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KR200423548Y1 - LCD protective film - Google Patents

LCD protective film Download PDF

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KR200423548Y1
KR200423548Y1 KR2020060013744U KR20060013744U KR200423548Y1 KR 200423548 Y1 KR200423548 Y1 KR 200423548Y1 KR 2020060013744 U KR2020060013744 U KR 2020060013744U KR 20060013744 U KR20060013744 U KR 20060013744U KR 200423548 Y1 KR200423548 Y1 KR 200423548Y1
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lcd
protective film
film
sensitive adhesive
pressure
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황병우
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(주)세화피앤씨
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B27/00—Layered products comprising a layer of synthetic resin
    • B32B27/06—Layered products comprising a layer of synthetic resin as the main or only constituent of a layer, which is next to another layer of the same or of a different material
    • B32B27/08—Layered products comprising a layer of synthetic resin as the main or only constituent of a layer, which is next to another layer of the same or of a different material of synthetic resin
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D3/00—Pretreatment of surfaces to which liquids or other fluent materials are to be applied; After-treatment of applied coatings, e.g. intermediate treating of an applied coating preparatory to subsequent applications of liquids or other fluent materials
    • B05D3/02—Pretreatment of surfaces to which liquids or other fluent materials are to be applied; After-treatment of applied coatings, e.g. intermediate treating of an applied coating preparatory to subsequent applications of liquids or other fluent materials by baking
    • B05D3/0254—After-treatment
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B27/00—Layered products comprising a layer of synthetic resin
    • B32B27/16—Layered products comprising a layer of synthetic resin specially treated, e.g. irradiated
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B27/00—Layered products comprising a layer of synthetic resin
    • B32B27/36—Layered products comprising a layer of synthetic resin comprising polyesters
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B33/00—Layered products characterised by particular properties or particular surface features, e.g. particular surface coatings; Layered products designed for particular purposes not covered by another single class
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B7/00—Layered products characterised by the relation between layers; Layered products characterised by the relative orientation of features between layers, or by the relative values of a measurable parameter between layers, i.e. products comprising layers having different physical, chemical or physicochemical properties; Layered products characterised by the interconnection of layers
    • B32B7/04—Interconnection of layers
    • B32B7/12—Interconnection of layers using interposed adhesives or interposed materials with bonding properties
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J5/00—Manufacture of articles or shaped materials containing macromolecular substances
    • C08J5/18—Manufacture of films or sheets
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J7/00—Chemical treatment or coating of shaped articles made of macromolecular substances
    • C08J7/04—Coating
    • C08J7/042—Coating with two or more layers, where at least one layer of a composition contains a polymer binder
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2255/00—Coating on the layer surface
    • B32B2255/10—Coating on the layer surface on synthetic resin layer or on natural or synthetic rubber layer
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2255/00—Coating on the layer surface
    • B32B2255/26—Polymeric coating
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2305/00—Condition, form or state of the layers or laminate
    • B32B2305/72—Cured, e.g. vulcanised, cross-linked
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2309/00—Parameters for the laminating or treatment process; Apparatus details
    • B32B2309/08—Dimensions, e.g. volume
    • B32B2309/10—Dimensions, e.g. volume linear, e.g. length, distance, width
    • B32B2309/105—Thickness
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2367/00—Polyesters, e.g. PET, i.e. polyethylene terephthalate
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2405/00—Adhesive articles, e.g. adhesive tapes

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  • Chemical & Material Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Organic Chemistry (AREA)
  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Materials Engineering (AREA)
  • Laminated Bodies (AREA)
  • Adhesive Tapes (AREA)

