DE1194075B - Solid-state image converters or solid-state image amplifiers for reproducing or amplifying colored images - Google Patents
Solid-state image converters or solid-state image amplifiers for reproducing or amplifying colored imagesInfo
- Publication number
- DE1194075B DE1194075B DEST10881A DEST010881A DE1194075B DE 1194075 B DE1194075 B DE 1194075B DE ST10881 A DEST10881 A DE ST10881A DE ST010881 A DEST010881 A DE ST010881A DE 1194075 B DE1194075 B DE 1194075B
- Authority
- DE
- Germany
- Prior art keywords
- solid
- state image
- color
- layer
- reproducing
- 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
Links
- 239000011521 glass Substances 0.000 claims description 5
- 239000003086 colorant Substances 0.000 claims description 2
- 239000006089 photosensitive glass Substances 0.000 claims description 2
- 239000000126 substance Substances 0.000 claims description 2
- 230000002123 temporal effect Effects 0.000 claims description 2
- 239000011248 coating agent Substances 0.000 claims 1
- 238000000576 coating method Methods 0.000 claims 1
- 238000005401 electroluminescence Methods 0.000 claims 1
- 239000000463 material Substances 0.000 claims 1
- 230000003014 reinforcing effect Effects 0.000 claims 1
- 230000005284 excitation Effects 0.000 description 3
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 description 2
- 230000005855 radiation Effects 0.000 description 2
- LSIXBBPOJBJQHN-UHFFFAOYSA-N 2,3-Dimethylbicyclo[2.2.1]hept-2-ene Chemical compound C1CC2C(C)=C(C)C1C2 LSIXBBPOJBJQHN-UHFFFAOYSA-N 0.000 description 1
- WUPHOULIZUERAE-UHFFFAOYSA-N 3-(oxolan-2-yl)propanoic acid Chemical compound OC(=O)CCC1CCCO1 WUPHOULIZUERAE-UHFFFAOYSA-N 0.000 description 1
- 239000011230 binding agent Substances 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 229910052980 cadmium sulfide Inorganic materials 0.000 description 1
- 239000006059 cover glass Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000004065 semiconductor Substances 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
Classifications
-
- 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
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N9/00—Details of colour television systems
- H04N9/12—Picture reproducers
- H04N9/30—Picture reproducers using solid-state colour display devices
Description
Festkörperbildwandler bzw. Festkörperbildverstärker zur Wiedergabe oder Verstärkung farbiger Bilder Die Erfindung bezieht sich auf Festkörperbildwandler bzw. Festkörperbildverstärker zur Wiedergabe oder Verstärkung farbiger Bilder, bei dem sich zwischen zwei strahlungsdurchlässigen Elektroden eine photoleitende und eine elektrolumineszierende Schicht unter eventueller Zwischenfügung einer rückkopplungsverbindenden Schicht befinden.Solid-state image converter or solid-state image intensifier for reproduction or Enhancement of Colored Images The invention relates to solid state imagers or solid-state image intensifiers for reproducing or amplifying colored images which is located between two radiation-permeable electrodes a photoconductive and an electroluminescent layer with a possible interposition of a feedback-connecting layer Layer.
