JPH0754693B2 - Display tube for light source - Google Patents
Display tube for light sourceInfo
- Publication number
- JPH0754693B2 JPH0754693B2 JP63060757A JP6075788A JPH0754693B2 JP H0754693 B2 JPH0754693 B2 JP H0754693B2 JP 63060757 A JP63060757 A JP 63060757A JP 6075788 A JP6075788 A JP 6075788A JP H0754693 B2 JPH0754693 B2 JP H0754693B2
- Authority
- JP
- Japan
- Prior art keywords
- getter
- light source
- display tube
- plate
- electrode group
- 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 - Fee Related
Links
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J2209/00—Apparatus and processes for manufacture of discharge tubes
- H01J2209/38—Control of maintenance of pressure in the vessel
- H01J2209/385—Gettering
Landscapes
- Vessels, Lead-In Wires, Accessory Apparatuses For Cathode-Ray Tubes (AREA)
- Cathode-Ray Tubes And Fluorescent Screens For Display (AREA)
- Discharge Lamps And Accessories Thereof (AREA)
Description
【発明の詳細な説明】 〔産業上の利用分野〕 この発明は、大画面デイスプレイ装置、特にカラーデイ
スプレイ装置の画素を構成する光源用表示管に関するも
のである。Description: TECHNICAL FIELD The present invention relates to a light source display tube which constitutes a pixel of a large-screen display device, particularly a color display device.
蛍光体の発光を利用した単色表示管を一画素としてマト
リクス状に配列して大画面デイスプレイ装置を構成した
場合、その各単色表示管の接続部にスペースができて解
像度の向上が困難であるとともに高解像化にともなって
コスト高を招くことがあった。When a large-screen display device is constructed by arranging single-color display tubes utilizing the light emission of the phosphor as one pixel in a matrix, there is a space at the connection portion of each single-color display tube, and it is difficult to improve the resolution. Higher resolution may result in higher cost.
そこで、従来、例えば特開昭62-10849号公報に示された
複合型の光源用表示管が提案された。Therefore, conventionally, for example, a composite type light source display tube disclosed in JP-A-62-10849 has been proposed.
第３図および第４図はこの複合型の光源用表示管の基本
構造を示す正面図およびそのIV-IV線断面図、第５図は
その一部の分解斜視図であり、Ｒ（赤色）、Ｇ（緑色）
およびＢ（青色）の蛍光体のそれぞれを１画素とする蛍
光面を画素数にして３×３画素のマトリクス状に配列し
た場合を示す。3 and 4 are a front view and a sectional view taken along the line IV-IV of the basic structure of the composite type light source display tube, and FIG. 5 is an exploded perspective view of a part thereof, in which R (red) is shown. , G (green)
2 shows the case where the phosphor screens each having one of the B and blue (B) phosphors as one pixel are arranged in a matrix of 3 × 3 pixels.
これらの図において、１は前面パネル２と背面板３およ
び筒状側板４により気密封止されたガラス管体としての
真空外囲器であり、上記前面パネル２の内面には、三色
蛍光体R,G,Bの各々を単位画素としてマトリクス状に塗
布配列し、３×３画素の蛍光面5R,5Gおよび5Bからなる
蛍光表示部５が形成されている。ここで、蛍光面5R,5G
および5Bの添え字は赤色（Ｒ），緑色（Ｇ）および青色
（Ｂ）にそれぞれ対応する。In these figures, reference numeral 1 denotes a vacuum envelope as a glass tube which is hermetically sealed by a front panel 2, a back plate 3 and a tubular side plate 4, and an inner surface of the front panel 2 has a three-color phosphor. Each of R, G, and B is applied as a unit pixel in a matrix to form a fluorescent display portion 5 including 3 × 3 pixel fluorescent screens 5R, 5G, and 5B. Here, phosphor screen 5R, 5G
The subscripts of 5B and 5B correspond to red (R), green (G) and blue (B), respectively.
