JP2007299674A - Luminous panel lighting fixture - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a luminous panel lighting fixture which, while maintaining a good appearance, can keep an infrared beam receiver without reducing a luminous area. <P>SOLUTION: The luminous panel lighting fixture 1A is provided with a base plate 2, and a first electrode 3, a luminous layer 4 and a second electrode 5 which are laminated on the base plate 2, a hand operating means 9 emitting an infrared beam, an infrared beam receiver 8 to receive an infrared beam and a controlling part 13 to control a current conductivity between the first electrode 4 and the second electrode 5. The second electrode 5 is composed of a transparent material and on an opposite side of the luminous layer 4 of the second electrode 5, there is provided a reflecting material 7, and the reflecting material 7 has a reflecting filter 72 which can transmit an infrared beam. The infrared beam receiver 8 is provided on the reflecting filter 72. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to a light-emitting panel type lighting fixture.

Conventionally, a light-emitting element 100 in which a first electrode 30, a light-emitting layer 40 that is an organic EL layer, and a second electrode 50 are stacked on a substrate 20 as shown in FIG. Reference 1). In such a light emitting device 100, the substrate 20 is made of transparent glass or the like, the first electrode 30 is made of ITO (Indium Tin Oxide) or the like, and the second electrode 50 is made of Al-Li or the like, Light is emitted from the substrate 20 side.
JP 2000-82807 A

  In recent years, so-called light-emitting panel type lighting fixtures using the above light-emitting elements as light sources of lighting fixtures are being developed. In such a light-emitting panel type lighting fixture, a hand operating means that emits infrared light and an infrared receiving unit that receives infrared light emitted from the hand operating means are provided, for example, lighting / extinguishing or brightness of the lighting equipment. It is desirable to be able to operate the adjustment and the like with the hand operating means.

  Here, if the infrared receiving unit is arranged in the vicinity of the light-emitting panel type lighting fixture, the infrared receiving unit is conspicuous and is not preferable in appearance, and therefore it is conceivable to incorporate the infrared receiving unit into the light emitting panel type lighting fixture. However, since the second electrode 50 is made of Al—Li or the like and does not transmit infrared light, the first electrode 30, the light emitting layer 40, and the second electrode 50 are notched and exposed from the notched portion. It is necessary to dispose the infrared receiver on the substrate 20 to be processed.

  However, if it does in this way, a light emission area will reduce and it is unpreferable from a viewpoint of the light emission efficiency of a lighting fixture.

  In view of such circumstances, an object of the present invention is to provide a light-emitting panel type luminaire that can be provided with an infrared receiving unit while maintaining a good appearance and without reducing the light-emitting area.

  In order to achieve the above-described object, a light-emitting panel lighting device according to claim 1 is configured such that a first electrode, a light-emitting layer, and a second electrode are stacked on a substrate, and light is emitted from the substrate side. A light-emitting panel type luminaire, a hand operating means for emitting infrared light carrying an operation signal by manual operation, an infrared receiving section for receiving infrared light emitted from the hand operating means, and the infrared receiving A control unit that controls energization between the first electrode and the second electrode in response to an infrared operation signal received by the unit, the second electrode being made of a translucent material, A reflective material that reflects visible light emitted from the light emitting layer to the second electrode side is disposed on the opposite side of the two-electrode light emitting layer, and at least a part of the reflective material can transmit infrared rays. The infrared rays of this reflector are And it is characterized in that it said infrared receiver is provided on the over-moiety.

  Moreover, the light-emitting panel type lighting fixture according to claim 2 is the light-emitting panel type lighting fixture according to claim 1, wherein the reflecting material is configured to be capable of transmitting infrared rays as a whole. It is what.

  For example, as in the light-emitting panel type lighting fixture according to claim 3, in the light-emitting panel type lighting fixture according to claim 1 or 2, the reflecting material includes a reflecting plate in which a through hole is formed, and the reflecting plate. A reflection filter disposed in the through-hole of the first, and at least the reflection filter is configured to transmit infrared rays, and the infrared receiving unit is provided on the reflection filter. can do.

