EP1209715A2 - Front panel for shielding a flat plasma display screen - Google Patents

Front panel for shielding a flat plasma display screen Download PDF

Info

Publication number
EP1209715A2
EP1209715A2 EP01126929A EP01126929A EP1209715A2 EP 1209715 A2 EP1209715 A2 EP 1209715A2 EP 01126929 A EP01126929 A EP 01126929A EP 01126929 A EP01126929 A EP 01126929A EP 1209715 A2 EP1209715 A2 EP 1209715A2
Authority
EP
European Patent Office
Prior art keywords
lenses
screen
matrix
cover plate
plasma
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.)
Withdrawn
Application number
EP01126929A
Other languages
German (de)
French (fr)
Other versions
EP1209715A3 (en
Inventor
Udo Fischbeck
Markus Friebe
Juergen Proell
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.)
Grundig Multimedia BV
Original Assignee
Grundig AG
Grundig Multimedia BV
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 Grundig AG, Grundig Multimedia BV filed Critical Grundig AG
Publication of EP1209715A2 publication Critical patent/EP1209715A2/en
Publication of EP1209715A3 publication Critical patent/EP1209715A3/en
Withdrawn legal-status Critical Current

Links

Images

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J11/00—Gas-filled discharge tubes with alternating current induction of the discharge, e.g. alternating current plasma display panels [AC-PDP]; Gas-filled discharge tubes without any main electrode inside the vessel; Gas-filled discharge tubes with at least one main electrode outside the vessel
    • H01J11/10—AC-PDPs with at least one main electrode being out of contact with the plasma
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J11/00—Gas-filled discharge tubes with alternating current induction of the discharge, e.g. alternating current plasma display panels [AC-PDP]; Gas-filled discharge tubes without any main electrode inside the vessel; Gas-filled discharge tubes with at least one main electrode outside the vessel
    • H01J11/20—Constructional details
    • H01J11/34—Vessels, containers or parts thereof, e.g. substrates
    • H01J11/44—Optical arrangements or shielding arrangements, e.g. filters, black matrices, light reflecting means or electromagnetic shielding means
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J2211/00—Plasma display panels with alternate current induction of the discharge, e.g. AC-PDPs
    • H01J2211/20—Constructional details
    • H01J2211/34—Vessels, containers or parts thereof, e.g. substrates
    • H01J2211/44—Optical arrangements or shielding arrangements, e.g. filters or lenses
    • H01J2211/446—Electromagnetic shielding means; Antistatic means

