Patent ID: 9489882
Filing Date: 2016-11-08
CPC Classification: G09G,H01L

Claim Text:
1. A method of driving a display, comprising: turning on a first switching thin-film-transistor (TFT) and a second switching TFT in a plurality of pixel circuits to initialize a first node and a second node, during an initialization period; turning on the first switching TFT, during a first part of a sampling period and turning on a third switching TFT, during a second part of the sampling period to sense a threshold voltage of a driving TFT in the plurality of pixel circuits; turning on the first switching TFT to write a data voltage into a storage capacitor in the plurality of pixel circuits, during a programming period; and turning on the third switching TFT to cause the driving TFT to supply drive current to an organic light emitting diodes in the plurality of pixel circuits, during an emission period, wherein the first switching TFT and the second switching TFT are formed of oxide TFT, and wherein the third switching TFT and the driving TFT are formed of poly-silicon TFT.