JPH0542768B2 - - Google Patents
Info
- Publication number
- JPH0542768B2 JPH0542768B2 JP8513685A JP8513685A JPH0542768B2 JP H0542768 B2 JPH0542768 B2 JP H0542768B2 JP 8513685 A JP8513685 A JP 8513685A JP 8513685 A JP8513685 A JP 8513685A JP H0542768 B2 JPH0542768 B2 JP H0542768B2
- Authority
- JP
- Japan
- Prior art keywords
- emitting material
- wire
- electron emitting
- oxide electron
- outer diameter
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
- 239000000463 material Substances 0.000 claims description 26
- 238000004804 winding Methods 0.000 claims description 14
- 125000006850 spacer group Chemical group 0.000 claims description 10
- 239000011162 core material Substances 0.000 description 17
- 238000010894 electron beam technology Methods 0.000 description 6
- 238000000605 extraction Methods 0.000 description 6
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 230000001105 regulatory effect Effects 0.000 description 3
- 230000004913 activation Effects 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 2
- 230000005684 electric field Effects 0.000 description 2
- 230000007547 defect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 229910010272 inorganic material Inorganic materials 0.000 description 1
- 239000011147 inorganic material Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000011810 insulating material Substances 0.000 description 1
- 239000010445 mica Substances 0.000 description 1
- 229910052618 mica group Inorganic materials 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- WFKWXMTUELFFGS-UHFFFAOYSA-N tungsten Chemical compound [W] WFKWXMTUELFFGS-UHFFFAOYSA-N 0.000 description 1
- 229910052721 tungsten Inorganic materials 0.000 description 1
- 239000010937 tungsten Substances 0.000 description 1
Landscapes
- Solid Thermionic Cathode (AREA)
- Electrodes For Cathode-Ray Tubes (AREA)
- Cathode-Ray Tubes And Fluorescent Screens For Display (AREA)
Description
【発明の詳細な説明】
産業上の利用分野
本発明は真空容器中に線状の熱陰極を配置し、
放射された電子ビームを制御・変調した後、蛍光
体に衝撃させ、発光させて画像表示を行なう表示
装置等における線状熱陰極に関するものである。[Detailed description of the invention] Industrial application field The present invention arranges a linear hot cathode in a vacuum container,
This relates to a linear hot cathode in a display device, etc., which controls and modulates an emitted electron beam and then impacts a phosphor to emit light to display an image.
従来の技術
通常、蛍光表示管や平板状デイスプレイ装置に
おいては、第２図に示すように線径約20μｍ前後
のタングステンの芯線１０の周囲に酸化物電子放
射材料１１を付着した線状熱陰極１２を用いてい
る。この線状熱陰極１２を架張した状態で芯線を
熱して電子を放出させている。広い表示領域を得
る構造の表示装置では、この線状熱陰極を長く架
張して使用しているが、特開昭54−24570号等に
も示されるように、線状熱陰極（フイラメント）
が振動すると蛍光体の発光光度が変化する。又、
フイラメントが中央部でたるんで制御電極との距
離が変わつて光度が変化する問題もあつた。この
ため、フイラメントの位置規制及び振動防止とし
て、架張領域の中間部にマイカ、あるいはステン
レス線を用いた支持具を当接させて振動を押えて
いた。一方、特開昭54−28445号に見られるよう
に、各発光領域毎にコイル状フイラメントを対応
させて、各フイラメント間は絶縁物で固定する構
造を採ることによりフイラメントの振動を押えて
いた。2. Description of the Related Art Usually, in a fluorescent display tube or a flat display device, as shown in FIG. is used. With this linear hot cathode 12 stretched, the core wire is heated to emit electrons. In display devices with a structure that provides a wide display area, this linear hot cathode is used in a long, stretched manner.
When the phosphor vibrates, the luminous intensity of the phosphor changes. or,
There was also the problem that the filament sagged in the center and the distance from the control electrode changed, causing the luminous intensity to change. Therefore, in order to regulate the position of the filament and prevent vibrations, a support made of mica or stainless steel wire is brought into contact with the middle part of the stretching region to suppress vibrations. On the other hand, as seen in Japanese Patent Application Laid-open No. 54-28445, vibrations of the filaments were suppressed by associating coiled filaments with each light emitting region and fixing the spaces between the filaments with an insulating material.
