Micro light-emitting diodes (LED) are distanced from a mirror layer that reflects light emitted by the LEDs to increase the light extraction efficiency of the LEDs. In some embodiments, micro LEDs are electrically coupled to the mirror layer by vias positioned at an end of the LED positioned proximate to the mirror layer. In other embodiments, a conductive layer is positioned adjacent to an electrode of multiple micro LEDs and a pillar contacts the conductive layer at a location where the conductive layer is not positioned adjacent to a micro LED electrode. Vias and pillars allow the mirror height to be increased relative to structures where micro LEDs extend into a mirror layer. Increasing the mirror height can reduce the amount of destructive interference at a release layer caused by reflections of LED-emitted light by the mirror layer when the release layer is ablated via laser irradiation.

A display device includes pixel electrodes disposed on a substrate, at least one light-emitting element disposed on each of the pixel electrodes, a planarization layer disposed on the pixel electrodes and filling a space between the at least one light-emitting element, and a common electrode disposed on the planarization layer and the at least one light-emitting element. Each of the light-emitting elements is arranged perpendicular to a top face of each of the pixel electrodes, at least one of the pixel electrodes includes a protrusion protruding toward an adjacent one of the pixel electrodes, and the protrusion overlaps the light-emitting element in a plan view.

A display device includes pixel electrodes disposed on a substrate, at least one light-emitting element disposed on each of the pixel electrodes, a planarization layer disposed on the pixel electrodes and filling a space between the at least one light-emitting element, and a common electrode disposed on the planarization layer and the at least one light-emitting element. Each of the light-emitting elements is arranged perpendicular to a top face of each of the pixel electrodes, at least one of the pixel electrodes includes a protrusion protruding toward an adjacent one of the pixel electrodes, and the protrusion overlaps the light-emitting element in a plan view.

A display device and a method of fabricating the same is provided. A display device includes first and second pixel circuit units spaced apart from each other, a first pixel electrode on the first pixel circuit unit, a second pixel electrode on the second pixel circuit unit, a first light-emitting element electrically connected to the first pixel electrode, and for emitting first light, a second light-emitting element electrically connected to the second pixel electrode, and for emitting second light, a first pixel connecting electrode between the first pixel electrode and the first light-emitting element, and a second pixel connecting electrode between the second pixel electrode and the second light-emitting element, wherein the first pixel electrode overlaps with the first light-emitting element, and wherein the second pixel electrode does not overlap with the second light-emitting element.

A base member for a light emitting device includes a bottom part and a frame part. The frame part has an upper surface, a lower surface, and a step portion. The frame part has a bonding surface bonded to the bottom part, and defining a planar surface of the step portion at a lower surface side, first and second inner surfaces, a first planar surface defining a planar surface of the step portion at an upper surface side, and first and second electrode layers electrically connected to each other, the second electrode layer being disposed on the first planar surface while the first electrode layer being not disposed on the first planar surface. The step portion extends along an entire periphery of the frame part in a bottom view, and the step portion does not extend along the entire periphery of the frame part in a top view.

A base member for a light emitting device includes a bottom part and a frame part. The frame part has an upper surface, a lower surface, and a step portion. The frame part has a bonding surface bonded to the bottom part, and defining a planar surface of the step portion at a lower surface side, first and second inner surfaces, a first planar surface defining a planar surface of the step portion at an upper surface side, and first and second electrode layers electrically connected to each other, the second electrode layer being disposed on the first planar surface while the first electrode layer being not disposed on the first planar surface. The step portion extends along an entire periphery of the frame part in a bottom view, and the step portion does not extend along the entire periphery of the frame part in a top view.

A light emitting device, includes: a substrate; a light emitting element on the substrate, the light emitting element having a first end portion and a second end portion arranged in a longitudinal direction; one or more partition walls disposed on the substrate, the one or more partition walls being spaced apart from the light emitting element; a first reflection electrode adjacent the first end portion of the light emitting element; a second reflection electrode adjacent the second end portion of the light emitting element; a first contact electrode connected to the first reflection electrode and the first end portion of the light emitting element; an insulating layer on the first contact electrode, the insulating layer having an opening exposing the second end portion of the light emitting element and the second reflection electrode to the outside; and a second contact electrode on the insulating layer.

A light emitting device including a substrate, a first conductivity-type semiconductor layer, a mesa including a second conductivity-type semiconductor layer and an active layer, first and second contact electrodes respectively contacting the first and second conductivity-type semiconductor layers, a passivation layer covering the first and second contact electrodes, the mesa, and including first and second openings, and first and second bump electrodes electrically connected to the first and second contact electrodes through the first and second openings, respectively, in which the first and second bump electrodes are disposed on the mesa, the passivation layer is disposed between the first bump electrode and the second contact electrode, the first contact electrode includes a reflective material, and a portion of the first opening is surrounded with a side surface of the mesa, and another portion of the first opening is not surrounded with the side surface of the mesa.

A light emitting device including a substrate, a first conductivity-type semiconductor layer, a mesa including a second conductivity-type semiconductor layer and an active layer, first and second contact electrodes respectively contacting the first and second conductivity-type semiconductor layers, a passivation layer covering the first and second contact electrodes, the mesa, and including first and second openings, and first and second bump electrodes electrically connected to the first and second contact electrodes through the first and second openings, respectively, in which the first and second bump electrodes are disposed on the mesa, the passivation layer is disposed between the first bump electrode and the second contact electrode, the first contact electrode includes a reflective material, and a portion of the first opening is surrounded with a side surface of the mesa, and another portion of the first opening is not surrounded with the side surface of the mesa.

A display device includes transistors disposed on a substrate, a first protective layer covering the transistors, conductive patterns disposed on the first protective layer, a second protective layer disposed on the conductive patterns, first and second electrodes disposed on the second protective layer, at least one light emitting disposed between the first and second electrodes, and a first contact electrode disposed on the first electrode and contacting an end of at least one light emitting element, and a second contact electrode disposed on the second electrode and contacting another end of the at least one light emitting element. The conductive patterns include first and second conductive patterns respectively overlapping the first and second electrodes. The first electrode is connected to the first conductive pattern. The second protective layer includes an opening hole exposing a portion of the second conductive pattern.