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    Rare earth oxide coated phosphors and a process for preparing the same
    2.
    发明申请
    Rare earth oxide coated phosphors and a process for preparing the same 失效
    稀土氧化物涂覆的荧光体及其制备方法

    公开(公告)号：US20040166318A1

    公开(公告)日：2004-08-26

    申请号：US10784093

    申请日：2004-02-20

    Applicant: Georgia Tech Research Corporation ,  Samsung Display Devices Co., Ltd.

    Inventor： Wounjhang Park ,  Kazuhito Yasuda ,  Brent K. Wagner ,  Christopher J. Summers ,  Youngrag Do ,  Hong Guen Yang

    IPC: B32B023/02

    CPC classification number: C09K11/584 ,  C09K11/025 ,  Y10T428/2991

    Abstract: The present invention provides surface coated phosphors useful in field emission displays and vacuum fluorescent displays. The surface coated phosphor comprises a thin coating of rare earth oxide, e.g., yttrium oxide, disposed on an uncoated phosphor such as a sulfide phosphor. The present invention further provides a process for preparing a surface coated phosphor comprising contacting the uncoated phosphor with a rare earth hydroxide gel solution to obtain a rare earth hydroxide gel coated phosphor, drying the gel coated phosphor to remove solvent residues, and heat treating the dried rare earth hydroxide gel coated phosphor. The surface coated phosphors of the present invention have improved cathodoluminescence efficiency, coulombic aging resistance, chemical, and/or oxidative stability.

    Abstract translation: 本发明提供可用于场致发射显示器和真空荧光显示器的表面涂覆荧光粉。 表面涂覆的荧光体包括设置在未涂覆的荧光体如硫化物荧光体上的稀土氧化物例如氧化钇的薄涂层。 本发明还提供了一种制备表面被覆荧光体的方法，包括使未涂覆的荧光体与稀土氢氧化物凝胶溶液接触以获得稀土氢氧化物凝胶涂覆的荧光体，干燥凝胶涂覆的磷光体以除去溶剂残余物，并将干燥的 稀土氢氧化物凝胶涂层荧光粉。 本发明的表面被覆荧光体具有改进的阴极发光效率，库仑抗老化性，化学稳定性和/或氧化稳定性。

    Lithium composition oxide as positive active material for lithium secondary batteries
    4.
    发明申请
    Lithium composition oxide as positive active material for lithium secondary batteries 有权
    锂组合物氧化物作为锂二次电池的正极活性物质

    公开(公告)号：US20010028874A1

    公开(公告)日：2001-10-11

    申请号：US09849246

    申请日：2001-05-07

    Applicant: SAMSUNG DISPLAY DEVICES CO., LTD.

    Inventor： Jae-Phil Cho ,  Geun-Bae Kim ,  Yong-Chul Park ,  Sung-Soo Kim

    IPC: C01G051/04 ,  H01M004/32

    CPC classification number: H01M4/131 ,  C01G53/42 ,  C01P2002/54 ,  C01P2004/03 ,  C01P2004/20 ,  C01P2004/32 ,  C01P2004/52 ,  C01P2004/61 ,  C01P2004/62 ,  C01P2006/11 ,  C01P2006/40 ,  H01M4/1391 ,  H01M4/485 ,  H01M4/525

    Abstract: A lithium composite oxide (LiaNi(1-x-y)CoxMyO2, where M is at least one metal atom selected from the group consisting of Al, Ca, Mg and B, anull0.97null1.05, xnull0.1null0.3, and ynull0null0.05), prepared by a method including the steps of: (a) coprecipitating a NinullCo composite hydroxide by adding an aqueous ammonia solution as a complexing agent, and an alkaline solution as a pH-adjusting agent, to an aqueous mixed solution containing a cobalt salt and a nickel salt; (b) adding lithium hydroxide to the composite hydroxide and thermally treating the mixture at 280null420null C.; and (c) thermally treating the resultant of the step (b) at 650null750null C. The average particle diameter of the lithium composite oxide decreases, or the tap density thereof increases, depending on the coprecipitation time. When the lithium composite oxide is used as a positive electrode active material, a lithium ion secondary cell having a high capacity can be obtained.

    Abstract translation: 一种锂复合氧化物（LiaNi（1-xy）CoxMyO2，其中M是选自Al，Ca，Mg和B中的至少一种金属原子，a = 0.97〜1.05，x = 0.1〜0.3，y = 0〜0.05），通过以下方法制备：（a）通过将氨水溶液作为络合剂和作为pH调节剂的碱性溶液加入到含水混合物中来共沉淀Ni-Co复合氢氧化物 含有钴盐和镍盐的溶液; （b）向复合氢氧化物中加入氢氧化锂并在280〜420℃下热处理该混合物。 和（c）在650〜750℃下热处理步骤（b）的结果。根据共沉淀时间，锂复合氧化物的平均粒径减小或振实密度增加。 当锂复合氧化物用作正极活性材料时，可以获得具有高容量的锂离子二次电池。

    Cathode ray tube
    5.
    发明申请
    Cathode ray tube 有权
    阴极射线管

    公开(公告)号：US20010052749A1

    公开(公告)日：2001-12-20

    申请号：US09767368

    申请日：2001-01-22

    Applicant: Samsung Display Devices Co., Ltd.