  According to the light-emitting panel type lighting fixture of claim 1, infrared rays radiated from the hand operating means are received by the infrared receiver, and between the first electrode and the second electrode according to the infrared operation signal. Since energization is controlled by the control unit, for example, the lighting device can be turned on / off, the brightness can be adjusted, and the like by the hand operating means. In addition, the second electrode is made of a translucent material, and the reflecting material disposed on the opposite side of the light emitting layer of the second electrode is configured so that at least a part thereof can transmit infrared rays. Since the infrared receiving part is provided on the part of the reflecting material that can transmit infrared rays, the infrared receiving part is hidden by the reflecting material and cannot be seen from the substrate side. It passes through the electrode, the light emitting layer, the second electrode, and the reflective material and reaches the infrared receiving unit. Therefore, it is possible to provide the infrared receiving unit while maintaining a good appearance and without reducing the light emitting area. In addition, visible light emitted from the light emitting layer to the second electrode side is totally reflected by the reflecting material and emitted from the substrate side, so that the luminance as illumination is not lowered.

  According to the light-emitting panel lighting device of claim 2, since the reflecting material is configured so that the entire infrared ray can be transmitted, heat generated in the light-emitting layer is transmitted through the reflecting material and dissipated into the atmosphere. Therefore, the temperature rise of the light emitting layer can be suppressed.

  Hereinafter, the best mode for carrying out the present invention will be described in detail with reference to the drawings.

  1 and 2 show a light-emitting panel type lighting fixture 1A according to an embodiment of the present invention. In the present embodiment, the horizontal direction in FIG. 1 will be described as the horizontal direction, and the vertical direction in FIG. 1 will be described as the vertical direction.

  The light-emitting panel type lighting fixture 1 </ b> A includes a substrate 2, a first electrode 3, a light-emitting layer 4, a second electrode 5, and a second electrode 5 that are stacked on the upper surface of the substrate 2. Layer 6.

  The substrate 2 is made of a transparent so-called translucent material such as glass, and has a square shape with a side of 30 cm, for example, in plan view. In addition, the shape of the board | substrate 2 does not need to be square shape by planar view, For example, rectangular shape, polygonal shape, circular shape etc. may be sufficient.

  The first electrode 3 serves as an anode, is made of a translucent material, and is provided in a region where the right end portion of the upper surface of the substrate 2 is left. The first electrode 3 can be formed by evaporating, for example, ITO (Indium Tin Oxide) or the like on the substrate 2.

  The light emitting layer 4 is provided so as to cover the first electrode 3 from above, leaving the left end portion of the first electrode 3. That is, the left end portion of the first electrode 3 protrudes leftward from the light emitting layer 4 and serves as the anode terminal portion 31.

The light emitting layer 4 includes at least a light emitting layer made of an organic material of a fluorescent material or an organic material containing a fluorescent material, and if necessary, a hole injection layer, a hole transport layer, an electron transport layer, and an electron injection layer Etc. More specifically, when the first electrode 3 and the second electrode 5 are also described, for example, the following layer structure is provided.
(1) (first electrode 3; anode) / light emitting layer / (second electrode 5; cathode)
(2) (first electrode 3; anode) / hole transport layer / light emitting layer / (second electrode 5; cathode)
(3) (first electrode 3; anode) / light emitting layer / electron transport layer / (second electrode 5; cathode)
(4) (first electrode 3; anode) / hole transport layer / light emitting layer / electron transport layer / (second electrode 5; cathode)
(5) (first electrode 3; anode) / hole injection layer / hole transport layer / light emitting layer / electron transport layer / electron injection layer / (second electrode 5; cathode)
The second electrode 5 serves as a cathode, is made of a translucent material, and is provided so as to continuously cover the right end portion of the light emitting layer 4 and the upper surface of the substrate 2 from above. The second electrode 5 can be formed, for example, by depositing ITO (Indium Tin Oxide) or the like on the light emitting layer 4 and the substrate 2. A portion of the second electrode 5 in contact with the right end portion of the upper surface of the substrate 2 is a cathode terminal portion 51.

  Since the first electrode 3 and the second electrode 5 are both made of the same material, the first electrode 3 may be a cathode and the second electrode 5 may be an anode.

