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Sealed organic optoelectronic structures

  • US 6,614,057 B2
  • Filed: 02/07/2001
  • Issued: 09/02/2003
  • Est. Priority Date: 02/07/2001
  • Status: Expired due to Term
First Claim
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1. An organic optoelectronic device structure comprising:

  • an organic optoelectronic device selected from an organic light emitting diode, an organic electrochromic display, an organic photovoltaic device and an organic thin film transistor;

    first and second barrier layers, at least one of said first and second barrier layers permitting transmission of light between an outer environment and said organic optoelectronic device;

    a sealing region disposed between said first and second baffler layers, said sealing region cooperating with said first and second barrier layers to enclose said optoelectronic device and restrict transmission of water and oxygen from an outer environment to said optoelectronic device, said sealing region comprising an associated material that is harmful to said optoelectronic device, and said sealing region being formed of a material that undergoes a fluid-to-solid phase transformation; and

    a blocking region disposed between said first and second barrier layers and disposed between said sealing region and said optoelectronic device, said blocking region restricting transmission of said associated material from said sealing region to said optoelectronic device.

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