Liquid crystal display wide viewing angle polarizing film and liquid crystal display wide viewing angle polarizing adhesive film

• US 20020140882A1
• Filed: 01/14/2002
• Published: 10/03/2002
• Est. Priority Date: 01/23/2001
• Status: Active Grant

• Current Assignee: Nitto Denko Corporation
• Original Assignee: Nitto Denko Corporation
• Inventors: Kitagawa, Atsushi, Ootani, Akira, Mihara, Hisashi
• Granted Patent: US 6,888,592 B2
• Time in Patent Office: Days
• US Class Current: 349/96
• CPC Class Codes: G02F 1/133528 Polarisers

Abstract

A liquid crystal display comprising a liquid crystal display wide viewing angle polarizing adhesion film, which comprising a polarizing layer laminated on an optical compensation film and a retardation film and/or a brightness enhancement film laminated on said polarizing layer, wherein said polarizing layer is directly laminated on said optical compensation film, adhered onto at least one side of a liquid crystal panel, is less brightness nonuniformities.

Claims

1. A liquid crystal display wide viewing-angle polarizing film comprising a polarizing layer laminated on an optical compensation film and a retardation film and/or a brightness enhancement film laminated on said polarizing layer, wherein said polarizing layer is directly laminated on said optical compensation film.

2. The liquid crystal display wide viewing angle polarizing film according to claim 1, wherein said optical compensation film comprises a support film and an optically anisotropic layer formed of a material having a liquid-crystalline property.

3. The liquid crystal display wide viewing angle polarizing film according to claim 1, wherein said polarizing layer is prepared by a lyotropic solution containing a dichroic dye.

4. The liquid crystal display wide viewing angle polarizing film according to claim 1, wherein said polarizing layer is prepared by a liquid-crystal polymer solution containing a dichroic dye.

5. The liquid crystal display wide viewing angle polarizing film according to claim 1, wherein a thickness of said polarizing layer is in a range of from 0.1 to 15 μ

m.

6. The liquid crystal display wide viewing angle polarizing film according to claim 1, wherein comprising a protective layer on a surface of said polarizing layer.

7. A production method for the liquid crystal display wide viewing angle polarizing film according to claim 1 comprising step of, laminating a polarizing a polarizing-layer through coating-application of a polarizing-layer forming material, and laminating a retardation film and/or a brightness enhancement film onto said polarizing layer.

8. A liquid crystal display wide viewing angle polarizing adhesion film comprising the liquid crystal display wide viewing angle polarizing film according to claim 1 and an adhesion layer for a glass-substrate surface of a liquid crystal panel.

9. A liquid crystal display comprising the liquid crystal display wide viewing angle polarizing adhesion film according to claim 8 adhered onto at least one side of a liquid crystal panel.