Field-emission type cold cathode with enhanced electron beam axis
symmetry
    93.
    发明授权
    Field-emission type cold cathode with enhanced electron beam axis symmetry 失效
    场发射型冷阴极具有增强的电子束轴对称性

    公开(公告)号:US5889359A

    公开(公告)日:1999-03-30

    申请号:US781961

    申请日:1996-12-20

    Applicant: Nobuya Seko

    Inventor: Nobuya Seko

    CPC classification number: H01J3/022

    Abstract: There is provided a field-emission type cold cathode including (a) a substrate at least a surface of which has electrical conductivity, (b) an insulating layer formed on the substrate, (c) an electrically conductive gate electrode formed on the insulating layer, (d) an almost conical, sharp-pointed emitter electrode disposed in a hole formed through the gate electrode and insulating layer, (e) a focusing electrode formed on the insulating layer so that the focusing electrode is located in the same plane as the gate electrode and surrounds the gate electrode, and (f) a feeder line formed in the same plane as the gate electrode. The feeder line extends from the gate electrode into the focusing electrode and being shaped complementarily with the focusing electrode so that the focusing electrode is present at every radial directions as viewed from a center of the emitter electrode. The present invention provides an electron source which has small divergence and has high axis-symmetry, and which can be fabricated by conventional field-emission type cold cathode fabrication methods having no focusing electrodes. Hence, the present invention makes it possible to provide a high-quality cathode at lower cost suitable for an electron source for an electronic tube and an electron beam emitter.

    Abstract translation: 提供场致发射型冷阴极,其包括(a)至少其表面具有导电性的基板,(b)形成在基板上的绝缘层,(c)形成在绝缘层上的导电栅电极 ,(d)设置在通过栅电极和绝缘层形成的孔中的几乎圆锥形的尖锐的发射电极,(e)形成在绝缘层上的聚焦电极,使得聚焦电极位于与 并且围绕栅电极,(f)与栅电极形成在同一平面上的馈线。 馈电线从栅电极延伸到聚焦电极中并且与聚焦电极互补成形,使得从发射电极的中心观察,聚焦电极在每个径向存在。 本发明提供一种发散小,轴对称性高的电子源,可以通过没有聚焦电极的常规场致发射型冷阴极制造方法制造。 因此,本发明使得可以以适合于电子管和电子束发射体的电子源的较低成本来提供高质量的阴极。

    Electron gun with a gamma correct field emission cathode
    94.
    发明授权
    Electron gun with a gamma correct field emission cathode 失效
    电子枪与伽马正确的场发射阴极

    公开(公告)号:US5850120A

    公开(公告)日:1998-12-15

    申请号:US676452

    申请日:1996-07-08

    Inventor: Akihiko Okamoto

    CPC classification number: H01J3/022 H01J2201/30407

    Abstract: An electron gun includes a field emission cold cathode (1) having a first electric potential, a primary gate electrode (2) having a first opening around the top of the cathode (1) and having a second electric potential which is higher than the first electric potential for causing an electron emission from the top of the cathode (1), and a second gate electrode (3) having a second opening around the top of the cathode (1) and having a third electric potential which is higher than the first electric potential and lower than the second electric potential, wherein a first voltage defined as a difference between the first and the second electric potentials varies in proportion to a second voltage defined as a difference between the first and the third electric potentials so as to provide a current-voltage characteristic having an apparent gamma-property. The apparent gamma-property is such that the luminous output of a fluorescent substance (7) of an anode (8) is directly proportional to a signal voltage.

