KR20120121145A - board for displaying information using LED - Google Patents

Abstract

PURPOSE: A road sign board for displaying information using LEDs is provided to accurately display information by allowing multiple LEDs to emit uniform light to the outside. CONSTITUTION: A road sign board for displaying information using LEDs comprises a base plate(10), an information display film(20), and an information recognition film(30). The information display film is attached to the base plate and comprises a base film(21), circuit patterns(23), LEDs(25), and an adhesive plastic film. The circuit patterns are printed on the base film. The LEDs are installed in the circuit patterns. The adhesive plastic film protects the base film and the LEDs. The information recognition film is attached to the information display film and has an opening(31) to expose information portions formed on the information display film to the outside. The information recognition film has a different color from the information display film so that a person can accurately recognize the information formed on the information display film.

Description

LED information display board

The present invention relates to an LED information display panel, and in particular, by configuring the information to be displayed through the LED, it is excellent in visibility at night, and can be applied to various road display panels or advertisement displays, and a plurality of circuit patterns connected to the LED. By inserting a resistance increasing pattern of the LED, even when using a solar cell as a power supply, a plurality of LEDs to be uniform brightness of each other LED information display panel that can accurately represent the display information.

In order to display various kinds of information, we use pictures, images, numbers and letters. The most suitable example of this is a traffic sign. Traffic signs display specific information using pictures, numbers, and letters.

In addition, shops, department stores, etc., to use a picture, numbers, letters, etc. in order to perform a variety of advertisements to deliver specific information to the customer or allow the customer to generate a desire to buy.

Such an information display panel means a wide concept display panel including a road traffic sign or an advertising sign. Such information display panel is preferably configured to ensure visibility even at night.

Recently, there has been a great movement to display various kinds of information using LEDs. However, the display panel for displaying information by using the existing LED has a disadvantage that the configuration is complicated and difficult to manufacture, and the price is expensive.

Meanwhile, the existing information display panel uses a general commercial power source as a power supply source, and thus has an undesirable disadvantage in terms of power utilization. That is, the information display method using the solar cell has not been proposed, and in particular, the configuration for transmitting accurate information by making the luminance of the plurality of LEDs uniform using the solar cell has not been proposed.

The present invention was devised to solve the problems of the prior art as described above, and by configuring the information to be displayed through the LED, it is excellent in visibility even at night, and can be applied to various road display panels or advertising display panels, LED By inserting a plurality of resistance increasing pattern parts into a circuit pattern connected to the LED, it is possible to improve the LED information display panel that can accurately display the display information by allowing the plurality of LEDs to display uniform brightness even when the solar cell is used as a power supply source. For that purpose.

The constituent means constituting the LED information display plate of the present invention proposed to solve the above problems is attached to the base plate, the information display film, which is configured on the base plate, the display information of the LED, the information display film And an information partition film having a different color from the information display film, wherein the display information portion is opened, wherein the information display film comprises a base film on which a circuit pattern is printed, and the base to be connected to the circuit pattern. LED is mounted on the film, and characterized in that it comprises an adhesive plastic film adhesively bonded to the front and rear of the base film.

Here, the circuit pattern is printed so that the portion where the LED is to be mounted is disconnected, the LED is mounted so that the disconnected circuit pattern can be electrically connected, and after coating the silicon on both contacts of the mounted LED, 7 It is characterized by drying for a time to 10 hours.

Here, the circuit pattern includes a plurality of resistance increase pattern parts for increasing lead resistance, wherein the plurality of resistance increase pattern parts are formed to be connected to the LEDs, respectively, and each of the resistance increase pattern parts is connected to a plurality of uneven patterns. And a resistance increase pattern portion connected to the LED at a position close to the connector, wherein the resistance increase pattern portion is connected to the LED at a position far from the connector.

Here, the insulating layer is formed on the circuit pattern is coated with an ink of the same color as the base film is laminated.

Here, the adhesive plastic film is formed with an adhesive on one side of the plastic film, the plastic film is PVC (Polyvinyl chloride), PVDC (Polyvinyliolene chloride), PC (Polycarbonate), PP (Polypropylene) and PET (Polyester) film It is characterized in that any one of.

Here, the process of adhesively bonding the adhesive plastic film to the front and rear of the base film on which the circuit pattern is printed and the LED is mounted is performed in a chamber device, wherein the chamber device is formed in a chamber, the chamber lower side. It is maintained in a heated state when performing the process, the fixing plate for fixing the base film, is installed to enable the lifting and lowering above the chamber, the contact with the adhesive plastic film placed on the fixed base film during the process Pressurizing plate to press, characterized in that it comprises a pumping line formed in the chamber to form the inside of the chamber in a vacuum atmosphere.

