DK141568B - Gas discharge panel and process for its manufacture. - Google Patents
Gas discharge panel and process for its manufacture. Download PDFInfo
- Publication number
- DK141568B DK141568B DK250473AA DK250473A DK141568B DK 141568 B DK141568 B DK 141568B DK 250473A A DK250473A A DK 250473AA DK 250473 A DK250473 A DK 250473A DK 141568 B DK141568 B DK 141568B
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- DK
- Denmark
- Prior art keywords
- conductors
- plate
- plates
- rods
- separating
- Prior art date
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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
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11C—STATIC STORES
- G11C11/00—Digital stores characterised by the use of particular electric or magnetic storage elements; Storage elements therefor
- G11C11/21—Digital stores characterised by the use of particular electric or magnetic storage elements; Storage elements therefor using electric elements
- G11C11/26—Digital stores characterised by the use of particular electric or magnetic storage elements; Storage elements therefor using electric elements using discharge tubes
- G11C11/28—Digital stores characterised by the use of particular electric or magnetic storage elements; Storage elements therefor using electric elements using discharge tubes using gas-filled tubes
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J9/00—Apparatus or processes specially adapted for the manufacture, installation, removal, maintenance of electric discharge tubes, discharge lamps, or parts thereof; Recovery of material from discharge tubes or lamps
- H01J9/24—Manufacture or joining of vessels, leading-in conductors or bases
- H01J9/26—Sealing together parts of vessels
- H01J9/261—Sealing together parts of vessels the vessel being for a flat panel display
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Plasma & Fusion (AREA)
- Computer Hardware Design (AREA)
- Manufacturing & Machinery (AREA)
- Gas-Filled Discharge Tubes (AREA)
- Manufacture Of Electron Tubes, Discharge Lamp Vessels, Lead-In Wires, And The Like (AREA)
- Joining Of Glass To Other Materials (AREA)
- Vessels And Coating Films For Discharge Lamps (AREA)
Description
(11) FREMLÆfifiELSESSKRIFT 1^1568 DANMARK mlnt C|3 H 81 J 17/49 »(21) Ansøgning nr. 2504/73 (22) Indtovwret døn 7» ®a^J 1973 (23) LebecfcB 7· maj 1973 (44) Antegningen fremlagt og .(11) PREFERRED EMBODIMENT 1 ^ 1568 DENMARK mlnt C | 3 H 81 J 17/49 »(21) Application No. 2504/73 (22) Inaugural death 7» ®a ^ J 1973 (23) LebecfcB 7 · May 1973 (44 ) The note presented and.
fremlauuslissslufftet offantttgg)ort den ^1· aPr- 1 9oUsuction nozzle offantttgg) ort on ^ 1 · aPr- 1 9oU
DIREKTORATET FORDIRECTORATE OF
PATENT- OG VAREMÆRKEVÆSENET (30) Prioritet begæret ft* denPATENT AND TRADEMARKET SYSTEM (30) Priority requested *
8. maj 1972, 251483, USMay 8, 1972, 251483, US
(71) INTERNATIONAL BUSINESS MACHINES CORPORATION, Armonk, N.Y. 10504, US.(71) INTERNATIONAL BUSINESS MACHINES CORPORATION, Armonk, N.Y. 10504, US.
(72) Opfinder: Michael John Costa, 39 Hagen Drive, Poughkeepsie, N.Y.(72) Inventor: Michael John Costa, 39 Hagen Drive, Poughkeepsie, N.Y.
12603, US: James Court TJreeeon Jr., 40 Whitney Drive, Woodstock, N.Y. 12498, US: Peter Hans Haberland, 15 Oriole Drive, Woodstock, N.Y. 12498, US.12603, US: James Court TJreeeon Jr., 40 Whitney Drive, Woodstock, N.Y. 12498, US: Peter Hans Haberland, 15 Oriole Drive, Woodstock, N.Y. 12498, US.
