WO2024253404A1 - 유기발광 표시장치 및 그 제조방법 - Google Patents
유기발광 표시장치 및 그 제조방법 Download PDFInfo
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- WO2024253404A1 WO2024253404A1 PCT/KR2024/007617 KR2024007617W WO2024253404A1 WO 2024253404 A1 WO2024253404 A1 WO 2024253404A1 KR 2024007617 W KR2024007617 W KR 2024007617W WO 2024253404 A1 WO2024253404 A1 WO 2024253404A1
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- 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
- H10K59/805—Electrodes
- H10K59/8052—Cathodes
- H10K59/80522—Cathodes combined with auxiliary electrodes
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- 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
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- 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
- H10K59/1201—Manufacture or treatment
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- 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
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- 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
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- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
- H10K71/00—Manufacture or treatment specially adapted for the organic devices covered by this subclass
- H10K71/60—Forming conductive regions or layers, e.g. electrodes
Definitions
- the present invention relates to an organic light-emitting display device and a method for manufacturing the same.
- thin film transistors can be manufactured on glass or plastic substrates, they are widely used as switching elements or driving elements in display devices such as liquid crystal display devices or organic light emitting devices.
- An organic light emitting device has a structure in which a light emitting layer is formed between a cathode that injects electrons and an anode that injects holes.
- a light emitting layer is formed between a cathode that injects electrons and an anode that injects holes.
- the cathode may be oxidized by moisture or oxygen penetrating the cathode. If the cathode is oxidized, the efficiency of the light-emitting element may decrease, power consumption may increase, and image quality may also deteriorate.
- the present invention has been designed to overcome the aforementioned problems, and aims to provide an organic light-emitting display device and a manufacturing method thereof, which improves the current uniformity of a large-area cathode by providing an auxiliary electrode layer on the cathode, prevents the penetration of moisture or oxygen, and improves power consumption.
- the present invention provides an organic light-emitting display device including a substrate; and a display area provided on the substrate, the display area including a cathode electrode provided on an organic light-emitting layer and an auxiliary electrode layer, the auxiliary electrode layer including a first titanium nitride (TiN) film provided on the cathode electrode; and a second titanium oxide film (TiO) provided on the first titanium nitride (TiN) film.
- TiN titanium nitride
- TiO titanium oxide film
- the present invention provides an organic light-emitting display device in which the auxiliary electrode layer additionally includes a third titanium nitride film (TiN) provided on the second titanium oxide film (TiO).
- TiN titanium nitride film
- TiO titanium oxide film
- the present invention provides an organic light-emitting display device additionally including a sealing layer provided on the auxiliary electrode layer.
- the present invention provides an organic light-emitting display device in which the first titanium nitride (TiN) film and the second titanium oxide (TiO) film are formed using atomic layer deposition (ALD) or chemical vapor deposition (CVD).
- ALD atomic layer deposition
- CVD chemical vapor deposition
- the present invention provides an organic light-emitting display device in which the first titanium nitride (TiN) film, the second titanium oxide (TiO) film, and the third titanium nitride (TiN) film are formed using atomic layer deposition (ALD) or chemical vapor deposition (CVD).
- ALD atomic layer deposition
- CVD chemical vapor deposition
- the present invention comprises the steps of preparing a substrate having a cathode electrode formed on an organic light-emitting layer; and the steps of forming an auxiliary electrode layer on the cathode electrode.
- the step of forming the auxiliary electrode layer provides a method for manufacturing an organic light-emitting display device, including the step of forming a first titanium nitride (TiN) film on the cathode electrode; and the step of forming a second titanium oxide film (TiO) on the first titanium nitride (TiN) film.
- the present invention provides a method for manufacturing an organic light-emitting display device, wherein the step of forming the auxiliary electrode layer further includes the step of forming a third titanium nitride film (TiN) on the second titanium oxide film (TiO).
- the present invention provides a method for manufacturing an organic light-emitting display device, further comprising a step of forming a sealing layer after the step of forming the auxiliary electrode layer.
- the present invention provides a method for manufacturing an organic light-emitting display device, wherein the step of forming the first titanium nitride (TiN) film and the second titanium oxide (TiO) film includes the steps of injecting a source gas containing titanium (Ti) onto the substrate; and injecting a reactant gas containing nitrogen (N) or oxygen (O).
- the present invention provides a method for manufacturing an organic light-emitting display device, wherein the step of forming the first titanium nitride (TiN) film, the second titanium oxide (TiO) film, and the third titanium nitride (TiN) film includes the steps of injecting a source gas containing titanium (Ti) onto the substrate; and injecting a reactant gas containing nitrogen (N) or oxygen (O).
- the present invention provides a method for manufacturing an organic light-emitting display device, wherein the step of injecting a reactant gas containing nitrogen (N) or oxygen (O) includes plasma.
- the present invention comprises a substrate; and a display area provided on the substrate,
- the above display area includes a cathode electrode and an auxiliary electrode layer provided on an organic light-emitting layer, and the auxiliary electrode layer includes a first tungsten film (W) provided on the cathode electrode; and a second tungsten oxide film (WO) provided on the first tungsten (W).
- An organic light-emitting display device is provided.
- the present invention provides an organic light-emitting display device, wherein the auxiliary electrode layer further includes a third tungsten film (W) provided on the second tungsten oxide film (WO).
- W third tungsten film
- the present invention provides an organic light-emitting display device additionally including a sealing layer provided on the auxiliary electrode layer.
- the present invention provides an organic light-emitting display device in which the first tungsten film (W) and the second tungsten oxide film (WO) are formed using atomic layer deposition (ALD) or chemical vapor deposition (CVD).
- ALD atomic layer deposition
- CVD chemical vapor deposition
- the present invention provides an organic light-emitting display device in which the first tungsten film (W), the second tungsten oxide film (WO), and the third tungsten film (W) are formed using atomic layer deposition (ALD) or chemical vapor deposition (CVD).
- ALD atomic layer deposition
- CVD chemical vapor deposition
- the present invention comprises the steps of preparing a substrate having a cathode electrode formed on an organic light-emitting layer; and the steps of forming an auxiliary electrode layer on the cathode electrode.
- the step of forming the auxiliary electrode layer provides a method for manufacturing an organic light-emitting display device, including the steps of forming a first tungsten film (W) on the cathode electrode; and the steps of forming a second tungsten oxide film (WO) on the first tungsten film (W).
- the present invention provides a method for manufacturing an organic light-emitting display device, wherein the step of forming the auxiliary electrode layer further includes the step of forming a third tungsten film (W) on the second tungsten oxide film (WO).
- the present invention provides a method for manufacturing an organic light-emitting display device, further comprising a step of forming a sealing layer after the step of forming the auxiliary electrode layer.
- the present invention provides a method for manufacturing an organic light-emitting display device, wherein the step of forming the first tungsten film (W) and the second tungsten oxide film (WO) includes the steps of injecting a source gas containing tungsten (W) onto the substrate; and injecting a reactant gas containing hydrogen (H 2 ) or oxygen (O).
