KR102479698B1 - High-resolution LED Signage with Improved Durability and Power Efficiency - Google Patents

Abstract

The present invention relates to a high-resolution LED display board with improved durability and power efficiency, and more specifically, to a high-resolution LED display board with improved durability and power efficiency, which improves the durability of the coupling between a substrate and an LED device, easily reduces the influence of external force and external contaminants through a cover, and improves resolution by reducing distance between pixels.

Description

High-resolution LED signage with improved durability and power efficiency {High-resolution LED Signage with Improved Durability and Power Efficiency}

The present invention relates to a high-resolution LED display board with improved durability and power efficiency, and more particularly, improves the durability of fastening between a substrate and an LED element, and easily reduces the influence of external force and external contaminants through a cover part, It relates to a high-resolution LED display board with improved durability and power efficiency, capable of improving resolution by reducing the distance between pixels.

LED signboards provide visual contents such as advertisements to various people, and to provide visual contents to more people, LED signboards are gradually becoming larger, and they are used not only indoors such as auditoriums and halls of buildings, but also in playgrounds, rooftops, and roadsides. It is also being installed in various places outdoors.

In this way, as the LED signboard is enlarged and exposed to various environments as it is installed outdoors, it is inevitably required to develop a technology for improving durability as well as improving the resolution of the LED signboard.

Among the conventional technologies, as a technology for improving the durability of LED signboards, Korean Patent Registration No. 10-1385264 ("LED signboard power saving control system and method") is a method for improving the lifespan (durability) of LED signboards. In addition to the red, green, and blue LEDs traditionally included in one pixel, white LEDs are added to minimize the use of red, green, and blue LEDs in the case of white color output, thereby improving the lifespan of LED signboards. It describes how it can be done. However, in the case of the technology, since one pixel includes four LED elements, there is a limit to reducing the distance between two pixels, and thus, there is difficulty in improving resolution according to the distance between pixels.

In this way, in order to improve the problem of the LED display board in which a plurality of LED elements are included in the pixel, surface mount device (SMD) type LED elements that can implement red, green, and blue light have been conventionally used, but SMD type In the case of the device, there is a problem of durability, such as being easily separated from the substrate by an external force such as a person or strong wind, and there is still a limit in reducing the distance between pixels due to the limit of the surface size of the device.

Therefore, as described above, it is still required to develop a new LED display board to improve the resolution and durability of the LED display board.

Korean Patent Registration No. 10-1385264 (LED display board power saving control system and method, registered on April 8, 2014)

The present invention relates to a high-resolution LED display board with improved durability and power efficiency, and more particularly, improves the durability of fastening between a substrate and an LED element, and easily reduces the influence of external force and external contaminants through a cover part, An object of the present invention is to provide a high-resolution LED display board with improved durability and power efficiency, which can improve resolution by reducing the distance between pixels.

In one embodiment of the present invention to solve the above problems, in one embodiment of the present invention, a high resolution LED display board with improved durability and power efficiency, including a lens unit, a plurality of LED elements for emitting light of colors determined according to a control signal; a substrate unit in which the plurality of LED elements are arranged in a matrix form at regular intervals and electrically connects the plurality of LED elements; a case portion accommodating the substrate portion and having a predetermined height such that lens portions of the plurality of LEDs electrically connected to the substrate portion are exposed to the outside; And a plurality of through-holes fastened to the upper side of the case portion and electrically connected to the substrate portion accommodated in the case portion to expose the lens portion of the plurality of LEDs to the outside, and a plurality of through-holes formed in each row direction. It provides an LED display board including; a cover portion on the upper side of which a cover portion protruding in a direction perpendicular to the through hole is formed.

In one embodiment of the present invention, a resin layer in which resin is injected and cured is included in the case portion accommodating the substrate portion, and the resin layer is electrically connected to a plurality of LEDs electrically connected to the substrate portion accommodated in the case portion. It may have a predetermined thickness so that only the lens portion of the lens portion is exposed.