(74) Fuldmægtig under tagene behandling;(74) Clerk under the roofs processing;
Ingeniørfirmaet Budde, Schou & Co.____ (64) Gasudladningspanel og fremgangsmåde til dets fremstilling.The engineering company Budde, Schou & Co .____ (64) Gas discharge panel and process for its manufacture.
Opfindelsen angår gasudladningspaneler til indikator-og/eller hukommelsesapparater af den i indledningen til krav 1 angivne art samt en fremgangsmåde til deres fremstilling. Ifølge opfindelsen opnås adskillelse af pladerne ved hjælp af afstandsgitre, der ikke forstyrrer udladningsbanerne.This invention relates to gas discharge panels for indicator and / or memory devices of the kind set forth in the preamble of claim 1, and to a method for their preparation. According to the invention separation of the plates is achieved by means of spacers which do not interfere with the discharge paths.
Det er kendt at fremstille sådanne gasudladningspaneler med store indikeringsområder, ved hvilke glaspladerne, der overlej rer hinanden, adskilles nøjagtigt ved hjælp af adskillende *'τ midler. Disse adskillende midler omfatter to sæt skillestænger af ikke metallisk materiale og samme tykkelse, hvor de nævnte to sæt skillestænger er anbragt i netform mellem glaspladerne- Dette arrangement har, foruden at det er kompliceret i fremstillingsmæssig henseende, den ulempe, at krydsningspunkterne mellem leder- 2 141568 sættene nøje må indpasses over rudemønsteret. Endvidere bevirker den mindste fejl i netformen en direkte sænkning af gasudladningspanelets kvalitet.It is known to produce such gas discharge panels with large indicative ranges at which the superposed glass panels are accurately separated by means of separating means. These separating means comprise two sets of separating bars of non-metallic material and the same thickness, wherein said two sets of separating bars are arranged in mesh form between the glass sheets. This arrangement, in addition to being complex in manufacturing, has the disadvantage that the junctions between conductors 2 141568 the sets must be carefully fitted over the pane pattern. Furthermore, the smallest defect in the grid shape causes a direct lowering of the gas discharge panel quality.
Der foreligger således et behov for et skillearrangement, der giver nøjagtig adskillelse mellem glaspladerne i gasudladningsapparater med store indikeringsarealer, og som ikke har de ovenfor nævnte ulemper. Det er derfor af tekniske og æstetiske hensyn ønskeligt at minimere størrelsen af skilleelementerne således, at de bliver mindre forstyrrende og mindre iøjen-faldende inden for indikeringsområdet, samtidig med at der opnås større frihed, hvad angår placeringen.Thus, there is a need for a separator arrangement which provides accurate separation between the glass plates in gas discharge apparatus with large indication areas and which does not have the disadvantages mentioned above. Therefore, for technical and aesthetic reasons, it is desirable to minimize the size of the dividing elements so that they become less disruptive and less conspicuous in the indication range while providing greater freedom in location.
Dette formål kan ifølge opfindelsen realiseres ved tilvejebringelse af et forbedret gasudladningspanel som angivet i krav 1's kendetegnende del og en fremgangsmåde som angivet i krav 4's kendetegnende del. Ved dette apparat og ifølge den forbedrede adskillelsesmåde holdes pladerne nøjagtigt det i forvejen konstante stykke adskilt ved hjælp af to sæt lige store krydsende skillestænger, der er anbragt vinkelret på hinanden i overlappende, gitterlignende berøring inden i den lukkede, gasfyldte beholder. Skillestængerne i et sæt berører den dielektriske belægning over de parallelle ledere på en af pladerne, og skillestængerne i det andet sæt berører den dielektriske belægning over de vinkelret anbragte, parallelle ledere på den anden plade. Eftersom disse skillestænger har en diameter, der svarer til kun halvdelen af det nævnte på forhånd valgte konstante stykke, bliver strømmen af gaspartikler mellem de områder, der adskilles af skillestængerne, ikke forstyrret i noget omfang af betydning.This object can be realized according to the invention by providing an improved gas discharge panel as set forth in the characterizing part of claim 1 and a method as set forth in the characterizing part of claim 4. In this apparatus and according to the improved method of separation, the plates are kept exactly the pre-constant piece separated by two sets of equally intersecting dividing bars arranged perpendicular to each other in overlapping, grating-like contact within the closed gas-filled container. The separating bars in one set touch the dielectric coating over the parallel conductors on one of the plates, and the separating bars in the other set touch the dielectric coating over the perpendicularly parallel conductors on the other plate. Since these separating bars have a diameter corresponding to only half of the pre-selected constant piece, the flow of gas particles between the areas separated by the separating bars is not disturbed to any significant extent.
