WO2014073725A1 - Protective film for mobile device and manufacturing device therefor - Google Patents

Protective film for mobile device and manufacturing device therefor Download PDF

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Publication number
WO2014073725A1
WO2014073725A1 PCT/KR2012/009624 KR2012009624W WO2014073725A1 WO 2014073725 A1 WO2014073725 A1 WO 2014073725A1 KR 2012009624 W KR2012009624 W KR 2012009624W WO 2014073725 A1 WO2014073725 A1 WO 2014073725A1
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WIPO (PCT)
Prior art keywords
protective film
mobile device
liquid
hole
holes
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Application number
PCT/KR2012/009624
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French (fr)
Korean (ko)
Inventor
김현식
Original Assignee
Kim Hyun Sik
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Application filed by Kim Hyun Sik filed Critical Kim Hyun Sik
Publication of WO2014073725A1 publication Critical patent/WO2014073725A1/en

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
    • H04B1/38—Transceivers, i.e. devices in which transmitter and receiver form a structural unit and in which at least one part is used for functions of transmitting and receiving
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
    • H04B1/38—Transceivers, i.e. devices in which transmitter and receiver form a structural unit and in which at least one part is used for functions of transmitting and receiving
    • H04B1/3827—Portable transceivers
    • H04B1/3888—Arrangements for carrying or protecting transceivers
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
    • C09J7/00—Adhesives in the form of films or foils
    • C09J7/20—Adhesives in the form of films or foils characterised by their carriers
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F1/00—Details not covered by groups G06F3/00 - G06F13/00 and G06F21/00
    • G06F1/16—Constructional details or arrangements
    • G06F1/1613—Constructional details or arrangements for portable computers
    • G06F1/1626—Constructional details or arrangements for portable computers with a single-body enclosure integrating a flat display, e.g. Personal Digital Assistants [PDAs]
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F1/00—Details not covered by groups G06F3/00 - G06F13/00 and G06F21/00
    • G06F1/16—Constructional details or arrangements
    • G06F1/1613—Constructional details or arrangements for portable computers
    • G06F1/1633—Constructional details or arrangements of portable computers not specific to the type of enclosures covered by groups G06F1/1615 - G06F1/1626
    • G06F1/1656—Details related to functional adaptations of the enclosure, e.g. to provide protection against EMI, shock, water, or to host detachable peripherals like a mouse or removable expansions units like PCMCIA cards, or to provide access to internal components for maintenance or to removable storage supports like CDs or DVDs, or to mechanically mount accessories
    • 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
    • A—HUMAN NECESSITIES
    • A45—HAND OR TRAVELLING ARTICLES
    • A45C—PURSES; LUGGAGE; HAND CARRIED BAGS
    • A45C13/00—Details; Accessories
    • A45C13/008—Details; Accessories for making water- or air-tight
    • A—HUMAN NECESSITIES
    • A45—HAND OR TRAVELLING ARTICLES
    • A45C—PURSES; LUGGAGE; HAND CARRIED BAGS
    • A45C11/00—Receptacles for purposes not provided for in groups A45C1/00-A45C9/00
    • A45C2011/002—Receptacles for purposes not provided for in groups A45C1/00-A45C9/00 for portable handheld communication devices, e.g. mobile phone, pager, beeper, PDA, smart phone
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
    • H04B1/38—Transceivers, i.e. devices in which transmitter and receiver form a structural unit and in which at least one part is used for functions of transmitting and receiving
    • H04B2001/3894—Waterproofing of transmission device

