Abstract: A display panel including: a substrate; a multi-layer wiring layer disposed over the substrate and including a first power line and a second power line; organic electroluminescence elements over the multi-layer wiring layer; a partition wall over the multi-layer wiring layer; and a member over the multi-layer wiring layer, a height of the member from the substrate being greater than a height of the partition wall from the substrate, wherein the multi-layer wiring layer includes a first portion and a second portion, the organic electroluminescence elements are arrayed on the first portion, in the second portion, the first power line and the second power line intersect, and the member is positioned on the second portion without overlapping at least one of the first power line and the second power line in plan view of the substrate.

Abstract: An examination is performed of whether or not a bank having a defect portion is present. When a bank having a defect portion is present, the bank having the defect portion is repaired by forming a dam in each of adjacent concave spaces between which the bank having the defect portion is located. A dam formed in a concave space partitioning the concave space into a first space in a vicinity of the defect portion and a second space outside the vicinity of the defect portion.

Abstract: Each of blue light emitting elements includes: a photoanode; a translucent cathode; an organic light emitting layer between the photoanode and the translucent cathode; a first functional layer between the organic light emitting layer and the photoanode; and a second functional layer between the organic light emitting layer and the translucent cathode, and has a resonator structure. The first functional layer has an optical film thickness of 48-62 nm. The translucent cathode is a stack of a first translucent conductive layer, a metal layer, and a second translucent conductive layer stacked in this order from the second functional layer side. The first translucent conductive layer has a refractivity of 2.0-2.4, and a film thickness of 85-97 nm. The metal layer has a refractivity different by 0 to 2.0 from that of the first translucent conductive layer, and has a film thickness of 2-22 nm.

Abstract: An examination is performed of whether or not a bank having a defect portion is present. When a bank having a defect portion is present, the bank having the defect portion is repaired by forming a dam in each of adjacent concave spaces between which the bank having the defect portion is located. A dam formed in a concave space partitioning the concave space into a first space in a vicinity of the defect portion and a second space outside the vicinity of the defect portion.

Abstract: A display panel including: a substrate; a multi-layer wiring layer disposed over the substrate and including a first power line and a second power line; organic electroluminescence elements over the multi-layer wiring layer; a partition wall over the multi-layer wiring layer; and a member over the multi-layer wiring layer, a height of the member from the substrate being greater than a height of the partition wall from the substrate, wherein the multi-layer wiring layer includes a first portion and a second portion, the organic electroluminescence elements are arrayed on the first portion, in the second portion, the first power line and the second power line intersect, and the member is positioned on the second portion without overlapping at least one of the first power line and the second power line in plan view of the substrate.

Abstract: Each of blue light emitting elements includes: a photoanode; a translucent cathode; an organic light emitting layer between the photoanode and the translucent cathode; a first functional layer between the organic light emitting layer and the photoanode; and a second functional layer between the organic light emitting layer and the translucent cathode, and has a resonator structure. The first functional layer has an optical film thickness of 48-62 nm. The translucent cathode is a stack of a first translucent conductive layer, a metal layer, and a second translucent conductive layer stacked in this order from the second functional layer side. The first translucent conductive layer has a refractivity of 2.0-2.4, and a film thickness of 85-97 nm. The metal layer has a refractivity different by 0 to 2.0 from that of the first translucent conductive layer, and has a film thickness of 2-22 nm.

Abstract: A display panel includes: a substrate on which a plurality of feed terminals corresponding to a plurality of pixels are provided; a plurality of pixel electrodes corresponding to the respective pixels; a common electrode common to the pixels; and a plurality of light-emitting layers corresponding to the respective pixels and provided between the pixel electrodes and the common electrode. In plan view, within each of the pixels, the light-emitting layer and the feed terminal do not overlap, feed terminals of each column of pixels are provided in a column, and the common electrode is electrically connected to conductive layers, the conductive layers each having a shape of a line that overlaps a corresponding one of the columns of feed terminals. Accordingly, the display panel achieves a high aperture ratio even with the conductive layers formed therein.

