Organic electroluminescent device with full color characteristics
First Claim
1. A display device comprising:
- a flexible sheet having first and second surfaces, said first and second surfaces being parallel to one another, said flexible sheet being transparent to light of a first wavelength;
a first electrode comprising a first electrode layer in contact with said first surface, said first electrode layer being transparent to light of said first wavelength;
a light emitting layer comprising an organic polymer in electrical contact with said first electrode layer;
a second electrode comprising a second electrode layer in electrical contact with said light emitting layer, said light emitting layer generating light of said first wavelength when a potential difference is applied across said first and second electrodes; and
a light conversion layer in contact with said second surface, said light conversion layer absorbing light of said first wavelength and emitting light of a second wavelength.
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Accused Products
Abstract
An organic polymer based display and method for making the same. The display is constructed on a flexible sheet having first and second surfaces, the first and second surfaces being parallel to one another. The flexible sheet is transparent to light of a first wavelength. A first electrode, which includes a first electrode layer in contact with the first surface, is deposited on the flexible sheet. The first electrode layer is also transparent to light of the first wavelength. A light-emitting layer that includes an organic polymer is deposited on the electrode layer. A second electrode that includes a second electrode layer in contact with the light emitting layer is deposited on the light-emitting layer. The light emitting layer generates light of the first wavelength when a potential difference is applied across the first and second electrodes. A light conversion layer is deposited in contact with the second surface of the flexible sheet. The light conversion layer absorbs light of the first wavelength and emitting light of a second wavelength. In an addressable pixelated display, the light conversion layer and one of the first or second electrodes are patterned as parallel strips overlying one another.
117 Citations
9 Claims
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1. A display device comprising:
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a flexible sheet having first and second surfaces, said first and second surfaces being parallel to one another, said flexible sheet being transparent to light of a first wavelength; a first electrode comprising a first electrode layer in contact with said first surface, said first electrode layer being transparent to light of said first wavelength; a light emitting layer comprising an organic polymer in electrical contact with said first electrode layer; a second electrode comprising a second electrode layer in electrical contact with said light emitting layer, said light emitting layer generating light of said first wavelength when a potential difference is applied across said first and second electrodes; and a light conversion layer in contact with said second surface, said light conversion layer absorbing light of said first wavelength and emitting light of a second wavelength. - View Dependent Claims (2, 3, 4, 5)
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6. A method for fabricating a display device, said method comprising the steps of:
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depositing a first electrode comprising a first electrode layer on a first surface of a flexible sheet having first and second surfaces, said first and second surfaces being parallel to one another, said flexible sheet being transparent to light of a first wavelength, said first electrode layer being transparent to light of said first wavelength; depositing a light emitting layer comprising an organic polymer in electrical contact with said electrode layer; depositing a second electrode comprising a second electrode layer in electrical contact with said light emitting layer, said light emitting layer generating light of said first wavelength when a potential difference is applied across said first and second electrodes; and depositing a light conversion layer in contact with said second surface, said light conversion layer absorbing light of said first wavelength and emitting light of a second wavelength. - View Dependent Claims (7, 8, 9)
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Specification