公开(公告)号：US06198225B1

公开(公告)日：2001-03-06

申请号：US09326838

申请日：1999-06-07

Applicant: Gota Kano ,  Yasuhiro Shimada ,  Shinichiro Hayashi ,  Koji Arita ,  Carlos A. Paz de Araujo ,  Joseph D. Cuchiaro ,  Larry D. McMillan

Inventor： Gota Kano ,  Yasuhiro Shimada ,  Shinichiro Hayashi ,  Koji Arita ,  Carlos A. Paz de Araujo ,  Joseph D. Cuchiaro ,  Larry D. McMillan

IPC: G09G310

CPC classification number: G09G3/367 ,  G09G3/22 ,  H01J1/30 ,  H01J2201/306 ,  H01J2329/00

Abstract: A thin film of ferroelectric layered superlattice material in a flat panel display device is energized to selectively influence the display image. In one embodiment, a voltage pulse causes the layered superlattice material to emit electrons that impinge upon a phosphor, causing the phosphor to emit light. In another embodiment, an electric potential creates a remanent polarization in the layered superlattice material, which exerts an electric field in liquid crystal layer, thereby influencing the transmissivity of light through the liquid crystal. The layered superlattice material is a metal oxide formed using an inventive liquid precursor containing an alkoxycarboxylate. The thin film thickness is preferably in the range 50-140 nm, so that polarizabilty and transparency of the thin film is enhanced. A display element may comprise a varistor device to prevent cross-talk between pixels and to enable sudden polarization switching. A functional gradient in the ferroelectric thin film enhances electron emission. Two ferroelectric elements, one on either side of the phosphor may be used to enhance luminescence. A phosphor can be sandwiched between a dielectric and a ferroelectric to enhance emission.

Abstract translation: 平板显示装置中的铁电层状超晶格材料薄膜被通电以选择性地影响显示图像。 在一个实施例中，电压脉冲使得层状超晶格材料发射撞击磷光体的电子，导致磷光体发光。 在另一个实施例中，电位在层状超晶格材料中产生剩余极化，其在液晶层中施加电场，从而影响透过液晶的透射率。 层状超晶格材料是使用本发明的含有烷氧基羧酸盐的液体前体形成的金属氧化物。 薄膜厚度优选在50-140nm的范围内，从而提高薄膜的极化性和透明度。 显示元件可以包括用于防止像素之间的串扰并允许突发极化切换的变阻器装置。 铁电薄膜中的功能梯度增强了电子发射。 可以使用两个铁电元件，一个在荧光体的两侧，以增强发光。 荧光体可以夹在电介质和铁电体之间以增强发射。

公开(公告)号：US6157145A

公开(公告)日：2000-12-05

申请号：US117441

申请日：1998-07-30

Applicant: Frank Vollkommer ,  Lothar Hitzschke

Inventor： Frank Vollkommer ,  Lothar Hitzschke

IPC: H01J1/312 ,  H01J61/54 ,  H01J11/04

CPC classification number: B82Y10/00 ,  H01J1/312 ,  H01J61/545 ,  H01J2201/306

Abstract: A method of operating cold cathode in discharge lamps, including discharge lamps operating with a dielectrically hindered discharge that include two electroconducive electrodes facing each other between which a ferro-electric material is sandwiched. At least one of the electrodes presents one or more openings. When the cathode is operating, a voltage of quickly alternating polarity is applied to both electrodes, thereby freeing electrons on the surface of the ferro-electric material. The working voltage of the discharge lamp causes an acceleration of said electrons, which pass through the openings towards the anode and are used for igniting the discharge lamp and keeping it in an operating mode.

Abstract translation: PCT No.PCT / DE97 / 02881 Sec。 371日期：1998年7月30日 102（e）日期1998年7月30日PCT 1997年12月10日PCT PCT。 公开号WO98 / 26447 日期1998年6月18日在放电灯中操作冷阴极的方法，包括以介电阻碍放电操作的放电灯，其包括彼此面对的两个电导电极，夹在铁电材料之间。 电极中的至少一个具有一个或多个开口。 当阴极工作时，对两个电极施加快速交替极性的电压，从而释放铁电材料表面上的电子。 放电灯的工作电压导致所述电子的加速，其通过开口朝向阳极，并用于点燃放电灯并保持其处于工作模式。

公开(公告)号：US5747926A

公开(公告)日：1998-05-05

申请号：US612577

申请日：1996-03-08

Applicant: Masayuki Nakamoto ,  Hiromichi Ohashi

Inventor： Masayuki Nakamoto ,  Hiromichi Ohashi

IPC: H01J1/30 ,  H01J1/62 ,  H01J1/02 ,  H01J1/16 ,  H01J19/10

CPC classification number: H01J1/30 ,  H01J2201/304 ,  H01J2201/306

Abstract: A ferroelectric cold cathode comprising a ferroelectric layer formed of a ferroelectric material and provided on its one surface with an emitter which is a projection having a sharp tip portion, a first electrode layer formed on one surface of the ferroelectric layer and having an opening allowing the sharp tip portion of the emitter to be exposed therethrough, and a second electrode layer formed on the other surface of the ferroelectric layer. When a voltage is applied between the first electrode and the second electrode, a dielectric polarization is reversed in the ferroelectric layer, resulting in the emission of electrons from the sharp tip portion of the emitter.

