Pressure sensitive liquid crystalline light modulating device an

Details Pressure sensitive liquid crystalline light modulating device an Pressure sensitive liquid crystalline light modulating device an

1999-12-15

2000-08-15

Dudek, James A.

Liquid crystal cells, elements and systems

Liquid crystal system

Liquid crystal writing tablet

349169, 349 23, 349 25, 349 86, 349176, G02F 1137, C09K 1902

Patent

active

061044482

ABSTRACT:
A new liquid crystalline light modulating cell and material are characterized by liquid crystalline light modulating material of liquid crystal and polymer, the liquid crystal being a chiral nematic liquid crystal having positive dielectric anisotropy and including chiral material in an amount effective to form focal conic and twisted planar textures, the polymer being distributed in phase separated domains in the liquid crystal cell in an amount that permits the liquid crystal to change textures upon the application of a field and ruggedizes the structure. In still another embodiment, the material exhibits stability at zero field in a colored, light reflecting state, a light scattering state and multiple stable reflecting state therebetween, as well as being optically clear in the presence of a field. In yet another embodiment, the application of mechanical force to the cell changes the material from an optically clear state to a light reflecting state.

REFERENCES:
patent: 5493430 (1996-02-01), Lu et al.
patent: 5691795 (1997-11-01), Doane et al.
patent: 5729320 (1998-03-01), Eidenschink et al.
patent: 5847798 (1998-12-01), Yang et al.
West et al. "Flexible Displays Utilizing Bistable, Reflective Cholestericy Polymer Dispersions and Polyester Substrates" Asia Display 95--pp. 55-57--Oct. 1995.

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