WO2017094816A1 - Power feed light emitting system, light emitting element panel, and power feed device - Google Patents
Power feed light emitting system, light emitting element panel, and power feed device Download PDFInfo
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- WO2017094816A1 WO2017094816A1 PCT/JP2016/085672 JP2016085672W WO2017094816A1 WO 2017094816 A1 WO2017094816 A1 WO 2017094816A1 JP 2016085672 W JP2016085672 W JP 2016085672W WO 2017094816 A1 WO2017094816 A1 WO 2017094816A1
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- organic electroluminescent
- light emitting
- electrode
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- 230000005684 electric field Effects 0.000 claims abstract description 15
- 230000008878 coupling Effects 0.000 claims abstract description 8
- 238000010168 coupling process Methods 0.000 claims abstract description 8
- 238000005859 coupling reaction Methods 0.000 claims abstract description 8
- 239000010410 layer Substances 0.000 claims description 78
- 239000002346 layers by function Substances 0.000 claims description 13
- 238000007789 sealing Methods 0.000 claims description 12
- 238000010586 diagram Methods 0.000 description 25
- 239000000758 substrate Substances 0.000 description 20
- 230000004048 modification Effects 0.000 description 18
- 238000012986 modification Methods 0.000 description 18
- 230000000694 effects Effects 0.000 description 16
- 230000002093 peripheral effect Effects 0.000 description 6
- 239000000463 material Substances 0.000 description 4
- 238000005401 electroluminescence Methods 0.000 description 2
- 230000003071 parasitic effect Effects 0.000 description 2
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 239000003990 capacitor Substances 0.000 description 1
- 238000005286 illumination Methods 0.000 description 1
- 230000001771 impaired effect Effects 0.000 description 1
- 239000011810 insulating material Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
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- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
- H10K50/00—Organic light-emitting devices
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B44/00—Circuit arrangements for operating electroluminescent light sources
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J50/00—Circuit arrangements or systems for wireless supply or distribution of electric power
- H02J50/05—Circuit arrangements or systems for wireless supply or distribution of electric power using capacitive coupling
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B33/00—Electroluminescent light sources
- H05B33/02—Details
- H05B33/04—Sealing arrangements, e.g. against humidity
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B33/00—Electroluminescent light sources
- H05B33/02—Details
- H05B33/06—Electrode terminals
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B20/00—Energy efficient lighting technologies, e.g. halogen lamps or gas discharge lamps
- Y02B20/30—Semiconductor lamps, e.g. solid state lamps [SSL] light emitting diodes [LED] or organic LED [OLED]
Definitions
- the present invention relates to a power feeding light emitting system, a light emitting element panel, and a power feeding device, and in particular, a power feeding light emitting system for emitting light by wireless power feeding to a light emitting element panel using an organic electroluminescent element, and a light emitting element panel used for the same And a power supply apparatus.
- Wireless power supply systems are attracting attention in small electronic devices such as mobile phones and portable music players.
- a wireless power feeding system for example, by placing a power receiving device such as a mobile phone on a plate of the power feeding device, power is supplied to the power receiving device without connecting the power feeding device and the power receiving device to each other with a cable or the like. It is possible.
- the power feeding device includes a power feeding coil portion on the power feeding surface
- the power receiving device includes a power receiving coil portion corresponding thereto, and transmits power from the power feeding device to the power receiving device side by magnetic coupling.
- a configuration is disclosed (for example, see Patent Document 1 below).
- a light emitting element panel using an organic electroluminescent element has attracted attention as an apparatus for use in image display and illumination.
- the organic electroluminescent element has a configuration in which an organic light emitting functional layer is sandwiched between an anode layer and a cathode layer, and is advantageous for thinning the panel.
- the above-described wireless power feeding system using magnetic coupling is applied to such a light emitting element panel, there is a problem that the thinning of the panel is impaired by the power receiving coil.
- an object of the present invention is to provide a power feeding light emitting system capable of maintaining a thin light emitting element panel, a light emitting element panel used in the power feeding light emitting system, and a power feeding apparatus.
- the present invention provides a light emitting element panel having an organic electroluminescent element in which an organic light emitting functional layer is sandwiched between a pair of electrodes, and a power supply apparatus having a power supply electrode connected to an AC power source.
- the light-emitting element panel includes a pair of power receiving electrodes composed of an electrode layer connected to the pair of electrodes, and the power feeding device includes the power feeding electrodes arranged corresponding to the power receiving electrodes.
- the power supply light emitting system supplies electric power to the organic electroluminescent element by electric field coupling between a power receiving electrode and the power supply electrode.
- a power feeding light emitting system capable of maintaining a thin light emitting element panel, a light emitting element panel used in the power feeding light emitting system, and a power feeding apparatus.
- FIG. 1 is a circuit diagram showing a power feeding light emitting system 1 of the first embodiment.
- FIG. 2 is a schematic cross-sectional view showing the power feeding light emitting system 1 of the first embodiment.
- the power feeding light emitting system 1 shown in these drawings is a system for performing wireless power feeding to the light emitting element panel 10 using the organic electroluminescent element EL, and is configured by the light emitting element panel 10 and the power feeding device 100. .
- details of these components will be described, and then power supply by the power supply light emitting system 1 will be described.
- FIG. 3 is a schematic plan view of the light emitting element panel 10 used in the power feeding light emitting system 1 of the first embodiment
- FIG. 2 is a schematic cross sectional view corresponding to the AA cross section of FIG.
- the light emitting element panel 10 according to the first embodiment shown in FIGS. 1 to 3 includes an organic electroluminescent element EL and a pair of power receiving electrodes ELa taken out from the organic electroluminescent element EL on one main surface of the transparent substrate 11. , ELb.
- the organic electroluminescent element EL is sealed between the transparent substrate 11, the sealing layer 15, and the shield layer 16.
- Organic electroluminescent element EL has a configuration in which a transparent electrode 12, an organic light emitting functional layer 13, and a counter electrode 14 are laminated in order from the transparent substrate 11 side.
- the transparent electrode 12 and the counter electrode 14 which are a pair of electrodes are insulated by the organic light emitting functional layer 13 sandwiched between them.
- Such an organic electroluminescent element EL has a parasitic capacitance Cel.
- the transparent electrode 12 and the counter electrode 14 are electrode layers in which either one is used as an anode and the other is used as a cathode with respect to the organic light emitting functional layer 13.
- the transparent electrode 12 is described as an anode
- the counter electrode 14 is configured as a cathode.
- the transparent electrode 12 and the counter electrode 14 are extended from the organic electroluminescent element EL to the peripheral side of the transparent substrate 11 as terminals 12a and 14a.
- the transparent electrode 12 may be connected to a terminal 12a made of a separate electrode layer made of a material having higher conductivity.
- the organic electroluminescent element EL having the above configuration, a portion where the organic light emitting functional layer 13 is sandwiched between the transparent electrode 12 and the counter electrode 14 becomes a light emitting region, and light generated in this light emitting region is transparent electrode 12. Then, the light passes through the transparent substrate 11 and is taken out to the outside.
- the power receiving electrodes ELa and ELb are exposed from the shield layer 16 described below, among the terminals 12a and 14a extending from the transparent electrode 12 and the counter electrode 14 of the organic electroluminescent element EL to the peripheral side of the transparent substrate 11. It is constituted by the part which is. As shown in the schematic plan view of FIG. 3, these power receiving electrodes ELa and ELb preferably have the same area in plan view. For example, a pair of power receiving electrodes ELa and ELb on the transparent substrate 11. Are arranged in parallel.
- the sealing layer 15 is provided so as to cover the organic light emitting functional layer 13 of the organic electroluminescent element EL.
- This sealing layer 15 should just be comprised by the insulating material at least for the lowest layer so that the transparent electrode 12 and the counter electrode 14 may not be short-circuited.
- the sealing layer 15 may be provided covering power receiving electrode ELa and ELb.
- the shield layer 16 is an electromagnetic wave shielding layer provided on the organic electroluminescent element EL via the sealing layer 15.
- the shield layer 16 is provided in a state in which the power receiving electrodes ELa and ELb are exposed, and portions of the terminals 12a and 14a that are not covered with the shield layer 16 become the power receiving electrodes ELa and ELb.
- the shield layer 16 as described above may constitute a part of the sealing layer 15.
- the film is made of a metal film material such as aluminum.
- FIG. 4 is a schematic plan view of the power supply apparatus 100 used in the power supply light emitting system 1 of the first embodiment.
- the power supply device 100 according to the first embodiment shown in FIGS. 1, 2, and 4 is used in combination with the light-emitting element panel 10 described above.
- the power supply device 100 includes a device base 100a, an AC power supply 101, a matching circuit 103, and a pair of power supply electrodes 105a and 105b.
- the device base 100a has a mounting surface large enough to mount the light emitting element panel 10 when power is supplied to the light emitting element panel 10.
- An AC power supply 101 and a matching circuit 103 are mounted on the apparatus base 100a, and power supply electrodes 105a and 105b are disposed on the mounting surface.
- the AC power supply 101 is a high frequency (RF) power supply of 13.56 MHz, for example, and has a ground side electrode and a hot side electrode.
- RF radio frequency
- the matching circuit 103 (see FIG. 1) is provided between the AC power source 101 and a pair of power supply electrodes 105a and 105b connected to the AC power source 101.
- the matching circuit 103 is an impedance matching circuit for matching the characteristic impedance of the transmission line and the circuit impedance of the power supply electrodes 105a and 105b and the subsequent circuits. As shown in FIG. 1, for example, two capacitors C1 and C2 and one And an inductor L.
- the power supply electrodes 105a and 105 b are connected to both electrodes of the AC power supply 101 through the matching circuit 103. These power supply electrodes 105a and 105b are a hot-side electrode (hot-side power supply electrode 105a) and an earth-side electrode (ground-side power supply electrode 105b) of the AC power supply 101.
- the hot-side power supply electrode 105a and the ground-side power supply electrode 105b correspond to the power reception electrodes ELa and ELb of the light-emitting element panel 10 and are provided on the mounting surface of the apparatus base 100a while being parallel to each other. .
- the power supply electrodes 105a and 105b are arranged in parallel at an arrangement pitch that is approximately the same as the arrangement pitch of the power receiving electrodes ELa and ELb.
- the power supply electrodes 105a and 105b preferably have the same width and area in plan view, but are not limited thereto.
- the AC power supply 101 of the power supply apparatus 100 is turned on.
- the power supply electrodes 105 a and 105 b of the power supply device 100 and the power reception electrodes ELa and ELb of the light emitting element panel 10 face each other on the device base 100 a of the power supply device 100.
- the light emitting element panel 10 is mounted.
- FIG. 5 is a graph showing the light emission characteristics in the power feeding light emitting system 1, where the horizontal axis represents time [t] and the vertical axis represents light emission intensity [I].
- the organic electroluminescent element EL emits light when the supply of voltage from the AC power supply 101 is forward with respect to the organic electroluminescent element EL.
- the power feeding light emitting system 1, the light emitting element panel 10, and the power feeding apparatus 100 according to the first embodiment described above have the transparent electrodes 12 and the terminals 12 a and 14 a of the counter electrode 14 constituting the organic electroluminescent element EL as power receiving electrodes ELa and ELb.
- the organic electroluminescent element EL emits light by wireless power feeding using electric field coupling. For this reason, it is not necessary to provide a coil or the like on the light emitting element panel 10 side and the power feeding device 100 side, and the light emitting element panel 10 and the power feeding device 100 can be thinned, and further, the power feeding light emitting system 1 can be kept thin. It is.
- FIG. 6 is a schematic plan view illustrating a modification of the power feeding light emitting system 1 of the first embodiment.
- a power feeding light emitting system 1 ′ of the modification shown in FIG. 6 is characterized by the configuration of the power feeding apparatus 100 ′.
- the power supply device 100 ′ has a configuration in which a plurality of hot-side power supply electrodes 105a and ground-side power supply electrodes 105b are alternately arranged on the device base 100a.
- the configurations of the AC power supply 101 and the matching circuit 103 are the first. This is the same as the embodiment.
- the power feeding electrodes 105a and 105b are arranged in parallel at an arrangement pitch similar to the arrangement pitch of the power receiving electrodes ELa and ELb.
- the power supply electrodes 105a and 105b preferably have the same width and area in plan view, but are not limited thereto.
- the power receiving device 100 ′ is configured such that the power receiving electrodes ELa and ELb correspond one-to-one with the power feeding electrodes 105a and 105b of the power feeding device 100 ′. Place on top. Thereby, these several light emitting element panels 10 can be light-emitted.
- the power receiving electrodes ELa and ELb do not correspond one-to-one with the power feeding electrodes 105a and 105b of the power feeding device 100 ′ as in the light emitting element panels 10c and 10d, the light emitting elements on the power feeding device 100 ′.
- the panels 10c and 10d do not emit light.
- FIG. 7 is a circuit diagram showing the power feeding light emitting system 2 of the second embodiment.
- the power feeding light emitting system 2 shown in this figure is different from the power feeding light emitting system 1 described with reference to FIG. 1 in the configuration of the light emitting element panel 20, and the other configurations are the same. For this reason, the structure of the light emitting element panel 20 is demonstrated here.
- FIG. 8 is a schematic plan view of the light emitting element panel 20 used in the power feeding light emitting system 2 of the second embodiment.
- the light emitting element panel 20 of the second embodiment shown in FIGS. 7 and 8 is taken out from the two organic electroluminescent elements EL1, EL2 and the organic electroluminescent elements EL1, EL2 on one main surface of the transparent substrate 11. And a pair of power receiving electrodes ELa and ELb.
- the organic electroluminescent elements EL1 and EL2 are sealed between the transparent substrate 11, the sealing layer 15 and the shield layer 16, as in the first embodiment.
- Each of the organic electroluminescent elements EL1 and EL2 has the same stacked configuration as the organic electroluminescent element EL described in the first embodiment, and in order from the transparent substrate 11 side, the transparent electrode 12, the organic light emitting functional layer 13, and the counter electrode In this configuration, the electrodes 14 are stacked.
- the transparent electrode 12 and the counter electrode 14 are arranged in a state of being insulated by the organic light emitting functional layer 13 and have a parasitic capacitance Cel.
- These organic electroluminescent elements EL1, EL2 are provided in a connected state. That is, as shown in the circuit diagram of FIG. 7, the anode of the organic electroluminescent element EL1 and the cathode of the organic electroluminescent element EL2 are connected, and one of the two power receiving electrodes ELa and ELb, here the power receiving electrode. Connected to ELa. Further, the cathode of the organic electroluminescent element EL1 and the anode of the organic electroluminescent element EL2 are connected to one of the two power receiving electrodes ELa and ELb, here, the power receiving electrode ELb.
- one of the transparent electrode 12 and the counter electrode 14 of these organic electroluminescent elements EL1 and EL2 is used as an anode and the other is used as a cathode.
- each transparent electrode 12 is configured as an anode and the counter electrode 14 is configured as a cathode.
- the transparent electrode 12 of the organic electroluminescent element EL1 and the counter electrode 14 of the organic electroluminescent element EL2 are connected. Further, the counter electrode 14 of the organic electroluminescent element EL1 and the transparent electrode 12 of the organic electroluminescent element EL2 are connected.
- the AA cross section of FIG. 8 is the same as FIG. 2 described in the first embodiment.
- the transparent electrode 12 and the counter electrode 14 of the organic electroluminescent elements EL1 and EL2 as described above are drawn out as terminals 12a and 14a on the peripheral side of the transparent substrate 11, and each transparent electrode 12 has a more conductive property. It is the same as that of 1st Embodiment that the separate terminal 12a comprised with the high material may be connected.
- the power receiving electrodes ELa and ELb are exposed from the shield layer 16 among the terminals 12 a and 14 a extending from the transparent electrode 12 and the counter electrode 14 of the organic electroluminescent elements EL 1 and EL 2 to the peripheral side of the transparent substrate 11. It is preferable to be configured by the portions and to have the same area in a plan view. For example, they are arranged in parallel on the transparent substrate 11 as in the first embodiment.
- the anode of the organic electroluminescent element EL1 in the connected state and the cathode of the organic electroluminescent element EL2 constitute one power receiving electrode ELa, and the cathode and the organic electroluminescent element of the organic electroluminescent element EL1 in the connected state
- the anode of EL2 constitutes the other power receiving electrode ELb.
- an electric field E is generated between the power feeding electrodes 105a and 105b of the power feeding device 100 and the power receiving electrodes ELa and ELb of the light emitting element panel 20, and a forward electric field is applied to each of the organic electroluminescent elements EL1 and EL2.
- the organic electroluminescent elements EL1 and EL2 emit light.
- the organic electroluminescent element EL1 and the organic electroluminescent element EL2 have a configuration in which an anode and a cathode are connected in opposite directions with respect to the power receiving electrodes ELa and ELb. For this reason, these organic electroluminescent elements EL1 and EL2 emit light alternately.
- FIG. 9 is a graph showing light emission characteristics in the power feeding light emitting system 1, where the horizontal axis represents time [t] and the vertical axis represents light emission intensity [I]. As shown in FIG. 9, in the feeding light emitting system 2, the organic electroluminescent elements EL1 and EL2 alternately emit light at a period of 13.56 MHz.
- the power feeding light emitting system 2, the light emitting element panel 20, and the power feeding apparatus 100 according to the second embodiment described above are configured so that the transparent electrodes 12 and the terminals 12 a and 14 a of the counter electrode 14 constituting the organic electroluminescent elements EL 1 and EL 2 are used as power receiving electrodes.
- ELa and ELb are used.
- the organic electroluminescent elements EL1, EL2 are connected in the opposite direction with respect to the power receiving electrodes ELa, ELb, the organic electroluminescence elements EL1, EL2
- the electroluminescent elements EL1 and EL2 can emit light alternately. For this reason, light emission using the electric power supplied from the AC power supply 101 efficiently is possible.
- FIG. 10 is a schematic cross-sectional view illustrating a modified example of the power feeding light emitting system of the second embodiment.
- FIG. 11 is a schematic plan view showing a modification of the light emitting element panel used in the power feeding light emitting system of the second embodiment.
- FIG. 10 is a schematic cross-sectional view of a portion corresponding to the AA cross section in FIG.
- the power supply light emitting system 2 ′ shown in these drawings is a modification of the second embodiment described with reference to FIGS. 7 and 8, and is characterized by the configuration of the light emitting element panel 20 ′.
- the terminal 12a and the shield layer 16 constitute the power receiving electrodes ELa ′′ and ELb ′′.
- the shield layer 16 has a shape that covers the organic electroluminescent elements EL1 and EL2 independently, and a shape that covers each of the terminals 14a drawn from the counter electrode 14.
- Power feeding to the light emitting element panel 20 ′ in the power feeding light emitting system 2 ′ configured by the light emitting element panel 20 ′ and the power feeding apparatus 100 configured as described above is performed in the same manner as in the first embodiment. That is, the AC power supply 101 of the power supply apparatus 100 is turned on. Then, as shown in FIG. 10, the device base 100 a of the power feeding device 100 so that the power feeding electrodes 105 a and 105 b of the power feeding device 100 and the power receiving electrodes ELa ′′ and ELb ′′ of the light emitting element panel 50 face each other one-on-one. The light emitting element panel 20 ′ is placed thereon.
- the power feeding light emitting system 2 ′, the light emitting element panel 20 ′, and the power feeding apparatus 100 according to the modification of the second embodiment described above are terminals for connecting the two organic electroluminescent elements EL1 and EL2 in the light emitting element panel 20 ′. 12a and 14a and the shield layer 16 are connected to form power receiving electrodes ELa ′′ and ELb ′′. Therefore, the electrode surfaces of the power receiving electrodes ELa ′′ and ELb ′′ of the light emitting element panel 50 can be widened to increase the intensity of the electric field E generated between the power receiving electrodes ELa ′′ and ELb ′′ and the power feeding electrodes 105a and 105b. As a result, the organic electroluminescent elements EL1 and EL2 can emit light with high luminance.
- FIG. 12 is a circuit diagram showing a power feeding light emitting system 3 of the third embodiment.
- the power feeding light emitting system 3 shown in this figure is different from the power feeding light emitting system 1 described with reference to FIG. 1 in the configuration of the light emitting element panel 30, and the other configurations are the same. For this reason, the structure of the light emitting element panel 30 is demonstrated here.
- FIG. 13 is a schematic plan view of the light emitting element panel 30 used in the power feeding light emitting system 3 of the third embodiment.