In one embodiment of the present invention, the LED element is arranged in a line, a plurality of lead frames for controlling a plurality of predetermined colors that can be emitted from the LED element; including, the plurality of Stoppers having a width wider than the line width of the corresponding lead frame may be formed at predetermined positions of each of the lead frames arranged at both ends of the lead frame.

In one embodiment of the present invention, in the lens unit of the LED device, upper portions of the plurality of lead frames are accommodated, and irregularities may be formed at predetermined positions on upper portions of one or more lead frames accommodated in the lens unit. there is.

In one embodiment of the present invention, the region of the shielding portion in contact with the upper side of the plurality of through holes is curved to correspond to the upper side of the through hole in contact with it, and grooves may be formed between the plurality of curved regions.

In one embodiment of the present invention, the cover part has a first groove formed between a plurality of through-holes formed in the horizontal direction, and a first groove formed on both sides of the through-hole and a cover formed above and below the through-hole A plurality of second grooves may be formed along the horizontal direction in the region partitioned by the portion.

According to one embodiment of the present invention, since only the lens part of the LED element is exposed to the outside according to the fastening of the case part and the cover part, the effect of protecting the LED element from the outside can be exerted.

According to one embodiment of the present invention, the LED element can be protected from external contaminants by the covering part formed on the cover part, and at the same time, the light source output from the LED element can be protected from an external light source.

According to one embodiment of the present invention, the inside of the case containing the board portion electrically connected to the LED device includes a resin layer in which resin is injected and cured, thereby fixing the LED device and at the same time having an effect of protecting the board portion. can exert

According to one embodiment of the present invention, since stoppers are formed on the lead frames arranged at both ends among a plurality of lead frames arranged in a row included in the LED elements, the plurality of LED elements are electrically connected to the substrate at a uniform height. It can exert an effect that can be connected.

According to one embodiment of the present invention, since one or more lead frames accommodated in the lens unit of the LED device are provided with irregularities, it is possible to prevent separation of the lead frame from the lens unit.

According to one embodiment of the present invention, since the groove is formed between the curved regions of the shielding portion, external substances such as rainwater can be discharged or wind pressure caused by strong wind can be endured.

According to one embodiment of the present invention, since a plurality of second grooves are formed on the upper surface of the cover unit, light output from the LED device can be reflected to improve light efficiency.

1 schematically shows an LED display board including a conventional SMD type LED element according to an embodiment of the present invention.
2 schematically shows a high-resolution LED display board having improved durability and power efficiency according to an embodiment of the present invention.
Figure 3 schematically shows a system including an LED electronic signboard according to an embodiment of the present invention.
4 schematically illustrates a case portion accommodating a substrate portion electrically connected to an LED device according to an embodiment of the present invention.
5 schematically shows an LED device according to an embodiment of the present invention.
6 schematically illustrates a part of a plan view and a front view of a cover unit according to an embodiment of the present invention.
7 schematically illustrates a portion of a side view of a cover unit according to an embodiment of the present invention.

In the following, various embodiments and/or aspects are disclosed with reference now to the drawings. In the following description, for purposes of explanation, numerous specific details are set forth in order to facilitate a general understanding of one or more aspects. However, it will also be appreciated by those skilled in the art that such aspect(s) may be practiced without these specific details. The following description and accompanying drawings describe in detail certain illustrative aspects of one or more aspects. However, these aspects are exemplary and some of the various methods in principle of the various aspects may be used, and the described descriptions are intended to include all such aspects and their equivalents.

Moreover, various aspects and features will be presented by a system that may include a number of devices, components and/or modules, and the like. It should also be noted that various systems may include additional devices, components and/or modules, and/or may not include all of the devices, components, modules, etc. discussed in connection with the figures. It must be understood and recognized.

"Example", "example", "aspect", "exemplary", etc., used herein should not be construed as preferring or advantageous to any aspect or design being described over other aspects or designs. . The terms '~unit', 'component', 'module', 'system', 'interface', etc. used below generally mean a computer-related entity, and for example, hardware, hardware It may mean a combination of and software, software.

Also, the terms "comprises" and/or "comprising" mean that the feature and/or element is present, but excludes the presence or addition of one or more other features, elements and/or groups thereof. It should be understood that it does not.