Definitions

  • the present invention relates to a protective film and a manufacturing apparatus thereof, and more particularly, to provide a waterproof function to a protective film of a mobile device so as to prevent a liquid containing water from penetrating into the mobile device and preventing its function from being impaired. It is related with a film and its manufacturing apparatus.
  • Mobile devices are being developed and distributed in various ways such as mobile phones, smart phones, tablets, etc., and it is common to adopt a touch screen to form a screen using a liquid crystal display or a light emitting diode display and to provide convenience of operation.
  • a protective film is generally attached to the screen to prevent the screen from being damaged due to frequent screen touches or collisions or scratches.
  • the film for protecting the screen of the mobile device is called a protective film.
  • the protective film is generally a pressure-sensitive adhesive is applied to one side of the polymer film, such as polyurethane or polyester film, it is used to attach to the screen.
  • the protective film has a shape corresponding to the screen of the mobile device, and a portion of the mobile device, for example, a speaker, a camera lens, a sensor, a home button, etc. is removed and the part is exposed to the outside.
  • a mobile device falls into liquid, especially water, in a situation such as a mistake of a user or rainy weather, liquid penetrates into the inside of the mobile device through the exposed portion, thereby causing damage to the performance of the mobile device.
  • the present invention has been made in an effort to provide a protective film for a mobile device and a device for manufacturing the same, which are given a waterproof function to prevent liquid from penetrating into an exposed portion of the mobile device.
  • the protective film of the mobile device for solving the problem of the present invention is a protective film for protecting the screen of the mobile device, the protective film is the surface of the liquid in the penetration portion is easy to penetrate the liquid into the inside of the mobile device A plurality of holes forming a protective film is formed by tension.
  • the liquid may be water.
  • the diameter of the hole may be changed by the contact angle which is the surface characteristic of the protective film.
  • the diameter of the hole is preferably 0.5 to 3mm.
  • the shape of the hole may be any one selected from a circle, a triangle, a square or a hexagon, or a combination thereof, and the plurality of holes may be arranged in a square or zigzag form.
  • the apparatus for manufacturing a protective film of a mobile device for solving the present invention is a press portion for manufacturing the overall shape of the protective film of the mobile device, including a waterproof portion and the penetration portion is easy to penetrate the liquid into the inside of the mobile device It includes a piercing portion for making a plurality of holes in which the protective film is formed by the surface tension of the liquid.
  • the press unit and the piercing unit may be operated simultaneously or sequentially to manufacture the protective film.
  • a plurality of holes are formed in an exposed portion of the mobile device in the protective film to form a protective film in the hole by surface tension of a liquid, thereby exposing the mobile device.
  • the liquid can be prevented from penetrating into the part.
  • FIG. 1 is a plan view showing a protective film of a mobile device according to the present invention.
  • FIG. 2 is a cross-sectional view conceptually expressing that a liquid forms a protective film by surface tension in a plurality of holes according to the present invention.
  • 3 to 5 are plan views showing a modification of the shape of the hole formed in the penetrating portion of the present invention.
  • FIG. 6 is a block diagram conceptually illustrating an apparatus for manufacturing a protective film of a mobile device according to the present invention.
  • Embodiment of the present invention by forming a plurality of holes (hole) in the exposed portion of the mobile device in the protective film to form a protective film by the surface tension of the liquid, thereby preventing the liquid from penetrating the exposed portion of the mobile device
  • a protective film of a mobile device and a manufacturing apparatus thereof are provided. To this end, the principle of preventing a liquid from penetrating the inside of the mobile device by the surface tension of the plurality of holes of the protective film in detail, and will be described in detail the manufacturing apparatus of the protective film to implement this.
  • Surface tension refers to the tension acting to make the surface small on the free surface of the liquid, also called interfacial tension. Because molecules near the liquid surface have a higher potential energy than molecules in the liquid, the liquid has surface energy proportional to the surface area, which results in surface tension. All liquids have a surface tension, and especially water has a high surface tension compared to cooking oil, alcohol, ether, and the like. Protective film of the present invention can be applied to all liquids, in particular, the effect of preventing the damage of the mobile device by water will be great.
  • FIG. 1 is a plan view showing a protective film of a mobile device according to an embodiment of the present invention.
  • the protective film is merely to present one example, various types of protective film may be possible within the scope of the present invention.
  • the protective film 10 is to protect the screen of the mobile device, the adhesive is generally applied to one surface of the polymer film, such as polyurethane or polyester film, by attaching it to the screen of the mobile device Used.
  • the protective film 10 has a form corresponding to the screen of the mobile device, and a portion of the mobile device, for example, a speaker, a camera lens, a sensor, a home button, etc. is removed and the portion is exposed to the outside.
  • the waterproof part 20 is relatively waterproof and liquid containing water is less likely to penetrate into the inside of the mobile device. The penetration may be classified into a large penetration 30.
  • the waterproof part 20 is, for example, a part in which a camera, a sensor, or the like is installed, which is a part that is well waterproofed so that a liquid including water does not penetrate when the mobile device is manufactured.
  • the penetrating part 30 is a part in which a speaker, a home button, etc. are installed, which is vulnerable to penetration of a liquid including water due to the characteristics of a mobile device.
  • the protective film 10 of the present invention distinguishes the part exposed to the outside of the mobile device into the waterproof part 20 and the penetrating part 30, and the embodiment of the present invention is limited to the surface tension by being limited to the penetrating part 30. Will present a structure that prevents penetration of the liquid.
  • the penetration part 30 represented the area by a dotted line, but the reason indicated by the dotted line is to represent a virtual area that does not appear in the actual protective film 10.
  • a plurality of first holes 32 are drilled.
  • the diameter of the first hole 32 is sufficient to prevent the liquid from penetrating further into the first hole 32 by the surface tension of liquid, in particular water.
  • FIG. 2 is a cross-sectional view conceptually expressing that a liquid forms a protective film by surface tension in a plurality of first holes 32 according to an embodiment of the present invention.
  • a liquid forms a protective film by surface tension in a plurality of first holes 32 according to an embodiment of the present invention.
  • the surface tension of the liquid by the surface tension of the first hole 32
  • the protective film 40 is formed.
  • This protective film 40 is due to the inherent surface tension characteristics of the liquid. Accordingly, the diameter of the first hole 32 is sufficient if the protective film 40 is formed by the surface tension.
  • the diameter of the first hole 32 may vary depending on the surface characteristics of the protective film 10.
  • the protective film 10 may be of various kinds, such as using a polyester film having a hard coating or a polyurethane film without a hard coating to improve scratch resistance, antifouling resistance, and the like. Accordingly, since the contact angle, which is a surface characteristic thereof, may vary according to the type of the protective film 10, the diameter of the first hole 32 of the present invention may be set differently accordingly. Furthermore, since the size or shape of the penetrating portion 30 may vary according to the type of mobile device, the number of first holes 32 may be differently determined according to the size or shape of the penetrating portion 30.
  • the first hole 32 is changed as the height h of the first hole 32 is changed.
  • the diameter of may also vary.
  • the diameter of the first hole 32 is preferably 0.5 to 3mm. If the diameter is less than 0.5mm, the first hole 32 is too large to realize the object of the present invention, and if the diameter is larger than 3mm, the protective film 40 may not be formed.
  • 3 to 5 are plan views showing a modification of the shape of the hole formed in the penetrating portion of the present invention.
  • the shape of the hole formed in the penetrating portion of the present invention.
  • the arrangement of the first holes 32 may be zigzag in the square arrangement of FIG. 1 (FIG. 3).
  • the first holes 32 may be arranged while alternately repeating in a zigzag form.
  • the shape of the hole formed in the penetrating portion 30 may be arranged in the shape of a square instead of the circle of FIG. 1 so that the mesh shape (FIG. 4) or the triangle shapes alternately face each other as shown in FIG. have.
  • it may also be a honeycomb shape made of a hexagonal shape. The liquid may easily contact the angled portion so that the protective film 40 may be easily formed, and may be determined in consideration of the appearance.
  • the hole of the present invention may be any one or a combination thereof selected from a circle, a triangle, a rectangle, or a hexagon.
  • a circle and a rectangle may be combined to form a plurality of holes. This will take into account the ease and appearance of the protective film 40 as described above.
  • Each hole may also be made of a combination of the above curves or straight lines.
  • the plurality of holes may be arranged in a zigzag form, as shown in FIG. 3.
  • Protective film 10 according to an embodiment of the present invention by forming a plurality of holes (hole) in the penetration portion 30 is easy to penetrate the liquid exposed to the mobile device by forming a protective film by the surface tension of the liquid, Infiltration of liquids into mobile devices can be suppressed. In particular, since there is a high risk of the user dropping the mobile device in the water, it is more effective to prevent damage to the mobile device by water.
  • FIG. 6 is a block diagram conceptually illustrating an apparatus for manufacturing a protective film of a mobile device according to an embodiment of the present invention. At this time, the protective film 10 will be referred to FIG.
  • the manufacturing apparatus of the present invention includes holes 32 and 34 of the press part 50 and the penetration part 30 for manufacturing the overall shape of the protective film 10 of the present invention including the waterproof part 20. And a piercing unit 60 for making 36).
  • the press unit 50 and the piercing unit 60 may be operated at the same time to manufacture the protective film 10, and the piercing unit 60 may be sequentially operated after the press unit 50 to sequentially protect the protective film 10. It may also be prepared.