De skillestænger, der hører sammen med lederne på hver plade, er anbragt mellem og strækker sig parallelt med lederne på denne bestemte plade. Skillestængernes diameter varierer fortrinsvis mellem 0,05 mm og 0,09 mm afhængigt af, hvilken af de herefter beskrevne udførelsesformer, der er aktuel.The separating bars associated with the conductors of each plate are disposed between and extending parallel to the conductors of that particular plate. The diameter of the separating bars preferably varies between 0.05 mm and 0.09 mm depending on which of the embodiments described herein is applicable.
Opfindelsen forklares i det følgende nærmere under henvisning til tegningen, på hvilken fig. 1 i perspektiv skematisk viser et delvis adskilt gasudladningspanel ifølge opfindelsen, fig. 2 i betydelig større målestok et snit efter linien 2-2 i fig. 1 og en foretrukken udførelsesform for opfindelsen, 3 141568 fig. 3 i noget overdreven målestok et snit, der viser opstillingen til et opvarmningssmeltetrin, der resulterer i den i fig. 2 viste udformning, fig. 4 et delsnit, der svarer til fig. 2, men viser en anden udførelsesform for opfindelsen.The invention will now be explained in more detail with reference to the drawing, in which: FIG. 1 is a schematic perspective view of a partially separated gas discharge panel according to the invention; 2 on a considerably larger scale, a section along the line 2-2 in FIG. 1 and a preferred embodiment of the invention; FIG. 3 is a sectional view, on a somewhat exaggerated scale, showing the arrangement of a heating melting stage resulting in the embodiment of FIG. 2; FIG. 4 is a sectional view similar to FIG. 2, but shows another embodiment of the invention.
Det gasudladningsindikator- og/eller hukommelsesapparat, der er opbygget ifølge en første udførelsesform og er vist i fig.The gas discharge indicator and / or memory apparatus constructed according to a first embodiment and shown in FIG.
1 til 3, indeholder en øvre glasplade 10 og en nedre glasplade 11, der hver især . omfatter et underlag 12, 13, på hvis frie overflader der er anbragt passiverede metalliserede ledersæt 14, 15.1 to 3, an upper glass plate 10 and a lower glass plate 11 each contain. comprises a substrate 12, 13, on whose free surfaces are disposed passivated metallized conductor sets 14, 15.
Som vist omfatter sættene 14, 15 hver især et antal parallelle ledere, hvor lederne i sættet 14 er anbragt vinkelret på lederne i sættet 15. Enderne af ledersættene på hver plade strækker sig ud over kanten af den anden plade for at forenkle tiislhtningen til skiftende ledere i sættet på konventionel måde. Sam det bedst ses i fig. 2 og 3, er lederne i hvert sæt 14, 15 dækket med transparente dielektriske belægninger 16, 17, fortrinsvis af glas, hvilket giver plane overflader 18, 19.As shown, the sets 14, 15 each comprise a plurality of parallel conductors, the conductors of the set 14 being perpendicular to the conductors of the set 15. The ends of the conductor sets on each plate extend beyond the edge of the second plate to simplify the alignment of changing conductors. in the set in conventional manner. Sam best seen in fig. 2 and 3, the conductors in each set 14, 15 are covered with transparent dielectric coatings 16, 17, preferably of glass, giving flat surfaces 18, 19.
