JP2008292959A - Led luminescence panel - Google Patents

Led luminescence panel Download PDF

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JP2008292959A
JP2008292959A JP2007141089A JP2007141089A JP2008292959A JP 2008292959 A JP2008292959 A JP 2008292959A JP 2007141089 A JP2007141089 A JP 2007141089A JP 2007141089 A JP2007141089 A JP 2007141089A JP 2008292959 A JP2008292959 A JP 2008292959A
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light emitting
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line
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emitting diodes
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JP5161488B2 (en
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Mitsugi Hirata
貢 平田
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Panasonic Electric Works Co Ltd
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Abstract

<P>PROBLEM TO BE SOLVED: To provide an LED luminescence panel hardly generating a part where the arrangements of the LEDs are thin. <P>SOLUTION: The luminescence region 6 is divided into two kinds of small regions 12 including small regions 12 of lateral underlying tone, the contour of which is lateral underlying tone, and the small regions 12 of longitudinal underlying tone, the contour of which is longitudinal underlying tone, and at least a part of contour line of the luminescence region 6 of every small regions 12, and virtual lines 17 traversing the small regions 12 while extending in a perpendicular direction is set in a prescribed interval. The extending direction of the virtual line 17 is determined for every small regions 12 so that in the small regions 12 of longitudinal underlying tone is determined in the lateral underlying tone and in the small regions 12 of lateral underlying tone is determined in the longitudinal underlying tone. The LEDs 2 are arranged on the virtual lines 17 with the predetermined pitch within the allowable range so as to be arranged along the contour lines of luminescence region 6 at the end of the virtual lines 17. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

本発明は、複数の発光ダイオードを光源として用い、発光ダイオード複数個分の幅寸法を有する線で文字等を表した発光領域の形状に発光可能なＬＥＤ発光パネルに関するものである。   The present invention relates to an LED light-emitting panel that uses a plurality of light-emitting diodes as a light source and can emit light in the shape of a light-emitting region in which characters and the like are represented by lines having a width dimension corresponding to the plurality of light-emitting diodes.

近年、発光ダイオードを光源として用いた装置が多く提供されており、その一例として、看板のように建物の外壁に取り付けられ、線で表された文字や図柄を発光表示するＬＥＤ発光パネルが提案されている（たとえば特許文献１参照）。この種のＬＥＤ発光パネルは、複数の発光ダイオードと、一表面側に発光ダイオードが配置される発光領域を有したベース体とを備え、複数の発光ダイオードを一斉に発光させることで発光領域の形状に発光する。   In recent years, many devices using light-emitting diodes as light sources have been provided. As an example, LED light-emitting panels that are attached to the outer wall of a building like a signboard and emit light and display characters and symbols are proposed. (For example, refer to Patent Document 1). This type of LED light-emitting panel includes a plurality of light-emitting diodes and a base body having a light-emitting region in which the light-emitting diodes are arranged on one surface side, and the plurality of light-emitting diodes emit light simultaneously to form the light-emitting region. Flashes on.

また、このように複数の発光ダイオードを配列する場合において、隣り合う発光ダイオードの特性を略同一としばらつきを発生させないための技術も知られている（たとえば特許文献２参照）。これにより、複数の発光ダイオードを配列して文字等を表示する場合でも、文字等を形づくる発光領域内でばらつきが少なく、ネオン管などの単一の光源を用いる場合に近い発光特性を得ることができる。   In addition, when arranging a plurality of light emitting diodes in this way, a technique for making the characteristics of adjacent light emitting diodes substantially the same so as not to cause variations is also known (for example, see Patent Document 2). As a result, even when a plurality of light emitting diodes are arranged to display characters and the like, there is little variation in the light emitting region forming the characters and the like, and light emission characteristics close to those when using a single light source such as a neon tube can be obtained. it can.

ところで、遠方からでも視認可能なように表示する文字等を大型化する場合、発光ダイオード複数個分の幅寸法を有する線により発光領域を形成することで、文字等を表す線を太くすることが一般的である。たとえば、図６（ａ）に示すように「ｓｎｃｏａｉ」という各文字を表示するＬＥＤ発光パネル１の場合、発光領域６に配置される複数の発光ダイオード２は、発光領域６の幅方向に複数個ずつ並ぶように配置される。ここで、発光領域６内での発光ダイオード２の配置は、縦横に等間隔で複数個ずつ配列されたマトリクス状とされており、この配置によれば、隣り合う発光ダイオード２間の距離が均等になる。   By the way, when a character or the like to be displayed so as to be visible from a distance is enlarged, a light-emitting region is formed by a line having a width dimension corresponding to a plurality of light-emitting diodes, thereby making a line representing the character or the like thicker. It is common. For example, as shown in FIG. 6A, in the case of the LED light-emitting panel 1 displaying each character “sncoai”, a plurality of light-emitting diodes 2 arranged in the light-emitting region 6 are plural in the width direction of the light-emitting region 6. They are arranged in line. Here, the arrangement of the light emitting diodes 2 in the light emitting region 6 is a matrix in which a plurality of the light emitting diodes are arranged at equal intervals in the vertical and horizontal directions. According to this arrangement, the distances between the adjacent light emitting diodes 2 are equal. become.

また、マトリクス状の配置に代えて、図６（ｂ）に示すように発光領域６の輪郭線に沿って発光ダイオード２を配置することも考えられる。この場合、発光ダイオード２は発光領域６の輪郭線で囲まれた全域に極力均等に配置されるように、輪郭線に直交する方向に等間隔で複数列配置される。
特開２００５−１２８２０６号公報 特開２００４−０４７６２０号公報 Further, instead of the matrix arrangement, it is also conceivable to arrange the light emitting diodes 2 along the outline of the light emitting region 6 as shown in FIG. In this case, the light emitting diodes 2 are arranged in a plurality of rows at equal intervals in a direction orthogonal to the contour line so that the light emitting diodes 2 are disposed as evenly as possible in the entire region surrounded by the contour line of the light emitting region 6.
JP 2005-128206 A JP 2004-047620 A

