TWI391261B - Colour coating and electronic product using the same - Google Patents

Description

Color coating and electronic products using the same

The present invention relates to the field of surface coating, and more particularly to a color coating capable of forming a plurality of colors and an electronic product using the same.

The surface of electronic products such as mobile phones, computers and game consoles is usually painted in different colors to meet the consumer's requirements for the appearance of the product.

In the prior art, different colors were formed by spraying paint of different colors. See Electrostatic painting of insulating surfaces, Bougila, N.; Coelho, R.; Navarre, D.; Industry Applications, IEEE Transactions on Volume 29, Issue 4, July-Aug. 1993 Page(s): 798-801. However, these paints usually contain toxic organic substances that cause environmental pollution and impair human health. In addition, since the adhesion of the painted paint to the substrate of the electronic product is not strong, in the daily use of the electronic product, it is inevitable that the surface of the paint is scratched, and the sprayed paint of the scraped portion is peeled off, thereby making the appearance of the electronic product ugly.

In view of this, it is necessary to provide a color coating which is not pollute to the environment and is harmless to the human body and is not easily peeled off.

A color coating and an electronic product will be described below by way of examples.

A color coating comprising an adhesion layer, a color control layer and a reflective layer stacked in sequence, the adhesion layer The material is chrome, which is formed on the surface of the substrate. The reflective layer is made of aluminum for reflecting part of the incident light to form a first reflected light, and the surface of the substrate reflects the remaining incident light to form a second reflected light. The material of the control layer is ceria, which is used to control the optical path difference between the first reflected light and the second reflected light to interfere with the first reflected light and the second incident light, so that the colored coating exhibits different colors.

An electronic product comprising a product body for realizing the function of an electronic product, a casing for protecting the body of the product, and a color coating formed on a surface of the casing, the color coating comprising an adhesion layer sequentially stacked, color control The layer and the reflective layer are made of chrome, and the reflective layer is made of aluminum for reflecting part of the incident light to form the first reflected light, and the surface of the product casing reflects the remaining light to form the second reflected light. The material of the color control layer is cerium oxide, which is used for controlling the optical path difference between the first reflected light and the second reflected light, so that the first reflected light interferes with the second reflected light, so that the electronic product exhibits different colors.

Compared with the prior art, the color coating of the technical solution can realize the color pattern on the surface of the substrate without using the spray paint, and in actual use, the above-mentioned color coating is not easy to be scraped off. Therefore, the color coating structure of the present technical solution has the advantages of environmental protection and durability.

100, 200, 320‧‧‧ color coating

110‧‧‧ base

120, 321‧‧ ‧ adhesion layer

130, 322‧‧‧ color control layer

140, 323‧‧‧reflective layer

150, 324‧‧ ‧ anti-corrosion layer

210‧‧‧First color coated area

211‧‧‧First adhesion layer

212‧‧‧First color control layer

213‧‧‧First reflective layer

214‧‧‧First corrosion layer

220‧‧‧Second color coated area

221‧‧‧Second adhesion layer

222‧‧‧Second color control layer

223‧‧‧second reflective layer

224‧‧‧Second corrosion resistant layer

300‧‧‧Electronic products

301‧‧‧ Product Ontology

310‧‧‧Shell

1 is a schematic view of a color coating provided by a first embodiment of the present technical solution.

2 is a schematic view of a color coating provided by a second embodiment of the present technical solution.

FIG. 3 is a schematic diagram of an electronic product provided by a third embodiment of the present technical solution.

The color coating provided by the technical solution and the manufacturing method thereof will be further described below with reference to the accompanying drawings and embodiments.

Referring to FIG. 1 , the color coating 100 provided by the first embodiment of the technical solution includes the adhesion of the stacked layers. Layer 120, color control layer 130, reflective layer 140, and corrosion resistant layer 150.

A color coating 100 is formed on the outer surface of the substrate 110. The substrate 110 can be a variety of products to be colored on the outer surface, such as the outer casing of various electronic products. The substrate 110 can be made of various materials such as glass, metal, ceramics, alloys, glass ceramics and plastics. The plastic may be polycarbonate or polymethyl methacrylate.

The material of the adhesion layer 120 is metal chromium, and the thickness of the adhesion layer 120 is 0.3 to 10 nm, preferably 0.3 to 1.0 nm. In the present embodiment, the thickness of the adhesion layer 120 is 0.5 nm. The adhesion layer 120 can be formed by a liquid phase deposition method or a physical vapor deposition method. The adhesion layer 120 can enhance the adhesion of the subsequent plating layer to the substrate 110. The thickness of the adhesion layer 120 is small, and when the light propagates to the adhesion layer 120, the incidence of incident light rays is small, that is, the adhesion layer 120 is considered not to reflect the incident light.

