POLARIZING PLATE AND OPTICAL DISPLAY APPARATUS
A polarizing plate and an optical display apparatus including the same are disclosed. A polarizing plate includes: a polarizer; and an optical stack on a surface of the polarizer, the optical stack including an antiglare layer, and the polarizing plate has an external haze of greater than 30%, an internal haze of less than 10%, a 60 degree gloss of 10 GU or less, and a 60 degree gloss-to-85 degree gloss ratio (60 degree gloss/85 degree gloss) of 0.2 or less.
1 . A polarizing plate comprising:
a polarizer; and
an optical stack on a surface of the polarizer, the optical stack comprising an antiglare layer,
wherein the polarizing plate has an external haze of greater than 30%, an internal haze of less than 10%, a 60 degree gloss of 10 GU or less, and a 60 degree gloss-to-85 degree gloss ratio of 0.2 or less.
2 . The polarizing plate as claimed in claim 1 , wherein the polarizing plate has an 85 degree gloss of 50 GU or less.
3 . The polarizing plate as claimed in claim 1 , wherein the polarizing plate has an external haze-to-internal haze ratio of 5 or greater.
4 . The polarizing plate as claimed in claim 1 , wherein the optical stack has an external haze less than or equal to that of the polarizing plate.
5 . The polarizing plate as claimed in claim 1 , wherein the optical stack has an internal haze less than or equal to that of the polarizing plate.
6 . The polarizing plate as claimed in claim 1 , wherein the optical stack has a 60 degree gloss greater than that of the polarizing plate.
7 . The polarizing plate as claimed in claim 1 , wherein the optical stack has an 85 degree gloss greater than or equal to that of the polarizing plate.
8 . The polarizing plate as claimed in claim 1 , wherein the polarizer comprises a polyvinyl alcohol-based film containing a hydrophilic functional group and a hydrophobic functional group.
9 . The polarizing plate as claimed in claim 1 , wherein the antiglare layer has roughness on an outermost surface thereof.
10 . The polarizing plate as claimed in claim 9 , wherein the antiglare layer has a surface roughness of 1,000 nm or less.
11 . The polarizing plate as claimed in claim 9 , wherein, in the antiglare layer, a content of inorganic particles alone, a content of organic particles alone, or a total content of inorganic particles and organic particles is 0.5 wt % or less.
12 . The polarizing plate as claimed in claim 1 , wherein the optical stack comprises a base layer, the antiglare layer, and an antireflection layer stacked in sequence.
13 . The polarizing plate as claimed in claim 12 , wherein the antireflection layer has a surface roughness of 200 nm or less.
14 . The polarizing plate as claimed in claim 1 , further comprising a protective layer.
15 . An optical display apparatus comprising the polarizing plate as claimed in claim 1 .