Abstract: A display device includes: a display area and a non-display area; anode electrodes in the display area; an inorganic insulating layer on the anode electrodes; a bank structure on the inorganic insulating layer, and including openings overlapping with the anode electrodes; light emitting layers on the anode electrodes and in the openings; cathode electrodes on the light emitting layers and in the openings; a first power line in the non-display area; and a power connection electrode including through portions partially overlapping with the first power line, and between the first power line and the display area. The bank structure includes: hole patterns on the power connection electrode in the non-display area, and overlapping with the through portions; a first bank layer; and a second bank layer on the first bank layer. The second bank layer includes a tip protruding from a sidewall of the first bank layer.

Abstract: A display device includes: a substrate; a transistor on the substrate; a light-emitting device connected to the transistor; an encapsulation layer on the light-emitting device; a sensing electrode on the encapsulation layer; a first insulating layer on the sensing electrode and including an opening; a second insulating layer on the encapsulation layer and the first insulating layer; and a third insulating layer between the first insulating layer and the second insulating layer, wherein a refractive index of the second insulating layer is greater than a refractive index of the first insulating layer.

Abstract: A display device including a pixel circuit, an insulation layer covering the pixel circuit, an etching prevention layer disposed on the insulation layer, a first guide layer, a second guide layer, a first electrode, a second electrode, and a light emitting element. The first guide layer and the second guide layer may be disposed on the etching prevention layer and spaced apart from each other. The first electrode may be disposed on the first guide layer and electrically connected to the pixel circuit. The second electrode may be disposed on the first guide layer and insulated from the first electrode. The light emitting element may be in contact with the top surface of the etching prevention layer, disposed between the first guide layer and the second guide layer on a plane, and electrically connected to the first electrode and the second electrode.

Abstract: A display device includes a first substrate including a display area and a non-display area, first banks spaced apart from each other in the display area and in the non-display area on the first substrate, electrodes spaced apart from each other on the first banks in the display area, dummy electrodes spaced apart from each other on the first banks in the non-display area, a first pattern between the electrodes in the display area, a second pattern between the dummy electrodes in the non-display area, a first light emitting element on the first pattern, a second light emitting element on the second pattern, contact electrodes respectively on the electrodes in the display area to contact one end of the first light emitting element, and dummy contact electrodes respectively on the dummy electrodes in the non-display area to contact one end of the second light emitting element.

Abstract: Provided is a display device including a substrate, a first electrode disposed on the substrate, a second electrode disposed on the substrate and spaced apart from the first electrode, a plurality of first sub-insulating layers extending in a first direction, disposed on the substrate and on the first and second electrodes, and arranged in a second direction crossing the first direction, and a plurality of light emitting elements disposed between the first sub-insulating layers and electrically connected to the first electrode and the second electrode.

Abstract: A display device includes a pixel circuit, a first insulating layer covering the pixel circuit, a first electrode disposed on the first insulating layer, a second electrode disposed on the first insulating layer and spaced apart from the first electrode in a first direction, and a light emitting element electrically connected to the first electrode and the second electrode and disposed between the first electrode and the second electrode. A recess is provided in a first region of the first insulating layer between the first electrode and the second electrode when viewed in a plan view, and a width of the recess in the first direction is greater than a length of the light emitting element in the first direction. The first electrode and the second electrode do not overlap the recess when viewed in a plan view.

Abstract: A display device includes a plurality of sub-pixels disposed on a display area of the display device and including a first electrode, a light emitting layer, and a second electrode, a pixel-defining layer defining emission areas of the plurality of sub-pixels, respectively, an organic planarization layer disposed on the pixel-defining layer and comprising one or more valleys overlapping a first area in a plan view and at least one protrusion overlapping a second area in a plan view, and a high-refractive planarization layer disposed on the organic planarization layer. The first area is located at an edge of the display area. A second area is located in a non-display area of the display device.

Abstract: Provided is a display device including a substrate, a first electrode disposed on the substrate, a second electrode disposed on the substrate and spaced apart from the first electrode, a plurality of first sub-insulating layers extending in a first direction, disposed on the substrate and on the first and second electrodes, and arranged in a second direction crossing the first direction, and a plurality of light emitting elements disposed between the first sub-insulating layers and electrically connected to the first electrode and the second electrode.

Abstract: An optical sensor includes: a sensing unit including a first sensing electrode, a second sensing electrode spaced apart from the first sensing electrode, and a sensing layer between the first sensing electrode and the second sensing electrode, the sensing layer containing amorphous silicon and germanium (Ge) ions impregnated in the amorphous silicon; and an optical pattern unit on the sensing unit and including a light shielding pattern and a plurality of transmission patterns in the light shielding pattern, wherein the sensing layer includes a first region, a second region, and a third region sequentially arranged from a boundary between the second sensing electrode and the sensing layer toward the first electrode, and a concentration of the germanium (Ge) ions in the amorphous silicon is relatively higher in the second region than in the first region and the third region.

Abstract: Provided is a display device including a substrate, a first electrode disposed on the substrate, a second electrode disposed on the substrate and spaced apart from the first electrode, a plurality of first sub-insulating layers extending in a first direction, disposed on the substrate and on the first and second electrodes, and arranged in a second direction crossing the first direction, and a plurality of light emitting elements disposed between the first sub-insulating layers and electrically connected to the first electrode and the second electrode.

