A method for preparing gradient color film by magnetron sputtering machine

A sputtering machine and color technology, used in sputtering coating, metal material coating process, vacuum evaporation coating and other directions, can solve the problems of less gradient color forms, inconvenient production, etc., to achieve a stable refractive index and meet the needs of the market Variety of effects with stable optical performance

Active Publication Date: 2020-12-01
SHENZHEN THREE BEAM COATING TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] However, the preparation of the gradient color disclosed above needs to block the first area and the second area separately, and also requires center symmetry, and the gradient color forms are relatively few, making it inconvenient

Method used

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  • A method for preparing gradient color film by magnetron sputtering machine
  • A method for preparing gradient color film by magnetron sputtering machine
  • A method for preparing gradient color film by magnetron sputtering machine

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0108] The sputtering machine used in this embodiment is a SWOS-2000H large magnetron sputtering machine.

[0109] First, place the cleaned glass cover plate, that is, the workpiece 3, on the workpiece frame 4 of the sputtering machine, wherein the placement schematic diagram of the high refractive index target, the low refractive index target, the workpiece 3, and the shielding plate 1 is as follows Figure 3-5 As shown, the distance between the shielding plate 1 and the high-refractive index target and the low-refractive index target is 2 cm, and the distance between the shielding plate 1 and the workpiece 3 is 13 cm. The shapes of the 2 groups of baffles 1 are all adopted Figure 7 The shapes shown are respectively placed between the high-refractive-index target and the low-refractive-index target and the workpiece 3 . Close the door and pump to 5.0×10 -3 Pa, the workpiece 3 is ion-cleaned for 10 minutes with an anode layer ion source before coating.

[0110] After the i...

Embodiment 2

[0117] First, the cleaned glass cover plate, that is, the workpiece 3, is placed on the workpiece frame 4 of the sputtering machine, wherein the high extinction coefficient target and the glass substrate are placed such as Figure 7 For the baffle 1 shown, the distance between the baffle 1 and the high extinction coefficient target is 4cm, the distance between the baffle 1 and the workpiece 3 is 11cm, and there is no baffle 1 between the other targets 2 and the workpiece 3 . The shape of the baffle plate 1 adopts Figure 7 Shape shown, pumped with door closed to 5.0 x 10 -3 Pa, the workpiece 3 is ion-cleaned for 10 minutes with an anode layer ion source before coating.

[0118] After the ion cleaning of the anode layer is completed, the film coating is started. First, the base layer is plated on the workpiece 3, followed by the first high refractive index film layer, then the first low refractive index film layer, and then the second high refractive index film layer. The fi...

Embodiment 3

[0122] Firstly, the cleaned glass cover plate, i.e. the workpiece 3, is placed on the workpiece frame 4 of the sputtering machine, wherein the low refractive index target and the workpiece 3 are placed between the Figure 8 For the baffle 1 shown, the distance between the baffle 1 and the low-refractive index target is 5 cm, the distance between the baffle 1 and the workpiece 3 is 10 cm, and no baffle is set between the other targets 2 and the workpiece 3 1. The shape of the baffle plate 1 adopts Figure 8 Shape shown, pumped with door closed to 5.0 x 10 -3 Pa, the workpiece 3 is ion-cleaned for 10 minutes with an anode layer ion source before coating.

[0123] After the ion cleaning of the anode layer is completed, the film coating is started. First, the base layer is plated on the workpiece 3, followed by the first high refractive index film layer, then the first low refractive index film layer, and then the second high refractive index film layer. film layer, and finally...

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Abstract

The invention discloses a method for preparing a graduated color film through a magnetron sputtering machine. The method comprises the following steps that S1, an optical film system is designed; S2,a baffle is designed, and the shape of the baffle is designed according to thickness change of an optical thin film structure simulated by software; S3, vacuum coating is conducted; and S4, color andoptical performance examination is conducted, the color LAB value, visible light reflectivity curve and visible light transmittance curve of a product obtained after vacuum coating are detected, if the test result is qualified, mass production preparation can be made, and if the test result is unqualified, operation returns to the step S1. A transition area of a graduated color film prepared withthe method is natural in gradual color change, the product color is easy to adjust, and graduated color films of different colors and visual effects can be prepared according to user preparations. Compared with electric beam evaporation deposition, a film layer prepared with the magnetron sputtering machine is compact in structure, the refractive index is stable, the film layer is more stable in optical performance, and thus color stability is better.

Description

technical field [0001] The invention belongs to the technical field of vacuum coating, and in particular relates to a method for preparing gradient color films by a magnetron sputtering machine applied to cover plates and back covers of electronic products such as mobile phones, tablet computers, and smart watches. Background technique [0002] With the advent of the fifth generation mobile communication technology (5G), more and more mobile phone manufacturers use glass instead of metal as the back cover of mobile phones. Glass is generally colorless and transparent, and screen printing ink is often used to color it when used as a mobile phone cover. But only screen printing ink, the color gloss is poor, and there is no metallic texture of the metal back cover. With the diversification of market demand, the glass cover plate not only plays a protective role, but also has an increasingly prominent function of beautifying decoration. In order to increase the beauty of the m...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C23C14/35C23C14/04C23C14/54C23C14/08C23C14/10
CPCC23C14/0015C23C14/0036C23C14/044C23C14/083C23C14/10C23C14/35C23C14/352C23C14/542
Inventor 郭杏元汤珅冯红涛战永刚
Owner SHENZHEN THREE BEAM COATING TECH CO LTD
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