WO2013140632A1 - Appareil électroluminescent organique et son procédé de fabrication - Google Patents

Appareil électroluminescent organique et son procédé de fabrication Download PDF

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Publication number
WO2013140632A1
WO2013140632A1 PCT/JP2012/057644 JP2012057644W WO2013140632A1 WO 2013140632 A1 WO2013140632 A1 WO 2013140632A1 JP 2012057644 W JP2012057644 W JP 2012057644W WO 2013140632 A1 WO2013140632 A1 WO 2013140632A1
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WIPO (PCT)
Prior art keywords
organic
touch
electrode
partition wall
substrate
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PCT/JP2012/057644
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English (en)
Japanese (ja)
Inventor
聡 柏倉
陽介 佐藤
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パイオニア株式会社
東北パイオニア株式会社
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Application filed by パイオニア株式会社, 東北パイオニア株式会社 filed Critical パイオニア株式会社
Priority to PCT/JP2012/057644 priority Critical patent/WO2013140632A1/fr
Publication of WO2013140632A1 publication Critical patent/WO2013140632A1/fr

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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
    • H05B33/10—Apparatus or processes specially adapted to the manufacture of electroluminescent light sources
    • H—ELECTRICITY
    • H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
    • H10K59/00—Integrated devices, or assemblies of multiple devices, comprising at least one organic light-emitting element covered by group H10K50/00
    • H10K59/10—OLED displays
    • H10K59/17—Passive-matrix OLED displays
    • H10K59/173—Passive-matrix OLED displays comprising banks or shadow masks
    • H—ELECTRICITY
    • H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
    • H10K59/00—Integrated devices, or assemblies of multiple devices, comprising at least one organic light-emitting element covered by group H10K50/00
    • H10K59/40—OLEDs integrated with touch screens

