Plasma display panel
    2.
    发明授权
    Plasma display panel 失效
    等离子显示面板

    公开(公告)号:US06831413B2

    公开(公告)日:2004-12-14

    申请号:US10196267

    申请日:2002-07-17

    IPC分类号: H01J1749

    CPC分类号: H01J11/40 H01J11/12

    摘要: A plasma display panel (PDP), consisting of a front panel (10) equipped with display electrodes (8) and a rear panel (4) equipped with address electrodes (3), that displays an image by causing discharge in a small discharge space formed between the two panels; wherein there are provided two layers of protective films (5, 6), made of metallic oxide, covering the dielectric layer (7) installed on the front panel (10); the outer, upper layer (6) being formed into a layer of material with a specific surface area of 20 m2/g or more and a film thickness of 1 &mgr;m or less, exhibiting a high discharge characteristic; and the inner, lower layer (5) being formed into a layer of material with a specific surface area of 10 m2/g or less and a film thickness of 1 &mgr;m or more, exhibiting a low water-adsorption characteristic.

    摘要翻译: 一种等离子体显示面板(PDP),其由配备有显示电极(8)的前面板(10)和配备有寻址电极(3)的后面板(4)组成,其通过在小放电空间中放电而显示图像 两面板之间形成; 其中,设置有两层由金属氧化物制成的覆盖安装在前面板(10)上的电介质层(7)的保护膜(5,6)。 所述外层上层(6)形成比表面积为20m 2 / g以上且膜厚为1μm以下且呈现高放电特性的材料层; 并且所述内下层(5)形成为具有10m 2 / g以下的比表面积和1μm以上的膜厚的材料层,具有低的吸水特性。

    Automatic welding apparatus
    3.
    发明授权
    Automatic welding apparatus 失效
    自动焊接设备

    公开(公告)号:US4229641A

    公开(公告)日:1980-10-21

    申请号:US939151

    申请日:1978-09-01

    申请人: Yasushi Ihara

    发明人: Yasushi Ihara

    摘要: An automatic welding apparatus includes a movable welding torch carried by a positioning assembly mounted on a pair of turn frames adapted to be rotated about a horizontal axis. The positioning assembly is capable of orienting the welding torch with respect to a workpiece holder also mounted on the pair of turn frames. A computer control arrangement accurately positions the torch along three mutually orthogonal axes during welding, and controls the angular position of the pair of turn frames about the horizontal axis. In alternative embodiments, the workpiece holder is mounted on a pair of stationary stands so that the holder is independently rotatable around a horizontal axis which may be coincident with, or offset from, the axis of rotation of the turn frames. The arrangement permits automatic torch positioning for downward butt welding or horizontal fillet welding on the interior or exterior of long box-like or tubular members.

    摘要翻译: 一种自动焊接装置,包括由安装在一对转动架上的定位组件承载的可移动焊炬,该转向架适于围绕水平轴旋转。 定位组件能够将焊炬相对于也安装在一对转动架上的工件保持架定向。 计算机控制装置在焊接期间沿着三个相互垂直的轴准确地定位割炬,并且控制该对转弯架围绕水平轴线的角位置。 在替代实施例中,工件保持器安装在一对固定架上,使得保持器可以围绕水平轴线独立地旋转,水平轴线可以与转向架的旋转轴线重合或偏移。 该布置允许在长箱状或管状构件的内部或外部上的自动割炬定位用于向下对接焊接或水平角焊。