US 12,253,704 B2
Wire grid polarizer with slanted support-ribs
R. Stewart Nielson, Pleasant Grove, UT (US); Bradley R. Williams, Pocatello, ID (US); and Bob West, Orem, UT (US)
Assigned to Moxtek, Inc., Orem, UT (US)
Filed by Moxtek, Inc., Orem, UT (US)
Filed on Aug. 9, 2023, as Appl. No. 18/446,981.
Application 18/446,981 is a continuation of application No. 17/869,974, filed on Jul. 21, 2022, granted, now 11,762,140.
Application 17/869,974 is a continuation of application No. 16/992,391, filed on Aug. 13, 2020, granted, now 11,435,513, issued on Sep. 6, 2022.
Claims priority of provisional application 62/949,568, filed on Dec. 18, 2019.
Claims priority of provisional application 62/894,484, filed on Aug. 30, 2019.
Claims priority of provisional application 62/892,135, filed on Aug. 27, 2019.
Prior Publication US 2023/0384501 A1, Nov. 30, 2023
Int. Cl. G02B 5/30 (2006.01); G02B 1/00 (2006.01); G02F 1/1335 (2006.01)
CPC G02B 5/3058 (2013.01) [G02B 1/002 (2013.01); G02B 5/3008 (2013.01); G02B 5/305 (2013.01); G02F 1/133548 (2021.01); C09K 2323/031 (2020.08)] 20 Claims
OG exemplary drawing
 
1. A method of making a wire grid polarizer (WGP), the method comprising:
applying an uncured layer on a face of a substrate;
imprinting a pattern of uncured support-ribs in the uncured layer, wherein 15°≤A92≤75°, where A92 is a smallest angle between a plane and the face of the substrate, the plane extending along a length of each support-rib through a center of the support-rib from a proximal end closest to the substrate to a distal end opposite the proximal end;
curing the uncured layer, including curing the uncured support-ribs into support-ribs that are solid and cured, and with each support rib having an upper-side facing away from the substrate;
depositing a cap on the upper-side and the distal end of each support-rib; and
depositing a wire on the upper-side and the distal end of each support-rib, each wire being separate from wires on adjacent support-ribs.