Patent ID: 9064454
Filing Date: 2015-06-23
Classification: G09G

Abstract:
1. A display device comprising: a light-emitting element; a first capacitor that is connected between first and second contact points; a driving transistor that has a control terminal connected to the second contact point, an input terminal connected to a driving voltage, and an output terminal connected to the light-emitting element; a first switching transistor connected between a data voltage and the first contact point; a second switching transistor connected between the second contact point and the output terminal of the driving transistor; a third switching transistor connected between a reference current source and the output terminal of the driving transistor, wherein one of source and drain electrodes of the third switching transistor is electrically connected to one of source and drain electrodes of the driving transistor; a fourth switching transistor connected between the first contact point and a sustain voltage; and a second capacitor connected between the first contact point and the sustain voltage in parallel with the fourth switching transistor, wherein one of source and drain electrodes of the fourth switching transistor is electrically connected to one terminal of the second capacitor and the other of the source and drain electrodes are electrically connected to another terminal of the second capacitor, wherein the driving voltage is different from the sustain voltage, wherein the data voltage transitions from a low level to a high level and the sustain voltage has the low level.