Abstract: A display panel includes: a substrate on which a plurality of feed terminals corresponding to a plurality of pixels are provided; a plurality of pixel electrodes corresponding to the respective pixels; a common electrode common to the pixels; and a plurality of light-emitting layers corresponding to the respective pixels and provided between the pixel electrodes and the common electrode. In plan view, within each of the pixels, the light-emitting layer and the feed terminal do not overlap, feed terminals of each column of pixels are provided in a column, and the common electrode is electrically connected to conductive layers, the conductive layers each having a shape of a line that overlaps a corresponding one of the columns of feed terminals. Accordingly, the display panel achieves a high aperture ratio even with the conductive layers formed therein.

Abstract: A method for manufacturing a light-emitting element. An anode is formed on a main surface of a substrate. A hole-injection layer is formed at least above the anode. At least the hole-injection layer is covered with a protective film. A bank which is provided with an aperture through which a portion of the protective film is exposed, is formed on the protective film by a wet process. The portion of the protective film exposed through the aperture is removed so that a portion of the hole-injection layer is exposed, a light-emitting layer is formed on the hole-injection layer exposed through the aperture, and a cathode is formed above the light-emitting layer. The protective film is resistant to a fluid used during the wet process.

Abstract: A display panel displays images by feeding an electric power individually to each of a plurality of display elements that are two-dimensionally arranged. The plurality of display elements are provided indirectly on a surface of a substrate with an insulating film between the plurality of display elements and the substrate, and the insulating film has one opening in a part thereof corresponding to each at least two of the plurality of display elements that are adjacent to each other. Feed terminals corresponding one-to-one to the at least two display elements are provided on a part of the substrate that is exposed inside the opening so as to share the opening, and the at least two display elements are electrically connected with the respective feed terminals provided in the opening.

Abstract: A resin material layer including photosensitive resin material is formed on an interlayer on an underlayer. By partially exposing and developing the resin material layer using developer in which the resin material layer and the interlayer are soluble, an uncured portion of the resin material layer is removed to form an opening penetrating to the interlayer, and the developer infiltrates into the interlayer via the opening to remove at least surfaces of first and second portions of the interlayer. The first portion corresponds to the opening. The second portion surrounds the first portion. Each bank is formed by heating a remaining portion of the resin material layer to soften an overhanging portion above a space formed by the surface of the second portion being removed, so that the overhanging portion flows downward to fill the space, cover an exposed portion of the interlayer, and contact the underlayer or the interlayer.

Abstract: A device and method improving luminous efficiency and luminescent color in an organic EL display panel used in electronic devices such as televisions or the like by making it easy to adjust the difference in film thickness between layers of different luminescent colors, such as intermediate layers, when the intermediate layers and light-emitting layers are formed by a wet method. By varying by color the volume of a contact hole formed in an interlayer insulation film, which is a lower layer of an organic EL element, the volume of a concavity in each anode plate is adjusted. When ink that includes material for the intermediate layer or the like is sprayed by an inkjet method, the film thickness of the intermediate layer or the like changes in accordance with the amount of ink filing the concavity.

Abstract: An organic light-emitting display panel is provided that improves luminous efficiency and luminescent color by adjusting the difference in film thickness between layers of different luminescent colors, such as intermediate layers, when the intermediate layer and light-emitting layers are formed by a wet method. By varying the film thickness of an interlayer insulation film, which is a lower layer of an organic light-emitting element, the volume of a contact hole is varied by color, thereby adjusting the volume of a concavity in each anode plate. When ink that includes material for the intermediate layer, or like, is sprayed by an inkjet method, the film thickness of the intermediate layer, or like, changes in accordance with the amount of ink filing the concavity. Therefore, by adjusting the difference in volume between concavities of different colors, the difference in film thickness between the intermediate layers, or like, is finely adjusted.

