KR102586406B1 - Reflective array unit installed on the led array of an led sign that realizes an asymmetrical tilting light distribution area - Google Patents

Abstract

To provide a technology that can integrate an asymmetric tilting light distribution area into the LED array by allowing the reflective unit with an array structure integrated into multiple LED packages to be precisely and stably fixed to the LED array according to the application characteristics of the waterproof layer. , the reflection array unit installed in the LED array of the LED display board implementing an asymmetric tilting light distribution area according to an embodiment of the present invention is installed on the upper surface of the LED package to asymmetrically tilt the light distribution area of the light emitted from the LED package in one direction. a main body positioned to accommodate a plurality of reflection holes for reflecting and distributing light; It is formed integrally with the main body at the lower part of the main body, and at least contacts the area where the waterproof layer is applied among the LED array areas excluding the installation area of the LED package, and the bottom of the reflection hole of the main body accommodates the upper surface of the LED package and the main body A support leg portion whose bottom is spaced apart from the top of the LED array and supports the main body so that the main body is installed at a uniform height on the waterproof layer surrounding the LED package and the LED array; And a fixing part for fixing the main body, the support legs, and the LED array.

Description

Reflective array unit installed in the LED array of an LED signboard that implements an asymmetric tilting light distribution area {REFLECTIVE ARRAY UNIT INSTALLED ON THE LED ARRAY OF AN LED SIGN THAT REALIZES AN ASYMMETRICAL TILTING LIGHT DISTRIBUTION AREA}

The present invention is a technology for implementing a reflective structure installed in the LED array of an LED signboard to limit the light distribution area by asymmetrically tilting the light distribution area emitted from the LED package downward, specifically, to prevent light pollution and In order to save power, the light distribution area of the LED package is implemented with downward asymmetric tilting, and multiple reflective structures can be installed as one in the LED array where multiple LED packages are arranged. At the same time, when installing the reflective structures, they are applied to the LED array. This relates to a reflective array unit that allows the reflective structure to be stably installed at a uniform height, taking into account the waterproof layer.

LED (light-emitting diode) is a light-emitting device that converts electrical energy into light energy. An LED chip is generally mounted on an LED array corresponding to a substrate or lead frame, and the top of the chip is covered with a dome-shaped lens, etc. A light emitting device package is used. Accordingly, the chip can be protected from contaminants or impacts, and light extraction efficiency can be improved by minimizing the forward radiation of light by the lens.

The light distribution area of the light generated from this general LED package is implemented as an omni-directional light distribution area of about 120 degrees, and there is a problem that the beam angle is too wide. In particular, images, etc. are transmitted through an LED array with multiple LED packages installed. In LED display boards, VMS (road signage), etc., excessively bright light is irradiated to unwanted areas, causing so-called light pollution. In particular, such light pollution occurs severely in densely populated areas such as buildings where many electronic signboards are installed. At the same time, there is a problem that a lot of power consumption is inevitable in order to obtain the desired luminance due to such a wide beam angle.

Accordingly, technologies are being developed to concentrate light into a certain light distribution area through various methods of controlling the LED light distribution area, prevent light pollution, and save power to obtain the same luminance. In particular, this technology requires an asymmetric tilting technology to focus the light distribution area downward.

This technology, for example, in Korean Patent Application No. 10-2019-0069337, is a technology related to a lens for controlling light in a specific direction, and is symmetrical through a reflective structure installed adjacent to a light emitting device chip or package. A technology to implement asymmetric tilting of the light distribution area is presented.

However, these technologies can be applied to a single LED package, so in order to apply them to an electronic sign or VMS that includes an LED array with multiple LED packages installed, each reflective structure must be installed one by one, which raises the issue of severe reduction in efficiency in manufacturing.

