Display device
View Patent ↗A display device comprising a first electrode that comprises a first region, a second region, and a third region located between the first region and the second region; a first insulating film disposed on the first electrode; a second electrode that is disposed on the first insulating film and comprises a fourth region overlapping the third region; a second insulating film disposed on the second electrode; a contact hole formed through the second insulating film, the first contact hole exposing the first, second and fourth regions; and a third electrode that is disposed on the second insulating film to cover the first contact hole, and is connected to at least one of the first region and the second region exposed by the first contact hole and the fourth region exposed by the first contact hole.
1. A display device comprising:
a first electrode that comprises a first region, a second region, and a third region located between the first region and the second region;
a first insulating film disposed on the first electrode;
a second electrode that is disposed on the first insulating film and comprises a fourth region overlapping the third region;
a second insulating film disposed on the second electrode;
a first contact hole formed through the first insulating film and the second insulating film, the first contact hole exposing the first, second and fourth regions; and
a third electrode that is disposed on the second insulating film to cover the first contact hole, and is connected to at least one of the first region and the second region exposed by the first contact hole and the fourth region exposed by the first contact hole.
2. The display device of claim 1 , wherein widths of the first and second regions are not zero.
3. The display device of claim 1 , wherein the first and second regions do not overlap the second electrode.
4. The display device of claim 1 , wherein the first insulating film comprises at least one undercut portion disposed in a region overlapping the third region.
5. The display device of claim 1 , wherein the fourth region completely overlaps the third region.
6. The display device of claim 1 , wherein the width of the first region is different from or identical to the width of the second region.
7. The display device of claim 1 , wherein at least one of the first and second insulating films comprises an inorganic material.
8. The display device of claim 7 , further comprising:
an organic insulating film disposed on the second insulating film; and
a second contact hole that at least partially overlaps the first contact hole,
wherein the third electrode is disposed on the organic insulating film to cover the second contact hole.
9. The display device of claim 1 , further comprising:
a plurality of gate lines disposed on the same layer as the first electrode; and
a plurality of data lines disposed on the same layer as the second electrode.
10. The display device of claim 1 , wherein the third electrode comprises a transparent conductive material.
11. The display device of claim 1 , wherein the first and second electrodes comprise an opaque conductive material.
12. A display device comprising:
a first electrode that comprises a first region, a second region, and a third region located between the first region and the second region;
a first insulating film that is disposed on the first electrode and comprises a first opening for exposing the first and second regions;
a second electrode that is disposed on the first insulating film and comprises a fourth region overlapping the third region;
a second insulating film that is disposed on the second electrode and comprises a second opening for exposing the first, second and fourth regions; and
a third electrode that is disposed on the second insulating film and is connected to at least one of the first region and the second region, and the fourth region.
13. The display device of claim 12 , wherein the second electrode does not overlap the first and second regions.
14. The display device of claim 12 , wherein the third electrode comprises a transparent conductive material.
15. The display device of claim 12 , further comprising:
a gate line that is disposed on the same layer as the first electrode and extends in a first direction;
a data line that is disposed on the same layer as the second electrode, and extends in in a second direction different from the first direction; and
a pixel electrode disposed on the same layer as the third electrode.
16. The display device of claim 15 , wherein the first electrode extends in the first direction, and the third electrode extends in the second direction.
17. The display device of claim 15 , wherein the pixel electrode comprises:
a first sub-pixel electrode connected to a first switching element, the first switching element being connected to the gate line and the data line, and
a second sub-pixel electrode connected to a second switching element, the second switching element being connected to the gate line and the data line,
wherein the display device further comprising a third switching element connected to the second sub-pixel electrode, the gate line and the first electrode, and
wherein the first electrode is a storage line and the second electrode is a source electrode of the third switching element.
18. The display device of claim 12 , further comprising:
an organic insulating film that is disposed on the second insulating film and exposes the first, second and fourth regions,
wherein the third electrode is disposed on the organic insulating layer and is in contact with the first, second and fourth regions.
19. The display device of claim 12 , wherein the widths of the first and second regions are not zero.
20. The display device of claim 12 , wherein the width of the first region is identical to or different from the width of the second region.