摘要:
A phosphor in which water adsorption onto the surface of a blue phosphor is inhibited, luminance degradation and chromaticity shift of the phosphor is decreased, or discharge characteristics thereof is improved, and a plasma display device using the phosphor. In phosphor layers used for plasma display, selectively coating at least the vicinity of the sides of planes of mirror symmetry containing Ba atoms in a blue phosphor with an oxide or a fluorine-containing oxide inhibits water adsorption onto the surface of the blue phosphor, decreases luminance degradation and chromacity shift of a phosphor, or improves discharge characteristics thereof.
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 oxygen plasma 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:
A plasma display device includes a blue phosphor composed of a compound represented by Me3MgSi2O8:Eu (where, Me is at least calcium (Ca), strontium (Sr), or barium (Ba)). Concentration of bivalent Eu ions is 45 to 95% and concentration of trivalent Eu ions is 5 to 55%, of the europium (Eu) atoms contained in the blue phosphor layer. The plasma display device has less luminance degradation in a panel manufacturing process, high luminance, and long lifetime.
摘要翻译:等离子体显示装置包括由Me 3 N 2 SiO 2·O 8:Eu表示的化合物构成的蓝色荧光体(其中,Me至少为 钙(Ca),锶(Sr)或钡(Ba))。 二价Eu离子的浓度为蓝色荧光体层所含的铕(Eu)原子的45〜95%,三价Eu离子的浓度为5〜55%。 等离子体显示装置在面板制造工艺中具有较少的亮度劣化,高亮度和长寿命。
摘要:
A blue phosphor composing a blue phosphor player in a plasma display device has a crystal structure of Ba(1-x)EuxMgAl10O17 or Ba(1-x-y)EuxSryMgAl10O17. In this blue phosphor, La substitutes for a proportion of Ba or Sr so as to achieve a high-luminance plasma display device with less luminance deterioration in panel manufacturing processes.
摘要翻译:构成等离子体显示装置中的蓝色荧光体的蓝色荧光体具有Ba(1-x)Eu x MgAl 10 O O的晶体结构 或(Ba)(1-xy)Eu x x Sr x Y y O x O 17 SUB>。 在该蓝色荧光体中,La代替Ba或Sr的一部分,以实现面板制造工艺中亮度劣化较少的高亮度等离子体显示装置。
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:
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 reacttion thereto. The green color phosphor used is any one or a combination two or more kinds of phosphors selected from among compounds defined by the general formulae of M1-xAl12O19:Mnx (where “M” denotes one of Ca, Sr, Eu and Zn) having a magnetoplumbite crystal structure, (Y1-a-yGda) (Ga1-xAlx)3 (BO3)4:Tby, (Y1-a-yGda) (Ga1-xAlx)3 (BO3)4:Cey, Tby, (Y1-a-yGda) BO3:Tby and (Y1-a-yGda)3 (Ga1-xAlx)5 O12:Tby having any of an yttrium borate crystal structure and yttrium aluminate crystal structure.
摘要翻译:一种具有完全充电的绿色荧光体的等离子体显示装置,仅吸收有限量的水,一氧化碳,二氧化碳和碳氢化合物,并且不易引起化学反应。 所使用的绿色荧光体是选自由M 1-x Al 2 O 2 O的通式所定义的化合物中的任何一种或两种或更多种荧光体 具有磁铅石晶体结构的Mn x(其中“M”表示Ca,Sr,Eu和Zn中的一个),(Y 1-ay) (Ga> x x x x x>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> )Tb Tb Tb Tb Tb Tb Tb Tb Tb x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x 3(3)3)3(3)(3)(3)(3) Tb,Y 3,Y 3,Y 3,Z 3,...,Y 3, 和(Y 1-ay)(A 1)a)3(Ga 1-x Al 2) 具有硼酸钇晶体结构和钇铝酸盐晶体结构中任何一种的具有铌的氧化物。
摘要:
A method of manufacturing a plasma display panel is disclosed. This method can collect impurity gas in the panel without an activation treatment at a high temperature. The method includes at least one of forming a dielectric layer on a principal face of a substrate, forming barrier ribs which partition a discharging space on the dielectric layer, and forming a phosphor layer between the barrier ribs. At least one of forming the dielectric layer, forming the barrier ribs, and forming the phosphor layer uses inorganic material into which solution including degassing material is impregnated.
摘要:
The present invention is aimed to provide an autofocus device and a correction method of correcting a zoom tracking curve for an intermediate subject distance without increase in storage capacity. A plurality of zoom tracking curves L1(Z) and L2(Z) corresponding to a plurality of different subject distance and correction data &agr;(Z) calculated in advance are stored in a memory 16. A control circuit 10 carries out a predetermined interpolation process using the stored plurality of zoom tracking curves and correction data to calculate a zoom tracking curve L(Z) corrected with respect to a subject distance differing from the plurality of subject distance. Tracking control of focus is carried out according to this calculated zoom tracking curve.
摘要:
It is intended to provide a heat sink unit and an electronic apparatus capable of efficiently cooling a plurality of semiconductor devices and taking action for unnecessary electromagnetic waves. There are provided a plurality of fan units and electromagnetic shielding means for cutting off electromagnetic waves on a heat sink substrate. It is also provided a heat sink substrate, a unit having a fan for supplying fluid to the heat sink substrate and driving means for rotating the fan, and electromagnetic shielding means provided for the heat sink substrate.
摘要:
An auto focus camera includes a motor drive circuit. This motor drive circuit causes an AF lens to move by a first predetermined amount a time. A micro-computer determines AF evaluation values at respective lens positions. The AF evaluation values thus determined have a mountain-like characteristic form with a focal point as a summit. The micro-computer detects a maximum AF evaluation value and two AF evaluation values smaller than that value, and determines a deviation of a maximum evaluation position corresponding to the maximum AF evaluation value from a focal point. If the deviation is small, the micro-computer takes the maximum evaluation position as an optimal position. On the other hand, if the deviation is large, the micro-computer takes as an optimal position a position deviated by a second predetermined amount from the maximum evaluation position.