CN214004767U - Colored non-conductive vacuum plating film for mobile phone cover plate - Google Patents
Colored non-conductive vacuum plating film for mobile phone cover plate Download PDFInfo
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- CN214004767U CN214004767U CN202022930419.0U CN202022930419U CN214004767U CN 214004767 U CN214004767 U CN 214004767U CN 202022930419 U CN202022930419 U CN 202022930419U CN 214004767 U CN214004767 U CN 214004767U
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Abstract
The utility model discloses a color non-conductive vacuum plating film for a mobile phone cover plate, which comprises a glass substrate, wherein a primer layer, a buffer layer, an NCVM layer, a color layer and a finish paint layer are sequentially laminated on the top surface of the glass substrate from bottom to top; the buffer layer is a single crystal silicon layer, a nitride layer, an oxynitride layer or an oxide layer; the color layer is a composite film layer formed by alternately laminating a first refraction film layer and a second refraction film layer, and the number of the color layers is 2-4; the refractive index of the first refraction film layer is larger than that of the second refraction film layer; the electroplating film can realize the appearance of various colors, and has strong film system binding force, aging resistance and corrosion resistance.
Description
Technical Field
The utility model relates to a functional glass technical field specifically is a colored non-conducting vacuum electroplating film for cell-phone apron.
Background
In recent years, mobile phone consumption has become an indispensable part of human physical life. The products with high gloss, high brightness metal shell and surface metal plating appearance on the market are generally favored by consumers. However, with the gradual popularization of wireless charging and the arrival of novel transmission modes in the 5G era and the like, more various antennas are carried on the mobile phone, especially, the 5G era communication adopts a millimeter wave technology with a higher frequency band, the antenna design is more complicated, and the metal shell is difficult to deal with the design problem of the mobile phone antenna. This is mainly due to the conductivity of metal, and the electromagnetic field generated by the communication equipment during receiving or transmitting signals is accumulated by the conductive metal, thereby affecting the RF performance and ESD performance of the communication equipment.
Based on this, the non-conductive vacuum plating technology (NCVM) is widely used for the surface of mobile phones and various electronic products. The NCVM adopts films of coating metal, insulating compounds and the like, and utilizes the characteristics of various discontinuities to obtain the final appearance with metal texture without influencing the effect of wireless communication transmission. The primer, the intermediate paint and the finish paint are generally UV coatings, and the intermediate paint layer is used or not according to specific conditions, and mainly plays a role in coloring or improving performance.
Most of the existing NCVM processes use a tin (Sn) target or an indium (In) target as a main target material of the NCVM process, and the advantage of low conductivity of Sn and In is mainly utilized, but the presented metallic luster is a warmer color system, and the color of the metallic luster is not very selective. In order to solve the problem of monotonous color of the mobile phone cover plate obtained by the NCVM process, the mainstream color cover plate manufacturing approach at present is to add color paste into middle coating or top coating UV coating. However, after the color paste is added, the adhesive force of the coating is deteriorated, and the color paste can act with UV ultraviolet light, so that the higher the concentration of the color paste is, the poorer the UV energy absorption of the UV coating, and the poorer the deep curing, so that the phenomenon of paint falling between the color intermediate coat or the top coat layer and the primer layer is easy to occur. In addition, a method for manufacturing a color cover plate is to fill gas in the NCVM process, so that the gas reacts with a metal material to obtain colors, but the colors cannot be obtained due to the limitation of the optical interference rule of a single-layer film, so the color types of the cover plate of the mobile phone manufactured by the method are limited.
In addition, the main component of the UV coating is organic matter, which is easy to be corroded by oxygen and water vapor, so that the non-conductive metal film layer is aged, and the bonding force between the NCVM layer and the UV coating is reduced.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a colored non-conducting vacuum coating film for mobile phone cover board, this coating film can realize the outward appearance of multiple colour to membrane system cohesion is strong, ageing resistance, corrosion-resistant.
The utility model provides a technical scheme that its technical problem adopted is:
a colored non-conductive vacuum plating film for a mobile phone cover plate comprises a glass substrate, wherein a primer layer, a buffer layer, an NCVM (non-conductive metal-organic) layer, a color layer and a finish paint layer are sequentially laminated on the top surface of the glass substrate from bottom to top;
the buffer layer is a single crystal silicon layer, a nitride layer, an oxynitride layer or an oxide layer; the color layer is a composite film layer formed by alternately laminating a first refraction film layer and a second refraction film layer, and the number of the color layers is 2-4; the refractive index of the first refraction film layer is larger than that of the second refraction film layer.
Further, the nitride of the buffer layer is carbon nitride, silicon nitride, titanium nitride or aluminum nitride, the oxynitride of the buffer layer is silicon oxynitride or titanium oxynitride, and the oxide of the buffer layer is zirconium oxide, aluminum oxide, niobium oxide, tantalum oxide or titanium oxide.
Further, the first refraction film layer is made of carbon nitride, silicon nitride, titanium nitride, aluminum nitride, silicon oxynitride, titanium oxynitride, zirconium oxide, aluminum oxide, niobium oxide, tantalum oxide or titanium oxide; the second refraction film layer adopts silicon oxynitride, silicon oxide or magnesium fluoride.