６は蛍光表示部５の各蛍光面5R,5Gおよび5Bの周辺にそ
れぞれ対応して配置された複数の加速用陽極61,62，…
……からなる陽極電極群である。これら加速用陽極61,6
2，………には外部端子16を介して高電圧が印加される
ように構成されているとともに第６図に示すように筒状
側板４に対向する加速用陽極にゲッタ13が取付けられて
おり、このゲッタ13のフラッシュで筒状側板４の内面に
ゲッタ膜14が形成される。Reference numeral 6 designates a plurality of accelerating anodes 6 1 , 6 2 , ... Correspondingly arranged around the respective fluorescent screens 5R, 5G and 5B of the fluorescent display section 5.
It is an anode electrode group consisting of. These acceleration anodes 6 1 , 6
2 , ... are configured so that a high voltage is applied through the external terminals 16, and the getter 13 is attached to the accelerating anode facing the tubular side plate 4 as shown in FIG. The getter film 14 is formed on the inner surface of the cylindrical side plate 4 by the flash of the getter 13.
７は蛍光表示部５の各蛍光面5R,5G,5Bに対応して電子放
出用のカソード711〜733（図示せず）がそれぞれ独立し
て配置されたカソード電極群であり、これらカソード7
11〜733は各々の両端が背面板３上に固定された一対の
サポート17a,17b間に支持されている。ここでカソード7
11〜733の第1,第２番目の添え字はそれぞれ第１〜３
行、第１〜３列目に対応する。Reference numeral 7 denotes a cathode electrode group in which electron emission cathodes 7 11 to 7 33 (not shown) are independently arranged in correspondence with the respective fluorescent screens 5R, 5G, 5B of the fluorescent display unit 5. 7
11-7 33 a pair of support 17a, each of the both ends are fixed on the rear plate 3 is supported between 17b. Here cathode 7
The 1st and 2nd subscripts of 11 to 7 33 are 1 to 3 respectively
It corresponds to the rows and the first to third columns.
なお、各カソード711〜733には、例えばNiスリーブ上に
酸化物をコーテイングした傍熱型あるいはタングステン
に酸化物をコーテイングした直熱型のものが使用でき
る。Note that the cathodes 7 11-7 33, for example, a straight thermal which was coated an oxide indirectly heated or tungsten was coated with oxide on the Ni sleeve can be used.
また、８はこのカソード電極群７と蛍光表示部５との間
に配置された行選択用の制御グリッド81〜83からなるグ
リッド電極群であり、これら制御グリッド81〜83には、
蛍光表示部５の各蛍光面5R,5Gおよび5Bに対応してその
行方向にそれぞれカソード711〜733よりの電子ビーム11
を非集束ビームとして通過すべく電子通過用穴91〜93が
設けられている。Further, 8 is a grid electrode group composed of control grids 8 1 to 8 3 for row selection arranged between the cathode electrode group 7 and the fluorescent display portion 5, and these control grids 8 1 to 8 3 ,
The electron beams 11 from the cathodes 7 11 to 7 33 are arranged in the row direction corresponding to the respective fluorescent screens 5R, 5G and 5B of the fluorescent display portion 5.
The electron passing holes 9 1 to 9 3 are provided to pass the beam as a non-focused beam.
10はカソード電極群７の背面側、つまり、真空外囲器１
の一部をなす背面板３上に、蛍光表示部５の各々の蛍光
面5R,5Gおよび5Bに対応して、その列方向にそれぞれ対
向配置されたストライブ状の列選択用の背面電極101〜1
03からなる背面電極群であり、これら背面電極101〜103
はAg等の導体層から形成されている。10 is the back side of the cathode electrode group 7, that is, the vacuum envelope 1
On the back plate 3 forming a part of the strip display, corresponding to the respective fluorescent screens 5R, 5G and 5B of the fluorescent display section 5 and arranged in the column direction so as to be opposed to each other in a striped manner. 1 ~ 1
This is a back electrode group consisting of 0 3 and these back electrodes 10 1 to 10 3
Is formed of a conductor layer such as Ag.
そして、前記各背面電極101〜103は、各カソード711〜7
33の電位に対して負および0Vまたは数Ｖの正電位を付与
することにより、それらカソード711〜733から放出する
電子ビーム11を制御するものとなっている。Then, each of the back electrodes 10 1 to 10 3, each cathode 7 11-7
By applying a positive potential of the negative and 0V or several V with respect to 33 of the potential, which is intended to control the electron beam 11 to be emitted from their cathode 7 11-7 33.