- the present invention provides a method for manufacturing an organic light-emitting display device, wherein the step of forming the first tungsten film (W), the second tungsten oxide film (WO), and the third tungsten film (W) includes the step of injecting a source gas containing tungsten (W) onto the substrate; and the step of injecting a reactant gas containing hydrogen (H 2 ) or oxygen (O).
- the present invention provides a method for manufacturing an organic light-emitting display device, wherein the step of forming the first tungsten film (W) and the second tungsten oxide film (WO) includes the step of injecting a source gas containing tungsten (W) and a reactant gas containing hydrogen (H 2 ) or oxygen (O) onto the substrate.
- the present invention provides a method for manufacturing an organic light-emitting display device, wherein the step of forming the first tungsten film (W), the second tungsten oxide film (WO), and the third tungsten film (W) includes the step of injecting a source gas containing tungsten (W) and a reactant gas containing hydrogen (H2) or oxygen (O) onto the substrate.
- the present invention provides a method for manufacturing an organic light-emitting display device, wherein the step of injecting a reactant gas containing hydrogen (H2) or oxygen (O) includes plasma.
- the cathode by forming an auxiliary electrode layer on a cathode forming an organic light-emitting layer, when the cathode is formed over a large area, the current flowing through the cathode can be made to flow uniformly.
- auxiliary electrode layer is formed on the cathode, moisture or air can be prevented from penetrating into the cathode by the auxiliary electrode layer. Accordingly, the cathode is prevented from being oxidized, thereby improving the lifespan of the organic light-emitting layer and preventing the problem of the cathode being oxidized and thus increasing power consumption.
- an auxiliary electrode layer can be formed on a cathode, and since the auxiliary electrode layer is composed of a first layer, a second layer, and a third layer, the auxiliary electrode layer can absorb light in a microwave band, so that the organic light-emitting display device can be provided without a separate polarizing plate. Accordingly, since the light emitted from the organic light-emitting element does not need to pass through the polarizing plate, light of a certain brightness or higher can be implemented even at a low intensity. As a result, the power consumption of the organic light-emitting element can be reduced.
- FIG. 1 is a schematic cross-sectional view of an organic light-emitting display device according to one embodiment of the present invention.
- FIG. 2 is a cross-sectional view of an organic light-emitting display device according to one embodiment of the present invention.
- FIG. 3 is a cross-sectional view of an organic element layer according to one embodiment of the present invention, and is a drawing for explaining the organic element layer in detail.
- FIG. 4 is a schematic cross-sectional view of a substrate processing device for forming an auxiliary electrode layer according to the present invention.
- FIG. 5 is a schematic cross-sectional view of the third electrode and the fourth electrode in a substrate processing device for forming an auxiliary electrode layer according to the present invention.
- FIG. 6 is a schematic cross-sectional view of the third electrode and the fourth electrode in a substrate processing device for forming an auxiliary electrode layer according to the present invention.
- FIG. 7 is a conceptual side view for explaining a modified example of the positions of the first injection portion and the second injection portion in a substrate processing device for forming an auxiliary electrode layer according to the present invention.
- first, second, etc. are used to describe various components, these components are not limited by these terms. These terms are only used to distinguish one component from another. Accordingly, a first component referred to below may also be a second component within the technical concept of the present invention.
- FIG. 1 is a schematic cross-sectional view of an organic light-emitting display device according to one embodiment of the present invention.
- an organic light-emitting display device comprises a substrate (100), a circuit element layer (200), an organic element layer (300), and an encapsulation layer (400).
- the substrate (100) may be made of glass or plastic.
- the substrate (100) may be made of a transparent plastic having flexible properties, for example, polyimide.
- polyimide is used as the substrate (100)
- a heat-resistant polyimide that can withstand high temperatures may be used.
- the circuit element layer (200) may be provided on the substrate (100).
- the circuit element layer (200) may include various wirings and elements for driving pixels, for example, a gate line for transmitting a gate signal to a thin film transistor, a data line for transmitting a data signal, a high-power line for driving a thin film transistor, various types of thin film transistors for driving the organic element layer (300), and an insulating film for insulating between components of the thin film transistor.
- the configuration included in the circuit element layer (200) may vary depending on knowledge in the art.
- the above organic element layer (300) can receive a signal from the circuit element layer (200) and emit light.
- the light emitted from the organic element layer (300) can travel to the upper or lower surface of the organic element layer (300).
- the encapsulation layer (400) may be provided on the organic element layer (300).
- the encapsulation layer (400) may be provided on the organic element layer (300) and at the same time, at one end and the other end of the organic element layer (300), for example, at the left end and the right end in the drawing, and may also be provided on one end and the other end of the circuit element layer (200).
- the encapsulation layer (400) is provided in a form that surrounds the circuit element layer (200) and the organic element layer (300), thereby preventing moisture or air from penetrating into the circuit element layer (200) and the organic element layer (300).
- Fig. 2 is a cross-sectional view of an organic light-emitting display device according to one embodiment of the present invention. At this time, Fig. 2 corresponds to a cross-sectional view illustrating the circuit element layer and organic element layer of Fig. 1 in more detail.
- an organic light-emitting display device comprises a substrate (100), a circuit element layer (200), an organic element layer (300), and an encapsulation layer (400).
- the above circuit element layer (200) is composed of a thin film transistor (TR) including a buffer layer (210), an active layer (220), a gate electrode (240), a source electrode (261), and a drain electrode (262), a gate insulating film (230), an interlayer insulating film (250), and a planarizing layer (270).
- TR thin film transistor
- the buffer layer (210) may be provided on the substrate (100).
- the buffer layer (210) may prevent moisture or oxygen from flowing into the active layer (220).
- the buffer layer (210) may be formed as a single film or multilayer film of silicon oxide (SiO) or silicon nitride (SiN).
- a thin film transistor (TR) may be formed on the substrate (100) or the buffer layer (210).
- the thin film transistor (TR) may include an active layer (220), a gate electrode (240), a source electrode (261), and a drain electrode (262).
- the thin film transistor (TR) according to one embodiment of the present invention is illustrated only as having a top gate structure in which the gate electrode (240) is provided on the active layer (220), but is not limited thereto, and the thin film transistor (TR) may have a bottom gate structure in which the gate electrode (240) is provided below the active layer (220), and further, may have a double gate structure in which the gate electrode (240) is provided above and below the active layer (220).
- the active layer (220) may be formed on the substrate (100) or the buffer layer (210).
- the active layer (220) may be formed of a silicon-based (Si) semiconductor material or an oxide-based semiconductor material.
- a light-blocking layer may be additionally formed between the buffer layer (210) and the active layer (220) to block external light incident on the active layer (220).
- a gate insulating film (230) can be formed on the active layer (220).
- the gate insulating film (230) may include, but is not limited to, a silicon nitride film (SiNx) or a silicon oxide film (SiOx).