しかし、図６（ａ）のように発光ダイオード２をマトリクス状に配置する構成や、図６（ｂ）のように発光領域６の輪郭線に沿って複数列の発光ダイオード２を配列する構成においては、発光領域６内に発光ダイオード２の配置が疎となる部分を生じる可能性が高い。すなわち、図６（ａ）の例では、発光領域６の輪郭線がマトリクスの行および列に対して傾いている場合や、発光領域６の輪郭線が曲線である場合に、マトリクス状に並んだ発光ダイオード２でこれらの輪郭線を表現することはできず、発光領域６のうち輪郭線付近に発光ダイオード２の配置が疎となる部分を生じることになる。図６（ｂ）の例では、発光領域６の輪郭線に沿って発光ダイオード２を配置することができるものの、発光領域６において輪郭線から離れた中央部では発光ダイオード２の配置が疎となる部分を生じることがある。   However, in a configuration in which the light emitting diodes 2 are arranged in a matrix as shown in FIG. 6A, or in a configuration in which a plurality of rows of light emitting diodes 2 are arranged along the contour line of the light emitting region 6 as shown in FIG. Is likely to cause a portion in the light emitting region 6 where the arrangement of the light emitting diodes 2 is sparse. That is, in the example of FIG. 6A, when the contour line of the light emitting region 6 is inclined with respect to the rows and columns of the matrix or when the contour line of the light emitting region 6 is a curve, the light emitting region 6 is arranged in a matrix. These contour lines cannot be expressed by the light emitting diode 2, and a portion in which the arrangement of the light emitting diodes 2 is sparse is generated in the vicinity of the contour line in the light emitting region 6. In the example of FIG. 6B, the light emitting diodes 2 can be arranged along the outline of the light emitting region 6, but the arrangement of the light emitting diodes 2 is sparse in the central portion away from the outline in the light emitting region 6. May produce part.

このように発光領域６内に発光ダイオード２の配置が疎となる部分があると、発光ダイオード２を発光させても発光しない部分が発光領域６内に生じ、発光領域６の形状どおりの発光表示を実現できないこととなる。その結果、発光領域６の表す文字等が認識されにくくなったり、見映えが悪くなったりするという問題がある。   Thus, when there is a portion in which the arrangement of the light emitting diodes 2 is sparse in the light emitting region 6, a portion that does not emit light even if the light emitting diode 2 emits light is generated in the light emitting region 6. Cannot be realized. As a result, there is a problem that characters or the like represented by the light emitting area 6 are not easily recognized or the appearance is deteriorated.

本発明は上記事由に鑑みて為されたものであって、発光領域内において発光ダイオードの配置が疎となる部分を生じにくいＬＥＤ発光パネルを提供することを目的とする。   This invention is made | formed in view of the said reason, Comprising: It aims at providing the LED light emission panel which is hard to produce the part where arrangement | positioning of a light emitting diode becomes sparse in a light emission area | region.

請求項１の発明では、複数の発光ダイオードと、一表面側に発光ダイオードが配置される発光領域を有したパネル部とを備え、発光領域が発光ダイオード複数個分の幅寸法を有する線により任意形状に形成されており、複数の発光ダイオードを一斉に発光させることで発光領域の形状に発光するＬＥＤ発光パネルであって、パネル部は、発光領域を延長方向に分割して成る複数の小領域を有し、小領域ごとに発光領域の輪郭線の少なくとも一部に直交する方向に延長されて小領域を横断する仮想線が所定の間隔で設定されており、仮想線の延長方向は小領域ごとに決定され、発光ダイオードは、仮想線の端部において発光領域の輪郭線に沿って配置されるように予め規定されている許容範囲内のピッチで仮想線上に配列されていることを特徴とする。   According to the first aspect of the present invention, a plurality of light emitting diodes and a panel portion having a light emitting region in which the light emitting diodes are arranged on one surface side are provided, and the light emitting region is arbitrarily defined by a line having a width dimension corresponding to a plurality of light emitting diodes. An LED light-emitting panel that is formed into a shape and emits light in the shape of a light-emitting region by simultaneously emitting light from a plurality of light-emitting diodes, and the panel unit is a plurality of small regions that are formed by dividing the light-emitting region in the extending direction Imaginary lines extending in a direction perpendicular to at least a part of the contour line of the light emitting area and crossing the small area are set at predetermined intervals for each small area, and the extending direction of the imaginary line is the small area The light emitting diodes are arranged on the imaginary line at a pitch within a predetermined allowable range so as to be arranged along the contour line of the light emitting region at the end of the imaginary line. To.

この構成によれば、発光ダイオードは、仮想線の端部において発光領域の輪郭線に沿って配置されるように予め規定されている許容範囲内のピッチで仮想線上に配列されているので、発光領域の輪郭線に沿って発光ダイオードが配置されることで、発光領域の輪郭線付近に発光ダイオードの配置が疎となる部分を生じにくくなり、また、仮想線上に許容範囲内のピッチで発光ダイオードが配置されることで、発光領域のうち輪郭線から離れた中央部においても発光ダイオードの配置が疎となる部分を生じにくくなる。要するに、発光領域の全域において発光ダイオードを略均等に配置することができ、発光領域内に発光ダイオードの配置が疎となる部分を生じにくくなる。結果的に、発光ダイオードを発光させたときに発光領域内に発光しない部分が生じにくく、発光領域の形状どおりの発光表示を実現することができるから、発光領域の表す文字等が認識されやすくなり、見映えもよくなるという利点がある。   According to this configuration, the light emitting diodes are arranged on the imaginary line at a pitch within a predetermined allowable range so as to be arranged along the contour line of the light emitting region at the end of the imaginary line. By arranging the light emitting diodes along the outline of the region, it becomes difficult to produce a portion where the arrangement of the light emitting diodes is sparse in the vicinity of the outline of the light emitting region, and the light emitting diodes with a pitch within an allowable range on the virtual line As a result, the light emitting diodes are less likely to be sparsely arranged even in the central portion of the light emitting region away from the contour line. In short, the light emitting diodes can be arranged substantially uniformly throughout the light emitting region, and it is difficult to produce a portion in which the light emitting diodes are sparsely arranged in the light emitting region. As a result, when the light emitting diode is caused to emit light, a portion that does not emit light does not easily occur in the light emitting region, and the light emitting display according to the shape of the light emitting region can be realized. , There is an advantage that it looks better.

請求項２の発明は、請求項１の発明において、前記パネル部が、前記発光領域の輪郭線上において接線が予め定められた基準線と所定の基準角度で交差する各点をそれぞれ起点とし、互いを結ぶ直線が発光領域内を通り且つ互いの距離が最短である一対の起点同士を結ぶ分割線を境界として前記小領域に分割されることを特徴とする。   According to a second aspect of the present invention, in the first aspect of the invention, the panel unit starts from each point where a tangent line intersects a predetermined reference line on a contour line of the light emitting region at a predetermined reference angle. Is divided into the small areas with a dividing line connecting a pair of starting points having the shortest distance from each other as a boundary.