Abstract translation: 1.一种铁电体冷阴极，其特征在于，具有由铁电体材料形成的强电介质层，在其一个表面上设置有具有尖锐部分的突起的发射极，形成在所述强电介质层的一个表面上的第一电极层， 要暴露于其中的发射极尖尖部分，以及形成在铁电层的另一个表面上的第二电极层。 当在第一电极和第二电极之间施加电压时，介电极化在铁电层中反转，导致从发射极尖锐部分发射电子。

公开(公告)号：US5453661A

公开(公告)日：1995-09-26

申请号：US228116

申请日：1994-04-15

Applicant: Orlando H. Auciello ,  Gary E. McGuire

Inventor： Orlando H. Auciello ,  Gary E. McGuire

IPC: H01J1/312 ,  H01J63/00 ,  H01J23/34

CPC classification number: B82Y10/00 ,  H01J1/312 ,  H01J63/00 ,  H01J2201/306 ,  H01J2329/00

Abstract: A flat panel display includes a ferroelectric thin film between first and second spaced apart electrodes. The ferroelectric thin film emits electrons upon application of a predetermined voltage between the first and second spaced apart electrodes. The electrons are emitted in an electron emission path and impinge upon a luminescent layer such as a phosphor layer, which produces luminescence upon impingement upon the emitter electrodes. The ferroelectric thin film is preferably about 2 .mu.m or less in thickness and is preferably a polycrystalline ferroelectric thin film. More preferably, the thin ferroelectric film is a highly oriented, polycrystalline thin ferroelectric film. Most preferably, highly oriented ferroelectric thin film has a preferred (001) crystal orientation and is about 2 .mu.m or less in thickness. A flat panel display may be formed of arrays of such display elements. Top and bottom electrodes or side electrodes may be used. The display may be formed using conventional microelectronic fabrication steps.

Abstract translation: 平板显示器包括在第一和第二间隔开的电极之间的铁电薄膜。 铁电薄膜在第一和第二间隔开的电极之间施加预定电压时发射电子。 电子在电子发射路径中发射并撞击在诸如荧光体层的发光层上，其在撞击发射极电极时产生发光。 铁电薄膜的厚度优选为2μm以下，优选为多晶铁电薄膜。 更优选地，薄铁电体膜是高取向多晶薄铁电体膜。 最优选地，高取向铁电薄膜具有优选的（001）晶体取向，并且厚度为约2μm或更小。 平板显示器可以由这种显示元件的阵列形成。 可以使用顶部和底部电极或侧面电极。 显示器可以使用常规的微电子制造步骤形成。

公开(公告)号：US20160148773A1

公开(公告)日：2016-05-26

申请号：US14903602

申请日：2014-08-11

Applicant: ARIEL - UNIVERSITY RESEARCH AND DEVELOPMENT COMPANY, LTD.

Inventor： Moshe EINAT

IPC: H01J1/30 ,  H01J29/04 ,  H01J23/06

CPC classification number: H01J1/30 ,  H01J23/06 ,  H01J25/025 ,  H01J29/04 ,  H01J2201/306

Abstract: Disclosed are methods and devices suitable for generating electron beams and pulses of radiation. Specifically, in some disclosed embodiments, multiple emitting electrodes of a ferroelectric emitter are sequentially activated, generating a relatively long electron beam pulse that is substantially a series of substantially consecutive short electron beam pulses generated by the sequentially-activated individual emitting electrodes.

