Patent ID: 6141076
Filing Date: 2000-10-31
Classification: C09K,G02F

Abstract:
A twisted non-surface-stabilized ferroelectric liquid crystal electro-optic modulator, comprising:a first assembly having a first electrode and a first buffed alignment layer having a first buffing direction, for aligning a first adjacent portion of said ferroelectric liquid crystal;a second assembly having a second electrode and a second buffed alignment layer, having a second buffing direction at an angle of from about 44.degree. to about 90.degree. from said first buffing direction, for aligning a second adjacent portion of said ferroelectric liquid crystal; andferroelectric liquid crystal material positioned between said first and second assembly, in contact with said first and second buffed alignment layers, said ferroelectric liquid crystal material having a room temperature cone angle between about 20.degree. and about 25.degree., said first buffed alignment layer and said second buffed alignment layer providing an anchoring energy, wherein said ferroelectric liquid crystal material is provided with a pre-tilt angle of between about 3 degrees and about 7 degrees; anda voltage source configurable for providing an applied voltage across said first and second electrodes.