EP0180040A2 - Colour display tube - Google Patents

Colour display tube Download PDF

Info

Publication number
EP0180040A2
EP0180040A2 EP85112262A EP85112262A EP0180040A2 EP 0180040 A2 EP0180040 A2 EP 0180040A2 EP 85112262 A EP85112262 A EP 85112262A EP 85112262 A EP85112262 A EP 85112262A EP 0180040 A2 EP0180040 A2 EP 0180040A2
Authority
EP
European Patent Office
Prior art keywords
picture tube
color picture
holding members
shadow mask
tube according
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.)
Granted
Application number
EP85112262A
Other languages
German (de)
French (fr)
Other versions
EP0180040B1 (en
EP0180040A3 (en
Inventor
Otto Brunn
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.)
Nokia Deutschland GmbH
Original Assignee
Standard Elektrik Lorenz AG
Nokia Graetz GmbH
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 Standard Elektrik Lorenz AG, Nokia Graetz GmbH filed Critical Standard Elektrik Lorenz AG
Publication of EP0180040A2 publication Critical patent/EP0180040A2/en
Publication of EP0180040A3 publication Critical patent/EP0180040A3/en
Application granted granted Critical
Publication of EP0180040B1 publication Critical patent/EP0180040B1/en
Expired legal-status Critical Current

Links

Images

Classifications

    • 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
    • H01J29/06—Screens for shielding; Masks interposed in the electron stream
    • H01J29/07—Shadow masks for colour television tubes
    • H01J29/073—Mounting arrangements associated with shadow masks

Definitions

  • the invention relates to a color picture tube according to the preamble of claim 1.
  • the pins for wearing the mask are melted into the edge of the screen trough at such an angle that their longitudinal axes run parallel to the electron beam deflected to the corner in question.
  • the free ends of the pins are tapered and the holding members are made in two parts.
  • a first part of the holding members has an almost triangular shape and has a large hole at its end that is not attached to the mask. This hole is partially covered by a second part attached to the first part with a small opening. The openings in the second parts enclose the pins when the color picture tube is assembled.
  • the two parts of the holding members are not firmly connected to one another, but are held by springs and flags.
  • the mask is placed in the shield trough with the interposition of a distance gauge and then the parts of the adhesive members are fastened together.
  • the invention is therefore based on the object to design the color picture tube of the type mentioned in such a way that a tolerance compensation between the shadow mask and the pins in the screen trough when it is first inserted is possible in a simple manner and with simple adhesive members.
  • Fig. 1 only the screen trough 1 with the shadow mask 2 is shown from a conventional color picture tube.
  • the x-axis, the y-axis and the diagonals D1 and D2 are shown in this representation.
  • the area on the edge 4 of the shield trough 1, on which the shield trough is connected to the cone by means of glass solder, is designated by 3.
  • the screen trough 1 carries the luminescent layer, not shown, on its inside.
  • pins 5 are arranged which support the shadow mask 2 via holding members 6.
  • the holding members 6 engage on the edge 7 of the shadow mask 2.
  • the axis of symmetry (longitudinal axis) of the color picture tube is at the intersection of the x-axis with the y-axis perpendicular to the plane of the drawing.
  • the mask 2 does not have to be held in the corners of the screen trough 1, but can also be provided at the intersections of the x and y axes with the edge 7 of the shadow mask 2 and the edge 4 of the screen trough 1 .
  • the adhesive member 6 consists of two parts 6a and 6b, some of which lie one above the other.
  • the part 6a is provided at its free end with the approximately triangular hole 8 through which the pin 5 engages.
  • At the free end of part 6b there is a recess 9 lying symmetrically to the longitudinal axis of the holding member 6, so that the part 6b ends in two prongs 10a and 10b. These tines 10a, 10b are connected to the edge 7 of the shadow mask 2.
  • the parts 6a and 6b are arranged such that they can move with respect to one another, which is achieved by a swivel joint present in the overlapping region of the parts.
  • the swivel joint consists of a raw rent 11.
  • part 6a The free end of part 6a is much narrower than its area covered by part 6b.
  • the part 6a has two shoulders 13, the edge of which lies on an arc.
  • the circular arc is determined by a radius extending from the raw rent 11 to the shoulders 13.
  • the guide tabs 12 In the middle of the shoulder 13 there is one of the guide tabs 12 which surround the edge of the part 6b.
  • This edge of part 6b forms part of an arc of a circle which is determined by the radius mentioned.
  • the longitudinal axes of the guide tab 12 extend in their extension through the Rohmiet 11.
  • a second embodiment of a holding member 6 is shown in two views, in which compared to the first embodiment, the pivot joint is made simpler.
  • the part 6a has an incision 14 at its end covered by the part 6b and the recess 9 between the prongs 10a, 10b in part 6b extends to the bottom of the incision 14.
  • the recess 9 is delimited by a circular arc near the bottom of the incision .
  • a guide tab 15 is arranged on the part 6a, which engages around the edge of the part 6b in the region of the cutout 9.
  • the swivel joint connecting the parts 6a and 6b is thus formed in a simple manner from the two guide tabs 12 and the guide tab 15 opposite them.
  • FIG. 4 shows a third embodiment of a holding member in two views. If only a lateral displacement is sufficient between the two parts 6a and 6b of the holding member 6, then this embodiment can be chosen.
  • the part 6a again has on the shoulders 13 guide tabs 12 which grip around the part 6b.
  • the course of the shoulders 13 is simplified in that their edge is perpendicular to the longitudinal axis of the holding member 6.
  • the part 6b has shoulders 16, the edge of which is also perpendicular to the longitudinal axis of the holding member.
  • the possible lateral movement of the parts 6a and 6b against one another is limited by the respective abutment of a guide tab 12 on the narrow free end of part 6a or a guide tab 17 on a prong 10 on the free end of part 6b.
  • the holding members 6 can also be designed in accordance with the embodiment shown in FIG. 5.
  • part 6b of the holding members simultaneously serves as corner reinforcement 18 for shadow mask 2.
  • tubular rivet 11 is arranged as a swivel joint. To stiffen the part 6a, it can be provided with folded-over edges 19.
  • the holding members 6 are connected to the therefor provided for h indicated positions with the edge 7 of the shadow mask 2, directly with the shadow mask, or via an intermediate piece with the shadow mask.
  • the shadow mask 2 is inserted into the shield trough 1 and the holding members 6 are simultaneously pushed onto the pins 5. Due to the mobility of the two parts of the holding members, the tolerances are compensated for by a possible movement transverse to the axis of symmetry of the color picture tube. The distance between the shadow mask and the luminescent layer remains unchanged.
  • the holding members are then fixed in their assumed position in that the parts of the holding members are connected to one another, for example by spot welding using a laser beam.
  • the new, simple holding members 6 can be mounted outside the color picture tube and attached to the shadow mask. As a result, the distance between the shadow mask and the luminescent layer is then fixed after insertion into the screen trough, so that no distance gauges are required. Any tolerances in the direction transverse to the axis of symmetry of the color picture tube are then compensated for as already described.

