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US09508950B2 Organic light emitting diode 有权
有机发光二极管

Organic light emitting diode
Abstract:
The present specification discloses an organic electroluminescent device including an anode, a cathode, a light emitting layer provided between the cathode and the anode, a first p-type organic material layer provided between the cathode and the light emitting layer, and a first n-type organic material layer provided between the first p-type organic material layer and the light emitting layer.
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