KR100227707B1 - Outdoor led display board - Google Patents

Outdoor led display board Download PDF

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Publication number
KR100227707B1
KR100227707B1 KR1019970054859A KR19970054859A KR100227707B1 KR 100227707 B1 KR100227707 B1 KR 100227707B1 KR 1019970054859 A KR1019970054859 A KR 1019970054859A KR 19970054859 A KR19970054859 A KR 19970054859A KR 100227707 B1 KR100227707 B1 KR 100227707B1
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South Korea
Prior art keywords
led
board
driving
display board
led board
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KR1019970054859A
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Korean (ko)
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KR19990033492A (en
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김재을
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김재을
주식회사대한전광
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    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
    • G09F13/00—Illuminated signs; Luminous advertising
    • G09F13/20—Illuminated signs; Luminous advertising with luminescent surfaces or parts
    • G09F13/22—Illuminated signs; Luminous advertising with luminescent surfaces or parts electroluminescent
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V19/00—Fastening of light sources or lamp holders
    • F21V19/001—Fastening of light sources or lamp holders the light sources being semiconductors devices, e.g. LEDs
    • F21V19/003—Fastening of light source holders, e.g. of circuit boards or substrates holding light sources
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
    • G09F9/00—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements
    • G09F9/30—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements in which the desired character or characters are formed by combining individual elements
    • G09F9/33—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements in which the desired character or characters are formed by combining individual elements being semiconductor devices, e.g. diodes
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO THE FORM OR THE KIND OF THE LIGHT SOURCES OR OF THE COLOUR OF THE LIGHT EMITTED
    • F21Y2115/00—Light-generating elements of semiconductor light sources
    • F21Y2115/10—Light-emitting diodes [LED]
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
    • G09F13/00—Illuminated signs; Luminous advertising
    • G09F13/20—Illuminated signs; Luminous advertising with luminescent surfaces or parts
    • G09F13/22—Illuminated signs; Luminous advertising with luminescent surfaces or parts electroluminescent
    • G09F2013/222—Illuminated signs; Luminous advertising with luminescent surfaces or parts electroluminescent with LEDs

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Theoretical Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Devices For Indicating Variable Information By Combining Individual Elements (AREA)
  • Led Device Packages (AREA)

Abstract

옥외용 엘이디 전광판으로서, LED 보드와 구동 보드를 일체로 함으로써 조립성, 유지보수성을 개선하고 크기를 줄이기 위해서, 발광소자를 평면적으로 배열한 LED 보드와, 상기 발광소자를 스태틱 방식으로 구동하기 위한 구동소자와, 상기 LED 보드를 앞쪽에서 유지시켜주는 전면틀과, 상기 LED 보드를 뒤쪽에서 유지시켜주는 후면틀을 구비하며, 상기 구동소자들은 상기 LED 보드의 납땜면 쪽에서 소켓을 통해 연결되는 것을 특징으로 한다.An outdoor LED display board, which integrates an LED board and a driving board to improve assembly and maintenance and reduce size, an LED board in which light emitting devices are arranged in a planar manner, and a driving device for driving the light emitting devices in a static manner. And a front frame for holding the LED board at the front and a rear frame for holding the LED board at the rear, wherein the driving elements are connected through a socket at a soldering side of the LED board. .

Description

옥외용 엘이디 전광판Outdoor LED Display Board

본 발명은 옥외용 엘이디(LED) 전광판에 관한 것으로서, 특히 LED 보드와 구동 보드를 일체로 함으로써 조립성, 유지보수성을 개선하고 크기와 무게를 줄인 옥외용 LED 전광판에 관한 것이다.BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an outdoor LED display board, and more particularly, to an outdoor LED display board which is improved in assembly and maintainability and reduced in size and weight by integrating an LED board and a driving board.