Here, the base film is fixed on the fixed plate heated to a temperature between 60 ℃ ~ 80 ℃, in the state in which the pressure plate is pressed in contact with the adhesive plastic film placed on the base film, the pumping line It is characterized in that the adhesive plastic film is attached and bonded to the base film while maintaining the vacuum inside the chamber by pumping the air inside the chamber through the outside.

According to the LED information display panel of the present invention having the above-described problems and solving means, since the information to be displayed through the LED is configured, it is excellent in visibility at night and can be applied to various kinds of road display boards or advertisement display panels. have.

In addition, since a plurality of resistance increase pattern parts are inserted into a circuit pattern connected to the LED, even when a solar cell is used as a power supply source, the plurality of LEDs have uniform brightness to each other, thereby accurately displaying display information. .

1 is an exploded perspective view of an LED information display panel according to an exemplary embodiment of the present invention.
2 is a manufacturing picture of the LED information display panel according to an embodiment of the present invention.
3 is a configuration diagram of a circuit pattern of the LED information display panel according to the embodiment of the present invention.
4 is a real picture of a base film printed with a circuit pattern constituting the LED information display panel according to an embodiment of the present invention.
5 is a block diagram of a chamber device for adhesively bonding an adhesive plastic film on a base film constituting the LED information display panel according to an embodiment of the present invention.

Hereinafter, with reference to the accompanying drawings will be described in detail a preferred embodiment of the LED information display panel of the present invention having the above problems, solving means and effects.

It is to be understood that the terminology or words used herein are not to be construed in an ordinary sense or a dictionary, and that the inventor can properly define the concept of a term to describe its invention in the best possible way And should be construed in accordance with the meaning and concept consistent with the technical idea of the present invention.

1 is an exploded perspective view of an LED information display panel according to an exemplary embodiment of the present invention.

As shown in FIG. 1, the LED information display panel according to the present invention includes a base plate 10, an information display film 20, and an information partition film 30.

The base plate 10 is a base plate of the LED information display plate, and may be variously selected as long as it is a metal plate. That is, as a plate made of a material such as aluminum, iron, the shape may be configured in various ways, such as square, triangular, circular.

The information display film 20 is attached on the base plate 10. The information display film 20 performs a function of expressing information to be displayed through the LED information display panel of the present invention. The information display film 20 uses the LED 25 to display specific information. That is, the information display film 20 is attached on the base plate 10 and constitutes specific display information with the LEDs 25.

Specific display information consisting of the LED 25 is formed of a picture, letters, numbers, shapes, and the like. 1 illustrates that the LEDs 25 are arranged in a quadrangular shape in order to form a rectangular shape as display information. And, Figure 2 is an actual production picture of the road traffic sign to display the actual crosswalk. As shown in FIG. 2, a human shape, a crosswalk display, and a crosswalk letter are configured through the plurality of LEDs.

The information partition film 30 is attached on the information display film 20. The information partition film 30 is formed with an opening 31 so that the display information portion formed on the information display film 20 can be opened. The information partition film 30 has a different color from the information display film 20 in order to visually clearly display the display information formed on the information display film 20. In FIG. 1, since the information display film 20 is illustrated as displaying rectangular information, the information partition film 30 has a rectangular opening 31.

The information display film 20 that exposes the display information to the outside through the opening 31 of the information partition film 30 is specifically a base film 21, a circuit printed on the base film 21. And an adhesive plastic film (not shown) for protecting the pattern 23, the LED 25 mounted on the circuit pattern, and the base film 21 including the LED 25.

The base film 21 may correspond to an insulating and very thin film. Specifically, any one film among polyvinyl chloride (PVC), polyvinyliolene chloride (PVDC), polycarbonate (PC), polypropylene (PP), and PET (Polyester) films may be used, and the LED 25 on the film may be used. And the circuit pattern 23 is formed.

A circuit pattern 23 having a predetermined shape is formed on the base film 21. Such a circuit pattern 23 is printed on the base film 21 so that power applied from a power supply source (commercial power source or solar cell or general battery) can be supplied to the LED 25. The LED 25 is mounted on the base film 21 to be connected to the circuit pattern 23. The LED 25 is mounted using SMT equipment.

As described above, the circuit pattern 23 is formed thereon, and the base film 21 on which the LED 25 is mounted is protected by the adhesive plastic film. That is, the adhesive plastic film having a waterproof function is adhesively bonded to the front or front and rear of the base film 21.

