Patent ID: 7145379
Filing Date: 2006-12-05
Classification: G09G

Abstract:
1. A current driver integrated on a semiconductor chip, comprising: a first current distribution MISFET of a first conductivity type, a source of the first current distribution MISFET being supplied with a supply voltage; a first current input MISFET of a second conductivity type, a drain of the first current input MISFET being electrically connected to a drain of the first current distribution MISFET, the drain and a gate electrode of the first current input MISFET being electrically connected to each other; a second current input MISFET of the second conductivity type, a gate electrode of the second current input MISFET being electrically connected to the gate electrode of the first current input MISFET, a drain and the gate electrode of the second current input MISFET being electrically connected to each other; a plurality of current supply sections each including a current source MISFET of the second conductivity type, electrodes of a plurality of current source MISFETs of the plurality of current supply sections being electrically connected to the gate electrodes of the first and second current input MISFETs; a second current distribution MISFET of the first conductivity type, a gate electrode of the second current distribution MISFET being electrically connected to a gate electrode of the first current distribution MISFET, a drain of the second current distribution MISFET being electrically connected to the drain of the second current input MISFET; a third current distribution MISFET of the first conductivity type provided adjacent to the second current distribution MISFET, a gate electrode of the third current distribution MISFET being electrically connected to the gate electrodes of the first current distribution MISFET and the second current distribution MISFET; and a first current output terminal being electrically connected to a drain of the third current distribution MISFET.