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    • 1. 发明授权
    • 형광체 및 그의 제조방법
    • 형광체및그의제조방법
    • KR100397577B1
    • 2003-09-17
    • KR1020010015159
    • 2001-03-23
    • 후다바 덴시 고교 가부시키가이샤
    • 카타오카후미아키타무라키요시사토요시타카노무라유지
    • C09K11/59
    • C09K11/7774C09K11/025Y10T428/2991Y10T428/2993
    • The present invention provides a phosphor of formula A2SiO5:B (A is Y or Gd, and B is Ce or Tb) which is characterized by a surface elemental composition represented by (A+B)/Si ranging from 1.5 to 2.5, wherein A is Y or Gd, and B is Ce or Tb; and method for preparing said phosphor. One embodiment of the method is as follows: a SiO2 powder is mixed with co-precipitate (Y, Ce)2O3 (Ce/Y=0.01), in an amount ranging from 10 to 110 mol % based on the amount of (Y, Ce)2O3, and the mixture is charged into the inner crucible of a double-walled aluminum crucible. After graphite is charged between the inner and outer crucible, the mixture is calcined at 1450° C. for 2 hours to obtain an Y2SiO5:Ce phosphor. The luminous efficiency of a field emission display (FED) prepared employing the Y2SiO5:Ce phosphor was measured at an anode voltage of 600V, an electric power input of 30 Wp-p and a duty rate of 1/240. It is desirable that the relative amount of SiO2 based on the amount of (Y, Ce)2O3 ranges from 40 to 70 mol %, preferably 50 to 60 mol %.
    • 本发明提供了式(A + B)/ Si表示的表面元素组成为1.5-2.5的式A2SiO5:B(A为Y或Gd,B为Ce或Tb)的磷光体,其中A 是Y或Gd,B是Ce或Tb; 和制备所述磷光体的方法。 该方法的一个实施方案如下:基于(Y,Y)的量计,SiO 2粉末与共沉淀物(Y,Ce)2 O 3(Ce / Y = 0.01)混合,其量为10-110mol% Ce)2 O 3,并将该混合物装入双壁铝坩埚的内坩埚中。 在内部和外部坩埚之间装入石墨后,将混合物在1450℃煅烧。 C 2小时以获得Y 2 SiO 5:Ce荧光粉。 在600V的阳极电压,30Wp-p的电功率输入和1/240的占空比下测量使用Y 2 SiO 5:Ce荧光体制备的场发射显示器(FED)的发光效率。 基于(Y,Ce)2 O 3的量的SiO 2的相对量优选为40-70摩尔%,优选50-60摩尔%。
    • 2. 发明公开
    • 형광체 및 그의 제조방법
    • 荧光物质及其制造方法
    • KR1020010090733A
    • 2001-10-19
    • KR1020010015159
    • 2001-03-23
    • 후다바 덴시 고교 가부시키가이샤
    • 카타오카후미아키타무라키요시사토요시타카노무라유지
    • C09K11/59
    • C09K11/7774C09K11/025Y10T428/2991Y10T428/2993
    • PURPOSE: To improve the life and luminous efficiency of a Y2SiO5:Ce fluorescent substance performing blue luminescence and capable of being used for an FED (field emission display). CONSTITUTION: In an A2SiO5:B (wherein A is Y or Gd; and B is Ce or Tb) fluorescent substance, an elemental composition ratio (A+B)/Si on the surface is set to be 1.5-2.5. For example, coprecipitated (Y, Ce)2O3 (wherein a ratio Ce/Y is fixed in such a way as to be 1 atom.%) with, an oxalate and SiO2 fine powder are used, charge stock wherein a composition ratio of SiO2 to (Y, Ce)2O3 is set to be 10-110% as a ratio between raw materials is satisfactorily compounded and is thrown into an inner crucible of an alumina double crucible, graphite is filled between the inner and outer crucibles and synthesis is carried out in a kiln. The Y2SiO5:Ce fluorescent substance is obtained by holding the temperature at 1,450deg.C for 2 hours. The luminous efficiency of the fluorescent substance layer is measured by making a FED made as a model using the fluorescent substance emit light under conditions that an anodic voltage is 600 V, input power is 30 Wp-p and a duty ratio is 1/240. The charge of SiO2 should be 40-70%, preferably 50-60%.
