Patent ID: 8384647

Claim:
A display device comprising: a panel having a plurality of cells each of which can store a charge therein; and a driver circuit which supplies the charge to the panel, wherein the driver circuit includes: a first circuit, a second circuit, a third circuit and a fourth circuit which output voltages of positive polarity or negative polarity with respect to a reference potential for supplying the charge to the cells; a first output signal line to which the voltage having either one of positive polarity and negative polarity is supplied from the first circuit; a second output signal line to which the voltage having the other polarity is supplied from the second circuit; a first switching element which makes the first output signal line and the second output signal line electrically conductive with each other for charge sharing of the first and second output signal lines; a third output signal line to which the voltage having either one of positive polarity and negative polarity is supplied from the third circuit; a fourth output signal line to which the voltage having the other polarity is supplied from the fourth circuit; a second switching element which makes the third output signal line and the fourth output signal line electrically conductive with each other for charge sharing of the third and fourth output signal lines; a third switching element which electrically connects the first circuit to the first output signal line; a fourth switching element which electrically connects the second circuit to the second output signal line; a fifth switching element which electrically connects the third circuit to the third output signal line; and a sixth switching element which electrically connects the fourth circuit to the fourth output signal line, wherein the second switching element is brought into an electrically conductive state after the first switching element is brought into an electrically conductive state, the first switching element is configured to assume an open state so that the first output signal line and the second output signal line are electrically disconnected with each other after charge sharing of the first and second output signal lines, the third switching element is configured to assume a close state so that the first circuit and the first output signal line are electrically connected with each other after the open state of the first switching element, and the fourth switching element is configured to assume a close state so that the second circuit and the second output signal line are electrically connected with each other after the close state of the third switching element.