| 摘要 |
The invention relates to an optical compensation film for IPS or FFS-mode liquid crystal display devices, having the tilt angleβ[°] not equal to zero,β[°] being defined asφgiving the minimum value of retardation R[φ] which is retardation measured for incident light coming in a direction tilted byφ° from a normal line relative to the film-plane, the direction being in a plane including the direction perpendicular to the in-plane slow axis thereof and the normal line; and having retardation along the thickness direction at a wavelength of 550 nm, Rth(550), not equal to zero. |