  The sealing layer 6 is for hermetically sealing the portion excluding the anode terminal portion 31 of the first electrode 3, the light emitting layer 4, and the portion excluding the cathode terminal portion 51 of the second electrode 5 in cooperation with the substrate 2. For example, it is made of a translucent material such as glass. Specifically, the sealing layer 6 has a ceiling wall 61 that covers the upper surface of the second electrode 5, and a peripheral wall 62 that hangs down from the peripheral edge of the ceiling wall 61. The peripheral wall 62 is in contact with the substrate 2 while avoiding the anode terminal portion 31 and the cathode terminal portion 51, whereby the portion of the first electrode 3 excluding the anode terminal portion 31, the light emitting layer 4, and the second layer. A portion of the electrode 5 excluding the cathode terminal portion 51 is hermetically sealed by the substrate 2 and the sealing layer 6. The ceiling wall 61 and the peripheral wall 62 of the sealing layer 6 may be made of different materials. For example, the ceiling wall 61 may be made of a glass plate and the peripheral wall 62 may be made of a resin.

  Further, the portions exposed to the outside from the sealing layer 16 of the anode terminal portion 31 and the cathode terminal portion 51 are subjected to chrome plating, and the plating layers 11 and 12 as connection conductors are formed.

  Further, the light-emitting panel type lighting fixture 1A is joined to the upper surface of the sealing layer 6, thereby allowing the reflector 7 disposed on the opposite side of the second electrode 5 to the light-emitting layer 4 and the hand operation to emit infrared rays. Means 9, an infrared receiving unit 8 that receives infrared rays emitted from the hand operating unit 9, and a control unit 13 connected to the infrared receiving unit 8 are provided. In FIG. 1, the infrared receiver 8 is omitted.

  The reflective material 7 has substantially the same size as the upper surface of the sealing layer 6, and is disposed in the reflective plate 71 having a through hole 71 a formed in the approximate center thereof and the through hole 71 a of the reflective plate 71. And a reflection filter 72.

  The reflection plate 71 is a so-called cold mirror that reflects visible light but transmits infrared light. The through hole 71a has a square shape with a side of 2 cm, for example, in plan view.

  The reflection filter 72 is an interference filter (manufactured by Nippon Vacuum Optical Co., Ltd.) sized to fit in the through hole 71a without any gap, and reflects visible light but transmits infrared light. Specifically, the reflection filter 72 has a maximum transmittance with respect to an electromagnetic wave having a wavelength in the range of 950 to 1000 nm, and does not transmit substantially 100% of an electromagnetic wave having a wavelength of 880 nm or less. have.

  In other words, the entire reflecting material 7 reflects visible light and transmits infrared light. The visible light emitted from the light emitting layer 4 to the second electrode side is totally reflected by the reflecting material 7 as shown by an arrow a in FIG.

  The infrared receiving unit 8 is provided on the reflection filter 72 in the through hole 71 a of the reflection plate 71. As shown by the arrow b in FIG. 2, the visible light is reflected by the reflecting plate 71 and the reflecting filter 72, so that the infrared receiving unit 8 is not visible from the substrate 2 side.

  The hand operating means 9 is a so-called remote controller, and emits infrared rays carrying various operation signals such as lighting / extinguishing and brightness adjustment when operated manually.

  The control unit 13 has an unillustrated lighting circuit and is connected to the anode terminal unit 31 and the cathode terminal unit 51 via the plating layers 11 and 12, and operates the infrared rays received by the infrared reception unit 8. The energization between the first electrode 3 and the second electrode 5 is controlled according to the signal.

  Next, the operation point of the light-emitting panel type lighting fixture 1A of the present embodiment will be described.

  When the user manually operates the hand operation means 9 toward the substantially center of the substrate 2, as indicated by an arrow c in FIG. 2, infrared light carrying an operation signal is emitted from the hand operation means 9, and this hand operation means The infrared rays emitted from 9 pass through the substrate 2, the first electrode 3, the light emitting layer 4, the second electrode 5, the sealing layer 6, and the reflection filter 72, and reach the infrared receiving unit 8. As a result, the energization between the first electrode 3 and the second electrode 5 is controlled by the control unit 13, so that the user can turn on / off the lighting fixture, adjust the brightness, etc. with the hand operating means 9. can do.

