KR200456840Y1 - Surface protection film for display device - Google Patents

Surface protection film for display device Download PDF

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Publication number
KR200456840Y1
KR200456840Y1 KR2020110002924U KR20110002924U KR200456840Y1 KR 200456840 Y1 KR200456840 Y1 KR 200456840Y1 KR 2020110002924 U KR2020110002924 U KR 2020110002924U KR 20110002924 U KR20110002924 U KR 20110002924U KR 200456840 Y1 KR200456840 Y1 KR 200456840Y1
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KR
South Korea
Prior art keywords
layer
synthetic resin
display device
protection film
surface protection
Prior art date
Application number
KR2020110002924U
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Korean (ko)
Inventor
임남일
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임남일
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Application filed by 임남일 filed Critical 임남일
Priority to KR2020110002924U priority Critical patent/KR200456840Y1/en
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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
    • 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
    • B32B27/00—Layered products comprising a layer of synthetic resin
    • B32B27/40—Layered products comprising a layer of synthetic resin comprising polyurethanes
    • 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
    • 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
    • C09J133/00—Adhesives based on homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by only one carboxyl radical, or of salts, anhydrides, esters, amides, imides, or nitriles thereof; Adhesives based on derivatives of such polymers
    • 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
    • C09J183/00—Adhesives based on macromolecular compounds obtained by reactions forming in the main chain of the macromolecule a linkage containing silicon, with or without sulfur, nitrogen, oxygen, or carbon only; Adhesives based on derivatives of such polymers
    • C09J183/04—Polysiloxanes
    • 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
    • B32B2457/00—Electrical equipment
    • B32B2457/20—Displays, e.g. liquid crystal displays, plasma displays

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  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Laminated Bodies (AREA)

Abstract

The present invention is a surface protection film for a display device, the synthetic resin substrate layer; An adhesive layer formed on the back surface of the synthetic resin substrate layer; A hard coating layer formed on a surface of the synthetic resin substrate layer; And a paint layer formed on the surface of the hard coating layer, wherein the paint layer is formed by using a silk printing ink or UV paint.

Description

Surface protection film for display device

The present invention relates to a surface protection film for a display device, and more particularly, a coating layer having a color or pattern may be formed on a hard coated synthetic resin film, thereby simplifying the process and reducing manufacturing costs. The present invention relates to a surface protection film for a display device, in which aesthetics are improved to have color clarity or excellent texture.

Recently, with the advent of the rapid information age, various mobile devices including smart phones and smart pads, various display devices such as MP3 players, PDPs, and navigation devices are being used. However, these are mostly expensive electronics, and users are feeling the need to protect their display devices from scratches and external shocks and to enhance their appearance.

Therefore, various types of surface protection films for display devices are used. Conventional surface protection films are provided with color or pattern on the surface protection film by transferring or screen printing on the surface or the back side of the thin synthetic resin PET film. It is common to form by hard-coating.

Here, the hard coating layer formed on the surface of the PET film has a high surface protective film for the purpose of compensating for the problem that the surface of the surface protective film is scratched or stamped by external stimuli such as fingers, nails or pens. It forms by hardening | curing after apply | coating a well-known hard coating liquid so that it may have surface hardness, scratch resistance, or antifouling property.

The surface protective film having the hard coating layer formed on such a surface is required to add color or pattern to the surface protective film in order to improve the aesthetic effect, so that the transfer or printing on the resin film substrate of the surface protective film before the hard coating layer is formed. By forming the color or pattern in advance by the last step to form a hard coating layer.

Therefore, if a synthetic resin film having a hard coating layer formed thereon can be used to form a color or a pattern on its surface, not only the vivid color or texture can be improved but also the process can be reduced, thereby reducing manufacturing costs.

The present invention can be formed with a coating layer having a color or pattern on top of the hard-coated resin film not only simplifies the process and reduces manufacturing costs, but also improves the aesthetics to have a vivid color or excellent texture To provide a surface protective film for.

