JP2963702B2 - Cathode ray tube envelope and cathode ray tube - Google Patents

Cathode ray tube envelope and cathode ray tube

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Publication number
JP2963702B2
JP2963702B2 JP25210789A JP25210789A JP2963702B2 JP 2963702 B2 JP2963702 B2 JP 2963702B2 JP 25210789 A JP25210789 A JP 25210789A JP 25210789 A JP25210789 A JP 25210789A JP 2963702 B2 JP2963702 B2 JP 2963702B2
Authority
JP
Japan
Prior art keywords
intermediate member
glass
funnel
face plate
cathode ray
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
Application number
JP25210789A
Other languages
Japanese (ja)
Other versions
JPH02223139A (en
Inventor
滋男 竹中
孝司 西村
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Toshiba Corp
Original Assignee
Toshiba Corp
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Toshiba Corp filed Critical Toshiba Corp
Priority to JP25210789A priority Critical patent/JP2963702B2/en
Publication of JPH02223139A publication Critical patent/JPH02223139A/en
Application granted granted Critical
Publication of JP2963702B2 publication Critical patent/JP2963702B2/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Description

【発明の詳細な説明】 〔発明の目的〕 (産業上の利用分野) 本発明は陰極線管外囲器に関し、特に複数のネックを
有する陰極線管の真空外囲器の構造及びこの構造を適用
したカラー受像管に関するものである。
The present invention relates to a cathode ray tube envelope, and more particularly to the structure of a cathode ray tube vacuum envelope having a plurality of necks and to which the structure is applied. The present invention relates to a color picture tube.

(従来の技術) 複数のネックを有するカラー受像管の真空外囲器は例
えば第9図に示す様に、内面にスクリーン面(103)を
もち概略矩形状をなすフェースプレート(104)と、こ
のフェースプレート(104)の周縁部から管軸とほぼ平
行に延びるスカート(105)を有するパネル(106)とこ
のスカート(105)に連結され、ファンネル(107)を介
して連結された複数のネック(108)から真空外囲器(1
02)が構成されている(特開昭61−256551号公報参
照)。複数のネック(108)には電子銃(109)が内装さ
れており、この電子銃(109)から発射された3本の電
子ビーム(110)(第9図では3本の電子ビームを1グ
ループとして表わしている。)は前記ネック(108)か
らファンネル(107)にかけこの外壁に装着された複数
の偏向ヨーク(111)によりスクリーン面(103)上の所
定領域を偏向走査される。
(Prior Art) As shown in FIG. 9, for example, as shown in FIG. 9, a vacuum envelope of a color picture tube having a plurality of necks has a face plate (104) having a screen surface (103) and a substantially rectangular shape. A panel (106) having a skirt (105) extending substantially parallel to the tube axis from the periphery of the face plate (104), and a plurality of necks (107) connected to the skirt (105) and connected via a funnel (107). 108) from the vacuum envelope (1
02) (see JP-A-61-256551). An electron gun (109) is provided in the plurality of necks (108), and three electron beams (110) emitted from the electron gun (109) (in FIG. 9, three electron beams are grouped together). A predetermined area on the screen surface (103) is deflected and scanned by a plurality of deflection yokes (111) mounted on the outer wall from the neck (108) to the funnel (107).

パネル(106)にはスクリーン面(103)から所定間隔
をもって対設され、多数の開孔を有するシャドウマスク
(112)とこのシャドウマスク(112)を支持するフレー
ム(113)が配置されており、このシャドウマスク(11
2)により3本の電子ビーム(110)は色選択され、所定
の蛍光体を衝撃発光させる。このようにスクリーン面
(103)を複数の領域に分割し、該領域に対向して配置
された複数の電子銃(109)から発射された電子ビーム
によって画像を分割表示するカラー受像管の真空外囲器
は通常のカラー受像管の真空外囲器に比べて極めて複雑
な形状であり、ガラスの成形加工が非常に困難で量産に
は不向きである。
On the panel (106), a shadow mask (112) having a large number of apertures, and a frame (113) supporting the shadow mask (112) are arranged opposite to the screen surface (103) at a predetermined interval. This shadow mask (11
The color of the three electron beams (110) is selected according to 2), and a predetermined phosphor is caused to emit light by impact. In this manner, the screen surface (103) is divided into a plurality of regions, and the outside of the vacuum of a color picture tube for dividing and displaying an image by electron beams emitted from a plurality of electron guns (109) arranged opposite to the regions. The envelope has an extremely complicated shape as compared with the vacuum envelope of an ordinary color picture tube, and it is very difficult to form glass and is not suitable for mass production.

更に真空外囲器の大形化に伴い大気圧に対して十分な
強度を保つ為ファンネル(107)のガラス肉厚をパネル
(106)のガラス肉厚と同程度に厚くする必要がある。
一方、ネック(108)のガラス肉厚は通常1mm程度と極め
て薄く、ファンネル(107)からネック(108)にかけこ
の熱容量の分布は急激に変化し、カラー受像管の製造工
程中に複数回通る熱工程での熱歪が増大し破壊しやすく
なり量産に不向きになる。
Further, as the size of the vacuum envelope increases, the glass thickness of the funnel (107) needs to be as thick as the glass thickness of the panel (106) in order to maintain sufficient strength against atmospheric pressure.
On the other hand, the glass thickness of the neck (108) is extremely thin, usually about 1 mm, and the distribution of this heat capacity changes rapidly from the funnel (107) to the neck (108). The thermal strain in the process increases, and it is apt to break, making it unsuitable for mass production.