なお、12は背面板３よりカソード電極群７、グリッド電
極群８および背面電極群10の各々の電極を外部へ引き出
す外部端子としてのリード線である。Reference numeral 12 is a lead wire as an external terminal for drawing out each electrode of the cathode electrode group 7, the grid electrode group 8 and the back electrode group 10 from the back plate 3.
次に動作について説明する。まず、各背面電極101〜103
がカソード711〜733の電位に対して負の電位のとき、こ
れらカソード711〜733のまわりが負の電位で取り囲まれ
るため、各カソード711〜733からの電子は制御グリッド
81〜83および加速用陽極61,62，………へ流れず、カツ
トオフ状態となる。Next, the operation will be described. First, the back electrode 10 1 to 10 3
When a negative potential relative to the potential of but cathode 7 11-7 33, because around these cathode 7 11-7 33 is surrounded by a negative potential, electrons from the cathode 7 11-7 33 control grid
8 1 to 8 3 and the accelerating anodes 6 1 , 6 2 , ... do not flow to the cut-off state.
そこで、前記背面電極101〜103にカソード711〜733の電
位に対して0Vまたは数Ｖの正電位を加えると、これらカ
ソード711〜733から放出される電子ビーム11が制御グリ
ッド81〜83へ向って流れる。Therefore, the addition of positive potential of 0V or several V relative to the potential of the cathode 7 11-7 33 to the back electrode 10 1 to 10 3, the electron beam 11 emitted from the cathodes 7 11-7 33 control grid It flows toward 8 1 to 8 3 .
このとき、各制御グリッド81〜83の電位が前記カソード
711〜733に対して負の電位の時は、これら制御グリッド
81〜83の電子通過用穴91〜93から電子ビーム11の通過が
できず、加速用陽極61,62，………に電子ビーム11は流
れず、蛍光表示部５の各蛍光面5R,5G,および5Bは発光し
ない。At this time, the potential of each control grid 8 1 to 8 3 is changed to the cathode.
When the potential is negative with respect to 7 11 to 7 33 , these control grids are
The electron beam 11 cannot pass through the electron passage holes 9 1 to 9 3 of 8 1 to 8 3 and the electron beam 11 does not flow to the accelerating anodes 6 1 , 6 2 , ... The phosphor screens 5R, 5G, and 5B do not emit light.
そして、制御グリッド81〜83の電位がカソード711〜733
に対して正の電位の時は、これら制御グリッド81〜83の
電子通過用穴91〜93から電子ビーム11がそれぞれ通過
し、各蛍光面5R,5G,および5Bを発光させる。Then, the potentials of the control grids 8 1 to 8 3 are changed to the cathodes 7 11 to 7 33.
On the other hand, when the potential is positive, the electron beams 11 pass through the electron passage holes 9 1 to 9 3 of these control grids 8 1 to 8 3 respectively, and each phosphor screen 5R, 5G, and 5B emits light.
したがって、上記各蛍光面5R,5G,および5Bと対応してマ
トリクス状に配列されたグリッド電極群８の各制御グリ
ッド81〜83と背面電極群10の各背面電極101〜103とを選
択的に駆動制御（ダイナミック駆動）することにより、
この両電極の交差する蛍光面5R,5G,および5Bのみを選択
的に発光させることができる。Therefore, the control grids 8 1 to 8 3 of the grid electrode group 8 and the back electrodes 10 1 to 10 3 of the back electrode group 10 which are arranged in a matrix corresponding to the phosphor screens 5R, 5G, and 5B, respectively. By selectively controlling the drive (dynamic drive),
Only the fluorescent surfaces 5R, 5G, and 5B where the two electrodes intersect can be selectively caused to emit light.
上記のように、真空外囲器１を構成する前面パネル２の
内面に三色の蛍光体からなる蛍光面5R,5G,および5Bを３
×３画素のマトリクス状に配列し、これら各蛍光面5R,5
G,,5Bに対応させてカソード電極群７とグリッド電極群
８および背面電極群10を設けることにより、高輝度発光
の光源用表示管を得ることができる。As described above, three phosphor screens 5R, 5G, and 5B made of phosphors of three colors are provided on the inner surface of the front panel 2 constituting the vacuum envelope 1.