In addition, in LED display devices installed outdoors, a waterproof layer is applied to the LED array. The waterproof layer applied to the LED array inevitably has different thicknesses at the location where the LED package is installed and at other locations where the LED package is not installed. It has no choice but to be applied, but there is a problem that the problem of installing the reflective structure caused by the application of such a waterproof layer is not solved at all.

The present invention was developed to completely solve the above problems, and allows installation of a reflection unit with an integrated array structure in multiple LED packages, greatly increasing manufacturing efficiency in implementing an asymmetric tilting light distribution area. The purpose is to provide technology that can reduce cost and manufacturing time, and in particular, to provide technology that allows the reflective unit to be precisely and stably fixed to the LED array regardless of the applied thickness of the waterproof layer.

In order to achieve the above object, the reflection array unit installed in the LED array of the LED signboard implementing the asymmetric tilting light distribution area according to an embodiment of the present invention asymmetrically tilts the light distribution area of the light emitted from the LED package in one direction. a main body positioned to accommodate the upper surface of the LED package and penetrated with a plurality of reflection holes for reflecting and distributing light; It is formed integrally with the main body at the lower part of the main body, and is in contact with at least an area where the waterproof layer is applied among the LED array areas excluding the installation area of the LED package, and the bottom of the reflection hole of the main body touches the upper surface of the LED package. Support legs that support the main body while receiving it so that the bottom of the main body is spaced apart from the upper surface of the LED array so that the main body is installed at a uniform height on the waterproof layer surrounding the LED package and the LED array; and a fixing part for fixing the main body, the support leg part, and the LED array.

A plurality of the support legs may be formed in a grid shape in an area surrounding the reflection hole and the LED package.

The support leg portion may be formed discontinuously along the longitudinal direction of the support leg portion.

A portion of the support leg portion may be formed at the outermost part of the main body and installed at the outermost boundary area of the LED array.

The fixing part is a bolt that is inserted while passing through the main body through a threaded through hole formed in the main body and is coupled to the LED array. The fixing part is formed in plural numbers radially around the central axis of the LED array. It is possible to become

The height of the support leg portion may be the average distance between the top surface of the LED package and the top surface of the waterproof layer in the area where the waterproof layer is applied in the LED array area excluding the installation area of the LED package.

The fixing part may be an adhesive layer that adheres the bottom of the support leg and the top of the waterproof layer of the LED array.

The support leg portion has a width that increases as the shape of the side increases from the lowest surface to the top, but the outer surface has a convex shape to match the application form of the waterproof layer applied to the side of the LED package and the upper surface of the LED array. It is possible.

According to the present invention, it is possible to implement an asymmetric tilting light distribution area for all LED packages through the installation of a main body with a plurality of reflection holes formed integrally with the LED array including the LED array. At this time, due to the planar shape of the main body, the problem of having to fix the main body at the correct height to the LED array due to non-uniformity in the thickness of the waterproof layer applied to the upper surface of the LED array can be realized by the support legs.

In other words, the plate-shaped main body is fixed at the same height so that the top surface of the LED package is exactly included in the bottom of the reflection hole by the waterproof layer, which is inevitably applied in a round manner from the side of the LED package to the upper surface of the LED array in the area where the LED package is not installed. The problem that must be solved is that the main body itself is spaced at the same height so that the upper surface of the LED package is accurately included in the bottom of the reflection hole by the support legs, and is precisely contacted with the upper surface of the LED array on which the waterproof layer is applied to the support legs. The fixed height of the main body can be implemented the same in all areas, and the fixing force can be implemented stably.

Accordingly, an asymmetric tilting light distribution area can be implemented through a very simple process, which has the effect of preventing light pollution and reducing power consumption in indoor and outdoor LED display devices.

Figure 1 is a partial perspective view illustrating the structure of a reflective array unit installed in the LED array of an LED signboard implementing an asymmetric tilting light distribution area according to an embodiment of the present invention.
Figure 2 is a partial side cross-sectional view illustrating the structure of a reflective array unit installed in the LED array of an LED signboard implementing an asymmetric tilting light distribution area according to an embodiment of the present invention.
3 and 4 are views for explaining the formation of support legs according to another embodiment of the present invention.
Figure 5 is a diagram for explaining conditions for the height of support legs according to each embodiment of the present invention.
Figure 6 is a view for explaining the side shape of a support leg portion according to another embodiment of the present invention.

