KR101762288B1 - Film Composite, Display Apparatus having the same and Method of Manufacturing the Display Apparatus - Google Patents

Film Composite, Display Apparatus having the same and Method of Manufacturing the Display Apparatus Download PDF

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Publication number
KR101762288B1
KR101762288B1 KR1020150060204A KR20150060204A KR101762288B1 KR 101762288 B1 KR101762288 B1 KR 101762288B1 KR 1020150060204 A KR1020150060204 A KR 1020150060204A KR 20150060204 A KR20150060204 A KR 20150060204A KR 101762288 B1 KR101762288 B1 KR 101762288B1
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KR
South Korea
Prior art keywords
sheet
layer
film composite
film
display device
Prior art date
Application number
KR1020150060204A
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Korean (ko)
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KR20160128590A (en
Inventor
안상일
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안상일
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Priority to KR1020150060204A priority Critical patent/KR101762288B1/en
Priority to JP2015093461A priority patent/JP2016210034A/en
Publication of KR20160128590A publication Critical patent/KR20160128590A/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
    • B32B27/30—Layered products comprising a layer of synthetic resin comprising vinyl (co)polymers; comprising acrylic (co)polymers
    • B32B27/308—Layered products comprising a layer of synthetic resin comprising vinyl (co)polymers; comprising acrylic (co)polymers comprising acrylic (co)polymers
    • 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
    • B32B27/365—Layered products comprising a layer of synthetic resin comprising polyesters comprising polycarbonates
    • 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
    • C09J7/0246—
    • C09J7/0296—
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
    • G09F9/00—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements
    • G09F9/30—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements in which the desired character or characters are formed by combining individual elements

Abstract

The present invention relates to a film composite, a display device including the same, and a manufacturing method thereof. A film composite according to the present invention comprises: a sheet; A first layer formed on one side of the sheet and including a pressure sensitive adhesive material; And a second layer formed on the other side of the sheet and comprising an OCA material.

Description

TECHNICAL FIELD [0001] The present invention relates to a film composite, a display device including the same, and a method of manufacturing the same,

The present invention relates to a film composite, a display device including the same, and a manufacturing method thereof.

A display device for illuminating an engraved pattern on a clear glass door of a shop or the like is often used.

The applied light is reflected by the engraved pattern, which causes the interest in the surroundings to produce the advertisement effect.

In the conventional display device, an engraved pattern is directly formed on the glass. However, it is not easy to form an engraved pattern directly on the glass, and the glass is broken. As a result, the manufacturing cost of the display device is increased.

Though the use of a material that reduces the problem of breakage when forming an engraved pattern compared to glass, forming a engraved pattern on a thick and heavy door itself is not easy to manufacture.

In addition, it is difficult for existing display devices to change the engraved pattern to another shape, and it is difficult to apply the existing display glass to the existing glass door without replacing the whole.

Korean Public Patent No. 2013-0127904 (Published Nov. 25, 2013)

SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned problems, and it is an object of the present invention to provide a display device and a method of manufacturing the same which can stably form a relief pattern, Complex. ≪ / RTI >

SUMMARY OF THE INVENTION A first layer formed on one side of the sheet and including a pressure sensitive adhesive material; And a second layer formed on the other side of the sheet and comprising an OCA material.

The thickness of the first layer may be 100 to 200 um, and the thickness of the second layer may be 150 to 300 um.

The sheet may comprise a PET material, wherein the transmissivity of the film composite is at least 92%, the adhesion of the first layer is 3 to 10 gf / 25 mm, and the adhesion of the second layer is 1000 to 2000 gf / 25 mm.

According to an aspect of the present invention, there is provided a display device comprising: a first sheet having a first surface and a second surface, the first surface having an engraved pattern formed on the first surface; A second sheet facing the second surface of the first sheet and being integrally joined to the first sheet; A film composite positioned between the first sheet and the second sheet; A light source that is disposed along at least one side of the first sheet and supplies light to the first sheet, the film composite comprising: a third sheet; A first layer formed on one side of the third sheet and including a pressure sensitive adhesive material for releasably attaching the film composite to the second sheet; And a second layer comprising an OCA material formed on the other side of the third sheet and attaching the film composite to the first sheet.

And a reinforcing layer disposed on a first side of the first sheet, wherein the engraved pattern may be formed across the reinforcing layer and the first sheet.