LED의 구동방식에는 스태틱 구동 방식과 다이나믹 구동 방식이 있다. 스태틱 구동방식은 각 LED마다 하나의 구동소자를 연결하여 해당 LED를 켜고자 하는 경우에는 해당 구동소자에서 연속적으로 전류를 흘려주는 방식이며, 다이나믹 구동방식은 LED를 매트릭스 모양으로 배열하였을 때 그 가로변과 세로변에 해당하는 부분에 구동소자를 연결한 다음, 해당 LED를 켜고자 하는 경우에는 그 LED와 만나는 가로변 구동소자와 세로변 구동소자를 인에이블시키는 것이다. 다만, 하나의 구동소자에는 여러개의 LED가 연결되어 있으므로, 하나의 LED에 대해서 연속적으로 전류를 흘려주는 것이 아니라, 각 구동소자를 각 LED에 대해서 일정 시간만큼씩 할당하여, 해당되는 시간슬롯에서 온 또는 오프하도록 한다. 따라서, 다이나믹 방식의 경우에는 스태틱 방식과 같은 휘도를 내기 위해서는 스태틱 방식에 비해 더 많은 전류를 흘려주어야 하지만, 모든 LED에 대해서 구동소자를 마련할 필요가 없으므로 필요한 구동소자의 수가 감소된다고 하는 장점이 있다.There are two types of LED driving methods: static driving and dynamic driving. Static driving method is to connect one driving device to each LED and to turn on the LED, the current is continuously flowed from the driving device, and the dynamic driving method is when the LEDs are arranged in a matrix shape. When the driving device is connected to a portion corresponding to the vertical side, and the LED is to be turned on, the horizontal side driving device and the vertical side driving device which meet the LED are enabled. However, since several LEDs are connected to one driving device, instead of continuously flowing current for one LED, each driving device is allocated to each LED for a predetermined time, and the corresponding time slot is turned on. Or off. Therefore, in the dynamic method, in order to achieve the same brightness as the static method, more current must be flowed than the static method, but there is an advantage that the number of required driving devices is reduced because it is not necessary to provide driving devices for all LEDs. .

옥외용 LED 전광판은, 도 4에 도시한 것처럼, LED가 배열된 LED 보드(1)와, 이들 LED를 구동하기 위한 LED 구동보드(2), 그리고 이 두 보드를 수용하기 위한 전면틀(3) 및 후면틀(4)을 구비한다. 그런데, LED 구동보드(2)를 별도로 마련하는 이유는, LED 보드(1)의 앞면은 LED(5)가 가득 채우고 있으며 그 뒷면은 LED의 납땜부위로 덮여 있기 때문에 그 사이에 LED 구동소자(6)를 배치하기가 어렵기 때문이었다. 따라서, 별도의 LED 구동보드(2)를 마련하고, 이들 두 보드 사이를 커넥터(7)를 사용하여 전기적으로 연결하고 있다. 그런데, LED 구동방식을 전술한 스태틱 방식으로 하는 경우에는 모든 LED(5)에 대해서 구동소자(6)와 일대일로 연결해야 하므로 연결에 필요한 커넥터(7)의 수가 현저히 증가하게 된다. LED 구동보드(2)를 별도로 마련한 이유가 LED 보드(1)에 여유공간이 없어서인데, LED 구동보드(2)를 별도로 마련하면서 그와 유사한 공간을 차지할 만큼의 커넥터(7)를 마련해야 한다는 것은 현실성이 없는 일이다. 따라서, 이러한 점 때문에 종래의 옥외용 LED 전광판은 다이나믹 방식으로 구동하도록 설계되어 있었다.As shown in FIG. 4, the outdoor LED display board includes an LED board 1 on which LEDs are arranged, an LED drive board 2 for driving these LEDs, and a front frame 3 for accommodating these two boards; The rear frame 4 is provided. However, the reason for providing the LED driving board 2 separately is that the front of the LED board 1 is filled with the LED (5) and the back is covered with the soldering portion of the LED, the LED driving device (6) in between. ) Because it is difficult to deploy. Therefore, a separate LED drive board 2 is provided, and the two boards are electrically connected by using the connector 7. However, when the LED driving method is the static method described above, all the LEDs 5 need to be connected to the driving device 6 in a one-to-one manner, thereby increasing the number of connectors 7 necessary for connection. The reason why the LED drive board 2 is separately provided is that there is no free space in the LED board 1, but it is necessary to provide a connector 7 to occupy a similar space while providing the LED drive board 2 separately. This is not happening. Therefore, for this reason, the conventional outdoor LED display board is designed to be driven in a dynamic manner.

