Organic light emitting display and method of fabricating the same

摘要

An organic light emitting display includes: a substrate; a plurality of pixels which are arranged in a matrix on the substrate, each pixel having a switching transistor, a driving transistor, and an organic light emission diode (OLED). Silicon channels in the switching transistor have lower carrier mobility than silicon channels in the driving transistor. The low carrier mobility of amorphous silicon in the switching transistor prevents current leakage and the higher carrier mobility of polycrystalline silicon in the driving transistor provides a high driving speed and an extended lifetime.