The present invention is a surface protection film for a display device, the synthetic resin substrate layer; An adhesive layer formed on the back surface of the synthetic resin substrate layer; A hard coating layer formed on a surface of the synthetic resin substrate layer; And a paint layer formed on the surface of the hard coating layer, wherein the paint layer is formed by using a silk printing ink or UV paint.

The synthetic resin base layer may be made of PET or urethane material.

In addition, the paint layer may be formed in some sections of the hard coating layer.

The paint layer may have an embossing pattern, and a hologram film layer or a metal deposition layer may be further formed between the synthetic resin substrate layer and the adhesive layer.

According to the present invention, a paint layer having a color or pattern may be formed on the hard-coated synthetic resin film, which not only simplifies the process and reduces manufacturing cost but also improves aesthetics to have color clarity or excellent texture. A surface protective film for a display device is provided.

1 is a cross-sectional view showing the layered structure of the surface protection film for a display device according to the present invention.
2A and 2B are views illustrating a surface protection film for a display device formed with the layered structure of FIG. 1.
3a and 3b is a view showing a layered structure of the surface protection film for a display device according to another embodiment of the present invention.
4 is a diagram illustrating a surface protection film for a display device formed in accordance with FIGS. 3A and 3B.
5 is a cross-sectional view showing the layered structure of the surface protection film for a display device according to another embodiment of the present invention.

Hereinafter, the present invention will be described in detail with reference to the drawings.

1 is a cross-sectional view showing the layered structure of the surface protection film for a display device according to the present invention.

The surface protection film for a display device according to the present invention includes a pressure-sensitive adhesive layer 120 formed on the back surface of the synthetic resin substrate layer 110 and the synthetic resin substrate layer 110, and a hard coating layer 130 formed on the surface of the synthetic resin substrate layer 110. ) And a coating layer 140 formed in a portion of the hard coating layer 130.

Synthetic resin base layer 110 is a transparent synthetic resin film, the thickness is preferably 50 ~ 125㎛ in consideration of the optical properties, it is preferable that the PET material is selected to have heat resistance and corrosion resistance.

The adhesive layer 120 is preferably formed of an acrylic or silicone adhesive so that the surface protection film is easily attached to the display device, and the thickness of the adhesive layer 120 is preferably 10 to 25 μm.

As described above, the hard coating layer 130 is formed to secure scratch resistance and antifouling property on the surface of the synthetic resin substrate layer 110, and is formed by applying a hard coating liquid, and is formed to a thickness of 2 to 8 μm. Do.

The paint layer 140 is formed on the hard coating layer 130. The paint layer 140 is formed of a silk print layer or a UV paint layer, and as shown in FIG. 2, the paint layer 140 is formed in the decoration part A except for the display part B. This is because the display unit B is a surface on which the content to be displayed does not interfere with the screen display unless a color or a pattern is formed.

The silk printing layer formed of the coating layer 140 is formed by applying a known silk printing method. In other words, the silk printing layer is formed by placing a patterned masking film on the surface of the hard coating layer 130 and pushing out the silk printing ink using a squeegee to obtain a single or multicolor silk printing layer. At this time, the manufacturer's mark or promotional text or pattern can be simply formed by silk printing, there is also an advantage that the surface protection film according to the present invention can be used for promotion.

According to the present embodiment, the silk printing layer is formed only on a part of the surface of the hard coating layer 130, but by appropriately adjusting the composition, curing method, and curing time of the silk printing ink, the anchorage with the hard coating layer 130 is promoted to be clear. The silk printing layer can be formed. Therefore, the bleeding or coarsening of the color or pattern can be prevented.

An example of a surface protective film having the coating layer 140 formed of a silk printing layer is shown in FIG. 2A. Referring to the drawings, it can be seen that the silk printing layer by the silk printing method is clearly formed in the decoration portion (A) of the surface protection film. In other words, the decoration portion (A) is formed with a plurality of through holes (h) and cutouts (d) to facilitate the attachment of the surface protection film without disturbing the use of the display device, the operation of the display device A plurality of operation patterns c are formed. The shape of the operation pattern (c) may vary depending on the manufacturer of the display device, but according to the present invention, when the decoration unit (A) is formed by the silk printing method, the operation pattern (c) may be simply formed. In addition, even when the operation pattern (c) is finely formed using thin lines on the small display device, it is possible to print clearly without bleeding of color or breaking of lines.

