CN112954093A - Mobile phone rear cover with gradually changed colors and preparation method thereof - Google Patents
Mobile phone rear cover with gradually changed colors and preparation method thereof Download PDFInfo
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- CN112954093A CN112954093A CN202110187040.1A CN202110187040A CN112954093A CN 112954093 A CN112954093 A CN 112954093A CN 202110187040 A CN202110187040 A CN 202110187040A CN 112954093 A CN112954093 A CN 112954093A
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- layer
- ito
- mobile phone
- conductive film
- transparent conductive
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- 239000003086 colorant Substances 0.000 title abstract description 6
- 238000002360 preparation method Methods 0.000 title description 6
- 239000010410 layer Substances 0.000 claims abstract description 155
- 230000003287 optical effect Effects 0.000 claims abstract description 25
- 239000012790 adhesive layer Substances 0.000 claims abstract description 18
- 238000010023 transfer printing Methods 0.000 claims abstract description 18
- 238000009713 electroplating Methods 0.000 claims abstract description 11
- 239000007769 metal material Substances 0.000 claims abstract description 6
- 239000000758 substrate Substances 0.000 claims description 43
- 239000002131 composite material Substances 0.000 claims description 9
- 239000003292 glue Substances 0.000 claims description 9
- 238000000034 method Methods 0.000 claims description 8
- 238000004806 packaging method and process Methods 0.000 claims description 8
- 229920003229 poly(methyl methacrylate) Polymers 0.000 claims description 7
- 239000004926 polymethyl methacrylate Substances 0.000 claims description 7
- 238000007639 printing Methods 0.000 claims description 6
- 238000007747 plating Methods 0.000 claims description 5
- 239000011521 glass Substances 0.000 claims description 4
- 229910044991 metal oxide Inorganic materials 0.000 claims description 4
- 150000004706 metal oxides Chemical group 0.000 claims description 4
- 238000000748 compression moulding Methods 0.000 claims description 3
- 238000002347 injection Methods 0.000 claims description 2
- 239000007924 injection Substances 0.000 claims description 2
- 239000000463 material Substances 0.000 abstract description 17
- 230000000694 effects Effects 0.000 abstract description 9
- 229910052755 nonmetal Inorganic materials 0.000 abstract description 5
- 238000007650 screen-printing Methods 0.000 description 4
- 229910000838 Al alloy Inorganic materials 0.000 description 2
- 239000000969 carrier Substances 0.000 description 2
- 238000010329 laser etching Methods 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 230000000007 visual effect Effects 0.000 description 2
- 239000011165 3D composite Substances 0.000 description 1
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 238000009500 colour coating Methods 0.000 description 1
- 238000007766 curtain coating Methods 0.000 description 1
- 238000005034 decoration Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- AMGQUBHHOARCQH-UHFFFAOYSA-N indium;oxotin Chemical compound [In].[Sn]=O AMGQUBHHOARCQH-UHFFFAOYSA-N 0.000 description 1
- 238000001746 injection moulding Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000007645 offset printing Methods 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 229910052709 silver Inorganic materials 0.000 description 1
- 239000004332 silver Substances 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 238000002834 transmittance Methods 0.000 description 1
- 239000012780 transparent material Substances 0.000 description 1
Images
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M1/00—Substation equipment, e.g. for use by subscribers
- H04M1/02—Constructional features of telephone sets
- H04M1/0202—Portable telephone sets, e.g. cordless phones, mobile phones or bar type handsets
- H04M1/0279—Improving the user comfort or ergonomics
- H04M1/0283—Improving the user comfort or ergonomics for providing a decorative aspect, e.g. customization of casings, exchangeable faceplate
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M1/00—Substation equipment, e.g. for use by subscribers
- H04M1/02—Constructional features of telephone sets
- H04M1/18—Telephone sets specially adapted for use in ships, mines, or other places exposed to adverse environment
Landscapes
- Engineering & Computer Science (AREA)
- Signal Processing (AREA)
- Telephone Set Structure (AREA)
- Laminated Bodies (AREA)
Abstract
The invention discloses a mobile phone rear cover with gradually changed colors, which comprises a base material body, and an OCA optical adhesive layer, a first PET base material layer, a first ITO layer, an electrochromic gel layer, a second ITO layer, a second PET base material layer, a UV transfer printing layer, an electroplating layer and an ink layer which are sequentially stacked along the base material body, wherein the base material body is made of a non-metal material, and the first ITO layer and the second ITO layer are connected through a circuit to form a loop. This lid behind gradual change look cell-phone introduces electrochromic gel layer and lid behind the cell-phone and combines behind the realization lid is dynamic color change along with the different electric quantities of cell-phone behind the cell-phone, presents the gradual change effect to improve user's experience degree.