この構成によれば、発光領域の輪郭線上において接線が基準線と所定の基準角度で交差する起点同士を結ぶ分割線によって発光領域が小領域に分割されるので、発光領域は、基準線に対する輪郭線の角度に応じて小領域に分割されることになる。したがって、発光領域の輪郭線に曲線が含まれている場合でも、規則的に発光領域を小領域に分割することができ、この小領域ごとに仮想線の延長方向が決定されることによって、輪郭線の大部分に略直交する方向に仮想線を設定することができる。結果的に、発光領域の輪郭線に沿って配置される発光ダイオード同士の間隔が仮想線同士の間隔に比べて極端に大きくなることはなく、発光ダイオードの発光時に発光領域の輪郭線を明確に表示できるという利点がある。   According to this configuration, the light emitting area is divided into small areas by the dividing line connecting the starting points where the tangent line intersects the reference line at a predetermined reference angle on the outline of the light emitting area. It is divided into small areas according to the angle of the line. Therefore, even when a curve is included in the contour line of the light emitting region, the light emitting region can be regularly divided into small regions, and the extension direction of the virtual line is determined for each small region. A virtual line can be set in a direction substantially orthogonal to the majority of the line. As a result, the interval between the light emitting diodes arranged along the contour line of the light emitting region does not become extremely large compared to the interval between the virtual lines, and the contour line of the light emitting region is clearly defined when the light emitting diode emits light. There is an advantage that it can be displayed.

請求項３の発明は、請求項２の発明において、前記分割線が、２つの線分からなり、一方の線分が、一方の前記起点から前記発光領域の輪郭線の法線に沿って延出されたものであり、他方の線分が、他方の起点から前記基準線と平行または直交するように延出されたものであることを特徴とする。   According to a third aspect of the present invention, in the second aspect of the present invention, the dividing line includes two line segments, and one line segment extends from one of the starting points along a normal line of the contour line of the light emitting region. The other line segment extends from the other starting point so as to be parallel or orthogonal to the reference line.

この構成によれば、小領域は、それぞれ予め定められた角度を持つ２つの線分からなる分割線を境界とするので、小領域同士の境界付近においても、発光ダイオードが疎または密となることを防止することができる。   According to this configuration, each small region has a dividing line composed of two line segments each having a predetermined angle as a boundary, so that the light emitting diodes are sparse or dense even near the boundary between the small regions. Can be prevented.

請求項４の発明は、請求項２または請求項３に記載の発明において、前記基準角度が４５度であることを特徴とする。   According to a fourth aspect of the present invention, in the second or third aspect of the present invention, the reference angle is 45 degrees.

この構成によれば、発光領域は、基準線に対する輪郭線の角度が４５度以上であるか否かに応じて小領域に分割されることになる。すなわち、発光領域は、輪郭線が基準線に平行する方向を基調とする部分と、基準線に直交する方向を基調とする部分との２種類の小領域に分割されることとなり、この小領域ごとに仮想線の延長方向が決定されることによって、輪郭線の大部分に略直交する方向に仮想線を設定することができる。したがって、発光領域の輪郭線に沿って配置される発光ダイオード同士の間隔が仮想線同士の間隔に比べて極端に大きくなることはなく、発光ダイオードの発光時に発光領域の輪郭線を明確に表示できるという利点がある。   According to this configuration, the light emitting area is divided into small areas depending on whether the angle of the contour line with respect to the reference line is 45 degrees or more. That is, the light emitting area is divided into two types of small areas, a part whose outline is based on a direction parallel to the reference line and a part whose direction is orthogonal to the reference line. By determining the extension direction of the virtual line for each, the virtual line can be set in a direction substantially orthogonal to the majority of the contour line. Therefore, the interval between the light emitting diodes arranged along the outline of the light emitting region is not extremely larger than the interval between the virtual lines, and the outline of the light emitting region can be clearly displayed when the light emitting diode emits light. There is an advantage.

請求項５の発明は、請求項１ないし請求項４のいずれかの発明において、前記発光ダイオードが、前記パネル部の前記小領域に外接し一辺が小領域内の前記仮想線に平行する矩形状の仮想枠のうち前記一辺に隣接する他辺の長さ寸法を、予め規定されている前記許容範囲内のピッチで除して求まる列数で配置されていることを特徴とする。   According to a fifth aspect of the present invention, in any one of the first to fourth aspects, the light emitting diode has a rectangular shape that circumscribes the small region of the panel portion and has one side parallel to the virtual line in the small region. In this virtual frame, the length dimension of the other side adjacent to the one side is arranged by the number of columns obtained by dividing by the pitch within the allowable range defined in advance.

この構成によれば、仮想線の長手方向における発光ダイオード同士の間隔だけでなく、仮想線の幅方向における発光ダイオード同士の間隔についても、予め規定されている前記許容範囲内のピッチとすることができるので、発光領域の全域に対して略等間隔で発光ダイオードを配置することが可能となる。   According to this configuration, not only the interval between the light emitting diodes in the longitudinal direction of the imaginary line, but also the interval between the light emitting diodes in the width direction of the imaginary line can be set to a pitch within the predetermined allowable range. Thus, the light emitting diodes can be arranged at substantially equal intervals with respect to the entire light emitting region.

本発明は、発光領域の輪郭線に沿って発光ダイオードが配置されることで、発光領域の輪郭線付近に発光ダイオードの配置が疎となる部分を生じにくくなり、また、仮想線上に許容範囲内のピッチで発光ダイオードが配置されることで、発光領域のうち輪郭線から離れた中央部においても発光ダイオードの配置が疎となる部分を生じにくくなるので、発光領域の全域において発光ダイオードを略均等に配置することができ、発光領域内に発光ダイオードの配置が疎となる部分を生じにくくなるという利点がある。   In the present invention, since the light emitting diodes are arranged along the contour line of the light emitting region, it becomes difficult to generate a portion where the light emitting diodes are sparse in the vicinity of the contour line of the light emitting region, and within the allowable range on the virtual line. Since the light emitting diodes are arranged at the pitch of the light emitting diodes, the light emitting diodes are less likely to be sparsely arranged even in the central portion of the light emitting region away from the contour line. There is an advantage that a portion in which the arrangement of the light emitting diodes is sparse is less likely to occur in the light emitting region.

