Patent ID: 6151095
Filing Date: 2000-11-21
Classification: C09K,G02F

Abstract:
An antiferroelectric liquid crystal cell comprising an antiferroelectric liquid crystal material held between a pair of substrates, wherein said antiferroelectric liquid crystal material has a dielectric constant such that, when a sinusoidal voltage value changing in reference frequency in a range of from 100 Hz to 5 kHz is applied to said antiferroelectric liquid crystal cell, an output voltage from the antiferroelectric crystal cell by the application of the sinusoidal voltage value in each frequency is transformed by a Fourier transform, crystal cell, and the imaginary part of the complex dielectric constant obtained by the Fourier transform of the output voltage value from said antiferroelectric liquid crystal cell is plotted within the reference frequency range of 100 Hz to 5 kHz to provide a plotted characteristic of said antiferroelectric liquid crystal cell, said plotted characteristic has no local maximum value within the reference frequency range of 100 Hz to 5 kHz.