Landscapes

  • Electrodes For Cathode-Ray Tubes (AREA)

Abstract

Für die Abstützung der Schattenmakse (2) an den Stiften (5) im Rand (4) der Schirmwanne (1) werden Halteglieder (6) angegeben. Die Halteglieder sind zweiteilig ausgebildet und durch Mittel miteinander verbunden, die eine Bewegung quer zur Symmetrieachse der Farbbildröhre zulassen. Diese Mittel können aus einem Drehgelenk oder einer Geradführung bestehen. Beim ersten Einsetzen der Schattenmaske (2) in die Schirmwanne (1) können durch die mögliche Querbewegung der Halteglieder (6) Toleranzen der Stifte (5) ausgeglichen werden. Dabei wird der Abstand zwischen der Schattenmaske (2) und dem Leuchtschirm nicht beeinflußt.For the support of the shadow mask (2) on the pins (5) in the edge (4) of the screen trough (1) holding members (6) are specified. The holding members are formed in two parts and connected to one another by means which allow movement transverse to the axis of symmetry of the color picture tube. These means can consist of a swivel joint or a straight guide. When inserting the shadow mask (2) into the screen trough (1) for the first time, tolerances of the pins (5) can be compensated for by the possible transverse movement of the holding members (6). The distance between the shadow mask (2) and the fluorescent screen is not affected.

Description

Die Erfindung bezieht sich auf eine Farbbildröhre gemäß dem Oberbegriff des Anspruchs 1.The invention relates to a color picture tube according to the preamble of claim 1.

Aus der DE-OS 3215742 ist eine deratige Farbbildröhre bekannt, deren Stifte zum Tragen der Maske unter einem derartigen Winkel in dem Rand der Schirmwanne eingeschmolzen sind, daß ihre Längsachsen parallel zum zu der betreffenden Ecke abgelenkten Elektronenstrahl verlaufen. Die freien Enden der Stifte sind kegelig und die Halteglieder sind zweiteilig ausgebildet. Ein erstes Teil der Halteglieder weist eine nahezu dreieckige Form auf und hat an seinem nicht mit der Maske befestigten Ende ein großes Loch. Dieses Loch wird teilweise von einem am ersten Teil befestigten zweiten Teil mit einer kleinen Öffnung abgedeckt. Die Öffnungen in den zweiten Teilen umfassen im zusammengebauten Zustand der Farbbildröhre die Stifte.From DE-OS 3215742 such a color picture tube is known, the pins for wearing the mask are melted into the edge of the screen trough at such an angle that their longitudinal axes run parallel to the electron beam deflected to the corner in question. The free ends of the pins are tapered and the holding members are made in two parts. A first part of the holding members has an almost triangular shape and has a large hole at its end that is not attached to the mask. This hole is partially covered by a second part attached to the first part with a small opening. The openings in the second parts enclose the pins when the color picture tube is assembled.