Definitions

  • the invention relates to a windshield according to the preamble of Claim 1.
  • Plasma flatscreens have a higher light intensity Generation of the pixels noble gas-filled devices are provided.
  • the Devices radiate colored, caused by UV discharges in the plasma Light that is generated by the associated phosphors.
  • PDP is usually provided with a front screen, which is a means of shielding contains. It can e.g. around one worked into the windscreen Act wire mesh. The wire mesh is sometimes in operation of the PDP visible. It disturbs the picture impression.
  • the object of the invention is to overcome the disadvantages of the prior art remove.
  • it is intended to be a front screen for a flat screen or a flat screen with improved shielding and image quality become.
  • At least one side of the Front window has a lens matrix formed from convex lenses.
  • the opposite sides of the windshield can each one Have lens matrix formed from convex lenses, so that one from biconvex Lenses existing lens matrix is formed.
  • This can reduce the picture quality a flat screen provided with the windscreen according to the invention, especially a plasma flat screen, again improved become.
  • the lenses expediently have a substantially rectangular shape Outline on, whereby they can be arranged so that their outline in the essentially with the grid-like electrically conductive structure.
  • the lenses can be curved in cross section. But you can also use the Have the shape of a pyramid. Through the proposed training and Arranging the lenses will make the optical impairments special kept low.
  • the grid-like electrically conductive structure can, preferably from in the Windshield embedded, wires are formed. But it can also e.g. made from printed conductors printed on the side of the windscreen his.
  • the windshield according to the invention is attached over a cover plate of a plasma flat screen. It can is a plasma flat screen known per se.
  • the cover plate expediently covers one of a large number of plasma-filled ones Devices for generating colored light pixel matrix from and the grid-like structure of the windshield is expedient arranged so that it essentially coincides with the pixel matrix. That the lattice-like structure is arranged so that it matches the outline of the plasma-filled devices.
  • the lens matrix is advantageously arranged in relation to the pixel matrix in such a way that that light passing through the windshield is so scattered is that the grid-like structure when operating the plasma flat screen in significantly outshone and is therefore no longer visible.
  • the windshield is in one Piece made with the cover plate.
  • training expediently a convex lens matrix on that facing away from the devices Provided outside.
  • the inside facing the devices the one-piece front and cover plate can be flat and be tightly connected to the devices.
  • the front and cover glass are made in one piece as a biconvex lens matrix is. In this case, the convex lenses bulge into the devices.
  • reference numeral 1 generally denotes a pixel matrix designated.
  • the pixel matrix 1 is formed from a multiplicity of grid-like ones Devices 2 for generating colored light, namely from red, green and blue light. The picture is created by subtractive color mixing of the colored light emitted by the devices 2.
  • the devices 2 are in columns S1, S2 and S3 arranged side by side.
  • Each column S1, S2 or S3 consists of devices 2, which each produce light of the same color.
  • the devices 2 are arranged behind a cover plate 3 which e.g. made of glass can be.
  • a cover plate 4 is superimposed on the cover plate 3.
  • the front plate 4 can e.g. be attached to the cover plate 3 by means of an adhesive.
  • a wire mesh 5 embedded in the Windscreen 4
  • suitable electrically conductive structures can be provided.
  • it can a lattice-like structure in the form of conductor tracks can be provided, which on an underside of the front pane facing the cover pane 3 4 are applied. As can be seen from FIGS. 1 and 3, this coincides Wire mesh 5 with the outlines of the devices 2.
  • the front screen has 4 on their outer side facing away from the cover plate 3 a large number convex lenses 6.
  • the convex lenses 6 have - as from FIGS. 2 and 4 can be seen - an essentially square outline.
  • the essentially square outline of the convex lenses 6 coincides with that Wire mesh 5.
  • the front screen has 4 biconvex lenses 7, the outline of which is also essentially is square.
  • the outline of the biconvex lenses coincides 7 with the wire mesh 5.
  • the lenses are each arc-shaped educated.
  • the cover plate 3 is flat in the exemplary embodiments described educated. However, it may also be that the cover plate 3 and e.g. the Front screen 4 shown in Fig. 1 are made in one piece. With regard on a one-piece design of the cover 3 and the front screen 4 it is also possible, the one shown in FIG. 3 in the form of a biconvex lens matrix trained front panel 4 to connect tightly with the devices 2. In this case, the biconvex lenses 7 bulge into the devices 2 into it (not shown here).
  • the one-piece design of the cover 3 with the front window 4 simplifies the manufacture of the plasma flat screen.
  • the manufacture of the windshield 4 according to the invention or the cover 3 with The windshield 4 is made in one piece according to common methods.
  • the lens matrix can be in the viscous state of the glass using suitable tools be imprinted. It is also possible by means of a stick-like Tool-like recesses in the viscose glass so that so that lens-like structures are created. It is also conceivable that to provide a corrugation for the wires used to manufacture the grid. When the wires are inserted into the viscose glass, their curl causes the formation a lens matrix.
  • the function of the windshield 4 according to the invention is as follows.
  • the colored light emitted by the devices 2 is by the convex 6 or deflected by the biconvex lenses 7 such that the wire mesh 5 is outshone on the light exit side. That scattered over the wire mesh 5 Subtractive color mixing then turns light into the real thing Image implemented.
  • the windshield 4 according to the invention is particularly suitable for shielding known PDPs. However, it is also conceivable for such a windshield 4 to use for flat screens, the pixels on others Generated way.

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Plasma & Fusion (AREA)
  • Electromagnetism (AREA)
  • Devices For Indicating Variable Information By Combining Individual Elements (AREA)
  • Shielding Devices Or Components To Electric Or Magnetic Fields (AREA)

Abstract

Die Erfindung betrifft eine Frontscheibe zur Abschirmung eines Plasma-Flachbildschirms mit einer gitterartigen elektrisch leitenden Struktur. Zur Verbesserung der Abschirmung sowie der Bildqualität ist erfindungsgemäß vorgesehen, daß zumindest eine Seite der Frontscheibe eine aus konvexen Linsen gebildete Linsenmatrix aufweist. <IMAGE>The invention relates to a front screen for shielding a plasma flat screen with a grid-like electrically conductive structure. To improve the shielding and the image quality, it is provided according to the invention that at least one side of the windshield has a lens matrix formed from convex lenses. <IMAGE>

Description

Die Erfindung betrifft eine Frontscheibe nach dem Oberbegriff des Anspruchs 1.The invention relates to a windshield according to the preamble of Claim 1.