- the gate insulating film (230) may have a single film structure or a multilayer film structure.
- the gate electrode (240) can be formed on the gate insulating film (230).
- the gate electrode (240) may include at least one of an aluminum series metal such as aluminum (Al) or an aluminum alloy, a silver series metal such as silver (Ag) or a silver alloy, a copper series metal such as copper (Cu) or a copper alloy, a molybdenum series metal such as molybdenum (Mo) or a molybdenum alloy, chromium (Cr), tantalum (Ta), neodymium (Nd), and titanium (Ti).
- the gate electrode (240) may have a multilayer film structure including at least two different conductive films.
- An interlayer insulating film (250) is formed on the gate electrode (240).
- the interlayer insulating film (250) insulates between the gate electrode (240) and the source electrode (261), and further insulates between the gate electrode (240) and the drain electrode (262).
- the interlayer insulating film (250) may be formed of a single layer or multiple layers including an inorganic insulating material and/or an organic insulating material.
- the interlayer insulating film (250) above is provided with a contact hole. Accordingly, one side of the active layer (220), for example, the left side, may be exposed through the contact hole, and the other side of the active layer (220), for example, the right side, may be exposed.
- the source electrode (261) and the drain electrode (262) can be formed on the interlayer insulating film (250).
- the source electrode (261) is electrically connected to one side of the active layer (220), and the drain electrode (262) is electrically connected to the other side of the active layer (220).
- the source electrode (261) is connected to one side of the active layer (220) through a contact hole provided in the interlayer insulating film (250), and the drain electrode (262) is connected to the other side of the active layer (220) through a contact hole provided in the interlayer insulating film (250).
- a planarization layer (270) is provided on the source electrode (261) and the drain electrode (262).
- a contact hole is provided in the planarization layer (270), so that the source electrode (261) is exposed.
- the drain electrode (262) may be exposed.
- the organic element layer (300) may be provided on the planarization layer (270).
- the organic element layer (300) includes a first electrode (310), a bank layer (320), an organic light-emitting layer (330), a second electrode (340), and a protective electrode layer (350).
- the first electrode (310), the organic light-emitting layer (330), the second electrode (340), and the auxiliary electrode layer (350) may overlap the light-emitting area (EA), and the bank layer (320) may overlap the circuit area (CA).
- the first electrode (310) is formed on the planarization layer (270) and can be connected to the drain electrode (262) of the thin film transistor provided in the circuit element layer (200) through a contact hole provided in the planarization layer (270). However, depending on the case, the first electrode (310) may also be connected to the source electrode of the thin film transistor provided in the circuit element layer (200).
- the first electrode (310) can function as an anode.
- the above bank layer (320) is provided to cover the edge of the first electrode (310) and defines a light-emitting area. Therefore, the upper surface area of the first electrode (310) that is exposed and not covered by the bank layer (320) becomes a light-emitting area.
- the bank layer (320) may be formed of an organic film such as an acrylic resin, an epoxy resin, a phenolic resin, a polyamide resin, or a polyimide resin.
- the above organic light-emitting layer (330) may be provided on the first electrode (310).
- the organic light-emitting layer (330) may be formed by including red, green, and blue light-emitting layers patterned for each pixel, or may be formed by a white light-emitting layer connected to all pixels.
- the organic light-emitting layer (330) may be formed by including, for example, a first stack including a blue light-emitting layer, for example, a second stack including a yellow-green light-emitting layer, and a charge generation layer provided between the first stack and the second stack, but is not necessarily limited thereto.
- the second electrode (340) is provided on the organic light-emitting layer (330).
- the second electrode (340) can function as a cathode.
- the second electrode (340) is not patterned and can be formed on the entire surface of the substrate (100). Therefore, the second electrode (340) can overlap the light-emitting area (EA) and the circuit area (CA).
- the second electrode (340) can also be referred to as a common electrode.
- the second electrode (340) may be formed as a single film or multilayer film of a metal or metal oxide.
- the second electrode (340) may include, for example, any one of silver (Ag), magnesium (Mg), and an alloy of silver (Ag) and magnesium (Mg).
- the auxiliary electrode layer (350) may be provided on the second electrode (340). Specifically, the auxiliary electrode layer (350) may be provided on the upper surface of the second electrode (340) and may be in contact with it. The auxiliary electrode layer (350) may not be patterned and may be formed on the entire surface of the substrate (100) or the second electrode (340). Accordingly, the auxiliary electrode layer (350) may overlap the light-emitting area (EA) and the circuit area (CA).
- the above auxiliary electrode layer (350) can be formed as a multilayer film structure including a metal material and an inorganic material.
- the auxiliary electrode layer (350) can block moisture or oxygen from flowing into the second electrode (340) from the outside, thereby preventing the second electrode (340) from being oxidized. As a result, the auxiliary electrode layer (350) can prevent the second electrode (340) from being oxidized, thereby preventing defects in pixels provided in an organic light-emitting display device according to an embodiment of the present invention, preventing the efficiency of a light-emitting element from being reduced, and preventing power consumption of a light-emitting element from being wasted.
- the auxiliary electrode layer (350) can prevent the uniformity of the current flowing to the second electrode (340) from being reduced. Therefore, even if the second electrode (340) is formed with a large area, the intensity of the current flowing to the second electrode (340) can be maintained to be uniform by the auxiliary electrode layer (350), thereby preventing the quality of the image from being reduced. can prevent.
- the above auxiliary electrode layer (350) is 10 More than 200 It can be formed with the following thickness.
- the auxiliary electrode layer (350) is 10 When formed with a thickness of less than 200, moisture or oxygen may flow into the second electrode (340), and the auxiliary electrode layer (350) may be formed with a thickness of less than 200 When formed with a thickness exceeding , the intensity of light emitted from the organic light-emitting layer (330) may be reduced.
- the above-mentioned sealing layer (400) may be provided on the auxiliary electrode layer (350).
- the sealing layer (400) may be provided with one organic film layer between two inorganic film layers, but is not limited thereto, and may be formed in various forms according to knowledge in the art.
- the sealing layer (400) may prevent moisture or oxygen from flowing into the circuit element layer (200) and the organic element layer (300) provided on the substrate (100).
- FIG. 3 is a cross-sectional view of an organic element layer according to one embodiment of the present invention, and is a drawing for explaining the organic element layer in detail. Therefore, in FIG. 3, the same reference numerals are given to the same components as those given to the components of FIG. 2. At this time, FIG. 3 corresponds to an enlarged drawing of the X region of FIG. 2. Below, the description of the same contents as those explained in FIG. 2 will be omitted.
- the organic element layer (300) is composed of a first electrode (310), an organic light-emitting layer (330), a second electrode (340), and an auxiliary electrode layer (350) including a first layer (351), a second layer (352), and a third layer (353).
- the above auxiliary electrode layer (350) is provided on the second electrode (340) and may be formed of a multilayer film structure including a first layer (351), a second layer (352), and a third layer (353).