Vor dem Einbau der Maske in die Schirmwanne sind die beiden Teile der Halteglieder nicht fest miteinander verbunden, sondern sie werden von Federn und Fahnen gehalten. Die Maske wird unter Zwischenfügung einer Abstandslehre in die Schirmwanne gelegt und dann werden die Teile der Hafteglieder miteinander befestigt.Before the mask is installed in the shield trough, the two parts of the holding members are not firmly connected to one another, but are held by springs and flags. The mask is placed in the shield trough with the interposition of a distance gauge and then the parts of the adhesive members are fastened together.

Der Erfindung liegt daher die Aufgabe zugrunde, die Farbbildröhre der eingangs genannten Art derart auszugestalten, daß ein Toleranzausgleich zwischen der Schattenmaske und den Stiften in der Schirmwanne beim erstmaligen Einsetzen in einfacher Weise und mit einfachen Haftegliedem möglich ist.The invention is therefore based on the object to design the color picture tube of the type mentioned in such a way that a tolerance compensation between the shadow mask and the pins in the screen trough when it is first inserted is possible in a simple manner and with simple adhesive members.

Die Lösung dieser Aufgabe erfolgt mit den im Anspruch 1 angegebenen Mitteln. Vorteilhafte Ausgestaltungen sind in den Unteransprüchen enthalten.This object is achieved with the means specified in claim 1. Advantageous refinements are contained in the subclaims.

Die Erfindung wird nun anhand von in den Figuren gezeigten Ausführungsbeispielen näher erläutert. Es zeigen:

  • Fig. 1 die Draufsicht auf eine Schirmwanne mit einer eingesetzten Schattenmaske;
  • Fig. 2 die Draufsicht und die Seitenansicht einer ersten Ausführungsform der Halteglieder;
  • Fig. 3 die Draufsicht und die Seitenansicht einer zweiten Ausführungsform der Halteglieder
  • Fig. 4 die Draufsicht und die Seitenansicht einer dritten Ausführungsform der Halteglieder und
  • Fig. 5 die Seitenansicht einer vierten Ausführungsform, teilweise geschnitten dargestellt.
The invention will now be explained in more detail with reference to exemplary embodiments shown in the figures. Show it:
  • Figure 1 is a plan view of an umbrella pan with a shadow mask inserted.
  • 2 shows the top view and the side view of a first embodiment of the holding members;
  • Fig. 3 shows the top view and the side view of a second embodiment of the holding members
  • Fig. 4 shows the top view and the side view of a third embodiment of the holding members and
  • Fig. 5 shows the side view of a fourth embodiment, shown partially in section.

In Fig. 1 ist von einer üblichen Farbbildröhre nur die Schirmwanne 1 mit der eingesetzten Schattenmaske 2 dargestellt. Es sind in diese Darstellung die x-Achse, die y-Achse und die Diagonalen D1 und D2 eingezeichnet. Die Fläche auf dem Rand 4 der Schirmwanne 1, an welcher die Schirmwanne mittels Glaslot mit dem Konus verbunden wird, ist mit 3 bezeichnet. Die Schirmwanne 1 trägt auf ihrer Innenseite die nicht dargestellte Leuchtschicht. Im Schnittpunkt der Diagonalen D1 und D2 mit dem Rand 4 der Schirmwanne 1 sind Stifte 5 angeordnet, die über Halteglieder 6 die Schattenmaske 2 tragen. Die Halteglieder 6 greifen am Rand 7 der Schattenmaske 2 an.In Fig. 1 only the screen trough 1 with the shadow mask 2 is shown from a conventional color picture tube. The x-axis, the y-axis and the diagonals D1 and D2 are shown in this representation. The area on the edge 4 of the shield trough 1, on which the shield trough is connected to the cone by means of glass solder, is designated by 3. The screen trough 1 carries the luminescent layer, not shown, on its inside. At the intersection of the diagonals D1 and D2 with the edge 4 of the screen trough 1, pins 5 are arranged which support the shadow mask 2 via holding members 6. The holding members 6 engage on the edge 7 of the shadow mask 2.

Die Symmetrieachse (Längsachse) der Farbbildröhre steht im Schnittpunkt der x-Achse mit der y-Achse senkrecht auf der Zeichenebene. Die Halterung der Maske 2 muß nicht in den Ecken der Schirmwanne 1 erfolgen, sondern kann auch in den Schnittpunkten der x-und der y-Achse mit dem Rand 7 der Schattenmaske 2 und dem Rand 4 der Schirmwanne 1 vorgesehen sein.The axis of symmetry (longitudinal axis) of the color picture tube is at the intersection of the x-axis with the y-axis perpendicular to the plane of the drawing. The mask 2 does not have to be held in the corners of the screen trough 1, but can also be provided at the intersections of the x and y axes with the edge 7 of the shadow mask 2 and the edge 4 of the screen trough 1 .

