Patent ID: 8223140
Filing Date: 2012-07-17
Classification: G09G

Abstract:
1. A power supply device for an organic electroluminescent display, comprising: an inductor charging a first power source; a power supply unit including an input terminal and output terminals, the power supply unit receiving the first power source from the inductor through the input terminal, generating second power sources of different voltage levels, and outputting the second power sources through the output terminals; and a Schottky diode between the input terminal and one of the output terminals, wherein the second power sources include first, second, third and fourth voltages, and the first voltage has a higher level than the second, third and fourth voltages, and wherein the first voltage is provided for a gate driving signal of the organic electroluminescent display and the second, third and fourth voltages are provided for driving voltages of RGB color pixels of the organic electroluminescent display.