Organic light emitting display including an auxiliary electrode
View Patent ↗Disclosed are an organic light emitting display and a method of manufacturing the same. The organic light emitting includes a first substrate, a first electrode, an organic light emitting layer, and a second electrode. The first substrate includes a pixel region showing an image and a peripheral region surrounding the pixel region. The first electrode is formed in the pixel region of the first substrate. The organic light emitting layer is formed on the first electrode. The second electrode is formed on the organic light emitting layer and extends to the peripheral region. An auxiliary electrode is formed on the second electrode to contact the second electrode on an entire surface of the first substrate, thereby applying a voltage having the same voltage level as that of the second electrode.
1. An organic light emitting display, comprising:
a first substrate comprising a pixel region to display an image and a peripheral region surrounding the pixel region;
a first electrode arranged in the pixel region;
an organic light emitting layer arranged on the first electrode;
a second electrode arranged on the organic light emitting layer, the second electrode extending to the peripheral region;
a common voltage line arranged in the peripheral region of the first substrate, the common voltage line being connected to the second electrode to apply a voltage to the second electrode;
an auxiliary electrode arranged on the second electrode and connected to the second electrode, the auxiliary electrode being connected to the common voltage line in the peripheral region of the first substrate; and
an auxiliary electrode line arranged in the peripheral region of the first substrate, the auxiliary electrode line being connected to the auxiliary electrode to apply a voltage to the auxiliary electrode,
wherein the common voltage line and the auxiliary electrode line are arranged directly on the same layer.
2. The organic light emitting display of claim 1 , wherein the auxiliary electrode line and the common voltage line have the same level of applied voltage.
3. The organic light emitting display of claim 1 , wherein the common voltage line and the auxiliary electrode line are connected to one voltage source.
4. The organic light emitting display of claim 1 , wherein the auxiliary electrode comprises a plurality of opening patterns.
5. The organic light emitting display of claim 1 , wherein the auxiliary electrode comprises an oxide conductor.
6. The organic light emitting display of claim 5 , wherein the oxide conductor comprises one of indium tin oxide, tin oxide, and zinc oxide doped with aluminum.
7. The organic light emitting display of claim 1 , wherein the auxiliary electrode is a metal thin film.
8. The organic light emitting display of claim 1 , wherein the auxiliary electrode comprises a conductive organic material.
9. The organic light emitting display of claim 1 , further comprising:
a filler arranged on the auxiliary electrode; and
a second substrate arranged on the filler.
10. The organic light emitting display of claim 9 , further comprising a sealant, the sealant disposed between the first and second substrates.
11. The organic light emitting display of claim 10 , wherein the sealant comprises a conductive material, and a portion of the auxiliary electrode line contacts the sealant.
12. The organic light emitting display of claim 11 , wherein the pixel region is surrounded by the auxiliary electrode line along the sealant.
13. The organic light emitting display of claim 11 , wherein the auxiliary electrode line is divided into a plurality of lines.
14. The organic light emitting display of claim 1 , further comprising a connection pad arranged on the common voltage line and the auxiliary electrode line, the connection pad contacting the second electrode and the auxiliary electrode.
15. The organic light emitting display of claim 1 , further comprising a thin film transistor arranged on the first substrate,
the thin film transistor comprising:
a gate electrode arranged on the first substrate;
a gate insulating layer arranged on the gate electrode;
a semiconductor layer arranged on the gate insulating layer; and
a source electrode and a drain electrode separated from the source electrode, the source electrode and the drain electrode being arranged on the semiconductor layer, and the drain electrode being connected to the first electrode.
16. The organic light emitting display of claim 15 , wherein the common voltage line and the auxiliary electrode line are arranged directly on the same layer as the source electrode and the drain electrode.