公开(公告)号：EP1063668A2

公开(公告)日：2000-12-27

申请号：EP00401786.9

申请日：2000-06-22

Applicant: NEC CORPORATION

Inventor： Sugimura, Toshikazu ,  Narita, Maki

IPC: H01J1/142

CPC classification number: H01J1/26 ,  H01J1/142

Abstract: A cathode subassembly for color CRTs is provided, which exhibits scarcely the degradation of electron emission capability for at least ordinary lifetime of color CRTs even at a high current density greater than 1 A/cm 2 while it has an equivalent activation time and an equivalent operating temperature to those of former oxide cathodes. The cathode subassembly is comprises (a) a porous cathode pellet (11) formed by a sintered body containing Ni, scandium oxide (Sc 2 O 3 ), and an electron-emissive material; the body being made by sintering a mixture of a Ni powder, a scandium oxide (Sc 2 O 3 ) powder, and an electron-emissive material powder using a HIP process; the pellet having an electron emission surface; and (b) a pellet support (12) for supporting the pellet; the support having a part in contact with the pellet; the part being made of an alloy containing Ni as its main ingredient and at least one metal selected from the group consisting of chromium (Cr), tantalum (Ta), molybdenum (Mo), zirconium (Zr), tungsten (W), and cobalt (Co); the at least one metal selected from the group consisting of Cr, Ta, Mo, Zr, W, and Co serving as a reducing agent for the electron-emissive material. Preferably, the electron-emissive material is a carbonate generated by co-precipitation of Ba, Sr, and Ca.

Abstract translation: 提供了一种用于彩色CRT的阴极子组件，其甚至在具有大于1A / cm 2的高电流密度下几乎不显示彩色CRT的至少普通寿命的电子发射能力的劣化，同时具有等效的激活时间和 与之前的氧化物阴极相当的工作温度。 阴极组件包括（a）由含有Ni，氧化钪（Sc 2 O 3）和电子发射材料的烧结体形成的多孔阴极颗粒（11） 通过使用HIP工艺烧结Ni粉末，氧化钪（Sc 2 O 3）粉末和电子发射材料粉末的混合物来制造体; 该颗粒具有电子发射表面; 和（b）用于支撑所述颗粒的颗粒支撑体（12） 所述支撑件具有与所述丸粒接触的部分; 该部分由以Ni为主要成分的合金和至少一种选自铬（Cr），钽（Ta），钼（Mo），锆（Zr），钨（W）和 钴（Co）; 选自由用作电子发射材料的还原剂的Cr，Ta，Mo，Zr，W和Co组成的组中的至少一种金属。 优选地，电子发射材料是通过Ba，Sr和Ca的共沉淀产生的碳酸盐。

公开(公告)号：EP0778604A1

公开(公告)日：1997-06-11

申请号：EP96402603.3

申请日：1996-12-02

Applicant: THOMSON TUBES & DISPLAYS S.A.

Inventor： Pruvost, Jean-Claude ,  Adamski, Jean-Rémy

IPC: H01J1/26

CPC classification number: H01J1/26

Abstract: An improved cathode structure for a cathode ray tube includes a first metal tube (2) which can receive an emitting part (1) and a heating element (5), a second metal tube (4) constituting the cathode shielding, and means for retaining the first tube in position inside the second, wherein the retaining means are constituted by a single metal piece (16). In a preferential mode of implementation, the metal retention piece is constituted by a crown (10) having branches (11) extending in the direction of the axis of the crown.

Abstract translation: 用于阴极射线管的改进的阴极结构包括可容纳发射部分（1）和加热元件（5）的第一金属管（2），构成阴极屏蔽的第二金属管（4），以及用于保持 所述第一管位于所述第二管内，所述保持装置由单个金属片（16）构成。 在优选的实施方式中，金属保持片由具有沿冠部轴线方向延伸的分支（11）的冠部（10）构成。

公开(公告)号：EP0644569A2

公开(公告)日：1995-03-22

申请号：EP94306754.6

申请日：1994-09-15

Applicant: GOLDSTAR CO. LTD.

Inventor： Jung,Gil Young ,  Lee, Kyeong Sang ,  Park,Hun Gun ,  Ko,Byeong Doo ,  Park, Hun Gun

IPC: H01J1/26 ,  H01J9/04

CPC classification number: H01J1/26

Abstract: An indirect cathode sleeve and manufacturing method thereof capable of substantially reducing electric power consumption of a heater disposed inside the cathode sleeve and simultaneously reducing a picture-producing time by making an inside surface of the cathode sleeve oxidized and an outside surface of the thereof reduced.
The cathode sleeve according to the present invention includes a heater disposed inside the cathode sleeve; a base metal formed at the top of cathode sleeve; an electron-emitting material layer formed at the outside surface of the base metal; and an indirect cathode sleeve including a black inside surface thereof and a white outside surface thereof.
The method for manufacturing an indirect cathode sleeve includes the steps of forming a structure of a cathode sleeve consisting of a bimetal which consist of a NickelChrome alloy at an inside surface of the cathode sleeve and a Nickel alloy at an outside surface of the cathode sleeve; oxidizing the inside surface of the cathode sleeve through a high temperature wet hydrogen environment; selectively etching the outside surface of the cathode sleeve, as a result, forming a base metal at the top of the cathode sleeve; and forming an electron-emitting material layer at the outside surface of the base metal.

