Abstract: To provide a thin-film capacitor capable of improving the stability of electric connection between an internal electrode layer and a connection electrode. The thin-film capacitor comprises: two or more dielectric layers deposited above a base electrode; an internal electrode layer being deposited between the dielectric layers and having a projecting portion which projects from the dielectric layer when seen from a laminating direction; and a connection electrode electrically connected to the internal electrode layer via at least a part of a surface and an end face of the internal electrode layer included in the projecting portion, wherein a ratio L/t between a projection amount L of the projecting portion of the internal electrode layer with respect to the dielectric layer and a thickness t of the internal electrode layer is 0.5 to 120.

Abstract: A thin-film device comprises a base electrode made of a metal, a first dielectric layer, a first inner electrode, a second dielectric layer, a second inner electrode, and a third dielectric layer. Letting T1 be the thickness of the lowermost first dielectric layer in contact with the base electrode in the plurality of dielectric layers, and Tmin be the thickness of the thinnest dielectric layer in the plurality of dielectric layers excluding the first dielectric layer, T1>Tmin. Making the first dielectric layer thicker than the thinnest, dielectric layer in the other dielectric layers can increase the distance between a metal part projecting from a metal surface because of the surface roughness of the base electrode and the inner electrode mounted on the lowermost dielectric layer, thereby reducing leakage currents.

Abstract: A method of manufacturing a thin film capacitor, having: a base electrode; dielectric layers consecutively deposited on the base electrode; an internal electrode deposited between the dielectric layers; an upper electrode deposited opposite the base electrode with the dielectric layers and the internal electrode being interposed therebetween; and a cover layer deposited on the upper electrode, has depositing an upper electrode layer which is to be the upper electrode, and a cover film which is to be the cover layer on the unsintered dielectric film which is to be the dielectric layer, to fabricate a lamination component, and sintering the lamination component.

Abstract: A sputtering target for fluorescent thin-film formation comprising a matrix material and a luminescent center material, wherein said matrix material has a chemical composition represented by the following formula (1), and simultaneously satisfies conditions represented by the following inequalities (2) to (5). MIIvAxByOzSw ??(1) 0.05?v/x?5 ??(2) 1?y/x?6 ??(3) 0.01?z/(z+w)?0.85 ??(4) 0.6?(v+x+3y/2)/(z+w)?1.5 ??(5) wherein MII represents one or more elements selected from the group consisting of Zn, Cd and Hg, A represents one or more elements selected from the group consisting of Mg, Ca, Sr, Ba and rare earth elements, B represents one or more elements selected from the group consisting of Al, Ga and In, and v, x, y, z and w each represent numerical values satisfying the conditions specified in the inequalities (2) to (5).

Abstract: An EL element 1 comprises EL functional layers 6, 10 comprising Ga2O3:Eu between a thick film insulator layer 16 and an upper electrode 12 provided on a substrate 2 on which a lower electrode 4 was formed and a light-emitting layer 8 comprising MgGa2O4 formed therebetween. The EL functional layers 6, 10 have the dual functions of insulating layers and electron doping layers. Due to this, the EL element 1 has a low drive voltage and high light-emitting brightness, and the structure of the EL element is simplified.

Abstract: A sputtering target for fluorescent thin-film formation comprising a matrix material and a luminescent center material, wherein said matrix material has a chemical composition represented by the following formula (1), and simultaneously satisfies conditions represented by the following inequalities (2) to (5). MIIvAxByOzSw ??(1) 0.05?v/x?5 ??(2) 1?y/x?6 ??(3) 0.01?z/(z+w)?0.85 ??(4) 0.6?(v+x+3y/2)/(z+w)?1.5 ??(5) wherein MII represents one or more elements selected from the group consisting of Zn, Cd and Hg, A represents one or more elements selected from the group consisting of Mg, Ca, Sr, Ba and rare earth elements, B represents one or more elements selected from the group consisting of Al, Ga and In, and v, x, y, z and w each represent numerical values satisfying the conditions specified in the inequalities (2) to (5).

Abstract: In a phosphor thin film comprising a matrix material and a luminescence center, the matrix material has the compositional formula: MIIvAxByOzSw wherein MII is Zn, Cd or Hg, A is Mg, Ca, Sr, Ba or rare earth element, B is Al, Ga or In, and atomic ratios v, x, y, z and w are 0.005?v?5, 1?x?5, 1?y?15, 0<z?30, and 0<w?30. The phosphor thin film of quality is formed at low cost by a low-temperature process, enabling manufacture of full-color EL panels.

Abstract: A liquid crystal projector comprises a detector for detecting whether a cooling fan is stopped or is being rotated, a first controller for gradually raising a voltage to be applied to the cooling fan when the cooling fan is started, and a second controller for setting the voltage to be applied to the cooling fan to a predetermined normal operating voltage when the detector detects that the cooling fan is rotated in the process of gradually raising the voltage to be applied to the cooling fan by the first controller.

Abstract: A phosphor thin film is provided that has a high luminance, a satisfactory color purity sufficient to eliminate a need for filters, and a long luminance life. The phosphor thin film can be adapted to suit each element of red, green and blue in full color EL panels. The phosphor thin film includes a matrix material and a luminescent center. The matrix material is a sulfide containing at least an alkaline earth element, Ga and/or In, sulfur (S) and optionally, Al, or an oxysulfide further containing oxygen (O) in addition to the foregoing elements. Provided that A stands for the alkaline earth element and B stands for Ga, In and Al in the matrix material, the atomic ratio B/A is in the range: B/A=2.1 to 3.5.

