JPS607341B2 - color picture tube - Google Patents
color picture tubeInfo
- Publication number
- JPS607341B2 JPS607341B2 JP8740577A JP8740577A JPS607341B2 JP S607341 B2 JPS607341 B2 JP S607341B2 JP 8740577 A JP8740577 A JP 8740577A JP 8740577 A JP8740577 A JP 8740577A JP S607341 B2 JPS607341 B2 JP S607341B2
- Authority
- JP
- Japan
- Prior art keywords
- shadow mask
- color picture
- picture tube
- funnel
- conductive
- 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
Links
Landscapes
- Electrodes For Cathode-Ray Tubes (AREA)
Description
【発明の詳細な説明】
本発明はカラー受像管に関し、特にシャドウマスクの形
状により発生する制限にかかわり、カラー受像管のファ
ンネル部内面の導電被膜と前記シャドウマスクとを電気
的導通をコンタクトスプリングを用いないで可能ならし
めるものである。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a color picture tube, and particularly relates to limitations caused by the shape of a shadow mask, and uses a contact spring to establish electrical continuity between the conductive coating on the inner surface of the funnel portion of the color picture tube and the shadow mask. This makes it possible without using it.
従来カラー受像管は、シャドウマスク及び溝光体裏面の
メタルバック層の電位を外部から制御する。このために
ファンネル部に金属片を埋め込み、さらにはファンネル
部内面に導電性膜を塗布し、この導電性膜と、シャドウ
マスクとの間をコンタクトスプリングによって接触させ
る方法が採られている。第１図はその一例を示したもの
で、フェースプレートーとファンネル２を非導電性フリ
ットガラス３により高温加熱して融着し、カラー受像管
の外囲器を形成している。シャドウマスク４はフレーム
５が溶接され、フエースプレートに保持されるべき構造
をしている。In conventional color picture tubes, the potentials of the shadow mask and the metal back layer on the back surface of the groove light body are externally controlled. For this purpose, a method has been adopted in which a metal piece is embedded in the funnel portion, a conductive film is further coated on the inner surface of the funnel portion, and the conductive film and the shadow mask are brought into contact with each other using a contact spring. FIG. 1 shows an example of this, in which a face plate and a funnel 2 are heated and fused together at a high temperature with a non-conductive frit glass 3 to form an envelope of a color picture tube. The shadow mask 4 has a frame 5 welded to it and has a structure to be held on a face plate.
このフレーム５にコンタクトスプリング６が溶接されフ
ァンネル３内面の導電膜すなわち黒鉛膜７にスプリング
の力により押しつけられ電気的導通を満たしている。か
ようにコンタクトスプリング６を用いて、電気的導通を
保つためには、シャドウマスク４のフレーム５の強度が
前記コンタクトスプリング６による応力に対し十分強固
であることが必要である。A contact spring 6 is welded to this frame 5 and is pressed by the force of the spring against a conductive film, that is, a graphite film 7 on the inner surface of the funnel 3, thereby achieving electrical continuity. In order to maintain electrical continuity using the contact springs 6 as described above, it is necessary that the frame 5 of the shadow mask 4 has sufficient strength against the stress caused by the contact springs 6.
そこで従来のカラー受像管では、フレーム材料としては
厚さ約２肋の鉄板を使用することにより、強度を保障し
、シャドウマスクの有効面にコンタクトスプリングによ
る応力が影響を及ぼさない様にしてある。タ ー方、カ
ラー受像管の製造において、使用材料の低減が叫ばれて
いる状況で、このフレームについても例外ではない。Therefore, in conventional color picture tubes, a steel plate with a thickness of about two ribs is used as the frame material to ensure strength and to prevent the stress caused by the contact spring from affecting the effective surface of the shadow mask. On the other hand, there is an increasing demand for reducing the amount of materials used in the production of color picture tubes, and this frame is no exception.
