WO2017183118A1 - Dispositif électroluminescent - Google Patents

Dispositif électroluminescent Download PDF

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Publication number
WO2017183118A1
WO2017183118A1 PCT/JP2016/062432 JP2016062432W WO2017183118A1 WO 2017183118 A1 WO2017183118 A1 WO 2017183118A1 JP 2016062432 W JP2016062432 W JP 2016062432W WO 2017183118 A1 WO2017183118 A1 WO 2017183118A1
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WIPO (PCT)
Prior art keywords
electrode
region
insulating layer
emitting device
light emitting
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PCT/JP2016/062432
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English (en)
Japanese (ja)
Inventor
中馬　隆
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パイオニア株式会社
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Priority to PCT/JP2016/062432 priority Critical patent/WO2017183118A1/fr
Publication of WO2017183118A1 publication Critical patent/WO2017183118A1/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
    • H05B33/12—Light sources with substantially two-dimensional radiating surfaces
    • 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
    • H05B33/12—Light sources with substantially two-dimensional radiating surfaces
    • H05B33/22—Light sources with substantially two-dimensional radiating surfaces characterised by the chemical or physical composition or the arrangement of auxiliary dielectric or reflective layers
    • 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
    • H05B33/12—Light sources with substantially two-dimensional radiating surfaces
    • H05B33/26—Light sources with substantially two-dimensional radiating surfaces characterised by the composition or arrangement of the conductive material used as an electrode
    • 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
    • H10K50/10—OLEDs or polymer light-emitting diodes [PLED]
    • H10K50/11—OLEDs or polymer light-emitting diodes [PLED] characterised by the electroluminescent [EL] layers

Definitions

  • the present invention relates to a light emitting device.
  • Such a light-emitting device has a first electrode, a second electrode, and an organic layer between the first electrode and the second electrode.
  • the first electrode is an anode and the second electrode is a cathode.
  • the organic layer emits light by a voltage between the first electrode and the second electrode.
  • Patent Document 1 describes an example of a light emitting device including an OLED.
  • This light-emitting device has a substrate, a first electrode, an organic layer, a second electrode, and two insulating layers.
  • the first electrode and the two insulating layers are on the substrate.
  • the first electrode is sandwiched between two insulating layers.
  • the organic layer is on the first electrode and sandwiched between two insulating layers.
  • the second electrode covers the organic layer and the two insulating layers, and extends to the outside of the two insulating layers.
  • Patent Document 2 also describes an example of a light emitting device including an OLED.
  • a first electrode, an organic layer, a second electrode, and a plurality of insulating layers are included.
  • the plurality of insulating layers are on the first electrode.
  • the organic layer covers the first electrode and the plurality of insulating layers.
  • the second electrode covers the first electrode and the plurality of insulating layers on the organic layer.
  • transflective OLED panels have been developed.
  • a transflective OLED panel a plurality of light emitting units may be arranged in a stripe pattern on a substrate.
  • an insulating layer may be provided around each light emitting unit.
  • the insulating layer is made of, for example, an organic insulating material, specifically, for example, polyimide.
  • An example of a problem to be solved by the present invention is to suppress the separation of the insulating layer from the substrate with a simple structure.
  • a substrate including a first region and a second region aligned with the first region; A first electrode on the first region and not on the second region; An insulating layer on the first electrode; An organic layer on the first electrode; A second electrode on the organic layer; With Each of the first electrode and the insulating layer has a first end on the second region side, In the direction from the first region to the second region, the first end portion of the first electrode is a light emitting device that is located outside the first end portion of the insulating layer.
  • FIG. 2 is a cross-sectional view taken along the line AA in FIG.
  • FIG. 3 is a cross-sectional view taken along the line BB in FIG. It is a figure which shows the 1st modification of FIG. It is a figure which shows the 2nd modification of FIG. It is a figure which shows the 3rd modification of FIG.
  • FIG. 1 is a plan view showing a light emitting device 10 according to the embodiment.
