公开(公告)号：US07078863B2

公开(公告)日：2006-07-18

申请号：US10381477

申请日：2001-09-27

Applicant: Tetsuya Ide ,  Junichi Sawahata ,  Masao Urayama

Inventor： Tetsuya Ide ,  Junichi Sawahata ,  Masao Urayama

IPC: G09G3/10

CPC classification number: H01J29/488 ,  H01J1/304 ,  H01J3/021 ,  H01J3/029 ,  H01J29/467 ,  H01J2329/00

Abstract: A cold-cathode electron source having an improved utilization efficiency of an electron beam and a simple structure. The cold-cathode electron source comprises a gate electrode (4) provided on a substrate (2) through an insulating layer (3) and an emitter (6) extending through the insulating layer (3) and the gate electrode (4) and disposed in an opening of the gate. During the emission of electrons from the emitter (6), the following relationships are satisfied: 10 [V/μm]≧(Va−Vg)/(Ha−Hg)≧Vg/Hg; and Vg/Hg [V/μm]≧Va×10−4×(9.7−1.3×1n(Hg))×(1000/Ha)0.5, where Ha [μm] is an anode-emitter distance, Va [V] is an anode-emitter voltage, Hg [μm] is a gate-emitter distance, and Vg [V] is a gate-emitter voltage.

Abstract translation: 具有提高电子束的利用效率和简单结构的冷阴极电子源。 冷阴极电子源包括通过绝缘层（3）设置在基板（2）上的栅极（4）和延伸穿过绝缘层（3）和栅电极（4）的发射极（6） 在门口的开口。 在从发射体（6）发射电子的过程中，满足以下关系：10 V / V m =（Va-Vg）/（Ha-Hg）> = Vg / Hg; 和Vg / Hg [V / mum] = Vax10-4×（9.7-1.3x1n（Hg））x（1000 / Ha）<0.5>其中Ha ]是阳极 - 发射极距离，Va [V]是阳极 - 发射极电压，Hg [m]是栅 - 发射极距离，Vg [V]是栅 - 发射极电压。

公开(公告)号：US20060043875A1

公开(公告)日：2006-03-02

申请号：US11212794

申请日：2005-08-25

Applicant: Chun-Gyoo Lee ,  Yong-Soo Choi ,  Byong-Gon Lee ,  Sang-Jo Lee

Inventor： Chun-Gyoo Lee ,  Yong-Soo Choi ,  Byong-Gon Lee ,  Sang-Jo Lee

IPC: H01J1/62

CPC classification number: H01J29/481 ,  H01J3/021 ,  H01J9/148 ,  H01J29/467 ,  H01J31/127

Abstract: An electron emission device which increases the amount of electron emission without heightening the driving voltage for making the electron emission. The electron emission device includes a substrate, first electrodes formed on the substrate, electron emission regions electrically connected to the first electrodes, and second and third electrodes placed at planes different from the first electrodes. The second and the third electrodes receive the same voltage, and form the electric field for emitting electrons from the electron emission regions. Fourth electrodes may be placed at substantially the same plane as the first electrodes, and receive the same voltage as the second and the third electrodes.

Abstract translation: 一种增加电子发射量而不增加用于产生电子发射的驱动电压的电子发射装置。 电子发射器件包括衬底，形成在衬底上的第一电极，与第一电极电连接的电子发射区，以及放置在与第一电极不同的平面处的第二和第三电极。 第二和第三电极接收相同的电压，并形成用于从电子发射区发射电子的电场。 第四电极可以放置在与第一电极基本相同的平面上，并且接收与第二和第三电极相同的电压。

公开(公告)号：US20060033417A1

公开(公告)日：2006-02-16

申请号：US10917309

申请日：2004-08-13

Applicant: Triveni Srinivasan-Rao ,  Ilan Ben-Zvi ,  Jorg Kewisch ,  Xiangyun Chang

