Organic light emitting device and manufacturing method thereof

An organic light emitting device, comprising:

• a substrate;
• first and second spaced apart ohmic contacts formed on the substrate;
• a driving semiconductor including polysilicon formed on the substrate, the driving semiconductor contacting the first and second ohmic contacts and the driving semiconductor disposed on the substrate and the first and second ohmic contacts;
• a driving input electrode electrically connected to the first ohmic contact and disposed on the driving semiconductor and the first ohmic contact;
• a driving output electrode electrically connected to the second ohmic contact and disposed on the driving semiconductor and the second ohmic contact;
• a first gate insulating layer disposed on the driving semiconductor, the driving input electrode, and the driving output electrode;
• and
• a driving control electrode disposed on the first gate insulating layer, wherein the driving control electrode overlaps the driving semiconductor.