A display apparatus including an oxide semiconductor is provided. The display apparatus includes a driving circuit and a light-emitting device on a display area of a device substrate. The driving circuit can be electrically connected to the light-emitting device. The driving circuit can include at least one thin film transistor. A semiconductor pattern of the thin film transistor can include an oxide semiconductor. The display area can be surrounded by a barrier line. The barrier line can include a hydrogen blocking material. A barrier trench can penetrate inorganic insulating layers stacked on the barrier line. A cover pattern can be on a side-wall of the barrier trench. Thus, in the display apparatus, the movement of hydrogen from an edge of the device substrate toward the display area can be blocked. Therefore, the degradation in the reliability of the driving circuit due to the penetration of the hydrogen can be prevented.

A wiring substrate includes a plurality of functional units arranged in an array. Each of the functional units includes: a plurality of first pad groups arranged along a first direction, and a second pad group located at a side of the plurality of the first pad groups along the second direction. The second pad group includes a plurality of channel pads and at least two functional pads, and a quantity of pads in the second pad group is even and the pads in the second pad group are arranged at intervals in a 2*N array. The plurality of channel pads are arranged at intervals along a same direction in a first line and are respectively connected one-to-one with a plurality of first pad groups of which a quantity is same as a quantity of the plurality of the channel pads.

A wiring substrate includes a plurality of functional units arranged in an array. Each of the functional units includes: a plurality of first pad groups arranged along a first direction, and a second pad group located at a side of the plurality of the first pad groups along the second direction. The second pad group includes a plurality of channel pads and at least two functional pads, and a quantity of pads in the second pad group is even and the pads in the second pad group are arranged at intervals in a 2*N array. The plurality of channel pads are arranged at intervals along a same direction in a first line and are respectively connected one-to-one with a plurality of first pad groups of which a quantity is same as a quantity of the plurality of the channel pads.

A display device includes a display panel including a first area in which a pixel is disposed, a second area extending in a first direction, a third area spaced apart from the first area by the second area in a second direction perpendicular to the first direction, and a first cutting line penetrating at least a portion of the display panel and extending from an intersection point formed by a first straight portion included in the first area and a second straight portion included in the second area.

A display device includes a display panel including a first area in which a pixel is disposed, a second area extending in a first direction, a third area spaced apart from the first area by the second area in a second direction perpendicular to the first direction, and a first cutting line penetrating at least a portion of the display panel and extending from an intersection point formed by a first straight portion included in the first area and a second straight portion included in the second area.

The transparent display device may include a first layer including a first power wiring and a second power wiring along a first direction, a second layer disposed on the first layer and including a third power wiring, a fourth power wiring, a first data signal wiring, a second data signal wiring, and a plurality of connecting wirings along the first direction, a driving IC disposed between the third power wiring and the fourth power wiring, and a light-emitting element disposed between the third power wiring and the fourth power wiring. The first power wiring and the third power wiring may overlap vertically, and the second power wiring and the fourth power wiring may overlap vertically.

The transparent display device may include a first layer including a first power wiring and a second power wiring along a first direction, a second layer disposed on the first layer and including a third power wiring, a fourth power wiring, a first data signal wiring, a second data signal wiring, and a plurality of connecting wirings along the first direction, a driving IC disposed between the third power wiring and the fourth power wiring, and a light-emitting element disposed between the third power wiring and the fourth power wiring. The first power wiring and the third power wiring may overlap vertically, and the second power wiring and the fourth power wiring may overlap vertically.

A display device comprises a display area and a non-display area, a substrate including a plurality of pixel electrodes disposed in the display area, a light emitting element disposed on each of the plurality of pixel electrodes and including a first semiconductor layer, an active layer, and a second semiconductor layer, a first common connection electrode and a second common connection electrode disposed in the non-display area and a bonding electrode disposed between the light emitting element and the plurality of pixel electrodes, wherein the second common connection electrode has a thickness thinner than the bonding electrode.

A display device comprises a display area and a non-display area, a substrate including a plurality of pixel electrodes disposed in the display area, a light emitting element disposed on each of the plurality of pixel electrodes and including a first semiconductor layer, an active layer, and a second semiconductor layer, a first common connection electrode and a second common connection electrode disposed in the non-display area and a bonding electrode disposed between the light emitting element and the plurality of pixel electrodes, wherein the second common connection electrode has a thickness thinner than the bonding electrode.

A display panel and a display device, including: a driving backplane, including a substrate, one or more driving circuits arranged in an array on the substrate, and one or more positive pads arranged on a side of the driving circuits facing away from the substrate; one or more pixel islands on the driving backplane, the pixel island including one or more first sub-pixels; one or more first electrode pad sets between the pixel islands and the driving backplane, and an orthographic projection of a first electrode pad set on the substrate being located in an orthographic projection of a corresponding pixel island on the substrate; the first electrode pad set including one or more first electrode pads, and the first electrode pads being bonded and connected to the positive pads.