31results about How to "Improve light color purity" patented technology

The invention discloses a rare-earth nanometer metasilicate red fluorophor and the method for preparation. It contains the following setups: dissolving sensitizer activator substrate yttrium oxide in norbiline (or azotic acid), pressure-reduced distilling to eliminate water and excess acid, adding alcohol to prepare clear and transparent solution, and adding substrate silicon material to prepare transparent sol, pressure-reduced distilling to eliminate alcohol and acquiring powder solid, and adglutinating in 550-750 Deg. C by 2-4 hours to prepare the product. It prepares rare-earth nanometer red fluorescent powder in a low temperature (600 Deg. C) and a short time (3 hours), the average grain diameter being about 60-80 nm, the luminous intensity strong, chemical and optical property stable, the material easily obtained and cheap. Chemical expression formula of the rare-earth nanometer red fluorescent powder is as following: (YxSiy0z: Euj, Mn.

The invention discloses an organic electroluminescence device. The organic electroluminescence device comprises a glass substrate, a scattering layer, a positive pole, a hole-injection layer, a hole-transmission layer, a light-emitting layer, an electronic transmission layer, an electronic injection layer and a negative pole which are sequentially overlapped, wherein the scattering layer comprises a metal oxide layer, a light-emitting material layer and an iron salt layer; the HOMO energy level of the material of the metal oxide layer is between -5.2 eV and -6.0 eV; the material of the light-emitting layer is selected from one and more of 4-(dicyanomethyl)-2-butyl-6-(1,1,7,7-tetramethyljulolidine-9-ethenyl)-4H-pyran, 9,10-di-beta-naphthyl anthracene, 4,4'-di(9-ethyl-3-vinylcarbazole)-1-1'-biphenyl and 8-hydroxyquinoline aluminum; the material of the iron salt layer is selected from one and more of iron chloride, iron bromide and iron sulfide. The organic electroluminescence device is relatively high in light-emitting efficiency. The invention also provides a manufacturing method for the organic electroluminescence device.

The invention provides an OLED display panel. The OLED display panel comprises a substrate, a light emitting layer and an encapsulating layer. The light emitting layer is arranged on the substrate. The encapsulating layer covers the surface of the light emitting layer. The light emitting layer comprises multiple pixel units which are arranged in an array manner. The OLED display panel also comprises at least one light extraction unit. The light extraction units are arranged in the encapsulating layer and correspond to the pixel units. According to the invention, the OLED display panel comprises at least one light extraction unit; the light extraction units are arranged in the encapsulating layer and correspond to the pixel units; and by increasing the light extraction units, light extraction efficiency can be improved, so photochromic purity is improved, displaying brightness is improved and service lifetime in light emitting is prolonged.

The invention discloses an organic electroluminescence device which comprises a glass substrate, a scattering layer, an anode, a hole injection layer, a hole transmission layer, a light emitting layer, an electron transfer layer, an electron injection layer and a cathode which are overlapped in sequence, wherein the scattering layer consists of a ternary doped layer and a ferric salt doped layer; the ternary doped layer comprises titanium dioxide, a magnesium compound material and a light emitting material; the magnesium compound material is selected from at least one of magnesium fluoride, magnesium oxide and magnesium sulfide; the ferric salt doped layer comprises a ferric salt material and an organic silicon micromolecule material doped in the ferric salt material; the ferric salt material is selected from at least one of ferric chloride, ferric bromide and ferric sulfide; the energy gap of the organic silicon micromolecule material is minus 3.5-minus 5.5eV. The organic electroluminescence device disclosed by the invention is relatively high in light emission efficiency. The invention further provides a preparation method of the organic electroluminescence device.

The invention discloses an organic electroluminescence device which comprises a glass substrate, a scattering layer, an anode, a hole injection layer, a hole transmission layer, a light emitting layer, an electron transfer layer, an electron injection layer and a cathode which are overlapped in sequence, wherein the scattering layer consists of a metal material layer, a light emitting material doped layer and a metallic oxide doped layer; the power function of the material of the metal material layer is minus 4.0-minus 5.5eV; the light emitting material doped layer comprises a light emitting material and a first metallic oxide material doped in the light emitting material; the refractive index of the first metallic oxide material is 1.8-2.0; the metallic oxide doped layer comprises a second metallic oxide and a light emitting material doped in the second metallic oxide; the HOMO energy level of the second metallic oxide is minus 5.2-minus 6.0eV; the light emitting material is described above. The organic electroluminescence device disclosed by the invention is relatively high in light emission efficiency. The invention further provides a preparation method of the organic electroluminescence device.

