Abstract: A display device includes an auxiliary wiring located on a substrate; an insulating layer arranged on the auxiliary wiring, overlapping the auxiliary wiring in a plan view, and including an opening having a width greater than a width of the auxiliary wiring; a first electrode located on the insulating layer; a bank layer including an emission opening that overlaps the first electrode in a plan view; an intermediate layer overlapping the first electrode through an emission opening in a plan view and including an emission layer; a second electrode on the intermediate layer; and an auxiliary layer arranged on the second electrode, wherein the auxiliary wiring includes sub-layers, and each of the second electrode and the auxiliary layer contacts a side surface of one of the sub-layers through the opening of the insulating layer.

Abstract: An apparatus for manufacturing a display device includes a chamber, a mask assembly disposed in the chamber and facing a display substrate, a magnetic force portion which is disposed in the chamber and applies magnetic force to the mask assembly, and a deposition source which is disposed in the chamber, faces the mask assembly and supplies a deposition material so that the deposition material passes through the mask assembly and is deposited on the display substrate, where the mask assembly includes a first mask layer in which a first mask opening is defined, and a second mask layer which is disposed on the first mask layer and in which a second mask opening overlapping the first mask opening is defined, where the second mask layer includes a 2-1st mask portion, and a 2-2nd mask portion protruding from the 2-1st mask portion toward the display substrate.

Abstract: A display device includes a substrate, a gate insulating layer, an auxiliary electrode extending in a first direction in a plan view parallel to the substrate and including a first portion and a second portion, the first portion having a first thickness in a second direction crossing the first direction, and the second portion having a second thickness in the second direction, an inorganic insulating layer defining a first opening exposing a portion of the second portion, an organic insulating layer defining a second opening exposing a portion of the second portion, an intermediate layer disposed on the organic insulating layer and defining a third opening exposing a portion of the second portion, and an opposite electrode disposed on the intermediate layer and contacting upper and side surfaces of the auxiliary electrode. The second thickness of the second portion is less than the first thickness of the first portion.

Abstract: A display device includes a first pixel electrode and a second pixel electrode that are spaced from each other on a substrate, a pixel-defining layer including a first opening and a second opening, a first lower emission layer on the first pixel electrode, a second lower emission layer on the second pixel electrode, a first charge generation layer interposed between the first lower emission layer and a first upper emission layer, a second charge generation layer interposed between the second lower emission layer and a second upper emission layer, an opposite electrode on the first pixel electrode and the second pixel electrode, a heating metal layer on the pixel-defining layer and arranged between the first opening and second opening when seen from a direction perpendicular to the substrate, and an inorganic insulating layer covering the heating metal layer.

Abstract: A display panel includes: a base substrate including a display area, and a hole area having a hole defined therein; a light emitting element in the display area, and including: a pixel electrode on the base substrate; a light emitting layer on the pixel electrode; and a common control layer on the pixel electrode; a heating line surrounding the hole in the hole area; and a signal transmission line connected to the heating line, and electrically insulated from the light emitting element. The common control layer is spaced from the heating line.

Abstract: An organic light-emitting display apparatus, including a substrate including a plurality of pixel areas and non-pixel areas in a display area, a plurality of pixel electrodes respectively corresponding to the plurality of pixel areas, a pixel-defining layer including a cover portion and openings, wherein the cover portion covers an edge of each of the plurality of pixel electrodes, and each of the openings exposes a central portion of a pixel electrode among the plurality of pixel electrodes, an auxiliary electrode located such that the auxiliary electrode corresponds to at least a portion of a top surface of the cover portion, and an intermediate layer and a counter electrode, each located in the openings. The pixel-defining layer may have an under-cut structure in which the at least a portion of the top surface of the cover portion is recessed from the auxiliary electrode.

