Abstract: According to one embodiment, a motherboard includes inspection pads for adjacent short-circuiting inspection. The motherboard includes a first high-resistance wiring line connecting the inspection pads to each other, a first cut line set to cut out a plurality of display devices from the motherboard, and a second cut line set along an outline shape of each single display device. The inspection pads are each located between the first cut line and the second cut line. The first high-resistance wiring line is disposed across the first cut line and cut along the first cut line before the inspection using the inspection pads. The inspection pads are not connected to each other by the first high-resistance wiring line at the time of the inspection.

Abstract: According to one embodiment, a display device includes a base, a lower electrode, a rib including an aperture, a partition, an organic layer in contact with the lower electrode through the aperture, and an upper electrode. The lower electrode includes first lower electrodes in a first area on and second lower electrodes in a second area. The aperture includes first apertures overlapping with the first lower electrodes and second apertures overlapping with the second lower electrodes. The partition includes a first partition dividing the first apertures and second partitions dividing each of the second apertures. The second aperture is smaller than the first aperture. Each of the second partitions is connected to other second partition via a transparent conductive layer.

Abstract: According to one embodiment, a display device includes a substrate, a circuit layer including a metal-made feed line in a surrounding area, an insulating layer covering the circuit layer, a lower electrode, a rib, a partition above the rib, an upper electrode connected to the partition, an organic layer between the electrodes and a conductive layer connected to the partition. The partition and the conductive layer each includes a metal-made lower portion and an upper portion protruding from a side surface of the lower portion. The lower portion of the conductive layer and the feed line are in contact with each other in the first contact portion in the surrounding area.

Abstract: Provided is a display device including a first dam surrounding the display area, a second dam surrounding the first dam, a first sensor electrode and a second sensor electrode overlapping the display area, a first sensor wiring and a second sensor wiring over the first dam and electrically connected to the first sensor electrode and the second sensor electrode, respectively, a first wiring under the second dam and electrically connected to the first sensor wiring at a first contact portion, and a second wiring under the second dam and electrically connected to the second sensor wiring at a second contact portion.

Abstract: According to one embodiment, a method of manufacturing a display device, includes forming a lower electrode, forming an inorganic insulating layer which covers the lower electrode, forming a partition including a conductive lower part and an upper part on the inorganic insulating layer, forming a resist on the inorganic insulating layer, which is patterned using a photomask comprising an aperture including a pair of first straight portions, a pair of second straight portions, and four arc-shaped corner portions each connecting respective of a first straight portion and a second straight portion adjacent to each other, and forming a rib including a pixel aperture that overlaps the lower electrode by removing a part of the inorganic insulating layer, which is exposed from the resist.

Abstract: According to one embodiment, a display device includes a display area which includes subpixels, and a partition which includes a conductive lower portion and an upper portion which protrudes from a side surface of the lower portion and surrounds each of the subpixels. Each of the subpixels includes a lower electrode, an organic layer which covers the lower electrode, and an upper electrode which covers the organic layer and is in contact with the lower portion of the partition. The display area has a transmissive area located between the lower electrodes of the adjacent two subpixels. Further, the partition surrounds the transmissive area.

Abstract: According to one embodiment, a manufacturing method for a display device includes forming a plurality of lower electrodes, a rib, a partition, a first stacked film including a first organic layer and a first upper electrode, and a first sealing layer. The manufacturing method includes forming a resist individually for each of a plurality of first sub-pixels aligned in a second direction. The manufacturing method includes removing the first sealing layer and the first stacked film using the resists as a mask.

Abstract: According to one embodiment, a display device includes a display area which displays an image, and a partition which includes a conductive lower portion and an upper portion protruding from a side surface of the lower portion and is provided in the display area. The display area has a first area surrounded by the partition. Further, a plurality of first subpixels which are arranged without an intervention of the partition are provided in the first area.

Abstract: According to one embodiment, a mother substrate includes panel portions, a margin portion, and a first partition provided in the margin portion. The first partition includes a first lower portion including an annular side surface, and a first upper portion provided on the first lower portion and including an annular protrusion which protrudes from the side surface. An inner circumferential portion includes, in plan view, a plurality of linear portions and a plurality of corner portions each connecting the adjacent two linear portions. In the linear portions, the side surface and an end portion of the protrusion linearly extend. In the corner portions, the side surface and the end portion of the protrusion are formed into an arcuate shape.

Abstract: According to one embodiment, a display device includes a substrate, an insulating layer disposed above the substrate, a lower electrode disposed above the insulating layer, a rib formed of an inorganic material, including a pixel aperture overlapping the lower electrode and covering a peripheral edge of the lower electrode, a partition disposed above the rib, an upper electrode opposing the lower electrode, and an organic layer disposed between the lower electrode and the upper electrode, which emits light in response to a potential difference between the lower electrode and the upper electrode. The peripheral edge of the lower electrode is located between the insulating layer and the partition in a thickness direction of the insulating layer.