The invention discloses an organic electroluminescence device which comprises a glass substrate, a scattering layer, an anode, a hole injection layer, a hole transmission layer, a light emitting layer, an electron transfer layer, an electron injection layer and a cathode which are overlapped in sequence, wherein the scattering layer consists of a metal material doped layer and a calcium compound material doped layer; the metal material doped layer comprises a metal material and a light emitting material doped in the metal material; the power function of the metal material is minus 4.0-minus 5.5eV; the calcium compound material doped layer comprises a calcium compound material and a magnesium compound material doped in the calcium compound material; the calcium compound material is selected from at least one of calcium oxide, calcium chloride, calcium carbonate and calcium fluoride; the magnesium compound material is selected from at least one of magnesium fluoride, magnesium oxide, magnesium chloride and magnesium sulfide. The organic electroluminescence device disclosed by the invention is relatively high in light emission efficiency. The invention further provides a preparation method of the organic electroluminescence device.

The invention relates to an organic light-emitting device and a manufacturing method thereof. The organic light-emitting device comprises a substrate, an anode, a hole injection layer, a hole transfer layer, a light-emitting layer, an electron transfer layer, an electron injection layer and a cathode which are sequentially stacked. The electron injection layer comprises a ferric salt doping layer and a ternary doping layer which are stacked on the electron transfer layer in sequence. The ferric salt doping layer is made of an inorganic ferric salt and a first fullerene derivate. The ternary doping layer is made of a phthalocyanine metal compound, fluorescence radiation materials and a second fullerene derivate. Due to the fact that the carrier concentration of the inorganic ferric salt is high, the electron density and the electron-hole combination probability can be increased; due to the phthalocyanine metal compound, light emitted perpendicularly can be scattered, and the photon utilization rate is increased; due to the fluorescence radiation materials, the light-emitting light color can be complemented, and the light color purity and the light-emitting efficiency are improved; due to the first and second fullerene derivates, the electron transfer rate can be increased; accordingly, the light-emitting efficiency of the organic light-emitting device is high.

The invention relates to an organic light-emitting device and a manufacturing method thereof. The organic light-emitting device comprises a substrate, an anode, a hole injection layer, a hole transfer layer, a light-emitting layer, an electron transfer layer, an electron injection layer and a cathode which are sequentially stacked. The electron injection layer comprises a ferric salt doping layer, a fullerene doping layer and a titanium dioxide doping layer which are stacked on the electron transfer layer in sequence. The ferric salt doping layer is made of an inorganic ferric salt and fluorescence radiation materials. The fullerene doping layer is made of a fullerene derivate and metal. Due to the fact that the carrier concentration of the inorganic ferric salt is high, the electron density and the electron-hole combination probability can be increased; due to the fluorescence radiation materials, light-emitting light color can be complemented, the light color purity is improved, and the light-emitting efficiency is improved; due to the fact that the fullerene derivate is electron-rich materials, the electron transfer rate can be increased; due to the fact that the titanium dioxide doping layer can enable light to be scattered, light emitted to the two sides can be returned to the middle, and the light-emitting efficiency is improved; accordingly, the light-emitting efficiency of the organic light-emitting device is high.

The invention discloses an organic electroluminescence device which comprises a glass substrate, a scattering layer, an anode, a hole injection layer, a hole transmission layer, a light emitting layer, an electron transfer layer, an electron injection layer and a cathode which are overlapped in sequence, wherein the scattering layer comprises a zinc doped layer, a zinc powder layer and a ferric salt doped layer; the zinc doped layer comprises a light emitting material and zinc powder doped in the light emitting material; the light emitting material is selected from at least one of 4-(dinitrile methyl)-2-butyl-6-(1,1,7,7-tetramethyljulolidine-9-vinyl)-4H-pyran, 9,10-di-beta-naphthylene anthracene, 4,4'-di(9-ethyl-3-carbazole vinyl)-1,1'-biphenyl and 8-hydroxyquinoline aluminum; the ferric salt doped layer comprises a light emitting material and a ferric salt doped in the light emitting material; the light emitting material is described above; the ferric salt is selected from at least one of ferric chloride, ferric bromide and ferric sulfide.