Abstract: A display device includes a first electrode and a second electrode disposed on a substrate and spaced part from each other in a first direction. A light emitting element is disposed between the first electrode and the second electrode. A third electrode is disposed on the first electrode and electrically contacts an end portion of the light emitting element. A fourth electrode is disposed on the second electrode and electrically contacts another end portion of the light emitting element. A side of the third electrode and a side of the first electrode are located on a first virtual line substantially perpendicular to the substrate. A side of the fourth electrode facing the side of the third electrode and the side of the second electrode are located on a second virtual line substantially perpendicular to the substrate.

Abstract: A display device includes a substrate, a data conductive layer on the substrate and including a first voltage line, a via layer on the data conductive layer, a light emitting element on the via layer, a first contact electrode on the light emitting element and contacting a first end of the light emitting element, and a second contact electrode on the light emitting element and contacting a second end of the light emitting element, wherein the second contact electrode is electrically connected to the first voltage line through a first contact hole penetrating the via layer.

Abstract: A display device including a pixel circuit, an insulation layer covering the pixel circuit, an etching prevention layer disposed on the insulation layer, a first guide layer, a second guide layer, a first electrode, a second electrode, and a light emitting element. The first guide layer and the second guide layer may be disposed on the etching prevention layer and spaced apart from each other. The first electrode may be disposed on the first guide layer and electrically connected to the pixel circuit. The second electrode may be disposed on the first guide layer and insulated from the first electrode. The light emitting element may be in contact with the top surface of the etching prevention layer, disposed between the first guide layer and the second guide layer on a plane, and electrically connected to the first electrode and the second electrode.

Abstract: A display device includes: a first alignment electrode and a second alignment electrode on a substrate, the first and second alignment electrodes extending in a first direction and being spaced apart from each other; an amorphous silicon layer on the first alignment electrode and the second alignment electrode, the amorphous silicon layer having an insulating portion covering the first alignment electrode and an electrode portion covering the second alignment electrode, the electrode portion of the amorphous silicon layer including an N-type dopant; a light emitting element on the amorphous silicon layer, one end of the light emitting element being on the insulating portion and another end of the light emitting element contacting the electrode portion of the amorphous silicon layer; a first insulating layer on the light emitting element and extending in the first direction; and a first electrode contacting the one end of the light emitting element.

Abstract: A display apparatus includes a base substrate including a display region in which an image is displayed and a peripheral region that is a non-display region adjacent to the display region, a plurality of pixels disposed on the base substrate in the display region, each of the pixels including a thin film transistor that includes an oxide semiconductor pattern, a data driver disposed in the peripheral region and configured to provide a data voltage to the pixels, and a plurality of test patterns disposed on the base substrate in the peripheral region, each of the test patterns including a test thin film transistor that includes a test oxide semiconductor pattern.

Abstract: A display device includes a first substrate including a display area and a non-display area, first banks spaced apart from each other in the display area and in the non-display area on the first substrate, electrodes spaced apart from each other on the first banks in the display area, dummy electrodes spaced apart from each other on the first banks in the non-display area, a first pattern between the electrodes in the display area, a second pattern between the dummy electrodes in the non-display area, a first light emitting element on the first pattern, a second light emitting element on the second pattern, contact electrodes respectively on the electrodes in the display area to contact one end of the first light emitting element, and dummy contact electrodes respectively on the dummy electrodes in the non-display area to contact one end of the second light emitting element.

Abstract: A display device includes a pixel circuit, a first insulating layer covering the pixel circuit, a first electrode disposed on the first insulating layer, a second electrode disposed on the first insulating layer and spaced apart from the first electrode in a first direction, and a light emitting element electrically connected to the first electrode and the second electrode and disposed between the first electrode and the second electrode. A recess is provided in a first region of the first insulating layer between the first electrode and the second electrode when viewed in a plan view, and a width of the recess in the first direction is greater than a length of the light emitting element in the first direction. The first electrode and the second electrode do not overlap the recess when viewed in a plan view.

Abstract: A display device including a pixel circuit, an insulation layer covering the pixel circuit, an etching prevention layer disposed on the insulation layer, a first guide layer, a second guide layer, a first electrode, a second electrode, and a light emitting element. The first guide layer and the second guide layer may be disposed on the etching prevention layer and spaced apart from each other. The first electrode may be disposed on the first guide layer and electrically connected to the pixel circuit. The second electrode may be disposed on the first guide layer and insulated from the first electrode. The light emitting element may be in contact with the top surface of the etching prevention layer, disposed between the first guide layer and the second guide layer on a plane, and electrically connected to the first electrode and the second electrode.

Abstract: A display device includes a pixel circuit, a first insulating layer covering the pixel circuit, a first electrode disposed on the first insulating layer, a second electrode disposed on the first insulating layer and spaced apart from the first electrode in a first direction, and a light emitting element electrically connected to the first electrode and the second electrode and disposed between the first electrode and the second electrode. A recess is provided in a first region of the first insulating layer between the first electrode and the second electrode when viewed in a plan view, and a width of the recess in the first direction is greater than a length of the light emitting element in the first direction. The first electrode and the second electrode do not overlap the recess when viewed in a plan view.

Abstract: An optical sensor includes: a sensing unit including a first sensing electrode, a second sensing electrode spaced apart from the first sensing electrode, and a sensing layer between the first sensing electrode and the second sensing electrode, the sensing layer containing amorphous silicon and germanium (Ge) ions impregnated in the amorphous silicon; and an optical pattern unit on the sensing unit and including a light shielding pattern and a plurality of transmission patterns in the light shielding pattern, wherein the sensing layer includes a first region, a second region, and a third region sequentially arranged from a boundary between the second sensing electrode and the sensing layer toward the first electrode, and a concentration of the germanium (Ge) ions in the amorphous silicon is relatively higher in the second region than in the first region and the third region.