摘要 |
The invention relates to an organic light emitting diode device (1) comprising a substrate material (10) as a carrier, which is coated and/or superimposed by a lower electrode layer (11), at least one emitting material layer (12) for light emitting and an upper electrode layer (13), whereas the upper electrode layer (13) features light reflectance, in order to pass the emitted light through the substrate material (10), whereas said device (1) comprises a light sensor (14) for detecting the luminous intensity of the emitted light.
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