JPS63248034A - Manufacture of cathode-ray tube - Google Patents
Manufacture of cathode-ray tubeInfo
- Publication number
- JPS63248034A JPS63248034A JP8091087A JP8091087A JPS63248034A JP S63248034 A JPS63248034 A JP S63248034A JP 8091087 A JP8091087 A JP 8091087A JP 8091087 A JP8091087 A JP 8091087A JP S63248034 A JPS63248034 A JP S63248034A
- Authority
- JP
- Japan
- Prior art keywords
- cathode
- ray tube
- heater
- getter
- ions
- 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.)
- Granted
Links
- 238000004519 manufacturing process Methods 0.000 title claims description 9
- 230000032683 aging Effects 0.000 claims abstract description 21
- 238000000034 method Methods 0.000 claims description 11
- 150000002500 ions Chemical class 0.000 abstract description 12
- 229930195733 hydrocarbon Natural products 0.000 abstract description 9
- 150000002430 hydrocarbons Chemical class 0.000 abstract description 9
- 239000004215 Carbon black (E152) Substances 0.000 abstract description 8
- 230000006866 deterioration Effects 0.000 abstract description 5
- 239000010406 cathode material Substances 0.000 abstract description 2
- 230000003247 decreasing effect Effects 0.000 abstract 2
- 230000005284 excitation Effects 0.000 abstract 1
- 239000002245 particle Substances 0.000 description 14
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 8
- 229910052799 carbon Inorganic materials 0.000 description 8
- -1 carbon ions Chemical class 0.000 description 8
- 238000010894 electron beam technology Methods 0.000 description 8
- 229910002092 carbon dioxide Inorganic materials 0.000 description 5
- 239000001569 carbon dioxide Substances 0.000 description 4
- 238000010586 diagram Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- 238000010438 heat treatment Methods 0.000 description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 description 1
- 229910052788 barium Inorganic materials 0.000 description 1
- DSAJWYNOEDNPEQ-UHFFFAOYSA-N barium atom Chemical compound [Ba] DSAJWYNOEDNPEQ-UHFFFAOYSA-N 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 239000012528 membrane Substances 0.000 description 1
Landscapes
- Manufacture Of Electron Tubes, Discharge Lamp Vessels, Lead-In Wires, And The Like (AREA)
Abstract
Description
【発明の詳細な説明】
〔産業上の利用分野〕
本発明は陰極線管の製造方法に係り、特に排気工程の排
気完了後にゲッターフラッシュを行い、その後エージン
グ工程を行う陰極線管の製造方法に関する。DETAILED DESCRIPTION OF THE INVENTION [Industrial Application Field] The present invention relates to a method for manufacturing a cathode ray tube, and more particularly to a method for manufacturing a cathode ray tube in which a getter flash is performed after completion of an exhaust process, and then an aging process is performed.
陰極線管の製造工程において、排気完了後にゲッターフ
ラッシュを行った場合、管内のガス成分は炭化水素（Ｃ
ｍＨｎ）を主体とするものとなっている。このため、次
工程のエージング中ｌこ陰極より放出される電子が前記
炭化水素系のガス粒子に衝突し、炭化イオン（Ｃ）が生
じ、この炭化イオンが陰極表面に付着して熱電子放出能
力を低下させる。In the manufacturing process of cathode ray tubes, when a getter flash is performed after completion of evacuation, the gas components inside the tube become hydrocarbons (C
mHn). Therefore, during aging in the next step, electrons emitted from the cathode collide with the hydrocarbon gas particles to generate carbide ions (C), which adhere to the surface of the cathode and have the ability to emit thermionic electrons. decrease.
