Patent ID: 11900872
Assignee: SHARP KABUSHIKI KAISHA
Field: Audio-visual technology (Electrical engineering)
Classification: CPC G | IPC G

Claim 16:
17. The display device according to claim 16,
wherein the pixel circuit includes
the display element including a first terminal and a second terminal,
the drive transistor including a control terminal, a first conduction terminal, and a second conduction terminal,
a writing control transistor including a control terminal connected to the scanning signal line, a first conduction terminal connected to the data signal line, and a second conduction terminal connected to the control terminal of the drive transistor,
a monitoring control transistor including a control terminal connected to the monitoring control line, a first conduction terminal connected to the second conduction terminal of the drive transistor and the first terminal of the display element, and a second conduction terminal connected to the data signal line, and
a capacitive element connected, at one end, to the control terminal of the drive transistor and configured to hold a potential of the control terminal of the drive transistor,

the monitoring period includes at least an initialization period in which the pixel circuit is initialized, a first writing period in which a data signal for causing a current depending on characteristics of the drive transistor or the display element to flow is written to the pixel circuit, a measurement period in which the current is measured outside the pixel circuit, and a second writing period in which a data signal for image display is written to the pixel circuit,
in the row, of the n rows, being a target of the monitoring processing,
in the initialization period, the scanning signal is applied to the scanning signal line such that the writing control transistor is turned on, the monitoring control signal is applied to the monitoring control line such that the monitoring control transistor is turned on, and the data signal is applied to the data signal line such that the drive transistor is turned off,
in the first writing period, the monitoring control signal is applied to the monitoring control line such that the monitoring control transistor is turned off, and
in the measurement period, the scanning signal is applied to the scanning signal line such that the writing control transistor is turned off, and the monitoring control signal is applied to the monitoring control line such that the monitoring control transistor is turned on.