A display panel and a driving method for the same, and a display device are disclosed. The display panel includes a plurality of display pixels arranged in a first array and black matrixes. Each display pixel includes a first display area; and each black matrix is disposed between two adjacent first display areas. A width of the first display area in a first direction on an array arrangement plane of the first array is smaller than an interval in the first direction between two black matrixes which are adjacent in the first direction.