DE2555312A1 - Optical display unit for CRT - has auxiliary films of electro-conducting, electro-luminescent and photo-dielectric materials - Google Patents
Optical display unit for CRT - has auxiliary films of electro-conducting, electro-luminescent and photo-dielectric materialsInfo
- Publication number
- DE2555312A1 DE2555312A1 DE19752555312 DE2555312A DE2555312A1 DE 2555312 A1 DE2555312 A1 DE 2555312A1 DE 19752555312 DE19752555312 DE 19752555312 DE 2555312 A DE2555312 A DE 2555312A DE 2555312 A1 DE2555312 A1 DE 2555312A1
- Authority
- DE
- Germany
- Prior art keywords
- layer
- electro
- luminescent
- film
- electrically 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.)
- Ceased
Links
- 230000003287 optical effect Effects 0.000 title abstract description 4
- 239000003989 dielectric material Substances 0.000 title description 3
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 claims description 15
- 230000000007 visual effect Effects 0.000 claims description 5
- 239000004020 conductor Substances 0.000 claims description 2
- 239000000126 substance Substances 0.000 claims description 2
- 238000010894 electron beam technology Methods 0.000 abstract description 5
- 238000004020 luminiscence type Methods 0.000 abstract 1
- 239000003990 capacitor Substances 0.000 description 3
- 230000007423 decrease Effects 0.000 description 1
- 230000000717 retained effect Effects 0.000 description 1
Classifications
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
- G09F13/00—Illuminated signs; Luminous advertising
- G09F13/20—Illuminated signs; Luminous advertising with luminescent surfaces or parts
- G09F13/22—Illuminated signs; Luminous advertising with luminescent surfaces or parts electroluminescent
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J29/00—Details of cathode-ray tubes or of electron-beam tubes of the types covered by group H01J31/00
- H01J29/02—Electrodes; Screens; Mounting, supporting, spacing or insulating thereof
- H01J29/10—Screens on or from which an image or pattern is formed, picked up, converted or stored
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J31/00—Cathode ray tubes; Electron beam tubes
- H01J31/08—Cathode ray tubes; Electron beam tubes having a screen on or from which an image or pattern is formed, picked up, converted, or stored
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L31/00—Semiconductor devices sensitive to infrared radiation, light, electromagnetic radiation of shorter wavelength or corpuscular radiation and specially adapted either for the conversion of the energy of such radiation into electrical energy or for the control of electrical energy by such radiation; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof
- H01L31/12—Semiconductor devices sensitive to infrared radiation, light, electromagnetic radiation of shorter wavelength or corpuscular radiation and specially adapted either for the conversion of the energy of such radiation into electrical energy or for the control of electrical energy by such radiation; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof structurally associated with, e.g. formed in or on a common substrate with, one or more electric light sources, e.g. electroluminescent light sources, and electrically or optically coupled thereto
- H01L31/14—Semiconductor devices sensitive to infrared radiation, light, electromagnetic radiation of shorter wavelength or corpuscular radiation and specially adapted either for the conversion of the energy of such radiation into electrical energy or for the control of electrical energy by such radiation; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof structurally associated with, e.g. formed in or on a common substrate with, one or more electric light sources, e.g. electroluminescent light sources, and electrically or optically coupled thereto the light source or sources being controlled by the semiconductor device sensitive to radiation, e.g. image converters, image amplifiers or image storage devices
- H01L31/141—Semiconductor devices sensitive to infrared radiation, light, electromagnetic radiation of shorter wavelength or corpuscular radiation and specially adapted either for the conversion of the energy of such radiation into electrical energy or for the control of electrical energy by such radiation; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof structurally associated with, e.g. formed in or on a common substrate with, one or more electric light sources, e.g. electroluminescent light sources, and electrically or optically coupled thereto the light source or sources being controlled by the semiconductor device sensitive to radiation, e.g. image converters, image amplifiers or image storage devices the semiconductor device sensitive to radiation being without a potential-jump barrier or surface barrier
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B33/00—Electroluminescent light sources
- H05B33/12—Light sources with substantially two-dimensional radiating surfaces
- H05B33/22—Light sources with substantially two-dimensional radiating surfaces characterised by the chemical or physical composition or the arrangement of auxiliary dielectric or reflective layers
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Condensed Matter Physics & Semiconductors (AREA)
- Electromagnetism (AREA)
- Computer Hardware Design (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Power Engineering (AREA)
- Theoretical Computer Science (AREA)
- Cathode-Ray Tubes And Fluorescent Screens For Display (AREA)
- Vessels, Lead-In Wires, Accessory Apparatuses For Cathode-Ray Tubes (AREA)
Abstract
Description
Optische AnzeigevorrichtungOptical display device
Die Erfindu'#g betrifft eine Vorrichtung zur optischen Anzeige von kurzzeitig optisch erkennbaren Informationen mit zwei an eine Spannungsquelle anschließbaren, elektrisch leitenden, transparenten Schichten, zwischen denen eine Schicht eines Elektrolumineszenz-Leuchtstoffs liegt.The invention relates to a device for the visual display of briefly visually recognizable information with two pieces of information that can be connected to a voltage source, electrically conductive, transparent layers, between which a layer of a Electroluminescent phosphor lies.
