JP4994217B2 - lighting equipment - Google Patents

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JP4994217B2
JP4994217B2 JP2007332843A JP2007332843A JP4994217B2 JP 4994217 B2 JP4994217 B2 JP 4994217B2 JP 2007332843 A JP2007332843 A JP 2007332843A JP 2007332843 A JP2007332843 A JP 2007332843A JP 4994217 B2 JP4994217 B2 JP 4994217B2
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lighting fixture
subunit
light
light emitting
organic
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JP2009158188A (en
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喜之 三宅
正喜 小林
秀治 河地
達也 鈴木
忠史 村上
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Panasonic Corp
Panasonic Holdings Corp
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Panasonic Corp
Matsushita Electric Industrial Co Ltd
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  • Non-Portable Lighting Devices Or Systems Thereof (AREA)
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Abstract

<P>PROBLEM TO BE SOLVED: To arrange efficiently a plurality of surface light sources and reduce an area of non-light-emitting region. <P>SOLUTION: Lighting apparatus sub-units 3A, 3B are constructed by arranging an organic EL light-emitting element 1 on a plane. In each sub-unit, the corner of the organic EL light-emitting element 1 is cut and the non-light-emitting region 1b of two organic EL light-emitting elements 1 are arranged in substance in B region on one straight line. The lighting apparatus sub-units 3A, 3B are superimposed so that the organic EL light-emitting element 1 of the other lighting apparatus sub-unit may be arranged in a region S where the organic EL light-emitting element 1 of one of the lighting apparatus sub-units 3A, 3B does not exist to form the lighting apparatus 5. <P>COPYRIGHT: (C)2009,JPO&amp;INPIT

Description

本発明は、面状光源を利用した照明器具に関するものである。   The present invention relates to a lighting apparatus using a planar light source.

近年、有機ＥＬ表示装置のような面状光源を利用した照明器具においても大型化が要請されている。発光面の大型化のため、基板を大型化する場合、製造工程におけるＴＦＴ（薄膜トランジスタ）の製造ライン等、製造装置の規模が必然的に大型化する。また、基板を大型化することにより、歩留まりが低下等が懸念される。そこで、比較的生産効率の高い大きさの基板に基づいて製作される面状光源を、複数平面上に配置することによって、大型の発光面を得ることを目的とした照明器具が存在する。   In recent years, there is a demand for an increase in the size of a lighting fixture that uses a planar light source such as an organic EL display device. In order to increase the size of the light emitting surface, when the substrate is increased in size, the scale of a manufacturing apparatus such as a TFT (thin film transistor) manufacturing line in the manufacturing process is inevitably increased. In addition, there is a concern that the yield may be reduced by increasing the size of the substrate. In view of this, there is a lighting fixture intended to obtain a large light emitting surface by arranging planar light sources manufactured on the basis of a substrate having a relatively high production efficiency on a plurality of planes.

特許文献１には、複数の有機ＥＬ表示パネルをパネル支持部材に並べた表示モジュールが開示されている。当該表示モジュールにおいては、隣接した有機ＥＬ表示パネルの表示エリアの周囲における非表示エリアが、平面的に重なるように配置されている。このような構成により、表示モジュールの視認性向上、サイズの小型化などが図られている（特許文献１）。   Patent Document 1 discloses a display module in which a plurality of organic EL display panels are arranged on a panel support member. In the display module, the non-display areas around the display areas of adjacent organic EL display panels are arranged so as to overlap in a plane. With such a configuration, the visibility of the display module is improved and the size is reduced (Patent Document 1).

特開２００６−２２４６９７号公報JP 2006-224697 A

上述の表示モジュールにおいて、複数の有機ＥＬ表示パネルは一次元的に、すなわち一直線上に配置されている。複数の有機ＥＬ表示パネルを単純に一次元的に配置する場合に比べ、非表示エリアを重ねながら配置する場合、非表示エリアの面積を減少させ、有効な表示エリアの面積を拡大させることができる。   In the above display module, the plurality of organic EL display panels are arranged one-dimensionally, that is, on a straight line. Compared to the case where a plurality of organic EL display panels are simply arranged one-dimensionally, when the non-display areas are arranged in an overlapping manner, the area of the non-display areas can be reduced and the effective display area can be increased. .

