DRIVING BACKPLANE AND METHOD FOR MANUFACTURING THE SAME, AND DISPLAY DEVICE

A driving backplane includes a substrate, pad groups and line groups. A line of each line group is connected to a pad of a pad group. At least one pad of a pad group and a line connected thereto define line hollowed-out regions. The line hollowed-out regions include a first line hollowed-out region and a second line hollowed-out region that are disposed on two sides of the pad(s) in a second direction. The driving backplane further includes a reflective layer covering a first surface of the substrate and the line groups. Each window region in the reflective layer includes a first region, a second region and a third region that are arranged in the second direction. The second region exposes a pad group and a pad spacer region corresponding to the pad group, and the first region and the third region expose portions of the first surface of the substrate.