KR101839799B1 - Advertisement signboard - Google Patents

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Publication number
KR101839799B1
KR101839799B1 KR1020150113644A KR20150113644A KR101839799B1 KR 101839799 B1 KR101839799 B1 KR 101839799B1 KR 1020150113644 A KR1020150113644 A KR 1020150113644A KR 20150113644 A KR20150113644 A KR 20150113644A KR 101839799 B1 KR101839799 B1 KR 101839799B1
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KR
South Korea
Prior art keywords
light
photo
solvent
curable
layer
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Application number
KR1020150113644A
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Korean (ko)
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KR20170019612A (en
Inventor
홍성만
김은미
Original Assignee
(주) 똑똑똑
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Priority to KR1020150113644A priority Critical patent/KR101839799B1/en
Publication of KR20170019612A publication Critical patent/KR20170019612A/en
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    • GPHYSICS
    • G09EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09FDISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
    • G09F13/00Illuminated signs; Luminous advertising
    • G09F13/20Illuminated signs; Luminous advertising with luminescent surfaces or parts
    • G09F13/22Illuminated signs; Luminous advertising with luminescent surfaces or parts electroluminescent
    • GPHYSICS
    • G09EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09FDISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
    • G09F13/00Illuminated signs; Luminous advertising
    • G09F13/04Signs, boards or panels, illuminated from behind the insignia
    • G09F13/0404Signs, boards or panels, illuminated from behind the insignia the light source being enclosed in a box forming the character of the sign

Abstract

The present invention easily and simply forms a photocured layer anywhere on an advertising signboard, thereby enabling the optical effect to be implemented as required in the field. To this end, the present invention relates to an advertising frame in which a storage unit is formed; A photo-curing layer formed by mixing at least one light-diffusing agent with a curable solvent, the photo-curable layer being applied to the inner circumferential surface of the advertisement frame and cured; And a light emitting portion for projecting the light diffused through the photo-curing layer onto the advertisement frame, wherein the photo-curing layer includes a plurality of bubbles, and the light- Of the present invention.

Description

LED optical signboard {Advertisement signboard}

The present invention relates to an LED optical signboard, and more particularly, to an LED optical signboard which increases light diffusing effect by coating and curing an advertisement character, is simple to manufacture, and reduces weight and manufacturing cost.

Conventional advertising signboards have been manufactured by attaching advertising characters to a frame and illuminating the interior of the frame. This type of advertising signboard is manufactured by cutting acrylic or plastic, which is different from the color of the frame, in the form of advertising characters and attaching to the frame. Lighting placed inside the frame is used for advertising characters There is a side that is used for securing the visibility so as to be seen.

Advertising signboards are in a trend of expressing business images beyond the role of nameplate that simply displays the name of the business, and it is demanded that it stands out from other companies. Regarding this, Registration Practical Utility Model No. 20-0229905 proposed a frame-type advertisement signboard expressing a stereoscopic advertisement using a lenticular,

Open Utility Model No. 20-2010-0006680 proposes an LED module for advertisement signboard which fixes a light source illuminating an advertisement character by incorporating an LED bar on the back of an advertisement character,

Japanese Patent Application Laid-Open No. 10-2015-0011512 proposes a stereoscopic signboard for advertisement in which an extruded metal frame is bent to form a three-dimensional character or figure, and a synthetic resin layer is formed on one side to improve the light diffusion effect.

However, in the public utility model 20-2010-0006680, the advertisement sign using the lenticular can express the stereoscopic advertisement, but as the stereoscopic expression becomes strong, the advertisement character and the image are less visible. For example, as the stereoscopic effect on the advertisement object is increased by using the lenticular, it becomes difficult to identify the object represented by the stereoscopic effect, so that it is necessary to compromise stereoscopic effect and visibility.

On the other hand, in the case of Japanese Patent Laid-Open No. 10-2015-0011512, since the advertisement character itself is formed as a three-dimensional body, the visibility is not lowered for stereoscopic representation but the advertising character is formed by bending the metal frame, There is a problem that the manufacturing cost of the character itself increases.

