Organic light emitting diode display device having a two-sided substrate and method of forming the same

A display device (10) built on an insulating substrate (12) suitable for processing on both sides that includes a plurality of conductive through-holes (20) through the substrate (12). One side is reserved for a high-density array (14) of organic light emitting diodes (OLEDs). The OLEDs can be high-density because the electrical connections for the OLEDs are on the other side of the substrate (12) and interconnected via the conductive through-holes (20). The cathode sides (26) of the OLEDs are interconnected by a light transmitting layer (28) overlaying the cathode side that is electrical conductive. On the side of the substrate (12) opposite the OLEDs is an array of anode contacts (32) configured to form an electrical contact with a driver circuit (34).