Optisch anzuzeigende Informationen sind häufig nur von sehr kurzer Dauer. Es ist aber wünschenswert, die Dauer der Informationsanzeige beliebig wahlbar zu machen. Eine Möglichkeit besteht darin, die Information elektronisch zu speichern und ihre optische Anzeige mit Hilfe des Speichers in rascher Folge zu wiederholen, so daß für den Betrachter ein stehendes Bild entsteht.Information to be displayed optically is often very short Duration. However, it is desirable that the duration of the information display can be selected as desired close. One possibility is to store the information electronically and to repeat their visual display with the help of the memory in quick succession, so that a still picture emerges for the viewer.
Diese Art der Anzeige erfordert aber einen erhöhten Aufwand für die Speicherelektronik.However, this type of display requires increased effort for the Storage electronics.
Der vorliegenden Erfindung liegt die Aufgabe zugrunde, eine Vorrichtung zur optischen Anzeige von kurzzeitig optisch erkennbaren Informationen anzugeben, bei der die optische Anzeige für beliebige Zeitdauer erhalten bleibt. Gelöst wird diese Aufgabe erfindungsgemäß dadurch, daß zwischen einer der elektrisch leitenden, transparenten Schichten und der Leuchtstoffschicht eine Schicht eines photodielektrischen oder photoelektrischen Stoffes liegt.The present invention is based on the object of a device for the visual display of briefly visually recognizable information, in which the visual display is retained for any period of time. Is resolved this object according to the invention in that between one of the electrically conductive, transparent layers and the phosphor layer a layer of a photo dielectric or photoelectric substance.
bzw. photoelektrischen Zwischen der photodielektrischen/und der Leuchtstoffschicht kann eine zusätzliche lichtdurchlässige Schicht vorgesehen sein, die einen relativ kleinen kapazitiven Widerstand darstellt. Als Träger der elektrisch leitenden, transparenten Schichten und der dazwischen liegenden Schichten kann die innere Oberfläche des die Anzeigefläche bildenden Teiles des Röhrenkolbens einer Elektronenstrahlröhre vorgesehen sein. or photoelectric between the photo dielectric and the phosphor layer an additional light-permeable layer can be provided, which has a relatively represents small capacitive resistance. As a carrier of the electrically conductive, transparent Layers and the layers in between can be the inner surface of the the part of the tube piston of a cathode ray tube which forms the display area be provided.
In diesem Fall ist die Außenseite der inneren transparenten Schicht mit einer weiteren Leuchtstoffschicht versehen, welche bei Auftreffen des in der Röhre erzeugten Elektronenstrahls die kurzzeitig optisch erkennbare Information aussendet. Der die Anzeigefläche bildende Teil des Röhrenkolbens besteht zweckmäßigerweise aus leitfähigem Material und bildet gleichzeitig eine der elektrisch leitenden, transparenten Schichten.In this case the outside is the inner transparent layer provided with a further phosphor layer which, when the in the The electron beam generated by the tube provides the briefly optically recognizable information sends out. The part of the tube piston which forms the display surface is expediently made made of conductive material and at the same time forms one of the electrically conductive, transparent layers.
Durch die Erfindung wird der Vorteil erzielt, daß kurzzeitig auftretende Informationen beliebig lange angezeigt werden können.The invention has the advantage that briefly occurring Information can be displayed for as long as you like.
