Methods and structures for reducing lateral diffusion through cooperative barrier layers
First Claim
1. An organic optoelectronic device structure comprising:
- a first barrier region comprising a substrate layer and a plurality of cooperative barrier layers disposed on said substrate layer, said plurality of cooperative barrier layers further comprising one or more planarizing layers and one or more high-density layers, wherein at least one high-density layer is disposed over at least one planarizing layer in a manner such that said at least one high-density layer extends to said substrate layer and cooperates with said substrate layer to completely surround said at least one planarizing layer;
an organic optoelectronic device disposed over said first barrier region, said organic optoelectronic device selected from an organic light emitting diode, an organic electrochromic display, an organic photovoltaic device and an organic thin film transistor; and
a second barrier region disposed over said organic optoelectronic device.
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Abstract
A covered substrate is described, which comprises: (a) a flexible substrate layer; and (b) a plurality of cooperative barrier layers disposed on the substrate layer. The plurality of cooperative barrier layers further comprise one or more planarizing layers and one or more high-density layers. Moreover, at least one high-density layer is disposed over at least one planarizing layer in a manner such that the at least one high-density layer extends to the substrate layer and cooperates with the substrate layer to completely surround the at least one planarizing layer. When combined with an additional barrier region, such covered substrates are effective for enclosing organic optoelectronic devices, such organic light emitting diodes, organic electrochromic displays, organic photovoltaic devices and organic thin film transistors. Preferred organic optoelectronic devices are organic light emitting diodes.
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Citations
43 Claims
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1. An organic optoelectronic device structure comprising:
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a first barrier region comprising a substrate layer and a plurality of cooperative barrier layers disposed on said substrate layer, said plurality of cooperative barrier layers further comprising one or more planarizing layers and one or more high-density layers, wherein at least one high-density layer is disposed over at least one planarizing layer in a manner such that said at least one high-density layer extends to said substrate layer and cooperates with said substrate layer to completely surround said at least one planarizing layer;
an organic optoelectronic device disposed over said first barrier region, said organic optoelectronic device selected from an organic light emitting diode, an organic electrochromic display, an organic photovoltaic device and an organic thin film transistor; and
a second barrier region disposed over said organic optoelectronic device. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. An OLED structure comprising:
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a first barrier region comprising a substrate layer and a plurality of first cooperative barrier layers disposed on said substrate layer, said plurality of first cooperative barrier layers further comprising one or more first planarizing layers and one or more first high-density layers, wherein at least one first high-density layer is disposed over at least one first planarizing layer in a manner such that said at least one first high-density layer extends to said substrate layer and cooperates with said substrate layer to completely surround said at least one first planarizing layer;
an OLED disposed over said first barrier region, said OLED comprising an anode, a cathode and an organic emissive layer; and
a second barrier region disposed over said OLED. - View Dependent Claims (10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32)
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33. A covered substrate comprising:
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a flexible substrate layer; and
a plurality of cooperative barrier layers disposed on said substrate layer, said plurality of cooperative barrier layers further comprising one or more planarizing layers and one or more high-density layers, wherein at least one high-density layer is disposed over at least one planarizing layer in a manner such that said at least one high-density layer extends to said substrate layer and cooperates with said substrate layer to completely surround said at least one planarizing layer. - View Dependent Claims (34, 35, 36, 37, 38, 39, 40, 41, 42, 43)
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Specification