In Fig. 2 ist eine erste Ausführungsform eines Hattegliedes 6 in zwei Ansichten dargestellt. Das Hafteglied 6 besteht aus zwei Teilen 6a und 6b, die zum Teil übereinanderliegen. Das Teil 6a ist an seinem freien Ende mit dem etwa dreieckigen Loch 8 versehen, durch das der Stift 5 greift. Am freien Ende des Teiles 6b ist eine symmetrisch zur Längsachse des Haltegliedes 6 liegende Aussparung 9 vorhanden, so daß das Teil 6b in zwei Zinken 10a und 10b ausläuft. Diese Zinken 10a, 10b werden mit dem Rand 7 der Schattenmaske 2 verbunden.2 shows a first embodiment of a hat member 6 in two views. The adhesive member 6 consists of two parts 6a and 6b, some of which lie one above the other. The part 6a is provided at its free end with the approximately triangular hole 8 through which the pin 5 engages. At the free end of part 6b there is a recess 9 lying symmetrically to the longitudinal axis of the holding member 6, so that the part 6b ends in two prongs 10a and 10b. These tines 10a, 10b are connected to the edge 7 of the shadow mask 2.

Die Teile 6a und 6b sind zueinander beweglich angeordnet, was durch ein im einander überdeckenden Bereich der Teile vorhandenes Drehgelenk erreicht wird. Das Drehgelenk besteht bei dieser Ausführungsform des Haltegliedes 6 aus einem Rohmiet 11.The parts 6a and 6b are arranged such that they can move with respect to one another, which is achieved by a swivel joint present in the overlapping region of the parts. In this embodiment of the holding member 6, the swivel joint consists of a raw rent 11.

Das freie Ende des Teiles 6a ist wesentlich schmaler als sein vom Teil 6b überdeckter Bereich. Hierdurch weist das Teil 6a zwei Schultern 13 auf, deren Rand auf einem Kreisbogen liegt. Der Kreisbogen wird durch einen vom Rohmiet 11 bis zu den Schultern 13 reichenden Radius bestimmt. In der Mitte der Schulter 13 ist je einer der Führungslappen 12 vorhanden, die den Rand des Teiles 6b umgreifen. Dieser Rand des Teiles 6b bildet einen Teil eines Kreisbogens, der durch den erwähnten Radius bestimmt wird. Die Längsachsen der Führungslappen 12 verlaufen in ihrer Verlängerung durch den Rohmiet 11. Durch diese Anordnung der Führungslappen 12 werden die beiden Teile 6a und 6b des Haftegliedes 6 in etwa einer Ebene gehalten und der Rohrniet 11 entlastet, ohne daß die Drehbewegung der Teile gegeneinander behindert oder eingeschränkt wäre.The free end of part 6a is much narrower than its area covered by part 6b. As a result, the part 6a has two shoulders 13, the edge of which lies on an arc. The circular arc is determined by a radius extending from the raw rent 11 to the shoulders 13. In the middle of the shoulder 13 there is one of the guide tabs 12 which surround the edge of the part 6b. This edge of part 6b forms part of an arc of a circle which is determined by the radius mentioned. The longitudinal axes of the guide tab 12 extend in their extension through the Rohmiet 11. By this arrangement of the guide tab 12, the two parts 6a and 6b of the adhesive member 6 are held in approximately one plane and the tubular rivet 11 is relieved without the rotary movement of the parts against each other or would be restricted.

In Fig. 3 ist eine zweite Ausführungsform eines Haltegliedes 6 in zwei Ansichten dargestellt, bei der gegenüber der ersten Ausführungsform das Drehgelenk einfacher ausgeführt ist. Das Teil 6a weist an seinem vom Teil 6b überdeckten Ende einen Einschnitt 14 auf und die Aussparung 9 zwischen den Zinken 10a, 10b im Teil 6b reicht bis auf den Grund des Einschnittes 14. Die Aussparung 9 ist nahe dem Grund des Einschnittes durch einen Kreisbogen begrenzt. Im Schnittpunkt der Längsachse des Haltegliedes 6 mit dem Einschnitt 14 ist am Teil 6a ein Führungslappen 15 angeordnet, der um den Rand des Teiles 6b im Bereich des Ausschnittes 9 herumgreift. Bei dieser Ausführungsform ist also das die Teile 6a und 6b verbindende Drehgelenk auf einfache Weise aus den zwei Führungslappen 12 und dem diesen gegenüberliegenden Führungslappen 15 gebildet.In Fig. 3, a second embodiment of a holding member 6 is shown in two views, in which compared to the first embodiment, the pivot joint is made simpler. The part 6a has an incision 14 at its end covered by the part 6b and the recess 9 between the prongs 10a, 10b in part 6b extends to the bottom of the incision 14. The recess 9 is delimited by a circular arc near the bottom of the incision . At the intersection of the longitudinal axis of the holding member 6 with the incision 14, a guide tab 15 is arranged on the part 6a, which engages around the edge of the part 6b in the region of the cutout 9. In this embodiment, the swivel joint connecting the parts 6a and 6b is thus formed in a simple manner from the two guide tabs 12 and the guide tab 15 opposite them.

