| 发明名称 |
PROTECTIVE FILM FOR POLARIZING PLATE, POLARIZING PLATE AND LIQUID CRYSTAL DISPLAY DEVICE |
| 摘要 |
A protective film for polarizing plate contains a resin, an ultraviolet absorbing agent A having an absorption maximum in a wavelength range of from 350 to 400 nm and an ultraviolet absorbing agent B having an absorption maximum in a wavelength range of from 270 to 330 nm, and a content of the ultraviolet absorbing agent A is from 0.1 to 5% by weight relative to the resin, a content of the ultraviolet absorbing agent B is from 0.1 to 5% by weight relative to the resin, and the protective film fulfills the requirements (a) to (d) as defined herein. |
| 申请公布号 |
US2014185135(A1) |
申请公布日期 |
2014.07.03 |
| 申请号 |
US201314141699 |
申请日期 |
2013.12.27 |
| 申请人 |
FUJIFILM Corporation |
发明人 |
FUKAGAWA Nobutaka;YAMADA Naoyoshi;YOSHIDA Aiko;WATANABE Yukie |
| 分类号 |
G02B5/20 |
主分类号 |
G02B5/20 |
| 代理机构 |
|
代理人 |
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| 主权项 |
1. A protective film for polarizing plate which comprises a resin, an ultraviolet absorbing agent A having an absorption maximum in a wavelength range of from 350 to 400 nm and an ultraviolet absorbing agent B having an absorption maximum in a wavelength range of from 270 to 330 nm, wherein a content of the ultraviolet absorbing agent A is from 0.1 to 5% by weight relative to the resin, a content of the ultraviolet absorbing agent B is from 0.1 to 5% by weight relative to the resin, and the protective film fulfills the following requirements (a) to (d):
(a) a thickness of the protective film is from 5 to 40 μm, (b) a transmittance of the protective film at a wavelength of 300 nm is 2% or less, (c) a transmittance of the protective film at a wavelength of 380 nm is 4% or less, (d) a surface hardness of the protective film measured by using a Knoop indenter at an indentation load of 50 mN is 210 N/mm2 or more. |
| 地址 |
Tokyo JP |
