DISPLAY AND VIEW ANGLE CONTROL ELEMENT EMPLOYED THEREIN

摘要

A display which can be shaded such that the display on an image display cannot be viewed from a visual angle of wide range in the oblique direction, and a view angle control element employed therein. In a liquid crystal panel (2) for controlling visual angle, when light of predetermined wavelength region enters with a polar angle fH or above under a state of narrow visual angle, a liquid crystal cell (21) provides a phase difference so that the light is blocked not to pass through a polarizing plate (22). In a liquid crystal panel (3) for controlling visual angle, a liquid crystal cell (31) provides a phase difference to the light entered with a polar angle fL or above out of light that passed through the polarizing plate (22), under a state of narrow visual angle, so that the light is blocked not to pass through a polarizing plate (32). Consequently, the light with a polar angle fL or above is shaded as a whole and a wide range narrow visual angle state is achieved.