- the light emitting element panel 30 of the third embodiment shown in FIGS. 12 and 13 includes two diodes D1 and D2 in addition to the organic electroluminescent element EL. Further, it is characteristic that one of the pair of power receiving electrodes ELa and ELb ′ taken out from the organic electroluminescent element EL is configured as an electrode layer separate from the organic electroluminescent element EL. Since the configuration of the organic electroluminescent element EL is the same as that of the first embodiment, the power receiving electrodes ELa and ELb ′ and the two diodes D1 and D2 will be described here.
- Electrodes ELa, ELb ′ Either one of the power receiving electrodes ELa and ELb ′ is constituted by one terminal extending from the transparent electrode 12 or the counter electrode 14 of the organic electroluminescent element EL toward the peripheral side of the transparent substrate 11.
- the power receiving electrode ELa is configured by a portion exposed from the shield layer 16 in the terminal 12 a drawn out from the transparent electrode 12.
- either one of the power receiving electrodes ELa and ELb ′ is connected to the other terminal extending from the transparent electrode 12 or the counter electrode 14 of the organic electroluminescent element EL to the peripheral side of the transparent substrate 11 via the diode D1. It is comprised by the electrode layer part made.
- the power receiving electrode ELb ' is configured by an electrode layer connected to the terminal 14a drawn from the counter electrode 14 via the diode D1.
- Such a power receiving electrode ELb ' is formed as a pattern as an electrode layer on the transparent substrate 11 provided with the organic electroluminescent element EL.
- These power receiving electrodes ELa and ELb ' preferably have the same area in plan view. Further, the terminal 14a drawn from the counter electrode 14 of the organic electroluminescent element EL is not used as a power receiving electrode. For this reason, it is preferable that the shield layer 16 has a shape covering the terminal 14a drawn from the counter electrode 14 of the organic electroluminescent element EL.
- the diodes D1 and D2 constituting the light emitting element panel 30 are disposed between the organic electroluminescent element EL and the two power receiving electrodes ELa and ELb ′.
- one diode D1 is provided between the cathode formed by the counter electrode 14 of the organic electroluminescent element EL and the power receiving electrode ELb ′ so as to be connected in the forward direction to the organic electroluminescent element EL. It has been.
- the other diode D2 is provided between the two power receiving electrodes ELa and ELb ′ in a state of being connected to the organic electroluminescent element EL and the diode D1 in the forward direction.
- the diodes D1 and D2 as described above are Schottky diodes, and are connected to the organic electroluminescent element EL and the two power receiving electrodes ELa and ELb ′ by a wiring layer formed on the transparent substrate 11. It has become.
- the diodes D1 and D2 may be formed on the transparent substrate 11 provided with the organic electroluminescent element EL, and may be external to the transparent substrate 11 provided with the organic electroluminescent element EL. It may be attached.
- Power feeding to the light emitting element panel 30 in the power feeding light emitting system 3 configured by the light emitting element panel 30 and the power feeding apparatus 100 configured as described above is performed in the same manner as in the first embodiment. That is, the AC power supply 101 of the power supply apparatus 100 is turned on. Then, as shown in FIG. 12, the power supply electrodes 105a and 105b of the power supply device 100 and the power receiving electrodes ELa and ELb ′ of the light emitting element panel 30 face each other on the device base 100a of the power supply device 100. The light emitting element panel 30 is placed on the surface.
- the power supply light emitting system 3, the light emitting element panel 30, and the power supply apparatus 100 of the third embodiment described above are the rectifier circuit in which the organic electroluminescent element EL is configured by two diodes D1 and D2 in the configuration of the first embodiment. It is the structure built in. For this reason, in addition to the effect of 1st Embodiment, the effect which enables the light emission which used the electric power supplied from AC power supply 101 efficiently can be acquired.
- FIG. 14 is a circuit diagram showing a power feeding light emitting system 4 of the fourth embodiment.
- the power supply light emitting system 4 shown in this figure is a modification of the third embodiment described with reference to FIG. 12, and includes a light emitting element panel 40 provided with two organic electroluminescent elements EL1 and EL2. Other configurations are the same as those of the third embodiment. For this reason, the structure of the light emitting element panel 40 is demonstrated here.
- FIG. 15 is a schematic plan view of the light emitting element panel 40 used in the power feeding light emitting system 4 of the fourth embodiment.
- the light emitting element panel 40 of 4th Embodiment shown in FIG.14 and FIG.15 is provided with two organic electroluminescent elements EL1 and EL2, and two diodes D1 and D2.
- the configuration of the organic electroluminescent elements EL1 and EL2 is the same as that of the organic electroluminescent element EL described in the first embodiment.
- the two diodes D1 and D2 have the same configuration as the diodes D1 and D2 described in the third embodiment.
- these organic electroluminescent elements EL1 and EL2 and diodes D1 and D2 are connected by a wiring layer formed on the transparent electrode 11 so as to constitute a rectifier circuit. That is, the organic electroluminescent elements EL1 and EL2 and the diodes D1 and D2 form a rectifier circuit by connecting the two organic electroluminescent elements EL1 and EL2 in series in the forward direction with the diodes D1 and D2. Specifically, a diode D2 is connected in series in the forward direction between the anode of the organic electroluminescent element EL1 and the cathode of the organic electroluminescent element EL2. A diode D1 is connected in series in the forward direction between the cathode of the organic electroluminescent element EL2 and the anode of the organic electroluminescent element EL1.
- the anode of the organic electroluminescent element EL1 and the cathode of the diode D2 are used as one power receiving electrode ELa.
- the anode of the organic electroluminescent element EL2 and the cathode of the diode D1 are used as the other power receiving electrode ELb.
- the terminals 12a drawn from the transparent electrodes 12 of the organic electroluminescent elements EL1 and EL2 are exposed from the shield layer 16.
- the power receiving electrodes ELa and ELb are configured by the portions.
- these power receiving electrodes ELa and ELb have the same area in plan view.
- the terminal 14a drawn from the counter electrode 14 of the organic electroluminescent elements EL1, EL2 is not used as a power receiving electrode.
- the shield layer 16 has a shape covering the terminals 14a drawn from the counter electrodes 14 of the organic electroluminescent elements EL1 and EL2.
- Power feeding to the light emitting element panel 40 in the power feeding light emitting system 4 configured by the light emitting element panel 40 and the power feeding device 100 configured as described above is performed in the same manner as in the first embodiment. That is, the AC power supply 101 of the power supply apparatus 100 is turned on. Then, as shown in FIG. 14, the power supply electrodes 105 a and 105 b of the power supply device 100 and the power receiving electrodes ELa and ELb of the light emitting element panel 40 are placed on the device base 100 a of the power supply device 100 so as to face each other one-on-one. The light emitting element panel 40 is mounted.
- the feed light emitting system 4, the light emitting element panel 40, and the feed device 100 of the fourth embodiment described above constitute a rectifier circuit with two organic electroluminescent elements EL 1 and EL 2 and two diodes D 1 and D 2. For this reason, as in the third embodiment, it is possible to obtain an effect of enabling light emission that efficiently uses the power supplied from the AC power supply 101, and further, compared with the power supply light emitting system 3 of the third embodiment. Thus, high luminance light emission can be obtained in total of the organic electroluminescent elements EL1 and EL2.
- FIG. 16 is a circuit diagram illustrating a modification of the power feeding light emitting system 4 of the fourth embodiment.
- the power feeding light emitting system 4 ′ of the modification shown in FIG. 16 has a configuration in which the cathode electrodes of the two organic electroluminescent elements EL1 and EL2 are power receiving electrodes ELa and ELb.
- the organic electroluminescent elements EL1 and EL2 and the diodes D1 and D2 constitute a rectifier circuit by connecting the two organic electroluminescent elements EL1 and EL2 in series in the forward direction with the diodes D1 and D2. This is the same as in the fourth embodiment.
- FIG. 17 is a schematic cross-sectional view showing the power feeding light emitting system 5 of the fifth embodiment.
- FIG. 18 is a schematic plan view of the light emitting element panel 50 used in the power feeding light emitting system 5 of the fifth embodiment.
- FIG. 17 is a schematic sectional view of a portion corresponding to the AA section in FIG.
- the power supply light emitting system 5 shown in these drawings is a modification of the fourth embodiment described with reference to FIGS. 14 and 15, and is characterized in the configuration of the light emitting element panel 50.
- the terminal 12a (anode) of the transparent electrode 12 in the two organic electroluminescent elements EL1 and EL2 is provided on the shield layer 16 provided independently for each of the organic electroluminescent elements EL1 and EL2. It is connected.
- the terminal 12a and the shield layer 16 constitute the power receiving electrodes ELa ′′ and ELb ′′.
- the shield layer 16 preferably has a shape that independently covers the organic electroluminescent elements EL1 and EL2, and a shape that covers each of the terminals 14a drawn from the counter electrode 14.
- ⁇ Power supply by power supply light emitting system 5> The power feeding to the light emitting element panel 50 in the power feeding light emitting system 5 configured by the light emitting element panel 50 and the power feeding device 100 configured as described above is performed in the same manner as in the first embodiment. That is, the AC power supply 101 of the power supply apparatus 100 is turned on. Then, as shown in FIG. 17, the device base 100 a of the power feeding device 100 so that the power feeding electrodes 105 a and 105 b of the power feeding device 100 and the power receiving electrodes ELa ′′ and ELb ′′ of the light emitting element panel 50 face each other one to one. The light emitting element panel 50 is mounted thereon.
- continuous light emission can be obtained continuously from the two organic electroluminescent elements EL1, EL2.
- the power feeding light emitting system 5, the light emitting element panel 50, and the power feeding apparatus 100 according to the fifth embodiment described above are configured as the power receiving electrodes ELa ′′ and ELb ′′ by connecting the terminal 12 a and the shield layer 16 in the light emitting element panel 50. It is. Therefore, the electrode surfaces of the power receiving electrodes ELa ′′ and ELb ′′ of the light emitting element panel 50 can be widened to increase the intensity of the electric field E generated between the power receiving electrodes ELa ′′ and ELb ′′ and the power feeding electrodes 105a and 105b. As a result, the organic electroluminescent elements EL1 and EL2 can emit light with high luminance.
- FIG. 19 is a schematic plan view illustrating the power feeding light emitting system 6 of the sixth embodiment.
- the feeding light emitting system 6 of the sixth embodiment shown in this figure is different from the feeding light emitting system 1 described with reference to FIG. 1 in the configuration of the light emitting element panel 60 and the configuration of the feeding device 100 ′′.
- the configuration of the element panel 60 and the configuration of the power supply apparatus 100 ′′ corresponding thereto will be described.
- the light emitting element panel 60 of the sixth embodiment shown in FIG. 19 includes two organic electroluminescent elements EL1 and EL2 and four diodes D1 to D4.
- the configuration of the organic electroluminescent elements EL1 and EL2 is the same as that of the organic electroluminescent element EL described in the first embodiment.
- the four diodes D1 to D4 have the same configuration as the diodes D1 and D2 described in the third embodiment.
- the organic electroluminescent elements EL1 and EL2 and the diodes D1 to D4 are connected by a wiring layer formed on the transparent electrode 11 so as to constitute a rectifier circuit. That is, the organic electroluminescent elements EL1 and EL2 and the diodes D1 to D4 form a rectifier circuit by connecting the two organic electroluminescent elements EL1 and EL2 in series in the forward direction by the diodes D1 to D4.
- two diodes D1 and D2 are connected in series in the forward direction between the anode of the organic electroluminescent element EL1 and the cathode of the organic electroluminescent element EL2.
- two diodes D3 and D4 are connected in series in the forward direction between the cathode of the organic electroluminescent element EL1 and the anode of the organic electroluminescent element EL2.
- the electrode layers connected to the anodes of the organic electroluminescent elements EL1 and EL2 constitute power receiving electrodes ELa and ELc. Further, the electrode layer connected between the two diodes D1 and D2 constitutes the power receiving electrode ELb, and the electrode layer connected between the other two diodes D3 and D4 constitutes the power receiving electrode ELd.
- the pair of power receiving electrodes corresponding to the hot-side power feeding electrode 105a and the ground-side power feeding electrode 105b provided in the power feeding device 100 ′′ is divided into four power receiving electrodes ELa to ELd.
- These power receiving electrodes ELa to ELd are composed of electrode layers having the same width in one direction and are arranged in one direction.
- the arrangement state is such that the power receiving electrodes ELa and ELc connected to the anodes of the organic electroluminescent elements EL1 and EL2 and the power receiving electrodes ELb and ELd connected between the two diodes D1 and D2 and between the diodes D3 and D4.
- the power receiving electrodes ELa to ELd are arranged in one direction is shown.
- these power receiving electrodes ELa to ELd may be arranged so as to be shifted in one direction, and depending on the layout of the element, They may be arranged shifted in multiple directions.
- a power supply device 100 ′′ shown in FIG. 19 has a configuration in which a plurality of hot-side power supply electrodes 105a and ground-side power supply electrodes 105b are alternately arranged on a device base 100a.
- the configuration is the same as in the first embodiment.
- each of the power supply electrodes 105a and 105b preferably has an equal width in plan view.
- Power feeding to the light emitting element panel 60 in the power feeding light emitting system 6 including the light emitting element panel 60 and the power feeding device 100 ′′ configured as described above is performed in the same manner as in the first embodiment. That is, the power feeding device 100 ′′.
- the AC power supply 101 is turned on.
- the light emitting element panel 60 is mounted on the apparatus base
- the arrangement direction of the power feeding electrodes 105a and 105b in the power feeding device 100 ′′ and the arrangement direction of the power receiving electrodes ELa to ELd in the light emitting element panel 60 are matched.
- An electric field E is generated between the electrodes 105a and 105b and the power receiving electrodes ELa to Ed of the light emitting element panel 60, and any of the organic electroluminescent elements EL1 and EL2 is selected in accordance with the period of the AC voltage supplied from the AC power supply 101.
- light emission occurs when a forward current flows.
- FIG. 19 shows, for example, a state in which minus ( ⁇ ) is applied to the hot-side power supply electrode 105a and (+) is applied to the ground-side power supply electrode 105b.
- a current flows through the rectifier circuit along a route indicated by a broken line in the figure, and organic electroluminescence Either one of the elements EL1 and EL2 emits light.
- current may flow in addition to the route indicated by the broken line in the figure, but the discharge continues in the route indicated by the broken line having higher resistance due to the difference in resistance between the routes.
- Current route For example, in the case of the display element panel 60b, a current also flows between the power receiving electrode ELc and the power receiving electrode ELd. In the case of the display element panel 60d, a current also flows between the power receiving electrode ELa and the power receiving electrode ELb. However, since these current routes have smaller resistance than the route indicated by the broken line, the discharge ends earlier and the current does not flow.
- FIG. 20 is a schematic plan view illustrating the power feeding light emitting system 7 of the seventh embodiment.
- the feeding light emitting system 7 of the seventh embodiment shown in this figure is different from the feeding light emitting system 6 of the sixth embodiment described with reference to FIG. 19 in that only one organic electroluminescent element EL is provided in the light emitting element panel 70.
- the other configuration is the same as that of the sixth embodiment. For this reason, the structure of the light emitting element panel 70 is demonstrated here.
- the light emitting element panel 70 according to the seventh embodiment shown in FIG. 20 includes one organic electroluminescent element EL and four diodes D1 to D4.
- the configuration of the organic electroluminescent element EL is the same as that of the organic electroluminescent element EL described in the first embodiment.
- the four diodes D1 to D4 have the same configuration as the diodes D1 and D2 described in the third embodiment.
- a rectifier circuit is configured by serially connecting a pair of electrodes of the organic electroluminescent element EL, that is, an anode and a cathode in series in the forward direction by the diodes D1 to D4.
- the four electrode layers connected between the diodes D1 to D4 constitute the power receiving electrodes ELa to ELd.
- the pair of power receiving electrodes corresponding to the hot-side power feeding electrode 105a and the ground-side power feeding electrode 105b provided in the power feeding apparatus 100 ′′ is divided into four power receiving electrodes ELa to ELd.
- One of the two electrode layers is either the anode or the cathode of the organic electroluminescent element EL, and is the anode in the illustrated example.
- These power receiving electrodes ELa to ELd are composed of electrode layers having the same width in one direction and are arranged in one direction.
- the arrangement state includes a power receiving electrode ELc connected to the cathode of the organic electroluminescent element EL, and a power receiving electrode ELb connected between the two diodes D1 and D2 connected to the anode side of the organic electroluminescent element EL.
- the electrodes are arranged in one direction so as to be sandwiched between the other power receiving electrodes ELa and ELd.
- the configuration is shown in which the power receiving electrodes ELa to ELd are arranged in one direction.
- the power receiving electrodes ELa to ELd may be arranged so as to be shifted in one direction, depending on the element layout. Alternatively, they may be arranged so as to be shifted in multiple directions.
- FIG. 21 is a schematic plan view illustrating the power feeding light emitting system 8 of the eighth embodiment.
- the feeding light emitting system 8 of the eighth embodiment shown in this figure is different from the feeding light emitting system 6 of the sixth embodiment described with reference to FIG. 19 in that the light emitting element panel 80 includes two organic electroluminescent elements EL1, EL2.
- the two diodes D1 and D2 are provided, and the other configuration is the same as that of the sixth embodiment. For this reason, the structure of the light emitting element panel 80 is demonstrated here.
- the light emitting element panel 80 according to the eighth embodiment shown in FIG. 21 includes two organic electroluminescent elements EL1 and EL2 and two diodes D1 and D2.
- the configuration of the organic electroluminescent elements EL1, E2 is the same as that of the organic electroluminescent element EL described in the first embodiment.
- the two diodes D1 and D2 have the same configuration as the diodes D1 and D2 described in the third embodiment.
- organic electroluminescent elements EL1, EL2 and diodes D1, D2 are connected by a wiring layer formed on the transparent electrode 11 so as to constitute a rectifier circuit. That is, the rectifier circuit is configured by connecting the two organic electroluminescent elements EL1 and EL2 in series in the forward direction by the diodes D1 and D2.
- a diode D1 is connected in series in the forward direction between the anode of the organic electroluminescent element EL1 and the cathode of the organic electroluminescent element EL2. Furthermore, a diode D2 is connected in series in the forward direction between the cathode of the organic electroluminescent element EL1 and the anode of the organic electroluminescent element EL2.
- the four electrode layers connected between the organic electroluminescent elements EL1 and EL2 and the diodes D1 and D2 constitute power receiving electrodes ELa to ELd.
- the pair of power receiving electrodes corresponding to the hot-side power feeding electrode 105a and the ground-side power feeding electrode 105b provided in the power feeding device 100 ′′ is divided into four power receiving electrodes ELa to ELd.
- the electrode layers connected to the anodes of the organic electroluminescent elements EL1 and EL2 constitute power receiving electrodes ELa and ELc. Further, the electrode layers connected to the cathodes of the organic electroluminescent elements EL1 and EL2 constitute power receiving electrodes ELb and ELd.
- the pair of power receiving electrodes corresponding to the hot-side power feeding electrode 105a and the ground-side power feeding electrode 105b provided in the power feeding device 100 ′′ is divided into four power receiving electrodes ELa to ELd.
- These power receiving electrodes ELa to ELd are composed of electrode layers having the same width in one direction and are arranged in one direction.
- the arrangement state is such that the power receiving electrodes ELa and ELc connected to the anodes of the organic electroluminescent elements EL1 and EL2 and the power receiving electrodes ELb and ELd connected to the cathode are alternately arranged in one direction. is there.
- the configuration in which the power receiving electrodes ELa to ELd are arranged in one direction is shown.
- these power receiving electrodes ELa to ELd may be arranged so as to be shifted in one direction, and depending on the layout of the element, They may be arranged shifted in multiple directions.
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Abstract
A power feed light emitting system equipped with a light emitting element panel having an organic electroluminescent element for which an organic light emitting function layer is sandwiched between a pair of electrodes, and a power feed device having a power feed electrode connected to an alternating current power supply. The light emitting element panel is equipped with a pair of power receiving electrodes comprising an electrode layer connected to the pair of electrodes, and the power feed device has the power feed electrode arranged corresponding to the power receiving electrode, with power being supplied to the organic electroluminescent element by electric field coupling between the power receiving electrode and the power feed electrode.