  • FIG. 2 is a cross-sectional view taken along the line AA in FIG. 3 is a cross-sectional view taken along the line BB of FIG.
  • the light emitting device 10 includes a substrate 100, a first electrode 110, an organic layer 120, a second electrode 130, and an insulating layer 150.
  • the substrate 100 includes a plurality of first regions 102a and a plurality of second regions 102b.
  • the plurality of first regions 102a and the plurality of second regions 102b are arranged alternately. In other words, one and the other of the two second regions 102b adjacent to each other face each other across the first region 102a.
  • the first electrode 110 is on the first region 102a and not on the second region 102b.
  • the organic layer 120 is on the first electrode 110.
  • the insulating layer 150 is on the first electrode 110.
  • the second electrode 130 is on the organic layer 120.
  • the first electrode 110 has a first end 110a and a second end 110b.
  • the first end portion 110a is on the one second region 102b side.
  • the second end portion 110b is on the other second region 102b side, in other words, on the opposite side of the first end portion 110a.
  • the insulating layer 150 has a first end 150a and a second end 150b.
  • the first end 150a is on the one second region 102b side.
  • the second end 150b is on the other second region 102b side, in other words, on the opposite side of the first end 150a.
  • the first end 110 a of the first electrode 110 is outside the first end 150 a of the insulating layer 150.
  • the second end portion 110 b of the first electrode 110 is outside the second end portion 150 b of the insulating layer 150. Details will be described below.
  • the light emitting device 10 is a transflective OLED panel.
  • the light emitting device 10 includes a plurality of light emitting units 140.
  • Each light emitting unit 140 has a longitudinal direction.
  • the plurality of light emitting units 140 are arranged along a direction intersecting (specifically, orthogonal to) the longitudinal direction of each light emitting unit 140.
  • the plurality of light emitting units 140 are arranged in a stripe shape.
  • the light emitting device 10 includes a substrate 100, a first conductive layer 210, a second conductive layer 230, and a plurality of second electrodes 130.
  • the first conductive layer 210 includes a plurality of first electrodes 110, a first terminal 112, and a plurality of first wirings 114.
  • the first electrode 110, the first terminal 112, and the first wiring 114 are different portions of the first conductive layer 210.
  • the second conductive layer 230 has a second terminal 132 and a plurality of second wirings 134.
  • the second terminal 132 and the second wiring 134 are different portions of the second conductive layer 230.
  • the second electrode 130 is connected to the second terminal 132 via the second wiring 134.
  • the plurality of first electrodes 110 are arranged in a line. Specifically, each first electrode 110 has a longitudinal direction. The plurality of first electrodes 110 are arranged along a direction intersecting (specifically, orthogonal) to the longitudinal direction of each first electrode 110. In other words, the plurality of first electrodes 110 are arranged in a stripe shape. Each of the plurality of first electrodes 110 is connected to the first terminal 112 via each of the plurality of first wirings 114. In the example illustrated in FIG. 1, the first terminal 112 has a longitudinal direction along a direction intersecting the longitudinal direction of the first electrode 110 (specifically, a direction orthogonal to the first electrode 110). A voltage can be applied to each first electrode 110 via the first terminal 112. The first terminal 112 can be connected to an external element (not shown) via a conductive member (for example, a bonding wire or a lead terminal). As a result, a voltage can be applied to the first electrode 110 from an external element.
  • a conductive member for example, a bonding wire
  • the plurality of second electrodes 130 are arranged in a line. Specifically, each second electrode 130 has a longitudinal direction. The plurality of second electrodes 130 are arranged along a direction intersecting (specifically, orthogonal to) the longitudinal direction of each second electrode 130. In other words, the plurality of second electrodes 130 are arranged in a stripe shape. Each of the plurality of second electrodes 130 is connected to the second terminal 132 via each of the plurality of second wirings 134. In the example illustrated in FIG. 1, the second terminal 132 has a longitudinal direction along a direction intersecting the longitudinal direction of the second electrode 130 (specifically, an orthogonal direction). The first terminal 112 and the second terminal 132 face each other across the plurality of first electrodes 110 and the plurality of second electrodes 130.
