Patent ID: 9726929
Date: 2017-08-08
CPC Classifications: G02B,G02F,G03B

Claim:
1. A wire grid polarizing plate comprising: a substrate having a concavo-convex structure extending in a particular direction on a surface thereof; and a conductive material provided to be distributed on one side surface of convex portions of the concavo-convex structure, wherein in a cross-sectional view in a perpendicular direction to an extension direction of the concavo-convex structure, a pitch P wherein in the cross-sectional view in the perpendicular direction to the extension direction of the concavo-convex structure, with respect to the convex-portion height H that is a difference in height between the highest portion of the convex portions and the lowest portion of the concave portions, when a position of 9/10H is a first height position, and a position of 1/10H is a second height position, a width of the convex portions in the first height position ranges from 0.5 times to 1.0 times the width of the convex portions in the second height position, and a value of a half width of the convex portions of the concavo-convex structure ranges from 0.05 times to 0.5 times the pitch P wherein the conductive material extends from a lowest portion to a highest portion of the concavo-convex structure, and at least a part of the conductive material is provided higher than the highest portion of the convex portions of the concavo-convex structure.