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  • Engineering & Computer Science (AREA)
  • Computer Hardware Design (AREA)
  • Theoretical Computer Science (AREA)
  • Signal Processing (AREA)
  • General Engineering & Computer Science (AREA)
  • Human Computer Interaction (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Telephone Set Structure (AREA)

Abstract

Disclosed are a protective film for a mobile device having a waterproof function for preventing the permeation of a liquid into an exposed part of the mobile device, and a manufacturing device therefor. The film and the manufacturing device therefor comprise: a plurality of holes for forming a protective layer using surface tension of a liquid which are formed on a permeation part for facilitating the permeation of the liquid into the mobile device; a press unit for manufacturing the entire shape of the protective film including a waterproof part; and a piercing unit for making the plurality of holes for forming the protective layer using the surface tension of the liquid which are formed on the permeation part for facilitating the permeation of the liquid into the mobile device.

Description

모바일 기기의 보호필름 및 그 제조장치Protective film of mobile device and its manufacturing device
본 발명은 보호필름 및 그 제조장치에 관한 것으로, 보다 상세하게는 모바일(mobile) 기기의 보호필름에 방수 기능을 부여하여 모바일 기기에 물을 포함한 액체가 침투하여 그 기능이 손상되는 것을 방지하는 보호필름 및 그 제조장치에 관한 것이다. The present invention relates to a protective film and a manufacturing apparatus thereof, and more particularly, to provide a waterproof function to a protective film of a mobile device so as to prevent a liquid containing water from penetrating into the mobile device and preventing its function from being impaired. It is related with a film and its manufacturing apparatus.
모바일 기기는 핸드폰, 스마트폰, 태블릿 등과 같이 다양하게 개발되어서 보급되고 있으며, 액정 표시장치나 발광 다이오드 표시장치 등을 이용하여 화면을 형성하고 조작의 편의성을 제공하기 위하여 터치스크린을 채용하는 것이 일반적이다. 이러한 모바일 기기는 잦은 화면 터치 또는 충돌이나 긁힘 등에 의하여 화면이 손상되는 것을 방지하기 위하여 보호필름을 화면에 부착하는 것이 일반적이다. 이와 같이 모바일 기기의 화면을 보호하기 위한 필름을 보호필름이라고 한다.Mobile devices are being developed and distributed in various ways such as mobile phones, smart phones, tablets, etc., and it is common to adopt a touch screen to form a screen using a liquid crystal display or a light emitting diode display and to provide convenience of operation. . In such mobile devices, a protective film is generally attached to the screen to prevent the screen from being damaged due to frequent screen touches or collisions or scratches. As such, the film for protecting the screen of the mobile device is called a protective film.
보호필름은 일반적으로 폴리우레탄 또는 폴리에스터 필름과 같은 고분자 필름의 일면에 점착제가 도포되어 있으며, 이를 상기 화면에 부착하여 사용된다. 보호필름은 모바일 기기의 화면에 부합하는 형태를 갖추고, 모바일 기기 중, 예를 들어, 스피커, 카메라 렌즈, 센서, 홈 버튼 등이 있는 부분은 제거되어 그 부분이 외부로 노출되어 있다. 그런데, 사용자의 실수 또는 우천과 같은 상황에서 모바일 기기가 액체, 특히 물속에 빠지면 상기 노출된 부분을 통하여 모바일 기기의 내부로 액체가 침투되어 모바일 기기의 성능에 손상을 가하는 문제가 발생하고 있다.The protective film is generally a pressure-sensitive adhesive is applied to one side of the polymer film, such as polyurethane or polyester film, it is used to attach to the screen. The protective film has a shape corresponding to the screen of the mobile device, and a portion of the mobile device, for example, a speaker, a camera lens, a sensor, a home button, etc. is removed and the part is exposed to the outside. However, when a mobile device falls into liquid, especially water, in a situation such as a mistake of a user or rainy weather, liquid penetrates into the inside of the mobile device through the exposed portion, thereby causing damage to the performance of the mobile device.
본 발명이 해결하고자 하는 과제는 모바일 기기의 노출된 부분으로 액체가 침투되는 것을 방지하는 방수 기능에 부여된 모바일 기기의 보호필름 및 그 제조장치를 제공하는 데 있다.SUMMARY OF THE INVENTION The present invention has been made in an effort to provide a protective film for a mobile device and a device for manufacturing the same, which are given a waterproof function to prevent liquid from penetrating into an exposed portion of the mobile device.
본 발명이 과제를 해결하기 위한 모바일 기기의 보호필름은 모바일 기기의 화면을 보호하기 위한 보호필름에 있어서, 상기 보호필름은 상기 모바일 기기의 내부로 액체가 침투하기 용이한 침투부에 상기 액체의 표면장력에 의해 보호막을 이루는 복수개의 홀들이 형성되어 있다. 이때, 상기 액체는 물일 수 있다.The protective film of the mobile device for solving the problem of the present invention is a protective film for protecting the screen of the mobile device, the protective film is the surface of the liquid in the penetration portion is easy to penetrate the liquid into the inside of the mobile device A plurality of holes forming a protective film is formed by tension. In this case, the liquid may be water.
본 발명의 보호필름에 있어서, 상기 홀의 직경은 상기 보호필름의 표면특성인 접촉각에 의해 달라질 수 있다. 또한, 300㎛ 두께의 폴리우레탄 필름에 100㎛의 두께의 아크릴계 점착제가 코팅된 상기 보호필름에 있어서, 상기 홀의 직경은 0.5 내지 3mm이 바람직하다. 나아가, 상기 홀의 모양은 원형, 삼각형, 사각형 또는 육각형 중에 선택된 어느 하나 또는 이들의 조합일 수 있으며, 상기 복수개의 홀은 정방형 또는 지그재그 형태로 배열될 수 있다. In the protective film of the present invention, the diameter of the hole may be changed by the contact angle which is the surface characteristic of the protective film. In addition, in the protective film coated with a 100 μm thick acrylic pressure-sensitive adhesive on a 300 μm thick polyurethane film, the diameter of the hole is preferably 0.5 to 3mm. In addition, the shape of the hole may be any one selected from a circle, a triangle, a square or a hexagon, or a combination thereof, and the plurality of holes may be arranged in a square or zigzag form.
