WO2015174672A1 - 유기발광소자 및 이의 제조방법 - Google Patents
유기발광소자 및 이의 제조방법 Download PDFInfo
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- WO2015174672A1 WO2015174672A1 PCT/KR2015/004480 KR2015004480W WO2015174672A1 WO 2015174672 A1 WO2015174672 A1 WO 2015174672A1 KR 2015004480 W KR2015004480 W KR 2015004480W WO 2015174672 A1 WO2015174672 A1 WO 2015174672A1
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- Prior art keywords
- electrode
- light emitting
- organic light
- auxiliary electrode
- conductive
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Images
Classifications
-
- 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
- H10K59/12—Active-matrix OLED [AMOLED] displays
- H10K59/131—Interconnections, e.g. wiring lines or terminals
-
- 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
- H10K50/805—Electrodes
- H10K50/81—Anodes
- H10K50/813—Anodes characterised by their shape
-
- 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
- H10K50/805—Electrodes
- H10K50/81—Anodes
- H10K50/814—Anodes combined with auxiliary electrodes, e.g. ITO layer combined with metal lines
-
- 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
- H10K50/805—Electrodes
- H10K50/82—Cathodes
- H10K50/822—Cathodes characterised by their shape
-
- 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
- H10K50/805—Electrodes
- H10K50/82—Cathodes
- H10K50/824—Cathodes combined with auxiliary electrodes
-
- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
- H10K2102/00—Constructional details relating to the organic devices covered by this subclass
- H10K2102/301—Details of OLEDs
- H10K2102/341—Short-circuit prevention
Definitions
- the present specification relates to an organic light emitting device and a method of manufacturing the same.
- Organic light emitting phenomenon refers to a phenomenon that converts electrical energy into light energy using organic materials.
- an appropriate organic layer is positioned between the anode and the cathode
- holes are injected into the anode and electrons are injected into the organic layer in the cathode.
- an exciton is formed, and when the excitons fall back to the ground, light is generated.
- the organic light emitting element Since the gap between the anode and the cathode is small, the organic light emitting element is likely to have a short circuit defect. Pinholes, cracks, steps in the structure of the organic light emitting device, roughness of the coating, and the like may allow the anode and cathode to be in direct contact or the organic layer thickness may be thinner in these defect areas. These defect zones provide a low-resistance path that allows current to flow, so that little or no current flows through the organic light emitting device. As a result, the light emission output of the organic light emitting element is reduced or eliminated. In multi-pixel display devices, short-circuit defects can reduce display quality by producing dead pixels that do not emit light or emit light below average light intensity.
- the present invention aims to provide an organic light emitting device and a method of manufacturing the same, in which a short circuit does not occur even when a short circuit defect occurs in one region of the organic light emitting device.
- One embodiment of the present specification is a substrate; A first electrode provided on the substrate, the first electrode including two or more conductive units spaced apart from each other and a conductive connection connected to the conductive unit; An auxiliary electrode provided on the substrate and spaced apart from the conductive unit; An insulating layer provided on the conductive connection part or the auxiliary electrode and including at least one contact hole exposing a region of the conductive connection part or the auxiliary electrode; A second electrode provided to face the first electrode; And one or more organic material layers provided between the first electrode and the second electrode,
- the conductive connection part is electrically connected to the auxiliary electrode through the contact hole, and the conductive connection part includes at least one high resistance region having a length in a direction in which a current flows longer than a width in a vertical direction thereto.
- One embodiment of the present specification comprises the steps of preparing a substrate; Forming an auxiliary electrode on the substrate; Forming a first electrode on the substrate, the first electrode including two or more conductive units spaced apart from each other and a conductive connection connected to the conductive unit; Forming an insulating layer including one or more contact holes on the conductive connection part or the auxiliary electrode; Forming at least one organic material layer on the first electrode; And forming a second electrode on the organic material layer.
- the conductive connection part is electrically connected to the auxiliary electrode through the contact hole, and the conductive connection part includes at least one high resistance region having a length in a direction in which a current flows longer than a width in a vertical direction thereof. It provides a manufacturing method.
- An exemplary embodiment of the present specification provides a display device including the organic light emitting device.
- One embodiment of the present specification provides a lighting device including the organic light emitting device.
- the organic light emitting diode according to the exemplary embodiment of the present specification does not lose the function of the organic light emitting diode even when a short circuit occurs due to a defect in one region of the substrate.
- the organic light emitting device can be operated stably without increasing the amount of leakage current, even if the area size of the short circuit occurrence point is increased.
- FIG. 1 illustrates a plan view and a cross-sectional view in which a main configuration of an organic light emitting diode according to an exemplary embodiment of the present disclosure is disposed.
- FIG. 2 illustrates a cross-sectional view of an organic light emitting diode according to an exemplary embodiment of the present specification.
- FIG 3 illustrates one conductive unit of a first electrode of an organic light emitting diode according to an exemplary embodiment of the present specification.
- FIG. 4 illustrates one conductive unit of a first electrode of an organic light emitting diode according to an exemplary embodiment of the present specification.
- FIG 5 illustrates one example of the length and width in the high resistance region of the conductive connection of the present disclosure.
- 6 to 11 illustrate the shape of the first electrode in the organic light emitting diode according to the exemplary embodiment of the present specification.
- One embodiment of the present specification is a substrate; A first electrode provided on the substrate, the first electrode including two or more conductive units spaced apart from each other and a conductive connection connected to the conductive unit; An auxiliary electrode provided on the substrate and spaced apart from the conductive unit; An insulating layer provided on the conductive connection part or the auxiliary electrode and including at least one contact hole exposing a region of the auxiliary electrode; A second electrode provided to face the first electrode; And one or more organic material layers provided between the first electrode and the second electrode,
- the conductive connection part is electrically connected to the auxiliary electrode through the contact hole, and the conductive connection part includes at least one high resistance region having a length in a direction in which a current flows longer than a width in a vertical direction thereto.
