Display device
A display device is provided and includes a substrate on which a TFT is formed. The display device including an organic film formed on the TFT, the organic film having a through hole, and a first common electrode, an upper pixel electrode and a second common electrode which are stacked in this order above the organic passivation film, a filler being filled in the through hole, and wherein the upper pixel electrode is electrically connected with the TFT, and an edge of the upper pixel electrode is located directly on the filler.
1. A display device including a substrate on which a TFT is formed, the display device comprising,
an organic film formed on the TFT, the organic film having a through hole, and
a first common electrode, an upper pixel electrode and a second common electrode which are stacked in this order above the organic film, a filler being filled in the through hole, and
wherein the upper pixel electrode is electrically connected with the TFT, and
an edge of the upper pixel electrode is located directly on the filler.
2. The display device according to claim 1 , further comprising
a lower pixel electrode disposed between the organic film and the first common electrode, wherein
the lower pixel electrode is connected with the TFT via the through hole, and connected with the upper pixel electrode outside the through hole.
3. The display device according to claim 2 , wherein
a first insulating film is formed between the lower pixel electrode and the first common electrode to form a first capacitance,
a second insulating film is formed between the first common electrode and the upper pixel electrode to form a second capacitance,
a third insulating film is formed between the upper pixel electrode and the second common electrode to form a third capacitance, and
the first capacitance, the second capacitance and the third capacitance are connected to each other in parallel.
4. The display device according to claim 1 , wherein
a distance between an upper surface of the filler and the substrate is smaller than a distance between an upper part of the organic film and the substrate.
5. The display device according to claim 1 , wherein
a taper angle of the through hole is 70 degrees or more and 90 degrees or less.
6. The display device according to claim 1 , wherein
a taper angle of the through hole is 80 degrees or more and 90 degrees or less.
7. The display device according to claim 1 , wherein
the lower pixel electrode, the first common electrode, the upper pixel electrode and the second common electrode are formed of ITO.
8. The display device according to claim 6 , wherein
the first common electrode is a laminated structure of an ITO film and a metal film.
9. The display device according to claim 1 , further comprising:
in a plan view, a gap is formed between the upper pixel electrode and an upper pixel electrode of an adjacent pixel above the filler.
10. The display device according to claim 9 , wherein
an edge of the upper pixel electrode of the adjacent pixel is located directly on the filler.
11. The display device according to claim 1 , wherein
a second insulating film is formed between the first common electrode and the upper pixel electrode to form a second capacitance,
a third insulating film is formed between the upper pixel electrode and the second common electrode to form a third capacitance, and
the second capacitance and the third capacitance are connected to each other in parallel.
12. The display device according to claim 1 , wherein
the first common electrode, the upper pixel electrode and the second common electrode are formed of ITO.