WO2007148771A1 - カプセル状マイクロ発光素子及びその製造方法 - Google Patents
カプセル状マイクロ発光素子及びその製造方法 Download PDFInfo
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- WO2007148771A1 WO2007148771A1 PCT/JP2007/062558 JP2007062558W WO2007148771A1 WO 2007148771 A1 WO2007148771 A1 WO 2007148771A1 JP 2007062558 W JP2007062558 W JP 2007062558W WO 2007148771 A1 WO2007148771 A1 WO 2007148771A1
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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
- H10K50/10—OLEDs or polymer light-emitting diodes [PLED]
- H10K50/182—OLED comprising a fiber structure
-
- 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
- H10K50/80—Constructional details
-
- 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
- H10K50/80—Constructional details
- H10K50/84—Passivation; Containers; Encapsulations
- H10K50/844—Encapsulations
-
- 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
- H10K59/80—Constructional details
- H10K59/87—Passivation; Containers; Encapsulations
- H10K59/873—Encapsulations
-
- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
- H10K85/00—Organic materials used in the body or electrodes of devices covered by this subclass
- H10K85/60—Organic compounds having low molecular weight
- H10K85/631—Amine compounds having at least two aryl rest on at least one amine-nitrogen atom, e.g. triphenylamine
Definitions
- the present invention relates to a force-pseed microphone-mouth light emitting device and a method for manufacturing the same.
- organic EL elements that emit light when a current is passed through the light-emitting layer and inorganic EL elements that emit light when a voltage is applied to the light-emitting layer are known as light-emitting elements. It is applied to LCD backlights and displays.
- a light-emitting element for example, in JP-A-10-64678, at least one layer containing an organic compound having carrier transportability is formed on at least a part of the outer peripheral surface of a linear # ⁇ book.
- a linear light emitting device 1 in which an organic light emitting layer and a transparent electrode layer are laminated in this order.
- 2002-538502 discloses a light-emitting element 2 that includes a plurality of light-emitting elements on a Fino, each of which includes two electrodes, and supplies an electric signal between them to cause the light-emitting elements to emit light. Yes.
- a part of the outer peripheral surface of organic difficulty is formed with an electrode layer, at least one organic light-emitting layer containing a carrier compound having carrier transport, and transparent.
- a linear light-emitting element 3 in which electrode layers are laminated in this order is disclosed.
- JP-A-2002-184580 a fiber core having a first electrode on the outside, at least one light-emitting layer disposed on the outer surface of the first electrode, and an knitting property disposed on the light-emitting layer A fiber-like light emitting element 4 including the second electrode is disclosed.
- a fiber-like light emitting element 4 including the second electrode By using a plurality of these linear light emitting elements 1 to 4 and arranging them on a substrate, it is possible to make a sheet-like light emitter.
- gazette A tiled display is disclosed, and a tile (light emitting element 5) formed by a plurality of pixel forming elements used therein is disclosed.
- the sheet-like illuminant is S using the linear light-emitting elements 1 to 4, the obtained sheet-like illuminant is still not sufficient in terms of flexure 14.
- sheet-like light emitters are formed using organic EL materials, it is very important from the viewpoint of lengthening the light emitters that the light emitting layer is shielded from oxygen and moisture.
- a flexible flexiform [4 is used and sealed with a film with a very high gas barrier property, etc. It was necessary to do.
- no film for sealing has sufficient properties for gas barrier properties and flexure properties.
- the present invention has a very excellent flexible film, and does not require a very high gas barrier property for the characteristics of the film used for the sealing.
- An object of the present invention is to provide a force-pseudo-type micro light-emitting device that makes it possible to obtain a sheet-like light emitter that can be easily repaired, and a method for efficiently producing the capsule-like micro light-emitting device To do.
- the present invention includes a light emitting unit having at least a light emitting layer and constituting one pixel, a capsule-shaped sealing layer for individually sealing the light emitting unit, a first electrode for applying a voltage to the light emitting unit, and A capsule-like micro light emitting device comprising: a second electrode;
- the light emitting layer emits light by applying a voltage to the light emitting portion via the first electrode and the second electrode.
