A pixel circuit comprises an organic light emitting diode (OLED), and a static memory for storing data that represents an operational state of the OLED. In alternative embodiments, a pixel circuit may include a complementary metal oxide semiconductor (CMOS) circuit for controlling the OLED, a protection...http://www.google.com/patents/US20030179626?utm_source=gb-gplus-sharePatent US20030179626 - Low-power organic light emitting diode pixel circuit