본 발명이 과제를 해결하기 위한 모바일 기기의 보호필름의 제조장치는 방수부를 포함한 모바일 기기의 보호필름의 전체적인 모양을 제조하는 프레스부 및 상기 모바일 기기의 내부로 액체가 침투하기 용이한 침투부에 상기 액체의 표면장력에 의해 보호막이 형성되는 복수개의 홀들을 만들기 위한 피어싱부를 포함한다. 이때, 상기 프레스부와 상기 피어싱부는 동시 또는 순차적으로 동작하여 상기 보호필름을 제조할 수 있다. The apparatus for manufacturing a protective film of a mobile device for solving the present invention is a press portion for manufacturing the overall shape of the protective film of the mobile device, including a waterproof portion and the penetration portion is easy to penetrate the liquid into the inside of the mobile device It includes a piercing portion for making a plurality of holes in which the protective film is formed by the surface tension of the liquid. In this case, the press unit and the piercing unit may be operated simultaneously or sequentially to manufacture the protective film.
모바일 기기의 보호필름 및 그 제조장치에 의하면, 보호필름에서 모바일 기기의 노출되는 부분에 복수개의 홀(hole)을 형성하여 액체의 표면장력에 의해 상기 홀에 보호막을 형성함으로써, 모바일 기기의 노출된 부분으로 액체가 침투되는 것을 방지할 수 있다. According to a protective film of a mobile device and an apparatus for manufacturing the same, a plurality of holes are formed in an exposed portion of the mobile device in the protective film to form a protective film in the hole by surface tension of a liquid, thereby exposing the mobile device. The liquid can be prevented from penetrating into the part.
도 1은 본 발명에 의한 모바일 기기의 보호필름을 나타내는 평면도이다.1 is a plan view showing a protective film of a mobile device according to the present invention.
도 2는 본 발명에 의한 복수개의 홀에 액체가 표면장력에 의해 보호막을 형성하는 것을 개념적으로 표현한 단면도이다.2 is a cross-sectional view conceptually expressing that a liquid forms a protective film by surface tension in a plurality of holes according to the present invention.
도 3 내지 도 5는 본 발명의 침투부에 형성된 홀의 형상에 대한 변형례를 나타낸 평면도이다.3 to 5 are plan views showing a modification of the shape of the hole formed in the penetrating portion of the present invention.
도 6는 본 발명에 의한 모바일 기기의 보호필름을 제조하는 장치를 개념적으로 설명하기 위한 블록도이다.6 is a block diagram conceptually illustrating an apparatus for manufacturing a protective film of a mobile device according to the present invention.
이하 첨부된 도면을 참조하면서 본 발명의 바람직한 실시예를 상세히 설명한다. 다음에서 설명되는 실시예는 여러 가지 다른 형태로 변형될 수 있으며, 본 발명의 범위가 아래에서 상술되는 실시예에 한정되는 것은 아니다. 본 발명의 실시예는 당 분야에서 통상의 지식을 가진 자에게 본 발명을 보다 완전하게 설명하기 위하여 제공되는 것이다. Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings. The embodiments described below may be modified in various other forms, and the scope of the present invention is not limited to the embodiments described below. The embodiments of the present invention are provided to more completely explain the present invention to those skilled in the art.
본 발명의 실시예는 보호필름에서 모바일 기기의 노출되는 부분에 복수개의 홀(hole)을 형성하여 액체의 표면장력에 의해 보호막을 형성함으로써, 모바일 기기의 노출된 부분으로 액체가 침투되는 것을 방지하는 모바일 기기의 보호필름 및 그 제조장치를 제시한다. 이를 위해, 보호필름의 복수개의 홀이 표면장력에 의해 모바일 기기의 내부로 액체가 침투하는 것을 방지하는 원리를 상세하게 설명하고, 이를 구현하기 위한 보호필름의 제조장치를 구체적으로 살펴보기로 한다.Embodiment of the present invention by forming a plurality of holes (hole) in the exposed portion of the mobile device in the protective film to form a protective film by the surface tension of the liquid, thereby preventing the liquid from penetrating the exposed portion of the mobile device A protective film of a mobile device and a manufacturing apparatus thereof are provided. To this end, the principle of preventing a liquid from penetrating the inside of the mobile device by the surface tension of the plurality of holes of the protective film in detail, and will be described in detail the manufacturing apparatus of the protective film to implement this.
표면장력이란 액체의 자유표면에서 표면을 작게 하려고 작용하는 장력을 말하며 계면장력이라고도 한다. 액면 부근의 분자가 액체 속의 분자보다 위치에너지가 크기 때문에 액체는 표면적에 비례하는 표면 에너지를 가지고, 이로 인해 표면장력이 생긴다. 모든 액체는 표면장력이 존재하며, 특히 물은 식용유, 알콜, 에테를 등에 비해 그 표면장력이 크다고 알려져 있다. 본 발명의 보호필름은 모든 액체에 적용이 가능하나, 특히 물에 의한 모바일 기기의 손상을 방지하는 데 그 효과가 크다고 할 것이다.Surface tension refers to the tension acting to make the surface small on the free surface of the liquid, also called interfacial tension. Because molecules near the liquid surface have a higher potential energy than molecules in the liquid, the liquid has surface energy proportional to the surface area, which results in surface tension. All liquids have a surface tension, and especially water has a high surface tension compared to cooking oil, alcohol, ether, and the like. Protective film of the present invention can be applied to all liquids, in particular, the effect of preventing the damage of the mobile device by water will be great.
도 1은 본 발명의 실시예에 의한 모바일 기기의 보호필름을 나타내는 평면도이다. 이때, 상기 보호필름은 하나의 사례를 제시하는 것에 불과하므로, 본 발명의 범주 내에서 다양한 형태의 보호필름이 가능할 것이다.1 is a plan view showing a protective film of a mobile device according to an embodiment of the present invention. In this case, since the protective film is merely to present one example, various types of protective film may be possible within the scope of the present invention.