- a sheet-like light emitter is composed of a capsule-shaped light emitting element in which one pixel is already sealed. Since the light-emitting elements constituting the pixels are individually sealed, it has a very high gas barrier property that has been necessary in the past for sealing light-emitting bodies having a plurality of light-emitting points on the substrate. It is not always necessary to have a film. In addition, if a defect occurs in a part of the sheet-like light emitter, it is easy to replace the force-pseudo microphone mouth light-emitting element of the defective pixel with a new force-pseudo microphone mouth light-emitting element. Can be repaired.
- the capsule-shaped micro light-emitting element itself is small and forms dots on the sheet surface, so even at the age of bending the sheet-shaped light emitter. Since the light receiving element itself receives a small force and is hardly affected by the difference in flexibility between the light emitting element and the substrate, it can be bent sufficiently.
- the sheet-like illuminant is sufficiently flexible having elasticity by changing the substrate to be used. According to the force-pseed microphone mouth light-emitting element, it is possible to impart extremely excellent flexure I 1 life to a light-emitting element having a size of a sheet.
- the force-pseed microphone mouth light-emitting element has an average diameter of 1 to: L 0 00 m, more preferably 1 to 500 m, and a length:! To 2 00 m, more preferably A substantially cylindrical cabseri shape having a ratio of 1 to 500 mm and an average diameter to length ratio (average diameter: length) of 1: 1 to 1: 5 is preferable.
- the average diameter and length are less than the above-mentioned values, workability at the time is reduced.
- the above upper limit is exceeded, unevenness in the way of current flow and voltage application will become large, the tension from the element itself will increase, and furthermore, the element itself will become too large, and this will be placed.
- the light emitting layer is a cylindrical light emitting layer
- the first electrode is placed in the inner periphery of the cylindrical light emitting layer
- the second electrode is placed in the outer periphery of the cylindrical light emitting layer. It is preferable that
- the light emitting layer is preferably made of an organic EL material or an inorganic EL material, and particularly preferably an organic EL material. Using organic EL materials and inorganic EL materials makes it possible to emit light more efficiently.
- the capsule micro light-emitting element has one of the first electrode and the second electrode being an anode, and the light-emitting portion is a hole transport layer and a Z or hole disposed between the anode and the light-emitting layer. It is preferable to provide an injection layer. By providing an electron transport layer, an electron injection layer, a hole transport layer, or a hole injection layer, the capsule micro light-emitting element can emit light more efficiently.
- the present invention also includes a step of applying a light emitting layer material on the outer periphery of a linear first electrode material to form a cylindrical light emitting layer, and a second electric capacitor on the outer periphery of the cylindrical light emitting layer.
- the exposed portion as described above is formed by irradiating the cylindrical laminated body with a laser at a predetermined interval.
- a microphone-like light emitting device can be used.
- the size design of the capsule microphone mouth light-emitting element can be easily changed by changing the laser irradiation interval.
- each process can be performed continuously by the Sit line of ⁇ !. it can.
- the cylindrical laminated body in which the sealing layer is formed is irradiated with a laser to expose the exposed part. It is preferable to include a step of exposing the material again. Before cutting the cylindrical laminate on which the sealing layer is formed at the exposed part, it is electrically connected to the power supply after cutting the cylindrical laminate at the exposed part by irradiating a laser to expose the exposed part again. In order to form an electrode portion for the purpose of the formation, it is not necessary to separately form a sealing layer formed on the outer periphery of the exposed portion, and therefore it becomes possible to MBize the capsule-like micro-mouth light emitting element more efficiently. .
- the first electrode is a ridge, and before applying the light emitting layer material, the electron injection layer material is applied on the outer periphery of the linear first electrode material and dried. It is preferable to include a process and a process of applying and applying Z or electron transport its material.
- the second electrode is an anode, and before supplying the second electrode material, a hole transport layer material is applied on the outer periphery of the linear first electrode material. It is preferable to include a step of tapping and / or a step of applying and applying a positive ⁇ layer material.
- the first electrode is the anode
- the hole transport layer material is applied on the outer periphery of the linear first electrode material.
