Abstract: A light emitting element includes a bonding electrode, and a light emitting stack including a first semiconductor layer, an active layer, and a second semiconductor layer sequentially disposed each other on the bonding electrode. At least one protrusion structure is defined on an upper surface of the light emitting stack, and the protrusion structure includes a first protrusion protruding in a direction away from the bonding electrode and defining a groove concave in a direction facing the bonding electrode, and a second protrusion protruding in a direction away from the bonding electrode in the groove of the first protrusion.

Abstract: In a method of manufacturing a display device, the method includes aligning a metal layer of a transfer substrate and a display substrate to face each other, attaching a light emitting element including a metal protrusion portion bonded to the metal layer to an overcoat layer of the display substrate by moving the transfer substrate relative to the display substrate, and separating the metal protrusion portion from the light emitting element by moving the transfer substrate relative to the display substrate.

Abstract: In a method of manufacturing a display device, the method includes forming a first electrode on a substrate, forming an insulating layer over the first electrode, aligning a first light emitting element on the insulating layer, light-exposing the insulating layer, exposing at least a portion of the first electrode by developing the insulating layer, and bonding the first light emitting element to the at least a portion of the first electrode.

Abstract: A light-emitting element includes a core including a first semiconductor layer including a first portion and a second portion, the first and second portions having side surfaces at different inclinations, a second semiconductor layer disposed on the first semiconductor layer, and an emissive layer disposed between the first semiconductor layer and the second semiconductor layer; a first insulating layer surrounding the first portion of the first semiconductor layer; and a second insulating layer surrounding the second portion of the first semiconductor layer.

Abstract: A display device includes light emitting elements each including a first area and a second area having different diameters, and a base layer surrounding the first area of the light emitting elements and contacting the first area of each of the light emitting elements. The second area of each of the light emitting elements protrudes from a first surface of the base layer.

Abstract: A display device includes a first substrate including a first contact hole, fan-out lines in a first metal layer, a second substrate on the first metal layer and including a second contact hole, connection lines in a second metal layer and into the second contact hole connected to the fan-out lines, a thin film transistor in an active layer and a third metal layer on the second metal layer, and a flexible film on a surface of the first substrate and into the first contact hole connected to the fan-out lines. An etching angle of the first contact hole between a top surface of the first substrate and an inner surface of the first contact hole is less than an etching angle of the second contact hole between top surfaces of the fan-out lines and an inner surface of the second contact hole.

Abstract: A deposition mask includes: a plurality of sub-masks through which deposition material passes to a base layer to form a deposition layer defining a hole therein, each of the sub-masks including: an aperture through which the deposition material passes to the base layer, a total planar area of the aperture corresponding to less than a total planar area of the deposition layer, and a masking surface at which the deposition material does not pass through the sub-mask, the masking surface including a hole-forming portion of which a total planar area thereof corresponds to a total planar area of the hole defined in the deposition layer. The hole-forming portions of the sub-masks have a same shape and planar area as each other, and within each sub-mask, the shape of the hole-forming portion is nested within a shape of the aperture.

Abstract: An organic light-emitting display apparatus includes a transistor on a substrate. The transistor includes a gate electrode, a first electrode, and a second electrode. The apparatus also includes a protective layer over the first electrode and including a first portion that contacts the second electrode, and an organic light-emitting device having a pixel electrode electrically connected to the second electrode.

Abstract: An organic light-emitting display apparatus includes a transistor on a substrate. The transistor includes a gate electrode, a first electrode, and a second electrode. The apparatus also includes a protective layer over the first electrode and including a first portion that contacts the second electrode, and an organic light-emitting device having a pixel electrode electrically connected to the second electrode.

