Abstract: A display device comprises a repair circuit, and a repair circuit connection pattern extending across a pixel and the repair circuit. Each of a first and second subpixels comprises a light emitting element, a first transistor connected thereto, and a second transistor connected to a gate electrode of the first transistor. The repair circuit comprises first and second repair transistors connected to a gate electrode of the first repair transistor. A first source/drain electrode of the first transistor of each of the first and second subpixels is connected to the power line, a second source/drain electrode of the first transistor of each of the first and second subpixels overlaps the repair circuit connection pattern. A first source/drain electrode of the first repair transistor is connected to the power line, and a second source/drain electrode of the first repair transistor overlaps the first repair circuit connection pattern.

Abstract: A display device may include: a substrate having a display area and a non-display area, and including a first surface and a second surface facing away from each other in a thickness direction of the substrate, and a side surface connecting the first and second surfaces; a light emitting element on the first surface of the substrate in the display area; a pad electrode on the first surface of the substrate in the non-display area; an intermediate electrode on the second surface of the substrate in the display area; and a side connection line on the side surface, and electrically connected to each of the pad electrode and the intermediate electrode. The pad electrode may include a first pad electrode and a second pad electrode. Opposite side surfaces of the second pad electrode may have the same inclination angles as opposite side surfaces of the first pad electrode.

Abstract: A display device includes a base layer on a plane defined by a first direction and a second direction different from the first direction, a front surface backplane layer on the base layer, and a light emitting element on the front surface backplane layer. The front surface backplane layer includes a first layer, a second layer on the first layer, and a third layer on the second layer. The first layer includes a first power line, a portion of the first power line extends in the first direction and another portion of the first power line extends in the second direction. The second layer includes a pixel circuit configured to drive the light emitting element. The third layer includes a second power line, a portion of the second power line extends in the first direction and another portion of the second power line extends in the second direction.

Abstract: Provided are display device and tiled display device including a plurality of display devices. A display device includes a substrate, a first electrode above one surface of the substrate, a contact electrode above the first electrode, and contacting the first electrode, a buffer layer above the contact electrode, an active layer of a thin film transistor above the buffer layer, a gate-insulating layer above the active layer, a gate electrode of the thin film transistor above the gate-insulating layer, and a light-emitting element above the first electrode, and in an element contact hole penetrating the contact electrode, the buffer layer, and the gate-insulating layer.

Abstract: A display device includes a base layer, and a first backplane layer disposed on the base layer. The first backplane layer includes a lower backplane layer, an outer via layer disposed on the lower backplane layer, and an outer passivation layer disposed on the outer via layer. The outer passivation layer includes a first outer passivation layer and a second outer passivation layer disposed on the first outer passivation layer. The second outer passivation layer includes multiple holes overlapping the first outer passivation layer in a plan view.

Abstract: A display device according to an embodiment including: a base layer including a first surface and a second surface; a first backplane layer disposed on the first surface of the base layer and including a pixel circuit; a second backplane layer disposed on the second surface of the base layer and including a rear wire; and a light-emitting-element layer disposed on the first backplane layer and including a light emitting element. The base layer has a transmittance of about 15% or less with respect to light having a wavelength of about 290 nm or less.

Abstract: A display device according to an embodiment includes: a first conductive layer that is disposed on a substrate; a transistor that is disposed on the substrate; and a light emitting element that is electrically connected to the transistor, wherein the transistor includes a semiconductor layer that at least partially overlaps the first conductive layer and is disposed on the first conductive layer, and a gate electrode that is disposed on the semiconductor layer. The semiconductor layer includes a first region that does not overlap the first conductive layer, a third region that overlaps the first conductive layer, and a second region that is disposed between the first region and the third region and traverses an edge of the first conductive layer. The first width of the semiconductor layer in the first region is smaller than a second width of the semiconductor layer in the second region.

Abstract: A display device includes a lower electrode extending in a first direction and a first active layer disposed on the lower electrode and extending in a second direction perpendicular to the first direction. The first active layer includes a first area having a first width in the first direction, a second area having a second width wider than the first width in the first direction, and overlapping the lower electrode and a third area between the first area and the second area and connecting the first area to the second area.

Abstract: A display device comprises a signal line on a first surface of a substrate, a lightemitting element on the signal line and comprising a first semiconductor layer, a second semiconductor layer, and an active layer between the first semiconductor layer and the second semiconductor layer, a connection line on a second surface of the substrate and electrically connected to the signal line, and conductive lines on the second surface of the substrate and separated from the connection line. The conductive lines comprise a first conductive layer and a second conductive layer covering the first conductive layer.

Abstract: A display device in accordance with an embodiment may include: a base layer including a first surface and a second surface that is opposite to the first surface; a first insulating layer disposed on the second surface; a planarization layer disposed between the second surface and the first insulating layer; a rear line disposed on the first insulating layer; and a rear pad electrode disposed on the rear line. The planarization layer may include organic material.

Abstract: A display device may include a light emitting element, a buffer layer, a gate insulation layer, and a switching element. A refractive index of the gate insulation layer may be equal to a refractive index of the buffer layer. The switching element may be electrically connected to the light emitting element and may include an active layer and a gate electrode. The active layer may be positioned between the buffer layer and the gate insulation layer and may directly contact at least one of the buffer layer and the gate insulation layer. The gate insulation layer may be positioned between the active layer and the gate electrode and may directly contact at least one of the active layer and the gate electrode.

