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US 8,619,212 B2Granted
Protective film, lower polarizing plate, liquid crystal display panel, display device, and method for producing protective film
AssigneeDai Nippon Printing Co., Ltd.
InventorsEiji Asano, Mitsuru Inoue, Katsunori Shintani, Daijiro Kodama, Keiko Kitano
Life of this patent
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Abstract
There is provided a protective film to be bonded to a polarizer to form a lower polarizing plate for a liquid crystal display panel. The protective film for a lower polarizing plate includes a matrix of a resin material and a diffusing component dispersed in the matrix. At least one-side surface, which is to face the polarizer, of the protective film is flat.
Claims12
A protective film for a lower polarizing plate comprising:
- a matrix of a resin material;
- a diffusing component dispersed in the matrix;
- a light diffusing portion including the diffusing component;
- and
- a resin portion including no diffusion component;
- wherein the protective film for a lower polarizing plate is bonded to a polarizer to form a lower polarizing plate for a liquid crystal display panel;
- wherein at least one-side surface of the protective film, which faces the polarizer, is flat, and wherein the other-side surface opposite to the one-side surface is a prism surface formed by arranged unit prisms;
- and
- wherein the unit prisms are included in the resin portion, and the light diffusing portion is disposed between the polarizer and the resin portion.
6 more elements
Dependencies are inferred from the claim text.