- the spaced apart means that the conductive units are spatially separated from each other. It also means that the conductive units are not in physical contact with each other.
- the conductive unit of the present specification means a region excluding a conductive connection portion in the configuration of forming the first electrode.
- the conductive units may be regions of the first electrode provided in the emission region of the organic light emitting diode.
- FIG. 1 illustrates a plan view and a cross-sectional view in which a main configuration of an organic light emitting diode according to an exemplary embodiment of the present disclosure is disposed. Specifically, FIG. 1 illustrates an example of a configuration of a substrate, a first electrode, an auxiliary electrode, and an insulating layer.
- the dark region of FIG. 1 is a region where the first electrodes 201 and 501 are not formed and represents the insulating layer 401.
- an auxiliary electrode 301 is provided on a substrate 101, and an insulating layer 401 covers the auxiliary electrode 301.
- a portion of the insulating layer 401 may provide a passage through which a contact hole 601 may be formed to connect the auxiliary electrode 301 and the conductive connector 501.
- an insulating layer may be formed on the conductive connecting portion, and an auxiliary electrode may be provided on the insulating layer.
- the organic light emitting device may be sealed with an encapsulation layer in the configuration of FIG.
- 3 and 4 illustrate one conductive unit of the first electrode of the organic light emitting diode according to the exemplary embodiment of the present specification.
- the conductive unit 201 is formed in contact with the conductive connecting portion 501, and the conductive connecting portion 501 includes two high resistance regions 511, and the conductive connecting portion 501 includes a contact hole. It may be electrically connected to the auxiliary electrode through 601.
- the conductive unit may be included in a light emitting area of the organic light emitting device.
- the light emitting area may include each pixel area of the organic light emitting device, and at least one area of each conductive unit may be located in the light emitting area of the organic light emitting device.
- a light emitting phenomenon may occur in an organic material layer including a light emitting layer formed on a region of the conductive unit, and light may be emitted through the conductive unit.
- the emission region in the present specification means a region in which light emitted from the emission layer of the organic material layer is emitted through the first electrode and / or the second electrode.
- the light emitting region may be formed in at least a portion of the region of the first electrode in which the auxiliary electrode is not formed among the regions in which the first electrode is formed on the substrate.
- the non-light emitting area in the present specification may mean a region other than the light emitting region.
- the non-light emitting area of the organic light emitting device may mean a region where the auxiliary electrode is formed.
- the short circuit defect may occur when the second electrode of the organic light emitting diode directly contacts the first electrode. Alternatively, this may occur when the first electrode and the second electrode are in contact with each other by losing the function of the organic material layer due to thickness reduction or denaturation of the organic material layer positioned between the first electrode and the second electrode.
- a short circuit fault occurs, it is possible to provide a low path to the current of the organic light emitting device, thereby rendering the organic light emitting device unable to operate normally.
- the current of the organic light emitting diode may flow away from the defect free zone due to the leakage current in which current flows directly from the first electrode to the second electrode due to a short circuit defect.
- the organic light emitting device even if a short circuit fault occurs in any one or more of the conductive units, it is possible to prevent all the operating current from flowing to the short circuit fault site by the conductive connection. That is, since the conductive connection portion includes a high resistance region, the conductive connection portion may serve to control the amount of leakage current to increase indefinitely. Therefore, in the organic light emitting diode according to the exemplary embodiment of the present specification, even if a short circuit defect occurs in some of the conductive units, the remaining conductive unit without the short circuit defect may operate normally.
- the conductive connection portion serves to prevent current from escaping through the short-circuit defect site by adding an appropriate resistance when a short-circuit defect occurs by a high resistance region having a high resistance value.
- the resistance value of the high resistance region may be determined in consideration of the control of the leakage current due to the short circuit defect and the driving voltage increase caused by the high resistance region in the absence of the short circuit defect.
- the conductive units may be electrically connected in parallel with each other.
- the conductive connecting portion may electrically connect the auxiliary electrode and the conductive unit.
- the conductive connection may be to physically connect the conductive units with each other.
- the organic light emitting diode may flow a current from the auxiliary electrode to the conductive unit through the conductive connection including the high resistance region. More specifically, when the voltage is applied to the organic light emitting device through an external power source, the current flow of any one of the conductive units may be in the direction of the auxiliary electrode ⁇ conductive connection ⁇ conductive unit ⁇ organic layer ⁇ second electrode or the reverse thereof. .
- Each of the conductive units of the present specification are spaced apart from each other, and each of the conductive units may receive current from an auxiliary electrode through the conductive connection. This is because when a short circuit occurs in one of the conductive units, a current that must flow to another conductive unit that does not have a short circuit flows to the conductive unit where the short circuit occurs, thereby preventing the entire organic light emitting device from operating.
- the one or more conductive units may be included in one pixel of the organic light emitting diode.
- the conductive unit may serve as a transparent electrode of each pixel.
- the conductive connection may include one or more high resistance regions.
- each of the conductive connection portions may have two or more high resistance regions, disconnection occurs in any one of the high resistance regions of the conductive connection portions connected to each conductive unit. Even if there is an advantage that the conductive unit can operate normally by the remaining high resistance region.
- each of the conductive units may be electrically connected to the auxiliary electrode by a high resistance region having the lowest resistance value among two or more high resistance regions in which disconnection does not occur.
- the conductive connection portion may be provided on the non-light emitting area provided with the auxiliary electrode.
- the high resistance region may be provided on the non-light emitting region provided with the auxiliary electrode. Therefore, on the plan view of the organic light emitting diode, the high resistance region is positioned on the region where the auxiliary electrode is formed, thereby minimizing the reduction of the aperture ratio caused by the high resistance region.
- the conductive connection portion of the present specification may be an end portion of the conductive unit, and the shape or position thereof is not particularly limited.
- the conductive connecting portion may have a shape protruding from one vertex, one corner or one middle portion of the polygonal conductive unit including a quadrangle.
- the conductive connection portion may include a high resistance region in which a length of a current flow direction is longer than a width in a vertical direction thereto.