  • a voltage can be applied to each second electrode 130 via the second terminal 132.
  • the second terminal 132 can be connected to an external element (not shown) via a conductive member (for example, a bonding wire or a lead terminal). Thereby, a voltage can be applied to the second electrode 130 from an external element.
  • the light emitting device 10 includes a substrate 100, a first electrode 110, an organic layer 120, a second electrode 130, an insulating layer 150, and a conductive portion 160.
  • the substrate 100 has a first surface 102 and a second surface 104.
  • the shape of the substrate 100 is a rectangle.
  • the second surface 104 is on the opposite side of the first surface 102 and is the back surface of the substrate 100.
  • the substrate 100 is made of a translucent material (for example, glass or resin).
  • On the first surface 102 of the substrate 100 there is a light emitting unit 140. The light from the light emitting unit 140 passes through the substrate 100 and is emitted from the second surface 104 of the substrate 100.
  • the substrate 100 may have flexibility or may not have flexibility.
  • the thickness of the substrate 100 is, for example, not less than 10 ⁇ m and not more than 1000 ⁇ m.
  • the thickness of the substrate 100 is, for example, 200 ⁇ m or less.
  • the substrate 100 is flexible and made of a resin, the substrate 100 includes, for example, PEN (polyethylene naphthalate), PES (polyethersulfone), PET (polyethylene terephthalate), or polyimide.
  • the first surface 102 (preferably both the first surface 102 and the second surface 104) of the substrate 100 may be covered with an inorganic insulating layer (for example, SiN x or SiON). In this case, even if the substrate 100 includes a material (for example, resin) having a high water vapor transmission rate, the water vapor is prevented from reaching the first surface 102 of the substrate 100.
  • the first conductive layer 210 (the first electrode 110, the first terminal 112, and the first wiring 114) is made of a light-transmitting conductive material, such as a metal oxide, more specifically, for example, ITO (Indium Tin Oxide), It consists of IZO (Indium Zinc Oxide), IWZO (Indium Tungsten Zinc Oxide) or ZnO (Zinc Oxide).
  • the film thickness of the first conductive layer 210 is, for example, not less than 10 nm and not more than 500 nm.
  • the first conductive layer 210 may be a stacked film including a metal oxide layer and a metal layer or a stacked film including a metal oxide layer and an alloy layer.
  • the film thickness of the metal layer and the alloy layer is extremely thin, for example, 10 nm or more and 50 nm or less.
  • the first conductive layer 210 may be made of a conductive organic material (eg, carbon nanotube or PEDOT / PSS).
  • the first terminal 112 or the first wiring 114 may be made of a metal layer or a metal alloy layer. In this case, the first terminal 112 and the first wiring 114 are preferably made of the same material as that of the conductive portion 160 (not shown).
  • the organic layer 120 has, for example, a hole injection layer, a light emitting layer, and an electron injection layer.
  • the light emitting layer is between the hole injection layer and the electron injection layer.
  • the hole injection layer is connected to the first electrode 110.
  • the first electrode 110 functions as an anode.
  • the electron injection layer is connected to the second electrode 130.
  • the second electrode 130 functions as a cathode.
  • the organic layer 120 is formed by, for example, vapor deposition or a coating process or a combination thereof.
  • the second electrode 130 is made of, for example, a metal selected from the first group consisting of Al, Au, Ag, Pt, Mg, Sn, Zn, and In or an alloy of a metal selected from the first group. Contains a metal layer. In this case, the second electrode 130 has a light shielding property.
  • the thickness of the second electrode 130 is, for example, not less than 10 nm and not more than 500 nm. However, the second electrode 130 may be formed using the material exemplified as the material of the first electrode 110.
  • the second electrode 130 is formed by sputtering or vapor deposition, for example.
  • the first region 102 a of the first surface 102 of the substrate 100 is a region from the first end 110 a to the second end 110 b of the first electrode 110. In other words, the entire first region 102 a overlaps the entire first electrode 110.
