CN114147985A - Manufacturing method of mobile phone decorative film of micro-lens array applying UV patterning mode - Google Patents

Manufacturing method of mobile phone decorative film of micro-lens array applying UV patterning mode Download PDF

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Publication number
CN114147985A
CN114147985A CN202011504522.7A CN202011504522A CN114147985A CN 114147985 A CN114147985 A CN 114147985A CN 202011504522 A CN202011504522 A CN 202011504522A CN 114147985 A CN114147985 A CN 114147985A
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China
Prior art keywords
layer
mobile phone
forming
manufacturing
lens array
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CN202011504522.7A
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Chinese (zh)
Inventor
李荣敏
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Shiling Technology Co ltd
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Shiling Technology Co ltd
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    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08JWORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J7/00Chemical treatment or coating of shaped articles made of macromolecular substances
    • C08J7/04Coating
    • C08J7/042Coating with two or more layers, where at least one layer of a composition contains a polymer binder
    • C08J7/0423Coating with two or more layers, where at least one layer of a composition contains a polymer binder with at least one layer of inorganic material and at least one layer of a composition containing a polymer binder
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C69/00Combinations of shaping techniques not provided for in a single one of main groups B29C39/00 - B29C67/00, e.g. associations of moulding and joining techniques; Apparatus therefore
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B41PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41MPRINTING, DUPLICATING, MARKING, OR COPYING PROCESSES; COLOUR PRINTING
    • B41M1/00Inking and printing with a printer's forme
    • B41M1/10Intaglio printing ; Gravure printing
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B41PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41MPRINTING, DUPLICATING, MARKING, OR COPYING PROCESSES; COLOUR PRINTING
    • B41M1/00Inking and printing with a printer's forme
    • B41M1/26Printing on other surfaces than ordinary paper
    • B41M1/30Printing on other surfaces than ordinary paper on organic plastics, horn or similar materials
    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08JWORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J5/00Manufacture of articles or shaped materials containing macromolecular substances
    • C08J5/18Manufacture of films or sheets
    • GPHYSICS
    • G02OPTICS
    • G02BOPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B1/00Optical elements characterised by the material of which they are made; Optical coatings for optical elements
    • G02B1/04Optical elements characterised by the material of which they are made; Optical coatings for optical elements made of organic materials, e.g. plastics
    • G02B1/041Lenses
    • GPHYSICS
    • G02OPTICS
    • G02BOPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B3/00Simple or compound lenses
    • G02B3/0006Arrays
    • G02B3/0037Arrays characterized by the distribution or form of lenses
    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08JWORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J2369/00Characterised by the use of polycarbonates; Derivatives of polycarbonates

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  • Chemical & Material Sciences (AREA)
  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Optics & Photonics (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Organic Chemistry (AREA)
  • Manufacturing & Machinery (AREA)
  • General Physics & Mathematics (AREA)
  • Materials Engineering (AREA)
  • Inorganic Chemistry (AREA)
  • Mechanical Engineering (AREA)
  • Laminated Bodies (AREA)
  • Telephone Set Structure (AREA)

Abstract

Compared with the existing film, the decorative film applied to the mobile phone rear cover has a hazy visual sense, so that various aesthetic feelings can be provided for users.