In addition, terms including ordinal numbers, such as first and second, may be used to describe various components, but the components are not limited by the terms. These terms are only used for the purpose of distinguishing one component from another. For example, a first element may be termed a second element, and similarly, a second element may be termed a first element, without departing from the scope of the present invention. The terms and/or include any combination of a plurality of related recited items or any of a plurality of related recited items.

In addition, in the embodiments of the present invention, unless otherwise defined, all terms used herein, including technical or scientific terms, are generally understood by those of ordinary skill in the art to which the present invention belongs. has the same meaning as Terms such as those defined in commonly used dictionaries should be interpreted as having a meaning consistent with the meaning in the context of the related art, and unless explicitly defined in the embodiments of the present invention, an ideal or excessively formal meaning not be interpreted as

1 schematically shows an LED electronic display board 1000 including a conventional SMD type LED element 1200 according to an embodiment of the present invention.

The drawing shown in (A) of FIG. 1 schematically shows a substrate 1100 on which a conventional Surface Mount Device (SMD) type LED device 1200 is mounted, and the SMD type LED device 1200 is The mounted substrate unit 1100 may be accommodated in the LED sign board 1000.

Since the SMD type LED element 1200 can be fixed to the surface of the substrate 1100, on the side of installing the LED display board 1000, the element is inserted into the conventional through-hole provided in the substrate and soldered. Compared to the processing method, it has the advantage of being easily installed, but on the other hand, since it is mounted on the surface of the substrate unit 1100, when a force received by a person or an impact from other external sources is applied, the substrate is easily There is a problem that can be separated from the unit 1100, that is, it is not effective in terms of durability.

In addition, as shown in (B) of FIG. 1, since the SMD type LED elements 1200 are arranged at regular intervals, foreign substances may be injected into the space between the SMD type LED elements 1200. As a result, contamination of the substrate 1100 is caused, and in the long term, there is an additional problem that can give a problem to the durability of the LED display board 1000.

In addition, as shown in (B) of FIG. 1, a plurality of SMD type LEDs are formed due to the structural limitations of the SMD type LED device 1200, specifically, the side thickness of the case of the SMD type LED device 1200. Even if the devices 1200 are arranged as closely as possible, there is a minimum distance between light sources, so there is a limit to reducing the distance (pitch) between pixels.

On the other hand, although not shown in FIG. 1, in order to protect the SMD type LED device 1200 and to solve the above-mentioned problem of introducing foreign substances, the board portion 1100 on which the SMD type LED device 1200 is mounted. ) may be attached to the surface of the UV coated sticker. Nevertheless, in the case of a UV-coated sticker, it deteriorates with time due to an external light source and light output from the SMD type LED device 1200, and thus, additional problems such as periodically replacing the sticker exist.

Hereinafter, a high-resolution LED display board 2000 with improved durability and power efficiency of the present invention, which can improve the problems of the above-described LED display board 1000 in which the above-described SMD type LED elements 1200 are mounted, will be described in detail. let it do

2 schematically shows a high-resolution LED display board 2000 with improved durability and power efficiency according to an embodiment of the present invention.

As shown in FIG. 2, a high-resolution LED display board 2000 with improved durability and power efficiency includes a lens unit 2310 and a plurality of LED elements 2300 emitting colors determined according to control signals; a substrate unit 2200 in which the plurality of LED elements 2300 are arranged in a matrix form at regular intervals and electrically connects the plurality of LED elements 2300; a case portion 2100 having a predetermined height for accommodating the substrate portion 2200 and exposing the lens portion 2310 of the plurality of LEDs electrically connected to the substrate portion 2200 to the outside; And a plurality of through holes fastened to the upper side of the case part 2100 and exposing the lens part 2310 of the plurality of LEDs electrically connected to the substrate part 2200 accommodated in the case part 2100 to the outside ( 2410) is formed, and a cover part 2400 is formed on the upper side of the plurality of through holes 2410 formed in each row direction, and a shielding part 2420 protruding in a direction perpendicular to the through holes 2410 is formed; can include