発明が解決しようとする問題点
特開昭54−24570号に示されている思想では、
フイラメントが長くなると、フイラメント支持具
は中央部一箇所だけでは振動防止は不十分とな
り、周辺部にも支持具が必要となる。この場合、
フイラメントの活性化を行う際のフイラメントの
熱膨張により、フイラメントと支持具との間にズ
レが発生し、フイラメント上の酸化物電子放射材
料にはがれを生じ、電子が放出しなくなるという
欠点があつた。さらに、はがれた酸化物電子放射
材料が周辺の制御電極部へ付着して電子ビームの
通過不良による画像の欠け等が生じていた。又、
特開昭56−28445号に見られる構成では、各コイ
ル状フイラメント間を固定するため、フイラメン
トで発生した熱が固定部から熱拡散してしまい、
表示装置としては大電力が必要となる欠点があ
り、コストを上昇させる要因であつた。Problems to be solved by the invention The idea expressed in JP-A No. 54-24570 is that
As the filament becomes longer, a single filament support at the center will not be sufficient to prevent vibrations, and supports will also be required at the periphery. in this case,
Thermal expansion of the filament during activation of the filament causes misalignment between the filament and the support, causing the oxide electron emitting material on the filament to peel off, resulting in no longer emitting electrons. . Furthermore, the peeled off oxide electron emitting material adhered to the surrounding control electrode portion, causing defects in the image due to poor passage of the electron beam. or,
In the configuration shown in JP-A No. 56-28445, each coiled filament is fixed between each other, so the heat generated in the filament is thermally diffused from the fixed part.
The display device has the disadvantage of requiring a large amount of electric power, which is a factor that increases the cost.
本発明は前記のようなフイラメントの位置規
制、振動の防止及び活性化時の酸化物電子放射材
料のはがれを防ぎ、安定した発光光度が得られ、
かつ低消費電力の表示装置の電子源を実現するも
のである。 The present invention regulates the position of the filament as described above, prevents vibration, and prevents peeling of the oxide electron emitting material during activation, and provides stable luminous intensity.
The present invention also realizes an electron source for a display device with low power consumption.
問題点を解決するための手段
本発明は、この問題点を解決するために、直線
状の芯線の周囲にスパイラル状線を施したヒータ
線と、前記ヒータ線の周囲に付着した酸化物電子
放射材料と、前記スパイラル状巻線に当接して前
記ヒータ線の振動を防止するスペーサとを有し、
前記酸化物電子放射材料を、スパイラル状巻線の
外径と同等かそれ以下の外径としたことを特徴と
する。Means for Solving the Problem In order to solve this problem, the present invention provides a heater wire in which a spiral wire is formed around a straight core wire, and an oxide electron emitting material attached around the heater wire. material, and a spacer that comes into contact with the spiral winding to prevent vibration of the heater wire,
The oxide electron emitting material is characterized in that its outer diameter is equal to or smaller than the outer diameter of the spiral winding.
作 用
フイラメントは直線状の芯線の周囲にスパイラ
ル状の巻線を施したヒータ線とヒータ線の周囲に
付着した酸化物電子放射材料で構成するものであ
り、さらにはこの酸化物電子放射材料をヒータ線
の外径と同程度の外径で付着させたものであるの
で、スパイラル状の巻線間に酸化物電子放射材料
が付着し、凹凸のある線材の凹部に付着したと同
様の状態になるため、酸化物電子放射材料の付着
強度が向上し、はがれにくくなる。また、酸化物
電子放出材料を、芯線上に巻線の外径値とほぼ等
しいか若しくはそれ以下の外径で芯線上に塗布し
たので、振動防止用スペーサには巻線が当接する
ことになり、その当接力は酸化物電子放出材料に
加わる事が無く、芯線周囲の巻線に支持される。
したがつて、酸化物電子放出材料がはがれ落ちる
のがほとんどなくなり、安定した電子放出が得ら
れる。さらに酸化物電子放出材料をはがれのない
状態で振動防止用スペーサにより位置規制して、
線状熱陰極と電極板との間隔を一定に保持できる
ので、距離の変化に起因する電子ビーム透過量の
変化が少なく、安定した光度の表示装置が得られ
る。Function The filament consists of a heater wire with spiral winding around a straight core wire and an oxide electron emitting material attached around the heater wire. Since the material is attached with an outer diameter comparable to the outer diameter of the heater wire, the oxide electron emitting material adheres between the spiral windings, creating a state similar to that of the oxide electron emitting material adhering to the recesses of an uneven wire. Therefore, the adhesion strength of the oxide electron emitting material is improved and it becomes difficult to peel off. In addition, since the oxide electron-emitting material is applied onto the core wire with an outer diameter that is approximately equal to or smaller than the outer diameter of the winding, the winding comes into contact with the vibration-preventing spacer. , the contact force is not applied to the oxide electron emitting material and is supported by the winding around the core wire.
