Display device

摘要

To reduce power consumption of a display device with the use of a simple structure and a simple operation. The display device includes an input device. Input of an image signal to a driver circuit is controlled in accordance with an image operation signal output from the input device. Specifically, input of image signals at the time when the input device is not operated is less frequent than that at the time when the input device is operated. Accordingly, display degradation (deterioration of display quality) caused when the display device is used can be prevented and power consumed when the display device is not used can be reduced.

主权项

1. A driving method of a display device including a pixel portion, a driver circuit operationally connected to the pixel portion, a first circuit, and a second circuit:
generating a first signal based on an input signal and inputting the first signal to the first circuit, the first signal having a first frame frequency; generating a second signal based on the input signal and inputting the second signal to the second circuit, the second signal having a second frame frequency lower than the first frame frequency; and inputting one of the first signal and the second signal to the driver circuit and displaying an image based on the one of the first signal and the second signal, wherein the first circuit comprises a first switch, wherein the second circuit comprises a second switch, and wherein one of the first switch and the second switch is turned on and the other of the first switch and the second switch is turned off.