Definitions

  • the present invention relates to an organic EL device and a manufacturing method thereof.
  • a self-luminous device (organic EL device) including an organic EL element includes, for example, a display screen of a mobile phone, a monitor screen of an in-vehicle or household electronic device, an information display screen of a personal computer or a television receiver, a lighting panel for advertisement
  • a display screen of a mobile phone a monitor screen of an in-vehicle or household electronic device
  • an information display screen of a personal computer or a television receiver a lighting panel for advertisement
  • various display devices used in various applications as various light sources used in scanners, printers, etc., as illumination devices used in general illumination and backlights of liquid crystal display devices, etc., and as an optical communication device utilizing a photoelectric conversion function It can be used for various applications and models.
  • An organic EL device having a touch sensor function is known.
  • Some touch sensors are based on various operation principles such as a capacitance method, a resistance film method, an infrared method, and an ultrasonic method.
  • a capacitance method such as a capacitance method, a resistance film method, an infrared method, and an ultrasonic method.
  • an organic EL display device having a capacitive touch sensor function a substrate, an organic EL element provided on the substrate, and a sealing film provided on the opposite side of the organic EL element
  • a touch detection electrode provided on the surface of the sealing film a plurality of touch detection wirings that are electrically connected to the outer peripheral edge of the touch detection electrode at a distance from each other, and from each touch detection wiring
  • a device including a touch position detection circuit that detects a touch position on a touch detection electrode using an electrical signal is known (for example, see Patent Document 1).
  • an organic EL display device having a touch sensor function as in the prior art is provided with a touch detection electrode on the surface of a sealing film provided on the opposite side of the organic EL element, a normal manufacturing process of the organic EL display device It is necessary to add a film forming process for forming a touch detection electrode. If the touch sensor function is added to the organic EL display device, it can be said that a manufacturing process is added, but the addition of the film forming process requires the addition of a substrate transport path and a film forming chamber. This will require a large-scale expansion of manufacturing equipment.
  • the tact time of the film forming process occupies most of the time of the entire manufacturing process. Therefore, according to the prior art, the touch detection electrode is formed in the tact time of the normal organic EL display device. The tact time of the film forming process is added, and the entire manufacturing time is greatly extended. This causes a problem that productivity is lowered.
  • the present invention is an example of a problem to deal with such a problem. That is, in an organic EL device, it is possible to add a touch sensor function with a simple manufacturing process, in particular, without adding a touch sensor function without greatly increasing the tact time and without adding manufacturing equipment.
  • An object of the present invention is that an EL device can be obtained and an organic EL device to which a touch sensor function is added can be obtained without greatly affecting the thickness and weight of the entire device.
  • the present invention has at least the following features.
  • FIG.8 (a) shows the electrode arrangement structure of a touch electrode alone
  • FIG.8 (b) is a touch detection electrode.
  • positioning structure in the case of providing is shown.
  • FIG. 1 is an explanatory diagram showing a configuration of an organic EL device according to an embodiment of the present invention.
  • An organic EL device 1 according to an embodiment of the present invention includes a substrate 10, an organic EL element 1 U that includes at least a lower electrode 11, an organic layer 12, and an upper electrode 13 stacked on the substrate 10, and stands on the substrate 10.
  • a partition wall 16 provided and a touch electrode 20 formed on the partition wall 16 are provided. Further, as shown in FIG.
  • the organic EL device 1 includes the substrate 10, the organic EL element 1U, the partition wall 16, and the touch electrode 20, and the upper surface of the touch electrode 20 (upper surface 16T of the partition wall 16).
  • a touch detection electrode 20 ⁇ / b> S that detects a touch in cooperation with the touch electrode 20.
  • detecting the touch means detecting that a person operating the organic EL device 1 touches the light emitting surface of the organic EL device 1.
  • the touch detection electrode 20S can be configured by a conductive layer formed on a sealing member that seals the organic EL element 1U.
  • the touch detection electrode 20S can be configured by a sealing member (sealing can) made of metal.
  • such an organic EL device 1 includes the touch electrode 20 on the partition wall 16, the touch electrode 20 can be formed in the process of forming the organic EL element 1U, and the process of forming the touch electrode 20 is simplified. can do.
