KR20040075651A - Advertising display device and manufacturing method thereof - Google Patents

Abstract

PURPOSE: An advertisement display board and its fabrication method are provided, which is constituted with a printed circuit board coated with a white silk facing with a light emitting diode. CONSTITUTION: An outer frame(100) has an inner surface forming a space and a reflection material is coated on a bottom plane and a side of the outer frame. A printed circuit board(200) is located on the bottom of the outer frame and is routed by silk printing and a white silk reflecting a light is coated on at least one plane of the printed circuit board. At least one light emitting diode(300) has a light emitting part toward the plane of the printed circuit board coated with the white silk, and the light emitting part is separated from the printed circuit board and is fixed to the printed circuit board. A complex epoxy resin(500) is adhered to a side of the outer frame and includes a fluorescent coloring pigment molded in the outer frame. And a transparent coating material(600) is coated on the complex epoxy resin.

Description

Advertising display device and manufacturing method of advertising display device {ADVERTISING DISPLAY DEVICE AND MANUFACTURING METHOD THEREOF}

The present invention relates to an advertisement display device and a method for manufacturing the advertisement display device. More specifically, the light emitting diode is fixed to a printed circuit board coated with white silk, and light is scattered by the white silk coated on the printed circuit board. The present invention relates to an advertisement display device configured to be configured so as to be manufactured.

In general, indoor and outdoor advertisement display devices that provide advertisements and necessary information for product sales have been used to induce people's views in order to maximize the effect of advertisements and provide appropriate guidance information appropriate to the situation.

The indoor and outdoor advertising display devices are configured using various kinds of light sources such as fluorescent lamps, incandescent lamps, and neon signs to effectively perform a given function at night as well as during the day.

In particular, light emitting diodes (LEDs) have advantages of small size and long lifespan, and low power consumption and good efficiency since electric energy is directly converted to light energy, compared to other conventional light sources.

The light emitting diode used in the indoor / outdoor advertising display device is a high brightness light emitting diode having a brightness of several candelas by control, and may be selected as necessary according to the size, shape, light emission angle of light, and the like.

However, a high brightness light emitting diode has a constant focus due to the characteristics of the light source, and thus, a conventional advertisement display device using the high brightness light emitting diode has a problem in surface emission. That is, the brightness of the light was not constant because the characters, figures, etc. represented through the advertisement display device did not spread light evenly.

In addition, when the fluorescent dye mixed epoxy resin used together with the light emitting diode is exposed to air in order to make the emitted light appear bright, the mixed epoxy resin reacts with the air to cause sulfide and to change the color of the advertisement display device. There is this.

The present invention has been made to solve the above-described problems, and to provide an advertising display device and a method of manufacturing the device is configured to face the printed circuit board and the light emitting diodes coated with white silk spaced apart from each other. There is this.

Another object of the present invention is to provide an advertisement display device in which an upper surface of an epoxy resin used with a light emitting diode is coated with a transparent coating, and a method of manufacturing the device.

1 is a cross-sectional view of an advertisement display device according to the present invention.

2 is an overall configuration diagram of an advertisement display device according to the present invention.

3 is a flowchart illustrating a method of manufacturing an advertisement display device according to the present invention.

4 is a view sequentially showing a manufacturing method of an advertisement display device according to the present invention.

5 is a molding diagram of a printed circuit board of the advertisement display device according to the present invention.

6 is a molding diagram of the mixed epoxy resin of the advertisement display device according to the present invention.

<Description of the symbols for the main parts of the drawings>

100 ... frame 200 ... printed circuit board

300 light emitting diode 400 transparent epoxy resin

500 mixed epoxy resin 600 transparent coating

In order to achieve the above object, the advertisement display device according to a preferred embodiment of the present invention is formed in a predetermined shape by a work including at least one of injection and bending, the inner surface of the shape is connected to the lower surface and the lower surface Advertisement display frame is formed by forming a space, the reflecting coating is applied to reflect the light on the lower surface and the side; A printed circuit board (PCB) formed in a horizontal cross-sectional shape of the outer mold and seated on a lower surface of the outer mold, silk-printed and routed to express the shape, and coated with white silk reflecting light on at least one side thereof. ; At least one light emitting diode (LED) in which a light emitting portion is directed toward a surface of the printed circuit board coated with the white silk, and the light emitting portion is spaced apart from the printed circuit board surface and fixed to the printed circuit board; Is formed in a horizontal cross-sectional shape of the outer mold so as to be in close contact with the side of the outer mold to be inserted into the lower surface of the outer mold, spaced apart from the back of the light emitting portion of the light emitting diode comprises a fluorescent pigment molded on the inner surface of the outer mold Mixed epoxy resins; And a transparent coating applied to the mixed epoxy resin surface in contact with the outside.

