An array substrate, a display device and a method for manufacturing an array substrate are provided. The array substrate includes: two first conductive connection strips arranged opposite to each other; and multiple electrode strips arranged between the two first conductive connection strips. The multiple electrode strips are electrically connected to each other via the two first conductive connection strips. Slits are formed between adjacent electrode strips. The multiple electrode strips include at least one electrode strip, of which one end is electrically connected to one of the two first conductive connection strips and another end is spaced at a distance from the other of the two first conductive connection strips to form an opening. The opening is communicated with two adjacent slits.