BRIEF DESCRIPTION OF THE DRAWINGS Various embodiments and/or aspects are now disclosed with reference to the drawings. In the following description, for purposes of explanation, numerous specific details are set forth to facilitate a general understanding of one or more aspects. However, it will also be appreciated by those skilled in the art that this aspect(s) may be practiced without these specific details. The following description and accompanying drawings set forth in detail certain example aspects of one or more aspects. However, these aspects are illustrative and some of the various methods in the principles of the various aspects may be utilized, and the written description is intended to encompass all such aspects and their equivalents.

As used herein, “embodiment,” “example,” “aspect,” “example,” etc. may not be construed to mean that any aspect or design described is better or advantageous than other aspects or designs. .

Additionally, the terms "comprise" and/or "comprising" mean that the feature and/or element is present, but exclude the presence or addition of one or more other features, elements and/or groups thereof. It should be understood as not doing so.

Additionally, terms containing ordinal numbers, such as first, second, etc., may be used to describe various components, but the components are not limited by the terms. The above terms are used only for the purpose of distinguishing one component from another. For example, a first component may be referred to as a second component, and similarly, the second component may be referred to as a first component without departing from the scope of the present invention. The term and/or includes any of a plurality of related stated items or a combination of a plurality of related stated items.

In addition, in the embodiments of the present invention, unless otherwise defined, all terms used herein, including technical or scientific terms, are as commonly understood by a person of ordinary skill in the technical field to which the present invention pertains. It has the same meaning. Terms defined in commonly used dictionaries should be interpreted as having a meaning consistent with the meaning in the context of the related technology, and unless clearly defined in the embodiments of the present invention, have an ideal or excessively formal meaning. It is not interpreted as

Meanwhile, in the following description, some of the elements depicted in the drawings are omitted or excessively enlarged or reduced in order to explain the function of each element of the present invention, but the relevant drawings do not explain the technical features and rights of the present invention. It would be natural to understand that the scope is not limited.

FIG. 1 is a partial perspective view illustrating the structure of a reflective array unit installed in the LED array of an LED display board implementing an asymmetric tilting light distribution area according to an embodiment of the present invention, and FIG. 2 is an asymmetric view according to an embodiment of the present invention. Some side cross-sectional views for explaining the structure of a reflective array unit installed in the LED array of an LED display board implementing a tilting light distribution area, and FIGS. 3 and 4 are diagrams for explaining the formation of a support leg portion according to another embodiment of the present invention. , FIG. 5 is a diagram for explaining conditions for the height of the support legs according to each embodiment of the present invention, and FIG. 6 is a diagram for explaining the side shape of the support legs according to another embodiment of the present invention. Additionally, in the following description, multiple drawings will be simultaneously referred to and described in order to explain components constituting one technical feature or invention.

When described with reference to the above drawings, the reflection array unit 10 (hereinafter referred to as the 'unit of the present invention') installed in the LED array of the LED signboard implementing an asymmetric tilting light distribution area according to an embodiment of the present invention is, It is characterized in that it includes a main body 11, a support leg portion 13, and a fixing portion 14.

The unit 10 of the present invention is installed in the LED array 1 and has the function of controlling the light distribution area of the light emitted from the LED package 2 by asymmetric tilting, protecting the LED package 2 from the outside, or It can perform various functions to prevent water from entering the LED package. In the following description, the asymmetric tilting function for the light distribution area will be mainly explained, but it will be understood as naturally performing the above-described auxiliary function.