(発明が解決しようとする課題) このようにファンネル(107)を通常の陰極線管のよ
うにガラスのみで構成すると、ファンネルの成形加工が
困難となり量産に不向きとなる。更に陰極線管の大形化
に伴い大気圧に対する強度を増す為にファンネルのガラ
ス肉厚は厚肉化し、肉厚の分分も急激に変化し、製造工
程中での熱歪が増大し量産に不向きとなる問題がある。
(Problem to be Solved by the Invention) When the funnel (107) is made of only glass like a normal cathode ray tube, it is difficult to form the funnel and is not suitable for mass production. Furthermore, as the size of the cathode ray tube increases, the glass thickness of the funnel increases in order to increase the strength against atmospheric pressure, and the thickness of the funnel also changes drastically. There is a problem that is not suitable.

本発明は上述した問題に鑑み複数のネックをもつ受像
管の製作を容易にした構造を提供するものである。
The present invention has been made in view of the above problems, and provides a structure that facilitates the manufacture of a picture tube having a plurality of necks.

〔発明の構成〕[Configuration of the invention]

(課題を解決するための手段) 本発明は平面形状が略矩形状を成すフェースプレート
と前記フェースプレートの周縁部から管軸とほぼ平行に
延在するスカートからなるガラスパネルと、複数のガラ
スネックと、前記複数のガラスネックから延在する漏斗
状の複数のファンネルと、前記ガラスパネルと前記複数
のファンネルとを相互に連結し前記フェースプレートと
略平行な主面を有する金属連結部材と、前記複数のファ
ンネルと前記金属連結部材とを連結する第1の中間部材
と、前記ガラスパネルと前記金属連結部材とを連結する
第2の中間部材とを備え、 少なくとも前記第1の中間部材または前記第2の中間
部材には前記金属連結部材と前記ファンネルまたは前記
ガラスパネルとの熱膨張量の差分を吸収する差分吸収手
段を設けることにより、薄型で複雑な形状の外囲器を容
易に形成できると共に軽量化も実現することができる。
(Means for Solving the Problems) The present invention provides a glass panel comprising a face plate having a substantially rectangular planar shape, a skirt extending from a peripheral portion of the face plate substantially parallel to a tube axis, and a plurality of glass necks. A funnel-shaped funnel extending from the plurality of glass necks, a metal connection member interconnecting the glass panel and the plurality of funnels, and having a main surface substantially parallel to the face plate; A first intermediate member that connects the plurality of funnels and the metal connection member; and a second intermediate member that connects the glass panel and the metal connection member, wherein at least the first intermediate member or the first The second intermediate member is provided with a difference absorbing means for absorbing a difference in the amount of thermal expansion between the metal connecting member and the funnel or the glass panel. Ri can also be realized weight reduction it is possible easily formed envelope complex shape thin.

また、平面形状が略矩形状を成すフェースプレートと
前記フェースプレートの周縁部から管軸とほぼ平行に延
在するスカートからなるガラスパネルと、前記ガラスパ
ネルの内面に形成された蛍光スクリーンと、前記蛍光ス
クリーンに電子ビームを射突させ前記蛍光スクリーンを
発光させる電子源と、複数のガラスネックと、前記複数
のガラスネックから延在する漏斗状の複数のファンネル
と、前記ガラスパネルと前記複数のファンネルとを相互
に連結し前記フェースプレートと略平行な主面を有する
金属連結部材と、前記複数のファンネルと前記金属連結
部材とを連結する第1の中間部材と、前記ガラスパネル
と前記金属連結部材とを連結する第2の中間部材とを備
え、少なくとも前記第1の中間部材または前記第2の中
間部材には前記金属連結部材と前記ファンネルまたは前
記ガラスパネルとの差分を吸収する差分吸収手段を設け
ることにより、防爆特性が優れ、薄型、軽量化された陰
極線管を得ることができる。
A glass plate comprising a face plate having a substantially rectangular planar shape and a skirt extending substantially parallel to a tube axis from a peripheral portion of the face plate; a fluorescent screen formed on an inner surface of the glass panel; An electron source for projecting an electron beam on the phosphor screen to cause the phosphor screen to emit light; a plurality of glass necks; a plurality of funnels extending from the plurality of glass necks; the glass panel and the plurality of funnels , A metal connecting member having a main surface substantially parallel to the face plate, a first intermediate member connecting the plurality of funnels and the metal connecting member, the glass panel and the metal connecting member And a second intermediate member for connecting the metal member to at least the first intermediate member or the second intermediate member. By providing the differential absorption means for absorbing the difference between the binding member and the funnel or the glass panel, anti proof characteristics are excellent, it can be obtained thin, the lightened cathode ray tube.

(作 用) 従来、陰極線管外囲器において複雑な形状を成してい
たファンネルの一部に本発明の構造の金属を用いること
でファンネルの形状を簡単化でき、成形性が大幅に向上
し、量産しやすい構造となる。またこの時金属部材とフ
ァンネルの間、又はガラスパネルと金属部材の間には中
間部材を配置しているため安価で複雑な形状の外囲器を
得ることが可能となる。
(Operation) By using the metal of the structure of the present invention for a part of the funnel, which has conventionally formed a complicated shape in a cathode ray tube envelope, the shape of the funnel can be simplified, and the formability is greatly improved. , And the structure is easy to mass-produce. Further, at this time, since the intermediate member is arranged between the metal member and the funnel or between the glass panel and the metal member, it is possible to obtain an inexpensive and complicated-shaped envelope.

中間部材に封着合金、金属部材に軟鋼材を用いること
により外囲器をガラス−封着合金−軟鋼材−封着合金−
ガラスの順で接合させることができ、高価な封着合金の
使用を最小限におさえることができる。
By using a sealing alloy for the intermediate member and a mild steel material for the metal member, the envelope is made of glass-sealing alloy-mild steel material-sealing alloy-
Glass can be joined in order and the use of expensive sealing alloys can be minimized.