They are arranged in a matrix of × 3 pixels, and each of these phosphor screens 5R, 5
By providing the cathode electrode group 7, the grid electrode group 8 and the back electrode group 10 corresponding to G, 5B, it is possible to obtain a display tube for a light source of high brightness light emission.
したがって、この光源用表示管を１セルとして大画面カ
ラーデイスプレイ装置を組み立てる場合、画素が１つの
単色管を用いるものに比べて、各画素間のスペースがせ
まくなり、解像度を向上させることができるとともに、
部品点数および製造工数を減少させることができる。ま
た、構造を簡単にし、かつ、低コストにできるのみでな
く、表示装置の重量も低減させることができる。Therefore, when assembling a large-screen color display device using this light source display tube as one cell, the space between each pixel becomes narrower than that in the case where a single color tube with one pixel is used, and the resolution can be improved. ,
The number of parts and the number of manufacturing steps can be reduced. Further, not only the structure can be simplified and the cost can be reduced, but also the weight of the display device can be reduced.
なお、図示例では前面パネル２の内面にR,GおよびＢの
三色蛍光体からなる蛍体面を３×３画素のマトリクス状
に配列した場合について示したが、これに限定されるも
のではなく、真空外囲器内に１つの蛍光体を１画素とす
る蛍光面を任意のｍ×ｎ画素（ただし、m,nは任意の整
数）のマトリクス状に配列し、それに応じてグリッド電
極群、背面電極群の配置構成を変更することもできる。In addition, in the illustrated example, the case where the phosphor surfaces made of R, G and B tricolor phosphors are arranged in a matrix of 3 × 3 pixels on the inner surface of the front panel 2 is shown, but the invention is not limited to this. In the vacuum envelope, phosphor screens each having one phosphor as one pixel are arranged in a matrix of arbitrary m × n pixels (where m and n are arbitrary integers), and a grid electrode group is arranged accordingly. The arrangement configuration of the back electrode group can be changed.
また、グリッド電極群８の各制御グリッドを横断面Ｕ字
型のチヤンネル状にして、それら各制御グリッドに側方
へ突出する金属から成るシールド板を取り付けることに
より、各制御グリッドと背面板とのすき間から漏れる電
子を前記シールド板にて吸収して、漏れ電子による蛍光
面の疑似発光を効果的に防止する光源用表示管が提案さ
れている（例えば実開昭62-114562号）。In addition, each control grid of the grid electrode group 8 is formed into a channel shape having a U-shaped cross section, and a shield plate made of a metal protruding laterally is attached to each control grid, whereby each control grid and the back plate are connected. There has been proposed a light source display tube in which electrons leaking from a gap are absorbed by the shield plate to effectively prevent pseudo light emission of a fluorescent screen due to leaking electrons (for example, Japanese Utility Model Publication No. 62-114562).
さらに、例えば特開昭62-241256号公報に開示されるよ
うに、上記各制御グリッド81〜83に形成された電子通過
部をドーム状メッシュ部とすることにより、カソード7
11〜733から放出される電子を均一に拡げて蛍光面５に
均一に照射できるとともに、そのドーム状メッシュ部の
曲率に応じて電子ビーム11の拡がり角を任意に調整でき
る。Furthermore, for example, as disclosed in JP-A-62-241256 discloses an electronic pass portion formed on the respective control grids 8 1-8 3 by a dome-shaped mesh portion, the cathode 7
Together can be uniformly irradiated on the phosphor screen 5 uniformly spread the electrons emitted from 11-7 33 can be arbitrarily adjusted divergence angle of the electron beam 11 in accordance with the curvature of the dome-shaped mesh portion.
しかも、ドーム状メッシュ部の曲率を大きくするほどビ
ームの拡がり角が大きくなり、表示管の管長を短かくす
ることができる光源用表示管が提供されている。Moreover, there is provided a light source display tube in which the beam divergence angle increases as the curvature of the dome-shaped mesh portion increases, and the tube length of the display tube can be shortened.