Nach dem Stand der Technik sind Flachbildschirme allgemein bekannt. Die Erzeugung der zum Bildaufbau erforderlichen Bildpunkte kann dabei z.B. durch eine Zustandsänderung von Flüssigkristallen erfolgen. Es handelt sich dann um sogenannte Flüßigkristall-Flachbildschirme oder LCDs (= liquid crystal displays). LCDs sind nicht besonders lichtstark. Es ist erforderlich, sie mittels einer zusätzlichen Lichtquelle zu hinterleuchten.Flat screens are generally known in the prior art. The Generation of the pixels required for image construction can be done e.g. by a change in the state of liquid crystals. Then it is about So-called liquid crystal flat screens or LCDs (= liquid crystal displays). LCDs are not particularly bright. It is necessary to use a backlight additional light source.

Eine höhere Lichtstärke weisen Plasma-Flachbildschirme auf, bei denen zur Erzeugung der Bildpunkte edelgasgefüllte Vorrichtungen vorgesehen sind. Die Vorrichtungen strahlen, verursacht durch UV-Entladungen im Plasma, farbiges Licht ab, welches durch die dazugehörigen Leuchtstoffe erzeugt wird. Plasma-Flachbildschirme oder PDPs (= plasma display panels) verursachen beim Betrieb eine elektromagnetische Störstrahlung. Um dem entgegenzuwirken, sind PDP üblicherweise mit einer Frontscheibe versehen, die ein Mittel zur Abschirmung enthält. Es kann sich dabei z.B. um ein in die Frontscheibe eingearbeitetes Drahtgitter handeln. Das Drahtgitter ist beim Betrieb des PDP mitunter sichtbar. Es stört den Bildeindruck.Plasma flatscreens have a higher light intensity Generation of the pixels noble gas-filled devices are provided. The Devices radiate colored, caused by UV discharges in the plasma Light that is generated by the associated phosphors. Plasma flat panel displays or PDPs (= plasma display panels) cause during operation electromagnetic interference. To counteract this, are PDP is usually provided with a front screen, which is a means of shielding contains. It can e.g. around one worked into the windscreen Act wire mesh. The wire mesh is sometimes in operation of the PDP visible. It disturbs the picture impression.

Aufgabe der Erfindung ist es, die Nachteile nach dem Stand der Technik zu beseitigen. Es sollen insbesondere eine Frontscheibe für einen Flachbildschirm bzw. ein Flachbildschirm mit verbesserter Abschirmung und Bildqualität angegeben werden. The object of the invention is to overcome the disadvantages of the prior art remove. In particular, it is intended to be a front screen for a flat screen or a flat screen with improved shielding and image quality become.

Diese Aufgabe wird durch die Merkmale des Anspruchs 1 gelöst. Zweckmäßige Ausgestaltungen der Erfindung ergeben sich aus den Merkmalen der Ansprüche 2 bis 9.This object is solved by the features of claim 1. expedient Embodiments of the invention result from the features of the claims 2 to 9.

Nach Maßgabe der Erfindung ist vorgesehen, daß zumindest eine Seite der Frontscheibe eine aus konvexen Linsen gebildete Linsenmatrix aufweist. Dadurch wird in vorteilhafter Weise erreicht, daß die an der Frontscheibe vorgesehene gitterartige elektrisch leitende Struktur beim Betrieb des Flachbildschirms überstrahlt und damit kaum mehr sichtbar ist. Die Abschirmungswirkung kann gleichzeitig verbessert werden.According to the invention it is provided that at least one side of the Front window has a lens matrix formed from convex lenses. Thereby is achieved in an advantageous manner that the provided on the windshield grid-like electrically conductive structure when operating the flat screen outshines and is hardly visible anymore. The shielding effect can be improved at the same time.

Die einander gegenüberliegenden Seiten der Frontscheibe können jeweils eine aus konvexen Linsen gebildete Linsenmatrix aufweisen, so daß eine aus bikonvexen Linsen bestehende Linsenmatrix gebildet ist. Dadurch kann die Bildqualität eines mit der erfindungsgemäßen Frontscheibe versehenen Flachbildschirms, insbesondere eines Plasma-Flachbildschirms, nochmals verbessert werden. Die Linsen weisen zweckmäßigerweise einen im wesentlichen rechteckigen Umriß auf, wobei sie so angeordnet sein können, daß sich ihr Umriß im wesentlichen mit der gitterartigen elektrisch leitenden Struktur deckt. Die Linsen können im Querschnitt gebogen ausgebildet sein. Sie können aber auch die Form einer Pyramide aufweisen. Durch die vorgeschlagene Ausbildung und Anordnung der Linsen werden die optischen Beeinträchtigungen besonders gering gehalten.The opposite sides of the windshield can each one Have lens matrix formed from convex lenses, so that one from biconvex Lenses existing lens matrix is formed. This can reduce the picture quality a flat screen provided with the windscreen according to the invention, especially a plasma flat screen, again improved become. The lenses expediently have a substantially rectangular shape Outline on, whereby they can be arranged so that their outline in the essentially with the grid-like electrically conductive structure. The lenses can be curved in cross section. But you can also use the Have the shape of a pyramid. Through the proposed training and Arranging the lenses will make the optical impairments special kept low.