しかしながら、複数の有機ＥＬ表示パネルを一次元的のみならず二次元的、すなわち平面状に配置する場合、上記の構成下では効率的に有機ＥＬ表示パネルを配置することは困難となる。   However, when a plurality of organic EL display panels are arranged not only one-dimensionally but also two-dimensionally, that is, in a planar shape, it is difficult to efficiently arrange the organic EL display panels under the above configuration.

そこで、本発明は、複数の面状光源を効率的に平面状に配置する技術を提供することを目的とする。   Accordingly, an object of the present invention is to provide a technique for efficiently arranging a plurality of planar light sources in a planar shape.

本発明の照明器具は、第１の照明器具サブユニットと、第２の照明器具サブユニットを重ね合わせて構成される照明器具であって、前記第１の照明器具サブユニットおよび前記第２の照明器具サブユニットの各々は、複数の面状光源を、平面内に配置することにより構成される照明器具サブユニットであって、前記面状光源は、光を出射する発光領域と光を出射しない非発光領域を含み、当該非発光領域は前記面状光源の周辺部に配置され、前記非発光領域が存在する領域の幅が、二つの非発光領域の幅を合計した量よりも小さくなるように、隣接する二つの面状光源が相対的に配置され、前記面状光源は実質的に正方形形状を呈し、隣接する面状光源は正方形形状の角部を介して接し、前記正方形形状の角部がカットされ、隣接する二つの面状光源のカットされた角部が接触し、当該隣接する二つの面状光源の非発光領域が、実質的に一直線上に配置され、前記第１の照明器具サブユニット及び前記第２の照明器具サブユニットの一方の面状光源が存在しない領域に、他方の照明器具サブユニットの面状光源が配置されるように、前記第１の照明器具サブユニット及び前記第２の照明器具サブユニットが重ねあわされ、前記第１の照明器具サブユニットの実質的に一直線上に配置された前記非発光領域に対し、前記第２の照明器具サブユニットの実質的に一直線上に配置された前記非発光領域のみが重ねあわされたものである。 The lighting fixture of the present invention is a lighting fixture configured by superimposing a first lighting fixture subunit and a second lighting fixture subunit, and the first lighting fixture subunit and the second lighting fixture. Each of the fixture subunits is a lighting fixture subunit configured by arranging a plurality of planar light sources in a plane, and the planar light source emits light and emits no light. Including a light emitting region, the non-light emitting region is disposed in a peripheral portion of the planar light source, and the width of the region where the non light emitting region exists is smaller than the total amount of the widths of the two non light emitting regions. Two adjacent planar light sources are relatively disposed , the planar light source has a substantially square shape, the adjacent planar light sources are in contact with each other via a square corner, and the square corner is Is cut and two adjacent The cut corners of the light source are in contact with each other, and the non-light emitting areas of the two adjacent planar light sources are arranged substantially in a straight line, and the first light fixture subunit and the second light fixture The first lighting fixture subunit and the second lighting fixture subunit are overlapped so that the planar light source of the other lighting fixture subunit is arranged in an area where one planar light source of the subunit does not exist. The non-light emitting area disposed substantially in line with the second luminaire subunit relative to the non-light emitting area disposed substantially in line with the first luminaire subunit Is the only one that has been overlaid .

上記構成によれば、照明器具において、面状光源を二次元的に配置する場合でも、非発光領域の面積を減少させ、発光面積率を上げることが可能となる。
また、上記構成によれば、非発光領域の面積を減少させ、発光面積率を上げることを容易に達成することが可能となる。 According to the above configuration, even when the planar light source is two-dimensionally arranged in the lighting fixture, it is possible to reduce the area of the non-light emitting region and increase the light emitting area ratio.
Moreover, according to the said structure, it becomes possible to reduce the area of a non-light-emitting area | region and to achieve easily that a light emission area rate is raised.

上記照明器具において、前記非発光領域が、前記発光領域の全周を囲んでいるように構成することができる。 The said lighting fixture WHEREIN: The said non-light emission area | region can be comprised so that the perimeter of the said light emission area | region may be enclosed .

前記第１の照明器具サブユニット及び前記第２の照明器具サブユニットの基準面からの高さが異なるように、前記第１の照明器具サブユニットまたは前記第２の照明器具サブユニットのいずれかを支持部材によって支持することが好ましい。   Either the first lighting fixture subunit or the second lighting fixture subunit is set so that the height from the reference plane of the first lighting fixture subunit and the second lighting fixture subunit is different. It is preferable to support by a support member.