従来の光源用表示管は以上のように構成されているの
で、真空外囲器の側板に対向して陽極電極に取付けてあ
るゲッタをフラッシュさせると、側板内面の広範囲にゲ
ッタ膜が形成され、このゲッタ膜と背面板上に形成され
た制御グリッドとの間の距離が近ずき、その両者間で短
絡あるいは放電などの電気的トラブルを生ずるおそれが
あった。Since the conventional light source display tube is configured as described above, when the getter attached to the anode electrode facing the side plate of the vacuum envelope is flashed, a getter film is formed in a wide area on the inner surface of the side plate, The getter film and the control grid formed on the back plate are closer to each other, which may cause an electrical trouble such as a short circuit or discharge.
この発明は上記に鑑み提案されたもので、ゲッタ膜に起
因する電気的トラベルのおそれのない光源用表示管を得
ることを目的とする。The present invention has been proposed in view of the above, and an object thereof is to obtain a display tube for a light source that is free from the risk of electrical travel due to the getter film.
この発明に係る光源用表示管は、カソード電極群、グリ
ッド電極群、背面電極群を取付ける基板を真空外囲器の
背面板より浮かせて設け、この基板の裏面に背面板に対
向してゲッタを設け、ゲッタを囲むように背面板側に開
口部を有するゲッタ取り付け板を備えたものである。In the light source display tube according to the present invention, a substrate on which the cathode electrode group, the grid electrode group, and the back electrode group are mounted is provided so as to float above the back plate of the vacuum envelope, and a getter is provided on the back surface of the substrate so as to face the back plate. The getter mounting plate is provided and has an opening on the back plate side so as to surround the getter.
この発明における光源用表示管は、真空外囲器の背面板
より浮かせて設けた基板の裏面に、背面板と対向してゲ
ッタを設けたことにより、ゲッタのフラッシュによって
背面板に広範囲にゲッタ膜が形成されても、このゲッタ
膜と基板上に設けられた各電極群との距離が近ずくこと
がなく、ゲッタ膜に起因した電気的トラブルの生ずるお
それはない。特にゲッタを囲むように背面板側に開口部
を有するゲッタ取り付け板20を備えることによって、背
面板側へのゲッタ飛散面積を十分に確保しつつ、基板側
へのゲッタ飛散を抑制することができる。The light source display tube according to the present invention has the getter film provided on the rear plate of the vacuum envelope in a wide range by the getter flash by providing the getter on the back surface of the substrate which is provided so as to face the rear plate. Even when the film is formed, the distance between the getter film and each electrode group provided on the substrate does not become short, and there is no possibility of causing an electrical trouble due to the getter film. In particular, by providing the getter mounting plate 20 having the opening on the back plate side so as to surround the getter, it is possible to sufficiently secure the getter scattering area to the back plate side and suppress the getter scattering to the substrate side. .
以下、この発明の実施例を図について説明する。第１図
はこの発明の光源用表示管の一部の断面図であり、第１
図において、18は真空外囲器１の背面板３より浮かせて
設けた例えばセラミックの基板にして、この基板18の表
面に背面電極群10とカソード群７および横断面Ｕ字形の
チヤンネル状のグリッド電極群８を取付けている。そし
て、各電極群のリード線12は基板18を貫通あるいは基板
周面の切欠きを通して該基板の裏面に導き、低融点ガラ
ス15で接合された背面板３と筒状側板４との接合部を通
して外部へ導出している。従って、基板18は特別な取付
け部材を用いることなく、リード線12によって背面板上
に浮かして支持される。19は背面板３に対向して基板13
の裏面に取り付けたゲッタで、背面板側に開口部を有す
るゲッタ取り付け板20によって囲まれている。Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is a sectional view of a part of the light source display tube of the present invention.
