Thin film transistor array substrate including oxide semiconductor pattern and display device including the same

A display panel comprising:

• a substrate comprising an active area in which a light emitting device is disposed and a non-active area disposed around the active area;
• a driving thin film transistor comprising:
• a first oxide semiconductor pattern disposed on the substrate in the active area;
• a first gate electrode disposed over and overlapped with the first oxide semiconductor pattern;
• a first source electrode and a first drain electrode electrically connected to the first oxide semiconductor pattern;
• and
• a first light shielding pattern comprising a metal pattern and disposed under and overlapped with the first oxide semiconductor pattern, and
• a switching thin film transistor comprising:
• a second oxide semiconductor pattern disposed on the substrate in the active area;
• a second gate electrode disposed over and overlapped with the second oxide semiconductor pattern;
• a second source electrode and a second drain electrode electrically connected to the second oxide semiconductor pattern;
• and
• a second light shielding pattern comprising a metal pattern and disposed under and overlapped with the second oxide semiconductor pattern,
• wherein a thickness of a first insulating layer at between the first oxide semiconductor pattern and the first light shielding pattern is less than a thickness of an insulating layer at between the second oxide semiconductor pattern and the second light shielding pattern.