It is an object of the present invention to provide an optical optical signboard that maximizes the optical effect while forming a light diffusing agent or bubble in a curable solvent to have a small thickness.

Another object of the present invention is to provide an LED optical signboard which can easily apply an optical effect to a region where an optical effect is required in an advertising signboard by using a curable solvent such as polyvinyl alcohol to realize an optical effect.

According to an aspect of the present invention, there is provided a method of manufacturing an LED optical signboard according to an embodiment of the present invention. A photo-curing layer formed by mixing at least one light-diffusing agent with a curable solvent, the photo-curable layer being applied to the inner circumferential surface of the advertisement frame and cured; And a light emitting portion for projecting the light diffused through the photo-curing layer onto the advertisement frame, wherein the photo-curing layer includes a plurality of bubbles, and the light- .
At this time, the curable solvent is an aqueous solution of polyvinyl alcohol (PolyVinyl Alcohol) at a concentration of 5% to 25%, and the curable solvent is put into a stirrer, and a part of the stirring blades is exposed to the atmosphere and the rest is precipitated in the curable solvent The stirring blade is rotated so that atmospheric air is mixed with the curable solvent in the form of fine bubbles by the rotation of the stirring blades.
The photocured layer is formed by mixing at least one of titanium dioxide (TiO 2 ), calcium carbonate (CaCO 3 ) and calcium phosphate (Ca 3 (PO 4 ) 2 ) in powder form having a diameter of 0.01 mm to 0.1 mm ≪ / RTI >

According to the present invention, an optical effect can be realized as needed on site by forming a photo-cured layer easily and simply anywhere on the advertising signboard.

Fig. 1 shows the structure of an LED optical signboard which the applicant has previously devised.
Fig. 2 shows an actual view of the LED optical signboard of Fig.
3 shows a perspective view of an LED optical signboard according to an embodiment of the present invention.
Fig. 4 shows an example of a photo-cured layer formed on an LED optical signboard according to an embodiment.
5 shows a photograph of a sample product of an LED optical signboard according to an embodiment.
Figure 6 shows a conceptual diagram of a method for forming bubbles in a solvent through a stirrer.
Fig. 7 shows a reference drawing for explaining the light scattering effect by bubbles.
Fig. 8 shows a conceptual diagram of a light scattering pattern of a photo-curing layer in which a light diffusing agent and a solvent are mixed.

The ad characters referred to herein may be of various forms that can be attached to an advertising frame, including letters, numbers, graphics attached to or fastened to a frame.

The solvent referred to in the present specification may be mixed with a light diffusing agent or a powdery fluorescent material, and then cured to refer to a material having adhesiveness or adhesion to an advertising character or frame. Therefore, in this specification, the solvent may be an organic solvent, liquid silicone or transparent epoxy, and may be an aqueous solution or a mixed solution which is not a single substance. As an example, the polyvinyl alcohol aqueous solution referred to herein may be an "aqueous solution" of 5% to 25% concentration. However, it is not limited.

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

Fig. 1 shows a structure of an LED optical signboard previously proposed by the present applicant, Fig. 2 shows an actual view of the LED optical signboard of Fig. 1, and Fig. 3 shows a perspective view of an LED optical signboard according to an embodiment of the present invention And FIG. 4 shows an example of a photo-cured layer formed on an LED optical signboard according to an embodiment.

1 to 4,

In the LED optical signboard of FIG. 1, the substrate 30 on which the LED is mounted and the acrylic diffuser plates 10 and 20 are sequentially attached to form an advertising signboard. The substrate 30 is provided with LEDs on both sides and projects light toward the acrylic diffuser plates 10 and 20. The acrylic diffuser plates 10 and 20 diffuse the light projected from the substrate 30, So that light can be uniformly expressed in a character. 1, the thickness d0 of the acrylic diffuser plates 10 and 20 is several centimeters in order to uniformly diffuse the light. Preferably, the acrylic diffuser plates 10 and 20 are formed of a translucent material for light diffusion, which is also revealed through the view shown in FIG. As the acrylic diffuser plates 10 and 20 sacrifice light transmittance for light diffusion, the light projected from the substrate 30 is projected to the outside with considerable loss of light, which causes the output of the LED attached to the substrate 30 . This is related to the power loss and heat generation of the substrate 30, which is directly related to deterioration of the substrate 30 and shortening the life span.