Abstract translation: 公开了适于产生电子束和辐射脉冲的方法和装置。 具体来说，在一些公开的实施例中，铁电发射器的多个发射电极被顺序地激活，产生相对较长的电子束脉冲，其基本上是由顺序激活的单个发射电极产生的基本上连续的短电子束脉冲串。

公开(公告)号：US07511409B2

公开(公告)日：2009-03-31

申请号：US11210279

申请日：2005-08-23

Applicant: Hirofumi Yamaguchi ,  Kei Sato ,  Toshikatsu Kashiwaya

Inventor： Hirofumi Yamaguchi ,  Kei Sato ,  Toshikatsu Kashiwaya

IPC: H01J1/14 ,  H01J1/05

CPC classification number: H01J1/312 ,  B82Y10/00 ,  C04B35/493 ,  C04B35/499 ,  C04B2235/3206 ,  C04B2235/3213 ,  C04B2235/3227 ,  C04B2235/3244 ,  C04B2235/3251 ,  C04B2235/3255 ,  C04B2235/3256 ,  C04B2235/3258 ,  C04B2235/3267 ,  C04B2235/3279 ,  C04B2235/3298 ,  C04B2235/5445 ,  C04B2235/76 ,  C04B2235/762 ,  C04B2235/765 ,  C04B2235/768 ,  C04B2235/79 ,  H01J2201/306 ,  H01J2201/3125 ,  H01J2329/00

Abstract: Provided is a piezoelectric-film-type electron emitter which enables suppression of reduction of electron emission quantity due to repeated use thereof, and which exhibits high durability. The electron emitter includes a substrate; an emitter section formed of a dielectric material; a first electrode formed on the top surface of the emitter section; and a second electrode formed on the bottom surface of the emitter section. The dielectric material forming the emitter section contains a dielectric composition having an electric-field-induced strain (i.e., percent deformation under application of an electric field of 4 kV/mm, as measured in a direction perpendicular to the electric field) of 0.07% or less.

Abstract translation: 提供一种能够抑制由于其重复使用而导致的电子发射量减少的压电薄膜型电子发射体，其具有高耐久性。 电子发射体包括基板; 由电介质材料形成的发射极部分; 形成在所述发射部的上表面上的第一电极; 以及形成在发射极部分的底表面上的第二电极。 形成发射极部分的电介质材料包含具有电场诱发应变的电介质组合物（即在垂直于电场的方向上测量的4kV / mm的电场施加下的百分比变形）为0.07％ 或更少。

公开(公告)号：US07482739B2

公开(公告)日：2009-01-27

申请号：US11180975

申请日：2005-07-13

Applicant: Tsutomu Nanataki ,  Hirofumi Yamaguchi ,  Ritsu Tanaka

Inventor： Tsutomu Nanataki ,  Hirofumi Yamaguchi ,  Ritsu Tanaka

IPC: H01J1/14 ,  H01J1/304 ,  H01J1/312

CPC classification number: H01J1/312 ,  B82Y10/00 ,  H01J2201/306 ,  H01J2201/3125 ,  H01J2329/00

Abstract: A dielectric device of higher performance is provided. An electron emitter, to which the dielectric device is applied is provided with: an emitter including a dielectric; and an upper electrode and a lower electrode to which drive voltage is applied in order to emit electrons. The emitter is formed by the aerosol deposition method or the sol impregnation method, and the surface roughness of the upper surface thereof is controlled in the range from 0.1 to 3 in Ra.

Abstract translation: 提供了更高性能的电介质器件。 施加电介质器件的电子发射体设置有：包括电介质的发射体; 以及为了发射电子而施加驱动电压的上电极和下电极。 发射体通过气溶胶沉积法或溶胶浸渍法形成，其上表面的表面粗糙度控制在Ra为0.1〜3的范围内。

公开(公告)号：US20080048569A1

公开(公告)日：2008-02-28

申请号：US11839031

申请日：2007-08-15

Applicant: Kei Sato ,  Tetsuya Hattori ,  Hirofumi Yamaguchi

Inventor： Kei Sato ,  Tetsuya Hattori ,  Hirofumi Yamaguchi

IPC: G09G3/00 ,  B32B15/00

CPC classification number: H01J31/127 ,  B82Y10/00 ,  H01J1/312 ,  H01J2201/306 ,  H01J2201/3125 ,  Y10T428/12667

Abstract: Provided are a dielectric element and an electron emitter exhibiting suppressed deterioration of element characteristics, which deterioration would otherwise occur with repeated use thereof. An electron emitter (i.e., a dielectric element) of the present invention is configured so as to operate through application of a predetermined driving electric field to an emitter layer. The emitter layer is formed of a dielectric layer containing, as a primary component, a PMN-PT-PZ ternary solid solution composition, and having a Curie temperature Tc (° C.) falling within a range of 60≦Tc≦150.

