Sealed organic optoelectronic structures
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United States of America Patent
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Sep 2, 2003
Grant Date -
Sep 12, 2002
app pub date -
Feb 7, 2001
filing date -
Feb 7, 2001
priority date (Note) -
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status (Latency Note)
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Abstract
An organic optoelectronic device structure is provided. The structure comprises the following: (a) 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; (b) first and second barrier layers, at least one of the first and second barrier layers permitting transmission of light between the an outer environment and the organic optoelectronic device; (c) a sealing region disposed between the first and second barrier layers, the sealing region cooperating with the first and second barrier layers to enclose the optoelectronic device and restrict transmission of water and oxygen from an outer environment to the optoelectronic device, the sealing region also having at least one associated material that is harmful to the optoelectronic device; and (d) a blocking region disposed between the first and second barrier layers and disposed between the sealing region and the optoelectronic device, the blocking region restricting transmission of the at least one associated material from the sealing region to the optoelectronic device.
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