도 1에 의하면, 보호필름(10)은 모바일 기기의 화면을 보호하기 위한 것으로, 일반적으로 폴리우레탄 또는 폴리에스터 필름과 같은 고분자 필름의 일면에 점착제가 도포되어 있으며, 이를 모바일 기기의 화면에 부착하여 사용된다. 보호필름(10)은 모바일 기기의 화면에 부합하는 형태를 갖추고, 모바일 기기 중, 예를 들어, 스피커, 카메라 렌즈, 센서, 홈 버튼 등이 있는 부분은 제거되어 그 부분이 외부로 노출되어 있다. 이와 같이 노출되어 있는 부분 중에서 상대적으로 방수가 잘 되어 물을 포함한 액체가 모바일 기기의 내부로 침투해 들어갈 가능성이 적은 방수부(20)와 상대적으로 방수가 어려워 물을 포함한 액체가 모바일 기기의 내부로 침투해 들어간 가능성이 큰 침투부(30)로 구분될 수 있다.According to Figure 1, the protective film 10 is to protect the screen of the mobile device, the adhesive is generally applied to one surface of the polymer film, such as polyurethane or polyester film, by attaching it to the screen of the mobile device Used. The protective film 10 has a form corresponding to the screen of the mobile device, and a portion of the mobile device, for example, a speaker, a camera lens, a sensor, a home button, etc. is removed and the portion is exposed to the outside. In this exposed part, the waterproof part 20 is relatively waterproof and liquid containing water is less likely to penetrate into the inside of the mobile device. The penetration may be classified into a large penetration 30.
방수부(20)는, 예를 들어 카메라, 센서 등이 설치된 부분으로, 이는 모바일 기기를 제작할 때 물을 포함한 액체가 침투되지 않도록 방수처리가 잘 되어 있는 부분이다. 이에 비해, 침투부(30)는 스피커, 홈 버튼 등이 설치된 부분으로, 이는 모바일 기기의 특성 상 물을 포함한 액체의 침투에 취약한 부분이다. 본 발명의 보호필름(10)은 모바일 기기의 외부로 노출된 부분을 방수부(20)와 침투부(30)로 구별하며, 본 발명의 실시예는 침투부(30)에 국한하여 표면장력에 의해 상기 액체의 침투를 방지하는 구조를 제시할 것이다.The waterproof part 20 is, for example, a part in which a camera, a sensor, or the like is installed, which is a part that is well waterproofed so that a liquid including water does not penetrate when the mobile device is manufactured. In contrast, the penetrating part 30 is a part in which a speaker, a home button, etc. are installed, which is vulnerable to penetration of a liquid including water due to the characteristics of a mobile device. The protective film 10 of the present invention distinguishes the part exposed to the outside of the mobile device into the waterproof part 20 and the penetrating part 30, and the embodiment of the present invention is limited to the surface tension by being limited to the penetrating part 30. Will present a structure that prevents penetration of the liquid.
침투부(30)는 그 영역을 점선으로 표현하였으나, 점선으로 표시한 이유는 실제 보호필름(10)에서는 나타나지 않는 가상의 영역을 표현하기 위한 것이다. 침투부(30)에는 하나의 홀(hole)이 뚫려 있는 종래와는 달리 복수개의 제1 홀(hole; 32)이 뚫려 있다. 제1 홀(32)의 직경은 액체, 특히 물의 표면장력에 의해 제1 홀(32)에 상기 액체가 더 이상 침투하지 않도록 하는 정도이면 충분하다. The penetration part 30 represented the area by a dotted line, but the reason indicated by the dotted line is to represent a virtual area that does not appear in the actual protective film 10. Unlike the prior art in which one hole is drilled in the penetrating portion 30, a plurality of first holes 32 are drilled. The diameter of the first hole 32 is sufficient to prevent the liquid from penetrating further into the first hole 32 by the surface tension of liquid, in particular water.
도 2는 본 발명의 실시예에 의한 복수개의 제1 홀(32)에 액체가 표면장력에 의해 보호막을 형성하는 것을 개념적으로 표현한 단면도이다. 도시된 바와 같이, 보호필름(10)의 침투부(30)에 형성된 제1 홀(32)에 액체, 특히 물이 닿으면, 액체의 표면장력에 의해 제1 홀(32)에 표면장력에 의해 보호막(40)을 형성한다. 이러한 보호막(40)은 액체의 고유한 표면장력 특성에 의한 것이다. 이에 따라, 제1 홀(32)의 직경은 상기 표면장력에 의해 보호막(40)이 형성되는 정도이면 충분하다. 2 is a cross-sectional view conceptually expressing that a liquid forms a protective film by surface tension in a plurality of first holes 32 according to an embodiment of the present invention. As shown, when liquid, in particular water, comes into contact with the first hole 32 formed in the penetrating portion 30 of the protective film 10, the surface tension of the liquid by the surface tension of the first hole 32 The protective film 40 is formed. This protective film 40 is due to the inherent surface tension characteristics of the liquid. Accordingly, the diameter of the first hole 32 is sufficient if the protective film 40 is formed by the surface tension.
또한, 제1 홀(32)의 직경은 보호필름(10)의 표면특성에 따라 달라질 수 있다. 보호필름(10)은 내스크래치성, 방오성 등을 향상시키기 위하여 하드 코팅이 형성된 폴리에스테 필름 또는 하드 코팅이 없이 폴리우레탄 필름을 사용하는 등 다양한 종류가 있다. 이에 따라, 보호필름(10)의 종류에 따라 그 표면특성인 접촉각이 달라질 수 있으므로, 본 발명의 제1 홀(32)의 직경은 이에 부합하여 다르게 설정될 수 있다. 나아가, 모바일 기기의 종류에 따라 침투부(30)의 크기나 모양이 다를 수 있으므로, 제1 홀(32)의 개수는 침투부(30)의 크기나 모양에 따라 다르게 결정될 수 있다.In addition, the diameter of the first hole 32 may vary depending on the surface characteristics of the protective film 10. The protective film 10 may be of various kinds, such as using a polyester film having a hard coating or a polyurethane film without a hard coating to improve scratch resistance, antifouling resistance, and the like. Accordingly, since the contact angle, which is a surface characteristic thereof, may vary according to the type of the protective film 10, the diameter of the first hole 32 of the present invention may be set differently accordingly. Furthermore, since the size or shape of the penetrating portion 30 may vary according to the type of mobile device, the number of first holes 32 may be differently determined according to the size or shape of the penetrating portion 30.
본 발명의 실시예에 의한 제1 홀(32)은 액체에 닿으면 표면장력에 의해 보호막(40)이 형성되므로, 제1 홀(32)의 높이(h)가 달라짐에 따라 제1 홀(32)의 직경도 변화될 수 있다. 예를 들어, 300㎛ 두께의 폴리우레탄 필름에 100㎛의 두께의 아크릴계 점착제가 코팅된 보호필름(10)의 경우, 상기 높이(h)는 총 400㎛가 된다. 이때, 제1 홀(32)의 직경은 0.5 내지 3mm가 바람직하다. 직경이 0.5mm보다 작으면 본 발명의 목적을 구현하기에 제1 홀(32)의 지나치게 많고, 직경이 3mm보다 크면 보호막(40)이 형성되지 않을 수 있다. Since the protective film 40 is formed by the surface tension when the first hole 32 according to the embodiment of the present invention touches the liquid, the first hole 32 is changed as the height h of the first hole 32 is changed. The diameter of) may also vary. For example, in the case of the protective film 10 coated with an acrylic adhesive having a thickness of 100 μm on a polyurethane film having a thickness of 300 μm, the height h becomes 400 μm in total. At this time, the diameter of the first hole 32 is preferably 0.5 to 3mm. If the diameter is less than 0.5mm, the first hole 32 is too large to realize the object of the present invention, and if the diameter is larger than 3mm, the protective film 40 may not be formed.
