Display device

A display device comprising:

• a substrate;
• a thin film transistor positioned on the substrate and including a source electrode, a drain electrode, and an active layer positioned between the source electrode and the drain electrode;
• a gate electrode positioned on the thin film transistor and overlapping the active layer in a plan view;
• an insulating layer positioned on the gate electrode;
• and
• a gate cover layer positioned between side surfaces of the gate electrode and the insulating layer,
• wherein the gate cover layer includes a first portion and a second portion and exposes an upper surface of the gate electrode, and the second portion is spaced apart from the first portion,
• the first portion includes a first surface facing the insulating layer, and
• the upper surface of the gate electrode and the first surface of the first portion are aligned with each other in a direction parallel to a major surface of the substrate.