Patent ID: 7575966
Filing Date: 2009-08-18
Classification: H01L

Abstract:
1. A method for fabricating a pixel of an active matrix organic light-emitting diode, comprising: forming a patterned transparent semiconductor layer on a substrate to form at least one first channel layer of a switch thin film transistor, at least one lower electrode of a storage capacitor and at least one second channel layer of a driving thin film transistor, wherein the area of the storage capacitor lower electrode is about 50%˜95% of the pixel area; forming a first dielectric layer over the substrate to serve as a first gate dielectric layer of the switch thin film transistor, a dielectric layer of the storage capacitor and a second gate dielectric layer of the driving thin film transistor; forming a first opaque metal gate of the switch thin film transistor, a second opaque metal gate of the driving thin film transistor and at least one scan line on the first dielectric layer; forming a first source and a first drain of the switch thin film transistor in the first channel layer and forming a second source and a second drain of the driving thin film transistor in the second channel layer; forming a patterned transparent metal layer on the first dielectric layer to serve as an upper electrode of the storage capacitor, wherein the area of the upper electrode is about 50%˜95% of the pixel area; forming a data line over the substrate electrically connected to the first source of the switch thin film transistor; and forming an organic light-emitting diode over the substrate electrically connected to the second drain of the driving thin film transistor.