Die gitterartige elektrisch leitende Struktur kann, vorzugsweise aus in die Frontscheibe eingelassenen, Drähten gebildet sein. Sie kann aber auch z.B. aus auf einer an der Seite der Frontscheibe aufgedruckten Leitbahnen hergestellt sein.The grid-like electrically conductive structure can, preferably from in the Windshield embedded, wires are formed. But it can also e.g. made from printed conductors printed on the side of the windscreen his.

Nach weiterer Maßgabe der Erfindung ist die erfindungsgemäße Frontscheibe angebracht über einer Abdeckscheibe eines Plasma-Flachbildschirms. Es kann sich dabei um einen an sich bekannten Plasma-Flachbildschirm handeln. Die Abdeckscheibe deckt zweckmäßigerweise eine aus einer Vielzahl von plasmagefüllten Vorrichtungen zur Erzeugung von farbigen Licht gebildete Bildpunktmatrix ab und die gitterartige Struktur der Frontscheibe ist zweckmäßigerweise so angeordnet, daß sie sich im wesentlichen mit der Bildpunktmatrix deckt. D.h. die gitterartige Struktur ist so angeordnet, daß sie sich mit den Umrissen der plasmagefüllten Vorrichtungen deckt.According to a further requirement of the invention, the windshield according to the invention is attached over a cover plate of a plasma flat screen. It can is a plasma flat screen known per se. The The cover plate expediently covers one of a large number of plasma-filled ones Devices for generating colored light pixel matrix from and the grid-like structure of the windshield is expedient arranged so that it essentially coincides with the pixel matrix. That the lattice-like structure is arranged so that it matches the outline of the plasma-filled devices.

Die Linsenmatrix ist vorteilhafterweise in bezug zur Bildpunktmatrix so angeordnet, daß durch die Frontscheibe hindurchtretendes Licht derart gestreut wird, daß die gitterartige Struktur beim Betrieb des Plasma-Flachbildschirms im wesentlichen überstrahlt und damit nicht mehr sichtbar ist.The lens matrix is advantageously arranged in relation to the pixel matrix in such a way that that light passing through the windshield is so scattered is that the grid-like structure when operating the plasma flat screen in significantly outshone and is therefore no longer visible.

Nach einer besonders vorteilhaften Ausgestaltung ist die Frontscheibe in einem Stück mit der Abdeckscheibe hergestellt. In der einstückigen Ausbildung ist zweckmäßigerweise eine konvexe Linsenmatrix auf der der Vorrichtungen abgewandten Außenseite vorgesehen. Die den Vorrichtungen zugewandte Innenseite der einstückigen Front- und Abdeckscheibe kann plan ausgebildet und dicht mit den Vorrichtungen verbunden sein. Es ist aber auch denkbar, daß die Front- und Abdeckscheibe einstückig als bikonvexe Linsenmatrix ausgebildet ist. Die konvexen Linsen wölben sich in diesem Fall in die Vorrichtungen hinein.According to a particularly advantageous embodiment, the windshield is in one Piece made with the cover plate. Is in one piece training expediently a convex lens matrix on that facing away from the devices Provided outside. The inside facing the devices the one-piece front and cover plate can be flat and be tightly connected to the devices. But it is also conceivable that the The front and cover glass are made in one piece as a biconvex lens matrix is. In this case, the convex lenses bulge into the devices.

Nachfolgend werden Ausführungsbeispiele der Erfindung anhand der Zeichnung näher erläutert. Es zeigen:

Fig. 1
eine schematische Querschnittsansicht durch einen ersten Plasma-Flachbildschirm,
Fig. 2
eine Draufsicht nach Fig. 1,
Fig. 3
eine schematische Querschnittsansicht durch einen zweiten Plasma-Flachbildschirm und
Fig. 4
eine Draufsicht auf eine Linse.
Exemplary embodiments of the invention are explained in more detail below with reference to the drawing. Show it:
Fig. 1
2 shows a schematic cross-sectional view through a first plasma flat screen,
Fig. 2
2 shows a top view according to FIG. 1,
Fig. 3
a schematic cross-sectional view through a second plasma flat screen and
Fig. 4
a top view of a lens.

