JPH05343006A - Manufacture of cathode-ray tube and electronic field shield member thereof - Google Patents
Manufacture of cathode-ray tube and electronic field shield member thereofInfo
- Publication number
- JPH05343006A JPH05343006A JP15054592A JP15054592A JPH05343006A JP H05343006 A JPH05343006 A JP H05343006A JP 15054592 A JP15054592 A JP 15054592A JP 15054592 A JP15054592 A JP 15054592A JP H05343006 A JPH05343006 A JP H05343006A
- Authority
- JP
- Japan
- Prior art keywords
- conductive film
- ray tube
- electric field
- insulating sheet
- shield member
- 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
Landscapes
- Formation Of Various Coating Films On Cathode Ray Tubes And Lamps (AREA)
- Vessels, Lead-In Wires, Accessory Apparatuses For Cathode-Ray Tubes (AREA)
Abstract
Description
【０００１】[0001]
【産業上の利用分野】この発明は、偏向ヨークから放射
される交番電界の低減を図るようにした陰極線管装置お
よびその電界シールド部材の製造方法に関するものであ
る。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a cathode ray tube device for reducing an alternating electric field radiated from a deflection yoke and a method for manufacturing an electric field shield member thereof.
【０００２】[0002]
【従来の技術】図５は従来の陰極線管の側面図である。
図において、２０はガラスバルブで、ファンネル部１と
パネル部２とで構成される。ファンネル部１はネック部
１ａと、コーン部１ｂと、高圧アノードボタン１ｄを有
するファンネル本体部１ｃとにより構成され、パネル部
２にフリットガラスを用いて封止されている。１ｅはネ
ック部１ａとコーン部１ｂとのつなぎ目で、ネックシー
ルラインと呼ばれる部分であって、ガラス肉厚がやや薄
く、強度が他の部位に比べ弱い部分である。ネック部１
ａには電子銃３が封止され、また、パネル部２の側面に
は防爆特性を保証するための防爆バンド４が巻きつけら
れ、防爆バンド４の四隅にはガラスバルブ２０を図示し
ていない筐体に懸架するための掛止部４ａが一体的に設
けられている。また、ファンネル本体部１ｃに設けられ
た高圧アノードボタン１ｄの周囲には、絶縁のためのシ
リコン樹脂膜５が形成される。また、ファンネル本体部
１ｃの外表面には、陰極線管に静電容量を付加するため
の導電膜６が形成される。この導電膜６は、通常、黒鉛
を塗布することによって形成されている。なお、２１は
陰極線管の管軸である。2. Description of the Related Art FIG. 5 is a side view of a conventional cathode ray tube.
In the figure, 20 is a glass bulb, which is composed of a funnel portion 1 and a panel portion 2. The funnel portion 1 is composed of a neck portion 1a, a cone portion 1b, and a funnel body portion 1c having a high-voltage anode button 1d, and the panel portion 2 is sealed with frit glass. Reference numeral 1e denotes a joint between the neck portion 1a and the cone portion 1b, which is a portion called a neck seal line, which has a slightly thin glass wall and is weaker in strength than other portions. Neck 1
An electron gun 3 is sealed around a, and an explosion-proof band 4 for ensuring the explosion-proof property is wound around the side surface of the panel portion 2. Glass bulbs 20 are not shown at the four corners of the explosion-proof band 4. A hook 4a for suspending the case is integrally provided. Further, a silicon resin film 5 for insulation is formed around the high voltage anode button 1d provided on the funnel body 1c. Further, a conductive film 6 for adding capacitance to the cathode ray tube is formed on the outer surface of the funnel body 1c. The conductive film 6 is usually formed by applying graphite. In addition, 21 is a tube axis of the cathode ray tube.
【０００３】以上のように構成された陰極線管には、図
６に示す偏向ヨーク７がコーン部１ｂとネック部１ａの
間の位置に取り付けられる。この偏向ヨーク７は、水平
偏向コイル７ａ、垂直偏向コイル７ｂ、偏向ヨーク本体
部７ｃによって構成されている。The deflection yoke 7 shown in FIG. 6 is attached to the cathode ray tube constructed as described above at a position between the cone portion 1b and the neck portion 1a. The deflection yoke 7 is composed of a horizontal deflection coil 7a, a vertical deflection coil 7b, and a deflection yoke body portion 7c.