Abstract: A display panel and method of manufacturing a display panel. A plurality of contact holes penetrate through an interlayer insulation film and have wiring lines connecting first electrode plates and second electrode plates with a thin-film transistor layer. The first electrode plates and the second electrode plates each include at least one concavity. The at least one concavity included in each of the first and second electrode plates coincide with the plurality of contact holes. A total volume of the at least one concavity in any of the first electrode plates is larger than a total volume of the at least one concavity in any of the second electrode plates, while a volume of a portion of the first organic functional layer corresponding to any of the first electrode plates at least approximates a volume of the second organic functional layer corresponding to any of the second electrode plates.

Abstract: To provide an organic electroluminescence element including a structure that facilitates manufacturing of a large scale organic EL panel and a manufacturing method thereof, the organic electroluminescence element includes: an anode; a cathode; an organic luminescent layer located between the anode and the cathode; and a hole injection layer located between the anode and the organic luminescent layer. The hole injection layer comprises a mixture of molybdenum oxide and tungsten oxide that contains a molybdenum element in a range of 9 atomic percent to 35 atomic percent.

Abstract: A device and method improving luminous efficiency and luminescent color in an organic EL display panel used in electronic devices such as televisions or the like by making it easy to adjust the difference in film thickness between layers of different luminescent colors, such as intermediate layers, when the intermediate layers and light-emitting layers are formed by a wet method. By varying by color the volume of a contact hole formed in an interlayer insulation film, which is a lower layer of an organic EL element, the volume of a concavity in each anode plate is adjusted. When ink that includes material for the intermediate layer or the like is sprayed by an inkjet method, the film thickness of the intermediate layer or the like changes in accordance with the amount of ink filing the concavity.

Abstract: A resin material layer including photosensitive resin material is formed on an interlayer on an underlayer. By partially exposing and developing the resin material layer using developer in which the resin material layer and the interlayer are soluble, an uncured portion of the resin material layer is removed to form an opening penetrating to the interlayer, and the developer infiltrates into the interlayer via the opening to remove at least surfaces of first and second portions of the interlayer. The first portion corresponds to the opening. The second portion surrounds the first portion. Each bank is formed by heating a remaining portion of the resin material layer to soften an overhanging portion above a space formed by the surface of the second portion being removed, so that the overhanging portion flows downward to fill the space, cover an exposed portion of the interlayer, and contact the underlayer or the interlayer.

Abstract: An organic light-emitting display panel is provided that improves luminous efficiency and luminescent color by adjusting the difference in film thickness between layers of different luminescent colors, such as intermediate layers, when the intermediate layer and light-emitting layers are formed by a wet method. By varying the film thickness of an interlayer insulation film, which is a lower layer of an organic light-emitting element, the volume of a contact hole is varied by color, thereby adjusting the volume of a concavity in each anode plate. When ink that includes material for the intermediate layer, or like, is sprayed by an inkjet method, the film thickness of the intermediate layer, or like, changes in accordance with the amount of ink filing the concavity. Therefore, by adjusting the difference in volume between concavities of different colors, the difference in film thickness between the intermediate layers, or like, is finely adjusted.

Abstract: A display panel and method of manufacturering a display panel. A plurality of contact holes penetrate through an interlayer insulation film and have wiring lines connecting first electrode plates and second electrode plates with a thin-film transistor layer. The first electrode plates and the second electrode plates each include at least one concavity. The at least one concavity included in each of the first and second electrode plates coincide with the plurality of contact holes. A total volume of the at least one concavity in any of the first electrode plates is larger than a total volume of the at least one concavity in any of the second electrode plates, while a volume of a portion of the first organic functional layer corresponding to any of the first electrode plates at least approximates a volume of the second organic functional layer corresponding to any of the second electrode plates.

Abstract: A method for manufacturing a light-emitting element. An anode is formed on a main surface of a substrate. A hole-injection layer is formed at least above the anode. At least the hole-injection layer is covered with a protective film. A bank which is provided with an aperture through which a portion of the protective film is exposed, is formed on the protective film by a wet process. The portion of the protective film exposed through the aperture is removed so that a portion of the hole-injection layer is exposed, a light-emitting layer is formed on the hole-injection layer exposed through the aperture, and a cathode is formed above the light-emitting layer. The protective film is resistant to a fluid used during the wet process.