In the present invention, the LED package 2 is inserted into the LED array 1 and receives power through a power supply line configured in the LED array 1 to emit light. At this time, the LED package 2 can be understood to include a general LED package product that includes an LED chip and a symmetrical lens that provides a wide light distribution area of 120 degrees forward.

The main body 11 is positioned to accommodate the upper surface of the LED package 2 in order to asymmetrically tilt the light distribution area of the light emitted from the LED package 2 in one direction, and has a plurality of reflection holes 12 for reflecting and distributing light. ) refers to the component corresponding to the structure of the unit 10 of the present invention through which it is pierced.

In the present invention, the installation height of the reflection hole 12 may be set so that its bottom opening completely matches the top surface of the LED package 2 as shown in the drawings or accommodates the top surface in a partial height direction. At this time, the above-mentioned installation height refers to the separation distance from the LED array 1 of the main body 11, which will be described later.

The reflection hole 12 is schematically shown in the present invention, but in order to implement an asymmetric tilting light distribution area, the axis formed by the center of the bottom circular opening and the center of the upper circular opening is not perpendicular to the planar shape of the main body 11. The shape of the hole can be implemented so that it is inclined toward the tilting direction to be controlled.

In the present invention, a reflective layer is formed on the side of the reflective hole 12 to reflect light, and the main body 11 may be made of a reflective layer or other materials. A plurality of reflection holes 12 may be processed in batches or sequentially through a penetrating process with respect to the main body 11. Additionally, the reflection hole 12 may have a certain roughness or may be configured to have no roughness. The bottom opening of the reflection hole 12 is implemented in the same shape as the upper area of the LED package 2, and can be precisely processed to prevent light emitted from the LED package 2 from escaping through the gap during installation. In addition, the reflection holes 12 may be formed as a plurality of grid areas as shown in the drawings to correspond to the arrangement of the LED packages 2 arranged in an N x M shaped grid area installed in the LED array 1. .

In addition, depending on the area set by asymmetric tilting of the light distribution area, the height of the main body 11, the diameter of the bottom and top areas of the reflection hole 12, and their ratio, etc. may be set, respectively. This can also be expected to achieve the desired light distribution area specification by implementing the main body 11 differently even for the same LED array 1 and LED package 2.

The support leg portion 13 is formed integrally with the main body 11 at the lower portion of the main body 11, and is provided with the waterproof layer 100 on at least the LED array area excluding the installation area of the LED package 2. While contacting the area, the bottom of the reflection hole 12 of the main body 11 accommodates the top of the LED package 2, and the bottom of the main body 11 is spaced from the LED array, that is, the top of the LED array 1, A component that refers to a structure that supports the main body 11 so that the main body 11 is installed at a uniform height on the waterproof layer 100 surrounding the four sides of the LED package 2 and the LED array, that is, the LED array 1. am.

The support leg portion 13 is a key component of the present invention and maintains the main body 11 uniformly despite the condition of the upper surface of the LED array 1, which does not have a uniform height due to the waterproof layer 100. It is a component that is stably supported on the LED array (1) with a structure spaced at one height (h).

As shown in FIGS. 2 and 5, the height (h) of the support leg portion 13 is preferably equal to that of the LED array ( In the state of being applied to the upper part of 1), the bottom of the main body 11, that is, the bottom of the reflection hole 12, is configured to a height that matches the top of the LED package 2 or partially accommodates it. In addition, for the above-mentioned purpose, the support leg portion 13 is an area corresponding to the area between the areas excluding the area where the LED package 2 is installed, and is preferably formed in the middle area between the areas where the reflection hole 12 is formed. do.

At this time, h is the top surface of the LED package 2, as shown in Figures 2 and 5, and the waterproof layer in the area where the waterproof layer 100 is applied among the areas of the LED array 1 excluding the installation area of the LED package 2. It can be expressed as the average spacing of the upper surface of (100).