Therefore, the oxide electron-emitting material hardly peels off, and stable electron emission can be obtained. Furthermore, the position of the oxide electron-emitting material is regulated using vibration-preventing spacers without peeling.
Since the distance between the linear hot cathode and the electrode plate can be maintained constant, there is little change in the amount of electron beam transmission due to a change in distance, and a display device with stable luminous intensity can be obtained.
実施例
以下本発明の一実施例を図面に基づいて説明す
る。第１図は線状熱陰極の取付図を示す。１は平
板状の背面電極手段で、これに対向して複数の穴
を形成した平板状の取出電極２が所定間隔の距離
をとつて配設されている。３は線状熱陰極で、タ
ングステン材料の芯線を用いており、該芯線は直
線状の芯線４と直線状の芯線４の周囲にスパイラ
ル状に所定のピツチで巻かれた巻線芯線５より成
り、２つの芯線４，５でヒータ線を構成してい
る。ヒータ線の周囲には酸化物電子放射材料６を
付着させ、その外径はヒータ線の外径とほぼ同程
度に構成している。この線状熱陰極３は図示しな
いバネにより架張されている。７は位置規制手段
としてのスペーサであり、その材質にはガラス等
の絶縁性の無機質材料が用られている。スペーサ
７は取出電極２に電子ビーム取出穴と穴との間に
位置して取り付けられ、取出電極２と線状熱陰極
３との間隔を規制している。スペーサ７は取出電
極２上に複数個配設しているが、背面電極手段１
側に設けても良い。線状熱陰極３を熱すると、背
面電極手段１の電界と取出電極２の電界とで設定
された条件により、電子ビームは所定量矢印Ａ方
向に取出される。Embodiment An embodiment of the present invention will be described below based on the drawings. FIG. 1 shows an installation diagram of a linear hot cathode. Reference numeral 1 denotes a flat plate-shaped back electrode means, and a flat plate-shaped extraction electrode 2 in which a plurality of holes are formed is arranged opposite to this at a predetermined distance. 3 is a linear hot cathode using a core wire made of tungsten material, and the core wire is composed of a straight core wire 4 and a wound core wire 5 spirally wound around the straight core wire 4 at a predetermined pitch. , two core wires 4 and 5 constitute a heater wire. An oxide electron emitting material 6 is attached around the heater wire, and its outer diameter is approximately the same as the outer diameter of the heater wire. This linear hot cathode 3 is stretched by a spring (not shown). A spacer 7 serves as a position regulating means, and is made of an insulating inorganic material such as glass. The spacer 7 is attached to the extraction electrode 2 so as to be located between the electron beam extraction hole and the hole, and regulates the distance between the extraction electrode 2 and the linear hot cathode 3. A plurality of spacers 7 are arranged on the extraction electrode 2, but the back electrode means 1
It may be placed on the side. When the linear hot cathode 3 is heated, a predetermined amount of the electron beam is extracted in the direction of arrow A under conditions set by the electric field of the back electrode means 1 and the electric field of the extraction electrode 2.
発明の効果
１ 酸化物電子方放射材料をスパイラル状の巻線
に付着させているため、１本線の芯材に付着さ
せたものよりはがれにくくなる。Effect of the invention 1 Since the oxide electron emitting material is attached to the spiral winding wire, it is more difficult to peel off than when it is attached to a single wire core material.