この時、少なくとも中間部材に、金属部材とガラスの
熱膨張量の差分を吸収する差分吸収手段を設けることに
より、外囲器が高温熱工程を通過し、金属部材とガラス
との熱膨張量に大きな差が生じても、外囲器を破壊する
ことを防止できる。
At this time, at least in the intermediate member, by providing a difference absorbing means for absorbing a difference in the amount of thermal expansion between the metal member and the glass, the envelope passes through the high-temperature heating step, and the amount of thermal expansion between the metal member and the glass is reduced. Even if a large difference occurs, it is possible to prevent the envelope from being destroyed.

(実施例) 以下、本発明の一実施例につき図面を参照して説明す
る。
Hereinafter, an embodiment of the present invention will be described with reference to the drawings.

第1図は本発明の一実施例を示す陰極線管外囲器の概
略斜視図である。第1図のA−A断面を第2図に示し以
下、第2図にて説明する。
FIG. 1 is a schematic perspective view of a cathode ray tube envelope showing one embodiment of the present invention. FIG. 2 shows a cross section taken along the line AA of FIG. 1 and will be described below with reference to FIG.

第2図は本発明の陰極線管外囲器の概略断面図を示す
ものであり、第3図は第2図の一部拡大図である。
FIG. 2 is a schematic sectional view of a cathode ray tube envelope of the present invention, and FIG. 3 is a partially enlarged view of FIG.

第2図において、陰極線管外囲器(1)は概略矩形を
成すフェースプレート(2)と前記フェースプレート
(2)の周縁部から管軸とほぼ平行に延びるスカート
(3)から成るパネル(4)を形成し、このパネル
(4)が第2の中間部材A(5)を介して連結し、フェ
ースプレート(2)とほぼ平行な主面をもつ金属連結部
材(以下リアプレートと称す)(6)とこのリアプレー
ト(6)が第1の中間部材B(7)を介して連結する複
数のファンネル(8)とこのファンネル(8)から延び
るネック(9)とこのネック(9)の下端に連結したス
テム(10)と、前記リアプレート(6)に連結し、該リ
アプレート(6)の主面と略垂直な主面を有する複数の
補強板(11)とから成る。
In FIG. 2, a cathode ray tube envelope (1) comprises a panel (4) comprising a substantially rectangular face plate (2) and a skirt (3) extending from a peripheral portion of the face plate (2) substantially parallel to the tube axis. This panel (4) is connected via a second intermediate member A (5), and a metal connecting member having a main surface substantially parallel to the face plate (2) (hereinafter referred to as a rear plate) ( 6), a plurality of funnels (8) connected to the rear plate (6) via the first intermediate member B (7), a neck (9) extending from the funnel (8), and a lower end of the neck (9). And a plurality of reinforcing plates (11) connected to the rear plate (6) and having a main surface substantially perpendicular to the main surface of the rear plate (6).

パネル(4)は通常の陰極線管に用いられているもの
と同様に平面形状が概略矩形状を成すフェースプレート
(2)をもちこのフェースプレート(2)の周縁部には
スカート(3)を有しており該フェースプレートの内面
は609.6mm×457.2mmの大きさの蛍光面を形成できる大き
さであり、スカート(3)の高さは115mmである。第2
の中間部材A(5)はその周縁部形状がスカート(3)
の外周形状と略同一で幅30mmのリング状の金属薄板で内
周側に半径が約6mmの差分吸収手段(以下、突出部と称
す。)(13)が全周に施してあり、材料は板厚が0.2mm
の50%ニッケル合金材(封着合金)を用いている。リア
プレート(6)は周縁部形状がスカート(3)及び第2
の中間部材A(5)の外周形状と略同一で、その主面内
に第1の中間部材B(7)が取付けられる複数の開口を
有しており板厚が2mmの軟鋼材が用いられている。リア
プレート(6)の開口形状、第1の中間部材B(7)の
内周形状及びファンネル(8)の内周形状は略同一であ
る。第1の中間部材B(7)に板厚が0.2mmの50%ニッ
ケル合金材(封着合金)で幅が5mmのリング状薄板であ
る。ファンネル(8)は(広)開口側の対角方向の長さ
が約50mmの漏斗状を成し、外形寸法が22.5mm(φ)のネ
ックに連結されており、両者共軟質ガラス材で形成され
ている。
The panel (4) has a face plate (2) having a substantially rectangular planar shape similar to that used in a normal cathode ray tube, and has a skirt (3) on the periphery of the face plate (2). The inner surface of the face plate is large enough to form a fluorescent screen of 609.6 mm × 457.2 mm, and the height of the skirt (3) is 115 mm. Second
The intermediate member A (5) has a skirt (3)
A ring-shaped thin metal plate having a width of 30 mm, which is substantially the same as the outer peripheral shape of the above, is provided with differential absorbing means (hereinafter referred to as a protruding portion) (13) having a radius of about 6 mm on the inner peripheral side on the entire periphery. 0.2mm thickness
50% nickel alloy material (sealing alloy) is used. The rear plate (6) has a skirt (3) and a second peripheral portion.
The intermediate member A (5) is made of a mild steel material having substantially the same outer peripheral shape and having a plurality of openings in its main surface to which the first intermediate member B (7) is attached, and having a thickness of 2 mm. ing. The opening shape of the rear plate (6), the inner peripheral shape of the first intermediate member B (7), and the inner peripheral shape of the funnel (8) are substantially the same. The first intermediate member B (7) is a ring-shaped thin plate having a thickness of 0.2 mm and a width of 5 mm made of a 50% nickel alloy material (sealing alloy). The funnel (8) has a funnel shape with a diagonal length on the (wide) opening side of about 50 mm, and is connected to a neck with an outer dimension of 22.5 mm (φ). Both are made of soft glass material Have been.