Abstract: A deposition mask includes: a plurality of sub-masks through which deposition material passes to a base layer to form a deposition layer defining a hole therein, each of the sub-masks including: an aperture through which the deposition material passes to the base layer, a total planar area of the aperture corresponding to less than a total planar area of the deposition layer, and a masking surface at which the deposition material does not pass through the sub-mask, the masking surface including a hole-forming portion of which a total planar area thereof corresponds to a total planar area of the hole defined in the deposition layer. The hole-forming portions of the sub-masks have a same shape and planar area as each other, and within each sub-mask, the shape of the hole-forming portion is nested within a shape of the aperture.

Abstract: A deposition mask includes: a plurality of sub-masks through which deposition material passes to a base layer to form a deposition layer defining a hole therein, each of the sub-masks including: an aperture through which the deposition material passes to the base layer, a total planar area of the aperture corresponding to less than a total planar area of the deposition layer, and a masking surface at which the deposition material does not pass through the sub-mask, the masking surface including a hole-forming portion of which a total planar area thereof corresponds to a total planar area of the hole defined in the deposition layer. The hole-forming portions of the sub-masks have a same shape and planar area as each other, and within each sub-mask, the shape of the hole-forming portion is nested within a shape of the aperture.

Abstract: A deposition mask includes: a plurality of sub-masks through which deposition material passes to a base layer to form a deposition layer defining a hole therein, each of the sub-masks including: an aperture through which the deposition material passes to the base layer, a total planar area of the aperture corresponding to less than a total planar area of the deposition layer, and a masking surface at which the deposition material does not pass through the sub-mask, the masking surface including a hole-forming portion of which a total planar area thereof corresponds to a total planar area of the hole defined in the deposition layer. The hole-forming portions of the sub-masks have a same shape and planar area as each other, and within each sub-mask, the shape of the hole-forming portion is nested within a shape of the aperture.

Abstract: An organic light emitting diode (OLED) display includes a base substrate, a first electrode on the base substrate, a pixel definition layer on the first electrode and having an opening exposing the first electrode, spacers on the pixel definition layer and having a smaller modulus than the pixel definition layer, an organic emission layer on the first electrode to correspond to the opening, and a second electrode on the organic emission layer.

Abstract: An organic light emitting diode (OLED) display includes a base substrate, a first electrode on the base substrate, a pixel definition layer on the first electrode and having an opening exposing the first electrode, spacers on the pixel definition layer and having a smaller modulus than the pixel definition layer, an organic emission layer on the first electrode to correspond to the opening, and a second electrode on the organic emission layer.

Abstract: An organic light-emitting display apparatus includes a transistor on a substrate. The transistor includes a gate electrode, a first electrode, and a second electrode. The apparatus also includes a protective layer over the first electrode and including a first portion that contacts the second electrode, and an organic light-emitting device having a pixel electrode electrically connected to the second electrode.

Abstract: In some aspects, a display device comprising a substrate, an organic film positioned on the substrate, an inorganic film positioned on the organic film and having at least one hole for exposing at least a part of the organic film, a first electrode positioned on the inorganic film, a second electrode positioned on the first electrode, an emission layer positioned between the first electrode and the second electrode to emit light by the first electrode and the second electrode, and an organic pattern positioned on the organic film that is exposed by the hole is provided.

Abstract: In some aspects, a display device comprising a substrate, an organic film positioned on the substrate, an inorganic film positioned on the organic film and having at least one hole for exposing at least a part of the organic film, a first electrode positioned on the inorganic film, a second electrode positioned on the first electrode, an emission layer positioned between the first electrode and the second electrode to emit light by the first electrode and the second electrode, and an organic pattern positioned on the organic film that is exposed by the hole is provided.

Abstract: A pattern forming apparatus includes a substrate receiving part on which a printed substrate formed with an organic layer thereon is disposed, and a rotation roll that removes portions of the organic layer to form a pattern. The rotation roll includes a rotation body having a cylindrical shape, a pivot engaged with the rotation body to transfer a rotational force to the rotation body, and a blanket attached to an outer surface of the rotation body. The blanket includes an embossed pattern formed on a surface thereof.