Die Erfindung wird anhand der Zeichnungen erläutert. Die Figur 1 zeigt in schematischer Darstellung eine erfindungsgemäße Vorrichtung, die Figur 2 einen Querschnitt durch eine Elektronenröhre, auf deren Bildschirm die erfindungsgemäße Vorrichtung aufgebaut ist. Die Darstellung der Schichten in den Zeichnungen ist nicht maßstabgerecht.The invention is explained with reference to the drawings. Figure 1 shows a schematic representation of a device according to the invention, FIG Cross section through an electron tube, on the screen of which the invention Device is constructed. The representation of the layers in the drawings is not to scale.
In Figur 1 sind die elektrisch leitenden, transparenten Schichten mit 1 und 4 bezeichnet. Sie sind über den Schalter 6 mit der Spannungsquelle 5 verbunden. Zwischen den schichten i und 4 liegen eine Schicht 3 eines Elektrolumineszenz-Leuchtstoffs und eine Schicht 2 eines photodielektrischen Stoffes.In Figure 1 are the electrically conductive, transparent layers denoted by 1 and 4. They are connected to the voltage source 5 via the switch 6. Between layers i and 4 there is a layer 3 of an electroluminescent phosphor and a layer 2 of photo dielectric material.
Die Vorrichtung ist betriebsbereit, wenn der Schalter 6 geschlossen ist. Die photodielektrische Schicht, deren Dielektrizitätskonstante im unbeleuchteten Zustand sehr hoch ist, verhindert, daß der Elektrolumineszenz-Leuchtstoff zur Lichtemission angeregt wird. Erst wenn eine optisch erkennbare Information in Form von Licht (Pfeil 7) auf die photodielektrische Schicht trifft, wird deren Dielektrizitäts-Konstante sowe#it herabgesetzt, daß die an den transparenten Schichten anliegende Spannung zur Anregung der Lichtemission im Leuchtstöff -ausr.icht.The device is ready for operation when the switch 6 is closed is. The photo dielectric layer, whose dielectric constant in the unlit State is very high, prevents the electroluminescent phosphor from emitting light is stimulated. Only when optically recognizable information in the form of light (arrow 7) hits the photodielectric layer, its dielectric constant becomes so that the voltage applied to the transparent layers is reduced to stimulate the light emission in the luminescent alignment light.
Die Lichtemission aus der Leuchtstoffschicht ist vom Betrachter her erkennbar. Ein Teil des emittierten Lichtes fällt auf die photodielektrische Schicht und hält deren Dielektrizitätskonstante auf den kleinen, für die weitere Lichtemission erforderlichen Wert. Die Anzeige verschwindet erst, wenn der Schalter 6 geöffnet wird.The light emission from the phosphor layer is from the viewer recognizable. Part of the emitted light falls on the photodielectric layer and keeps their dielectric constant at the small one, for further light emission required value. The display only disappears when switch 6 is opened will.
Anstelle der photodielektrischen Schicht kann erfindungsgemäß auch eine photoelektrische Schicht vorgesehen sein, deren elektrischer Widerstand beim Auftreffen von Licht abnimmt. Auch dabei wird die an der Leuchtstoffschicht anliegende Spannung so erhöht, daß sie zur Lichtemission angeregt wird. Die optische Rückkopplung bewirkt, daß die Lichtemission erst endet, wenn die Spannung abgeschaltet wird.Instead of the photodielectric layer, it is also possible according to the invention a photoelectric layer may be provided, the electrical resistance of which when Light impingement decreases. In this case, too, the one lying against the phosphor layer Voltage increased so that it is excited to emit light. The optical feedback causes the light emission to end only when the voltage is switched off.
Die Vorrichtung, bestehend aus den beiden elektrich leitenden, transparenten Schichten und der dazwischen liegenden Leuchtstoffschicht, stellt einen Elektrolumineszenz-Leuchtkondensator dar. Derartige Kondensatoren sind für die Verwendung als elektrooptische Wandler allgemein bekannt. Im vorliegenden Fall wird der Leuchtkondensator jedoch als Speicher verwendet.The device, consisting of the two electrically conductive, transparent ones Layers and the phosphor layer lying between them, constitutes an electroluminescent luminous capacitor Such capacitors are for use as electro-optical converters well known. In the present case, however, the luminous capacitor is used as a memory used.