リアプレート(6)には垂直に折り曲げ加工された複
数の金属補強板(11)が連結されており板厚が2.0mmの
軟鋼材を用いており、高さは40mmである。
The rear plate (6) is connected to a plurality of vertically bent metal reinforcing plates (11), using a mild steel material having a plate thickness of 2.0 mm and a height of 40 mm.

次に各部材の接合方法について説明する。 Next, a method of joining the members will be described.

本発明での接合方法は2種類でガラス−金属はフリッ
トシール、金属−金属はシーム溶接を用いている。ガラ
ス−金属の接合はスカート(3)のシール面での第2の
中間部材A(5)との接合と、ファンネル(8)のシー
ル面での第1の中間部材B(7)との接合がある。この
部分での接合はフリットガラス(12)によるもので約45
0℃、1時間の焼成で接合が完了する。この部分での熱
膨張係数の関係は第2の中間部材A(5)、第1の中間
部材B(7)が99.0[10-7/℃]で、パネル(4)、フ
ァンネル(8)が100.0[10-7/℃]であり、接合後の残
留歪は無視できる程度である。
In the present invention, there are two types of joining methods, a frit seal is used for glass-metal, and a seam welding is used for metal-metal. The glass-metal joining is performed by joining the second intermediate member A (5) at the sealing surface of the skirt (3) and joining the first intermediate member B (7) at the sealing surface of the funnel (8). There is. The joint at this part is made of frit glass (12) and is approximately 45
The bonding is completed by firing at 0 ° C. for 1 hour. The relationship between the coefficients of thermal expansion in this part is 99.0 [10 -7 / ° C] for the second intermediate member A (5) and the first intermediate member B (7), and for the panel (4) and the funnel (8). 100.0 [10 −7 / ° C.], and the residual strain after joining is negligible.

また、第2の中間部材A(5)、第1の中間部材B
(7)はフリットガラス(12)との接合強度を向上させ
る為に酸化層が設けられている。金属−金属の接合はリ
アプレート(6)に第2の中間部材A(5)と第1の中
間部材B(7)を取付ける時行なう。この接合には抵抗
シーム溶接を用いて、フリットガラス(12)による接合
箇所からなるべく離れた位置に溶接している。溶接位置
をフリットガラスでの接合箇所から離しているのは、溶
接時に発生する熱変形によりフリットガラスの接合面が
はがされるのを防ぐ為である。
Also, the second intermediate member A (5), the first intermediate member B
In (7), an oxide layer is provided to improve the bonding strength with the frit glass (12). The metal-metal bonding is performed when the second intermediate member A (5) and the first intermediate member B (7) are mounted on the rear plate (6). In this joining, resistance seam welding is used, and welding is performed at a position as far as possible from a joining portion of the frit glass (12). The reason why the welding position is separated from the frit glass joint is to prevent the joint surface of the frit glass from being peeled off due to thermal deformation generated during welding.

本実施例ではリアプレート(6)と中間部材A及びB
の接合に抵抗シーム溶接を用いたが、例えばプラズマ溶
接、レーザー溶接、超音波溶接等を用いても溶接可能で
ある。
In this embodiment, the rear plate (6) and the intermediate members A and B
Although the resistance seam welding is used for the joining, it is also possible to perform welding using, for example, plasma welding, laser welding, ultrasonic welding, or the like.

補強板(11)とリアプレート(6)との接合はスポッ
ト抵抗溶接を用いている。
The joint between the reinforcing plate (11) and the rear plate (6) uses spot resistance welding.

本実施例では補強板(11)(の断面)を“L"字に折り
曲げ抵抗溶接により固定接合しているが、アーク溶接、
プラズマ溶接などの場合は必ずしも折り曲げて固定する
必要はない。
In this embodiment, the reinforcing plate (11) (cross section) is bent into an “L” shape and fixedly joined by resistance welding.
In the case of plasma welding or the like, it is not always necessary to bend and fix.

また、補強板(11)の配置位置及び数は大気圧による
リアプレート(6)の変形量が大きい部分に必要数配置
するのが効果的である。
Further, it is effective to arrange the necessary number and positions of the reinforcing plates (11) in portions where the amount of deformation of the rear plate (6) due to atmospheric pressure is large.

第2図の実施例ではリアプレート(5)を薄板にし補
強板(11)を配置し、大気圧に対する強度を補強板(1
1)の効果で向上させ外囲器の軽量化を実現した場合で
ある。この補強板(11)はリアプレート(6)が十分厚
板の時は配設する必要はなく、例えば板厚が8mmの時は
大気圧による変形は極めて小さく、補強材なしで外囲器
を構成できる。
In the embodiment shown in FIG. 2, the rear plate (5) is made thin and a reinforcing plate (11) is arranged, and the strength with respect to the atmospheric pressure is reduced.
This is the case where the weight of the envelope is reduced by the effect of 1). This reinforcing plate (11) does not need to be provided when the rear plate (6) is sufficiently thick. For example, when the plate thickness is 8 mm, the deformation due to atmospheric pressure is extremely small. Can be configured.

次に中間部材(5),(7)の動作原理について説明
する。外囲器の熱膨張係数が各部材すべて同一値であ
り、各部材の熱容量が均一であれば、連結後の各部に歪
が残留することはなく、また自然破壊することもない。
Next, the operation principle of the intermediate members (5) and (7) will be described. If the coefficients of thermal expansion of the envelope are the same for all members and the heat capacities of the members are uniform, no distortion remains in each part after connection, and no spontaneous destruction occurs.