In den Fig. 1 bis 3 ist mit dem Bezugszeichen 1 allgemein eine Bildpunktmatrix bezeichnet. Die Bildpunktmatrix 1 ist gebildet aus einer Vielzahl rasterartig angeordneter Vorrichtungen 2 zur Erzeugung von farbigem Licht, nämlich von rotem, grünem und blauem Licht. Das Bild wird durch subtraktive Farbmischung des von den Vorrichtungen 2 abgestrahlten farbigen Lichts hergestellt.1 to 3, reference numeral 1 generally denotes a pixel matrix designated. The pixel matrix 1 is formed from a multiplicity of grid-like ones Devices 2 for generating colored light, namely from red, green and blue light. The picture is created by subtractive color mixing of the colored light emitted by the devices 2.

Wie aus Fig. 2 erkennbar ist, sind die Vorrichtungen 2 in Spalten S1, S2 und S3 nebeneinander angeordnet. Jede Spalte S1, S2 oder S3 besteht aus Vorrichtungen 2, welche jeweils Licht derselben Farbe erzeugen. Die Vorrichtungen 2 sind hinter einer Abdeckscheibe 3 angeordnet, die z.B. aus Glas hergestellt sein kann.As can be seen from FIG. 2, the devices 2 are in columns S1, S2 and S3 arranged side by side. Each column S1, S2 or S3 consists of devices 2, which each produce light of the same color. The devices 2 are arranged behind a cover plate 3 which e.g. made of glass can be.

Die Abdeckscheibe 3 ist überlagert von einer Frontscheibe 4. Die Frontscheibe 4 kann z.B. mittels eines Klebers an der Abdeckscheibe 3 befestigt sein. In die Frontscheibe 4 ist ein Drahtgitter 5 eingelagert. Statt des Drahtgitters 5 können selbstverständlich auch andere zur Abschirmung elektromagnetischer Strahlung geeignete elektrisch leitende Strukturen vorgesehen sein. Es kann insbesondere eine gitterartige Struktur in Form von Leiterbahnen vorgesehen sein, welche auf einer der Abdeckscheibe 3 zugewandten Unterseite der Frontscheibe 4 aufgebracht sind. Wie aus den Fig. 1 und 3 ersichtlich ist, deckt sich das Drahtgitter 5 mit den Umrissen der Vorrichtungen 2.A cover plate 4 is superimposed on the cover plate 3. The front plate 4 can e.g. be attached to the cover plate 3 by means of an adhesive. In the Windscreen 4 is a wire mesh 5 embedded. Instead of the wire mesh 5 can of course, others to shield electromagnetic radiation suitable electrically conductive structures can be provided. In particular, it can a lattice-like structure in the form of conductor tracks can be provided, which on an underside of the front pane facing the cover pane 3 4 are applied. As can be seen from FIGS. 1 and 3, this coincides Wire mesh 5 with the outlines of the devices 2.

Bei dem in Fig. 1 gezeigten ersten Plasma-Flachbildschirm weist die Frontscheibe 4 an ihrer der Abdeckscheibe 3 abgewandten Außenseite eine Vielzahl konvexer Linsen 6 auf. Die konvexen Linsen 6 weisen - wie aus den Fig. 2 und 4 ersichtlich ist - einen im wesentlichen quadratischen Umriß auf. Der im wesentlichen quadratische Umriß der konvexen Linsen 6 deckt sich mit dem Drahtgitter 5.In the first plasma flat screen shown in FIG. 1, the front screen has 4 on their outer side facing away from the cover plate 3 a large number convex lenses 6. The convex lenses 6 have - as from FIGS. 2 and 4 can be seen - an essentially square outline. The essentially square outline of the convex lenses 6 coincides with that Wire mesh 5.

Bei dem in Fig. 3 gezeigten zweiten Plasma-Flachbildschirm weist die Frontscheibe 4 bikonvexe Linsen 7 auf, deren Umriß ebenfalls im wesentlichen quadratisch ausgebildet ist. Auch hier deckt sich der Umriß der bikonvexen Linsen 7 mit dem Drahtgitter 5. Im Querschnitt sind die Linsen jeweils bogenförmig ausgebildet.In the second plasma flat screen shown in FIG. 3, the front screen has 4 biconvex lenses 7, the outline of which is also essentially is square. Here too the outline of the biconvex lenses coincides 7 with the wire mesh 5. In cross section, the lenses are each arc-shaped educated.

