JPS59111239A - Phosphor display panel for both-side observation - Google Patents

Phosphor display panel for both-side observation

Info

Publication number
JPS59111239A
JPS59111239A JP21975682A JP21975682A JPS59111239A JP S59111239 A JPS59111239 A JP S59111239A JP 21975682 A JP21975682 A JP 21975682A JP 21975682 A JP21975682 A JP 21975682A JP S59111239 A JPS59111239 A JP S59111239A
Authority
JP
Japan
Prior art keywords
anode
filament
display panel
phosphor
sides
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.)
Pending
Application number
JP21975682A
Other languages
Japanese (ja)
Inventor
Yukitoshi Yoshida
吉田 幸敏
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.)
NEC Corp
Original Assignee
NEC Corp
Nippon Electric Co Ltd
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 NEC Corp, Nippon Electric Co Ltd filed Critical NEC Corp
Priority to JP21975682A priority Critical patent/JPS59111239A/en
Publication of JPS59111239A publication Critical patent/JPS59111239A/en
Pending legal-status Critical Current

Links

Classifications

    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01JELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J31/00Cathode ray tubes; Electron beam tubes
    • H01J31/08Cathode ray tubes; Electron beam tubes having a screen on or from which an image or pattern is formed, picked up, converted, or stored
    • H01J31/10Image or pattern display tubes, i.e. having electrical input and optical output; Flying-spot tubes for scanning purposes
    • H01J31/12Image or pattern display tubes, i.e. having electrical input and optical output; Flying-spot tubes for scanning purposes with luminescent screen
    • H01J31/15Image or pattern display tubes, i.e. having electrical input and optical output; Flying-spot tubes for scanning purposes with luminescent screen with ray or beam selectively directed to luminescent anode segments

Landscapes

  • Cathode-Ray Tubes And Fluorescent Screens For Display (AREA)

Abstract

PURPOSE:To realize observation of display from both sides by employing a transparent electrode as the anode of phosphor display panel and arranging a grid and anode respective to both sides of filament. CONSTITUTION:The hot electrons emitted from a filament 1 is controlled by grids 2, 2' and collides with phosphors 3, 3'. The phosphors 3, 3' are stuck on the anode electrodes 5, 5' formed on glass substrates 4, 4'. In order to form a vacuum vessel, the glass substrates 4, 4' are sealed by a selaling material through a side plate 8. Each electrode is extended to the outside by lead wires formed on the glass substrate and is connected to the lead 7, 7'. Luminous condition of phosphor can be observed through the anode electrode by forming it with transparent conductive film made of tin oxide indium oxide or with mesh type metal thin film etc.

Description

【発明の詳細な説明】 (1)発明の属する分野の説明 本発明は、フィラメント、グリッド、及び螢光体を付着
してなる陽極を有する螢光表示パネルにおいて、両面か
ら同一または異った表示を観察することが出来るパネル
を提供するものである。
DETAILED DESCRIPTION OF THE INVENTION (1) Description of the field to which the invention pertains The present invention relates to a fluorescent display panel having an anode formed of a filament, a grid, and a phosphor attached thereto. This provides a panel on which the images can be observed.

(2)従来技術の説明 螢光表示パネルは、一種の三極電子管であり、フィラメ
ントより発生する熱電子をグリッドにより制御し、螢光
体を所定の形状に付着させてなる陽極に選択的に衝突さ
せ、所要の形状の文字、数字、図形などを表示させるデ
ィスプレイディバイスである。見易い自発光のディスプ
レイディバイスであることから電卓、家電、車載、計測
などの用途に広く使用されている。第1図に従来の螢光
表示パネルの断面図を示す。フィラメント1は通電加熱
され熱電子を放射する。
(2) Description of the Prior Art A fluorescent display panel is a type of triode electron tube, in which thermoelectrons generated from a filament are controlled by a grid, and selectively applied to an anode made by attaching a fluorescent substance in a predetermined shape. It is a display device that displays characters, numbers, figures, etc. in the desired shape by colliding them. Since it is an easy-to-read self-luminous display device, it is widely used in applications such as calculators, home appliances, automobiles, and measurement. FIG. 1 shows a cross-sectional view of a conventional fluorescent display panel. The filament 1 is heated by electricity and emits thermoelectrons.