Description
Technical Field
The invention relates to the technical field of electronic products, in particular to a mobile phone rear cover with a gradually changed color and a preparation method thereof.
Background
With the coming of the 5G era, metal mobile phones (such as mobile phones made of aluminum alloy formed by aluminum alloy mobile phone back covers) are gradually eliminated due to the influence of metal on signals, the PMMA/PC composite boards do not influence mobile phone signals due to the characteristics of plastic materials of the PMMA/PC composite boards, high surface hardness (glass imitation effect) can be achieved through processes such as surface curtain coating, and colorful decoration effects can be achieved through processes such as UV transfer printing/PVD/silk screen printing on the inner layers, so that the PMMA/PC composite boards are widely used in mobile phone rear covers. The invention patent CN110588200A adopts four-color offset printing of PU ink to realize the gradient color effect of the back cover of the 3D composite board; in patent CN111013978A, the PVD gradient color coating process is adopted to realize the gradient color effect of the rear cover of the composite board; in patent CN111031160A, the decorative effect of the rear cover of the composite board mobile phone is realized by adopting the processes of silk screen printing, optical coating, mirror silver ink printing, UV transfer printing, silk screen printing ink and the like.
Therefore, consumers seek the appearance and use feeling of the mobile phone more, and the mobile phone rear cover with the color-gradient effect gradually becomes the mainstream design.
Disclosure of Invention
One of the objectives of the present invention is to provide a mobile phone rear cover with gradually changing colors, so as to achieve dynamic color change of the mobile phone rear cover with different electric quantities of the mobile phone, to achieve a gradually changing effect, and to improve the experience of the user.
The second purpose of the invention is to provide a preparation method of the mobile phone rear cover with gradually changed colors.
In order to achieve the purpose, the invention discloses a mobile phone rear cover with gradually changed colors, which comprises a base material body, and an OCA optical adhesive layer, a first PET base material layer, a first ITO layer, an electrochromic gel layer, a second ITO layer, a second PET base material layer, a UV transfer printing layer, an electroplating layer and an ink layer which are sequentially stacked along the base material body, wherein the base material body is made of a non-metal material, and the first ITO layer and the second ITO layer are connected through a circuit to form a loop.
Preferably, the substrate body is selected from one of glass, modified PC and PMMA/PC composite material.
Preferably, the modified PC is transparent PC prepared by injection compression molding.
Preferably, the sum of the thicknesses of the first PET substrate layer and the first ITO layer is 12.5-50 microns.
Preferably, the sum of the thicknesses of the second PET substrate layer and the second ITO layer is 12.5-50 microns.
Preferably, the thickness of the electrochromic gel layer is 20-80 microns.
Preferably, the voltage of the electrochromic gel layer is in the range of 1-3V.
Preferably, the electroplated layer is a metal oxide layer, and the applicant finds that when the electroplated layer is the metal oxide layer, the gradient color of the electrochromic gel layer is matched with the refraction of the electroplated layer and the UV transfer printing layer, so that the color and the pattern are more clearly visible.
Correspondingly, the invention also provides a preparation method of the mobile phone rear cover with the gradually changed color, which comprises the following steps:
(1) forming a first ITO optical adhesive layer on the first PET substrate layer to obtain a first transparent conductive film;
(2) forming a second ITO optical adhesive layer on the second PET substrate layer to obtain a second transparent conductive film;
(3) packaging the electrochromic gel between the first transparent conductive film and the second transparent conductive film through packaging glue or a glue film;
(4) carrying out UV transfer printing on the other side of the second transparent conductive film to form micro-nano textures to obtain a UV transfer printing layer;
(5) performing PVD optical electroplating on the surface of the UV transfer printing layer to form an electroplating layer;
(6) printing ink on the surface of the electroplated layer to form an ink layer.
(7) And attaching the other side of the first transparent conductive film to the substrate body by means of the OCA optical adhesive layer.
Preferably, in the step (7), before the bonding, laser etching is performed on the other side of the first transparent conductive film, and then the bonding is performed.
Compared with the prior art, the mobile phone rear cover with the gradually changed color, disclosed by the invention, has the advantages that the electrochromic gel layer is introduced to be combined with the mobile phone rear cover, so that the mobile phone rear cover is dynamically changed in color along with different electric quantities of the mobile phone, and the experience degree of a user is improved. Particularly, the first ITO layer and the second ITO layer are coated on the surfaces of the first ITO layer and the second ITO layer respectively by using the first PET base material layer and the second PET base material layer as carriers, so that the electrochromic gel layer can be simply and stably packaged between the first ITO layer and the second ITO layer. And the first ITO layer and the second ITO layer are connected through a circuit to form a loop so as to supply power to the electrochromic gel layer. In addition, the base material body is made of non-metal materials, so that the influence on mobile phone signals is avoided. The electrochromic gel layer is along with the change colour that different electric quantities produced takes place the refraction of different degree through UV rendition layer and plating layer to produce optical pattern, the refraction of electrochromic gel layer gradual change effect cooperation UV rendition layer and plating layer makes the colour of lid behind the cell-phone and the visual effect of texture pattern improve greatly.