本実施形態のＬＥＤ発光パネルは、看板のように建物の外壁に取り付けられ、線で表された文字や図柄を発光表示するものである。本実施形態では、図２（ｂ）に示すように「ｓｎｃｏａｉ」という文字を表示するＬＥＤ発光パネルを例示する。   The LED light emission panel of this embodiment is attached to the outer wall of a building like a signboard, and displays the character and design represented by the line as light emission display. In this embodiment, as shown in FIG. 2B, an LED light-emitting panel that displays characters “sncoai” is illustrated.

このＬＥＤ発光パネル１は、文字ごとに、図３に示すように、複数の発光ダイオード２と、これら複数の発光ダイオード２が取り付けられる薄箱状の筐体３とを備えている。筐体３は、前面開口のボディ４と、ボディ４の前面に覆着される板状のパネル部５とを有し、一表面（前面）側に発光ダイオード２が配置される発光領域６を有している。なお、本実施形態では、発光ダイオードチップ（図示せず）を基板（図示せず）に搭載し、レンズ７を有したパッケージ８にて発光ダイオードチップを封止した所謂ＬＥＤモジュールを発光ダイオード２として用いるが、発光ダイオード２はこの構成に限るものでなく、たとえばリードフレーム上に発光ダイオードチップを搭載して砲弾レンズでパッケージングした所謂砲弾型ＬＥＤや、発光ダイオードチップそのものを発光ダイオード２として用いるようにしてもよい。   As shown in FIG. 3, the LED light-emitting panel 1 includes a plurality of light-emitting diodes 2 and a thin box-shaped housing 3 to which the plurality of light-emitting diodes 2 are attached, for each character. The housing 3 includes a body 4 having a front opening and a plate-like panel portion 5 that is covered on the front surface of the body 4, and a light emitting region 6 in which the light emitting diode 2 is disposed on one surface (front surface) side. Have. In this embodiment, a so-called LED module in which a light emitting diode chip (not shown) is mounted on a substrate (not shown) and the light emitting diode chip is sealed with a package 8 having a lens 7 is used as the light emitting diode 2. However, the light-emitting diode 2 is not limited to this configuration. For example, a so-called bullet-type LED in which a light-emitting diode chip is mounted on a lead frame and packaged with a bullet lens, or the light-emitting diode chip itself is used as the light-emitting diode 2. It may be.

発光領域６は、発光ダイオード２の複数個分の幅寸法を有する線により任意形状に形成されているものであって、図３の例では「ｃ」の文字を形づくっている。ここで、筐体３は発光領域６の形状に合わせて形成されており、したがって、パネル部５の前面全域が発光領域６となる。パネル部５には、発光ダイオード２のレンズ７を挿入可能な配置孔９が複数貫設されており、発光ダイオード２は、パネル部５の背面側から配置孔９に挿入されることによりレンズ７をパネル部５の前面側に露出させる。なお、発光ダイオード２からの光をパネル部５の前面で反射させることにより、パネル部５の前面全域が光って見えるようにしてもよい。   The light emitting region 6 is formed in an arbitrary shape by a line having a width of a plurality of light emitting diodes 2, and in the example of FIG. 3, the letter “c” is formed. Here, the housing 3 is formed in accordance with the shape of the light emitting region 6, and therefore, the entire front surface of the panel unit 5 becomes the light emitting region 6. A plurality of arrangement holes 9 into which the lens 7 of the light emitting diode 2 can be inserted are provided in the panel portion 5, and the light emitting diode 2 is inserted into the arrangement hole 9 from the back side of the panel portion 5, thereby causing the lens 7. Is exposed to the front side of the panel unit 5. In addition, you may make it make the whole front surface of the panel part 5 shine by reflecting the light from the light emitting diode 2 by the front surface of the panel part 5. FIG.

ボディ４は、パネル部５と同形状の背板１０と、背板１０の外周縁の全周から前方に立設された周壁１１とを具備し、パネル部５との間に、発光ダイオード２に電力供給するための電源部（図示せず）および配線（図示せず）や、発光ダイオード２におけるレンズ７以外の部分を収納する空間を形成する。ここでは、発光ダイオード２や電源部等を筐体３内で固定する部材の図示は省略する。ＬＥＤ発光パネル１は、ボディ４の背板１０の背面を施工面（ここでは建物の外壁表面）に対向させる形で、固定部材（図示せず）を用いて取り付けられる。ボディ４の周壁１１は、パネル部５に対して隙間なく結合されることにより雨水などの水が筐体３内に入ることを防止している。また、発光ダイオード２の光がパネル部５の側方に広がることを防止するため、パネル部５の前面の全周からボディ４の周壁１１が前方に突出するように周壁１１の高さ寸法を設定してもよい。   The body 4 includes a back plate 10 having the same shape as that of the panel unit 5, and a peripheral wall 11 erected forward from the entire circumference of the outer peripheral edge of the back plate 10. A space for storing a power supply unit (not shown) and wiring (not shown) for supplying power to the LED and a portion other than the lens 7 in the light emitting diode 2 is formed. Here, illustration of members for fixing the light emitting diode 2 and the power supply unit in the housing 3 is omitted. The LED light-emitting panel 1 is attached using a fixing member (not shown) such that the back surface of the back plate 10 of the body 4 faces the construction surface (here, the outer wall surface of the building). The peripheral wall 11 of the body 4 is connected to the panel portion 5 without a gap, thereby preventing water such as rainwater from entering the housing 3. Further, in order to prevent the light of the light emitting diode 2 from spreading to the side of the panel unit 5, the height of the peripheral wall 11 is set so that the peripheral wall 11 of the body 4 protrudes forward from the entire circumference of the front surface of the panel unit 5. It may be set.

なお、ここでは図３に示すように「ｃ」の文字を表すＬＥＤ発光パネル１について構造を説明したが、他の文字を表すＬＥＤ発光パネル１においても基本的な構造は同様である。   In addition, although the structure was demonstrated about the LED light emission panel 1 showing the character of "c" here as shown in FIG. 3, the basic structure is the same also in the LED light emission panel 1 showing another character.