  • the second region 102b of the first surface 102 of the substrate 100 is a region from one first end 110a to the other second end 110b of the first electrodes 110 adjacent to each other.
  • the insulating layer 150 is on the first electrode 110.
  • the insulating layer 150 is made of, for example, an organic insulating material, specifically, for example, polyimide.
  • the insulating layer 150 includes a first portion 152 and a second portion 154.
  • the first portion 152 has a first end 150a.
  • the second portion 154 has a second end 150b.
  • the second portion 154 is separated from the first portion 152.
  • the first electrode 110, the organic layer 120, and the second electrode 130 overlap between the first portion 152 and the second portion 154.
  • the insulating layer 150 has an opening 156 between the first portion 152 and the second portion 154.
  • the shape of the opening 156 is a rectangle.
  • the light emitting unit 140 is defined by the opening 156.
  • a part of the first electrode 110, a part of the organic layer 120, and a part of the second electrode 130 are located in the opening 156.
  • a part of the first electrode 110, a part of the organic layer 120, and a part of the second electrode 130 function as the light emitting unit 140.
  • the width of the lower end of the first portion 152 (second portion 154) is wider than the width of the upper end of the first portion 152 (second portion 154). More specifically, the first portion 152 (second portion 154) has an inner surface facing the opening 156 side and an outer surface opposite to the inner surface. The inner side surface of the first portion 152 (second portion 154) is inclined so that the upper end of the inner side surface is located outside the lower end of the inner side surface. The outer surface of the first portion 152 (second portion 154) is inclined so that the upper end of the outer surface is located inside the lower end of the outer surface.
  • the first end 150 a is the lower end of the outer surface of the first portion 152.
  • the second end 150 b is the lower end of the outer surface of the second portion 154.
  • the light emitting unit 140 is defined by the lower end of the inner surface of the first portion 152 and the lower end of the inner surface of the second portion 154.
  • anodes are formed in a stripe pattern.
  • an insulating layer is formed so as to cover the anode end so that the anode and a cathode formed in a shape perpendicular to the anode do not electrically short-circuit at the anode end.
  • the insulating layer covers the adjacent anode end portions, the insulating layer itself is in partial contact with the glass substrate.
  • the adjacent anodes are largely separated.
  • the insulating layer covers the anode end and is formed in contact with the glass substrate.
  • the first end 150a of the insulating layer 150 is inside the first end 110a of the first electrode 110.
  • the insulating layer The width of 150 can be reduced.
  • the width of the first portion 152 (the distance between the lower end of the inner surface of the first portion 152 and the lower end of the outer surface of the first portion 152 (first end portion 150a)).
  • the width of the second portion 154 (the distance between the lower end of the inner surface of the second portion 154 and the lower end (second end portion 150b) of the outer surface of the second portion 154) is, for example, 30 ⁇ m or more and 50 ⁇ m or less. can do.
  • the distance from the first end 150a to the second end 150b of the insulating layer 150 is the distance from the first end 110a to the second end 110b of the first electrode 110 (that is, the width of the first electrode 110). For example, it is 80% or more and 95% or less, preferably 90% or more and 100% or less. When the ratio is 80% or more, the width of the opening 156 (light emitting unit 140) can be increased. When the ratio is 95% or less, even if the insulating layer 150 is deviated from the design position, in the actual light emitting device 10, the insulating layer 150 is reliably positioned on the first electrode 110.
  • the organic layer 120 has a first end 120a and a second end 120b.
  • the first end 120 a is on the same side as the first end 110 a of the first electrode 110.
  • the second end 120b is on the same side as the second end 110b of the first electrode 110, in other words, on the opposite side of the first end 120a.
  • the first end 120 a is inside the first end 150 a of the insulating layer 150, more specifically, the upper end of the outer surface of the first portion 152 of the insulating layer 150. And the upper end of the inner surface of the first portion 152 of the insulating layer 150.
  • the second end 120 b is on the inner side of the second end 150 b of the insulating layer 150, and more specifically, the upper end of the outer surface of the second portion 154 of the insulating layer 150. And the upper end of the inner surface of the second portion 154 of the insulating layer 150.