従来、かかる問題を解消するものとして、例えば特開昭
６１−５８１４０号公報に記載のように、エージング工
程時にネック部より偏向磁界を与えて、ガス粒子を偏向
しながら陰極の活性化を行うことにより、炭化物の陰極
表面への付着を防止することが知られている。Conventionally, in order to solve this problem, as described in Japanese Patent Application Laid-Open No. 61-58140, a deflection magnetic field is applied from the neck part during the aging process to activate the cathode while deflecting the gas particles. It is known that this method prevents carbide from adhering to the cathode surface.
排気完了後のゲッターフラッシュｌこより管内に生じた
炭化水素系のガス粒子は、ゲッター膜（Ｂａ膜）に非常
に吸着されにくい。Hydrocarbon gas particles generated in the getter flash tube after completion of evacuation are very difficult to be adsorbed by the getter film (Ba film).
上記従来技術は、エージング工程において、ゲッター膜
に吸着されにくいガス粒子が多量に存在することにより
、エージング工程で陰極より放出された電子がガス粒子
に多量に衝突する。このため、エージング工程でガス粒
子がイオン化され、炭化されたイオンの陰極表面への付
着を防止するという効果が充分に得られないという問題
があった。In the above-mentioned conventional technology, in the aging process, a large amount of gas particles that are difficult to be adsorbed by the getter film exist, so that a large amount of electrons emitted from the cathode collide with the gas particles in the aging process. For this reason, there is a problem in that gas particles are ionized in the aging step, and the effect of preventing carbonized ions from adhering to the cathode surface cannot be sufficiently obtained.
特に、陰極線管の大きさがゲッターのバリウム充填量に
対して小さい場合とか、最近各社で使用され始めたフリ
ツタプルソゲツタ−球（こついては、前記した問題が顕
著である。The above-mentioned problem is particularly noticeable when the size of the cathode ray tube is small compared to the amount of barium filled in the getter, or when using the frittuple getter bulbs that have recently started to be used by various companies.
本発明の目的は、炭化されたイオンの陰極表面への付着
をより効果的に防止することができる陰極線管の製造方
法を提供することにある。An object of the present invention is to provide a method for manufacturing a cathode ray tube that can more effectively prevent carbonized ions from adhering to the cathode surface.
上記目的は、ゲッターフラッシュ後、ヒータのみを一定
時間点火させ、その後エージング工程を行うことにより
達成される。The above object is achieved by igniting only the heater for a certain period of time after the getter flash, and then performing an aging process.
ゲッターフラッシュにより管内に生じた炭化水素系のガ
ス粒子は、ヒータの加熱温度によりゲッター膜に吸着さ
れやすい２酸化炭素（ＣＯ２）と水分（ＨｔＯ）ζこ変
化し１、どんどんゲッター膜に吸着され、管内の真空度
が良くなる。The hydrocarbon gas particles generated in the tube by the getter flash change into carbon dioxide (CO2) and water (HtO), which are easily adsorbed by the getter film due to the heating temperature of the heater. Improves the degree of vacuum inside the tube.
この真空度が良くなった状態、即ち炭化水素系のガス粒
子が少ない状態でエージングを行うので、炭化イオンの
量が少なくなり、陰極表面への炭化イオンの付着がより
効果的（こ防止される。これｌこより、エミッション特
性の劣化を防止できる。Since aging is performed in a state where the degree of vacuum is improved, that is, in a state where there are fewer hydrocarbon gas particles, the amount of carbide ions is reduced, and the adhesion of carbide ions to the cathode surface is more effectively prevented. This makes it possible to prevent deterioration of the emission characteristics.
