Display device

A display device, comprising:

• a substrate;
• a first gate electrode disposed on the substrate;
• a gate insulating layer disposed on the substrate and the first gate electrode;
• a first active layer disposed on the gate insulating layer and corresponding to the first gate electrode, wherein the first active layer comprises a polysilicon layer;
• a second gate electrode disposed on the gate insulating layer;
• a first insulating layer disposed on the first active layer and the second gate electrode;
• a second active layer disposed on the first insulating layer and corresponding to the second gate electrode, wherein the second active layer comprises a metal oxide layer;
• a first source electrode, a first drain electrode, a second source electrode, and a second drain electrode, wherein the first source electrode and the first drain electrode are disposed on the first insulating layer and electrically connect to the first active layer, and the second source electrode and the second drain electrode are disposed on the second active layer and electrically connect to the second active layer;
• wherein, the first gate electrode, the gate insulating layer, the first active layer, the first insulating layer, the first source electrode and the first drain electrode form a first transistor, the second gate electrode, the first insulating layer, the second active layer, the second source electrode and the second drain electrode form a second transistor;
• and
• a display medium layer disposed on the substrate.