Display apparatus

1. A display apparatus comprising:

a substrate comprising a main display area, a component area, and a peripheral area;

a main pixel electrode at the main display area of the substrate;

a main thin-film transistor at the main display area of the substrate and electrically connected to the main pixel electrode;

an auxiliary pixel electrode at the component area of the substrate;

an auxiliary thin-film transistor at the peripheral area of the substrate; and

a connecting wire connected to the auxiliary pixel electrode and including a thin portion having a thickness less than a thickness of the auxiliary pixel electrode,

wherein the connecting wire electrically connects the auxiliary thin-film transistor to the auxiliary pixel electrode.

2. The display apparatus of claim 1 , wherein the thin portion of the connecting wire and the auxiliary pixel electrode comprise a same material.

3. The display apparatus of claim 1 , wherein the auxiliary pixel electrode includes multiple layers, and the thin portion of the connecting wire and at least one of the multiple layers of the auxiliary pixel electrode include a same material.

4. The display apparatus of claim 1 , wherein the auxiliary pixel electrode includes multiple layers, and the thin portion of the connecting wire and one of the multiple layers of the auxiliary pixel electrode include a same material.

5. The display apparatus of claim 1 , wherein the auxiliary pixel electrode includes multiple layers, and the thin portion of the connecting wire and one of the multiple layers of the auxiliary pixel electrode are integrally formed as a single body.

6. The display apparatus of claim 1 , wherein the auxiliary pixel electrode includes multiple layers, and the thin portion of the connecting wire and a lowermost layer of the multiple layers of the auxiliary pixel electrode in a direction to the substrate are integrally formed as a single body.

7. The display apparatus of claim 6 , wherein an etch rate of the lowermost layer of the auxiliary pixel electrode is less than an etch rate of a layer of the auxiliary pixel electrode, the layer being on the lowermost layer.

8. The display apparatus of claim 7 , wherein the lowermost layer of the auxiliary pixel electrode includes ITO, IZO, AZO, or GZO, and the layer of the auxiliary pixel electrode on the lowermost layer of the auxiliary pixel electrode includes Ag or Al.

9. The display apparatus of claim 7 , wherein the lowermost layer of the auxiliary pixel electrode includes a transparent conductive material, and the layer of the auxiliary pixel electrode on the lowermost layer of the auxiliary pixel electrode includes a metal.

10. The display apparatus of claim 7 , wherein the lowermost layer of the auxiliary pixel electrode includes a conductive oxide, and the layer of the auxiliary pixel electrode on the lowermost layer of the auxiliary pixel electrode includes a metal.

11. The display apparatus of claim 6 , wherein a thickness of the thin portion of the connecting wire is less than a thickness of the lowermost layer of the auxiliary pixel electrode.

12. The display apparatus of claim 6 , wherein the auxiliary pixel electrode includes the lowermost layer, an intermediate layer on the lowermost layer, and an uppermost layer on the intermediate layer, and

a thickness of the lowermost layer is greater than a thickness of the uppermost layer.

13. The display apparatus of claim 12 , wherein the thickness of the lowermost layer is equal to or greater than 100 Å and less than or equal to 2,000 Å.

14. The display apparatus of claim 12 , wherein the uppermost layer and the lowermost layer include a same material.

15. The display apparatus of claim 1 , wherein the thin portion of the connecting wire extends up to an upper portion of the auxiliary thin-film transistor.

16. The display apparatus of claim 1 , wherein the connecting wire includes only the thin portion.