  • the upper surface 16T of the partition wall 16 is three-dimensionally separated from the plane on which the organic EL element 1U is formed, and the upper surface 16T of each partition wall 16 is disposed independently, so that the touch electrode 20 is formed thereon. This makes it possible to easily form the touch electrode 20 that is electrically independent of the electrode of the organic EL element 1U and the like.
  • the organic EL device 1 when the organic EL element is hollow-sealed with a sealing member, since the space above the partition wall 16 becomes an empty space in the sealing space, the thickness of the organic EL device 1 can be increased by effectively using this empty space.
  • the touch electrode 20 and the touch detection electrode 20S can be formed without affecting the thickness. Accordingly, the organic EL device 1 having a touch sensor function can be thinned.
  • a state in which the touch electrode 20 and the touch detection electrode 20S are arranged apart from each other can be formed using a sealing space.
  • the touch electrode 20 and the touch detection electrode 20S can be incorporated, and the organic EL device 1 having the touch sensor function can be thinned.
  • the partition wall 16 in the organic EL device 1 a partition wall provided for individually dividing the upper electrode 13 can be adopted.
  • the organic EL device 1 is a passive matrix drive system
  • the partition walls 16 are extended in a line shape and arranged in parallel in a stripe shape.
  • the touch electrode 20 By forming the touch electrode 20 on the partition wall 16 as described above, it is possible to obtain the touch electrodes 20 that extend in a line shape and are separately separated and arranged in parallel.
  • the organic EL device 1 includes a plurality of partition walls 16 and touch electrodes 20.
  • the touch electrode 20 can be formed by the same process and the same material as the upper electrode 13.
  • An upper electrode material that is deposited on the partition wall 16 serving as a pattern mask for the upper electrode 13 when the upper electrode 13 is formed can be used as the touch electrode 20. Since the upper electrode 13 is formed on the organic layer 12 of the organic EL element 1U, the organic layer material 12a is deposited on the partition wall 16, and the touch electrode 20 made of the upper electrode material is formed thereon. Is done.
  • FIG. 2 is an explanatory view showing an example of a touch detection method of the organic EL device according to the embodiment of the present invention.
  • the example shown in FIG. 2A is a contact-type touch detection method, and a touch is detected when the touch electrode 20 and the touch detection electrode 20S are in physical contact.
  • the position of one or both of the touch electrode 20 and the touch detection electrode 20S needs to be displaced along the thickness direction of the substrate 10, and the bending of the substrate 10 or the member that supports the touch detection electrode 20S is required.
  • the aforementioned displacement can be obtained by bending or the like.
  • the example shown in FIG. 2B detects a touch by detecting a change in capacitance between the touch electrode 20 and the touch detection electrode 20S. If the distance between the touch electrode 20 and the touch detection electrode 20S is L1 in the initial state, but the distance is changed to L2 by touching the substrate 10 or the like, the capacitance changes due to the change in the distance. It becomes possible to detect a touch using. In this case as well, it is necessary to displace one or both of the touch electrode 20 and the touch detection electrode 20S along the thickness direction of the substrate 10 as in the contact method described above. Since the touch can be detected without bringing the electrode 20S into contact with each other, the deterioration of the electrode can be suppressed and the life of the organic EL device 1 can be extended.
  • the touch is detected by detecting the capacitance between the touch electrode 20 or the touch detection electrode 20S and the finger Fi performing the touch operation. According to this, the displacement of the touch electrode 20 and the touch detection electrode 20S becomes unnecessary, and the highly rigid substrate 10 or the like can be used, so that the highly durable organic EL device 1 can be obtained.
  • FIG. 3 is an explanatory view showing a specific structure example of the partition walls and touch electrodes of the organic EL device according to the embodiment of the present invention.
  • FIG. 3A shows an example of a sectional structure of the partition wall.
  • the side surface 16S of the partition wall 16 has an inversely tapered surface facing the substrate 10 side.
  • the illustrated partition wall 16 has reverse tapered surfaces on both the left and right side surfaces 16S.
  • a plurality of layers can be stacked on the upper surface 16T of the partition wall 16, and the touch electrode 20 can have a multilayer structure.
  • the partition 16 is provided to individually divide the upper electrode 13, the organic layer material 12a is stacked on the upper surface 16T of the partition 16, and the touch electrode 20 is stacked thereon. It will be.
  • the touch electrode 20 can have a plurality of layers (for example, the first layer 20 1 and the second layer 20 2 ).
  • the first layer 20 1 and the second layer 20 2 for example, can be formed by laminating different metal layers.
  • the durability of the touch electrode 20 can be increased by making the touch electrode 20 a laminated structure and increasing the layer thickness. Further, the durability can be improved by making the touch electrode 20 as a single layer and increasing its deposition thickness.