도 3 내지 도 5는 본 발명의 침투부에 형성된 홀의 형상에 대한 변형례를 나타낸 평면도이다. 여기서는 상기 홀의 형상의 일부 변형례를 도시한 것이므로, 본 발명의 범주 내에서 다양한 형태로 구현될 수 있다.3 to 5 are plan views showing a modification of the shape of the hole formed in the penetrating portion of the present invention. Here, since some modifications of the shape of the hole are illustrated, it may be implemented in various forms within the scope of the present invention.
도 3 내지 도 5를 참조하면, 제1 홀(32)의 배열을 도 1의 정방형의 배열에서 지그재그 형태로 할 수 있다(도 3). 다시 말해, 제1 홀(32)이 지그재그 형태로 교대로 반복하면서 배열될 수 있다. 또한 침투부(30)에 형성된 홀의 형상을 도 1의 원형 대신에 사각형의 형태로 하여 전체적으로 메시(mesh) 모양(도 4) 또는 도 5에서와 같이 삼각형의 형태가 서로 엇갈리면서 마주 보도록 배열할 수 있다. 도시하지는 않았지만, 삼각형 및 사각형의 형태 이외에도 육각형 형태로 이루어진 벌집 모양으로도 할 수 있다. 각이 진 부분에 액체가 쉽게 접촉하게 하여 보호막(40)이 쉽게 형성도록 하고, 외관을 고려하여 결정할 수 있다.3 to 5, the arrangement of the first holes 32 may be zigzag in the square arrangement of FIG. 1 (FIG. 3). In other words, the first holes 32 may be arranged while alternately repeating in a zigzag form. In addition, the shape of the hole formed in the penetrating portion 30 may be arranged in the shape of a square instead of the circle of FIG. 1 so that the mesh shape (FIG. 4) or the triangle shapes alternately face each other as shown in FIG. have. Although not shown, in addition to the shape of a triangle and a square, it may also be a honeycomb shape made of a hexagonal shape. The liquid may easily contact the angled portion so that the protective film 40 may be easily formed, and may be determined in consideration of the appearance.
또한, 본 발명의 홀은 원형, 삼각형, 사각형 또는 육각형 중에 선택된 어느 하나 또는 이들의 조합일 수 있다. 예를 들어, 원형 및 사각형이 조합을 이루어 복수개의 홀을 이룰 수 있다. 이는 앞에서 설명한 바와 같이, 보호막(40)의 형성의 용이함과 외관을 고려할 것이다. 또한 각각의 홀은 상기 곡선 또는 직선의 조합으로 이루어질 수도 있다. 나아가, 복수개의 홀들은 도 3에서 제시한 것처럼, 지그재그 형태로 배열될 수 있다. In addition, the hole of the present invention may be any one or a combination thereof selected from a circle, a triangle, a rectangle, or a hexagon. For example, a circle and a rectangle may be combined to form a plurality of holes. This will take into account the ease and appearance of the protective film 40 as described above. Each hole may also be made of a combination of the above curves or straight lines. Furthermore, the plurality of holes may be arranged in a zigzag form, as shown in FIG. 3.
본 발명의 실시예에 의한 보호필름(10)은 모바일 기기의 노출되어 액체가 침투하기 용이한 침투부(30)에 복수개의 홀(hole)을 형성하여 액체의 표면장력에 의해 보호막을 형성함으로써, 모바일 기기로 액체가 침투하는 것을 억제할 수 있다. 특히 사용자가 물속에 모바일 기기를 빠뜨릴 위험이 많으므로, 물에 의한 모바일 기기의 손상을 방지하는 데 더욱 효과적이다. Protective film 10 according to an embodiment of the present invention by forming a plurality of holes (hole) in the penetration portion 30 is easy to penetrate the liquid exposed to the mobile device by forming a protective film by the surface tension of the liquid, Infiltration of liquids into mobile devices can be suppressed. In particular, since there is a high risk of the user dropping the mobile device in the water, it is more effective to prevent damage to the mobile device by water.
도 6은 본 발명의 실시예에 의한 모바일 기기의 보호필름을 제조하는 장치를 개념적으로 설명하기 위한 블록도이다. 이때, 보호필름(10)은 도 1을 참조하기로 한다. 6 is a block diagram conceptually illustrating an apparatus for manufacturing a protective film of a mobile device according to an embodiment of the present invention. At this time, the protective film 10 will be referred to FIG.
도 6에 의하면, 본 발명의 제조장치는 방수부(20)를 포함한 본 발명의 보호필름(10)의 전체적인 모양을 제조하기 위한 프레스부(50)와 침투부(30)의 홀들(32, 34, 36)을 만들기 위한 피어싱부(60)를 포함하여 이루어진다. 이때, 프레스부(50)와 피어싱부(60)는 동시에 동작하여 보호필름(10)을 제조할 수도 있고, 프레스부(50)에 이어서 피어싱부(60)가 순차적으로 동작하여 보호필름(10)을 제조할 수도 있다. According to FIG. 6, the manufacturing apparatus of the present invention includes holes 32 and 34 of the press part 50 and the penetration part 30 for manufacturing the overall shape of the protective film 10 of the present invention including the waterproof part 20. And a piercing unit 60 for making 36). In this case, the press unit 50 and the piercing unit 60 may be operated at the same time to manufacture the protective film 10, and the piercing unit 60 may be sequentially operated after the press unit 50 to sequentially protect the protective film 10. It may also be prepared.
이상, 본 발명은 바람직한 실시예를 들어 상세하게 설명하였으나, 본 발명은 상기 실시예에 한정되지 않으며, 본 발명의 기술적 사상의 범위 내에서 당 분야에서 통상의 지식을 가진 자에 의하여 여러 가지 변형이 가능하다. As mentioned above, although the present invention has been described in detail with reference to preferred embodiments, the present invention is not limited to the above embodiments, and various modifications may be made by those skilled in the art within the scope of the technical idea of the present invention. It is possible.
(부호의 설명)(Explanation of the sign)
10; 보호필름 20; 방수부10; Protective film 20; Waterproof
30; 침투부 32, 34, 36; 홀30; Penetration 32, 34, 36; hall
40; 보호막 50; 프레스부40; Protective film 50; Press part
60; 피어싱부60; Piercing part

