Cathode for electron tube and method for manufacturing the same

    公开(公告)号:US07138754B2

    公开(公告)日:2006-11-21

    申请号:US10246396

    申请日:2002-09-19

    CPC classification number: H01J1/20 H01J1/142 H01J9/04

    Abstract: An oxide cathode for an electron tube and a method for manufacturing the oxide cathode are provided. In the oxide cathode including a sleeve for a heater, a metal substrate formed on the top of the sleeve, and an electron emission material layer coated on the metal substrate, the electron emission material layer is formed by coating a carbonate paste containing an alkaline earth metal carbonate, an organic blowing agent, and a vehicle on the metal substrate by screen printing, and thermally treating the coated carbonate paste. Picture quality degradation due to a Moire phenomenon is reduced by coating the carbonate paste by screen printing to provide an even cathode surface, and degradation of the cathode by Joule heat is reduced, thereby improving electron emission and lifespan characteristics of the cathode.

    Method of making a cathode for an electron tube
    3.
    发明授权
    Method of making a cathode for an electron tube 失效
    制造电子管阴极的方法

    公开(公告)号:US06641450B2

    公开(公告)日:2003-11-04

    申请号:US09842786

    申请日:2001-04-27

    CPC classification number: H01J9/04 H01J1/142

    Abstract: A cathode for an electron tube and a preparing method therefor are provided. In the cathode for an electron tube having a base metal and an electron-emitting material layer, the particle size of the micro structure of the surface of the base metal is controlled to be in the range of 3 to 50 &mgr;m. The cathode for an electron tube has an excellent effect of diffusing intermediate products generated during the operation of the cathode, and is capable of consistently supplying a diffusion path of a reducing agent. Also, the cut off drift rate can be reduced, thereby attaining a long life span characteristic.

    Abstract translation: 提供了一种电子管的阴极及其制备方法。 在具有贱金属和电子发射材料层的电子管的阴极中,将母体表面的微结构的粒径控制在3〜50μm的范围内。 用于电子管的阴极具有极好的扩散在阴极操作期间产生的中间产物的效果,并且能够一致地提供还原剂的扩散路径。 此外,可以减少切断漂移率,从而获得长寿命特性。

    Shadow mask for cathode ray tube and method of manufacturing same
    4.
    发明授权
    Shadow mask for cathode ray tube and method of manufacturing same 失效
    阴极射线管阴影掩模及其制造方法

    公开(公告)号:US06247988B1

    公开(公告)日:2001-06-19

    申请号:US09611362

    申请日:2000-07-06

    CPC classification number: H01J9/142

    Abstract: Disclosed is a shadow mask for a cathode ray tube (CRT) and a method of manufacturing the same. The shadow mask includes a nitrogen compound. The method includes the steps of heat-treating a metallic plate having a plurality of apertures formed therein in the presence of a nitriding gas, and press-forming the metallic plate into a shadow mask shape.

    Abstract translation: 公开了阴极射线管(CRT)的荫罩及其制造方法。 荫罩包括氮化合物。 该方法包括在存在氮化气体的情况下对其中形成有多个孔的金属板进行热处理的步骤,并将金属板压制成荫罩形状。

    Panel assembly for cathode ray tube with vibration damping member
    5.
    发明授权
    Panel assembly for cathode ray tube with vibration damping member 失效
    具有减震构件的阴极射线管面板组件

    公开(公告)号:US6100629A

    公开(公告)日:2000-08-08

    申请号:US203544

    申请日:1998-12-01

    CPC classification number: H01J29/073 H01J2229/0744

    Abstract: A panel assembly for a cathode ray tube includes a panel having an inner phosphor screen and a side-wall, and a shadow mask having a plurality of beam-guide apertures. The shadow mask is placed behind the phosphor screen at a predetermined distance. A shadow mask frame is attached under the shadow mask to suspend it in the panel. The panel assembly further includes a plurality of stud pins embedded into the side-wall of the panel, a spring positioned between the shadow mask frame and the stud pins to interconnect them, and a vibration damping member for damping vibration of the shadow mask by converting mechanical stress applied to the shadow mask into electrical energy. The vibration damping member is formed with piezoelectric material layers provided on at least one of an outer periphery of the stud pin and between the spring and mask frame.

    Abstract translation: 用于阴极射线管的面板组件包括具有内荧光屏和侧壁的面板和具有多个光束引导孔的荫罩。 荫罩以预定距离放置在荧光屏的后面。 荫罩框架连接在荫罩下面,将其悬挂在面板中。 所述面板组件还包括嵌入所述面板的侧壁中的多个柱销,设置在所述荫罩框架和所述柱销之间以互连它们的弹簧,以及用于通过转换来阻止所述荫罩的振动的减震构件 施加到荫罩上的机械应力变成电能。 振动阻尼部件形成有压电材料层,该压电材料层设置在螺柱销的外周中的至少一个之间以及弹簧与荫罩框架之间。

    Metal cathode and indirectly heated cathode assembly having the same
    6.
    发明授权
    Metal cathode and indirectly heated cathode assembly having the same 失效
    具有相同的金属阴极和间接加热的阴极组件

    公开(公告)号:US06791251B2

    公开(公告)日:2004-09-14

    申请号:US10077762

    申请日:2002-02-20

    CPC classification number: H01J1/146 H01J1/20

    Abstract: A metal cathode for an electron-emission device, and an indirectly heated cathode assembly employing the metal cathode where the metal cathode is formed of a quaternary alloy including 0.1-20% by weight barium (Ba), 0.1-20% by weight a metallic mobilizer facilitating Ba diffusion, a metal with a difference in atomic radius of at least 0.4 Angstrom from the atomic radius of platinum (Pt) or palladium (Pd), the metal being in the range of 0.01 to 30% by weight, and a balance of at least one of Pt and Pd. The metal cathode has a low operating temperature due to its reduced work function with improved current emission capability. The metal cathode can be used for a longer lifetime at high current density. Therefore, the metal cathode can be used effectively in electron-beam devices, such as a Braun tube or picture tube, satisfying larger size, longer life span, high definition, and high luminance requirements of the devices.