  • FIGS. 3 (b1) and 3 (b2) and FIGS. 3 (c1) and 3 (c2) show the lead-out structure of the touch electrode 20 formed on the partition wall 16.
  • FIG. 3 (b2) is a cross-sectional view taken along the line AA in FIG. 3 (b1)
  • FIG. 3 (c2) is a cross-sectional view taken along the line BB in FIG. 3 (c1).
  • the partition wall 16 has forward tapered surfaces 16S1 and 16S2 at least partially facing the opposite side of the substrate 10. The touch electrode 20 is drawn out of the partition wall 16 via the forward tapered surfaces 16S1 and 16S2.
  • the partition wall 16 is bent and extended in different directions on the substrate 10, and includes a corner portion 20n which is the bent portion.
  • the corner 20n is formed in the vicinity of the end of the extended partition wall 16.
  • the side surface on the narrow angle side in the corner portion 20n is a forward tapered surface 16S1.
  • the end 20m of the partition 16 is a forward tapered surface 16S2.
  • the developing speed is different, and a forward tapered surface 16S1 as shown in the drawing is formed along the corner 20n.
  • the forward taper surface 16S2 along the longitudinal direction is formed by causing a difference in the developing speed by the difference in exposure amount along the longitudinal direction with respect to the end portion 20m of the partition wall 16. Forming.
  • FIG. 4 is an explanatory diagram showing an electrode lead-out configuration using the touch detection electrode 20S.
  • a part of the touch detection electrode 20S is drawn to the outside, and the plurality of touch detection electrodes 20S (20S-1, 20S-2) have a divided portion that is electrically separated from each other.
  • the touch electrode 20 on the partition wall 16 itself has a structure that is not drawn from the partition wall 16 to the outside of the partition wall 16.
  • FIGS. 4A1 and 4A2 show a state in which no touch is detected, and the two touch detection electrodes 20S-1 and 20S-2 that are separated from each other are not electrically connected to each other, and the touch detection electrode 20S- 1, 20S-2 and the touch electrode 20 of the partition 16 are not in contact with each other.
  • FIGS. 4B1 and 4B2 show a state in which a touch is detected, and the touch detection electrodes 20S-1 and 20S-2 come into contact with the touch electrode 20 of the partition wall 16 by the touch. According to this, the two touch detection electrodes 20S-1 and 20S-2 separated from each other are electrically connected to each other through the touch electrode 20, and a touch is detected by detecting this conduction.
  • FIG. 5 is an explanatory view showing an arrangement configuration example of touch electrodes.
  • FIG. 5A is a plan view of the organic EL element 1U
  • FIG. 5B is an XX cross-sectional view.
  • the partition walls 16 are disposed both outside and inside the light emitting region 1L of the organic EL element 1U.
  • the partition walls 16 disposed in the light emitting region 1L of the organic EL element 1U are independent from each other, and the touch electrodes 20 disposed on the partition walls 16 are separated from each other so that the partition walls 16 are separated from each other. It has a structure that cannot be pulled out.
  • FIG. 6 is a plan view showing an example of the shape of the upper surface of the partition wall on which the touch electrode is formed.
  • the shape of the upper surface 16T of the partition wall 16 can be various shapes.
  • the example shown in FIG. 6A is a line shape.
  • the example shown in FIG. 6B has a divided rectangular shape.
  • the example shown in FIG. 6C is a split ridge shape (oval shape).
  • the example shown in FIG. 6 (d) has a circular shape.
  • the example shown in FIG. 6 (e) has an elliptical shape.
  • FIG. 7 is an explanatory diagram (plan view) showing the overall configuration of the organic EL device according to the embodiment of the present invention.
  • the organic EL device 1 includes a substrate 10 and an organic EL element 1U formed on the substrate 10.
  • the organic EL element 1U is formed in a sealing region 10A in the substrate 10.
  • a plurality of organic EL elements 1U are arranged in a matrix in the sealing region 10A.
  • the organic EL elements 1U are not limited to this, and one organic EL element 1U may be formed on the substrate 10. Good.
  • the organic EL element 1U is hermetically sealed between the substrate 10 and the sealing member 50 that covers the sealing region 10A and faces the substrate 10.
  • the organic EL element 1U is laminated on the substrate 10. As shown in FIG. 1, the organic EL element 1U includes at least a lower electrode 11, an organic layer 12, and an upper electrode 13. In the illustrated example, the lower electrode 11 is formed on the substrate 10, the organic layer 12 is formed thereon, and the upper electrode 13 is further formed thereon. Several film-forming layers may exist between them, and other layers may be laminated between the lower electrode 11, the organic layer 12, and the upper electrode 13.
  • the organic layer 12 is composed of one light emitting layer or several functional layers for emitting light (hole injection / transport layer, light emitting layer, electron injection / transport layer, etc.).
  • a plurality of lower electrodes 11 are formed in a stripe shape on the substrate 10, and a plurality of upper electrodes 13 are formed in a stripe shape in a direction intersecting the lower electrode 11.
