Patent ID: 11867938
Assignee: DEXERIALS CORPORATION
Field: Materials, metallurgy (Chemistry)
Classification: CPC C  G | IPC C  G

Claim 0:
1. A polarizing plate having a wire grid structure comprising:
a transparent substrate;
a first antireflection layer laminated on a first surface of the transparent substrate;
a plurality of protrusions protruding from the first antireflection layer;
a second antireflection layer laminated on a second surface opposite to the first surface;
wherein the plurality of protrusions are periodically arranged at a pitch shorter than a wavelength of light in a use band,
each of the protrusions extends in in a first direction and includes a reflective layer, a dielectric layer, and an absorption layer in order from the first direction,
both the first antireflection layer and the second antireflection layer have high refractive index layers and low refractive index layers that are alternately laminated, and
a layer of the first antireflection layer farthest from the transparent substrate is an outermost layer, and a non-overlapped region that does not overlap with the plurality of protrusions of the outermost layer is recessed toward the transparent substrate from an overlapped region that overlaps the plurality of protrusions of the outermost layer.