EP0205166A2 - Tube image - Google Patents

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Info

Publication number: EP0205166A2
Authority: EP; European Patent Office
Prior art keywords: display device; image display; security film; frame; fluorescent screen
Prior art date: 1985-06-14
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

EP86107963A

Other languages

German (de)

English (en)

Other versions

EP0205166A3 (en

EP0205166B1 (fr

Inventor

Kurt-Manfred Tischer

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.)

Panasonic Holdings Corp

Original Assignee

Nokia Unterhaltungselektronik Deutschland GmbH

Standard Elektrik Lorenz AG

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.)

1985-06-14

Filing date

1986-06-11

Publication date

1986-12-17

1986-06-11 Application filed by Nokia Unterhaltungselektronik Deutschland GmbH, Standard Elektrik Lorenz AG filed Critical Nokia Unterhaltungselektronik Deutschland GmbH

1986-12-17 Publication of EP0205166A2 publication Critical patent/EP0205166A2/fr

1987-12-23 Publication of EP0205166A3 publication Critical patent/EP0205166A3/de

1989-08-30 Application granted granted Critical

1989-08-30 Publication of EP0205166B1 publication Critical patent/EP0205166B1/fr

Status 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
- H01J29/86—Vessels; Containers; Vacuum locks
- H01J29/87—Arrangements for preventing or limiting effects of implosion of vessels or containers
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J2229/00—Details of cathode ray tubes or electron beam tubes
- H01J2229/87—Means for avoiding vessel implosion
- H01J2229/875—Means substantially covering the output face, e.g. resin layers, protective panels

Definitions

the invention relates to an image display device according to the preamble of claim 1.
DE-AS 11 1 87 742 discloses a method for producing a coating from a plastic sheet on the end face of a cathode ray tube.
the cathode ray tube has a cone with a piston neck as the back and a curved shield trough on the front.
the plastic sheet is applied to the outside of the curved screen trough as an anti-explosion protection.
a tension band is placed around the circumference of the tube and provided with a tensile stress of approximately 450 kg.
This type of explosion protection is only possible in the case of image display devices with a curved screen trough with side parts.
the security against implosion is achieved in that the prestressed glass system of the image display device is brought into a tension-free state by mechanical pressure due to the tensioning strap.
the invention has for its object to provide an implosion protection for an image display device with a flat fluorescent screen.
the image display device contains on the back a metallic trough 1, the edges 2 of which are angled outwards and serve as a support for a spacer frame 3.
the flat glass fluorescent screen 4 is arranged on the spacer frame 3.
the cathodes, the control structure and the luminescent layer are not shown since these details are not required for the description of the protection against implosion in the image display device.
the fluorescent screen 4 carries a security film 5, the edge of which extends to the side surfaces 9 of the fluorescent screen 4.
the security film 5 can be glued to the whole surface or only on the side surfaces 9 of the fluorescent screen 4.
An acrylate can be used as an adhesive.
a security film is understood to be a film that is elastic and can hold back glass parts when the fluorescent screen breaks.
the security film can, for example, consist of polyester (polyethylene terephthalate) and be 25 to 60 ⁇ m thick. Such a security film is available under the name "Security film Tesa 4592".
a frame 6 is loosely placed around the luminescent screen 4, the upper edge of which is bent in the direction of the outer surface 10 of the luminescent screen 4 and which projects somewhat onto the outer surface 10 of the luminescent screen.
the space between the frame 6 and the side surfaces 9 of the fluorescent screen or the security film 5 is filled with a tough elastic potting compound 7.
the potting compound 7 can for example consist of polyurethane. Since the security film 5 is usually not scratch-resistant and solvent-resistant, it is covered by a thin glass pane 8.
the security film 5 or the glass pane 8 can be colored and thus serve as a contrast pane.
the edge of the frame 6 bent towards the outer surface 10 of the fluorescent screen 4 can leave an intermediate space to the security film 5, which is then filled by the sealing compound 7.
the edge of the frame 6 can, however, as shown on the left side of the fluorescent screen 4, rest directly on the security film.
the potting compound 7 can be introduced from below into the space between the fluorescent screen 4 and the frame 6. Holes 11 can also be present in the frame 6, through which the casting compound 7 is introduced.
the security film can be replaced by an applied plastic layer (not shown) if the approximately 1 to 2 mm thick glass pane covers the area between the upper edge of the frame. A composite system similar to the safety glass is then created.

