公开(公告)号：AT412959T

公开(公告)日：2008-11-15

申请号：AT01272506

申请日：2001-12-21

Applicant: TPO DISPLAYS CORP

Inventor： SANFORD JAMES ,  SCHLIG EUGENE

IPC: G09G1/00 ,  H01L51/50 ,  G09F9/30 ,  G09G3/20 ,  G09G3/30 ,  G09G3/32 ,  G11C11/419 ,  H01L27/32

Abstract: 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 complimentary metal oxide semiconductor (CMOS) circuit for controlling the OLED, a protection circuit for protecting the CMOS circuit from an over-voltage condition, and a current source with a field effect transistor (FET) having a static gate to source voltage that is greater than a threshold voltage of the FET.