Display device
A display device includes a pixel, a scanning line, a signal line, and a drive circuit configured to be supplied with a first power supply voltage signal of a positive value and a second power supply voltage signal of a negative value. The drive circuit includes: a gate driver configured to supply a scanning signal to the scanning line; a signal line selection circuit configured to supply a pixel signal to the signal line; and a display control circuit. The display control circuit is configured to, at first time in a power-off sequence, supply the first power supply voltage signal to the scanning line, supply a GND potential to the common electrode, and supply an adjustment potential of a positive value to the signal line. The display control circuit is configured to supply the GND potential to the scanning line at second time after the first time.
1. A display device comprising:
a pixel comprising a pixel transistor and a pixel electrode coupled to a drain of the pixel transistor;
a scanning line coupled to a gate of the pixel transistor;
a signal line coupled to a source of the pixel transistor; and
a drive circuit configured to be supplied with a first power supply voltage signal of a positive value and a second power supply voltage signal of a negative value to drive the pixel transistor,
wherein the drive circuit comprises:
a gate driver configured to supply a scanning signal to the scanning line;
a signal line selection circuit configured to supply a pixel signal to the signal line; and
a display control circuit configured to control the gate driver and the signal line selection circuit,
wherein a holding capacitance is provided between the pixel electrode and a common electrode supplied with a common potential lower than a GND potential in a display operation,
wherein the display control circuit is configured to, at a first time in a power-off sequence, supply the first power supply voltage signal to the scanning line, supply the GND potential to the common electrode, and supply an adjustment potential of a positive value to the signal line, and
wherein the display control circuit is configured to supply the GND potential to the scanning line at a second time after the first time.
2. The display device according to claim 1 ,
wherein the display control circuit maintains a state of supplying the adjustment potential to the signal line during a period from the first time to at least the second time.
3. The display device according to claim 1 ,
wherein the drive circuit comprises a switch circuit configured to supply the adjustment potential to the signal line during a period from the first time to at least the second time, and
wherein the display control circuit turns off the signal line selection circuit during a period from the first time to at least the second time.
4. The display device according to claim 1 , further comprising a driver IC including at least the display control circuit.