  • the plurality of lower electrodes 11 are insulatively partitioned by an insulating film, and the plurality of upper electrodes 13 are insulatively partitioned by partition walls 16 formed in a stripe shape therebetween.
  • the organic EL device 1 includes a wiring electrode 15 connected to either the lower electrode 11 or the upper electrode 13 on the substrate 10.
  • the wiring electrode 15 is made of a conductive layer stacked on a substrate, and is formed by patterning one or a plurality of stacked conductive layers.
  • the wiring electrode 15 is an auxiliary wiring electrode wired along the lower electrode 11 in order to substantially lower the electric resistance of the lower electrode 11, a lead connected to the end of the lower electrode 11 or the upper electrode 13.
  • One or both of the wiring electrodes are examples of the wiring electrode 15 connected to either the lower electrode 11 or the upper electrode 13 on the substrate 10.
  • the organic EL device 1 includes a touch electrode 20.
  • the touch electrode 20 is formed on the partition wall 16 and disposed in the sealing region 10 ⁇ / b> A that is sealed by the sealing member 50.
  • the touch electrode 20 is a layer made of the same material as the layer of the upper electrode 13 or the same layer.
  • the same layer refers to a layer formed in the same film formation process. When a certain layer and a certain layer are the same layer, both are necessarily formed of the same material. Become a layer.
  • the touch electrode 20 is patterned on the partition wall 16 simultaneously with the upper electrode 13.
  • a plurality of touch electrodes 20 are arranged in parallel with the plurality of upper electrodes 13, and are formed on the partition walls 16 between the plurality of upper electrodes 13.
  • the touch electrode 20 is formed in a plurality of lines.
  • the touch electrode 20 can be formed of Al, which is a material of the upper electrode 13.
  • the drive circuit element (COG) 30 is mounted on the substrate 10, and the wiring electrode 15 (leading wiring electrode) connected to the ends of the lower electrode 11 and the upper electrode 13 is the driving circuit. It is connected to the element 30. Further, a circuit board (for example, a flexible circuit board) 31 is connected to the substrate 10, the touch electrode 20 is connected to the detection circuit 32 mounted on the circuit board 31, and the drive circuit element is connected to the drive circuit 33. 30 is connected.
  • the detection circuit 32 is a circuit for detecting a change in current value or voltage value on the touch electrode 20 or a change in capacitance.
  • the touch electrode 20 constituting the touch sensor is formed of the material of the upper electrode 13 deposited on the partition wall 16. According to this, the touch electrode 20 can be formed in the same process as the upper electrode 13. Thereby, a touch sensor function can be added to a normal organic EL device having no touch sensor function without adding a film forming process or a pattern forming process.
  • the organic EL device 1 Since the organic EL device 1 has the above-described characteristics, the organic EL device 1 including the touch electrode 20 can be obtained without extending the cycle time of the manufacturing process. Therefore, the organic EL device without a touch sensor function can be obtained. Can be obtained. In addition, since the touch electrode 20 itself is formed on the partition wall 16 in the sealing region, an organic EL device to which a touch sensor function is added can be obtained without greatly affecting the thickness and weight of the entire device.
  • FIG. 8 is an explanatory view showing a configuration example of the touch electrode in the organic EL device 1 according to the embodiment of the present invention.
  • FIG. 8A shows an electrode arrangement structure of the touch electrode alone, and FIG. The electrode arrangement
  • a plurality of touch electrodes 20 are arranged in parallel with the upper electrode 13, and some or all of the plurality of touch electrodes 20 are connected by a connecting electrode 21.
  • the connection electrodes 21 extend in a direction intersecting with the plurality of touch electrodes 20 arranged in parallel with the upper electrode 13, and the end portions of the touch electrodes 20 are connected to the connection electrodes 21, respectively.
  • the plurality of touch electrodes 20 and the plurality of touch detection electrodes 20S are arranged so as to intersect each other.
  • the substrate 10 is light transmissive and is formed of a base material that can support the organic EL element 1U, such as glass or plastic.
  • the transparent conductive film layer forming the lower electrode 11 is a transparent metal such as ITO (Indium Tin Oxide), IZO (Indium Zinc Oxide), zinc oxide-based transparent conductive film, SnO 2 -based transparent conductive film, titanium dioxide-based transparent conductive film, etc. An oxide can be used.
  • an insulating film 14 is provided to ensure insulation between the electrodes.
  • the insulating film 14 is made of a material such as polyimide resin, acrylic resin, silicon oxide, or silicon nitride.
  • the insulating film 14 is formed by depositing the material of the insulating film 14 on the substrate 10 on which the lower electrode 11 is patterned, and then forming an opening for forming the light emitting region 1L for each organic EL element 1U on the lower electrode 11. Patterning is performed. Specifically, a film is formed on the substrate 10 on which the lower electrode 11 is formed to have a predetermined coating thickness by spin coating, and exposure processing and development processing are performed using an exposure mask, whereby an organic EL element is obtained.
