(1) The typical smectic phase and nematic phase texture can be observed.

(2) Some of smectic mesophase liquid crystals exhibit both ferro- electric and pyroelectric properties.

(3) Some smectic mesophase liquid crystal exhibit ferroelectric and pyroelectric properties.

(4) Study by polarizing microscopy showed that they were enantiotropic liquid crystals with highly stable smectic A and nematic phases.

(5) A terminal end hydrogen atom will greatly damage mesomorphic properties, especially smectic C phase.

(6) It is found that the compound 3 went into liquid crystal phase when heated to their Tm. The typical smectic phase and nematic phase texture can be observed.

(7) The results showed that the polymer is a thermotropic liquid crystal and appeared of nematic and smectic texture.

(8) An active-load type, dual-gate TFT pixel amplifier is used to drive a V-shaped-switching smectic LC without voltage fluctuation.

(9) The introduction of chiral center and lateral fluorines enable the liquid crystals to give unusual smectic textures.