Organic electroluminescent device with plural microcavities
First Claim
1. An organic light emitting device comprising a first microcavity including an organic light emitting diode and a first mirror, having a light output with a light spectrum and one or more additional microcavities, each additional microcavity including a mirror positioned in tandem with the light output to successively alter the light spectrum.
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Accused Products
Abstract
An OED with a first microcavity including a first transparent spacer positioned adjacent the diode light output and a first mirror stack positioned on the first spacer to reflect light back into the OED and to define an optical length of the first microcavity. The optical length of the first microcavity being such that light emitted from the first microcavity has a first spectrum. A second microcavity including a second transparent spacer positioned adjacent the first microcavity and a second mirror stack positioned on the second spacer to reflect light toward the first microcavity and to define an optical length of the second microcavity. The optical length of the second microcavity being such that light emitted from the second microcavity has a second spectrum. Additional microcavities can be placed in the structure to further enhance and alter the light spectrum.
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Citations
30 Claims
- 1. An organic light emitting device comprising a first microcavity including an organic light emitting diode and a first mirror, having a light output with a light spectrum and one or more additional microcavities, each additional microcavity including a mirror positioned in tandem with the light output to successively alter the light spectrum.
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5. An organic light emitting device comprising:
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an organic light emitting diode including a diode light output; a first microcavity including a first plurality of layers of material having different indexes of refraction such that the first plurality of layers operates as a first mirror stack, the first plurality of layers being positioned in spaced relationship from the diode light output to reflect light from the diode light output toward the organic light emitting diode and to cooperate with the organic light emitting diode to define an optical length of the first microcavity, the first plurality of layers further defining a first microcavity light output, and the optical length of the first microcavity being such that light emitted from the first microcavity light output has a first spectrum; and a second microcavity including a second plurality of layers of material having different indexes of refraction such that the second plurality of layers operates as a second mirror stack, the second plurality of layers being positioned in spaced relationship from the first microcavity light output to reflect light from the first microcavity light output toward the first microcavity and to define an optical length of the second microcavity, the second plurality of layers further defining a second microcavity light output, and the optical length of the second microcavity being such that light emitted from the second microcavity light output has a second spectrum. - View Dependent Claims (6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17)
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18. An organic light emitting device comprising:
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an organic light emitting diode including an organic light emitting zone sandwiched between first and second electrical contacts with the first electrical contact being transparent to emitted light and defining the diode light output; a first microcavity including a first transparent spacer positioned adjacent the diode light output and a first plurality of layers of dielectric material having different indexes of refraction such that the first plurality of layers operates as a first mirror stack, the first plurality of layers being positioned on the first transparent spacer so as to reflect light toward the organic light emitting diode and to cooperate with the first transparent spacer and the organic light emitting diode to define an optical length of the first microcavity, the first plurality of layers further defining a first microcavity light output, the optical length of the first microcavity being such that light emitted from the first microcavity light output has a first spectrum; a second microcavity including a second transparent spacer positioned adjacent the first microcavity light output and a second plurality of layers of dielectric material having different indexes of refraction such that the second plurality of layers operates as a second mirror stack, the second plurality of layers being positioned on the second spacer so as to reflect light toward the first microcavity and to define an optical length of the second microcavity, the second plurality of layers further defining a second microcavity light output, the optical length of the second microcavity being such that light emitted from the second microcavity light output has a second spectrum; and a transparent substrate supporting the second microcavity and defining a device light output. - View Dependent Claims (19, 20, 21, 22, 23, 24, 25, 26, 27)
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28. An light emitting device comprising:
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a light emitting diode including a diode light output; a first microcavity including a first transparent spacer positioned adjacent the diode light output and a first plurality of pairs of layers of material having different indexes of refraction such that each pair of layers of the first plurality of pairs of layers operates as a partial mirror, the first plurality of pairs of layers being positioned on the first transparent spacer so as to reflect light toward the light emitting diode and to cooperate with the first transparent spacer and the light emitting diode to define an optical length of the first microcavity, the first plurality of pairs of layers further defining a first microcavity light output, the optical length of the first microcavity being such that light emitted from the first microcavity light output has a first spectrum; and a second microcavity including a second transparent spacer positioned adjacent the first microcavity light output and a second plurality of pairs of layers of material having different indexes of refraction such that each pair of layers of the second plurality of pairs of layers operates as a partial mirror, the second plurality of pairs of layers being positioned on the second spacer so as to reflect light toward the first microcavity and to define an optical length of the second microcavity, the second plurality of pairs of layers further defining a second microcavity light output, the optical length of the second microcavity being such that light emitted from the second microcavity light output has a second spectrum. - View Dependent Claims (29, 30)
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Specification