摘要:
Disclosed here is a plasma display unit that employs phosphors having an amount of charge controlled close to zero, by which degradation in luminance, color temperature, and charge characteristics can be minimized. A phosphor bearing positive or negative charge is coated with a compound for controlling the amount of charge of the phosphor through a strong chemical bonding, whereby the amount of charge of a phosphor can be suppressed within ±0.01 μC/g. Controlling the amount of charge of phosphors close to zero can keep impurity gases away from the phosphor particle when the panel is in operation, suppressing problems critical to driving a plasma display unit, such as luminance degradation of phosphors, improper alignment of color in panel operation, luminance degradation when the panel displays all white.
摘要:
The present invention is a light-emitting device which is provided with a phosphor layer containing a blue phosphor, wherein the phosphor layer includes an aluminate phosphor, as the blue phosphor, that contains Ba, Sr, Eu, Mg, Al and O as constituting elements at an atom-number ratio Ba:Sr:Eu:Mg:Al:O=p:q:r:1:w:17 wherein 0.70≦p≦0.95, 0≦q≦0.15, 0.05≦r≦0.20, p+q+r≧1, and 9.8≦w≦10.5 are satisfied, and a value of a linear coupling function s represented by a formula: s=−11622+2043.07La+199.24L1−116.91L2 is 1 or less, when a lattice constant is La(Å), an interatomic distance between Al(2) and O(5) is L1(Å), and an interatomic distance between Al(1) and O(4) is L2(Å), which are obtained by an X-ray crystal structure analysis assuming that the aluminate phosphor belongs to a space group P63/mmc.
摘要:
A plasma display device provided with a green color phosphor which is charged entirely with a positive potential, adsorbs only limited amounts of water, carbon monoxide, carbon dioxide and hydrocarbon, and not liable to cause chemical reaction thereto. The green color phosphor used is a combination of any of phosphors defined by the general formula of MMg1-xAl11O19:Mnx (where “M” denotes one of La and Ce) having a magnetoplumbite crystal structure, yttrium borate group and yttrium aluminate group phosphors defined by the general formulae of (Y1-a-yGda) BO3:Tby, (Y1-a-yGda) (Ga1-xAlx)3(BO3)4:Tby, (Y1-a-yGda) (Ga1-xAlx)3(BO3)4:Cey, Tby, (Y1-y)3(Ga1-xAlx)5O12:Tby and La Mg1-xAl11O19:Cex, Tbx.
摘要:
The present invention relates to a plasma display device apt to increase luminance of a phosphor layer and prevent degradation of a discharge characteristic, and to a phosphor used for the device. This plasma display device has a green phosphor having a crystal structure of Zn2SiO4:Mn, and a monovalent oxide is substituted for part of the green phosphor. The monovalent oxide is one or more of lithium oxide (Li2O), sodium oxide (Na2O), potassium oxide (K2O), cesium oxide (Cs2O), rubidium oxide (Rb2O), copper oxide (Cu2O), and silver oxide (Ag2O). This structure allows reduction of oxygen defects occurring in the green phosphor, suppression of the luminance decrease of the green phosphor, and improvement of a discharge characteristic.
摘要翻译:本发明涉及一种能够增加荧光体层的亮度并防止放电特性劣化的等离子体显示装置以及用于该装置的荧光体。 该等离子体显示装置具有具有Zn 2+ SiO 4·Mn的晶体结构的绿色荧光体,并且一价氧化物被一部分绿色荧光体所代替。 一价氧化物是氧化锂(Li 2 O 2),氧化钠(Na 2 O 2),氧化钾(K 2 O 3) O),氧化铯(Cs 2 O),氧化铷(Rb 2 O),氧化铜(Cu 2 O 2)和银 氧化物(Ag 2 O)。 这种结构可以减少在绿色荧光体中发生的氧缺陷,抑制绿色荧光体的亮度降低和放电特性的改善。
摘要:
A plasma display panel having an excellent image display quality and high reliability is provided by preventing deterioration of a phosphor due to hydrocarbon gas remaining in the plasma display panel. The plasma display panel includes front panel (50) and rear panel (60) disposed opposing each other, and front panel (50) is provided with a plurality of display electrodes composed of a pair of scan electrode (6) and sustain electrode (7), and rear panel (60) has barrier ribs (10) forming discharge cells (11). In the plasma display panel, rear panel (60) includes data electrodes (9) perpendicular to display electrodes composed of a pair of scan electrode (6) and sustain electrode (7) on substrate (2), dielectric layer (13) covering data electrodes (9), reflective layer (20) containing an oxidation catalyst and covering at least a part of dielectric layer (13), and phosphor layer (12) covering reflective layer (20).
摘要:
The present inventors studied intensively, concentrating on the hypersensitive reaction from among the various reactions involved in enhancing plant resistance. As a result, the inventors found AAM97746.1 to be a protein that induces hypersensitive reaction-like lesion mimic. Disease or pest resistance in plants can be enhanced by using this protein and the like.
摘要:
A plasma display device provided with a green color phosphor which is charged entirely with a positive potential, adsorbs only limited amounts of water, carbon monoxide, carbon dioxide and hydrocarbon, and not liable to cause chemical reaction thereto. The green color phosphor used is a combination of any of phosphors defined by the general formula of MMg1-xAl11O19:Mnx (where “M” denotes one of La and Ce) having a magnetoplumbite crystal structure, yttrium borate group and yttrium aluminate group phosphors defined by the general formulae of (Y1-a-yGda) BO3:Tby, (Y1-a-yGda) (Ga1-xAlx)3(BO3)4:Tby, (Y1-a-yGda)(Ga1-xAlx)3(BO3)4:Cey, Thy, (Y1-y)3(Ga1-xAlx)5O12:Tby and La Mg1-xAl11O19:Cex, Tbx.
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:
A focusing apparatus including a focus lens; a focus lens driving unit that drives the focus lens; an imaging device configured to generate an image signal; a focus evaluation value calculating unit configured to receive an image signal from the imaging device and to calculate a focus evaluation value of a captured image; a difference calculating unit configured to calculate a difference between a current focus evaluation value and a previous focus evaluation value; a first determining unit configured to compare the difference to each of a plurality of threshold values different from each other; a counter configured to count results of comparing the difference to each of the plurality of threshold values and to generate count information; and a second determining unit configured to compare the count information to threshold count information and to determine a target drive direction in which the focus lens is to be driven.
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.