Drawings
Fig. 1 is a schematic structural diagram of a rear cover of a mobile phone with a gradient color according to the present application.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1, a mobile phone rear cover 100 with a gradually changing color of the present application includes a substrate body 10, and an OCA optical adhesive layer 11, a first PET substrate layer 12, a first ITO (indium tin oxide) layer 13, an electrochromic gel layer 14, a second ITO layer 15, a second PET substrate layer 16, a UV transfer layer 17, an electroplating layer 18, and an ink layer 19 sequentially stacked on the substrate body 10, where the substrate body 10 is made of a non-metal material, and the first ITO layer 13 and the second ITO layer 15 are connected by a circuit to form a loop. It can be understood that the power supply of the mobile phone is installed in the loop, and in the using process, along with the change of the electric quantity of the mobile phone of a user, the voltage provided for the electrochromic gel layer 14 changes to cause the gradual color change, so that the rear cover of the mobile phone is in dynamic color change along with different electric quantities of the mobile phone.
Further, the substrate body 10 is selected from one of glass, modified PC and PMMA/PC composite material. Preferably, the substrate body 10 is made of a transparent PMMA/PC composite material. Wherein, the modified PC is transparent PC prepared by injection molding and compression molding. Wherein, OCA optical adhesive layer 11 is colorless and transparent, and the light transmittance is more than 90%.
Further, the sum of the thicknesses of the first PET substrate layer 12 and the first ITO layer 13 is 12.5 to 50 micrometers. For example, the thickness may be 12.5 microns, 15 microns, 20 microns, 30 microns, 35 microns, 40 microns, 50 microns. The thickness of the first PET substrate layer 12 can be, but is not limited to, 10-48 micrometers, and the thickness of the first ITO layer 13 can be, but is not limited to, 2-20 micrometers.
Further, the sum of the thicknesses of the second PET substrate layer 16 and the second ITO layer 15 is 12.5 to 50 micrometers. For example, the thickness may be 12.5 microns, 15 microns, 20 microns, 30 microns, 35 microns, 40 microns, 50 microns. Wherein, the thickness of the second PET substrate layer 16 can be, but is not limited to, 10-48 microns, and the thickness of the second ITO layer 15 can be, but is not limited to, 2-20 microns. The first PET substrate layer 12 and the second PET substrate layer 16 are made of a transparent material. Preferably, the first PET substrate layer 12 and the second PET substrate layer 16 have the same thickness, and the second ITO layer 15 and the first ITO layer 13 have the same thickness.
Further, the thickness of the electrochromic gel layer 14 is 20-80 microns. For example, the thickness may be 20 microns, 30 microns, 40 microns, 50 microns, 60 microns, 70 microns, 80 microns. The working voltage of the electrochromic gel layer 14 is 1-3V, which belongs to the low-voltage working range and can improve the service life of the electrochromic gel layer 14. The color gradient for the electrochromic gel layer 14 can be selected according to the actual need.
The invention also provides a preparation method of the mobile phone rear cover with the gradually changed color, which comprises the following steps:
(1) forming a first ITO optical adhesive layer on the first PET substrate layer to obtain a first transparent conductive film;
(2) forming a second ITO optical adhesive layer on the second PET substrate layer to obtain a second transparent conductive film;
(3) packaging the electrochromic gel between the first transparent conductive film and the second transparent conductive film through packaging glue or a glue film;
(4) carrying out UV transfer printing on the other side of the second transparent conductive film to form micro-nano textures to obtain a UV transfer printing layer;
(5) performing PVD optical electroplating on the surface of the UV transfer printing layer to form an electroplating layer;
(6) printing ink on the surface of the electroplated layer to form an ink layer.
(7) And attaching the other side of the first transparent conductive film to the substrate body by means of the OCA optical adhesive layer.
In the step (7), before the bonding, laser etching is performed on the other side of the first transparent conductive film, and then the bonding is performed.