그런데, 종래의 옥외용 LED 전광판은 LED 보드(1)와 LED 구동보드(2)가 별도로 마련되고, 도 3에 도시한 것처럼 LED 보드(1)의 뒷면에서 LED 구동보드(2)가 장착되도록 되어 있으므로, 각 보드 내에서 일부 소자에 고장이 발생한 경우에 LED 구동보드(2)를 분리한 다음 고장 부위를 찾거나 소자를 교체하여야 하므로, 유지보수가 매우 번거롭고 시간이 많이 걸린다는 단점이 있다.However, in the conventional outdoor LED display board, the LED board 1 and the LED driving board 2 are separately provided, and as shown in FIG. 3, the LED driving board 2 is mounted on the rear surface of the LED board 1. In the case where a failure occurs in some devices in each board, the LED drive board 2 must be separated, and then a failure site or a device must be replaced. Therefore, maintenance is very troublesome and time-consuming.

또한, LED 보드(1)와 LED 구동보드(2)를 별도로 마련해야 하므로 전광판의 두께가 커지고 무거워지기 때문에 조립 및 설치가 번거롭고 자리를 많이 차지한다는 단점이 있다.In addition, since the LED board 1 and the LED driving board 2 must be separately provided, the thickness of the electronic display board becomes large and heavy, so that the assembly and installation are cumbersome and take up a lot of space.

또한, 옥외용 전광판의 경우에는 태양빛 아래에서 사용하여야 하므로 LED의 휘도가 매우 중요한데, 다이나믹 방식을 사용하므로 원하는 휘도를 얻기가 어렵다는 단점이 있다.In addition, in the case of an outdoor billboard, the brightness of the LED is very important because it must be used under sunlight, and it is difficult to obtain a desired brightness because the dynamic method is used.

본 발명은 이러한 점을 감안하여 이루어진 것으로서, 유지보수가 간단히 이루어질 수 있는 옥외용 LED 전광판을 제공하는 것을 목적으로 한다.The present invention has been made in view of such a point, and an object of the present invention is to provide an outdoor LED display board that can be easily maintained.

본 발명의 다른 목적은 무게가 가볍고 두께가 얇은 전광판을 제공하는 것이다.Another object of the present invention is to provide a light weight plate that is light in weight and thin.

본 발명의 또 다른 목적은 스태틱 방식으로 구동함으로써 충분한 휘도를 얻을 수 있는 전광판을 제공하는 것이다.It is still another object of the present invention to provide an electric display plate which can obtain sufficient luminance by driving in a static manner.

도 1은 본 발명의 옥외용 엘이디 전광판의 분해 사시도이다.1 is an exploded perspective view of the outdoor LED display board of the present invention.

도 2는 본 발명의 옥외용 엘이디의 외관도로서, (a)는 정면도, (b)는 측면도, (c)는 후면도, (d)는 상면도이다.2 is an external view of the outdoor LED of the present invention, (a) is a front view, (b) is a side view, (c) is a rear view, (d) is a top view.

도 3은 본 발명의 옥외용 엘이디 전광판에서 사용되는 구동소자 연결용 소켓의 외관도로서, (a)는 상면도, (b)는 좌측면도, (c)는 하측면도이다.3 is an external view of a driving device connecting socket used in the outdoor LED display board of the present invention, (a) is a top view, (b) is a left side view, (c) is a bottom side view.

도 4는 종래의 옥외용 엘이디 전광판의 분해 사시도이다.4 is an exploded perspective view of a conventional outdoor LED display board.

