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Lighting device

  • US 8,643,028 B2
  • Filed: 12/21/2009
  • Issued: 02/04/2014
  • Est. Priority Date: 12/02/2009
  • Status: Expired due to Fees
First Claim
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1. A lighting device, comprising:

  • a second OLED layer formed on a window;

    a solar cell formed on the second OLED layer; and

    a first OLED layer formed on the solar cell;

    wherein the solar cell comprises a second solar cell formed on the second OLED layer and a first solar cell formed on the second solar cell, and a glass substrate is provided between the first solar cell and the second solar cell.

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