  • a layer of insulating film 14 having an opening pattern shape of 1U is formed.
  • the insulating film 14 is formed so as to fill the space between the patterns of the lower electrode 11 and partially cover the side end portion thereof, and is formed in a lattice shape when the organic EL elements 1U are arranged in a dot matrix.
  • the barrier ribs 16 are formed in stripes in a direction intersecting the lower electrode 11 in order to form a pattern of the upper electrode 13 without using a mask or the like, or to completely electrically insulate the adjacent upper electrode 13 from each other.
  • an insulating material such as a photosensitive resin is formed on the above-described insulating film 14 so that the film thickness is larger than the total thickness of the organic layer 12 and the upper electrode 13 that form the organic EL element 1U.
  • the photosensitive resin film is irradiated with ultraviolet rays or the like through a photomask having a stripe pattern intersecting with the lower electrode 11, and the development speed resulting from the difference in the exposure amount in the thickness direction of the layer is applied.
  • the partition wall 16 having a tapered surface with a side portion facing downward is formed.
  • the organic layer 12 has a laminated structure of light emitting functional layers including a light emitting layer.
  • a hole injection layer and a hole transport are sequentially formed from the anode side.
  • a layer, a light emitting layer, an electron transport layer, an electron injection layer, and the like are selectively formed.
  • a vacuum deposition method or the like is used as a dry film formation, and coating or various printing methods are used as a wet film formation.
  • NPB N, N-di (naphtalence) -N, N-dipheneyl-benzidene
  • This hole transport layer has a function of transporting holes injected from the anode to the light emitting layer.
  • the hole transport layer may be a single layer or a stack of two or more layers.
  • the hole transport layer is not formed by a single material, but a single layer may be formed by a plurality of materials, and a guest material having a high charge donating (accepting) property may be formed on a host material having a high charge transport capability. Doping may be performed.
  • red (R), green (G), and blue (B) light-emitting layers are formed in respective film formation regions by using a resistance heating vapor deposition method using a coating mask.
  • red (R) an organic material that emits red light such as a styryl dye such as DCM1 (4- (dicyanomethylene) -2-methyl-6- (4'-dimethylaminostyryl) -4H-pyran) is used.
  • An organic material that emits green light such as an aluminum quinolinol complex (Alq3) is used as green (G).
  • Alq3 aluminum quinolinol complex
  • blue (B) an organic material emitting blue light such as a distyryl derivative or a triazole derivative is used.
  • the emission form may be a fluorescent light emitting material or a phosphorescent light emitting material.
  • the electron transport layer formed on the light emitting layer is formed by using various materials such as an aluminum quinolinol complex (Alq3) by various film forming methods such as resistance heating vapor deposition.
  • the electron transport layer has a function of transporting electrons injected from the cathode to the light emitting layer.
  • This electron transport layer may have a multilayer structure in which only one layer is stacked or two or more layers are stacked.
  • the electron transport layer may be formed of a plurality of materials instead of a single material, and a guest material having a high charge donating (accepting) property may be formed on a host material having a high charge transport capability. It may be formed by doping.
  • a material (metal, metal oxide, metal fluoride, alloy, etc.) having a work function smaller than that of the anode (for example, 4 eV or less) is used.
  • metal films such as aluminum (Al), indium (In), magnesium (Mg), amorphous semiconductors such as doped polyaniline and doped polyphenylene vinylene, Cr 2 O 3 , NiO , Oxides such as Mn 2 O 5 can be used.
  • a single layer structure made of a metal material, a laminated structure such as LiO 2 / Al, or the like can be adopted.
  • a single layer or a multilayer of metal, silicon oxide, nitride, or oxynitride formed by an atomic layer growth method can be used.
  • an aluminum oxide film for example, Al 2 O
  • an alkyl metal such as TMA (trimethylaluminum), TEA (triethylaluminum), DMAH (dimethylaluminum hydride) and water, oxygen, or alcohols.
  • a silicon oxide film for example, SiO 2 film obtained by a reaction between a vaporized gas of a silicon-based material and a vaporized gas of water can be used.
  • the organic EL device 1 according to the embodiment of the present invention can also be applied to organic EL lighting in which the touch electrode 20 can be used as an on / off or adjustment switch. In that case, only one touch electrode 20 may be used as long as it can be detected whether or not it is touched. Even when the organic EL device 1 according to the embodiment of the present invention is applied to organic EL illumination, the touch position can be detected. According to this, it is possible to use such that the brightness can be adjusted by sliding the touched finger.

