4.2: TFT AMOLED Pixel Circuits and Driving Methods

Active matrix organic light emitting diode AMOLED displays are now entering the market place. TFT active matrix allow OLED displays to be larger in size, higher in resolution and lower in power dissipation than is possible using a passive matrix. A number of TFT active matrix pixel circuits have been developed for luminance control while correcting for TFT parameter variations. The circuits and driving methods are reviewed. A new driving method is presented