Patent ID: 9153172
Filing Date: 2015-10-06
Classification: G09G

Abstract:
1. A display system, comprising: a substrate; a plurality of pixel circuits arranged on the substrate in rows and columns, each of the pixel circuits including a capacitor, a switch transistor connected to a signal line for transferring programming data to be stored in the capacitor as a corresponding voltage, and a driving transistor connected to a light emitting device for emitting light according to the voltage stored in the capacitor, the driving transistor having a terminal connected to a voltage supply line; a plurality of signal lines on the substrate, each connected to corresponding ones of the pixel circuits; a plurality of voltage supply lines each arranged on the substrate to intersect perpendicularly the plurality of signal lines; and a top electrode on the pixel circuits, wherein, in each of the pixel circuits, a gate of the driving transistor is connected directly to the switch transistor, a drain of the driving transistor is connected to a first of the plurality of voltage supply lines, and where, during a programming cycle that includes transferring the programming data from the signal line to the capacitor, the first voltage supply line is adjusted to adjust a voltage of the gate of the driving transistor to cause a gate-source voltage of the driving transistor to be stored in the capacitor as the gate of the driving transistor remains connected to the signal line through the switch transistor.