Organic electroluminescent device and a method of manufacturing thereof

A method of manufacturing an organic electroluminescent device comprising a plurality of independently addressable electroluminescent elements, said method comprising:

• providing a patterned first electrode layer including a plurality of first electrodes;
• providing a relief pattern extending along each first electrode, and between neighboring the first electrodes;
• depositing a fluid layer including organic charge transport material or a precursor material thereof;
• converting the fluid layer into an organic charge transport layer having mutually separate charge transport areas which are positioned between the electroluminescent layer and the first electrode layer and which are mutually separated along each first electrode and between neighboring the first electrodes;
• providing at least one, optionally patterned, electroluminescent layer;
• and
• providing an, optionally patterned, second electrode layer.

A method of manufacturing an organic electroluminescent device comprising a plurality of independently addressable electroluminescent elements, said method comprising:

• providing a patterned first electrode layer comprising a plurality of first electrodes;
• providing a relief pattern extending between and along neighboring the first electrodes;
• depositing a fluid layer non-selectively in a quantity sufficient to flood both the plurality of first electrodes and the relief pattern, the fluid layer including organic charge transport material or a precursor material thereof;
• converting the fluid layer into an organic charge transport layer having mutually separate charge transport areas which are positioned between the electroluminescent layer and the first electrode layer and which are mutually separated along neighboring the first electrodes,
• wherein, during the conversion, the fluid layer breaks up in mutually separate fluid areas which extend between and along the relief pattern, which the fluid areas are then converted into the mutually separate charge transport areas;
• providing at least one, optionally patterned, electroluminescent layer;
• and
• providing an, optionally patterned, second electrode layer.