    Abstract translation: 电子枪包括具有第一电位的场发射冷阴极(1),具有围绕阴极(1)的顶部的第一开口的主栅电极(2),并且具有比第一电位高的第一电位 用于从阴极(1)的顶部引起电子发射的电位;以及第二栅电极(3),其具有围绕阴极(1)的顶部的第二开口,并且具有比第一栅极 电位低于第二电位,其中,被定义为第一和第二电位之间的差的第一电压与被定义为第一和第三电位之间的差的第二电压成比例地变化,从而提供 具有表观伽马性质的电流 - 电压特性。 表观γ特性使得阳极(8)的荧光物质(7)的发光输出与信号电压成正比。

    Field effect electron source, associated display device and the method
of production thereof
    96.
    发明授权
    Field effect electron source, associated display device and the method of production thereof 失效
    场效应电子源,相关显示装置及其生产方法

    公开(公告)号:US5836796A

    公开(公告)日:1998-11-17

    申请号:US548039

    申请日:1995-10-25

    Applicant: Joel Danroc

    Inventor: Joel Danroc

    Abstract: Process for the production of a field effect electron source and source obtained by said process, application to display means by cathodoluminescence. On an insulating substrate (2), said source comprises at least one cathode conductor (4), an insulating layer (6) covering the latter, at least one grid (8) formed on the insulating layer, holes (10) being formed through said grid and the insulating layer, and microtips (12) made from an electron emitting, metallic material, formed in said holes and covered with a deposit (13) of carbon diamond or diamond like carbon particles formed by electrophoresis or by joint electrochemical deposition of metal and carbon diamond or diamond like carbon.

    Abstract translation: 用于生产通过所述方法获得的场效应电子源和源的方法,通过阴极发光应用于显示装置。 在绝缘基板(2)上,所述源极包括至少一个阴极导体(4),覆盖其上的绝缘层(6),形成在绝缘层上的至少一个格栅(8),穿过 所述栅格和绝缘层,以及由电子发射金属材料制成的微尖端(12),形成在所述孔中并覆盖有通过电泳形成的碳金刚石或类金刚石碳颗粒沉积物(13),或通过电化学沉积 金属和碳金刚石或类似钻石的碳。

    Vacuum microdevice
    97.
    发明授权
    Vacuum microdevice 失效
    真空微型设备

    公开(公告)号:US5834790A

    公开(公告)日:1998-11-10

    申请号:US824610

    申请日:1997-03-27

    Inventor: Kenichiro Suzuki

    CPC classification number: B82Y15/00 B81B1/008 H01J3/022

    Abstract: A vacuum microdevice having a field-emission cold cathode includes a first electrode having a projection portion formed on its surface, the projection having a sharp tip, an insulating film formed in the region of the first electrode, excluding the sharp tip of the projection portion, a second electrode formed in a region on the insulating film, excluding the sharp tip of the projection portion, to planarize the surface of the second electrode, and a structural substrate bonded to the lower surface of the first electrode and having a recess portion in the bonding surface with the lower surface of the first electrode, the recess portion having a size large enough to cover a recess reflecting the sharp tip of the projection portion formed on the lower surface of the first electrode. The interior of the recess portion formed in the structural substrate communicates with the atmosphere outside the device. A support structure is formed on the surface of the second electrode to surround each projection portion formed on the first electrode. With this structure, a vacuum microdevice which can suppress variations in characteristics due to voids, and exhibit excellent long-term reliability can be provided.

    Abstract translation: 具有场发射冷阴极的真空微型装置包括具有形成在其表面上的突起部分的第一电极,具有尖锐尖端的突起,在第一电极的区域中形成的绝缘膜,除了突起部分的尖端 ,形成在所述绝缘膜上的除了所述突起部分的尖锐尖端之外的区域中的第二电极,以平坦化所述第二电极的表面;以及结构基底,其结合到所述第一电极的下表面,并且具有凹部 与第一电极的下表面的接合表面,凹部具有足够大的尺寸以覆盖形成在第一电极的下表面上的突出部的尖端的凹部。 形成在结构基材中的凹部的内部与装置外部的大气连通。 在第二电极的表面上形成支撑结构,以围绕形成在第一电极上的每个突出部分。 通过这种结构,可以提供能够抑制由空隙引起的特性变化并且显示优异的长期可靠性的真空微型装置。

    Field effect electron source and process for producing said source and
application to display means by cathodoluminescence
    98.
    发明授权
    Field effect electron source and process for producing said source and application to display means by cathodoluminescence 失效
    场效应电子源及其制备方法,用于阴极发光显示装置

    公开(公告)号:US5828162A

    公开(公告)日:1998-10-27

    申请号:US546396

    申请日:1995-10-20

    Abstract: A field effect electron source includes a grid electrode formed over an insulating layer that covers a cathode electrode formed on an insulating substrate. Holes are provided in the grid electrode-insulating layer structure, the holes extending to the cathode electrode formed on the insulating substrate. Electron emitting microheaps are formed within the holes above the exposed portions of the cathode electrode on the substrate. These microheaps each include at least a macropile of carbon diamond or diamond like carbon powder grains surrounded by the sidewalls of the hole.

