Patent ID: 9066379
Filing Date: 2015-06-23
Classification: G09G,H05B

Abstract:
1. A circuit arrangement for organic light-emitting diodes arranged in a two-dimensional matrix in which every organic light-emitting diode can be controlled, the circuit arrangement comprising: a storage circuit, a sense amplifier and a driver circuit, wherein the driver circuit includes at least first, second, and third transistors connected in series and a further output transistor whose drain is connected to an anode of a respective organic light-emitting diode and whose gate is connected to a ground potential or to which negative electric voltage is applied and in this respect the first transistor acting as a driver is acted on by a constant electric operating voltage LVDD at its source and by a further likewise constant electric operating voltage V the drain of the second transistor forming the switch being connected to the source of the output transistor whose gate is connected to ground potential or to which negative electric voltage is applied, wherein the second transistor which is connected at its source to the first transistor acting as a driver is a PMOS transistor and the third transistor whose gate is connected with the gate of the second transistor together to the output of the sense amplifier is an NMOS transistor, and wherein a source of the third transistor and a gate of the output transistor being connected to the same ground potential or to which the same negative electric voltage is applied.