- a step of applying a Z or hole injection layer material in the $ 3 ⁇ 4i method of the capsule-like microphone-mouth light emitting device the second electrode is a soot, and the second electrode material It is preferable to include a step of applying and drying the electron injection layer material on the outer periphery of the linear first electrode material and a step of applying Z or the electron transport layer material to make the thigh before supplying the material.
- FIG. 1 is a schematic view of a preferred embodiment of a capsule-like microphone-mouth light emitting element.
- FIG. 2 is a schematic diagram of a preferred embodiment of the force-pseudo microphone-mouth light-emitting element of the present invention shown in FIG.
- FIG. 3 is a cross-sectional view taken along the line BB ′ of a preferred embodiment of the capsule micro light-emitting device shown in FIG.
- FIG. 4 is a schematic diagram showing a state in which laser is irradiated on the outer periphery of the cylindrical laminate.
- FIG. 5 is a view showing a state in which a cylindrical laminate having a sealing layer is irradiated with a laser beam. Explanation of symbols
- the capsule-shaped micro light-emitting element includes a light-emitting portion having at least a light-emitting layer and constituting one pixel, a capsule-shaped sealing layer that individually seals the light-emitting portion, and a first for applying a voltage to the light-emitting portion.
- An electrode and a second electrode are examples of a light-emitting portion having at least a light-emitting layer and constituting one pixel.
- FIG. 1 A schematic diagram of a preferred embodiment of a capsule-like microphone-mouth light emitting element is shown in FIG.
- the capsule microphone light emitting element has a capsule shape of a circle tt.
- the “capsule shape” refers to a shape having a ratio of the length L to the diameter d of the cross section (d: L) force::! To 1: 5.
- the cross-section ⁇ - ⁇ ' is circular, but if the cross-section is not circular, the diameter of the circumscribed circle of the cross-sectional shape is the diameter d.
- the length L is usually 2 0 0 0 ⁇ m or less, more preferably 1 O 2 O 0 jum or less, and further preferably 5 0 0 ⁇ m or less.
- FIG. 2 is a schematic cross-sectional view of a preferred embodiment of the capsule-shaped micro light-emitting device shown in FIG. 1, taken along the line AA ′, and FIG. FIG. 6 is a cross-sectional view taken along the line BB ′ of an embodiment.
- the capsule-shaped microphone-mouth light emitting element shown in FIG. 2 uses an organic EL material suitable for the light emitting layer. The outer periphery of the ⁇ 3 ⁇ 4?
- the cocoon layer 11 (Bus electrode) 10, the cocoon layer 11, and the cocoon layer 11
- An electron transport layer 12 disposed above, a light-emitting layer 13 disposed on the outer periphery of the electron transport layer 12, a hole transport layer 14 disposed on the outer periphery of the light-emitting layer 13;
- An anode layer 15 disposed on the outer periphery of the hole transport layer 14, an anode 3 ⁇ 4 ⁇ (bus electrode) 16, and a capsule-shaped sealing layer 17 disposed so as to cover these capacities Prepare.
- the light emitting section includes a light emitting layer 13, an electron transport layer 12, and a hole transport layer 14.
- ⁇ »1 0 electrically connects the capsule-like micro light-emitting element to an external power source (not shown)»
- the material for forming 0 may be the material of ilM.
- a conductive metal such as nickel, aluminum, or copper may be used.
- ⁇ »10 preferably has a non-planar cross section (for example, a circular cross section, a polygonal shape, etc.). In this embodiment, a circular cross section is used.
- ⁇ 3 ⁇ 4? 10 may be hollow (cylindrical) or solid (cylindrical).
- the diameter of ⁇ 3 ⁇ 4 ⁇ 10 is preferably about 1 to 100 ⁇ m, more preferably about 10 to 300 m. When the diameter is less than the above lower limit, workability during production becomes difficult. On the other hand, when the above upper limit is exceeded, unevenness in the flow of current and voltage is increased, and heat generation from the element itself is increased. If the cross section is not circular, the diameter is the diameter of the circumscribed circle of the cross section.
- the eaves layer 1 1 is arranged so that electrons are emitted at a relatively low voltage.
