KR101042775B1 - Led display board with bar-type led module - Google Patents

Abstract

PURPOSE: A light emitting diode signboard equipped with a bar-shaped light emitting diode module is provided to facilitate an expanding operation with respect to the displaying surface of the signboard. CONSTITUTION: A plurality of light emitting diode modules(20) includes a first connecting part and a second connecting part. The first connecting part is arranged at one end of a substrate and includes a terminal inserting groove. The second connecting part is arranged at another end of the substrate and includes a terminal. A plurality of external connecting parts(45) includes a terminal inserting groove in which the terminal of the second connecting part is inserted. The external connecting parts are in connection with a cable with a plug.

Description

LED display board with bar type LED module {LED display board with bar-type LED module}

The present invention relates to an LED signboard, and more particularly to an LED signboard composed of a combination of a bar type LED module consisting of a plurality of LEDs.

A light-emitting diode (LED) is a type of diode that emits light when current flows, and is made by bonding a p-type semiconductor and an n-type semiconductor to each other. When a forward voltage is applied to the electrode of the LED, holes of the p-type carrier are diffused into the n region, and electrons of the n-type carrier are diffused into the p region, where an energy gap occurs when electrons and holes recombine with each other near the junction. Light with wavelengths corresponding to At this time, the wavelength of the emitted light depends on the material used, and in general, the light emitting efficiency of the direct transition semiconductor is excellent.

LEDs are more stable and reliable than other thermal conversion light emitting devices, have low power consumption, and have long life. At present, LED technology is rapidly evolving, and high-efficiency, high-brightness LEDs of various colors are being released. One LED acts as a point light source, but when a plurality of LEDs are collected, it may act as a line light source or a surface light source. With the development of LED technology, the application field of LED, which was applied to simple display devices, is also expanding.

Recently, LED is used as a light source of a backlight unit used in a flat panel display, and the use of LEDs as outdoor indicators such as signal lamps and electronic signs is increasing along with high brightness. In particular, the LED display board using the LED expresses the text by using the LED matrix (Matrix), and can display a variety of characters and graphics that are changed differently from the existing fixed display board, advertising and promotion, situation board, information delivery media Demand is increasing significantly.

The LED signboard is a basic LED matrix, which constitutes a suitable module, and these LED modules are combined to form a screen. In other words, by arranging a large number of LEDs and controlling the lighting of each LED, various characters can dynamically represent a graphic.

Most of the LED displays currently on the market are composed of a combination of rectangular LED modules, but the demand for various types of LED displays is increasing according to the diversification of installation sites and the need for new designs.

SUMMARY OF THE INVENTION The present invention has been made in view of this point, and an object of the present invention is to provide an LED display panel that can realize various types of display surfaces by combining a bar type LED module having a plurality of LEDs.

LED display panel according to the present invention for achieving the above object is a substrate having a plurality of LED pixels consisting of one or more LEDs in a row and a transparent cover that is coupled to the substrate to cover the front of the substrate and one end of the substrate A plurality of LED modules having a first connector having a terminal insertion groove and a second connector mounted at the other end of the substrate and having a terminal, and having a terminal insertion groove into which a terminal of the second connector can be inserted. A plurality of external connectors connected to a coupled cable, a plurality of plug connection sockets to which the plugs can be connected, and connected to the LED modules through the external connectors to control lighting operation of each LED pixel of the LED module. At least one drive module, including a controller connected to the drive module for providing a control signal to the drive module. The plurality of LED modules constitute a light emitting unit in which a plurality of LED modules are connected in a row through the first connector and the second connector, and a plurality of LED modules are connected to the driving module through one external connector.

The LED display panel according to the present invention further includes a frame for supporting the light emitting unit and a fixture fixed to the frame to support the LED module, wherein any one of the LED module and the fixture is provided with a fixing hole. The other one may include a fixing protrusion inserted into the fixing hole.

The frame has a curved shape to have a predetermined curvature, wherein the outer connector and the fixture are arranged along a curved outer surface of the frame, the light emitting unit is a plurality of surfaces coupled to each of the outer connector and the fixture You can make the display surface of.

The LED display panel according to the present invention may further include a stopper coupled to an end of the LED module which is not coupled to the external connector among the two LED modules constituting both ends of the light emitting unit.

The transparent cover has a light diffusion part surrounding the circumference of each LED so as to diffuse the light generated by the respective LEDs around the LED, and has a first substrate insertion groove into which one end of the substrate can be inserted. A first coupling part provided at one end of the light diffusion part, a second coupling part having a second substrate insertion groove into which the other end of the substrate can be inserted, and a second coupling part provided at the other end of the light diffusion part.

The first connector may be disposed inward from the end of the transparent cover, and the second connector may be disposed to protrude from the end of the transparent cover.

