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Fine structure form and liquid-crystal display device comprising fine structure form

A liquid crystal display device and microstructure technology, which can be used in transportation and packaging, optics, instruments, etc., and can solve problems such as easy damage, reduced anti-reflection performance, and low scratch resistance

Inactive Publication Date: 2013-11-13
ASAHI GLASS CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In this anti-reflection article, since the protrusions are very fine, the protrusions have low scratch resistance and are easily damaged by physical contact, etc.
If the protrusion is damaged, the anti-reflection performance will decrease, so it is desired to develop a technology to suppress the damage

Method used

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  • Fine structure form and liquid-crystal display device comprising fine structure form
  • Fine structure form and liquid-crystal display device comprising fine structure form
  • Fine structure form and liquid-crystal display device comprising fine structure form

Examples

Experimental program
Comparison scheme
Effect test

no. 1 Embodiment approach

[0123] figure 1 It is a sectional view showing the first embodiment of the wire grid polarizer of the present invention. The wire grid polarizer 1 includes: a substrate having a flat light-transmitting substrate 10 and convex lines 50 formed on the light-transmitting substrate 10 parallel to each other at a predetermined pitch Pp below the wavelength of visible light. A plurality of metal thin wires 20 having a rectangular cross-sectional shape on the surface; an inorganic oxide layer 30 covering both sides of the ribs 50 with gaps formed in the grooves 14 between the ribs 50 and covered by the above-mentioned the flat portion 13 of the substrate between the top portion 52 sandwiched by the sides and the rib 50; and the fluorine-containing compound layer 32, which is formed by treating the entire surface of the inorganic oxide layer 30 with a fluorine-containing compound having A reactive group with respect to inorganic oxides.

[0124] In addition, in the first to third emb...

no. 2 Embodiment approach

[0138] Wire Grid Polarizer

[0139] figure 2 It is a cross-sectional view showing a second embodiment of the wire grid polarizer of the present invention. The wire-grid polarizer 2 includes: a substrate, which is parallel to each other through a plurality of ridges 50 having a rectangular cross-sectional shape via the flat part 13 of the groove 14 formed between the ridges 50, and has a wavelength below the wavelength of visible light. The predetermined pitch Pp is formed on the surface of the light-transmitting substrate 10; the inorganic oxide layer 30 covers both side surfaces of the ridges 50 with gaps formed in the grooves 14 between the ridges 50 and is covered by the above-mentioned the flat portion 13 of the substrate between the top portion 52 sandwiched by the sides and the rib 50; and the fluorine-containing compound layer 32, which is formed by treating the entire surface of the inorganic oxide layer 30 with a fluorine-containing compound having A reactive gro...

no. 3 Embodiment approach

[0160] Wire Grid Polarizer

[0161] Figure 4 It is a perspective view showing a third embodiment of the wire grid polarizer of the present invention. The wire grid polarizer 3 includes: a substrate formed by a plurality of convex lines 50 parallel to each other with a predetermined pitch Pp equal to or less than the wavelength of visible light via the flat portion 13 of the groove 14 formed between the convex lines 50 . Formed on the surface of the light-transmitting substrate 10; the inorganic oxide layer 30 covers the sides and tops 52 of the ribs 50 and between the ribs 50 in such a manner that gaps are formed in the grooves 14 between the ribs 50 and the fluorine-containing compound layer 32, which is formed by treating the entire surface of the inorganic oxide layer 30 with a fluorine-containing compound having a reactive group with respect to the inorganic oxide.

[0162] The wire grid polarizer 3 according to the third embodiment has a structure in which the ribs 5...

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Abstract

Provided are fine structure forms, such as a wire grid polarizing element, an anti-reflection material, etc., which have adequate resistance to abrasion and optical properties, and a liquid-crystal display device comprising the fine structure form. The present invention relates to a fine structure form, such as a wire grid polarizing element (1), comprising: a substrate wherein protrusions (50) are formed at a pitch less than or equal to a visible light wavelength on at least one face thereof; an inorganic oxide layer (30) which covers at least the topmost parts (52) of the protrusions (50); and a fluorine compound layer (32) which is formed by processing at least the obverse face of the inorganic oxide layer (30) with a fluorine compound having a group which reacts with the inorganic oxide. The inorganic oxide layer (30) with which the topmost parts (52) of the protrusions (50) are covered has a thickness (Ha) of 30nm or more and a ratio of the thickness (Ha) to the width (Dat) (Ha / Dat) of 1.0 or less. The present invention further relates to a liquid-crystal display device, further comprising the fine structure form.

Description

technical field [0001] The present invention relates to a fine-structure molded article such as a wire-grid polarizer, an antireflection article, and a liquid crystal display device having the fine-structure molded article. Background technique [0002] A wire grid is known as a polarizer (also referred to as a polarization element or a polarization separation element) that exhibits polarized light separation performance in the visible light region and is used in image display devices such as liquid crystal display devices, rear projection TVs, and front projectors. type polarizer. Also, antireflection articles such as antireflection films are known as members arranged on the surface of a display or the like of an image display device to prevent external light from being reflected on the surface of the display. [0003] A wire grid polarizer has a structure in which a plurality of thin metal wires are arranged parallel to each other on a light-transmitting substrate. When ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G02B5/30B32B9/00G02B1/11G02F1/1335
CPCG02F2001/133548G02F1/133528G02B1/118G02B5/3058Y10T428/24628C09K2323/051G02F1/133548G02B5/30B32B9/00G02F1/1335
Inventor 冈田伸治秋田阳介坂本宽海田由里子
Owner ASAHI GLASS CO LTD