A backplane substrate and a flexible display having the same are provided. The backplane substrate includes a flexible base film having an active area with a plurality of sub-pixels and a non-display area around the active area; and an interlayer insulating film on flexible base film and including a plurality of connection holes provided in first columns and second columns with each of the first and second columns arranged in a first direction of the flexible base film. When the flexible base film is folded along a folding axis in a direction intersecting the first and second columns, the folding axis intersects at least one connection hole of the first and second columns.