Large-area organic electroluminescence area light source and electrode extraction method thereof

Disclosed are a large-area organic electroluminescence area light source and an electrode extraction method thereof. The large-area organic electroluminescence area light source comprises an ITO (indium tin oxide) glass substrate, an organic material layer and a metal electrode layer. ITO is disturbed in a arrayed block form on the ITO glass substrate and the upper end of the ITO is distributed in a strip form. A metal heat conducting functional layer is distributed in a strip form on the ITO glass substrate and form an anode along with the ITO. The organic material layer is evaporated on the ITO and the metal heat conducting functional layer. The metal electrode layer is completely evaporated on the organic material layer to from a cathode. The electrode extraction method is characterized in that regular patterns of the ITO distributed in the arrayed block form on the ITO glass substrate can be square and of various shapes such as 'E' shape in a visual testing chart in actual application. By the heat conduct