前記面状光源の一例は有機ＥＬ発光素子である。   An example of the planar light source is an organic EL light emitting element.

本発明によれば、照明器具において非発光領域の面積を減少させ、発光面積率を上げることが可能となる。したがって、照明器具の小型化を図ることができる。   ADVANTAGE OF THE INVENTION According to this invention, it becomes possible to reduce the area of a non-light emission area | region in a lighting fixture, and to raise a light emission area rate. Therefore, it is possible to reduce the size of the lighting fixture.

以下、本発明の実施の形態について、図面を参照しながら詳細に説明する。   Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.

図１は、本発明の照明器具を示す図である。照明器具は、面状光源としての複数の有機ＥＬ（Electroluminescense）発光素子を一または複数の平面内に配置することにより構成される。図１において、複数の有機ＥＬ発光素子１を平面内に配置することにより、照明器具サブユニット３Ａ，３Ｂが構成され、さらに点線矢印で示すように照明器具サブユニット３Ａ，３Ｂを重ね合わせることにより、照明器具５が構成される。   FIG. 1 is a diagram showing a lighting fixture of the present invention. A lighting fixture is comprised by arrange | positioning the several organic EL (Electroluminescense) light emitting element as a planar light source in one or several planes. In FIG. 1, lighting fixture subunits 3A and 3B are configured by arranging a plurality of organic EL light emitting elements 1 in a plane, and further, lighting fixture subunits 3A and 3B are overlaid as indicated by dotted arrows. The lighting fixture 5 is configured.

有機ＥＬ発光素子１は、図示せぬ複数の画素がマトリックス状に配置されて形成され、各画素にはスイッチング用のＴＦＴ（Thin Film Transistor）が形成されている。尚、本発明では面状光源として有機ＥＬ発光素子を例示したが、光源の種類は特に限定はされない。そして、有機ＥＬ発光素子１は、光を出射する発光領域１ａと光を出射しない非発光領域１ｂを含み、非発光領域１ｂは有機ＥＬ発光素子１の周辺部に配置されている。非発光領域１ｂは、一般的には有機ＥＬ発光素子１のフレームであるが、光を発しない画素が存在する部分も非発光領域含まれる。   The organic EL light-emitting element 1 is formed by arranging a plurality of pixels (not shown) in a matrix, and a switching TFT (Thin Film Transistor) is formed in each pixel. In the present invention, the organic EL light emitting element is exemplified as the planar light source, but the type of the light source is not particularly limited. The organic EL light emitting element 1 includes a light emitting region 1 a that emits light and a non-light emitting region 1 b that does not emit light, and the non-light emitting region 1 b is disposed in the periphery of the organic EL light emitting device 1. The non-light-emitting region 1b is generally a frame of the organic EL light-emitting element 1, but a portion where pixels that do not emit light exist is also included in the non-light-emitting region.

本実施形態において、有機ＥＬ発光素子１は実質的に平面視正方形形状を呈し、非発光領域１ｂが、発光領域１ａの全周を囲むように形成されている。すなわち、非発光領域１ｂは有機ＥＬ発光素子１の全周に形成されている。ただし、非発光領域１ｂが発光領域１ａの全周を囲むことは本発明の必須要件ではない。また、有機ＥＬ発光素子が平面視正方形形状を呈することも、本発明の必須要件ではない。   In the present embodiment, the organic EL light emitting device 1 has a substantially square shape in plan view, and the non-light emitting region 1b is formed so as to surround the entire circumference of the light emitting region 1a. That is, the non-light emitting region 1 b is formed on the entire circumference of the organic EL light emitting element 1. However, it is not an essential requirement of the present invention that the non-light emitting region 1b surrounds the entire circumference of the light emitting region 1a. Further, it is not an essential requirement of the present invention that the organic EL light emitting element has a square shape in plan view.

照明器具サブユニット３Ａ，３Ｂは、隣接する有機ＥＬ発光素子１の角部が接することにより、構成される。特に本実施形態では、有機ＥＬ発光素子１の正方形形状の角部がカットされ、カット面１ｃが形成され、隣接する二つの有機ＥＬ発光素子１のカット面１ｃが接触し、接合されることにより、照明器具サブユニット３Ａ，３Ｂの各々が構成される。カット面１は、正方形形状の辺に対し、４５度の角度をもって交わるように形成されている。   The lighting fixture subunits 3 </ b> A and 3 </ b> B are configured by contacting the corner portions of the adjacent organic EL light emitting elements 1. In particular, in the present embodiment, the square corners of the organic EL light-emitting element 1 are cut to form the cut surface 1c, and the cut surfaces 1c of the two adjacent organic EL light-emitting elements 1 are in contact with each other and bonded together. Each of the lighting fixture subunits 3A and 3B is configured. The cut surface 1 is formed so as to intersect with a square side with an angle of 45 degrees.

