Abstract: The object of the present invention is to provide a polyolefin polymerization method which prevents fine particles of polymer from scattering from a fluidized bed in a gas phase polymerization reactor. This object is achieved by a process for polymerization of ?-olefin in multi-stage polymerization process and in at least two serially arranged polymerization reactors including a gas phase polymerization reactor, the process comprising; drawing out polyolefin particles from a polymerization reactor, and transferring the polyolefin particles into the interior of fluidized bed of a gas phase polymerization reactor of the next stage.

Abstract: The object of the present invention is to provide a polyolefin polymerization method which prevents fine particles of polymer from scattering from a fluidized bed in a gas phase polymerization reactor.

Abstract: The object of the present invention is to provide a polyolefin polymerization method which prevents fine particles of polymer from scattering from a fluidized bed in a gas phase polymerization reactor.

Abstract: A simple and slim double-faced vacuum fluorescent display device has no grid, thereby lowing the power consumption and fabrication cost thereof. Anode electrodes on one of the front plate and the back plate function as grids for anode electrodes on the other one of the front plate and the back plate. The light emitted from anode electrodes is not blocked by grids, thereby enhancing light emitting efficiency thereof.

Abstract: A fluorescent display device of the plane grid type capable of reducing accumulation of charges on an insulating layer, to thereby prevent an electron shading phenomenon and permit electrons emitted from a filament toward anode electrodes to be uniformly spread in a plane-like manner on both sides of the filament. A first substrate is formed thereon with stripe-like thin-film anode electrodes and stripe-like thin-film grids in a matrix-like manner through a thin-film insulating layer. The insulating layer and grids are formed with openings. Phosphors are deposited on portions of the anode electrodes exposed through the openings. The grids are formed into a height equal to or smaller than that of the phosphors. A second substrate is formed thereon with back electrodes for controlling emission of electrons from filaments.

Abstract: A fluorescent display device includes a first substrate, an insulating layer formed on the first substrate, n columns of m anodes, each anode having a fluorescent layer thereon, Q anode lead wires provided for each column of the m anodes, every Qth anodes being connected to a same anode lead wire, and m/Q grids, formed on the insulating layer, each grid being arranged across the n columns of m anodes, each grid being provided with openings for each column of m anodes, each opening exposing a portion of the first substrate and one anode being formed on the exposed portion of the first substrate.

Abstract: A fluorescent display device includes a first substrate, an insulating layer formed on the first substrate, n columns of m anodes, each anode having a fluorescent layer thereon, Q anode lead wires provided for each column of the m anodes, every Qth anodes being connected to a same anode lead wire, and m/Q grids, formed on the insulating layer, each grid being arranged across the n columns of m anodes, each grid being provided with openings for each column of m anodes, each opening exposing a portion of the first substrate and one anode being formed on the exposed portion of the first substrate.

Abstract: A fluorescent display device of the plane grid type capable of reducing accumulation of charges on an insulating layer, to thereby prevent an electron shading phenomenon and permit electrons emitted from a filament toward anode electrodes to be uniformly spread in a plane-like manner on both sides of the filament. A first substrate is formed thereon with stripe-like thin-film anode electrodes and stripe-like thin-film grids in a matrix-like manner through a thin-film insulating layer. The insulating layer and grids are formed with openings. Phosphors are deposited on portions of the anode electrodes exposed through the openings. The grids are formed into a height equal to or smaller than that of the phosphors. A second substrate is formed thereon with back electrodes for controlling emission of electrons from filaments.

Abstract: In a simple and slim double-faced vacuum fluorescent display device having no grid with low power consumption and low fabrication cost, in order to turn on fluorescent layers P111 to P141 of segments D11 to D14 in an anode electrode set D1 on a back plate S2, 12V, 0V, 0V and −12V are applied to the segments D11 to D14 in the anode electrode set D1 on the back plate S2, the other segments on the back plate S1, segments C11 to C15 in an anode electrode set C1 on a front plate S2 and the other segments on the front plate S1, respectively. In order to turn on segments C12 and C16 in the anode electrode set C1 on the front plate S1, 12V, 0V, 0V and −12V are applied to the segments C12 and C16 in the anode electrode set C1 on the front plate S1, the other segments on the front plate S1, the segments D1 to D14 on the back S2 and the other segments on the back plate S2, respectively.

Abstract: The present invention relates to a composition for forming a fluorescent film for a display and a method of forming a fluorescent film for forming a display surface of a display unit. The composition for forming a fluorescent film for a display has an aqueous medium in which photosensitive resin having a styryl pyridium photosensitive group having an internal salt structure and a fluorescent material which easily reacts with acid are dispersed. The composition is applied to the display surface of a display unit so that a fluorescent layer is formed. Then, the fluorescent material layer is developed to form the fluorescent material layer into a predetermined pattern, and then the fluorescent material layer formed into the predetermined pattern is baked so that a fluorescent film is formed.