OLED Display with Single Grain Si TFT. (SG-TFT)

OLED is a current based device, which emitted amount of light depends on the current supplied to the device so steady current flow is needed. In Active Matrix Organic Light Emitting Diode (AMOLED) Display. TFTs are used as driving transistors for OLED. Because of the non uniformity of the TFTs, variation in threshold voltage and mobility has a...