摘要 |
<p>The present disclosure provides a light control film that is capable of transmitting light, or allowing a viewer to observe information, only within a viewing region centered around the normal (perpendicular line) to a surface. The light control film generally blocks information or light outside of this viewing region, and provides security in all directions including right-and-left and up-and-down of the film. The light control film includes a plurality of light-transmissive cavities that are surrounded by a light absorbing material, such that each of the plurality of cavities is optically isolated from adjacent cavities. Each of the light-transmissive cavities effectively block light which enters the cavity outside of a viewing (that is, cutoff) angle.</p> |
申请人 |
3M INNOVATIVE PROPERTIES COMPANY |
发明人 |
HALVERSON, KURT J.;KENNEY, RAYMOND J.;LUECK, BRIAN W.;MEYER, KENNETH A. P.;TAPIO, SCOTT M.;LAUTERS, MICHAEL E.;BENSON, OLESTER, JR.;GAIDES, GARY E. |