The present disclosure provides a substrate, a display panel and a display device, for increasing the display viewing angle of the display device, reducing chromatic aberration, and improving product quality. The substrate comprises a plurality of gate lines, a plurality of data lines, and a plurality of common electrode lines extending in a first direction, the plurality of gate lines and the plurality of data lines being arranged to cross one another, a thin film transistor being provided at a crossing position where the gate line and the data line cross each other, a drain electrode of the thin film transistor comprising at least two connection portions each connected with one corresponding pixel electrode, the thin film transistor and the corresponding pixel electrode controlled by the thin film transistor composing a pixel unit, wherein: the plurality of common electrode lines extending in the first direction are divided into several repeated groups; and the substrate further comprises: a plurality of connection wirings located within a peripheral region of the substrate and extending in a second direction, the plurality of connection wirings extending in the second direction being respectively connected with the ones, having corresponding sequence number, in respective repeated group of the plurality of common electrode lines extending in the first direction.