EP0133492A2 - Panneau de décharge à gaz ayant un cadre d'espace - Google Patents

Panneau de décharge à gaz ayant un cadre d'espace Download PDF

Info

Publication number
EP0133492A2
EP0133492A2 EP84108495A EP84108495A EP0133492A2 EP 0133492 A2 EP0133492 A2 EP 0133492A2 EP 84108495 A EP84108495 A EP 84108495A EP 84108495 A EP84108495 A EP 84108495A EP 0133492 A2 EP0133492 A2 EP 0133492A2
Authority
EP
European Patent Office
Prior art keywords
frame
post
acceleration
space
gas discharge
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
EP84108495A
Other languages
German (de)
English (en)
Other versions
EP0133492B1 (fr
EP0133492A3 (en
Inventor
Wilhelm Huber
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.)
Siemens AG
Siemens Corp
Original Assignee
Siemens AG
Siemens Corp
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 Siemens AG, Siemens Corp filed Critical Siemens AG
Priority to AT84108495T priority Critical patent/ATE26627T1/de
Publication of EP0133492A2 publication Critical patent/EP0133492A2/fr
Publication of EP0133492A3 publication Critical patent/EP0133492A3/de
Application granted granted Critical
Publication of EP0133492B1 publication Critical patent/EP0133492B1/fr
Expired legal-status Critical Current

Links

Images

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J17/00—Gas-filled discharge tubes with solid cathode
    • H01J17/38—Cold-cathode tubes
    • H01J17/48—Cold-cathode tubes with more than one cathode or anode, e.g. sequence-discharge tube, counting tube, dekatron
    • H01J17/49—Display panels, e.g. with crossed electrodes, e.g. making use of direct current
    • H01J17/498—Display panels, e.g. with crossed electrodes, e.g. making use of direct current with a gas discharge space and a post acceleration space for electrons

Definitions

  • the invention relates to a display device according to the preamble of claim 1.
  • a display device according to the preamble of claim 1.
  • Such a plasma panel is described in DE-OS 29 52 528.
  • a gas discharge supplies electrons which are sent through selected holes in a control matrix into a post-acceleration room, where they absorb energies of a few kV and finally generate light spots on a phosphor layer.
  • the post-acceleration path is plasma-free, despite the high voltage present, for the following reason: for each gas, the ignition voltage V z depends on the product of the gas pressure p and the electrode distance d, such that V z initially drops steeply with increasing p ⁇ d, then a minimum passes through and then gradually increases again (“Paschen's Law"). This means that for a given gas with certain voltage and pressure values, discharge is prevented if the operating point is far enough in the left branch of the ignition curve, i.e. d has sufficiently small values.
  • the post-acceleration chamber is nowhere near as resistant to high voltages as the ignition voltage curve actually suggests.
  • the voltage is ramped up, flashovers are observed in the frame area, which spread relatively quickly and can cause considerable damage to the conductor structures.
  • the invention has for its object to form the spacer frame in a panel of the type mentioned in such a way that it insulates even better.
  • This object is achieved in that the frame has a rough surface at least on its inside.
  • “Rauh” means a shape deviation of at least fourth order (DIN 4760).
  • the proposed solution is based on the following observation:
  • a frame designed according to the invention is free of such burrs. Instead, its endangered surface has a specific microstructure that - obviously - results in a long effective insulation section, but does not contain any formations that could trigger a breakthrough. This Behavior has complex causes that cannot yet be completely overlooked; The fact is, however, that a conventional frame allows much higher voltages after the matting proposed here.
  • the surface to be treated is preferably roughened by a blasting technique, for example by bombardment with A1 2 0 3 or glass beads. It is advisable to proceed in two steps and to work first with pearls of larger diameter and then with smaller pearls. A blasted surface is clean; it no longer needs to be freed of residues that are known to have a significant impact on the rollover strength.
  • the rough frame surface is also provided with a conductive material, in such an amount that no continuous layer is formed.
  • a conductive material such as Cu.
  • Such an assignment is achieved when the surface is blasted with spheres that are already coated with the relevant material, such as Cu.
  • the relevant material such as Cu.
  • the fact that such a coating promotes short-circuit strength is probably due to the fact that it linearises the potential gradient along the frame surface in the manner of an extremely high-impedance surface resistance and thus prevents local increases in field strength.
  • the display shown contains a vacuum-tight, gas-filled envelope with a trough-like rear part 1 and a front plate 2 extending parallel to the trough bottom.
  • the inside of the envelope is divided by a control plate 3 parallel to the front plate into a rear gas discharge space 4 and a front post-acceleration space 5.
  • the control disk 3 carries row conductors 6 on its rear side and column conductors 7 running on its front side perpendicular to the row conductors. All conductors can be controlled individually; together they form a tax matrix.
  • each matrix element is the control disc and control structure formed in the matrix conductors is provided with a passage opening 8.
  • the control disk 3 is spaced from the front plate 2 by a spacer frame 12, which is connected on both sides in a vacuum-tight manner to the control disk or the front plate by a glass solder seam 13, 14.
  • the connection between the control disc and the tub is made via a glass solder seam 15.
  • the frame projects inward beyond the two glass solder seams 13, 14 and has a rounded profile with a rough surface there.
  • This frame can be produced rationally as follows: First, cut out a window from an approximately 1.1 mm thick soft glass pane with a diamond cutting disc. Then the inside of the frame thus obtained is rounded off with a blasting technique, matted and coated with Cu. For this purpose, the frame is first blasted with up to 120 ⁇ m thick Al 2 O 3 beads and then lapped with a beam of up to 60 ⁇ m thick glass beads. The glass beads are covered with Cu. Then you rinse the treated surface; a special cleaning process is not necessary.
  • Figures 2 and 3 give an impression of the structure of the rough frame surface. They have emerged from scanning electron microscope images on an Au-metallized surface and show the surface in a magnification of 400 or 2000 times. From these figures it can be estimated that the roughness depth of this shallow mountain range is on average between 10 ⁇ m and 15 ⁇ m and reaches a maximum of 40 ⁇ m (DIN 4768, sheet 1).
  • the invention is not limited to the exemplary embodiment shown. In the present context, it is only important to make the post-acceleration path short-circuit proof.
  • the gas discharge could also be generated in a different form - for example as a stationary transverse plasma - and / or the electrodes could be organized differently, for example to have the same conductors function as plasma cathodes and row conductors or to work with a deflection in the high-voltage room. That being said, other frame materials and / or other matting methods are also possible; Certain ceramics and special etching techniques would be conceivable. Otherwise, the person skilled in the art is at liberty to roughen the surfaces of these additional bodies in the same way in cases in which further spacing elements are provided in addition to the spacing frame. 13 claims 3 figures

