EP4436334A1 - AN ORGANIC ELECTRONIC DEVICE COMPRISING A SUBSTRATE, AN ANODE LAYER, A CATHODE LAYER, AT LEAST ONE FIRST EMISSION LAYER, AND A HOLE INJECTION LAYER, WHEREIN THE HOLE INJECTION LAYER COMPRISES A COMPOUND OF FORMULA (I) AND A COMPOUND OF FORMULA (III), WHEREIN THE HOLE INJECTION LAYER IS ARRANGED BETWEEN THE ANODE LAYER AND THE AT LEAST ONE FIRST EMISSION LAYER | Patent Bear