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Vacuum coating method of camera cover plate

A vacuum coating and head cover technology, which is applied in vacuum evaporation coating, sputtering coating, ion implantation coating, etc., can solve the problems of uneven coating, transmittance and wear resistance, etc. The effect of uniform plating, high transmittance, and good transmittance

Inactive Publication Date: 2015-04-08
江西昌佳鑫科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the current vacuum coating process often has uneven coating, which affects its transmittance and wear resistance.

Method used

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  • Vacuum coating method of camera cover plate
  • Vacuum coating method of camera cover plate

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] (1) First, polish the substrate (strengthened glass) of the cover plate to a circular substrate with a diameter of 10 mm and a thickness of 0.5 mm;

[0023] (2) Then print the substrate with ink (IR ink, mainly using conventional screen printing process, such as the screen ink provided by Seiko Ink (Sihui) Co., Ltd. of Japan Seiko Ink Co., Ltd. in China, such as HFGV2 / 3 ), and then cured at 150°C for 30 minutes;

[0024] (3) The cured substrate is placed in an ethanol solution with a volume concentration of 35% for cleaning to remove surface ups and downs;

[0025] (4) Dry the cleaned substrate, and then place it in a vacuum coating machine for vacuum coating. The upper and lower sides of the vacuum coated substrate are sequentially coated with a titanium pentoxide layer and a silicon dioxide layer on the basis of the substrate. , a titanium pentoxide layer, a silicon dioxide layer; the thicknesses of the above coatings are successively 28 nm for a titanium pentoxide l...

Embodiment 2

[0031] The preparation steps are the same as in Example 1, and the outermost layer of the camera cover installed on the side away from the camera is sprayed with an AF waterproof film layer with a thickness of 12nm, thereby improving the waterproof performance of the entire cover.

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Abstract

The invention discloses a vacuum coating method of a camera cover plate. The method comprises the following steps: polishing, printing, curing and cleaning a substrate; placing in a vacuum coating machine for coating, and sequentially coating a trititanium pentoxide layer, a silicon dioxide layer, a trititanium pentoxide layer and a silicon dioxide layer up or down; a coating chamber having a vacuum degree of 3-5*10<3>Pa, when heating to 145-155 DEG C and the vacuum degree being 1.5-2.5Pa, adjusting the vacuum degree to 1-1.3*10<-1>Pa, turning on an ion source for inflating, an ion source filament having current of 20-23A and voltage of 20-22V, the discharge current being 2-4A, the discharge voltage being 145-155V, the inflation time being 4-6min, and turning off; when the vacuum degree reaches 1.4-1.6*10<-2>Pa, filling oxygen until the vacuum degree reaches 2.5-3.5*10<-2>pa, automatically coating, taking out the substrate after coating is completed, and cooling. The vacuum coating method provided by the invention has the advantages of high coating uniformity and transmittance and wear resistance.

Description

technical field [0001] The invention relates to the technical field of camera cover plate processing, in particular to a vacuum coating method for a camera cover plate. Background technique [0002] The pixels of the mobile phone camera in the prior art are getting higher and higher, and the definition and transmittance of the cover plate on it are required to be improved accordingly; in order to achieve the above effects, different coatings are often plated on the cover plate by vacuum coating process , in order to meet the requirements of clarity, while taking into account the effects of wear resistance and high transmittance. However, the current vacuum coating process often has uneven coating, which affects its transmittance and wear resistance. Contents of the invention [0003] The invention aims at the above-mentioned shortcomings of the prior art, and provides a vacuum coating method for a camera cover plate with uniform coating, high transmittance and wear resist...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C23C14/08C23C14/10C23C14/54
Inventor 林国华
Owner 江西昌佳鑫科技有限公司