  • the second electrode 130 has a first end portion 130a and a second end portion 130b.
  • the first end portion 130 a is on the same side as the first end portion 110 a of the first electrode 110.
  • the second end 130b is on the same side as the second end 110b of the first electrode 110, in other words, on the opposite side of the first end 130a.
  • the first end portion 130 a is on the inner side of the first end portion 150 a of the insulating layer 150, and more specifically, the upper end of the outer surface of the first portion 152 of the insulating layer 150.
  • the upper end of the inner surface of the first portion 152 of the insulating layer 150 and more specifically, inside the first end portion 120 a of the organic layer 120.
  • the second end 120 b is on the inner side of the second end 150 b of the insulating layer 150, and more specifically, the upper end of the outer surface of the second portion 154 of the insulating layer 150. And the upper end of the inner surface of the second portion 154 of the insulating layer 150, and more specifically, inside the second end portion 120 b of the organic layer 120.
  • the first end 130a and the second end 130b of the second electrode 130 are separated by a distance d1.
  • the first end 130a of the second electrode 130 and the first end 150a of the insulating layer 150 (or the second end 130b of the second electrode 130 and the second end 150b of the insulating layer 150) are separated by a distance d2. Yes.
  • One first end 150a and the other second end 150b of the insulating layers 150 adjacent to each other are separated by a distance d3.
  • the distance d3 may be wider or narrower than the distance d1.
  • the distance d2 is smaller than the distance d3.
  • the width of the insulating layer 150 can be reduced.
  • the distance d2 can be made considerably smaller than the distance d3.
  • the distance d2 (second distance) can be 0.2 times or less of the distance d3 (first distance) (d2 may be 0).
  • the ratio d2 / d1 of the distances d1 and d2 is, for example, 0 or more and 0.2 or less (d2 may be 0).
  • the ratio d3 / d1 of the distances d1 and d3 is, for example, not less than 0.3 and not more than 3.
  • the distance d1 is, for example, not less than 50 ⁇ m and not more than 500 ⁇ m.
  • the distance d2 is, for example, 0 ⁇ m or more and 100 ⁇ m or less.
  • the distance d3 is, for example, not less than 15 ⁇ m and not more than 1000 ⁇ m.
  • the region having the distance d1 having the second electrode 130 has the lowest light transmittance among the region having the distance d1, the region having the distance d2, and the region having the distance d3.
  • a part of the insulating layer 150 is located in the region of the distance d2, and has the next lowest light transmittance.
  • neither the second electrode 130 nor the insulating layer 150 is located in the region of the distance d3.
  • the light transmittance at the distance d3 is higher than the light transmittance at the distance d1 and the distance d2.
  • the region of the distance d1 is constant (for example, the first end portion 130a of the second electrode 130 is the upper end of the outer surface of the first portion 152 of the insulating layer 150 and the upper end of the inner surface of the first portion 152 of the insulating layer 150).
  • the second end portion 130b of the second electrode 130 is between the upper end of the outer surface of the second portion 154 of the insulating layer 150 and the upper end of the inner surface of the second portion 154 of the insulating layer 150).
  • the distance d3 becomes longer and the distance d2 becomes shorter than in the prior art. For this reason, the light transmittance of the light emitting device 10 is increased.
  • the light emitting device 10 is suppressed from functioning as a filter that blocks light of a specific wavelength.
  • the light transmittance of the insulating layer 150 may differ depending on the wavelength.
  • the light emitting device 10 can function as a filter that blocks light having a low light transmittance of the insulating layer 150 when the width of the insulating layer 150 is wide.
  • the distance d2 is smaller than the distance d3 and smaller than d2 of the conventional transflective OLED panel. In other words, when the region of the distance d1 is constant, the width of the insulating layer 150 can be reduced. For this reason, it is suppressed that the light-emitting device 10 functions as a filter which interrupts
  • the conductive part 160 extends linearly along the longitudinal direction of the first electrode 110.
  • the conductive part 160 is connected to the first electrode 110.
