Inverter for liquid crystal display, and power supply arrangement comprising such an inverter

Power supply arrangement for supplying power to a plurality of back and/or edge illumination devices (5) in a liquid crystal display unit (LCD) (1), comprising:

• a mains connection (7), a power converter (6), and at least one inverter (8), the power converter (6) having an input directly coupled to the mains connection (7) and having a first output coupled to an input of the at least one inverter (8), the power converter (6) being arranged to convert an AC voltage input to a power converter (6) DC voltage output, said power converter (6) DC voltage output being supplied to an input of the at least one inverter (8), the at least one inverter (8) being arranged to convert said power converter (6) DC voltage output to a AC output voltage level adequate for driving said illumination devices (5), and in that said at least one inverter (8) is provided with mains isolation via said power converter (6), the power supply arrangement further comprising a circuit power supply (9), connected to a second output of said power converter (6), and arranged to generate voltage levels required by circuitry (4) in the LCD, said circuit power supply (9) also being provided with mains isolation via said power converter (6).