Claims (8)

  1. 모바일 기기의 화면을 보호하기 위한 보호필름에 있어서,In the protective film for protecting the screen of the mobile device,
    상기 보호필름은 상기 모바일 기기의 내부로 액체가 침투하기 용이한 침투부에 상기 액체의 표면장력에 의해 보호막을 이루는 복수개의 홀들이 형성되어 있는 것을 특징으로 하는 모바일 기기의 보호필름.The protective film is a protective film of a mobile device, characterized in that a plurality of holes forming a protective film by the surface tension of the liquid is formed in the penetration easy to penetrate the liquid inside the mobile device.
  2. 제1항에 있어서, 상기 홀의 직경은 상기 보호필름의 표면특성인 접촉각에 의해 달라질 수 있는 것을 특징으로 하는 모바일 기기의 보호필름.The protective film of claim 1, wherein the diameter of the hole may vary depending on a contact angle which is a surface characteristic of the protective film.
  3. 제1항에 있어서, 300㎛ 두께의 폴리우레탄 필름에 100㎛의 두께의 아크릴계 점착제가 코팅된 상기 보호필름에 있어서, 상기 홀의 직경은 0.5 내지 3mm인 것을 특징으로 하는 모바일 기기의 보호필름.The protective film of claim 1, wherein the protective film is coated with an acrylic pressure-sensitive adhesive having a thickness of 100 μm on a polyurethane film having a thickness of 300 μm, wherein the diameter of the hole is 0.5 to 3 mm.
  4. 제1항에 있어서, 상기 홀의 모양은 원형, 삼각형, 사각형 또는 육각형 중에 선택된 어느 하나 또는 이들의 조합인 것을 특징으로 하는 모바일 기기의 보호필름.The method of claim 1, wherein the hole is a protective film of a mobile device, characterized in that any one or a combination thereof selected from a circle, a triangle, a square or a hexagon.
  5. 제1항에 있어서, 상기 복수개의 홀은 정방형 또는 지그재그 형태로 배열되는 것을 특징으로 하는 모바일 기기의 보호필름.The protective film of claim 1, wherein the plurality of holes are arranged in a square or zigzag form.
  6. 제1항에 있어서, 상기 액체는 물인 것을 특징으로 하는 모바일 기기의 보호필름.The protective film of a mobile device according to claim 1, wherein the liquid is water.
  7. 방수부를 포함한 모바일 기기의 보호필름의 전체적인 모양을 제조하는 프레스부; 및Press unit for manufacturing the overall shape of the protective film of the mobile device including a waterproof portion; And
    상기 모바일 기기의 내부로 액체가 침투하기 용이한 침투부에 상기 액체의 표면장력에 의해 보호막이 형성되는 복수개의 홀들을 만들기 위한 피어싱부를 포함하는 모바일 기기의 보호필름의 제조장치.Apparatus for manufacturing a protective film of a mobile device including a piercing portion for making a plurality of holes in which a protective film is formed by the surface tension of the liquid in the penetration portion is easy to penetrate the liquid inside the mobile device.
  8. 제7항에 있어서, 상기 프레스부와 상기 피어싱부는 동시 또는 순차적으로 동작하여 상기 보호필름을 제조하는 모바일 기기의 보호필름의 제조장치.The apparatus of claim 7, wherein the press unit and the piercing unit operate simultaneously or sequentially to manufacture the protective film.
PCT/KR2012/009624 2012-11-07 2012-11-15 Protective film for mobile device and manufacturing device therefor WO2014073725A1 (en)

