Organic light emitting display device with an outer circumferentially array of flexible printed circuit board and coupling pads
View Patent ↗An organic light emitting display which minimizes the IR drop of voltages supplied to an organic light emitting display panel includes an organic light emitting display panel having a pixel unit on which an image is displayed and first and second power source pads provided at two or more edges outside the pixel unit to receive first and second voltages from at least two directions, and a voltage supplier Flexible Printed Circuit Board (FPCB) including pads electrically coupled to the first and second power source pads and arranged on the outer circumference of the organic light emitting display so as not to overlap with the pixel unit.
1. An organic light emitting display device, comprising:
an organic light emitting display panel comprising a pixel unit which displays an image and a plurality of first and second power source pads which are disposed outside the pixel unit and are disposed at two or more edges of the organic light emitting display panel, the organic light emitting display panel receiving each of first and second voltages from at least two different directions; and
a voltage supplier Flexible Printed Circuit Board (FPCB) comprising a plurality of pads which are respectively electrically coupled to the plurality of first and second power source pads, the voltage supplier FPCB being arranged on an outer circumference of the organic light emitting display device to not overlap the pixel unit.
2. The organic light emitting display device as claimed in claim 1 , wherein the plurality of first power source pads are formed respectively at a first edge of one side of the organic light emitting display panel and a second edge thereof facing the first edge and wherein the plurality of second power source pads are formed respectively at a third edge of one side of the organic light emitting display panel and a fourth edge thereof facing the third edge.
3. The organic light emitting display device as claimed in claim 2 , wherein a plurality of the first power source pads are formed at the first and second edges.
4. The organic light emitting display device as claimed in claim 2 , wherein a plurality of the second power source pads are formed at the third and fourth edges.
5. The organic light emitting display device as claimed in claim 1 , wherein the plurality of first and second power source pads are formed at different edges of one side of the organic light emitting display panel.
6. The organic light emitting display device as claimed in claim 1 , wherein each of the plurality of first and second power source pads receives the first and second voltages respectively from both directions of the voltage supplier FPCB.
7. The organic light emitting display device as claimed in claim 1 , wherein a plurality of signal pads to supply driving signals to the pixel unit are formed between the plurality of first and second power source pads.
8. The organic light emitting display device as claimed in claim 7 , further comprising:
a driving Flexible Printed Circuit Board (FPCB) electrically coupled to the signal pads and provided independently from the voltage supplier FPCB; and
a driving board electrically coupled to the driving FPCB to drive the driving FPCB.
9. The organic light emitting display device as claimed in claim 8 , wherein the driving board is arranged to not overlap the pixel unit.
10. The organic light emitting display device as claimed in claim 9 , wherein the driving board is arranged on the outer circumference of the organic light emitting display panel.
11. The organic light emitting display device as claimed in claim 8 , wherein the driving board is electrically coupled to the voltage supplier FPCB to supply the first and second voltages to the voltage supplier FPCB.
12. The organic light emitting display device as claimed in claim 8 , wherein the driving FPCB comprises at least one of a scan driver and a data driver and supplies at least one of a scan signal and a data signal to the pixel unit.
13. The organic light emitting display device as claimed in claim 1 , wherein the pixel unit emits light from both sides thereof.