    • 目的:提高执行蓝色发光并能够用于FED(场发射显示)的Y2SiO5:Ce荧光物质的寿命和发光效率。 构成:在A2SiO5:B(其中A为Y或Gd; B为Ce或Tb)的荧光物质中,表面上的元素组成比(A + B)/ Si为1.5-2.5。 例如,使用草酸盐和SiO 2细粉末的共沉淀(Y,Ce)2 O 3(其中Ce / Y比率固定为1原子%),其中SiO 2的组成比 至(Y,Ce)2 O 3为10〜10%,原料配比良好,投入到铝坩埚的内坩埚中,在内,外坩埚之间填充石墨,进行合成 在窑里出来 通过将温度保持在1450℃2小时获得Y2SiO5:Ce荧光物质。 在阳极电压为600V,输入功率为30Wp-p,占空比为1/240的条件下,通过使用荧光体发光来制作作为模型的FED来测量荧光物质层的发光效率。 SiO 2的电荷应为40-70%,优选为50-60%。
    • 5. 发明公开
    • 형광 표시관의 제조 방법 및 형광 표시관
    • 真空荧光显示器及其制造方法
    • KR1020020073265A
    • 2002-09-23
    • KR1020020013116
    • 2002-03-12
    • 후다바 덴시 고교 가부시키가이샤
    • 오카모토요시나리노무라유지와다히로유키다나카가즈유키나카야마마사히로시미즈노리오미나토츠카사
    • H01J31/15
    • PURPOSE: A vacuum fluorescent display and a method of manufacturing the same are provided to allow for ease of formation of fine through holes and multi-layer wiring, while obtaining a vacuum fluorescent display operating at a low voltage. CONSTITUTION: A vacuum fluorescent display comprises an anode substrate(1) formed of an insulation substrate. A cathode electrode(3) for emitting thermal electrons, a grid electrode(2) for accelerating the thermal electrons emitted from the cathode electrode, and an anode electrode(11) are disposed on the insulation substrate. The anode electrode includes a wiring layer, an insulation layer stacked on the wiring layer and which has a through hole, an anode conductor stacked on the insulation layer, and a phosphor deposited on the anode conductor and which emits light by the collision of the thermal electrons emitted from the cathode electrode. The insulation layer of the anode substrate is made of an insulation thin film which is formed by maintaining the insulation substrate at a predetermined temperature.
    • 目的:提供真空荧光显示器及其制造方法,以便在获得在低电压下工作的真空荧光显示器时,容易形成细通孔和多层布线。 构成:真空荧光显示器包括由绝缘基板形成的阳极基板(1)。 用于发射热电子的阴极电极(3),用于加速从阴极发射的热电子的栅极(2)和阳极电极(11)设置在绝缘基板上。 阳极电极包括布线层,堆叠在布线层上的绝缘层,并且具有通孔,堆叠在绝缘层上的阳极导体和沉积在阳极导体上的荧光体,并且通过热的碰撞而发光 从阴极发射的电子。 阳极基板的绝缘层由绝缘薄膜制成,该绝缘薄膜通过将绝缘基板保持在预定温度而形成。
    • 7. 发明公开
    • GaN 형광체의 제조방법
    • 制造GAN磷的方法
    • KR1020000048415A
    • 2000-07-25
    • KR1019990062528
    • 1999-12-27
    • 후다바 덴시 고교 가부시키가이샤
    • 사토요시타카스다요리코가타오카후미아키도키히토시노무라유지
    • H01L33/50C09K11/62
    • C09K11/62C09K11/66Y10S438/935
    • PURPOSE: A method for fabricating a GaN phosphor is provided which emits practically sufficient luminance by the excitation of an electron line, and whose color is not darkened even though it is cured with a high temperature to improve the crystallization. CONSTITUTION: According to a method for fabricating a GaN phosphor, a dope material compound(3) containing an atom reacting with H2 and is gasified by heating is placed on an end part(b) of the heating range of the upper part, in a curing furnace(1). And, a Ga compound(4) is placed on a center part(a) of the heating range of the lower part. And, the furnace is heated as flowing NH3. The Ga compound is heated in a higher temperature than the dope material compound. The dope material compound is decomposed by NH3, and an atmosphere containing S, O and dope material is generated around the Ga compound. By S and O, the reduction of hydrogen is suppressed and the decomposition of GaN becomes difficult. And, the vicinity of the Ga compound is coated with NH3 and gas-phase dope material, and sufficient amount of dope material is diffused to the GaN. And, thus a GaN phosphor of high crystallization doped with the dope material is obtained.
    • 目的:提供一种用于制造GaN荧光体的方法,其通过电子线的激发发射实际上足够的亮度,并且即使其在高温下固化以改善结晶,其颜色也不变暗。 构成:根据制造GaN荧光体的方法,将含有与H 2反应并通过加热气化的原子的掺杂材料化合物(3)放置在上部的加热范围的端部(b)上, 固化炉(1)。 并且,将Ga化合物(4)放置在下部的加热范围的中心部(a)上。 并且,炉子以NH3流动的方式加热。 Ga化合物在比掺杂材料化合物高的温度下加热。 掺杂材料化合物被NH 3分解,并且在Ga化合物周围产生含有S,O和掺杂材料的气氛。 通过S和O,氢的还原被抑制并且GaN的分解变得困难。 并且,Ga化合物附近涂覆有NH 3和气相掺杂材料,并且足够量的掺杂材料扩散到GaN。 因此,获得掺杂有掺杂材料的高结晶性的GaN荧光体。