Abstract: According to one embodiment, a display device includes first to third pixels arranged in a first direction, and a partition surrounding the pixels. The partition includes a first partition between the first and second pixels extending in a second direction along the first pixel, a second partition between the first and second pixels extending in the second direction along the second pixel, and a third partition between the second and third pixels extending in the second direction. The first and second partitions are spaced apart from each other in the first direction via a slit. The third partition is continuously formed between the second and third pixels.

Abstract: According to one embodiment, a display device includes a display area which includes a plurality of subpixels, a plurality of lower electrodes provided in the subpixels, respectively, a plurality of organic layers which cover the lower electrodes, respectively, and emit light based on applied voltage, and a common electrode which covers the organic layers and overlaps the display area. Further, the common electrode has a slit in which at least an end reaches an outer edge of the common electrode.

Abstract: According to one embodiment, a motherboard for display device includes a plurality of panel portions each including a display area where a plurality of display elements are arranged, a margin area around the plurality of panel portions and an alignment mark arranged in the margin area. The panel portion includes an organic insulating layer, a lower electrode, an upper electrode, and an organic layer that emits light in accordance with a potential difference between the lower electrode and the upper electrode. The organic insulating layer extends from the display area to the margin area. The organic insulating layer arranged in the margin area and an inorganic insulating layer covering the organic insulating layer are arranged above the alignment mark.

Abstract: According to one embodiment, a display device includes a substrate, an insulating layer, a lower electrode, a rib, a partition, an upper electrode, an organic layer, a dam structure, and a conductive layer. The dam structure includes at least one convex portion disposed in a peripheral area between the end portion of the substrate and a display area. The upper electrode and the organic layer are also disposed in the peripheral area. End portions of the upper electrode and the organic layer are located between the dam structure and the display area in plan view. An end portion of the conductive layer is located between the end portions of the upper electrode and the organic layer and the display area in plan view, and is covered by the upper electrode and the organic layer.

Abstract: A display device includes at least one pixel including a plurality of sub-pixels, and a linear sensor electrode extending along a boundary of the plurality of sub-pixels and surrounding a periphery of the at least one pixel. The sensor electrode has at least one cut-off portion at the boundary of the plurality of sub-pixels. The sensor electrode can include a first sensor electrode extending along the boundary of a plurality of sub-pixels and a second sensor electrode that surrounds the periphery of at least one pixel continuous from the first sensor electrode, and the cut-off portion can be located at the boundary of the first sensor electrode with the second sensor electrode.

Abstract: According to one embodiment, a mother substrate for a display device includes an inspection portion. The inspection portion includes first, second, third and fourth pads, a first line portion connected to the first pad, a second line portion connected to the second pad, a third line portion connected to the third pad and the fourth pad and including a middle portion, a first partition connected to the middle portion, a second partition surrounding the first partition, an organic layer provided between the first partition and the second partition, and an upper electrode which covers the organic layer. The upper electrode is in contact with a lower portion of the first partition and a lower portion of the second partition.

Abstract: According to one embodiment, a display device includes a substrate, a pixel circuit, an insulating layer including a contact hole, a lower electrode connected to the pixel circuit via the contact hole, an upper electrode, an organic layer between the lower electrode and the upper electrode, a rib formed of an inorganic material and including an aperture, and a partition above the rib. The organic layer includes a first organic layer in contact with the lower electrode via the aperture and a second organic layer located on the partition and spaced apart from the first organic layer. The partition overlaps an entire of the contact hole in plan view.

Abstract: According to one embodiment, a display device includes a substrate, an insulating layer, a lower electrode, a rib including an aperture and covering a periphery of the lower electrode, a partition above the rib, an upper electrode being in contact with the partition, and an organic layer between the electrodes. The organic layer includes a first organic layer that is in contact with the lower electrode through the aperture, and a second organic layer on the partition. At least a part of the periphery of the lower electrode is located between the insulating layer and the partition in a thickness direction of the insulating layer.

Abstract: According to one embodiment, a display device includes a base, a display unit containing pixels, a power supply circuit, a touch controller and a switching circuit disposed between the display unit, the power supply circuit and the touch controller. The pixels each includes a pixel circuit and a display element including a lower electrode connected to the pixel circuit, an upper electrode disposed to oppose the lower electrode and an organic layer including a light-emitting layer disposed between the lower electrode and the upper electrode. The upper electrode is connected to the switching circuit, and the switching circuit selectively switches between connecting the upper electrode to the power supply circuit and connecting the upper electrode to the touch controller.

Abstract: According to one embodiment, a display device includes a substrate, a circuit layer including a metal-made feed line in a surrounding area, an insulating layer covering the circuit layer, a lower electrode, a rib, a partition above the rib, an upper electrode connected to the partition, an organic layer between the electrodes and a conductive layer connected to the partition. The partition and the conductive layer each includes a metal-made lower portion and an upper portion protruding from a side surface of the lower portion. The lower portion of the conductive layer and the feed line are in contact with each other in the first contact portion in the surrounding area.