Specifically, as shown in (A) of FIG. 2 , the LED device 2300 of the present invention may be electrically connected to the substrate 2200, and may be electrically connected to the substrate 2200 according to a control signal received through the base unit 2200. One or more colors among a plurality of set colors may be output. More specifically, the LED device 2300 can output one or more colors among red, green, and blue, and can emit a color according to a control signal by combining two or more colors among a plurality of colors. In addition, the LED element 2300 includes a lens unit 2310 and a plurality of lead frames 2320, and the lens unit 2310 protects the LED light emitting chips and radiates light output from the LED light emitting chips to the outside. It can play the role of a lens that does. Meanwhile, one or more lead frames 2320 among the plurality of lead frames 2320 may receive a control signal for a preset color from the substrate unit 2200 .

The board part 2200 is electrically connected to the electrically driven components included in the LED display board 2000, and provides power and control signals supplied from the power supply connected to the board part 2200 to other components. can On the other hand, the board portion 2200 is provided with a plurality of holes into which the lead frame 2320 of the LED element 2300 can be coupled so that the LED element 2300 can be electrically connected, and the plurality of LED elements 2300 ) are arranged in a matrix form. Meanwhile, the substrate part 2200 may have an area smaller than the inner area of the case part 2100 so as to be accommodated inside the case part 2100 .

The case part 2100 can protect other components including the plurality of LED elements 2300 electrically connected to the substrate part 2200 from the outside by accommodating the substrate part 2200 . In addition, the height of the substrate portion 2200 may be determined so that the lens portion 2310 of the LED device 2300 electrically connected to the substrate portion 2200 may be exposed outside the case portion 2100 .

The cover part 2400 includes a plurality of lens parts 2310 of the plurality of LED elements 2300 electrically connected to the substrate part 2200 accommodated in the case part 2100 to be exposed to the outside. A through hole 2410 is formed, and the number of the plurality of through holes 2410 may be the same as the number of the plurality of LED elements 2300 electrically connected to the substrate 2200, and the plurality of through holes 2410 may be formed. The through holes 2410 of may be formed in a matrix form in the same manner as being arranged in a matrix form in the substrate part 2200 .

Meanwhile, the cover part 2400 may be fastened to the upper side of the case part 2100 . Specifically, a plurality of screw grooves (not shown) are formed on the bottom surface of the cover part 2400, and the plurality of screw grooves (not shown) are formed in the case part 2100 (not shown). ), the cover part 2400 may be fastened to the upper side of the case part 2100 by connecting screws to each of the extended screw grooves (not shown).

In addition, a covering portion 2420 is formed on the cover portion 2400 . The cover part 2420 is disposed in the exposure direction of the lens part 2310 of the LED element 2300 exposed through the through hole 2410 of the cover part 2400, and the exposed lens of the LED element 2300 It may be disposed adjacent to unit 2310.

As such, the plurality of LED elements 2300, the substrate part 2200, the case part 2100 and the cover part 2400 of the present invention, as shown in FIG. 2 (B), a plurality of LED elements 2300 ) is electrically connected to the substrate 2200, the substrate 2200 to which the plurality of LED elements 2300 are electrically connected is accommodated inside the case 2100, and the case in which the substrate 2200 is accommodated. The cover part 2400 is fastened to the upper side of the part 2100 and can be combined in one form.

On the other hand, a connector (not shown) to which a power cable for supplying power to components electrically connected to the substrate portion 2200 can be connected to the rear surface of the substrate portion 2200 and a control signal to the corresponding component. A connector (not shown) to which a cable can be connected may be provided, and a plurality of connectors provided on the rear surface of the substrate unit 2200 may be led out to the rear of the case unit 2100. A hole (not shown) of a predetermined size may be formed at a position corresponding to the region where the connector is located.

In addition, the size of the LED display board 2000 of the present invention is not limited to the LED display board 2000 shown in FIG. For example, the number of the plurality of LED elements 2300 arranged in the LED display board 2000 of the present invention is not limited to the number shown in FIG. 2 . Additionally, in another embodiment of the present invention, the LED signboard 2000 shown in FIG. 2 may correspond to a kind of LED panel in the form of a module, and a plurality of LED panels are electrically connected to operate as one LED signboard 2000. can do.

