkyl;Y=single bond or linear or branched 1-10C alkylene, in which methylene group(s) in alkylene (optionally substituted by -O-, -CO-, -COO-, or -OCO- such that oxygen sulfur does not mutually or directly bonded) and one or more H atom(s) in alkylene (optionally substituted by halog or 1-9C alkyl);X=halo, cyano, methyl, methoxy, -CF3, or -OCF3;n=0-4;n1-n4=0 or 1;n1+n2+n3+n4=1-4;Cyclo=3-10C cycloalkane (optionally substituted by double bond);R100,R101=chiral group-containing H, cyano, NO2, halo, OCN, SCN, SF5, 1-30C chiral or achiral alkyl, polymeric group, or ring structure, in which CH2 group in alkyl (optionally substituted by -O-, -S-, -NH-, -N(CH3)-, -CO-, -COO-, -OCO-, -OCO-O-, -S-CO-, -CO-S-, -CH=CH-, -CF2-, -CF=CH-, -CH=CF-, -CF=CF- or -C?=C-), and one or more H atoms in alkyl (optionally substituted by halo or cyano);A100,A101=trans-1,4- cyclohexylene group, in which -CH2- group(a) (optionally substituted by -O- or -S-), 1,4-phenylene group, in which -CH= groups(s) (optionally substituted by N), or 1,4-cyclohexenylene group, 1,4-bicyclo (2.2.2) octylene group, indan-2,5-diyl, naphthalene-2,6-diyl group, decahydronaphthalene-2, 6-diyl group, or 1,2,3,4-tetrahydronaphthalene-2,6- diyl group, in which -CH2- group(s) (optionally substituted by -O- or -S-) and -CH= group(s) (optionally substituted by N) (all optionally substituted by halo, cyano or NO2), in which one or more H atoms in 1-C7 (optionally substituted by flouro, chloro, alkoxy, alkyl carbonyl or alkoxycarbonyl);n11=0 or 1;andD=group of formula (D1)-(D8), in which arbitrary hydrogen atoms of one or more of a benzene ring (optionally substituted by flouro, chloro, bromo or iodo, 1-20C alkyl, or alkoxy), H in alkyl or alkoxy (optionally substituted by fluoro), and methylene in alkyl or alkoxy (optionally substituted by -O-, -S-, -COO-, -OCO-, -CF2-, -CF=CH-, -CH=CF-, -CF=CF- or -C(?=)C- such that oxygen or sulfur may not mutually or directly bonded).(i) m12=0 when n11 is 0, (ii) m11 is 0, 1, 2, 3, 4 or 5 when n11 is 1, (iii) m11 and m12 are 0,1,2,3,4 or 5 when n11 is 0, and (iv) At least one of R100 and R101 is chiral group-containing chiral alkyl group, polymeric group or ring structure.