In Fig. 4 ist eine dritte Ausführungsform eines Haltegliedes in zwei Ansichten dargestellt. Wenn zwischen den beiden Teilen 6a und 6b des Haltegliedes 6 nur eine seitliche Verschiebung ausreichend ist, dann kann diese Ausführungsform gewählt werden. Das Teil 6a weist wieder an den Schultern 13 Führungslappen 12 auf, die um das Teil 6b greifen. Hierbei ist der Verlauf der Schultern 13 dadurch vereinfacht, daß ihr Rand senkrecht auf der Längsachse des Haltegliedes 6 steht. In gleicher Weise weist das Teil 6b Schultern 16 auf, deren Rand auch senkrecht auf der Längsachse des Haltegliedes steht. Am Rand des vom Teil 6b überdeckten Endes des Teiles 6a sind zwei weitere Führungslappen 17 vorhanden, die die Schultern 16 am Teil 6b umgreifen. Die mögliche seitliche Bewegung der Teile 6a und 6b gegeneinander ist durch den jeweiligen Anschlag eines Führungslappens 12 an das schmale freie Ende des Teiles 6a bzw. eines Führungslappens 17 an einen Zinken 10 am freien Ende des Teiles 6b begrenzt. 4 shows a third embodiment of a holding member in two views. If only a lateral displacement is sufficient between the two parts 6a and 6b of the holding member 6, then this embodiment can be chosen. The part 6a again has on the shoulders 13 guide tabs 12 which grip around the part 6b. Here, the course of the shoulders 13 is simplified in that their edge is perpendicular to the longitudinal axis of the holding member 6. In the same way, the part 6b has shoulders 16, the edge of which is also perpendicular to the longitudinal axis of the holding member. At the edge of the end of part 6a covered by part 6b there are two further guide tabs 17 which grip shoulders 16 on part 6b. The possible lateral movement of the parts 6a and 6b against one another is limited by the respective abutment of a guide tab 12 on the narrow free end of part 6a or a guide tab 17 on a prong 10 on the free end of part 6b.

Bei einer Farbbildröhre mit einer rahmenlosen Schattenmaske 2 können die Halteglieder 6 auch gemäß der in Fig. 5 dargestellten Ausführungsform ausgebildet sein. Hierbei dient das Teil 6b der Halteglieder gleichzeitig als Eckenverstärkung 18 für die Schattenmaske 2. Im Überlappungsbereich der Teile 6a und 6b ist als Drehgelenk der Rohrniet 11 angeordnet. Zur Versteifung des Teiles 6a kann es mit umgefalzten Rändern 19 versehen sein.In the case of a color picture tube with a frameless shadow mask 2, the holding members 6 can also be designed in accordance with the embodiment shown in FIG. 5. Here, part 6b of the holding members simultaneously serves as corner reinforcement 18 for shadow mask 2. In the overlap area of parts 6a and 6b, tubular rivet 11 is arranged as a swivel joint. To stiffen the part 6a, it can be provided with folded-over edges 19.

Vor dem Einbau der Schattenmaske 2 in die Schirmwanne 1 werden die Halteglieder 6 an den dafür vorgese- henen Stellen mit dem Rand 7 der Schattenmaske 2, direkt mit der Schattenmaske oder über ein Zwischenstück mit der Schattenmaske verbunden. Die Schattenmaske 2 wird in die Schirmwanne 1 eingesetzt und dabei werden gleichzeibg die Halteglieder 6 auf die Stifte 5 geschoben. Durch die Beweglichkeit der beiden Teile der Halteglieder findet dabei ein Ausgleich der Toleranzen durch eine mögliche Bewegung quer zur Symmetrieachse der Farbbildröhre statt. Der Abstand der Schattenmaske von der Leuchtschicht bleibt dabei unverändert. Die Halteglieder werden danach dadurch in ihrer eingenommenen Lage fixiert, daß die Teile der Halteglieder, zum Beispiel durch Punktschweißen mittels eines Laserstrahles, miteinander verbunden werden.Before installing the shadow mask 2 in the screen trough 1, the holding members 6 are connected to the therefor provided for h indicated positions with the edge 7 of the shadow mask 2, directly with the shadow mask, or via an intermediate piece with the shadow mask. The shadow mask 2 is inserted into the shield trough 1 and the holding members 6 are simultaneously pushed onto the pins 5. Due to the mobility of the two parts of the holding members, the tolerances are compensated for by a possible movement transverse to the axis of symmetry of the color picture tube. The distance between the shadow mask and the luminescent layer remains unchanged. The holding members are then fixed in their assumed position in that the parts of the holding members are connected to one another, for example by spot welding using a laser beam.