Für die übertragung farbiger Film- und Fernsehbilder sind viele Vorrichtungen bekanntgeworden. Besonders die Fernsehtechnik hat auf diesem Gebiet in den letzten Jahren gewaltige Fortschritte gemacht (vgl. die Berichte in »RCA-Review«, 12, 1951, Nr. 3, S. 445 bis 612; Do o rn-d e Vrij er, »Display Methods for Colour Television«, Zeitschrift der Niederländischen Radiologen, 20, 1955, S. 34 bis 48). Bei allen beschriebenen Vorrichtungen gelangen Kathodenstrahlröhren zur Verwendung, die entweder einen aus drei Farbkomponenten aufgebauten Leuchtschirm haben, bei dem die verschiedenen Farbkomponenten in geeigneter Weise angeregt werden, oder aber die drei Farbauszüge des zu übertragenden Bildes über drei verschiedene Wiedergaberöhren und halbdurchlässige Spiegel übereinander projiziert werden. In der vorliegenden Erfindung wird eine Einrichtung beschrieben, bei der außer einem Schwarzweißfernsehempfänger keine Vakuumröhre mehr benötigt wird und eine Projektion auf beliebig große Schirme möglich ist. Hierzu wird ein Bildverstärker verwendet, wie er in der deutschen Patentschrift 968 667 im Grundprinzip beschrieben ist, aber einige Merkmale aufweist, die Gegenstand dieser Erfindung sind. Der in der deutschen Patentschrift 968 667 beschriebene Festkörperwandler dient der Sichtbarmachung und Verstärkung von Bildern in einer Farbe im sichtbaren Gebiet des Lichtes. Er besteht aus mehreren Schichten in der Reihenfolge (A b b. 1): 1 leitehde transparente Schicht auf Glas, 2 Halbleiterschicht bzw. Schicht, die auf die einfallende Strahlung durch Änderung ihrer elektrischen Eigenschaften anspricht, 3 (gegebenenfalls) rückkopplungsverhindernde Schicht, 4 Leuchtstoffschicht; bestehend aus einem in ein Bindemittel eingegossenen elektromumineszenten Leuchtstoff, 5 Deckglasplatte mit leitender transparenter Schicht.Many devices have become known for the transmission of color film and television images. Television technology in particular has made tremendous progress in this area in recent years (cf. the reports in "RCA Review", 12, 1951, No. 3, pp. 445 to 612; Do o rn-d e Vrij er, " Display Methods for Color Television ", Journal of Dutch Radiologists, 20, 1955, pp. 34 to 48). In all of the devices described, cathode ray tubes are used which either have a fluorescent screen made up of three color components, in which the various color components are excited in a suitable manner, or the three color separations of the image to be transmitted are projected on top of one another via three different display tubes and semi-transparent mirrors. In the present invention, a device is described in which, apart from a black and white television receiver, no vacuum tube is required and projection onto screens of any size is possible. For this purpose, an image intensifier is used, as is described in the basic principle in German patent specification 968 667 , but has some features that are the subject of this invention. The solid-state converter described in German patent specification 968 667 is used to visualize and amplify images in one color in the visible area of light. It consists of several layers in the order (A b b. 1): 1 conductive transparent layer on glass, 2 semiconductor layer or layer that responds to the incident radiation by changing its electrical properties, 3 (if necessary) feedback-preventing layer, 4 fluorescent layer ; consisting of an electromuminescent phosphor cast in a binding agent, 5 cover glass plate with a conductive transparent layer.
Die Funktion eines derartigen Bildwandlers bzw. -verstärkers ist folgende: An 1 und 5 wird eine niederfrequente Wechselspannung zur Anregung des elektrolumineszenten Leuchtstoffes angelegt. Die photoleitende Schicht 2, die z. B. aus Cadmiumsulfid bestehen kann, hat im unbestrahlten Zustand einen sehr hohen Widerstand und verhindert damit die Anregung der Leuchtschicht 4. Wird die Schicht 2 aber von einer Strahlung geeigneter Wellenlänge getroffen, die den Widerstand der Schicht 2 erheblich ändert, dann ändert sich in diesem Gebiet auch die Feldstärke an der Schicht 4, so daß diese nun durch die niederfrequente Wechselspannung zur Lichtemission angeregt wird. Derartige Bildwandler sind z. B. von Diemer, Klasen und Santen in den »Philips' Research Reports« vom Dezember1955, S.401 bis 424, beschrieben worden.The function of such an image converter or intensifier is as follows: A low-frequency alternating voltage is applied to 1 and 5 to excite the electroluminescent phosphor. The photoconductive layer 2, e.g. B. can consist of cadmium sulfide, has a very high resistance in the non-irradiated state and thus prevents the excitation of the luminous layer 4. However, if the layer 2 is hit by radiation of a suitable wavelength that changes the resistance of the layer 2 significantly, then this changes Area also the field strength at the layer 4, so that this is now excited to emit light by the low-frequency alternating voltage. Such image converters are z. B. by Diemer, Klasen and Santen in the "Philips' Research Reports" of December 1955, pp. 401-424.
