Patent ID: 11908951
Assignee: LG DISPLAY CO., LTD.
Field: Semiconductors (Electrical engineering)
Classification: CPC H | IPC H

Claim 11:
12. A thin film transistor (TFT) substrate, comprising:
a TFT located on a substrate and including a gate electrode, a first semiconductor layer and a second semiconductor layer, the first semiconductor layer, the gate electrode and the second semiconductor layer vertically stacked, and the first and second semiconductor layers made of polycrystalline silicon,
wherein the first and second semiconductor layers are electrically connected in series to each other, and respectively include first and second channel portions, and
wherein the first channel portion includes a first channel part extending in a first direction, and a second channel part extending in a second direction different from the first direction,
wherein the second channel portion includes a third channel part extending in the first direction and vertically overlapping the first channel part, a fourth channel part extending in a direction different from the first direction and the second direction and not overlapping the second channel part, and the first and third channel parts have a same channel length.