この２肌厚の鉄板フレームを除いた薄いシャドウマスク
板にコンタクトスプリングを直接溶接することは、コン
タクトスブリＯングの応力により、シャドウマスク板に
変形を生じ、そのため電子ビームとスクリーンを構成す
る後光体との対応関係に狂いが生じ、その悪結果として
池色打ちを生じ、画像の再生ができない。またコンタク
トスプリングによるファンネル内面のタ導電膜が剥離脱
落したりする。このように剥離脱落した黒鉛被膜片が電
極間の短絡やシャドウマスクのつまりなどの原因となる
などの欠点があった。本発明の目的は、上記種々の欠点
を無くし安価でしかも高品質のカラー受像管を容易に得
ることにある。Welding the contact spring directly to the thin shadow mask plate other than the two-thickness iron plate frame causes deformation of the shadow mask plate due to the stress of the contact subring. The correspondence relationship with the light object is disrupted, and as a result, a dull color appears, making it impossible to reproduce the image. Further, the conductive film on the inner surface of the funnel due to the contact spring may peel off or fall off. There were drawbacks such as the graphite coating pieces peeled off in this way causing short circuits between electrodes and clogging of the shadow mask. An object of the present invention is to eliminate the various drawbacks mentioned above and to easily obtain a color picture tube of high quality at low cost.
以下本発明の実施例について詳細に説明する。Examples of the present invention will be described in detail below.
第２図はその一実施例を示す。従来からフェースプレー
ト１とファンネル２を融着する工程においては非導電性
フリツトガラス３を用いている。本発明は前記工程にお
いて、フェースプレート‘とシャドウマスク４の端部に
あらかじめ塗られている導電性フリットガラス８がフェ
ースプレート１とファンネル２を融着・加熱されると同
時に加熱され流下して、ファンネル２の内面に塗布され
ている黒鉛膜７に達し固着される。この時の加熱温度は
約４３０つ０、加熱時間は６粉ご程度保持して行なう。
この導電性フリットガラス８Ｇま、シルバーペイント３
０％を含むフリットガラスと、ニトロセルローズを含む
酢酸メチル溶液の混合物である。本工程でフェースプレ
ートーとファンネル２の内面に塗られてある黒鉛膜７と
が融着される。ここで導電性フリツトガラス８の一部は
表面張力により、フェースプレートー、シャドウマスク
４の端間にもとどまり、前記フェースプレートー、シャ
ドウマスク４、ファンネル２の内面に塗られてある黒鉛
膜７の三者が本発明の目的に合致した電気的導通が行な
われる。この過程で同時にフェースプレートとファンネ
ルとが非導電性フリットガラスにより融着される。本実
施例では「フェースプレートが平板であるものについて
説明したがト曲面状のもの、およびスカート部のあるも
のであってもよいことは勿論である。FIG. 2 shows one embodiment. Conventionally, a non-conductive frit glass 3 has been used in the process of fusing the face plate 1 and the funnel 2 together. In the process of the present invention, the conductive frit glass 8, which has been applied in advance to the ends of the face plate' and the shadow mask 4, is heated and heated while the face plate 1 and the funnel 2 are fused and heated, and the conductive frit glass 8 is heated and flows down. The graphite film 7 coated on the inner surface of the funnel 2 is reached and fixed. The heating temperature at this time is about 430 degrees, and the heating time is maintained at about 6 degrees.
This conductive frit glass 8G, silver paint 3
It is a mixture of frit glass containing 0% and methyl acetate solution containing nitrocellulose. In this step, the face plate and the graphite film 7 coated on the inner surface of the funnel 2 are fused together. Here, a part of the conductive frit glass 8 remains between the edges of the face plate and the shadow mask 4 due to surface tension, and the graphite film 7 coated on the inner surfaces of the face plate, the shadow mask 4, and the funnel 2. An electrical connection is established between the three parties that meets the objectives of the present invention. During this process, the face plate and funnel are simultaneously fused together using non-conductive frit glass. In this embodiment, the face plate is a flat plate, but it goes without saying that it may be curved or have a skirt portion.
またフェースプレート１の内面にはシャドウマスク４の
外に蟹光体９およびメタルバック１０が塗布されている
。このメタルバックの形状を適当に選ぶことにより、メ
タルバックとシャドウマスクとの間の導通をも同時にで
きる。本実施例では導電性フリツトガラスとシャドウマ
スクの接触位置を１個所としたが数個所であってもよい
。Further, on the inner surface of the face plate 1, in addition to the shadow mask 4, a crab light body 9 and a metal back 10 are coated. By appropriately selecting the shape of this metal back, conduction can be established between the metal back and the shadow mask at the same time. In this embodiment, the conductive frit glass and the shadow mask are contacted at one location, but may be at several locations.