Figure 3 schematically shows a system including an LED display board 2000 according to an embodiment of the present invention.

As shown in FIG. 3, a system including an LED display board 2000 may include one or more LED display boards 2000 (LED panels) and an electronic display board controller 2600 communicating with the one or more LED panels. .

The electronic display board controller 2600 may correspond to a computing device including one or more processors and one or more memories, such as a desktop or server. It is provided to the electronic display board 2000, and specifically, the contents and contents received by the electronic display board controller 2600 from the panel control unit 2500 electrically connected to the board unit 2200 included in the LED display board 2000. It is possible to control the driving of the plurality of LED elements 2300 included in the LED display board 2000 by receiving a control signal.

On the other hand, the electronic display board controller 2600 can divide the content to be displayed and control the divided content to be displayed for each LED panel, and accordingly, the divided content assigned to each LED panel is reproduced, so that the entire content can be reproduced. can

4 schematically illustrates a case 2100 accommodating a substrate 2200 to which an LED device 2300 is electrically connected according to an embodiment of the present invention.

As shown in FIG. 4, a resin layer 2110 in which resin is injected and cured is included in the case portion 2100 in which the substrate portion 2200 is accommodated, and the resin layer 2110, It may have a predetermined thickness so that only the lens part 2310 of the plurality of LEDs electrically connected to the substrate part 2200 accommodated in the case part 2100 is exposed.

Specifically, (A) of FIG. 4 schematically shows a plan view of a case portion 2100 in which a substrate portion 2200 to which a plurality of LED elements 2300 are electrically connected is accommodated. As shown in (A) of FIG. 4 , a substrate portion 2200 to which a plurality of LED elements 2300 are electrically connected is received inside the case portion 2100, and the case portion in which the substrate portion 2200 is accommodated is accommodated. A resin layer 2110 may be formed inside the case part 2100 by injecting and curing the resin into the inside of the case 2100 .

Therefore, when the case part 2100 is viewed from above, the substrate part 2200 accommodated inside the case part 2100 is not exposed by the resin layer 2110, and a plurality of substrate parts 2200 are electrically connected to the substrate part 2200. Only the lens unit 2310 of the LED element 2300 of may be exposed to the outside.

Meanwhile, (B) of FIG. 4 schematically shows a side view of the case portion 2100 shown in (A) of FIG. 4 . As shown in (B) of FIG. 4 , the case portion 2100 allows the lens portion 2310 of the LED device 2300 electrically connected to the substrate portion 2200 to be exposed to the outside of the case portion 2100. ) can be determined.

In addition, the height of the resin layer 2110, that is, the amount of resin injected into the case part 2100 is the lens part of the LED element 2300 electrically connected to the substrate part 2200 accommodated in the case part 2100. 2310 is left and only the lead frame 2320 can be locked.

As such, the resin layer 2110 of the present invention fixes the plurality of LED elements 2300 electrically connected to the substrate 2200, preferably the lead frames 2320 of the plurality of LED elements 2300 to some extent. can do. Therefore, an effect capable of preventing deterioration in image quality and resolution caused by twisting the LED element 2300 electrically connected to the substrate 2200 at an angle different from that initially installed by receiving an external shock can be exhibited.

In addition, in one embodiment of the present invention, the area of the substrate portion 2200 is such that the resin layer 2110 can be formed only on the upper side of the substrate portion 2200 accommodated in the case portion 2100. The size of the area may be determined so that a gap does not occur between the inner side surface of the case part 2100 and the side surface of the substrate part 2200 while being accommodated in the 2100 . Accordingly, even when resin is injected into the upper side of the substrate portion 2200 accommodated in the case portion 2100, the injected resin is prevented from flowing into the lower side of the substrate portion 2200.

5 schematically shows an LED device 2300 according to an embodiment of the present invention.