Wherein the first sheet comprises at least one of acrylic resin, polycarbonate and PMMA, the second sheet comprises at least one of glass and plastic, and the third sheet comprises PET .

Wherein the thickness of the first layer is between 100 and 200 um and the thickness of the second layer is between 150 and 300 um and the thickness of the second sheet is less than the thickness of the first sheet 2 to 20 times.

Another object of the present invention is to provide a method of manufacturing a display device by attaching a first sheet having an engraved pattern formed thereon to a second sheet thicker than the first sheet, wherein the reinforcing layer and the reinforcing film Forming at least one of them; Attaching a film composite to a second side of the first sheet; Forming an engraved pattern over at least any one of the reinforcing layer and the reinforcing film and the first sheet; Detachably attaching the second sheet to the film composite; Disposing a light source that supplies light to the first sheet, the film composite comprising a third sheet; A first layer formed on one side of the third sheet and including a pressure sensitive adhesive material for releasably attaching the film composite to the second sheet; And a second layer comprising an OCA material formed on the other side of the third sheet and attaching the film composite to the first sheet.

The engraved pattern formation may be performed by attaching a release film to at least one of the reinforcing layer and the reinforcing film.

Wherein the thickness of the first layer is between 100 and 200 um and the thickness of the second layer is between 150 and 300 um and the thickness of the second sheet is less than the thickness of the first sheet 2 to 20 times.

According to the present invention, there is provided a display device which can reliably form an engraved pattern, has a low manufacturing cost, and is easily applicable to existing equipment, and a method of manufacturing the same. There is also provided a film composite which can be used for a display device or the like.

1 is a perspective view of a display device according to a first embodiment of the present invention,
2 is a cross-sectional view taken along line II-II 'of FIG. 1,
FIG. 3 is a cross-sectional view of the film composite used in the first embodiment of the present invention in an enlarged view of part A of FIG. 2,
4 is a view for explaining the separation from the second sheet in the display device according to the first embodiment of the present invention,
5 is a flowchart illustrating a method of manufacturing a display device according to a first embodiment of the present invention,
6 is a view showing the combination of the first sheet and the second sheet in the method of manufacturing the display device according to the first embodiment of the present invention,
7 is a view for explaining a method of forming an engraved pattern in a manufacturing method of a display device according to the first embodiment of the present invention,
8 is a view showing a connection with the second sheet in the method of manufacturing the display device according to the first embodiment of the present invention,
9 is a view for explaining a manufacturing method of a display device according to a second embodiment of the present invention,
10 is a cross-sectional view of a display device according to a second embodiment of the present invention.

Hereinafter, a display device and a manufacturing method thereof according to the present invention will be described in detail with reference to the accompanying drawings. The term " sheet " in the present invention is a concept including both a general film or a plate. Therefore, the 'sheet' according to the present invention has properties of a film or a plate, or properties therebetween depending on its material and thickness. The terms "upper", "upper surface", "lower" and "lower surface" in the present invention indicate positions based on upper and lower portions of the drawing. In the drawings of the present invention, the length and thickness are exaggerated to facilitate understanding of the invention.

In the following embodiments, the LED module will be described as an example of the light source unit, but the present invention is not limited thereto, and other light sources such as an OLED can also be used.

FIG. 1 is a perspective view of a display device according to a first embodiment of the present invention, and FIG. 2 is a cross-sectional view taken along line II-II 'of FIG. Figure 2 shows the components spaced apart for convenience.

The display device 1 is generally rectangular in shape and includes a first sheet 100, a second sheet 200, a film composite 30 positioned between both sheets 100 and 200, and an LED module 400 .

The first sheet 100 is made of synthetic resin and may include acryl, polycarbonate or PMMA. The thickness d1 of the first sheet 100 may be 0.8 mm to 3 mm. A reinforcing layer 110 is formed on the upper surface of the first sheet 100. The reinforcing layer 110 is formed on the first sheet 100 by coating and protects the first sheet 100 when the engraved pattern 150 is formed. The reinforcing layer 110 is made of a material stronger than the first sheet 100 and may be made of, for example, acrylic resin or silicone resin, but is not limited thereto.

The second sheet 200 serves as a support for maintaining the shape of the display device 1, and may be made of glass or synthetic resin. The thickness d2 of the second sheet 200 may be between 2 and 20 times the thickness d1 of the first sheet 100. [ For example, the thickness d2 of the second sheet 200 may be between 5 mm and 12 mm.