Pladerne 10, 11 sammensmeltes til en sammensat struktur på følgende måde. Usmeltet, smelteligt tærfcningsmateriale, fortrinsvis i form af stænger 20 af glas med lavt blødgøringspunkt, anbringes i et vindueskarmlignende rammemønster på den nedre plade 11fs flade 19. Disse stænger 20 har samme diameter, og denne er betydeligt større end den nøjagtige, på forhånd valgte adskillelse, med hvilken pladerne til sidst skal sammenføjes. Ifølge opfindelsen anbringes derefter to sæt lige store øvre og nedre skiIlestænger 21, 22 dækkende hinanden i et to-lags rudemønster inden for rammen.The plates 10, 11 are fused to a composite structure as follows. Unmelted, melt-melting material, preferably in the form of low softening glass bars 20, is placed in a window frame-like frame pattern on the lower plate 11f's surface 19. These bars 20 have the same diameter and are significantly larger than the precise, preselected separation. , with which the plates are eventually to be joined. According to the invention, then, two sets of equal upper and lower sheave bars 21, 22 are interconnected in a two-layer pane pattern within the frame.
De nedre stænger 22.er anbragt med ensartet mellemrum og strækker sig parallelt med nabopar af lederne i sættet 15 og hviler på den plane flade 19, medens de øvre stænger 22 dækker og hviler på de nedre stænger 22 med på forhånd fastlagte sideværts mellemrum, som det skal beskrives i det følgende. Som det fremgår af fig. er den samlede højde af de overlappende stænger 21, 22 betydeligt mindre end tætningsstængerne 20’s diameter.The lower rods 22. are arranged at uniform intervals and extend parallel to neighboring pairs of the conductors in the set 15 and rest on the flat surface 19, while the upper rods 22 cover and rest on the lower rods 22 with predetermined lateral spaces which it will be described in the following. As shown in FIG. the overall height of the overlapping rods 21, 22 is considerably smaller than the diameter of the sealing rods 20.
Den øvre plade 10 placeres nu på den nedre plade 11 med den øvre plades overflade 18 i berøring med tætningsstængerne 20 og anbragt således i tværretningen, at de øvre skillestænger strækker sig parallelt med og med lige stor afstand fra, men i hovedsagen under par af op til liggende ledere i sættet 14 afhængigt af ovenfor nævnte forud fastlagte fordeling af stængerne 21 på stængerne 22. Stængerne 21, 22, der fortrinsvis er fremstillet 4 1A1568 af glas, har betydeligt højere blødgøringspunkt end tætningsstæn-geme. Får den udsmeltede opstilling af enkeltdele ved et efterfølgende arbejdstrin opvarmes i en vakuumovn til en temperatur, der er tilstrækkelig til at bevirke smeltning og udflydning af tætningsmaterialet i stængerne 20, sænkes den øvre plade 10 gradvis fra den i fig. 3 viste stilling, indtil dens overflade 18 berører de øvre skillestænger 21 som vist i fig. 2.The upper plate 10 is now placed on the lower plate 11 with the upper plate surface 18 in contact with the sealing rods 20 and arranged in the transverse direction so that the upper separating bars extend parallel to and with equal distance from, but substantially below pairs of upwards. to lying conductors in the set 14, depending on the aforementioned predetermined distribution of the rods 21 to the rods 22. The rods 21, 22, which are preferably made of glass 1A1568, have a significantly higher softening point than sealing rods. If, in a subsequent working step, the molten array of individual parts is heated in a vacuum furnace to a temperature sufficient to cause melting and flow of the sealing material in the rods 20, the upper plate 10 is gradually lowered from that of FIG. 3 until its surface 18 touches the upper separating bars 21 as shown in FIG. 2nd
