Patent ID: 9007360
Filing Date: 2015-04-14
Classification: G09G,H05B

Abstract:
1. An electrooptic device comprising a scan line, a data line and a pixel circuit provided correspondingly to a crossing of the scan line and the data line, and a driver circuit which drives the pixel circuit, wherein: the pixel circuit includes a driving transistor, a writing transistor electrically coupled with and between a gate of the driving transistor and the data line, a first holding capacitor having one end electrically coupled with the gate of the driving transistor, the first holding capacitor being configured to hold a gate-source voltage of the driving transistor, and a light emitting element which emits light with brightness according to a current provided by the driving transistor; the driver circuit includes a first feeder line, a level shift circuit electrically coupled with the data line, and a driving control circuit which provides the first feeder line with one of a first voltage and a second voltage, the driving control circuit being configured to control operations of the level shift circuit and the pixel circuit; the level shift circuit includes a second holding capacitor, and a switch section; the second holding capacitor has one end coupled with the data line and another end provided with a potential which specifies the brightness of the light emitting element; and the driving control circuit controls the switch section so as to electrically couple the first feeder line with the one end of the second holding capacitor in part or all of a period of time in which the first feeder line is provided with the first voltage, and controls the switch section so as to electrically couple the first feeder line with the other end of the second holding capacitor in part or all of a period of time in which the first feeder line is provided with the second voltage.