The color control layer 130 may be formed on the adhesion layer 120 by a sputtering method, a plasma chemical vapor deposition method, or a chemical liquid deposition method. The color control layer 130 is made of cerium oxide and has a thickness of 50 to 1000 nm. For example, it can be 131 nm, 188 nm, 206 nm, 431 nm or 518 nm. The color control layer 130 is used to control the color of the color coat layer 100 by controlling its thickness.

The reflective layer 140 is formed on the color control layer 130. The material of the reflective layer 140 is metallic aluminum because the aluminum film has high reflectivity and is easily formed by evaporation. The reflective layer 140 has a thickness of 20 to 200 nm, preferably 50 nm. The reflective layer 140 can be formed by vacuum evaporation. The reflective layer 140 has a reflection function because the outer layer electrons (free electrons) in the metal atoms are not bound by the nucleus. When the metal is irradiated by the incident light, the free electrons absorb the energy of the light, and the oscillation of the same frequency is generated. Light is emitted at the same frequency as the original light, i.e., a reflective fiber is produced, which decreases as the depth of the metal increases. The thickness of the metal when the amplitude of the electronic oscillation is reduced to the original amplitude 1/e (e is the natural logarithm) is called the penetration thickness of the metal. Therefore, when the thickness of the reflective layer 140 is less than the penetration thickness of the aluminum, the portion of the light that is incident on the reflective layer 140 is reflected, and the remaining portion is transparent to the reflective layer 140.

The anti-corrosion layer 150 is formed on the reflective layer 140, and the anti-corrosion layer 150 is made of metallic chromium. The thickness of the anti-corrosion layer 150 can be determined according to actual needs, and is preferably from 10 nm to 100 nm. In the technical solution, the thickness of the anti-corrosion layer 150 is 10 nm. The anti-corrosion layer 150 can be formed by a liquid deposition method or a physical vapor deposition method. The thickness of the anti-corrosion layer 150 is also small, so that the incidence of incident light rays passing through the anti-corrosion layer 150 is also small.

When the incident light is irradiated onto the color coating 100, the anti-corrosion layer 150 is first incident on the reflective layer 140, and part of the incident light is reflected to form the first reflected light L1. The other incident light rays are incident on the color control layer 130 and the adhesion layer 120 through the reflective layer 140, and when the surface of the substrate 110 is reached, the other incident light rays are reflected by the surface, thereby forming the second reflected light L2. The first reflected light L1 and the second reflected light L2 will interfere, and when the optical path difference between the first reflected light L1 and the second reflected light L2 satisfies a condition that is a multiple of one-half the wavelength of a certain color light wave, The light wave vibration of a certain color is increased or decreased, so that the color coating 100 is colored when viewed. Because the thickness of the color control layer 130 is different, the optical path difference of the reflected light rays L1 and L2 is also different, and thus, the color coating layer 100 will exhibit different colors according to the thickness of the color control layer 130. For example, when the thickness of the adhesion layer 120 is 0.5 nm, the thickness of the reflection layer 130 is 50 nm, and the thickness of the anti-corrosion layer 150 is 10 nm, when the thickness of the color control layer 130 is 131 nm, The color of the color coating 100 is blue; when the thickness of the color control layer 130 is 188 nm, the color of the color coating 100 is yellow; when the thickness of the color control layer 130 is 206 nm, the color coating 100 The color is orange; when the thickness of the color control layer 130 is 431 nm, the color of the color coating 100 is purple; when the thickness of the color control layer 130 is 518 nm, the color of the color coating 100 is green. Therefore, different colors will be presented corresponding to the thickness of the different color control layer 130.

The second embodiment of the present invention provides a color coating 200 having a structure similar to that of the color coating 100 provided by the first embodiment of the present technology, except that the color coating 200 includes two first color regions connected to each other. 210 and the second color area 220, the first color area 210 includes sequentially stacked a first adhesion layer 211, a first color control layer 212, a first reflective layer 213, and a first corrosion-resistant layer 214. The second color region 220 includes a second adhesion layer 221, a second color control layer 222, and a second layer. The second reflective layer 223 and the second corrosion resistant layer 224. However, the thickness of the first color control layer 212 and the second color control layer 222 are different, such that the first color region 210 and the second color region 220 exhibit different colors. For example, the thickness of the first adhesion layer 211 and the thickness of the second adhesion layer 221 are both 0.5 nm, and the thickness of the first reflective layer 212 and the thickness of the second reflective layer 222 are both 50 nm. The thickness of the corrosion layer 214 and the thickness of the second corrosion resistant layer 224 are both 10 nm. The thickness of the first color control layer 212 of the first color coating region 210 is 131 nm, and the thickness of the second color control layer 222 of the second color coating region 220 is 188 nm, and the first color coating region 210 is presented. Blue, the second colored coating region 220 appears yellow, and thus, the colored coating structure 200 will assume a pattern of yellow and blue connections.

The third embodiment of the present technical solution provides an electronic product 300 including a product body 301, a housing 310, and a color coating 320 forming a surface of the housing 310.

