Organic light-emitting display device
Provided is an organic light-emitting display (OLED) device. The organic light-emitting display (OLED) device includes a substrate; a shielding pattern; a buffer layer covering the shielding pattern and including a first contact hole and a second contact hole; a thin film transistor electrically connected to the shielding pattern through the first contact hole; a conductive material located on the thin film transistor; an insulating film covering the conductive material and including a third contact; a first electrode located on the insulating film and electrically connected to the shielding pattern; a bank covering the first electrode and including an opening against the conductive material; and an organic light emitting layer located on the first electrode while corresponding to the opening.
1. An organic light-emitting display device, comprising:
a substrate;
a shielding pattern located on the substrate;
a buffer layer covering the shielding pattern and including a first contact hole and a second contact hole;
a thin film transistor located on the buffer layer and electrically connected to the shielding pattern through the first contact hole;
a conductive material located on the thin film transistor;
an insulating film covering the conductive material and including a third contact hole corresponding to the second contact hole;
a first electrode located on the insulating film and electrically connected to the shielding pattern through the second contact hole and the third contact hole;
a first bank portion covering a first portion of the first electrode;
a second bank portion covering a second portion of the first electrode;
an opening formed between the first and second bank portions; and
an organic light emitting layer located on the first electrode in the opening between the bank portions.
2. The organic light-emitting display device according to claim 1 , wherein the conductive material includes a first conductive material and a second conductive material, and the first conductive material is electrically connected to the thin film transistor.
3. The organic light-emitting display device according to claim 2 , wherein the second conductive material includes a gate insulating film thereunder and is electrically connected to an active layer included in the thin film transistor.
4. The organic light-emitting display device according to claim 3 , wherein the first conductive material is formed of the same material as the second conductive material.
5. The organic light-emitting display device according to claim 4 , wherein the second conductive material is a gate material.
6. The organic light-emitting display device according to claim 3 , wherein the shielding pattern is a source electrode or a drain electrode electrically connected to the active layer.
7. The organic light-emitting display device according to claim 6 , wherein the shielding pattern is further located on one side of the substrate and receives an external signal.
8. The organic light-emitting display device according to claim 7 , wherein the shielding pattern is formed of the same material as the conductive material.
9. The organic light-emitting display device according to claim 1 , further comprising:
a first auxiliary bank located on the first bank portion; and
a second auxiliary bank located on the second bank portion.
10. The organic light-emitting display device according to claim 9 , wherein a height of the first and second auxiliary banks are higher than a height of the respective first and second bank portions.
11. The organic light-emitting display device according to claim 10 , wherein the organic light emitting layer covers a side surface and a top surface of the first bank portion and a part of a side surface of the first auxiliary bank.
12. The organic light-emitting display device according to claim 10 , wherein the organic light emitting layer covers a side surface and a top surface of the second bank portion and a part of a side surface of the second auxiliary bank.
13. The organic light-emitting display device according to claim 10 , wherein the first bank portion and the second bank portion are provided as one body having a matrix structure.
14. The organic light-emitting display device according to claim 13 , wherein the first and second auxiliary banks have a tapered shape.
15. The organic light-emitting display device according to claim 9 , wherein the first and second bank portions are formed of a hydrophilic organic insulating material, and the first and second auxiliary banks are formed of a hydrophobic organic insulating material.
16. The organic light-emitting display device according to claim 15 , wherein a top surface of the first and second auxiliary banks have a hydrophobic property to suppress spread of the organic light emitting layer.