Display device including a maximized image output area
A display device may include a substrate including a first area and a second area surrounding the first area, and pixel circuits disposed on the substrate. The pixel circuits may include a first pixel circuit disposed in the first area and a second pixel circuit disposed in the first area. The display device may include display elements disposed on the substrate. The display elements may include a first display element that may be disposed in the first area and electrically connected to the first pixel circuit and a second display element that may be disposed in the second area and electrically connected to the second pixel circuit. Various embodiments are disclosed.
1. A display device comprising:
a substrate comprising a first area and a second area adjacent to the first area;
pixel circuits disposed on the substrate, and the pixel circuits comprising a first pixel circuit disposed in the first area and a second pixel circuit disposed in the first area; and
display elements disposed on the substrate, the display elements comprising:
a first display element disposed in the first area and electrically connected to the first pixel circuit, wherein the first pixel circuit and the display element are disposed to overlap each other on the substrate; and
a second display element disposed in the second area and electrically connected to the second pixel circuit,
wherein the second display element is configured not to overlap the second pixel circuit.
2. The display device of claim 1 , wherein the display elements each comprise:
a pixel electrode;
an opposite electrode disposed on the pixel electrode; and
an intermediate layer between the pixel electrode and the opposite electrode, wherein
the pixel electrode of the second display element extends from the second area to the first area and is electrically connected to the second pixel circuit in the first area.
3. The display device of claim 2 , wherein the pixel circuits each comprise a thin-film transistor comprising:
a semiconductor layer;
a gate electrode overlapping the semiconductor layer; and
an electrode layer connected to the semiconductor layer, wherein
the pixel electrode of the second display element is electrically connected to the electrode layer of the second pixel circuit.
4. The display device of claim 1 , further comprising:
a contact metal layer between the pixel circuits and the display elements,
wherein the contact metal layer extends from the first area to the second area and electrically connects the second pixel circuit disposed in the first area to the second display element disposed in the second area.
5. The display device of claim 1 , wherein a distance between the first pixel circuit and the second pixel circuit is less than a distance between the first display element and the second display element.
6. The display device of claim 1 , wherein a number of the pixel circuits disposed in the first area is greater than a number of the display elements disposed in the first area.
7. The display device of claim 1 , wherein a number of the pixel circuits disposed in the first area corresponds to a number of the display elements disposed in the first area and the second area.
8. The display device of claim 1 , wherein a number of the pixel circuits per unit area is greater than a number of the display elements per unit area.
9. The display device of claim 1 , wherein the second display element is disposed to overlap at least one of a driving circuit and a connection line which are disposed on the substrate in the second area.
10. A display device comprising:
a substrate comprising:
a first area;
a second area adjacent to the first area; and
an opening area surrounded by the second area;
pixel circuits disposed on the substrate and comprising:
a first pixel circuit disposed in the first area; and
a second pixel circuit disposed in the first area; and
display elements disposed on the substrate, the display elements comprising;
a first display element electrically connected to the first pixel circuit and disposed in the first area, wherein the first pixel circuit and the first display element are disposed to overlap each other on the substrate; and
a second display element electrically connected to the second pixel circuit and disposed in the second area,
wherein the second display element is configured not to overlap the second pixel circuit.
11. The display device of claim 10 , wherein the second display element is electrically connected to the second pixel circuit via one of:
a pixel electrode included in the second display element and extending from the second area to the first area; and
a contact metal layer between the pixel circuits and the display elements and extending from the first area to the second area.
12. The display device of claim 10 , wherein a distance between the first pixel circuit and the second pixel circuit is less than a distance between the first display element and the second display element.
13. A display device comprising:
a substrate comprising a first area and a second area adjacent to the first area;
pixel circuits disposed on the substrate, and the pixel circuits comprising a first pixel circuit disposed in the first area and a second pixel circuit disposed in the first area;
a scan driving circuit disposed in the second area and providing a scanning signal to the first pixel circuit and the second pixel circuit through a scanning line;
display elements disposed on the substrate, the display elements comprising:
a first display element disposed in the first area and electrically connected to the first pixel circuit, wherein the first pixel circuit and the first display element are disposed to overlap each other on the substrate; and
a second display element disposed in the second area and electrically connected to the second pixel circuit, wherein the second display element is disposed to overlap at least one of the scan driving circuit and the power supply line; and
a power supply line disposed in the second area and providing a power voltage to an opposite electrode of the first display element and the second display element.