【０００４】陰極線管装置は、ネック部１ａに封止され
た電子銃３から出射された電子ビームが偏向ヨーク７の
水平偏向コイル７ａ、垂直偏向コイル７ｂによって水
平、垂直方向に所定量偏向され、パネル部２の内面に形
成された蛍光膜上を走査して画像を映出する。このとき
の偏向幅は、アノードボタン１ｄに印加する電圧の平方
根に反比例する。In the cathode ray tube device, the electron beam emitted from the electron gun 3 sealed in the neck portion 1a is deflected by a predetermined amount in the horizontal and vertical directions by the horizontal deflection coil 7a and the vertical deflection coil 7b of the deflection yoke 7, An image is displayed by scanning on the fluorescent film formed on the inner surface of the panel unit 2. The deflection width at this time is inversely proportional to the square root of the voltage applied to the anode button 1d.
【０００５】以上のように構成された従来の陰極線管装
置では、偏向ヨーク７で電子ビームを偏向する際に、偏
向ヨーク７を中心に放射状に発生する交番電界をシール
ドする措置が取られていないため、人体に有害とされる
交番電界が陰極線管のファンネル部１およびパネル部２
を透過して、陰極線管の前方に放射されるという問題点
があった。In the conventional cathode ray tube device configured as described above, when the deflection yoke 7 deflects the electron beam, no measure is taken to shield the alternating electric field generated radially around the deflection yoke 7. Therefore, an alternating electric field that is harmful to the human body is generated by the funnel portion 1 and the panel portion 2 of the cathode ray tube.
However, there is a problem in that the light is transmitted through and is emitted to the front of the cathode ray tube.
【０００６】このような問題点を解消するため、交番電
界低減手段を備えた陰極線管装置が用いられている。図
７は交番電界低減手段を備えた第１の従来例の側面図で
ある。図において、８は電界シールド用導電膜で、導電
膜６と電気的に接触するようにコーン部１ｂからネック
部１ａにかけて黒鉛を塗布して、偏向ヨーク７の開口部
前面を覆うような形に形成されている。９は電界シール
ド用導電膜８と偏向ヨーク７のコイル部とを電気的に絶
縁するために装着された絶縁シートで、図８に示すよう
な漏斗状に形成され、ファンネルのコーン部１ｂと、こ
れにつづくネック部１ａを覆うように装着され、この絶
縁シート９の上に偏向ヨーク７が取り付けられる。In order to solve such a problem, a cathode ray tube device provided with an alternating electric field reducing means is used. FIG. 7 is a side view of a first conventional example provided with an alternating electric field reducing means. In the figure, reference numeral 8 is a conductive film for electric field shield, which is coated with graphite from the cone portion 1b to the neck portion 1a so as to make electrical contact with the conductive film 6 so as to cover the front surface of the opening of the deflection yoke 7. Has been formed. Reference numeral 9 denotes an insulating sheet mounted to electrically insulate the electric field shielding conductive film 8 and the coil portion of the deflection yoke 7, which is formed in a funnel shape as shown in FIG. 8 and has a funnel cone portion 1b. It is mounted so as to cover the subsequent neck portion 1a, and the deflection yoke 7 is mounted on the insulating sheet 9.
【０００７】このように構成された陰極線管装置は、導
電膜８をアースすることによって、導電膜８が零Ｖの等
電位面となり、導電膜８は導電膜６と導通しているた
め、偏向ヨーク７の前面領域に電界シールド効果を持つ
面が形成され、偏向ヨーク７からファンネル部１および
フェースパネル２を透過してフェースパネル２の前面に
放射される交番電界を、約４０％程度低減することがで
きる。また、偏向ヨーク７の水平偏向コイル７ａと導電
膜８との間には絶縁シート９が介在しているので、通常
は偏向ヨーク７との間で放電等の問題は生じない。In the cathode ray tube device constructed as described above, the conductive film 8 becomes an equipotential surface of 0 V by grounding the conductive film 8, and the conductive film 8 is electrically connected to the conductive film 6. A surface having an electric field shield effect is formed in the front surface region of the yoke 7, and the alternating electric field emitted from the deflection yoke 7 through the funnel portion 1 and the face panel 2 to the front surface of the face panel 2 is reduced by about 40%. be able to. Further, since the insulating sheet 9 is interposed between the horizontal deflection coil 7a of the deflection yoke 7 and the conductive film 8, there is usually no problem such as discharge with the deflection yoke 7.