Abstract: The present invention aims at providing a phosphor thin film capable of realizing a light-emitting device attaining an excellent response, favorable color purity, and emission with a high luminance; and an EL panel including the same. The EL panel including the phosphor thin film of the present invention comprises a substrate, and a lower electrode, an insulating layer, an EL phosphor laminate thin film, and an upper electrode which are successively laminated on the substrate. In the EL phosphor laminate thin film, buffer thin films are formed on both sides of a phosphor thin film comprising a matrix material which is essentially constituted by magnesium gallate and doped with a rare-earth element or the like, and electron injection thin films are further formed on both sides thereof.

Abstract: A phosphor comprising a matrix material: Ba1-xZnxS wherein 0<x<1 and a luminescence center, typically Mn and/or Eu emits light of a sufficient color purity to eliminate a need for a filter, and in a good response and especially red light suitable in a full-color EL panel. An EL panel comprising the same is also provided.

Abstract: A phosphor thin film includes a matrix material expressed by a composition formula AxByOwSz, and a substance functioning as a luminescence center in the matrix material. In the composition formula, A represents at least one element selected from the group consisting of Mg, Ca, Sr, Ba, and Zn; B represents at least one rare-earth element selected from the group consisting of Sc, Y, La, Ce, Pr, Nd, Pm, Sm, Eu, Gd, Tb, Dy, Ho, Er, Tm, Yb, and Lu; O represents oxygen atoms; and S represents sulfur atoms, respectively. Molar ratios are respectively set as 0<x<5, 0<y<4, 0?z<8, and 0?w?8, and 0=z=w never holds true.

Abstract: The present invention aims at realizing a phosphor thin film having a high luminance with a low emission threshold voltage, and an EL element comprising the same. The EL element of the present invention comprises a substrate, and a lower electrode, a lower buffer thin film containing a sulfide such as ZnS, a phosphor thin film containing an oxide such as a gallate as a matrix material, an upper buffer thin film containing a sulfide such as ZnS, and an upper electrode which are successively laminated on the substrate.

Abstract: A fluorescent thin film is provided, including a matrix material containing as a main component a rare earth sulfide or a rare earth selenide and a rare earth element additive as a light emission center. The rare earth element additive is different from the rare earth element used for the matrix material.

Abstract: The invention provides a phosphor thin film having a high luminance, a satisfactory color purity enough to eliminate a need for filters, and a long luminance life, and best suited for each element of RGB in full color EL panels. The phosphor thin film of the invention comprises a matrix material and a luminescent center. The matrix material is an oxysulfide containing at least an alkaline earth element, Ga and/or In, sulfur (S) and oxygen (O). In the matrix material, the atomic ratio of oxygen to the total of oxygen and sulfur, O/(S+O), is from 0.1 to 0.85.

Abstract: A phosphor thin film includes a matrix material expressed by a composition formula AxByOwSz, and a substance functioning as a luminescence center in the matrix material. In the composition formula, A represents at least one element selected from the group consisting of Mg, Ca, Sr, Ba, and Zn; B represents at least one rare-earth element selected from the group consisting of Sc, Y, La, Ce, Pr, Nd, Pm, Sm, Eu, Gd, Tb, Dy, Ho, Er, Tm, Yb, and Lu; O represents oxygen atoms; and S represents sulfur atoms, respectively. Molar ratios are respectively set as 0<x<5, 0<y<4, 0≦z≦8, and 0≦w≦8, and 0=z=w never holds true.

Abstract: The invention aims to solve the problem of prior art EL devices that undesirable defects form in dielectric layers, and especially the problems of EL devices having dielectric layers of lead-base dielectric material including a lowering, variation and change with time of the luminance of light emission, and thereby provide an EL device ensuring high display quality without increasing the cost. Such objects are achieved by an EL device comprising at least an electrically insulating substrate 11 and a structure including an electrode layer 12, a dielectric layer 13, 14, 15, a light emitting layer 17 and a transparent electrode layer 19 stacked on the substrate 11, wherein the dielectric layer is a laminate including a first thick-film ceramic high-permittivity dielectric layer 13 whose composition contains at least lead, a second high-permittivity layer 14 whose composition contains at least lead, and a third high-permittivity layer 15 whose composition is free of at least lead.

Abstract: A liquid crystal projector comprises detection means for detecting whether a cooling fan is stopped or is being rotated, first control means for gradually raising a voltage to be applied to the cooling fan when the cooling fan is started, and second control means for setting the voltage to be applied to the cooling fan to a predetermined normal operating voltage when the detection means detects that the cooling fan is rotated in the process of gradually raising the voltage to be applied to the cooling fan by the first control means.

Abstract: The invention aims to provide a composite substrate which suppresses reaction of a substrate with a dielectric layer that can otherwise cause degradation of the dielectric layer and which can be sintered at high temperature while minimizing the occurrence of cracks in the dielectric layer, and an EL device using the composite substrate. The object is attained by a composite substrate in which an electrode and a dielectric layer are successively formed on an electrically insulating substrate, the substrate having a coefficient of thermal expansion of 10-20 ppm/K, and an EL device using the composite substrate.

Abstract: The invention has for its object to provide an EL phosphor multilayer thin film and EL device which can emit light with improved luminance. This object is achieved by the provision of an EL phosphor multilayer thin film wherein a phosphor thin film and a dielectric thin film are stacked one upon another. The phosphor thin film comprises a matrix material containing as a main component at least one compound selected from an alkaline earth thioaluminate, an alkaline earth thiogallate and an alkaline earth thioindate, and an rare earth element as a luminescent center, and the dielectric thin film comprises an alkaline earth oxide. There is also provided an EL device comprising such an EL phosphor multilayer thin film.