Abstract: A display device includes a pixel disposed in a display area. The pixel includes a first electrode and a second electrode spaced apart from each other; a light emitting element disposed between the first electrode and the second electrode and including a first end portion and a second end portion; a third electrode disposed on the first end portion of the light emitting element and electrically connecting the first end portion to the first electrode; and a fourth electrode disposed on the second end portion of the light emitting element and electrically connecting the second end portion to the second electrode. An opening is formed in at least one of the first to fourth electrodes and disposed in a first area and a second area that are adjacent to the first end portion and the second end portion of the light emitting element.

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: A display device includes a substrate including a display area and a non-display area; pixels disposed in the display area and including respective light emitting units; a first conductive pattern disposed between the pixels; and a power source line disposed in the non-display area and electrically connected to the first conductive pattern. Each of the light emitting units includes a light emitting element, a first pixel electrode disposed on a first end of the light emitting element, and a second pixel electrode disposed on a second end of the light emitting element. The first conductive pattern and the second pixel electrode are disposed on a same layer.

Abstract: A display device includes: a substrate including first areas and second areas alternately arranged in a first direction in a plane view; a first electrode and a second electrode on the substrate and spaced apart from each other in a second direction crossing the first direction; a first insulation layer on the substrate and covering the first electrode and the second electrode; and a light emitting element on the first insulation layer and electrically connected to the first electrode and the second electrode, the first insulation layer having a first thickness in the first area and a second thickness thicker than the first thickness in the second area, and the light emitting element being located in the first area.

Abstract: A display device includes: a power source line; a plurality of gate lines each extending in a first direction and arranged along a second direction in a plan view; a plurality of pixels connected to the power source line and the gate lines; and a plurality of vertical lines each extending in the second direction and arranged along the first direction in the plan view, wherein the vertical lines include a plurality of gate connection lines and a plurality of dummy lines between the gate connection lines, wherein the gate connection lines connect the gate lines to a gate driver, wherein the dummy lines are connected to the power source line, and wherein a distance between the dummy lines spaced apart from each other with at least one of the gate connection lines interposed therebetween is constant throughout.

Abstract: A display device includes sub-pixels including a light emitting part, and sub-areas on respective sides of the light emitting part in a first direction, a first electrode in the light emitting part and extending in the first direction, and a second electrode extending in the first direction and spaced apart from the first electrode in a second direction crossing the first direction, a first insulating layer on the first electrode and the second electrode, and a light emitting element on the first electrode and the second electrode in the light emitting part, wherein the second electrode includes an electrode stem part extending in the first direction, and electrode branch parts branched from the electrode stem part.

Abstract: The display device may include a substrate; at least one pixel along a first direction on the substrate and including first, second, and third emission areas, in each of which a plurality of light emitting elements are provided; a light blocking pattern corresponding to an area between the first to third emission areas; and a color filter layer including a first color filter pattern provided on the first emission area, a second color filter pattern provided on the second emission area, and a third color filter pattern provided on the third emission area. Here, the pixel may include a first storage capacitor, a second storage capacitor, and a third storage capacitor on the substrate and corresponding to one of the first to third color filter patterns.

Abstract: A display device includes a substrate including a display area including pixel areas and a non-display area adjacent to the display area; and a pixel disposed in each of the pixel areas. The pixel includes a sub-electrode, a first conductive line, and a second conductive line on the substrate; a first insulating layer over the sub-electrode and the first and second conductive lines; first to fourth electrodes on the first insulating layer; a second insulating layer over the first and second electrodes to completely overlap the first and second electrodes, the second insulating layer exposing the third and fourth electrodes; light emitting elements between the first and second electrodes; a first contact electrode on the first electrode; and a second contact electrode on the second electrode.

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: A display device includes a substrate and pixels. The substrate includes: a display area including pixel areas, each including a first area and a second area; and a non-display area enclosing at least one side of the display area. The pixels are disposed on the pixel areas, each pixel including light emitting elements. Each pixel further includes: a pixel circuit part disposed on the first area and including at least one transistor and at least one capacitor; and a display element part disposed on the second area and including an emission area to emit light. Each of the pixel circuit part and the display element part has a multi-layer structure including one or more conductive layers and one or more insulating layers. At least one layer of the pixel circuit part and at least one layer of the display element part are disposed in a same layer.

Abstract: A tiled display device includes an array of a plurality of display panels. Each of the plurality of display panels includes a plurality of pixels constituting a plurality of pixel rows and a plurality of pixel columns, a data distributor disposed between a first pixel of a first pixel row among the plurality of pixel rows and a second pixel of the first pixel row adjacent to the first pixel in a first direction, and a scan driver disposed between the second pixel and a third pixel adjacent to the second pixel in the first direction.

