Abstract text

A process for producing an active matrix organic light-emitting diode (AMOLED) display is provided. The process includes steps of providing a substrate; forming an active matrix structure having a first semiconductor layer on the substrate; and forming a driving circuit structure having a second semiconductor layer on the substrate wherein the grain size of the second semiconductor layer is larger than that of the first semiconductor layer. The planar display with improved uniform luminance generated from the process is also provided. It includes the substrate; the active matrix structure having the first semiconductor layer with smaller grain size; and the driving circuit structure having the second semiconductor with larger grain size.