Abstract: A display device includes a first conductive pattern on a substrate, a first insulating layer on the first conductive pattern, a semiconductor pattern on the first insulating layer, a second insulating layer on the first insulating layer and the semiconductor pattern, and a second conductive pattern on the second insulating layer. A first edge of the first conductive pattern faces a second edge of the second conductive pattern, the first conductive pattern does not overlap the second conductive pattern in an area where the first edge faces the second edge, the semiconductor pattern is in the area where the first edge faces the second edge, the second conductive pattern overlaps the second insulating layer, and the second insulating layer includes a third edge protruding from the second edge of the second conductive pattern.

Abstract: A display device includes a substrate; a semiconductor layer disposed on the substrate; a gate insulating film disposed on the semiconductor layer; a gate layer disposed on the gate insulating film and insulated from the semiconductor layer; an insulating film disposed on the semiconductor layer and the gate layer; and a metal layer disposed on the insulating film, wherein the semiconductor layer and the gate layer are electrically connected through the metal layer, and the semiconductor layer overlaps the gate layer in a plan view.

Abstract: A display device comprises a repair circuit, and a repair circuit connection pattern extending across a pixel and the repair circuit. Each of a first and second subpixels comprises a light emitting element, a first transistor connected thereto, and a second transistor connected to a gate electrode of the first transistor. The repair circuit comprises first and second repair transistors connected to a gate electrode of the first repair transistor. A first source/drain electrode of the first transistor of each of the first and second subpixels is connected to the power line, a second source/drain electrode of the first transistor of each of the first and second subpixels overlaps the repair circuit connection pattern. A first source/drain electrode of the first repair transistor is connected to the power line, and a second source/drain electrode of the first repair transistor overlaps the first repair circuit connection pattern.

Abstract: A display device includes: an array of pixels disposed on a display area; a connection pad disposed on a pad area; a transmission line electrically coupled with the connection pad; and a conductive dummy pattern disposed under the transmission line. A part of the conductive dummy pattern overlaps the transmission line in a plan view. The transmission line transmits a driving signal or a power signal to the array of pixels. The connection pad includes a pad conductive layer electrically coupled with the transmission line, and a passivation layer disposed on the pad conductive layer. The passivation layer covers at least a side surface of the pad conductive layer and defines an opening overlapping the conductive dummy pattern and the transmission line in the plan view.

Abstract: A display device includes a lower electrode extending in a first direction and a first active layer disposed on the lower electrode and extending in a second direction perpendicular to the first direction. The first active layer includes a first area having a first width in the first direction, a second area having a second width wider than the first width in the first direction, and overlapping the lower electrode and a third area between the first area and the second area and connecting the first area to the second area.

Abstract: A display device according to an embodiment includes: a first conductive layer that is disposed on a substrate; a transistor that is disposed on the substrate; and a light emitting element that is electrically connected to the transistor, wherein the transistor includes a semiconductor layer that at least partially overlaps the first conductive layer and is disposed on the first conductive layer, and a gate electrode that is disposed on the semiconductor layer. The semiconductor layer includes a first region that does not overlap the first conductive layer, a third region that overlaps the first conductive layer, and a second region that is disposed between the first region and the third region and traverses an edge of the first conductive layer. The first width of the semiconductor layer in the first region is smaller than a second width of the semiconductor layer in the second region.

Abstract: A display device includes a first conductive pattern on a substrate, a first insulating layer on the first conductive pattern, a semiconductor pattern on the first insulating layer, a second insulating layer on the first insulating layer and the semiconductor pattern, and a second conductive pattern on the second insulating layer. A first edge of the first conductive pattern faces a second edge of the second conductive pattern, the first conductive pattern does not overlap the second conductive pattern in an area where the first edge faces the second edge, the semiconductor pattern is in the area where the first edge faces the second edge, the second conductive pattern overlaps the second insulating layer, and the second insulating layer includes a third edge protruding from the second edge of the second conductive pattern.

Abstract: A display device may include a light emitting element, a buffer layer, a gate insulation layer, and a switching element. A refractive index of the gate insulation layer may be equal to a refractive index of the buffer layer. The switching element may be electrically connected to the light emitting element and may include an active layer and a gate electrode. The active layer may be positioned between the buffer layer and the gate insulation layer and may directly contact at least one of the buffer layer and the gate insulation layer. The gate insulation layer may be positioned between the active layer and the gate electrode and may directly contact at least one of the active layer and the gate electrode.

Abstract: A display device may include a light emitting element, a buffer layer, a gate insulation layer, and a switching element. A refractive index of the gate insulation layer may be equal to a refractive index of the buffer layer. The switching element may be electrically connected to the light emitting element and may include an active layer and a gate electrode. The active layer may be positioned between the buffer layer and the gate insulation layer and may directly contact at least one of the buffer layer and the gate insulation layer. The gate insulation layer may be positioned between the active layer and the gate electrode and may directly contact at least one of the active layer and the gate electrode.