A display panel for an organic light emitting display including a plurality of anode electrodes and a cathode electrode that is supplied with a predetermined voltage and includes a first portion facing the anode electrodes and a second portion receiving the predetermined voltage and having a different cross section than the first portion. A plurality of light emitting members is arranged between the anode electrodes and the cathode electrode, and a conductive line transmits the predetermined voltage and contacts the second portion of the cathode electrode.
1. A display panel for an organic light emitting display, the panel comprising:
a plurality of anode electrodes;
a cathode electrode that is supplied with a predetermined voltage and includes a first portion facing the anode electrodes and a second portion receiving the predetermined voltage and having a different cross-section than the first portion;
a plurality of light emitting members arranged between the anode electrodes and the cathode electrode; and
a conductive line transmitting the predetermined voltage and contacting the second portion of the cathode electrode.
2. The display panel of claim 1 , wherein the first portion comprises a multiple-layered portion.
3. The display panel of claim 2 , wherein the multiple-layered portion comprises a first layer contacting the light emitting members and a second layer, the first layer being arranged between the anode electrodes and the second layer.
4. The display panel of claim 3 , wherein the first layer is spaced apart from the conductive line.
5. The display panel of claim 4 , wherein the second portion comprises the second layer.
6. The display panel of claim 5 , wherein the first layer has a lower work function than the second layer.
7. The display panel of claim 6 , wherein the first layer comprises an alkali metal or an alkali earth metal.
8. The display panel of claim 7 , wherein the first layer comprises Ba, Ca, or Li.
9. The display panel of claim 5 , wherein the first layer comprises LiF.
10. The display panel of claim 5 , wherein the second layer has a lower resistivity than the first layer.
11. The display panel of claim 5 , wherein the first layer is more oxidizable than the second layer.
12. The display panel of claim 1 , wherein the conductive line has a multiple-layered structure.
13. A display panel for an organic light emitting display, the panel comprising:
a plurality of anode electrodes;
a plurality of light emitting members arranged on the anode electrodes, respectively;
a metal layer including a first portion arranged on the light emitting members and a second portion spaced apart from the light emitting members; and
a conductive line coupled to the second portion of the metal layer,
wherein the conductive line is arranged on a layer that is beneath a layer that the light emitting members are arranged on.
14. The display panel of claim 13 , further comprising an insulating layer arranged on the conductive line and under the light emitting members.
15. The display panel of claim 14 , wherein the insulating layer is arranged under the anode electrodes and has a contact hole exposing the conductive line at least in part.
16. The display panel of claim 15 , further comprising a contact assistant arranged between the conductive line and the metal layer.
17. The display panel of claim 16 , wherein the anode electrodes comprise a transparent material.
18. The display panel of claim 17 , wherein the contact assistant is arranged on the same layer as the anode electrodes.
19. The display panel of claim 13 , further comprising:
a scanning line;
a data line;
a switching transistor coupled to the scanning line and the data line;
a driving transistor coupled to the switching transistor and an anode electrode; and
a capacitor coupled between terminals of the driving transistor.
20. The display panel of claim 19 , wherein the conductive line comprises the same layer as one of the scanning line and the data line.