Patent ID: 8786526
Filing Date: 2014-07-22
Classification: G09G

Abstract:
1. An analog gradation-driving active matrix substrate, comprising: pixels each including a current-driven light-emitting element and a drive transistor, the current-driven light-emitting element has a pixel electrode electrically coupled with the drive transistor, the drive transistor supplies a current to the current-driven light-emitting element through the pixel electrode, wherein an adjusting transistor for adjusting a voltage of the pixel electrode is electrically connected to a path for the electric current supplied from the drive transistor to the current-driven light-emitting element; and a first signal line to which a source electrode or a drain electrode of the adjusting transistor is electrically connected is different from a second signal line to which a source electrode or a drain electrode of the drive transistor is electrically connected, wherein a first voltage of the first signal line is lower than a second voltage of the second signal line by a threshold voltage of the drive transistor, the first voltage is applied to the source electrode or the drain electrode of the adjusting transistor, and the second voltage is applied to the source electrode or the drain electrode of the drive transistor.