Landscapes

  • Gas-Filled Discharge Tubes (AREA)
  • Manufacture Of Electron Tubes, Discharge Lamp Vessels, Lead-In Wires, And The Like (AREA)
EP84108495A 1983-08-03 1984-07-18 Panneau de décharge à gaz ayant un cadre d'espace Expired EP0133492B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT84108495T ATE26627T1 (de) 1983-08-03 1984-07-18 Gasentladungsanzeigevorrichtung mit einem abstandsrahmen und verfahren zur herstellung dieses rahmens.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3328036 1983-08-03
DE19833328036 DE3328036A1 (de) 1983-08-03 1983-08-03 Gasentladungsanzeigevorrichtung mit einem abstandsrahmen und verfahren zur herstellung dieses rahmens

Publications (3)

Publication Number Publication Date
EP0133492A2 true EP0133492A2 (fr) 1985-02-27
EP0133492A3 EP0133492A3 (en) 1985-04-10
EP0133492B1 EP0133492B1 (fr) 1987-04-15

Family

ID=6205680

Family Applications (1)

Application Number Title Priority Date Filing Date
EP84108495A Expired EP0133492B1 (fr) 1983-08-03 1984-07-18 Panneau de décharge à gaz ayant un cadre d'espace

Country Status (5)

Country Link
US (1) US4659963A (fr)
EP (1) EP0133492B1 (fr)
JP (1) JPS60100339A (fr)
AT (1) ATE26627T1 (fr)
DE (2) DE3328036A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4837685A (en) * 1987-02-18 1989-06-06 Myo-Tronics Research, Inc. Analog preprocessor for jaw tracking device

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61202553U (fr) * 1985-06-05 1986-12-19
DE4003889A1 (de) * 1990-02-09 1991-08-14 Herbert Lacker Einrichtung zur mechanischen bearbeitung von oberflaechen
KR930001176B1 (ko) * 1990-11-02 1993-02-20 삼성전관 주식회사 플라즈마 표시소자
JPH053006A (ja) * 1991-06-25 1993-01-08 Mitsubishi Electric Corp 発光素子
US5302881A (en) * 1992-06-08 1994-04-12 The United States Of America As Represented By The Secretary Of The Air Force High energy cathode device with elongated operating cycle time

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2135757A1 (de) * 1971-07-16 1973-02-01 Daimler Benz Ag Verfahren zur bearbeitung von oberflaechen
NL7512517A (nl) * 1975-10-27 1977-04-29 Philips Nv Werkwijze voor het vervaardigen van een gasont- ladingsweergavepaneel en aldus vervaardigd gas- ontladingsweergavepaneel.
GB2036416B (en) * 1978-10-18 1983-04-13 Hitachi Ltd Electron gun spark suppression arrangments
DE2952528C2 (de) * 1979-12-28 1985-10-10 Siemens AG, 1000 Berlin und 8000 München Gasentladungsanzeigevorrichtung