Method of manufacturing an advertising display device according to a preferred embodiment of the present invention (a) by forming a display advertising frame in a predetermined shape by the operation including at least one of the injection and bending, the light on the inner surface of the formed frame Advertising display frame manufacturing step of applying a reflective paint reflecting the; (b) forming a substrate in the shape of the outer frame, silk-printing and routing so that the shape is expressed, and then manufacturing a printed circuit board coated with white silk that reflects light on at least one surface; (c) the light emitting part of the light emitting diode (LED) is directed toward the surface of the printed circuit board coated with the white silk, and the light emitting part is spaced apart from the printed circuit board surface to form the lead of the light emitting diode on the printed circuit board. Inserting and fixing the insertion hole and then mounting the printed circuit board inside the outer frame; (d) forming a disc of the cured mixed epoxy resin containing fluorescent dye into the shape of the outline, inserting the mixed epoxy resin into the outline, and placing the disc to be spaced apart from a rear surface of the light emitting part of the light emitting diode. ; And (e) applying a transparent coating to the mixed epoxy resin surface in contact with the outside.

Hereinafter, an advertisement display device and a method of manufacturing the device according to an embodiment of the present invention will be described with reference to the accompanying drawings.

1 is a cross-sectional configuration of an advertisement display device according to the present invention. Referring to the drawings, the advertisement display device according to the present invention is the outer frame 100, the printed circuit board 200, the light emitting diode 300, the transparent epoxy resin 400, the mixed epoxy resin 500 and the transparent coating agent ( 600).

The outer frame 100 is an outer frame having a shape of a symbol, a letter, and a figure representing an advertisement and information to be notified to people through an advertisement display device, and the inner surface of the shape includes a side surface extending to a lower surface and a lower surface. As a result, an open top surface is formed, and a reflective paint 110 reflecting light is applied to the bottom surface and the side surface.

The inner surface of the outer mold 100 is a printed circuit board 200 is inserted into the light emitting diode 300 is inserted from the lower surface, a transparent epoxy resin 400 layer is formed so that the light emitting diode 300 is buried, transparent epoxy The mixed epoxy resin 500 layer including the fluorescent dye 510 is formed on the upper surface of the resin 400 layer, and then the transparent coating 600 is applied so that the upper surface of the mixed epoxy resin 500 layer is not exposed to air. Accordingly, the advertisement display device has a structure in which a printed circuit board 200, a light emitting diode 300, a mixed epoxy resin layer 500, and a transparent coating agent 600 are stacked from a lower surface of the outer frame 200.

In particular, a white silk 220 is applied to the surface of the printed circuit board 200 of the advertisement display device effectively reflecting light. The light emitting diodes 300 are fixed to be spaced apart from the surface of the printed circuit board 200 while facing the surface on which the white silk 220 is coated. The reason why the light emitting diodes 300 are spaced apart from the surface of the printed circuit board 200 by a predetermined distance is that the light is blurred while the light of the light emitting diodes 300 is separated by a distance, and the light is blurred in the light source. This is to reflect the white silk 220 applied to the printed circuit board 200 so that the focus of the light source is removed.

When the white silk 220 is coated on at least one surface of the printed circuit board 200, the other surface that does not face the light emitting diode 300, that is, the white silk surface coated on the rear surface of the printed circuit board 200 is the light emitting diode 300. By reflecting indirect light emitted from the light improves the brightness of the light.

In addition, the lead 310 of the light emitting diode 300 has a curved shape, and the end of the lead 310 is fixed to the printed circuit board 200 by soldering 320 or the like on the rear surface of the printed circuit board 200. It has a structure that can receive power from the power supply lead line 230 drawn out from the printed circuit board 200.