【０００８】図９は、交番電界低減手段を備えた第２の
従来例の側面図である。図において、１１は電界シール
ド部材で、図１０に示すように、第１の従来例の絶縁シ
ート９の内面に黒鉛膜１１ａを形成したものである。こ
の電界シールド部材１１は、図９に示すように陰極線管
に装着し、その上に偏向ヨーク７を装着する態様でもっ
て使用され、第１の従来例と同様の効果が得られる。FIG. 9 is a side view of a second conventional example provided with an alternating electric field reducing means. In the figure, reference numeral 11 denotes an electric field shield member which, as shown in FIG. 10, has a graphite film 11a formed on the inner surface of an insulating sheet 9 of the first conventional example. This electric field shield member 11 is used in a mode in which it is mounted on a cathode ray tube and a deflection yoke 7 is mounted thereon as shown in FIG. 9, and the same effect as in the first conventional example can be obtained.
【０００９】[0009]
【発明が解決しようとする課題】従来の陰極線管装置は
以上のように構成されており、第１の従来例では、電界
シールド用導電膜８を形成するのに従来の陰極線管の製
造工程を変更する必要があり、言わば陰極線管の種類を
増やさなければいけないという問題点があった。また、
第２の従来例では、絶縁シート９が取り扱い中に汚れ、
絶縁性が損なわれるという問題があった。The conventional cathode ray tube device is configured as described above. In the first conventional example, the conventional cathode ray tube manufacturing process is used to form the electric field shielding conductive film 8. There was a problem that it was necessary to change the number of types of cathode ray tubes, so to speak. Also,
In the second conventional example, the insulating sheet 9 becomes dirty during handling,
There is a problem that the insulation is impaired.
【００１０】この発明は、上記のような問題点を解消す
るためになされたもので、陰極線管の種類を増やすこと
なく、かつ、絶縁性の損なわれることのないシールド部
材を有する陰極線管装置を得ること、およびそのシール
ド部材の製造方法を得ることを目的とする。The present invention has been made in order to solve the above problems, and provides a cathode ray tube device having a shield member which does not increase the number of types of cathode ray tubes and does not impair the insulating property. It is an object of the present invention to obtain and a method for manufacturing the shield member.
【００１１】[0011]
【課題を解決するための手段】この発明に係る陰極線管
装置は、陰極線管のコーン部に装着する絶縁シートの内
面に接着材でもって塗着されている導電材よりなる導電
膜を有するシールド部材を備えたものである。SUMMARY OF THE INVENTION A cathode ray tube device according to the present invention has a shield member having a conductive film made of a conductive material which is applied to the inner surface of an insulating sheet mounted on a cone portion of the cathode ray tube with an adhesive material. It is equipped with.
【００１２】また、この発明に係る電界シールド部材
は、電界シールド部材の内面に形成されている導電膜の
少なくとも一部が、陰極線管のファンネル部の外面に形
成されている導電膜と電気的に導通した状態となるよう
にしたものである。Further, in the electric field shield member according to the present invention, at least a part of the conductive film formed on the inner surface of the electric field shield member is electrically connected to the conductive film formed on the outer surface of the funnel portion of the cathode ray tube. It is made to be in a conductive state.
【００１３】また、この発明に係る電界シールド部材の
製造方法は、治具に絶縁シートを取り付け、絶縁シート
の外面に接着材を含む導電材を塗布するか、または接着
材を塗布したのち導電材を塗布して乾燥させ、この絶縁
シートを治具から取り外して内外面を反転させるように
した。Further, in the method for manufacturing an electric field shield member according to the present invention, the insulating sheet is attached to the jig and the conductive material containing the adhesive is applied to the outer surface of the insulating sheet, or the conductive material is applied after the adhesive is applied. Was applied and dried, and the insulating sheet was removed from the jig so that the inner and outer surfaces were inverted.