また導電性フリットガラスとマスクの接触には、シャド
ウマスクに導電性の金属片を溶接し、この端を用いるこ
とも可能である。以上実施例により説明したように、本
発明により、コンタクトスプリングを用いることなく、
フレ−ムのないシャドウマスクを変形させることなく極
めて簡単にシャドウマスクとファンネル都内装黒鉛膜と
の電気的導通が可能となりその効果は大である。Further, it is also possible to weld a conductive metal piece to the shadow mask and use the end of the conductive metal piece to make contact between the conductive frit glass and the mask. As explained above using the embodiments, according to the present invention, without using a contact spring,
Electrical conduction between the shadow mask and the graphite film inside the funnel can be made extremely easily without deforming the frameless shadow mask, and the effect is great.
第１図は、従来のシャドウマスク型カラー受像管の要部
断面図「第２図は本発明の要部断面図である。
１……フェースプレート、２……フアンネル、３…・・
・非導電性フリットガラス、４・…Ｗシャドウマスク、
６……コンタクトスプリング、７……里鉛膜「 ８…・
・・導電性フリットガラス。
第１図弟２図FIG. 1 is a sectional view of the main parts of a conventional shadow mask type color picture tube. FIG. 2 is a sectional view of the main parts of the present invention. 1...Face plate, 2...Funnel, 3...
・Non-conductive frit glass, 4...W shadow mask,
6...Contact spring, 7...Satolead film 8...
...Conductive frit glass. Figure 1 Younger brother Figure 2
Claims (1)
衝突点を一致させる有孔シヤドウマスク型カラー受像管
において、前記シヤドウマスクとカラー受像管内面にあ
らかじめ塗布した導電膜とを電気的導通を導電性フリツ
トガラスにより保持することを特徴とするカラー受像管
。 ２ 特許請求の範囲第１項記載のカラー受像管において
、フエースプレートとフアンネルとシヤドウマスクを同
時に融着保持することを特徴とするカラー受像管。[Scope of Claims] 1. In a perforated shadow mask type color picture tube in which the phosphor elements constituting the screen and the collision point of the electron beam coincide, the shadow mask and a conductive film previously applied to the inner surface of the color picture tube are electrically connected. A color picture tube characterized in that electrical continuity is maintained by conductive fritted glass. 2. A color picture tube according to claim 1, characterized in that a face plate, a funnel, and a shadow mask are simultaneously fused and held.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8740577A JPS607341B2 (en) | 1977-07-22 | 1977-07-22 | color picture tube |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8740577A JPS607341B2 (en) | 1977-07-22 | 1977-07-22 | color picture tube |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5422758A JPS5422758A (en) | 1979-02-20 |
| JPS607341B2 true JPS607341B2 (en) | 1985-02-23 |
Family
ID=13913956
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP8740577A Expired JPS607341B2 (en) | 1977-07-22 | 1977-07-22 | color picture tube |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS607341B2 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0165956U (en) * | 1987-10-22 | 1989-04-27 | ||
| KR20240021313A (en) | 2021-11-25 | 2024-02-16 | 도시바 테크 가부시키가이샤 | Product registration device, product registration method and program recording medium |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS58188006A (en) * | 1982-04-28 | 1983-11-02 | 昭和電線電纜株式会社 | Method of producing superconductive wire |
| US4730143A (en) * | 1986-02-21 | 1988-03-08 | Zenith Electronics Corporation | Improved color cathode ray tube having a faceplate-mounted support structure with a welded-on high-tension foil shadow mask |
| USRE33698E (en) * | 1986-02-21 | 1991-09-24 | Zenith Electronics Corporation | Color cathode ray tube having a faceplate-mounted support structure with a welded-on high-tension foil shadow mask |
| US5501746A (en) * | 1993-12-16 | 1996-03-26 | Mitsubishi Denki Kabushiki Kaisha | Process for preparing superconducting wire |
-
1977
- 1977-07-22 JP JP8740577A patent/JPS607341B2/en not_active Expired
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0165956U (en) * | 1987-10-22 | 1989-04-27 | ||
| KR20240021313A (en) | 2021-11-25 | 2024-02-16 | 도시바 테크 가부시키가이샤 | Product registration device, product registration method and program recording medium |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5422758A (en) | 1979-02-20 |
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