- the high resistance region may include an area having a ratio of the length and the width of 10: 1 or more.
- the conductive connection of the present specification may have a relatively high resistance compared to the conductive unit. Further, the conductive connection of the present specification may perform a short circuit prevention function in the organic light emitting device. That is, when the short circuit defect of the organic light emitting device occurs, the conductive connection part of the present specification serves to enable the operation of the device despite the short circuit defect.
- the material of the conductive connection may be the same as the material of the conductive unit.
- the conductive connecting portion and the conductive unit are included in the first electrode, and may be formed of the same material.
- the length and width of the present specification is a relative concept, the length may mean a spatial distance from one end to the other end of the conductive connection when viewed from the top. That is, even if the conductive connecting portion is a combination of straight lines or includes a curve, it may mean a value measured by assuming a straight line.
- the width in the present specification may mean a distance from the center in the longitudinal direction of the conductive connection portion to both ends in the vertical direction when viewed from the top.
- One example of the length and width is shown in FIG. 5.
- the length of the present specification may mean a dimension of a direction in which a current flows.
- the width of the present specification may mean a dimension in the direction perpendicular to the current flow.
- the length of the present specification may mean a distance that a current from the auxiliary electrode to the conductive unit is moved, the width may mean a distance perpendicular to the longitudinal direction.
- the length may be the sum of a and b, and the width may be c.
- the conductive connection may be in physical contact with the auxiliary electrode through the contact hole.
- the contact hole 601 region is filled with the conductive connecting portion 501 to be in contact with the auxiliary electrode and the conductive connecting portion 501 at the bottom.
- the insulating layer may insulate a surface except for a surface where the auxiliary electrode or the first electrode contacts the substrate and a region where the auxiliary electrode or the first electrode contacts the contact hole.
- the insulating layer covers the exposed surface of the conductive connection part or the auxiliary electrode provided on the substrate, and removes at least one region of the insulating layer to remove the conductive connection part and the auxiliary electrode. It may have a contact hole exposed to the outside.
- the contact hole may be a path through which the conductive connection part and the auxiliary electrode can be electrically connected.
- the contact hole may be a region that allows the auxiliary electrode to be physically connected to the first electrode.
- the contact hole of the present specification may be a means for preventing the reduction of the aperture ratio of the organic light emitting device by the conductive connection, the contact hole may be provided on the upper or lower surface of the auxiliary electrode. In detail, the contact hole may be located in a non-light emitting area where the auxiliary electrode is formed. Furthermore, in order to prevent the opening ratio of the organic light emitting diode from decreasing due to the contact hole, the maximum diameter of the contact hole may not exceed the line width of the auxiliary electrode.
- the organic light emitting diode may further include an additional insulating layer for insulating the conductive connection portion and the organic material layer.
- an additional insulating layer may be provided on the first electrode and / or the auxiliary electrode except for the region in which the conductive unit is provided. This is to insulate the conductive layer and the organic material layer provided on the first electrode and / or the auxiliary electrode.
- the insulating layer and the additional insulating layer may be an organic insulating layer or an inorganic insulating layer, respectively.
- the material of the insulating layer and the additional insulating layer can be used without limitation as long as it is generally used in the art.
- the resistance from the auxiliary electrode to the conductive unit may be 1 kW or more and 1 kW or less.
- the other conductive unit adjacent to any one of the conductive units may mean another conductive unit that is physically closest to any one of the conductive units.
- the first electrode may include 1,000 or more of the conductive units spaced apart from each other. Specifically, the first electrode may include 1,000 or more than 1,000,000 conductive units spaced apart from each other.
- the first electrode may be formed in a pattern of two or more conductive units.
- the conductive unit may be formed in a pattern in which regions other than the conductive connection parts are spaced apart from each other.
- the pattern of the present specification may have the form of a closed figure.
- the pattern may be a polygon such as a triangle, a square, a hexagon, or the like, or may be in an amorphous form.
- FIGS. 6 and 7 illustrate a case in which the conductive unit 201 forms a triangular pattern.
- 8 and 9 illustrate a case in which the conductive unit 201 forms a square pattern.
- 10 and 11 illustrate a case in which the conductive unit 201 forms a hexagonal pattern.
- the circle or oval means that the contact hole 601 is provided, and the arrow indicates the conductive connection part 501, and the direction of the arrow is through the conductive connection part 501. The direction in which current flows to the conductive unit 201 is illustrated.
- the shape of the first electrode of the organic light emitting diode is not limited only to FIGS. 6 to 11, but may be provided in various shapes.
- the number of contact holes and the arrangement of the conductive connection portions of the organic light emitting diode is not limited only to FIGS. 6 to 11, but may be provided in various shapes.
- the organic light emitting diode may have an effect of minimizing the amount of leakage current when a short circuit occurs while minimizing a voltage increase in normal operation.
- the aperture ratio may be maintained, and the above effects may be maintained. That is, when the number of the conductive units exceeds 1,000,000, the opening ratio may decrease due to the increase in the number of auxiliary electrodes.
- the area occupied by the conductive units in the organic light emitting diode may be 50% or more and 90% or less based on the plan view of the entire organic light emitting diode.
- the conductive unit is included in the light emitting region, and the area occupied by the conductive units may be the same as or similar to the aperture ratio of the organic light emitting diode, based on the surface of the organic light emitting diode emitting light.
- the first electrode of the present specification since each conductive unit is electrically connected by the conductive connection part, the driving voltage of the device is increased. Therefore, according to one embodiment of the present specification, in order to compensate for the increase in the driving voltage caused by the conductive connection, the first electrode includes 1,000 or more of the conductive units to lower the driving voltage of the device and at the same time by the conductive connection. It can be made to have a short circuit protection function.
- the area of each conductive unit may be 0.01 mm 2 or more and 25 mm 2 or less.
- the conductive connection part and the organic material layer including the conductive unit and the light emitting layer may be electrically connected in series.