  • the conductive part 160 is provided to suppress a voltage drop of the first electrode 110.
  • the conductive portion 160 is covered with the first portion 152 on the first electrode 110.
  • the conductive portion 160 may be formed on the second portion 154 side.
  • the conductivity of the conductive part 160 is higher than the conductivity of the first electrode 110.
  • the conductive portion 160 is made of metal or a metal alloy, and is, for example, MAM (Mo / Al / Mo laminate).
  • the first conductive layer 210 (first electrode 110, first terminal 112 and first wiring 114) and second conductive layer 230 (second terminal 132 and second wiring 134) are formed on the first surface 102 of the substrate 100.
  • ITO Indium Tin Oxide
  • a mask film (specifically, a photoresist) having a desired pattern is formed on the conductive layer. The mask film covers a region where the first conductive layer 210 is formed and a region where the second conductive layer 230 is formed.
  • the conductive layer is etched with an etchant using the mask film as a mask. Thereby, the first conductive layer 210 and the second conductive layer 230 are formed.
  • the width of the first electrode 110 (the distance between the first end 110a and the second end 110b) is 300 ⁇ m, and the distance between the ends of the adjacent first electrodes 110 (the short side of the second region 102b). ) was 400 ⁇ m.
  • the conductive part 160 is formed on the first electrode 110. Specifically, a MAM (Mo / Al / Mo laminate) is formed on the first electrode 110 as a conductive layer. Next, a mask film (specifically, a photoresist) having a desired pattern is formed on the conductive layer. The mask film covers a region where the conductive portion 160 is formed. Next, the conductive layer is etched with an etchant using the mask film as a mask. Thereby, the conductive part 160 is formed. At this time, the line width of the conductive portion 160 was 20 ⁇ m.
  • the insulating layer 150 is formed on the first electrode 110 and the conductive part 160. Specifically, photosensitive polyimide is applied on the first surface 102 of the substrate 100, the first electrode 110, and the conductive portion 160, and dried. Next, the photosensitive polyimide is patterned into a desired pattern by exposure and development. The developed polyimide pattern is positioned inside both ends (first end portion 110a and second end portion 110b) of the first electrode 110 in the width direction of the first electrode 110. Next, the polyimide is cured by baking. Thereby, the insulating layer 150 is formed.
  • the distance between the first end 110a of the first electrode 110 and the first end 150a of the insulating layer 150 and the distance between the second end 110b of the first electrode 110 and the second end 150b of the insulating layer 150 are as follows. 10 ⁇ m. Moreover, the width
  • the organic layer 120 including the light emitting layer is formed by vapor deposition.
  • the organic layer 120 is formed on the first electrode 110 provided with the opening in the insulating film 150 using a shadow mask having a stripe-like opening.
  • Al is formed as the second electrode 130 by vapor deposition.
  • Al is formed in a stripe shape on the organic layer 120 using a shadow mask whose opening in the short side direction of the stripe is smaller than the shadow mask used in the organic layer 120.
  • sealing for moisture prevention is performed, and the light emitting device 10 is manufactured.
  • the first end portion 110a and the second end portion 110b of the first electrode 110 are outside the first end portion 150a and the second end portion 150b of the insulating layer 150, respectively. This prevents the first end 150a and the second end 150b of the insulating layer 150 from contacting the substrate 100. For this reason, even when the insulating layer 150 is made of a material that is easily peeled from the substrate 100, the insulating layer 150 is prevented from being peeled from the substrate 100.
  • FIG. 4 is a diagram showing a first modification of FIG.
  • the conductive portion 160 may be covered with the first electrode 110.
  • the conductive portion 160 is on the first surface 102 of the substrate 100 and below the first portion 152 of the insulating layer 150.
  • the conductive portion 160 may be formed on the second portion 154 side of the insulating layer 150.
  • the conductive part 160 is covered with the first electrode 110.
  • the first end portion 110a and the second end portion 110b of the first electrode 110 are outside the first end portion 150a and the second end portion 150b of the insulating layer 150, respectively. This prevents the first end 150a and the second end 150b of the insulating layer 150 from contacting the substrate 100.
