A display device includes a display element layer on a substrate, the display element layer includes an anode electrode and a cathode electrode spaced apart on the substrate, an overcoat pattern on the anode electrode, a light emitting element on the overcoat pattern and including a first end portion adjacent to the overcoat pattern and a second end portion spaced apart from the first end portion, a first transparent electrode layer on the overcoat pattern and electrically connecting the anode electrode to the first end portion of the light emitting element, at least one insulating layer on the first transparent electrode layer and the cathode electrode, and a second transparent electrode layer on the at least one insulating layer and electrically connecting the cathode electrode to the second end portion of the light emitting element.

A display device includes a circuit layer, a display element layer disposed on the circuit layer, and a light control layer disposed on the display element layer. The display element layer may include a first light-emitting element, a second light-emitting element spaced apart from the first light-emitting element in a first direction perpendicular to a thickness direction, a pixel-defining film having first and second pixel openings defined therein, and an organic layer disposed between the circuit layer and the pixel-defining film. The light control layer may include a transmission part having an opening defined therein, and a light blocking part disposed to fill the opening. The first light-emitting element may be disposed on a same layer as the organic layer, and the second light-emitting element may be disposed above the organic layer.

A display device and a method of manufacturing the display device are provided. A display device includes a connection electrode disposed on a substrate, light emitting elements disposed on the connection electrode and extending in the thickness direction of the substrate, a first insulating layer surrounding a side and an upper surface of the light emitting elements, a second insulating layer disposed on the first insulating layer disposed on the upper surface of the light emitting elements and a common electrode disposed on the upper surface of the light emitting elements, the common electrode is electrically connected to the light emitting elements through a through hole that penetrates the first insulating layer and the second insulating layer to expose the upper surface of the light emitting elements.

A display device a method for manufacturing the same and the electronic device are provided. The display device includes a substrate, connection electrodes above the substrate, light-emitting elements respectively above the connection electrodes, and including a semiconductor stack including a first semiconductor layer, an active layer, and a second semiconductor layer, an etch-stop layer above the semiconductor stack, and an insulating layer surrounding a side surface of the semiconductor stack in plan view, and having one end substantially level with a top surface of the etch-stop layer, and a common electrode above the light-emitting elements.

A display device includes a lower substrate, light emitting elements disposed on the lower substrate, a passivation layer covering side surfaces of the light emitting elements, an insulating layer disposed on the passivation layer and including a groove surrounding the light emitting elements, and a reflective film disposed on the groove and surrounding the side surfaces of the light emitting elements.

A display device includes a substrate, a pixel electrode disposed on the substrate, an organic layer disposed on the pixel electrode, a light emitting element disposed on the organic layer, including a semiconductor stack, a first protective layer, a contact electrode, and a second protective layer, a connection electrode connecting the light emitting element and the pixel electrode, wherein the first protective layer is an insulating protective layer, the second protective layer is a conductive protective layer, wherein the connection electrode and the second protective layer are etchable with the same etchant.

A micro light-emitting display apparatus and a method of manufacturing the same are provided. The micro light-emitting display apparatus may include a plurality of light-emitting stack structures spaced apart from each other on a backplane substrate, the plurality of light-emitting stack structures may have different heights from each other and may be configured to emit light of different wavelengths, and light may only be emitted from a light-emitting unit located on an upper portion of each of the plurality of light-emitting stack structures.

A display device and a test method of the display device are discussed. The display device can include a substrate having a display region and a non-display region, a circuit layer disposed in the display region and the non-display region, a plurality of banks disposed on the circuit layer, and a plurality of pixels each including a plurality of light-emitting elements disposed on the plurality of banks in the display region. The first electrodes of the plurality of pixels are connected to the anode electrodes of the plurality of light-emitting elements, and the second electrodes of the plurality of pixels are connected to the cathode electrodes of the plurality of light-emitting elements. Adjacent second electrodes of the pixels are disposed to face each other and are spaced apart from each other.

A display device includes: a substrate; a first reflective layer on the substrate and including at least one lower sub-insulating layer which includes a first sub-layer having a first refractive index and a second sub-layer on the first sub-layer and having a second refractive index different from the first refractive index; a first light-emitting element on the first reflective layer and configured to emit light of a first color; a first reflective bulkhead spaced apart from the first light-emitting element and provided at opposite sides of the first light-emitting element; and a reflective electrode under the first light-emitting element and overlapping the first reflective bulkhead in a plan view.

A connection film configured to connect a substrate and a plurality of light emitting diodes includes: a sheet having a black-shade color; and a plurality of conductive adhesive members provided at intervals on the sheet. The plurality of conductive adhesive members are provided in a grid pattern on the sheet. A surface area of each of the plurality of conductive adhesive members is less than a surface area of a substrate pad on the substrate and less than a surface area of an electrode pad on one of the plurality of light emitting diodes.