Abstract

본 고안은 액정표시장치(LCD) 보호필름에 관한 것으로, 보다 상세하게는 액정표시장치(LCD)에 부착되는 보호필름에 있어서, 상기 보호필름은 1 또는 2장의 폴리에틸렌테레프탈레이트(PET) 재질의 베이스필름과 상기 베이스필름의 상부에 위치하는 UV코팅층 및 상기 베이스필름의 하부에는 상기 LCD의 표면에 부착되도록 점착제층을 포함하되, 상기 UV코팅층은 UV코팅액과 방향제를 혼합하여 제조되고, 상기 점착제층은 실리콘 점착제인 것을 특징으로 하는 액정표시장치 보호필름에 관한 것으로, 본 고안의 LCD 보호필름은 LCD에 부착시 기포잔류 및 제거가 용이하여 LCD의 표면에 대한 밀착도가 높고, 루버필름을 포함하는 경우 개인적인 사생활이 보호될 수 있으며, UV코팅층에 방향제를 첨가하여 경시변화가 적은 상태로 장기간에 걸쳐 향기를 발산할 수 있다. The present invention relates to a liquid crystal display (LCD) protective film, and more particularly, in the protective film attached to the liquid crystal display (LCD), the protective film is a base of one or two polyethylene terephthalate (PET) material The UV coating layer positioned on the upper portion of the film and the base film and the lower portion of the base film includes a pressure-sensitive adhesive layer to adhere to the surface of the LCD, the UV coating layer is prepared by mixing a UV coating liquid and a fragrance, the pressure-sensitive adhesive layer is The present invention relates to a protective film for a liquid crystal display device, which is a silicone adhesive. The LCD protective film of the present invention has a high adhesion to the surface of the LCD due to easy bubble residue and removal when attached to the LCD, and includes a louver film. Privacy can be protected, and fragrance can be emitted over a long period of time with little change over time by adding a fragrance to the UV coating layer.

액정표시장치(LCD), 보호필름, 루버, 점착제, 방향제, 컬러코팅 LCD, protective film, louver, adhesive, fragrance, color coating

Description

액정표시장치 보호필름{PROTECTING FILM FOR LCD}LCD protective film {PROTECTING FILM FOR LCD}

도 1은 본 고안의 일실시예에 따른 LCD 보호필름의 단면도1 is a cross-sectional view of the LCD protective film according to an embodiment of the present invention

＜주요 도면부호에 대한 간단한 설명＞<Brief description of the major reference numerals>

10: PET 베이스필름 20 루버필름 10: PET base film 20 louver film

30: UV코팅층 40:점착제층 30: UV coating layer 40: adhesive layer

100: 보호필름 100: protective film

본 고안은 액정표시장치(LCD) 보호필름에 관한 것으로, 보다 상세하게는 액정표시장치(LCD)에 부착되는 보호필름에 있어서, 상기 보호필름은 1 또는 2장의 폴리에틸렌테레프탈레이트(PET) 재질의 베이스필름과 상기 베이스필름의 상부에 위치하는 UV코팅층 및 상기 베이스필름의 하부에는 상기 LCD의 표면에 부착되도록 점착제층을 포함하되, 상기 UV코팅층은 UV코팅액과 방향제를 혼합하여 제조되고, 상기 점착제층은 실리콘 점착제인 것을 특징으로 하는 액정표시장치 보호필름에 관한 것이다.The present invention relates to a liquid crystal display (LCD) protective film, and more particularly, in the protective film attached to the liquid crystal display (LCD), the protective film is a base of one or two polyethylene terephthalate (PET) material The UV coating layer positioned on the upper portion of the film and the base film and the lower portion of the base film includes a pressure-sensitive adhesive layer to adhere to the surface of the LCD, the UV coating layer is prepared by mixing a UV coating liquid and a fragrance, the pressure-sensitive adhesive layer is It relates to a liquid crystal display protective film, characterized in that the silicone pressure-sensitive adhesive.

액정표시장치(LCD)는 현재 TV, PC 모니터, 휴대전화 등 모든 디스플레이에 주로 사용될 정도로 광범위하게 사용되고 있다. 이러한 LCD의 전면부는 유리기판과 프리즘 필터, 그리고 상기 유리기판 및 필터를 보호하기 위한 합성수지재질의 보호층 등을 포함하고 있다. 상기 보호층은 하드코팅되어 외부의 충격으로부터 스크래치(scratch) 등이 발생하는 것을 방지하도록 되어 있지만 그 기능이 완전하지는 못하고, 흠집이 발생하는 경우에는 일반사용자가 상기 보호층을 LCD로부터 분리하는 것은 불가능한 일이기 때문에 이러한 일을 방지하려고 LCD의 전면부에 별도의 보호필름을 부착하기도 한다.Liquid crystal displays (LCDs) are currently being used widely in all displays such as TVs, PC monitors and mobile phones. The front surface of the LCD includes a glass substrate, a prism filter, and a protective layer made of a synthetic resin material for protecting the glass substrate and the filter. The protective layer is hard-coated to prevent scratches and the like from external impacts, but its function is not perfect, and in the event of a scratch, it is impossible for a general user to separate the protective layer from the LCD. To prevent this, a separate protective film may be attached to the front of the LCD.