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: A display device includes a substrate. A first electrode, a second electrode, and a third electrode are on the substrate, and are sequentially arranged along a first direction. A first light emitting element is located between the first electrode and the second electrode. A second light emitting element is located between the second electrode and the third electrode. A first contact electrode overlaps the first electrode and one end of the first light emitting element, and is in contact with the first electrode and the one end of the first light emitting element. A second contact electrode overlaps and is in contact with the other end of the first light emitting element. A third contact electrode overlaps and is in contact with the second electrode and the other end of the second light emitting element. The second contact electrode extends while detouring the third contact electrode.

Abstract: A display device includes a display area and a non-display area adjacent to the display area. The display device includes a pixel disposed in the display area; a driving controller disposed in the non-display area, the driving controller controlling driving of the pixel; and a line part having at least a portion disposed in the non-display area, the line part electrically connecting the pixel and the driving controller to each other between the pixel and the driving controller. The non-display area includes a fan-out area disposed between the display area and the driving controller.

Abstract: A display device includes a substrate including a display area having a plurality of pixel areas and a non-display area located at at least one side of the display area; a pixel in each of the pixel areas; and a plurality of fan-out lines in the non-display area to form a first conductive layer. The pixel includes a pixel circuit layer including at least one transistor and a first bridge line and a second bridge line; and a display element layer on the pixel circuit layer. Each of the first and second bridge lines is electrically connected to a corresponding fan-out line from among the fan-out lines.

Abstract: A display device includes a substrate including a display area and a non-display area, a first voltage pattern and a second voltage pattern arranged along a first side of the non-display area, the first voltage pattern and the second voltage pattern being alternately located, a first sub-voltage pattern and a second sub-voltage pattern arranged along a second side opposite the first side of the non-display area, the first sub-voltage pattern and the second sub-voltage pattern being and alternately located, a first voltage extension wire extending along a third side crossing the first side of the non-display area and connected to the first voltage pattern, and a second voltage extension wire extending along a fourth side opposite the third side of the non-display area and connected to the second voltage pattern.

Abstract: A method of testing a display panel including a pixel coupled to first, second, and third power lines, a data line, scan lines, an emission control line, and a test line, the method includes: applying a first power supply voltage to the first power line; applying a test voltage having a turn-on voltage level to the second power line; applying a scan signal having a turn-on voltage level sequentially to the scan lines and an emission control signal having a turn-on voltage level to the emission control line; applying a gate signal to the test line to turn on a test transistor coupled between two electrode of a light emitting element included in the pixel; measuring a sensing voltage output through the data line; and determining whether the pixel is defective, based on a voltage level of the measured sensing voltage.

Abstract: A display device includes: a substrate including a pixel; a scan line for supplying a scan signal to the pixel; a data line for supplying a data signal to the pixel; a first power line for supplying a first driving power source to the pixel; a second power line for supplying a second driving power source to the pixel; and a third power line for supplying a ground voltage to the pixel. The pixel includes: first and second electrodes spaced apart from each other on the substrate; a plurality of light emitting elements, each of the light emitting elements having first and second end portions in a length direction thereof and being arranged between the first electrode and the second electrode; and a first switch electrically connected between the third power line and the first electrode. The first switch is configured to be turned on by a control signal.

Abstract: A display device includes a substrate. A first electrode, a second electrode, and a third electrode are on the substrate, and are sequentially arranged along a first direction. A first light emitting element is located between the first electrode and the second electrode. A second light emitting element is located between the second electrode and the third electrode. A first contact electrode overlaps the first electrode and one end of the first light emitting element, and is in contact with the first electrode and the one end of the first light emitting element. A second contact electrode overlaps and is in contact with the other end of the first light emitting element. A third contact electrode overlaps and is in contact with the second electrode and the other end of the second light emitting element. The second contact electrode extends while detouring the third contact electrode.

Abstract: A display device includes an emission area and a sub-area spaced from the emission area in a first direction, a plurality of electrodes in the emission area and extending in the first direction, the plurality of electrodes being spaced from each other along a second direction crossing the first direction, a first insulating layer on the plurality of electrodes, and a plurality of light emitting elements on the first insulating layer, both ends of the plurality of light emitting elements being on the plurality of electrodes that are spaced from each other along the second direction, wherein the plurality of electrodes include a first electrode including a first portion and a second portion, the second portion of the first electrode having a width measured in the second direction that is smaller than a width of the first portion measured in the second direction.