ところで、本実施形態のＬＥＤ発光パネル１は、遠方からでも視認可能なように表示する文字を比較的大型としたものであって、発光ダイオード２の複数個分の幅寸法を有する線により発光領域６を形成することで、文字等を表す線を太くしてある。ここにおいて、発光領域６内における発光ダイオード２の配置に関しては様々な形態が考えられるが、本実施形態では、発光ダイオード２を以下に説明する方法で決定される配置とすることによって、発光領域６内において発光ダイオード２の配置が疎となる部分が生じにくいものとしている。   By the way, the LED light-emitting panel 1 of the present embodiment has a relatively large character to be displayed so that it can be seen from a distance, and a light-emitting region is formed by a line having a width dimension corresponding to a plurality of light-emitting diodes 2. By forming 6, lines representing characters and the like are thickened. Here, various arrangements can be considered for the arrangement of the light emitting diodes 2 in the light emitting region 6. In the present embodiment, the light emitting diodes 6 are arranged by the arrangement described below in the light emitting region 6. It is assumed that a portion where the arrangement of the light emitting diodes 2 is sparse is difficult to occur.

本実施形態では、コンピュータを用いて発光ダイオード２の配置を決定しており、上述のように「ｓｎｃｏａｉ」という各文字の形状の発光領域６とする場合には、「ｓｎｃｏａｉ」という各文字の形状を実際にＬＥＤ発光パネル１に採用する書体でコンピュータに取り込む。紙面上に表示した「ｓｎｃｏａｉ」という文字像をスキャナで読み込むようにしてもよい。取り込まれた発光領域６の形状は、白と黒の２値データに変換される。   In this embodiment, the arrangement of the light-emitting diodes 2 is determined using a computer. When the light-emitting region 6 has the shape of each character “sncoai” as described above, the shape of each character “sncoai” is determined. Is actually captured in a computer with a typeface adopted for the LED light-emitting panel 1. A character image “sncoai” displayed on paper may be read by a scanner. The shape of the captured light emitting area 6 is converted into white and black binary data.

次に、発光領域６を独立した発光領域６に分割する発光領域分割処理を行う。つまり、「ｓｎｃｏａｉ」という６文字分の発光領域６がある場合、「ｓ」、「ｎ」、「ｃ」、「ｏ」、「ａ」、「ｉ」の６つの発光領域６に分割し、さらに「ｉ」について「・」の部分と残りの部分とに分割することで、合計７つの独立した発光領域６に分割する。これから後は、分割後の発光領域６のそれぞれについて発光ダイオード２の配置を決めることになる。以下、「ａ」の発光領域６を例として発光ダイオード２の配置を決定する方法を説明するが、他の発光領域６についても同様の方法で発光ダイオード２の配置が決定される。   Next, a light emission area dividing process for dividing the light emission area 6 into independent light emission areas 6 is performed. In other words, if there is a light emitting area 6 for six characters “sncoai”, it is divided into six light emitting areas 6 of “s”, “n”, “c”, “o”, “a”, “i”, Further, “i” is divided into a “•” part and a remaining part, so that a total of seven independent light emitting areas 6 are obtained. Thereafter, the arrangement of the light emitting diodes 2 is determined for each of the divided light emitting regions 6. Hereinafter, a method of determining the arrangement of the light emitting diodes 2 will be described using the light emitting region 6 of “a” as an example, but the arrangement of the light emitting diodes 2 is also determined for the other light emitting regions 6 by the same method.

まず、図４に示すように「ａ」の発光領域６を延長方向において複数の小領域１２に分割する小領域分割処理を行う。具体的には、ＬＥＤ発光パネル１を設置した状態での横方向（水平方向）に延長された基準線１３を予め定めた上で、発光領域６の輪郭線上において接線１４が基準線１３と所定の基準角度θ１で交差する各点をそれぞれ起点１５として抽出する。ここで、基準角度θ１は予め定められた角度であって、本実施形態では４５度としてある。そして、抽出された起点１５のうち、互いを結ぶ直線が発光領域６内を通り且つ互いの距離が最短である一対の起点１５同士を結ぶ線を分割線１６として、当該分割線１６を境界として発光領域６を複数の小領域１２に分割する。これにより、発光領域６は、基準線１３に対する輪郭線の角度が４５度以上であるか否かに応じて小領域１２に分割されることになる。すなわち、発光領域６は、輪郭線が水平方向（基準線１３に平行する方向）を基調とする小領域（以下、横基調の小領域という）１２と、垂直方向（基準線に直交する方向）を基調とする小領域（以下、縦基調の小領域という）１２との２種類の小領域１２に分割されることとなる。図４の例では、「ａ」の文字を形づくる発光領域６は、６つの小領域１２に分割される。   First, as shown in FIG. 4, a small area dividing process for dividing the light emitting area 6 of “a” into a plurality of small areas 12 in the extending direction is performed. Specifically, the reference line 13 extended in the horizontal direction (horizontal direction) in a state where the LED light-emitting panel 1 is installed is determined in advance, and the tangent line 14 and the reference line 13 on the contour line of the light emitting region 6 are predetermined. Each point that intersects at the reference angle θ1 is extracted as a starting point 15. Here, the reference angle θ1 is a predetermined angle, and is 45 degrees in the present embodiment. Then, among the extracted starting points 15, a line connecting a pair of starting points 15 having a shortest distance from each other through a straight line connecting the light emitting regions 6 is defined as a dividing line 16, and the dividing line 16 is defined as a boundary. The light emitting area 6 is divided into a plurality of small areas 12. Thereby, the light emitting area 6 is divided into small areas 12 according to whether or not the angle of the contour line with respect to the reference line 13 is 45 degrees or more. That is, the light emitting region 6 includes a small region (hereinafter, referred to as a lateral small region) 12 whose outline is based on a horizontal direction (a direction parallel to the reference line 13) and a vertical direction (a direction orthogonal to the reference line). Is divided into two types of small regions 12, namely, a small region 12 (hereinafter referred to as a vertical small region) 12. In the example of FIG. 4, the light emitting area 6 that forms the character “a” is divided into six small areas 12.

ここで、一対の起点１５間を結ぶ分割線１６は、２つの線分からなり、一方の線分が一方の起点１５から発光領域６の輪郭線の法線に沿って延出されており、他方の線分が他方の起点１５から基準線１３と平行または直交するように延出されている。なお、上述のように小領域１２に分割する処理は、発光領域６の輪郭線の傾きを検出するソフトウェアを利用して実現することができる。   Here, the dividing line 16 connecting the pair of starting points 15 includes two line segments, and one line segment extends from the one starting point 15 along the normal line of the contour of the light emitting region 6, and the other Is extended from the other starting point 15 so as to be parallel or orthogonal to the reference line 13. Note that the process of dividing the small area 12 as described above can be realized by using software that detects the inclination of the contour line of the light emitting area 6.

