FULL-COLOR ACTIVE MATRIX ORGANIC LIGHT EMITTING DISPLAY WITH HYBRID
First Claim
1. A full-color active matrix organic light emitting display comprising:
- a transparent substrate;
a color filter positioned on an upper surface of the substrate;
a metal oxide thin film transistor backpanel positioned in overlying relationship on the color filter and defining an array of pixels;
an array of organic light emitting devices formed on the backpanel and positioned to emit light downwardly through the backpanel, the color filter, and the substrate in a full-color display, the light emitted by each organic light emitting device including the wavelength ranges of three primary colors, and each organic light emitting device including a first emission band with wavelengths substantially extending across the range of two of the primary colors of the three primary colors and a second emission band with wavelengths substantially extending across the range of the remaining primary color of the three primary colors; and
the color filter including at least three primary color zones corresponding to the three primary colors of the array of organic light emitting devices for each pixel in the array of pixels, two zones of the at least three primary color zones separating the first emission band into two separate primary colors of the three primary colors and a third zone of the at least three primary color zones passing the second emission band as a third primary color of the three primary colors.
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Abstract
A full-color AM OLED includes a transparent substrate, a color filter positioned on an upper surface of the substrate, and a metal oxide thin film transistor backpanel positioned in overlying relationship on the color filter and defining an array of pixels. An array of OLEDs is formed on the backpanel and positioned to emit light downwardly through the backpanel, the color filter, and the substrate in a full-color display. Light emitted by each OLED includes a first emission band with wavelengths extending across the range of two of the primary colors and a second emission band with wavelengths extending across the range of the remaining primary color. The color filter includes for each pixel, two zones separating the first emission band into two separate primary colors and a third zone passing the second emission band.
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Citations
29 Claims
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1. A full-color active matrix organic light emitting display comprising:
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a transparent substrate; a color filter positioned on an upper surface of the substrate; a metal oxide thin film transistor backpanel positioned in overlying relationship on the color filter and defining an array of pixels; an array of organic light emitting devices formed on the backpanel and positioned to emit light downwardly through the backpanel, the color filter, and the substrate in a full-color display, the light emitted by each organic light emitting device including the wavelength ranges of three primary colors, and each organic light emitting device including a first emission band with wavelengths substantially extending across the range of two of the primary colors of the three primary colors and a second emission band with wavelengths substantially extending across the range of the remaining primary color of the three primary colors; and the color filter including at least three primary color zones corresponding to the three primary colors of the array of organic light emitting devices for each pixel in the array of pixels, two zones of the at least three primary color zones separating the first emission band into two separate primary colors of the three primary colors and a third zone of the at least three primary color zones passing the second emission band as a third primary color of the three primary colors. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14)
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15. A method of fabricating a full-color active matrix organic light emitting display comprising the steps of:
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providing a transparent substrate formed of one of glass, organic film, or a combination thereof and one of rigid or flexible; positioning a color filter on an upper surface of the substrate; depositing a spacer layer on the upper surface of the color filter; forming a metal oxide thin film transistor backpanel on the spacer layer and defining an array of pixels; and positioning an array of organic light emitting devices on the backpanel to emit light downwardly through the backpanel, the spacer layer, the color filter, and the substrate in a full-color display, each organic light emitting device being designed to emit light including the wavelength ranges of three primary colors, and each organic light emitting device being further designed to emit a first emission band with wavelengths substantially extending across the range of two of the primary colors of the three primary colors and a second emission band with wavelengths substantially extending across the range of the remaining primary color of the three primary colors; and forming the color filter with at least three primary color zones corresponding to the three primary colors of the array of organic light emitting devices for each pixel in the array of pixels, two zones of the at least three primary color zones separating the first emission band into two separate primary colors of the three primary colors and a third zone of the at least three primary color zones passing the second emission band as a third primary color of the three primary colors. - View Dependent Claims (16, 17, 18, 19, 20, 22, 23, 24)
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- 25. A full-color AMOLED display in which each OLED includes an emitter array fabricated with a single pixel level patterning process.
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29. In a full-color AMOLED display including an array of pixels, each pixel including two primary color sub-pixels formed with a pair of OLED emitters with a broad emission profile extending over two color zones, and including a short-wavelength-pass optical color filter and a long-wavelength-pass optical color filter positioned to receive the emission profile with a cut-off edge midway in the optical profile.
Specification