Display device and method of operating thereof

Display device and method of operating thereof

  • CN 102,306,045 B
  • Filed: 06/27/2011
  • Issued: 02/24/2016
  • Est. Priority Date: 05/06/2011
  • Status: Active Grant
First Claim
Patent Images

1. a display device, is characterized in that, comprising:

  • One display module;

    One solar cell, in order to receive a luminous energy and to convert this luminous energy to an electric energy;

    One voltage transmission unit, couples this solar cell to receive this electric energy and to export an optical transition voltage at a maximum power point;

    One controller, couples this solar cell and this voltage transmission unit, to detect this electric energy, and when this electric energy reaches this maximum power point, controls this voltage transmission unit export this optical transition voltage;

    AndOne voltage selection unit, couples this voltage transmission unit and an external voltage, and to export in this luminous energy changing voltage and this external voltage the greater to this display module;

    Wherein, when this electric energy reaches this maximum power point, control this voltage transmission unit export this optical transition voltage and comprise;

    when controller continues this electric energy of detecting, when detecting that this optical transition voltage remains on this maximum power point one Preset Time, export this optical transition voltage;

    Or when controller cycle detects this electric energy, when this optical transition voltage that adjacent repeated detection arrives is for this maximum power point, export this optical transition voltage;

    More comprise;

    One second rechargeable battery, couples this controller;

    One switch element, be coupled to this controller, this voltage transmission unit, between this second rechargeable battery and this voltage selection unit, to receive the cell voltage that this optical transition voltage and this second rechargeable battery provide;

    AndOne second charger, couples this voltage transmission unit, this controller and this second rechargeable battery, utilizes this optical transition voltage to charge to this second rechargeable battery to be controlled by this controller;

    Wherein, when this second rechargeable battery is a unsaturated state, it is nonconducting state that this controller controls this switch element, and control this second charger to charge to this second rechargeable battery, when this second rechargeable battery is a state of saturation, it is a conducting state that this controller controls this switch element, to export this luminous energy changing voltage, this cell voltage is to this voltage selection unit, when this voltage selection unit receives this luminous energy changing voltage, when this cell voltage and this external voltage, this voltage selection unit exports this luminous energy changing voltage, in this cell voltage and this external voltage, the maximum is as an operating voltage.

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