Die Abdeckscheibe 3 ist in den beschriebenen Ausführungsbeispielen plan ausgebildet. Es kann jedoch auch sein, daß die Abdeckscheibe 3 und z.B. die in Fig. 1 gezeigte Frontscheibe 4 in einem Stück hergestellt sind. Im Hinblick auf eine einstückige Ausbildung der Abdeck- 3 und der Frontscheibe 4 ist es auch möglich, die in Fig. 3 gezeigte in Form einer bikonvexen Linsenmatrix ausgebildeten Frontscheibe 4 unmittelbar mit den Vorrichtungen 2 dicht zu verbinden. In diesem Fall wölben sich die bikonvexen Linsen 7 in die Vorrichtungen 2 hinein (hier nicht gezeigt). Die einstückige Ausbildung der Abdeck- 3 mit der Frontscheibe 4 vereinfacht die Herstellung des Plasma-Flachbildschirms.The cover plate 3 is flat in the exemplary embodiments described educated. However, it may also be that the cover plate 3 and e.g. the Front screen 4 shown in Fig. 1 are made in one piece. With regard on a one-piece design of the cover 3 and the front screen 4 it is also possible, the one shown in FIG. 3 in the form of a biconvex lens matrix trained front panel 4 to connect tightly with the devices 2. In this case, the biconvex lenses 7 bulge into the devices 2 into it (not shown here). The one-piece design of the cover 3 with the front window 4 simplifies the manufacture of the plasma flat screen.

Die Herstellung der erfindungsgemäßen Frontscheibe 4 bzw. der Abdeck- 3 mit der Frontscheibe 4 in einem Stück erfolgt nach gängigen Verfahren. Die Linsenmatrix kann im zähviskosen Zustand des Glases mittels geeigneter Werkzeuge aufgeprägt werden. Gleichfalls ist es möglich mittels eines ragelartigen Werkzeugs gitterartige Vertiefungen in das Viskoseglas einzubringen, so daß damit linsenähnliche Strukturen geschaffen werden. Es ist auch denkbar, die zur Herstellung des Gitters verwendeten Drähte mit einer Wellung zu versehen. Beim Einbringen der Drähte in das Viskoseglas bewirkt deren Wellung die Ausbildung einer Linsenmatrix.The manufacture of the windshield 4 according to the invention or the cover 3 with The windshield 4 is made in one piece according to common methods. The lens matrix can be in the viscous state of the glass using suitable tools be imprinted. It is also possible by means of a stick-like Tool-like recesses in the viscose glass so that so that lens-like structures are created. It is also conceivable that to provide a corrugation for the wires used to manufacture the grid. When the wires are inserted into the viscose glass, their curl causes the formation a lens matrix.

Die Funktion der erfindungsgemäßen Frontscheibe 4 ist wie folgt. The function of the windshield 4 according to the invention is as follows.

Das von den Vorrichtungen 2 abgestrahlte farbige Licht wird durch die konvexen 6 oder durch die bikonvexen Linsen 7 derart abgelenkt, daß das Drahtgitter 5 an der Lichtaustrittsseite überstrahlt wird. Das über das Drahtgitter 5 hinweggestreute Licht wird dann durch subtraktive Farbmischung in das eigentliche Bild umgesetzt.The colored light emitted by the devices 2 is by the convex 6 or deflected by the biconvex lenses 7 such that the wire mesh 5 is outshone on the light exit side. That scattered over the wire mesh 5 Subtractive color mixing then turns light into the real thing Image implemented.

Die erfindungsgemäße Frontscheibe 4 eignet sich insbesondere zur Abschirmung an sich bekannter PDPs. Es ist aber auch denkbar, eine solche Frontscheibe 4 für Flachbildschirme zu verwenden, deren Bildpunkte auf andere Weise erzeugt werden. The windshield 4 according to the invention is particularly suitable for shielding known PDPs. However, it is also conceivable for such a windshield 4 to use for flat screens, the pixels on others Generated way.

BezuaszeichenlisteBezuaszeichenliste

11
BildpunktmatrixPixel matrix
22
Vorrichtung zur Erzeugung von LichtDevice for generating light
33
Abdeckscheibecover plate
44
Frontscheibewindscreen
55
Drahtgitterwire mesh
66
konvexe Linseconvex lens
77
bikonvexe Linsebiconvex lens
S1. S2. S3S1. S2. S3
Spaltencolumns

Claims (9)