By adhesively bonding the adhesive plastic film to the base film 21, the LED 25 and the circuit pattern 23 are protected from moisture or water, consequently extending the lifespan of the LED information display panel and preventing safety accidents. You can prevent it. A method of adhering the adhesive plastic film to the base film 21 will be described later.

The circuit pattern 23 is formed on the base film 21 through a printing method. Specifically, as shown in FIG. 4, the circuit pattern 23 is printed in a predetermined pattern on the upper surface of the base film 21. At this time, the circuit pattern 23 is printed so that the portion where the LED 25 is to be mounted is disconnected. That is, as shown in FIG. 4, the circuit pattern 23 is formed to have a disconnection portion 23 ′.

The LED 25 is mounted on the disconnected portion 23 '. Specifically, the LED 25 is mounted on the disconnection part 23 'so that the positive contact of the LED 25 is connected to one side of the disconnection part and the negative contact is connected to the other side of the disconnection part. That is, the LED 25 is mounted so that the disconnected circuit pattern 23 can be electrically connected.

As described above, after the LED 25 is mounted on the disconnected portion 23 ′ of the circuit pattern 23, silicon is coated on both contacts of the mounted LED 25, and then 7 hours to 10 hours. During the drying process. Since the base film 21 is soft, the mounted LED 25 may be detached in a bending process. Therefore, it is preferable to perform the process of fixing using silicon to both the contacts of the mounted LED (25).

The circuit pattern 23 is formed differently according to the case of driving the LED 25 using a commercial power source and the case of driving the LED using a solar cell. That is, when driving the LED using a commercial power source because the relatively high power power is used, the luminance of the plurality of LEDs mounted on the base film 21 are all uniform.

However, when driving the LED using a solar cell that provides a relatively low power, the luminance of the plurality of LEDs mounted on the base film 21 may be different. That is, the brightness of the LED located far from the power supply point is lower than the brightness of the LED located near. As a result, the specific display information expressed through the plurality of LEDs may not be accurately visible at night.

As described above, when a relatively low power solar cell is used as a power supply source, the circuit pattern includes a plurality of resistance increase pattern parts 23a for increasing lead resistance, as shown in FIG. 3. do.

As shown in FIG. 3, the plurality of resistance increase pattern parts 23a are respectively connected to the LEDs 25, and each of the resistance increase pattern parts 23a is shown in FIG. 3. A plurality of uneven patterns are connected to each other. The resistance increase pattern part 23a forms a larger resistance as the number of the uneven patterns increases.

Therefore, as shown in FIG. 3, the resistance increase pattern portion 23a connected to the LED 25 located at a position close to the connector 40 formed on one side of the LED information display plate is located at a position far from the connector 40. It is composed of more uneven pattern than the resistance increase pattern portion 23a connected to the LED 25.

As a result, the LED in the near position or the LED in the far position from the connector 40 is powered through almost the same load resistance. That is, the power supplied from all the LEDs is almost the same, so the brightness of all the LEDs is almost the same. Thus, the display information represented by the plurality of LEDs is displayed accurately.

As described above, the circuit pattern 23 is printed on the base film 21 in various shapes. As such, the printed circuit pattern 23 is generally different from the color of the base film 21. Therefore, it is necessary to make the circuit pattern 23 not visible to the outside in order to improve aesthetics or to express the display information only by the LED.

Therefore, it is preferable that an insulating layer formed by coating with ink of the same color as the base film 21 is laminated on the circuit pattern 23. In other words, by coating the insulating layer on the circuit pattern 23, the base information is integrated with the base film 21 so as not to be seen from the outside. The display information can be expressed only by the configuration.

The base film 21 on which the above-described circuit pattern 23 and the LEDs 25 are formed is protected by an adhesive plastic film. In this case, the circuit pattern 23 may be coated and covered by the insulating layer, or may be exposed to the outside because the insulating layer is not coated.

The adhesive plastic film is formed with an adhesive on one surface of the plastic film, the plastic film is any one of polyvinyl chloride (PVC), polyvinyliolene chloride (PVDC), polycarbonate (PC), polypropylene (PP) and PET (Polyester) film It is preferable to be one.

As described above, the base film 21 is provided with the LED 25 and the circuit pattern 23. Such a base film 21 needs to be protected from external moisture or moisture and minimizes oxidation. For this purpose, the adhesive plastic film should be firmly bonded and bonded to the base film 21.

As such, in order to firmly bond the adhesive plastic film to the base film, that is, to smoothly attach the bubbles or the like, the adhesive plastic film is adhesively bonded to the base film using a chamber device. Do the method.