In the figure, reference numeral 18 denotes a ceramic substrate, for example, which is floated from the rear plate 3 of the vacuum envelope 1, and a rear electrode group 10, a cathode group 7, and a U-shaped cross section grid on the surface of the substrate 18. The electrode group 8 is attached. Then, the lead wires 12 of each electrode group are guided to the back surface of the substrate through the substrate 18 or through the notches in the peripheral surface of the substrate, and through the joint portion between the back plate 3 and the tubular side plate 4 joined by the low melting point glass 15. Outsourced to the outside. Therefore, the substrate 18 is floated and supported by the lead wire 12 on the back plate without using a special mounting member. 19 is a substrate 13 facing the back plate 3
The getter is attached to the back surface of, and is surrounded by the getter attachment plate 20 having an opening on the back plate side.
上記の構成により、ゲッタ19をフラッシュさせると、背
面板上にゲッタ膜21が形成されるが、基板表面に設けた
各種電極群との距離を近づけることがなく、電気的トラ
ブルを生ずることがない。ゲッタ19は第２図に示すよう
に、基板裏面のゲッタ取り付け板20をコ字型遮蔽部22に
変更し、この遮蔽部22の内部にゲッタ19を設けるように
すれば、ゲッタ膜21の広がりを制御することができ、ゲ
ッタ膜21に起因した電気的トラブルを確実に防止しつ
つ、ゲッタ面積の拡大を図り、真空度を高めることがで
きる。With the above configuration, when the getter 19 is flashed, the getter film 21 is formed on the back plate, but the distance to various electrode groups provided on the substrate surface is not reduced, and no electrical trouble occurs. . As for the getter 19, as shown in FIG. 2, if the getter mounting plate 20 on the back surface of the substrate is changed to a U-shaped shield portion 22 and the getter 19 is provided inside the shield portion 22, the getter film 21 spreads. Therefore, it is possible to reliably prevent electrical troubles due to the getter film 21, while increasing the getter area and increasing the degree of vacuum.
以上のように、この発明によれば、真空外囲器の背面板
より浮かせて基板を設け、この基板表面に背面電極群、
カソード電極群、グリッド電極群などの各種電極群を取
付け、その基板裏面にゲッタを設けるように構成したの
で、ゲッタのフラッシュによるゲッタ膜は背面板に形成
されても、このゲッタ膜と基板上に設けられた各電極群
との距離が近づくことがなく、このゲッタ膜に起因する
電気的トラブルを確実に防止することができる。特に、
背面板側に開口部を有するゲッタ取り付け板を備えるこ
とによって、基板側へのゲッタ飛散を抑制することがで
きる。従って、ゲッタの燃焼を十分に行い、背面板上で
のゲッタ面積を十分に確保することができ、ゲッタによ
って真空外囲器内の真空度を十分に高め信頼性を向上す
ることができる効果がある。As described above, according to the present invention, the substrate is provided so as to float above the back plate of the vacuum envelope, and the back electrode group is provided on the surface of the substrate.
Since various electrode groups such as the cathode electrode group and the grid electrode group are attached and the getter is provided on the back surface of the substrate, even if the getter film by the flash of the getter is formed on the back plate, It is possible to reliably prevent electrical troubles due to the getter film, since the distance from each of the provided electrode groups does not become short. In particular,
By providing the getter mounting plate having the opening on the back plate side, it is possible to suppress getter scattering toward the substrate side. Therefore, the getter can be sufficiently burned, the getter area on the back plate can be sufficiently secured, and the getter can sufficiently increase the degree of vacuum in the vacuum envelope and improve the reliability. is there.
第１図はこの発明の一実施例による光源用表示管の一部
の断面図、第２図はゲッタの取付け状態を示す斜視図、
第３図は従来の光源用表示管の正面図、第４図は第３図
IV-IV線に沿う横断面図、第５図はその一部の分解斜視
図、第６図は第４図の一部の断面図である。 １は真空外囲器、２は前面パネル、３は背面板、４は側
板、5R,5G,5Bは蛍光面、６は陽極電極、７はカソード、
８はグリッド電極、18は基板、19はゲッタ、21はゲッタ
膜。 なお、図中、同一符号は同一又は相当部分を示す。FIG. 1 is a sectional view of a part of a light source display tube according to an embodiment of the present invention, and FIG. 2 is a perspective view showing a mounted state of a getter.
FIG. 3 is a front view of a conventional display tube for a light source, and FIG. 4 is FIG.