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Application Number Priority Date Filing Date Title
KR10-2012-0125111 2012-11-07
KR1020120125111A KR20140058812A (en) 2012-11-07 2012-11-07 Surface protection film for mobile device and apparatus of manufacturing the film

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WO2014073725A1 true WO2014073725A1 (en) 2014-05-15

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Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH07114518B2 (en) * 1986-06-09 1995-12-06 ソニー株式会社 Waterproof earphones
JP2000024424A (en) * 1998-07-10 2000-01-25 Toyobo Co Ltd Filter medium
JP2004083811A (en) * 2002-08-28 2004-03-18 Nitto Denko Corp Waterproofing sound-passing membrane
KR20050106377A (en) * 2005-10-20 2005-11-09 (주)동아이엔지 Mold having punch
KR20110063492A (en) * 2009-01-21 2011-06-10 닛토덴코 가부시키가이샤 Waterproofing sound-transmitting film, process for producing same, and electrical product employing same

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH07114518B2 (en) * 1986-06-09 1995-12-06 ソニー株式会社 Waterproof earphones
JP2000024424A (en) * 1998-07-10 2000-01-25 Toyobo Co Ltd Filter medium
JP2004083811A (en) * 2002-08-28 2004-03-18 Nitto Denko Corp Waterproofing sound-passing membrane
KR20050106377A (en) * 2005-10-20 2005-11-09 (주)동아이엔지 Mold having punch
KR20110063492A (en) * 2009-01-21 2011-06-10 닛토덴코 가부시키가이샤 Waterproofing sound-transmitting film, process for producing same, and electrical product employing same

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