A flexible display panel includes a flexible substrate including a first region configured to receive a first stress and a second region configured to receive a second stress less than the first stress. The second region is located in a first direction from the first region. The flexible substrate further includes a conductive layer including a columnar conductive portion and a polycrystalline conductive portion. The columnar conductive portion is disposed on the first region of the flexible substrate and includes conductive columns, and the polycrystalline conductive portion is disposed on the second region of the flexible substrate and includes polycrystalline particles.