An array substrate, a display panel and a display device are provided. The array substrate includes a display region and a border region. The border region includes a first border and a second border arranged oppositely in a first direction. The display region includes a hollowed-out region, a second sub-display region and a primary display region, a data drive port located in the border region and data lines extended in the first direction. The data lines include second data lines located in the second sub-display region and auxiliary data lines located in the primary display region. The data drive port provides a data signal to sub-pixels in the second sub-display region through the auxiliary data lines and the second data lines.