As shown in FIG. 5, the LED device 2300 includes a plurality of lead frames 2320 arranged in a line to control a plurality of predetermined colors that can be emitted from the LED device 2300. And, at a predetermined position of each of the lead frames 2320 arranged at both ends of the plurality of lead frames 2320 arranged in a row, a stopper A having a width wider than the line width of the corresponding lead frame 2320 is formed It can be.

Specifically, (A) of FIG. 5 schematically shows the internal structure of the LED element 2300. As shown in (A) of FIG. 5, the LED device 2300 includes a plurality of lead frames 2320, preferably four lead frames 2320, and an upper part of the plurality of lead frames 2320. is fixed to the inside of the lens unit 2310.

On the other hand, the first, second and fourth lead frames 2320 from the left among the plurality of lead frames 2320 transmit electrical signals for controlling assigned colors to the LED light emitting chip. More specifically, the first lead frame 2320 transfers an electrical signal for controlling green, the second lead frame 2320 transfers an electrical signal for controlling blue, and the fourth lead frame 2320 controls red. An electrical signal may be transmitted to

The third lead frame 2320 corresponds to a common electrode, and on the upper side of the third lead frame 2320 are a plurality of LED light emitting chips, more specifically, a red light emitting LED light emitting chip, a green light emitting LED light emitting chip, and a blue light emitting chip. LED light emitting chips are disposed, and each LED light emitting chip and another lead frame 2320 that transmits an electrical signal for a corresponding color are connected by wires.

Meanwhile, the lens unit 2310 to which upper portions of the plurality of lead frames 2320 are fixed is formed by molding with an epoxy molding compound (EMC). The upper part of the 2320 is inserted, and the lens unit 2310 may be formed by injecting an epoxy molding compound into the molding frame and hardening the mold.

In addition, as shown in (B) of FIG. 5, the plurality of lead frames 2320 included in the LED device 2300 are arranged in a line, and one or more of the plurality of lead frames 2320 arranged in a line The lead frame 2320, more specifically, stoppers ( A) is formed.

The width of the stopper (A) is wider than the line width (thickness) of the lead frame 2320, and preferably may be formed wider than the width of the hole of the substrate portion 2200 through which the corresponding lead frame 2320 passes. The stopper (A) allows the lead frame 2320 to be inserted into the hole of the substrate 2200 only to a certain depth, and through this, the plurality of LED elements 2300 electrically connected to the substrate 2200 are uniform. to be placed at one height.

In addition, the above-described height (thickness) of the resin layer 2110 may correspond to the height of the lead frame 2320 fixed by the stopper A between the base unit 2200 and the lens unit 2310 .

On the other hand, in the lens unit 2310 of the LED device 2300, a portion of the upper side of the plurality of lead frames 2320 is accommodated, and the upper side of one or more lead frames 2320 accommodated in the lens unit 2310. Concavo-convex portions B may be formed at some predetermined locations.

Specifically, an upper portion of one or more lead frames 2320 among the plurality of lead frames 2320, ie, an upper portion fixed to the lens unit 2310, has irregularities B formed at predetermined positions. More specifically, uneven portions B are formed on upper portions of two lead frames 2320 (first and fourth lead frames) arranged at both ends among the plurality of lead frames 2320 .

As such, the irregularities B formed on the lead frame 2320 at both ends prevent the lead frame 2320 fixed in the lens unit 2310 formed by hardening the epoxy molding compound (EMC) from easily coming out of the lens unit 2310. that can be prevented

6 schematically illustrates a part of a plan view and a front view of a cover unit 2400 according to an embodiment of the present invention.

As shown in FIG. 6 , in the covering portion 2420, an area in contact with the upper side of the plurality of through-holes 2410 is curved corresponding to the upper side of the through-hole 2410 in contact, and the plurality of curved areas A groove D may be formed between them.

Specifically, FIG. 6(A) schematically shows a part of a plan view of the cover part 2400 . As shown in (A) of FIG. 2 and FIG. 6, a plurality of through holes 2410 are formed in a matrix form in the cover part 2400, and in (A) of FIG. 6, a plurality of through holes 2410 are formed horizontally. It shows a part of the cover part 2400 in which the through hole 2410 of is formed. As shown in (A) of FIG. 6, a shielding portion 2420 is formed at a position adjacent to the plurality of through holes 2410 formed horizontally, specifically, on the upper side of the plurality of through holes 2410, The length of the covering part 2420 may be the same as the width of the cover part 2400 .