그러나, 종래의 보호필름은 단순히 액정화면의 보호라는 측면에서 진행되어 왔을 뿐 다른 기능적인 면을 부가하는 데는 상당히 미흡한 점이 있었다. 또한, 종래의 액정보호필름은 용이한 탈착을 염두에 두고 LCD에 부착되는 면에 점착제를 도포하여 점착제층을 형성하는데, 상기 점착제로는 아크릴계 점착제가 많이 사용된다. 그러나, 상기 아크릴계 점착제를 도포한 보호필름을 LCD상에 부착할 때 숙련된 사람이 부착하지 않으면 부착면에 기포가 발생하는 경우가 많고 그 제거가 어렵기 때문에 부착된 필름을 제거하고 재시공해야 하는 등의 문제점이 있다.However, the conventional protective film has only been progressed in terms of simply protecting the LCD screen, and there was a significant deficiency in adding other functional aspects. In addition, the conventional LCD protective film is to form a pressure-sensitive adhesive layer by applying a pressure-sensitive adhesive to the surface attached to the LCD with easy desorption in mind, the acrylic pressure-sensitive adhesive is used a lot. However, when attaching the acrylic adhesive-coated protective film on the LCD, if a skilled person does not attach, bubbles are often generated on the attaching surface, and the removal of the attached film is difficult because the removal is difficult. There is a problem.

따라서, 본 고안이 이루고자 하는 기술적 과제는, LCD 표면에 부착하는 경우 기포발생이 원천적으로 적고 기포가 발생한 경우에도 그 제거가 용이하면서도, 사용자 주위의 사람들의 엿보기를 방지하며, 방향제 첨가 등으로 각종 기능을 부여한 LCD 보호필름을 제공하는 것이다. Accordingly, the technical problem to be achieved by the present invention is that when the bubble is attached to the LCD surface, the bubble generation is fundamentally small and the bubble is easily removed even when the bubble is generated. It is to provide LCD protective film with function.

상기 기술적 과제를 달성하기 위하여 본 고안은, 액정표시장치(LCD)에 부착되는 보호필름에 있어서, 상기 보호필름은 1 또는 2장의 폴리에틸렌테레프탈레이트(PET) 재질의 베이스필름과 상기 베이스필름의 상부에 위치하는 UV코팅층 및 상기 베이스필름의 하부에는 상기 LCD의 표면에 부착되도록 점착제층을 포함하되, 상기 UV코팅층은 UV코팅액과 방향제를 혼합하여 제조되고, 상기 점착제층은 실리콘 점착제인 것을 특징으로 하는 액정표시장치 보호필름을 제공한다.In order to achieve the above technical problem, the present invention provides a protective film attached to a liquid crystal display (LCD), wherein the protective film is formed on one or two polyethylene terephthalate (PET) base films and on the base film. Located under the UV coating layer and the base film comprises a pressure-sensitive adhesive layer to be attached to the surface of the LCD, the UV coating layer is prepared by mixing a UV coating liquid and a fragrance, the pressure-sensitive adhesive layer is a liquid crystal, characterized in that the silicone adhesive Provide a display protective film.

또한, 본 고안은 상기 베이스필름의 사이에 루버필름을 더 포함한 것을 특징으로 하는 액정표시장치 보호필름을 제공한다.In addition, the present invention provides a liquid crystal display protective film, characterized in that it further comprises a louver film between the base film.

또한, 본 고안은 상기 실리콘 점착제층이 30 내지 100㎛ 범위로 형성된 것을 특징으로 하는 액정표시장치 보호필름을 제공한다.In addition, the present invention provides a liquid crystal display device protective film, characterized in that the silicone pressure-sensitive adhesive layer is formed in a range of 30 to 100㎛.

또한, 본 고안은 상기 실리콘 점착제층이 실리콘 점착성분 100중량부에 대하여 가교제 0.1 내지 6중량부 및 촉매 0.1 내지 6중량부로 이루어진 점착제 조성물을 PET재질의 베이스필름상에 도포한 후 140 내지 200℃의 온도에서 1 내지 5분간 경화하여 형성된 것을 특징으로 하는 액정표시장치 보호필름을 제공한다.In addition, the present invention is a silicone pressure-sensitive adhesive layer after applying the pressure-sensitive adhesive composition consisting of 0.1 to 6 parts by weight of the crosslinking agent and 0.1 to 6 parts by weight of the catalyst based on 100 parts by weight of the silicone adhesive component on the PET film base film of 140 to 200 ℃ It provides a liquid crystal display device protective film, characterized in that formed by curing for 1 to 5 minutes at a temperature.

