Abstract: A light emitting device comprises: a substrate; a first electrode on the substrate, the first electrode having holes, and having inclined surfaces along the peripheries of the holes; second electrodes on the substrate, each of which is in a respective one of the holes of the first electrode; and light emitting elements between the first electrode and the second electrodes, the light-emitting elements being electrically connected to the first electrode and the second electrodes.

Abstract: A display device and head mounted display device including the same are provided. The display device includes a first single-crystal semiconductor substrate, first transistors above the first single-crystal semiconductor substrate, and a second single-crystal semiconductor substrate above the first single-crystal semiconductor substrate, having an area that is greater than an area of the first single-crystal semiconductor substrate in plan view, and including a display area in which light-emitting elements are located, and a non-display area around the display area in plan view, wherein the second single-crystal semiconductor substrate defines first through holes defined in the display area and having a first conductive via electrically connected to the light-emitting element, second through holes defined in the display area and having a second conductive via electrically connected to the first transistor, and third through holes defined in the non-display area and having a third conductive via therein.

Abstract: According to an embodiment of the disclosure, a display device includes a display panel having a display area and a non-display area; a plurality of pixels disposed in the display area; a light-emitting element disposed in each of the plurality of pixels; a driving transistor disposed in each of the plurality of pixels and electrically connected to the light-emitting element; and a common circuit disposed in the non-display area and electrically connected to a node between the light-emitting element and the driving transistor.

Abstract: A display device includes a display panel having a display area and a non-display area; a plurality of pixels disposed in the display area; a light emitting element disposed in each of the plurality of pixels; a driving transistor disposed in each of the plurality of pixels and connected to the light emitting element; and a common circuit disposed in the non-display area and connected to at least one of the driving transistor and the light emitting element of each of the plurality of pixels.

Abstract: There are provided a sub-pixel and a display device including the same, which can increase the capacitance of a capacitor. The sub-pixel may include a first capacitor including a first electrode connected to a first power line and a second electrode connected to a second node. The second electrode may be directly connected to a semiconductor layer of a first transistor, a semiconductor layer of a third transistor, and a semiconductor layer of a fourth transistor.

Abstract: A display device includes a pixel component including scan lines, data lines, and pixels electrically connected to the scan lines and the data lines, and defining pixel columns and pixel rows, a data driver disposed on a side of the pixel component, and a scan driver disposed on the side of the pixel component. The pixel component includes sub-scan lines, and dummy lines. Each scan line may be electrically connected to the sub-scan lines by contacts. The contacts are divided into contact groups having a same arrangement. The pixel component is divided into pixel blocks corresponding to the contact groups. Each pixel block includes first and second area divided by contact group. The first area is closer to the scan driver than the second area. The pixel component further includes supplementary power lines spaced apart from the respective sub-scan lines.

Abstract: A display device includes: a base layer; a pixel circuit layer on the base layer; and a display element layer on the pixel circuit layer. The pixel circuit layer includes a lens pattern at a recess between the display element layer and the base layer, the display element layer includes a light emitting element, and at least a portion of the light emitting element overlaps with the lens pattern.

Abstract: A display device and a mobile electronic device including the same are provided. The display device includes: a pixel defining layer; a first electrode located in an opening of the pixel defining layer; a wiring including: a first wiring extending in a first direction, and having a first length in a display area; and a second wiring having a second length shorter than the first length; an intermediate layer covering the first electrode at the opening, a portion of the intermediate layer being disconnected in an upper portion of the wiring; a second electrode covering the intermediate layer in the opening; and pattern wirings connected to the wirings in a non-display area and including a third wiring connected to the first wiring and having a third length, and a fourth wiring connected to the second wiring and having a fourth length longer than the third length.

Abstract: A display device includes: a substrate including a non-display area and a display area; sub-pixels in the display area; and metal lines traversing the non-display area and the display area in a first direction. Each of the metal lines extends in the first direction to not overlap with emission areas of the sub-pixels, and includes metal patterns protruding in a direction crossing the first direction between the emission areas.

Abstract: A display device according to some embodiments includes a substrate, a first power line extending in a first direction on the substrate, and configured to transmit a first alignment signal or a first driving voltage, a second power line extending in the first direction on the substrate, and configured to transmit a second alignment signal or a second driving voltage, a first electrode extending in a second direction that is substantially perpendicular to the first direction, configured to receive the first alignment signal or the first driving voltage, and electrically connected to the first power line, a second electrode spaced apart from the first electrode, extending in the second direction, configured to receive the second alignment signal or the second driving voltage, and electrically connected to the second power line, and a light emitting element between the first electrode and the second electrode.

Abstract: The present disclosure relates to a display device, and more particularly to a display device capable of repairing transistors and an optical device including the same. According to one or more embodiments of the present disclosure, a display device including: a main pixel including a light emitting element, and a main transistor; and an auxiliary pixel adjacent to the main pixel, the auxiliary pixel including an auxiliary transistor having same characteristics as the main transistor.

