EP0858094A1 - Tube image couleur avec un ensemble masque-cadre - Google Patents

Tube image couleur avec un ensemble masque-cadre Download PDF

Info

Publication number: EP0858094A1
Authority: EP; European Patent Office
Prior art keywords: mask; notches; corresponds; frame; welding
Prior art date: 1997-01-30
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

EP97101498A

Other languages

German (de)

English (en)

Other versions

EP0858094B1 (fr

Inventor

Heiko Fichtler

Stefan Fischer

Rolf Reidinger

Werner Wolffram

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.)

PSI Esslingen GmbH

Original Assignee

Matsushita Electronics Europe 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.)

1997-01-30

Filing date

1997-01-30

Publication date

1998-08-12

1997-01-30 Application filed by Matsushita Electronics Europe GmbH filed Critical Matsushita Electronics Europe GmbH

1997-01-30 Priority to EP97101498A priority Critical patent/EP0858094B1/fr

1997-01-30 Priority to DE59707047T priority patent/DE59707047D1/de

1998-01-30 Priority to US09/015,969 priority patent/US6043597A/en

1998-08-12 Publication of EP0858094A1 publication Critical patent/EP0858094A1/fr

2002-04-17 Application granted granted Critical

2002-04-17 Publication of EP0858094B1 publication Critical patent/EP0858094B1/fr

2017-01-30 Anticipated expiration legal-status Critical

Status Expired - Lifetime legal-status Critical Current

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
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J2229/00—Details of cathode ray tubes or electron beam tubes
- H01J2229/07—Shadow masks
- H01J2229/0727—Aperture plate
- H01J2229/0766—Details of skirt or border

Definitions

the invention relates to a color picture tube with a mask-frame combination according to the preamble of the claim 1.
the shadow mask or mask consists of thin, low carbon iron sheet or iron alloys. nowadays the masks are often made of iron-nickel alloys manufactured at low temperatures compared to iron have very little thermal expansion caused by Magnetostriction. There are about 400,000 holes in the mask etched, the approximately 600 triple stripes or the approximately 400,000 color point triples arranged in groups of three Fluorescent strips or fluorescent dots, each with a red, green and blue luminous stripes or dots are.
the curved shadow mask is in or welded onto the mask frame. This is with modern Color picture tubes also made of thin sheet metal.
the shadow mask with Frame and suspension must be at least so stable that the Picture tube a maximum permitted acceleration of 35g he wears. Because iron-nickel alloys are many times more expensive than iron, the mask frame (or frame) is made Iron is made, while the mask is made of an iron-nickel alloy consists.
EP-A1 063 322 refers to iron mask with iron frame
the mask is welded outside the frame. It can be on one previously necessary manufacturing step (temperature treatment (Stabilization) in a continuous furnace).
temperature treatment Stabilization
These weld spots must within a certain height range of the mask edge which, like the other range information from the Length of the mask diagonal is dependent.
For decoupling There are also notches, recesses or sags provided which is located at the corners of the mask Welds on both sides of mechanical stresses relieve. One above the same serves the same purpose Edge of mask attached all around bead.
a total of 12 are used to connect the frame and mask Spot welds used to make the mask shirt on the outside weld the frame.
the welding spots are there each at the corners and roughly in the middle of each side.
the weld spots placed as close as possible to the free edge of the mask shirt and the cutouts each take up almost the entire area between the welding points.
the object of the invention is for mask-frame combinations with masks made of iron-nickel alloys and frames made of iron, where the mask shirt is on the inside of the frame permanent deformation of the mask is caused by welding Avoid weakening the stiffness in order to avoid To be able to elastically compensate for differences in length, while maintaining stability to mechanical To be able to withstand stress.
the stability of the connection between the mask and the frame can be achieved with a minimum number of welding spots can be achieved, if the weld spots in addition to the corners and each one in the middle of the shorter side near the Be attached in the middle of the longer sides.
a mask-frame combination in the figures shown, which consists of a mask frame 1 and a mask 2nd consists.
the mask that has holes or mask slits 3 is provided to only some of the electrons for the Fluorescent strips or fluorescent dots of the primary colors to let through on the inside of the front screen glass preferably made of an iron-nickel alloy with 36% nickel (FeNi36, Invar) with a small coefficient of thermal expansion produced.
the coefficient of expansion of this Iron-nickel alloy is up to about 60 ° C less than one tenths below that of iron. Depending on the exact Alloy composition of this iron-nickel alloy lies the Curie point is usually between 200 and 300 ° C.
the mask-frame combination is attached to the side Thermal bimetal springs attached to the picture tube pan ("buttoned in").
One of the springs is also with one Centering disc provided.
the thin slit or shadow mask is easy to handle Welded mask frame.
the masks can be used both over the Frame put up and welded outside (in this Embodiment inside).
the weld spots between the mask and frame then connect the mask shirt and the inner surface of the frame.
the total of ten welding spots SP1 to SP10 sit at the with an arrowhead in Fig. 1st marked positions. Accordingly, there are four Spot welds (SP2, SP4, SP7, SP9) in the corners of the Combination arranged.
Two more welding spots SP5, SP6 and SP10, SP1 sit on each of the long sides and are arranged near the middle.
the mask shirt 7 (in Fig. 2 is the height compared to Width exaggerated) is around the middle Spot welds on the shorter sides with notches and Provide decoupling slots so that the Mask shirt areas around the weld spots relatively free can move.
Notches 10 and decoupling slots 11 are provided and on the side of the notches facing away from the weld 10 additional decoupling slots at some distance appropriate.
Both the notches 10 and the Decoupling slots 11 preferably have one arched shape. Likewise, all forms be used, which increases with depth, i.e. increasing distance from the outer edge of the mask, in their Taper width.
the depth (H2-H3) of the notches 10 Particularly important for a particularly good fulfillment the stability and elasticity requirement is the depth (H2-H3) of the notches 10. It has been found that a relationship between the height of the mask shirt H2 and the remaining height H3 of the mask shirt at the location of the maximum depth of the notches 10 of 3: 1 the conflicting requirements particularly well met.
width ratios of the notches 10 also adhere to certain size ratios.

