| 摘要 |
<p>PURPOSE: An optical film manufacturing method is provided not to use a specific compound such as a retardation increasing agent. CONSTITUTION: A single layer dope flow (80) is overlapped with a Y direction on an XY plane and is compressed to reduce the thickness of the dope flow. A first layer-shaped dope flow (81) compressed to a thickness direction passes through a layer forming process. The first layer-shaped dope flow is converted into a second layer-shaped dope flow (82) by compressing the flow thickness of each layer. The second layer-shaped dope flow is converted into a third layer-shaped dope flow (83) by compressing the flow thickness of each layer.</p> |
