Patent ID: 11908408
Assignee: SHARP KABUSHIKI KAISHA
Field: Audio-visual technology (Electrical engineering)
Classification: CPC G | IPC G

Claim 0:
1. A display device comprising:
a display portion including a plurality of scanning lines, a plurality of control lines, and a plurality of pixel circuits; and
a driver circuit configured to drive the scanning lines and the control lines, wherein,
each of the pixel circuits includes:
a light-emitting element;
a drive transistor provided in series with the light-emitting element to control the amount of current flowing through the light-emitting element;
a first compensation transistor connected to a control terminal of the drive transistor at a first conductive terminal, an intermediate node at a second conductive terminal, and one of the scanning lines at a control terminal;
a second compensation transistor having the same conductivity type as the first compensation transistor and connected to the intermediate node at a first conductive terminal, the drive transistor's conductive terminal close to the light-emitting element at a second conductive terminal, and the one of the scanning lines at a control terminal; and
a capacitor connected to the intermediate node at a first electrode and one of the control lines at a second electrode, and

the driver circuit changes a potential of the one of the scanning lines from on to off level and also changes a potential of the one of the control lines from a second level to a first level, in an opposite direction to the change in the potential of the one of the scanning lines, at a time corresponding to the change in the potential of the scanning line, wherein the driver circuit changes the potential of the one of the scanning lines from off to on level, then changes the potential of the one of the control lines from the first level to the second level, then changes the potential of the one of the scanning lines from on to off level, and then changes the potential of the one of the control lines from the second level to the first level.