The UV paint layer formed as the paint layer 140 using the UV paint is formed through the following process.

First, a mold having an intaglio portion for forming an image or a pattern is prepared. Next, a UV paint having a UV (Ultra Violet) reaction in the intaglio portion of the mold is applied to the entire upper surface of the mold. Thereafter, the synthetic resin film having the hard coating layer 130 formed on the synthetic resin substrate layer 110 is placed on the upper surface of the mold to be placed thereon, and is flat and compressed using a pressing roller. At this time, it can be compressed evenly over the entire surface by the pressing operation through the pressing roller, the image or pattern formed on the intaglio portion of the mold is transferred to the UV paint side and the synthetic film and the UV paint are bonded to form a bonding relationship do.

The UV coating and the synthetic resin film which are in the state of mutual adhesion bonding through the crimping operation are irradiated with ultraviolet rays to cure the UV coating by reacting with the ultraviolet rays. The reaction can be made.

Subsequently, the synthetic resin film is detached from the mold and separated, and then cut into a shape suitable for each display device, thereby obtaining a surface protection film having a UV coating layer formed thereon as shown in FIG. . As shown in the figure (A), an embossed pattern is formed corresponding to the image or pattern formed on the intaglio portion of the mold.

Images or patterns formed on the intaglio portion of the mold can be processed using a variety of methods such as laser, hairline or etching, CNC, etc., it is possible to form a precise pattern. The image may include, for example, a trademark label or a logo of the corresponding display device, and the pattern may include various patterns including elaborate patterns such as holograms and spins. The engraved part may include a very fine degree of the finely embossed image or pattern, and by expressing the intaglio and the embossed image or pattern together, it is possible to give a dual expression and more excellent three-dimensional impression.

 At this time, if the manufacturer's mark or promotional phrases or drawings as shown in the insertion when forming the intaglio, it can be simply produced when forming the UV paint layer, there is also an advantage that can be used for the surface protection film according to the present invention for promotion.

According to this embodiment, the UV coating layer is formed only on a portion of the surface of the hard coating layer 130, but by adjusting the composition, the curing method and the curing time of the UV coating properly by promoting the anchorage with the hard coating layer 130, the clear UV Formation of the coating layer becomes possible. Therefore, the phenomenon that the image or pattern is blurred or coarse can be prevented.

In addition, as described with reference to FIG. 2A, a plurality of manipulation patterns c for manipulating the display apparatus may be formed in the decoration unit A of FIG. 2B together with the plurality of through holes h and the cutout d. According to the present exemplary embodiment, even when such an operation pattern c is finely formed by using a thin line in a small display device, it can be clearly formed.

Thus, the process itself is formed by forming a silk print layer or UV paint layer as the paint layer 140 on top of the hard coating layer by using a fabric that has already been hard-coated with the decoration part of the surface protection film attached to protect the liquid crystal of the display device. It can also reduce the manufacturing cost. In addition, since the paint layer is directly formed on the surface of the hard coating layer 130, it is possible to form a luxurious aesthetic having a vivid color or an excellent texture.

3 is a view showing another embodiment of the present invention. According to (a) and (b) of FIG. 3 shown in a perspective view and a cross-sectional view, a hard coating layer 130 is formed on the synthetic resin substrate layer 110, and the front surface of the surface protection film is formed on the hard coating layer 130. A paint layer 140 having an embossed pattern is formed over. The adhesive layer 120 is formed on the bottom of the synthetic resin substrate layer 110. The difference from the embodiment of FIG. 1 is that the paint layer 140 is not formed only in some sections of the surface protection film, but is formed over the entire surface with an embossing pattern.