- the light emitting layer of the present specification is positioned between the first electrode and the second electrode, two or more light emitting layers may be electrically connected in parallel.
- the light emitting layer is positioned between the conductive unit and the second electrode, and each of the light emitting layers may be electrically connected in parallel with each other. That is, the light emitting layer of the present specification may be located corresponding to the region corresponding to the conductive unit.
- the resistance value increases as the area of the light emitting layer becomes smaller.
- the area of each conductive unit is small and the number is increased, the area of each light emitting layer is also reduced.
- the ratio of the voltage of the conductive connection portion connected in series to the organic material layer is reduced compared to the voltage applied to the organic material layer including the light emitting layer during the operation of the organic light emitting device.
- the leakage current amount may be determined by the resistance value and the operating voltage from the auxiliary electrode to the conductive unit irrespective of the number of the conductive units. Therefore, by increasing the number of the conductive units, it is possible to minimize the voltage rise due to the conductive connection part in the normal operation, and at the same time, the amount of leakage current in the event of a short circuit can be minimized.
- the sheet resistance of the auxiliary electrode may be 3 ⁇ / ⁇ or less. Specifically, the sheet resistance may be 1 ⁇ / ⁇ or less.
- the auxiliary electrode can be used.
- the sheet resistance of the auxiliary electrode of the present specification may be 3 ⁇ / ⁇ or less, specifically 1 ⁇ / ⁇ or less, and the luminance uniformity of the organic light emitting diode may be maintained in the above range.
- the first electrode may be formed as a transparent electrode.
- the sheet resistance of the first electrode may be higher than the sheet resistance value required for driving the organic light emitting diode. Therefore, in order to lower the sheet resistance value of the first electrode, the auxiliary electrode may be electrically connected to the first electrode to lower the sheet resistance of the first electrode to the sheet resistance level of the auxiliary electrode.
- the auxiliary electrode may be formed of conductive lines electrically connected to each other.
- the conductive line may be made of a conductive pattern.
- the entire auxiliary electrode may be driven by applying a voltage to at least one portion of the auxiliary electrode of the present specification.
- the organic light emitting device may be included in the OLED lighting.
- the voltage formed between the first electrode and the second electrode of all the organic light emitting diodes included in the OLED lighting is kept the same.
- the second electrode of each organic light emitting diode when the first electrode is a transparent electrode and the second electrode is a metal electrode, the second electrode of each organic light emitting diode has a low sheet resistance and thus each organic light emitting diode Although there is almost no voltage difference between the second electrodes of, the voltage difference of each organic light emitting diode may exist in the case of the first electrode.
- the auxiliary electrode specifically, the metal auxiliary electrode, may be used to compensate for the voltage difference between the first electrodes of the organic light emitting diodes.
- the metal auxiliary electrode may be formed of conductive lines electrically connected to each other. Specifically, the auxiliary electrode may form a conductive line so that the first electrode voltage difference of each organic light emitting diode is almost eliminated.
- the sheet resistance of the conductive unit may be 1 ⁇ / ⁇ or more, or 3 ⁇ / ⁇ or more, specifically, 10 ⁇ / ⁇ or more.
- the sheet resistance of the conductive unit may be 1,000 ⁇ / ⁇ or less, or 500 ⁇ / ⁇ or less. That is, according to the exemplary embodiment of the present specification, the sheet resistance of the conductive unit may be 1 ⁇ / ⁇ or more and 1,000 ⁇ / ⁇ or less, or 10 ⁇ / ⁇ or more and 500 ⁇ / ⁇ or less.
- the sheet resistance level required for the conductive unit may be controlled to be inversely proportional to the area of the conductive unit corresponding to the light emitting area. For example, when the conductive unit has a light emitting area of 100 cm 2, the sheet resistance required for the conductive unit may be about 1 kW / square. Further, when the area of each of the conductive units is made small, the sheet resistance required of the conductive unit may be 1 kW / square or more.
- an auxiliary electrode may be used to satisfy the sheet resistance of the conductive unit to be 1 kW / square or more.
- the auxiliary electrode may be a metal auxiliary electrode.
- the sheet resistance of the conductive unit of the present specification may be determined by the material forming the conductive unit, and may also be electrically connected to the auxiliary electrode to lower the sheet resistance level of the auxiliary electrode. Therefore, the sheet resistance value of the conductive unit required in the organic light emitting device of the present specification can be adjusted by the material of the auxiliary electrode and the conductive unit.
- the auxiliary electrode may be formed in a stripe structure or a mesh structure.
- the conductive unit may be provided in an empty space of the mesh.
- the line width of the auxiliary electrode may be 1 ⁇ m or more and 100 ⁇ m or less.
- the line width of the auxiliary electrode may mean a head thickness of the auxiliary electrode based on a parallel cross section of the substrate surface on which the auxiliary electrode is provided.
- the line width of the auxiliary electrode may refer to the thickest head thickness of the auxiliary electrode based on a parallel cross section of the substrate surface on which the auxiliary electrode is provided.
- the aperture ratio is secured can increase the efficiency of the organic light emitting device.
- the auxiliary electrode may be provided in a mesh structure surrounding one or more of the conductive units.
- the auxiliary electrode may be provided in a network structure forming a repeating pattern portion of a triangle, a square or a hexagon.
- the mesh structure may form an opening region of a repeating shape such as triangle, square or hexagon.
- the pattern portion may mean a repeated closed region formed by the auxiliary electrode.
- the opening ratio of the auxiliary electrode may be 60% or more.
- the aperture ratio of the auxiliary electrode may be 70%, or 80% or more.
- the aperture ratio of the organic light emitting device may be 60% or more based on the light emitting surface.
- the line width of the high resistance region may be 0.5 ⁇ m or more and 100 ⁇ m or less.
- the organic orphaned element may be positioned on the region having the auxiliary electrode in order to secure the aperture ratio. Therefore, the high resistance region may be equal to or smaller than the line width of the auxiliary electrode.
- the first electrode may be a transparent electrode.
