A pixel includes a light-emitting diode, a first transistor connected between a first voltage line and the light-emitting diode, and configured to control a current supplied to the light-emitting diode, a second transistor connected between a data line and a first node connected to a first terminal of the first transistor, and including a 2-1 transistor connected between the data line and a fourth node, and a 2-2 transistor in series with the 2-1 transistor and connected between the fourth node and the first node, a third transistor connected between a second node connected to a gate of the first transistor and a third node connected to a second terminal of the first transistor, a fifth transistor connected between the first voltage line and the first node, and a sixth transistor connected between the third node and the light-emitting diode.

A method for fabricating a single pixel multi-color micro light-emitting diode device for a display panel comprises providing a substrate supporting a pixel driver, forming a metal bonding layer on top of the substrate, fabricating a first LED structure layer on top of the metal bonding layer, and fabricating a second LED structure layer on top of the first LED structure layer. The method further includes coating a first-type electrode to contact a lower portion of the first LED structure layer, a lower portion of the second LED structure layer, and the metal bonding layer, respectively. The first-type electrode electrically connects the pixel driver to the lower portion of the first LED structure layer and the lower portion of the second LED structure layer through the metal bonding layer.

A display device including a display area and a non-display area formed around the display area comprises a substrate, a pixel circuit layer disposed on the substrate, and including a plurality of sub-pixel circuits disposed in the display area, a plurality of first conductive connectors disposed on the pixel circuit layer, and a display element layer disposed on the first conductive connectors. The display element layer may include a plurality of light emitting elements disposed in the display area, electrically connected to the sub-pixel circuits through the first conductive connectors disposed in the display area and configured to emit light in response to signals applied from the sub-pixel circuits, and a plurality of dummy light emitting elements disposed in the non-display area. The light emitting elements and the dummy light emitting elements may include a same material.

The light emitting diode display apparatus comprises a pixel disposed on a substrate and configured to display an image. The pixel includes a first light emitting portion configured to connect with a first gate line disposed in a first direction, a data line disposed in a second direction which is perpendicular to the first direction, and a first driving power line which is parallel to the data line, a second light emitting portion configured to connect a second gate line which is parallel to the first gate line, the data line, and the first driving power line, a common connection pattern configured to connect with the first light emitting portion and the second light emitting portion in common, and a third light emitting portion configured to connect between the second driving power line and the common connection pattern. Some of the common connection pattern is configured to overlap with the second driving power line.

A display device includes a lower substrate, a bonding electrode disposed on the lower substrate, and a light emitting element disposed on the bonding electrode. The bonding electrode includes a first bonding metal layer and a second bonding metal layer sequentially disposed on the lower substrate, each including a bonding metal, a third bonding metal layer disposed between the first bonding metal layer and the second bonding metal layer, and including the bonding metal, a first thin film layer disposed between the first bonding metal layer and the third bonding metal layer, and a second thin film layer disposed between the second bonding metal layer and the third bonding metal layer, and the first thin film layer and the second thin film layer include a material with an atomic volume that is greater than or equal to about 80% of an atomic volume of the bonding metal.

A display device includes a lower substrate, a bonding electrode disposed on the lower substrate, and a light emitting element disposed on the bonding electrode. The bonding electrode includes a first bonding metal layer and a second bonding metal layer sequentially disposed on the lower substrate, each including a bonding metal, a third bonding metal layer disposed between the first bonding metal layer and the second bonding metal layer, and including the bonding metal, a first thin film layer disposed between the first bonding metal layer and the third bonding metal layer, and a second thin film layer disposed between the second bonding metal layer and the third bonding metal layer, and the first thin film layer and the second thin film layer include a material with an atomic volume that is greater than or equal to about 80% of an atomic volume of the bonding metal.

A light emitting element includes a first semiconductor layer doped with an n-type dopant, a second semiconductor layer disposed on the first semiconductor layer and doped with a p-type dopant, an active layer disposed between the first semiconductor layer and the second semiconductor layer, an electrode layer disposed on the second semiconductor layer, and an insulating film surrounding at least a side surface of the active layer. The first semiconductor layer has a diameter in a range of about 0.5 m to about 10 m, and the light emitting element has an external quantum efficiency greater than or equal to about 23%.

A display device includes: a first subpixel; a second subpixel; a pixel circuit layer including a pixel circuit; a first subpixel area formed by the first subpixel; a second subpixel area formed by the second subpixel; a 1-1 light-emitting element on the pixel circuit layer, a 1-2 light-emitting element on the 1-1 light-emitting element, and a 1-3 light-emitting element on the 1-2 light-emitting element, wherein the 1-1 light-emitting element, the 1-2 light-emitting element, and 1-3 light-emitting element are in the first sub-pixel area; and a 2-1 light-emitting element on the pixel circuit layer, a 2-2 light-emitting element on the 2-1 light-emitting element, and a 2-3 light-emitting element on the 2-2 light-emitting element, wherein the 2-1 light-emitting element, the 2-2 light-emitting element, and the 2-3 light-emitting element are in the second subpixel area, wherein the 1-3 light-emitting element is not electrically connected to the pixel circuit.

A display device includes pixels including light-emitting elements disposed in each emission area. Each of the pixels includes at least one array including the light-emitting elements and disposed in the emission area, and a number of the light-emitting elements disposed in each of arrays of the pixels is greater than aa minimum number of the light-emitting elements in the each of the arrays having a normal distribution or Poisson distribution.

A display device, a tiled display device including the same, and an electronic device including the display device are provided. The display device including a substrate, a first pad electrode on the substrate, a second pad electrode spaced from the first pad electrode on the substrate, a light emitting element including a first electrode connected to the first pad electrode and a second electrode connected to the second pad electrode, a first power line spaced from the first pad electrode on the substrate, connected to a first side of the second pad electrode, and configured to receive a first source voltage, and a pad light blocking pattern overlapping a first gap between the first pad electrode and the first power line and a second gap between the second pad electrode and the first power line.