Optical film, retarder film, and method for manufacturing same
AssigneeZeon Corporation
InventorsKazuki KUMAZAWA, Hironari SUDEJI
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Abstract
An optical film formed of a resin C including a copolymer P containing a polymerization unit A and a polymerization unit B, wherein the optical film includes a phase separation structure that expresses structural birefringence, the phase separation structure includes a phase containing as a main component the polymerization unit A and a phase containing as a main component the polymerization unit B, and a value of Rth/d calculated from the thickness-direction retardation Rth (nm) and thickness d (nm) is 2.5×10-3 or more.
Claims20
An optical film formed of a resin C including a copolymer P containing a polymerization unit A and a polymerization unit B, wherein
- the optical film includes a phase separation structure that expresses structural birefringence,
- the phase separation structure includes a phase containing as a main component the polymerization unit A and a phase containing as a main component the polymerization unit B, and
- a value of Rth/d calculated from the thickness-direction retardation Rth (nm) and thickness d (nm) is 2.5×10−3 or more.
Dependencies are inferred from the claim text.