Liquid crystal cells – elements and systems – Particular structure – Having significant detail of cell structure only
Reexamination Certificate
2006-12-12
2006-12-12
Schechter, Andrew (Department: 2871)
Liquid crystal cells, elements and systems
Particular structure
Having significant detail of cell structure only
C349S122000, C428S001100
Reexamination Certificate
active
07148941
ABSTRACT:
Disclosed is an optical compensator for a liquid crystal display having improved optical properties, comprising a transparent polymeric support bearing an orientation layer and a photochemically cured optically anisotropic layer, in that order, wherein a photochemically cured barrier layer is present between the orientation layer and the support, and wherein the barrier layer, as disposed on the support, exhibits an indentation modulus of less than 2 GPa. The invention further provides a compensator comprising a transparent polymeric support, an orientation layer, and a photochemically cured optically anisotropic layer, in that order, wherein a photochemically cured barrier layer is present between the orientation layer and the support, and wherein there is present a compliant layer softer than the barrier layer adjacent to the support side of the barrier layer, and further comprises a compensator containing two or more compensator layers, with or without an adjacent compliant layer and a process for making the foregoing.
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Houghtaling Bradley M.
Jones Tamara K.
Nair Mridula
Sedita Joseph S.
Trest Jeffrey A.
Eastman Kodak Company
Kluegel Arthur E.
Schechter Andrew
Wang George Y.
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