Abstract: A mask assembly includes a frame including first to fourth lateral parts connected to define a frame opening, an open sheet including a body part in which sheet openings arranged in a first direction and a second direction are defined to overlap the frame opening and a connecting part protruding from the body part and at least partially overlapping the frame, and masks, each including a deposition part having deposition openings defined therein and coupling parts that protrude from the deposition part and that are spaced apart from each other with the deposition part therebetween. The connecting part includes a first connecting part and a second connecting part that overlap the frame and a third connecting part and a fourth connecting part that at least partially overlap the frame.

Abstract: A mask assembly includes an open mask including first and second open openings defined therethrough and alternately arranged in a first direction, first unit masks respectively corresponding to the first open openings, and second unit masks respectively corresponding to the second open openings. Each of the first unit masks includes a first deposition portion through which first deposition openings are defined and first and second welding portions extending from the first deposition portion to the first direction and a direction opposite to the first direction, respectively. Each of the second unit masks includes a second deposition portion through which second deposition openings are defined and third and fourth welding portions extending from the second deposition portion to a second direction and a direction opposite to the second direction.

Abstract: An apparatus for manufacturing a display device includes a mask assembly, and a deposition source that supplies a deposition material toward the mask assembly. The mask assembly includes a mask frame including a first opening, a sheet portion fixed on the mask, overlapping a portion of the first opening in a plan view, and including a plurality of second openings, a plurality of first masks corresponding to the plurality of second openings and fixed on the sheet portion, each including a plurality of third openings, and a second mask arranged on another portion of the first opening defined by an edge of the sheet portion and inner surfaces of the first opening, fixed on the mask frame, and including a plurality of fourth openings.

Abstract: A mask assembly manufacturing apparatus includes a stage and a tensioner. A preliminary mask assembly including an open mask including a first opening and a second opening and a frame connected to the open mask disposed on the stage. The tensioner tensions a unit mask including a cell area including deposition openings and a holding area extending from the cell area, in a first direction. The cell area has a first width parallel to the first direction and a second width parallel to the second direction intersecting the first direction and greater than the first width.

Abstract: A mask frame includes a first surface facing a mask, a second surface extending from a side of the first surface at an angle, a third surface extending from another side of the first surface at an angle to define a frame opening, and a first flow path including a first opening defined through the first surface and extending in a first direction and a second opening extending the first opening, defined through the second surface, and extending in a second direction different from the first direction.

Abstract: An organic light-emitting display apparatus, including a substrate including a plurality of pixel areas and non-pixel areas in a display area, a plurality of pixel electrodes respectively corresponding to the plurality of pixel areas, a pixel-defining layer including a cover portion and openings, wherein the cover portion covers an edge of each of the plurality of pixel electrodes, and each of the openings exposes a central portion of a pixel electrode among the plurality of pixel electrodes, an auxiliary electrode located such that the auxiliary electrode corresponds to at least a portion of a top surface of the cover portion, and an intermediate layer and a counter electrode, each located in the openings. The pixel-defining layer may have an under-cut structure in which the at least a portion of the top surface of the cover portion is recessed from the auxiliary electrode.

Abstract: An organic light-emitting display device includes: a substrate; an insulating layer disposed on the substrate; a first electrode disposed on the insulating layer; a pixel defining layer disposed on the first electrode and defining an emission area by an opening that exposes at least part of the first electrode; a metal layer disposed on the pixel defining layer and in a non-emission area around the emission area; an organic light-emitting layer disposed on the first electrode in the opening; and a second electrode disposed on the organic light-emitting layer in the emission area and the non-emission area, where the metal layer is disposed between the pixel defining layer and the second electrode in the non-emission area.

Abstract: A display apparatus includes an auxiliary line that includes a main sublayer, a lower sublayer arranged under the main sublayer, and an upper sublayer arranged over the main sublayer, a partition wall adjacent to the auxiliary line and that includes an opening corresponding to a side surface of the auxiliary line, a first electrode adjacent to the auxiliary line, a second electrode arranged over the first electrode and the auxiliary line, and an intermediate layer arranged between the first electrode and the second electrode and that includes an emission layer, wherein the upper sublayer of the auxiliary line includes a tip protruding in a lateral direction from a point where a side surface and an upper surface of the main sublayer meet each other, an upper end of the partition wall is spaced apart from the tip of the auxiliary line, and the second electrode contacts the auxiliary line.

