Very thin achromatic quarter wave film laminate for transflective LCD and method for producing the same
First Claim
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1. An achromatic quarter wave film laminate for transflective LCD comprising:
- a lower optical-orientation film;
a lower phase difference film coated on the lower optical-orientation film;
a upper optical-orientation film coated on the lower phase difference film; and
a upper phase difference film coated on the upper optical-orientation film,wherein the lower phase difference film and the upper phase difference film are made of liquid crystal, andwherein the lower and the upper optical-orientation films are formed by dissolving a multicyclic compound having a photo-reactive group-containing main chain, and a cross-linking agent in a solvent, and subjecting the solution to coating, drying and UV (ultraviolet) curing.
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Abstract
Disclosed herein is an very thin achromatic quarter wave film laminate for transflective LCD included in an LCD polarizer. More specifically, the very thin achromatic quarter wave film laminate for transflective LCD has a considerably reduced thickness, as compared to conventional quarter wave films in which anisotropic polymeric films are laminated.
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Citations
16 Claims
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1. An achromatic quarter wave film laminate for transflective LCD comprising:
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a lower optical-orientation film; a lower phase difference film coated on the lower optical-orientation film; a upper optical-orientation film coated on the lower phase difference film; and
a upper phase difference film coated on the upper optical-orientation film,wherein the lower phase difference film and the upper phase difference film are made of liquid crystal, and wherein the lower and the upper optical-orientation films are formed by dissolving a multicyclic compound having a photo-reactive group-containing main chain, and a cross-linking agent in a solvent, and subjecting the solution to coating, drying and UV (ultraviolet) curing. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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8. A method for manufacturing an achromatic quarter wave film laminate for transflective LCD:
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preparing a substrate; coating a solution for an orientation film on the substrate, followed by drying and polarized UV radiation, to form a lower optical-orientation film; coating a liquid crystal solution on the lower optical-orientation film;
subjecting the coating to drying and UV curing to form a lower liquid crystal layer;coating the solution for an orientation film on the lower liquid crystal layer, followed by drying and polarized UV radiation, to form a upper optical-orientation film; coating a liquid crystal solution on the upper optical-orientation film; and
subjecting the coating to drying and UV curing to form a upper liquid crystal layer,wherein the solution for an orientation film is prepared by dissolving a multicyclic compound having a photo-reactive group-containing main chain, and a cross-linking agent in a solvent. - View Dependent Claims (9, 10, 11, 12, 13, 14, 15, 16)
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Specification