    Inventor： Do-Houn Pyun ,  Wan Kim ,  Chan-Yong Kim

    IPC: H01J029/80 ,  H01J029/10

    CPC classification number: H01J29/861 ,  H01J2229/862

    Abstract: A cathode ray tube includes a panel having a substantially flat outer surface and an inner curved surface with a phosphor screen. The panel has a substantially rectangular effective screen portion with two long sides parallel to each other, two short sides parallel to each other and four rounded edges interconnecting each long side and the neighboring short side. The effective screen portion is structured such that a first line V1 interconnecting centers of the long sides, a second line H1 interconnecting centers of the short sides and a third line D1 interconnecting centers of the rounded edges opposite to each other meet at a point. The effective screen portion has a first thickness Tv at the centers of the long sides, a second thickness Th at the centers of the short sides, a third thickness Td at the centers of the edges and a fourth thickness Tc at the meeting point of the first to third lines V1, H1 and D1. A shadow mask is disposed within the panel such that the shadow mask faces the inner curved surface of the panel. The shadow mask has a curvature corresponding to the inner curved surface of the panel. The ratio of the second thickness Th to the third thickness Td while subtracting the fourth thickness Tc from each thickness satisfies the following condition: 0.75null(ThnullTc)/(TdnullTc)null0.85, and the ratio of the first thickness Tv to the third thickness Td while subtracting the fourth thickness Tc from each thickness satisfies the following condition: 0.75null(TvnullTc)/(TdnullTc)null0.85.

    Abstract translation: 阴极射线管包括具有基本平坦的外表面的面板和具有荧光屏的内曲面。 面板具有基本上矩形的有效屏幕部分，其两个长边彼此平行，两个短边彼此平行，并且四个圆形边缘互连每个长边和相邻的短边。 有效屏幕部分被构造成使得互连长边的中心的第一线V1，互连短边的中心的第二线H1和彼此相对的圆形边缘的互连中心的第三线D1在一点相交。 有效屏幕部分在长边的中心处具有第一厚度Tv，在短边的中心处具有第二厚度Th，在边缘的中心处具有第三厚度Td，在第二厚度Td处于第二厚度T d 第一到第三线V1，H1和D1。 荫罩设置在面板内，使得荫罩面对面板的内弯曲表面。 荫罩具有对应于面板的内曲面的曲率。 第二厚度Th与第三厚度Td的比率，同时从每个厚度减去第四厚度Tc满足以下条件：0.75 <=（Th-Tc）/（Td-Tc）<= 0.85，并且第一厚度Th 厚度Tv至第三厚度Td，同时从每个厚度减去第四厚度Tc满足以下条件：0.75 <=（Tv-Tc）/（Td-Tc）<= 0.85。

    Rare earth oxide coated phosphors and a process for preparing the same
    6.
    发明申请
    Rare earth oxide coated phosphors and a process for preparing the same 失效
    稀土氧化物涂覆的荧光体及其制备方法

    公开(公告)号：US20030219599A1

    公开(公告)日：2003-11-27

    申请号：US10458624

    申请日：2003-06-11

    Applicant: Georgia Tech Research Corporation ,  Samsung Display Devices Co., Ltd.

    Inventor： Wounjhang Park ,  Kazuhito Yasuda ,  Brent K. Wagner ,  Christopher J. Summers ,  Youngrag Do ,  Hong Guen Yang

    IPC: B05D003/02

    CPC classification number: C09K11/584 ,  C09K11/025 ,  Y10T428/2991

    Abstract: The present invention provides surface coated phosphors useful in field emission displays and vacuum fluorescent displays. The surface coated phosphor comprises a thin coating of rare earth oxide, e.g., yttrium oxide, disposed on an uncoated phosphor such as a sulfide phosphor. The present invention further provides a process for preparing a surface coated phosphor comprising contacting the uncoated phosphor with a rare earth hydroxide gel solution to obtain a rare earth hydroxide gel coated phosphor, drying the gel coated phosphor to remove solvent residues, and heat treating the dried rare earth hydroxide gel coated phosphor. The surface coated phosphors of the present invention have improved cathodoluminescence efficiency, coulombic aging resistance, chemical, and/or oxidative stability.

    Abstract translation: 本发明提供可用于场致发射显示器和真空荧光显示器的表面涂覆荧光粉。 表面涂覆的荧光体包括设置在未涂覆的荧光体如硫化物荧光体上的稀土氧化物例如氧化钇的薄涂层。 本发明还提供了一种制备表面被覆荧光体的方法，包括使未涂覆的荧光体与稀土氢氧化物凝胶溶液接触以获得稀土氢氧化物凝胶涂覆的荧光体，干燥凝胶涂覆的磷光体以除去溶剂残余物，并将干燥的 稀土氢氧化物凝胶涂层荧光粉。 本发明的表面被覆荧光体具有改进的阴极发光效率，库仑抗老化性，化学稳定性和/或氧化稳定性。

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