Abstract: A display apparatus includes: an auxiliary line comprising a main sub-layer and an upper layer on the main sub-layer; an insulating layer comprising a first opening having a greater width than the auxiliary line, wherein the first opening overlaps the auxiliary line; a first electrode on the insulating layer; an intermediate layer overlapping the first electrode and comprising an emission layer; an auxiliary layer, at least a portion of which overlaps the auxiliary line; and a second electrode on the auxiliary layer, wherein the upper layer of the auxiliary line comprises a tip protruding, in a lateral direction, from a first point, in which a side surface and an upper surface of the main sub-layer meet each other, and being curved upwards from the first point, and the second electrode contacts the side surface of the main sub-layer through the first opening of the insulating layer.

Abstract: A display device and a manufacturing method of a display device are provided. A display device includes: a substrate; a semiconductor layer on the substrate; a source electrode and a drain electrode on the semiconductor layer; an auxiliary electrode on a same layer as the source electrode and the drain electrode; a first electrode electrically connected with the source electrode or the drain electrode; a light emitting element layer on the first electrode; and a second electrode on the light emitting element layer, and the auxiliary electrode includes at least one groove located inside the auxiliary electrode.

Abstract: A display device including a transmission area having improved transmittance and a method of manufacturing the same are provided. The display device includes: a substrate including a display area and a peripheral area outside the display area, the display area having a transmission area and a pixel area; a display element corresponding to the pixel area and including a pixel electrode, an intermediate layer on the pixel electrode, and a counter electrode on the intermediate layer; a photoluminescent layer corresponding to the transmission area and including a photoluminescent material; and an auxiliary layer on the photoluminescent layer, wherein the counter electrode includes a first material, the auxiliary layer includes a second material, and the first material is higher in surface energy than the second material, at room temperature.

Abstract: A display device includes an auxiliary wiring located on a substrate; an insulating layer arranged on the auxiliary wiring, overlapping the auxiliary wiring in a plan view, and including an opening having a width greater than a width of the auxiliary wiring; a first electrode located on the insulating layer; a bank layer including an emission opening that overlaps the first electrode in a plan view; an intermediate layer overlapping the first electrode through an emission opening in a plan view and including an emission layer; a second electrode on the intermediate layer; and an auxiliary layer arranged on the second electrode, wherein the auxiliary wiring includes sub-layers, and each of the second electrode and the auxiliary layer contacts a side surface of one of the sub-layers through the opening of the insulating layer.

Abstract: A display apparatus includes a substrate, a first electrode, a second electrode to be adjacent to the first electrode, a first emission layer on the first electrode, a second emission layer on the second electrode, a first low adhesive pattern between a center of the first emission layer and a center of the second emission layer in a plan view, a first negative charge generation layer continuously disposed to cover the first emission layer, the second emission layer, and the first low adhesive pattern, a first positive charge generation layer on the first negative charge generation layer, a first upper emission layer on the first positive charge generation layer and overlapping the first emission layer, a second upper emission layer on the first positive charge generation layer and overlapping the second emission layer, and a common electrode on the first upper emission layer and the second upper emission layer.

Abstract: Disclosed is a display device including a base layer, a circuit layer including a plurality of transistors spaced apart from each other and disposed on a top of the base layer, a plurality of insulating layers disposed on a top of the base layer, and a plurality of contact electrodes electrically connected to the transistors, respectively, a first light emitting unit disposed on a top of the circuit layer, a second light emitting unit, and a lower protrusion disposed between at least one of the transistors and the second lower electrode, wherein at least one of the contact electrodes is disposed to extend to a top surface of the lower protrusion in the circuit layer while following a shape of the lower protrusion to simplify an etching process of an encapsulation layer.