Polarizing plate and liquid crystal display including the same
First Claim
1. A polarizing plate comprising:
- a polarizer; and
a surface protective film on a first surface of the polarizer,wherein the surface protective film comprises a first protective film on the first surface of the polarizer, and a primer layer on at least one surface of the first protective film,a refractive index ratio of the first protective film to the primer layer satisfying Equation 1;
0.6<
R1/R2<
1.0,where R1 is an index of refraction of the primer layer and R2 is an index of refraction of the first protective film,the first protective film having an in-plane retardation of about 500 nm or less and an out-of-plane retardation of about 10,000 nm or less at a wavelength of 550 nm, as respectively represented by Equation 2;
Re=(nx−
ny)×
d, and Equation 3;
Rth=((nx+ny)/2−
nz)×
d, where Re is the in-plane retardation, Rth is the out-of-plane retardation, nx, ny, and nz are indices of refraction at a wavelength of 550 nm in the x-, y- and z-axis directions, respectively, of the first protective film, and d is a thickness of the first protective film.
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Accused Products
Abstract
A polarizing plate and a liquid crystal display including the polarizing plate include: a polarizer; and a surface protective film on a first surface of the polarizer, and the surface protective film includes a first protective film on the first surface of the polarizer, and a primer layer on at least one surface of the first protective film, a refractive index ratio of the first protective film to the primer layer satisfying the equation: 0.6<R1/R2<1.0, where R1 is an index of refraction of the primer layer, and R2 is an index of refraction of the first protective film, and the first protective film has an in-plane retardation (Re) of about 500 nm or less and an out-of-plane retardation (Rth) of about 10,000 nm or less at a wavelength of 550 nm.
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Citations
16 Claims
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1. A polarizing plate comprising:
-
a polarizer; and a surface protective film on a first surface of the polarizer, wherein the surface protective film comprises a first protective film on the first surface of the polarizer, and a primer layer on at least one surface of the first protective film, a refractive index ratio of the first protective film to the primer layer satisfying Equation 1;
0.6<
R1/R2<
1.0,where R1 is an index of refraction of the primer layer and R2 is an index of refraction of the first protective film, the first protective film having an in-plane retardation of about 500 nm or less and an out-of-plane retardation of about 10,000 nm or less at a wavelength of 550 nm, as respectively represented by Equation 2;
Re=(nx−
ny)×
d,and Equation 3;
Rth=((nx+ny)/2−
nz)×
d,where Re is the in-plane retardation, Rth is the out-of-plane retardation, nx, ny, and nz are indices of refraction at a wavelength of 550 nm in the x-, y- and z-axis directions, respectively, of the first protective film, and d is a thickness of the first protective film. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16)
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Specification