さらに図１（ａ）の点線矢印で示すように、照明器具サブユニット３Ａ，３Ｂを重ね合わせることにより、照明器具５が構成される。すなわち、本実施形態では、一平面内に形成された第１の照明器具サブユニットたる照明器具サブユニット３Ａと、一平面内に形成された第２の照明器具サブユニットたる照明器具サブユニット３Ｂを重ね合わせて照明器具５が構成されている。そして、図１（ａ）のＳで表された領域、すなわち、照明器具サブユニット３Ａ及び照明器具サブユニット３Ｂの一方の有機ＥＬ発光素子１が存在しない領域に、他方の照明器具サブユニットの有機ＥＬ発光素子１が配置されるように、照明器具サブユニット３Ａ及び照明器具サブユニット３Ｂが重ねあわされる。   Furthermore, as shown by the dotted arrows in FIG. 1A, the lighting fixture 5 is configured by overlapping the lighting fixture subunits 3A and 3B. That is, in the present embodiment, the lighting fixture subunit 3A as the first lighting fixture subunit formed in one plane and the lighting fixture subunit 3B as the second lighting fixture subunit formed in one plane are arranged. The lighting fixture 5 is configured by overlapping. And in the area | region represented by S of Fig.1 (a), ie, the area | region where one organic EL light emitting element 1 of the lighting fixture subunit 3A and the lighting fixture subunit 3B does not exist, the organic of the other lighting fixture subunit is shown. The lighting fixture subunit 3A and the lighting fixture subunit 3B are overlapped so that the EL light emitting element 1 is disposed.

本実施形態では、隣接する二つの有機ＥＬ発光素子１の非発光領域１ｂが、実質的に一直線上に配置されている。すなわち、図１（ｂ），（ｃ）に示すように、一直線状に画定された領域Ｂにおいて、照明器具サブユニット３Ａ、照明器具サブユニット３Ｂ各々の非発光領域１ｂが存在する。   In the present embodiment, the non-light emitting areas 1b of the two adjacent organic EL light emitting elements 1 are substantially arranged on a straight line. That is, as shown in FIGS. 1B and 1C, in the region B defined in a straight line, there is a non-light emitting region 1b of each of the lighting fixture subunit 3A and the lighting fixture subunit 3B.

本実施形態では、隣接する二つの有機ＥＬ発光素子１のカット面１ｃが接触し、接合されることにより、二つの有機ＥＬ発光素子１の非発光領域１ｂが、実質的に一直線上に配置されている。この結果、非発光領域１ｂが存在する領域の幅（領域Ｂの幅）が、二つの非発光領域１ｂの幅を合計した量よりも小さくなるように、隣接する二つの有機ＥＬ発光素子１が相対的に配置されている。また、有機ＥＬ発光素子１の存在しない領域Ｓが、照明器具サブユニット３Ａ、照明器具サブユニット３Ｂ各々において存在し、当該領域Ｓにおいて、他方の照明器具サブユニットの有機ＥＬ発光素子１の発光領域１ａが、障害なく配置される。   In the present embodiment, the cut surfaces 1c of the two adjacent organic EL light emitting elements 1 are in contact with each other and bonded together, whereby the non-light emitting regions 1b of the two organic EL light emitting elements 1 are substantially arranged in a straight line. ing. As a result, the two adjacent organic EL light emitting devices 1 are arranged such that the width of the region where the non-light emitting region 1b exists (the width of the region B) is smaller than the total amount of the widths of the two non-light emitting regions 1b. It is relatively arranged. In addition, a region S where the organic EL light emitting element 1 does not exist exists in each of the lighting fixture subunit 3A and the lighting fixture subunit 3B, and in the region S, the light emitting region of the organic EL light emitting device 1 of the other lighting fixture subunit. 1a is arranged without obstacles.

