Light-emitting device and its use
AssigneeSony Corporation
InventorsNaoyuki Ueda, Yasunori Kajima, Shinichiro Tamura
Life of this patent
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Abstract
A light-emitting device having a layer including an emission region and provided between an anode and a cathode wherein the anode has a visible light (with a wavelength of 380 to 780 nm) transmittance ranging from 35 to 75%, and the anode has a work function of 3.0 to 7.0 ev wherein the device has an improved contrast characteristic while keeping high luminance.
Claims20
A light-emitting device comprising a layer including an emission region and provided between an anode and a cathode wherein said anode has a visible light transmittance of 35 to 75%, said anode has a metal selected from the group consisting of Ni, Ru, Ir, Rh, Pt, Pd, Re, Zr, Nb, Mo, and W, and said anode comprises a first layer comprising a first compound selected from the group consisting of zinc, indium, and tin and a second layer comprising said metal.
A light-emitting device comprising:
- a layer including an emission region;
- an anode;
- and
- a cathode, wherein said layer is disposed between said anode and said cathode, and
- said anode has a visible light transmittance of 35 to 75%, a metal selected from the group consisting of Ni, Ru, Ir, Rh, Pt, Pd, Re, Ti, Zr, Nb, Mo, and W, and a dopant material selected from the group consisting of Rx, NiO, Rx, WO3and TiNbx, Oy, wherein R is selected from the group consisting of H, Li, Na, K, Rb, Cs, Cu, Ag, and Au.
A light-emitting device comprising an inorganic layer including an emission region and provided between an anode and a cathode wherein said anode has a visible light transmittance of 35 to 75% wherein said anode comprises a metal selected from the group consisting of Ni, Ru, Ir, Rh, Pt, Pd, Re, Ti, Zr, Nb, Mo, and W and said anode has a dopant selected from the group consisting of H, Li, Na, K, Rb, Cs, Cu, Ag, and Au.
A light-emitting device comprising a layer including an emission region and provided between an anode and a cathode wherein said anode has a visible light transmittance of 35 to 75%, a metal selected from the group consisting of Ni, Ru, Ir, Rh, Pt, Pd, Re, Ti, Zr, Nb, Mo, and W, and a first layer comprising a first compound selected from the group consisting zinc, indium, and tin and a second layer comprising said metal, and wherein said second layer has a thickness that is greater than 20 nm and less than or equal to 80 nm, the anode further including dopant selected from the group consisting of H, Li, Na, K, Rb, Cs, Cu, Ag, and Au.
Dependencies are inferred from the claim text.