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Sunlight-visible Sapphire cover plate coating

A sapphire, cover technology

Inactive Publication Date: 2017-01-11
王卫国
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

It can effectively solve the problems of large weight and high refractive index, but high reflectivity still plagues mobile phone manufacturers

Method used

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  • Sunlight-visible Sapphire cover plate coating
  • Sunlight-visible Sapphire cover plate coating

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0016] Coated on the sapphire substrate, the Si with a thickness of 16.4 nanometers is arranged sequentially from the inside to the outside 3 N 4 layer, 23.3 nm thick SiO 2 layer, with a thickness of 71.1 nm Si 3 N 4 layer, 7.4 nm thick SiO 2 layer, a thickness of 31.8 nm Si 3 N 4 layer, 90 nm thick SiO 2 Floor.

[0017] like figure 2 As shown, the reflectance spectrum obtained in this embodiment.

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Abstract

Disclosed is a sunlight-visible sapphire cover plate coating. A coating is applied to a sapphire substrate. Thus, the reflectivity of visible light is reduced, the coating is clearly visible under the sun, eye fatigue is eased, and the quality of people's life is improved.

Description

technical field [0001] The invention relates to the field of optical coatings, specifically reducing the reflectivity of the sapphire surface through coatings to achieve clear visibility under sunlight. Background technique [0002] Natural sapphire is well known as a kind of jewelry. With the development of science and technology, synthetic sapphire, as an industrial product, is gradually entering people's lives. In fact, it is the crystallization form of alumina, and its notable feature is its high hardness. , It is also widely used, such as: the surface of high-end watches, the transparent armor of military vehicles, the lens, fingerprint sensor and screen of high-end mobile phones. [0003] While sapphire-based phone screens should be better able to withstand bumps, drops, and scratches, sapphire-covered displays have some pretty big downsides: Sapphire weighs more per cubic centimeter (3.98 grams) than Corning Gorilla Glass ( 2.54 grams) high, because the refractive in...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G02B1/115
Inventor 不公告发明人
Owner 王卫国