The invention discloses an organic electroluminescence device which comprises a glass substrate, a scattering layer, an anode, a hole injection layer, a hole transmission layer, a light emitting layer, an electron transfer layer, an electron injection layer and a cathode which are overlapped in sequence, wherein the scattering layer comprises a metal material, a hole transfer material and a light emitting material; the power function of the metal material is minus 2.0-minus 3.5eV; the hole transfer material is selected from at least one of 1,1-di[4-[N,N'-di(p-cresyl)amino]phenyl]cyclohexane, 4,4',4''-tri(carbazole-9-yl)triphenylamine and N,N'-(1-naphthyl)-N,N'-diphenyl-4,4'-benzidine. The organic electroluminescence device disclosed by the invention is relatively high in light emission efficiency. The invention further provides a preparation method of the organic electroluminescence device.

The invention discloses an organic electroluminescence device. The organic electroluminescence device comprises a glass substrate, a scattering layer, a positive pole, a hole-injection layer, a hole-transmission layer, a light-emitting layer, an electronic transmission layer, an electronic injection layer and a negative pole which are sequentially overlapped, wherein the scattering layer comprises a metal material layer and a three-element doped layer; the work function of the metal material is between -4.0eV and -5.5eV; the three-element doped layer comprises a lithium salt material, a light-emitting material and a hole object material; the lithium salt material is selected from one and more of lithium oxide, lithium fluoride, lithium chloride and lithium bromide; the hole object material is selected from one and more of 2,3,5,6-tetrafluoro-7,7,8,8-tetracyano-quinodimethane, 4,4,4-tri(naphthyl-1-phenyl-amino) triphenylamine and dinaphthyl-N,N'-diphenyl-4,4'-benzidine. The organic electroluminescence device is relatively high in light-emitting efficiency. The invention also provides a manufacturing method for the organic electroluminescence device.

The invention discloses an organic electroluminescence device which comprises a glass substrate, a scattering layer, an anode, a hole injection layer, a hole transmission layer, a light emitting layer, an electron transfer layer, an electron injection layer and a cathode which are overlapped in sequence, wherein the scattering layer consists of a ternary doped layer and a metal material layer; the ternary doped layer comprises a copper compound material, a calcium compound material and a light emitting material; the copper compound material is selected from at least one of copper iodide, cuprous oxide, copper phthalocyanine and copper oxide; the calcium compound material is selected from at least one of calcium oxide, calcium chloride, calcium carbonate and calcium fluoride; the power function of the material of the metal material is minus 4.0-minus 5.5eV. The organic electroluminescence device disclosed by the invention is relatively high in light emission efficiency. The invention further provides a preparation method of the organic electroluminescence device.

The invention discloses an organic electroluminescence device which comprises a glass substrate, a scattering layer, an anode, a hole injection layer, a hole transmission layer, a light emitting layer, an electron transfer layer, an electron injection layer and a cathode which are overlapped in sequence, wherein the scattering layer consists of a light emitting material, a copper compound material and a rhenium compound material; the material of the light emitting material is selected from at least one of 4-(dinitrile methyl)-2-butyl-6-(1,1,7,7-tetramethyljulolidine-9-vinyl)-4H-pyran, 9,10-di-beta-naphthylene anthracene, 4,4'-di(9-ethyl-3-carbazole vinyl)-1,1'-biphenyl and 8-hydroxyquinoline aluminum; the copper compound material is selected from at least one of copper iodide, cuprous oxide, copper phthalocyanine and copper oxide; the rhenium compound material is selected from at least one of rhenium heptoxide, rhenium oxide, rhenium trioxide and rhenium chloride. The organic electroluminescence device disclosed by the invention is relatively high in light emission efficiency.