OLED with color change media
First Claim
1. A tuned OLED device, comprising:
- a) a tuned microcavity structure including a light-emitting layer for producing light, a semitransparent reflector, and a reflector layer disposed on opposite sides of the light-emitting layer, the tuned microcavity structure enhancing on-axis light produced from the light-emitting layer in at least one particular wavelength to produce a desired on-axis viewed color while not substantially enhancing on-axis other wavelengths of such light; and
b) a layer including a color change medium which is responsive to wavelengths of light shorter than the particular wavelength by absorbing such shorter wavelengths of light and emitting light corresponding in color to the particular wavelength, thereby improving the color of the light produced by the OLED device when viewed in an off-axis direction.
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Accused Products
Abstract
A tuned OLED device includes a microcavity structure including a light-emitting layer for producing light, a semitransparent reflector, and a reflector layer disposed on opposite sides of the light-emitting layer, the microcavity structure enhancing on-axis light produced from the light-emitting layer in at least one particular wavelength to produce a desired on-axis viewed color while not substantially enhancing on-axis other wavelengths of such light; and a layer including a color change medium which is responsive to wavelengths of light shorter than the particular wavelength by absorbing such shorter wavelengths of light and emitting light corresponding in color to the particular wavelength, thereby improving the color of the light produced by the OLED device when viewed in an off-axis direction.
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Citations
25 Claims
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1. A tuned OLED device, comprising:
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a) a tuned microcavity structure including a light-emitting layer for producing light, a semitransparent reflector, and a reflector layer disposed on opposite sides of the light-emitting layer, the tuned microcavity structure enhancing on-axis light produced from the light-emitting layer in at least one particular wavelength to produce a desired on-axis viewed color while not substantially enhancing on-axis other wavelengths of such light; and b) a layer including a color change medium which is responsive to wavelengths of light shorter than the particular wavelength by absorbing such shorter wavelengths of light and emitting light corresponding in color to the particular wavelength, thereby improving the color of the light produced by the OLED device when viewed in an off-axis direction. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14)
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15. A tuned multicolor OLED device having an array of different color pixels wherein at least two of such different color pixels comprise:
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a) common light-emitting layer for each of the at least two such different color pixels that produces light having at least two different particular wavelengths corresponding to the two different colors; b) two different tuned microcavity structures, wherein each tuned microcavity structure includes a common light-emitting layer for producing light, a semitransparent reflector, and a reflector layer disposed on opposite sides of the light-emitting layer, each tuned microcavity structure enhances one of the particular wavelengths to provide on-axis light having the desired on-axis viewed color while not substantially enhancing other wavelengths of such light in an on-axis direction; and c) at least one color change medium associated with one of the different tuned microcavity structures which is responsive to wavelength of light shorter than the particular wavelength of the associated microcavity structure by absorbing such shorter wavelengths of light and emitting light corresponding in color to the desired particular wavelength, thereby improving the color of the light produced by the associated microcavity structure when viewed in an off-axis direction. - View Dependent Claims (16, 17, 18, 19, 20, 21, 22, 23, 24, 25)
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Specification