【００１４】[0014]
【作用】この発明に係る陰極線管装置の電界シールド部
材は内面に形成されている導電膜が接着材でもって絶縁
シートに塗着されているので容易に脱落することがな
く、絶縁性が損なわれることが少ない。In the electric field shield member of the cathode ray tube device according to the present invention, since the conductive film formed on the inner surface is coated on the insulating sheet with an adhesive material, the electric field shield member does not easily fall off and the insulating property is impaired. Rarely.
【００１５】また、この発明に係る電界シールド部材に
よれば、ファンネル部の外面に形成されている導電膜を
介して電界シールド部材の導電膜が接地されるので、別
途接地する作業が不要となる。Further, according to the electric field shield member of the present invention, since the conductive film of the electric field shield member is grounded via the conductive film formed on the outer surface of the funnel portion, a separate grounding work is unnecessary. ..
【００１６】また、この発明に係る製造方法によれば、
絶縁シートの内面に形成する導電膜の形状の精度が向上
するとともに、製造工程が簡易となる。According to the manufacturing method of the present invention,
The accuracy of the shape of the conductive film formed on the inner surface of the insulating sheet is improved, and the manufacturing process is simplified.
【００１７】[0017]
実施例１．図１はこの発明の一実施例の断面図、図２は
図１中の一点鎖線の円内の部分の拡大図である。図にお
いて、１４は絶縁シート９の内面に塗布形成された導電
膜で、コーン部１ｂの外面に形成されている導電膜６に
重なって、電気的に接続されており、この電界シールド
部材１１の上に、偏向コイル７が装着される。Example 1. FIG. 1 is a cross-sectional view of an embodiment of the present invention, and FIG. 2 is an enlarged view of a portion within a dashed-dotted line circle in FIG. In the figure, 14 is a conductive film applied and formed on the inner surface of the insulating sheet 9, and is electrically connected to overlap with the conductive film 6 formed on the outer surface of the cone portion 1b. The deflection coil 7 is mounted on the top.
【００１８】また、導電膜１４は、絶縁シート９の前端
部分の所定範囲には形成されることがなく、導電膜１４
の前端から水平偏向コイル７ａまでの沿面距離が長くな
るように構成されており、これによって絶縁シート９に
よる耐電圧特性の維持が図られている。Further, the conductive film 14 is not formed in a predetermined area of the front end portion of the insulating sheet 9, and the conductive film 14 is not formed.
The creepage distance from the front end to the horizontal deflection coil 7a is long, whereby the withstand voltage characteristic of the insulating sheet 9 is maintained.
【００１９】この導電膜１４は、導電材に接着材を混合
した液状のものを絶縁シート９の内面に所望のパターン
で塗布し、乾燥することによって製作される。The conductive film 14 is manufactured by applying a liquid mixture of a conductive material and an adhesive material on the inner surface of the insulating sheet 9 in a desired pattern and drying.
【００２０】実施例２．図３は導電膜１４の他の実施例
を示す断面図で、導電膜１４は、接着材層１５と導電材
層１６の二層で構成されており、導電材に接着材を混合
したものに比して、導電膜１４の導電性が向上する。Example 2. FIG. 3 is a cross-sectional view showing another embodiment of the conductive film 14. The conductive film 14 is composed of two layers of an adhesive material layer 15 and a conductive material layer 16, and the conductive material mixed with the adhesive material is used. In comparison, the conductivity of the conductive film 14 is improved.
【００２１】実施例３．図４はこの発明に係る電界シー
ルド部材の製造方法の一実施例の工程図で、図４（ロ）
に示した漏斗状の治具１７に図４（イ）に示した絶縁シ
ート９を図４（ハ）に示すように挿入し、次に図４
（ニ）、（ホ）に示すように、キャップ１８、１９を装
着して導電膜１４を形成しない部分を覆ったのち、図４
（ヘ）に示すように、スプレーガン２０で導電材と接着
材の混合液を吹付塗装して図４（ト）に示すように導電
膜１４を塗着し、乾燥させる。次にキャップ１８、１９
を取り除いて治具１７から脱着し、図４（チ）に示す状
態の電界シールド部材１１を形成する。その後、内外面
を反転させて図４（リ）に示す電界シールド部材１１を
製作する。Example 3. FIG. 4 is a process drawing of one embodiment of the method for manufacturing an electric field shield member according to the present invention.
