Abstract: In accordance with the present invention, there are provided metal oxide-based phosphor microfine particles comprising a matrix crystal made of a metal oxide and a metal element doped as an emission center into the matrix crystal, wherein the microfine particles are provided with an organic group coordinated to a surface thereof, have a small particle size as well as a high affinity to and a high dispersibility in light-transmittable resins, and are inhibited from scattering light emitted from a light source; a process for producing the metal oxide-based phosphor microfine particles; a dispersion of the metal oxide-based phosphor microfine particles; a fluorescent conversion film; a method of separating the metal oxide-based phosphor microfine particles; a fluorescent liquid; a fluorescent paste; a phosphor; a process for producing the phosphor; and a fluorescent converter.

Abstract: In accordance with the present invention, there are provided metal oxide-based phosphor microfine particles comprising a matrix crystal made of a metal oxide and a metal element doped as an emission center into the matrix crystal, wherein the microfine particles are provided with an organic group coordinated to a surface thereof, have a small particle size as well as a high affinity to and a high dispersibility in light-transmittable resins, and are inhibited from scattering light emitted from a light source; a process for producing the metal oxide-based phosphor microfine particles; a dispersion of the metal oxide-based phosphor microfine particles; a fluorescent conversion film; a method of separating the metal oxide-based phosphor microfine particles; a fluorescent liquid; a fluorescent paste; a phosphor; a process for producing the phosphor; and a fluorescent converter.

Abstract: Particles including at least a metal oxide represented by the following formula and having a number-average particle diameter of 100 nm or less; AxLyMzOu wherein A is an alkali metal selected from Li, Na, K, Cs and Rb, or silver; L is a trivalent rare earth element selected from Sc, Y, La, Ce, Pr, Nd, Pm, Sm, Eu, Gd, Tb, Dy, Ho, Er, Tm, Yb and Lu; M is W, Mo, Cr, Mn, Ru, Os, Ir or Re; x is 0 to 2; y is 0.5 to 2; z is 0.5 to 4; and u is 5 to 10.

Abstract: A color converting material composition including: a light-transmissible matrix; a fluorescent semiconductor nanocrystal which absorbs at least light in a first wavelength region; and an organic fluorescent dye which absorbs at least light in a second wavelength region.

Abstract: A red fluorescence conversion medium including; a light-transmitting medium, a first perylene fluorescent dye that emits red fluorescence, and a second fluorescent dye that absorbs light in a ultraviolet to blue region to emit fluorescence, wherein the first perylene fluorescent dye absorbs light containing the fluorescence emitted by the second fluorescent dye to emit fluorescence.

Abstract: In accordance with the present invention, there are provided metal oxide-based phosphor microfine particles comprising a matrix crystal made of a metal oxide and a metal element doped as an emission center into the matrix crystal, wherein the microfine particles are provided with an organic group coordinated to a surface thereof, have a small particle size as well as a high affinity to and a high dispersibility in light-transmittable resins, and are inhibited from scattering light emitted from a light source; a process for producing the metal oxide-based phosphor microfine particles; a dispersion of the metal oxide-based phosphor microfine particles; a fluorescent conversion film; a method of separating the metal oxide-based phosphor microfine particles; a fluorescent liquid; a fluorescent paste; a phosphor; a process for producing the phosphor; and a fluorescent converter.

Abstract: A color conversion substrate including a first fluorescent layer 2a emitting first fluorescence and a second fluorescent layer 2b emitting second fluorescence on a supporting substrate 1, and the first fluorescent layer 2a including an organic fluorescent material and the second fluorescent layer 2b comprising a semiconductor nanocrystal.

Abstract: An organic electroluminescent display including: an organic electroluminescent device including an organic luminescent medium (4) which emits light having an emission peak wavelength l of 400 to 500 nm, and a first reflecting member (2) and a second reflecting member (5b) disposed with the organic luminescent medium (4) placed therebetween; and a fluorescence conversion section (7) which absorbs the light emitted from the organic electroluminescent device and emits light having a wavelength differing from the wavelength of the light emitted from the organic electroluminescent device, the fluorescence conversion section having a maximum wavelength of ?2 in a range of 400 to 500 nm in an excitation spectrum; light emitted from the organic electroluminescent device being subjected to optical interference between the first reflecting member (2) and the second reflecting member (5b) so that an emission component having a wavelength ?3, which is closer to the wavelength ?2 than the wavelength ?1, is enhanced and em

Abstract: Arcuate pivotally movable members and an arcuate slidable member are assembled so that guide pins provided in the arcuate pivotally movable members are inserted into the guide groove formed in the arcuate slidable member. The arcuate pivotally movable members and the arcuate bearing member are assembled by pivotal pins so that the arcuate pivotally movable members can pivotally move around the pivotal pins in directions to enlarge an inner size of the finger ring. The arcuate bearing member has a leaf spring provided therein so that the leaf spring has one end pressed against an inner side of a projection projecting from a first end of one of the arcuate pivotally movable members and located ahead of the pivotal pin in the one arcuate pivotally movable member, and the leaf spring has the other end pressed against an inner side of a projection projecting from a first end of the other arcuate pivotally movable member and located ahead of the pivotal pin in the other arcuate pivotally movable member.