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Glass plate having thin film formed thereon

A glass plate, film technology, applied in the direction of coating, etc., can solve problems such as reflection color change

Inactive Publication Date: 2009-02-11
NIPPON SHEET GLASS CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0006] However, if the thickness of the film is 300nm or more, there will be problems in appearance, for example, the reflection color of the surface side of the glass plate on which the film is formed varies with the angle of the glass plate, even with the angle of the glass plate. At the same time, the difference in the thickness of the film formed on the surface of the glass plate (for example, 30nm) will also cause a change in the reflected color

Method used

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  • Glass plate having thin film formed thereon
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  • Glass plate having thin film formed thereon

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Embodiment Construction

[0028] In order to achieve the object of the invention, the present inventors conducted painstaking research and found that, in a glass plate on which a thin film is formed, a thin film is formed on at least one surface of the glass plate, if the thin film is composed of infrared blocking particles and carbon dioxide 300 to 3000nm thick film of silicon, and the molar ratio of the content of infrared blocking particles to the content of silicon dioxide is 0.6:9.4 to 2.3:7.7, the refractive index of the film for light with a wavelength of 550nm can be 1.48 to 1.57, by Changes in reflected color caused by changes in the angle to the surface of the glass plate on which the film is formed can be reduced, and even if an uneven film with a difference in thickness is formed on the surface of the glass plate, the change in reflected color can also be reduced .

[0029] The present invention has been made based on the results of the above studies.

[0030] figure 1 A schematic cross-s...

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Abstract

This invention provides a glass plate for thin-film formation that, in such a state that a thin film is formed on the surface of the glass plate, can reduce a change in reflected color upon a change in an angle to the glass plate surface with a thin film formed thereon and, at the same time, can reduce a change in reflected color even when an uneven thin film with portions having different thickness is formed on the glass plate surface. The thin film-formed glass plate (10) comprises a glass plate (11) having a glass plate surface (a bottom face (11a) and a top face (11b)) and a thin film (an infrared-cut film) (12). An infrared-cut film (12) is provided on the glass plate (11) on its top face (11b). The thickness of the infrared-cut film (12) is 300 to 3000 nm. The molar content ratio between ITO fine particles and silica in the infrared-cut film (12) is 0.6 : 9.4 to 2.3 : 7.7.

Description

technical field [0001] The present invention relates to a glass plate on which a thin film is formed, and more particularly to a glass plate on which a thin film is formed on the surface of the glass plate to a thickness of 300 to 3000 nm. Background technique [0002] In recent years, it has been known that a film containing infrared absorbing particles formed on the surface of a glass plate has the property of blocking (shielding) infrared rays (for example, see the documents of PCT International Patent Publication No. 2004 / 011381 and PCT International Patent Publication No. 2005 / 095298 document). [0003] For the infrared shielding glass in the document of PCT International Patent Publication No. 2004 / 011381, ITO powder containing a fluorine component having high temperature resistance is used so that the sol-gel process can be performed at a high temperature of 350°C or higher conduct. The fluorine component is introduced into the infrared cut film while thermally prot...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C03C17/25
CPCC03C2217/231C03C2217/29C03C17/366C03C2217/475C03C17/009C03C2217/948C03C2217/476C03C2218/36C03C2217/213C03C17/007
Inventor 室町隆小川永史吉田守岩井信树
Owner NIPPON SHEET GLASS CO LTD
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