Patent ID: 8094146
Filing Date: 2012-01-10
Classification: G09G

Abstract:
1. A display apparatus, comprising: a pixel array including a plurality of pixel circuits disposed in a matrix and each including a light emitting element, a driving transistor for supplying current in response to a signal value applied between a gate and a source thereof to said light emitting element when a driving voltage is applied between a drain and the source thereof, and a holding capacitor connected between the gate and the source of said driving transistor for holding the input signal value; and a light emission driving section configured to apply the signal value to said holding capacitor of each of said pixel circuits of said pixel array so that the light emitting element of the pixel circuit emits light with a luminance corresponding to the signal value; said light emission driving section driving said pixel circuit to carry out, as light emitting operation of one cycle which includes a no-light emitting period and a light emitting period; ending a light emitting operation of the light emitting element; fixing the gate of the driving transistor to a predetermined potential and applying a driving voltage between the drain and the source of the driving transistor to initialize the gate-source voltage of the driving transistor; canceling the fixation of the gate potential of the driving transistor and ending the application of the driving voltage between the drain and the source of the driving transistor to maintain the initialization state of the gate-source voltage; fixing the gate of the driving transistor to a reference voltage and applying the driving voltage between the drain and the source of the driving transistor to carry out threshold value correction so that the gate-source voltage of the driving transistor may become equal to a threshold voltage of the driving transistor; applying a voltage as a signal value to the holding capacitor and executing a mobility correction operation of the driving transistor; and supplying current corresponding to the gate-source voltage of the driving transistor on which the signal value is reflected to the light emitting element so that emission of light of the light emitting element with a luminance corresponding to the signal value is executed.