| 摘要 |
PURPOSE: A reflective polarizer distributing polymers is provided to achieve an excellent optical property even though a small amount of birefringent polymers are included. CONSTITUTION: Skin layers (186,187) are formed on both sides of a core layer (180). The core layer is divided into two groups (A,B). An average optical thickness of plate type polymers (181,182) which are first elements included in one of the groups is different from an average optical thickness of plate type polymers (183,184) which are first elements included in the other group. |