- the first layer (351) may be provided on the second electrode (340). Specifically, the first layer (351) may be provided so as to be in contact with the upper surface of the second electrode (340).
- the first layer (351) may be formed by including either a material containing titanium (Ti) or a material containing tungsten (W). In this case, when the first layer (351) includes a material containing titanium (Ti), the first layer (351) may be formed by including titanium nitride (TiN).
- the above second layer (352) can be provided on the above first layer (351).
- the second layer (352) may be formed of a material different from that of the first layer (351).
- the second layer (352) may be formed of a material containing one of titanium (Ti), tungsten (W), and silicon (Si).
- the second layer (352) may be formed by including titanium oxide (TiO), when the second layer (352) includes tungsten (W), the second layer (352) may be formed by including tungsten oxide (WO), and when the second layer (352) includes silicon (Si), the second layer (352) may be formed by including any one of silicon oxide (SiO), silicon nitride (SiN), and silicon oxynitride (SiON).
- the second layer (352) is formed by including a different material from the first layer (351), when the first layer (351) is formed by including titanium nitride (TiN), the second layer (352) may be formed by including any one of titanium oxide (TiO), silicon oxide (SiO), silicon nitride (SiN), and silicon oxynitride (SiON).
- the second layer (352) may include any one of tungsten oxide (WO), silicon oxide (SiO), silicon nitride (SiN), and silicon oxynitride (SiON).
- the third layer (353) may be provided on the second layer (352).
- the third layer (353) may be formed of the same material as the first layer (351) and may be formed of a different material from the second layer (352).
- the third layer (353) may be formed of either a material containing titanium (Ti) or a material containing tungsten (W).
- the first layer (351) when the first layer (351) includes a material containing titanium (Ti), the first layer (351) may be formed of titanium nitride (TiN).
- the second layer (352) may include any one of titanium oxide (TiO), silicon oxide (SiO), silicon nitride (SiN), and silicon oxynitride (SiON).
- the auxiliary electrode layer (350) including the first layer (351) to the third layer (353) may include any one of the three-layer structures of titanium nitride (TiN)/titanium oxide (TiO)/titanium nitride (TiN), titanium nitride (TiN)/silicon oxide (SiO)/titanium nitride (TiN), titanium nitride (TiN)/silicon nitride (SiN)/titanium nitride (TiN), and titanium nitride (TiN)/silicon oxynitride (SiON)/titanium nitride (TiN).
- the auxiliary electrode layer (350) can effectively absorb light coming from the outside of the organic light-emitting display device, thereby preventing the performance of the organic light-emitting display device from being deteriorated by light.
- the second layer (352) may include any one of tungsten oxide (WO), silicon oxide (SiO), silicon nitride (SiN), and silicon oxynitride (SiON).
- the auxiliary electrode layer (350) including the first layer (351) to the third layer (353) may include any one of the three-layer structures of tungsten (W)/tungsten oxide (WO)/tungsten (W), tungsten (W)/silicon oxide (SiO)/tungsten (W), tungsten (W)/silicon nitride (SiN)/tungsten (W), and tungsten (W)/silicon oxynitride (SiON)/tungsten (W).
- the auxiliary electrode layer (350) can effectively absorb light coming from the outside of the organic light-emitting display device, thereby preventing the performance of the organic light-emitting display device from being deteriorated by light.
- the auxiliary electrode layer (350) is formed by including the first layer (351), the second layer (352), and the third layer (353), the auxiliary electrode layer (350) can absorb light of the entire wavelength range that is introduced from the outside.
- the organic light-emitting display device may not have a separate polarizing plate for removing external light.
- the polarizing plate serves to block external light, but at the same time, light emitted from the organic light-emitting layer (see 300 of FIG. 2) may also be blocked, which may cause a problem in that light transmittance decreases. Therefore, in order to compensate for this problem, high power must be used to increase the intensity of light emitted from the organic light-emitting layer (see 300 of FIG. 2), but in this case, a problem in that power consumption increases may occur.
- auxiliary electrode layer (350), the first layer (351), the second layer (352), and the third layer (353) are mainly described as including, for example, titanium nitride (TiN)/titanium oxide (TiO)/titanium nitride (TiN) or tungsten (W)/tungsten oxide (WO)/tungsten (W), respectively.
- TiN titanium nitride
- TiO titanium nitride
- TiN titanium nitanium oxide
- TiN titanium nitanium oxide
- TiN titanium nitride
- TiO titanium nitanium oxide
- TiN titanium nitanium oxide
- W tungsten oxide
- WO tungsten oxide
- the first layer (351), the second layer (352), and the third layer (353) may each be formed using atomic layer deposition (ALD), chemical vapor deposition (CVD), plasma enhanced atomic layer deposition (PEALD), or plasma enhanced chemical vapor deposition (PECVD).
- ALD atomic layer deposition
- CVD chemical vapor deposition
- PEALD plasma enhanced atomic layer deposition
- PECVD plasma enhanced chemical vapor deposition
- the first layer (351), the second layer (352), and the third layer (353) are formed using, for example, atomic layer deposition (ALD)
- the first layer (351), the second layer (352), and the third layer (353) can be formed by repeatedly performing the steps of injecting a source gas and then injecting a reactant gas as one cycle.
- the first layer (351), the second layer (352), and the third layer (353) can also be formed using plasma enhanced atomic layer deposition (PEALD).
- PEALD plasma enhanced atomic layer deposition
- the source gas includes a material containing titanium (Ti) and the reactant gas includes a material containing nitrogen (N) or oxygen (O)
- a layer including titanium nitride (TiN) or titanium oxide (TiO) can be formed by the atomic layer deposition (ALD).
- the source gas when forming the first layer (351) and the third layer (353), includes a material containing titanium (Ti) and the reactant gas includes a material containing nitrogen (N), so that when using the atomic layer deposition (ALD), the first layer (351) and the third layer (353) can be formed by including titanium nitride (TiN), and when forming the second layer (352), the source gas includes a material containing titanium (Ti) and the reactant gas includes a material containing oxygen (O), so that when using the atomic layer deposition (ALD), the second layer (352) can be formed by including titanium oxide (TiO).
- the source gas includes a material containing tungsten (W) and the reactant gas includes a material containing hydrogen (H 2 ) or oxygen (O)
- a layer containing tungsten (W) or tungsten oxide (WO) can be formed by the atomic layer deposition (ALD).
- the source gas when forming the first layer (351) and the third layer (353), includes a material containing tungsten (W) and the reactant gas includes a material containing hydrogen (H 2 ), so that when using the atomic layer deposition (ALD) method, the first layer (351) and the third layer (353) can be formed by including tungsten (W), and when forming the second layer (352), the source gas includes a material containing tungsten (W) and the reactant gas includes a material containing oxygen (O), so that when using the atomic layer deposition (ALD) method, the second layer (352) can be formed by including tungsten oxide (WO).
