Cellulose acylate film and method for producing same, and retardation film, polarizer, and liquid crystal display device comprising the film
US8039066B2 · kind B2 · utility
1Cited by
3References
10Claims
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Key dates
| Filing date | May 18, 2007 |
| Grant date | Oct 18, 2011 |
| Priority date | — |
| Expiry date | Oct 24, 2028 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S428/906
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
A cellulous acylate film in which X-ray diffractive intensity satisfies the following Formulae (I) to (V) and in which a half-value width of the peak at 2θ2 is 2.8° or less as observed in the sectional view in a direction parallel to the transport direction of the film:0.00≦Ici/Ico<0.60; Formula (I)Iam=I1+{(I3−I1)/(2θ3−2θ1)}×(2θ2−2θ1); Formula (II)Ic=I2−Iam; Formula (III)Ici=Ic11/Ic12; and Formula (IV)Ico={(Ic21/Ic22)+(Ic31/Ic32)}/2. Formula (V)
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