Frontscheibe zur Abschirmung eines Plasma-Flachbildschirms mit einer gitterartigen elektrisch leitenden Struktur (5), dadurch gekennzeichnet, daß zumindest eine Seite der Frontscheibe (4) eine aus konvexen Linsen (6) gebildete Linsenmatrix aufweist.Front screen for shielding a plasma flat screen with a grid-like electrically conductive structure (5), characterized in that at least one side of the front screen (4) has a lens matrix formed from convex lenses (6). Frontscheibe nach Anspruch 1, wobei die einander gegenüberliegenden Seiten der Frontscheibe (4) jeweils eine aus konvexen Linsen (6) gebildete Matrix aufweisen, so daß eine aus bikonvexen Linsen (7) bestehende Linsenmatrix (7) gebildet ist.A windshield according to claim 1, wherein the opposing ones Sides of the front screen (4) each formed from convex lenses (6) Have matrix so that a lens matrix consisting of biconvex lenses (7) (7) is formed. Frontscheibe nach einem der vorhergehenden Ansprüche, wobei die Linsen (6, 7) einen im wesentlichen quadratischen Umriß aufweisen.Windscreen according to one of the preceding claims, wherein the Lenses (6, 7) have an essentially square outline. Frontscheibe nach einem der vorhergehenden Ansprüche, wobei die Linsen (6, 7) so angeordnet sind, daß sich deren Umriß im wesentlichen mit der gitterartigen Struktur (5) deckt.Windscreen according to one of the preceding claims, wherein the Lenses (6, 7) are arranged so that their outline essentially with of the lattice-like structure (5). Frontscheibe nach einem der vorhergehenden Ansprüche, wobei die gitterartige Struktur (5) aus, vorzugsweise in die Frontscheibe (4) eingelassenen, Drähten gebildet ist.Windscreen according to one of the preceding claims, wherein the lattice-like structure (5), preferably embedded in the front window (4), Wires is formed. Frontscheibe nach einem der vorhergehenden Ansprüche, angebracht über einer Abdeckscheibe (3) eines Plasma-Flachbildschirms (2, 3).Windscreen according to one of the preceding claims, attached over a cover plate (3) of a plasma flat screen (2, 3). Frontscheibe nach Anspruch 6, wobei die Abdeckscheibe (3) eine aus einer Vielzahl von plasmagefüllten Vorrichtungen (2) zur Erzeugung von farbigem Licht gebildete Bildpunktmatrix abdeckt und die gitterartige Struktur (5) so angeordnet ist, daß sie sich im wesentlichen mit der Bildpunktmatrix (1) deckt. Front window according to claim 6, wherein the cover plate (3) one off a plurality of plasma-filled devices (2) for producing colored Light-formed pixel matrix covers and the grid-like structure (5) so is arranged so that it essentially coincides with the pixel matrix (1). Frontscheibe nach einem der Ansprüche 6 oder 7, wobei die Linsenmatrix in bezug zur Bildpunktmatrix (1) so angeordnet ist, daß durch die Frontscheibe (4) hindurchtretendes Licht derart gestreut wird, daß die gitterartige Struktur (5) beim Betrieb des Plasma-Flachbildschirms (2, 3) im wesentlichen überstrahlt und damit nicht mehr sichtbar ist.Windscreen according to one of claims 6 or 7, wherein the lens matrix with respect to the pixel matrix (1) is arranged so that through the front window (4) light passing through is scattered such that the lattice-like Structure (5) during operation of the plasma flat screen (2, 3) essentially outshines and is therefore no longer visible. Frontscheibe nach einem der Ansprüche 6 bis 8, wobei die Frontscheibe (4) in einem Stück mit der Abdeckscheibe (3) hergestellt ist.Front window according to one of claims 6 to 8, wherein the front window (4) is made in one piece with the cover plate (3).
EP01126929A 2000-11-21 2001-11-13 Front panel for shielding a flat plasma display screen Withdrawn EP1209715A3 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10057687 2000-11-21
DE2000157687 DE10057687A1 (en) 2000-11-21 2000-11-21 Face plate for screening plasma display panel (PDP), has lens matrix formed on one side of face plate, from convex lenses

Publications (2)

Publication Number Publication Date
EP1209715A2 true EP1209715A2 (en) 2002-05-29
EP1209715A3 EP1209715A3 (en) 2006-08-30

Family

ID=7664075

Family Applications (1)

Application Number Title Priority Date Filing Date
EP01126929A Withdrawn EP1209715A3 (en) 2000-11-21 2001-11-13 Front panel for shielding a flat plasma display screen

Country Status (2)

Country Link
EP (1) EP1209715A3 (en)
DE (1) DE10057687A1 (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1655759A2 (en) * 2004-11-09 2006-05-10 LG Electronics Inc. Front filter of display panel and fabrication method thereof
EP1670024A2 (en) * 2004-12-09 2006-06-14 LG Electronic Inc. Plasma display apparatus comprising filter
CN106129260A (en) * 2016-06-30 2016-11-16 京东方科技集团股份有限公司 A kind of display floater and display device

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10345046B4 (en) * 2003-09-26 2009-12-24 Continental Automotive Gmbh Display with a light filter

