Patent ID: 7126269

Claim:
An organic electroluminescence device comprising a light-emitting layer comprised of an organic material, said light-emitting layer being positioned between a first electrode and a second electrode, and light from said light-emitting layer being transmitted through at least one of said first electrode and said second electrode, wherein the electrode or electrodes through which light is transmitted being comprised of a semi-transparent reflective layer made of silver alloy and a transparent electrode layer laminated in this order from the side of the light emitting layer, and the light absorbance of the electrode or electrodes on the side of taking out light from the light-emitting layer is not more than 10%; and further wherein said alloy containing silver as a main constituent is an alloy containing 0.3 to 1% by weight of palladium and 0.3 to 1% by weight of copper based on the weight of silver, and magnesium, in an atomic ratio of said silver-palladium-copper alloy to magnesium of from 4:1 to 14:1.