VIEWING ANGLE CONTROL SHEET AND DISPLAY DEVICE

摘要

PROBLEM TO BE SOLVED: To provide a viewing angle control sheet wherein contrast is enhanced by suppressing reduction in contrast of an image due to external light and suppressing occurrence of a ghost, reduction of luminance of a screen is suppressed by effectively utilizing diffusion light from a video source and a viewing angle is controlled in a prescribed range.

SOLUTION: The viewing angle control sheet is provided with a viewing angle control part 12 provided with light shielding parts 15 and a light non-shielding part 14. The light shielding parts are formed in a direction from the light receiving surface of the viewing angle control part to a viewer side and a plurality of the light shielding parts are disposed while being separated from one another in a light receiving surface direction. A plurality of light absorbing layers 21, 22,... are formed in each light shielding part at a nearly equal distance from one another in the direction from the light receiving surface to the viewer side.

COPYRIGHT: (C)2007,JPO&INPIT