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  • Manufacturing & Machinery (AREA)
  • Electroluminescent Light Sources (AREA)

Abstract

Cette invention concerne un appareil électroluminescent organique (1) comprenant : un substrat (10) ; des éléments électroluminescents organiques (1U), munis chacun d'au moins une électrode inférieure (11), une couche organique (12) et une électrode supérieure (13), qui sont stratifiées sur le substrat (10) ; des nervures (16) prévues pour reposer sur le substrat (10) ; et des électrodes tactiles (20), qui sont formées sur les nervures (16), respectivement.
PCT/JP2012/057644 2012-03-23 2012-03-23 Appareil électroluminescent organique et son procédé de fabrication WO2013140632A1 (fr)

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Cited By (3)

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JP2018004925A (ja) * 2016-07-01 2018-01-11 株式会社ジャパンディスプレイ 表示装置
CN112768499A (zh) * 2021-01-13 2021-05-07 重庆京东方显示技术有限公司 有机发光二极管显示基板及制备方法、显示面板
JP2021524069A (ja) * 2018-05-25 2021-09-09 京東方科技集團股▲ふん▼有限公司Ｂｏｅ Ｔｅｃｈｎｏｌｏｇｙ Ｇｒｏｕｐ Ｃｏ．，Ｌｔｄ． タッチ表示パネル及びその製造方法、駆動方法、タッチ表示装置

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JP2010231700A (ja) * 2009-03-30 2010-10-14 Casio Computer Co Ltd 表示装置及び表示装置の駆動制御方法並びに表示装置の製造方法
JP2011023558A (ja) * 2009-07-16 2011-02-03 Sharp Corp 有機ｅｌ表示装置
JP2011054962A (ja) * 2009-09-02 2011-03-17 Samsung Mobile Display Co Ltd 有機発光ディスプレイ装置
JP2011248439A (ja) * 2010-05-24 2011-12-08 Omron Corp 静電容量式入力装置

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2018004925A (ja) * 2016-07-01 2018-01-11 株式会社ジャパンディスプレイ 表示装置
US10872934B2 (en) 2016-07-01 2020-12-22 Japan Display Inc. Display device and manufacturing method thereof
JP2021524069A (ja) * 2018-05-25 2021-09-09 京東方科技集團股▲ふん▼有限公司Ｂｏｅ Ｔｅｃｈｎｏｌｏｇｙ Ｇｒｏｕｐ Ｃｏ．，Ｌｔｄ． タッチ表示パネル及びその製造方法、駆動方法、タッチ表示装置
CN112768499A (zh) * 2021-01-13 2021-05-07 重庆京东方显示技术有限公司 有机发光二极管显示基板及制备方法、显示面板

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