カット面ｃを形成しないで二つの有機ＥＬ発光素子１を単純に隣接させた場合、非発光領域１ｂの幅は、図１（ｂ），（ｃ）で示した領域Ｂの幅の２倍となり、非発光領域１ｂの面積が増大する。また、有機ＥＬ発光素子１の存在しない領域Ｓが存在しなくなるため、二つの照明器具サブユニットを重ね合わせることはできなくなる。   When the two organic EL light emitting elements 1 are simply adjacent to each other without forming the cut surface c, the width of the non-light emitting region 1b is twice the width of the region B shown in FIGS. The area of the non-light emitting region 1b increases. In addition, since the region S where the organic EL light emitting element 1 does not exist does not exist, it is impossible to overlap the two lighting fixture subunits.

しかしながら、本実施形態では、二つの有機ＥＬ発光素子１の非発光領域１ｂを実質的に一直線上に配置し、かつ有機ＥＬ発光素子１の存在しない領域Ｓを、照明器具サブユニット３Ａ、照明器具サブユニット３Ｂ各々において確保している。この結果、照明器具サブユニット３Ａ、照明器具サブユニット３Ｂ各々を重ね合わせることにより、発光領域１ａに非発光領域１ｂが重なることなく、各ユニットの非発光領域１ｂのみを効率的に重ねながら（領域Ｂ）、照明器具を構成することが可能となる。したがって、本発明によれば、照明器具５において非発光領域１ｂの面積を減少させ、発光面積率を上げることが可能となる。そして、照明器具５の小型化を図ることができる。   However, in the present embodiment, the non-light emitting area 1b of the two organic EL light emitting elements 1 is arranged substantially in a straight line, and the area S where the organic EL light emitting element 1 does not exist is designated as the lighting fixture subunit 3A, the lighting fixture. It is secured in each subunit 3B. As a result, by superimposing each of the lighting fixture subunit 3A and the lighting fixture subunit 3B, the non-light emitting region 1b does not overlap the light emitting region 1a, and only the non-light emitting region 1b of each unit is efficiently overlapped (region). B) A lighting fixture can be configured. Therefore, according to the present invention, it is possible to reduce the area of the non-light emitting region 1b in the lighting fixture 5 and increase the light emitting area ratio. And size reduction of the lighting fixture 5 can be achieved.

本実施形態では、カット面１ｃを正方形の辺に４５度の角度で交わる直線により構成している。しかしながら、カット面１ｃの形状、すなわち、正方形形状の角部をカットする方法は特に限定されない。隣接する二つの有機ＥＬ発光素子１の非発光領域１ｂが、実質的に一直線上に配置されるものであるならば、カット面１ｃの形状は限定されない。   In this embodiment, the cut surface 1c is configured by a straight line that intersects a square side at an angle of 45 degrees. However, the method of cutting the shape of the cut surface 1c, that is, the square corner is not particularly limited. The shape of the cut surface 1c is not limited as long as the non-light emitting regions 1b of the two adjacent organic EL light emitting elements 1 are arranged substantially in a straight line.

図２は、照明器具５を、支持部材たる所定の収容箱７に収容した実施形態を示す。図２（ａ）の例では、収容箱７の底面に、高さの異なる柱７ａ，７ｂが形成されており、有機ＥＬ発光素子１を支持している。長い柱７ｂは、図１の照明器具サブユニット３Ａの有機ＥＬ発光素子１を支持し、短い柱７ａは、図１の照明器具サブユニット３Ｂの有機ＥＬ発光素子１を支持する。この構成により、照明器具サブユニット３Ａ及び照明器具サブユニット３Ｂは、収容箱７の底面を基準面とした場合、当該基準面から異なる高さ位置に安定的に配置される。また、照明器具サブユニットを柱上に配置するだけで異なる高さ位置に配置することが可能なため、照明器具の製造が容易なものとなる。尚、給電部９は、有機ＥＬ発光素子１及び収容箱７を電気的、機械的に接続するための部材である。   FIG. 2 shows an embodiment in which the luminaire 5 is housed in a predetermined housing box 7 as a support member. In the example of FIG. 2A, pillars 7 a and 7 b having different heights are formed on the bottom surface of the storage box 7 and support the organic EL light emitting element 1. The long pillar 7b supports the organic EL light emitting element 1 of the lighting fixture subunit 3A of FIG. 1, and the short pillar 7a supports the organic EL light emitting element 1 of the lighting fixture subunit 3B of FIG. With this configuration, the lighting fixture subunit 3 </ b> A and the lighting fixture subunit 3 </ b> B are stably arranged at different height positions from the reference plane when the bottom surface of the storage box 7 is used as the reference plane. Moreover, since it is possible to arrange the lighting fixture subunits at different heights simply by placing them on the pillar, it becomes easy to manufacture the lighting fixture. The power feeding unit 9 is a member for electrically and mechanically connecting the organic EL light emitting element 1 and the housing box 7.