Description

Manufacturing method of mobile phone decorative film of micro-lens array applying UV patterning mode
Technical Field
The present invention relates to a method for manufacturing a mobile phone decoration film using a UV patterning type microlens Array, and more particularly, to a method for manufacturing a mobile phone back cover film using a UV patterning type microlens Array, in which a layer of a microlens Array (MLA) formed by a UV patterning type is formed on a front surface of Polycarbonate (PC).
Background
Recently, with the development of mobile phone and smart phone technologies, mobile phones and smart phones (hereinafter, collectively referred to as "mobile phones") of various designs are on the market.
These cellular phones are composed of a housing constituting the external appearance of the cellular phone and various circuit components mounted inside the housing to perform the functions inherent to the cellular phone.
Among them, a rear cover (i.e., a case) attached to a back of a cellular phone is generally made of synthetic resin and has relatively low hardness, and thus a flaw such as a scratch is easily generated when an external impact is applied.
Therefore, recently, in order to protect mobile phone products and improve aesthetic sense, technical development of mobile phone decorative films is actively being developed.
In order to satisfy various personality pursuits of modern people, the mobile phone decoration film needs to have various colors, glosses, patterns (i.e., patterns), and the like.
[ Prior art documents ]
[ patent document ]
Patent document 1: korean patent application No. 10-2018-.
Disclosure of Invention
[ problem ] to provide a method for producing a semiconductor device
The present invention has been made to solve the above problems, and it is an object of the present invention to provide a method for manufacturing a mobile phone back cover film using a UV patterning type microlens array, in which a decorative film applied to a mobile phone back cover is visually hazy compared to a conventional film, thereby providing various aesthetic feelings to a user.
Another object of the present invention is to provide a method for manufacturing a back cover film for a cellular phone using a UV patterning microlens array, which can reduce the cost by shortening the manufacturing process of the film, improve scratch resistance and chemical resistance compared to conventional films, and ensure a high visibility state without leaving any trace such as a fingerprint.
[ technical solution ] A
In order to solve the technical problems as described above, a method for manufacturing a mobile phone decoration film using a UV patterning type microlens array according to the present invention may include a step of forming a Polycarbonate (PC) layer; and a step of forming a Micro Lens Array (MLA) layer formed using a UV patterning manner in front of the polycarbonate layer.
In addition, a step of forming a lower UV pattern layer on the rear surface of the polycarbonate layer may be further included; a step of forming a deposition layer on a rear surface of the lower UV pattern layer; forming a silk-screen printing layer on the back of the deposition layer; and a forming operation step and a CNC machining step.
In addition, the microlens array layer further UV-molds the entire front surface of the polycarbonate layer, and the UV pattern layer further UV-molds the patterned surface.
[ PROBLEMS ] the present invention
As described above, according to the present invention, the decoration film applied to the rear cover of the cellular phone can be visually hazy compared to the conventional thin film, thereby providing various aesthetic senses to the user.
In addition, the invention has the following advantages: the film can be produced at a reduced cost by shortening the production process, and has improved scratch resistance and chemical resistance compared with conventional films, and has a high-visibility state without leaving any trace such as a fingerprint.
Drawings
FIG. 1 is a schematic diagram of a microlens array layer according to an embodiment.
Fig. 2 is a schematic view of a mobile phone decoration film part formed with a micro lens array layer applied to a mobile phone case.
Fig. 3 is a schematic view of a mobile phone decoration film formed with a microlens array layer according to an embodiment.
[ description of reference numerals ]
100: mobile phone decoration film
110: polycarbonate layer
120: microlens array layer
130: UV pattern layer
140: deposit layer
150: and (6) screen printing of the layer.
Detailed Description
Hereinafter, a method for manufacturing a mobile phone decoration film using a UV patterning type microlens array according to an embodiment of the present invention will be described in detail with reference to the accompanying drawings. It should be noted that, in the drawings, the same constituent elements or components are illustrated by the same reference numerals as much as possible. In describing the present invention, a detailed description of related well-known functions or configurations will be omitted so as not to obscure the gist of the present invention.
Fig. 1 is a schematic view of a microlens array layer according to an embodiment, and fig. 3 is a schematic view of a mobile phone decoration film formed with a microlens array layer according to an embodiment.
The mobile phone decoration film 100 may include a Polycarbonate (PC) layer 110 and a Micro Lens Array (MLA) layer 120 formed in a UV-patterned manner on a front surface of the PC layer 110 as a thin film applied to a rear cover formed on a rear surface of a mobile phone.
The polycarbonate layer 110 as the base film is a thermoplastic plastic. Has the characteristics of impact resistance, heat resistance, weather resistance, self-extinguishing property, transparency and the like, and has the impact strength which is about 150 times or more of that of toughened glass, thereby having excellent flexibility and processability. As a substitute material for acrylic which is easily broken and easily deformed, and a material for use as a backup material for general plate glass, they are widely used.
The microlens array layer 120 according to an embodiment may be formed of at least one of epoxy resin, acrylic resin, polyolefin resin, polyamide resin, polyester resin, polyvinyl chloride resin, polyvinyl acetate resin, petroleum resin, phenol resin, polystyrene resin, and polyurethane resin as a thin film layer formed in a UV patterning manner.
In addition, the microlens array layer 120 may be formed in front of the polycarbonate layer 110 by a gravure process using a gravure roll formed with a predetermined pattern or shape of intaglio grooves.
For the microlens array layer 120, after the composition is filled in the intaglio groove, the cross section may have a concavo-convex shape as the intaglio printing is performed on the front surface of the microlens array layer.