Inventor： Triveni Srinivasan-Rao ,  Ilan Ben-Zvi ,  Jorg Kewisch ,  Xiangyun Chang

IPC: H01J31/00 ,  H01J31/26 ,  H01J31/48 ,  H01J43/04

CPC classification number: H01J3/021 ,  H01J23/06 ,  H01J25/04 ,  H05H15/00

Abstract: An electron gun for generating an electron beam is provided, which includes a secondary emitter. The secondary emitter includes a non-contaminating negative-electron-affinity (NEA) material and emitting surface. The gun includes an accelerating region which accelerates the secondaries from the emitting surface. The secondaries are emitted in response to a primary beam generated external to the accelerating region. The accelerating region may include a superconducting radio frequency (RF) cavity, and the gun may be operated in a continuous wave (CW) mode. The secondary emitter includes hydrogenated diamond. A uniform electrically conductive layer is superposed on the emitter to replenish the extracted current, preventing charging of the emitter. An encapsulated secondary emission enhanced cathode device, useful in a superconducting RF cavity, includes a housing for maintaining vacuum, a cathode, e.g., a photocathode, and the non-contaminating NEA secondary emitter with the uniform electrically conductive layer superposed thereon.

公开(公告)号：US20060028111A1

公开(公告)日：2006-02-09

申请号：US11194559

申请日：2005-08-02

Applicant: Young-Jun Park ,  Tae-Won Jeong

Inventor： Young-Jun Park ,  Tae-Won Jeong

IPC: H01J1/05

CPC classification number: H01J3/021 ,  H01J29/467 ,  H01J29/481 ,  H01J31/127

Abstract: A field emission device and a field emission display using the same. The field emission device includes a concave cathode electrode and an emitter formed at a center thereof. A gate electrode and a focusing gate electrode above the gate electrode serve to focus and refocus the electron beam emanating from the emitter to produce a better focused electron beam leading to improved color purity.

Abstract translation: 场发射器件和使用其的场致发射显示器。 场发射器件包括形成在其中心处的凹阴极电极和发射极。 栅电极上方的栅电极和聚焦栅极用于聚焦和重新聚焦从发射极发射的电子束，以产生更好的聚焦电子束，从而提高色纯度。

公开(公告)号：US06987361B1

公开(公告)日：2006-01-17

申请号：US10887142

申请日：2004-07-08

Applicant: John W. Lewellen ,  John Noonan

Inventor： John W. Lewellen ,  John Noonan

IPC: H01J25/00

CPC classification number: H01J3/14 ,  H01J3/021 ,  H01J23/06

Abstract: A novel method of gating electron emission from field-emitter cathodes for radio frequency (RF) electrode guns and a novel cathode that provides a focused electron beam without the need for magnetic fields or a curved cathode surface are provided. The phase and strength of a predefined harmonic field, such as the 3rd harmonic field, are adjusted relative to a fundamental field to cause a field emission cathode to emit electrons at predefined times for the generation of high-brightness electron beams. The emission time is gated responsive to the combined harmonic and fundamental fields and the response of the FE cathode to the combined fields. A planar focusing cathode includes a selected dielectric material, such as a ceramic material, to provide an electron beam emission surface. Metal surfaces are provided both radially around and behind the dielectric material to shape the electric fields that accelerate and guide the beam from the cathode surface.

公开(公告)号：US20060001350A1

公开(公告)日：2006-01-05

申请号：US11169785

申请日：2005-06-30

Applicant: Tadashi Fujieda ,  Kishio Hidaka ,  Mitsuo Hayashibara

Inventor： Tadashi Fujieda ,  Kishio Hidaka ,  Mitsuo Hayashibara

IPC: H01J1/304

CPC classification number: H01J3/021 ,  B82Y10/00 ,  B82Y30/00 ,  B82Y40/00 ,  C01B21/0605 ,  C01B32/162 ,  C01B32/956 ,  C01P2002/54 ,  C01P2004/03 ,  C01P2004/04 ,  C01P2004/13 ,  C01P2004/133 ,  H01J37/073 ,  H01J2201/30469 ,  H01J2209/0223 ,  H01J2237/0635 ,  H01J2237/2815 ,  H01J2237/3175