< 도면의 주요부분에 대한 부호의 설명 ><Description of Symbols for Major Parts of Drawings>

1 LED 보드, 2 LED 구동보드,1 LED board, 2 LED drive board,

3 전면틀, 4 후면틀,3 front frames, 4 rear frames,

5 LED, 6 LED 구동소자,5 LED, 6 LED drive element,

7 커넥터, 8 IC 소켓,7 connectors, 8 IC sockets,

9 간막이, 10 IC 수용부,9 partitions, 10 IC receptacles,

11 IC 단자 접촉부, 12 소켓 지지부,11 IC terminal contacts, 12 socket support,

13 삽입부.13 Insertion.

이하, 도면을 참조하여 본 발명을 상세히 설명한다.Hereinafter, the present invention will be described in detail with reference to the drawings.

도 1은 본 발명의 옥외용 엘이디 전광판의 분해 사시도, 도 2는 본 발명의 옥외용 엘이디의 외관도로서, (a)는 정면도, (b)는 측면도, (c)는 후면도, (d)는 상면도, 도 3은 본 발명의 옥외용 엘이디 전광판에서 사용되는 구동소자 연결용 소켓의 외관도로서, (a)는 상면도, (b)는 좌측면도, (c)는 하측면도이다.1 is an exploded perspective view of an outdoor LED display board of the present invention, Figure 2 is an external view of the outdoor LED of the present invention, (a) is a front view, (b) is a side view, (c) is a rear view, (d) is Top view, Figure 3 is an external view of the drive element connecting socket used in the outdoor LED display board of the present invention, (a) is a top view, (b) is a left side view, (c) is a bottom view.

도 1에서 볼 수 있는 것처럼, 본 발명의 옥외용 LED 전광판은, 발광소자(5)를 평면적으로 배열한 LED 보드(1)와, 상기 발광소자를 구동하기 위한 구동소자(6)와, 상기 LED 보드(1)와 상기 구동소자(6)를 수용하기 위한 프레임(3,4)을 구비하며, 상기 구동소자(6)들은 상기 LED 보드의 납땜면 쪽에서 소켓(8)을 통해 연결되도록 되어 있다.As can be seen in FIG. 1, the outdoor LED display board of the present invention includes an LED board 1 having a light emitting device 5 arranged in a planar manner, a driving device 6 for driving the light emitting device, and the LED board. 1 and frames 3, 4 for accommodating the drive element 6, the drive elements 6 being connected via a socket 8 on the soldering side of the LED board.

그런데, 전술한 것처럼, LED 보드(1)의 앞면은 LED(5)가 가득 채우고 있으며 그 뒷면은 LED의 납땜부위로 덮여 있기 때문에, LED의 납땜부위 사이에 LED 구동소자(6)를 배치하기가 어렵다. 따라서, 본 발명에서는 특수한 소켓(6)을 고안하여 LED 구동소자(6)를 LED의 납땜부위 사이에 LED 구동소자(6)를 배치하도록 하고 있다.However, as described above, since the front surface of the LED board 1 is filled with the LEDs 5 and the back surface is covered with the soldering portions of the LEDs, it is difficult to arrange the LED driving elements 6 between the soldering portions of the LEDs. it's difficult. Therefore, in the present invention, a special socket 6 is devised so that the LED driving element 6 is disposed between the soldering portions of the LEDs.

