Patent ID: 6909409
Filing Date: 2005-06-21
Classification: G09G,H01L

Abstract:
1. An electronic device comprising a source signal line side driver circuit, a gate signal line side driver circuit, a pixel selecting signal line side driver circuit and a pixel portion, wherein: said pixel portion has m source signal lines, k gate signal lines and 2km pixels; each of said m source signal lines has k pixel selecting portions; each of said m source signal lines is electrically connected though said pixel selecting portions to 2k pixels; said 2km pixels each has a switching transistor, an EL driving transistor and an EL element; said switching transistor has a gate electrode electrically connected to any one of said gate signal lines; said switching transistor has impurity regions, one of which is electrically connected to any one of said source signal lines and the other of which is electrically connected to a gate electrode of said EL driving transistor; and said EL driving transistor has impurity regions, one of which is electrically connected to a current supply line and the other of which is electrically connected to one of electrodes of said EL element.