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Driving power supply, display driving circuit and organic light emitting diode display

  • US 10,283,050 B2
  • Filed: 04/17/2015
  • Issued: 05/07/2019
  • Est. Priority Date: 11/19/2014
  • Status: Active Grant
First Claim
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1. A driving power supply, comprising a boost module and a voltage adjusting module connected to the boost module,wherein, the boost module is used for boosting an initial voltage input from an initial voltage input terminal of the driving power supply to generate a reference voltage and for outputting the reference voltage to the voltage adjusting module;

  • the voltage adjusting module is used for adjusting magnitude of the reference voltage according to colors of pixel units to be driven to generate a plurality of driving voltages, respectively, wherein, the driving voltages corresponding to pixel units of different colors are different, the plurality of driving voltages are outputted through a plurality of driving voltage output terminals of the voltage adjusting module, respectively, and each of the plurality of driving voltage output terminals is used for driving pixel units of one color, and different driving voltage output terminals output different driving voltages, andthe voltage adjusting module comprises a pulse control module used for generating pulse control signals, and a duty ratio of each pulse control signal is related to the reference voltage.

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