以下、本発明の一実施例を第１図及び第２図により説明
する。第１図は陰極線管のエージング状態を示し、１は
ヒータ、２は陰極、３．４．５．６はそれぞれ第１、第
２、第３、第４クリツド、７は陰極線管である。ゲッタ
ーフラッシュ後の陰極線管７内には、ゲッター膜に吸着
されにくい炭化水素（ＣｍＨｎ）系のガス粒子８が残留
ガスの大半を占めている。また陰極線管７内の真空度は
、第２図に示すように、排気完了後は入状態にあったも
のが、ゲッター７ランシユ後はＢの状態に悪くなってい
る。An embodiment of the present invention will be described below with reference to FIGS. 1 and 2. FIG. 1 shows the aging state of a cathode ray tube, where 1 is a heater, 2 is a cathode, 3, 4, 5 and 6 are first, second, third and fourth cribs, respectively, and 7 is a cathode ray tube. In the cathode ray tube 7 after the getter flash, most of the residual gas is comprised of hydrocarbon (CmHn) gas particles 8 that are difficult to be adsorbed by the getter film. Further, as shown in FIG. 2, the degree of vacuum inside the cathode ray tube 7 was in the on state after completion of evacuation, but it deteriorated to state B after the getter 7 was run.
そこで、ゲッターフラッシュ後、ヒータ１の点火だけを
行う（他の電極（こは印加しない）と、ヒータ１の加熱
温度により炭化水素系のガス粒子８はゲッター膜に吸着
されやすい二酸化炭素（Ｃｏ□）と水分Ｕ（ｔＯ）に変
化し、どんどんゲッター膜に吸着される。このため、陰
極線管７内の真空度は、第２図（こ示すようにヒータ１
の点火時間ζこ対応して良くなる。即ち、ヒータ１だけ
の点火時間をＴｉ＋ｃとすると、陰極線管７内の真空度
は、ゲッターフラッシュ後にＢのべ態ζこめったものが
、ヒータ１の点火時間’Ｉ’ＢＣ後にはＣの状態となる
。Therefore, after the getter flash, if only the heater 1 is ignited (without applying any voltage to the other electrodes), the hydrocarbon gas particles 8 will be easily adsorbed by the getter film due to the heating temperature of the heater 1 (carbon dioxide (Co□ ) and moisture U(tO), which are rapidly adsorbed by the getter film.For this reason, the degree of vacuum inside the cathode ray tube 7 is
The ignition time ζ becomes correspondingly better. That is, if the ignition time of only the heater 1 is Ti+c, the vacuum degree inside the cathode ray tube 7 will be the state of B plus ζ after the getter flash, but after the ignition time of the heater 1 'I' BC, the degree of vacuum inside the cathode ray tube 7 will be the state of C. Become.
前記ヒータ１だけの点火時間＋ｉｌ、ｃは、陰極線管７
及びゲッターの大きざ、ヒータｌのパワーζこより変る
が、数分・〜数１０分が適正である。また別の観点から
すれば、真空度Ｃが１０−’ 〜ｌ Ｏ−”ｌ’ｏｒｒ
オーダ以下になるまでヒータ１を点火することになる。The ignition time +il,c of the heater 1 alone is the cathode ray tube 7.
Although it varies depending on the size of the getter and the power ζ of the heater l, several minutes to several tens of minutes is appropriate. From another point of view, the degree of vacuum C is 10-' ~l O-"l'orr
The heater 1 will be ignited until the temperature drops below the order of magnitude.
次に前記のように真空度が良くなった状態Ｃ１即ちガス
粒子８が少なくなった状態でエージングを行う。このエ
ージングは、ヒータ１に通電して陰極２の陰極物質を加
熱し、更に第１１第２グリツド３．４に正電位を印加し
て行う。また必要に応じて第３、第４グリツド５．６に
も正電位を印加する。なお、第１図において、９は電子
ビームを示す。Next, aging is performed in a state C1 in which the degree of vacuum is improved, that is, in a state in which the number of gas particles 8 is reduced as described above. This aging is performed by energizing the heater 1 to heat the cathode material of the cathode 2 and further applying a positive potential to the eleventh second grid 3.4. A positive potential is also applied to the third and fourth grids 5.6 as necessary. In addition, in FIG. 1, 9 indicates an electron beam.