Opstillingen afkøles nu, hvorved det nu udflydte tætningsmateriale, der betegnes 20’ i fig. 2, smelter sammen med overfladerne 18, 19 på de respektive dielektriske lag 16, 17 og dermed sammensmelter pladerne 10 og 11 til en integreret opbygning med en uigennemtrængelig beholder 23, der langs sin periferi er tætnet med materialet 20'. Ifølge konventionel praksis evakueres denne beholder 23 nu gennem et udblæsningsrør 24 i fig. 1. Herefter fyldes beholderen med tændbar gas under passende tryk, hvorpå røret tætnes til permanent indelukning af gassen i beholderen.The arrangement is now cooled, whereby the now flowing sealing material, designated 20 'in FIG. 2, merges with the surfaces 18, 19 of the respective dielectric layers 16, 17, and thus the plates 10 and 11 merge into an integral structure with an impervious container 23 sealed along the periphery with the material 20 '. According to conventional practice, this container 23 is now evacuated through an exhaust pipe 24 in FIG. 1. Next, the container is filled with flammable gas under appropriate pressure, and the tube is sealed to permanently enclose the gas in the container.
Det fremgår således, at pladerne ifølge en egenskab ved opfindelsen holdes i en nøjagtig,på forhånd fastlagt afstand fra hinanden ved hjælp af rudemønsteret af overlappende skillestænger 21, 22. På grund af, at disse skillestænger har en diameter, der svarer til kun halvdelen af den samlede ensartede afstand mellem fladerne 18, 19, kan gaspartikler, methastabile ioner, protoner, osv. strømme uden nævneværdig hindring mellem de forskellige områder, som beholderen 23 opdeles i ved skiIlestængernes gitterarrangement.Thus, it will be seen that the plates according to a feature of the invention are kept at an exact, predetermined distance from each other by the pane pattern of overlapping dividers 21, 22. Because these dividers have a diameter corresponding to only half of the the total uniform distance between the surfaces 18, 19, gas particles, methastable ions, protons, etc. can flow without appreciable obstruction between the various regions into which the container 23 is divided by the grid bars of the disc bars.
I den foretrukne udførelsesform, der er vist i fig. 2, har tætningsstængerne 20 fortrinsvis en diameter på ca. 1 mm, og skillestængerne 21, 22 har fortrinsvis en diameter på ca. 0,05 mm.In the preferred embodiment shown in FIG. 2, the sealing bars 20 preferably have a diameter of approx. 1 mm, and the separating bars 21, 22 preferably have a diameter of approx. 0.05 mm.
De dielektriske belægninger 16, 17 har en blødgørelsestemperatur, der ligger over den temperatur, som opbygningen opvarmes til under den ovenfor beskrevne smelteoperation, så at stængerne 21, 22 berører, men ikke gennemtrænger de dielektriske overflader 18, 19.The dielectric coatings 16, 17 have a softening temperature which is above the temperature to which the structure is heated during the melting operation described above, so that the bars 21, 22 touch but do not penetrate the dielectric surfaces 18, 19.
Ved denne opbygning gøres skillestængernes ringe størrelse dem i hovedsagen uskelnelige fra glaspladerne, hvilket er ønskeligt af æstetiske hensyn. Endvidere bliver blokeringen af indikerings-områderne ved krydsningspunkterne for de respektive stænger 21, 22 gjort mindst mulig ved disse stængers fordeling mellem lederne for at undgå, at lysvirkningen hæmmes ved tænding af celler, der udgøres af ledere i nærheden af disse stænger.In this construction, the small size of the dividing rods makes them essentially indistinguishable from the glass plates, which is desirable for aesthetic reasons. Furthermore, the blocking of the indication areas at the intersection points of the respective bars 21, 22 is made least possible by the distribution of these bars between the conductors to prevent the light effect from being inhibited by ignition of cells constituted by conductors in the vicinity of these bars.
