Patent ID: 7307463
Filing Date: 2007-12-11
Classification: G09G,G11C,H03F

Abstract:
1. A source follower comprising: a transistor; a capacitor comprising a first electrode and a second electrode; a constant current supply connected to a source of the transistor; and a plurality of switching elements which can select any one of first to third modes, wherein in the first mode, a first potential is supplied to a gate of the transistor and an input potential is supplied to the first electrode, respectively, and the second electrode and the source of the transistor are connected; wherein in the second mode, an input potential is supplied to the first electrode, and the gate of the transistor and a potential of the second electrode floats, and wherein in the third mode, the first electrode and the gate of the transistor are connected, and a potential thereof floats and a second potential is supplied to the second electrode.