이하에서 본 고안에 대해 첨부된 도면을 참조하여 보다 상세하게 설명한다.Hereinafter, with reference to the accompanying drawings for the subject innovation will be described in more detail.

도 1은 본 고안의 일실시예에 따른 LCD 보호필름(100)의 단면도이다. 도 1에서 보듯, 본 고안의 일실시예에 따른 LCD 보호필름(100)은 1 또는 2장의 폴리에틸렌테레프탈레이트(PET) 재질의 베이스필름(10)과 상기 베이스필름(10)의 상부에 위치하는 UV코팅층(30) 및 상기 베이스필름(10)의 하부에는 상기 LCD의 표면에 부착되도록 점착제층(40)을 포함한다. 폴리에틸렌 테레프탈레이트(PET) 재질은 기계 적 강도가 우수하고 투명도가 높은 범용수지의 일종으로, 본 고안의 LCD 보호필름(100)의 베이스필름(10)으로 사용된다. 본 고안의 LCD 보호필름(100)은 상기 PET 재질의 베이스필름(10)을 적어도 1 또는 2장 포함한다. 일반적인 경우에는 단일한 베이스필름(10)층을 사용하지만, 루버필름(20)을 포함하는 경우에는 2장의 베이스필름(10)층이 상기 루버필름(20)을 사이에 두고 샌드위치형태로 만들어 지는 것이 바람직하기 때문이다. 1 is a cross-sectional view of the LCD protective film 100 according to an embodiment of the present invention. As shown in Figure 1, the LCD protective film 100 according to an embodiment of the present invention is one or two polyethylene terephthalate (PET) base film 10 and UV located on the base film 10 The lower portion of the coating layer 30 and the base film 10 includes an adhesive layer 40 to adhere to the surface of the LCD. Polyethylene terephthalate (PET) material is a kind of general purpose resin having excellent mechanical strength and high transparency, and is used as the base film 10 of the LCD protective film 100 of the present invention. LCD protective film 100 of the present invention includes at least one or two base film 10 of the PET material. In general, a single base film 10 layer is used. However, when the louver film 20 is included, two base film 10 layers are sandwiched with the louver film 20 interposed therebetween. It is because it is preferable.

본 고안의 LCD 보호필름(100)은 UV코팅층(30)을 포함한다. 전술한 바와 같이, 상기 UV코팅층(30)은 베이스필름(10)의 상부에 형성되어 외부의 충격으로부터 필름 표면의 스크래치 등 물리적 변화를 방지하는 역할을 수행한다. 상기 UV코팅층(30)은 UV코팅액과 방향제를 혼합하여 제조된다. 상기 UV코팅액 및 방향제는 특별히 제한되지는 않으며, 그 혼합비 등은 UV경화에 영향을 미치지 않는 범위 내에서 조절 가능하다. 상기 UV코팅액 등은 본 고안이 속하는 기술분야에서 통상의 지식을 가진 자라면 모두 알 수 있는 것이므로, 본 명세서에서 더 이상의 상세한 설명은 하지 않기로 한다. 상기 UV코팅층(30)에 방향제를 첨가하게 되면, 가교된 조직 내에 방향성분이 트랩(trapped)된 형태로 존재하게 되어 경시변화가 적고 향의 지속시간이 길어지게 된다. LCD protective film 100 of the present invention includes a UV coating layer (30). As described above, the UV coating layer 30 is formed on the base film 10 to prevent physical changes such as scratches on the surface of the film from external impact. The UV coating layer 30 is prepared by mixing the UV coating liquid and the fragrance. The UV coating liquid and the fragrance is not particularly limited, the mixing ratio and the like can be adjusted within a range that does not affect the UV curing. The UV coating solution, etc. are all known to those of ordinary skill in the art to which the present invention belongs, so no further detailed description will be given herein. When the fragrance is added to the UV coating layer 30, the fragrance component is present in a trapped form in the cross-linked tissue so that the change over time is small and the fragrance duration is long.