Description
本発明は、給電発光システム、発光素子パネル、および給電装置に関し、特には有機電界発光素子を用いた発光素子パネルに対してワイヤレス給電による発光を行うための給電発光システム、これに用いる発光素子パネル、及び給電装置に関する。
The present invention relates to a power feeding light emitting system, a light emitting element panel, and a power feeding device, and in particular, a power feeding light emitting system for emitting light by wireless power feeding to a light emitting element panel using an organic electroluminescent element, and a light emitting element panel used for the same And a power supply apparatus.
携帯電話機や携帯音楽プレーヤー等の小型電子機器においては、ワイヤレス給電システムが注目を集めている。ワイヤレス給電システムでは、例えば、給電装置のプレート上に携帯電話機などの受電装置を載置することにより、給電装置と受電装置とをケーブルなどで互いに接続することなく、受電装置に対して給電を行うことが可能である。
Wireless power supply systems are attracting attention in small electronic devices such as mobile phones and portable music players. In a wireless power feeding system, for example, by placing a power receiving device such as a mobile phone on a plate of the power feeding device, power is supplied to the power receiving device without connecting the power feeding device and the power receiving device to each other with a cable or the like. It is possible.
このようなワイヤレス給電システムの一例として、給電装置は給電面に給電コイル部を備え、これに対応して受電装置は受電コイル部を備え、磁気結合によって給電装置から受電装置側に電力を伝送する構成が開示されている(例えば下記特許文献1参照)。
As an example of such a wireless power feeding system, the power feeding device includes a power feeding coil portion on the power feeding surface, and the power receiving device includes a power receiving coil portion corresponding thereto, and transmits power from the power feeding device to the power receiving device side by magnetic coupling. A configuration is disclosed (for example, see Patent Document 1 below).
ところで、近年、画像表示や照明に用いるための装置として、有機電界発光素子を用いた発光素子パネルが注目されている。有機電界発光素子は、陽極層と陰極層との間に有機発光機能層を挟持させた構成であって、パネルの薄型化に対して有利である。しかしながら、このような発光素子パネルに対して、上述した磁気結合によるワイヤレス給電システムを適用すると、受電コイルによってパネルの薄型化が損なわれると言った問題がある。
By the way, in recent years, a light emitting element panel using an organic electroluminescent element has attracted attention as an apparatus for use in image display and illumination. The organic electroluminescent element has a configuration in which an organic light emitting functional layer is sandwiched between an anode layer and a cathode layer, and is advantageous for thinning the panel. However, when the above-described wireless power feeding system using magnetic coupling is applied to such a light emitting element panel, there is a problem that the thinning of the panel is impaired by the power receiving coil.
そこで本発明は、発光素子パネルの薄型化を維持することが可能な給電発光システム、この給電発光システムに用いる発光素子パネル、および給電装置を提供することを目的とする。
Therefore, an object of the present invention is to provide a power feeding light emitting system capable of maintaining a thin light emitting element panel, a light emitting element panel used in the power feeding light emitting system, and a power feeding apparatus.
上記の目的を達成するための本発明は、一対の電極間に有機発光機能層が挟持された有機電界発光素子を有する発光素子パネルと、交流電源に接続された給電電極を有する給電装置とを備え、前記発光素子パネルは、前記一対の電極に接続された電極層からなる一対の受電電極を備え、前記給電装置は、前記受電電極に対応して前記給電電極が配置されたもので、当該受電電極と当該給電電極との間の電界結合により、前記有機電界発光素子に電力を供給する給電発光システムである。
To achieve the above object, the present invention provides a light emitting element panel having an organic electroluminescent element in which an organic light emitting functional layer is sandwiched between a pair of electrodes, and a power supply apparatus having a power supply electrode connected to an AC power source. The light-emitting element panel includes a pair of power receiving electrodes composed of an electrode layer connected to the pair of electrodes, and the power feeding device includes the power feeding electrodes arranged corresponding to the power receiving electrodes. The power supply light emitting system supplies electric power to the organic electroluminescent element by electric field coupling between a power receiving electrode and the power supply electrode.
本発明によれば、発光素子パネルの薄型化を維持することが可能な給電発光システム、この給電発光システムに用いる発光素子パネル、および給電装置を提供することが可能である。
According to the present invention, it is possible to provide a power feeding light emitting system capable of maintaining a thin light emitting element panel, a light emitting element panel used in the power feeding light emitting system, and a power feeding apparatus.
以下、本発明の給電発光システム、発光素子パネル、および給電装置の実施の形態を図面に基づいて説明する。尚、各実施形態において共通の構成要素には同一の符号を付し、重複する説明は省略する。
Hereinafter, embodiments of a power feeding light emitting system, a light emitting element panel, and a power feeding apparatus according to the present invention will be described with reference to the drawings. In addition, in each embodiment, the same code | symbol is attached | subjected to a common component, and the overlapping description is abbreviate | omitted.
≪第1実施形態≫
図1は、第1実施形態の給電発光システム1を示す回路図である。また図2は第1実施形態の給電発光システム1を示す断面模式図である。これらの図に示す給電発光システム1は、有機電界発光素子ELを用いた発光素子パネル10に対して、ワイヤレス給電を行うためのシステムであり、発光素子パネル10と給電装置100とで構成される。以下、これらの構成要素の詳細を説明し、その後、給電発光システム1による給電を説明する。 << First Embodiment >>
FIG. 1 is a circuit diagram showing a power feedinglight emitting system 1 of the first embodiment. FIG. 2 is a schematic cross-sectional view showing the power feeding light emitting system 1 of the first embodiment. The power feeding light emitting system 1 shown in these drawings is a system for performing wireless power feeding to the light emitting element panel 10 using the organic electroluminescent element EL, and is configured by the light emitting element panel 10 and the power feeding device 100. . Hereinafter, details of these components will be described, and then power supply by the power supply light emitting system 1 will be described.
図1は、第1実施形態の給電発光システム1を示す回路図である。また図2は第1実施形態の給電発光システム1を示す断面模式図である。これらの図に示す給電発光システム1は、有機電界発光素子ELを用いた発光素子パネル10に対して、ワイヤレス給電を行うためのシステムであり、発光素子パネル10と給電装置100とで構成される。以下、これらの構成要素の詳細を説明し、その後、給電発光システム1による給電を説明する。 << First Embodiment >>
FIG. 1 is a circuit diagram showing a power feeding
<発光素子パネル10>
図3は、第1実施形態の給電発光システム1に用いる発光素子パネル10の平面模式図であり、先の図2は図3のA-A断面に相当する断面模式図となっている。図1~図3に示す第1実施形態の発光素子パネル10は、透明基板11の一主面上に、有機電界発光素子ELと、有機電界発光素子ELから取り出された1対の受電電極ELa,ELbとを備えている。また有機電界発光素子ELは、透明基板11と、封止層15およびシールド層16との間に封止されている。 <LightEmitting Element Panel 10>
FIG. 3 is a schematic plan view of the lightemitting element panel 10 used in the power feeding light emitting system 1 of the first embodiment, and FIG. 2 is a schematic cross sectional view corresponding to the AA cross section of FIG. The light emitting element panel 10 according to the first embodiment shown in FIGS. 1 to 3 includes an organic electroluminescent element EL and a pair of power receiving electrodes ELa taken out from the organic electroluminescent element EL on one main surface of the transparent substrate 11. , ELb. The organic electroluminescent element EL is sealed between the transparent substrate 11, the sealing layer 15, and the shield layer 16.
図3は、第1実施形態の給電発光システム1に用いる発光素子パネル10の平面模式図であり、先の図2は図3のA-A断面に相当する断面模式図となっている。図1~図3に示す第1実施形態の発光素子パネル10は、透明基板11の一主面上に、有機電界発光素子ELと、有機電界発光素子ELから取り出された1対の受電電極ELa,ELbとを備えている。また有機電界発光素子ELは、透明基板11と、封止層15およびシールド層16との間に封止されている。 <Light
FIG. 3 is a schematic plan view of the light
[有機電界発光素子EL]
有機電界発光素子ELは、透明基板11側から順に、透明電極12、有機発光機能層13、および対向電極14を積層した構成である。一対の電極である透明電極12と対向電極14とは、これらの間に挟持された有機発光機能層13によって絶縁されている。このような有機電界発光素子ELは寄生容量Celを有する。 [Organic electroluminescent element EL]
The organic electroluminescent element EL has a configuration in which atransparent electrode 12, an organic light emitting functional layer 13, and a counter electrode 14 are laminated in order from the transparent substrate 11 side. The transparent electrode 12 and the counter electrode 14 which are a pair of electrodes are insulated by the organic light emitting functional layer 13 sandwiched between them. Such an organic electroluminescent element EL has a parasitic capacitance Cel.
有機電界発光素子ELは、透明基板11側から順に、透明電極12、有機発光機能層13、および対向電極14を積層した構成である。一対の電極である透明電極12と対向電極14とは、これらの間に挟持された有機発光機能層13によって絶縁されている。このような有機電界発光素子ELは寄生容量Celを有する。 [Organic electroluminescent element EL]
The organic electroluminescent element EL has a configuration in which a
また透明電極12および対向電極14は、有機発光機能層13に対して何れか一方がアノードとして用いられ、何れか他方がカソードとして用いられる電極層である。例えばここでは、透明電極12がアノード、対向電極14がカソードとして構成されていることとして説明を行うが、逆であってもよい。
The transparent electrode 12 and the counter electrode 14 are electrode layers in which either one is used as an anode and the other is used as a cathode with respect to the organic light emitting functional layer 13. For example, here, the transparent electrode 12 is described as an anode, and the counter electrode 14 is configured as a cathode.
これらの透明電極12および対向電極14は、有機電界発光素子ELから透明基板11の周縁側に、端子12a,14aとして延設されている。この場合、図3の平面模式図に示すように、透明電極12には、より導電性の高い材料で構成された別体の電極層からなる端子12aが接続されていてもよい。
The transparent electrode 12 and the counter electrode 14 are extended from the organic electroluminescent element EL to the peripheral side of the transparent substrate 11 as terminals 12a and 14a. In this case, as shown in the schematic plan view of FIG. 3, the transparent electrode 12 may be connected to a terminal 12a made of a separate electrode layer made of a material having higher conductivity.
以上のような構成の有機電界発光素子ELは、透明電極12と対向電極14との間に有機発光機能層13が挟持された部分が発光領域となり、この発光領域で発生した光が透明電極12および透明基板11を透過して外部に取り出される。
In the organic electroluminescent element EL having the above configuration, a portion where the organic light emitting functional layer 13 is sandwiched between the transparent electrode 12 and the counter electrode 14 becomes a light emitting region, and light generated in this light emitting region is transparent electrode 12. Then, the light passes through the transparent substrate 11 and is taken out to the outside.
[受電電極ELa,ELb]
受電電極ELa,ELbは、有機電界発光素子ELの透明電極12および対向電極14から透明基板11の周縁側に延設された端子12a,14aのうち、特に次に説明するシールド層16から露出している部分によって構成される。図3の平面模式図に示すように、これらの受電電極ELa,ELbは、平面視的に等しい面積を有していることが好ましく、例えば透明基板11上に一対の受電電極ELaと受電電極ELbとが、平行に配置されていることとする。 [Receiving electrodes ELa, ELb]
The power receiving electrodes ELa and ELb are exposed from theshield layer 16 described below, among the terminals 12a and 14a extending from the transparent electrode 12 and the counter electrode 14 of the organic electroluminescent element EL to the peripheral side of the transparent substrate 11. It is constituted by the part which is. As shown in the schematic plan view of FIG. 3, these power receiving electrodes ELa and ELb preferably have the same area in plan view. For example, a pair of power receiving electrodes ELa and ELb on the transparent substrate 11. Are arranged in parallel.
受電電極ELa,ELbは、有機電界発光素子ELの透明電極12および対向電極14から透明基板11の周縁側に延設された端子12a,14aのうち、特に次に説明するシールド層16から露出している部分によって構成される。図3の平面模式図に示すように、これらの受電電極ELa,ELbは、平面視的に等しい面積を有していることが好ましく、例えば透明基板11上に一対の受電電極ELaと受電電極ELbとが、平行に配置されていることとする。 [Receiving electrodes ELa, ELb]
The power receiving electrodes ELa and ELb are exposed from the
[封止層15]
封止層15は、有機電界発光素子ELの有機発光機能層13を覆う状態で設けられている。この封止層15は、透明電極12と対向電極14とを短絡させることのないように、少なくとも最下層が絶縁性材料で構成されていればよい。尚、封止層15が電磁波遮蔽効果の小さい材料のみで構成されている場合、封止層15は、受電電極ELa,ELbを覆って設けられていてもよい。 [Sealing layer 15]
Thesealing layer 15 is provided so as to cover the organic light emitting functional layer 13 of the organic electroluminescent element EL. This sealing layer 15 should just be comprised by the insulating material at least for the lowest layer so that the transparent electrode 12 and the counter electrode 14 may not be short-circuited. In addition, when the sealing layer 15 is comprised only with the material with a small electromagnetic wave shielding effect, the sealing layer 15 may be provided covering power receiving electrode ELa and ELb.
封止層15は、有機電界発光素子ELの有機発光機能層13を覆う状態で設けられている。この封止層15は、透明電極12と対向電極14とを短絡させることのないように、少なくとも最下層が絶縁性材料で構成されていればよい。尚、封止層15が電磁波遮蔽効果の小さい材料のみで構成されている場合、封止層15は、受電電極ELa,ELbを覆って設けられていてもよい。 [Sealing layer 15]
The
[シールド層16]
シールド層16は、封止層15を介して有機電界発光素子ELの上部に設けられた電磁波遮蔽用の層である。このシールド層16は、受電電極ELa,ELbを露出させる状態で設けられており、端子12a,14aのうち、このシールド層16で覆われていない部分が受電電極ELa,ELbとなる。 [Shield layer 16]
Theshield layer 16 is an electromagnetic wave shielding layer provided on the organic electroluminescent element EL via the sealing layer 15. The shield layer 16 is provided in a state in which the power receiving electrodes ELa and ELb are exposed, and portions of the terminals 12a and 14a that are not covered with the shield layer 16 become the power receiving electrodes ELa and ELb.
シールド層16は、封止層15を介して有機電界発光素子ELの上部に設けられた電磁波遮蔽用の層である。このシールド層16は、受電電極ELa,ELbを露出させる状態で設けられており、端子12a,14aのうち、このシールド層16で覆われていない部分が受電電極ELa,ELbとなる。 [Shield layer 16]
The
以上のようなシールド層16は、封止層15の一部を構成していてもよい。この場合、一例としてアルミニウムのような金属フィルム材料で構成されることがこのましい。
The shield layer 16 as described above may constitute a part of the sealing layer 15. In this case, it is preferable that the film is made of a metal film material such as aluminum.
<給電装置100>
図4は、第1実施形態の給電発光システム1に用いる給電装置100の平面模式図である。図1、図2および図4に示す第1実施形態の給電装置100は、先に説明した発光素子パネル10と組み合わせて用いられるものである。この給電装置100は、装置基体100a、交流電源101、マッチング回路103、および一対の給電電極105a,105bを備えている。 <Power supply device 100>
FIG. 4 is a schematic plan view of thepower supply apparatus 100 used in the power supply light emitting system 1 of the first embodiment. The power supply device 100 according to the first embodiment shown in FIGS. 1, 2, and 4 is used in combination with the light-emitting element panel 10 described above. The power supply device 100 includes a device base 100a, an AC power supply 101, a matching circuit 103, and a pair of power supply electrodes 105a and 105b.
図4は、第1実施形態の給電発光システム1に用いる給電装置100の平面模式図である。図1、図2および図4に示す第1実施形態の給電装置100は、先に説明した発光素子パネル10と組み合わせて用いられるものである。この給電装置100は、装置基体100a、交流電源101、マッチング回路103、および一対の給電電極105a,105bを備えている。 <
FIG. 4 is a schematic plan view of the
[装置基体100a]
装置基体100aは、発光素子パネル10に対して給電を行う際に、発光素子パネル10が載置される程度の大きさの載置面を有する。この装置基体100aには、交流電源101およびマッチング回路103が搭載され、また載置面上には給電電極105a,105bが配置される。 [Device Base 100a]
Thedevice base 100a has a mounting surface large enough to mount the light emitting element panel 10 when power is supplied to the light emitting element panel 10. An AC power supply 101 and a matching circuit 103 are mounted on the apparatus base 100a, and power supply electrodes 105a and 105b are disposed on the mounting surface.
装置基体100aは、発光素子パネル10に対して給電を行う際に、発光素子パネル10が載置される程度の大きさの載置面を有する。この装置基体100aには、交流電源101およびマッチング回路103が搭載され、また載置面上には給電電極105a,105bが配置される。 [
The
[交流電源101]
交流電源101は、例えば13.56MHzの高周波(RF)電源であり、アース側電極とホット側電極とを有する。 [AC power supply 101]
TheAC power supply 101 is a high frequency (RF) power supply of 13.56 MHz, for example, and has a ground side electrode and a hot side electrode.
交流電源101は、例えば13.56MHzの高周波(RF)電源であり、アース側電極とホット側電極とを有する。 [AC power supply 101]
The
[マッチング回路103(図1参照)]
マッチング回路103(図1参照)は、交流電源101と、交流電源101に接続された一対の給電電極105a,105bとの間に設けられている。このマッチング回路103は、伝送線路の特性インピーダンスと給電電極105a,105b以降の回路インピーダンスを整合させるためのインピーダンスマッチング回路であって、図1に示すように例えば2つのコンデンサーC1,C2と、1つのインダクタLとで構成されている。 [Matching circuit 103 (see FIG. 1)]
The matching circuit 103 (see FIG. 1) is provided between theAC power source 101 and a pair of power supply electrodes 105a and 105b connected to the AC power source 101. The matching circuit 103 is an impedance matching circuit for matching the characteristic impedance of the transmission line and the circuit impedance of the power supply electrodes 105a and 105b and the subsequent circuits. As shown in FIG. 1, for example, two capacitors C1 and C2 and one And an inductor L.
マッチング回路103(図1参照)は、交流電源101と、交流電源101に接続された一対の給電電極105a,105bとの間に設けられている。このマッチング回路103は、伝送線路の特性インピーダンスと給電電極105a,105b以降の回路インピーダンスを整合させるためのインピーダンスマッチング回路であって、図1に示すように例えば2つのコンデンサーC1,C2と、1つのインダクタLとで構成されている。 [Matching circuit 103 (see FIG. 1)]
The matching circuit 103 (see FIG. 1) is provided between the
[給電電極105a,105b]
給電電極105a,105bは、マッチング回路103を介して交流電源101の両極に接続されている。これらの給電電極105a,105bは、交流電源101のホット側電極(ホット側の給電電極105a)と、アース側電極(アース側の給電電極105b)である。これらのホット側の給電電極105aとアース側の給電電極105bとは、発光素子パネル10の受電電極ELa,ELbに対応し、互いに平行を保って装置基体100aの載置面上に設けられている。 [ Feeding electrodes 105a and 105b]
The power supply electrodes 105 a and 105 b are connected to both electrodes of the AC power supply 101 through the matching circuit 103. These power supply electrodes 105a and 105b are a hot-side electrode (hot-side power supply electrode 105a) and an earth-side electrode (ground-side power supply electrode 105b) of the AC power supply 101. The hot-side power supply electrode 105a and the ground-side power supply electrode 105b correspond to the power reception electrodes ELa and ELb of the light-emitting element panel 10 and are provided on the mounting surface of the apparatus base 100a while being parallel to each other. .
給電電極105a,105bは、マッチング回路103を介して交流電源101の両極に接続されている。これらの給電電極105a,105bは、交流電源101のホット側電極(ホット側の給電電極105a)と、アース側電極(アース側の給電電極105b)である。これらのホット側の給電電極105aとアース側の給電電極105bとは、発光素子パネル10の受電電極ELa,ELbに対応し、互いに平行を保って装置基体100aの載置面上に設けられている。 [
The
また給電電極105a,105bは、受電電極ELa,ELbの配置ピッチと同程度の配置ピッチで平行に配置されていることとする。尚、給電電極105a,105bは、平面視的に等しい幅および面積を有していることが好ましいが、これに限定されることはない。
The power supply electrodes 105a and 105b are arranged in parallel at an arrangement pitch that is approximately the same as the arrangement pitch of the power receiving electrodes ELa and ELb. The power supply electrodes 105a and 105b preferably have the same width and area in plan view, but are not limited thereto.
<給電発光システム1による給電>
以上のような構成の発光素子パネル10および給電装置100で構成された給電発光システム1においては、次のようにして発光素子パネル10への給電がなされる。 <Power supply by power supplylight emitting system 1>
In the power feedinglight emitting system 1 configured by the light emitting element panel 10 and the power feeding device 100 configured as described above, power is supplied to the light emitting element panel 10 as follows.
