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US 6,806,643 B2Granted
Light-emitting body, light emitting device and light-emitting display
AssigneeSamsung SDI Co., Ltd.
InventorsKazuhiko Hayashi, Atsushi Oda
Life of this patent
Estimating the term…
Abstract
A light-emitting body of the present invention includes an anode and a cathode at least partly facing the anode with the intermediary of a light-emitting material layer. An auxiliary electrode is formed, via an insulation layer, on the surface of the light-emitting body opposite to the surface where the anode faces the cathode via the light-emitting material layer. The cathode can be formed of a material that corrodes little. The light-emitting body therefore extends the life of a light-emitting device and therefore the life of a light-emitting display.
Claims54
A light-emitting body, comprising:
- an anode layer;
- a light-emitting material layer disposed on said anode layer;
- a plurality of parallel cathode strips disposed on said light-emitting material layer;
- an insulation layer, disposed on said plurality of parallel cathode strips and said light-emitting material layer;
- and
- an auxiliary electrode disposed on said insulation layer and above said plurality of parallel cathode strips.
3 more elements
A light-emitting body, comprising:
- a cathode layer;
- a light-emitting material layer disposed on said cathode layer;
- a plurality of parallel anode strips disposed on said light-emitting material layer;
- an insulation layer disposed on said plurality of parallel anode strips and said light-emitting material layer;
- and
- an auxiliary electrode disposed on said insulation layer and above said plurality of anode strips.
3 more elements
A light-emitting device, comprising:
- a light-emitting body, comprising:
- an anode layer;
- a light-emitting material layer disposed on said anode layer;
- a plurality of cathode strips disposed on said light-emitting material layer;
- an insulation layer disposed on said plurality of cathode strips and said light-emitting material layer;
- and
- an auxiliary electrode layer disposed on said insulation layer and above said plurality of parallel cathode strips;
- a current feeding device electrically connected to either one of said anode layer and said plurality of parallel cathode strips for feeding a current to said light-emitting material layer;
- and
- a voltage source electrically connected to said auxiliary electrode layer for applying a voltage to said light-emitting layer.
7 more elements
A light-emitting device comprising:
- a light-emitting body comprising:
- a cathode layer;
- a light-emitting material layer disposed on said cathode layer;
- an plurality of parallel anode strips disposed on said light-emitting material layer;
- an insulation layer disposed on said plurality of parallel anode strips and said light-emitting material layer;
- and
- an auxiliary electrode disposed on said insulation layer and above said plurality of anode strips;
- a current feeding device electrically connected to one of said plurality of parallel anode strips and said cathode layer for feeding a current to said light-emitting material layer;
- and
- a voltage source connected to said auxiliary electrode for applying a voltage to said light-emitting material layer.
7 more elements
A light-emitting display comprising:
- a plurality of light-emitting devices, each of said plurality of light-emitting devices comprising:
- a light-emitting body comprising:
- an anode layer;
- a light-emitting material layer disposed on said anode layer;
- a plurality of parallel cathode strips disposed on said light-emitting material layer;
- an insulation layer disposed on said plurality of parallel cathode strips and said light-emitting material layer;
- and
- an auxiliary electrode disposed on said insulation layer and above said plurality of parallel cathode strips;
- a current feeding device electrically connected to one of said anode layer and said plurality of parallel cathode strips for feeding a current to said light-emitting material layer;
- a voltage source electrically connected to said auxiliary electrode for applying a voltage to said light-emitting material layer;
- a switching device connected to said current feeding device for causing said current feeding device to selectively feed the current to said light-emitting material layer;
- a line for feeding the current to said current feeding device;
- and
- a line for delivering ON/OFF voltage information to said switching device,
- wherein said a plurality of lines for feeding the current and a plurality of lines for delivering the ON/OFF voltage information are arranged in a matrix.
12 more elements
A light-emitting display comprising:
- a plurality of light-emitting devices, each of said plurality of light-emitting devices comprising:
- a light-emitting body comprising:
- an cathode layer;
- a light-emitting material layer disposed on said cathode layer;
- a plurality of parallel anode strips disposed on said light-emitting material layer;
- an insulation layer disposed on said plurality of parallel anode strips and said light-emitting material layer;
- and
- an auxiliary electrode disposed on said insulation layer and above said plurality of parallel anode strips;
- a current feeding device electrically connected to one of said plurality of parallel anode strips and said cathode layer for feeding a current to said light-emitting material layer;
- a voltage source electrically connected to said auxiliary electrode for applying a voltage to said light-emitting material layer;
- a switching device connected to said current feeding device for causing said current feeding device to selectively feed the current to said light-emitting material layer;
- a line for feeding the current to said current feeding device;
- and
- a line for delivering ON/OFF voltage information to said switching device,
- wherein said a plurality of lines for feeding the current and a plurality of lines for delivering the ON/OFF voltage information are arranged in a matrix.
12 more elements
An active matrix display comprising:
- a substrate;
- and
- a display section comprising a plurality of first switching lines, a plurality of second switching lines intersecting said plurality of first switching lines, and a plurality of pixels formed by said plurality of first switching lines and said plurality of said switching lines in a form of a matrix, each of said plurality of pixels comprising:
- a conduction control circuit including a thin-film transistor including a gate to which a scanning signal is input via one of said plurality of first switching lines;
- and
- a light-emitting body comprising:
- an anode layer;
- a light-emitting material layer disposed on said anode layer;
- a plurality of parallel cathode strips disposed on said light-emitting material layer;
- an insulation layer disposed on said plurality of parallel cathode strips and said light-emitting material layer;
- and
- an auxiliary electrode disposed on said insulation layer and above said plurality of parallel cathode strips,
- wherein said light-emitting body emits light in accordance with a video signal fed via associated one of said second switching lines and said conduction control circuit.
10 more elements
An active matrix display comprising:
- a substrate;
- and
- a display section comprising a plurality of first switching lines, a plurality of second switching lines intersecting said plurality of first switching lines, and a plurality of pixels formed by said plurality of first switching lines and said plurality of said switching lines in a form of a matrix, each of said plurality of pixels comprising:
- a conduction control circuit including a thin-film transistor including a gate to which a scanning signal is input via one of said plurality of first switching lines;
- and
- a light-emitting body comprising:
- a cathode layer;
- a light-emitting material layer disposed on said cathode layer;
- a plurality of parallel anode strips disposed on said light-emitting material layer;
- an insulation layer disposed on said plurality of parallel anode strips and said light-emitting material layer;
- and
- an auxiliary electrode disposed on said insulation layer and above said plurality of parallel anode strips,
- wherein said light-emitting body emits light in accordance with a video signal fed via associated one of said second switching lines and said conduction control circuit.
10 more elements
A light-emitting body comprising:
- an auxiliary electrode;
- an insulation layer disposed on said auxiliary electrode;
- a plurality of parallel cathode strips disposed on said insulation layer;
- a light-emitting material layer disposed on said insulation layer and said plurality of parallel cathode strips;
- and
- an anode layer disposed on said light-emitting material layer and above said plurality of parallel cathode strips.
3 more elements
A light-emitting body comprising:
- an auxiliary electrode;
- an insulation layer disposed on said auxiliary electrode;
- a plurality of parallel anode strips disposed on said insulation layer;
- a light-emitting material layer disposed on said insulation layer and said plurality of parallel anode strips;
- and
- a cathode layer disposed on said light-emitting material layer and above said plurality of parallel anode strips.
3 more elements
Dependencies are inferred from the claim text.