Biaxial Liquid Crystal Electro-Optic Devices

KSU.267

Abstract: The two symmetry directions of the biaxial nematic LC are aligned by surface treatment in a manner very similar to the conventional displays. Using low- and/or high-frequency (or a combination thereof) voltage signals, the spatial orientation of one or both optic axes is manipulated to obtain the desired optical retardation for transmitted light.  The switching speed of such devices is two orders of magnitude faster.  This will get rid of the blurriness of fast moving objects in a video display.  Furthermore, due to the advantage/ability of controlling two axes, one has better control and can fabricate devices for application not before possible with the conventional uniaxial LC.

Application(s): This invention teaches the fabrication of fast flat panel displays, multi-state optical devices, inexpensive and electrically tunable retardation films with conventional methods. It can potentially significantly improve all current LC products and open the door to new devices, for example, 3D displays.

Advantages: Multiple advantages originating from faster switching and better control and manipulation of optical properties for superior performance

Inventors: Dr. Satyendra Kumar