Abstract translation: 一种间接阴极套筒及其制造方法，其能够大幅度降低设置在阴极套筒内部的加热器的电力消耗，同时通过使阴极套筒的内表面被氧化并使其外表面减小而同时缩短图像生成时间。 根据本发明的阴极套管包括设置在阴极套筒内部的加热器; 形成在阴极套筒顶部的贱金属; 形成在母材的外表面的电子发射材料层; 以及包括其黑色内表面和其白色外表面的间接阴极套管。 制造间接阴极套筒的方法包括以下步骤：在阴极套筒的内表面处形成由镍金属合金构成的双金属构件和在阴极套管的外表面处的镍合金构成的阴极套管; 通过高温湿氢环境氧化阴极套管的内表面; 选择性地蚀刻阴极套筒的外表面，结果在阴极套筒的顶部形成基底金属; 以及在母材的外表面形成电子发射材料层。

公开(公告)号：EP0616353A2

公开(公告)日：1994-09-21

申请号：EP94104130.3

申请日：1994-03-16

Applicant: KABUSHIKI KAISHA TOSHIBA

Inventor： Hara, Akihito, c/o Intellectual Property Division ,  Higuchi, Toshiharu, c/o Intellectual Property Div. ,  Yakabe, Toru, c/o Intellectual Property Division ,  Kanda, Shigeo, c/o Intellectual Property Division ,  Yamamoto, Eiji, c/o Intellectual Property Division

IPC: H01J1/26 ,  H01J9/04

CPC classification number: H01J1/26 ,  H01J9/04 ,  H01J2209/012

Abstract: In a method of forming a coating on an electron emitting cathode, in which a black coating (23) is formed on the inner surface of a cathode sleeve (15) constituting the electron emitting cathode, the cathode sleeve (15) is filled with a suspension as a coating material, and a porous absorbent member is brought into contact with or near an opening portion of the cathode sleeve at the same time or after the cathode sleeve (15) is filled with the suspension, thereby causing the porous absorbent member to absorb an unnecessary portion of the suspension. Thereafter, the cathode sleeve (15) to which the coating material is adhered is heat-treated. As a result, a black coating (23) having a uniform thickness is formed, on the inner surface of the cathode sleeve, as a sintered layer obtained by mixing tungsten having an average particle diameter in a range of 0.5 µm (inclusive) to 2 µm (inclusive) with alumina having an average particle diameter in a range of 0.1 µm (inclusive) to 1 µm (exclusive) at a weight ratio of the tungsten to the alumina in a range of (90 : 10) to (65 : 35).

Abstract translation: 在电子发射阴极上形成涂层的方法中，其中在构成电子发射阴极的阴极套筒（15）的内表面上形成黑色涂层（23），阴极套筒（15）填充有 悬浮液作为涂料，同时或在阴极套筒（15）充满悬浮液之后，使多孔吸收构件与阴极套筒的开口部分接触或接近开口部分，由此使多孔吸收构件 吸收悬浮液中不必要的部分。 之后，对附着有涂料的阴极套筒（15）进行热处理。 结果，在阴极套筒的内表面上形成具有均匀厚度的黑色涂层（23）作为通过混合平均粒径在0.5μm（包括端值）至2μm的范围内的钨获得的烧结层 （90:10）〜（65:35）的范围内，钨与氧化铝的重量比为0.1μm以上且不含氧化铝的平均粒径为0.1μm以上且不含氧化铝的氧化铝 ）。

公开(公告)号：EP0436360A2

公开(公告)日：1991-07-10

申请号：EP90314024.2

申请日：1990-12-20

Applicant: SAMSUNG DISPLAY DEVICES CO., LTD.

Inventor： Jang, Dong-gil

IPC: H01J1/26 ,  H01J1/28

CPC classification number: H01J29/04 ,  H01J1/26

Abstract: A dispenser cathode for an electron gun comprising a reservoir (2) for thermoelectron emissive material (1) and a sleeve (3) which has an outward flange at the top thereof and receives the reservoir within its upper portion. A heat shielding tube (5) has an inward flange at the top thereof which corresponds to and overlaps with the flange of the sleeve (3) and is welded thereto. A holder supports the heat shielding tube.

