Laminated optical film having a polarizer and two optical compensation layers, and liquid crystal panel and liquid crystal display apparatus using the laminated optical film
First Claim
1. A laminated optical film, comprising:
- a polarizer;
a first optical compensation layer which has a refractive index ellipsoid showing a relationship of nx>
ny>
nz; and
a second optical compensation layer which has a refractive index ellipsoid showing a relationship of nz>
nx>
ny,wherein the polarizer and the first optical compensation layer are placed so that an absorption axis of the polarizer is parallel to or perpendicular to a slow axis of the first optical compensation layer, andthe polarizer and the second optical compensation layer are placed so that an absorption axis of the polarizer is parallel to or perpendicular to a slow axis of the second optical compensation layer, andwherein an in-plane retardation Re2 of the second optical compensation layer satisfies a relationship of 0 nm<
Re2≦
70 nm.
2 Assignments
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Accused Products
Abstract
A laminated optical film according to an embodiment of the present invention includes a polarizer; a first optical compensation layer which has a refractive index ellipsoid showing a relationship of nx>ny>nz; and a second optical compensation layer which has a refractive index ellipsoid showing a relationship of nz>nx>ny, wherein the polarizer and the first optical compensation layer are placed so that an absorption axis of the polarizer is parallel to or perpendicular to a slow axis of the first optical compensation layer, and the polarizer and the second optical compensation layer are placed so that an absorption axis of the polarizer is parallel to or perpendicular to a slow axis of the second optical compensation layer.
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Citations
8 Claims
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1. A laminated optical film, comprising:
-
a polarizer; a first optical compensation layer which has a refractive index ellipsoid showing a relationship of nx>
ny>
nz; anda second optical compensation layer which has a refractive index ellipsoid showing a relationship of nz>
nx>
ny,wherein the polarizer and the first optical compensation layer are placed so that an absorption axis of the polarizer is parallel to or perpendicular to a slow axis of the first optical compensation layer, and the polarizer and the second optical compensation layer are placed so that an absorption axis of the polarizer is parallel to or perpendicular to a slow axis of the second optical compensation layer, and wherein an in-plane retardation Re2 of the second optical compensation layer satisfies a relationship of 0 nm<
Re2≦
70 nm. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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Specification