본 고안의 LCD 보호필름(100)의 베이스필름(10) 하부에는 상기 LCD의 표면에 부착되도록 점착제층(40)을 형성한다. 전술한 바와 같이, 종래에 사용되는 아크릴계 점착제는 기포발생 및 기포제거의 어려움 등의 문제가 있다. 따라서, 본 고안은 LCD 보호필름(100)의 점착제층(40)을 구성하는 점착제로 실리콘 성분의 점착제 를 선택하였다. 실리콘 점착제는 퍼짐성과 젖음성이 좋고 표면장력이 낮아 기포의 발생을 원천적으로 방지하는 역할을 수행한다. 또한, 상기 실리콘 점착제층(40)은 30 내지 100㎛두께 범위로 형성되는 것이 바람직하다. 상기 실리콘 점착제층(40)이 형성된 보호필름(100)을 사용하는 경우에도 간혹 기포가 형성될 수 있는데, 상기 두께 범위로 점착제층(40)이 형성되는 경우 기포가 형성된 부위를 필름 바깥쪽으로 밀어내 제거를 하게 되는데, 상기 실리콘 점착제가 탄성이 우수하기는 하지만 점착제층(40)의 두께가 30㎛ 미만이면 탄성이 떨어져 기포의 제거가 어렵기 때문이다. 종래의 LCD 보호필름 등에 사용된 아크릴계 점착제의 경우 그 성질 자체가 기포의 발생을 방지할 수 없으며, 그 도포 두께도 약 20㎛ 정도였기 때문에 생성된 기포의 제거에도 어려움이 있는데 비해 본 고안의 LCD 보호필름(100)에 적용된 실리콘 점착제층(40)의 경우 30㎛ 이상의 두께로 도포되어 기포의 제거가 용이하다. 반면, 점착제층(40)의 두께가 100㎛를 초과하게 되면 그 효과의 상승이 미미하고 원가상승 요인이 되기 때문에 바람직하지 않다. 전술한 바와 같이, 실리콘 점착제는 탄성이 뛰어나고 표면장력이 적은 특성을 가지고 있다. 다만, 상기 실리콘 점착제를 PET재질의 베이스필름(10)에 사용할 경우 PET재질과의 접착성이 좋지 않은 문제가 있다. 본 고안자는 PET 베이스필름(10)과 실리콘 점착제층(40)간에 가교반응을 시켜 상기 문제를 해결하였다. 본 고안의 일실시예에 따르면, 상기 실리콘 점착제층(40)은 실리콘 점착성분 100중량부에 대하여 가교제 0.1 내지 6중량부 및 촉매 0.1 내지 6중량부로 이루어진 점착제 조성물을 PET재질의 베이스필름(10)상에 도포한 후 140 내지 200℃의 온도에서 1 내지 5분간 경화하여 형성할 수 있다. 상 기 가교제 및 촉매 성분 등은 특별히 제한되는 것은 아니며, 공지의 실리콘 가교제 및 촉매를 사용할 수 있다. 상기와 같이 점착제층(40)이 형성되면 이형지를 부착하여 사용전에 상기 이형지를 제거하고 LCD 표면에 부착할 수 있음은 물론이다.A pressure-sensitive adhesive layer 40 is formed below the base film 10 of the LCD protective film 100 of the present invention to adhere to the surface of the LCD. As described above, the acrylic pressure-sensitive adhesives used in the related art have problems such as bubble generation and difficulty in bubble removal. Therefore, the present invention selected the pressure-sensitive adhesive of the silicone component as the pressure-sensitive adhesive constituting the pressure-sensitive adhesive layer 40 of the LCD protective film 100. The silicone pressure-sensitive adhesive has a spreading and wettability and a low surface tension to prevent bubbles from occurring. In addition, the silicone pressure-sensitive adhesive layer 40 is preferably formed in a thickness range of 30 to 100㎛. Even in the case of using the protective film 100 having the silicon adhesive layer 40 formed therein, bubbles may sometimes be formed. When the pressure-sensitive adhesive layer 40 is formed in the thickness range, the bubble-formed portion is pushed out of the film. Although the silicone pressure-sensitive adhesive is excellent in elasticity, if the thickness of the pressure-sensitive adhesive layer 40 is less than 30 μm, it is difficult to remove bubbles due to low elasticity. In the case of the acrylic pressure-sensitive adhesive used in the conventional LCD protective film, the property itself is not able to prevent the generation of bubbles, the coating thickness is about 20㎛ because it is difficult to remove the generated bubbles, while the LCD protection of the present invention In the case of the silicone pressure-sensitive adhesive layer 40 applied to the film 100 is applied to a thickness of 30㎛ or more it is easy to remove the bubbles. On the other hand, if the thickness of the pressure-sensitive adhesive layer 40 exceeds 100㎛ it is not preferable because the increase of the effect is small and the cost increase factor. As described above, the silicone pressure sensitive adhesive has excellent elasticity and low surface tension. However, when the silicone adhesive is used in the base film 10 of the PET material, there is a problem in that the adhesion with the PET material is not good. The present inventors solved the problem by performing a crosslinking reaction between the PET base film 10 and the silicone pressure-sensitive adhesive layer 40. According to an embodiment of the present invention, the silicone pressure-sensitive adhesive layer 40 has a pressure-sensitive adhesive composition composed of 0.1 to 6 parts by weight of crosslinking agent and 0.1 to 6 parts by weight of catalyst based on 100 parts by weight of the silicone adhesive component. After coating on, it may be formed by curing for 1 to 5 minutes at a temperature of 140 to 200 ℃. The crosslinking agent, the catalyst component and the like are not particularly limited, and known silicone crosslinking agents and catalysts can be used. When the pressure-sensitive adhesive layer 40 is formed as described above, the release paper may be attached to remove the release paper before use, and may be attached to the LCD surface.