- the cathode layer material for forming the cathode layer 11 is preferably a material having a relatively small work function and easy ftA of electrons to the light emitting layer. It may be a metal such as barium, calcium, gold, magnesium or magnesium / silver alloy or an oxide thereof, and further, a multilayer structure in which a layer made of aluminum, silver, chromium, etc. is formed on these metals. It may be a thing.
- m materials such as gold, silver, copper, chromium, and aluminum are used.
- the thickness of the cocoon layer 1 1 may be changed according to the target design.
- the thickness of the cathode layer 11 is preferably about 3 to 50 nm. If the thickness of the eaves layer 11 is out of the above range, electrons will not be sufficiently injected into the light emitting layer.
- the electron transport layer 12 disposed on the outer periphery of the cathode layer 11 is preferably disposed in order to improve the efficiency of the electron transport effect.
- the electron transport layer 1 2 may be formed by MOT using a material having electron transport properties. Examples of the material include polycyclic hydride carbon series derivatives, heterocyclic compounds, tris (8-quinolinite) aluminum. It is.
- the light emitting layer 13 contains a material capable of emitting light by applying a voltage from the first electrode and the second electrode (by passing a current).
- a material capable of emitting light by applying a voltage from the first electrode and the second electrode by passing a current.
- Any material capable of emitting light by applying a current or applying a voltage may be used, and an organic EL material or an organic EL material is particularly preferable.
- the organic EL material can be any organic material that can emit light by applying a voltage (by passing an electric current).
- distyryl biphenyl-based materials dimesityl-polyl-based materials, stilbene-based materials, dipyrylyl-dioxide Nobenzene material, benzoxazole-based material, distyryl-based material, strong rubazol-based material, dibenzochrysene-based material, arylamine-based material, pyrene-substituted oligothiophene-based material, PPV oligomer-based material, strong rubazole-based material, poly Examples include fluorene-based materials.
- the inorganic EL material may be any inorganic material that can emit light when voltage is applied.
- the thickness of the light emitting layer 13 may be changed by 3 ⁇ 413 ⁇ 4 according to the target design, and is preferably about 10 to 20 Onm. If the thickness is less than the lower limit, recombination of electrons and holes does not occur sufficiently, the brightness is not sufficient, or $ S becomes difficult. On the other hand, when the upper limit is exceeded, the applied voltage decreases.
- the voltage applied to the light-emitting layer 13 may be changed according to the design. From the viewpoint of efficient light emission, about 2 to: L 00 port is preferable.
- the hole transport layer 14 is suitably disposed in order to improve the efficiency of the hole transport effect when the light emitting layer is an organic EL material that is suitable for the present invention.
- the hole transport layer material for forming the hole transport layer 14 include N, N'-diphenyl N, N'-di (3-methylethylene phenyl) 4,4'-diaminobiphenyl ( TPD), NPB (4,4'-bis [N- (1-naphthylhy 1) -N-pheny 1 ami no] bi pheny 1) and the like.
- the thickness of the hole transport MS 14 may be changed according to the intended design, and is preferably about 5 to 10 Onm. If the thickness is less than the lower limit, the production becomes difficult or the effect of hole transport cannot be obtained sufficiently. On the other hand, when the upper limit is exceeded, the applied voltage increases.
- the anode layer material for forming the anode layer 15 may be any material that can form an anode, such as indium tin oxide (ITO), tin oxide, nickel, or gold. Can be mentioned.
- the thickness of the anode layer 15 is suitable for the intended design! It may be further changed, and preferably about 5 to 300 nm. When the thickness exceeds the upper limit, the applied voltage increases.
- the anode terminal 16 is arranged to electrically connect the light emitting element to an external power source (not shown) via the anode terminal 16.
- an external power source not shown
- the sealing layer 17 is disposed to protect the light emitting part including the light emitting layer 13 from the outside air or the like.
- the sealing material used to form the sealing layer 17 include a transparent hatched epoxy resin, a photocurable epoxy resin, silicon oxide M, and glass.
- the thickness of the sealing layer 17 may be appropriately changed according to the target design, and is preferably about 10 to 300 nm. When the thickness is less than the lower pg *, the sealing is not sufficiently performed, and the s ⁇ of the sealing itm is not sufficient. On the other hand, when the upper limit is exceeded, production becomes difficult, or emitted light is not sufficiently transmitted.