以上のような構成の発光素子パネル10および給電装置100で構成された給電発光システム1においては、次のようにして発光素子パネル10への給電がなされる。 <Power supply by power supply
In the power feeding
すなわち、給電装置100を用いて発光素子パネル10への給電を実施するには、給電装置100の交流電源101をオンの状態とする。そして、図2に示すように、給電装置100の給電電極105a,105bと、発光素子パネル10の受電電極ELa,ELbとが、一対一で対向するように、給電装置100の装置基体100a上に発光素子パネル10を載置する。
That is, in order to supply power to the light emitting element panel 10 using the power supply apparatus 100, the AC power supply 101 of the power supply apparatus 100 is turned on. As shown in FIG. 2, the power supply electrodes 105 a and 105 b of the power supply device 100 and the power reception electrodes ELa and ELb of the light emitting element panel 10 face each other on the device base 100 a of the power supply device 100. The light emitting element panel 10 is mounted.
これにより、給電装置100の給電電極105a,105bと、発光素子パネル10の受電電極ELa,ELbとの間に電界Eが発生し、有機電界発光素子ELに対して順方向の電界が発生した場合に、有機電界発光素子ELが発光する。
As a result, when an electric field E is generated between the power supply electrodes 105a and 105b of the power supply apparatus 100 and the power receiving electrodes ELa and ELb of the light emitting element panel 10, a forward electric field is generated with respect to the organic electroluminescent element EL. Further, the organic electroluminescent element EL emits light.
図5は、給電発光システム1における発光特性を示すグラフであり、横軸が時間[t]、縦軸が発光強度[I]である。図5に示すように、給電発光システム1においては、交流電源101からの電圧の供給が、有機電界発光素子ELに対して順方向となった場合に、有機電界発光素子ELが発光する。
FIG. 5 is a graph showing the light emission characteristics in the power feeding light emitting system 1, where the horizontal axis represents time [t] and the vertical axis represents light emission intensity [I]. As shown in FIG. 5, in the power feeding light emitting system 1, the organic electroluminescent element EL emits light when the supply of voltage from the AC power supply 101 is forward with respect to the organic electroluminescent element EL.
<第1実施形態の効果>
以上説明した第1実施形態の給電発光システム1、発光素子パネル10、および給電装置100は、有機電界発光素子ELを構成する透明電極12と対向電極14の端子12a,14aを受電電極ELa,ELbとして用い、電界結合によるワイヤレス給電によって有機電界発光素子ELを発光させる構成である。このため、発光素子パネル10側および給電装置100側に、コイル等を設ける必要がなく、発光素子パネル10および給電装置100の薄型化、さらには給電発光システム1の薄型化を維持することが可能である。 <Effects of First Embodiment>
The power feedinglight emitting system 1, the light emitting element panel 10, and the power feeding apparatus 100 according to the first embodiment described above have the transparent electrodes 12 and the terminals 12 a and 14 a of the counter electrode 14 constituting the organic electroluminescent element EL as power receiving electrodes ELa and ELb. The organic electroluminescent element EL emits light by wireless power feeding using electric field coupling. For this reason, it is not necessary to provide a coil or the like on the light emitting element panel 10 side and the power feeding device 100 side, and the light emitting element panel 10 and the power feeding device 100 can be thinned, and further, the power feeding light emitting system 1 can be kept thin. It is.
以上説明した第1実施形態の給電発光システム1、発光素子パネル10、および給電装置100は、有機電界発光素子ELを構成する透明電極12と対向電極14の端子12a,14aを受電電極ELa,ELbとして用い、電界結合によるワイヤレス給電によって有機電界発光素子ELを発光させる構成である。このため、発光素子パネル10側および給電装置100側に、コイル等を設ける必要がなく、発光素子パネル10および給電装置100の薄型化、さらには給電発光システム1の薄型化を維持することが可能である。 <Effects of First Embodiment>
The power feeding
≪第1実施形態の変形例≫
図6は、第1実施形態の給電発光システム1の変形例を示す平面模式図である。図6に示す変形例の給電発光システム1’は、給電装置100’の構成が特徴的である。 << Modification of First Embodiment >>
FIG. 6 is a schematic plan view illustrating a modification of the power feedinglight emitting system 1 of the first embodiment. A power feeding light emitting system 1 ′ of the modification shown in FIG. 6 is characterized by the configuration of the power feeding apparatus 100 ′.
図6は、第1実施形態の給電発光システム1の変形例を示す平面模式図である。図6に示す変形例の給電発光システム1’は、給電装置100’の構成が特徴的である。 << Modification of First Embodiment >>
FIG. 6 is a schematic plan view illustrating a modification of the power feeding
<給電装置100’>
給電装置100’は、装置基体100a上に、ホット側の給電電極105aと、アース側の給電電極105bとを、交互に複数配置した構成であり、交流電源101およびマッチング回路103の構成は第1実施形態と同様である。 <Power supply device 100 '>
Thepower supply device 100 ′ has a configuration in which a plurality of hot-side power supply electrodes 105a and ground-side power supply electrodes 105b are alternately arranged on the device base 100a. The configurations of the AC power supply 101 and the matching circuit 103 are the first. This is the same as the embodiment.
給電装置100’は、装置基体100a上に、ホット側の給電電極105aと、アース側の給電電極105bとを、交互に複数配置した構成であり、交流電源101およびマッチング回路103の構成は第1実施形態と同様である。 <Power supply device 100 '>
The
この場合であっても、各給電電極105a,105bは、受電電極ELa,ELbの配置ピッチと同程度の配置ピッチで平行に配置されていることとする。また、給電電極105a,105bは、平面視的に等しい幅および面積を有していることが好ましいが、これに限定されることはない。
Even in this case, it is assumed that the power feeding electrodes 105a and 105b are arranged in parallel at an arrangement pitch similar to the arrangement pitch of the power receiving electrodes ELa and ELb. The power supply electrodes 105a and 105b preferably have the same width and area in plan view, but are not limited thereto.
このような給電装置100’を用いることにより、第1実施形態で説明したと同様の構成を有する複数の発光素子パネル10a~10に対して給電を実施して各有機電界発光素子ELを発光させることができる。この場合、図示した発光素子パネル10a,10bのように、それぞれの受電電極ELa,ELbを、給電装置100’の給電電極105a,105bに対して、一対一で対応させる状態で、給電装置100’上に載置する。これにより、これら複数の発光素子パネル10を発光させることができる。一方、発光素子パネル10c,10dのように、受電電極ELa,ELbが、給電装置100’の給電電極105a,105bに対して、一対一で対応していない場合、給電装置100’上の発光素子パネル10c,10dは発光しない。
By using such a power supply device 100 ′, power is supplied to the plurality of light emitting element panels 10a to 10 having the same configuration as described in the first embodiment, and each organic electroluminescent element EL emits light. be able to. In this case, as in the illustrated light emitting element panels 10a and 10b, the power receiving device 100 ′ is configured such that the power receiving electrodes ELa and ELb correspond one-to-one with the power feeding electrodes 105a and 105b of the power feeding device 100 ′. Place on top. Thereby, these several light emitting element panels 10 can be light-emitted. On the other hand, when the power receiving electrodes ELa and ELb do not correspond one-to-one with the power feeding electrodes 105a and 105b of the power feeding device 100 ′ as in the light emitting element panels 10c and 10d, the light emitting elements on the power feeding device 100 ′. The panels 10c and 10d do not emit light.
尚、この変形例は、以降に説明する各実施形態との組み合わせも可能である。
It should be noted that this modification can be combined with each embodiment described below.
≪第2実施形態≫
図7は、第2実施形態の給電発光システム2を示す回路図である。この図に示す給電発光システム2が、図1を用いて説明した給電発光システム1と異なるところは、発光素子パネル20の構成にあり、他の構成は同様である。このため、ここでは発光素子パネル20の構成を説明する。 << Second Embodiment >>
FIG. 7 is a circuit diagram showing the power feedinglight emitting system 2 of the second embodiment. The power feeding light emitting system 2 shown in this figure is different from the power feeding light emitting system 1 described with reference to FIG. 1 in the configuration of the light emitting element panel 20, and the other configurations are the same. For this reason, the structure of the light emitting element panel 20 is demonstrated here.
図7は、第2実施形態の給電発光システム2を示す回路図である。この図に示す給電発光システム2が、図1を用いて説明した給電発光システム1と異なるところは、発光素子パネル20の構成にあり、他の構成は同様である。このため、ここでは発光素子パネル20の構成を説明する。 << Second Embodiment >>
FIG. 7 is a circuit diagram showing the power feeding
<発光素子パネル20>
図8は、第2実施形態の給電発光システム2に用いる発光素子パネル20の平面模式図である。図7および図8に示す第2実施形態の発光素子パネル20は、透明基板11の一主面上に、2つの有機電界発光素子EL1、EL2と、これらの有機電界発光素子EL1,EL2から取り出された1対の受電電極ELa,ELbとを備えている。これらの有機電界発光素子EL1,EL2が、透明基板11と、封止層15およびシールド層16との間に封止されていることは、第1実施形態と同様である。 <Light EmittingElement Panel 20>
FIG. 8 is a schematic plan view of the light emittingelement panel 20 used in the power feeding light emitting system 2 of the second embodiment. The light emitting element panel 20 of the second embodiment shown in FIGS. 7 and 8 is taken out from the two organic electroluminescent elements EL1, EL2 and the organic electroluminescent elements EL1, EL2 on one main surface of the transparent substrate 11. And a pair of power receiving electrodes ELa and ELb. The organic electroluminescent elements EL1 and EL2 are sealed between the transparent substrate 11, the sealing layer 15 and the shield layer 16, as in the first embodiment.
図8は、第2実施形態の給電発光システム2に用いる発光素子パネル20の平面模式図である。図7および図8に示す第2実施形態の発光素子パネル20は、透明基板11の一主面上に、2つの有機電界発光素子EL1、EL2と、これらの有機電界発光素子EL1,EL2から取り出された1対の受電電極ELa,ELbとを備えている。これらの有機電界発光素子EL1,EL2が、透明基板11と、封止層15およびシールド層16との間に封止されていることは、第1実施形態と同様である。 <Light Emitting
FIG. 8 is a schematic plan view of the light emitting
[有機電界発光素子EL1,EL2]
有機電界発光素子EL1,EL2は、それぞれが第1実施形態で説明した有機電界発光素子ELと同様の積層構成であり、透明基板11側から順に、透明電極12、有機発光機能層13、および対向電極14を積層した構成である。透明電極12と対向電極14とは、有機発光機能層13によって絶縁された状態で配置されており、寄生容量Celを有する。 [Organic electroluminescent elements EL1, EL2]
Each of the organic electroluminescent elements EL1 and EL2 has the same stacked configuration as the organic electroluminescent element EL described in the first embodiment, and in order from thetransparent substrate 11 side, the transparent electrode 12, the organic light emitting functional layer 13, and the counter electrode In this configuration, the electrodes 14 are stacked. The transparent electrode 12 and the counter electrode 14 are arranged in a state of being insulated by the organic light emitting functional layer 13 and have a parasitic capacitance Cel.
有機電界発光素子EL1,EL2は、それぞれが第1実施形態で説明した有機電界発光素子ELと同様の積層構成であり、透明基板11側から順に、透明電極12、有機発光機能層13、および対向電極14を積層した構成である。透明電極12と対向電極14とは、有機発光機能層13によって絶縁された状態で配置されており、寄生容量Celを有する。 [Organic electroluminescent elements EL1, EL2]
Each of the organic electroluminescent elements EL1 and EL2 has the same stacked configuration as the organic electroluminescent element EL described in the first embodiment, and in order from the
これらの有機電界発光素子EL1,EL2は、接続された状態で設けられている。すなわち図7の回路図に示すように、有機電界発光素子EL1のアノードと、有機電界発光素子EL2のカソードとが接続され、2つの受電電極ELa,ELbのうちの何れか一方、ここでは受電電極ELaに接続されている。また有機電界発光素子EL1のカソードと、有機電界発光素子EL2のアノードとが、2つの受電電極ELa,ELbのうちの何れか他方、ここでは受電電極ELbに接続されている。
These organic electroluminescent elements EL1, EL2 are provided in a connected state. That is, as shown in the circuit diagram of FIG. 7, the anode of the organic electroluminescent element EL1 and the cathode of the organic electroluminescent element EL2 are connected, and one of the two power receiving electrodes ELa and ELb, here the power receiving electrode. Connected to ELa. Further, the cathode of the organic electroluminescent element EL1 and the anode of the organic electroluminescent element EL2 are connected to one of the two power receiving electrodes ELa and ELb, here, the power receiving electrode ELb.
また、図8の平面図に示すように、これらの有機電界発光素子EL1,EL2の透明電極12および対向電極14は、何れか一方がアノードとして用いられ、何れか他方がカソードとして用いられることは第1実施形態と同様であり、それぞれの透明電極12がアノード、対向電極14がカソードとして構成されていることとする。
Further, as shown in the plan view of FIG. 8, one of the transparent electrode 12 and the counter electrode 14 of these organic electroluminescent elements EL1 and EL2 is used as an anode and the other is used as a cathode. As in the first embodiment, each transparent electrode 12 is configured as an anode and the counter electrode 14 is configured as a cathode.
この場合、有機電界発光素子EL1の透明電極12と、有機電界発光素子EL2の対向電極14とが接続された状態となる。また、有機電界発光素子EL1の対向電極14と有機電界発光素子EL2の透明電極12とが接続された状態となる。尚、この場合、図8のA-A断面は、第1実施形態で説明した図2と同様である。
In this case, the transparent electrode 12 of the organic electroluminescent element EL1 and the counter electrode 14 of the organic electroluminescent element EL2 are connected. Further, the counter electrode 14 of the organic electroluminescent element EL1 and the transparent electrode 12 of the organic electroluminescent element EL2 are connected. In this case, the AA cross section of FIG. 8 is the same as FIG. 2 described in the first embodiment.
以上のような有機電界発光素子EL1,EL2の透明電極12および対向電極14は、透明基板11の周縁側に、端子12a,14aとして引き出されており、各透明電極12には、より導電性の高い材料で構成された別体の端子12aが接続されていてもよいことは、第1実施形態と同様である。
The transparent electrode 12 and the counter electrode 14 of the organic electroluminescent elements EL1 and EL2 as described above are drawn out as terminals 12a and 14a on the peripheral side of the transparent substrate 11, and each transparent electrode 12 has a more conductive property. It is the same as that of 1st Embodiment that the separate terminal 12a comprised with the high material may be connected.
[受電電極ELa,ELb]
受電電極ELa,ELbは、各有機電界発光素子EL1,EL2の透明電極12および対向電極14から透明基板11の周縁側に延設された端子12a,14aのうち、シールド層16から露出している部分によって構成されこと、および平面視的に等しい面積を有していることが好ましく、例えば透明基板11上に平行に配置されていることは、第1実施形態と同様である。ただし、接続状態にある有機電界発光素子EL1のアノードと有機電界発光素子EL2のカソードとが、一方の受電電極ELaを構成し、また接続状態にある有機電界発光素子EL1のカソードと有機電界発光素子EL2のアノードとが、他方の受電電極ELbを構成するところが、第1実施形態とは異なる。 [Receiving electrodes ELa, ELb]
The power receiving electrodes ELa and ELb are exposed from theshield layer 16 among the terminals 12 a and 14 a extending from the transparent electrode 12 and the counter electrode 14 of the organic electroluminescent elements EL 1 and EL 2 to the peripheral side of the transparent substrate 11. It is preferable to be configured by the portions and to have the same area in a plan view. For example, they are arranged in parallel on the transparent substrate 11 as in the first embodiment. However, the anode of the organic electroluminescent element EL1 in the connected state and the cathode of the organic electroluminescent element EL2 constitute one power receiving electrode ELa, and the cathode and the organic electroluminescent element of the organic electroluminescent element EL1 in the connected state The difference from the first embodiment is that the anode of EL2 constitutes the other power receiving electrode ELb.
受電電極ELa,ELbは、各有機電界発光素子EL1,EL2の透明電極12および対向電極14から透明基板11の周縁側に延設された端子12a,14aのうち、シールド層16から露出している部分によって構成されこと、および平面視的に等しい面積を有していることが好ましく、例えば透明基板11上に平行に配置されていることは、第1実施形態と同様である。ただし、接続状態にある有機電界発光素子EL1のアノードと有機電界発光素子EL2のカソードとが、一方の受電電極ELaを構成し、また接続状態にある有機電界発光素子EL1のカソードと有機電界発光素子EL2のアノードとが、他方の受電電極ELbを構成するところが、第1実施形態とは異なる。 [Receiving electrodes ELa, ELb]
The power receiving electrodes ELa and ELb are exposed from the
<給電発光システム2による給電>
以上のような構成の発光素子パネル20および給電装置100で構成された給電発光システム2における発光素子パネル20への給電は、第1実施形態と同様に実施される。すなわち、給電装置100の交流電源101をオンの状態とする。そして、図7に示すように、給電装置100の給電電極105a,105bと、発光素子パネル20の受電電極ELa,ELbとが、一対一で対向するように、給電装置100の装置基体100a上に発光素子パネル20を載置する。 <Power supply by power supplylight emitting system 2>
Power feeding to the light emittingelement panel 20 in the power feeding light emitting system 2 configured by the light emitting element panel 20 and the power feeding apparatus 100 configured as described above is performed in the same manner as in the first embodiment. That is, the AC power supply 101 of the power supply apparatus 100 is turned on. Then, as shown in FIG. 7, the power supply electrodes 105 a and 105 b of the power supply device 100 and the power receiving electrodes ELa and ELb of the light emitting element panel 20 are opposed to each other on the device base 100 a of the power supply device 100. The light emitting element panel 20 is mounted.
以上のような構成の発光素子パネル20および給電装置100で構成された給電発光システム2における発光素子パネル20への給電は、第1実施形態と同様に実施される。すなわち、給電装置100の交流電源101をオンの状態とする。そして、図7に示すように、給電装置100の給電電極105a,105bと、発光素子パネル20の受電電極ELa,ELbとが、一対一で対向するように、給電装置100の装置基体100a上に発光素子パネル20を載置する。 <Power supply by power supply
Power feeding to the light emitting
これにより、給電装置100の給電電極105a,105bと、発光素子パネル20の受電電極ELa,ELbとの間に電界Eが発生し、有機電界発光素子EL1,EL2のそれぞれに対して順方向の電界が発生した場合に、有機電界発光素子EL1,EL2が発光する。ここで、有機電界発光素子EL1と有機電界発光素子EL2とは、受電電極ELa,ELbに対してアノードとカソードとを逆方向に接続した構成である。このため、これらの有機電界発光素子EL1,EL2は、交互に発光することになる。
As a result, an electric field E is generated between the power feeding electrodes 105a and 105b of the power feeding device 100 and the power receiving electrodes ELa and ELb of the light emitting element panel 20, and a forward electric field is applied to each of the organic electroluminescent elements EL1 and EL2. When this occurs, the organic electroluminescent elements EL1 and EL2 emit light. Here, the organic electroluminescent element EL1 and the organic electroluminescent element EL2 have a configuration in which an anode and a cathode are connected in opposite directions with respect to the power receiving electrodes ELa and ELb. For this reason, these organic electroluminescent elements EL1 and EL2 emit light alternately.
図9は、給電発光システム1における発光特性を示すグラフであり、横軸が時間[t]、縦軸が発光強度[I]である。図9に示すように、給電発光システム2においては、有機電界発光素子EL1,EL2が、13.56MHzの周期で交互に発光する。
FIG. 9 is a graph showing light emission characteristics in the power feeding light emitting system 1, where the horizontal axis represents time [t] and the vertical axis represents light emission intensity [I]. As shown in FIG. 9, in the feeding light emitting system 2, the organic electroluminescent elements EL1 and EL2 alternately emit light at a period of 13.56 MHz.