본 고안의 LCD 보호필름(100)은 2장의 베이스필름(10) 사이에 루버필름(20)을 더 포함할 수 있다. 루버필름(20, louver film)은 투명재질과 불투명재질이 교호적층되어 있는 구조로 되어 시야각을 조절할 수 있는 필름으로, 보안이 필요한 디스플레이 창 등에 사용되고 있다. 상기 루버필름(20)의 구조나 재질 등은 본 고안의 출원인이 출원하여 등록된 특허 제500477호 또는 공지의 문헌에 개시된 것과 같을 수 있으며, 특별히 제한되는 것은 아니다. The LCD protective film 100 of the present invention may further include a louver film 20 between two base films 10. Louver film (20, louver film) is a film that can be adjusted to the viewing angle is a structure in which a transparent material and an opaque material is alternately laminated, it is used for display windows that require security. The structure or material of the louver film 20 may be the same as that disclosed in Patent No. 500477 or a known document filed by the applicant of the present invention, and is not particularly limited.

이상에서 살펴본 바와 같이 본 고안은, LCD 표면에 부착시 기포잔류 및 제거가 용이하여 LCD의 표면에 대한 밀착도가 높고, 루버필름을 포함하는 경우 개인적인 사생활이 보호될 수 있으며, UV코팅층에 방향제를 첨가하여 경시변화가 적은 상태로 장기간에 걸쳐 향기를 발산할 수 있는 LCD 보호필름을 제공한다. As described above, the present invention is easy to retain and remove bubbles when attached to the LCD surface, the adhesion to the surface of the LCD is high, and when the louver film is included, personal privacy can be protected, and fragrance is added to the UV coating layer. It provides an LCD protective film that can emit fragrance over a long period of time with little change over time.

앞에서 도시되고 설명된 본 고안의 일실시예는 본 고안의 기술적 사상을 한정하는 것으로 해석되어서는 안 된다. 본 고안의 보호범위는 청구범위에 기재된 사항에 의하여만 제한되고, 본 고안의 기술분야에서 통상의 지식을 가진 자는 본 고안의 기술적 사상을 다양한 형태로 개량 변경하는 것이 가능하다. 따라서 이러한 개량 및 변경은 통상의 지식을 가진 자에게 자명한 것인 한 본 고안의 보호범위에 속하게 될 것이다.One embodiment of the present invention shown and described above should not be construed as limiting the technical spirit of the present invention. The scope of protection of the present invention is limited only by the matters described in the claims, and those skilled in the art can change and change the technical idea of the present invention in various forms. Therefore, such improvements and modifications will fall within the protection scope of the present invention as long as it will be apparent to those skilled in the art.

