Method for preparing cellphone screen scratch-resistant aluminum oxide coating by ion beam dual-filtering deposition technique

A technology, magnetic filtration technology, applied in the field of vacuum coating, which can solve the problem of not being able to be put into the market

Active Publication Date: 2016-07-13
BEIJING NORMAL UNIVERSITY
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, many shortcomings of sapphire prevent it from being put into the market in a short time.

Method used

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  • Method for preparing cellphone screen scratch-resistant aluminum oxide coating by ion beam dual-filtering deposition technique
  • Method for preparing cellphone screen scratch-resistant aluminum oxide coating by ion beam dual-filtering deposition technique
  • Method for preparing cellphone screen scratch-resistant aluminum oxide coating by ion beam dual-filtering deposition technique

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Embodiment Construction

[0027] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.

[0028] It should be noted that, in the case of no conflict, the embodiments of the present invention and the features in the embodiments can be combined with each other.

[0029] Below in conjunction with accompanying drawing, each embodiment of the present invention is described further:

[0030] Compared with other preparation methods, cathode magnetic filtration vacuum arc deposition can significantly reduce the preparation difficulty and control cost, because i...

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Abstract

The invention discloses a method for depositing Al2O3 film on glass and is applicable to cellphone screen surface coating, wherein a technique for preparing Al2O3 film by magnetically filtered plasma deposition is particularly related.The Al2O3 film structurally comprises an ion injection pinning layer and an Al2O3 film layer.The invention is intended to prepare high-cohesive Al2O3 film by combining ion injection technique, magnetic filtration technique and cathodic arc deposition technique and optimize the thickness, hardness, wear resistance, corrosion resistance and light transmittance of Al2O3 by controlling arc current intensity, bend magnetic field intensity and oxygen intake in the deposition process so as to prepare high-quality Al2O3 film, replacing a sapphire cellphone screen.Dual-magnetic filtering plasma deposition equipment is used herein, the equipment is simple to operate, and the method is mature, is available for batch production and is suitable for application in electronic product screen protection.

Description

technical field [0001] The invention relates to the technical field of vacuum coating, in particular to a method for depositing an aluminum oxide film on glass and a coating on the surface of a mobile phone screen. Background technique [0002] Mobile phone screen materials have gone through a long development process. So far, Gorilla Glass (Gorilla Glass), which is used by most mainstream smart touch screen mobile phones, is about to develop into the fourth generation. [0003] The choice of mobile phone screen material is mainly based on the hardness, light transmittance, toughness and salt corrosion of the material. In the past two years, certain characteristics of sapphire materials have attracted widespread attention in the industry. As we all know, diamond is the hardest substance in nature. The Mohs hardness scale gives it a rating of 10. By measuring the degree of scratches of different minerals, the Mohs hardness scale will give a rating of 1-10, and 10 is the hard...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C23C14/08C23C14/48C23C14/32
CPCC23C14/0021C23C14/081C23C14/325C23C14/48C23C28/322C23C28/34
Inventor 廖斌欧阳晓平罗军张旭吴先映王宇东
Owner BEIJING NORMAL UNIVERSITY
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