このようｌこ、真空度が良くなった状態Ｃ１即ちガス粒
子８が少なくなった状態でエージングを行うので、炭化
イオンの量が少なくなり、陰極２の表面への炭化イオン
の付着がより効果的Ｅこ防止され、エミッション特性の
劣化を防止できる。In this way, since aging is performed in a state C1 where the degree of vacuum is improved, that is, in a state where the number of gas particles 8 is reduced, the amount of carbide ions is reduced, and the adhesion of carbide ions to the surface of the cathode 2 is more effective. E is prevented, and deterioration of emission characteristics can be prevented.
第３図及び第４図は本発明の他の実施例を示す。3 and 4 show other embodiments of the invention.
ゲッターフラッシュ後、第３図＋ａ）に示すように、数
分〜数１０分間、陰極線管７のパネル全面にラスターパ
ターン１０ａを出してやる。ラスターパターンとは、陰
極線管７の実装状態でパネルの螢光面を光らせた状態を
いう。After the getter flash, a raster pattern 10a is produced over the entire panel of the cathode ray tube 7 for several minutes to several tens of minutes, as shown in FIG. 3+a). The raster pattern refers to a state in which the fluorescent surface of the panel is illuminated when the cathode ray tube 7 is mounted.
このように全面にラスターパターン１０ａを出してやる
と、第３図１ａｌに示すように、一部の電子ビーム９ａ
は直進状傾の軌道をとるが、同図（ｂ）ｌこ示すように
、殆んどの電子ビーム９ｂは偏向状態の軌道をとり、炭
化水素系のガス粒子８は、電子ビーム９ａ、９ｂにより
分解されてイオン化され、そのイオンは他のイオンと反
応してゲッター膜に吸収され易い二酸化炭素（Ｃ０２）
と水（Ｈ２Ｏ） ＋こ変化し、ゲッター膜に吸着され、
短時間に管内の真空度が良くなる。この場合、第３図１
ａｌのように電子ビーム９ａが直進し、その時に分解さ
れた炭素イオン（Ｃ”）は陰極２を直撃する軌道１１ａ
をとるので、一部直撃（こよる劣化があるが、同図ｔｂ
ｌ★こ示すように殆んどの電子ビーム９Ｌ＋は偏向され
ているので、炭素イオン（Ｃ″）は軌道１１ｂを七り、
陰極２を直撃することがない。When the raster pattern 10a is produced on the entire surface in this way, as shown in FIG. 3 1al, part of the electron beam 9a
takes a rectilinear inclined trajectory, but as shown in FIG. Carbon dioxide (C02) is decomposed and ionized, and the ions react with other ions and are easily absorbed by the getter membrane.
and water (H2O) change and are adsorbed on the getter film,
The degree of vacuum inside the tube improves in a short time. In this case, Fig. 3 1
As shown in al, the electron beam 9a travels straight, and the carbon ions (C'') decomposed at that time hit the cathode 2 directly on a trajectory 11a.
Because it takes a part, there is a direct hit (there is some deterioration, but the same figure tb
l★As shown, most of the electron beam 9L+ is deflected, so the carbon ion (C'') shifts the orbit 11b,
The cathode 2 will not be hit directly.
この炭素イオンの陰極２への直撃を防止するには、第３
図（ｂｌに示すように、電子ビームが直進する部分の螢
光体を光らさないようなラスターパターン１０ｂを画か
せてやることにより、第４図（ａ）の状態はなくなり、
全て第４図（ｂｌの状態となるので、炭素イオンが陰極
２（こ直撃するのを非常に少なくできる。To prevent this carbon ion from directly hitting the cathode 2, the third
As shown in Figure (bl), by drawing a raster pattern 10b that does not illuminate the phosphor in the part where the electron beam travels straight, the situation in Figure 4(a) disappears.
Since everything is in the state shown in Figure 4 (bl), it is possible to greatly reduce the direct impact of carbon ions on the cathode 2 (2).
