Title:
WIRE-GRID POLARIZER, POLARIZING PLATE, AND VIDEO DISPLAY DEVICE
Document Type and Number:
WIPO Patent Application WO/2020/071257
Kind Code:
A1
Abstract:
This wire-grid polarizer has, on the surface thereof, a light-transmissive substrate on which parallel protruding ridges are formed, and a metal layer covering a side surface of each protruding ridge, wherein, in a cross-section perpendicular to the lengthwise direction of the protruding ridges, the height of each protruding ridge from the bottom to the top thereof is 80-125 nm, and the ratio Wh/Wm is 2.2-3.0 and the ratio Wb/Wm is 1.5-2.1, where Wm is the minimum thickness of the metal layer, Wb is the maximum thickness of the metal layer further toward the bottom in comparison to a location at one-half the height of the corresponding protruding ridge, and Wh is the maximum thickness of the metal layer present further on the opposite side from the bottom side in comparison to the top of the corresponding protruding ridge.
Inventors:
IKEDA YASUHIRO (JP)
NISHIZAKA TAKUMA (JP)
SEKIKAWA KENTA (JP)
ISHIDO SO (JP)
NISHIZAKA TAKUMA (JP)
SEKIKAWA KENTA (JP)
ISHIDO SO (JP)
Application Number:
PCT/JP2019/038053
Publication Date:
April 09, 2020
Filing Date:
September 26, 2019
Export Citation:
Assignee:
AGC INC (JP)
International Classes:
G02B5/30; G02F1/1335; G09F9/30
Domestic Patent References:
| WO2012115059A1 | 2012-08-30 |
Foreign References:
| JP2012108468A | 2012-06-07 | |||
| JP2005037900A | 2005-02-10 | |||
| JP2012118438A | 2012-06-21 | |||
| JP2005172955A | 2005-06-30 | |||
| JP2018517940A | 2018-07-05 |
Attorney, Agent or Firm:
EIKOH PATENT FIRM, P.C. (JP)
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