The coating layer 140 is formed by applying a UV paint to the mold as described in the embodiment of FIG. 1 and then curing the synthetic resin film, which is arranged to cover the top of the mold, by pressing the roller. The UV coating layer formed on the upper hard coating layer 130 of the synthetic resin substrate layer 110 is formed to have a convex embossing pattern. Here, the synthetic resin base layer 110 is preferably used urethane (TPU).

Referring to FIG. 4, an embossing pattern is formed as described above, and a surface protection film is attached to the rear side of the display apparatus, that is, the side where the LCD screen is not formed. In the surface protection film shown in FIG. 4, the embossing pattern is formed over the entire area of the surface protection film, thereby not only contributing to the improvement of aesthetics, but also being attached to surround the back of the smooth display device, thereby causing the display device to slide during use. There is also an additional advantage to avoid this. The surface protection film shown in Figure 4 is easy to attach and there are a plurality of incisions (c) to the through-hole (h) is formed so that there is no obstacle in use.

According to this embodiment, although the embossing pattern is formed over the entire surface of the hard coating layer 130 as the coating layer 140, by adjusting the composition, the curing method and the curing time of the UV coating properly with the hard coating layer 130 Anchorage is promoted to enable clear pattern formation. Therefore, bleeding or coarsening of patterns or patterns can be prevented.

FIG. 5 is a view showing a modified form of the embodiment shown in FIG. 3. According to the modification illustrated in FIG. 5, the hologram film layer or the metal deposition layer 150 is formed on the bottom surface of the synthetic resin substrate layer 110. This is because a hologram pattern or a metallic texture can be expressed, which can contribute to aesthetic improvement when the display device is attached to the back. The hologram film layer or the metal deposition layer 150 may be formed by laminating a known hologram film to the bottom of the synthetic resin substrate layer 110 or depositing a metal on the bottom of the synthetic resin substrate layer 110 by a known metal deposition method. have.

Therefore, by forming a coating layer on the top of the hard coating layer using a fabric that has already been hard-coated, it is possible not only to form vivid colors or luxurious aesthetics, but also to reduce the process itself, thereby reducing manufacturing costs.

As such, the present invention is not limited to the described embodiments, and it is apparent to those skilled in the art that various modifications and variations can be made without departing from the spirit and scope of the present invention. Therefore, such modifications or variations will have to belong to the claims of the present invention.

110: synthetic resin substrate layer 120: adhesive layer 130: hard coating layer 140: paint layer

Claims (5)

In the surface protection film for display devices,
Synthetic resin substrate layer;
An adhesive layer formed on a back surface of the synthetic resin substrate layer and formed of an acrylic adhesive or a silicone adhesive to be attached or detached to a surface of the display device;
A hard coating layer formed on a surface of the synthetic resin substrate layer; And
By including a paint layer formed on the surface of the hard coating layer using a silk printing ink or UV paint,
And when the surface protection film is attached to the display device, the paint layer is disposed on the top layer of the surface protection film. The method of claim 1,
The synthetic resin base layer surface protective film for a display device, characterized in that made of PET or urethane material. The surface protection film of claim 1, wherein the paint layer is formed on a portion of the hard coating layer. The surface protection film for a display device according to claim 1, wherein the paint layer has an embossing pattern. The method of claim 1,
A holographic film layer or a metal deposition layer is further formed between the synthetic resin substrate layer and the adhesive layer.
KR2020110002924U 2011-04-07 2011-04-07 Surface protection film for display device KR200456840Y1 (en)

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Application Number Priority Date Filing Date Title
KR2020110002924U KR200456840Y1 (en) 2011-04-07 2011-04-07 Surface protection film for display device

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2013191507A1 (en) * 2012-06-22 2013-12-27 Lim Namil Three-dimensional molding film for protecting surface of display device and manufacturing method therefor
KR101473174B1 (en) 2013-02-27 2014-12-16 크루셜텍 (주) Method for manufacturing liquid crystal display protection film

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2013191507A1 (en) * 2012-06-22 2013-12-27 Lim Namil Three-dimensional molding film for protecting surface of display device and manufacturing method therefor
KR101473174B1 (en) 2013-02-27 2014-12-16 크루셜텍 (주) Method for manufacturing liquid crystal display protection film

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