続いて、図５に示すように発光ダイオード２の配列の基準となる仮想線１７を小領域１２ごとに設定する仮想線設定処理を行う。仮想線１７は、小領域１２ごとに発光領域６の輪郭線の少なくとも一部に直交する方向に延長されて小領域１２を横断するように複数本ずつ設定される。仮想線１７の延長方向は、縦基調の小領域１２では横方向、横基調の小領域１２では縦方向となるように小領域１２ごとに決定される。各小領域１２に設定される仮想線１７の本数は、小領域１２に外接し一辺が仮想線１７に平行する矩形（長方形あるいは正方形）状の仮想枠（図示せず）のうち前記一辺に隣接する他辺の長さ寸法を、予め規定されている許容範囲内のピッチで除することにより求められる。   Subsequently, as shown in FIG. 5, a virtual line setting process for setting the virtual line 17 serving as a reference for the arrangement of the light emitting diodes 2 for each small region 12 is performed. A plurality of virtual lines 17 are set so as to extend in a direction orthogonal to at least a part of the contour line of the light emitting region 6 for each small region 12 and cross the small region 12. The extension direction of the imaginary line 17 is determined for each small area 12 so that the horizontal direction is in the vertical direction small area 12 and the vertical direction is in the horizontal direction small area 12. The number of virtual lines 17 set in each small region 12 is adjacent to the one side of a rectangular (rectangular or square) virtual frame (not shown) circumscribing the small region 12 and parallel to the virtual line 17 on one side. This is obtained by dividing the length dimension of the other side by a pitch within a predetermined allowable range.

具体的には、横基調の小領域１２の場合、仮想枠の横幅を予め規定されている目標ピッチで除することにより求まる数だけ小領域１２に仮想線１７を設定する。ここで、求まる数が整数でなければ、小数点以下を繰り上げあるいは切り捨てることにより整数化し、小数点以下を繰り上げるか切り捨てるかは、整数化後の本数が仮想線１７を予め規定されている許容範囲内のピッチ（たとえば目標ピッチから目標ピッチの１０％増までの範囲）で配置可能なものとなるように決定される。仮想線１７の本数が決まれば、仮想枠内において横方向にＸ軸、縦方向にＹ軸をとり、仮想線１７の実際のピッチに従って、仮想枠内での各仮想線１７のＸ座標を計算する。要するに、仮想枠の左下の角の座標を（Ｘ，Ｙ）＝（０，０）とし、仮想枠内の仮想線１７に左端から順に１，２，３…となる列番号を割り当てたときには、仮想枠内での各仮想線１７のＸ座標は、
Ｘ＝｛（仮想枠の横幅）／（仮想線の本数−１）｝×（列番号−１）
で求められる。このように求まる各Ｘ座標を通り、且つＹ軸に平行な線分をそれぞれ仮想線１７として小領域１２の内側に設定する。 Specifically, in the case of the horizontal basic small area 12, the virtual lines 17 are set in the small areas 12 by the number obtained by dividing the horizontal width of the virtual frame by a predetermined target pitch. Here, if the number to be obtained is not an integer, it is converted into an integer by rounding up or down after the decimal point, and whether the number after the rounding is rounded up or rounded down is within the allowable range defined in advance. It is determined so that it can be arranged at a pitch (for example, a range from the target pitch to a 10% increase of the target pitch). Once the number of virtual lines 17 is determined, the X-axis in the horizontal direction and the Y-axis in the vertical direction are taken in the virtual frame, and the X coordinate of each virtual line 17 in the virtual frame is calculated according to the actual pitch of the virtual line 17 To do. In short, when the coordinates of the lower left corner of the virtual frame are (X, Y) = (0, 0) and column numbers 1, 2, 3... Are assigned to the virtual line 17 in the virtual frame in order from the left end, The X coordinate of each virtual line 17 within the virtual frame is
X = {(width of virtual frame) / (number of virtual lines−1)} × (column number−1)
Is required. Line segments passing through the X coordinates thus obtained and parallel to the Y-axis are set as virtual lines 17 inside the small area 12.

なお、縦基調の小領域１２についても同様であって、仮想枠内での各仮想線１７のＹ座標を計算し、求められた各Ｙ座標を通り、且つＸ軸に平行な線分をそれぞれ仮想線１７として小領域１２内に設定する。   The same applies to the vertical subregion 12, and the Y coordinate of each virtual line 17 in the virtual frame is calculated, and each line segment passing through the obtained Y coordinate and parallel to the X axis is calculated. The virtual line 17 is set in the small area 12.

次に、図１に示すように小領域１２ごとに設定した仮想線１７に従って発光ダイオード２の配置を決定する配置決定処理を行う。ここで、発光ダイオード２は各仮想線１７上に配列されることにより、仮想線１７の幅方向における配置が規定される。また、各仮想線１７上に配列する発光ダイオード２の個数は、それぞれ仮想線１７の長さ寸法を前記許容範囲内のピッチで除することにより求められる。具体的には、仮想線１７の長さ寸法を予め規定されている目標ピッチで除することにより求まる数だけ仮想線１７上に発光ダイオード２を配置する。ここで、求まる数が整数でなければ、小数点以下を繰り上げあるいは切り捨てることにより整数化し、小数点以下を繰り上げるか切り捨てるかは、整数化後の個数が発光ダイオード２を予め規定されている許容範囲内のピッチ（たとえば目標ピッチから目標ピッチの１０％増までの範囲）で配置可能なものとなるように決定される。発光ダイオード２の個数が決まれば、仮想線１７における長手方向の両端部にそれぞれ発光ダイオード２が配置され、且つ仮想線１７上に許容範囲内のピッチで発光ダイオード２が並ぶように、仮想線１７の長手方向における発光ダイオード２の配置を決定する。   Next, as shown in FIG. 1, an arrangement determination process for determining the arrangement of the light emitting diodes 2 according to the virtual line 17 set for each small region 12 is performed. Here, the light emitting diodes 2 are arranged on the virtual lines 17, whereby the arrangement of the virtual lines 17 in the width direction is defined. The number of the light emitting diodes 2 arranged on each virtual line 17 can be obtained by dividing the length of the virtual line 17 by the pitch within the allowable range. Specifically, the light emitting diodes 2 are arranged on the virtual line 17 by the number obtained by dividing the length of the virtual line 17 by a predetermined target pitch. Here, if the obtained number is not an integer, it is converted into an integer by rounding up or down after the decimal point, and whether the number after rounding is rounded up or down is within the allowable range in which the number of the light-emitting diodes 2 is preliminarily defined. It is determined so that it can be arranged at a pitch (for example, a range from the target pitch to a 10% increase of the target pitch). When the number of the light emitting diodes 2 is determined, the light emitting diodes 2 are arranged at both ends in the longitudinal direction of the virtual line 17 and the light emitting diodes 2 are arranged on the virtual line 17 at a pitch within an allowable range. The arrangement of the light emitting diodes 2 in the longitudinal direction is determined.

