PATTERNED OLED DEVICE, METHOD OF GENERATING A PATTERNING, SYSTEM FOR PATTERNING AND METHOD OF CALIBRATING THE SYSTEM

摘要

The invention relates to a patterned organic light emitting diode device (10), a method of generating a pattern in an organic light emitting diode device, to a system (200) for generating the patterned organic light emitting diode device, and a method of calibrating the system. The organic light emitting diode device comprises organic light emitting material (20) arranged between an anode layer (30) and a cathode layer (32) and further comprises at least one current support layer (40,...50) for enabling and/or assisting and/or dimensioning a current flowing, in operation, through the light emitting material to cause the light emitting material to emit light. At least a part of the at least one current support layer is patterned by locally altering a current support characteristic of the at least one current supporting layer while not substantially altering the organic light emitting material, the anode layer nor the cathode layer. The current support characteristic locally determines the current flowing through the organic light emitting material in operation. By altering the current support characteristic, a pattern may be created in the organic light emitting diode device which is substantially not visible in an off-state of the organic light emitting diode device, and which is clearly visible as light intensity variations in an on-state of the organic light emitting diode device.