Patent ID: 6067142
Filing Date: 2000-05-23
Classification: G02F

Abstract:
A liquid crystal display comprising:a pair of transparent substrates having surfaces facing each other, coated with a conductive material, the conductive material forming pixel electrodes for an array of pixels;a pair of homeotropic alignment layers provided on the conductive material, the alignment layers facing each other and having a same rubbing direction;a liquid crystal material disposed between the alignment layers, the liquid crystal material including molecules;means for providing an electric field to provide an on state and an off state for the pixel electrodes, the off state being characterized by a vertical alignment of the molecules of the liquid crystal material which is substantially perpendicular to the alignment layers; andthe on state being characterized by the orientation of the molecules of the liquid crystal material which are oriented responsive to the electric field such that the molecules above a mid-plane of the liquid crystal material have a tilt in a first direction and the molecules below the mid-plane have a tilt opposite the first direction while the molecules adjacent the alignment layers and at the mid-plane remain substantially perpendicular to the alignment layers, the mid-plane being substantially parallel to the alignment layers.