    Abstract translation: 场效应电子源包括在覆盖形成在绝缘基板上的阴极电极的绝缘层上形成的栅电极。 在栅电极绝缘层结构中设置孔,孔延伸到形成在绝缘基板上的阴极电极。 电子发射微胶片形成在衬底上的阴极电极的暴露部分上方的孔内。 这些微盖板每个包括由孔的侧壁包围的至少一个碳金刚石或金刚石像碳粉颗粒的大孔。

    Method of holding field emission cathode in its standby state
    99.
    发明授权
    Method of holding field emission cathode in its standby state 失效
    将场发射阴极保持在待机状态的方法

    公开(公告)号:US5825134A

    公开(公告)日:1998-10-20

    申请号:US870972

    申请日:1997-06-06

    Applicant: Fuminori Ito

    Inventor: Fuminori Ito

    CPC classification number: G09G3/22 H01J3/022

    Abstract: A field emission cathode has an emitter tip, on a conductive layer, disposed within holes that are formed through an insulating layer deposited on the conductive layer and a gate layer deposited on the insulating layer, respectively. A method according to the present invention comprises the step of applying to the gate layer an activation voltage to activate the emitter tip before operating the field emission cathode with operating gate voltages. The activation voltage is greater than any one of the operating gate voltages but less than a dielectric breakdown voltage.

    Abstract translation: 场致发射阴极具有位于导电层上的发射极尖端,该发射极尖端设置在分别通过沉积在导电层上的绝缘层和沉积在绝缘层上的栅极层形成的孔内。 根据本发明的方法包括在操作具有操作栅极电压的场发射阴极之前,向栅极层施加激活电压以激活发射极尖端的步骤。 激活电压大于任何一个工作栅极电压但小于绝缘击穿电压。

    Cold cathode and cathode ray tube using the cold cathode
    100.
    发明授权
    Cold cathode and cathode ray tube using the cold cathode 失效
    冷阴极和阴极射线管使用冷阴极

    公开(公告)号:US5814931A

    公开(公告)日:1998-09-29

    申请号:US734695

    申请日:1996-10-21

    Inventor: Hideo Makishima

    CPC classification number: H01J3/022

    Abstract: The invention forms on a substrate an electron emission area composed of at least a single micro cold cathode which is composed of an emitter and a gate electrode, arranges plural focusing electrodes surrounding this electron emission area in the periphery of the electron emission area, and connects with each other the focusing electrodes facing each other around the electron emission area. An electron beam having a vertically long spot near the cathode is formed by making more intense the horizontal focusing when the electron beam is scanning the peripheral part of the screen on the basis of a horizontal and a vertical synchronizing signal. Thus the invention can correct distortion of the electron beam caused by deflection and can achieve and excellent resolution all over the display screen, and furthermore, can compose a cathode ray tube using this cold cathode as an electron source.

    Abstract translation: 本发明在基板上形成由至少由发射极和栅电极构成的单个微冷阴极构成的电子发射区域,在电子发射区域的周围配置围绕该电子发射区域的多个聚焦电极,并连接 彼此相对地围绕电子发射区域彼此面对着聚焦电极。 当电子束基于水平和垂直同步信号扫描屏幕的周边部分时,通过使水平聚焦更强烈地形成具有靠近阴极的垂直长点的电子束。 因此,本发明可以校正由偏转引起的电子束的变形,并且可以在整个显示屏上实现和优异的分辨率,此外,可以构成使用该冷阴极作为电子源的阴极射线管。

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