Flexible panel display having thin film transistors driving polymer light-emitting diodes
First Claim
1. A solid state electronic light emitting display device of non-planar configuration and having driving transistors distributed in a display area and sharing pixels with light-emitting display elements, the display device comprising, in combination:
- a non-planar substrate;
at least one metallization and interconnect layer carried by the substrate;
an interface carried by the substrate and including semiconductor devices configured and interconnected for selectively driving the pixels of the display device, the interface being connected to the interconnect layer;
the display area on the substrate being divided into a plurality of pixels, each pixel including;
a thin film transistor including layers of α
-Si;
H and dielectric forming a transistor structure having sufficient current capacity for driving a light-emitting means in the associated pixel;
a first electrode connected to and driven by the thin film transistor, the first electrode covering the majority of the pixel area;
a light-emitting polymer deposited on the first electrode;
a transparent electrode covering the light-emitting polymer such that said electrodes and said polymer form said light-emitting means by injecting carriers into the polymer under the control of the thin film transistor;
the thin film transistor being connected to the interconnect layer for receipt of drive signals from the interface; and
the interconnect layer being configured to interconnect the interface with the thin film transistors for selective energization of the respective thin film transistors and thereby selective illumination of the pixels.
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Accused Products
Abstract
A non-planar electronic light-emitting display has a display area divided into a matrix of pixels. Each pixel includes two primary elements, an electronic driver and a light-emitting diode based on a light-emitting polymer. The electronic driver is a thin film transistor device of amorphous silicon formed on the insulating substrate. The diode has a first electrode connected to and driven by the electronic transistor, a layer of light-emitting polymer deposited on the electrode, and an overlying electrode normally biased on. Energization of the driver biases the diode to cause the polymer to emit light. Each pixel is configured with the two-component structure described above, and row and column lines to the matrix of pixels are decoded by the drivers to cause selective illumination of the pixels.
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Citations
9 Claims
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1. A solid state electronic light emitting display device of non-planar configuration and having driving transistors distributed in a display area and sharing pixels with light-emitting display elements, the display device comprising, in combination:
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a non-planar substrate; at least one metallization and interconnect layer carried by the substrate; an interface carried by the substrate and including semiconductor devices configured and interconnected for selectively driving the pixels of the display device, the interface being connected to the interconnect layer; the display area on the substrate being divided into a plurality of pixels, each pixel including; a thin film transistor including layers of α
-Si;
H and dielectric forming a transistor structure having sufficient current capacity for driving a light-emitting means in the associated pixel;a first electrode connected to and driven by the thin film transistor, the first electrode covering the majority of the pixel area; a light-emitting polymer deposited on the first electrode; a transparent electrode covering the light-emitting polymer such that said electrodes and said polymer form said light-emitting means by injecting carriers into the polymer under the control of the thin film transistor; the thin film transistor being connected to the interconnect layer for receipt of drive signals from the interface; and the interconnect layer being configured to interconnect the interface with the thin film transistors for selective energization of the respective thin film transistors and thereby selective illumination of the pixels. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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Specification