Patent ID: 9715322
Date: 2017-07-25
CPC Classifications: G06F,G09G

Claim:
1. A display device comprising: a display section that includes a display unit and a touch detection device, the touch detection device incorporated in the display unit in an integrated manner, that has a display operation period to perform a display operation and a touch detection period to perform a touch detection operation, and power consumption of which periodically changes by repeating the display operation period and the touch detection period by a time-divisionally multiplexed method; a power supply circuit that supplies power to the display section via a driver for driving display elements of the display section; a smoothing capacitor that stabilizes power supplied to the driver; and a power consumption unit that consumes power in the power supply circuit in the touch detection period, wherein the driver is a source driver or a gate driver, the power consumption unit includes a switching element that operates in the display operation period and that also operates in the touch detection period to consume power supplied to the gate driver, the switching element includes a first transistor element and a second transistor element, the first and second transistor elements are controlled to be turned ON and OFF in predetermined cycles, respectively, to bring at least one of the first and second transistor elements in an ON state in any timing in the touch detection period, and the predetermined cycles are set according to power consumption of the display section in the display operation period.