Landscapes

Vessels, Lead-In Wires, Accessory Apparatuses For Cathode-Ray Tubes (AREA)
Cathode-Ray Tubes And Fluorescent Screens For Display (AREA)
Transforming Electric Information Into Light Information (AREA)

EP86107963A 1985-06-14 1986-06-11 Tube image Expired EP0205166B1 (fr)

Applications Claiming Priority (2)

Application Number	Priority Date	Filing Date	Title
DE19853521315 DE3521315A1 (de)	1985-06-14	1985-06-14	Bildwiedergabevorrichtung
DE3521315		1985-06-14

Publications (3)

Publication Number	Publication Date
EP0205166A2 true EP0205166A2 (fr)	1986-12-17
EP0205166A3 EP0205166A3 (en)	1987-12-23
EP0205166B1 EP0205166B1 (fr)	1989-08-30

Family

ID=6273241

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
EP86107963A Expired EP0205166B1 (fr)	1985-06-14	1986-06-11	Tube image

Country Status (5)

Country	Link
US (1)	US4709272A (fr)
EP (1)	EP0205166B1 (fr)
JP (1)	JPH0754674B2 (fr)
CA (1)	CA1270891A (fr)
DE (2)	DE3521315A1 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
EP0387738A1 (fr) *	1989-03-13	1990-09-19	Matsushita Electric Industrial Co., Ltd.	Dispositif d'affichage à panneau plat
US4991304A (en) *	1987-06-11	1991-02-12	Renishaw	Workpiece inspection method
EP0527343A2 (fr) *	1991-08-14	1993-02-17	International Business Machines Corporation	Elément du type de plaque entouré d'une garniture sur ses faces latérales

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
JPS63198243A (ja) *	1987-02-12	1988-08-16	Mitsubishi Electric Corp	防爆形陰極線管
US5074644A (en) *	1987-09-18	1991-12-24	Pioneer Electronic Corporation	Rear projection television
US4992881A (en) *	1989-04-14	1991-02-12	Honeywell Inc.	Protective cover for flight instrument filter glass
US5072301A (en) *	1990-03-12	1991-12-10	Zenith Electronics Corporation	Apparatus and process for implosion protection in cathode ray tubes

Citations (3)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
DE1187742B (de) *	1961-11-13	1965-02-25	Rca Corp	Verfahren zur Herstellung eines UEberzugs aus einem Kunststoffblatt auf der Stirnflaeche einer Kathodenstrahlroehre
FR1477706A (fr) *	1966-03-10	1967-04-21	Saint Gobain	Perfectionnement à la fabrication des tubes cathodiques, notamment pour la télévision en couleurs
US4016364A (en) *	1975-10-20	1977-04-05	Zenith Radio Corporation	Color television picture tubes with improved implosion protection system

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
US3009017A (en) *	1953-05-22	1961-11-14	Libbey Owens Ford Glass Co	Laminated television screen
NL280647A (fr) *	1963-07-05	1964-12-10

1985
- 1985-06-14 DE DE19853521315 patent/DE3521315A1/de not_active Withdrawn
1986
- 1986-06-06 CA CA000510960A patent/CA1270891A/fr not_active Expired - Lifetime
- 1986-06-11 DE DE8686107963T patent/DE3665377D1/de not_active Expired
- 1986-06-11 EP EP86107963A patent/EP0205166B1/fr not_active Expired
- 1986-06-12 JP JP61135112A patent/JPH0754674B2/ja not_active Expired - Fee Related
- 1986-06-13 US US06/873,901 patent/US4709272A/en not_active Expired - Lifetime

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
DE1187742B (de) *	1961-11-13	1965-02-25	Rca Corp	Verfahren zur Herstellung eines UEberzugs aus einem Kunststoffblatt auf der Stirnflaeche einer Kathodenstrahlroehre
FR1477706A (fr) *	1966-03-10	1967-04-21	Saint Gobain	Perfectionnement à la fabrication des tubes cathodiques, notamment pour la télévision en couleurs
US4016364A (en) *	1975-10-20	1977-04-05	Zenith Radio Corporation	Color television picture tubes with improved implosion protection system

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
US4991304A (en) *	1987-06-11	1991-02-12	Renishaw	Workpiece inspection method
EP0387738A1 (fr) *	1989-03-13	1990-09-19	Matsushita Electric Industrial Co., Ltd.	Dispositif d'affichage à panneau plat
US5031788A (en) *	1989-03-13	1991-07-16	Matsushita Electric Industrial Co., Ltd.	Flat panel display device
US5085334A (en) *	1989-03-13	1992-02-04	Matsushita Electric Industrial Co., Ltd.	Flat panel display device
EP0527343A2 (fr) *	1991-08-14	1993-02-17	International Business Machines Corporation	Elément du type de plaque entouré d'une garniture sur ses faces latérales
EP0527343A3 (en) *	1991-08-14	1993-04-07	International Business Machines Corporation	Plate-shaped component surrounded by a sealing on its lateral faces
US5364673A (en) *	1991-08-14	1994-11-15	International Business Machines Corporation	Transparent plate-shaped component having a stepped edge totally surrounded by a seal