前記のようにラスターパターン１０ａ、１０ｂを出して
やると、ガス粒子８が電子ビーム９ａ。When raster patterns 10a and 10b are produced as described above, gas particles 8 become electron beams 9a.
９ｂによって分解されると共に、前記第１実施例で説明
したヒータ１の加熱による効果も作用するので、第１実
施例の場合に比べ、より短時間で真空度が良くなる。9b, and the effect of heating by the heater 1 explained in the first embodiment also acts, so that the degree of vacuum can be improved in a shorter time than in the first embodiment.
このように真空度が良くなった状態で、第１実施例で説
明したようにエージングを行う。In this state where the degree of vacuum is improved, aging is performed as explained in the first embodiment.
本発明によれば、エージング時の管内真空度が良い状態
、いいかえれ・イ、炭化水素系のガス粒子が少ない状態
でエージングを行うので、電子ビームによりイオン化さ
れる炭素イオン量が少なくなり、陰極表面への炭素イオ
ンの付着がより効果的に防止され、エミンシ：Ｊ７特性
の劣化を防止できる。According to the present invention, aging is performed in a state where the tube has a good degree of vacuum and there are few hydrocarbon gas particles, so the amount of carbon ions ionized by the electron beam is reduced, and the cathode surface It is possible to more effectively prevent carbon ions from adhering to the carbon ion, thereby preventing deterioration of the Eminshi:J7 characteristics.
第１図は陰極線管のエージング状態を示す断面説明図、
第２図は本発明の一実施例を示すヒータ点火による管内
真空度変化図、第３図１ａｌ、（ｂｌは本発明の他の実
施例を示すラスターパターン図、第４図１ａｌ、（ｂ）
は第３ＬＮｌａｌの場合における電子ビームと炭素イオ
ンの軌道図である。
Ｉ ・ヒータ、 ２・・・陰極、３〜６ ・第１
〜第４グリツド、 ７・・・陰極線管、１０ａ、ｌ
Ｏｂ・・・ラスターパターン。
代理人 弁理士 小 川 勝 男
第１Ｆ！ｇＪ
第２図FIG. 1 is a cross-sectional explanatory diagram showing the aging state of a cathode ray tube.
Fig. 2 is a diagram showing changes in the degree of vacuum inside the tube due to heater ignition, showing one embodiment of the present invention, Fig. 3 1al, (bl is a raster pattern diagram showing another embodiment of the present invention, Fig. 4 1al, (b)
is an orbit diagram of an electron beam and carbon ions in the case of the third LNlal. I - Heater, 2... Cathode, 3-6 - 1st
~4th grid, 7... cathode ray tube, 10a, l
Ob...Raster pattern. Agent: Patent Attorney Katsuo Ogawa 1st floor! gJ Figure 2
Claims (1)
シュを行い、その後エージング工程を行う陰極線管の製
造方法において、前記ゲッターフラッシュと前記エージ
ング工程間にヒータのみ一定時間点火させることを特徴
とする陰極線管の製造方法。 ２、陰極線管の排気工程の排気完了後にゲッターフラッ
シュを行い、その後エージング工程を行う陰極線管の製
造方法において、前記ゲッターフラッシュと前記エージ
ング工程間にヒータのみ一定時間点火させると共に、ビ
ームを走査してラスターパターンを画かせることを特徴
とする陰極線管の製造方法。[Scope of Claims] 1. In a method for manufacturing a cathode ray tube in which a getter flash is performed after completion of the exhaust process of the cathode ray tube, and then an aging process is performed, only a heater is ignited for a certain period of time between the getter flash and the aging process. A method for manufacturing a cathode ray tube characterized by: 2. In a method for manufacturing a cathode ray tube in which a getter flash is performed after completion of the exhaust process of the cathode ray tube, and then an aging process is performed, only a heater is ignited for a certain period of time between the getter flash and the aging process, and the beam is scanned. A method for manufacturing a cathode ray tube characterized by drawing a raster pattern.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP62080910A JP2588526B2 (en) | 1987-04-03 | 1987-04-03 | Manufacturing method of cathode ray tube |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP62080910A JP2588526B2 (en) | 1987-04-03 | 1987-04-03 | Manufacturing method of cathode ray tube |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS63248034A true JPS63248034A (en) | 1988-10-14 |
