COMPOSITE LIGHT CONTROL PLATE

摘要

PROBLEM TO BE SOLVED: To provide a composite light control plate that can suppress luminance irregularity.

SOLUTION: In the composite light control plate, a convex contour shape of a first light control plate is expressed as z1(x) which satisfies an expression (1-1): 0.95×Z10(x)≤z1(x)≤1.05×Z10(x) äZ10(x) is defined by an expression (1-2)}. Also, a convex contour shape of a second light control plate is expressed as z2(x) which satisfies an expression (2-1): 0.95×Z20(x)≤z2(x)≤1.05×Z20(x) äZ20(x) is defined by the same way as the expression (1-1)}.

COPYRIGHT: (C)2011,JPO&INPIT