- the first layer (351), the second layer (352), and the third layer (353) are formed using, for example, a chemical vapor deposition (CVD) method
- the first layer (351), the second layer (352), and the third layer (353) can be formed by respectively injecting a source gas and simultaneously injecting a reactant gas.
- the first layer (351), the second layer (352), and the third layer (353) can also be formed using a plasma enhanced chemical vapor deposition (PECVD).
- PECVD plasma enhanced chemical vapor deposition
- the source gas includes a material containing titanium (Ti) and the reactant gas includes a material containing nitrogen (N) or oxygen (O)
- a layer including titanium nitride (TiN) or titanium oxide (TiO) can be formed by the chemical vapor deposition (CVD) method.
- the source gas when forming the first layer (351) and the third layer (353), includes a material containing titanium (Ti) and the reactant gas includes a material containing nitrogen (N), so that when using the chemical vapor deposition (CVD) method, the first layer (351) and the third layer (353) can be formed by including titanium nitride (TiN), and when forming the second layer (352), the source gas includes a material containing titanium (Ti) and the reactant gas includes a material containing oxygen (O), so that when using the chemical vapor deposition (CVD) method, the second layer (352) can be formed by including titanium oxide (TiO).
- the source gas includes a material containing tungsten (W) and the reactant gas includes a material containing hydrogen (H 2 ) or oxygen (O)
- a layer containing tungsten (W) or tungsten oxide (WO) can be formed by the chemical vapor deposition (CVD) method.
- the source gas when forming the first layer (351) and the third layer (353), includes a material containing tungsten (W) and the reactant gas includes a material containing hydrogen (H 2 ), so that when using the chemical vapor deposition (CVD) method, the first layer (351) and the third layer (353) can be formed by including tungsten (W), and when forming the second layer (352), the source gas includes a material containing tungsten (W) and the reactant gas includes a material containing oxygen (O), so that when using the chemical vapor deposition (CVD) method, the second layer (352) can be formed by including tungsten oxide (WO).
- auxiliary electrode layer (350) is provided on the second electrode (340), a separate polarizing plate may not be provided. Accordingly, the power consumption of the organic light-emitting display device can be controlled so as not to become excessively high.
- the substrate processing device (1) performs a processing process for a substrate (20).
- the substrate processing device (1) can perform a deposition process for depositing a thin film on the substrate (20).
- the substrate processing device (1) can perform a deposition process such as CVD (Chemical Vapor Depostion), ALD (Atomic Layer Deposition), etc.
- the substrate processing device (1) includes a mounting table (2), a third electrode (3), a fourth electrode (4), a first injection unit (5), a second injection unit (6), a first injection unit (7), and a second injection unit (8).
- the mounting stand (2) supports the substrate (20).
- the substrate (20) can be mounted on the mounting stand (2).
- the mounting stand (2) can be placed on the lower side of the fourth electrode (4).
- the substrate (20) can be mounted on the upper surface of the mounting stand (2).
- the substrate (20) can be a semiconductor substrate, a wafer, or the like.
- the mounting stand (2) can also support a plurality of substrates (20).
- the above-mentioned mounting plate (2) can be coupled to a chamber (50).
- the chamber (50) provides a processing space where the processing process is performed.
- the above-mentioned mounting plate (2) can be placed inside the chamber (50).
- the above-mentioned mounting plate (2) can also be rotatably coupled to the chamber (50).
- the above-mentioned mounting plate (2) can be connected to a rotating member that provides rotating force. The rotating member can rotate the substrate (20) supported on the above-mentioned mounting plate (2) by rotating the above-mentioned mounting plate (2).
- the third electrode (3) is positioned on the upper side of the mounting plate (2).
- the third electrode (3) may be positioned on the upper side of the fourth electrode (4).
- the third electrode (3) may be positioned so as to be spaced a predetermined distance upward from the fourth electrode (4).
- the third electrode (3) may be positioned inside the chamber (50).
- the third electrode (3) may be coupled to the chamber (50) so as to be positioned on the upper side of the chamber (50).
- the third electrode (3) may be formed in an overall square plate shape, but is not limited thereto and may be formed in another shape, such as a disc shape.
- the fourth electrode (4) is positioned between the third electrode (3) and the mounting plate (3).
- the fourth electrode (4) may be positioned below the third electrode (3) and above the mounting plate (3).
- the fourth electrode (4) may be positioned so as to be spaced a predetermined distance upward from the mounting plate (3).
- the fourth electrode (4) may be positioned inside the chamber (50).
- the fourth electrode (4) may be formed in an overall square plate shape, but is not limited thereto and may be formed in another shape, such as a disc shape.
- the fourth electrode (4) and the third electrode (3) can be used to generate plasma.
- One of the fourth electrode (4) and the third electrode (3) can be applied with RF (Radio Frequency) power, and the other can be grounded. Accordingly, a discharge can be generated by an electric field applied between the fourth electrode (4) and the third electrode (3), thereby generating plasma.
- RF power can be applied to the fourth electrode (4), and the third electrode (3) can be grounded.
- the fourth electrode (4) can be grounded, and RF power can be applied to the third electrode (3).
- An opening (41) may be formed in the fourth electrode (4).
- the opening (41) may be formed to penetrate the fourth electrode (4).
- the opening (41) may be formed to penetrate the upper and lower surfaces of the fourth electrode (4).
- the opening (41) may be formed in an overall cylindrical shape, but is not limited thereto and may be formed in other shapes, such as a rectangular parallelepiped shape.
- a protruding electrode (31) may be coupled to the third electrode (3).
- the protruding electrode (31) may be coupled to the third electrode (3) so as to protrude toward the mounting plate (2).
- the protruding electrode (31) may protrude from the lower surface of the third electrode (3).
- the protruding electrode (31) and the third electrode (3) may be formed integrally.
- the protruding electrode (31) may be grounded through the third electrode (3).
- RF power is applied to the third electrode (3), RF power may be applied to the protruding electrode (31) through the third electrode (3).
- the fourth electrode (4) may have a plurality of openings (41).
- the openings (41) may be positioned at positions spaced apart from each other.
- the third electrode (3) may have a plurality of protruding electrodes (31) coupled thereto.
- the protruding electrodes (31) may be positioned at positions spaced apart from each other.
- the openings (41) may be positioned at positions corresponding to the protruding electrodes (31). Accordingly, the protruding electrodes (31) may protrude toward the openings (41).
- the protruding electrodes (31) may protrude to a length that allows them to be inserted into the openings (41).
- the protruding electrodes (31) may also protrude to a length that does not allow them to be inserted into the openings (41). In this case, the protruding electrodes (31) may be positioned above the openings (41).
- the first injection unit (5) injects the first gas.
- the first gas may be a gas for performing a processing process on the substrate (20).
- the first gas may be a mixed gas in which a gas for performing a processing process on the substrate (20) and a gas for generating plasma are mixed.
- the first injection unit (5) can inject the first gas into the first injection unit (7).