    Abstract translation: 用于电子发射器件的金属阴极和使用金属阴极的间接加热的阴极组件,其中金属阴极由包含0.1-20重量%的钡(Ba),0.1-20重量%的金属 促进Ba扩散的迁移剂,原子半径不同于铂(Pt)或钯(Pd)的原子半径至少0.4埃的金属,金属在0.01至30重量%的范围内,余量 的Pt和Pd中的至少一种。 金属阴极具有低的工作温度,由于功率降低,电流发射能力得到改善。 金属阴极可以在高电流密度下使用更长的寿命。 因此,金属阴极可以有效地用于诸如布朗管或显像管的电子束器件中,满足更大尺寸,更长寿命,高清晰度和高亮度要求的器件。

    Laminated spring structure for CRT
    7.
    发明授权
    Laminated spring structure for CRT 失效
    CRT复合弹簧结构

    公开(公告)号:US06188168B1

    公开(公告)日:2001-02-13

    申请号:US09179510

    申请日:1998-10-27

    CPC classification number: H01J29/073 H01J2229/0711

    Abstract: A spring used in a CRT interconnects a stud pin embedded into a CRT panel and a mask frame mounting a shadow mask thereon so that the spring removably mounts the shadow mask within the CRT panel. In order to minimize or interrupt a vibration energy transmitted to the shadow mask, the spring is formed with a composite metal plate having a laminated structure of more than two materials capable of converting the vibration energy applied thereto into a thermal energy by an internal or interfacial friction. The composite metal plate is preferably composed of a first steel, a zinc alloy, and a second steel. A method of making the spring includes the steps of plating two or more metallic materials in sequence, rolling the plated metallic materials into an integrated composite metal plate, and forming the composite metal plate into a spring shape.

    Abstract translation: CRT中使用的弹簧互连嵌入CRT面板的螺柱销和在其上安装荫罩的荫罩框架,使得弹簧可拆卸地将荫罩安装在CRT面板内。 为了最小化或中断传递到荫罩的振动能量,弹簧形成有复合金属板,该复合金属板具有多于两种材料的层叠结构,能够通过内部或界面将施加到其上的振动能量转化为热能 摩擦。 复合金属板优选由第一钢,锌合金和第二钢构成。 制造弹簧的方法包括依次镀敷两种或更多种金属材料的步骤,将镀覆的金属材料滚动成一体的复合金属板,并将复​​合金属板形成为弹簧形状。

    Shadow mask for cathode ray tube and method of manufacturing same
    8.
    发明授权
    Shadow mask for cathode ray tube and method of manufacturing same 失效
    阴极射线管阴影掩模及其制造方法

    公开(公告)号:US06313573B1

    公开(公告)日:2001-11-06

    申请号:US09234925

    申请日:1999-01-21

    CPC classification number: H01J29/07 H01J2229/0738

    Abstract: A shadow mask includes an aperture portion having a plurality of apertures formed therein, the aperture portion being formed over a predetermined area in a center of the shadow mask; and a non-aperture portion defining a periphery of the shadow mask and formed adjacent to the aperture portion. Only the aperture portion is selectively heat-treated to result in a tensile strength of the aperture portion being 1.2 to 3 times greater than that of the non-aperture portion, and the modulus of elasticity of the aperture portion being 1.5 to 3 times greater than that of the non-aperture portion. The method includes the steps of selectively performing a heat-treating process on only the aperture portion of the shadow mask by mounting a separating cover on the non-aperture portion, the separating cover preventing contact of the non-aperture portion with the gaseous atmosphere present during the heat treating process. The shadow mask is then press-formed.

    Abstract translation: 荫罩包括具有形成在其中的多个孔的开口部分,所述开口部分形成在荫罩的中心的预定区域上; 以及限定荫罩的周边并与孔部相邻形成的非开口部。 只有开口部分被选择性地热处理,导致开口部分的拉伸强度比非开口部分的拉伸强度大1.2倍,而开口部分的弹性模量是1.5〜3倍 非孔径部分的。 该方法包括以下步骤:通过在非开口部分上安装分离盖,仅对荫罩的开口部分进行热处理工艺,防止非开口部分与气体气氛接触的分离盖 在热处理过程中。 然后将荫罩压制成型。

    Shadow mask for cathode ray tube and method of manufacturing same
    9.
    发明授权
    Shadow mask for cathode ray tube and method of manufacturing same 失效
    阴极射线管阴影掩模及其制造方法

    公开(公告)号:US06252343B1

    公开(公告)日:2001-06-26

    申请号:US09235904

    申请日:1999-01-20

    CPC classification number: H01J9/142 H01J29/07 H01J2229/0733

    Abstract: Disclosed is a shadow mask for a cathode ray tube (CRT) and a method of manufacturing the same. The shadow mask includes a solid solution hardening material and a precipitation hardening material. The method includes the steps of heat treating a metallic plate having a plurality of apertures formed therein using a carburizing gas, and press-forming the metallic plate into a shadow mask shape.

    Abstract translation: 公开了阴极射线管(CRT)的荫罩及其制造方法。 荫罩包括固溶硬化材料和沉淀硬化材料。 该方法包括使用渗碳气体对其中形成有多个孔的金属板进行热处理的步骤,并将金属板压制成荫罩形状。

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