Die neuen, einfachen Halteglieder 6 können außerhalb der Farbbildröhre montiert und an der Schattenmaske befestigt werden. Hierdurch liegt dann der Abstand zwischen der Schattenmaske und der Leuchtschicht nach dem Einsetzen in die Schirmwanne fest, so daß keinerlei Abstandslehren benötigt werden. Der Ausgleich eventueller Toleranzen in der Richtung quer zur Symmetrieachse der Farbbildröhre erfolgt dann wie schon beschrieben.The new, simple holding members 6 can be mounted outside the color picture tube and attached to the shadow mask. As a result, the distance between the shadow mask and the luminescent layer is then fixed after insertion into the screen trough, so that no distance gauges are required. Any tolerances in the direction transverse to the axis of symmetry of the color picture tube are then compensated for as already described.

Es ist noch anzumerken, daß es auch möglich ist, die Hafteglieder mit den dann einfacher ausgebildeten Stiften im Rand der Schirmwanne fest zu verbinden und zwischen der Schattenmaske und den dort anliegenden Enden der Halteglieder die lösbare Verbindung vorzusehen.It should also be noted that it is also possible to firmly connect the adhesive members to the then simpler pins in the edge of the shield trough and to provide the releasable connection between the shadow mask and the ends of the holding members adjacent there.

Claims (8)

1. Farbbildröhre mit einer Schirmwanne und einem Konus mit Hals, bei der im Hals ein Elektronenstrahlerzeugungssystem angeordnet, die Innenfläche der Schirmwanne mit einer Leuchtschicht versehen und in der Nähe der Schirmwanne eine Schattenmaske befestigt ist, an der zweiteilige Halteglieder befestigt sind, die an ihrem freien Ende je ein Loch aufweisen, in die in der Schirmwanne angebrachte Stifte eintauchen und die durch Sicherungsfedem an den Stiften gehalten sind, dadurch gekennzeichnet, daß zwischen den beiden Teilen (6a, 6b) der Halteglieder (6) Mittel für eine Bewegung eines Teiles der Halteglieder (6) quer zur Symmetrieachse (Längsachse) der Farbbildröhre vorhanden sind.1. Color picture tube with a screen trough and a cone with a neck, in which an electron gun is arranged in the neck, the inner surface of the screen trough is provided with a luminescent layer and a shadow mask is attached near the screen trough, to which two-part holding members are attached, which are attached to their free End each have a hole, into which pins attached in the shield trough and which are held by securing springs on the pins, characterized in that between the two parts (6a, 6b) of the holding members (6) means for moving a part of the holding members (6) transverse to the axis of symmetry (longitudinal axis) of the color picture tube are present. 2. Farbbildröhre nach Anspruch 1, dadurch gekennzeichnet, daß sich die beiden Teile (6a, 6b) jedes Haltegliedes (6) überlappen und im Überlappungsbereich durch ein Drehgelenk miteinander verbunden sind.2. Color picture tube according to claim 1 , characterized in that the two parts (6a, 6b) of each holding member (6) overlap and are connected to one another in the overlap area by a swivel joint. 3. Farbbildröhre nach Anspruch 2, dadurch gekennzeichnet, daß das Drehgelenk aus einem Rohmiet (11) besteht.3. Color picture tube according to claim 2, characterized in that the swivel joint consists of a raw rent (11). 4. Farbbildröhre nach Anspruch 3, dadurch gekennzeichnet, daß das erste Teil (6a) des Haltegliedes (6) zwei Schultern (13) mit je einem Führungslappen (12) aufweist, die das Ende des zweiten Teiles (6b) umgreifen. 4th Color picture tube according to claim 3, characterized in that the first part (6a) of the holding member (6) has two shoulders (13), each with a guide tab (12), which encompass the end of the second part (6b). 5. Farbbildröhre nach Anspruch 2, dadurch gekennzeichnet, daß das Drehgelenk aus einem Führungslappen (15) am Rand des ersten Teiles (6a) besteht, der das zweite Teil (6b) umgreift und diesem Führungslappen (15) gegenüber am Ende des ersten Teiles (6a) zwei weitere Führungslappen (12) vorhanden sind, die das zweite Teil (6b) an seinem Ende umgreifen. 5 . Color picture tube according to claim 2, characterized in that the swivel joint consists of a guide tab ( 1 5) on the edge of the first part (6a) which surrounds the second part (6b) and opposite this guide tab (15) at the end of the first part (6a ) there are two further guide tabs (12) which grip around the second part (6b) at its end. 6. Farbbildröhre nach Anspruch 1, dadurch gekennzeichnet, daß die beiden Teile (6a, 6b) der Halteglieder (6) über eine Geradführung miteinander verbunden sind.6. Color picture tube according to claim 1, characterized in that the two parts (6a, 6b) of the holding members (6) are connected to one another via a straight guide. 7. Farbbildröhre nach Anspruch 6, dadurch gekennzeichnet, daß das erste Teil (6a) mit vier Führungslappen (12, 17) das zweite Teil (6b) in der Weise umgreift, daß je zwei Führungslappen (12 bzw. 17) auf einer senkrecht zur Längsachse der Halteglieder (6) stehenden Verbindungslinie liegen und die beiden Verbindungslinien parallel zueinander verlaufen.7. Color picture tube according to claim 6, characterized in that the first part (6a) with four guide tabs ( 1 2, 17 ) engages around the second part (6b) in such a way that two guide tabs (12 and 17) on a vertical are connected to the longitudinal axis of the holding members (6) and the two connecting lines are parallel to each other. 8. Farbbildröhre nach Anspruch 2, 3 oder 6, mit einer rahmenlosen Schattenmaske, dadurch gekennzeichnet, daß das an der Schattenmakse (2) befestigte Teil (6b) gleichzeitig eine Eckenverstärkung (18) für die Schattenmaske bildet.8. Color picture tube according to claim 2, 3 or 6, with a frameless shadow mask, characterized in that the part attached to the shadow mask (2) (6b) simultaneously forms a corner reinforcement (18) for the shadow mask.
EP85112262A 1984-09-29 1985-09-27 Colour display tube Expired EP0180040B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3435891 1984-09-29
DE19843435891 DE3435891A1 (en) 1984-09-29 1984-09-29 COLORED PIPES