Also Published As

Publication number	Publication date
CA1270891A (fr)	1990-06-26
DE3665377D1 (en)	1989-10-05
DE3521315A1 (de)	1986-12-18
US4709272A (en)	1987-11-24
EP0205166A3 (en)	1987-12-23
JPS61288356A (ja)	1986-12-18
EP0205166B1 (fr)	1989-08-30
JPH0754674B2 (ja)	1995-06-07

Legal Events

Date	Code	Title	Description
1986-11-01	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
1986-12-17	AK	Designated contracting states	Kind code of ref document: A2 Designated state(s): DE FR GB IT NL
1987-11-03	PUAL	Search report despatched	Free format text: ORIGINAL CODE: 0009013
1987-12-23	AK	Designated contracting states	Kind code of ref document: A3 Designated state(s): DE FR GB IT NL
1988-06-29	17P	Request for examination filed	Effective date: 19880427
1988-11-02	RAP1	Party data changed (applicant data changed or rights of an application transferred)	Owner name: NOKIA GRAETZ GESELLSCHAFT MIT BESCHRAENKTER HAFTUN
1989-01-04	17Q	First examination report despatched	Effective date: 19881117
1989-07-15	GRAA	(expected) grant	Free format text: ORIGINAL CODE: 0009210
1989-08-30	AK	Designated contracting states	Kind code of ref document: B1 Designated state(s): DE FR GB IT NL
1989-09-29	ITF	It: translation for a ep patent filed	Owner name: JACOBACCI & PERANI S.P.A.
1989-10-05	REF	Corresponds to:	Ref document number: 3665377 Country of ref document: DE Date of ref document: 19891005
1989-11-01	GBT	Gb: translation of ep patent filed (gb section 77(6)(a)/1977)
1989-12-15	ET	Fr: translation filed
1990-01-03	RAP2	Party data changed (patent owner data changed or rights of a patent transferred)	Owner name: NOKIA UNTERHALTUNGSELEKTRONIK (DEUTSCHLAND) GMBH
1990-03-16	NLT2	Nl: modifications (of names), taken from the european patent patent bulletin	Owner name: NOKIA UNTERHALTUNGSELEKTRONIK (DEUTSCHLAND) GMBH T
1990-06-29	PLBE	No opposition filed within time limit	Free format text: ORIGINAL CODE: 0009261
1990-06-29	STAA	Information on the status of an ep patent application or granted ep patent	Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT
1990-08-16	26N	No opposition filed
1990-09-14	REG	Reference to a national code	Ref country code: FR Ref legal event code: CD
1990-10-01	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
1992-06-29	ITPR	It: changes in ownership of a european patent	Owner name: CAMBIO RAGIONE SOCIALE;NOKIA (DEUTSCHLAND) GMBH
1992-09-18	REG	Reference to a national code	Ref country code: FR Ref legal event code: CD
1993-06-30	ITTA	It: last paid annual fee
1993-08-16	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
1999-06-16	REG	Reference to a national code	Ref country code: GB Ref legal event code: 732E
1999-06-25	REG	Reference to a national code	Ref country code: FR Ref legal event code: TP
2002-01-01	REG	Reference to a national code	Ref country code: GB Ref legal event code: IF02
2002-04-02	NLS	Nl: assignments of ep-patents	Owner name: MATSUSHITA ELECTRIC INDUSTRIAL CO., LTD.
2002-04-10	REG	Reference to a national code	Ref country code: GB Ref legal event code: 732E
2003-04-25	REG	Reference to a national code	Ref country code: FR Ref legal event code: TP
2003-06-11	PGFP	Annual fee paid to national office [announced via postgrant information from national office to epo]	Ref country code: GB Payment date: 20030611 Year of fee payment: 18
2003-07-30	PGFP	Annual fee paid to national office [announced via postgrant information from national office to epo]	Ref country code: DE Payment date: 20030730 Year of fee payment: 18
2004-06-03	PGFP	Annual fee paid to national office [announced via postgrant information from national office to epo]	Ref country code: NL Payment date: 20040603 Year of fee payment: 19
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