Patent ID: 7728828
Filing Date: 2010-06-01
Classification: G09G

Abstract:
1. A unit circuit, comprising: a capacitive element having a first electrode, a second electrode, and a dielectric layer disposed between the first electrode and the second electrode; a transistor having a gate electrode connected to the first electrode, a first terminal, and a second terminal, one of the first terminal and the second terminal being connected to a driven element; a first switching element controlling an electrical connection between the gate electrode of the transistor and the second terminal; and a second switching element connected to the second electrode, a potential of the first electrode being set to a predetermined potential higher, by a threshold voltage of the transistor, than a low potential, by turning on the first switching element, and the potential of the first electrode being set to a first potential by supplying a first operation signal to the second electrode through the turned-on second switching element in a state that the first electrode is electrically isolated from the predetermined potential by turning off the first switching element, a second period, in which the potential of the first electrode is set to the predetermined potential by turning on the first switching element and a second operation signal is supplied to the second electrode through the turned-on second switching element, being provided subsequently to a first period in which the potential of the first electrode is set to the first potential, in a state that the first electrode is electrically isolated from the predetermined potential by turning off the first switching element after the second period is ended, the potential of the first electrode being set to a second potential by supplying a third operation signal, which is a continuation of the second operation signal, to the second electrode through the turned-on second switching element, and the first potential and the second potential having opposite polarities when the predetermined potential is used as a reference potential.