  • FIG. 5 is a diagram showing a second modification of FIG.
  • the organic layer 120 since the organic layer 120 is transparent, the organic layer 120 may be located over the plurality of first regions 102a and the plurality of second regions 102b. In other words, the organic layer 120 does not have an end (for example, the first end 120a or the second end 120b in FIG. 2) between the light emitting units 140 adjacent to each other.
  • the organic layer 120 is positioned between the one electrode 110.
  • FIG. 6 is a diagram showing a third modification of FIG.
  • the insulating layer 150 does not have the opening 156 (FIG. 2). More specifically, the first portion 152 of the insulating layer 150 has a first end 150a and a second end 150b. In the direction from the first region 102 a to the second region 102 b, the second end 150 b of the insulating layer 150 is between the first end 150 a of the insulating layer 150 and the second end 110 b of the first electrode 110.
  • the insulating layer 150 includes a portion other than the first portion 152 (for example, the second portion 154 in FIG. 2) between the second end portion 150 b of the first portion 152 and the second end portion 110 b of the first electrode 110.
  • variety (distance between the 1st edge part 150a of the 1st part 152 and the 2nd edge part 150b) of the 1st part 152 is 30 micrometers or more and 50 micrometers or less, for example.
  • the first portion 152 of the insulating layer 150 covers the conductive portion 160 on the first electrode 110. This prevents the conductive part 160 from being short-circuited with the second electrode 130.
  • the light emitting unit 140 is a region from the second end 150b of the first portion 152 to the second end 130b of the second electrode 130.
  • first end portion 110a and the second end portion 110b of the first electrode 110 are respectively from the first end portion 150a and the second end portion 150b of the insulating layer 150 (first portion 152). Is also on the outside. This prevents the first end 150a and the second end 150b of the insulating layer 150 from contacting the substrate 100.

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Abstract

Une première partie d'extrémité (110a) d'une première électrode (110) est plus proche d'une seconde région (102b). Une seconde partie d'extrémité (110b) de la première électrode (110) est plus proche d'une autre seconde région (102b). Une première partie d'extrémité (150a) d'une couche isolante (150) est plus proche de la seconde région (102b). Une seconde partie d'extrémité (150b) de la couche isolante (150) est plus proche de l'autre seconde région (102b). Dans la direction allant de la première région (102a) à la seconde région (102b), la première partie d'extrémité (110a) de la première électrode (110) est située plus loin à l'extérieur que la première partie d'extrémité (150a) de la couche isolante (150). Dans la direction allant de la première région (102a) à l'autre seconde région (102b), la seconde partie d'extrémité (110b) de la première électrode (110) est située plus loin à l'extérieur que la seconde partie d'extrémité (150b) de la couche isolante (150).
PCT/JP2016/062432 2016-04-19 2016-04-19 Dispositif électroluminescent WO2017183118A1 (fr)

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Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2012133716A1 (fr) * 2011-03-29 2012-10-04 Ｎｅｃライティング株式会社 Dispositif électroluminescent organique, procédé de fabrication associé, et dispositif d'éclairage électroluminescent organique
JP2015158981A (ja) * 2014-02-21 2015-09-03 パナソニックＩｐマネジメント株式会社 有機エレクトロルミネッセンス素子及び照明装置
WO2016042638A1 (fr) * 2014-09-18 2016-03-24 パイオニア株式会社 Dispositif électroluminescent

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2012133716A1 (fr) * 2011-03-29 2012-10-04 Ｎｅｃライティング株式会社 Dispositif électroluminescent organique, procédé de fabrication associé, et dispositif d'éclairage électroluminescent organique
JP2015158981A (ja) * 2014-02-21 2015-09-03 パナソニックＩｐマネジメント株式会社 有機エレクトロルミネッセンス素子及び照明装置
WO2016042638A1 (fr) * 2014-09-18 2016-03-24 パイオニア株式会社 Dispositif électroluminescent

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