Meanwhile, as shown in (B) of FIGS. 2 and 6 , the cover part 2420 is perpendicular to the direction in which the lens part 2310 is exposed through the through hole 2410, that is, the cover part 2400. It is formed in one direction and protects the light source emitting light from the plurality of LED elements 2300 exposed through the plurality of through holes 2410 located on the lower side of the corresponding shielding portion 2420 from external light sources, such as sunlight. . In other words, the covering part 2420 may play a role of preventing the visibility of light sources emitted from the plurality of LED elements 2300 from being deteriorated by sunlight.

In addition, a region of the shielding portion 2420 in contact with the through hole 2410 may be curved. As such, since the area of the shield 2420 in contact with the through hole 2410 is curved, the light source emitted from the lens unit 2310 exposed through the through hole 2410 can be more effectively protected from an external light source such as sunlight. effect can be exerted.

6(B) schematically shows a front view of the cover part 2400 . As shown in (B) of FIG. 6 , grooves D may be formed between the plurality of curved areas in the shielding portion 2420 formed on the cover portion 2400 . Specifically, the height of the region between the curved regions is lower than the height of the curved region in the shield 2420, so that a kind of groove D may be formed between the curved regions, and the region between the curved regions A separate groove may be additionally formed.

As shown in (B) of FIG. 6 , a groove D formed between the curved area of the shield 2420, that is, the area directly protecting the lens unit 2310 exposed through the through hole 2410 When wind blows on the cover part 2420 through ), since the wind escapes through the groove (D), the wind pressure applied to the cover part 2420 can be reduced, and ultimately the cover part ( 2420) can exert an effect of preventing damage.

In addition, through the groove (D), rainwater or external contaminants can escape downward through the groove (D) to prevent rainwater or contaminants from accumulating on the cover part 2420. Can exert an effect In addition, since the area directly protecting the lens unit 2310 is curved in the cover part 2420, when rainwater or contaminants fall on the corresponding area, both sides of the curved area, that is, grooves on both sides ( D) to allow for a more effective exit.

7 schematically illustrates a portion of a side view of a cover unit 2400 according to an embodiment of the present invention.

As shown in FIG. 7 , in the cover part 2400, first grooves C are formed between a plurality of through holes 2410 formed in the horizontal direction, and both sides of the through holes 2410 are formed. A plurality of second grooves E may be formed in a horizontal direction in an area partitioned by the formed first groove C and the shielding portion 2420 formed above and below the through hole 2410 .

Specifically, as shown in FIGS. 2, 6(A) and 7 , a plurality of second grooves E are formed on the upper surface of the cover part 2400 along the horizontal direction of the cover part 2400. there is.

More specifically, as shown in (A) of FIG. 6 , a plurality of first grooves C are formed on the upper surface of the cover part 2400 along the vertical direction of the cover part 2400 . On the other hand, in the area formed by the two adjacent first grooves C and the two adjacent shielding portions 2420 located between the two first grooves C, a plurality of A second groove E of may be formed. On the other hand, as shown in FIG. 7 , the second groove E may be understood to be formed as wedge-shaped shapes are continuously disposed on the upper surface of the cover part 2400 .

In one embodiment of the present invention, it can be understood that the first groove C is formed in a vertical direction between a plurality of through holes 2410 formed along a horizontal direction.

As such, in one embodiment of the present invention, the second groove E formed in the cover part 2400 is the lens part 2310 of the LED element 2300 exposed through the through hole 2410 of the cover part 2400. Among the light emitted through ), it is possible to improve the efficiency (light efficiency) of the light output from the LED element 2300 by reflecting the light irradiated toward the upper surface of the cover part 2400, and ultimately, the LED display board 2000 It can exert the effect of improving the brightness of

According to one embodiment of the present invention, since only the lens unit 2310 of the LED element 2300 is exposed to the outside according to the fastening of the case part 2100 and the cover part 2400, the LED element 2300 is protected from the outside. You can exert the effect you can.

