Patent ID: 11881531
Assignee: LG DISPLAY CO., LTD.
Field: Semiconductors (Electrical engineering)
Classification: CPC H | IPC H

Claim 18:
19. A thin film transistor array substrate comprising:
a substrate;
a first active layer disposed on the substrate, including a first area, a second area spaced apart from the first area, and a channel area provided between the first area and the second area;
a gate insulating film disposed on the first active layer;
a first gate electrode disposed on the gate insulating film;
a second gate electrode disposed on a same layer as the first gate electrode to overlap one end of the first gate electrode;
an interlayer insulating film disposed on the substrate on which the first gate electrode and the second gate electrode are disposed; and
a first electrode and a second electrode disposed on the interlayer insulating film to be spaced apart from each other,
wherein the first gate electrode and the second gate electrode include materials having different hydrogen formation energies and different hydrogen diffusion bathers.