Organic light-emitting display device and method of fabricating the same
An organic light-emitting display device and a method of fabricating the same. The organic light-emitting display device includes: a substrate; a first electrode including a first metal layer disposed on the substrate and formed of titanium (Ti), aluminum (Al), a titanium or aluminum alloy, a second metal layer disposed on the first metal layer, and a transparent conductive layer disposed on the second metal layer; an organic layer disposed on the first electrode and including at least one organic emission layer; and a second electrode disposed on the organic layer. The method includes: forming a first electrode including a first metal layer formed of Ti, Al, or a titanium or aluminum alloy, a second metal layer, and a transparent conductive layer, on a substrate; forming an organic layer including at least one organic emission layer on the first electrode; and forming a second electrode on the organic layer.
1. An organic light-emitting display device, comprising:
a substrate;
a first electrode comprising
a first metal layer on the substrate and formed of titanium (Ti), aluminum (Al), a titanium alloy or an aluminum alloy, the first metal layer having a thickness of 50 Å to 200 Å,
a second metal layer having a thickness of 500 Å to 2000 Å to have reflective properties on the first metal layer, and
a transparent conductive layer on the second metal layer;
an organic layer on the first electrode and comprising at least one organic emission layer; and
a second electrode on the organic layer.
2. The device of claim 1 , wherein the aluminum alloy comprises neodymium (Nd).
3. The device of claim 1 , wherein the second metal layer is formed of silver or a silver alloy.
4. The device of claim 3 , wherein the silver alloy comprises at least one of samarium (Sm), copper (Cu), terbium (Tb), molybdenum (Mo) or tungsten (W).
5. An electronic appliance comprising:
a body comprising electronics; and
the organic light-emitting device of claim 1 mounted on the body.
6. A method of fabricating an organic light-emitting display device, comprising:
forming a first electrode on a substrate, the first electrode comprising:
a first metal layer having a thickness of 50 Å to 200 Å and being formed of titanium (Ti), aluminum (Al), a titanium alloy or an aluminum alloy;
a second metal layer having a thickness of 500 Å to 2000 Å to have reflective properties on the first metal layer; and
a transparent conductive layer on the second metal layer;
forming an organic layer comprising at least one organic emission layer on the first electrode; and
forming a second electrode on the organic layer.
7. The method of claim 6 , wherein the aluminum alloy comprises neodymium (Nd).
8. The method of claim 6 , wherein the second metal layer is formed of silver or a silver alloy.
9. The method of claim 8 , wherein the silver alloy comprises at least one of samarium (Sm), copper (Cu), terbium (Tb), molybdenum (Mo) or tungsten (W).
10. The method of claim 6 , further comprising preparing the substrate.