According to an embodiment of the present invention, the LED device 2300 is protected from external contaminants by the shielding portion 2420 formed on the cover portion 2400, and at the same time, a light source output from the LED device 2300 from an external light source can exert a protective effect.

According to an embodiment of the present invention, a resin layer 2110 in which resin is injected and cured is included in a case in which the substrate 2200 to which the LED element 2300 is electrically connected is accommodated, so as to form the LED element 2300. At the same time as fixing, an effect of protecting the substrate portion 2200 can be exhibited.

According to one embodiment of the present invention, since stoppers A are formed in the lead frames 2320 arranged at both ends among the plurality of lead frames 2320 arranged in a row included in the LED device 2300, a plurality of An effect that the LED elements 2300 can be electrically connected to the substrate 2200 at a uniform height can be exhibited.

According to one embodiment of the present invention, the unevenness (B) is formed in one or more lead frames 2320 accommodated in the lens unit 2310 of the LED element 2300, so that the lead frame 2320 from the lens unit 2310 This separation can be prevented.

According to one embodiment of the present invention, since a groove is formed between the curved regions of the shielding portion 2420, it is possible to discharge external substances such as rainwater or to withstand wind pressure caused by strong wind. .

According to an embodiment of the present invention, since a plurality of second grooves E are formed on the upper surface of the cover part 2400, light output from the LED element 2300 is reflected to improve light efficiency. can exert

As described above, although the embodiments have been described with limited examples and drawings, those skilled in the art can make various modifications and variations from the above description. For example, the described techniques may be performed in an order different from the method described, and/or components of the described system, structure, device, circuit, etc. may be combined or combined in a different form than the method described, or other components may be used. Or even if it is replaced or substituted by equivalents, appropriate results can be achieved. Therefore, other implementations, other embodiments, and equivalents of the claims are within the scope of the following claims.

Claims (6)

As a high-resolution LED display board with improved durability and power efficiency,
A plurality of LED elements including a lens unit and emitting a color determined according to a control signal;
a substrate unit in which the plurality of LED elements are arranged in a matrix form at regular intervals and electrically connects the plurality of LED elements;
a case portion accommodating the substrate portion and having a predetermined height such that lens portions of the plurality of LEDs electrically connected to the substrate portion are exposed to the outside; and
A plurality of through holes fastened to the upper side of the case part and electrically connected to the substrate part accommodated in the case part are formed to expose the lens part of the plurality of LEDs to the outside, and the upper side of the plurality of through holes formed in each row direction. Including; a cover portion in which a shielding portion protruding in a direction perpendicular to the through hole is formed,
Inside the case portion in which the substrate portion is accommodated, a resin layer in which resin is injected and cured on the upper side of the substrate portion; is included,
The resin layer,
It has a predetermined thickness so that only the lens parts of the plurality of LEDs electrically connected to the substrate part accommodated in the case part are exposed to the outside of the internal space formed by the case part,
The covering part,
A plurality of through holes extend along a horizontally formed direction, an area in contact with upper sides of the plurality of through holes is curved correspondingly to an upper side of the through hole in contact, and a height of an area between the plurality of curved areas is the curved area. It is formed lower than the height of the area,
the cover part,
The LED display board, wherein a first groove is formed between the plurality of through holes formed in the horizontal direction along the vertical direction of the cover part.
delete The method of claim 1,
The LED device,
A plurality of lead frames arranged in a line to control a plurality of predetermined colors that can be emitted from the LED device;
A stopper having a width wider than the line width of the corresponding lead frame is formed at a predetermined position of each of the lead frames arranged at both ends of the plurality of lead frames arranged in a row.
The method of claim 3,
The lens part of the LED device,
Upper portions of the plurality of lead frames are accommodated,
An LED signboard, wherein a concavo-convex is formed at a predetermined position of an upper portion of one or more lead frames accommodated in the lens unit.
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