The film composite 30 serves to connect the first sheet 100 and the second sheet 200 together. The film composite 30 will be described with reference to Fig.

The film composite 30 'shown in FIG. 3 includes a third sheet 300, a first layer 310, a second layer 320, and release films 330 and 340. The film composite 30 'is used in the form of a film composite 30 of FIG. 2 by removing both release films 330 and 340 when used in a display device or the like.

The third sheet 300 may be made of material having no substantial deformation at 150 DEG C for 30 minutes or more, for example, PET. The thickness d3 of the third sheet 300 may be 20 um to 100 um, 30 um to 80 um, or 40 um to 60 um.

The first layer 310 formed on the lower surface of the third sheet 300 is for coupling with the second sheet 200. The first layer 310 may be made of a pressure sensitive adhesive material. The first layer 310 may be made of acrylic, silicone, or urethane, especially silicon. The first layer 310 may be mixed with an additive having a self-adhesive function to facilitate the adhesion process.

The thickness d4 of the first layer 310 may be greater than or equal to 50 um or greater than or equal to 100 um. Specifically, the thickness d4 of the first layer 310 may be in the range of 50 袖 m to 300 袖 m, 100 袖 m to 200 袖 m, or 100 袖 m to 300 袖 m.

The first layer 310 may have an adhesion strength of 180 peels, 4 to 7 gf / 25 mm or 3 to 10 gf / 25 mm under glass conditions.

3, the second layer 320 formed on the upper surface of the sheet 300 is for coupling with the first sheet 100. [ The second layer 320 may comprise OCA (optical clear adhesive) and may comprise silicon, particularly OCA using a soft silicone adhesive.

The thickness d5 of the second layer 320 may be greater than the thickness d4 of the first layer 310. [ Specifically, it may be 1.2 times to 3 times or 1.2 times to 2 times. The thickness d5 of the second layer 320 may be 100um or more or 150um or more, specifically 150um to 200um, 150um to 300um, or 150um to 500um.

The adhesion strength of the second layer 320 may be 500 gf / 25 mm or more or 1000 gf / 25 mm or more, specifically 500 to 2000 gf / 25 mm, 1200 to 1600 gf / 25 mm or 1000 to 2000 gf / 25 mm.

Thicknesses (d6, d7) of the release films (330, 340) are not particularly limited, but may be 30 um to 60 um.

The total thickness of the film composite 30 may be 200um or more, or 300um or more, and specifically 200um to 500um. The transmittance of the film composite 30 may be greater than or equal to 92%, or greater than 95% as measured according to ASTM D1003, and specifically may be from 92% to 95%, 92% to 100%, or 95% to 100% have. The haze of the film composite 30 may be 1 or less when measured according to ASTM D1003, and may be 1 or less or 0.5 or less.

The use of the film composite 30 according to the present invention allows shock absorption due to the large thickness of the first layer 310 and the second layer 320. Also, due to the large thickness of the second layer 320, the film composite 30 can be attached to the first sheet 100 without hesitation. Especially, when the first sheet 100 is made of an acrylic resin having low flatness, lifting phenomenon can be reduced.

On the other hand, in another embodiment, a print pattern may be formed on the lower surface of the first sheet 100. The thickness of the printed pattern may be about 0.01 mm to 0.015 mm. The thickness d5 of the second layer 320 when the printing pattern is formed may be 3 to 20 times or 5 to 15 times the printing pattern, or may be 100um or more or 150um or more, specifically 150um to 200um, 150 um to 300 um or 150 um to 500 um.

 The second layer 320 having such a thickness does not cause the generation of micro-spaces around the print pattern, and thus the bubble phenomenon does not occur.

In addition, since the second layer 320 uses stable soft silicon, deterioration is not easily caused by long use under a hot sun or strong heat of an LED.

On the other hand, the film composite 30 of the present invention is not limited to the film composite 30 'shown in Fig. 3, but may be formed in the process of manufacturing the display device 1. [

The LED module 400 includes an LED substrate 410 and an LED 420 mounted on the LED substrate 410. The LED module 400 is elongated along one side of the display device 1. In order to supply light to the first sheet 100, the LED module 400 is biased toward the first sheet 100. The LED 410 can supply white or RGB colors, and the configuration for power supply is omitted.

In other embodiments, the LED module 400 may extend along two or more sides of the display device 1, or may be pointed without extending long.