Claims (4)

액정표시장치(LCD)에 부착되는 보호필름에 있어서, In the protective film attached to the liquid crystal display (LCD), 상기 보호필름은 1 또는 2장의 폴리에틸렌테레프탈레이트(PET) 재질의 베이스필름과 상기 베이스필름의 상부에 위치하는 UV코팅층 및 상기 베이스필름의 하부에는 상기 LCD의 표면에 부착되도록 점착제층을 포함하되, 상기 UV코팅층은 UV코팅액과 방향제를 혼합하여 제조되고, 상기 점착제층은 실리콘 점착제인 것을 특징으로 하는 액정표시장치 보호필름.The protective film may include one or two polyethylene terephthalate (PET) base films, a UV coating layer positioned on the base film, and an adhesive layer on the bottom of the base film to adhere to the surface of the LCD. The UV coating layer is prepared by mixing a UV coating liquid and a fragrance, wherein the pressure-sensitive adhesive layer is a silicone pressure-sensitive adhesive protective film. 제1항에 있어서,The method of claim 1, 상기 베이스필름의 사이에 루버필름을 더 포함한 것을 특징으로 하는 액정표시장치 보호필름.And a louver film between the base film. 제1항 또는 제2항에 있어서,The method according to claim 1 or 2, 상기 실리콘 점착제층은 30 내지 100㎛두께 범위로 형성된 것을 특징으로 하는 액정표시장치 보호필름.The silicone pressure-sensitive adhesive layer is a liquid crystal display device protective film, characterized in that formed in the thickness range of 30 to 100㎛. 제3항에 있어서,The method of claim 3, 상기 실리콘 점착제층은 실리콘 점착성분 100중량부에 대하여 가교제 0.1 내지 6중량부 및 촉매 0.1 내지 6중량부로 이루어진 점착제 조성물을 PET재질의 베이 스필름상에 도포한 후 140 내지 200℃의 온도에서 1 내지 5분간 경화하여 형성된 것을 특징으로 하는 액정표시장치 보호필름.The silicone pressure-sensitive adhesive layer is coated with a pressure-sensitive adhesive composition consisting of 0.1 to 6 parts by weight of the crosslinking agent and 0.1 to 6 parts by weight of the catalyst based on 100 parts by weight of the silicone adhesive component on a PET film base film 1 to 1 at a temperature of 140 to 200 ℃ LCD protective film, characterized in that formed by curing for 5 minutes.
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Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100863136B1 (en) * 2007-05-10 2008-10-15 조병영 LCD protection window with thin film and hardening resin layer
KR200450080Y1 (en) * 2008-07-11 2010-09-02 (주)세화피앤씨 Skin Film for Laptop
KR101197743B1 (en) 2010-10-08 2012-11-06 백철재 Bubble removal pad for attaching screen protection film
KR200474976Y1 (en) * 2012-06-26 2014-10-31 주식회사 유엠티랩스 Film for mobile equipment with fragrance diffusion
KR101517681B1 (en) 2013-08-02 2015-05-06 류재철 LCD Protection Film for Protecting Display
KR20170111422A (en) * 2016-03-28 2017-10-12 주식회사 에스티이케이 Display protection film for shock absorbing
KR102165201B1 (en) * 2020-06-22 2020-10-13 주식회사 세화 Privacy filter
US11329103B2 (en) 2019-12-12 2022-05-10 Samsung Display Co., Ltd. Display apparatus including a blocking portion for reducing reflection of light

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100863136B1 (en) * 2007-05-10 2008-10-15 조병영 LCD protection window with thin film and hardening resin layer
KR200450080Y1 (en) * 2008-07-11 2010-09-02 (주)세화피앤씨 Skin Film for Laptop
KR101197743B1 (en) 2010-10-08 2012-11-06 백철재 Bubble removal pad for attaching screen protection film
KR200474976Y1 (en) * 2012-06-26 2014-10-31 주식회사 유엠티랩스 Film for mobile equipment with fragrance diffusion
KR101517681B1 (en) 2013-08-02 2015-05-06 류재철 LCD Protection Film for Protecting Display
KR20170111422A (en) * 2016-03-28 2017-10-12 주식회사 에스티이케이 Display protection film for shock absorbing
US11329103B2 (en) 2019-12-12 2022-05-10 Samsung Display Co., Ltd. Display apparatus including a blocking portion for reducing reflection of light
US11974483B2 (en) 2019-12-12 2024-04-30 Samsung Display Co., Ltd. Display apparatus including blocking material for reducing reflection of light
KR102165201B1 (en) * 2020-06-22 2020-10-13 주식회사 세화 Privacy filter
US11656827B2 (en) 2020-06-22 2023-05-23 SEWHA Co., Ltd Privacy filter

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