Abstract: A field emission electron gun has a field emission cathode composed of a carbon fiber and a conductive base for supporting the carbon fiber, an extractor for causing the field emission of electrons, and an accelerator for accelerating the electrons. The carbon fiber contains at least one of trivalent and pentavalent elements. In particular, the trivalent and pentavalent elements are boron and/or nitrogen. The content of at least one of boron and nitrogen in the carbon fiber is 0.1% to 5% at an atomic weight ratio of the contained element to carbon. The diameter of the carbon fiber is 20 nm to 200 nm. Such an electron gun can have a high-brightness electron beam with a narrow energy width. The field emission electron gun is applied to various electron beam apparatus.

Abstract translation: 场发射电子枪具有由碳纤维和用于支撑碳纤维的导电基底构成的场发射阴极，用于引起电子的场发射的提取器和用于加速电子的加速器。 碳纤维含有三价元素和五价元素中的至少一种。 特别地，三价和五价元素是硼和/或氮。 碳纤维中的硼和氮中的至少一种的含量以含有元素与碳的原子重量比为0.1〜5％。 碳纤维的直径为20nm〜200nm。 这种电子枪可以具有具有窄能量宽度的高亮度电子束。 场发射电子枪适用于各种电子束装置。

公开(公告)号：US20050218787A1

公开(公告)日：2005-10-06

申请号：US11085261

申请日：2005-03-22

Applicant: Si-Myeong Kim ,  Il-Hwan Kim ,  Seung-Joon Yoo

Inventor： Si-Myeong Kim ,  Il-Hwan Kim ,  Seung-Joon Yoo

IPC: H01J1/30 ,  H01J1/62 ,  H01J3/02 ,  H01J29/48 ,  H01J31/12

CPC classification number: H01J3/021 ,  H01J29/481 ,  H01J31/127

Abstract: An electron emission device includes: a substrate; first and second electrodes insulated from each other and arranged on the substrate, the first and second electrodes having predetermined shapes; an electron emission region arranged on the substrate; and a first passivation layer covering at least one of the first and second electrodes and exposing at least a portion of the electron emission region. An electron emission display includes: a first substrate and a second substrate opposed to each other; first and second electrodes insulated from each other and arranged transversely to each other on the first substrate, the first and second electrodes having predetermined shapes; an electron emission region arranged on the substrate; a first passivation layer covering at least one of the first and second electrodes and exposing at least a portion of the electron emission region; and an image substrate having an anode electrode and a fluorescent layer formed on the second substrate.

Abstract translation: 电子发射装置包括：基板; 第一和第二电极彼此绝缘并且布置在基板上，第一和第二电极具有预定的形状; 设置在基板上的电子发射区域; 以及覆盖所述第一和第二电极中的至少一个并暴露所述电子发射区域的至少一部分的第一钝化层。 电子发射显示器包括：第一基板和彼此相对的第二基板; 第一和第二电极彼此绝缘并且在第一基板上彼此横向地布置，第一和第二电极具有预定形状; 设置在基板上的电子发射区域; 覆盖所述第一和第二电极中的至少一个并且暴露所述电子发射区域的至少一部分的第一钝化层; 以及具有形成在第二基板上的阳极电极和荧光层的图像基板。