Specifically, a process of adhesively bonding the adhesive plastic film to the front and rear surfaces of the base film on which the circuit pattern is printed and the LED is mounted is performed in the chamber apparatus shown in FIG. 5.

As shown in FIG. 5, the chamber device 200 is formed in the chamber 210 and the lower side of the chamber 210 to be maintained in a heated state during the process and to fix the base film 21. 220, the pressure plate 230 is installed on the upper side of the chamber so as to be able to move up and down, and presses and contacts the adhesive plastic film placed on the fixed base film 21 during the process, the chamber 210. ) Is configured to include pumping lines 240 and 250 formed in the chamber 210 to form an interior in a vacuum atmosphere. The pumping line is formed of at least one of the upper pumping line 240 and the lower pumping line 250 formed under the chamber.

Specifically, after the circuit pattern 23 is printed on the fixing plate 220 and the base film 21 on which the LED is mounted is seated, the fixing plate 220 is fixed by heating means (not shown). Heat to temperature.

The base film is preferably mounted on the fixed plate heated to a temperature between 60 ℃ 80 ℃. In this state, an adhesive plastic film is placed on the base film. The pressure plate 230 presses the base film on which the adhesive plastic film is placed. That is, the pressure plate contacts and presses the adhesive plastic film placed on the base film.

In this state, a process of converting the inside of the chamber into a vacuum state is performed. That is, the process of attaching and bonding the adhesive plastic film to the base film while maintaining the vacuum inside the chamber by pumping the air inside the chamber to the outside through the pumping line.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is to be understood that the invention is not limited to the disclosed exemplary embodiments, Is also within the scope of protection of the present invention.

10: base plate 20: information display film
21: base film 23: circuit pattern
23 ': disconnection part of the circuit pattern 23a: resistance increase pattern part
25: LED 30: information compartment film
31: opening of the information compartment film 200: chamber device
210: chamber 220: fixed plate
230: pressure plate 240: upper pumping line
250: lower pumping line

Claims (7)

Base plate;
An information display film attached on the base plate and configured to display information with LEDs;
An information partition film attached on the information display film, the display information portion being opened, and having a color different from that of the information display film,
The information display film includes a base film printed with a circuit pattern, an LED mounted on the base film to be connected to the circuit pattern, and an adhesive plastic film adhesively bonded to the front and rear surfaces of the base film. LED information display panel, characterized in that.
The method according to claim 1,
The circuit pattern is printed so that the portion where the LED is to be mounted is disconnected, and the LED is mounted so that the disconnected circuit pattern can be electrically connected, and after coating silicon on both contacts of the mounted LED, for 7 hours to LED information display board, characterized in that drying for 10 hours.
The method according to claim 2,
The circuit pattern includes a plurality of resistance increase pattern parts for increasing lead resistance, wherein the plurality of resistance increase pattern parts are connected to the LEDs, respectively, and the respective resistance increase pattern parts are formed by connecting a plurality of uneven patterns. And a resistance increase pattern portion connected to the LED at a position close to the connector, wherein the resistance increase pattern portion is configured at a more uneven pattern than the resistance increase pattern portion connected to the LED at a position far from the connector.
The method according to claim 3,
LED information display panel, characterized in that the insulating layer is formed on the circuit pattern is coated with an ink of the same color as the base film is laminated.
The method according to claim 1,
The adhesive plastic film is formed with an adhesive on one surface of the plastic film, the plastic film is any one of polyvinyl chloride (PVC), polyvinyliolene chloride (PVDC), polycarbonate (PC), polypropylene (PP) and PET (Polyester) film LED information display panel, characterized in that one.
The method according to claim 5,
The process of adhesively bonding the adhesive plastic film to the front and rear surfaces of the base film on which the circuit pattern is printed and the LED is mounted is performed in a chamber device,
A chamber, which is formed under the chamber and is maintained in a heated state when performing the process, is fixed to the base film, and installed to be able to move up and down on the chamber, and is placed on the fixed base film when performing the process. And a pressure plate for contacting and pressing the adhesive plastic film, and a pumping line formed in the chamber to form the inside of the chamber in a vacuum atmosphere.
The method of claim 6,
The base film is fixed on the fixed plate heated to a temperature of 60 ℃ to 80 ℃, the pressure plate in contact with the pressure-sensitive adhesive plastic film placed on the base film, the pressure through the pumping line And attaching the adhesive plastic film to the base film while maintaining the vacuum inside the chamber by pumping air inside the chamber to the outside.

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