<第2実施形態の効果>
以上説明した第2実施形態の給電発光システム2、発光素子パネル20、および給電装置100は、有機電界発光素子EL1,EL2を構成する透明電極12と対向電極14の端子12a,14aを、受電電極ELa,ELbとして用いている。これにより第1実施形態と同様に、ワイヤレス給電による有機電界発光素子EL1,EL2の発光を実現するに際し、発光素子パネル20側および給電装置100側に、コイル等を設ける必要がなく、発光素子パネル20および給電装置100の薄型化、さらには給電発光システム2の薄型化を維持することが可能である。 <Effects of Second Embodiment>
The power feedinglight emitting system 2, the light emitting element panel 20, and the power feeding apparatus 100 according to the second embodiment described above are configured so that the transparent electrodes 12 and the terminals 12 a and 14 a of the counter electrode 14 constituting the organic electroluminescent elements EL 1 and EL 2 are used as power receiving electrodes. ELa and ELb are used. Thus, similarly to the first embodiment, when realizing the light emission of the organic electroluminescent elements EL1, EL2 by wireless power feeding, it is not necessary to provide a coil or the like on the light emitting element panel 20 side and the power feeding device 100 side, and the light emitting element panel 20 and the power feeding device 100 can be made thinner, and further, the power feeding light emitting system 2 can be kept thinner.
以上説明した第2実施形態の給電発光システム2、発光素子パネル20、および給電装置100は、有機電界発光素子EL1,EL2を構成する透明電極12と対向電極14の端子12a,14aを、受電電極ELa,ELbとして用いている。これにより第1実施形態と同様に、ワイヤレス給電による有機電界発光素子EL1,EL2の発光を実現するに際し、発光素子パネル20側および給電装置100側に、コイル等を設ける必要がなく、発光素子パネル20および給電装置100の薄型化、さらには給電発光システム2の薄型化を維持することが可能である。 <Effects of Second Embodiment>
The power feeding
さらに、有機電界発光素子EL1,EL2のアノードとカソードとを、受電電極ELa,ELbに対して逆方向に接続した構成であるため、交流電源101からの交流電圧の極性の入れ替わりに応じて、有機電界発光素子EL1,EL2を交互に発光させることができる。このため、交流電源101から供給される電力を効率的に利用した発光が可能になる。
Furthermore, since the anodes and cathodes of the organic electroluminescent elements EL1, EL2 are connected in the opposite direction with respect to the power receiving electrodes ELa, ELb, the organic electroluminescence elements EL1, EL2 The electroluminescent elements EL1 and EL2 can emit light alternately. For this reason, light emission using the electric power supplied from the AC power supply 101 efficiently is possible.
≪第2実施形態の変形例≫
図10は、第2実施形態の給電発光システムの変形例を示す断面模式図である。また図11、第2実施形態の給電発光システムに用いる発光素子パネルの変形例を示す平面模式図である。尚、図10は、図11におけるA-A断面に相当する部分の断面模式図である。 << Modification of Second Embodiment >>
FIG. 10 is a schematic cross-sectional view illustrating a modified example of the power feeding light emitting system of the second embodiment. FIG. 11 is a schematic plan view showing a modification of the light emitting element panel used in the power feeding light emitting system of the second embodiment. FIG. 10 is a schematic cross-sectional view of a portion corresponding to the AA cross section in FIG.
図10は、第2実施形態の給電発光システムの変形例を示す断面模式図である。また図11、第2実施形態の給電発光システムに用いる発光素子パネルの変形例を示す平面模式図である。尚、図10は、図11におけるA-A断面に相当する部分の断面模式図である。 << Modification of Second Embodiment >>
FIG. 10 is a schematic cross-sectional view illustrating a modified example of the power feeding light emitting system of the second embodiment. FIG. 11 is a schematic plan view showing a modification of the light emitting element panel used in the power feeding light emitting system of the second embodiment. FIG. 10 is a schematic cross-sectional view of a portion corresponding to the AA cross section in FIG.
これらの図に示す給電発光システム2’は、図7および図8を用いて説明した第2実施形態の変形例であり、発光素子パネル20’の構成に特徴がある。
The power supply light emitting system 2 ′ shown in these drawings is a modification of the second embodiment described with reference to FIGS. 7 and 8, and is characterized by the configuration of the light emitting element panel 20 ′.
<発光素子パネル20’>
すなわち発光素子パネル20’は、2つの有機電界発光素子EL1,EL2における透明電極12の端子12a(アノード)が、それぞれの有機電界発光素子EL1,EL2に対して独立して設けられたシールド層16に接続されたものである。これにより、端子12aとシールド層16とで、受電電極ELa”,ELb”が構成されている。この場合、シールド層16は、有機電界発光素子EL1,EL2をそれぞれ独立に覆う形状であると共に、それぞれが対向電極14から引き出された端子14aまでを覆う形状であることとする。 <Light emittingelement panel 20 '>
That is, in the light emittingelement panel 20 ′, the shield layer 16 in which the terminal 12a (anode) of the transparent electrode 12 in the two organic electroluminescent elements EL1 and EL2 is provided independently for each of the organic electroluminescent elements EL1 and EL2. Is connected to. Thus, the terminal 12a and the shield layer 16 constitute the power receiving electrodes ELa ″ and ELb ″. In this case, the shield layer 16 has a shape that covers the organic electroluminescent elements EL1 and EL2 independently, and a shape that covers each of the terminals 14a drawn from the counter electrode 14.
すなわち発光素子パネル20’は、2つの有機電界発光素子EL1,EL2における透明電極12の端子12a(アノード)が、それぞれの有機電界発光素子EL1,EL2に対して独立して設けられたシールド層16に接続されたものである。これにより、端子12aとシールド層16とで、受電電極ELa”,ELb”が構成されている。この場合、シールド層16は、有機電界発光素子EL1,EL2をそれぞれ独立に覆う形状であると共に、それぞれが対向電極14から引き出された端子14aまでを覆う形状であることとする。 <Light emitting
That is, in the light emitting
<給電発光システム2’による給電>
以上のような構成の発光素子パネル20’および給電装置100で構成された給電発光システム2’における発光素子パネル20’への給電は、第1実施形態と同様に実施される。すなわち、給電装置100の交流電源101をオンの状態とする。そして、図10に示すように、給電装置100の給電電極105a,105bと、発光素子パネル50の受電電極ELa”,ELb”とが、一対一で対向するように、給電装置100の装置基体100a上に発光素子パネル20’を載置する。 <Power supply by power supply light emitting system 2 '>
Power feeding to the light emittingelement panel 20 ′ in the power feeding light emitting system 2 ′ configured by the light emitting element panel 20 ′ and the power feeding apparatus 100 configured as described above is performed in the same manner as in the first embodiment. That is, the AC power supply 101 of the power supply apparatus 100 is turned on. Then, as shown in FIG. 10, the device base 100 a of the power feeding device 100 so that the power feeding electrodes 105 a and 105 b of the power feeding device 100 and the power receiving electrodes ELa ″ and ELb ″ of the light emitting element panel 50 face each other one-on-one. The light emitting element panel 20 ′ is placed thereon.
以上のような構成の発光素子パネル20’および給電装置100で構成された給電発光システム2’における発光素子パネル20’への給電は、第1実施形態と同様に実施される。すなわち、給電装置100の交流電源101をオンの状態とする。そして、図10に示すように、給電装置100の給電電極105a,105bと、発光素子パネル50の受電電極ELa”,ELb”とが、一対一で対向するように、給電装置100の装置基体100a上に発光素子パネル20’を載置する。 <Power supply by power supply light emitting system 2 '>
Power feeding to the light emitting
これにより、第2実施形態と同様に、2つの有機電界発光素子EL1,EL2から、絶え間なく連続的な発光を得ることができる。
Thereby, as in the second embodiment, continuous light emission can be obtained continuously from the two organic electroluminescent elements EL1, EL2.
<第2実施形態の変形例の効果>
以上説明した第2実施形態の変形例の給電発光システム2’、発光素子パネル20’、および給電装置100は、発光素子パネル20’において、2つの有機電界発光素子EL1,EL2間を接続する端子12a,14aと、シールド層16とを接続して受電電極ELa”,ELb”とした構成である。このため、発光素子パネル50の受電電極ELa”,ELb”の電極面を広くし、受電電極ELa”,ELb”と給電電極105a,105bとの間に生じる電界Eの強度を高めることができる。これにより高輝度で有機電界発光素子EL1,EL2を発光させることが可能になる。 <Effects of Modification of Second Embodiment>
The power feedinglight emitting system 2 ′, the light emitting element panel 20 ′, and the power feeding apparatus 100 according to the modification of the second embodiment described above are terminals for connecting the two organic electroluminescent elements EL1 and EL2 in the light emitting element panel 20 ′. 12a and 14a and the shield layer 16 are connected to form power receiving electrodes ELa ″ and ELb ″. Therefore, the electrode surfaces of the power receiving electrodes ELa ″ and ELb ″ of the light emitting element panel 50 can be widened to increase the intensity of the electric field E generated between the power receiving electrodes ELa ″ and ELb ″ and the power feeding electrodes 105a and 105b. As a result, the organic electroluminescent elements EL1 and EL2 can emit light with high luminance.
以上説明した第2実施形態の変形例の給電発光システム2’、発光素子パネル20’、および給電装置100は、発光素子パネル20’において、2つの有機電界発光素子EL1,EL2間を接続する端子12a,14aと、シールド層16とを接続して受電電極ELa”,ELb”とした構成である。このため、発光素子パネル50の受電電極ELa”,ELb”の電極面を広くし、受電電極ELa”,ELb”と給電電極105a,105bとの間に生じる電界Eの強度を高めることができる。これにより高輝度で有機電界発光素子EL1,EL2を発光させることが可能になる。 <Effects of Modification of Second Embodiment>
The power feeding
≪第3実施形態≫
図12は、第3実施形態の給電発光システム3を示す回路図である。この図に示す給電発光システム3が、図1を用いて説明した給電発光システム1と異なるところは、発光素子パネル30の構成にあり、他の構成は同様である。このため、ここでは発光素子パネル30の構成を説明する。 «Third embodiment»
FIG. 12 is a circuit diagram showing a power feedinglight emitting system 3 of the third embodiment. The power feeding light emitting system 3 shown in this figure is different from the power feeding light emitting system 1 described with reference to FIG. 1 in the configuration of the light emitting element panel 30, and the other configurations are the same. For this reason, the structure of the light emitting element panel 30 is demonstrated here.
図12は、第3実施形態の給電発光システム3を示す回路図である。この図に示す給電発光システム3が、図1を用いて説明した給電発光システム1と異なるところは、発光素子パネル30の構成にあり、他の構成は同様である。このため、ここでは発光素子パネル30の構成を説明する。 «Third embodiment»
FIG. 12 is a circuit diagram showing a power feeding
<発光素子パネル30>
図13は、第3実施形態の給電発光システム3に用いる発光素子パネル30の平面模式図である。図12および図13に示す第3実施形態の発光素子パネル30は、有機電界発光素子ELの他に、2つのダイオードD1,D2を備えている。また有機電界発光素子ELから取り出された1対の受電電極ELa,ELb’の一方が、有機電界発光素子ELとは別体の電極層として構成されているところが特徴的である。有機電界発光素子ELの構成は、第1実施形態と同様であるためここでは、受電電極ELa,ELb’および2つのダイオードD1,D2について説明する。 <Light EmittingElement Panel 30>
FIG. 13 is a schematic plan view of the light emittingelement panel 30 used in the power feeding light emitting system 3 of the third embodiment. The light emitting element panel 30 of the third embodiment shown in FIGS. 12 and 13 includes two diodes D1 and D2 in addition to the organic electroluminescent element EL. Further, it is characteristic that one of the pair of power receiving electrodes ELa and ELb ′ taken out from the organic electroluminescent element EL is configured as an electrode layer separate from the organic electroluminescent element EL. Since the configuration of the organic electroluminescent element EL is the same as that of the first embodiment, the power receiving electrodes ELa and ELb ′ and the two diodes D1 and D2 will be described here.
図13は、第3実施形態の給電発光システム3に用いる発光素子パネル30の平面模式図である。図12および図13に示す第3実施形態の発光素子パネル30は、有機電界発光素子ELの他に、2つのダイオードD1,D2を備えている。また有機電界発光素子ELから取り出された1対の受電電極ELa,ELb’の一方が、有機電界発光素子ELとは別体の電極層として構成されているところが特徴的である。有機電界発光素子ELの構成は、第1実施形態と同様であるためここでは、受電電極ELa,ELb’および2つのダイオードD1,D2について説明する。 <Light Emitting
FIG. 13 is a schematic plan view of the light emitting
[受電電極ELa,ELb’]
受電電極ELa,ELb’は、何れか一方が、有機電界発光素子ELの透明電極12または対向電極14から透明基板11の周縁側に延設された一方の端子によって構成されたものである。ここでは一例として、透明電極12から引き出された端子12aにおいて、シールド層16から露出している部分によって受電電極ELaが構成されている。 [Receiving electrodes ELa, ELb ′]
Either one of the power receiving electrodes ELa and ELb ′ is constituted by one terminal extending from thetransparent electrode 12 or the counter electrode 14 of the organic electroluminescent element EL toward the peripheral side of the transparent substrate 11. Here, as an example, the power receiving electrode ELa is configured by a portion exposed from the shield layer 16 in the terminal 12 a drawn out from the transparent electrode 12.
受電電極ELa,ELb’は、何れか一方が、有機電界発光素子ELの透明電極12または対向電極14から透明基板11の周縁側に延設された一方の端子によって構成されたものである。ここでは一例として、透明電極12から引き出された端子12aにおいて、シールド層16から露出している部分によって受電電極ELaが構成されている。 [Receiving electrodes ELa, ELb ′]
Either one of the power receiving electrodes ELa and ELb ′ is constituted by one terminal extending from the
また受電電極ELa,ELb’は、何れか他方が、有機電界発光素子ELの透明電極12または対向電極14から透明基板11の周縁側に延設された他方の端子に、ダイオードD1を介して接続された電極層部分によって構成されたものである。ここでは一例として、対向電極14から引き出された端子14aに対して、ダイオードD1を介して接続された電極層によって受電電極ELb’が構成されている。このような受電電極ELb’は、有機電界発光素子ELが設けられた透明基板11上に、電極層としてパターン形成されものである。
In addition, either one of the power receiving electrodes ELa and ELb ′ is connected to the other terminal extending from the transparent electrode 12 or the counter electrode 14 of the organic electroluminescent element EL to the peripheral side of the transparent substrate 11 via the diode D1. It is comprised by the electrode layer part made. Here, as an example, the power receiving electrode ELb 'is configured by an electrode layer connected to the terminal 14a drawn from the counter electrode 14 via the diode D1. Such a power receiving electrode ELb 'is formed as a pattern as an electrode layer on the transparent substrate 11 provided with the organic electroluminescent element EL.
これらの受電電極ELa,ELb’は、平面視的に等しい面積を有していることが好ましい。また、有機電界発光素子ELの対向電極14から引き出された端子14aは、受電電極として用いられることはない。このため、シールド層16は、有機電界発光素子ELの対向電極14から引き出された端子14aまでを覆う形状であることが好ましい。
These power receiving electrodes ELa and ELb 'preferably have the same area in plan view. Further, the terminal 14a drawn from the counter electrode 14 of the organic electroluminescent element EL is not used as a power receiving electrode. For this reason, it is preferable that the shield layer 16 has a shape covering the terminal 14a drawn from the counter electrode 14 of the organic electroluminescent element EL.
[ダイオードD1,D2]
発光素子パネル30を構成するダイオードD1,D2は、有機電界発光素子ELと2つの受電電極ELa,ELb’との間に配置されている。例えば、一方のダイオードD1は、有機電界発光素子ELの対向電極14によって構成されたカソードと、受電電極ELb’との間に、有機電界発光素子ELに対して順方向に接続される状態で設けられている。また他方のダイオードD2は、2つの受電電極ELaと受電電極ELb’との間に、有機電界発光素子ELおよびダイオードD1に対して順方向に接続された状態で設けられている。 [Diodes D1, D2]
The diodes D1 and D2 constituting the light emittingelement panel 30 are disposed between the organic electroluminescent element EL and the two power receiving electrodes ELa and ELb ′. For example, one diode D1 is provided between the cathode formed by the counter electrode 14 of the organic electroluminescent element EL and the power receiving electrode ELb ′ so as to be connected in the forward direction to the organic electroluminescent element EL. It has been. The other diode D2 is provided between the two power receiving electrodes ELa and ELb ′ in a state of being connected to the organic electroluminescent element EL and the diode D1 in the forward direction.
発光素子パネル30を構成するダイオードD1,D2は、有機電界発光素子ELと2つの受電電極ELa,ELb’との間に配置されている。例えば、一方のダイオードD1は、有機電界発光素子ELの対向電極14によって構成されたカソードと、受電電極ELb’との間に、有機電界発光素子ELに対して順方向に接続される状態で設けられている。また他方のダイオードD2は、2つの受電電極ELaと受電電極ELb’との間に、有機電界発光素子ELおよびダイオードD1に対して順方向に接続された状態で設けられている。 [Diodes D1, D2]
The diodes D1 and D2 constituting the light emitting
以上のようなダイオードD1,D2は、ショットキーダイオードであり、透明基板11上に形成された配線層によって、有機電界発光素子ELおよび2つの受電電極ELa,ELb’に対して接続された状態となっている。またこれらのダイオードD1,D2は、有機電界発光素子ELが設けられた透明基板11上に形成されたものであってもよく、また有機電界発光素子ELが設けられた透明基板11に対して外付けされたものであってもよい。
The diodes D1 and D2 as described above are Schottky diodes, and are connected to the organic electroluminescent element EL and the two power receiving electrodes ELa and ELb ′ by a wiring layer formed on the transparent substrate 11. It has become. The diodes D1 and D2 may be formed on the transparent substrate 11 provided with the organic electroluminescent element EL, and may be external to the transparent substrate 11 provided with the organic electroluminescent element EL. It may be attached.
<給電発光システム3による給電>
以上のような構成の発光素子パネル30および給電装置100で構成された給電発光システム3における発光素子パネル30への給電は、第1実施形態と同様に実施される。すなわち、給電装置100の交流電源101をオンの状態とする。そして、図12に示すように、給電装置100の給電電極105a,105bと、発光素子パネル30の受電電極ELa,ELb’とが、一対一で対向するように、給電装置100の装置基体100a上に発光素子パネル30を載置する。 <Power supply by power supplylight emitting system 3>
Power feeding to the light emittingelement panel 30 in the power feeding light emitting system 3 configured by the light emitting element panel 30 and the power feeding apparatus 100 configured as described above is performed in the same manner as in the first embodiment. That is, the AC power supply 101 of the power supply apparatus 100 is turned on. Then, as shown in FIG. 12, the power supply electrodes 105a and 105b of the power supply device 100 and the power receiving electrodes ELa and ELb ′ of the light emitting element panel 30 face each other on the device base 100a of the power supply device 100. The light emitting element panel 30 is placed on the surface.
以上のような構成の発光素子パネル30および給電装置100で構成された給電発光システム3における発光素子パネル30への給電は、第1実施形態と同様に実施される。すなわち、給電装置100の交流電源101をオンの状態とする。そして、図12に示すように、給電装置100の給電電極105a,105bと、発光素子パネル30の受電電極ELa,ELb’とが、一対一で対向するように、給電装置100の装置基体100a上に発光素子パネル30を載置する。 <Power supply by power supply
Power feeding to the light emitting
これにより、給電装置100の給電電極105a,105bと、発光素子パネル30の受電電極ELa,ELb’との間に、13.56MHzの周期で交互に逆向きの電界Eが発生する。この際、発光素子パネル30に設けた2つのダイオードD1,D2の整流作用により、受電電極ELa,ELb’に対して順方向電圧が印加された場合と、逆方向電圧が印加された場合の両方において、有機電界発光素子ELに対して順方向の電圧が印加されて有機電界発光素子ELが発光する。
As a result, electric fields E in opposite directions are alternately generated at a period of 13.56 MHz between the power feeding electrodes 105a and 105b of the power feeding device 100 and the power receiving electrodes ELa and ELb 'of the light emitting element panel 30. At this time, both when the forward voltage is applied to the power receiving electrodes ELa and ELb ′ and when the reverse voltage is applied by the rectifying action of the two diodes D1 and D2 provided in the light emitting element panel 30. , A forward voltage is applied to the organic electroluminescent element EL, and the organic electroluminescent element EL emits light.
これにより、先の図9のグラフに示されるように、1つの有機電界発光素子ELから、連続的な発光を得ることができる。
Thereby, continuous light emission can be obtained from one organic electroluminescent element EL as shown in the graph of FIG.