In addition, the support leg portion 13 is formed on the outermost part of the main body 11 as shown in FIG. 1, etc., and includes a portion of the support leg portion 131 installed in the outermost boundary area of the LED array 1, The remaining part of the support leg portion 132 formed between the above-described reflection holes 12 may be classified according to its installation location.

At this time, as the support leg portion 13, a plurality of support leg portions 132 corresponding to 132 are formed in a grid shape in the area surrounding the reflection hole 12 and the LED package 2, so that the main The body 11 can be supported.

Meanwhile, in the present invention, in order to maximize the emission effect on heat generated by light emission from the LED package 2, the support leg portion 13 has a length of the support leg portion 13 as shown in FIGS. 3 and 4. It can be formed discontinuously along a direction. At this time, in order to stably fix the main body 11 and protect the LED package 2 from the outside, the discontinuous pattern of the support leg portion 131 is almost absent as shown in Figures 3 and 4, and in between, that is, The support leg portion 132 may be implemented with more discontinuous patterns.

Meanwhile, when fixing the main body 11, the support leg portion 13 must support the main body 11 so that it is spaced apart from the upper surface of the LED array 1 by a certain height h as described above. It is necessary to ensure maximum stability.

For the above purpose, the following issues arise. That is, as shown in FIG. 6, when performing the process of applying the waterproofing layer 100, the waterproofing layer 11 is inevitably applied to the side of the LED package 2, and is applied to other areas while drawing a curved surface. At the same time, the shape of the opening at the bottom of the reflection hole 12 must be the same as the top surface of the LED package 2.

Accordingly, as described above, the support leg portion 13 is formed between the forming areas of the reflection hole 12 at a constant height h to support the main body 11. In order to maximize its stability, As shown in FIG. 6, the shape of the support leg portion 13 can be implemented.

That is, as shown in FIG. 6, the side shape of the support leg portion 13 becomes wider as it moves from the lowest surface to the top, but the outer surface has a convex shape 133, so that the LED package 2 It can be implemented to match the application form of the waterproof layer 100 applied along the side surface and the top surface of the LED array 1. In other words, since the waterproof layer 100 will form a concave curved surface on the side of the LED package 2 by application, it has a convex side shape 133 to correspond to this, and its width can be increased, further increasing the holding power. It can be implemented to provide stable service.

Meanwhile, for example, although not shown in the drawing, the fixing part may be implemented as an adhesive layer that adheres the bottom of the support leg portion 13 and the upper surface of the waterproof layer of the LED array 1. In this case, in order to prevent complexity in the process, In addition to the adhesive layer, it may be implemented to have a bolt structure as shown in FIG. 2.

That is, in one embodiment of the present invention, the fixing part performs the function of fixing the main body 11, the support leg portion 13, and the LED array 1, because the fixing function cannot be accurately performed with the adhesive layer alone. am.

To this end, as shown in Figures 2 and 4, in the present invention, the fixing part is inserted while passing through the main body 11 along the threaded through holes 15 and 141 formed in the main body 11, It can be implemented as a bolt 14 coupled to a through hole formed with a thread formed in the LED array 1.

At this time, as shown in FIG. 4, the fixing portion by combining the through holes 15 and 141 and the bolt 14 is formed radially in plural numbers with respect to the central axis, that is, the center, of the LED array 1. , and can be formed in many other areas. Through this, the main body 11 can be fixed to the LED array 1 more stably and at the same height.

According to the present invention as described above, it is possible to implement an asymmetric tilting light distribution area for all LED packages through the installation of a main body with a plurality of reflection holes formed integrally with the LED array including the LED array. At this time, due to the planar shape of the main body, the problem of having to fix the main body at the correct height to the LED array due to non-uniformity in the thickness of the waterproof layer applied to the upper surface of the LED array can be realized by the support legs.