Fig. 5 is a cross sectional view taken along line IV-IV, Fig. 5 is an exploded perspective view of a part thereof, and Fig. 6 is a cross sectional view of a part of Fig. 4. 1 is a vacuum envelope, 2 is a front panel, 3 is a back plate, 4 is a side plate, 5R, 5G and 5B are fluorescent screens, 6 is an anode electrode, 7 is a cathode,
8 is a grid electrode, 18 is a substrate, 19 is a getter, and 21 is a getter film. In the drawings, the same reference numerals indicate the same or corresponding parts.
───────────────────────────────────────────────────── フロントページの続き (72)発明者 小林 正秋 三重県伊勢市上野町字和田700番地 伊勢 電子工業株式会社内 (72)発明者 増田 満 三重県伊勢市上野町字和田700番地 伊勢 電子工業株式会社内 (72)発明者 原 善一郎 長崎県長崎市丸尾町６番14号 三菱電機株 式会社長崎製作所内 (72)発明者 寺崎 信夫 長崎県長崎市丸尾町６番14号 三菱電機株 式会社長崎製作所内 (72)発明者 岩田 修司 兵庫県尼崎市塚口本町８丁目１番１号 三 菱電機株式会社応用機器研究所内 (56)参考文献 特開 昭62−188129（ＪＰ，Ａ) 特開 昭61−218055（ＪＰ，Ａ) 実開 昭62−54455（ＪＰ，Ｕ) ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Masaaki Kobayashi 700 Wada, Ueno Town, Ise City, Mie Prefecture Ise Electronics Industry Co., Ltd. (72) Mitsuru Masuda 700 Wada, Ueno Town, Ise City, Mie Prefecture Ise Electronics Industry (72) Inventor Zenichiro Hara 6-14 Maruo-cho, Nagasaki-shi, Nagasaki Mitsubishi Electric Corporation Nagasaki Works (72) Inventor Nobuo Terasaki 6-14 Maruo-cho, Nagasaki-shi, Nagasaki Mitsubishi Electric Corporation (72) Inventor Shuji Iwata Shuji Iwata 8-1-1 Tsukaguchihonmachi, Amagasaki City, Hyogo Sanyo Electric Co., Ltd. Applied Equipment Research Laboratory (56) Reference JP-A-62-188129 (JP, A) JP-A-SHO 61-218055 (JP, A) Actually opened 62-54455 (JP, U)
Claims (2)
板を気密に接合した真空外囲器と、前記前面パネルの内
面に形成された蛍光面に高電圧を印加し、かつ、その蛍
光面を取り囲むように該前面パネルに対して垂直に固定
された陽極電極と、前記蛍光面に対応して配設された電
子放出用カソードおよび電子の流れを制御するグリッド
電極と背面電極を有する光源用表示管において、表面に
前記電子放出用カソードおよびグリッド電極と背面電極
を取付け前記背面板より浮かせて設けた基板と、前記背
面板上にゲッタ膜飛散部を形成するように前記基板の裏
面に設けたゲッタと、前記ゲッタを囲み、前記背面板側
に開口部を有するゲッタ取り付け板とを具備したことを
特徴とする光源用表示管。1. A vacuum envelope in which a front panel is joined to the front surface of a tubular side plate, and a back panel is joined to the back surface in an airtight manner, and a high voltage is applied to a fluorescent screen formed on the inner surface of the front panel, and It has an anode electrode fixed vertically to the front panel so as to surround the phosphor screen, an electron emission cathode arranged corresponding to the phosphor screen, a grid electrode for controlling the flow of electrons, and a back electrode. In a display tube for a light source, a substrate provided with the cathode for electron emission, a grid electrode, and a back electrode attached to the front surface so as to be floated from the back plate, and a back surface of the substrate so as to form a getter film scattering portion on the back plate. And a getter mounting plate surrounding the getter and having an opening on the back plate side, the display tube for a light source.
を特徴とする請求項（１）記載の光源用表示管。2. The display tube for a light source according to claim 1, wherein the shield plate has a U-shaped cross section.