- the present invention is not limited to the embodiment.
- the shape is cylindrical and the B-B 'cross section is circular, but the shape of the capsule micro light emitting element is elliptical or polygonal in cross section. There may be.
- the average diameter is usually 1 to 100 0m, more preferably 1 to 500 ⁇ m, more preferably 10 to 300 0m, and the length is l to 2 0 0 0 ⁇ m, more preferably 1 to: L 0 0 0 ⁇ m, more preferably 1 to 5 0 0 jt m, and the ratio of average diameter to length (average diameter: length) is 1 : 1-1: 5 substantially cylindrical force Pse 1 / 3 ⁇ 4 shape may be used.
- the capsule micro light-emitting device of the above embodiment includes m- (bus electrode) 10, mi ⁇ , electron transport layer 12, light-emitting layer 13, hole transport layer 14, and anode.
- the capsule micro light-emitting element has at least a light-emitting layer and emits light constituting one pixel.
- a capsule-shaped sealing layer that individually seals the light emitting part, and a first electrode and a second electrode for applying a voltage to the light emitting part, and other configurations are not particularly limited .
- the light emitting layer is made of a suitable organic EL material, for example, a capsule-shaped micro light emitting device includes an electron injection layer in which the light emitting portion is disposed on the outer periphery of the cathode layer 11 in order to improve the effect of electron injection.
- the capsule micro light-emitting element may include a hole injection layer disposed so that the light-emitting portion is in contact with the inner periphery of the anode layer 15.
- the hole injection layer material for forming the hole injection layer examples include phthalocyanine complexes such as copper phthalocyanine, 4, 4 ', 4 "single squirrel (3-methylphenylphenylamino) trif Aromatic amine derivatives such as enylamine, hydrazone derivatives, strong rubazole derivatives, triazole derivatives, imidazole derivatives, oxadiazole derivatives having amino groups, polythiophene, etc.
- the thickness of the hole injection layer is Preferably, it is about 5 to 30 O nm When the thickness exceeds the upper limit, the applied voltage increases.
- the method of the capsule micro light-emitting device includes the step (I) of applying a light-emitting layer material on the outer periphery of a linear first electrode material and forming a cylindrical light-emitting layer by covering the outer periphery of the linear light-emitting electrode material, A second electrode material is supplied on top to form a cylindrical second electrode layer to obtain a cylindrical laminate (II) and a laser beam is irradiated on the outer periphery of the cylindrical laminate at predetermined intervals.
- Forming the sealing layer cutting the cylindrical laminate formed with the sealing layer at the exposed portion, and individually sealing the light emitting portion having at least the light emitting layer and constituting one pixel.
- Capsule-shaped micro light-emitting element comprising: capsule-shaped sealing layer to be stopped; and first electrode and second electrode for applying voltage to light-emitting portion Including step (V).
- a manufacturing method of a capsule-like microphone-mouth light emitting device in which the first electrode is a cathode and the second electrode is an anode will be described as an example.
- a light emitting layer material is applied on the outer periphery of the linear first electrode material, and a tubular light emitting layer is formed by tapping.
- the first electrode material a material consisting only of a wire made of a ⁇ material or a material having a cylindrical cathode layer on the outer periphery of the core wire may be used, but a cylindrical cathode layer is provided on the outer periphery of the core wire. It is preferable to use the materials.
- the material and the cathode layer material for forming the m3 ⁇ 4 layer may be the same as the material and is layer material described in the above-mentioned capsule-shaped microphone-mouth light emitting element.
- a method for supplying the material to the material for example, a vapor deposition method such as vacuum vapor deposition and chemical vapor deposition, an electroplating method, an electroless plating method, or an electronic method may be used.
- the method for applying the layer material include dipping, spraying, printing, printing, or using ij hair.
- the light emitting layer material may be mixed with an appropriate solvent (water or organic solvent, etc.) as a mixed solution.
- the preparation method of the mixed solution and its viscosity, viscosity, and the like may be appropriately prepared by reversing the method.