Specifically, in an embodiment, a method for manufacturing a mobile phone rear cover with a gradually changing color includes the following steps:
(1) plating a first ITO optical adhesive layer on the first PET substrate layer to obtain a first transparent conductive film, wherein the thickness of the first transparent conductive film is 43 micrometers, the thickness of the first PET substrate layer is 38 micrometers, and the thickness of the first ITO optical adhesive layer is 5 micrometers;
(2) plating a second ITO optical adhesive layer on the second PET substrate layer to obtain a second transparent conductive film, wherein the thickness of the second transparent conductive film is 43 micrometers, the thickness of the second PET substrate layer is 38 micrometers, and the thickness of the second ITO optical adhesive layer is 5 micrometers;
(3) packaging the electrochromic gel between the first transparent conductive film and the second transparent conductive film through packaging glue;
(4) carrying out UV transfer printing on the other side of the second transparent conductive film to form micro-nano textures to obtain a UV transfer printing layer;
(5) performing PVD optical electroplating on the surface of the UV transfer printing layer to form a layer of metal oxide to form an electroplated layer;
(6) and carrying out silk-screen printing process on the surface of the electroplated layer to form an ink layer.
(7) And attaching the other side of the first transparent conductive film to the substrate body by means of the OCA optical adhesive layer.
Compared with the prior art, the mobile phone rear cover with the gradually changed color, disclosed by the invention, has the advantages that the electrochromic gel layer is introduced to be combined with the mobile phone rear cover, so that the mobile phone rear cover is dynamically changed in color along with different electric quantities of the mobile phone, and the experience degree of a user is improved. Particularly, the first ITO layer and the second ITO layer are coated on the surfaces of the first ITO layer and the second ITO layer respectively by using the first PET base material layer and the second PET base material layer as carriers, so that the electrochromic gel layer can be simply and stably packaged between the first ITO layer and the second ITO layer. And the first ITO layer and the second ITO layer are connected through a circuit to form a loop so as to supply power to the electrochromic gel layer. In addition, the base material body is made of non-metal materials, so that the influence on mobile phone signals is avoided. The electrochromic gel layer passes through UV transfer printing layer and electroplated layer along with the change colour that different electric quantities produced after, takes place the refraction of different degree to produce optical pattern, the visual effect of colour and texture pattern improves user's experience degree greatly.
The above disclosure is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the scope of the present invention, therefore, the present invention is not limited by the appended claims.
Claims (8)
1. The utility model provides a lid behind gradual change look cell-phone, its characterized in that includes the substrate body and follows OCA optics glue film, first PET substrate layer, first ITO layer, electrochromic gel layer, second ITO layer, second PET substrate layer, UV rendition layer, plating layer and the printing ink layer that stack gradually on the substrate body, the substrate body is non-metallic material, first ITO layer with second ITO layer is connected through the circuit and is formed the return circuit.
2. The mobile phone rear cover of claim 1, wherein the substrate body is selected from one of glass, modified PC, and PMMA/PC composite.
3. The mobile phone rear cover of claim 2, wherein the modified PC is a transparent PC made by injection compression molding.
4. The cover of claim 1, wherein the sum of the thicknesses of the first PET substrate layer and the first ITO layer is 12.5-50 microns.
5. The cover of claim 1, wherein the sum of the thicknesses of the second PET substrate layer and the second ITO layer is 12.5-50 microns.
6. The graduated handset back cover according to claim 1, wherein the electrochromic gel layer has a thickness of 20-80 microns.
7. The mobile phone rear cover of claim 1, wherein the electroplated layer is a metal oxide layer.
8. The method for preparing the mobile phone rear cover with the gradually changed color according to any one of claims 1 to 7, characterized by comprising the following steps:
(1) forming a first ITO optical adhesive layer on the first PET substrate layer to obtain a first transparent conductive film;
(2) forming a second ITO optical adhesive layer on the second PET substrate layer to obtain a second transparent conductive film;
(3) packaging the electrochromic gel between the first transparent conductive film and the second transparent conductive film through packaging glue or a glue film;
(4) carrying out UV transfer printing on the other side of the second transparent conductive film to form micro-nano textures to obtain a UV transfer printing layer;
(5) performing PVD optical electroplating on the surface of the UV transfer printing layer to form an electroplating layer;
(6) printing ink on the surface of the electroplated layer to form an ink layer.
(7) And attaching the other side of the first transparent conductive film to the substrate body by means of the OCA optical adhesive layer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110187040.1A CN112954093A (en) | 2021-02-10 | 2021-02-10 | Mobile phone rear cover with gradually changed colors and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110187040.1A CN112954093A (en) | 2021-02-10 | 2021-02-10 | Mobile phone rear cover with gradually changed colors and preparation method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112954093A true CN112954093A (en) | 2021-06-11 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110187040.1A Pending CN112954093A (en) | 2021-02-10 | 2021-02-10 | Mobile phone rear cover with gradually changed colors and preparation method thereof |
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| Country | Link |
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| CN (1) | CN112954093A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113879789A (en) * | 2021-09-28 | 2022-01-04 | 广东阿特斯科技有限公司 | Fluorescent mobile phone backboard production line equipment |
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| CN103312844A (en) * | 2013-06-27 | 2013-09-18 | 华为技术有限公司 | Terminal, color changing method and color changing device |
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Application publication date: 20210611 |