The transparent epoxy resin layer 400 formed between the bottom surface of the mixed epoxy resin layer 500 and the inner surface of the outer mold 100 may be replaced with an empty space in consideration of the production time and installation place of the advertisement display device.

2 is an overall configuration diagram of an advertisement display device according to the present invention. Referring to the same figure, the advertisement display device according to the present invention further includes a constant voltage power supply 250 and the display control circuit 260.

The constant voltage power supply unit 250 may be a constant voltage switch mode power supply (SMPS) as a component for supplying a constant current to the advertisement display device according to the present invention. The constant voltage SMPS 250 receives a 100V / 220V AC power source 240 that is easy to obtain from a place where an advertisement display device is installed, and supplies a constant voltage to a DC power source of 5V to 48V to the display control circuit 260. The applied power source is preferably an AC power source that is used routinely, but is not limited thereto. The applied power source may be applied with a DC power source of 5V to 48V, and then may be used with a constant voltage of 3.3V to 48V DC power source.

The display control circuit 260 is a component that controls the light emitting timing, the light emitting brightness, and the like of the light emitting diodes 300 of the advertisement display device. The display control circuit 260 may be implemented as a microprocessor including a memory for storing data and control instructions for control. Can be. The display control circuit 260 is electrically connected to the power supply lead line 230 of the printed circuit board 200 mounted on the inner surface of the advertisement display device to supply power to the light emitting diodes 300, and the advertisement display device is represented. The contents to be expressed are expressed in a stationary or moving state through the light emitting diodes 300.

The operation of the advertisement display device according to the present invention will be described with reference to FIGS. 1 and 2 as follows.

When the constant voltage SMPS 250 supplies a predetermined value of current to the display control circuit 260 by constant voltage supplying the applied power 240, the display control circuit 260 prints a circuit according to control data and control commands set in a memory. Power is supplied to the power supply lead line 230 drawn from the substrate 200.

Power supplied through the power supply lead line 230 causes the light emitting diodes 300 fixed to the printed circuit board 200 to emit light. The light emitted from the light emitting diodes 300 is first incident on the white silk 220 coated on the printed circuit board 200. The focus of light appearing in the light source characteristics of the light emitting diode 300 is primarily reflected by the white silk 220 surface in a state in which the white silk 220 surface and the light emitting diode 300 are weakened by a structure spaced at a predetermined interval. Removed.

The light reflected by the white silk 220 of the printed circuit board 200 is scattered through the transparent epoxy resin 400 layer and incident to the mixed epoxy resin 500 layer, or scattered through the transparent epoxy resin 400 layer. The light is reflected back to the reflective paint 110 applied to the inner surface of the mold 100 and incident to the mixed epoxy resin 500 layer. The light reflected from the surface of the white silk 220 in a defocused state is emitted by the particles included in the transparent epoxy resin 400 layer, that is, to the fine particles smaller than the wavelength of the light emitted from the light emitting diodes 300. It is scattered by the light and enters the mixed epoxy resin layer 500 in a uniform surface emitting state.

Light incident on the mixed epoxy resin 500 layer hits the fine fluorescent dye 510 included in the mixed epoxy resin 500 layer and emits light. As a result, the problem that light does not spread evenly to the upper surface of the outer frame 100 of the advertisement display device due to the focus of the light emitting diode 300 is solved, thereby achieving a stable surface emitting state as a whole.

Next, a method of manufacturing an advertisement display device according to an embodiment of the present invention will be described in detail with reference to FIGS. 3 to 6.

3 is a flowchart illustrating a method of manufacturing an advertisement display device according to the present invention, and FIG. 4 is a view sequentially illustrating a method of manufacturing an advertisement display device according to the present invention. 3 and 4, the manufacturing method of the advertisement display device according to the present invention is the outer frame manufacturing step (S100, S110), printed circuit board manufacturing step (S200, S210), light emitting diode fixing step (S300, S310) It is made, including the transparent epoxy molding step (S400, S410), mixed epoxy molding step (S500, S510) and the transparent coating application step (S600, S610).