The product body 301 is composed of components such as a wafer, a wire line, a screen, and a button. The product body 310 is used to implement functions of electronic products such as mobile phones, computers, and game machines.

The housing 310 is used to protect the product body 301. The housing 310 can be made of various materials such as glass, metal, ceramics, alloys, glass ceramics, and plastics. The plastic may be polycarbonate or polymethyl methacrylate.

The color coating layer 320 is formed on the surface of the housing 310, which has the same structure as the color coating structure 100 provided by the first embodiment of the present invention, and has an adhesion layer 321, a color control layer 322, a reflective layer 323, and a resistance layer which are sequentially stacked. Corrosion layer 324. The adhesive layer 321 is made of chromium and has a thickness of 0.3 to 10 nm. The color control layer 322 is made of cerium oxide and has a thickness of 50 to 1000 nm. The reflective layer 323 is made of aluminum and has a thickness of 20 to 200 nm. The reflective layer 323 is configured to reflect a portion of the incident light to form a first reflected light, and the product body casing 310 reflects the remaining light to form The second reflected light, the color control layer 322 is configured to control the optical path difference between the first reflected light and the second reflected light to cause the first reflected light to interfere with the second reflected light, so that the electronic product presents a different color.

Thereby, the thickness of the produced color control layer 322 can be controlled according to actual requirements, so that the electronic product 300 presents different colors.

Of course, different patterns can be designed as needed. In the pattern, a variety of different colors are included. To form a specific color at a specific position, it is only necessary to change the thickness of the color control layer.

In the technical solution, the color pattern can be formed on the surface of the substrate without using the spray paint, and in the actual use, the above-mentioned color coating is not easy to be scraped off. Therefore, the color coating structure of the present technical solution has the advantages of environmental protection and durability.

In summary, the present invention has indeed met the requirements of the invention patent, and has filed a patent application according to law. However, the above description is only a preferred embodiment of the present invention, and it is not possible to limit the scope of the patent application of the present invention. Equivalent modifications or variations made by persons skilled in the art in light of the spirit of the invention are intended to be included within the scope of the following claims.

100‧‧‧Color coating

110‧‧‧ base

120‧‧‧Adhesive layer

130‧‧‧Color control layer

140‧‧‧reflective layer

150‧‧‧Anti-corrosion layer

Claims (10)

A color coating comprising an adhesion layer, a color control layer, a reflective layer and an anti-corrosion layer stacked in sequence, the adhesion layer is made of chromium, and the adhesion layer has a thickness of 0.3 to 10 nm, which is formed on the surface of the substrate, The reflective layer is made of aluminum for reflecting part of the incident light to form a first reflected light, and the surface of the substrate reflects the remaining incident light to form a second reflected light having a thickness of 20 to 200 nm. The material of the control layer is cerium oxide, which is used for controlling the optical path difference between the first reflected light and the second reflected light, so that the first reflected light interferes with the second incident ray, so that the color coating exhibits different colors. The anti-corrosion layer is formed on the reflective layer. The anti-corrosion layer is made of chromium, and the anti-corrosion layer has a thickness of 10 to 100 nm. The color coating of claim 1, wherein the color control layer has a thickness of 50 to 1000 nm. The color coating of claim 1, wherein the adhesion layer has a thickness of 0.5 nm, the reflective layer has a thickness of 50 nm, and the corrosion resistant layer has a thickness of 10 nm. The color coating of claim 3, wherein the color control layer has a thickness of 131 nm, and the color of the color coating is blue. The color coating of claim 3, wherein the color control layer has a thickness of 188 nm, and the color of the color coating is yellow. The color coating of claim 3, wherein the color control layer has a thickness of 206 nm, and the color of the color coating is orange. The color coating of claim 3, wherein the color control layer has a thickness of 431 nm, and the color of the color coating is purple. The color coating of claim 3, wherein the color control layer has a thickness of 518 nm, and the color of the color coating is green. An electronic product comprising a product body for realizing the function of an electronic product, a casing for protecting the product body, and a color coating formed on a surface of the casing, the color coating comprising an adhesion layer and a color which are sequentially stacked a control layer, a reflective layer and an anti-corrosion layer, the adhesion layer is made of chromium, the adhesion layer has a thickness of 0.3 to 10 nm, and the reflective layer is made of aluminum for reflecting part of the incident light to form a first reflection. Light, the surface of the product shell reflects the remaining light to form a second reflected light having a thickness of 20 to 200 nm, and the color control layer is made of cerium oxide for controlling the first reflected light and the second reflected The optical path of the light is different, so that the first reflected light interferes with the second reflected light, so that the electronic product exhibits different colors, and the anti-corrosion layer is formed on the reflective layer, and the anti-corrosion layer is made of chromium, and the anti-corrosion layer is made of chromium. The thickness of the corrosion layer is from 10 to 100 nm. The electronic product of claim 9, wherein the material of the casing is glass, metal, ceramic, alloy, glass ceramic or plastic.