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4837685A (en) * 1987-02-18 1989-06-06 Myo-Tronics Research, Inc. Analog preprocessor for jaw tracking device

Also Published As

Publication number Publication date
DE3328036A1 (de) 1985-02-14
JPS60100339A (ja) 1985-06-04
US4659963A (en) 1987-04-21
DE3463199D1 (en) 1987-05-21
ATE26627T1 (de) 1987-05-15
EP0133492B1 (fr) 1987-04-15
EP0133492A3 (en) 1985-04-10

Similar Documents

Publication Publication Date Title
DE69832835T2 (de) Bilderzeugungsgerät
DE69824067T2 (de) Bilderzeugungsgerät
DE60217050T2 (de) Plasmabildschirm und Plasmaanzeigevorrichtung
DE4117518C2 (de) Vorrichtung zum Sputtern mit bewegtem, insbesondere rotierendem Target
DE68916875T2 (de) Bildanzeigegerät und Verfahren zur Herstellung desselben.
DE60036451T2 (de) Plasma-Anzeigetafel und Rücklichtvorrichtung mit Sekundärelektronen-Verstärkungsstruktur mit Kohlenstoff-Nanoröhren
DE3852775T2 (de) Wechselstrom-Plasma-Anzeigevorrichtung.
DE69732198T2 (de) Plasma-Anzeigetafel und Herstellungsverfahren derselben
DE2334288A1 (de) Flaches sichtgeraet
DE2647396A1 (de) Gasentladungspaneel
DE1958674B2 (de) Flächenhafte Gasentladungs-Anzeigevorrichtung zur farbigen Darstellung elektrischer Signale und Verfahren zur Herstellung dieser Vorrichtung
DE1589829A1 (de) Niederspannungs-Elektronenstrahl-Geraet
DE69916353T2 (de) Anzeigevorrichtung
EP0031921B1 (fr) Dispositif d'affichage à décharge à gaz comportant au moins un cadre d'écartement limitant l'espace de post-accélération
EP0133492B1 (fr) Panneau de décharge à gaz ayant un cadre d'espace
EP0002000A1 (fr) Dispositif d'affichage à décharge dans un gaz comprenant des éléments d'espacement et méthode de fabrication d'une structure d'éléments d'espacement et d'un tel dispositif d'affichage
DE3407197C2 (de) Kathodenstrahlröhre
DE4131806A1 (de) Entladungsroehre und verfahren zu deren herstellung
DE3036591A1 (de) Gasentladungsbildwiedergabepaneel mit hohlen kathoden
DE2460319A1 (de) Vielfarben-gasentladungsbildschirmbauelement
DE2747727A1 (de) Verfahren zur herstellung eines wechselstrom-betriebenen gasentladungsbildschirms
DE2615681C2 (de) Anzeigevorrichtung mit einem Gasentladungsraum als Elektronenquelle, mit einem Elektronennachbeschleunigungsraum und mit einem Leuchtschirm
DE2639033C3 (de) Bauteil in mit Ladungsträgerstrahlen arbeitenden elektrischen Vakuumgeräten und Verfahren zu dessen Herstellung
EP0162135A2 (fr) Dispositif d'affichage et méthode de fabrication
DE19830404B4 (de) Vorrichtung zur Sputterbeschichtung mit variierbarem Plasmapotential

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

PUAL Search report despatched

Free format text: ORIGINAL CODE: 0009013

AK Designated contracting states

Designated state(s): AT CH DE FR GB IT LI NL SE

AK Designated contracting states

Designated state(s): AT CH DE FR GB IT LI NL SE

17P Request for examination filed

Effective date: 19850426

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): AT CH DE FR GB IT LI NL SE

REF Corresponds to:

Ref document number: 26627

Country of ref document: AT

Date of ref document: 19870515

Kind code of ref document: T

REF Corresponds to:

Ref document number: 3463199

Country of ref document: DE

Date of ref document: 19870521

ET Fr: translation filed
ITF It: translation for a ep patent filed
PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: AT

Effective date: 19870718

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

Ref country code: SE

Effective date: 19870719

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

Ref country code: LI

Effective date: 19870731

Ref country code: CH

Effective date: 19870731

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

Ref country code: NL

Effective date: 19880201

NLV4 Nl: lapsed or anulled due to non-payment of the annual fee
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

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

Ref country code: FR

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 19880331

REG Reference to a national code

Ref country code: CH

Ref legal event code: PL

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

Ref country code: DE

Effective date: 19880401

26N No opposition filed
REG Reference to a national code

Ref country code: FR

Ref legal event code: ST

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

Ref country code: GB

Effective date: 19880718

GBPC Gb: european patent ceased through non-payment of renewal fee
EUG Se: european patent has lapsed

Ref document number: 84108495.7

Effective date: 19880901