The adhesive according to an embodiment may use a resin material having a predetermined viscosity. Since a viscous substance is used, the adhesion force between the film, the pattern layer or the metal decorative layer can be improved without providing a separate adhesive layer. The adhesive may include at least one of an epoxy resin, an acrylic resin, a polyolefin resin, a polyamide resin, a polyester resin, a polyvinyl chloride resin, a polyvinyl acetate resin, a petroleum resin, a phenol resin, a polystyrene resin, and a polyurethane resin.
In addition, the microlens array layer is a pattern (pattern) printed layer in which MLA is formed by UV molding on the whole of the front surface of the polycarbonate layer, and in this case, the pattern (pattern) may be printed based on an ultraviolet-ray Printing (Ultra-Violet Printing) method.
The UV printing method is a method for improving such a technical problem, in which a dedicated liquid ink having an instant drying property, which is instantly cured while being exposed to UV light, is used, and is instantly dried by ultraviolet rays, so that various colors can be embodied without being limited by materials, and has strong anti-discoloration and anti-moisture properties, thereby ensuring excellent durability based on external climate change.
Even if the pattern layer is not a UV type pattern layer, the pattern layer may be formed by a gravure printing process using a gravure roll having a surface formed with a predetermined pattern or shape of a gravure groove. At this time, after the composition for forming the UV pattern layer is filled in the intaglio groove, the pattern layer having the uneven shape in cross section can be formed as the intaglio printing is performed on the color print layer. As described above, when the UV pattern layer is formed, various designs can be exhibited, so that the aesthetic sense can be improved.
The composition for forming the pattern layer may contain a viscous substance. The adhesive substance may include at least one of epoxy resin, acrylic resin, polyolefin resin, polyamide resin, polyester resin, polyvinyl chloride resin, polyvinyl acetate resin, petroleum resin, phenol resin, polystyrene resin, and polyurethane resin. The composition for forming a pattern layer containing a viscous substance is filled into a gravure roll having a surface on which a gravure groove is formed, thereby allowing a gravure printing process to be performed. Therefore, the pattern layer can be formed immediately without additional curing process in the subsequent process, thereby simplifying the process and shortening the process time.
In the UV pattern layer formed in front of the polycarbonate layer 110, if the composition forming the UV pattern layer contains the same adhesive material as that used in the colored print layer, the interfacial characteristics between the colored print layer and the UV pattern layer can be improved.
The UV pattern layer 130 is formed on the back surface of the polycarbonate layer, and may be formed with various patterns (patterns) as is well known in the art.
Next, a step of forming a deposition layer 140 corresponding to the pattern of the UV pattern layer 130 on the back of the UV pattern layer 130 is included. The Deposition layer 140 is formed of a material having a predetermined transmittance, and may be formed based on Chemical Vapor Deposition (CVD), Physical Vapor Deposition (PVD), or the like.
In addition, the transmittance or reflectance may be adjusted while maintaining the pattern formed on the UV pattern layer 130. The deposition layer 140 may include at least one of indium, chromium, Tin, and ito (indium Tin oxide) as a transparent conductive layer having conductivity.
Chemical vapor deposition, which utilizes chemical reactions during the fabrication process, is a process technique for forming a silicon thin film or the like on a substrate in the fabrication process of an integrated circuit or the like. Is widely used for manufacturing Silicon oxide films, Silicon nitride films, Amorphous Silicon (Amorphous Silicon) films, and the like. When a gas containing a chemical substance is plasmatized by applying thermal energy or optical energy or by high frequency, the raw material is atomized to greatly improve the reactivity, and adsorbed and deposited on the substrate.
The physical vapor deposition process is a process of depositing an oxide semiconductor, GaAs, or the like on a substrate by melting a compound substance to prepare a target substance in a solid state, volatilizing the target substance by heat or an electron beam, and depositing the target substance on the substrate.
At this time, the raw material is volatilized in a gaseous state by heat, laser, electron beam, or the like, and the volatilized gaseous raw material becomes a solid state when contacting the substrate.
Next, a step of forming a screen printing layer 150 on the rear surface of the deposition layer 140 is included. The screen printing layer 150 is formed by a screen printing method, and may also print a logo, a product model name, a button, or a specific pattern.
Secondly, a forming operation step of 3D die stamping is performed after screen printing to provide a stereoscopic aesthetic feeling.
Next, a CNC processing step of cutting the molded cellular phone decorating film 100 into individual cells (cells) is performed.
Fig. 2 is a schematic diagram illustrating a mobile phone decoration film portion formed with a microlens array layer 120 applied to a mobile phone case 200, the mobile phone case 200 can be clearly distinguished into a portion 220 applied with the mobile phone decoration film 100 and a portion 210 not applied with the mobile phone decoration film, and the applied portion 220 can be visually seen as a hazy feeling.
That is, the present invention can provide various aesthetic feelings to a user by generating a hazy feeling visually through the microlens array layer as compared with a conventional decoration film applied to a rear cover, and can ensure a high recognition state by improving scratch resistance, chemical resistance, and durability as compared with a conventional film and by not leaving any trace such as a fingerprint.
The drawings and specification disclose preferred embodiments. Although specific terms are used herein, they are used only for the purpose of describing the present invention, and are not intended to limit the meaning or the scope of the present invention described in the claims. Therefore, it will be understood by those having ordinary skill in the art that various modifications may be made based on the above and equivalent other embodiments may be implemented. Therefore, the true technical scope of the present invention will be determined based on the technical idea of the claims.

