Patent ID: 8368671
Filing Date: 2013-02-05
Classification: G09G

Abstract:
1. A driving circuit for a display with display elements arranged in rows and/or columns, the driving circuit being adapted to selectively provide to first and second switches of each respective display element, a first and a second switching signal, wherein the driving circuit comprises a shift register having at least one input and a multiplicity of outputs, wherein the shift register is operable to select individual display elements or groups of display elements, for providing said first and second switching signals to the first and second switches of each selected display element, wherein each of the multiplicity of outputs provides one of the first or second switching signals, wherein each of the multiplicity of outputs of the shift register has a buffer circuit associated with said output for buffering the first or second switching signal provided by the respective output of the shift register, wherein each buffer circuit has two power supply voltage terminals, wherein the power supply voltage terminals of buffer circuits buffering the first switching signals are connected to power supply voltages having levels different from the levels of those power supply voltages to which buffer circuits are connected that buffer the second switching signals, wherein the power supply voltages are connected in accordance with the required magnitude of the first or second switching signal.