また、連結(接合)により歪に対するガラスの強度は
金属と比べて弱く、特に引張力に極めて弱い。一方、金
属の歪に対する強度はガラスより極めて強く、この歪に
より破壊することは殆んどない。連結によるガラスの破
壊はガラスと金属の接合(連結)面での熱膨張係数の違
いによるものと構造物各部での熱膨張(又は熱収縮)量
の差によるものに大別でき、前者の接合面(物)間での
熱膨張係数の差によるものは一般に構造物の大きさに無
関係である。一方後者の構造物各部での熱膨張(又は熱
収縮)量の差によるものは構造物の大きさ、形状構造物
全体で異った熱膨張材の占める割合等で決定され、一般
に大形の構造物程、この影響を受ける。
In addition, the strength of glass against strain due to connection (joining) is weaker than that of metal, and particularly extremely weak in tensile force. On the other hand, the strength of metal against strain is much stronger than that of glass, and the metal is hardly broken by this strain. The destruction of glass due to connection can be broadly divided into the difference in the coefficient of thermal expansion at the joint (connection) surface of glass and metal and the difference in the amount of thermal expansion (or heat shrinkage) at each part of the structure. The difference in the coefficient of thermal expansion between surfaces (objects) is generally independent of the size of the structure. On the other hand, the latter due to the difference in the amount of thermal expansion (or thermal shrinkage) in each part of the structure is determined by the size of the structure, the ratio of the different thermal expansion materials in the whole shaped structure, and the like. Structures are affected by this.

従って、大形の陰極線管外囲器では、この熱膨張の差
によるガラスの破壊を防ぐ為に熱膨張の差分を吸収する
手段が必要となる。
Therefore, in a large-sized cathode ray tube envelope, a means for absorbing the difference in thermal expansion is required in order to prevent the glass from being broken by the difference in thermal expansion.

第2の中間部材A(5)は上述した熱膨張量の差分に
よって生じた歪を吸収する機能を有するものである。
The second intermediate member A (5) has a function of absorbing the strain caused by the difference in the amount of thermal expansion described above.

第4図(a)及び(b)は第2の中間部材A(5)の
動作を説明する模式図である。
FIGS. 4A and 4B are schematic diagrams illustrating the operation of the second intermediate member A (5).

第2の中間部材A(5)は前述した熱膨張量の差分に
よって生じた歪を吸収するために副吸収部(14)及び主
吸収部(13)(ここでは突出部)を有している。主吸収
部(13)は断面が略半円状(突出部)であり、それ以外
の平坦な部分が副吸収部(14)である。主吸収部(13)
はリアプレート(6)とパネル(4)の熱膨張量の差分
を吸収するもので、その差分(量)は極めて大きく(数
百ミクロン)、歪を突出部形状そのものの変形で吸収す
る構造であり、副吸収部(14)はガラスとの封着性を保
つ意味からあまり変形しにくい構造となっている。ま
た、副吸収部(14)とパネル(4)、及び副吸収部(1
4)とリアプレート(6)での熱膨張量の差分は小さ
く、且つ中間部材(副吸収部(14))が薄板(板厚0.2m
m)であることにより、中間部材(副吸収部(14))で
はその板状部材の面内変形(弾性変形)でその歪を吸収
する構造になっている。
The second intermediate member A (5) has a sub-absorbing portion (14) and a main absorbing portion (13) (here, a protruding portion) for absorbing the strain caused by the difference in the amount of thermal expansion described above. . The cross section of the main absorbing portion (13) is substantially semicircular (projecting portion), and the other flat portion is the sub absorbing portion (14). Main absorption part (13)
Absorbs the difference in the amount of thermal expansion between the rear plate (6) and the panel (4). The difference (amount) is extremely large (several hundred microns), and the structure absorbs the distortion by deformation of the projection itself. In addition, the sub-absorber (14) has a structure that is not easily deformed in order to maintain the sealing property with glass. The sub-absorber (14), panel (4), and sub-absorber (1
The difference in the amount of thermal expansion between 4) and the rear plate (6) is small, and the intermediate member (sub-absorber (14)) is thin (plate thickness 0.2 m).
m), the intermediate member (the sub-absorber (14)) has a structure in which the distortion is absorbed by in-plane deformation (elastic deformation) of the plate-shaped member.

第2の中間部材A(5)とリアプレート(6)が予め
S点にて連結され、次にフリットガラスでパネル(4)
と第2の中間部材A(5)が接合される場合、接合時
(高温)には第4図(a)に示す様にフリットガラスは
溶融しており、この状態では第2の中間部材A(5)の
突出部(13)の変形はない。
The second intermediate member A (5) and the rear plate (6) are connected in advance at point S, and then the panel (4) is made of frit glass.
When the second intermediate member A (5) and the second intermediate member A (5) are joined together, the frit glass is molten at the time of joining (high temperature) as shown in FIG. 4 (a). There is no deformation of the projection (13) of (5).

フリットガラスによってパネル(4)と第2の中間部
材A(5)が接合され、構造物が常時になった時、リア
プレート(6)はパネル(4)より熱膨張係数が大きい
ので第4図(b)に示す様に内側(矢印の方向)へ熱収
縮する。
When the panel (4) and the second intermediate member A (5) are joined by the frit glass and the structure is in a normal state, the rear plate (6) has a larger coefficient of thermal expansion than the panel (4). As shown in (b), it shrinks inward (in the direction of the arrow).