An outer surface of the second connector may be provided with a sealing member for sealing between the first connector and the second connector or between the second connector and the external connector.

In the LED display panel according to the present invention, since a plurality of bar-type LED modules are connected in a row to configure one light emitting unit, the length of the light emitting unit can be extended and the display surface composed of the plurality of light emitting units can be easily expanded. And if a problem occurs in some LED modules of the plurality of LED modules constituting the display surface, maintenance is easy because only the LED module having a problem needs to be replaced.

In addition, the LED display panel according to the present invention can be configured by simply combining the LED module of the size that is easy for the operator to configure the display surface of various sizes, all parts are made of prefabricated, easy to store and transport, easy to install easy.

In addition, the LED display panel according to the present invention may implement various types of display surfaces such as curved display surfaces as well as flat display surfaces by changing the shape of the frame or variously changing the arrangement of the light emitting units.

1 is a front view showing an LED display board according to an embodiment of the present invention.
2 and 3 is an exploded view showing a part of the configuration of the LED display board according to an embodiment of the present invention.
4 is a front view showing the LED display board according to another embodiment of the present invention.
5 is a plan view showing an LED display board according to another embodiment of the present invention.

Hereinafter, with reference to the accompanying drawings, it will be described in detail with respect to the LED display according to the present invention.

In describing the present invention, the size or shape of the components shown in the drawings may be exaggerated or simplified for clarity and convenience of description. In addition, terms that are specifically defined in consideration of the configuration and operation of the present invention may vary depending on the intention or custom of the user or operator. These terms are to be construed in accordance with the meaning and concept consistent with the technical idea of the present invention based on the contents throughout the present specification.

As shown in FIG. 1, the LED display board 10 according to an exemplary embodiment of the present invention includes a plurality of light emitting units 15 and a plurality of light emitting units 15, each of which includes a bar type LED module 20. Frame 40 for supporting the light source, a plurality of external connectors 45 to which the light emitting unit 15 is connected, a drive module 55 and a drive module 55 for controlling the lighting operation of the light emitting unit 15. The controller 60 is connected to the driving module 55 to provide a control signal. In addition, although not shown, the LED display board 10 according to an embodiment of the present invention may further include a receiver for receiving a signal from a remote controller and a remote controller for user operation and providing the signal to the controller 60.

The plurality of light emitting units 15 constitute a display surface for displaying information. In addition, the driving module 55 is connected to the plurality of light emitting units 15 through the plurality of external connectors 45, and controls the light emission operation of each LED pixel 21 provided in the light emitting unit 15. The driving module 55 is provided with a plurality of plug connection sockets 56 for connecting the external connector 45. Although the drawings show that two driving modules 55 are connected to one controller 60, the number of driving modules 55 or the number of light emitting units 15 that may be connected to the driving module 55 may vary. can be changed.

The controller 60 is connected to the drive module 55 through a cable 61. The controller 60 is supplied with external power and controls the overall operation of the LED sign 10. In particular, the controller 60 provides a control signal to the drive module 55 so that an image such as a character, a symbol, or a picture displayed on the display surface can be displayed according to a user's manipulation. Since the functions of the drive module 55 and the controller 60 are well known, detailed description thereof will be omitted.

As shown in FIG. 2 and FIG. 3, one light emitting unit 15 is composed of a plurality of LED modules 20. The LED module 20 includes a plurality of LED pixels 21 arranged in a line, a substrate 25 on which the plurality of LED pixels 21 are mounted, and a transparent cover coupled to the substrate 25 to cover the front surface of the substrate 25. (33).

The LED pixel 21 is composed of three LEDs 22, 23, 24 representing three primary colors, such as a red (R) LED (22), a blue (B) LED (23), and a green (G) LED (24). It is composed. Of course, in the present invention, the type or number of LEDs constituting the LED pixel 21 may be variously changed. For example, one LED may constitute one LED pixel 21. As shown in the figure, the LED pixels 21 are preferably spaced apart at regular intervals in the longitudinal direction of the substrate 25, but need not be limited to this arrangement structure.

The substrate 25 is equipped with a first connector 26 and a second connector 28 in addition to the plurality of LED pixels 21. The first connector 26 is disposed at one end of the substrate 25, and the second connector 28 is disposed at the other end of the substrate 25. The plurality of LED pixels 21 are all disposed between the first connector 26 and the second connector 28. Although not shown, the substrate 25 has a circuit pattern for electrically connecting the plurality of LED pixels 21, the first connectors 26, and the second connectors 28. A fixing hole 31 is provided in the middle of the substrate 25.

