Patent ID: 8144146
Filing Date: 2012-03-27
Classification: G09G

Abstract:
1. A display device comprising: a substrate; a panel comprising: 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.