  In the light-emitting panel type lighting apparatus 1A of the present embodiment, the second electrode 5 is made of a light-transmitting material, and a reflective material 7 capable of transmitting infrared light is disposed on the opposite side of the second electrode 5 from the light-emitting layer 4. Since the infrared receiving unit 8 is provided on the reflecting material 7, the infrared receiving unit 8 is hidden by the reflecting material 7 and cannot be seen from the substrate 2 side. Etc., and reaches the infrared receiver 8. Therefore, it is possible to provide the infrared receiving unit 8 while maintaining a good appearance and without reducing the light emitting area. Further, the visible light emitted from the light emitting layer 4 to the second electrode 5 side is totally reflected by the reflecting material 7 and emitted from the substrate 2 side, so that the luminance as illumination is not lowered.

  Here, it is conceivable to directly provide the infrared receiving unit 8 on the upper surface of the sealing layer 6 without providing the reflection filter 72. In this way, when the light emitting layer 4 is not emitting light, the infrared receiving unit 8 is provided. 8 can be seen through. On the other hand, in this embodiment, since the infrared receiving unit 8 is provided on the reflection filter 72, the infrared receiving unit 8 is not seen through even when the lighting fixture is turned off, and the aesthetic appearance when the lighting is turned off is also maintained. be able to.

  The reflecting material 7 is configured so that at least part of the reflecting material 7 can transmit infrared rays, and the infrared receiving unit 8 may be provided on a portion of the reflecting material 7 that can transmit infrared rays. For example, the reflecting plate 71 does not need to be able to transmit infrared rays. However, as in the present embodiment, if the reflecting plate 71 is capable of transmitting infrared light and the entire reflecting material 7 is capable of transmitting infrared light, as shown by an arrow d in FIG. Since the heat generated in the layer 4 passes through the reflector 7 and is dissipated into the atmosphere, the temperature rise of the light emitting layer 4 can be suppressed.

  Moreover, the reflective material 7 may be comprised only with the reflective filter 72 like the light emission panel type lighting fixture 1B of the modification shown in FIG.

  Furthermore, although not shown in the figure, for example, a thin film filter is masked at the center and Al or the like is evaporated, then the mask is removed, and an optical multilayer film is sequentially laminated on the removed portion of the mask. By doing so, it is also possible to constitute the reflector 7 having a portion capable of transmitting infrared rays at the center.

  Further, the sealing layer 6 can be omitted by bonding the reflecting material 7 directly to the upper surface of the second electrode 5 and filling the space between the peripheral portion of the reflecting material 7 and the substrate 2 with a resin or the like. .

It is a typical perspective view of the light emission panel type lighting fixture which concerns on one Embodiment of this invention. It is a block diagram of a light emission panel type lighting fixture. It is a block diagram of the light emission panel type lighting fixture of a modification. It is a block diagram of the conventional light emitting element.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1A, 1B Light emission panel type lighting fixture 2 Board | substrate 3 1st electrode 4 Light emission layer 5 2nd electrode 7 Reflective material 71 Reflection plate 71a Hole 72 Reflection filter 8 Infrared receiving part 9 Hand operating means 13 Control part

Claims (3)

A light-emitting panel type lighting device in which a first electrode, a light-emitting layer, and a second electrode are stacked on a substrate, and light is emitted from the substrate side,
Depending on the hand operating means that emits infrared light carrying an operation signal by being manually operated, an infrared receiving section that receives infrared light emitted from the hand operating means, and an infrared operation signal received by the infrared receiving section And a controller for controlling energization between the first electrode and the second electrode,
The second electrode is made of a light-transmitting material, and a reflective material that reflects visible light emitted from the light emitting layer to the second electrode side is disposed on the opposite side of the light emitting layer of the second electrode. Has been established,
The reflective material is configured so that at least a part thereof can transmit infrared rays, and the infrared receiving unit is provided on a portion of the reflective material that can transmit infrared rays. Panel lighting fixture.   2. The light-emitting panel lighting device according to claim 1, wherein the reflective material is configured to be able to transmit infrared rays as a whole.   The reflective material has a reflective plate in which a through hole is formed and a reflective filter disposed in the through hole of the reflective plate, and at least the reflective filter is configured to transmit infrared rays. The light-emitting panel illumination device according to claim 1, wherein the infrared receiver is provided on the reflection filter.

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