図２（ｂ）の例では、収容箱７の底面に、柱７ｃが形成されている。本例では、柱７ｃは図１の照明器具サブユニット３Ａの有機ＥＬ発光素子１を支持し、照明器具サブユニット３Ｂの有機ＥＬ発光素子１は、収容箱７の底面上に直接配置されている。   In the example of FIG. 2B, a column 7 c is formed on the bottom surface of the storage box 7. In this example, the pillar 7c supports the organic EL light emitting element 1 of the lighting fixture subunit 3A of FIG. 1, and the organic EL light emitting device 1 of the lighting fixture subunit 3B is directly disposed on the bottom surface of the housing box 7. .

図２（ｃ）の例では、収容箱７の底面に、高さの異なる柱７ｄ，７ｅが形成されており、有機ＥＬ発光素子１を支持している。更に他の有機ＥＬ発光素子１は、収容箱７の底面上に直接配置されている。すなわち、本例では３段階の異なる高さに照明器具サブユニットが配置されている。このように、本発明では、重ね合わされる照明器具サブユニットの枚数は特に限定されない。   In the example of FIG. 2C, pillars 7 d and 7 e having different heights are formed on the bottom surface of the storage box 7 and support the organic EL light emitting element 1. Still another organic EL light emitting element 1 is directly disposed on the bottom surface of the storage box 7. That is, in this example, the lighting fixture subunits are arranged at three different heights. Thus, in the present invention, the number of lighting fixture subunits to be superimposed is not particularly limited.

図３（ａ）〜（ｃ）の例は、基本的に図２の構成と同様である。しかしながら、本例では、有機ＥＬ発光素子１を支持する柱が収容箱７の側ではなく、有機ＥＬ発光素子１の底面に一体的に形成されている。   The examples of FIGS. 3A to 3C are basically the same as the configuration of FIG. However, in this example, the pillar that supports the organic EL light-emitting element 1 is integrally formed on the bottom surface of the organic EL light-emitting element 1 instead of the housing box 7 side.

本発明の照明器具とは直接照明光を発する器具のみならず、所定の情報を光（可視光、非可視光の双方を含む）によって伝えるディスプレイやその一部のようなものも含む。例えば、液晶表示装置のバックライトには本発明の照明器具が用いられるが、この場合も同様に上述した効果を得ることができる。   The lighting apparatus of the present invention includes not only an apparatus that directly emits illumination light but also a display or a part thereof that transmits predetermined information by light (including both visible light and invisible light). For example, the lighting apparatus of the present invention is used for the backlight of the liquid crystal display device. In this case, the above-described effects can be obtained in the same manner.

以上、本発明の各種実施形態を説明したが、本発明は前記実施形態において示された事項に限定されず、明細書の記載、並びに周知の技術に基づいて、当業者がその変更・応用することも本発明の予定するところであり、保護を求める範囲に含まれる。   Although various embodiments of the present invention have been described above, the present invention is not limited to the matters shown in the above-described embodiments, and those skilled in the art can make modifications and applications based on the description and well-known techniques. This is also the scope of the present invention, and is included in the scope of seeking protection.

本発明によれば、照明器具において非発光領域の面積を減少させ、発光面積率を上げることが可能となる。したがって、照明器具の小型化を図ることができる。   ADVANTAGE OF THE INVENTION According to this invention, it becomes possible to reduce the area of a non-light emission area | region in a lighting fixture, and to raise a light emission area rate. Therefore, it is possible to reduce the size of the lighting fixture.

本発明の実施形態の照明器具を示す図であり、（ａ）は照明器具の分解斜視図であり、（ｂ）は照明器具の平面図であり、（ｃ）は（ｂ）のＩ−Ｉ線に沿った断面図。It is a figure which shows the lighting fixture of embodiment of this invention, (a) is an exploded perspective view of a lighting fixture, (b) is a top view of a lighting fixture, (c) is II of (b) Sectional drawing along a line. 本発明の他の実施形態の照明器具の断面図。Sectional drawing of the lighting fixture of other embodiment of this invention. 本発明の他の実施形態の照明器具の断面図。Sectional drawing of the lighting fixture of other embodiment of this invention.

