Patent ID: 8441417
Filing Date: 2013-05-14
Classification: G02B,G09G,H01L,H04B

Abstract:
1. A pixel circuit disposed at intersection of a scanning line and a signal line comprising: an electro-optical element; a holding capacitor; a sampling transistor; a drive transistor; a switching transistor; a first detection transistor; and a second detection transistor, wherein said sampling transistor samples an input signal from said signal line into said holding capacitor; said drive transistor applies current to said electro-optical element depending on the input signal held by said holding capacitor which holds a voltage between a source and a gate of said driving transistor; said switching transistor supplies current from a power supply potential to said drive transistor; and said first and second detection transistors operate to supply a threshold voltage of said drive transistor into said holding capacitor prior to said sampling transistor sampling said input signal into said holding capacitor, wherein said first and second detection transistors are configured to be simultaneously on during at least a portion of a time period prior to an emission period of said electro-optical element.