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19623881A1 (en) * 1996-06-05 1997-12-11 Hertz Inst Heinrich Self illuminating electro luminescent display panel
JPH10282309A (en) * 1997-04-04 1998-10-23 Toppan Printing Co Ltd Lens sheet with electromagnetic shield function, and its manufacture
EP0991101A2 (en) * 1998-09-30 2000-04-05 Mitsubishi Denki Kabushiki Kaisha Display panel and method of fabricating the same

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19623881A1 (en) * 1996-06-05 1997-12-11 Hertz Inst Heinrich Self illuminating electro luminescent display panel
JPH10282309A (en) * 1997-04-04 1998-10-23 Toppan Printing Co Ltd Lens sheet with electromagnetic shield function, and its manufacture
EP0991101A2 (en) * 1998-09-30 2000-04-05 Mitsubishi Denki Kabushiki Kaisha Display panel and method of fabricating the same

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
PATENT ABSTRACTS OF JAPAN Bd. 1999, Nr. 01, 29. Januar 1999 (1999-01-29) -& JP 10 282309 A (TOPPAN PRINTING CO LTD), 23. Oktober 1998 (1998-10-23) *

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1655759A2 (en) * 2004-11-09 2006-05-10 LG Electronics Inc. Front filter of display panel and fabrication method thereof
EP1655759A3 (en) * 2004-11-09 2008-04-09 LG Electronics Inc. Front filter of display panel and fabrication method thereof
EP1670024A2 (en) * 2004-12-09 2006-06-14 LG Electronic Inc. Plasma display apparatus comprising filter
EP1670024A3 (en) * 2004-12-09 2009-05-27 LG Electronic Inc. Plasma display apparatus comprising filter
CN106129260A (en) * 2016-06-30 2016-11-16 京东方科技集团股份有限公司 A kind of display floater and display device
CN106129260B (en) * 2016-06-30 2019-03-19 京东方科技集团股份有限公司 A kind of display panel and display device

Also Published As

Publication number Publication date
EP1209715A3 (en) 2006-08-30
DE10057687A1 (en) 2002-05-23

Similar Documents

Publication Publication Date Title
DE19729351A1 (en) High resolution liquid crystal display and manufacturing process therefor
DE2512329C2 (en) Picture tube with a layer for increasing the picture contrast and process for their manufacture
EP1830337A1 (en) Method for forming a movable matrix image and device for a light-emitting-diode running letters
DE10245933A1 (en) Device for generating a bundled luminous flux
DE202011000857U1 (en) Display backlighting arrangement for increasing color saturation, brightness and white balance performance
DE4340780A1 (en) Colour filter substrate for liquid-crystal display
DE2437580B1 (en) Signal display device for the emission of light signals
DE2615569C3 (en) Color image display device
EP1209715A2 (en) Front panel for shielding a flat plasma display screen
DE3148421A1 (en) Display unit
DE69912059T2 (en) scoreboard
DE4136312A1 (en) PLASMA DISPLAY DEVICE
DE102010021032A1 (en) Display device for motor vehicle, has digital display element for digital displaying of information regarding motor vehicle, where display element is provided with image surface
DE9004205U1 (en) Window surround for windows in enclosures
DE2739817A1 (en) DISPLAY DEVICE
DE102012205411A1 (en) Display device for vehicle component e.g. climate control unit, has light screen film arranged between secondary light source and secondary display area, which is opaque except for secondary symbol for light of secondary light source
DE102016124938B4 (en) Building technical installation device
DE3816550A1 (en) Flat electro-optical display panel for alphanumeric characters
DE19737058C1 (en) Visual display unit with flat display and loudspeaker arrangement
DE29715306U1 (en) Screen device with a flat display
EP1411408B1 (en) Diaphragm insert for a houshold appliance
DE10140427B4 (en) Light indicator for road traffic
EP0755040A2 (en) Illumination plate
EP0110112A1 (en) Electronic clock with a digital display
DE10305787A1 (en) Bird protection means

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

AK Designated contracting states

Kind code of ref document: A2

Designated state(s): AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE TR

AX Request for extension of the european patent

Free format text: AL;LT;LV;MK;RO;SI

RAP1 Party data changed (applicant data changed or rights of an application transferred)

Owner name: GRUNDIG MULTIMEDIA B.V.

PUAL Search report despatched

Free format text: ORIGINAL CODE: 0009013

AK Designated contracting states

Kind code of ref document: A3

Designated state(s): AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE TR

AX Request for extension of the european patent

Extension state: AL LT LV MK RO SI

17P Request for examination filed

Effective date: 20061013

17Q First examination report despatched

Effective date: 20061128

AKX Designation fees paid

Designated state(s): AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE TR

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN

18D Application deemed to be withdrawn

Effective date: 20080603