この熱電子はグリッド2により制御され螢光体3に衝突
し発光現象を呈する。螢光体3は、ガラス基板4上にシ
ルクスクリーンによりプリントされたグラファイトより
なる陽極電極5の上に付着されて(・る。ガラス基板上
には、カバーガラス6を取付け、接合部を低融点ガラス
によるシール材(図示せず)にてシールする。各電極は
ガラス基板4上にプリントされたリード線にて管外に引
出されリード7に接続される。
These thermoelectrons are controlled by the grid 2 and collide with the phosphor 3 to produce a light-emitting phenomenon. The phosphor 3 is attached to an anode electrode 5 made of graphite printed on a glass substrate 4 by silk screen. It is sealed with a glass sealant (not shown).Each electrode is drawn out of the tube by a lead wire printed on the glass substrate 4 and connected to a lead 7.

リード7に所定の電圧及び信号を入力することによ?、
、発光する螢光体部を選択し所要の表。
By inputting a predetermined voltage and signal to lead 7? ,
, select the phosphor part that emits light and fill out the required table.

示を得るがこ3れ11・カバ−ガラ子6−を 、−通ヒ
て観察される。しかしながら、″“表襟の“−・観察は
、一方の面からのみ可能であるため1、例えば小売用の
はかりなどの両側より表示を観察したい場合にはり螢光
表示パネルを2枚用いなければならず、機器の形状が太
き゛ くなる、コスト高になるなどの欠点があった。 
     ′      〜   ゛ □゛(3)  
門明の目的   ゛ 本願は1.こり費の欠点4i決するため1、両面、より
表示が観察できる螢光表示バネ尤を提供するものである
。、、− (4)発明の構成および作用の説明 第2図は本願の一実施例である。
This is observed by passing through the cover glass 6-. However, since observation of the front collar is only possible from one side, 1. For example, if you want to observe the display from both sides of a retail scale, you must use two fluorescent display panels. However, the disadvantages were that the shape of the device became thicker and the cost increased.
′ ~ ゛ □゛(3)
Purpose of the Gate ゛The present application is 1. In order to solve the drawback of stiffness and cost, the present invention provides a fluorescent display spring that allows the display to be more easily observed on both sides. ,,- (4) Explanation of structure and operation of the invention FIG. 2 shows an embodiment of the present application.

フィラメント1から放射された熱電子は、グリッド2,
2′により制御され、螢光体3,3′に衝突し発光する
。該螢光体3は、ガラス基板4.4′上に形成された陽
極電極5,5′上に付着されて(・る。真空容器を形成
するため、側、 板8を介してガラス基板4,4′をシ
ール材にてシールする。各電極は、ガラス基板上に形成
゛ さ゛れた゛す”−ド線にて管外に引出され、リード
7゜・ 7′に接続される。とぎにお(・て、@模型・
極を゛従来のようなグラファイトにかえ忙、酸化メン、
酸化インジウムなどの透明導電膜や網目状の金庫薄膜な
どにより形成する。このようにすることにより、螢光体
の発光をこの陽極電極を逆じて観察をすることが出来る
。即ち、従来は、カバーガラス面から、フィラメント、
グリッドを通じて−その下にある電、桁からの発光を観
察して(・だが、本実施例にお(・では、CRTのよう
にガラス基板4,4′を通じて、その内側の螢光0体の
・。
Thermionic electrons emitted from filament 1 are transferred to grid 2,
2' and collides with the fluorescent bodies 3 and 3' to emit light. The phosphor 3 is deposited on an anode electrode 5,5' formed on a glass substrate 4,4'. , 4' are sealed with a sealing material.Each electrode is drawn out of the tube by a lead wire formed on a glass substrate and connected to leads 7° and 7'.・Te, @model・
I am busy changing the poles to conventional graphite, oxidized men,
It is formed from a transparent conductive film such as indium oxide or a mesh-like safe thin film. By doing this, it is possible to observe the light emission of the phosphor by turning the anode electrode upside down. That is, conventionally, the filament,
Through the grid, we observe the light emitted from the electron beams underneath (・However, in this example (・・, we observe the fluorescence inside the grid through the glass substrates 4 and 4' like a CRT).・.

発光を観察するため、褒行きのない広視野角の表示を、
螢光表示パネルの両側より得ることが出来る。従って、
従来はかりやPOSなど、両側より観察するために2枚
の螢光表示パネルを利用して(・たものが、1枚の螢光
表示パネルで実現される。
In order to observe the luminescence, a wide viewing angle display with no reward is used.
It can be obtained from both sides of the fluorescent display panel. Therefore,
Conventional instruments such as scales and POS systems that use two fluorescent display panels for observation from both sides can now be realized with a single fluorescent display panel.