Publications (3)

Publication Number Publication Date
EP0180040A2 true EP0180040A2 (en) 1986-05-07
EP0180040A3 EP0180040A3 (en) 1986-07-30
EP0180040B1 EP0180040B1 (en) 1988-09-07

Family

ID=6246753

Family Applications (1)

Application Number Title Priority Date Filing Date
EP85112262A Expired EP0180040B1 (en) 1984-09-29 1985-09-27 Colour display tube

Country Status (5)

Country Link
US (1) US4663561A (en)
EP (1) EP0180040B1 (en)
JP (1) JPS6185756A (en)
CA (1) CA1222278A (en)
DE (2) DE3435891A1 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2631162A1 (en) * 1988-04-07 1989-11-10 Philips Nv COLOR IMAGE TUBE AND MANUFACTURING METHOD THEREOF
EP0355893A1 (en) * 1988-08-04 1990-02-28 Koninklijke Philips Electronics N.V. Method of manufacturing a colour display tube

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL8702993A (en) * 1987-12-11 1989-07-03 Philips Nv COLOR IMAGE TUBE.
TW341378U (en) * 1993-09-21 1998-09-21 Thomson Consumer Electronics Color picture tube having improved shadow mask-frame assembly support means
US6265818B1 (en) 1994-09-02 2001-07-24 Philips Electronics North America Corporation Stiffened support springs and CRT incorporating same

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2081001A (en) * 1980-07-21 1982-02-10 Philips Nv Colour display tube
GB2097996A (en) * 1981-05-04 1982-11-10 Philips Nv Shadow mask support arrangement for a colour display tube
JPS58111242A (en) * 1981-12-25 1983-07-02 Hitachi Ltd Shadow-mask supporting spring
US4467242A (en) * 1982-10-18 1984-08-21 Rca Corporation Color selection electrode mounting structure having an off-set washer

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS55154038A (en) * 1979-05-18 1980-12-01 Hitachi Ltd Shadow mask retaining frame body
US4439709A (en) * 1982-04-29 1984-03-27 Rca Corporation Color picture tube having improved temperature compensating support for a mask-frame assembly

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2081001A (en) * 1980-07-21 1982-02-10 Philips Nv Colour display tube
GB2097996A (en) * 1981-05-04 1982-11-10 Philips Nv Shadow mask support arrangement for a colour display tube
JPS58111242A (en) * 1981-12-25 1983-07-02 Hitachi Ltd Shadow-mask supporting spring
US4467242A (en) * 1982-10-18 1984-08-21 Rca Corporation Color selection electrode mounting structure having an off-set washer

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
PATENTS ABSTRACTS OF JAPAN, Band 7, Nr. 218 (E-200) [1363], 28. September 1983; & JP - A - 58 111 242 (HITACHI SEISAKUSHO K.K.) 02-07-1983 *

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2631162A1 (en) * 1988-04-07 1989-11-10 Philips Nv COLOR IMAGE TUBE AND MANUFACTURING METHOD THEREOF
EP0355893A1 (en) * 1988-08-04 1990-02-28 Koninklijke Philips Electronics N.V. Method of manufacturing a colour display tube