<第3実施形態の効果>
以上説明した第3実施形態の給電発光システム3、発光素子パネル30、および給電装置100は、第1実施形態の構成において、有機電界発光素子ELを2つのダイオードD1,D2で構成された整流回路に組み込んだ構成である。このため、第1実施形態の効果に加えて、交流電源101から供給される電力を効率的に利用した発光を可能とする効果を得ることができる。 <Effect of the third embodiment>
The power supplylight emitting system 3, the light emitting element panel 30, and the power supply apparatus 100 of the third embodiment described above are the rectifier circuit in which the organic electroluminescent element EL is configured by two diodes D1 and D2 in the configuration of the first embodiment. It is the structure built in. For this reason, in addition to the effect of 1st Embodiment, the effect which enables the light emission which used the electric power supplied from AC power supply 101 efficiently can be acquired.
以上説明した第3実施形態の給電発光システム3、発光素子パネル30、および給電装置100は、第1実施形態の構成において、有機電界発光素子ELを2つのダイオードD1,D2で構成された整流回路に組み込んだ構成である。このため、第1実施形態の効果に加えて、交流電源101から供給される電力を効率的に利用した発光を可能とする効果を得ることができる。 <Effect of the third embodiment>
The power supply
≪第4実施形態≫
図14は、第4実施形態の給電発光システム4を示す回路図である。この図に示す給電発光システム4は、図12を用いて説明した第3実施形態の変形例であり、発光素子パネル40に2つの有機電界発光素子EL1,EL2を設けたものである。他の構成は第3実施形態と同様である。このため、ここでは発光素子パネル40の構成を説明する。 << Fourth Embodiment >>
FIG. 14 is a circuit diagram showing a power feedinglight emitting system 4 of the fourth embodiment. The power supply light emitting system 4 shown in this figure is a modification of the third embodiment described with reference to FIG. 12, and includes a light emitting element panel 40 provided with two organic electroluminescent elements EL1 and EL2. Other configurations are the same as those of the third embodiment. For this reason, the structure of the light emitting element panel 40 is demonstrated here.
図14は、第4実施形態の給電発光システム4を示す回路図である。この図に示す給電発光システム4は、図12を用いて説明した第3実施形態の変形例であり、発光素子パネル40に2つの有機電界発光素子EL1,EL2を設けたものである。他の構成は第3実施形態と同様である。このため、ここでは発光素子パネル40の構成を説明する。 << Fourth Embodiment >>
FIG. 14 is a circuit diagram showing a power feeding
<発光素子パネル40>
図15は、第4実施形態の給電発光システム4に用いる発光素子パネル40の平面模式図である。図14および図15に示す第4実施形態の発光素子パネル40は、2つの有機電界発光素子EL1,EL2と、2つのダイオードD1,D2を備えている。有機電界発光素子EL1,EL2の構成は、第1実施形態で説明した有機電界発光素子ELと同様の構成である。また2つのダイオードD1,D2は、第3実施形態で説明したダイオードD1,D2と同様の構成である。 <Light EmittingElement Panel 40>
FIG. 15 is a schematic plan view of the light emittingelement panel 40 used in the power feeding light emitting system 4 of the fourth embodiment. The light emitting element panel 40 of 4th Embodiment shown in FIG.14 and FIG.15 is provided with two organic electroluminescent elements EL1 and EL2, and two diodes D1 and D2. The configuration of the organic electroluminescent elements EL1 and EL2 is the same as that of the organic electroluminescent element EL described in the first embodiment. The two diodes D1 and D2 have the same configuration as the diodes D1 and D2 described in the third embodiment.
図15は、第4実施形態の給電発光システム4に用いる発光素子パネル40の平面模式図である。図14および図15に示す第4実施形態の発光素子パネル40は、2つの有機電界発光素子EL1,EL2と、2つのダイオードD1,D2を備えている。有機電界発光素子EL1,EL2の構成は、第1実施形態で説明した有機電界発光素子ELと同様の構成である。また2つのダイオードD1,D2は、第3実施形態で説明したダイオードD1,D2と同様の構成である。 <Light Emitting
FIG. 15 is a schematic plan view of the light emitting
そして発光素子パネル40において、これらの有機電界発光素子EL1,EL2およびダイオードD1,D2は、透明電極11上に形成された配線層によって、整流回路を構成するように接続されている。すなわち、有機電界発光素子EL1,EL2およびダイオードD1,D2は、2つの有機電界発光素子EL1,EL2間を、ダイオードD1,D2によって順方向に直列接続させることにより整流回路を構成している。詳しくは、有機電界発光素子EL1のアノードと有機電界発光素子EL2のカソードとの間に順方向にダイオードD2が直列に接続されている。また有機電界発光素子EL2のカソードと有機電界発光素子EL1のアノードとの間に順方向にダイオードD1が直列に接続されている。
In the light emitting element panel 40, these organic electroluminescent elements EL1 and EL2 and diodes D1 and D2 are connected by a wiring layer formed on the transparent electrode 11 so as to constitute a rectifier circuit. That is, the organic electroluminescent elements EL1 and EL2 and the diodes D1 and D2 form a rectifier circuit by connecting the two organic electroluminescent elements EL1 and EL2 in series in the forward direction with the diodes D1 and D2. Specifically, a diode D2 is connected in series in the forward direction between the anode of the organic electroluminescent element EL1 and the cathode of the organic electroluminescent element EL2. A diode D1 is connected in series in the forward direction between the cathode of the organic electroluminescent element EL2 and the anode of the organic electroluminescent element EL1.
そして、有機電界発光素子EL1のアノードとダイオードD2のカソードとを、一方の受電電極ELaとしている。一方、有機電界発光素子EL2のアノードとダイオードD1のカソードとを、他方の受電電極ELbとしている。
The anode of the organic electroluminescent element EL1 and the cathode of the diode D2 are used as one power receiving electrode ELa. On the other hand, the anode of the organic electroluminescent element EL2 and the cathode of the diode D1 are used as the other power receiving electrode ELb.
一例として、有機電界発光素子EL1,EL2のアノードが、透明電極12で構成されている場合、有機電界発光素子EL1,EL2の透明電極12から引き出された端子12aにおいて、シールド層16から露出している部分によって受電電極ELa,ELbが構成されている。
As an example, when the anodes of the organic electroluminescent elements EL1 and EL2 are formed of the transparent electrode 12, the terminals 12a drawn from the transparent electrodes 12 of the organic electroluminescent elements EL1 and EL2 are exposed from the shield layer 16. The power receiving electrodes ELa and ELb are configured by the portions.
この場合であっても、図15の平面模式図に示すように、これらの受電電極ELa,ELbは、平面視的に等しい面積を有していることが好ましい。
Even in this case, as shown in the schematic plan view of FIG. 15, it is preferable that these power receiving electrodes ELa and ELb have the same area in plan view.
また、有機電界発光素子EL1,EL2の対向電極14から引き出された端子14aは、受電電極として用いられることはない。このため、シールド層16は、有機電界発光素子EL1,EL2の対向電極14から引き出された端子14aまでを覆う形状であることが好ましい。
Further, the terminal 14a drawn from the counter electrode 14 of the organic electroluminescent elements EL1, EL2 is not used as a power receiving electrode. For this reason, it is preferable that the shield layer 16 has a shape covering the terminals 14a drawn from the counter electrodes 14 of the organic electroluminescent elements EL1 and EL2.
<給電発光システム4による給電>
以上のような構成の発光素子パネル40および給電装置100で構成された給電発光システム4における発光素子パネル40への給電は、第1実施形態と同様に実施される。すなわち、給電装置100の交流電源101をオンの状態とする。そして、図14に示すように、給電装置100の給電電極105a,105bと、発光素子パネル40の受電電極ELa,ELbとが、一対一で対向するように、給電装置100の装置基体100a上に発光素子パネル40を載置する。 <Power supply by power supplylight emitting system 4>
Power feeding to the light emittingelement panel 40 in the power feeding light emitting system 4 configured by the light emitting element panel 40 and the power feeding device 100 configured as described above is performed in the same manner as in the first embodiment. That is, the AC power supply 101 of the power supply apparatus 100 is turned on. Then, as shown in FIG. 14, the power supply electrodes 105 a and 105 b of the power supply device 100 and the power receiving electrodes ELa and ELb of the light emitting element panel 40 are placed on the device base 100 a of the power supply device 100 so as to face each other one-on-one. The light emitting element panel 40 is mounted.
以上のような構成の発光素子パネル40および給電装置100で構成された給電発光システム4における発光素子パネル40への給電は、第1実施形態と同様に実施される。すなわち、給電装置100の交流電源101をオンの状態とする。そして、図14に示すように、給電装置100の給電電極105a,105bと、発光素子パネル40の受電電極ELa,ELbとが、一対一で対向するように、給電装置100の装置基体100a上に発光素子パネル40を載置する。 <Power supply by power supply
Power feeding to the light emitting
これにより、給電装置100の給電電極105a,105bと、発光素子パネル40の受電電極ELa,ELbとの間に、13.56MHzの周期で交互に逆向きの電界Eが発生する。この際、発光素子パネル40に設けた2つのダイオードD1,D2の整流作用により、受電電極ELa,ELbに対して順方向電圧が印加された場合と、逆方向電圧が印加された場合の両方において、有機電界発光素子EL1,EL2に対して順方向の電圧が印加されて有機電界発光素子EL1,EL2が発光する。
As a result, electric fields E in opposite directions are alternately generated at a period of 13.56 MHz between the power feeding electrodes 105a and 105b of the power feeding device 100 and the power receiving electrodes ELa and ELb of the light emitting element panel 40. At this time, both when the forward voltage is applied to the power receiving electrodes ELa and ELb and when the reverse voltage is applied by the rectifying action of the two diodes D1 and D2 provided in the light emitting element panel 40. Then, a forward voltage is applied to the organic electroluminescent elements EL1 and EL2, and the organic electroluminescent elements EL1 and EL2 emit light.
これにより、先の図9のグラフに示されるように、2つの有機電界発光素子EL1,EL2から、連続的な発光を得ることができる。
Thereby, continuous light emission can be obtained from the two organic electroluminescent elements EL1, EL2 as shown in the graph of FIG.
<第4実施形態の効果>
以上説明した第4実施形態の給電発光システム4、発光素子パネル40、および給電装置100は、2つの有機電界発光素子EL1,EL2と2つのダイオードD1,D2とで整流回路を構成している。このため、第3実施形態と同様に、交流電源101から供給される電力を効率的に利用した発光を可能とする効果を得ることができ、さらに第3実施形態の給電発光システム3と比較して、有機電界発光素子EL1,EL2の合計で高輝度の発光を得ることができる。 <Effects of Fourth Embodiment>
The feedlight emitting system 4, the light emitting element panel 40, and the feed device 100 of the fourth embodiment described above constitute a rectifier circuit with two organic electroluminescent elements EL 1 and EL 2 and two diodes D 1 and D 2. For this reason, as in the third embodiment, it is possible to obtain an effect of enabling light emission that efficiently uses the power supplied from the AC power supply 101, and further, compared with the power supply light emitting system 3 of the third embodiment. Thus, high luminance light emission can be obtained in total of the organic electroluminescent elements EL1 and EL2.
以上説明した第4実施形態の給電発光システム4、発光素子パネル40、および給電装置100は、2つの有機電界発光素子EL1,EL2と2つのダイオードD1,D2とで整流回路を構成している。このため、第3実施形態と同様に、交流電源101から供給される電力を効率的に利用した発光を可能とする効果を得ることができ、さらに第3実施形態の給電発光システム3と比較して、有機電界発光素子EL1,EL2の合計で高輝度の発光を得ることができる。 <Effects of Fourth Embodiment>
The feed
≪第4実施形態の変形例≫
図16は、第4実施形態の給電発光システム4の変形例を示す回路図である。図16に示す変形例の給電発光システム4’は、2つの有機電界発光素子EL1,EL2のカソード側の電極を、受電電極ELa,ELbとした構成である。そして、有機電界発光素子EL1,EL2およびダイオードD1,D2は、2つの有機電界発光素子EL1,EL2間を、ダイオードD1,D2によって順方向に直列接続させることにより整流回路を構成していることは第4実施形態と同様である。 << Modification of Fourth Embodiment >>
FIG. 16 is a circuit diagram illustrating a modification of the power feedinglight emitting system 4 of the fourth embodiment. The power feeding light emitting system 4 ′ of the modification shown in FIG. 16 has a configuration in which the cathode electrodes of the two organic electroluminescent elements EL1 and EL2 are power receiving electrodes ELa and ELb. The organic electroluminescent elements EL1 and EL2 and the diodes D1 and D2 constitute a rectifier circuit by connecting the two organic electroluminescent elements EL1 and EL2 in series in the forward direction with the diodes D1 and D2. This is the same as in the fourth embodiment.
図16は、第4実施形態の給電発光システム4の変形例を示す回路図である。図16に示す変形例の給電発光システム4’は、2つの有機電界発光素子EL1,EL2のカソード側の電極を、受電電極ELa,ELbとした構成である。そして、有機電界発光素子EL1,EL2およびダイオードD1,D2は、2つの有機電界発光素子EL1,EL2間を、ダイオードD1,D2によって順方向に直列接続させることにより整流回路を構成していることは第4実施形態と同様である。 << Modification of Fourth Embodiment >>
FIG. 16 is a circuit diagram illustrating a modification of the power feeding
このような構成の給電発光システム4’であっても、第4実施形態の給電発光システム4と同様の効果を得ることができる。
Even with the power supply light emitting system 4 ′ having such a configuration, the same effect as that of the power supply light emitting system 4 of the fourth embodiment can be obtained.
≪第5実施形態≫
図17は、第5実施形態の給電発光システム5を示す断面模式図である。また図18は、第5実施形態の給電発光システム5に用いる発光素子パネル50の平面模式図である。尚、図17は、図18におけるA-A断面に相当する部分の断面模式図である。 «Fifth embodiment»
FIG. 17 is a schematic cross-sectional view showing the power feeding light emitting system 5 of the fifth embodiment. FIG. 18 is a schematic plan view of the light emittingelement panel 50 used in the power feeding light emitting system 5 of the fifth embodiment. FIG. 17 is a schematic sectional view of a portion corresponding to the AA section in FIG.
図17は、第5実施形態の給電発光システム5を示す断面模式図である。また図18は、第5実施形態の給電発光システム5に用いる発光素子パネル50の平面模式図である。尚、図17は、図18におけるA-A断面に相当する部分の断面模式図である。 «Fifth embodiment»
FIG. 17 is a schematic cross-sectional view showing the power feeding light emitting system 5 of the fifth embodiment. FIG. 18 is a schematic plan view of the light emitting
これらの図に示す給電発光システム5は、図14および図15を用いて説明した第4実施形態の変形例であり、発光素子パネル50の構成に特徴がある。
The power supply light emitting system 5 shown in these drawings is a modification of the fourth embodiment described with reference to FIGS. 14 and 15, and is characterized in the configuration of the light emitting element panel 50.
<発光素子パネル50>
すなわち発光素子パネル50は、2つの有機電界発光素子EL1,EL2における透明電極12の端子12a(アノード)が、それぞれの有機電界発光素子EL1,EL2に対して独立して設けられたシールド層16に接続されたものである。これにより、端子12aとシールド層16とで、受電電極ELa”,ELb”が構成されている。この場合、シールド層16は、有機電界発光素子EL1,EL2をそれぞれ独立に覆う形状であると共に、それぞれが対向電極14から引き出された端子14aまでを覆う形状であることが好ましい。 <Light EmittingElement Panel 50>
That is, in the light emittingelement panel 50, the terminal 12a (anode) of the transparent electrode 12 in the two organic electroluminescent elements EL1 and EL2 is provided on the shield layer 16 provided independently for each of the organic electroluminescent elements EL1 and EL2. It is connected. Thus, the terminal 12a and the shield layer 16 constitute the power receiving electrodes ELa ″ and ELb ″. In this case, the shield layer 16 preferably has a shape that independently covers the organic electroluminescent elements EL1 and EL2, and a shape that covers each of the terminals 14a drawn from the counter electrode 14.
すなわち発光素子パネル50は、2つの有機電界発光素子EL1,EL2における透明電極12の端子12a(アノード)が、それぞれの有機電界発光素子EL1,EL2に対して独立して設けられたシールド層16に接続されたものである。これにより、端子12aとシールド層16とで、受電電極ELa”,ELb”が構成されている。この場合、シールド層16は、有機電界発光素子EL1,EL2をそれぞれ独立に覆う形状であると共に、それぞれが対向電極14から引き出された端子14aまでを覆う形状であることが好ましい。 <Light Emitting
That is, in the light emitting
<給電発光システム5による給電>
以上のような構成の発光素子パネル50および給電装置100で構成された給電発光システム5における発光素子パネル50への給電は、第1実施形態と同様に実施される。すなわち、給電装置100の交流電源101をオンの状態とする。そして、図17に示すように、給電装置100の給電電極105a,105bと、発光素子パネル50の受電電極ELa”,ELb”とが、一対一で対向するように、給電装置100の装置基体100a上に発光素子パネル50を載置する。 <Power supply by power supply light emitting system 5>
The power feeding to the light emittingelement panel 50 in the power feeding light emitting system 5 configured by the light emitting element panel 50 and the power feeding device 100 configured as described above is performed in the same manner as in the first embodiment. That is, the AC power supply 101 of the power supply apparatus 100 is turned on. Then, as shown in FIG. 17, the device base 100 a of the power feeding device 100 so that the power feeding electrodes 105 a and 105 b of the power feeding device 100 and the power receiving electrodes ELa ″ and ELb ″ of the light emitting element panel 50 face each other one to one. The light emitting element panel 50 is mounted thereon.
以上のような構成の発光素子パネル50および給電装置100で構成された給電発光システム5における発光素子パネル50への給電は、第1実施形態と同様に実施される。すなわち、給電装置100の交流電源101をオンの状態とする。そして、図17に示すように、給電装置100の給電電極105a,105bと、発光素子パネル50の受電電極ELa”,ELb”とが、一対一で対向するように、給電装置100の装置基体100a上に発光素子パネル50を載置する。 <Power supply by power supply light emitting system 5>
The power feeding to the light emitting
これにより、第4実施形態と同様に、2つの有機電界発光素子EL1,EL2から、絶え間なく連続的な発光を得ることができる。
Thus, as in the fourth embodiment, continuous light emission can be obtained continuously from the two organic electroluminescent elements EL1, EL2.
<第5実施形態の効果>
以上説明した第5実施形態の給電発光システム5、発光素子パネル50、および給電装置100は、発光素子パネル50において端子12aとシールド層16とを接続して受電電極ELa”,ELb”とした構成である。このため、発光素子パネル50の受電電極ELa”,ELb”の電極面を広くし、受電電極ELa”,ELb”と給電電極105a,105bとの間に生じる電界Eの強度を高めることができる。これにより高輝度で有機電界発光素子EL1,EL2を発光させることが可能になる。 <Effect of Fifth Embodiment>
The power feeding light emitting system 5, the light emittingelement panel 50, and the power feeding apparatus 100 according to the fifth embodiment described above are configured as the power receiving electrodes ELa ″ and ELb ″ by connecting the terminal 12 a and the shield layer 16 in the light emitting element panel 50. It is. Therefore, the electrode surfaces of the power receiving electrodes ELa ″ and ELb ″ of the light emitting element panel 50 can be widened to increase the intensity of the electric field E generated between the power receiving electrodes ELa ″ and ELb ″ and the power feeding electrodes 105a and 105b. As a result, the organic electroluminescent elements EL1 and EL2 can emit light with high luminance.
以上説明した第5実施形態の給電発光システム5、発光素子パネル50、および給電装置100は、発光素子パネル50において端子12aとシールド層16とを接続して受電電極ELa”,ELb”とした構成である。このため、発光素子パネル50の受電電極ELa”,ELb”の電極面を広くし、受電電極ELa”,ELb”と給電電極105a,105bとの間に生じる電界Eの強度を高めることができる。これにより高輝度で有機電界発光素子EL1,EL2を発光させることが可能になる。 <Effect of Fifth Embodiment>
The power feeding light emitting system 5, the light emitting
≪第6実施形態≫
図19は、第6実施形態の給電発光システム6を説明する平面模式図である。この図に示す第6実施形態の給電発光システム6が、図1を用いて説明した給電発光システム1と異なるところは、発光素子パネル60の構成および給電装置100”の構成にある。以下、発光素子パネル60の構成と、これに対応する給電装置100”の構成を説明する。 << Sixth Embodiment >>
FIG. 19 is a schematic plan view illustrating the power feedinglight emitting system 6 of the sixth embodiment. The feeding light emitting system 6 of the sixth embodiment shown in this figure is different from the feeding light emitting system 1 described with reference to FIG. 1 in the configuration of the light emitting element panel 60 and the configuration of the feeding device 100 ″. The configuration of the element panel 60 and the configuration of the power supply apparatus 100 ″ corresponding thereto will be described.
