Retardation film, polarizing plate, and liquid crystal display
AssigneeFUJIFILM Corporation
InventorsJun TAKEDA, Shunya KATOH, Michio NAGAI, Yoji ITO
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AssigneeFUJIFILM Corporation
InventorsJun TAKEDA, Shunya KATOH, Michio NAGAI, Yoji ITO
Estimating the term…
A retardation film includes a first optically anisotropic layer having liquid crystal compounds fixed in a homogeneously aligned state and a leveling agent, and having an order parameter of 0.75 to 0.95 and a thickness of 0.3 to 3.0 μm; an intermediate layer including a resin having a solubility parameter SP value of 21.5 to 24.7, calculated by Hoy's method, the intermediate layer having a thickness of 3.0 μm or less; and a second optically anisotropic layer having liquid crystal compounds fixed in a homeotropically aligned state, and having an order parameter OP of 0.6 to 0.95 and a thickness of 0.3 to 3.0 μm, wherein OP is represented by the following equation; OP=(A∥−A⊥)/(2A⊥+A∥) where A∥ is absorbance of the liquid crystal compounds for light polarized parallel to an alignment direction, and A⊥ is absorbance of the liquid crystal compounds for light polarized perpendicular to the alignment direction.
A retardation film comprising, in sequence;
Dependencies are inferred from the claim text.