Patent ID: 11903247
Assignee: SAMSUNG ELECTRONICS CO., LTD.
Field: nan (nan)
Classification: CPC nan | IPC H

Claim 0:
1. A display device, comprising:
a substrate;
a thin film transistor disposed on the substrate; and
a display element disposed on the thin film transistor,
wherein:
the thin film transistor comprises:
an active pattern disposed on the substrate and including a plurality of grains separated by grain boundaries, and having protrusions formed at the grain boundaries, the active pattern having a low surface roughness with a root-mean-square (RMS) value of about 4 nm or less, wherein the thin film transistor has a substantially uniform threshold voltage;
a gate insulation layer disposed on the active pattern, the gate insulation layer having a thickness in a range of about 30 nm to about 200 nm, and being protected from damage by the low surface roughness of the active pattern; and
a gate electrode disposed on the gate insulation layer.