A pixel structure, an array substrate and a display device are provided. The invention relates to the field of liquid crystal display technology, and can solve the problem of large shadow zones formed between slit electrodes in the existing pixel structure. The pixel structure of the invention comprises a slit electrode and a plate electrode. The slit electrode includes at least two layers, each of which includes a plurality of strip-shaped electrode sections and a plurality of slits located between the adjacent electrode sections, the electrode sections in an upper layer are positioned over the slits in a lower layer, projections of the electrode sections in the layers on a substrate are not overlapped with each other, and the layers are separated from each other by a first insulation layer. The plate electrode is provided under the slit electrode and separated from the slit electrode by a second insulation layer.