The appearance frame manufacturing step (S100, S110) is a step of producing a frame constituting the appearance of the advertising display device according to the present invention by the injection and bending work. In this step, by using a material such as a synthetic resin that is easy to injection and bending work to form an outline frame having the shape of the symbols, characters, shapes to form the content to be expressed to the outside through the advertising display device, the formed outline frame A reflective paint 110 reflecting light is applied to the inner surface of the 100. The reflective paint is preferably red (R), green (G), blue (B), that is, a white paint that reflects all three primary colors of light.

The printed circuit board manufacturing step (S200, S210) after forming the substrate in the horizontal cross-sectional shape of the outer mold 100, silk printing and routing so that the shape is expressed, and then reflects the light on the surface of the printed circuit board 200 The white silk 220 is applied.

The printed circuit board 200 has a plurality of penetrating insertion holes into which the light emitting diodes 300 can be inserted. When the light emitting diodes 300 are inserted into the insertion holes, the plurality of light emitting diodes 300 may form an electrically closed circuit. Allow conductors to be placed on the insulator so that they can

5 is a diagram illustrating a molding diagram of a printed circuit board of the advertisement display device according to the present invention. In the figure, the printed circuit board 230 silk-printed in the shape of the letter 'A' on the circuit board and the printed circuit board 200 formed by routing the circuit board according to the shape of the letter 'A' after silk printing are shown.

In the light emitting diode fixing step S300 and S310, the light emitting part of the light emitting diode 300 is directed toward the surface of the printed circuit board 200 to which the white silk 220 is applied, and the light emitting part is disposed on the printed circuit board 200. The lead 310 of the light emitting diode 300 is inserted into the insertion hole formed in the printed circuit board 200 so as to be spaced apart from each other. The inserted LED 300 is fixed to the printed circuit board 200 by soldering 320 or the like.

The light emitting diodes 300 to be inserted may be an appropriate number depending on the content to be displayed through the advertisement display device, that is, the shape of the outer frame 100. The light emitting diodes 300 fixed to the printed circuit board 200 may form a closed circuit electrically. When the predetermined power is supplied, the light emitting diodes 300 fixed to the printed circuit board 200 emit light. Therefore, it is preferable to form a lead wire 210 for supplying power to the lower portion of the printed circuit board 200 and to draw it out of the outer mold 100.

The connection relationship and the number of power lead-out lines of the light emitting diodes 300 inserted into the printed circuit board 200 may be variously configured according to the location and necessity of the advertisement display device.

Referring to the printed circuit board 200 having the letter 'A' shape illustrated in FIG. 5, the insertion holes formed in the printed circuit board 200 are paired in a horizontal direction. One LED may be inserted into each pair of insertion holes, that is, the insertion holes 202 and 203, the insertion holes 204 and 205, and the insertion holes 206 and 207, respectively. Terminal insertion holes 201 and 209 of the printed circuit board 200 are connected to a power supply lead wire 210 for supplying power to the printed circuit board 200 or to another printed circuit board by a conductive line.

Then, the printed circuit board 200 having the light emitting diodes 300 fixed thereto is inserted into the outer mold 100 to be seated on the lower surface of the outer mold 100.

In the transparent epoxy resin molding step (S400, S410), the transparent epoxy resin 400 is molded such that the back surface of the light emitting part of the light emitting diode 300 fixed to the printed circuit board 200 is buried. The cured transparent epoxy resin 400 layer forms a scattering layer that scatters light of the light emitting diodes 300 reflected on the printed circuit board 200 to which the white silk 220 is applied. The molding step of the transparent epoxy resin 400 may be omitted in consideration of the size and place of the advertisement display device according to the present invention.

In the mixed epoxy resin molding steps S500 and S510, a cured disc of the mixed epoxy resin 500 including the fluorescent dye 510 is formed in the shape of the outer mold 100. 6 is a view illustrating a molding diagram of the mixed epoxy resin of the advertisement display device according to the present invention. The figure shows a cured mixed epoxy resin original 520 in which the letter 'A' is silked and the mixed epoxy resin 500 in the shape of the letter 'A' formed by routing it according to the shape of the letter 'A'.

The cured mixed epoxy resin 500 is inserted into the outer mold 100 and molded to contact the upper layer of the transparent epoxy resin 400. In this case, the mixed epoxy resin layer 500 is spaced apart from the rear surface of the light emitting part of the light emitting diodes 300 to be molded.