In other words, the plate-shaped main body is fixed at the same height so that the top surface of the LED package is exactly included in the bottom of the reflection hole by the waterproof layer, which is inevitably applied in a round manner from the side of the LED package to the upper surface of the LED array in the area where the LED package is not installed. The problem that must be solved is that the main body itself is spaced at the same height so that the upper surface of the LED package is accurately included in the bottom of the reflection hole by the support legs, and is precisely contacted with the upper surface of the LED array on which the waterproof layer is applied to the support legs. The fixed height of the main body can be implemented the same in all areas, and the fixing force can be implemented stably.

Accordingly, an asymmetric tilting light distribution area can be implemented through a very simple process, which has the effect of preventing light pollution and reducing power consumption in indoor and outdoor LED display devices.

As described above, although the embodiments have been described with limited examples and drawings, those skilled in the art will understand that various modifications and variations can be made from the above description. Terms such as “include,” “comprise,” or “have” described above mean that components that are not specifically stated to the contrary may be included, and therefore do not exclude other components, but rather include other components. It should be interpreted to include more. In addition, the scope of protection of the present invention should be interpreted in accordance with the claims below, and all technical ideas within the equivalent scope should be construed as being included in the scope of rights of the present invention.

Claims (8)

It is positioned to accommodate the upper surface of the LED package in order to asymmetrically tilt the light distribution area emitted from the LED package in one direction, and the penetrating side includes a plurality of reflection holes in which a reflective layer is formed on the surface for reflection of light, A main body in the shape of a plate with flat surfaces on both sides and through which the reflective layer is formed;
It is formed integrally with the main body to protrude from the flat bottom of the main body, and is in contact with at least one area where the waterproof layer is applied in the LED array area excluding the installation area of the LED package, so that the bottom of the reflection hole of the main body is exposed to the LED package. A support leg portion that supports the main body so that the bottom of the main body is spaced apart from the upper surface of the LED array while accommodating the upper surface of the main body so that the main body is installed at a uniform height on the waterproof layer surrounding the LED package and the LED array. ; and
A reflective array unit installed in the LED array of an LED signboard implementing an asymmetric tilting light distribution area, comprising: the main body, the support legs, and a fixing part for fixing the LED array.
According to paragraph 1,
The support legs,
A reflection array unit installed in the LED array of an LED signboard implementing an asymmetric tilting light distribution area, characterized in that a plurality of units are formed in a grid shape in the area surrounding the reflection hole and the LED package.
According to paragraph 2,
The support legs,
A reflective array unit installed in the LED array of an LED signboard that implements an asymmetric tilting light distribution area that is formed discontinuously along the longitudinal direction of the support leg.
According to paragraph 1,
Some of the support legs are,
A reflection array unit installed in the LED array of an LED display board that implements an asymmetric tilting light distribution area, characterized in that it is formed on the outermost part of the main body and installed in the outermost boundary area of the LED array.
According to paragraph 1,
The fixing part,
A bolt is inserted while passing through the main body through a threaded through hole formed in the main body and coupled to the LED array, wherein the fixing portion is formed in a plurality radially around the central axis of the LED array. A reflective array unit installed in the LED array of an LED signboard that implements an asymmetric tilting light distribution area.
According to paragraph 1,
The height of the support leg portion is,
Installed on the LED array of an LED display board that implements an asymmetric tilting light distribution area, characterized in that the average gap between the top surface of the LED package and the upper surface of the waterproof layer in the area where the waterproof layer is applied among the LED array areas excluding the installation area of the LED package. A reflective array unit.
According to paragraph 1,
The fixing part,
A reflective array unit installed in the LED array of an LED display board that implements an asymmetric tilting light distribution area, characterized in that it is an adhesive layer that bonds the bottom of the support leg and the upper surface of the waterproof layer of the LED array.
According to paragraph 1,
The support legs,
The shape of the side becomes wider as it goes from the lowest surface to the top, but the outer surface has a convex shape to match the application form of the waterproof layer applied to the side of the LED package and the upper surface of the LED array. A reflective array unit installed in the LED array of an LED signboard that implements an asymmetric tilting light distribution area.