ここにおいて、仮想線１７は小領域１２の内側に設定されているから、小領域１２の外周（つまり、発光領域６の輪郭線あるいは分割線１６）と各仮想線１７との交点がそれぞれ仮想線１７の始点または終点となり、したがって、発光ダイオード２は各仮想線１７の端部において発光領域６の輪郭線に沿って配置されることとなる。なお、各仮想線１７上の長手方向における発光ダイオード２間のピッチの許容範囲は、上述した仮想線１７間のピッチの許容範囲（たとえば目標ピッチから目標ピッチの１０％増までの範囲）と同じ範囲に規定されており、これにより、仮想線１７の長手方向と幅方向とで発光ダイオード２間のピッチを略均一に揃えることができる。   Here, since the virtual line 17 is set inside the small region 12, the intersection of the outer periphery of the small region 12 (that is, the contour line or the dividing line 16 of the light emitting region 6) and each virtual line 17 is a virtual line. Thus, the light emitting diode 2 is arranged along the contour line of the light emitting region 6 at the end of each virtual line 17. In addition, the allowable range of the pitch between the light emitting diodes 2 in the longitudinal direction on each virtual line 17 is the same as the allowable range of the pitch between the virtual lines 17 (for example, a range from the target pitch to a 10% increase in the target pitch). Thus, the pitch between the light emitting diodes 2 can be made substantially uniform in the longitudinal direction and the width direction of the virtual line 17.

また、本実施形態では、小領域１２の外周と各仮想線１７との交点をそれぞれ仮想線１７の始点または終点としているが、互いに隣接する小領域１２の仮想線１７同士が分割線１６付近で交わる場合には、仮想線１７と分割線１６との交点に代えて、仮想線１７同士の交点を各仮想線１７の始点または終点としてもよい。これにより、分割線１６付近に仮想線１７の始点または終点が集中して、発光ダイオード２が密に配置されてしまうことを回避できる。   In the present embodiment, the intersection of the outer periphery of the small area 12 and each virtual line 17 is set as the start point or the end point of the virtual line 17, but the virtual lines 17 of the small areas 12 adjacent to each other are near the dividing line 16. When intersecting, instead of the intersection of the virtual line 17 and the dividing line 16, the intersection of the virtual lines 17 may be the start point or the end point of each virtual line 17. Thereby, it can be avoided that the start points or the end points of the virtual lines 17 are concentrated near the dividing line 16 and the light emitting diodes 2 are densely arranged.

以上説明した方法により、図２（ａ）に示すように、「ｓｎｃｏａｉ」の全ての文字の発光領域６に関して、コンピュータ上で発光ダイオード２の配置を決定することができる。図２（ｂ）には、上述の方法で決定した発光ダイオード２の配置に従って、パネル部５の発光領域６に発光ダイオード２を配置したＬＥＤ発光パネル１を示す。   By the method described above, as shown in FIG. 2A, the arrangement of the light emitting diodes 2 can be determined on the computer with respect to the light emitting regions 6 of all the characters “sncoai”. FIG. 2B shows the LED light-emitting panel 1 in which the light-emitting diodes 2 are arranged in the light-emitting region 6 of the panel unit 5 in accordance with the arrangement of the light-emitting diodes 2 determined by the above-described method.

上述した構成のＬＥＤ発光パネル１によれば、発光ダイオード２は、仮想線１７の端部において発光領域６の輪郭線に沿って配置されるように予め規定されている許容範囲内のピッチで仮想線１７上に配列されているから、発光領域６の輪郭線に沿って発光ダイオード２が配置されることにより、発光領域６の輪郭線付近に発光ダイオード２の配置が疎となる部分を生じにくくなる。また、仮想線１７上に許容範囲内のピッチで発光ダイオード２が配置されることにより、発光領域６のうち輪郭線から離れた中央部においても発光ダイオード２の配置が疎となる部分を生じにくくなる。したがって、発光領域６の全域において発光ダイオード２を略均等に配置することができ、発光領域６内に発光ダイオード２の配置が疎となる部分を生じにくくなり、結果的に、従来構成と比較して、発光ダイオード２を発光させたときに発光領域６内に発光しない部分が生じにくく、発光領域６の形状どおりの発光表示を実現することができるから、発光領域６の表す文字等が認識されやすくなり、見映えもよくなるという利点がある。さらに、本実施形態では、仮想線１７の延長方向を縦方向と横方向とのいずれかとしたことにより、発光ダイオード２が縦方向（垂直方向）と横方向（水平方向）のいずれかに沿って規則的に配列されるから、ＬＥＤ発光パネル１の製造時における発光ダイオード２の配列作業が簡単であり、且つ発光ダイオード２の発光時の見映えがよいという利点もある。   According to the LED light-emitting panel 1 having the above-described configuration, the light-emitting diodes 2 are virtually arranged at a pitch within an allowable range that is defined in advance so as to be arranged along the contour line of the light-emitting region 6 at the end of the virtual line 17. Since the light emitting diodes 2 are arranged along the contour line of the light emitting region 6 because they are arranged on the line 17, it is difficult to generate a portion where the arrangement of the light emitting diodes 2 is sparse near the contour line of the light emitting region 6. Become. Further, since the light emitting diodes 2 are arranged on the virtual line 17 with a pitch within an allowable range, a portion in which the light emitting diodes 2 are sparsely arranged is hardly generated even in the central portion of the light emitting region 6 away from the contour line. Become. Therefore, the light emitting diodes 2 can be arranged substantially evenly in the entire area of the light emitting region 6, and it becomes difficult to generate a portion in which the arrangement of the light emitting diodes 2 is sparse in the light emitting region 6. As a result, compared with the conventional configuration. Thus, when the light emitting diode 2 is caused to emit light, a portion that does not emit light does not easily occur in the light emitting region 6, and a light emitting display according to the shape of the light emitting region 6 can be realized. There is an advantage that it becomes easier and looks better. Further, in the present embodiment, the extending direction of the virtual line 17 is set to either the vertical direction or the horizontal direction, so that the light emitting diode 2 extends along either the vertical direction (vertical direction) or the horizontal direction (horizontal direction). Since the LEDs are regularly arranged, the operation of arranging the light emitting diodes 2 at the time of manufacturing the LED light emitting panel 1 is simple, and there is an advantage that the appearance of the light emitting diodes 2 at the time of light emission is good.