Abstract: The present disclosure relates to a display device, and more particularly, to a display device capable of reducing or minimizing or reducing a dead space area. According to one or more embodiments of the present disclosure, a display device including: a substrate having a display area and a non-display area; a signal transmission line including a signal line in the display area of the substrate and a fan-out line extending from the signal line and in the non-display area of the substrate; and a plurality of pixels in the display area of the substrate, wherein a plurality of signal transmission lines include the signal transmission line and are respectively connected to the plurality of pixels, and the plurality of signal transmission lines are on different layers on the substrate.

Abstract: A display device includes a light-emitting diode including a first conductivity-type semiconductor, an active layer, and a second conductivity-type semiconductor; a first voltage line to which a first voltage is applied; a second voltage line to which a second voltage is applied; a first transistor including a source electrode electrically connected to the first voltage line and a drain electrode electrically connected to a first electrode of the light-emitting diode and to the first conductivity-type semiconductor; a second transistor including a drain electrode electrically connected to a gate electrode of the first transistor and a source electrode electrically connected to a data line to apply a data signal; a capacitor electrically connected to the gate electrode of the first transistor and the first electrode; and a third transistor including a source electrode electrically connected to the second voltage line and a drain electrode electrically connected to the first electrode.

Abstract: The present disclosure relates to a display device, and more particularly, to a display device capable of improving the holding force of a spacer. The display device may include a substrate; a transistor on the substrate; a first electrode connected to the transistor, and a spacer disposed on the first electrode, wherein the spacer overlaps a connection portion between the transistor and the first electrode.

Abstract: A pixel is disclosed that includes: a substrate; a pixel circuit disposed on the substrate and including at least one transistor and at least one capacitor; a first contact metal disposed on the substrate and to which a constant voltage is applied; an inorganic layer covering the first contact metal; a first pixel electrode disposed on the inorganic layer and electrically connected to the pixel circuit; a pixel defining film disposed on the first pixel electrode; a second contact metal disposed on the pixel defining film and electrically connected to the first contact metal; a separator disposed on the second contact metal; an organic light emitting portion disposed on the first pixel electrode; and a second pixel electrode disposed on the organic light emitting portion and connected to the second contact metal.

Abstract: The present disclosure relates to a display device, and more particularly, to a display device capable of making resonance distances different from each other according to a wavelength of light to be emitted from each pixel while simplifying process steps, a manufacturing method of the display device, and an optical device including the display device. A display device comprises: a substrate; a bank disposed on the substrate and defining a plurality of emission areas; a plurality of pixel electrodes disposed in the plurality of emission areas; and at least one stepped electrode disposed between a pixel electrode of at least one emission area and the substrate. In the respective emission areas, the numbers of stepped electrodes between the respective pixel electrodes and the substrate are different from each other.

Abstract: A pixel circuit layer of a display device is on a base layer and includes conductive patterns configuring at least one of a transistor, a capacitor, or a signal line. A first electrode and a second electrode are on the pixel circuit layer and are spaced from each other. A bank is on the first electrode and the second electrode and includes an opening. Light emitting elements are between the first electrode and the second electrode in the opening of the bank. In the opening of the bank, a space between the first electrode and the second electrode that are spaced from each other by a distance corresponding to a length of the light emitting elements is defined as a lane in which the light emitting elements are located. In a plan view, the lane does not overlap conductive patterns of the pixel circuit layer.

Abstract: A liquid crystal display includes a display substrate which includes a plurality of pixel areas and is curved in a first direction, an opposite substrate which faces the display substrate, is coupled to the display substrate, and is curved along the display substrate, and a liquid crystal layer disposed between the display substrate and the opposite substrate, where a plurality of domains are defined in each of the plurality of pixel areas, directions in which liquid crystal molecules of the liquid crystal layer are aligned are different from each other in at least two domains among the plurality of domains, and the plurality of domains is arranged in a second direction crossing the first direction.

Abstract: A display device includes a driving element layer on a substrate, a wiring layer on the driving element layer and including a power supply wiring, and a light emitting element layer disposed on the wiring layer. The light emitting element layer includes a pixel defining layer defining openings for pixels, a first electrode in each opening, a heating wiring on the pixel defining layer around each opening, a connection electrode connecting the heating wiring and the power supply wiring through a contact hole extending through the wiring layer and the pixel defining layer, an intermediate layer covering the first electrode in the pixels and the pixel defining layer between the pixels, and including a disconnected portion on the pixel defining layer adjacent to the heating wiring, and a second electrode continuously disposed on the intermediate layer in the openings for the pixels and between the pixels.

Abstract: The present disclosure relates to a display device, and more particularly to a display device capable of repairing a transistor. According to an embodiment of the disclosure, a display device comprising: a pixel comprising a light emitting element and a pixel circuit; and a signal line connected to the pixel, wherein the pixel circuit comprises: a first main transistor connected between a driving voltage line and an anode electrode of the light emitting element; a second main transistor connected between a data line and a gate electrode of the first main transistor; a third main transistor connected between the driving voltage line and a source electrode of the first main transistor; a fourth main transistor connected between a drain electrode of the first main transistor and a common voltage line; and one auxiliary transistor disposed adjacent to at least one of the first to fourth main transistors.