図19は、第6実施形態の給電発光システム6を説明する平面模式図である。この図に示す第6実施形態の給電発光システム6が、図1を用いて説明した給電発光システム1と異なるところは、発光素子パネル60の構成および給電装置100”の構成にある。以下、発光素子パネル60の構成と、これに対応する給電装置100”の構成を説明する。 << Sixth Embodiment >>
FIG. 19 is a schematic plan view illustrating the power feeding
<発光素子パネル60>
図19に示す第6実施形態の発光素子パネル60は、2つの有機電界発光素子EL1,EL2と、4つのダイオードD1~D4を備えている。有機電界発光素子EL1,EL2の構成は、第1実施形態で説明した有機電界発光素子ELと同様の構成である。また4つのダイオードD1~D4は、第3実施形態で説明したダイオードD1,D2と同様の構成である。 <Light Emitting Element Panel 60>
The light emitting element panel 60 of the sixth embodiment shown in FIG. 19 includes two organic electroluminescent elements EL1 and EL2 and four diodes D1 to D4. The configuration of the organic electroluminescent elements EL1 and EL2 is the same as that of the organic electroluminescent element EL described in the first embodiment. The four diodes D1 to D4 have the same configuration as the diodes D1 and D2 described in the third embodiment.
図19に示す第6実施形態の発光素子パネル60は、2つの有機電界発光素子EL1,EL2と、4つのダイオードD1~D4を備えている。有機電界発光素子EL1,EL2の構成は、第1実施形態で説明した有機電界発光素子ELと同様の構成である。また4つのダイオードD1~D4は、第3実施形態で説明したダイオードD1,D2と同様の構成である。 <Light Emitting Element Panel 60>
The light emitting element panel 60 of the sixth embodiment shown in FIG. 19 includes two organic electroluminescent elements EL1 and EL2 and four diodes D1 to D4. The configuration of the organic electroluminescent elements EL1 and EL2 is the same as that of the organic electroluminescent element EL described in the first embodiment. The four diodes D1 to D4 have the same configuration as the diodes D1 and D2 described in the third embodiment.
そして発光素子パネル60において、これらの有機電界発光素子EL1,EL2およびダイオードD1~D4は、透明電極11上に形成された配線層によって、整流回路を構成するように接続されている。すなわち、有機電界発光素子EL1,EL2およびダイオードD1~D4は、2つの有機電界発光素子EL1,EL2間を、ダイオードD1~D4によって順方向に直列接続させることにより、整流回路を構成している。
In the light emitting element panel 60, the organic electroluminescent elements EL1 and EL2 and the diodes D1 to D4 are connected by a wiring layer formed on the transparent electrode 11 so as to constitute a rectifier circuit. That is, the organic electroluminescent elements EL1 and EL2 and the diodes D1 to D4 form a rectifier circuit by connecting the two organic electroluminescent elements EL1 and EL2 in series in the forward direction by the diodes D1 to D4.
詳しくは、有機電界発光素子EL1のアノードと有機電界発光素子EL2のカソードとの間に、順方向に2つのダイオードD1,D2が直列に接続されている。さらに有機電界発光素子EL1のカソードと有機電界発光素子EL2のアノードとの間に順方向に2つのダイオードD3,D4が直列に接続されている。
Specifically, two diodes D1 and D2 are connected in series in the forward direction between the anode of the organic electroluminescent element EL1 and the cathode of the organic electroluminescent element EL2. Further, two diodes D3 and D4 are connected in series in the forward direction between the cathode of the organic electroluminescent element EL1 and the anode of the organic electroluminescent element EL2.
そして、有機電界発光素子EL1,EL2のアノードに接続された各電極層が受電電極ELa,ELcを構成している。さらに2つのダイオードD1,D2の間に接続された電極層が受電電極ELbを構成し、他の2つのダイオードD3,D4間に接続された電極層が受電電極ELdを構成している。ここでは、給電装置100”に設けられたホット側の給電電極105aとアース側の給電電極105bとに対応する一対の受電電極が、4つの受電電極ELa~ELdに分割されているのである。
The electrode layers connected to the anodes of the organic electroluminescent elements EL1 and EL2 constitute power receiving electrodes ELa and ELc. Further, the electrode layer connected between the two diodes D1 and D2 constitutes the power receiving electrode ELb, and the electrode layer connected between the other two diodes D3 and D4 constitutes the power receiving electrode ELd. Here, the pair of power receiving electrodes corresponding to the hot-side power feeding electrode 105a and the ground-side power feeding electrode 105b provided in the power feeding device 100 ″ is divided into four power receiving electrodes ELa to ELd.
これらの受電電極ELa~ELdは、一方向の幅が同程度の電極層によって構成され、一方向に配列されている。その配置状態は、有機電界発光素子EL1,EL2のアノードに接続された受電電極ELa,ELcと、各2つのダイオードD1,D2の間およびダイオードD3,D4の間に接続された受電電極ELb,ELdとが、一方向に対して交互に配置された状態である。尚、図面においては、受電電極ELa~ELdを一方向に配列した構成を図示したが、これらの受電電極ELa~ELdは、一方向にずらして配置されていればよく、素子のレイアウトによっては、多方向にもずらして配置されていてもよい。
These power receiving electrodes ELa to ELd are composed of electrode layers having the same width in one direction and are arranged in one direction. The arrangement state is such that the power receiving electrodes ELa and ELc connected to the anodes of the organic electroluminescent elements EL1 and EL2 and the power receiving electrodes ELb and ELd connected between the two diodes D1 and D2 and between the diodes D3 and D4. Are alternately arranged in one direction. In the drawing, the configuration in which the power receiving electrodes ELa to ELd are arranged in one direction is shown. However, these power receiving electrodes ELa to ELd may be arranged so as to be shifted in one direction, and depending on the layout of the element, They may be arranged shifted in multiple directions.
<給電装置100”>
図19に示す給電装置100”は、装置基体100a上に、ホット側の給電電極105aと、アース側の給電電極105bとを、交互に複数配置した構成であり、交流電源101およびマッチング回路103の構成は第1実施形態と同様である。 <Power supply device 100 ">
Apower supply device 100 ″ shown in FIG. 19 has a configuration in which a plurality of hot-side power supply electrodes 105a and ground-side power supply electrodes 105b are alternately arranged on a device base 100a. The configuration is the same as in the first embodiment.
図19に示す給電装置100”は、装置基体100a上に、ホット側の給電電極105aと、アース側の給電電極105bとを、交互に複数配置した構成であり、交流電源101およびマッチング回路103の構成は第1実施形態と同様である。 <
A
ここで特徴的なことは、各給電電極105a,105bの配置ピッチである。各給電電極105a,105bの配置ピッチは、受電電極ELa~ELdの配置ピッチの2倍程度であることとする。また、各給電電極105a,105bは、平面視的に等しい幅を有していることが好ましい。
Here, what is characteristic is the arrangement pitch of the power supply electrodes 105a and 105b. It is assumed that the arrangement pitch of the power supply electrodes 105a and 105b is about twice the arrangement pitch of the power receiving electrodes ELa to ELd. In addition, each of the power supply electrodes 105a and 105b preferably has an equal width in plan view.
<給電発光システム6による給電>
以上のような構成の発光素子パネル60および給電装置100”で構成された給電発光システム6における発光素子パネル60への給電は、第1実施形態と同様に実施される。すなわち、給電装置100”の交流電源101をオンの状態とする。そして、図19に示すように、給電装置100”の装置基体100a上に発光素子パネル60を載置する。 <Power supply by power supplylight emitting system 6>
Power feeding to the light emitting element panel 60 in the power feedinglight emitting system 6 including the light emitting element panel 60 and the power feeding device 100 ″ configured as described above is performed in the same manner as in the first embodiment. That is, the power feeding device 100 ″. The AC power supply 101 is turned on. And as shown in FIG. 19, the light emitting element panel 60 is mounted on the apparatus base | substrate 100a of electric power feeding apparatus 100 ''.
以上のような構成の発光素子パネル60および給電装置100”で構成された給電発光システム6における発光素子パネル60への給電は、第1実施形態と同様に実施される。すなわち、給電装置100”の交流電源101をオンの状態とする。そして、図19に示すように、給電装置100”の装置基体100a上に発光素子パネル60を載置する。 <Power supply by power supply
Power feeding to the light emitting element panel 60 in the power feeding
この場合、給電装置100”における給電電極105a,105bの配列方向と、発光素子パネル60における受電電極ELa~ELdの配列方向とを一致させることが重要である。これにより、給電装置100”の給電電極105a,105bと、発光素子パネル60の受電電極ELa~Edとの間に電界Eが発生し、交流電源101から供給される交流電圧の周期にあわせて、有機電界発光素子EL1,EL2の何れかに対して順方向の電流が流れた場合に発光が生じる。
In this case, it is important that the arrangement direction of the power feeding electrodes 105a and 105b in the power feeding device 100 ″ and the arrangement direction of the power receiving electrodes ELa to ELd in the light emitting element panel 60 are matched. An electric field E is generated between the electrodes 105a and 105b and the power receiving electrodes ELa to Ed of the light emitting element panel 60, and any of the organic electroluminescent elements EL1 and EL2 is selected in accordance with the period of the AC voltage supplied from the AC power supply 101. On the other hand, light emission occurs when a forward current flows.
図19には、一例としてホット側の給電電極105aにマイナス(-)、アース側の給電電極105bに(+)が印加されている状態を示す。この図に示すように、給電電極105a,105bの配列方向と受電電極ELa~ELdの配列方向とが一致していれば、図中の破線で示すルートで整流回路に電流が流れ、有機電界発光素子EL1,EL2の何れか一方が発光する。
FIG. 19 shows, for example, a state in which minus (−) is applied to the hot-side power supply electrode 105a and (+) is applied to the ground-side power supply electrode 105b. As shown in this figure, when the arrangement direction of the power feeding electrodes 105a and 105b and the arrangement direction of the power receiving electrodes ELa to ELd coincide with each other, a current flows through the rectifier circuit along a route indicated by a broken line in the figure, and organic electroluminescence Either one of the elements EL1 and EL2 emits light.
この場合、図中の破線で示すルート以外にも電流が流れる場合があるが、ルート間の抵抗の差により、より抵抗が大きい破線で示したルートで放電が持続するため、破線のルートがメインの電流ルートとなる。例えば、表示素子パネル60bの場合、受電電極ELcと受電電極ELdとの間にも電流が流れる。また表示素子パネル60dの場合、受電電極ELaと受電電極ELbとの間にも電流が流れる。しかしながら、これらの電流ルートは、破線で示したルートよりも抵抗が小さいため、放電が早く終了して電流が流れなくなるのである。
In this case, current may flow in addition to the route indicated by the broken line in the figure, but the discharge continues in the route indicated by the broken line having higher resistance due to the difference in resistance between the routes. Current route. For example, in the case of the display element panel 60b, a current also flows between the power receiving electrode ELc and the power receiving electrode ELd. In the case of the display element panel 60d, a current also flows between the power receiving electrode ELa and the power receiving electrode ELb. However, since these current routes have smaller resistance than the route indicated by the broken line, the discharge ends earlier and the current does not flow.
<第6実施形態の効果>
以上説明した第6実施形態の給電発光システム6、発光素子パネル60、および給電装置100”であっても、他の実施形態と同様に発光素子パネル60側および給電装置100”側に、コイル等を設ける必要がなく、発光素子パネル60および給電装置100”の薄型化、さらには給電発光システム6の薄型化を維持することが可能である。さらに、この給電発光システム6では、給電装置100”対する発光素子パネル60の載置状態の自由度が高い。 <Effects of Sixth Embodiment>
Even in the power supplylight emitting system 6, the light emitting element panel 60, and the power supply apparatus 100 ″ of the sixth embodiment described above, coils and the like are provided on the light emitting element panel 60 side and the power supply apparatus 100 ″ side as in the other embodiments. It is possible to reduce the thickness of the light emitting element panel 60 and the power feeding device 100 ″, and further to maintain the thickness of the power feeding light emitting system 6. In the power feeding light emitting system 6, the power feeding device 100 ″ can be maintained. The degree of freedom of the mounting state of the light emitting element panel 60 is high.
以上説明した第6実施形態の給電発光システム6、発光素子パネル60、および給電装置100”であっても、他の実施形態と同様に発光素子パネル60側および給電装置100”側に、コイル等を設ける必要がなく、発光素子パネル60および給電装置100”の薄型化、さらには給電発光システム6の薄型化を維持することが可能である。さらに、この給電発光システム6では、給電装置100”対する発光素子パネル60の載置状態の自由度が高い。 <Effects of Sixth Embodiment>
Even in the power supply
≪第7実施形態≫
図20は、第7実施形態の給電発光システム7を説明する平面模式図である。この図に示す第7実施形態の給電発光システム7が、図19を用いて説明した第6実施形態の給電発光システム6と異なるところは、発光素子パネル70に有機電界発光素子ELを1つのみ設けたところにあり、他の構成は第6実施形態と同様である。このため、ここでは発光素子パネル70の構成を説明する。 << Seventh Embodiment >>
FIG. 20 is a schematic plan view illustrating the power feeding light emitting system 7 of the seventh embodiment. The feeding light emitting system 7 of the seventh embodiment shown in this figure is different from the feeding light emittingsystem 6 of the sixth embodiment described with reference to FIG. 19 in that only one organic electroluminescent element EL is provided in the light emitting element panel 70. The other configuration is the same as that of the sixth embodiment. For this reason, the structure of the light emitting element panel 70 is demonstrated here.
図20は、第7実施形態の給電発光システム7を説明する平面模式図である。この図に示す第7実施形態の給電発光システム7が、図19を用いて説明した第6実施形態の給電発光システム6と異なるところは、発光素子パネル70に有機電界発光素子ELを1つのみ設けたところにあり、他の構成は第6実施形態と同様である。このため、ここでは発光素子パネル70の構成を説明する。 << Seventh Embodiment >>
FIG. 20 is a schematic plan view illustrating the power feeding light emitting system 7 of the seventh embodiment. The feeding light emitting system 7 of the seventh embodiment shown in this figure is different from the feeding light emitting
<発光素子パネル70>
図20に示す第7実施形態の発光素子パネル70は、1つの有機電界発光素子ELと、4つのダイオードD1~D4を備えている。有機電界発光素子ELの構成は、第1実施形態で説明した有機電界発光素子ELと同様の構成である。また4つのダイオードD1~D4は、第3実施形態で説明したダイオードD1,D2と同様の構成である。 <Light emitting element panel 70>
The light emitting element panel 70 according to the seventh embodiment shown in FIG. 20 includes one organic electroluminescent element EL and four diodes D1 to D4. The configuration of the organic electroluminescent element EL is the same as that of the organic electroluminescent element EL described in the first embodiment. The four diodes D1 to D4 have the same configuration as the diodes D1 and D2 described in the third embodiment.
図20に示す第7実施形態の発光素子パネル70は、1つの有機電界発光素子ELと、4つのダイオードD1~D4を備えている。有機電界発光素子ELの構成は、第1実施形態で説明した有機電界発光素子ELと同様の構成である。また4つのダイオードD1~D4は、第3実施形態で説明したダイオードD1,D2と同様の構成である。 <Light emitting element panel 70>
The light emitting element panel 70 according to the seventh embodiment shown in FIG. 20 includes one organic electroluminescent element EL and four diodes D1 to D4. The configuration of the organic electroluminescent element EL is the same as that of the organic electroluminescent element EL described in the first embodiment. The four diodes D1 to D4 have the same configuration as the diodes D1 and D2 described in the third embodiment.
これらの有機電界発光素子ELおよびダイオードD1~D4は、透明電極11上に形成された配線層によって、整流回路を構成するように接続されている。すなわち、有機電界発光素子ELの一対の電極、すなわちアノードとカソードとの間を、ダイオードD1~D4によって順方向に直列接続させることにより、整流回路を構成している。
These organic electroluminescent elements EL and diodes D1 to D4 are connected by a wiring layer formed on the transparent electrode 11 so as to constitute a rectifier circuit. That is, a rectifier circuit is configured by serially connecting a pair of electrodes of the organic electroluminescent element EL, that is, an anode and a cathode in series in the forward direction by the diodes D1 to D4.
そして、ダイオードD1~D4の間に接続された4つの電極層が、受電電極ELa~ELdを構成している。ここでは、給電装置100”に設けられたホット側の給電電極105aとアース側の給電電極105bとに対応する一対の受電電極が、4つの受電電極ELa~ELdに分割されているのである。4つの電極層のうちの1つは、有機電界発光素子ELのアノードまたはカソードのうち何れか一方であり、図示した例ではアノードである。
The four electrode layers connected between the diodes D1 to D4 constitute the power receiving electrodes ELa to ELd. Here, the pair of power receiving electrodes corresponding to the hot-side power feeding electrode 105a and the ground-side power feeding electrode 105b provided in the power feeding apparatus 100 ″ is divided into four power receiving electrodes ELa to ELd. One of the two electrode layers is either the anode or the cathode of the organic electroluminescent element EL, and is the anode in the illustrated example.
これらの受電電極ELa~ELdは、一方向の幅が同程度の電極層によって構成され、一方向に配列されている。その配置状態は、有機電界発光素子ELのカソードに接続された受電電極ELcと、有機電界発光素子ELのアノード側に接続された2つのダイオードD1,D2間に接続された受電電極ELbとを、他の受電電極ELa,ELdで挟むように一方向に配置された状態である。尚、図面においては、受電電極ELa~ELdを一方向に配列して構成を図示したが、これらの受電電極ELa~ELdは、一方向にずらして配置されていればよく、素子のレイアウトによっては、多方向にもずらして配置されていてもよい。
These power receiving electrodes ELa to ELd are composed of electrode layers having the same width in one direction and are arranged in one direction. The arrangement state includes a power receiving electrode ELc connected to the cathode of the organic electroluminescent element EL, and a power receiving electrode ELb connected between the two diodes D1 and D2 connected to the anode side of the organic electroluminescent element EL. In this state, the electrodes are arranged in one direction so as to be sandwiched between the other power receiving electrodes ELa and ELd. In the drawing, the configuration is shown in which the power receiving electrodes ELa to ELd are arranged in one direction. However, the power receiving electrodes ELa to ELd may be arranged so as to be shifted in one direction, depending on the element layout. Alternatively, they may be arranged so as to be shifted in multiple directions.
<給電発光システム7による給電>
以上のような構成の発光素子パネル70および給電装置100”で構成された給電発光システム7における発光素子パネル70への給電は、第6実施形態と同様に実施される。 <Power feeding by the power feeding light emitting system 7>
Power feeding to the light emitting element panel 70 in the power feeding light emitting system 7 configured by the light emitting element panel 70 and thepower feeding device 100 ″ having the above configuration is performed in the same manner as in the sixth embodiment.
以上のような構成の発光素子パネル70および給電装置100”で構成された給電発光システム7における発光素子パネル70への給電は、第6実施形態と同様に実施される。 <Power feeding by the power feeding light emitting system 7>
Power feeding to the light emitting element panel 70 in the power feeding light emitting system 7 configured by the light emitting element panel 70 and the
<第7実施形態の効果>
以上説明した第7実施形態の給電発光システム7、発光素子パネル70、および給電装置100”であっても、第6実施形態と同様の効果を得ることができる。 <Effect of 7th Embodiment>
Even with the power feeding light emitting system 7, the light emitting element panel 70, and thepower feeding apparatus 100 ″ of the seventh embodiment described above, the same effect as that of the sixth embodiment can be obtained.
