| 发明名称 |
PHASE DIFFERENCE FILM, POLARIZING PLATE, AND LIQUID CRYSTAL DISPLAY DEVICE |
| 摘要 |
The purpose of the present invention is to provide a cellulose acetate film having excellent adhesion to a polarizer, and in which there is minimal change in retardation with respect to residual solvent during film stretching. This phase difference film contains cellulose acetate α having a degree of acetyl substitution of 2.1 or less, cellulose acetate β having a degree of acetyl substitution of 2.3-2.5, and a compound having a van der Waals volume of 500 Å3 to 1000 Å3 in the amount of 5-10 mass % with respect to the total amount of the cellulose acetate α and the cellulose acetate β, and the phase difference film is stretched. |
| 申请公布号 |
US2014326930(A1) |
申请公布日期 |
2014.11.06 |
| 申请号 |
US201214354213 |
申请日期 |
2012.11.01 |
| 申请人 |
Konica Minolta, Inc. |
发明人 |
Takagi Takahiro |
| 分类号 |
G02F1/13363;G02B5/30 |
主分类号 |
G02F1/13363 |
| 代理机构 |
|
代理人 |
|
| 主权项 |
1. A retardation film comprising:
cellulose acetate α having a degree of acetyl substitution of 2.1 or less; cellulose acetate β having a degree of acetyl substitution of 2.3 to 2.5; and a compound having a van der Waals volume of 500 Å3 to 1,000 Å3 in an amount of 5 to 10 wt % relative to the total of the cellulose acetate α and the cellulose acetate β, wherein the retardation film is stretched. |
| 地址 |
Tokyo JP |