즉, 도 2의 (a)에서 볼 수 있는 것처럼, 각 LED 화소(pixel)는 여러개의 LED로 구성되며(본 예에서는 5개), 각 LED 화소 사이는 태양광으로부터의 간섭을 막고 빛의 퍼짐을 방지하기 위하여 간막이(9)가 격자 모양으로 마련되어 있다. 따라서, 간막이(9)가 마련되는 위치의 후면에는 납땜부위가 없으므로, 이곳에는 부품을 조립할 수가 있는 것이다. 그러나, 도면에서 볼 수 있는 바와 같이, 간막이(9)가 차지하고 있는 영역은 매우 좁으므로 보통의 IC가 조립될 수가 없다. 따라서, 본 발명에서는, 도 3에 도시된 것과 같은 특수한 소켓(8)을 고안하여, 간막이(9)가 차지하고 있는 영역에 조립될 수 있으면서도 보통의 IC를 꽂을 수 있도록 하였다.That is, as can be seen in Figure 2 (a), each LED pixel is composed of a plurality of LEDs (five in this example), between each LED pixel to prevent interference from sunlight and light spread In order to prevent this, the partition 9 is provided in grid form. Therefore, since there is no soldering part at the back of the position where the partition 9 is provided, a part can be assembled here. However, as can be seen in the figure, the area occupied by the membrane 9 is so narrow that ordinary ICs cannot be assembled. Therefore, in the present invention, a special socket 8 as shown in FIG. 3 is devised so that a normal IC can be inserted while being assembled in a region occupied by the membrane 9.

즉, 도 3에서 볼 수 있는 것처럼, 소켓(8)은 납땜홀에 삽입되어 솔더링되는 삽입부(13)와, 소켓(8)을 일정 높이로 지지하기 위한 지지부(12)와, IC를 수용하기 위한 수용부(10)를 구비한다. 도 3의 (b)에서 볼 수 있는 것처럼, 소켓(8)이 조립되는 부위는 삽입부(13) 사이의 간격이 상기 간막이(9)가 차지하고 있는 영역 안에 수용될 수 있는 거리인 "b"로 설정되어 있다. 반면, 수용부(10)는 IC의 단자와의 접촉부(11) 사이의 간격이 보통의 IC를 수용할 수 있는 간격인 "a"로 설정되어 있다. 따라서, 상기 간막이(9)가 차지하고 있는 영역 안에 납땜될 수 있으면서도, 보통의 IC를 사용할 수 있게 된다.That is, as can be seen in Figure 3, the socket 8 is inserted into the soldering hole 13, the support portion 12 for supporting the socket 8 to a predetermined height, and to accommodate the IC It has a receiving portion 10 for. As can be seen in FIG. 3 (b), the site where the socket 8 is assembled is “b” where the distance between the inserts 13 can be accommodated in the area occupied by the partition 9. It is set. On the other hand, the accommodating part 10 is set to "a" which is the space | interval between the contact part 11 and the terminal of an IC which can accommodate a normal IC. Therefore, it is possible to use a normal IC while soldering in the area occupied by the membrane 9.

이와 같이 구성하면, 종래의 전광판에서와 같이 LED 보드(1)와 LED 구동보드(2) 사이를 전기적으로 연결하는 커넥터를 둘 필요가 없이 소켓(8)에 의해서 LED 구동소자(6)와 LED 보드(1)가 전기적으로 연결되므로, LED 보드(1)와 구동소자와의 사이에 연결 가능한 신호선의 숫자가 현저히 증가하므로, 종래의 전광판에서처럼 다이나믹 방식으로 LED(5)를 구동하는 것이 아니라 스태틱 방식으로 LED(5)를 구동할 수 있게 된다.In this configuration, the LED driving element 6 and the LED board are connected to each other by the socket 8 without having to have a connector for electrically connecting the LED board 1 and the LED driving board 2 as in the conventional electronic display board. Since (1) is electrically connected, the number of signal lines that can be connected between the LED board 1 and the driving element is remarkably increased, so that the LED 5 is driven in a static manner rather than in a dynamic manner as in a conventional electronic display. The LED 5 can be driven.

