Color display apparatus having electroluminescence elements
First Claim
1. A color display apparatus comprising:
- a substrate;
thin film transistors formed on said substrate, each of said thin film transistors having a source electrode and a drain electrode;
electroluminescence elements respectively formed over said thin film transistors, each of said electroluminescence elements having a cathode connected to said source electrode or said drain electrode, a luminous layer, and an anode sequentially formed thereover; and
color elements respectively disposed directly on said anodes of said electroluminescence elements.
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Abstract
A color display apparatus comprises a substrate; thin film transistors formed on the substrate, each of the thin film transistors having a source electrode and a drain electrode; electroluminescence elements respectively formed over the thin film transistors and driven by the thin film transistors, each of the electroluminescence elements having a cathode connected to a source electrode or drain electrode of a thin film transistor, a luminous element layer, and an anode electrode sequentially disposed thereover. A color filter or fluorescent color conversion layer acting as a color element is formed on the side of the anode electrode of an electroluminescence element. The same luminous layer material is used for each display pixel to display a color image.
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Citations
31 Claims
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1. A color display apparatus comprising:
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a substrate;
thin film transistors formed on said substrate, each of said thin film transistors having a source electrode and a drain electrode;
electroluminescence elements respectively formed over said thin film transistors, each of said electroluminescence elements having a cathode connected to said source electrode or said drain electrode, a luminous layer, and an anode sequentially formed thereover; and
color elements respectively disposed directly on said anodes of said electroluminescence elements. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 11)
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10. A color display apparatus, comprising:
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a substrate;
thin film transistors formed on said substrate, each of said thin film transistors having a source electrode and a drain electrode;
electroluminescence elements respectively formed over said thin film transistors, each of said electroluminescence elements having a cathode connected to said source electrode or said drain electrode, a luminous layer, and an anode sequentially formed thereover; and
color elements respectively arranged on the sides of said anodes of said electroluminescence elements, wherein each of said anodes of said electroluminescence elements is shaped in a comb, mesh, or grid planar pattern. - View Dependent Claims (24, 25, 26, 27, 28, 29, 30, 31)
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12. A color display apparatus comprising:
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a substrate;
thin film transistors formed on said substrate, each of said thin film transistors having a source and a drain; and
electroluminescence elements respectively formed over said thin film transistors, each of said electroluminescence elements having a cathode connected to said source or said drain, a luminous layer, and an anode sequentially formed in that order, wherein said luminous layer is formed of a same material for each of said electroluminescence elements, and color filters are respectively provided over said anodes of said electroluminescence elements. - View Dependent Claims (13, 14)
wherein said color filters are respectively formed over said anodes such that each of said color filters is assigned to each of said electroluminescence elements for permitting transmission of a light having a predetermined wavelength. -
14. The color display apparatus defined in claim 12,
wherein said luminous layer is composed of a white color emissive material, and each of said color filters is a color of red, green, or blue and each of said color filters is assigned to each of said electroluminescence elements.
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15. A color display apparatus having a plurality of display pixels on a substrate, said display pixels comprising:
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thin film transistors formed on said substrate, each of said thin film transistors having a source and a drain;
electroluminescence elements respectively formed over said thin film transistors, each of said electroluminescence elements having a cathode connected to said source or said drain, a luminous layer, and an anode sequentially formed in that order;
insulating layers for separating at least said luminous layer of each of said display pixels; and
color elements provided respectively over said anodes of said electroluminescence elements. - View Dependent Claims (16, 17, 18, 19, 20, 21, 22, 23)
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Specification