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US 6,597,422 B1Granted
Orientation layer for a liquid crystal material
AssigneeRolic AG
InventorsJürg Fünfschilling, Martin Stalder, Martin Schadt
Life of this patent
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Abstract
A liquid crystal device comprising ferroelectric liquid crystal material aligned by a liquid crystal polymer (LCP) network layer (18) under 20 nm thick, which itself was aligned by a photo-oriented linearly photopolymerized (LPP) layer (16) under 20 nm thick, exhibits low voltage drop over the aligning layer and has a remarkable contrast ratio.
Claims14
An orientation layer for a liquid crystal material comprising
- a first layer of a linearly photopolymerised polymer and
- a second layer of a nematic prepolymer-based anisotropic network,
- wherein the combined thickness of said first layer and said second layer is less than or equal to 40 nanometers.
Dependencies are inferred from the claim text.