이상 본 발명을 도면을 예로 들어 상세히 설명하였지만, 본 발명은 상기 설명이나 도면에 한정되는 것은 아니다. 예를 들면, 도면에서는 한 화소에 포함되는 LED의 수가 5개인 경우를 도시하였지만, 이는 3개든 4개든 그 숫자에 구애받지 않는다. 이와 같이 본 기술분야에서 통상의 지식을 가진 자라면 본 발명의 사상에서 벗어나지 않으면서 많은 변경과 수정을 가할 수 있다는 것은 명확하다 할 것이다.Although the present invention has been described in detail with reference to the drawings, the present invention is not limited to the above description or the drawings. For example, although the figure shows a case where the number of LEDs included in one pixel is five, this is not limited to the number of three or four. As such, it will be apparent to those skilled in the art that many changes and modifications can be made without departing from the spirit of the present invention.

별도의 LED 구동보드를 마련하지 않으므로, 도 2의 (c)에서 볼 수 있는 것처럼, 전광판의 후면에서 LED 구동소자를 바로 억세스할 수 있을 뿐만 아니라, LED 구동소자가 소켓에 조립되어 있으므로 교체가 용이하다는 효과가 있다.Since a separate LED drive board is not provided, as shown in FIG. 2 (c), not only can the LED drive device be directly accessed from the rear of the display board, but also the LED drive device is assembled in the socket for easy replacement. It is effective.

또한, 별도의 LED 구동보드를 마련하지 않음에 따라 전광판의 두께가 얇아져서, 경량이고 슬림화된 전광판을 얻을 수 있으므로, 운반 및 설치가 간편하다는 효과가 있다.In addition, by not providing a separate LED drive board, the thickness of the signboard is thin, so that a light and slim signboard can be obtained, there is an effect that it is easy to carry and install.

또한, 다이나믹 방식이 아닌 스태틱 방식으로 LED를 구동하므로, 특히 옥외용의 경우 요구되는 높은 휘도를 달성할 수가 있다는 효과가 있다.In addition, since the LED is driven in a static manner rather than in a dynamic manner, there is an effect that the high brightness required in particular for outdoor use can be achieved.

Claims (1)

발광소자를 평면적으로 배열한 LED 보드와,An LED board in which light emitting elements are arranged in a plane; 상기 발광소자를 스태틱 방식으로 구동하기 위한 구동소자와,A driving device for driving the light emitting device in a static manner; 상기 LED 보드를 앞쪽에서 유지시켜주는 전면틀과,The front frame to keep the LED board from the front, 상기 LED 보드를 뒤쪽에서 유지시켜주는 후면틀을 구비하며,It has a rear frame for maintaining the LED board from the back, 상기 구동소자들은 상기 LED 보드의 납땜면 쪽에서 소켓을 통해 연결되는 것을 특징으로 하는 LED 전광판.The driving device is an LED display board, characterized in that connected via the socket on the soldering side of the LED board.
KR1019970054859A 1997-10-24 1997-10-24 Outdoor led display board KR100227707B1 (en)

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Publication number Priority date Publication date Assignee Title
KR102241420B1 (en) 2019-11-06 2021-04-16 주식회사 대한전광 MANUFACTURING METHOD OF HIGH RESOLUTION-SUPER SLIM DISPLAY LED MODULE HAVING COB(Chip On Board) STRUCTURE ON BOTH SIDE AND HIGH RESOLUTION-SUPER SLIM DISPLAY LED MODULE HAVING COB(Chip On Board) STRUCTURE ON BOTH SIDE

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Publication number Priority date Publication date Assignee Title
KR20030056070A (en) * 2001-12-27 2003-07-04 주식회사 대한전광 A LED module having a LED lamp for surface-mouting
KR100743521B1 (en) * 2007-04-23 2007-07-27 에프엠테크놀로지 주식회사 Led module for electric signboard

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR102241420B1 (en) 2019-11-06 2021-04-16 주식회사 대한전광 MANUFACTURING METHOD OF HIGH RESOLUTION-SUPER SLIM DISPLAY LED MODULE HAVING COB(Chip On Board) STRUCTURE ON BOTH SIDE AND HIGH RESOLUTION-SUPER SLIM DISPLAY LED MODULE HAVING COB(Chip On Board) STRUCTURE ON BOTH SIDE

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