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Wire grid polarizer and method for manufacturing the wire grid polarizer, and phase difference film and liquid crystal display element using the wire grid polarizer

A manufacturing method and a technology for polarizers, which are applied in polarizing elements, optical elements, nonlinear optics, etc., can solve problems such as complex processes and achieve the effect of short grating period

Inactive Publication Date: 2009-09-30
NIPPON OIL CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] However, the manufacturing method of such a wire-grid polarizing plate described in Document 2 requires the etching process to be performed at least twice, so the process is complicated and there is a problem in terms of mass productivity.

Method used

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  • Wire grid polarizer and method for manufacturing the wire grid polarizer, and phase difference film and liquid crystal display element using the wire grid polarizer
  • Wire grid polarizer and method for manufacturing the wire grid polarizer, and phase difference film and liquid crystal display element using the wire grid polarizer
  • Wire grid polarizer and method for manufacturing the wire grid polarizer, and phase difference film and liquid crystal display element using the wire grid polarizer

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0051] First, prepare a quartz mold (manufactured by NTT-AT Nanofabrication, product name "NIM-80L RESO"), ultraviolet curable resin (manufactured by Toagosei Co., product name "UV-3400"), and a support film (manufactured by Fujifilm, product name "Cellulose triacetate (TAC) film", film thickness: 80 μm).

[0052] Then, a few drops of ultraviolet curable resin were dropped on a quartz mold formed with grating-shaped recesses having a grating period of 200 nm and a line width of 100 nm, covered with a support film, and then ultraviolet cured by rubbing on the support film with a hand roller. The resin spreads evenly on the quartz mold. Then, by irradiating 600mJ / cm on the side of the UV curable resin close to the support film 2 The ultraviolet rays are used to cure the ultraviolet curable resin, so that the coating film of the ultraviolet curable resin formed with the concave portion having a grating shape is bonded to the support film, thereby forming a resin film having a co...

Embodiment 2

[0056] A resin film and a wire grid polarizer were obtained in the same manner as in Example 1, except that an ultraviolet curable resin was dropped on a quartz mold formed with grating-shaped recesses having a grating period of 400 nm and a line width of 200 nm. In addition, the obtained resin film was formed with grating-shaped recesses having a grating period of 400 nm and a line width of 200 nm.

[0057] Scanning electron micrographs of the obtained wire grid polarizers are in figure 2 displayed in . Such as figure 2 As shown, it was proved that a wire grid polarizer having a metal grating with a grating period of 400 nm and a line width of 200 nm was obtained.

Embodiment 3

[0059] A resin film and a wire grid polarizer were obtained in the same manner as in Example 1, except that an ultraviolet curable resin was dropped on a quartz mold formed with grating-shaped recesses having a grating period of 600 nm and a line width of 300 nm. In addition, the obtained resin film was formed with grating-shaped recesses having a grating period of 600 nm and a line width of 300 nm.

[0060] Scanning electron micrographs of the obtained wire grid polarizers are in image 3 displayed in . Such as image 3 As shown, it was proved that a wire grid polarizer having a metal grating with a grating period of 600 nm and a line width of 300 nm was obtained.

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Abstract

This invention provides a method for manufacturing a wire grid polarizer, comprising the steps of providing a resin film having a recess part with a lattice shape of a submicron size and having a visible light transmittance of not less than 80%, filling an electroconductive nano material, which has an average diameter of not more than the half of the average line width of the recess part, into the recess part, and removing the electroconductive nano material which remains unfilled in the recess part.

Description

technical field [0001] The present invention relates to a wire grid polarizer, a method for producing the same, and a retardation film and a liquid crystal display element using the wire grid polarizer. Background technique [0002] As polarizers in the optical field, polarizing laminates, polarizing prisms, Pile of Plates, and wire grid polarizers are used. And, among these polarizers, a wire grid type polarizer is a polarizer that reflects polarized light parallel to the grating and reflects polarized light perpendicular to the grating using a metal grating whose interval is much shorter than the wavelength of light. The polarized light is transmitted, because it can be made into a film, so it has many uses, and, compared with the polarizing layer plate, because it can obtain a high extinction ratio and has high durability, it is used as a polarizer for a projection optical system And is widely used. [0003] In addition, such a wire grid polarizer has been mainly used a...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G02B5/30G02F1/1335
CPCG02F2001/133548G02F1/133536G02B2207/101G02B5/3058B82Y20/00G02F1/133548Y10T29/49
Inventor 西村涼须崎吾郎
Owner NIPPON OIL CO LTD