- a method of thighing after applying the light emitting layer material for example, a method of natural drying, a method of heating and heating, etc. may be reversed.
- heating the thigh it is preferable to heat the grass for 5 minutes to 5 hours under a temperature condition that does not damage the light emitting layer material below the glass transition temperature of the light emitting layer material.
- the electron injection layer material should be applied on the outer periphery of the linear first electrode material before applying the light emitting layer material. Is preferred.
- an electron transport layer is disposed in a capsule-shaped micro light emitting device, it is preferable to apply an electron transport layer material before applying the light emitting layer material.
- Electron injection layer material and electron transport layer material As the above, the same materials as the electron injection layer material and the electron transport layer material described in the above-described capsule-shaped micro light-emitting element may be used.
- a method for applying and applying the electron injection layer material or the electron transport layer material a method similar to the method for applying the light emitting layer material and the method for applying it may be adopted.
- a second electrode material is supplied onto the outer periphery of the cylindrical light emitting layer to form a cylindrical second electrode layer, thereby obtaining a cylindrical laminate. Since the second electrode is an anode, the second electrode material is an anode layer material for forming an anode layer.
- the same anode layer material as described in the above-described capsule-shaped micro light-emitting element may be used.
- the method for supplying the anode layer material may be changed by, for example, a vapor deposition method such as vacuum vapor deposition or chemical vapor deposition, an electric plating method, an electroless plating method, an electron impact method, or a Zogel method.
- a vapor deposition method such as vacuum vapor deposition or chemical vapor deposition
- an electric plating method such as vacuum vapor deposition or chemical vapor deposition
- an electric plating method such as electroless plating method
- an electron impact method or a Zogel method.
- the hole transport material is applied on the outer periphery of the linear first tree material and dried. It is preferable to include the process to make.
- the hole injection layer in the capsule light emitting device, it is preferable to include a step of applying a hole injection layer material and turning it.
- the hole transport layer material and the 1E injection layer material the same materials as the electron injection layer material and the electron transport layer material described in the above-described capsule-shaped microphone opening light emitting element may be used.
- a method for applying the hole transport layer material or the hole 3 ⁇ 4 ⁇ layer material and a method for applying the hole transport layer material a method similar to the method for applying the light emitting layer material and the method for drying may be used.
- step (111) an exposed portion where the first electrode material is exposed is formed at predetermined intervals by irradiating the outer periphery of the cylindrical laminated body with laser at predetermined intervals.
- step (III) of laser irradiation will be described with reference to FIG.
- FIG. 4 is a view showing a state in which an exposed portion 22 2 where the first electrode material is exposed is formed by irradiating the laser L from the laser light source 21 on the outer periphery of the cylindrical laminate 20.
- the arrow ⁇ indicates the direction of travel.
- the laser single light source 21 a laser capable of irradiating a pulsed high-power laser L is preferable as long as it can iron the layer of the first electrode material!
- the laser L is preferably a pulsed laser having an irradiation intensity of 5 WZ cm 2 to 100 W / cm 2 .
- Laser L is preferably a single laser beam from the viewpoint of improving production efficiency.
- the interval at which the laser L is irradiated may be appropriately adjusted according to the design of the target capsule micro light-emitting element.
- the exposed portion 22 where the first electrode material is exposed may be formed by irradiating the outer circumference of the cylindrical laminate 20 with the laser L.
- step (IV) a sealing material is applied on the outer periphery of the cylindrical laminate on which the exposed portions are formed, and then a sealing layer is formed.
- the sealing material a material similar to the sealing material described in the capsule micro light-emitting element described above may be used.
- the method for applying the sealing material 1 and the method for applying it the same method as the method for applying the light emitting layer material and the method for applying the sealing material described above may be used.
- a method for forming the sealing layer A method of forming a sealing layer by vapor-depositing a sealing material may be employed In step (V), the cylindrical laminated body on which the sealing layer is formed is cut at the exposed portion.
- a method of cutting with a high-power laser can be reversed as the method of cutting the exposed portion with a light-emitting portion having at least a light-emitting layer and constituting one pixel.