In Figur 2 ist die erfindungsgemäße Vorrichtung auf der Innenseite eines Röhrenkolbens 9 einer Elektronenstrablröhre angebracht. Die Anzeigefläche 10 der Elektronenstrahlröhre bildet dabei den Träger für die Schichten. Die Anzeigefläche des Röhrenkilbens ist zunachst mit einer leitenden, transparenten Schicht bedeckt, die ihrerseits mit einer Schicht 3 eines Elektrolumineszenz-Leuchtstoffs und einer Schicht 2 eines photodielektrischen Stoffes beschichtet ist. Darauf folgt eine weitere elektrisch leitende, transparente Schicht 1, deren Außenseite eine weitere Leuchtstoffschicht 8 trägt. Trifft nun der Elektronenstrahl, der in Abhängigkeit von der anzuzeigenden Information abgelenkt wird, auf die Le whtgtoffchicht 8, so wird diese zur Lichtemission angeregt. Das austretende Licht stellt die kurzzeitig optisch erkennbare Information dar, die mit Hilfe der darunter liegenden Anordnung gespeichert wird, wobei der Funktionsablauf derselbe ist, wie bei der Ausführungsform nach Figur 1. Wird der Elektronenstrahl abgeschaltet, so erlischt das Leuchten der Leuchtstoffschicht 8, die Anzeige bleibt jedoch für den Betrachter weiter erhalten, bis er sie zu einem beliebigen Zeitpunkt abschaltet.In Figure 2, the device according to the invention is on the inside a tube piston 9 of an electron beam tube attached. The display area 10 of the cathode ray tube forms the support for the layers. The display area the tube bulb is initially covered with a conductive, transparent layer, in turn with a layer 3 of an electroluminescent phosphor and a Layer 2 of a photo dielectric material is coated. This is followed by another electrically conductive, transparent layer 1, the outside of which is a further phosphor layer 8 carries. Now hits the electron beam, which depends on the to be displayed Information is diverted onto the Le whtgtoffchicht 8, so will stimulated these to emit light. The emerging light makes the short-term optically identifiable information is stored with the help of the underlying arrangement is, the functional sequence is the same as in the embodiment according to FIG 1. If the electron beam is switched off, the luminescent layer goes out 8, however, the display continues to be available to the viewer until he or she comes to a switches off at any time.
5 Seiten Beschreibung 4 Patent ansprüche Le e r s e i t e5 pages description 4 patent claims Le e r s e i t e
Claims (4)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19752555312 DE2555312A1 (en) | 1975-12-09 | 1975-12-09 | Optical display unit for CRT - has auxiliary films of electro-conducting, electro-luminescent and photo-dielectric materials |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19752555312 DE2555312A1 (en) | 1975-12-09 | 1975-12-09 | Optical display unit for CRT - has auxiliary films of electro-conducting, electro-luminescent and photo-dielectric materials |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DE2555312A1 true DE2555312A1 (en) | 1977-06-23 |
Family
ID=5963889
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DE19752555312 Ceased DE2555312A1 (en) | 1975-12-09 | 1975-12-09 | Optical display unit for CRT - has auxiliary films of electro-conducting, electro-luminescent and photo-dielectric materials |
Country Status (1)
| Country | Link |
|---|---|
| DE (1) | DE2555312A1 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2431184A1 (en) * | 1978-07-10 | 1980-02-08 | Tektronix Inc | ELECTRO-LUMINESCENT STORAGE TUBE WITH CATHODE RAYS |
| DE4430907B4 (en) * | 1993-12-09 | 2009-06-25 | Key Plastics Inc., Novi | Three-dimensionally shaped electroluminescent display and method for its production |
-
1975
- 1975-12-09 DE DE19752555312 patent/DE2555312A1/en not_active Ceased
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2431184A1 (en) * | 1978-07-10 | 1980-02-08 | Tektronix Inc | ELECTRO-LUMINESCENT STORAGE TUBE WITH CATHODE RAYS |
| DE4430907B4 (en) * | 1993-12-09 | 2009-06-25 | Key Plastics Inc., Novi | Three-dimensionally shaped electroluminescent display and method for its production |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| OF | Willingness to grant licences before publication of examined application | ||
| OB | Request for examination as to novelty | ||
| OC | Search report available | ||
| 8110 | Request for examination paragraph 44 | ||
| 8131 | Rejection |