- the first gas injected into the first injection unit (7) can flow along the first injection unit (7) so as to be injected toward the entire front surface of the substrate (20), and then be injected toward the mounting plate (2) through the third electrode (3).
- the entire front surface of the substrate (20) can correspond to the entire upper surface of the substrate (20).
- the upper surface of the substrate (20) is a surface arranged to face the fourth electrode (4).
- the first injection unit (5) can be coupled to the chamber (50).
- the second injection unit (6) injects a second gas.
- the second gas may be a gas for performing a processing process on the substrate (20).
- the second gas may be a mixed gas in which a gas for performing a processing process on the substrate (20) and a gas for generating plasma are mixed.
- the second gas and the first gas may be composed of different components.
- the second injection unit (6) can inject the second gas into the second injection unit (8).
- the second gas injected into the second injection unit (8) can flow along the second injection unit (8) so as to be injected toward the entire surface of the substrate (20), and then be injected toward the mounting plate (2) through the third electrode (3).
- the second injection unit (6) can be coupled to the chamber (50).
- the second gas injected by the second injection unit (6) and the first gas injected by the first injection unit (5) can be used to perform a processing process on the substrate (20) by being injected toward the substrate (20) supported on the mounting plate (2). Therefore, the first gas and the second gas can be injected by the gas injection unit separately.
- the second injection unit (6) and the first injection unit (5) can be respectively positioned on the same side with respect to the third electrode (3).
- the second injection unit (6) and the first injection unit (5) can inject the second gas and the first gas into the second injection unit (8) and the first injection unit (7), respectively.
- the embodiment may be such that the second injection portion (6) is disposed on one side (3a) of the third electrode (3) and the first injection portion (5) is disposed on one side (3a) of the third electrode (3). That is, the embodiment may be such that the second injection portion (6) and the first injection portion (5) are disposed on the same side with respect to the third electrode (3).
- the second gas injected into the second injection unit (8) by the second injection unit (6) flows from one side (3a) of the third electrode (3) to the other side (3c). Accordingly, the second gas is injected from one side (21) to the other side (22) of the substrate (20).
- the dotted arrow in Fig. 5 indicates the second gas.
- the first gas injected into the first injection unit (7) by the first injection unit (5) flows from one side (3a) of the third electrode (3) toward the other side (3c). Accordingly, the gas is injected toward the substrate (20) as it flows from one side (21) to the other side (22) of the substrate (20).
- the solid arrow in Fig. 5 indicates the first gas.
- both the second injection part (6) and the first injection part (5) are arranged on one side (3a) of the third electrode (3), but this is not limited to this, and the second injection part (6) and the first injection part (5) may be implemented differently if they are arranged on the same side with respect to the third electrode (3).
- both the second injection unit (6) and the first injection unit (5) may be placed on the other side (3c) of the third electrode (3).
- both the second injection unit (6) and the first injection unit (5) may be arranged to inject the second gas and the first gas through the central portion of the third electrode (3) from the upper side (3b) of the third electrode (3).
- the first injection unit (7) injects the first gas through the third electrode (3).
- the first injection unit (7) can be connected to the first injection unit (5).
- the first gas injected into the first injection unit (7) by the first injection unit (5) can flow along the first injection unit (7) and be injected toward the mounting plate (2).
- the above first injection unit (7) may include a first injection member (71).
- the first injection member (71) is disposed inside the third electrode (3).
- the first injection member (71) can function as a passage for flowing the first gas injected from the first injection portion (5).
- the first injection member (71) can be formed to extend along the first axial direction (X-axis direction). Accordingly, the first gas injected into the first injection member (71) can flow along the first axial direction (X-axis direction) along the first injection member (71).
- the first injection member (71) can be implemented as a pipe, a tube, or the like. In this case, the first injection member (71) can be coupled to the third electrode (3) so as to be disposed inside the third electrode (3).
- the first injection member (71) may be implemented to be placed inside the third electrode (3) by forming a groove in the inside of the third electrode (3).
- the first injection unit (7) may include a first injection hole (72).
- the first injection hole (72) is for injecting the first gas toward the mounting plate (2).
- the first injection hole (72) may be connected to the first injection member (71). Accordingly, the first gas flowing along the first injection member (71) may be injected toward the mounting plate (2) through the first injection hole (72).
- the first injection hole (72) may be formed such that one end is connected to the first injection member (71) and the other end penetrates the third electrode (3).
- the first injection hole (72) may be formed parallel to the up-down direction (Z-axis direction).
- the first injection unit (7) may include a plurality of first injection holes (72).
- the first injection holes (72) may be arranged to be spaced apart from each other along the first axial direction (X-axis direction). Accordingly, the first injection holes (72) may inject the first gas to different parts of the substrate (20) supported on the mounting plate (2).
- the first injection holes (72) may be respectively connected to different parts of the first injection member (71). Accordingly, the first gas may flow along the first injection member (71) in the first axial direction (X-axis direction) and be injected toward the mounting plate (2) through the first injection holes (72).
- the first injection unit (7) can be implemented to inject the first gas entirely toward the substrate (20) based on the first axial direction (X-axis direction).
- the first injection unit (7) can include a plurality of first injection members (71).
- the first injection members (71) may be arranged at positions spaced apart from each other along the second axial direction (Y-axis direction).
- the second axial direction (Y-axis direction) and the first axial direction (X-axis direction) are axial directions that are arranged perpendicular to each other on one plane.
- a plurality of first injection holes (72) may be connected to each of the first injection members (71). Accordingly, the first injection members (71) may spray the first gas toward the mounting plate (2) through the first injection holes (72).
- the substrate processing device (1) according to the present invention may not only spray the first gas toward the substrate (20) as a whole based on the first axial direction (X-axis direction), but may also spray the first gas toward the substrate (20) as a whole based on the second axial direction (Y-axis direction). Accordingly, the substrate processing device (1) according to the present invention is implemented so as to be able to spray the first gas toward the entire surface of the substrate (20) placed on the mounting stand (2).
- the first injection holes (72) may be formed to penetrate the protruding electrode (31). In this case, the first gas may be sprayed toward the opening (41) through the first injection holes (72) and then flow toward the mounting stand (2) through the opening (41).
- the second injection unit (8) injects the second gas through the third electrode (3).
- the second injection unit (8) can be connected to the second injection unit (6).
- the second gas injected into the second injection unit (8) by the second injection unit (6) can flow along the second injection unit (8) and be injected toward the mounting plate (2).
- the above second injection unit (8) may include a second injection member (81).
- the second injection member (81) is disposed inside the third electrode (3).
- the second injection member (81) can function as a passage for flowing the second gas injected from the second injection portion (6).
- the second injection member (81) can be formed to extend along the first axial direction (X-axis direction). Accordingly, the second gas injected into the second injection member (81) can flow along the second injection member (81) in the first axial direction (X-axis direction).
