63.3: High Resolution OTFT-OLED on Plastic Substrate Using Self-organized Process

A high resolution (2 inch, 80 dpi) organic thin-film transistor driven light-emitting diode has been developed on plastic substrate. The pentacene OTFT array was fabricated using self-organized process. The TFT in the array exhibited an average field-effect mobility of ∼1 cm2/Vs, an on/off current ratio of 107, and a threshold voltage of ∼ −8 V after the bank formation with parylene-C / SiNx, which is good enough to drive OLEDs. An AMOLED was driven in the bent state of 100 mm radius.