Also Published As

Publication number Publication date
EP0180040B1 (en) 1988-09-07
JPH0219578B2 (en) 1990-05-02
US4663561A (en) 1987-05-05
DE3435891A1 (en) 1986-04-10
EP0180040A3 (en) 1986-07-30
CA1222278A (en) 1987-05-26
DE3564888D1 (en) 1988-10-13
JPS6185756A (en) 1986-05-01

Similar Documents

Publication Publication Date Title
DE3143022A1 (en) "COLORED PIPES WITH IMPROVED INLINE ELECTRON BEAM SYSTEM WITH EXTENDED FOCUS LENS"
EP0156362B1 (en) Colour picture tube
DE3337825C2 (en)
DE3032623A1 (en) ELECTRON BEAM SYSTEM.
EP0180040B1 (en) Colour display tube
EP0495778B1 (en) Filter plug connector
DD217363A5 (en) FARBBILDROEHRE
EP0235724B1 (en) Colour picture tube
DE2416509A1 (en) MAGNETIC CORRECTION ARRANGEMENT FOR A CATHODE BEAM TUBE
DE2412541C3 (en) Beam generator system for color picture tubes
DE2600331B2 (en) Apparatus for attaching a deflection yoke to the bulb of a cathode ray tube
DE3816550C2 (en)
EP0095617A2 (en) Colour display tube provided with twist error correction means
EP0180205A1 (en) Deflection system for colour picture tubes
EP0052772A2 (en) Track chain
EP0215486B1 (en) Colour display tube
EP0167780A2 (en) Device for assembling electron guns
DE1789136C3 (en) cathode ray tube
DE3047610A1 (en) COLORED PIPES WITH SLOT HOLE MASK
DE19530895C2 (en) Connection system for attaching magnetic shields to mask frames in cathode ray tubes
DD262107A5 (en) COLOR PICTURES WITH INLINE RAY SYSTEM AND KOMAKORREKTUR
DE2119340C2 (en) Electrode unit comprising three electron beam generating systems - having common convergence electrode sealed by melting flaps to three electrodes at same positive potential
DE3126077C2 (en) Holder for an essentially rectangular quartz oscillating disk
DE2231434A1 (en) COLOR MASK UNIT FOR COLOR TUBE
DE3530932C2 (en)

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): DE FR GB IT NL

PUAL Search report despatched

Free format text: ORIGINAL CODE: 0009013

AK Designated contracting states

Kind code of ref document: A3

Designated state(s): DE FR GB IT NL

17P Request for examination filed

Effective date: 19860911

17Q First examination report despatched

Effective date: 19871116

ITF It: translation for a ep patent filed

Owner name: DOTT. ANTONIO SERGI

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): DE FR GB IT NL

GBT Gb: translation of ep patent filed (gb section 77(6)(a)/1977)
REF Corresponds to:

Ref document number: 3564888

Country of ref document: DE

Date of ref document: 19881013

ET Fr: translation filed
RAP2 Party data changed (patent owner data changed or rights of a patent transferred)

Owner name: NOKIA GRAETZ GESELLSCHAFT MIT BESCHRAENKTER HAFTUN

REG Reference to a national code

Ref country code: GB

Ref legal event code: 732

REG Reference to a national code

Ref country code: FR

Ref legal event code: TP

NLS Nl: assignments of ep-patents

Owner name: NOKIA GRAETZ GMBH TE PFORZHEIM, BONDSREPUBLIEK DUI

PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

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

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT

ITPR It: changes in ownership of a european patent

Owner name: CESSIONE;NOKIA GRAETZ GMBH

26N No opposition filed
REG Reference to a national code

Ref country code: FR

Ref legal event code: CD

NLT1 Nl: modifications of names registered in virtue of documents presented to the patent office pursuant to art. 16 a, paragraph 1

Owner name: NOKIA UNTERHALTUNGSELEKTRONIK (DEUTSCHLAND) GMBH T

ITPR It: changes in ownership of a european patent

Owner name: CAMBIO RAGIONE SOCIALE;NOKIA (DEUTSCHLAND) GMBH

REG Reference to a national code

Ref country code: FR

Ref legal event code: CD

NLT1 Nl: modifications of names registered in virtue of documents presented to the patent office pursuant to art. 16 a, paragraph 1

Owner name: NOKIA (DEUTSCHLAND) GMBH TE PFORZHEIM, BONDSREPUBL

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: GB

Payment date: 19930917

Year of fee payment: 9

ITTA It: last paid annual fee
PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: NL

Payment date: 19930930

Year of fee payment: 9

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: DE

Payment date: 19931112

Year of fee payment: 9

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: GB

Effective date: 19940927

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: FR

Payment date: 19940927

Year of fee payment: 10

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: NL

Effective date: 19950401

NLV4 Nl: lapsed or anulled due to non-payment of the annual fee
GBPC Gb: european patent ceased through non-payment of renewal fee

Effective date: 19940927

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: DE

Effective date: 19950601

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: FR

Effective date: 19960531

REG Reference to a national code

Ref country code: FR

Ref legal event code: ST