- the second injection member (81) can be implemented as a pipe, a tube, or the like. In this case, the second injection member (81) can be coupled to the third electrode (3) so as to be disposed inside the third electrode (3).
- the second injection member (81) may be implemented to be placed inside the third electrode (3) by forming a groove inside the third electrode (3).
- the substrate processing device (1) when the substrate processing device (1) needs to control the temperature of the second gas flowing along the second injection member (81), the temperature of the third electrode (3) can be controlled to directly control the temperature of the second gas. Accordingly, the substrate processing device (1) can improve the ease and accuracy of the task of controlling the temperature of the second gas.
- the above second injection unit (8) may include a second injection hole (82).
- the second injection hole (82) is for injecting the second gas toward the mounting plate (2).
- the second injection hole (82) may be connected to the second injection member (81). Accordingly, the second gas flowing along the second injection member (81) may be injected toward the mounting plate (2) through the second injection hole (82).
- the second injection hole (82) may be formed such that one end is connected to the second injection member (81) and the other end penetrates the third electrode (3).
- the second injection hole (82) may be formed parallel to the up-down direction (Z-axis direction).
- the second injection unit (8) may include a plurality of second injection holes (82).
- the second injection holes (82) may be arranged to be spaced apart from each other along the first axial direction (X-axis direction). Accordingly, the second injection holes (82) may inject the second gas to different parts of the substrate (20) supported on the mounting plate (2).
- the second injection holes (82) may be respectively connected to different parts of the second injection member (81). Accordingly, the second gas may flow along the second injection member (81) in the first axial direction (X-axis direction) and be injected toward the mounting plate (2) through the second injection holes (82).
- the second injection holes (82) and the first injection holes (72) may be arranged alternately in a plurality based on the first axial direction (X-axis direction).
- the second injection unit (8) can be implemented to inject the second gas entirely toward the substrate (20) based on the first axial direction (X-axis direction).
- the second injection unit (8) can include a plurality of second injection members (81).
- the second injection members (81) may be arranged at positions spaced apart from each other along the second axial direction (Y-axis direction).
- a plurality of second injection holes (82) may be connected to each of the second injection members (81). Accordingly, the second injection members (81) may inject the second gas toward the mounting plate (2) through the second injection holes (82).
- the substrate processing device (1) according to the present invention may not only inject the second gas toward the entire substrate (20) based on the first axial direction (X-axis direction), but may also inject the second gas toward the entire substrate (20) based on the second axial direction (Y-axis direction). Accordingly, the substrate processing device (1) according to the present invention is implemented so as to inject the second gas toward the entire surface of the substrate (20) mounted on the mounting plate (2).
- the second injection holes (82) may be arranged above the fourth electrode (4). In this case, the second gas may be injected between the third electrode (3) and the fourth electrode (4) through the second injection holes (82), and then flow toward the mounting plate (2) through the opening (41).
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Abstract
Description
Claims (24)
- 기판; 및상기 기판 상에 구비되는 표시 영역을 포함하고,상기 표시 영역은 유기 발광층 상에 구비되는 캐소드 전극 및 보조 전극층을 포함하며,상기 보조 전극층은,상기 캐소드 전극 상에 구비되는 제1 티타늄 질화막(TiN); 및상기 제1 티타늄 질화막(TiN) 상에 구비되는 제2 티타늄 산화막(TiO)을 포함하는 유기발광 표시 장치.
- 제1 항에 있어서,상기 보조 전극층은 상기 제2 티타늄 산화막(TiO) 상에 구비되는 제3 티타늄 질화막(TiN)을 추가로 포함하는 유기발광 표시장치.
- 제1 항에 있어서,상기 보조 전극층 상에 구비되는 봉지층을 추가로 포함하는 유기발광 표시 장치.
- 제1 항에 있어서,상기 제1 티타늄 질화막(TiN) 및 제2 티타늄 산화막(TiO)은 원자층 증착법(ALD) 또는 화학 기상 증착법(CVD)을 이용하여 형성되는 유기발광 표시장치.
- 제2 항에 있어서,상기 제1 티타늄 질화막(TiN), 제2 티타늄 산화막(TiO) 및 제3 티타늄 질화막(TiN)은 원자층 증착법(ALD) 또는 화학 기상 증착법(CVD)을 이용하여 형성되는 유기발광 표시장치.
- 유기 발광층 상에 캐소드 전극이 형성된 기판을 준비하는 단계; 및상기 캐소드 전극 상에 보조 전극층을 형성하는 단계를 포함하고,상기 보조 전극층을 형성하는 단계는,상기 캐소드 전극 상에 제1 티타늄 질화막(TiN)을 형성하는 단계; 및상기 제1 티타늄 질화막(TiN) 상에 제2 티타늄 산화막(TiO)을 형성하는 단계를 포함하는 유기발광 표시장치의 제조방법.
- 제6 항에 있어서,상기 보조 전극층을 형성하는 단계는 상기 제2 티타늄 산화막(TiO) 상에 제3 티타늄 질화막(TiN)을 형성하는 단계를 추가로 포함하는 유기발광 표시장치의 제조방법.
- 제6 항에 있어서,상기 보조 전극층을 형성하는 단계 이후에 봉지층을 형성하는 단계를 추가로 포함하는 유기발광 표시장치의 제조방법.
- 제5 항에 있어서,상기 제1 티타늄 질화막(TiN) 및 상기 제2 티타늄 산화막(TiO)을 형성하는 단계는,상기 기판 상에 티타늄(Ti)을 함유한 소스 가스를 분사하는 단계; 및질소(N) 또는 산소(O)를 함유하는 리액턴트 가스를 분사하는 단계를 포함하는 유기발광 표시장치의 제조방법.
- 제7 항에 있어서,상기 제1 티타늄 질화막(TiN), 상기 제2 티타늄 산화막(TiO) 및 상기 제3 티타늄 질화막(TiN)을 형성하는 단계는,상기 기판 상에 티타늄(Ti)을 함유한 소스 가스를 분사하는 단계; 및질소(N) 또는 산소(O)를 함유하는 리액턴트 가스를 분사하는 단계를 포함하는 유기발광 표시장치의 제조방법.
- 제9 항 또는 제10 항에 있어서,상기 질소(N) 또는 산소(O)를 함유하는 리액턴트 가스를 분사하는 단계는 플라즈마를 포함하는 유기발광 표시장치의 제조방법.
- 기판; 및상기 기판 상에 구비되는 표시 영역을 포함하고,상기 표시 영역은 유기 발광층 상에 구비되는 캐소드 전극 및 보조 전극층을 포함하며,상기 보조 전극층은,상기 캐소드 전극 상에 구비되는 제1 텅스텐막(W); 및상기 제1 텅스텐(W) 상에 구비되는 제2 텅스텐 산화막(WO)을 포함하는 유기발광 표시 장치.
- 제12 항에 있어서,상기 보조 전극층은 상기 제2 텅스텐 산화막(WO) 상에 구비되는 제3 텅스텐막(W)을 추가로 포함하는 유기발광 표시장치.