Landscapes

Electrodes For Cathode-Ray Tubes (AREA)

EP97101498A 1997-01-30 1997-01-30 Tube image couleur avec un ensemble masque-cadre Expired - Lifetime EP0858094B1 (fr)

Priority Applications (3)

Application Number	Priority Date	Filing Date	Title
EP97101498A EP0858094B1 (fr)	1997-01-30	1997-01-30	Tube image couleur avec un ensemble masque-cadre
DE59707047T DE59707047D1 (de)	1997-01-30	1997-01-30	Farbbildröhre mit einer Masken-Rahmen-Kombination
US09/015,969 US6043597A (en)	1997-01-30	1998-01-30	Color picture tube having a mask of a first material connected to a frame of a second material by plural weld spots

Applications Claiming Priority (1)

Application Number	Priority Date	Filing Date	Title
EP97101498A EP0858094B1 (fr)	1997-01-30	1997-01-30	Tube image couleur avec un ensemble masque-cadre

Publications (2)

Publication Number	Publication Date
EP0858094A1 true EP0858094A1 (fr)	1998-08-12
EP0858094B1 EP0858094B1 (fr)	2002-04-17

Family

ID=8226425

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
EP97101498A Expired - Lifetime EP0858094B1 (fr)	1997-01-30	1997-01-30	Tube image couleur avec un ensemble masque-cadre

Country Status (3)

Country	Link
US (1)	US6043597A (fr)
EP (1)	EP0858094B1 (fr)
DE (1)	DE59707047D1 (fr)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
US6246164B1 (en) *	1999-04-01	2001-06-12	Thomson Licensing S.A.	Color picture tube having a low expansion tension mask attached to a higher expansion frame
US6559585B2 (en) *	2000-05-26	2003-05-06	Kabushiki Kaisha Toshiba	Color cathode ray tube

Citations (5)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
FR2134436A1 (fr) *	1971-04-28	1972-12-08	Ergon Spa
DE2549789A1 (de) *	1975-11-06	1977-05-18	Licentia Gmbh	Lochmasken-farbbildkathodenstrahlroehre
DE2549732A1 (de) *	1975-11-06	1977-05-26	Licentia Gmbh	Farbwahlmaskenanordnung fuer eine farbbildkathodenstrahlroehre
EP0063322A1 (fr)	1981-04-18	1982-10-27	International Standard Electric Corporation	Ensemble masque-cadre et son procédé de fabrication
EP0518249A2 (fr)	1991-06-13	1992-12-16	Nokia (Deutschland) GmbH	Ensemble d'un masque et d'un cadre pour tube à rayons cathodique couleur