- the first electrode When the first electrode is a transparent electrode, the first electrode may be a conductive oxide such as tin indium oxide (ITO) or zinc indium oxide (IZO). Furthermore, the first electrode may be a translucent electrode. When the first electrode is a translucent electrode, it may be made of a translucent metal such as Ag, Au, Mg, Ca or an alloy thereof. When the translucent metal is used as the first electrode, the organic light emitting device may have a microcavity structure.
- ITO tin indium oxide
- IZO zinc indium oxide
- the first electrode may be a translucent electrode.
- the first electrode When the first electrode is a translucent electrode, it may be made of a translucent metal such as Ag, Au, Mg, Ca or an alloy thereof.
- the translucent metal When the translucent metal is used as the first electrode, the organic light emitting device may have a microcavity structure.
- the auxiliary electrode may be made of a metal material. That is, the auxiliary electrode may be a metal electrode.
- the auxiliary electrode may generally use all metals. Specifically, it may include aluminum, copper, and / or silver having good conductivity.
- the auxiliary electrode may use a molybdenum / aluminum / molybdenum layer when aluminum is used for adhesion to the transparent electrode and stability in a photo process.
- the organic material layer includes at least one light emitting layer, a hole injection layer; Hole transport layer; Hole blocking layer; A charge generating layer; Electron blocking layer; Electron transport layer; And it may further comprise one or two or more selected from the group consisting of an electron injection layer.
- the charge generating layer is a layer in which holes and electrons are generated when a voltage is applied.
- the substrate may be a substrate excellent in transparency, surface smoothness, ease of handling and waterproof.
- a glass substrate, a thin film glass substrate, or a transparent plastic substrate may be used.
- the plastic substrate may include a film such as polyethylene terephthalate (PET), polyethylene naphthalate (PEN), polyether ether ketone (PEEK), and polyimide (PI) in the form of a single layer or a multilayer.
- PET polyethylene terephthalate
- PEN polyethylene naphthalate
- PEEK polyether ether ketone
- PI polyimide
- the substrate may be a light scattering function is included in the substrate itself.
- the substrate is not limited thereto, and a substrate commonly used in an organic light emitting device may be used.
- the first electrode may be an anode, and the second electrode may be a cathode.
- the first electrode may be a cathode, and the second electrode may be an anode.
- anode a material having a large work function is usually preferred to facilitate hole injection into the organic material layer.
- anode materials that can be used in the present invention include metals such as vanadium, chromium, copper, zinc, gold or alloys thereof; Metal oxides such as zinc oxide, indium oxide, indium tin oxide (ITO), indium zinc oxide (IZO); Combinations of metals and oxides such as ZnO: Al or SnO 2 : Sb; Conductive polymers such as poly (3-methylthiophene), poly [3,4- (ethylene-1,2-dioxy) thiophene] (PEDOT), polypyrrole and polyaniline, and the like, but are not limited thereto.
- the anode material is not limited to the anode, but may be used as the material of the cathode.
- the cathode is preferably a material having a small work function to facilitate electron injection into the organic material layer.
- the cathode materials include metals such as magnesium, calcium, sodium, potassium, titanium, indium, yttrium, lithium, gadolinium, aluminum, silver, tin and lead or alloys thereof; Multilayer structure materials such as LiF / Al or LiO 2 / Al, and the like, but are not limited thereto.
- the material of the cathode is not limited to the cathode, but may be used as the material of the anode.
- a material capable of transporting holes from an anode or a hole injection layer to be transferred to a light emitting layer is suitable.
- Specific examples thereof include an arylamine-based organic material, a conductive polymer, and a block copolymer having a conjugated portion and a non-conjugated portion together, but are not limited thereto.
- the light emitting layer material is a material capable of emitting light in the visible region by transporting and combining holes and electrons from the hole transport layer and the electron transport layer, respectively, and a material having good quantum efficiency with respect to fluorescence or phosphorescence is preferable.
- Specific examples include 8-hydroxy-quinoline aluminum complex (Alq 3 ); Carbazole series compounds; Dimerized styryl compounds; BAlq; 10-hydroxybenzoquinoline-metal compound; Benzoxazole, benzthiazole and benzimidazole series compounds; Poly (p-phenylenevinylene) (PPV) -based polymers; Spiro compounds; Polyfluorene; Rubrene and the like, but are not limited thereto.
- the electron transport layer material As the electron transport layer material according to the present specification, a material capable of injecting electrons well from a cathode and transferring the electrons to a light emitting layer is suitable. Specific examples include Al complexes of 8-hydroxyquinoline; Complexes including Alq 3 ; Organic radical compounds; Hydroxyflavone-metal complexes and the like, but are not limited thereto.
- the auxiliary electrode may be located in the non-light emitting area of the organic light emitting device.
- the organic light emitting device may be sealed with an encapsulation layer.
- the encapsulation layer may be formed of a transparent resin layer.
- the encapsulation layer serves to protect the organic light emitting device from oxygen and contaminants, and may be a transparent material so as not to inhibit light emission of the organic light emitting device.
- the transparency may mean transmitting more than 60% of light. Specifically, it may mean that the light transmits 75% or more.
- the organic light emitting diode may emit white light having a color temperature of 2,000 K or more and 12,000 K or less.
- the light scattering layer provided between the substrate and the first electrode may be further included.
- the light scattering layer may include a flat layer.
- the flat layer may be provided between the first electrode and the light scattering layer.
- a light scattering layer may be further included on a surface of the substrate opposite to the surface on which the first electrode is provided.
- the light scattering layer is not particularly limited as long as it induces light scattering and improves the light scattering efficiency of the organic light emitting device.
- the light scattering layer may be a structure in which scattering particles are dispersed in a binder, a film having irregularities, and / or a film having hazeness.
- the light scattering layer may be directly formed on the substrate by a method such as spin coating, bar coating, slit coating, or the like, and may be formed by attaching the film.
- the organic light emitting device may be a flexible organic light emitting device.
- the substrate may comprise a flexible material.