Claims (3)

1. A manufacturing method of a mobile phone decoration film applying a micro-lens array in a UV patterning mode comprises the following steps: a step of forming a polycarbonate layer; and a step of forming a microlens array layer formed by a UV patterning manner in front of the polycarbonate layer.
2. The method for manufacturing a mobile phone decoration film using a UV patterning micro lens array as claimed in claim 1, further comprising: a step of forming a lower UV pattern layer on the back surface of the polycarbonate layer; a step of forming a deposition layer on a rear surface of the lower UV pattern layer; forming a silk-screen printing layer on the back of the deposition layer; and a forming operation step and a CNC machining step.
3. The method of manufacturing a cellular phone decoration film using a UV patterning type micro lens array according to claim 2, wherein the micro lens array layer further UV-molds the whole of the front surface of the polycarbonate layer, and the UV pattern layer further UV-molds the patterned surface.
CN202011504522.7A 2020-09-08 2020-12-18 Manufacturing method of mobile phone decorative film of micro-lens array applying UV patterning mode Pending CN114147985A (en)

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KR1020200114625A KR20220032827A (en) 2020-09-08 2020-09-08 Manufacturing method of cellular phone decoration film with micro lens array applied
KR10-2020-0114625 2020-09-08

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Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2005103877A (en) * 2003-09-30 2005-04-21 Nissha Printing Co Ltd Molded object with picture and its manufacturing method
KR20130085310A (en) * 2012-01-19 2013-07-29 한국조폐공사 Stereoscopic security film and injection-molded products with thereof and the producing method thereof
WO2014056124A1 (en) * 2012-10-11 2014-04-17 Hwang Yu-Chen 3d printing method and decorative panel and light box made thereby
JP2018051990A (en) * 2016-09-29 2018-04-05 富士フイルム株式会社 Method for manufacturing three-dimensional object
KR20180091513A (en) * 2017-02-07 2018-08-16 (주)세경하이테크 Method of manufacturing film for cellular phone decoration
JP2018131480A (en) * 2017-02-13 2018-08-23 三菱ケミカル株式会社 Surface decorative film, methods of evaluating and producing the same, and surface decorative article
KR20180129039A (en) * 2017-05-25 2018-12-05 (주)코반케미칼 Glass decoration film and the manufacturing method thereof
CN110673239A (en) * 2019-10-22 2020-01-10 华南理工大学 Naked eye 3D mobile phone backboard film, preparation method thereof and mobile phone
KR20200072231A (en) * 2018-12-12 2020-06-22 (주)세경하이테크 Cellular phone decoration film and manufacturing method thereof

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2017109543A1 (en) 2015-12-22 2017-06-29 Arcelormittal Method and system for determining the mass of feedstock on a conveyor

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2005103877A (en) * 2003-09-30 2005-04-21 Nissha Printing Co Ltd Molded object with picture and its manufacturing method
KR20130085310A (en) * 2012-01-19 2013-07-29 한국조폐공사 Stereoscopic security film and injection-molded products with thereof and the producing method thereof
WO2014056124A1 (en) * 2012-10-11 2014-04-17 Hwang Yu-Chen 3d printing method and decorative panel and light box made thereby
JP2018051990A (en) * 2016-09-29 2018-04-05 富士フイルム株式会社 Method for manufacturing three-dimensional object
KR20180091513A (en) * 2017-02-07 2018-08-16 (주)세경하이테크 Method of manufacturing film for cellular phone decoration
JP2018131480A (en) * 2017-02-13 2018-08-23 三菱ケミカル株式会社 Surface decorative film, methods of evaluating and producing the same, and surface decorative article
KR20180129039A (en) * 2017-05-25 2018-12-05 (주)코반케미칼 Glass decoration film and the manufacturing method thereof
KR20200072231A (en) * 2018-12-12 2020-06-22 (주)세경하이테크 Cellular phone decoration film and manufacturing method thereof
CN110673239A (en) * 2019-10-22 2020-01-10 华南理工大学 Naked eye 3D mobile phone backboard film, preparation method thereof and mobile phone

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