- a capsule-shaped microphone-mouth light-emitting element including a capsule-shaped sealing layer that is individually sealed, and a first electrode and a second electrode for applying a voltage to the light-emitting portion can be obtained. In the child, make sure that the anode layer is electrically connected to the external power supply.
- the anode terminal may be formed so as to be in contact with the anode layer at the time of use. Before the cylindrical laminated body on which the sealing layer is formed is cut at the exposed portion, the anode is previously formed on the cylindrical laminated body.
- the anode may be formed so as to be in contact with the layer, for example, as a method of forming the anode, for example, by vapor deposition methods such as vacuum vapor deposition and chemical vapor deposition, electric plating, non-electrolytic bonding, and electronic method.
- vapor deposition methods such as vacuum vapor deposition and chemical vapor deposition, electric plating, non-electrolytic bonding, and electronic method.
- FIG. 5 is a schematic view showing a state where the exposed portion 22 is exposed again by irradiating the cylindrical laminate 20 with the sealing layer 17 formed with a laser beam L.
- the first electrode of the force-pseudo microphone-mouth light emitting element is a cathode and the second electrode is an anode, but the first electrode may be an anode and the second electrode may be.
- the present invention it is possible to obtain a sheet-like light-emitting body that has extremely excellent flexure growth and can be easily repaired for each pixel in which a defect has occurred even if a defect occurs. And a method of efficiently making the capsule micro light-emitting device difficult.
- the capsule-like micro light-emitting device of the present invention is a light-emitting device having at least a light-emitting layer and having light-emitting portions constituting one pixel individually sealed. It is particularly useful as a material used when a body is obtained, and can be suitably used for, for example, a wall-mounted display.
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- Optics & Photonics (AREA)
- Electroluminescent Light Sources (AREA)
- Devices For Indicating Variable Information By Combining Individual Elements (AREA)
Description
Claims
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US12/303,565 US8258695B2 (en) | 2006-06-19 | 2007-06-15 | Capsular micro light-emitting device and method for manufacturing the same |
| DE112007001470T DE112007001470T5 (de) | 2006-06-19 | 2007-06-15 | Kapselförmige lichtemittierende Mikrovorrichtung und Verfahren zu ihrer Herstellung |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2006-168585 | 2006-06-19 | ||
| JP2006168585A JP5052829B2 (ja) | 2006-06-19 | 2006-06-19 | カプセル状マイクロ発光素子の製造方法 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| WO2007148771A1 true WO2007148771A1 (ja) | 2007-12-27 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/JP2007/062558 Ceased WO2007148771A1 (ja) | 2006-06-19 | 2007-06-15 | カプセル状マイクロ発光素子及びその製造方法 |
Country Status (4)
| Country | Link |
|---|---|
| US (1) | US8258695B2 (ja) |
| JP (1) | JP5052829B2 (ja) |
| DE (1) | DE112007001470T5 (ja) |
| WO (1) | WO2007148771A1 (ja) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102008048829A1 (de) * | 2008-09-25 | 2010-04-01 | Osram Opto Semiconductors Gmbh | Organisches optoelektronisches Bauteil |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8680515B2 (en) * | 2011-05-03 | 2014-03-25 | Xerox Corporation | Digital marking using a bipolar imaging member |
| US9356070B2 (en) | 2012-08-15 | 2016-05-31 | Epistar Corporation | Light-emitting device |
| US20140048824A1 (en) * | 2012-08-15 | 2014-02-20 | Epistar Corporation | Light-emitting device |
| TWI483902B (zh) * | 2013-04-03 | 2015-05-11 | 國立臺灣大學 | 製作參雜金屬離子之硫化鋅奈米粒子的方法以及應用其進行光致發暖白光的方法 |
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| US8492973B2 (en) | 2008-09-25 | 2013-07-23 | Osram Opto Semiconductors Gmbh | Organic optoelectronic component having a radiation-emitting layer containing an organic material |
Also Published As
| Publication number | Publication date |
|---|---|
| US20100171133A1 (en) | 2010-07-08 |
| US8258695B2 (en) | 2012-09-04 |
| DE112007001470T5 (de) | 2009-04-23 |
| JP5052829B2 (ja) | 2012-10-17 |
| JP2007335359A (ja) | 2007-12-27 |
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