The first connector 26 has a terminal insertion groove 27, and the second connector 28 has a terminal 29. The terminal 29 of the second connector 28 provided in the other LED module 20 is inserted into the terminal insertion groove 27 of the first connector 26, whereby the other LED module 20 is inserted into the first connector 26. ) Can be connected. In addition, the terminal 29 of the second connector 28 is inserted into the terminal insertion groove 27 of the first connector 26 provided in the other LED module 20, whereby another LED module ( 20) can be connected. In addition, the terminal 29 of the second connector 28 may be inserted into the terminal insertion groove 46 provided in the external connector 45 and connected to the external connector 45.

2 and 3, the first connector 26 of the LED module 20 may be disposed inward of the upper end of the transparent cover 33, and the second connector 28 may be a transparent cover ( It is better to protrude outward than the lower end of 33). This is to prevent the terminal 29 or the terminal insertion groove 27 from being exposed to the outside when the two LED modules 20 are connected. When rainwater or the like flows into the first connector 26 or the second connector 28 of the two LED modules 20 connected to each other, a short circuit or an electric leakage may occur, so that the electrical connection between the two LED modules 20 is transparently covered. By arrange | positioning inside (33), the risk of a short circuit or an electric leakage can be reduced.

In addition, the external connector 45 is a coupling groove into which the protruding second connector 28 of the LED module 20 can be inserted so that the electrical connection between the LED module 20 and the external connector 45 is not exposed to the outside. It is good to have (47). In addition, when the sealing member 30, such as rubber or silicone, is attached to the outer surface of the second connector 28, the electrical connection between the first connector 26 and the second connector 28, or the second connector 28 is provided. And rainwater can be more effectively blocked from flowing into the electrical connection portion between the external connection port 45.

As shown in FIGS. 1 and 2, a plug 32 is provided at an end of the LED module 20 that is not coupled to the external connector 45 of the two LED modules 20 constituting both ends of the light emitting unit 15. ) Are combined. The stopper 32 covers the end of the LED module 20 to prevent the first connector 26 of the LED module 20 from being exposed to the outside. The stopper 32 may be made of a material having elasticity such as rubber or silicone so as to stably adhere to the end of the LED module 20.

The structure of the first connector 26, the structure of the second connector 28, and the structure of the external connector 45 need not be limited to those shown. That is, the first connector 26 can be changed to another structure that can be connected to the other LED module 20, and the second connector 28 can be connected to the other LED module 20 or the external connector 45. It can be changed to other structures. For example, a terminal protruding from the first connector 26 may be provided and a terminal insertion groove into which the terminal may be inserted into the second connector 28 may be provided. In this case, the external connector 45 should be changed to have a terminal that can be inserted into the terminal insertion groove of the second connector 28.

As shown in FIG. 3, the transparent cover 33 of the LED module 20 includes a light diffusion part 34 and a light diffusion part surrounding the circumference of the plurality of LED pixels 21 arranged in a line on the substrate 25. The first coupling part 35 provided at one end of the 34, and the second coupling part 37 provided at the other end of the light diffusing part 34. The first coupling part 35 is provided with a first substrate insertion groove 36 into which one end of the substrate 25 can be inserted, and the other end of the substrate 25 is inserted into the second coupling part 37. A second substrate insertion groove 38 is provided. Both ends of the substrate 25 are inserted into the first substrate insertion groove 36 and the second substrate insertion groove 38 of the transparent cover 33, so that the substrate 25 and the transparent cover 33 are separate fastening mechanisms. Can be combined without.

The light diffusion unit 34 is formed in a rounded shape to surround the circumference of the plurality of LED pixels 21. The light diffusion unit 34 may diffuse light generated from the plurality of LED pixels 21 to the front and both sides of the LED pixel 21.

The external connector 45 is for electrically connecting the light emitting unit 15 and the driving module 55 and has a terminal insertion groove 46 corresponding to the terminal 29 of the LED module 20. The plug 49 is connected to the external connector 45 via a cable 48. The plug 49 is inserted into the positive insertion socket 56 of the drive module 55 so that the external connector 45 is connected to the drive module 55. The external connector 45 may be fixed to the frame 40 through a fixing member 5 such as a screw. Although not shown, when the external connector 45 is hinged to the frame 40, the LED module 20 may be detachably attached to the frame 40 more freely.

The light emitting unit 15 may be fixed to the frame 40 through the fixture 50. The fixture 50 has a fixture 51 that protrudes to be inserted into the fixing hole 31 of the LED module 20 and is fixed to the frame 40 through a fixing member 5 such as a screw. By fitting the LED module 20 to the fixture 51 of the fixture 50 fixed to the frame 40, the LED module 20 can be easily fixed to the frame 40.

Fixture 50 may be combined with the LED module 20 may be changed to another structure that can support the LED module 20. For example, a fixing hole may be provided in the fixture 50, and a fixing protrusion may be provided in the LED module 20 to be inserted into the fixing hole of the fixture 50.