Um nun an Stelle des einfarbigen Schwarzweißbildes ein mehrfarbiges Bild darzustellen, ist der Bildwandler bzw. Bildverstärker gemäß der Erfindung so ausgebildet (Ab b. 2), daß die Elektrolumineszenzschicht 4 in periodisch wiederkehrende, gleich aufgebaute, parallel oder ähnlich angeordnete Streifen 14 aufgeteilt ist, die aus verschiedenfarbig elektrolumineszierenden Substanzen bestehen, und daß alle Streifen gleicher Emission über auf ihnen befindliche Elektroden 15b (Abb. 3) mit einer das zeitliche Auflösungsvermögen des Auges unterschreitenden Frequenz synchron mit der Projektion des Bildes des gleichen Farbinhalts an die Betriebsspannung des Wandlers bzw. Verstärkers angeschlossen sind.In order to present a multicolored image instead of the monochrome black-and-white image, the image converter or image intensifier according to the invention is designed ( Fig. 2) in such a way that the electroluminescent layer 4 is divided into periodically recurring, identically structured, parallel or similarly arranged strips 14, which consist of differently colored electroluminescent substances, and that all strips of the same emission via electrodes 15b on them (Fig. 3) with a frequency below the temporal resolution of the eye synchronously with the projection of the image of the same color content on the operating voltage of the converter or amplifier are connected.
Die Anregung der einzelnen Farbkomponenten erfolgt synchron mit der Projektion des Bildes des betreffenden Farbinhaltes. Die Glasplatte 15, welche die elektrolumineszierenden Farbstreifen 14 trägt, ist zweckmäßigerweise so ausgebildet, daß sie (a) aus einem photoempfindlichen Glas besteht, wie es z. B. von den Coming Glass Works als photoformglas entwickelt wurde, und daß auf photochemischem Wege V-förmige Vertiefungen 15 a eingeschnitten sind, auf die (b) eine leitende transparente Schicht aufgebracht ist, 15 b, und (c) der Grat der zusammenstoßenden V-förinigen Rillen weggeschliffen ist, so daß unter benachbarten V-förmigen Rollen keine elektrisch leitende Verbindung mehr besteht.The excitation of the individual color components takes place synchronously with the projection of the image of the relevant color content. The glass plate 15, which carries the electroluminescent colored strips 14, is expediently designed so that it (a) consists of a photosensitive glass, as it is, for. B. was developed by the Coming Glass Works as a photoform glass, and that photochemically V-shaped depressions 15 a are cut, on which (b) a conductive transparent layer is applied, 15 b, and (c) the ridge of the colliding V -förinigen grooves is ground away, so that there is no more electrically conductive connection under adjacent V-shaped rollers.
Die Darstellung der Bilder kann natürlich auch mittels dreier in geeigneten Farben emittierender elektrophotolumineszenter Leuchtstoffe geschehen, so daß die intensitätssteuernde Schicht 12 in Wegfall gelangen kann.The representation of the pictures can of course also be done by means of three in suitable Colors emitting electrophotoluminescent phosphors happen so that the intensity-controlling layer 12 can be omitted.
Durch entsprechende Steuerung der Anregung der verschiedenen Farbkomponenten der Schicht 14 ist es möglich, auch ein Farbnegativ als Farbpositiv darzustellen.By controlling the excitation of the various color components accordingly of the layer 14, it is also possible to display a color negative as a color positive.
Bei der Fernsehprojektion von Farbbildem ist es zweckmäßig, wenn die Bildzeilen nicht parallel zur Streifenrichtung in Schicht 14 verlaufen, um Farbfehler und Interferenzeffekte auszuschalten.When projecting color images on television, it is useful if the Image lines do not run parallel to the direction of the stripes in layer 14, in order to avoid color errors and turn off interference effects.
Claims (2)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DEST10881A DE1194075B (en) | 1956-02-21 | 1956-02-21 | Solid-state image converters or solid-state image amplifiers for reproducing or amplifying colored images |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DEST10881A DE1194075B (en) | 1956-02-21 | 1956-02-21 | Solid-state image converters or solid-state image amplifiers for reproducing or amplifying colored images |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DE1194075B true DE1194075B (en) | 1965-06-03 |
Family
ID=7455224
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DEST10881A Pending DE1194075B (en) | 1956-02-21 | 1956-02-21 | Solid-state image converters or solid-state image amplifiers for reproducing or amplifying colored images |
Country Status (1)
| Country | Link |
|---|---|
| DE (1) | DE1194075B (en) |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE968667C (en) * | 1952-04-04 | 1958-04-17 | Philips Nv | Imager |
-
1956
- 1956-02-21 DE DEST10881A patent/DE1194075B/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE968667C (en) * | 1952-04-04 | 1958-04-17 | Philips Nv | Imager |
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