Patent ID: 7808190
Filing Date: 2010-10-05
Classification: H05B

Abstract:
1. A display apparatus with a panel to display a picture thereon, comprising: an inverter to convert DC power into AC power; at least one lamp unit comprising a lamp body and a lamp electrode part provided in at least one of opposite ends of the lamp body to receive an electric power; a transformer arranged adjacent to the lamp electrode part which boosts up a voltage of the electric power output from the inverter to supply the electric power with the boosted voltage as a driving power to the lamp unit; and a casing to accommodate the lamp unit in a position opposite to the panel, wherein the transformer is arranged on an external surface of the casing and positioned directly opposite to the lamp electrode part of at least one lamp unit so that a length of wire between the transformer and the at least one lamp unit is minimized, wherein the transformer comprises a first transformer and a second transformer, and the first transformer is connected to the second transformer in parallel to boost up the voltage output from the inverter, and to supply an electric power having a current which has a phase difference of 180 degrees from the current of the electric power supplied from the second transformer to the lamp unit.