An array substrate, a display panel and a display device are provided. The array substrate includes: a base substrate; a plurality of pixel units in an array on the base substrate; and a first power line and a second power line arranged on the base substrate and configured to respectively provide a first power signal and a second power signal to the pixel units. At least one of the pixel units includes: a first-color light emitting device; a second-color light emitting device; a first pixel driving circuit configured to drive the first-color light emitting device; and a second pixel driving circuit configured to drive the second-color light emitting device. The first pixel driving circuit is electrically connected to the first power line, the second pixel driving circuit is electrically connected to the second power line, the first power line and the second power line are insulated from each other.