２ 酸化物電子放出材料を、芯線上の巻線の外径
値とほぼ等しいか若しくはそれ以下の外径で芯
線上に塗布したので、振動防止用スペーサには
巻線が当接することになり、その当接力は酸化
物電子放出材料に加わる事が無く、芯線周囲の
巻線に支持される。したがつて、酸化物電子放
射材料のはがれはほとんどなくなり、安定した
電子放出が得られる。2. Since the oxide electron-emitting material is coated on the core wire with an outer diameter that is approximately equal to or less than the outer diameter value of the winding on the core wire, the winding comes into contact with the vibration prevention spacer, The contact force is not applied to the oxide electron emitting material and is supported by the winding around the core wire. Therefore, the oxide electron emitting material hardly peels off, and stable electron emission can be obtained.
３ 酸化物電子放射材料のはがれのない状態で、
振動防止用スペーサにより線状熱陰極と電極板
との間隔を規制できるので、距離の変化等に起
因する電子ビーム透過量の変化が少なく、安定
した光度の表示装置が得られる。3. With no peeling of the oxide electron emitting material,
Since the distance between the linear hot cathode and the electrode plate can be regulated by the vibration-preventing spacer, there is little change in the amount of electron beam transmission due to changes in distance, etc., and a display device with stable luminous intensity can be obtained.
第１図は本発明の一実施例を示す線状熱陰極構
成図、第２図は従来の線状熱陰極構成図である。
１……背面電極手段、２……取出電極、３……
線状熱陰極、４……芯線、５……巻線芯線、６…
…酸化物電子放射材料、７……スペーサ。
FIG. 1 is a configuration diagram of a linear hot cathode showing an embodiment of the present invention, and FIG. 2 is a configuration diagram of a conventional linear hot cathode. 1...Back electrode means, 2...Takeout electrode, 3...
Linear hot cathode, 4... Core wire, 5... Winding core wire, 6...
...Oxide electron emitting material, 7...Spacer.
Claims (1)
たヒータ線と、前記ヒータ線の周囲に付着した酸
化物電子放射材料と、前記スパイラル状巻線に当
接して前記ヒータ線の振動を防止するスペーサと
を有し、前記酸化物電子放射材料を、スパイラル
状巻線の外径と同等かそれ以下の外径としたこと
を特徴とする線状熱陰極。1. A heater wire in which a spiral wire is formed around a straight core wire, an oxide electron emitting material attached around the heater wire, and an oxide electron emitting material that comes into contact with the spiral winding to prevent vibration of the heater wire. A linear hot cathode comprising a spacer, wherein the oxide electron emitting material has an outer diameter equal to or smaller than the outer diameter of the spiral winding.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP60085136A JPS61243633A (en) | 1985-04-20 | 1985-04-20 | Linear hot-cathode |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP60085136A JPS61243633A (en) | 1985-04-20 | 1985-04-20 | Linear hot-cathode |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS61243633A JPS61243633A (en) | 1986-10-29 |
| JPH0542768B2 true JPH0542768B2 (en) | 1993-06-29 |
Family
ID=13850235
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP60085136A Granted JPS61243633A (en) | 1985-04-20 | 1985-04-20 | Linear hot-cathode |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS61243633A (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2584048B2 (en) * | 1989-03-13 | 1997-02-19 | 松下電器産業株式会社 | Electron beam generator |
| JPH02288133A (en) * | 1989-04-28 | 1990-11-28 | Matsushita Electric Ind Co Ltd | Electron beam generating device |
| JPH07114102B2 (en) * | 1990-08-10 | 1995-12-06 | 松下電器産業株式会社 | Linear electron source |
| US6161135A (en) | 1997-03-07 | 2000-12-12 | Unisys Corporation | Method and apparatus for software features synchronization between software systems |
| CN106337350B (en) * | 2016-11-21 | 2018-08-21 | 广州快速交通建设有限公司 | The production method of self-bonding road repair pitch module |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6029353B2 (en) * | 1978-10-30 | 1985-07-10 | ノ−ウツド・マ−キング・アンド・イクイツプメント・コンパニ−・インコ−ポレ−テツド | Multiple stamping device |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6029353U (en) * | 1983-07-30 | 1985-02-27 | ソニー株式会社 | Directly heated cathode |
-
1985
- 1985-04-20 JP JP60085136A patent/JPS61243633A/en active Granted
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6029353B2 (en) * | 1978-10-30 | 1985-07-10 | ノ−ウツド・マ−キング・アンド・イクイツプメント・コンパニ−・インコ−ポレ−テツド | Multiple stamping device |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS61243633A (en) | 1986-10-29 |
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