Array substrate, display panel and display device

An array substrate, comprising:

• a base substrate, and
• a plurality of pixel units which are arranged in an array and provided on the base substrate,
• wherein each of the pixel units comprises a thin-film-transistor, and the thin-film-transistor comprises a gate electrode and a drain electrode;
• the drain electrode comprises a first drain electrode portion, a second drain electrode portion and a first connection portion;
• an extension line of the second drain electrode portion intersects with the first drain electrode portion, and the first connection portion connects the second drain electrode portion and the first drain electrode portion;
• and
• an orthographic projection of the first drain electrode portion on the base substrate and an orthographic projection of the gate electrode on the base substrate are spaced apart, and an orthographic projection of the second drain electrode portion on the base substrate and the orthographic projection of the gate electrode on the base substrate at least partially overlap.