なお、本実施形態では、発光領域６を縦基調と横基調との２種類の小領域１２に分割しているが、発光領域６をより多くの小領域１２に分割するようにしてもよく、この場合、仮想線１７は、縦方向または横方向に延長されるものに限らず、発光領域６の輪郭線の少なくとも一部に直交する方向に延長されて小領域１２を横断するように、小領域１２ごとに延長方向が決定される。   In the present embodiment, the light emitting region 6 is divided into two types of small regions 12 of vertical and horizontal tones, but the light emitting region 6 may be divided into more small regions 12, In this case, the imaginary line 17 is not limited to be extended in the vertical direction or the horizontal direction, but is extended in a direction orthogonal to at least a part of the contour line of the light emitting area 6 so as to cross the small area 12. The extension direction is determined for each region 12.

本発明の実施形態における発光ダイオードの配置を示す説明図である。It is explanatory drawing which shows arrangement | positioning of the light emitting diode in embodiment of this invention. 同上の発光ダイオードの配置を示し、（ａ）は発光領域の概略図、（ｂ）はＬＥＤ発光パネルの概略図である。The arrangement | positioning of the light emitting diode same as the above is shown, (a) is the schematic of a light emission area | region, (b) is the schematic of an LED light emission panel. 同上のＬＥＤ発光パネルの構造を示す分解斜視図である。It is a disassembled perspective view which shows the structure of a LED light emission panel same as the above. 同上の発光ダイオードの配置を決定する方法の説明図である。It is explanatory drawing of the method of determining arrangement | positioning of the light emitting diode same as the above. 同上の発光ダイオードの配置を決定する方法の説明図である。It is explanatory drawing of the method of determining arrangement | positioning of the light emitting diode same as the above. 従来例を示す概略図である。It is the schematic which shows a prior art example.

符号の説明Explanation of symbols

１ ＬＥＤ発光パネル
２ 発光ダイオード
５ パネル部
６ 発光領域
１２ 小領域
１３ 基準線
１４ 接線
１５ 起点
１６ 分割線
１７ 仮想線
θ１ 基準角度 DESCRIPTION OF SYMBOLS 1 LED light emission panel 2 Light emitting diode 5 Panel part 6 Light emission area | region 12 Small area | region 13 Reference line 14 Tangent 15 Starting point 16 Dividing line 17 Virtual line (theta) 1 Reference angle

Claims (5)

複数の発光ダイオードと、一表面側に発光ダイオードが配置される発光領域を有したパネル部とを備え、発光領域が発光ダイオード複数個分の幅寸法を有する線により任意形状に形成されており、複数の発光ダイオードを一斉に発光させることで前記発光領域の形状に発光するＬＥＤ発光パネルであって、パネル部は、発光領域を延長方向に分割して成る複数の小領域を有し、小領域ごとに発光領域の輪郭線の少なくとも一部に直交する方向に延長されて小領域を横断する仮想線が所定の間隔で設定されており、仮想線の延長方向は小領域ごとに決定され、発光ダイオードは、仮想線の端部において発光領域の輪郭線に沿って配置されるように予め規定されている許容範囲内のピッチで仮想線上に配列されていることを特徴とするＬＥＤ発光パネル。   A plurality of light emitting diodes and a panel portion having a light emitting region in which the light emitting diodes are arranged on one surface side, the light emitting region is formed in an arbitrary shape by a line having a width dimension for a plurality of light emitting diodes, An LED light-emitting panel that emits light in the shape of the light-emitting region by simultaneously emitting light from a plurality of light-emitting diodes, wherein the panel unit has a plurality of small regions obtained by dividing the light-emitting region in the extending direction. Virtual lines extending in a direction perpendicular to at least a part of the contour line of the light emitting area and crossing the small area are set at predetermined intervals, and the extending direction of the virtual line is determined for each small area, and light emission The diodes are arranged on the imaginary line at a pitch within a predetermined allowable range so as to be arranged along the outline of the light emitting region at the end of the imaginary line. Nell. 前記パネル部は、前記発光領域の輪郭線上において接線が予め定められた基準線と所定の基準角度で交差する各点をそれぞれ起点とし、互いを結ぶ直線が発光領域内を通り且つ互いの距離が最短である一対の起点同士を結ぶ分割線を境界として前記小領域に分割されることを特徴とする請求項１記載のＬＥＤ発光パネル。   The panel unit starts from each point where a tangent line intersects with a predetermined reference angle on a contour line of the light emitting region at a predetermined reference angle, a straight line connecting each other passes through the light emitting region, and a mutual distance is The LED light-emitting panel according to claim 1, wherein the LED light-emitting panel is divided into the small regions with a dividing line connecting a pair of starting points being the shortest as a boundary. 前記分割線は、２つの線分からなり、一方の線分は、一方の前記起点から前記発光領域の輪郭線の法線に沿って延出されたものであり、他方の線分は、他方の起点から前記基準線と平行または直交するように延出されたものであることを特徴とする請求項２記載のＬＥＤ発光パネル。   The dividing line is composed of two line segments, and one line segment extends from one starting point along the normal line of the outline of the light emitting region, and the other line segment is the other line segment. The LED light-emitting panel according to claim 2, wherein the LED light-emitting panel extends from a starting point so as to be parallel or orthogonal to the reference line. 前記基準角度は４５度であることを特徴とする請求項２または請求項３に記載のＬＥＤ発光パネル。   4. The LED light-emitting panel according to claim 2, wherein the reference angle is 45 degrees. 前記発光ダイオードは、前記パネル部の前記小領域に外接し一辺が小領域内の前記仮想線に平行する矩形状の仮想枠のうち前記一辺に隣接する他辺の長さ寸法を、予め規定されている前記許容範囲内のピッチで除して求まる列数で配置されていることを特徴とする請求項１ないし請求項４のいずれか１項に記載のＬＥＤ発光パネル。
The light emitting diode is preliminarily defined with a length dimension of the other side adjacent to the one side of the rectangular virtual frame circumscribing the small region of the panel portion and having one side parallel to the virtual line in the small region. 5. The LED light-emitting panel according to claim 1, wherein the LED light-emitting panels are arranged in a number of columns obtained by dividing by a pitch within the allowable range.
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