Although the shape of the display device 1 in the embodiment is rectangular, the display device 1 may be modified in various shapes such as a circle, an ellipse, and the like. The height L1 and the width L2 of the display device 1 are not limited, but may be a large display device having a height L1 and a width L2 of 1 m or more, respectively, from a small display device each having a size of 50 cm or less. In addition, the display device 1 may be elongated in one direction or in the form of a glass of a store.

The first sheet 100 is joined to the second sheet 200 after the engraved pattern 150 is formed on the first sheet 100 in the display device 1 described above. Accordingly, the engraved pattern 150 can be easily formed, and the problem of breaking the second sheet 200 in the engraved pattern formation 150 does not occur.

Also, as shown in FIG. 4, the first sheet 100 and the film composite 30 can be attached to and detached from the second sheet 200 by the first layer 310. Therefore, the present invention can be easily applied to the second sheet 200 already installed. That is, when a combined body of the first sheet 100 and the film composite 30 is attached to a glass door installed in an existing store, the display device is completed. Further, when the engraved pattern 150 needs to be changed, it is only necessary to replace the combination of the first sheet 100 and the film composite 30.

Hereinafter, a method of manufacturing the display device according to the first embodiment of the present invention will be described with reference to FIGS. 5 to 8. FIG.

FIG. 5 is a flow chart for explaining a manufacturing method of a display device according to a first embodiment of the present invention, and FIG. 6 is a cross-sectional view illustrating a method of manufacturing a display device according to a first embodiment of the present invention, FIG. 7 is a view for explaining a method of forming an engraved pattern in the method of manufacturing a display device according to the first embodiment of the present invention, and FIG. 8 is a cross- Fig. 3 is a view showing the bonding with the second sheet in the production method of Fig.

First, a first sheet 100 having a reinforcing layer 110 formed on its upper surface is prepared (S101). The reinforcing layer 110 may be formed by coating or the like.

Next, the film composite 30 is prepared (S102), and the first sheet 100 and the film composite 30 are joined (S103). In this step, a second layer 320 is formed on the lower surface of the first sheet 100 and / or the upper surface of the film composite 30, and the two sheets 100 and 300 are joined together as shown in FIG. The layer 320 is cured. The first sheet 100 may be provided in a plate form, and the third sheet 300 may be provided in a roll form. In this case, a process of cutting the third sheet 300 into a plate shape may be added.

Then, the engraved pattern 150 is formed (S104). This process is performed after the release film 500 is additionally formed on the upper side of the reinforcing layer 110. The release film 500 may be made of PET or PE, and the release film 500 helps secure the stability of the pattern when the engraved pattern 150 is formed.

The engraved pattern 150 is formed in a state in which the first sheet 100 and the film composite 30 are joined together and the release film 500 is attached as shown in FIG. The engraved pattern 150 may be formed using a laser or the like. An object to form the engraved pattern 150 is the first sheet 100, but is also formed on the release film 500 and the reinforcing layer 110 to which the engraved film 150 is attached.

The formation depth of the engraved pattern 150 is equal to or smaller than the thickness of the first sheet 100 and is performed as quickly as possible to prevent sheet deformation due to heat generation. After the engraved pattern 150 is formed, the engraved pattern 150 can be colored using ink or the like.

The engraved pattern 150 may be formed using a CNC engraver.

By the method of forming the engraved pattern 150, the engraved pattern 150 is formed over the reinforcing layer 110 and the first sheet 100.

Next, the LED module 400 is installed (S105). The LED module 400 is installed along one side of the first sheet 100 so as to be close to the first sheet 100. In another embodiment, the LED module 400 may be installed after coupling with the second sheet 200.

Finally, the first sheet 100 is attached to the second sheet 200 (S106). The first layer 310 is formed on the lower surface of the third sheet 300 and the third sheet 300 is formed on the second sheet 200 by using the first layer 310 as shown in FIG. . The thickness of the first layer 310 may be between 0.01 mm and 0.12 mm. The release film 500 may be removed immediately after the engraved pattern 150 is formed in removing the release film 500 after attachment with the second sheet 200.

In another embodiment, the formation of the first layer 310 may be performed prior to the joining of the first sheet 100 and the third sheet 300, and the third sheet 300 and the first layer 310 are formed You can purchase and use the product.