公开(公告)号：US20050212398A1

公开(公告)日：2005-09-29

申请号：US11083095

申请日：2005-03-18

Applicant: Makoto Okano ,  Tetsuya Imai ,  Osamu Kumasaka

Inventor： Makoto Okano ,  Tetsuya Imai ,  Osamu Kumasaka

IPC: H01J29/08 ,  H01J1/304 ,  H01J3/02 ,  H01J63/04

CPC classification number: H01J3/021

Abstract: By making a cathode substrate function as a cathode and applying a voltage to the cathode and an anode, an electron emission element emits an electron from an electron source provided on the cathode substrate, and irradiates the electron onto an electron irradiation surface formed on the anode surface. The electron source is thread-type and provided on the cathode substrate. A deflecting voltage generates the electric field around the electron source. The electron source including a charge receives a power from the generated electric field to curve. Therefore, an irradiation position of the electron moves on the electron irradiation surface. Since it becomes unnecessary to move the electron irradiation surface and the electron source, a configuration of the electron emission element or an apparatus including the electron emission element is not complicated, and can be miniaturized and simple. Further, since the electron source curves, a tip of the electron source and the electron irradiation surface can be close, and a size of a beam spot at the irradiation position can be maintained constant. Therefore, since a mechanism for correcting the size of the beam spot is unnecessary, the configuration of the electron emission element or the apparatus including the electron emission element can be much simpler.

Abstract translation: 通过使阴极基板用作阴极并向阴极和阳极施加电压，电子发射元件从设置在阴极基板上的电子源发射电子，并将电子照射到形成在阳极上的电子照射表面 表面。 电子源为螺纹型，设在阴极基板上。 偏转电压产生电子源周围的电场。 包括电荷的电子源从产生的电场接收功率以进行曲线。 因此，电子的照射位置在电子照射面上移动。 由于不需要移动电子照射表面和电子源，因此电子发射元件或包括电子发射元件的装置的结构不复杂，并且可以小型化和简单化。 此外，由于电子源曲线，电子源的尖端和电子照射表面可以接近，并且照射位置处的光斑的尺寸可以保持恒定。 因此，由于不需要校正束斑的尺寸的机构，所以电子发射元件或包括电子发射元件的装置的结构可以简单得多。

公开(公告)号：US06933664B2

公开(公告)日：2005-08-23

申请号：US10464760

申请日：2003-06-19

Applicant: Shin Kitamura ,  Yoshiyuki Osada

Inventor： Shin Kitamura ,  Yoshiyuki Osada

IPC: H01J29/04 ,  H01J1/304 ,  H01J1/312 ,  H01J3/02 ,  H01J31/12 ,  H01J1/02

CPC classification number: B82Y10/00 ,  H01J1/312 ,  H01J3/021 ,  Y10S977/939

Abstract: An electron emitting device includes a first electrode located on a substrate, an insulating layer located on the first electrode, and a second electrode located on the insulating layer. The second electrode has a first surface and a second surface, which are substantially vertical to a direction that the first electrode and the insulating layer are laminated. The first surface of the second electrode is in contact with the insulating layer. A higher potential than that applied to the second electrode is applied to the first electrode to emit an electron from the second surface.

Abstract translation: 电子发射器件包括位于衬底上的第一电极，位于第一电极上的绝缘层和位于绝缘层上的第二电极。 第二电极具有与第一电极和绝缘层层叠的方向基本垂直的第一表面和第二表面。 第二电极的第一表面与绝缘层接触。 比施加到第二电极的电位高的电位被施加到第一电极以从第二表面发射电子。

公开(公告)号：US20040251805A1

公开(公告)日：2004-12-16

申请号：US10825754

申请日：2004-04-16

Inventor： Zhizhang Chen ,  Ronald L. Enck ,  Sriram Ramamoorthi ,  Qin Liu

IPC: H01J001/00 ,  H01J001/14

CPC classification number: H01J3/02 ,  B82Y10/00 ,  H01J1/30 ,  H01J1/312 ,  H01J3/021 ,  H01J9/022 ,  H01J2237/1205

Abstract: A method for creating an electron lens includes the steps of applying a polymer layer on an emitter surface of an electron emitter and then curing the polymer layer to reduce volatile content.

Abstract translation: 制造电子透镜的方法包括以下步骤：在电子发射体的发射体表面上施加聚合物层，然后固化聚合物层以降低挥发物含量。