| JP2588526B2 JP2588526B2 (en) | 1997-03-05 |
Family
ID=13731541
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP62080910A Expired - Fee Related JP2588526B2 (en) | 1987-04-03 | 1987-04-03 | Manufacturing method of cathode ray tube |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2588526B2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6565401B1 (en) | 1999-07-21 | 2003-05-20 | Mitsubishi Denki Kabushiki Kaisha | Cathode ray tube manufacturing method and cathode ray tube manufacturing system |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS56161787A (en) * | 1980-05-16 | 1981-12-12 | Hitachi Ltd | Manufacture for cathode ray tube |
| JPS60232635A (en) * | 1984-05-04 | 1985-11-19 | Toshiba Corp | Manufacture of cathode-ray tube |
| JPS6158140A (en) * | 1984-08-30 | 1986-03-25 | Toshiba Corp | Manufacture of cathode-ray tube |
-
1987
- 1987-04-03 JP JP62080910A patent/JP2588526B2/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS56161787A (en) * | 1980-05-16 | 1981-12-12 | Hitachi Ltd | Manufacture for cathode ray tube |
| JPS60232635A (en) * | 1984-05-04 | 1985-11-19 | Toshiba Corp | Manufacture of cathode-ray tube |
| JPS6158140A (en) * | 1984-08-30 | 1986-03-25 | Toshiba Corp | Manufacture of cathode-ray tube |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6565401B1 (en) | 1999-07-21 | 2003-05-20 | Mitsubishi Denki Kabushiki Kaisha | Cathode ray tube manufacturing method and cathode ray tube manufacturing system |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2588526B2 (en) | 1997-03-05 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US6278234B1 (en) | Image display apparatus with gettering substance provided electrically connected to wires | |
| JP3131339B2 (en) | Cathode, cathode ray tube and method of operating cathode ray tube | |
| JP2629521B2 (en) | Electron gun and cathode ray tube | |
| JPS63248034A (en) | Manufacture of cathode-ray tube | |
| US6420828B1 (en) | Low-voltage cathode for scrubbing cathodoluminescent layers for field emission displays and method | |
| JPS6322010B2 (en) | ||
| JP2000251787A (en) | Image forming device and activation method of getter material | |
| JPS63304546A (en) | Manufacture of cathode ray tube | |
| JPH0574324A (en) | Cathode for electron tube | |
| JPH1064429A (en) | Manufacture of image display device | |
| JP2001345041A (en) | Cathode for electron tube | |
| JP3595651B2 (en) | Image forming device | |
| JP3130530B2 (en) | Manufacturing method of cathode ray tube | |
| JPS6044777B2 (en) | Aging method of electron tube | |
| JPH0233837A (en) | Electron beam generation device | |
| JP2004146074A (en) | Electron beam excited light emitting device | |
| JPS6313229A (en) | Manufacture of color cathode-ray tube | |
| JP2000251788A (en) | Image display device and its manufacture | |
| KR20020063955A (en) | Device for removimg a noxious gas of electron gun in cathode ray tube | |
| JP2000048725A (en) | Manufacture of cathode ray tube | |
| JPS5851443A (en) | Method of exhausting cathode-ray tube | |
| JPS59228341A (en) | Manufacture of cathode-ray tube | |
| JPH04115437A (en) | Oxide cathode | |
| JPS6158140A (en) | Manufacture of cathode-ray tube | |
| JPS6394530A (en) | Filamentary hot cathode |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| LAPS | Cancellation because of no payment of annual fees |