After curing, the shape of the mixed epoxy resin 500 is preferably formed to be in close contact with the side of the outer mold 100 to be inserted into the inner mold 100. As a result, the molding step of the transparent epoxy resin 400 is omitted, so that the mixed epoxy resin 500 may be easily molded into the outer mold 100 even when the space for the transparent epoxy resin 400 is empty.

As the fluorescent dye 510, an organic compound such as rhodamine, oramin, oleate, stearic acid salt may be used, but in the present invention, it is more preferable to use inorganic materials such as zinc sulfide and zinc sulfide zinc sulfide compound which are more durable than organic matter. desirable.

In the transparent coating application step (S600, S610) to apply a transparent coating 600 to the surface of the mixed epoxy resin 500 in contact with the outside. This prevents the sulfidation caused by chemical reaction with air when the mixed epoxy resin 500 is exposed to air. Thus, as the mixed epoxy resin 500 is applied to the transparent coating 600, it is possible to maintain the color of the original light to be displayed through the advertising display device.

On the other hand, the present invention is not limited to the above-described typical preferred embodiments, but can be carried out in various ways without departing from the gist of the present invention, various modifications, alterations, substitutions or additions are common in the art Those who have knowledge will easily understand. If the implementation by such improvement, change, replacement or addition falls within the scope of the appended claims, the technical idea should also be regarded as belonging to the present invention.

As described in detail above, according to the present invention, the light emitted from the light emitting diode is reflected by the white silk coated on the printed circuit board, and the surface is emitted evenly through the epoxy resin layer while the focus is removed.

The present invention has another effect of removing a sulfide phenomenon generated by a chemical reaction with air by applying a transparent coating on the upper surface of the epoxy resin used with the light emitting diode.

Claims (5)

It is formed into a certain shape by a work including at least one of injection and bending, the inner surface of the shape is formed by a side extending to the lower surface to form a space, and the reflecting paint reflecting light on the lower surface and the side Coated advertisement display frame; A printed circuit board formed in a horizontal cross-sectional shape of the outer mold and seated on a lower surface of the outer mold, and silk-printed and routed so as to express the shape, and coated with white silk reflecting light on at least one surface; At least one light emitting diode in which a light emitting portion is directed toward a surface of the printed circuit board coated with the white silk, and the light emitting portion is spaced apart from the printed circuit board surface and is fixed to the printed circuit board; Is formed in a horizontal cross-sectional shape of the outer mold so as to be in close contact with the side of the outer mold to be inserted into the lower surface of the outer mold, spaced apart from the back of the light emitting portion of the light emitting diode comprises a fluorescent pigment molded on the inner surface of the outer mold Mixed epoxy resins; And Advertising display device comprising a; a transparent coating applied to the mixed epoxy resin in contact with the outside. The method of claim 1, An advertisement display device further comprising a transparent epoxy resin molded in a space formed by the mixed epoxy resin and the inner surface of the outer frame; The method of claim 1, And the predetermined shape includes at least one of a symbol, a character, and a figure. (a) forming an advertisement display outline in a predetermined shape by an operation including at least one of injection and bending, and manufacturing an advertisement display outline frame applying a reflective paint reflecting light to the inner surface of the formed outline; (b) forming a substrate in the shape of the outer frame, silk-printing and routing so that the shape is expressed, and then manufacturing a printed circuit board coated with white silk that reflects light on at least one surface; (c) the light emitting part of the light emitting diode (LED) is directed toward the surface of the printed circuit board coated with the white silk, and the light emitting part is spaced apart from the printed circuit board surface to form the lead of the light emitting diode on the printed circuit board. Inserting an insertion hole to fix the light emitting diode to the printed circuit board, and then mounting the printed circuit board inside the outline frame; (d) forming a disc of the cured mixed epoxy resin containing fluorescent dye into the shape of the outline, inserting the mixed epoxy resin into the outline, and placing the disc to be spaced apart from a rear surface of the light emitting part of the light emitting diode. ; (e) applying a transparent coating on the mixed epoxy resin surface in contact with the outside. The method of claim 4, wherein Wherein step (c) is a transparent epoxy resin molding so that the light emitting portion rear surface of the light emitting diode is buried; Advertising display manufacturing method characterized in that it further comprises.