Driving substrate, method for fabricating same, and display panel

A display panel, comprising a driving substrate, wherein the driving substrate comprises:

• a substrate;
• a source electrode and a drain electrode disposed on the substrate, wherein there is a first space between the source electrode and the drain electrode;
• an active layer disposed on the substrate, the source electrode, and the drain electrode, and comprising a channel and a source region and a drain region on both sides of the channel, wherein the source region covers at least part of the source electrode, the drain region covers at least part of the drain electrode, and the channel corresponds to the first space;
• and
• a gate electrode disposed on a side of the active layer away from the source electrode and the drain electrode, and disposed corresponding to the active layer, wherein an orthographic projection of the gate electrode on the substrate covers an orthographic projection of the channel of the active layer on the substrate, covers an orthographic projection of at least part of the source region of the active layer on the substrate, and covers an orthographic projection of at least part of the drain region of the active layer on the substrate.

A method for fabricating a driving substrate, comprising:

• providing a substrate;
• forming a source electrode and a drain electrode on the substrate, wherein there is a first space between the source electrode and the drain electrode;
• forming an active layer on the substrate, the source electrode, and the drain electrode, wherein the active layer comprises a channel and a source region and a drain region on both sides of the channel, the source region covers at least part of the source electrode, the drain region covers at least part of the drain electrode, and the channel corresponds to the first space;
• and
• forming a gate electrode on a side of the active layer away from the substrate, wherein an orthographic projection of the gate electrode on the substrate covers an orthographic projection of the channel of the active layer on the substrate, covers an orthographic projection of at least part of the source region of the active layer on the substrate, and covers an orthographic projection of at least part of the drain region of the active layer on the substrate.