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
US3855493A (en) *	1972-10-30	1974-12-17	Gen Electric	Shadow mask and process for manufacture
JPH07235270A (ja) *	1994-02-21	1995-09-05	Mitsubishi Denki Eng Kk	シャドウマスク型カラー受像管

1997
- 1997-01-30 EP EP97101498A patent/EP0858094B1/fr not_active Expired - Lifetime
- 1997-01-30 DE DE59707047T patent/DE59707047D1/de not_active Expired - Fee Related
1998
- 1998-01-30 US US09/015,969 patent/US6043597A/en not_active Expired - Fee Related

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
FR2134436A1 (fr) *	1971-04-28	1972-12-08	Ergon Spa
DE2549789A1 (de) *	1975-11-06	1977-05-18	Licentia Gmbh	Lochmasken-farbbildkathodenstrahlroehre
DE2549732A1 (de) *	1975-11-06	1977-05-26	Licentia Gmbh	Farbwahlmaskenanordnung fuer eine farbbildkathodenstrahlroehre
EP0063322A1 (fr)	1981-04-18	1982-10-27	International Standard Electric Corporation	Ensemble masque-cadre et son procédé de fabrication
EP0518249A2 (fr)	1991-06-13	1992-12-16	Nokia (Deutschland) GmbH	Ensemble d'un masque et d'un cadre pour tube à rayons cathodique couleur

Also Published As

Publication number	Publication date
EP0858094B1 (fr)	2002-04-17
US6043597A (en)	2000-03-28
DE59707047D1 (de)	2002-05-23

Publication	Publication Date	Title
DE602005001816T2 (de)	2007-12-06	Farbbildröhre
DE1762984B1 (de)	1971-11-18	Kathodenstrahlroehre zur Farbbildwiedergabe
DE69400361T2 (de)	1997-01-16	Farbkathodenstrahlröhre
DE69525851T2 (de)	2002-11-28	Farbkathodenstrahlröhre
DE2129728C3 (de)	1980-08-28	Rechteckige Lochmaskenanordnung für eine Farbbildröhre
DE69400119T2 (de)	1996-08-29	Farbkathodenstrahlröhre
DE69626380T2 (de)	2003-08-28	Farbbildröhre mit verbesserter Schattenmaske-Rahmenverbindung
DE69501628T2 (de)	1998-08-06	Lochmaske mit spannrahmenanordnung für eine kathodenstrahlröhre
DE69127534T2 (de)	1998-04-02	Farbkathodenstrahlröhre
EP0518249B1 (fr)	1995-09-13	Ensemble d'un masque et d'un cadre pour tube à rayons cathodique couleur
DE69820530T2 (de)	2004-06-09	Schattenmaske und Farbkathodenstrahlröre
DE60023865T2 (de)	2006-07-27	Farbbildröhre mit einer gespannten maske niedrigerer ausdehnung verbunden mit einem rahmen höherer ausdehnung
EP0858094B1 (fr)	2002-04-17	Tube image couleur avec un ensemble masque-cadre
DE69407018T2 (de)	1998-05-07	Farbkathodenstrahlröhre
DE69503269T2 (de)	1998-12-17	Schattenmaske für Farbkathodenstrahlröhre
DE3885478T2 (de)	1994-03-24	Farbbildröhre.
DE3752031T2 (de)	1997-07-31	Schattenmaske und deren Herstellungsverfahren
DE69816378T2 (de)	2004-05-27	Farbkathodenstrahlröhre
DE69111491T2 (de)	1996-01-04	Farbbildröhre mit Schattenmaske/Rahmenträger.
DE69931319T2 (de)	2006-11-02	Schattenmaske für eine Farb-Kathodenstrahlröhre
DE60034773T2 (de)	2008-01-17	Farbkathodenstrahlröhre mit einer gespannten schattenmaske mit niedrigem ausdehnungskoeffizienten auf einer rahmenstruktur mit höherem ausdehnungskoeffizienten
DD238473A5 (de)	1986-08-20	Schlitzmaskenelektronenkanone fuer katodenstrahlroehren
DE69602712T2 (de)	1999-11-11	Farbkathodenstrahlröhre
DE69530618T2 (de)	2004-03-11	Farb-kathodenstrahlröhre
DE60023277T2 (de)	2006-07-20	Farbbildröhre mit einer an einem rahmen angebrachten gespannten maske

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