LIQUID CRYSTAL ALIGNMENT FILM, METHOD FOR PREPARING THE SAME AND USE THEREOF
First Claim
1. A method for preparing a liquid crystal alignment film, comprising the steps of:
- (1) coating stearic acid onto a substrate;
(2) adding a polyamide acid salt solution to deionized water, to allow the polyamide acid salt solution to form a stable film of a monomolecular layer on the surface of the deionized water;
(3) contacting the substrate coated with a layer of stearic acid horizontally with the monomolecular layer of the polyamide acid salt on the surface of the deionized water, to form a monomolecular polyamide acid salt layer, and(4) imidizing the monomolecular polyamide acid salt layer to form a monomolecular polyimide film.
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Abstract
A liquid crystal alignment film, a method for preparing the same and use thereof. The method for preparing the alignment film comprises the steps of: coating stearic acid onto a substrate; adding a polyamide acid salt solution to deionized water to allow the polyamide acid salt solution to form a stable film of a monomolecular layer on the surface of the deionized water, contacting the substrate coated with a layer of stearic acid horizontally with the monomolecular layer of the polyamide acid salt on the surface of the deionized water to form a monomolecular polyamide acid salt layer; and imidizing the monomolecular polyamide acid salt layer to form a monomolecular polyimide film.
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Citations
19 Claims
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1. A method for preparing a liquid crystal alignment film, comprising the steps of:
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(1) coating stearic acid onto a substrate; (2) adding a polyamide acid salt solution to deionized water, to allow the polyamide acid salt solution to form a stable film of a monomolecular layer on the surface of the deionized water; (3) contacting the substrate coated with a layer of stearic acid horizontally with the monomolecular layer of the polyamide acid salt on the surface of the deionized water, to form a monomolecular polyamide acid salt layer, and (4) imidizing the monomolecular polyamide acid salt layer to form a monomolecular polyimide film. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 14, 15, 16, 17, 18, 19)
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13. (canceled)
Specification