符号の説明Explanation of symbols

１ 有機ＥＬ発光素子
３Ａ、３Ｂ 照明器具サブユニット
５ 照明器具
７ 収容箱
９ 給電部 DESCRIPTION OF SYMBOLS 1 Organic EL light emitting element 3A, 3B Lighting fixture subunit 5 Lighting fixture 7 Storage box 9 Feeding part

Claims (4)

第１の照明器具サブユニットと、第２の照明器具サブユニットを重ね合わせて構成される照明器具であって、
前記第１の照明器具サブユニットおよび前記第２の照明器具サブユニットの各々は、複数の面状光源を、平面内に配置することにより構成される照明器具サブユニットであって、
前記面状光源は、光を出射する発光領域と光を出射しない非発光領域を含み、当該非発光領域は前記面状光源の周辺部に配置され、
前記非発光領域が存在する領域の幅が、二つの非発光領域の幅を合計した量よりも小さくなるように、隣接する二つの面状光源が相対的に配置され、
前記面状光源は実質的に正方形形状を呈し、隣接する面状光源は正方形形状の角部を介して接し、
前記正方形形状の角部がカットされ、隣接する二つの面状光源のカットされた角部が接触し、
当該隣接する二つの面状光源の非発光領域が、実質的に一直線上に配置され、
前記第１の照明器具サブユニット及び前記第２の照明器具サブユニットの一方の面状光源が存在しない領域に、他方の照明器具サブユニットの面状光源が配置されるように、前記第１の照明器具サブユニット及び前記第２の照明器具サブユニットが重ねあわされ、
前記第１の照明器具サブユニットの実質的に一直線上に配置された前記非発光領域に対し、前記第２の照明器具サブユニットの実質的に一直線上に配置された前記非発光領域のみが重ねあわされた照明器具。 A lighting fixture configured by superimposing a first lighting fixture subunit and a second lighting fixture subunit;
Each of the first lighting fixture subunit and the second lighting fixture subunit is a lighting fixture subunit configured by arranging a plurality of planar light sources in a plane,
The planar light source includes a light emitting region that emits light and a non-light emitting region that does not emit light, and the non-light emitting region is disposed in a peripheral portion of the planar light source,
The adjacent two planar light sources are relatively arranged so that the width of the region where the non-light-emitting region exists is smaller than the total amount of the widths of the two non-light-emitting regions ,
The planar light source has a substantially square shape, and adjacent planar light sources are in contact with each other via a square corner,
The corners of the square shape are cut, the cut corners of two adjacent planar light sources are in contact,
The non-light emitting areas of the two adjacent planar light sources are arranged substantially in a straight line,
The first light fixture subunit and the second light fixture subunit are arranged in a region where one of the planar light sources does not exist, so that the first light fixture subunit of the planar light source is disposed. A lighting fixture subunit and the second lighting fixture subunit are overlaid,
Only the non-light emitting area arranged substantially in a straight line of the second lighting fixture subunit overlaps the non-light emitting area arranged substantially in a straight line of the first lighting fixture subunit. The lit lighting fixture . 請求項１記載の照明器具であって、
前記非発光領域が、前記発光領域の全周を囲んでいる照明器具。 The lighting apparatus according to claim 1,
The lighting fixture in which the non-light emitting area surrounds the entire circumference of the light emitting area. 請求項１記載の照明器具であって、
前記第１の照明器具サブユニット及び前記第２の照明器具サブユニットの基準面からの高さが異なるように、前記第１の照明器具サブユニットまたは前記第２の照明器具サブユニットのいずれかが支持部材によって支持された照明器具。 The lighting apparatus according to claim 1 ,
Either the first luminaire subunit or the second luminaire subunit so that the height of the first luminaire subunit and the second luminaire subunit from the reference plane is different. A lighting fixture supported by a support member. 請求項１から３のいずれか１項記載の照明器具であって、
前記面状光源は有機ＥＬ発光素子である照明器具。 It is a lighting fixture of any one of Claim 1 to 3 ,
The planar light source is a lighting fixture which is an organic EL light emitting element.
JP2007332843A 2007-12-25 2007-12-25 lighting equipment Expired - Fee Related JP4994217B2 (en)

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