The utility model has the advantages that the color layer is introduced, the reflected light generates different interference wavelengths by utilizing the composition of the film material and the adjustment of the film thickness through the laminated structure of the first refraction film layer and the second refraction film layer, and is combined with the NCVM layer, thereby obtaining the non-conductive vacuum plating films with various colors; the color layer and the buffer layer are compact inorganic films, so that the NCVM layer can be prevented from being corroded by oxygen and water vapor, and the NCVM layer is protected; because color paste is not adopted, the binding force of the film system can be ensured, and the phenomenon of paint falling is prevented.
Drawings
The invention will be further described with reference to the following figures and examples:
fig. 1 is a schematic structural diagram of the present invention;
fig. 2 is an enlarged schematic structural diagram of the color layer of the present invention.
Detailed Description
As shown in figure 1, the utility model provides a colored non-conducting vacuum plating film for mobile phone cover plate, including glass substrate 1, glass substrate 1 top surface is by lower supreme bottom lacquer layer 2, buffer layer 3, NCVM layer 4, colored layer 5 and finish paint layer 6 of laminating in proper order.
The buffer layer 3 is a single crystal silicon layer, a nitride layer, an oxynitride layer or an oxide layer; the nitride of the buffer layer is carbon nitride, silicon nitride, titanium nitride or aluminum nitride, the oxynitride of the buffer layer is silicon oxynitride or titanium oxynitride, and the oxide of the buffer layer is zirconium oxide, aluminum oxide, niobium oxide, tantalum oxide or titanium oxide.
As shown in fig. 2, the color layer 5 is a composite film layer formed by alternately laminating a first refraction film layer 51 and a second refraction film layer 52, and the number of the color layers is 2 to 4; the refractive index of the first refraction film layer is larger than that of the second refraction film layer.
When the number of the color layers is 2, the first refraction film layer/the second refraction film layer or the second refraction film layer/the first refraction film layer is stacked from bottom to top;
when the number of the color layers is 3, the first refraction film layer/the second refraction film layer/the first refraction film layer or the second refraction film layer/the first refraction film layer/the second refraction film layer are stacked from bottom to top;
when the number of the color layers is 4, the first refraction film layer/the second refraction film layer/the first refraction film layer/the second refraction film layer or the second refraction film layer/the first refraction film layer/the second refraction film layer/the first refraction film layer are stacked from bottom to top.
The first refraction film layer is made of carbon nitride, silicon nitride, titanium nitride, aluminum nitride, silicon oxynitride, titanium oxynitride, zirconium oxide, aluminum oxide, niobium oxide, tantalum oxide or titanium oxide; the second refraction film layer adopts silicon oxynitride, silicon oxide or magnesium fluoride.
The NCVM layer adopts indium, tin, zinc, titanium, zirconium or alloy of the above metals.
The above description is only a preferred embodiment of the present invention, and is not intended to limit the present invention in any way; the invention is not limited to the embodiments described herein, but is capable of other embodiments according to the invention, and may be used in various other applications, including, but not limited to, industrial, or industrial. Therefore, any simple modification, equivalent replacement, equivalent change and modification made to the above embodiments by the technical entity of the present invention all still belong to the protection scope of the technical solution of the present invention.
Claims (3)
1. A colored non-conductive vacuum plating film for a mobile phone cover plate is characterized by comprising a glass substrate, wherein a primer layer, a buffer layer, an NCVM layer, a colored layer and a finish paint layer are sequentially laminated on the top surface of the glass substrate from bottom to top;
the buffer layer is a single crystal silicon layer, a nitride layer, an oxynitride layer or an oxide layer; the color layer is a composite film layer formed by alternately laminating a first refraction film layer and a second refraction film layer, and the number of the color layers is 2-4; the refractive index of the first refraction film layer is larger than that of the second refraction film layer.
2. The colored non-conductive vacuum plating film for the cover plate of the mobile phone as claimed in claim 1, wherein the nitride of the buffer layer is carbon nitride, silicon nitride, titanium nitride or aluminum nitride, the oxynitride of the buffer layer is silicon oxynitride or titanium oxynitride, and the oxide of the buffer layer is zirconium oxide, aluminum oxide, niobium oxide, tantalum oxide or titanium oxide.
3. The colored non-conductive vacuum plating film for the mobile phone cover plate as claimed in claim 1, wherein the first refraction film layer is made of carbon nitride, silicon nitride, titanium nitride, aluminum nitride, silicon oxynitride, titanium oxynitride, zirconium oxide, aluminum oxide, niobium oxide, tantalum oxide or titanium oxide; the second refraction film layer adopts silicon oxynitride, silicon oxide or magnesium fluoride.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202022930419.0U CN214004767U (en) | 2020-12-09 | 2020-12-09 | Colored non-conductive vacuum plating film for mobile phone cover plate |
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| CN202022930419.0U CN214004767U (en) | 2020-12-09 | 2020-12-09 | Colored non-conductive vacuum plating film for mobile phone cover plate |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112481594A (en) * | 2020-12-09 | 2021-03-12 | 中建材蚌埠玻璃工业设计研究院有限公司 | Colored non-conductive vacuum plating film for mobile phone cover plate and preparation method thereof |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112481594A (en) * | 2020-12-09 | 2021-03-12 | 中建材蚌埠玻璃工业设计研究院有限公司 | Colored non-conductive vacuum plating film for mobile phone cover plate and preparation method thereof |
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