Abstract translation: 一种用于电子枪的分配器阴极，其包括用于热电子发射材料（1）的储存器（2）和套筒（3），该套筒（3）的顶部具有向外的凸缘并在其上部容纳储存器。 隔热管（5）在其顶部具有对应于套筒（3）的凸缘并与其重叠的向内的凸缘，并且被焊接到其上。 支架支撑隔热管。

公开(公告)号：EP2148354B1

公开(公告)日：2014-09-24

申请号：EP08752646.3

申请日：2008-05-13

Applicant: Denki Kagaku Kogyo Kabushiki Kaisha

Inventor： TERUI, Yoshinori ,  NONOGAKI, Ryozo

IPC: H01J1/26 ,  H01J1/20 ,  H01J37/063

CPC classification number: H01J37/063 ,  H01J1/20 ,  H01J1/26 ,  H01J37/073 ,  H01J37/075 ,  H01J2237/0216 ,  H01J2237/06316

公开(公告)号：EP2148354A4

公开(公告)日：2011-09-07

申请号：EP08752646

申请日：2008-05-13

Applicant: DENKI KAGAKU KOGYO KK

Inventor： TERUI YOSHINORI ,  NONOGAKI RYOZO

IPC: H01J1/26 ,  H01J1/20 ,  H01J37/063

CPC classification number: H01J37/063 ,  H01J1/20 ,  H01J1/26 ,  H01J37/073 ,  H01J37/075 ,  H01J2237/0216 ,  H01J2237/06316

公开(公告)号：EP1385190A1

公开(公告)日：2004-01-28

申请号：EP02291859.3

申请日：2002-07-24

Applicant: Thomson Licensing S.A.

Inventor： Roquais, Jean-Michel ,  Wierschke, D.J.

IPC: H01J1/142 ,  H01J1/26

CPC classification number: H01J1/26

Abstract: The metallic substrate of this cathode has a thickness ≤ 100 µm and contains a plurality of reducing agents as Si or Al and :

on the top face 111, 0.005 %
on the bottom face 122, Mg weight concentration is inferior to the Mg weight concentration on the top face, and Si or Al weight concentration is superior to Si or Al weight concentration on the top face and superior to 0.02 %.

Lifetime is maximized and turn-on-time is minimized.

Abstract translation: 该阴极的金属基板的厚度≤100μm，并含有多个还原剂，如Si或Al，并且在顶面111上，0.005％

公开(公告)号：EP0845797A3

公开(公告)日：1999-02-17

申请号：EP97120900.2

申请日：1997-11-28

Applicant: MITSUBISHI DENKI KABUSHIKI KAISHA

Inventor： Saito, Masato ,  Teramoto, Hiroyuki ,  Ohira, Takuya

IPC: H01J1/14

CPC classification number: H01J1/142 ,  H01J1/26

Abstract: An electron tube cathode comprises a base (1) formed mainly of nickel, an alloy layer (4) disposed on the base (1) and including nickel and tungsten having a grain size smaller than that of the base, and an electron emissive material layer (5) deposited on the alloy layer, and including an oxide (6) of an alkaline-earth metal containing at least barium, and a rare earth metal oxide (7) of 0.01 to 25 weight percent and containing at least one of scandium oxide and yttrium oxide. The cathode has a life characteristics improved compared with the prior art, even if operated with a current density of 3 A/cm 2 or more.

Abstract translation: 电子管阴极包括主要由镍形成的基体（1），设置在基体（1）上的合金层（4），并且包括具有小于基体的晶粒尺寸的镍和钨以及电子发射材料层 （5），并且包含至少含有钡的碱土金属的氧化物（6）和0.01至25重量％的稀土金属氧化物（7），并且包含至少一种氧化钪 和氧化钇。 即使以3A / cm 2以上的电流密度进行操作，与现有技术相比，阴极的寿命特性得到改善。

公开(公告)号：EP0845797A2

公开(公告)日：1998-06-03

申请号：EP97120900.2

申请日：1997-11-28

Applicant: MITSUBISHI DENKI KABUSHIKI KAISHA

Inventor： Saito, Masato ,  Teramoto, Hiroyuki ,  Ohira, Takuya

IPC: H01J1/14

CPC classification number: H01J1/142 ,  H01J1/26

Abstract: An electron tube cathode comprises a base (1) formed mainly of nickel, an alloy layer (4) disposed on the base (1) and including nickel and tungsten having a grain size smaller than that of the base, and an electron emissive material layer (5) deposited on the alloy layer, and including an oxide (6) of an alkaline-earth metal containing at least barium, and a rare earth metal oxide (7) of 0.01 to 25 weight percent and containing at least one of scandium oxide and yttrium oxide. The cathode has a life characteristics improved compared with the prior art, even if operated with a current density of 3 A/cm 2 or more.