- 제12 항에 있어서,상기 보조 전극층 상에 구비되는 봉지층을 추가로 포함하는 유기발광 표시 장치.
- 제12 항에 있어서,상기 제1 텅스텐막(W) 및 제2 텅스텐 산화막(WO)은 원자층 증착법(ALD) 또는 화학 기상 증착법(CVD)을 이용하여 형성되는 유기발광 표시장치.
- 제13 항에 있어서,상기 제1 텅스텐막(W), 제2 텅스텐 산화막(WO) 및 제3 텅스텐막(W)은 원자층 증착법(ALD) 또는 화학 기상 증착법(CVD)을 이용하여 형성되는 유기발광 표시장치.
- 유기 발광층 상에 캐소드 전극이 형성된 기판을 준비하는 단계; 및상기 캐소드 전극 상에 보조 전극층을 형성하는 단계를 포함하고,상기 보조 전극층을 형성하는 단계는,상기 캐소드 전극 상에 제1 텅스텐막(W)을 형성하는 단계; 및상기 제1 텅스텐막(W) 상에 제2 텅스텐 산화막(WO)을 형성하는 단계를 포함하는 유기발광 표시장치의 제조방법.
- 제17 항에 있어서,상기 보조 전극층을 형성하는 단계는 상기 제2 텅스텐 산화막(WO) 상에 제3 텅스텐막(W)을 형성하는 단계를 추가로 포함하는 유기발광 표시장치의 제조방법.
- 제17 항에 있어서,상기 보조 전극층을 형성하는 단계 이후에 봉지층을 형성하는 단계를 추가로 포함하는 유기발광 표시장치의 제조방법.
- 제17 항에 있어서,상기 제1 텅스텐막(W) 및 상기 제2 텅스텐 산화막(WO)을 형성하는 단계는,상기 기판 상에 텅스텐(W)을 함유한 소스 가스를 분사하는 단계; 및수소(H2) 또는 산소(O)를 함유하는 리액턴트 가스를 분사하는 단계를 포함하는 유기발광 표시장치의 제조방법.
- 제18 항에 있어서,상기 제1 텅스텐막(W), 상기 제2 텅스텐 산화막(WO) 및 상기 제3 텅스텐막(W)을 형성하는 단계는,상기 기판 상에 텅스텐(W)을 함유한 소스 가스를 분사하는 단계; 및수소(H2) 또는 산소(O)를 함유하는 리액턴트 가스를 분사하는 단계를 포함하는 유기발광 표시장치의 제조방법.
- 제17 항에 있어서,상기 제1 텅스텐막(W) 및 상기 제2 텅스텐 산화막(WO)을 형성하는 단계는,상기 기판 상에 텅스텐(W)을 함유한 소스 가스 및 수소(H2) 또는 산소(O)를 함유하는 리액턴트 가스를 분사하는 단계를 포함하는 유기발광 표시장치의 제조방법.
- 제18 항에 있어서,상기 제1 텅스텐막(W), 상기 제2 텅스텐 산화막(WO) 및 상기 제3 텅스텐막(W)을 형성하는 단계는,상기 기판 상에 텅스텐(W)을 함유한 소스 가스 및 수소(H2) 또는 산소(O)를 함유하는 리액턴트 가스를 분사하는 단계를 포함하는 유기발광 표시장치의 제조방법.
- 제20 항 내지 제23 항 중 어느 한 하나의 항에 있어서,상기 수소(H2) 또는 산소(O)를 함유하는 리액턴트 가스를 분사하는 단계는 플라즈마를 포함하는 유기발광 표시장치의 제조방법.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2025571201A JP2026526629A (ja) | 2023-06-07 | 2024-06-04 | 有機発光表示装置及びその製造方法 |
| CN202480037918.5A CN121312306A (zh) | 2023-06-07 | 2024-06-04 | 有机发光显示设备及其制造方法 |
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| KR10-2023-0072756 | 2023-06-07 | ||
| KR1020230072756A KR20240173794A (ko) | 2023-06-07 | 2023-06-07 | 유기발광 표시장치 및 그 제조방법 |
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| PCT/KR2024/007617 Ceased WO2024253404A1 (ko) | 2023-06-07 | 2024-06-04 | 유기발광 표시장치 및 그 제조방법 |
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| JP (1) | JP2026526629A (ko) |
| KR (1) | KR20240173794A (ko) |
| CN (1) | CN121312306A (ko) |
| TW (1) | TW202517123A (ko) |
| WO (1) | WO2024253404A1 (ko) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20040035193A (ko) * | 2002-10-18 | 2004-04-29 | 엘지전자 주식회사 | 유기 el 소자 |
| JP2005032563A (ja) * | 2003-07-14 | 2005-02-03 | Sumitomo Heavy Ind Ltd | 成膜方法、有機el素子及びその製造方法 |
| KR20060091648A (ko) * | 2005-02-16 | 2006-08-21 | 삼성에스디아이 주식회사 | 다층 캐소드를 포함하는 유기 발광 소자 |
| KR100931060B1 (ko) * | 2008-04-02 | 2009-12-10 | 단국대학교 산학협력단 | 유기 전계 발광 소자 |
| CN102864417A (zh) * | 2012-08-22 | 2013-01-09 | 吉林大学 | 电子束蒸发结合原子层沉积钝化层实现有机器件封装的方法 |
-
2023
- 2023-06-07 KR KR1020230072756A patent/KR20240173794A/ko active Pending
-
2024
- 2024-06-04 CN CN202480037918.5A patent/CN121312306A/zh active Pending
- 2024-06-04 WO PCT/KR2024/007617 patent/WO2024253404A1/ko not_active Ceased
- 2024-06-04 JP JP2025571201A patent/JP2026526629A/ja active Pending
- 2024-06-05 TW TW113120820A patent/TW202517123A/zh unknown
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20040035193A (ko) * | 2002-10-18 | 2004-04-29 | 엘지전자 주식회사 | 유기 el 소자 |
| JP2005032563A (ja) * | 2003-07-14 | 2005-02-03 | Sumitomo Heavy Ind Ltd | 成膜方法、有機el素子及びその製造方法 |
| KR20060091648A (ko) * | 2005-02-16 | 2006-08-21 | 삼성에스디아이 주식회사 | 다층 캐소드를 포함하는 유기 발광 소자 |
| KR100931060B1 (ko) * | 2008-04-02 | 2009-12-10 | 단국대학교 산학협력단 | 유기 전계 발광 소자 |
| CN102864417A (zh) * | 2012-08-22 | 2013-01-09 | 吉林大学 | 电子束蒸发结合原子层沉积钝化层实现有机器件封装的方法 |
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| Publication number | Publication date |
|---|---|
| KR20240173794A (ko) | 2024-12-16 |
| CN121312306A (zh) | 2026-01-09 |
| TW202517123A (zh) | 2025-04-16 |
| JP2026526629A (ja) | 2026-08-10 |
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