- the substrate may be a glass, plastic substrate, or film substrate in the form of a thin film that can be bent.
- the material of the plastic substrate is not particularly limited, but in general, may include a film such as polyethylene terephthalate (PET), polyethylene naphthalate (PEN), polyether ether ketone (PEEK) and polyimide (PI) in the form of a single layer or a multilayer. have.
- PET polyethylene terephthalate
- PEN polyethylene naphthalate
- PEEK polyether ether ketone
- PI polyimide
- the present specification provides a display device including the organic light emitting diode.
- the organic light emitting diode may serve as a pixel or a backlight.
- the configuration of the display device may be applied to those known in the art.
- the present specification provides a lighting device including the organic light emitting device.
- the organic light emitting diode serves as a light emitting unit.
- the configurations required for the lighting device may be applied to those known in the art.
- One embodiment of the present specification comprises the steps of preparing a substrate; Forming an auxiliary electrode on the substrate; Forming a first electrode on the substrate, the first electrode including two or more conductive units spaced apart from each other and a conductive connection connected to the conductive unit; Forming an insulating layer including one or more contact holes on the conductive connection part or the auxiliary electrode; Forming at least one organic material layer on the first electrode; And forming a second electrode on the organic material layer.
- the conductive connection part is electrically connected to the auxiliary electrode through the contact hole, and the conductive connection part includes at least one high resistance region having a length in a direction in which a current flows longer than a width in a vertical direction thereof. It provides a manufacturing method.
- the forming of the auxiliary electrode may include photoetching; deposition; Or printing.
- the forming of the auxiliary electrode may use a method for forming the auxiliary electrode into a stripe structure or a mesh structure.
- the photoetching, vapor deposition, and printing may be applied without any limitation as long as it is a method generally used in the art.
- the forming of the insulating layer is to form the contact hole by removing an area of the insulating layer after forming the insulating layer to cover the conductive connection part or the auxiliary electrode. Can be.
- the forming of the first electrode may be to form a first electrode material layer on the substrate and to pattern the first electrode.
- a first electrode material layer may be formed on the substrate, and the first electrode material layer may be formed as the first electrode through photoetching or laser etching.
- an insulating layer may be formed on the conductive connecting portion, and an auxiliary electrode may be formed on the insulating layer.
- the forming of the first electrode may include forming a first electrode material layer on the substrate on which the auxiliary electrode and the insulating layer are formed after forming the insulating layer, and forming the first electrode. Patterning with electrodes may be performed.
- the forming of the first electrode may include forming a first electrode material layer using a deposition process after forming an insulating layer, and forming the first electrode material layer through photoetching or laser etching. It can be formed as a first electrode.
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Abstract
Description
Claims (22)
- 기판;상기 기판 상에 구비되고, 서로 이격되어 구비된 2 이상의 전도성 유닛 및 상기 전도성 유닛에 연결된 전도성 연결부를 포함하는 제1 전극;상기 기판 상에 구비되고, 상기 전도성 유닛과 이격 배치된 보조 전극;상기 전도성 연결부 또는 상기 보조 전극 상에 구비되고, 상기 전도성 연결부 또는 상기 보조 전극의 일 영역을 노출시키는 컨택홀을 1 이상 포함하는 절연층;상기 제1 전극에 대향하여 구비된 제2 전극; 및상기 제1 전극 및 상기 제2 전극 사이에 구비된 1층 이상의 유기물층을 포함하고,상기 전도성 연결부는 상기 컨택홀을 통하여 상기 보조 전극과 전기적으로 연결되며,상기 전도성 연결부는 전류가 흐르는 방향의 길이가 이에 수직 방향의 폭보다 더 긴 고저항 영역을 1 이상 포함하는 것인 유기발광소자.
- 청구항 1에 있어서,상기 전도성 연결부의 적어도 일부는 상기 보조 전극이 구비된 비발광 영역 상에 구비된 것인 유기발광소자.
- 청구항 1에 있어서,상기 고저항 영역은 상기 길이와 상기 폭의 비가 10:1 이상인 영역을 포함하는 것인 유기발광소자.
- 청구항 1에 있어서,상기 전도성 연결부는 상기 보조 전극과 상기 전도성 유닛을 전기적으로 연결하는 것인 유기발광소자.
- 청구항 1에 있어서,상기 전도성 연결부는 상기 컨택홀을 통하여 상기 보조 전극과 물리적으로 접하는 것인 유기발광소자.
- 청구항 1에 있어서,상기 절연층은 상기 보조 전극 또는 상기 제1 전극이 기판과 접하는 면, 및 상기 보조 전극 또는 상기 제1 전극이 컨택홀과 접하는 영역을 제외한 표면을 절연하는 것인 유기발광소자.
- 청구항 1에 있어서,상기 전도성 연결부와 상기 유기물층을 절연하는 추가의 절연층을 더 구비하는 것인 유기발광소자.
- 청구항 1에 있어서,상기 보조 전극으로부터 상기 전도성 유닛까지의 저항은 1 ㏀ 이상 1 ㏁ 이하인 것인 유기발광소자.
- 청구항 1에 있어서,상기 각각의 전도성 유닛의 면적은 0.01 ㎜2 이상 25 ㎜2 이하인 것인 유기발광소자.
- 청구항 1에 있어서,상기 보조 전극은 1 이상의 상기 전도성 유닛을 둘러싸는 그물망 구조로 구비되는 것인 유기발광소자.
- 청구항 11에 있어서,상기 보조 전극은 삼각형, 사각형 또는 육각형의 반복되는 패턴부를 형성하는 그물망 구조로 구비되는 것인 유기발광소자.
- 청구항 1에 있어서,상기 보조 전극의 선폭은 1 ㎛ 이상 100 ㎛ 이하인 것인 유기발광소자.
- 청구항 1에 있어서,상기 고저항 영역의 선폭은 0.5 ㎛ 이상 100 ㎛ 이하인 것인 유기발광소자.