Referring to FIG. 3 of the present invention,

The LED optical signboard 100 according to the embodiment includes the upper frame 101 and the lower frame 102 forming advertisement frames 101 and 102 supporting the advertisement characters and the upper frame 101 and the lower frame 102, And a light emitting portion 110 disposed between the light emitting portion 110 and the light emitting portion 110.

The light emitting portion 110 is formed by connecting a plurality of LED bars 111 to 114 and is disposed between the upper frame 101 and the lower frame 102 and can project light toward the upper frame 101 .

A photocured layer M as shown in FIG. 4 may be formed on the inner circumferential surface of the upper frame 101 and the inner circumferential surface of the lower frame 102. The photocured layer M may be formed on the back surface S2 of the lower frame 102 or on the inner circumferential surface of the upper frame 102. [ Here, the photocured layer M may be formed on the front face S1 of the upper frame 101 as well. When the photo-curing layer M is formed on the front face S1 of the upper frame 101, a light diffusion effect can be obtained. In this case, however, the appearance of the optical optical signboard 100 may be somewhat damaged.

The light cured layer M is a mixture of a light diffusing agent and a powdery fluorescent substance in a curable solvent and is in the form of a liquid when contained in a container. After being applied to the upper and lower frames 101 and 102, , 102). ≪ / RTI >

The photocured layer M may be applied to any area of the inner circumferential surface of the advertising frame 101, 102. The photocured layer M may be applied in the form of a sprayer or by a brush for a paint, or it may be poured into a desired position of the advertising frame 101, 102 in a small container.

Since the photocured layer M which can be applied to any area of the advertisement frames 101 and 102 is applied to the inner circumferential surfaces of the advertising frames 101 and 102 according to the embodiment, the following conditions must be satisfied.

1) The photo-curing layer M must have no or low electrical conductivity to prevent electrical shorting of the light-emitting portion 110.

2) The photocured layer M should be firmly attached to the advertising frames 101 and 102 after being applied to the advertising frames 101 and 102 and then cured.

3) The photocured layer M must be less toxic or less for the safety of the constructor of the LED optical signboard 100.

4) The photo-curing layer M should be formed as thin as possible to realize the maximum optical effect.

In order to satisfy the above conditions, the photo-curing layer (M) according to the embodiment uses a non-conductive material as a solvent. Polyvinyl alcohol, liquid silicone, or a curable transparent epoxy may be used as the solvent. These solvents are non-conductive or very low-conductivity materials and have adhesion after curing. Particularly, polyvinyl alcohol (PolyVinyl Alchol) can be used as a solvent formed by an aqueous solution of 5% to 25%.

When an aqueous solution of 5% to 25% of polyvinyl alcohol is formed, the polyvinyl alcohol has a viscosity. When the aqueous polyvinyl alcohol solution having viscosity is cured, polyvinyl alcohol can be firmly attached to the advertising frames 101 and 102 have. That is, when the solvent is selected as polyvinyl alcohol (PolyVinyl Alcohol), it is preferable to join the upper frame 101 and the lower frame 102 after the solvent is cured.

On the other hand, liquid silicon or transparent epoxy may be used. When liquid silicone or transparent epoxy is used as the solvent, the time required for the transparent epoxy to cure relative to the liquid silicone may be less. The liquid silicone or transparent epoxy may be a transparent material or a semi-transparent material with a slight decrease in transparency.

As described above, in order to obtain an optical effect for light diffusion, a translucent material rather than a transparent material may be useful. To this end, the photo-curing layer (M) achieves a good optical effect with a thin thickness by mixing a light diffusing agent for optical effect or a powdery fluorescent substance in a solvent.

