| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide an optical compensation film capable of preventing contrast reduction and color change of an image. <P>SOLUTION: In the optical compensation film, both of a retardation value Re in a film plane and a retardation value Rth in a thickness direction are reduced by stretching, wherein the Re and Rth satisfy relations (1) to (2) upon unstretching, and the Re and Rth satisfy relations (3) to (6) (preferably (3) to (8)) after stretching. The optical compensation film integral type polarizing plate and the liquid crystal display device uses the optical compensation film. (1) Re=0 to 30 nm, (2) Rth=-50 to 50 nm, (3) Re=-500 to 0 nm, (4) Rth=-800 to 0 nm, (5) Re(n)-Re(0)<0, (6) Rth(n)-Rth(0)<0, (7) ¾Re(n)/d(n)¾≥0.001, (8) ¾Rth(n)/d(n)¾≥0.001. <P>COPYRIGHT: (C)2007,JPO&INPIT |