The insulating sheet 9 shown in FIG. 4A is inserted into the funnel-shaped jig 17 shown in FIG. 4A as shown in FIG.
As shown in (d) and (e), after attaching the caps 18 and 19 to cover the portion where the conductive film 14 is not formed, FIG.
As shown in (f), a mixed liquid of a conductive material and an adhesive is spray-painted by a spray gun 20, and a conductive film 14 is applied as shown in FIG. 4 (g) and dried. Then caps 18, 19
And removed from the jig 17 to form the electric field shield member 11 in the state shown in FIG. Then, the inner and outer surfaces are reversed to manufacture the electric field shield member 11 shown in FIG.
【００２２】上記工程中に用いるキャップ１８には、図
４（ニ）に示すような切欠部１８ａが設けられており、
このため導電膜１４には図４（ト）に示すような延在部
１４ａが形成されることになり、、陰極線管に装着した
とき、この延在部１４ａの部分が保護膜６と接触するよ
うに構成されている。The cap 18 used in the above process is provided with a notch 18a as shown in FIG. 4D.
Therefore, the conductive film 14 is formed with an extended portion 14a as shown in FIG. 4 (g), and when the extended portion 14a is attached to the cathode ray tube, the extended portion 14a comes into contact with the protective film 6. Is configured.
【００２３】実施例４．実施例３では、図２に示した単
層構造の導電膜１４を形成する場合の製造工程を説明し
たが、図３に示した二層構造の導電膜１４を形成する場
合には、まず接着材を塗布して半乾燥させたのち導電材
を多く含んだ溶液または接着材との混合液を塗装して乾
燥させる工程を加える。Example 4. In the third embodiment, the manufacturing process in the case of forming the single-layer conductive film 14 shown in FIG. 2 has been described, but in the case of forming the double-layer conductive film 14 shown in FIG. After the material is applied and semi-dried, a step of adding a solution containing a large amount of a conductive material or a mixed solution with an adhesive and drying it is added.
【００２４】[0024]
【発明の効果】この発明による陰極線管装置は、絶縁シ
ートの内面に接着材でもって導電材が塗着されている導
電膜を有する電界シールド部材を備えており、電界シー
ルド部材の導電材は絶縁シートに強固に接着しており、
使用時に導電材が脱落して絶縁シートの他の部分に付着
することが少なく、絶縁シートの絶縁性を損う恐れが少
なくなる。The cathode ray tube device according to the present invention comprises the electric field shield member having the conductive film coated with the conductive material on the inner surface of the insulating sheet with the adhesive material, and the conductive material of the electric field shield member is insulated. It adheres firmly to the sheet,
It is less likely that the conductive material will fall off during use and adhere to other parts of the insulating sheet, and the risk of impairing the insulating property of the insulating sheet is reduced.
【００２５】また、この発明による電界シールド部材に
よれば、内面に形成した導電膜１４が陰極線管のコーン
部の外面に形成されている導電膜６に重なって電気的に
接続されるので、導電膜１４を別途接地する必要がない
電界シールド効果が得られる。Further, according to the electric field shield member of the present invention, since the conductive film 14 formed on the inner surface overlaps with the conductive film 6 formed on the outer surface of the cone portion of the cathode ray tube to be electrically connected, the conductive property is improved. It is possible to obtain an electric field shielding effect without having to separately ground the film 14.
【００２６】また、この発明に係る製造方法によれば、
絶縁シートの内面に形成する保護膜の位置および形状を
正確かつ容易に製作できる。According to the manufacturing method of the present invention,
The position and shape of the protective film formed on the inner surface of the insulating sheet can be manufactured accurately and easily.
【図１】この発明の実施例１を示す断面図である。FIG. 1 is a sectional view showing a first embodiment of the present invention.
【図２】図１中の一点鎖線の円内の部分の拡大断面図で
ある。FIG. 2 is an enlarged cross-sectional view of a portion within a one-dot chain line circle in FIG.
【図３】この発明の実施例２の拡大断面図である。FIG. 3 is an enlarged sectional view of Embodiment 2 of the present invention.
【図４】この発明の実施例３の製造工程図である。FIG. 4 is a manufacturing process diagram of Embodiment 3 of the present invention.
【図５】電界シールド手段を備えていない従来の陰極線
管の側面図である。FIG. 5 is a side view of a conventional cathode ray tube that does not include electric field shield means.