以上説明した第7実施形態の給電発光システム7、発光素子パネル70、および給電装置100”であっても、第6実施形態と同様の効果を得ることができる。 <Effect of 7th Embodiment>
Even with the power feeding light emitting system 7, the light emitting element panel 70, and the
≪第8実施形態≫
図21は、第8実施形態の給電発光システム8を説明する平面模式図である。この図に示す第8実施形態の給電発光システム8が、図19を用いて説明した第6実施形態の給電発光システム6と異なるところは、発光素子パネル80に2つの有機電界発光素子EL1,EL2と、2つのダイオードD1,D2を設けたところにあり、他の構成は第6実施形態と同様である。このため、ここでは発光素子パネル80の構成を説明する。 << Eighth Embodiment >>
FIG. 21 is a schematic plan view illustrating the power feedinglight emitting system 8 of the eighth embodiment. The feeding light emitting system 8 of the eighth embodiment shown in this figure is different from the feeding light emitting system 6 of the sixth embodiment described with reference to FIG. 19 in that the light emitting element panel 80 includes two organic electroluminescent elements EL1, EL2. The two diodes D1 and D2 are provided, and the other configuration is the same as that of the sixth embodiment. For this reason, the structure of the light emitting element panel 80 is demonstrated here.
図21は、第8実施形態の給電発光システム8を説明する平面模式図である。この図に示す第8実施形態の給電発光システム8が、図19を用いて説明した第6実施形態の給電発光システム6と異なるところは、発光素子パネル80に2つの有機電界発光素子EL1,EL2と、2つのダイオードD1,D2を設けたところにあり、他の構成は第6実施形態と同様である。このため、ここでは発光素子パネル80の構成を説明する。 << Eighth Embodiment >>
FIG. 21 is a schematic plan view illustrating the power feeding
<発光素子パネル80>
図21に示す第8実施形態の発光素子パネル80は、2つの有機電界発光素子EL1,EL2と、2つのダイオードD1,D2を備えている。有機電界発光素子EL1,E2の構成は、第1実施形態で説明した有機電界発光素子ELと同様の構成である。また2つのダイオードD1,D2は、第3実施形態で説明したダイオードD1,D2と同様の構成である。 <Light Emitting Element Panel 80>
The light emitting element panel 80 according to the eighth embodiment shown in FIG. 21 includes two organic electroluminescent elements EL1 and EL2 and two diodes D1 and D2. The configuration of the organic electroluminescent elements EL1, E2 is the same as that of the organic electroluminescent element EL described in the first embodiment. The two diodes D1 and D2 have the same configuration as the diodes D1 and D2 described in the third embodiment.
図21に示す第8実施形態の発光素子パネル80は、2つの有機電界発光素子EL1,EL2と、2つのダイオードD1,D2を備えている。有機電界発光素子EL1,E2の構成は、第1実施形態で説明した有機電界発光素子ELと同様の構成である。また2つのダイオードD1,D2は、第3実施形態で説明したダイオードD1,D2と同様の構成である。 <Light Emitting Element Panel 80>
The light emitting element panel 80 according to the eighth embodiment shown in FIG. 21 includes two organic electroluminescent elements EL1 and EL2 and two diodes D1 and D2. The configuration of the organic electroluminescent elements EL1, E2 is the same as that of the organic electroluminescent element EL described in the first embodiment. The two diodes D1 and D2 have the same configuration as the diodes D1 and D2 described in the third embodiment.
これらの有機電界発光素子EL1,EL2およびダイオードD1,D2は、透明電極11上に形成された配線層によって、整流回路を構成するように接続されている。すなわち、2つの有機電界発光素子EL1,EL2間を、ダイオードD1,D2によって順方向に直列接続させることにより、整流回路を構成している。
These organic electroluminescent elements EL1, EL2 and diodes D1, D2 are connected by a wiring layer formed on the transparent electrode 11 so as to constitute a rectifier circuit. That is, the rectifier circuit is configured by connecting the two organic electroluminescent elements EL1 and EL2 in series in the forward direction by the diodes D1 and D2.
詳しくは、有機電界発光素子EL1のアノードと有機電界発光素子EL2のカソードとの間に、順方向にダイオードD1が直列に接続されている。さらに有機電界発光素子EL1のカソードと有機電界発光素子EL2のアノードとの間に順方向にダイオードD2が直列に接続されている。
Specifically, a diode D1 is connected in series in the forward direction between the anode of the organic electroluminescent element EL1 and the cathode of the organic electroluminescent element EL2. Furthermore, a diode D2 is connected in series in the forward direction between the cathode of the organic electroluminescent element EL1 and the anode of the organic electroluminescent element EL2.
そして、有機電界発光素子EL1,EL2およびダイオードD1,D2の間に接続された4つの電極層が、受電電極ELa~ELdを構成している。ここでは、給電装置100”に設けられたホット側の給電電極105aとアース側の給電電極105bとに対応する一対の受電電極が、4つの受電電極ELa~ELdに分割されているのである。
The four electrode layers connected between the organic electroluminescent elements EL1 and EL2 and the diodes D1 and D2 constitute power receiving electrodes ELa to ELd. Here, the pair of power receiving electrodes corresponding to the hot-side power feeding electrode 105a and the ground-side power feeding electrode 105b provided in the power feeding device 100 ″ is divided into four power receiving electrodes ELa to ELd.
そして、有機電界発光素子EL1,EL2のアノードに接続された各電極層が受電電極ELa,ELcを構成している。さらに有機電界発光素子EL1,EL2のカソードに接続された各電極層が受電電極ELb,ELdを構成している。ここでは、給電装置100”に設けられたホット側の給電電極105aとアース側の給電電極105bとに対応する一対の受電電極が、4つの受電電極ELa~ELdに分割されているのである。
The electrode layers connected to the anodes of the organic electroluminescent elements EL1 and EL2 constitute power receiving electrodes ELa and ELc. Further, the electrode layers connected to the cathodes of the organic electroluminescent elements EL1 and EL2 constitute power receiving electrodes ELb and ELd. Here, the pair of power receiving electrodes corresponding to the hot-side power feeding electrode 105a and the ground-side power feeding electrode 105b provided in the power feeding device 100 ″ is divided into four power receiving electrodes ELa to ELd.
これらの受電電極ELa~ELdは、一方向の幅が同程度の電極層によって構成され、一方向に配列されている。その配置状態は、有機電界発光素子EL1,EL2のアノードに接続された受電電極ELa,ELcと、カソードに接続された受電電極ELb,ELdとが、一方向に対して交互に配置された状態である。尚、図面においては、受電電極ELa~ELdを一方向に配列した構成を図示したが、これらの受電電極ELa~ELdは、一方向にずらして配置されていればよく、素子のレイアウトによっては、多方向にもずらして配置されていてもよい。
These power receiving electrodes ELa to ELd are composed of electrode layers having the same width in one direction and are arranged in one direction. The arrangement state is such that the power receiving electrodes ELa and ELc connected to the anodes of the organic electroluminescent elements EL1 and EL2 and the power receiving electrodes ELb and ELd connected to the cathode are alternately arranged in one direction. is there. In the drawing, the configuration in which the power receiving electrodes ELa to ELd are arranged in one direction is shown. However, these power receiving electrodes ELa to ELd may be arranged so as to be shifted in one direction, and depending on the layout of the element, They may be arranged shifted in multiple directions.
<給電発光システム8による給電>
以上のような構成の発光素子パネル80および給電装置100”で構成された給電発光システム8における発光素子パネル80への給電は、第6実施形態と同様に実施される。 <Power supply by power supplylight emitting system 8>
The power feeding to the light emitting element panel 80 in the power feedinglight emitting system 8 constituted by the light emitting element panel 80 and the power feeding device 100 ″ configured as described above is performed in the same manner as in the sixth embodiment.
以上のような構成の発光素子パネル80および給電装置100”で構成された給電発光システム8における発光素子パネル80への給電は、第6実施形態と同様に実施される。 <Power supply by power supply
The power feeding to the light emitting element panel 80 in the power feeding
<第8実施形態の効果>
以上説明した第8実施形態の給電発光システム8、発光素子パネル80、および給電装置100”であっても、第6実施形態と同様の効果を得ることができる。 <Effects of Eighth Embodiment>
Even with the power feedinglight emitting system 8, the light emitting element panel 80, and the power feeding apparatus 100 ″ of the eighth embodiment described above, the same effect as that of the sixth embodiment can be obtained.
以上説明した第8実施形態の給電発光システム8、発光素子パネル80、および給電装置100”であっても、第6実施形態と同様の効果を得ることができる。 <Effects of Eighth Embodiment>
Even with the power feeding
1,1’,2,2’,3,4,4’,5,6,7,8…給電発光システム
10~80,60a~60d,70a~70d,80a~80d…発光素子パネル
12…透明電極
13…有機発光機能層
14…対向電極
15…封止層
16…シールド層
D1~D4…ダイオード
EL,EL1,EL2…有機電界発光素子
ELa~ELd,ELb’,ELa”,ELb”…受電電極
100,100’,100”…給電装置
101…交流電源
103…マッチング回路
105a…給電電極(ホット側電極)
105b…給電電極(アース側電極) 1, 1 ', 2, 2', 3, 4, 4 ', 5, 6, 7, 8 ... Feed light emittingsystem 10 to 80, 60a to 60d, 70a to 70d, 80a to 80d ... Light emitting element panel 12 ... Transparent Electrode 13 ... Organic light emitting functional layer 14 ... Counter electrode 15 ... Sealing layer 16 ... Shield layer D1-D4 ... Diode EL, EL1, EL2 ... Organic electroluminescent element ELa-ELd, ELb ', ELa ", ELb" ... Power receiving electrode DESCRIPTION OF SYMBOLS 100,100 ', 100 "... Feeding device 101 ... AC power supply 103 ... Matching circuit 105a ... Feeding electrode (hot side electrode)
105b ... Feed electrode (ground side electrode)
10~80,60a~60d,70a~70d,80a~80d…発光素子パネル
12…透明電極
13…有機発光機能層
14…対向電極
15…封止層
16…シールド層
D1~D4…ダイオード
EL,EL1,EL2…有機電界発光素子
ELa~ELd,ELb’,ELa”,ELb”…受電電極
100,100’,100”…給電装置
101…交流電源
103…マッチング回路
105a…給電電極(ホット側電極)
105b…給電電極(アース側電極) 1, 1 ', 2, 2', 3, 4, 4 ', 5, 6, 7, 8 ... Feed light emitting
105b ... Feed electrode (ground side electrode)
Claims (14)
- 一対の電極間に有機発光機能層が挟持された有機電界発光素子を有する発光素子パネルと、交流電源に接続された給電電極を有する給電装置とを備え、
前記発光素子パネルは、前記一対の電極に接続された電極層からなる一対の受電電極を備え、
前記給電装置は、前記受電電極に対応して前記給電電極が配置されたもので、当該受電電極と当該給電電極との間の電界結合により、前記有機電界発光素子に電力を供給する
給電発光システム。 A light emitting element panel having an organic electroluminescent element in which an organic light emitting functional layer is sandwiched between a pair of electrodes, and a power feeding device having a power feeding electrode connected to an AC power source,
The light-emitting element panel includes a pair of power receiving electrodes including an electrode layer connected to the pair of electrodes,
The power feeding device includes the power feeding electrode arranged corresponding to the power receiving electrode, and supplies power to the organic electroluminescent element by electric field coupling between the power receiving electrode and the power feeding electrode. . - 前記発光素子パネルは、前記一対の電極のうちの一方をアノードとし他方をカソードとした2つの前記有機電界発光素子を有し、
前記有機電界発光素子のうち一方の有機電界発光素子のアノードと他方の有機電界発光素子のカソードとが接続され、
前記有機電界発光素子のうち一方の有機電界発光素子のカソードと他方の有機電界発光素子のアノードとが接続されている
請求項1記載の給電発光システム。 The light-emitting element panel includes the two organic electroluminescent elements in which one of the pair of electrodes is an anode and the other is a cathode.
Among the organic electroluminescent elements, an anode of one organic electroluminescent element and a cathode of the other organic electroluminescent element are connected,
The feed light-emitting system according to claim 1, wherein a cathode of one of the organic electroluminescent elements is connected to an anode of the other organic electroluminescent element. - 前記有機電界発光素子の一対の電極は、前記有機発光機能層に対するアノードとカソードとであり、
前記電極層からなる一対の受電電極のうちの一方の受電電極は、前記一対の電極のうちの一方から延設され、
前記電極層からなる一対の受電電極のうちの他方の受電電極は、前記一対の電極のうちの他方に対して別体の電極層として形成され、
前記別体の電極層からなる受電電極と、前記一対の電極のうちの一方の電極との間、および他方の電極との間に、前記有機電界発光素子に対して順方向にダイオードが直列に接続されている
請求項1記載の給電発光システム。 The pair of electrodes of the organic electroluminescent element is an anode and a cathode for the organic light emitting functional layer,
One receiving electrode of the pair of receiving electrodes made of the electrode layer is extended from one of the pair of electrodes,
The other receiving electrode of the pair of receiving electrodes made of the electrode layer is formed as a separate electrode layer with respect to the other of the pair of electrodes,
Between the power receiving electrode composed of the separate electrode layer, one electrode of the pair of electrodes, and the other electrode, a diode is connected in series in the forward direction with respect to the organic electroluminescent element. The power feeding light emitting system according to claim 1, wherein the power feeding light emitting system is connected. - 前記発光素子パネルは、前記一対の電極のうちの一方をアノードとし他方をカソードとした2つの前記有機電界発光素子を有し、
前記有機電界発光素子のうち一方の有機電界発光素子のアノードと他方の有機電界発光素子のカソードとの間に順方向にダイオードが直列に接続され、
前記有機電界発光素子のうち一方の有機電界発光素子のカソードと他方の有機電界発光素子のアノードとの間に順方向にダイオードが直列に接続され、
前記2つの有機電界発光素子のアノードまたはカソードの何れかが、前記一対の受電電極を構成している
請求項1記載の給電発光システム。 The light-emitting element panel includes the two organic electroluminescent elements in which one of the pair of electrodes is an anode and the other is a cathode.
A diode is connected in series in the forward direction between the anode of one of the organic electroluminescent elements and the cathode of the other organic electroluminescent element,
A diode is connected in series in the forward direction between the cathode of one of the organic electroluminescent elements and the anode of the other organic electroluminescent element,
The feeding light-emitting system according to claim 1, wherein either the anode or the cathode of the two organic electroluminescent elements constitutes the pair of power receiving electrodes. - 前記発光素子パネルは、前記一対の電極のうちの一方をアノードとし他方をカソードとした2つの前記有機電界発光素子を有し、
前記有機電界発光素子のうち一方の有機電界発光素子のアノードと他方の有機電界発光素子のカソードとの間に順方向に2つのダイオードが直列に接続され、
前記有機電界発光素子のうち一方の有機電界発光素子のカソードと他方の有機電界発光素子のアノードとの間に順方向に2つのダイオードが直列に接続され、
前記一対の受電電極は、前記2つの有機電界発光素子のアノードまたはカソードの何れかに接続された2つの電極層と、前記各2つのダイオードの間に接続された2つの電極層との4つに分割され、一方向に対してずらした位置に配置されている
請求項1記載の給電発光システム。 The light-emitting element panel includes the two organic electroluminescent elements in which one of the pair of electrodes is an anode and the other is a cathode.
Two diodes are connected in series between the anode of one of the organic electroluminescent elements and the cathode of the other organic electroluminescent element in a forward direction,
Two diodes are connected in series between the cathode of one of the organic electroluminescent elements and the anode of the other organic electroluminescent element in series,
The pair of power receiving electrodes includes four electrode layers including two electrode layers connected to either the anode or the cathode of the two organic electroluminescent elements and two electrode layers connected between the two diodes. The power feeding light emitting system according to claim 1, wherein the power feeding light emitting system is arranged at a position shifted with respect to one direction. - 前記2つの有機電界発光素子のアノードまたはカソードの何れかに接続された2つの電極層と、前記各2つのダイオードの間に接続された2つの電極層とは、前記一方向に交互に配置されている
請求項5記載の給電発光システム。 Two electrode layers connected to either the anode or the cathode of the two organic electroluminescent elements and two electrode layers connected between the two diodes are alternately arranged in the one direction. The power feeding light emitting system according to claim 5. - 前記発光素子パネルは、前記有機電界発光素子の一対の電極間に、順方向に直列に接続された4つのダイオードを備え、
前記一対の受電電極は、前記4つのダイオード間に接続された4つの電極層に分割され、一方向に対してずらした位置に配置され、
前記4つの電極層のうちの1つは、前記有機電界発光素子の一対の電極のうち何れか一方である
請求項1記載の給電発光システム。 The light emitting element panel includes four diodes connected in series in a forward direction between a pair of electrodes of the organic electroluminescent element,
The pair of power receiving electrodes are divided into four electrode layers connected between the four diodes and arranged at positions shifted with respect to one direction,
The feeding light-emitting system according to claim 1, wherein one of the four electrode layers is one of a pair of electrodes of the organic electroluminescent element. - 前記発光素子パネルは、前記一対の電極のうちの一方をアノードとし他方をカソードとした2つの前記有機電界発光素子を有し、
前記有機電界発光素子のうち一方の有機電界発光素子のアノードと他方の有機電界発光素子のカソードとの間に順方向にダイオードが直列に接続され、
前記有機電界発光素子のうち一方の有機電界発光素子のカソードと他方の有機電界発光素子のアノードとの間に順方向にダイオードが直列に接続され、
前記一対の受電電極は、前記2つの有機電界発光素子のアノードおよびカソードのそれぞれに接続された4つの電極層に分割され、一方向に対してずらした位置に配置されている
請求項1記載の給電発光システム。 The light-emitting element panel includes the two organic electroluminescent elements in which one of the pair of electrodes is an anode and the other is a cathode.
A diode is connected in series in the forward direction between the anode of one of the organic electroluminescent elements and the cathode of the other organic electroluminescent element,
A diode is connected in series in the forward direction between the cathode of one of the organic electroluminescent elements and the anode of the other organic electroluminescent element,
The pair of power receiving electrodes are divided into four electrode layers connected to anodes and cathodes of the two organic electroluminescent elements, respectively, and are arranged at positions shifted with respect to one direction. Power supply light emitting system. - 前記ダイオードは、ショットキーダイオードである
請求項3~8の何れか1項に記載の給電発光システム。 The feeding light-emitting system according to any one of claims 3 to 8, wherein the diode is a Schottky diode. - 前記発光素子パネルは、前記有機電界発光素子を覆って設けられた封止層と、当該封止層上に設けられたシールド層とを有し、
前記有機電界発光素子を構成する前記一対の電極のうちの何れかが、前記シールド層に接続され、当該シールド層と共に前記一対の受電電極のいずれか一方を構成している
請求項1~9の何れか1項に記載の給電発光システム。 The light emitting element panel has a sealing layer provided to cover the organic electroluminescent element, and a shield layer provided on the sealing layer,
The one of the pair of electrodes constituting the organic electroluminescent element is connected to the shield layer, and constitutes one of the pair of power receiving electrodes together with the shield layer. The power feeding light emitting system according to any one of the above. - 前記交流電源と前記給電電極との間に、マッチング回路が設けられた
請求項1~10の何れか1項に記載の給電発光システム。 The feeding light emitting system according to any one of claims 1 to 10, wherein a matching circuit is provided between the AC power source and the feeding electrode. - 前記給電電極は、前記交流電源のホット側電極とアース側電極とであり、
前記給電装置は、複数の前記ホット側電極と複数の前記アース側電極とを交互に複数配置してなる
請求項1~11の何れか1項に記載の給電発光システム。 The feeding electrode is a hot side electrode and a ground side electrode of the AC power source,
The power feeding light emitting system according to any one of claims 1 to 11, wherein the power feeding device includes a plurality of hot side electrodes and a plurality of ground side electrodes alternately arranged. - 一対の電極間に有機発光機能層が挟持された有機電界発光素子と、
前記一対の電極に接続された電極層からなる一対の受電電極とを備え、
交流電源に接続された給電電極と前記一対の受電電極との間の電界結合により、前記有機電界発光素子に電力が供給されて発光する発光素子パネル。 An organic electroluminescent element in which an organic light emitting functional layer is sandwiched between a pair of electrodes;
A pair of power receiving electrodes composed of an electrode layer connected to the pair of electrodes,
A light emitting element panel that emits light when electric power is supplied to the organic electroluminescent element by electric field coupling between a power feeding electrode connected to an AC power source and the pair of power receiving electrodes. - 有機電界発光素子を有する発光素子パネルに設けられた一対の受電電極に対応して交流電源に接続された給電電極が配置され、
前記受電電極と前記給電電極との間の電界結合により、前記有機電界発光素子に電力を供給する
給電装置。 A feeding electrode connected to an AC power source is arranged corresponding to a pair of power receiving electrodes provided in a light emitting element panel having an organic electroluminescent element,
A power feeding device that supplies electric power to the organic electroluminescent element by electric field coupling between the power receiving electrode and the power feeding electrode.
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