Priority Applications (11)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP63060757A JPH0754693B2 (en) | 1988-03-15 | 1988-03-15 | Display tube for light source |
| US07/318,329 US4972116A (en) | 1988-03-15 | 1989-03-03 | Light source display tube |
| CA000592976A CA1312647C (en) | 1988-03-15 | 1989-03-07 | Light source display tube |
| AU31098/89A AU612243B2 (en) | 1988-03-15 | 1989-03-07 | Light source display tube |
| DE68928700T DE68928700T2 (en) | 1988-03-15 | 1989-03-11 | Light source display tube |
| EP89104346A EP0333079B1 (en) | 1988-03-15 | 1989-03-11 | Light source display tube |
| AU74122/91A AU7412291A (en) | 1988-03-15 | 1991-04-08 | Light source display tube |
| AU74124/91A AU638321B2 (en) | 1988-03-15 | 1991-04-08 | Light source display tube |
| AU74123/91A AU638320B2 (en) | 1988-03-15 | 1991-04-08 | Light source display tube |
| CA000616316A CA1314922C (en) | 1988-03-15 | 1992-02-24 | Light source display tube |
| HK98110045A HK1009359A1 (en) | 1988-03-15 | 1998-08-20 | Light source display tube |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP63060757A JPH0754693B2 (en) | 1988-03-15 | 1988-03-15 | Display tube for light source |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH01235152A JPH01235152A (en) | 1989-09-20 |
| JPH0754693B2 true JPH0754693B2 (en) | 1995-06-07 |
Family
ID=13151466
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP63060757A Expired - Fee Related JPH0754693B2 (en) | 1988-03-15 | 1988-03-15 | Display tube for light source |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0754693B2 (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3423511B2 (en) * | 1994-12-14 | 2003-07-07 | キヤノン株式会社 | Image forming apparatus and getter material activation method |
| JP3100131B1 (en) | 1998-09-07 | 2000-10-16 | キヤノン株式会社 | Image forming device |
| JP3420520B2 (en) | 1999-01-13 | 2003-06-23 | キヤノン株式会社 | Non-evaporable getter manufacturing method and image forming apparatus |
| JP3518855B2 (en) | 1999-02-26 | 2004-04-12 | キヤノン株式会社 | Getter, hermetic container having getter, image forming apparatus, and method of manufacturing getter |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH063714B2 (en) * | 1985-03-25 | 1994-01-12 | 松下電器産業株式会社 | Image display device |
| JPH0322841Y2 (en) * | 1985-09-26 | 1991-05-17 | ||
| JPS62188129A (en) * | 1986-02-13 | 1987-08-17 | Mitsubishi Electric Corp | Fluorescent character display tube |
-
1988
- 1988-03-15 JP JP63060757A patent/JPH0754693B2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JPH01235152A (en) | 1989-09-20 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JPS6210849A (en) | Display tube for light source | |
| US4972116A (en) | Light source display tube | |
| JPH0754693B2 (en) | Display tube for light source | |
| JP2596785B2 (en) | Display tube for light source | |
| JPH0752637B2 (en) | Display tube for light source | |
| JP3173953B2 (en) | Light emitting element | |
| JPH0654658B2 (en) | Display tube for light source | |
| JPH079794B2 (en) | Display tube for light source | |
| JPH01253148A (en) | Display tube for light source | |
| JPH0642362B2 (en) | Display tube for light source | |
| JP3136542B2 (en) | Light emitting element | |
| JPH053005A (en) | Light-emitting element | |
| JPH0642363B2 (en) | Display tube for light source | |
| JP2757271B2 (en) | Light emitting device manufacturing equipment | |
| JP2775205B2 (en) | Light emitting element | |
| JPH06111736A (en) | Light emitting element | |
| JPH01235147A (en) | Display tube for light source | |
| JPS6129056A (en) | Dot matrix fluorescent character display tube | |
| JPH0245898Y2 (en) | ||
| JPH0673264B2 (en) | Manufacturing method of anode electrode in light source display tube | |
| JPH04315762A (en) | Light-emitting element | |
| JPH08138590A (en) | Fluorescent display tube | |
| JP2751192B2 (en) | Fluorescent display tube | |
| JPH06333518A (en) | Light-emitting device | |
| JPH0614395Y2 (en) | Flat display |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| LAPS | Cancellation because of no payment of annual fees |