【図６】偏向ヨークの斜視図である。FIG. 6 is a perspective view of a deflection yoke.
【図７】電界シールド手段を備えた第１の従来例の陰極
線管装置の側面図である。FIG. 7 is a side view of a first conventional cathode ray tube device equipped with an electric field shield means.
【図８】第１の従来例で用いる絶縁シートの斜視図であ
る。FIG. 8 is a perspective view of an insulating sheet used in a first conventional example.
【図９】電界シールド手段を備えた第２の従来例の陰極
線管の側面図である。FIG. 9 is a side view of a second conventional cathode ray tube having an electric field shield means.
【図１０】第２の従来例で用いる電界シールド部材の斜
視図である。FIG. 10 is a perspective view of an electric field shield member used in a second conventional example.
１ａ ネック部 １ｂ コーン部 ６ 導電膜 ７ａ 水平偏向ヨーク ９ 絶縁シート １１ 電界シールド部材 １４ 導電膜 １５ 接着材層 １６ 導電材層 １７ 治具 １８ キャップ １９ キャップ 1a Neck part 1b Cone part 6 Conductive film 7a Horizontal deflection yoke 9 Insulating sheet 11 Electric field shield member 14 Conductive film 15 Adhesive material layer 16 Conductive material layer 17 Jig 18 Cap 19 Cap
Claims (3)
体部とからなるファンネル部およびパネル部を有するガ
ラスバルブ、このガラスバルブのネック部からコーン部
にかけての偏向ヨークが嵌装される部分の壁面に沿う形
状に形成された絶縁シートと、この絶縁シートの内面に
接着材でもって塗着された導電膜とを有する電界シール
ド部材を備えた陰極線管装置。1. A glass bulb having a funnel portion including a neck portion, a cone portion, and a funnel body portion and a panel portion, and a wall surface of a portion where a deflection yoke is fitted from the neck portion to the cone portion of the glass bulb. A cathode ray tube device comprising an electric field shield member having an insulating sheet formed in a shape conforming to the above, and a conductive film coated on the inner surface of the insulating sheet with an adhesive.
されている導電膜と電界シールド部材の内面に形成され
ている導電膜の少なくとも一部分が重なって電気的に導
通した状態となるよう配置したことを特徴とする請求項
１の陰極線管装置。2. A conductive film coated on the outer surface of the funnel portion of the cathode ray tube and at least a part of the conductive film formed on the inner surface of the electric field shield member are arranged so as to be electrically connected to each other. The cathode ray tube device according to claim 1, wherein
ートの表面に接着材を含む導電材を塗布するか、または
接着材を塗布したのち導電材を塗布して乾燥させ、この
絶縁シートの内外面を反転させて導電膜が内面側となる
ようにした陰極線管装置の電界シールド部材の製造方
法。3. An insulating sheet is attached to a jig, and a conductive material containing an adhesive is applied to the surface of the insulating sheet, or an adhesive is applied and then the conductive material is applied and dried. A method of manufacturing an electric field shield member of a cathode ray tube device, wherein the inner and outer surfaces of the conductive film are inverted so that the conductive film is on the inner surface side.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP15054592A JP2693896B2 (en) | 1992-06-10 | 1992-06-10 | Method of manufacturing cathode ray tube device and electric field shield member thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP15054592A JP2693896B2 (en) | 1992-06-10 | 1992-06-10 | Method of manufacturing cathode ray tube device and electric field shield member thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH05343006A true JPH05343006A (en) | 1993-12-24 |
| JP2693896B2 JP2693896B2 (en) | 1997-12-24 |
Family
ID=15499220
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP15054592A Expired - Fee Related JP2693896B2 (en) | 1992-06-10 | 1992-06-10 | Method of manufacturing cathode ray tube device and electric field shield member thereof |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2693896B2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR19980021450A (en) * | 1996-09-17 | 1998-06-25 | 엄길용 | Cathode deflector of cathode ray tube |
-
1992
- 1992-06-10 JP JP15054592A patent/JP2693896B2/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR19980021450A (en) * | 1996-09-17 | 1998-06-25 | 엄길용 | Cathode deflector of cathode ray tube |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2693896B2 (en) | 1997-12-24 |
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