On the other hand, in another embodiment, the display device can be manufactured using the film composite 30 'shown in Fig. In this case, in the process corresponding to FIG. 6, the release film 330 is removed from the film composite 30 'and used. Accordingly, the film composite 30 'in the process corresponding to FIG. 7 includes the third sheet 300, the first layer 310, the second layer 320, and the lower release film 340. 8, the lower release film 340 is removed, and the film composite 30 is formed.

According to the above-described method of manufacturing the display device 1, since the engraved pattern 150 is formed in a state where at least a part of the reinforcing layer 110, the release film 500, and the film composite 30 are engaged, 150) is stably formed. Further, since only the combined body of the first sheet 100 and the film composite 30 can be attached to existing facilities, the manufacturing cost is low and the replacement is easy.

A display device according to a second embodiment of the present invention will be described with reference to Figs. 9 and 10. Fig.

In the second embodiment, a reinforcing film 111 is used instead of the reinforcing layer 110. The reinforcing film 111 may be made of PET and may be removed after bonding with the second sheet 200. [ In the second embodiment, the release film 500 is used to form the engraved pattern 150, but the release film 500 may not be used depending on the performance of the reinforcement film 111.

Also in the second embodiment, the display device can be manufactured using the film composite 30 '. In this case, in the process corresponding to FIG. 9, the release film 330 is removed from the film composite 30 'and used.

In the second embodiment, the reinforcing film 111 may be removed from the final display device 1, in which case the engraved pattern 150 is formed only on the first sheet 100, as shown in FIG.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is evident that many alternatives, modifications, and variations will be apparent to those skilled in the art. There will be. Accordingly, the true scope of protection of the present invention should be determined only by the appended claims.

Claims (10)

delete delete delete delete delete delete delete A method for manufacturing a display device by attaching a first sheet having an engraved pattern formed thereon to a second sheet thicker than the first sheet,
Forming at least one of a reinforcing layer and a reinforcing film on a first surface of the first sheet;
Attaching a film composite to a second side of the first sheet;
Forming an engraved pattern over at least any one of the reinforcing layer and the reinforcing film and the first sheet;
Detachably attaching the second sheet to the film composite;
And disposing a light source for supplying light to the first sheet,
The film composite
A third sheet;
A first layer formed on one side of the third sheet and including a pressure sensitive adhesive material for releasably attaching the film composite to the second sheet;
And a second layer formed on the other side of the third sheet and comprising an OCA material for attaching the film composite to the first sheet. 9. The method of claim 8,
The engraved pattern formation is carried out,
Wherein a release film is attached to an upper portion of at least one of the reinforcing layer and the reinforcing film. 9. The method of claim 8,
The thickness of the first layer is 100 to 200 um, the thickness of the second layer is 150 to 300 um,
Wherein the first sheet is thinner than the second sheet,
Wherein the thickness of the second sheet is 2 to 20 times the thickness of the first sheet.



KR1020150060204A 2015-04-29 2015-04-29 Film Composite, Display Apparatus having the same and Method of Manufacturing the Display Apparatus KR101762288B1 (en)

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KR1020150060204A KR101762288B1 (en) 2015-04-29 2015-04-29 Film Composite, Display Apparatus having the same and Method of Manufacturing the Display Apparatus
JP2015093461A JP2016210034A (en) 2015-04-29 2015-04-30 Film composite body, display apparatus including the same and method for producing the same

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Application Number Priority Date Filing Date Title
KR1020150060204A KR101762288B1 (en) 2015-04-29 2015-04-29 Film Composite, Display Apparatus having the same and Method of Manufacturing the Display Apparatus

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KR101762288B1 true KR101762288B1 (en) 2017-07-28

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JP6774029B2 (en) * 2017-04-13 2020-10-21 日本電気硝子株式会社 Glass resin laminate

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2007530200A (en) 2004-04-02 2007-11-01 クロッカー ポール Cover, surface cover, method for finishing table top and method for changing surface to advertising medium
US20140251662A1 (en) 2011-08-12 2014-09-11 3Mm Innovative Properties Company Optically clear conductive adhesive and articles therefrom

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Publication number Priority date Publication date Assignee Title
HUE056285T2 (en) 2010-04-21 2022-02-28 Flyvision Kft Equipment for displaying information carriers, especially for advertising purposes

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2007530200A (en) 2004-04-02 2007-11-01 クロッカー ポール Cover, surface cover, method for finishing table top and method for changing surface to advertising medium
US20140251662A1 (en) 2011-08-12 2014-09-11 3Mm Innovative Properties Company Optically clear conductive adhesive and articles therefrom

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