摘要:
The present invention provides a blue phosphor that exhibits high luminance and shows less luminance degradation during driving of a light-emitting device. The present invention is a blue phosphor represented by the general formula aBaO.bSrO.(1−a−b)EuO.cMgO.dAlO3/2.eWO3, where 0.70≦a≦0.95, 0≦b≦0.15, 0.95≦c≦1.15, 9.00≦d≦11.00, 0.001≦e≦0.100, and a+b≦0.97 are satisfied. In this blue phosphor, two peaks whose tops are located in a range of diffraction angle 2θ=13.0 to 13.6 degrees are present in an X-ray diffraction pattern obtained by measurement on the blue phosphor using an X-ray with a wavelength of 0.774 Å.
摘要:
A plasma display panel includes a front plate, a rear plate facing the front plate, and a phosphor layer formed on the rear plate. The phosphor layer includes a green phosphor layer containing Zn2SiO4:Mn and (Y1−X, GdX)3Al5O12:Ce, where 0≦X≦1. In Zn2SiO4:Mn, the amount of Mn is no less than 8 at. % to no more than 10 at. % relative to the total amount of Zn and Mn, and the total amount of Zn and Mn is no less than 197 at. % to no more than 202 at. % relative to the amount of Si. The amount of (Y1−X, GdX)3Al5O12:Ce is no less than 20 wt. % to no more than 50 wt. % relative to the total amount of Zn2SiO4:Mn and (Y1−X, GdX)3A15O12:Ce.
摘要:
A UI specification creating apparatus displays a format that allows information relevant to a condition of an element displayed on an operation screen of a user interface to be activated and information concerning content of process that the element operates to be described in a given form and receives descriptions relevant to specifications of the element based on the format. The UI specification creating apparatus then displays the operation screen of the user interface and carries out a simulation of an operation of the element displayed on the operation screen of the user interface based on the information relevant to the condition of the element to be activated and the information concerning the content of process that the element operates received.
摘要:
A plasma display device having a panel main body in which a pair of transparent substrates is arranged in opposition so as to form a discharge space between the substrates on at least a front side, barrier ribs are arranged on at least one of the substrates to divide the discharge space into a plurality of spaces, a group of electrodes is arranged on the substrates so as to generate discharge in the discharge space divided with the barrier ribs, and phosphor layers that emit by discharge are provided, in which the phosphor layers are equipped with a green phosphor layer including at least a mixture of Zn2SiO4:Mn and (Y, Gd)BO3:Tb, the surface of the Zn2SiO4:Mn is coated with magnesium oxide, and the ratio of the Mg element to the Si element on the surface measured with an XPS apparatus is 0.7 to 6.0.
摘要:
The present invention relates to methods of producing transgenic plants having resistance to blast fungus and/or leaf-blight bacteria by transforming the plants with a DNA encoding a protein that induces hypersensitive reaction-like lesion mimic, and transgenic plants, plant cells, seed and progeny having resistance to blast fungus and/or leaf-blight bacteria.
摘要:
In a phosphor whose host crystal is constituted of an oxide, a method of preparing the phosphor where the oxygen deficiencies in the phosphor are not many, and a plasma display device using the same are provided. After processes of weighing, mixing and filling powders of the phosphor, a process for firing in a reducing atmosphere and a process for firing in an oxidizing atmosphere after the last reducing atmosphere process are provided. In addition, a firing temperature in the oxidizing atmosphere process is not less than 600° C. and not more than 1000° C.
摘要:
The present invention provides a plasma display panel that suppresses discharge sustain voltage, and reduces brightness degradation of a phosphor. In the plasma display panel, as protective film (14) made of magnesium oxide (MgO) formed on dielectric glass layer (13), protective film (14) made of magnesium oxide (MgO) with oxide added with an electronegativity of 1.4 or higher, is formed to suppress impure gas adsorption by protective film (14), stabilizes discharge sustain voltage, and reduces brightness degradation.
摘要:
Fine particles of a phosphor are weighed, mixed, and filled. Provided after this step are at least one step of firing the particles in a reducing atmosphere, and a step of pulverizing, dispersing, rinsing, drying and then treating the particles in an ozone atmosphere after the last step of treatment in the reducing atmosphere. This method recovers oxygen vacancy in the host crystal of the phosphor.
摘要:
Fine particles of a phosphor are weighed, mixed, and filled. Provided after this step are at least one step of firing the particles in a reducing atmosphere, and a step of pulverizing, dispersing, rinsing, drying and then performing oxygen ion implantation treatment for implanting oxygen ions and annealing the particles, after the step of treatment in the reducing atmosphere. This method recovers oxygen vacancy in the host crystal of the phosphor.
摘要:
The present invention relates to a plasma display device and to a method of producing a phosphor to be used for the device, that prevents the phosphor layer from deteriorating, and improves the luminance, life, and reliability, of a PDP. The plasma display device is equipped with a plasma display panel in which a plurality of discharge cells are arranged, phosphor layers (110R, 110G, 110B) in color corresponding to each discharge cell are disposed, and phosphor layers (110R, 110G, 110B) are excited by ultraviolet light to emit light. Green phosphor layer (110G) has a green phosphor including Zn2SiO4:Mn, the element ratio of zinc (Zn) to silicon (Si) at the proximity of its surface is 2/1, which is the stoichiometric ratio, and the layer is positively charged or zero-charged.