- 청구항 1에 있어서,상기 전도성 유닛의 면저항은 1 Ω/□ 이상 1,000 Ω/□ 이하인 것인 유기발광소자.
- 청구항 1에 있어서,상기 보조 전극의 면저항은 3 Ω/□ 이하인 것인 유기발광소자.
- 청구항 1에 있어서,상기 유기발광소자는 플랙시블(flexible) 유기발광소자인 것인 유기발광소자.
- 청구항 1 내지 16 중 어느 한 항에 따른 유기발광소자를 포함하는 디스플레이 장치.
- 청구항 1 내지 16 중 어느 한 항에 따른 유기발광소자를 포함하는 조명 장치.
- 기판을 준비하는 단계;상기 기판 상에 보조 전극을 형성하는 단계;상기 기판 상에 서로 이격되어 구비된 2 이상의 전도성 유닛 및 상기 전도성 유닛에 연결된 전도성 연결부를 포함하는 제1 전극을 형성하는 단계;상기 전도성 연결부 또는 상기 보조 전극 상에 1 이상의 컨택홀을 포함하는 절연층을 형성하는 단계;상기 제1 전극 상에 1층 이상의 유기물층을 형성하는 단계; 및상기 유기물층 상에 제2 전극을 형성하는 단계를 포함하고,상기 전도성 연결부는 상기 컨택홀을 통하여 상기 보조 전극과 전기적으로 연결되며,상기 전도성 연결부는 전류가 흐르는 방향의 길이가 이에 수직 방향의 폭보다 더 긴 고저항 영역을 1 이상 포함하는청구항 1 내지 16 중 어느 한 항의 유기발광소자의 제조방법.
- 청구항 19에 있어서,상기 절연층을 형성하는 단계는 상기 전도성 연결부 또는 상기 보조 전극을 덮도록 절연층을 형성한 후, 상기 절연층의 일 영역을 제거하여 상기 컨택홀을 형성하는 것인 유기발광소자의 제조방법.
- 청구항 19에 있어서,상기 제1 전극을 형성하는 단계는, 상기 기판 상에 제1 전극 물질층을 형성하고, 상기 제1 전극으로 패터닝하는 것인 유기발광소자의 제조방법.
- 청구항 19에 있어서,상기 제1 전극을 형성하는 단계는, 상기 절연층을 형성하는 단계 이후 상기 보조 전극 및 절연층이 형성된 기판 상에 제1 전극 물질층을 형성하고, 상기 제1 전극으로 패터닝하는 것인 유기발광소자의 제조방법.
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Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN109148509A (zh) * | 2017-06-27 | 2019-01-04 | 固安翌光科技有限公司 | 一种有机电致发光器件 |
US11133484B2 (en) * | 2017-11-28 | 2021-09-28 | Lg Display Co., Ltd. | OLED lighting apparatus |
Families Citing this family (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN109065750B (zh) * | 2018-07-25 | 2020-04-21 | 固安翌光科技有限公司 | 一种有机电致发光器件及其加工方法 |
CN109449179A (zh) * | 2018-10-22 | 2019-03-08 | 固安翌光科技有限公司 | 一种无源有机电致发光器件 |
CN111244299A (zh) * | 2018-11-29 | 2020-06-05 | 机光科技股份有限公司 | 去定位器及使用该去定位器的发光装置 |
TWI677123B (zh) * | 2018-11-29 | 2019-11-11 | 機光科技股份有限公司 | 去定位器及使用該去定位器的發光裝置 |
KR20200078831A (ko) * | 2018-12-24 | 2020-07-02 | 엘지디스플레이 주식회사 | 전계 발광 조명장치 |
KR102544067B1 (ko) * | 2018-12-31 | 2023-06-16 | 엘지디스플레이 주식회사 | 유기 조명 장치 |
KR102427008B1 (ko) | 2019-12-02 | 2022-08-01 | 도레이 카부시키가이샤 | 감광성 조성물, 네거티브형 감광성 조성물, 화소 분할층 및 유기 el 표시 장치 |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6278136B1 (en) * | 1997-04-22 | 2001-08-21 | Kabushiki Kaisha Toshiba | Semiconductor light emitting element, its manufacturing method and light emitting device |
KR20040067964A (ko) * | 2003-01-21 | 2004-07-30 | 산요덴키가부시키가이샤 | El 표시 장치의 레이저 보수 방법 |
KR20060097595A (ko) * | 2005-03-11 | 2006-09-14 | 세이코 엡슨 가부시키가이샤 | 유기 el 장치 및 전자 기기 |
KR20110102373A (ko) * | 2008-11-25 | 2011-09-16 | 코닌클리즈케 필립스 일렉트로닉스 엔.브이. | 유기 발광 다이오드에서의 단락 방지 |
JP2014053120A (ja) * | 2012-09-06 | 2014-03-20 | Seiko Epson Corp | 有機el装置の製造方法、有機el装置、電子機器 |
Family Cites Families (25)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
TW364275B (en) * | 1996-03-12 | 1999-07-11 | Idemitsu Kosan Co | Organic electroluminescent element and organic electroluminescent display device |
US6713955B1 (en) * | 1998-11-20 | 2004-03-30 | Agilent Technologies, Inc. | Organic light emitting device having a current self-limiting structure |
CN1248547C (zh) * | 1999-04-02 | 2006-03-29 | 出光兴产株式会社 | 有机电致发光显示装置及其制造方法 |
JP3878365B2 (ja) * | 1999-09-09 | 2007-02-07 | 株式会社日立製作所 | 画像表示装置および画像表示装置の製造方法 |
JP2001196191A (ja) * | 2000-01-14 | 2001-07-19 | Fuji Electric Co Ltd | 有機薄膜発光ディスプレイおよびその製造方法 |
US20030000669A1 (en) * | 2001-05-11 | 2003-01-02 | Invensys Systems, Inc. | Methods and systems for controlling paper quality by adjusting fiber filter parameters |
US6664730B2 (en) * | 2001-07-09 | 2003-12-16 | Universal Display Corporation | Electrode structure of el device |
TWI223569B (en) | 2002-03-20 | 2004-11-01 | Sanyo Electric Co | Method for reducing light quantity of organic EL panel and organic EL panel |
KR100711161B1 (ko) * | 2002-09-12 | 2007-04-24 | 도시바 마쯔시따 디스플레이 테크놀로지 컴퍼니, 리미티드 | 유기 el 디스플레이 |