この収縮に伴って第2の中間部材A(5)の突出部
(13)は変形しパネル(4)とリアプレート(6)の熱
膨張量の差分を吸収しパネル(4)がリアプレート
(6)の熱収縮で破壊されるのを防ぐことができる。
With this contraction, the projection (13) of the second intermediate member A (5) is deformed to absorb the difference in the amount of thermal expansion between the panel (4) and the rear plate (6), and the panel (4) is moved to the rear plate ( It can be prevented from being broken by the heat shrinkage of 6).

本実施例では熱膨張量の差分を吸収する突出部(13)
を第2の中間部材A(5)のみに設けており第1の中間
部材B(7)には突出部を有しないリング状薄板であ
る。これはファンネル(8)と第1の中間部材B(7)
の接合面が小さく、熱膨張量の差分も小さいので主吸収
部(突出部)なしでもガラス(ファンネル)が破壊する
程の歪が発生することはない為である。
In this embodiment, the protrusion (13) that absorbs the difference in the amount of thermal expansion
Are provided only on the second intermediate member A (5), and the first intermediate member B (7) is a ring-shaped thin plate having no protrusion. This is the funnel (8) and the first intermediate member B (7)
Is small and the difference in the amount of thermal expansion is small, so that even without the main absorbing portion (projecting portion), there is no occurrence of distortion enough to break the glass (funnel).

またファンネル(8)の接合面が大きくなった場合等
で何らかの熱膨張量の差分を吸収する手段が必要な時は
第1の中間部材B(7)に主吸収部(突出部(13))を
設けた場合も同様の効果が得られる。
If a means for absorbing any difference in the amount of thermal expansion is required, for example, when the joining surface of the funnel (8) becomes large, the first intermediate member B (7) has a main absorbing portion (projecting portion (13)). The same effect can be obtained also when を is provided.

また、本実施例の主吸収部(突出部(13))の形状は
半円形を成しているが、この形状は伸縮可能な形状であ
れば何れでも良く、例えば円形、三角形(断面形状)の
場合においても適用される。
Further, the shape of the main absorbing portion (projection (13)) of the present embodiment is semicircular, but this shape may be any shape as long as it can be expanded and contracted, for example, circular, triangular (cross-sectional shape). Also applies in the case of.

本実施例の中間部材は50%ニッケルの封着合金を用い
ているが52%ニッケル6%クロムの封着合金を用いた場
合でも適用される。
The intermediate member of this embodiment uses a sealing alloy of 50% nickel, but is applicable even when a sealing alloy of 52% nickel and 6% chromium is used.

本実施例の第2の中間部材A(5)はパネルとの接合
面から内側(管軸方向)方向へ向って設けており、突出
部(13)もパネルの内側に配置されているが(第3図参
照)、第5図に示す様に突出部(13)及びS点をパネル
の外側に設けた場合でも本発明の効果は得ることができ
る。
The second intermediate member A (5) of this embodiment is provided inward (in the direction of the tube axis) from the joint surface with the panel, and the protruding portion (13) is also arranged inside the panel. The effect of the present invention can be obtained even when the projection (13) and the point S are provided outside the panel as shown in FIG. 3 and FIG.

第6図は本発明の他の実施例を示す部分拡大図であ
る。第6図において、リアプレート(6)は外形がスカ
ート(3)の外周形状より5mm大きく主面内にファンネ
ル(6)の開口と同一形状の複数の開口を有しており、
周縁部(16)はリアプレート(6)の主面に対して垂直
方向(フェースプレート側)に15mm延びており、このリ
アプレート(5)の板厚は2mmである。
FIG. 6 is a partially enlarged view showing another embodiment of the present invention. In FIG. 6, the rear plate (6) has a plurality of openings whose outer shape is 5 mm larger than the outer peripheral shape of the skirt (3) and whose main surface has the same shape as the opening of the funnel (6).
The peripheral portion (16) extends 15 mm in a direction perpendicular to the main surface of the rear plate (6) (face plate side), and the thickness of the rear plate (5) is 2 mm.

また、この周縁部(16)とスカート(3)の間には例
えばシリコーン等の封止部材(15)が配置されている。
他は第1の実施例と同様である。
A sealing member (15) such as silicone is disposed between the peripheral portion (16) and the skirt (3).
Others are the same as the first embodiment.

このようにリアプレート(6)の周縁部(16)をフェ
ースプレート側に曲げることで大気圧に対する機械的強
度が大幅に向上し、特に大気圧又は熱変形によりスカー
ト(3)とリアプレート(6)の連結部分が破壊される
(剥される)のを防ぐ作用がある。
By bending the peripheral portion (16) of the rear plate (6) toward the face plate in this manner, the mechanical strength against atmospheric pressure is greatly improved. In particular, the skirt (3) and the rear plate (6) are subjected to atmospheric pressure or thermal deformation. ) Has the effect of preventing the connected portion from being destroyed (peeled).

更に周縁部(16)を封止部材(15)で封止すること
で、リアプレート(6)の機械的強度が更に向上すると
同時にリアプレートの酸化(錆)の進行によりスカート
(3)とリアプレート(6)が剥がされるのを防ぐ作用
がある。
Further, by sealing the peripheral portion (16) with the sealing member (15), the mechanical strength of the rear plate (6) is further improved, and at the same time, the oxidation of the rear plate (rust) causes the skirt (3) and the rear. This has the effect of preventing the plate (6) from being peeled off.

第7図は第6図の変形例であり、第2の中間部材A
(5)がパネルとの接合面から内側(管軸方向)へ向か
って設けられた場合を示している。
FIG. 7 is a modified example of FIG.
(5) shows a case where it is provided inward (in the tube axis direction) from the joint surface with the panel.