Abstract translation: 提供了表现出元件特性劣化的电介质元件和电子发射体，其反复使用会出现劣化。 本发明的电子发射体（即电介质元件）被配置为通过将预定的驱动电场施加到发射极层而进行工作。 发射极层由包含PMN-PT-PZ三元固溶体组合物作为主要成分的介电层形成，并且居里温度Tc（℃）落在60

公开(公告)号：US20070188069A1

公开(公告)日：2007-08-16

申请号：US11673769

申请日：2007-02-12

Applicant: Kei Sato ,  Tetsuya Hattori ,  Hirofumi Yamaguchi ,  Shuichi Ozawa

Inventor： Kei Sato ,  Tetsuya Hattori ,  Hirofumi Yamaguchi ,  Shuichi Ozawa

IPC: H01J1/00

CPC classification number: H01J1/312 ,  B82Y10/00 ,  H01J1/30 ,  H01J2201/306 ,  H01J2201/312

Abstract: Provided is a piezoelectric-film-type electron emitter of high durability exhibiting suppressed reduction in electron emission quantity, which reduction would otherwise occur with repeated use of the electron emitter. The electron emitter includes a substrate, a lower electrode, an emitter layer, and an upper electrode. The upper electrode has a plurality of openings, and an emitter section located on the top surface of the emitter layer is exposed through the openings to a reduced-pressure atmosphere. The electron emitter is configured so that when a pulse drive voltage Va is applied between the lower electrode and the upper electrode, electrons are accumulated on the emitter section, and then the electrons are emitted toward the reduced-pressure atmosphere. The emitter layer contains a primary component (i.e., a ferroelectric composition) and an additional component. The additional component contains a transition metal oxide of high oxidation number which can serve as an oxidizing agent by being converted into an oxide of the transition metal of lower oxidation number.

Abstract translation: 提供了一种具有高耐久性的压电薄膜型电子发射体，其显示出抑制电子发射量的减少，但是通过反复使用电子发射器将会发生减小。 电子发射器包括衬底，下电极，发射极层和上电极。 上电极具有多个开口，并且位于发射极层的顶表面上的发射极部分通过开口暴露于减压气氛。 电子发射器被配置为使得当在下电极和上电极之间施加脉冲驱动电压Va时，电子在发射极部分积聚，然后电子朝向减压气氛发射。 发射极层包含主要组分（即铁电组合物）和附加组分。 附加成分含有高氧化数的过渡金属氧化物，其可以通过转化为较低氧化数的过渡金属的氧化物而用作氧化剂。

公开(公告)号：US20060157656A1

公开(公告)日：2006-07-20

申请号：US11035447

申请日：2005-01-14

Applicant: Yoseph Bar-Cohen ,  Stewart Sherrit ,  Yakov Krasik ,  Joshua Felsteiner ,  Xiaoqi Bao

Inventor： Yoseph Bar-Cohen ,  Stewart Sherrit ,  Yakov Krasik ,  Joshua Felsteiner ,  Xiaoqi Bao

IPC: G21G4/00

CPC classification number: H05G2/00 ,  H01J1/30 ,  H01J3/02 ,  H01J3/04 ,  H01J27/02 ,  H01J35/06 ,  H01J2201/306

Abstract: The present invention provides a source of plurality of radiation types using a single source that is made of ferroelectric material in the form of a cathode. The generated radiation types consist of ion and electron beams, X-ray, visible light and ultraviolet radiation. These types allow testing the surface and bulk of the same medium while placed in the same location and are providing confirmation and independent measurements of the material properties. The cathode is made with a continuous electrode on one side and a grid shape electrode on the other. This cathode is supported with fixtures that are used to produce various radiation types. Also, control elements are used to define the shape and directivity of the emitted beam. The present invention eliminates the need for plurality of instruments for obtaining required properties of test materials covering both the surface and the bulk of the test medium. The disclosed source emits multiple types of charged particles and radiation using switchable electromechanical elements. The source performance is enhanced by use of a ferroelectric wafer with a high dielectric constant, and the control of the driving pulse shape. A set of stacks and arrays of multiplexed ferroelectric cathode wafers are used to offer various options in the design of the Ferrosource.

Abstract translation: 本发明提供使用由阴极形式的铁电材料制成的单一源的多种辐射类型的源。 产生的辐射类型由离子和电子束，X射线，可见光和紫外线辐射组成。 这些类型允许在放置在相同位置时测试相同介质的表面和体积，并提供对材料性质的确认和独立测量。 阴极由一侧的连续电极和栅状电极构成。 该阴极由用于产生各种辐射类型的固定装置支撑。 此外，控制元件用于限定发射光束的形状和方向性。 本发明不需要多个仪器来获得覆盖测试介质的表面和体积的测试材料所需的性能。 所公开的源使用可转换的机电元件发射多种类型的带电粒子和辐射。 通过使用具有高介电常数的铁电晶片和驱动脉冲形状的控制来增强源性能。 复合铁电阴极晶片的一组堆叠和阵列被用于在Ferrosource的设计中提供各种选择。