Titanium dioxide (TiO 2 ), calcium carbonate (CaCO 3 ), calcium phosphate (Ca 3 (PO 4 ) 2 ) and the like may be used as the light diffusing agent. The light diffusing agent may be adhered to the advertising frame 101, 102 by a solvent after the solvent has been cured by mixing with the solvent in powder form. The light diffusing agent may be advantageous for light diffusion as the ratio of the powder to the solvent is increased. The diameter of the powder may be in the range of 0.01 mm to 0.1 mm, and the diameter of the powder may be larger or smaller according to the thickness to which the photocurable layer M is applied to the advertising frames 101 and 102. However, it is not limited.

When the solvent and the light diffusing agent are mixed and sprayed on the advertisement frames 101 and 102 by a sprayer, a paint brush, or a small container, the photocurable layer M is mixed with the advertisement frame (101, 102). When the photo-curing layer M is applied to the advertising frames 101 and 102, the thickness of the advertising frames 101 and 102 is not significantly increased after they are diffused in the advertising frames 101 and 102, . The upper frame 101 can diffuse the light projected from the light emitting unit 110 to the upper frame 101 by the light diffusing agent included in the solvent, 0.0 > 114). ≪ / RTI > An example of this is shown in Fig.

Referring to FIG. 5, it can be seen that the brightness of the entire area where the light is projected is uniform. The luminance of the light projected through the upper frame 101 by the light diffusion layer can be uniformly adjusted even if the arrangements of the LED bars 111 to 114 arranged in the advertising frames 101 and 102 are not uniform Can be expressed.

Meanwhile, the photo-curing layer (M) according to the embodiment may form a bubble in the interior of the substrate instead of using a separate additive for the solvent, thereby realizing a good light diffusion effect. This will be described with reference to FIG. 6 and FIG.

FIG. 6 is a conceptual diagram of a method of forming bubbles in a solvent through a stirrer, and FIG. 7 is a reference view for explaining light scattering effect by bubbles.

First, referring to FIG. 6, a part of the stirring blade 61 of the stirrer 60 is settled in the solvent, and the remainder is exposed to the atmosphere without being precipitated in the solvent. In Fig. 6, the water level in the container 62 corresponds to the reference "Ref ".

When the stirring blade 61 is rotated at a high speed in a state where a part of the stirring blade 61 is exposed to the atmosphere and the rest of the stirring blade 61 is settled in the solvent, the air in the air is circulated in the form of fine bubbles Lt; / RTI > Since the solvent is a liquid having a high viscosity, the bubbles generated by the rotation of the stirring blades 61 can not easily escape from the solvent, and a large amount of bubbles may remain in the solvent 61.

The bubbles can form a lens structure for light diffusion in the photo-curable layer (M). The light impinging on the bubble can be refracted by the bubble surface having a circular surface. Further, the light entering the inside of the bubble may be refracted or scattered again on the opposite side of the bubble. Since the air bubbles are filled with air, it is expected that the light impinging on the bubbles is refracted or scattered due to a difference in the medium, for example, a medium change of the solvent-bubble-solvent-upper frame 101.

When the solvent in which the bubbles remain is applied to the upper frame 101 and cured, it can be attached and fixed together with the solvent in the upper frame 101 as shown in Fig. 7, the bubbles included in the photo-curable layer M applied to the back surface of the upper frame 101 scatter light projected from the LED bars 111 and 112 of the light emitting portion 110, 101). The upper frame 101 may be made of acrylic or plastic, and the upper frame 101 may contribute to secondary light scattering. Since the material of the light cured layer M including the bubbles and the material of the upper frame 101 are different from each other, the light projected from the LED bars 111 and 112 is reflected by the medium difference between the upper frame 101 and the photo- And the light projected from the upper frame 101 may be scattered at a uniform luminance over the entire exposed surface of the upper frame 101. [

Fig. 8 shows a conceptual diagram of a light scattering pattern of a photo-curing layer in which a light diffusing agent and a solvent are mixed.