この実施例では第2の中間部材A(5)とスカート
(3)の接合面及び第2の中間部材A(5)とリアプレ
ートの接触面をカバーするように全周にわたって封止部
材(17)が設けられている。この場合も第6図の実施例
と同様な効果が得られる。
In this embodiment, the sealing member (17) is provided over the entire circumference so as to cover the joint surface between the second intermediate member A (5) and the skirt (3) and the contact surface between the second intermediate member A (5) and the rear plate. ) Is provided. In this case, the same effect as that of the embodiment shown in FIG. 6 can be obtained.

また本発明の外囲器はモノクローム受像管、カラー受
像管の何れの場合にも適用される。
The envelope of the present invention is applicable to both monochrome picture tubes and color picture tubes.

第8図は本発明を適用したカラー受像管の概略断面図
を示す一実施例であり、詳細に説明する。
FIG. 8 is an embodiment showing a schematic sectional view of a color picture tube to which the present invention is applied, which will be described in detail.

カラー受像管(201)は内部が真空排気された外囲器
(陰極線管外囲器)(202)に内装された多数電子銃部
(203)とフェースプレート(204)の内面に形成された
3本の蛍光体のストライプR,G,Bを1グループとするメ
タルバックされたスクリーン部(205)と前記スクリー
ン部(205)に所定間隔をもって対設され多数の電子ビ
ーム通過域(206)を有するシャドウマスク(207)と前
記シャドウマスク(207)を支持するフレーム(208)か
ら成るマスク部(209)とから構成されている。
The color picture tube (201) is formed on an inner surface of a multiple electron gun unit (203) and a face plate (204) housed in an envelope (cathode ray tube envelope) (202) whose inside is evacuated. A metal-backed screen portion (205) having stripes R, G, and B of the book as one group and a large number of electron beam passage areas (206) opposed to the screen portion (205) at predetermined intervals. It comprises a shadow mask (207) and a mask section (209) composed of a frame (208) supporting the shadow mask (207).

電子銃部(203)はそれぞれ実質的に3本の電子銃を
含みそれぞれ実質的に3本の電子ビームを各色に対応し
た映像信号に応じて発生させ、これらの電子ビームがス
クリーン部(205)の所定領域を走査する。
Each of the electron gun units (203) includes substantially three electron guns and generates substantially three electron beams in accordance with a video signal corresponding to each color, and these electron beams are generated by the screen unit (205). Is scanned in a predetermined area.

各電子ビームは所定の角度でシャドウマスク(207)
に入射しこれによって選択されスクリーン部(205)上
の所定の蛍光体を衝撃発光させる。また、スクリーン部
(205)は多数の電子銃部(203)によって小領域に分割
されていて、それぞれ分割走査される。本実施例の場合
は垂直方向に3分割、水平方向に4分割計12分割されて
いる。
Each electron beam is shadow mask (207) at a predetermined angle.
And a predetermined phosphor on the screen part (205) selected by this is caused to emit a shock light. The screen unit (205) is divided into small areas by a large number of electron gun units (203), and each is divided and scanned. In this embodiment, the image is divided into three in the vertical direction and four in the horizontal direction, for a total of 12 divisions.

この様なカラー受像管は小形のカラー受像管を複数個
並列配置した場合と同様に見なすことができるので画像
品位、即ちコンバーセンス、解像度(スクリーンでの電
子ビームのスポット径)は小形のカラー受像管並で同じ
サイズの通常のカラー受像管に比べて極めて良好であ
る。
Since such a color picture tube can be regarded as a case where a plurality of small color picture tubes are arranged in parallel, the image quality, that is, convergence and resolution (spot diameter of the electron beam on the screen) are small. This is extremely good as compared with a normal color picture tube of the same size as a tube.

本実施例の様にフェースプレート(204)とリアプレ
ート(211)を連結する。
The face plate (204) and the rear plate (211) are connected as in the present embodiment.

中間部材(212)に突出部(210)を設けることでフェ
ースプレート(204)とリアプレート(211)の熱膨張量
の差分を吸収でき、大形のカラー受像管においても容易
に製作でき、その工業的価値は極めて大きい。
By providing the protruding portion (210) on the intermediate member (212), the difference in the amount of thermal expansion between the face plate (204) and the rear plate (211) can be absorbed, making it easy to manufacture even a large color picture tube. The industrial value is extremely large.

〔発明の効果〕〔The invention's effect〕

本発明によれば陰極線管外囲器の一部、特に形状の複
雑なファンネルに金属を用いることで、外囲器の成形性
を向上させ、且つ外囲器の熱容量の分布を均一化できる
ので熱工程中に外囲器各部に発生する熱歪を軽減でき、
量産性に優れた陰極線管外囲器を得ることができる。
According to the present invention, since the metal is used for a part of the cathode ray tube envelope, particularly for a funnel having a complicated shape, the moldability of the envelope can be improved, and the distribution of the heat capacity of the envelope can be made uniform. Thermal distortion generated in each part of the envelope during the heat process can be reduced,
A cathode ray tube envelope excellent in mass productivity can be obtained.

更に差分吸収手段を有する中間部材を外囲器の一部に
用いることにより容易に大形の外囲器を形成することが
できる。
Further, by using the intermediate member having the difference absorbing means as a part of the envelope, a large envelope can be easily formed.

また、本発明の外囲器をカラー受像管に適用すること
により、薄型、軽量で防爆特性の優れたカラー受像管を
得ることができる。
In addition, by applying the envelope of the present invention to a color picture tube, a thin, light-weight color picture tube having excellent explosion-proof characteristics can be obtained.