本願により螢光表示パネルは、その厚みにお(・ては、
第1図に示すような従来の構造の2倍以下、フィラメン
トの加熱のための所要電力ははy従来のものと同等とな
るため、使用にあたっての取付のための所要スペース、
消費電゛力の泌減にも寄与する。          
□また第1図に示す従来構造にお(・て、陽極電極5を
本願実施例のような透明電極で構成すると、表示を両面
から観、察することが出来地が、こNで構成される表示
は、面対称となって、鏡面を見るような関係になり、両
側より、正しく・情報を読みとる事は出来な(・。
According to the present application, the fluorescent display panel is
As shown in Figure 1, the power required to heat the filament is less than twice that of the conventional structure, and the power required for heating the filament is the same as that of the conventional structure, so the space required for installation during use is
It also contributes to reducing power consumption.
□In addition, in the conventional structure shown in FIG. The display is symmetrical, making it almost like looking at a mirror surface, making it impossible to read information correctly from both sides.

本実施例にお(・ては、電極5,5′のリードを7,7
′として個別に取り出して(・るが、これらのリードを
内部にて接続し両側より同一表示を得るようにも出来る
。     □
In this example, the leads of electrodes 5 and 5' are connected to 7 and 7.
', but you can also connect these leads internally to get the same display from both sides. □

【図面の簡単な説明】[Brief explanation of the drawing]

第1図は従来の螢光表示パネルを表わす断面図、第2図
は、本願の一実施例を表わす断面図である。 l・・・・・・フィラメント、2 、2”・・・・・・
グリッド、3.3′・・・・・螢光体、4,4′・・・
・・・ガラス基板、5.5′・・・・・・陽極電極、6
・・・・・・カバーガラス、7.7′・・・・・・リー
ド、8・・・・・・側板。 ノー゛−一、 第1図 第2図 3   5   4
FIG. 1 is a sectional view showing a conventional fluorescent display panel, and FIG. 2 is a sectional view showing an embodiment of the present application. l...Filament, 2, 2"...
Grid, 3.3'... Fluorescent material, 4,4'...
...Glass substrate, 5.5'...Anode electrode, 6
...Cover glass, 7.7'...Lead, 8...Side plate. No. 1, Figure 1, Figure 2, 3 5 4

Claims (1)

【特許請求の範囲】[Claims] フィラメントより放射された電子をグリッドにより加速
制御し、陽極上に形成した螢光体を発光せしめ所要の表
示を前記陽極側から観察できる一対の基板を前記フィラ
メントをはさんで両側に配設したことを特徴とした螢光
表示パネル。
A pair of substrates are arranged on both sides of the filament so that the electrons emitted from the filament can be accelerated and controlled by a grid, causing a phosphor formed on the anode to emit light, and a desired display can be observed from the anode side. A fluorescent display panel featuring
JP21975682A 1982-12-15 1982-12-15 Phosphor display panel for both-side observation Pending JPS59111239A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP21975682A JPS59111239A (en) 1982-12-15 1982-12-15 Phosphor display panel for both-side observation

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP21975682A JPS59111239A (en) 1982-12-15 1982-12-15 Phosphor display panel for both-side observation

Publications (1)

Publication Number Publication Date
JPS59111239A true JPS59111239A (en) 1984-06-27

Family

ID=16740503

Family Applications (1)

Application Number Title Priority Date Filing Date
JP21975682A Pending JPS59111239A (en) 1982-12-15 1982-12-15 Phosphor display panel for both-side observation

Country Status (1)

Country Link
JP (1) JPS59111239A (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4835447A (en) * 1986-03-26 1989-05-30 Nippondenso Co., Ltd. Fluorescent display tube drive apparatus
JPH02117654U (en) * 1988-11-17 1990-09-20
JPH0644001U (en) * 1992-11-19 1994-06-10 双葉電子工業株式会社 Double-sided fluorescent display tube
US5463276A (en) * 1992-11-19 1995-10-31 Futaba Corporation Double-faced vacuum fluorescent display
DE4345476C2 (en) * 1992-11-19 2002-03-07 Futaba Denshi Kogyo Kk Double-sided vacuum fluorescent display

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4835447A (en) * 1986-03-26 1989-05-30 Nippondenso Co., Ltd. Fluorescent display tube drive apparatus
JPH02117654U (en) * 1988-11-17 1990-09-20
JPH0644001U (en) * 1992-11-19 1994-06-10 双葉電子工業株式会社 Double-sided fluorescent display tube
US5463276A (en) * 1992-11-19 1995-10-31 Futaba Corporation Double-faced vacuum fluorescent display
DE4345476C2 (en) * 1992-11-19 2002-03-07 Futaba Denshi Kogyo Kk Double-sided vacuum fluorescent display

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