Moxtek, Inc.

Moxek, Inc.

Mathew Free

R Stewart Nielson

Bradley R Williams

Ted Wangensteen

Shaun Patrick Ogden

Fred Lane

Matthew R Linford

Anubhav Diwan

Matthew C George

A wire grid polarizer (WGP) can be durable and have high performance. The WGP can comprise an array of wireson a substrate. An overcoat layercan be located at distal ends of the array of wiresand can span channelsbetween the wires. A conformal-coat layercan coat sidesand distal endsof the wiresbetween the wiresand the overcoat layer. The overcoat layer can comprise aluminum oxide. An antireflection layercan be located over the overcoat layer

Overcoat wire grid polarizer having overcoat layer spanning air-filled channels

A wire grid polarizer (WGP) can include a heat-dissipation layer. The heat-dissipation layer can enable the WGP to be able to endure high temperatures. The heat-dissipation layer can be located (a) over an array of wires and farther from a transparent substrate than the array of wires; or (b) between the array of wires and the transparent substrate. The heat-dissipation layer can be a continuous layer. The heat-dissipation layer can have a high electrical resistivity and a high coefficient of thermal conductivity.

Wire grid polarizer heat sink having specified reflective layer, absorptive layer, and heat-dissipation layer

A wire grid polarizer and method of making a wire grid polarizer can protect delicate wires of the wire grid polarizer from damage. The wire grid polarizer can include a protective-layer located on an array of wires. The array of wires can further be protected by a chemical coating on an inside surface of the air-filled channels, closed ends of the air-filled channels, damaged wires of the array of wires in a line parallel to an edge of the wire grid polarizer, or combinations thereof. The method can include (i) providing the wire grid polarizer, (ii) applying the protective-layer, by physical vapor deposition or chemical vapor deposition but excluding atomic layer deposition, onto the array of wires, (iii) cutting the wire grid polarizer wafer into multiple wire grid polarizer parts, then (iv) protecting the array of wires.

Wire grid polarizer with protected wires

Overcoat wire grid polarizer having conformal coat layer with oxidation barrier and moisture barrier

The invention includes a selectively-absorptive wire grid polarizer (WGP) comprising an array of parallel, elongated rods located over a surface of a transparent substrate with gaps between adjacent rods. Each of the rods can include a reflective wire and two absorptive ribs. The reflective wire can be sandwiched between the two absorptive ribs and the substrate or the two absorptive ribs can be sandwiched between the reflective wire and the substrate. Each of the two absorptive ribs can comprise a different material. Use of multiple absorptive ribs within each rod can increase the effective useful bandwidth of light for selectively absorbing one polarization.

Broadband, selectively-absorptive wire grid polarizer

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Orem, UT, United States of America

Mathew Free