【図面の簡単な説明】[Brief description of the drawings]

第1図は本発明の一実施例を示す陰極線管外囲器の概略
斜視図、第2図は第1図の概略断面図、第3図は第2図
の一部拡大図、第4図(a)及び(b)は中間部材の動
作を説明するための模式図、第5図乃至第7図は本発明
の他の実施例を示す一部拡大図、第8図は本発明の一実
施例を示すカラー受像管の概略断面図、第9図は従来の
カラー受像管の概略断面図である。
1 is a schematic perspective view of a cathode ray tube envelope showing one embodiment of the present invention, FIG. 2 is a schematic sectional view of FIG. 1, FIG. 3 is a partially enlarged view of FIG. 2, and FIG. (A) and (b) are schematic views for explaining the operation of the intermediate member, FIGS. 5 to 7 are partially enlarged views showing another embodiment of the present invention, and FIG. FIG. 9 is a schematic sectional view of a color picture tube showing an embodiment, and FIG. 9 is a schematic sectional view of a conventional color picture tube.

───────────────────────────────────────────────────── フロントページの続き (58)調査した分野(Int.Cl.6,DB名) H01J 29/86 H01J 31/10 - 31/20 H01J 31/00 ──────────────────────────────────────────────────続 き Continued on the front page (58) Field surveyed (Int.Cl. 6 , DB name) H01J 29/86 H01J 31/10-31/20 H01J 31/00

Claims (2)

(57)【特許請求の範囲】(57) [Claims] 【請求項1】平面形状が略矩形状を成すフェースプレー
トと前記フェースプレートの周縁部から管軸とほぼ平行
に延在するスカートからなるガラスパネルと、複数のガ
ラスネックと、前記複数のガラスネックから延在する漏
斗状の複数のファンネルと、前記ガラスパネルと前記複
数のファンネルとを相互に連結し前記フェースプレート
と略平行な主面を有する金属連結部材と、前記複数のフ
ァンネルと前記金属連結部材とを連結する第1の中間部
材と、前記ガラスパネルと前記金属連結部材とを連結す
る第2の中間部材とを備え、 少なくとも前記第1の中間部材または前記第2の中間部
材には前記金属連結部材と前記ファンネルまたは前記ガ
ラスパネルとの差分を吸収する差分吸収手段を有するこ
とを特徴とする陰極線管外囲器。
1. A glass plate comprising a face plate having a substantially rectangular planar shape, a skirt extending from a peripheral portion of the face plate substantially parallel to a tube axis, a plurality of glass necks, and the plurality of glass necks A plurality of funnels extending from a funnel, a metal connecting member interconnecting the glass panel and the plurality of funnels and having a main surface substantially parallel to the face plate, and the plurality of funnels and the metal connection. A first intermediate member that connects the member and a second intermediate member that connects the glass panel and the metal connecting member, wherein at least the first intermediate member or the second intermediate member includes the first intermediate member or the second intermediate member. A cathode ray tube envelope comprising a difference absorbing means for absorbing a difference between a metal connecting member and the funnel or the glass panel.
【請求項2】平面形状が略矩形状を成すフェースプレー
トと前記フェースプレートの周縁部から管軸とほぼ平行
に延在するスカートからなるガラスパネルと、前記ガラ
スパネルの内面に形成された蛍光スクリーンと、前記蛍
光スクリーンに電子ビームを射突させ前記蛍光スクリー
ンを発光させる電子源と、複数のガラスネックと、前記
複数のガラスネックから延在する漏斗状の複数のファン
ネルと、前記ガラスパネルと前記複数のファンネルとを
相互に連結し前記フェースプレートと略平行な主面を有
する金属連結部材と、前記複数のファンネルと前記金属
連結部材とを連結する第1の中間部材と、前記ガラスパ
ネルと前記金属連結部材とを連結する第2の中間部材と
を備え、 少なくとも前記第1の中間部材または前記第2の中間部
材には前記金属連結部材と前記ファンネルまたは前記ガ
ラスパネルとの差分を吸収する差分吸収手段を有するこ
とを特徴とする陰極線管。
2. A glass plate comprising a face plate having a substantially rectangular planar shape, a skirt extending substantially parallel to a tube axis from a peripheral portion of the face plate, and a fluorescent screen formed on an inner surface of the glass panel. And an electron source that irradiates the phosphor screen with an electron beam to cause the phosphor screen to emit light, a plurality of glass necks, a funnel-shaped funnel extending from the plurality of glass necks, the glass panel, and the glass panel. A metal connecting member that interconnects the plurality of funnels and has a main surface substantially parallel to the face plate; a first intermediate member that connects the plurality of funnels to the metal connecting member; A second intermediate member for connecting to a metal connecting member, wherein at least the first intermediate member or the second intermediate member is A cathode ray tube comprising a difference absorbing means for absorbing a difference between the metal connecting member and the funnel or the glass panel.
JP25210789A 1988-11-16 1989-09-29 Cathode ray tube envelope and cathode ray tube Expired - Lifetime JP2963702B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP25210789A JP2963702B2 (en) 1988-11-16 1989-09-29 Cathode ray tube envelope and cathode ray tube

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
JP63-287522 1988-11-16
JP28752288 1988-11-16
JP25210789A JP2963702B2 (en) 1988-11-16 1989-09-29 Cathode ray tube envelope and cathode ray tube

Publications (2)

Publication Number Publication Date
JPH02223139A JPH02223139A (en) 1990-09-05
JP2963702B2 true JP2963702B2 (en) 1999-10-18

Family

ID=26540552

Family Applications (1)

Application Number Title Priority Date Filing Date
JP25210789A Expired - Lifetime JP2963702B2 (en) 1988-11-16 1989-09-29 Cathode ray tube envelope and cathode ray tube

Country Status (1)

Country Link
JP (1) JP2963702B2 (en)

Also Published As

Publication number Publication date
JPH02223139A (en) 1990-09-05

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