ARRAY SUBSTRATE, PREPARATION METHOD THEREFOR, AND DISPLAY DEVICE

摘要

An array substrate comprises a base substrate (1) and a thin film transistor unit (2) located on the base substrate (1). The thin film transistor unit (2) comprises: a first gate (21) located on the base substrate (1), a gate insulating layer (22) located on the first gate (21) a source (23) arranged on the same layer as the first gate (21), an active layer (24) located on the source (23), and a drain (25) located on the active layer (24). The gate insulating layer (22) is arranged between the first gate (21) and the source (23). The array substrate reduces the channel length of the conductive channel of the thin film transistor unit (2), and improves the aperture ratio of pixels.