公开(公告)号：US20040144956A1

公开(公告)日：2004-07-29

申请号：US10701449

申请日：2003-11-06

申请人： Kasei Optonix, Ltd. ,  MITSUBISHI CHEMICAL CORPORATION

发明人： Naoto Kijima ,  Yasuo Shimomura

IPC分类号： C09K011/08 ,  C09K011/54

CPC分类号： C09K11/08

摘要： The present invention is to provide a phosphor of minimum particle size having an excellent crystallinity and a high brightness higher than conventional crude particles, which is usable for a highly precise display, a highly bright illuminating element or illuminating apparatus, a high speed immunoassay system or the like, i.e. a phosphor having a substantially spherical outer shape, which comprises primary particles having a median diameter D50 in a range of from 0.05 nullm to 1 nullm and secondary particles having a median diameter D50 in a range of from 0.1 nullm to 2 nullm, wherein at least 50 vol % of the total secondary particles has an aspect ratio of at least 0.8 and an internal quantum efficiency is in a range of from 0.8 to 1.

公开(公告)号：US20030094596A1

公开(公告)日：2003-05-22

申请号：US10325826

申请日：2002-12-23

申请人： Kasei Optonix, Ltd.

发明人： Naoto Kijima ,  Yasuo Shimomura ,  Tetsuji Umebara ,  Ilgnatius Wuled Lenggoro ,  Kikuo Okuyama

IPC分类号： C09K011/08

CPC分类号： C09K11/08

摘要： A process for producing fine phosphor particles having a high crystallinity, having a small amount of aggregated particles and comprising fine particles, thus capable of forming a homogeneous and dense high brightness fluorescent layer when applied to e.g. a cathode ray tube, a fluorescent lamp or PDP, and having a high purity, a uniform chemical composition and excellent emission properties, at a low cost, is provided. A process for producing a phosphor, which comprises heating droplets of a solution containing metal elements constituting the phosphor to carry out pyrolysis to obtain the phosphor, wherein the above heating is carried out in the coexistence of an additive comprising a metal or a metal compound to carry out the pyrolysis at an average crystal growth rate of at least 0.002 nullm3/sec.

摘要翻译： 一种生产具有高结晶度的细磷光体颗粒的方法，具有少量的聚集颗粒并且包含细颗粒，因此当应用于例如荧光体颗粒时能够形成均匀且致密的高亮度荧光层。 阴极射线管，荧光灯或PDP，并且具有高纯度，均匀的化学组成和优异的发射特性。 一种荧光体的制造方法，其特征在于，包括加热含有构成所述荧光体的金属元素的溶液的液滴，进行热分解以获得所述荧光体，其中上述加热是在包含金属或金属化合物的添加剂共存的情况下进行的 以至少0.002mum3 / sec的平均晶体生长速率进行热解。

公开(公告)号：US20040251809A1

公开(公告)日：2004-12-16

申请号：US10776339

申请日：2004-02-12

申请人： Mitsubishi Chemical Corporation

发明人： Yasuo Shimomura ,  Naoto Kijima

IPC分类号： H01J001/62 ,  H01J063/04

CPC分类号： C09K11/0883 ,  C09K11/665 ,  C09K11/7721 ,  C09K11/7728 ,  C09K11/7731 ,  C09K11/7734 ,  C09K11/7774 ,  C09K11/7789 ,  H01L33/502 ,  H01L2224/45144 ,  H01L2224/48091 ,  H01L2224/48247 ,  H01L2224/48257 ,  H01L2224/49107 ,  H01L2224/8592 ,  H01L2924/181 ,  H01L2924/00012 ,  H01L2924/00014 ,  H01L2924/00

摘要： A phosphor (A) comprising a host material composed of a compound having a garnet crystal structure represented by the general formula (I): M1aM2bM3cOdnullnull(I) (wherein M1 is a divalent metal element, M2 is a trivalent metal element, M3 is a tetravalent metal element containing at least Si, a is the number of 2.7 to 3.3, b is the number of 1.8 to 2.2, c is the number of 2.7 to 3.3, and d is the number of 11.0 to 13.0), and a luminescent center ion incorporated in the host material; a light emitting device (B) comprising the phosphor as a wavelength conversion material and a semiconductor light emitting element capable of emitting a light in the range of from ultraviolet light to visible light; and a display (C) and a lighting system (D) using the light emitting device (B) as a light source. The above phosphor can be readily produced, and can provide a light emitting device having a high color rendering property.

摘要翻译： 包含由具有由通式（I）表示的石榴石晶体结构的化合物构成的主体材料的荧光体（A）：M 1 a M b M 3 c O d（I）（其中M 1为 二价金属元素M 2是三价金属元素，M 3是至少含有Si的四价金属元素，a是2.7〜3.3的数量，b是1.8〜2.2的数量，c是 数量为2.7〜3.3，d为11.0〜13.0的数量），发光中心离子结合在主体材料中; 包括作为波长转换材料的荧光体的发光器件（B）和能够发射从紫外光到可见光的范围内的光的半导体发光元件; 以及使用发光装置（B）作为光源的显示器（C）和照明系统（D）。 可以容易地制造上述荧光体，并且可以提供具有高显色性能的发光器件。