Display device and method for driving display device

摘要

A display device (10) includes a timing control section (13) and a signal line drive circuit (16), either of which receives a lower power supply voltage level than the other, and a level changing circuit (20) for changing an amplitude level (T) of a reset signal (B). The timing control section (13) and the level changing circuit (20) receive the reset signal (B). The level changing circuit (20) changes the amplitude level (T) of the supplied reset signal (B) and then supply, to the signal line drive circuit (16), a reset signal (Ba) with a converted amplitude level. This makes it possible to achieve an image display with low power consumption and a stable display quality.

主权项

1. A display device including a timing controller circuit generating a sync signal for image display operation, a signal line drive circuit generating image information for image display operation, a plurality of data signal lines connected to the signal line drive circuit, and supplying, in response to the sync signal generated by the timing controller circuit, the image information generated to each of the plurality of data signal lines, wherein
one of power supply voltage levels to be supplied to either the timing controller circuit or the signal line drive circuit is lower than the other-power supply voltage level; and the display device comprises: a level changing circuit changing a voltage level of an externally supplied reset signal, the reset signal being for initializing internal circuitry of the display device; the timing controller circuit receiving the externally supplied reset signal as such, and the signal line drive circuit receiving the reset signal whose voltage level has been changed by the level changing circuit; a power supply voltage level to be supplied to the signal line drive circuit is lower than a power supply voltage level to be supplied to the timing controller circuit; and the level changing circuit reduces the voltage level of the supplied reset signal so as to supply the reset signal with a reduced voltage to the signal line drive circuit.