US7183707B2 (en) | 2004-04-12 | 2007-02-27 | Eastman Kodak Company | OLED device with short reduction |
US7586171B2 (en) * | 2004-04-14 | 2009-09-08 | Yong Cao | Organic electronic device comprising conductive members and processes for forming and using the organic electronic device |
DE102008013031B4 (de) * | 2008-03-07 | 2019-07-25 | Osram Oled Gmbh | Optoelektronisches Bauelement |
DE102009001573B3 (de) * | 2009-03-16 | 2010-08-05 | Tyco Electronics Amp Gmbh | Elektrisch leitendes Federelement, Kontaktelement und Steckverbinder |
KR101254748B1 (ko) | 2009-05-06 | 2013-04-15 | 엘지디스플레이 주식회사 | 유기전계발광표시장치 및 이의 제조방법 |
US20110193066A1 (en) | 2009-08-13 | 2011-08-11 | E. I. Du Pont De Nemours And Company | Current limiting element for pixels in electronic devices |
KR101113451B1 (ko) | 2009-12-01 | 2012-02-29 | 삼성모바일디스플레이주식회사 | 유기 전계발광 표시장치 |
TWI425858B (zh) * | 2010-08-13 | 2014-02-01 | Au Optronics Corp | 有機發光裝置、照明裝置以及液晶顯示器 |
JP5707928B2 (ja) | 2010-12-21 | 2015-04-30 | セイコーエプソン株式会社 | 照明装置、その製造方法、及び電子機器 |
US8552440B2 (en) | 2010-12-24 | 2013-10-08 | Semiconductor Energy Laboratory Co., Ltd. | Lighting device |
JP6057143B2 (ja) | 2012-03-19 | 2017-01-11 | 株式会社Joled | 有機エレクトロルミネッセンス素子 |
KR101582719B1 (ko) * | 2012-05-31 | 2016-01-05 | 주식회사 엘지화학 | 유기 발광 소자 및 이의 제조방법 |
KR101965256B1 (ko) | 2012-10-17 | 2019-04-04 | 삼성디스플레이 주식회사 | 유기 발광 표시 장치 |
WO2014140672A1 (en) * | 2013-03-15 | 2014-09-18 | L'air Liquide, Societe Anonyme Pour I'etude Et I'exploitation Des Procedes Georges Claude | Bis(alkylimido)-bis(alkylamido)molybdenum molecules for deposition of molybdenum-containing films |
CN105164829B (zh) * | 2013-04-29 | 2016-10-05 | 乐金显示有限公司 | 有机发光器件及其制造方法 |
JP6469089B2 (ja) | 2013-05-16 | 2019-02-13 | エルジー ディスプレイ カンパニー リミテッド | 有機発光素子およびその製造方法 |
-
2014
- 2014-05-12 KR KR1020140056776A patent/KR102101644B1/ko active IP Right Grant
-
2015
- 2015-05-04 WO PCT/KR2015/004480 patent/WO2015174672A1/ko active Application Filing
- 2015-05-04 CN CN201580026358.4A patent/CN106463645B/zh active Active
- 2015-05-04 JP JP2016567623A patent/JP6559708B2/ja active Active
- 2015-05-04 EP EP15793385.4A patent/EP3144995B1/en active Active
- 2015-05-04 US US15/310,699 patent/US10325975B2/en active Active
- 2015-05-08 TW TW104114645A patent/TWI590508B/zh active
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6278136B1 (en) * | 1997-04-22 | 2001-08-21 | Kabushiki Kaisha Toshiba | Semiconductor light emitting element, its manufacturing method and light emitting device |
KR20040067964A (ko) * | 2003-01-21 | 2004-07-30 | 산요덴키가부시키가이샤 | El 표시 장치의 레이저 보수 방법 |
KR20060097595A (ko) * | 2005-03-11 | 2006-09-14 | 세이코 엡슨 가부시키가이샤 | 유기 el 장치 및 전자 기기 |
KR20110102373A (ko) * | 2008-11-25 | 2011-09-16 | 코닌클리즈케 필립스 일렉트로닉스 엔.브이. | 유기 발광 다이오드에서의 단락 방지 |
JP2014053120A (ja) * | 2012-09-06 | 2014-03-20 | Seiko Epson Corp | 有機el装置の製造方法、有機el装置、電子機器 |
Non-Patent Citations (1)
Title |
---|
See also references of EP3144995A4 * |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN109148509A (zh) * | 2017-06-27 | 2019-01-04 | 固安翌光科技有限公司 | 一种有机电致发光器件 |
CN109148509B (zh) * | 2017-06-27 | 2020-09-22 | 固安翌光科技有限公司 | 一种有机电致发光器件 |
US11133484B2 (en) * | 2017-11-28 | 2021-09-28 | Lg Display Co., Ltd. | OLED lighting apparatus |
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KR102101644B1 (ko) | 2020-04-17 |
TW201607096A (zh) | 2016-02-16 |
CN106463645B (zh) | 2020-09-18 |
KR20150129564A (ko) | 2015-11-20 |
US20170077210A1 (en) | 2017-03-16 |
JP6559708B2 (ja) | 2019-08-14 |
JP2017516271A (ja) | 2017-06-15 |
EP3144995A4 (en) | 2017-11-01 |
EP3144995A1 (en) | 2017-03-22 |
US10325975B2 (en) | 2019-06-18 |
TWI590508B (zh) | 2017-07-01 |
EP3144995B1 (en) | 2021-09-08 |
CN106463645A (zh) | 2017-02-22 |
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