Optical: systems and elements – Holographic system or element – Using a hologram as an optical element
Patent
1992-03-26
1993-11-16
Sikes, William L.
Optical: systems and elements
Holographic system or element
Using a hologram as an optical element
359103, 359 51, 359 76, G02F 11337, G02F 113
Patent
active
052628825
ABSTRACT:
An orientation layer for a liquid crystal display device is formed from a mixture of at least one reactive liquid-crystal material and at least one non-reactive liquid-crystal material. The mixture is brought into contact with a surface of a mold having an orienting effect, as a result of which the molecules in the mixture are oriented. Subsequently, the reactive liquid-crystal material is made to cure, thereby forming an oriented polymer network in which the non-reactive liquid-crystal material is dispersed. The orientation layer thus manufactured is very suitable for use in an active display device. The liquid crystal device formed has a liquid crystal layer and orientation layers of an oriented polymer network in which liquid crystal material is dispersed.
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Parker Kenneth
Sikes William L.
Spain Norman N.
U.S. Philips Corporation
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