Thin film transistor device and pixel structure and driving circuit of a display panel

A pixel structure of a display panel, disposed on a substrate, the pixel structure of the display panel comprising:

• a thin film transistor device, comprising:
• a gate electrode;
• a semiconductor channel layer;
• a gate insulating layer, disposed between the gate electrode and the semiconductor channel layer;
• a source electrode and a drain electrode, disposed at two opposite sides of the semiconductor channel layer and partially overlapping the gate electrode, respectively;
• a capacitor electrode, at least partially overlapping the gate electrode;
• and
• a capacitor dielectric layer, disposed between the capacitor electrode and the gate electrode;
• and
• a pixel electrode, electrically connected to the drain electrode and the capacitor electrode, respectively;
• wherein the capacitor electrode, the gate electrode and the capacitor dielectric layer form a capacitor device.

A driving circuit of a display panel, comprising:

• a plurality of driving units, each of the driving units comprising:
• a thin film transistor device, comprising:
• a gate electrode;
• a semiconductor channel layer;
• a gate insulating layer, disposed between the gate electrode and the semiconductor channel layer;
• and
• a source electrode and a drain electrode, disposed at two opposite sides of the semiconductor channel layer and partially overlapping the gate electrode, respectively;
• a capacitor device, comprising:
• a capacitor electrode, at least partially overlapping the gate electrode of the thin film transistor device;
• a capacitor dielectric layer, disposed between the capacitor electrode and the gate electrode;
• and
• the gate electrode of the thin film transistor device.