Patent ID: 7847913

Claim:
An active matrix driven liquid crystal display device, comprising: a liquid crystal cell in which a liquid crystal material having spontaneous polarization is sealed, wherein the liquid crystal cell comprises a plurality of pixels; wherein a maximum angle of an optical axis change by liquid crystal molecules of the liquid crystal material is larger than 45 degrees when a voltage of one polarity is applied to the liquid crystal material, and a magnitude Ps (nC/cm 2 ) of the spontaneous polarization per unit area of the liquid crystal material satisfies a condition of |7(V)Clc·A|>|2Ps·A|>|5(V)Clc·A|, and each of the pixels lacks a storage capacitor which is connected in parallel to a liquid crystal capacitor, where A (cm 2 ) is an electrode area of a pixel, and Clc (nF/cm 2 ) is a liquid crystal capacity per unit area.