Referring to FIG. 8, the photo-curable layer M may be formed by using one of polyvinyl alcohol aqueous solution, liquid silicone, and transparent epoxy as a solvent, titanium dioxide (TiO 2 ), calcium carbonate (CaCO 3 ) And calcium (Ca 3 (PO 4 ) 2 ) as a light diffusing agent. When the photo-curing layer (M) is a mixture of a light diffusing agent and a solvent, a transparent or semitransparent solvent does not greatly contribute to light scattering. Instead, the light diffusing agent contained in the solvent is projected from the LED bars It is possible to scatter the collided light. In order to increase the probability of collision between the light projected from the LED bars 111 and 112 and the light diffusing agent, the light diffusing agent contained in the solvent is preferably in the form of powder of small particles, and it is advantageous that the concentration included in the solvent is high. For this, the light-diffusing agent in the photo-curing layer (M) according to the embodiment has a fine particle shape of 0.01 mm to 0.1 mm. When the constructor is exposed to these particles, a material not harmful to the human body of the constructor As a dispersant.

In the case of titanium dioxide (TiO 2 ), the stability of the use of food additives has been recognized, and even if the constructor is exposed to titanium dioxide (TiO 2 )

In the case of calcium carbonate (CaCO 3 ) or calcium phosphate (Ca 3 (PO 4 ) 2 ), it is also used as a fertilizer to be applied for the growth of trees in orchards or farms. The light diffusing agent proposed by the present applicant is harmless .

100: LED optical sign 101: upper frame
102: lower frame 111 to 114: LED bar
M: photo-curing layer

Claims (6)

  1. An advertising frame in which a storage unit is formed;
    A photo-curing layer formed by mixing at least one light-diffusing agent with a curable solvent, the photo-curable layer being applied to the inner circumferential surface of the advertisement frame and cured; And
    And a light emitting portion for projecting the light diffused through the photo-curing layer onto the advertisement frame,
    Wherein the light curing layer has a plurality of bubbles and is convex toward the light emitting portion for light diffusion,
    The curable solvent is an aqueous solution of polyvinyl alcohol (PolyVinyl Alcohol) in a concentration of 5% to 25%
    The air bubbles are introduced into the agitator by placing the curable solvent in a stirrer, rotating the agitating blades in a state in which a part of the agitating blades is exposed to the atmosphere and the remainder is settled in the curable solvent, And the mixture is mixed with the curable solvent.
  2. delete
  3. delete
  4. The method according to claim 1,
    The photo-
    Characterized in that at least one of titanium dioxide (TiO 2 ), calcium carbonate (CaCO 3 ) and calcium phosphate (Ca 3 (PO 4 ) 2 ) in powder form having a diameter of 0.01 mm to 0.1 mm is mixed with the solvent Of the optical label.
  5. delete
  6. delete
KR1020150113644A 2015-08-12 2015-08-12 Advertisement signboard KR101839799B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1020150113644A KR101839799B1 (en) 2015-08-12 2015-08-12 Advertisement signboard

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1020150113644A KR101839799B1 (en) 2015-08-12 2015-08-12 Advertisement signboard

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KR20170019612A KR20170019612A (en) 2017-02-22
KR101839799B1 true KR101839799B1 (en) 2018-03-19

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Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2010508544A (en) 2006-10-30 2010-03-18 ジーエル コリア カンパニー リミテッド Cover plate for lighting device
KR101113589B1 (en) * 2011-04-06 2012-03-05 (주) 파루 Antiglare plate for lighting device and menufacture method thereof
JP2013077482A (en) * 2011-09-30 2013-04-25 Mitsubishi Electric Corp Light box device
KR101356017B1 (en) 2013-04-24 2014-01-28 윤용준 Sign channel manufactured with epoxy board and solid sign board using the same

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2010508544A (en) 2006-10-30 2010-03-18 ジーエル コリア カンパニー リミテッド Cover plate for lighting device
KR101113589B1 (en) * 2011-04-06 2012-03-05 (주) 파루 Antiglare plate for lighting device and menufacture method thereof
JP2013077482A (en) * 2011-09-30 2013-04-25 Mitsubishi Electric Corp Light box device
KR101356017B1 (en) 2013-04-24 2014-01-28 윤용준 Sign channel manufactured with epoxy board and solid sign board using the same

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