As described above, in the LED display panel 10 according to the present invention, since a plurality of bar-type LED modules 20 are connected in a row to constitute one light emitting unit 15, the length of the light emitting unit 15 may be extended and a plurality of light emitting units 15 may be formed. The display surface composed of the light emitting units 15 can be easily expanded. And even if a problem occurs in some LED module 20 of the plurality of LED modules 20 constituting the display surface, maintenance is easy because only the LED module 20 having a problem needs to be replaced.

In addition, the LED display board 10 according to the present invention can be configured by simply combining the LED module 20 of the size easy to handle by the operator to configure the display surface of various sizes, all parts are made of prefabricated, storage and transport It is easy and easy to install.

4 and 5 illustrate an LED display board according to another embodiment of the present invention.

4 and 5 is the LED display board 70 shown in most of the configuration is the same as the LED display board 10 according to an embodiment of the present invention, except that a plurality of light emitting unit 15 is a semi-circular frame It is disposed along the outer surface of 40 to form a curved display surface.

A plurality of external connectors 45 and a plurality of fixtures 50 are disposed at regular intervals around the outer surface of the frame 40, and a drive module 55 and a controller 60 are installed inside the frame 40. Each light emitting unit 15 is coupled to the external connector 45 and the fixture 50 to be supported by the frame 40 and at the same time connected to the drive module 55.

As described above, the LED display panel 70 according to the present invention may be modified in various shapes such as not only a flat display surface but also a curved display surface by changing the shape of the frame 40 or variously changing the arrangement of the light emitting unit 15. The display surface of can be implemented.

The embodiments of the present invention described above and illustrated in the drawings should not be construed as limiting the technical idea of the present invention. The protection scope of the present invention is limited only by the matters described in the claims, and those skilled in the art can improve and change the technical idea of the present invention in various forms. Accordingly, such improvements and modifications will fall within the protection scope of the present invention as long as it will be apparent to those skilled in the art.

10, 70: LED display board 15: light emitting unit
20: LED module 21: LED pixel
22, 23, 24: LED 25: substrate
26, 28: 1st, 2nd connection port 27, 46: terminal insertion groove
29: terminal 33: transparent cover
34: light diffusion part 35, 37: first and second coupling part
36, 38: first and second substrate insertion groove 40, 71: frame
45: external connection port 49: plug
50: fixture 51: fixing protrusion
55: drive module 60: controller

Claims (7)

A substrate in which a plurality of LED pixels composed of one or more LEDs are mounted in a line, a transparent cover coupled to the substrate to cover the front surface of the substrate, a first connector mounted at one end of the substrate and having a terminal insertion groove, A plurality of LED modules mounted on the other end and having a second connector having a terminal;
A plurality of external connection ports having a terminal insertion groove into which the terminals of the second connection port can be inserted and to which a cable coupled with a plug is connected;
At least one driving module having a plurality of plug connection sockets to which the plugs can be connected, and connected to the LED module through the external connection port to control a lighting operation of each LED pixel of the LED module; And
And a controller connected to the drive module to provide a control signal to the drive module.
The plurality of LED module is characterized in that the LED is characterized in that a plurality of in series through the first connection port and the second connection port constitutes one light emitting unit connected to the drive module through a plurality of the external connection port Scoreboard. The method of claim 1,
A frame for supporting the light emitting unit; And
Fixtures are fixed to the frame to support the LED module; further includes,
Any one of the LED module and the fixture is provided with a fixing hole, the other LED display panel, characterized in that the fixing projection is inserted into the fixing hole is provided. The method of claim 2,
The frame has a curved shape to have a predetermined curvature,
The outer connector and the fixture is disposed along a plurality of curved outer surface of the frame,
And a plurality of light emitting units are coupled to the respective external connectors and the fixtures to form curved display surfaces. The method of claim 1,
The LED display board, characterized in that further comprising a stopper coupled to the end of the LED module that is not coupled to the external connector of the two LED modules constituting both ends of the light emitting unit. The method of claim 1,
The transparent cover,
Light diffusion unit surrounding the circumference of each LED to diffuse the light generated by the respective LEDs around the LED,
A first coupling part having a first substrate insertion groove into which one end of the substrate can be inserted, and provided at one end of the light diffusion part; and
And a second coupling part having a second substrate insertion groove into which the other end of the substrate can be inserted and provided at the other end of the light diffusion part. The method of claim 1,
The first connector is disposed inwardly than the end of the transparent cover, the second connector is disposed so as to protrude beyond the end of the transparent cover. The method according to claim 6,
The outer surface of the second connector is provided with a sealing member for sealing between the first connector and the second connector or between the second connector and the external connector is provided.

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