Patent ID: 8144146

Claim:
A display device comprising: a substrate; a panel comprising: a source driver circuit comprising: a latch circuit; a selection signal line; an inverter; an analog switch configured to control electrical connection between the latch circuit and a source signal line; and a transistor configured to control electrical connection between a power source and the source signal line; a first gate driver circuit comprising: a first selection circuit comprising: a first tristate buffer; a second gate driver circuit comprising: a second selection circuit comprising: a second tristate buffer; and a pixel region comprising a pixel comprising: a light emitting element over the substrate; and a first transistor over the substrate, electrically connected to the first selection circuit via a gate signal line, and to the second selection circuit via the gate signal line; a monitoring circuit comprising a monitoring light emitting element; a constant current source electrically connected to the monitoring light emitting element; a power source circuit electrically connected to the light emitting element; a correction data forming circuit electrically connected to the monitoring light emitting element and the power source circuit; a memory circuit for storing voltage-current characteristics of the light emitting element in each of a plurality of lapsed times; and a time-based measurement circuit for measuring time during which the power source circuit supplies a power source to the panel, wherein the correction data forming circuit forms a correction signal based on an output of the memory circuit and an output of the time-based measurement circuit, wherein a first control node of the analog switch is directly electrically connected to the selection signal line, a gate of the transistor, and an input node of the inverter, and wherein a second control node of the analog switch is directly electrically connected to an output node of the inverter.