Patent Number: 7,535,531

Title: Birefringent optical film, laminated polarizing plate, liquid crystal display and image

Abstract: The present invention provides a birefringent optical film that allows a liquid crystal display to achieve excellent contrast and a wide viewing angle and does not cause coloring of the liquid crystal display. The birefringent optical film includes at least one birefringent A-layer having a property satisfying ny.sub.a.gtoreq.nz.sub.a>nx.sub.a or nz.sub.a>ny.sub.a>nz.sub.a and at least one birefringent B-layer having a property satisfying nx.sub.b.gtoreq.ny.sub.b>nz.sub.b.

Inventors: Nishikouji; Yuuichi (Ibaraki, JP), Yoshimi; Hiroyuki (Ibaraki, JP), Murakami; Nao (Ibaraki, JP)

Assignee: Nitto Denko Corporation

International Classification: G02F 1/1335 (20060101)

Expiration Date: 2021-05-19 0:00:00