5 1415685 141568
Herefter skal en alternativ udførelsesform beskrives.Next, an alternative embodiment will be described.
Den anbringelse og den tætningsmetode, der anvendes Ifølge denne udførelsesform, se flg. 4, svarer til det i forbindelse rød udførelsesformen 1 fig. 1 til 5 beskrevne rød følgende undtagelser:The arrangement and sealing method used In accordance with this embodiment, see Fig. 4, is similar to that in connection with the red embodiment 1 fig. The red exceptions described in 1 to 5 are as follows:
Ved den nu aktuelle udførelsesform har de øvre og nedre skille-stænger 21T, 22f noget større diameter, f.eks. 0,09 mm, og belægningerne 16T, 17' består af et dielektrisk materiale med en blød-gøringstemperatur, der ligger under den temperatur, som opstillingen opvarmes til under smelteprocessen. Resultatet bliver, at skiIlestængerne 21r, 22r gennemtrænger de dielektriske belægninger indtil de berører overfladerne af de respektive underlag 12, 15. Således bestemmes den konstante afstand mellem pladerne af berøringen mellem de respektive underlag og skillestængerne 21f, 22r i stedet for før de dielektriske belægninger. Den virkelige ensartede højde i beholderen 25 vil imidlertid stadig svare til den nøjagtigt fikserede afstand mellem de plane dele af fladerne l8r, 19’. Det turde være klart, at lederkonfigurationen og sammensætningen, den specielle ovnopbygning og de til smelteoperationen anvendte temperaturer samt det apparatur, med hvilket beholderen 25 evakueres og derefter fyldes rød tændbar gas, kan være i overensstemmelse rød den tidligere kendte teknik. De er derfor ikke beskrevet mere detaljeret, end det er nødvendigt for forståelsen af opfindelsen.In the present embodiment, the upper and lower dividers 21T, 22f have a somewhat larger diameter, e.g. 0.09 mm and the coatings 16T, 17 'consist of a dielectric material having a softening temperature below the temperature to which the set is heated during the melting process. As a result, the disc bars 21r, 22r penetrate the dielectric coatings until they touch the surfaces of the respective substrates 12, 15. Thus, the constant distance between the plates of the contact between the respective substrates and the separator bars 21f, 22r is determined instead of before the dielectric coatings. However, the true uniform height of the container 25 will still correspond to the precisely fixed distance between the planar portions of the surfaces 18, 19 '. It should be understood that the conductor configuration and composition, the special furnace structure and the temperatures used for the melt operation as well as the apparatus with which the container 25 is evacuated and then filled with red ignitable gas may be in accordance with the prior art. Therefore, they are not described in more detail than is necessary for the understanding of the invention.
Claims (4)
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US00251483A US3808497A (en) | 1972-05-08 | 1972-05-08 | Gaseous discharge device and method of spacing the plates thereof |
| US25148372 | 1972-05-08 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| DK141568B true DK141568B (en) | 1980-04-21 |
| DK141568C DK141568C (en) | 1980-10-06 |
Family
ID=22952158
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DK250473AA DK141568B (en) | 1972-05-08 | 1973-05-07 | Gas discharge panel and process for its manufacture. |
Country Status (11)
| Country | Link |
|---|---|
| US (1) | US3808497A (en) |
| JP (1) | JPS5333236B2 (en) |
| CA (1) | CA989461A (en) |
| CH (1) | CH545524A (en) |
| DK (1) | DK141568B (en) |
| ES (1) | ES414477A1 (en) |
| FR (1) | FR2183692B1 (en) |
| GB (1) | GB1438142A (en) |
| IT (1) | IT979180B (en) |
| NL (1) | NL174101C (en) |
| SE (1) | SE390848B (en) |
Families Citing this family (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4045200A (en) * | 1975-01-02 | 1977-08-30 | Owens-Illinois, Inc. | Method of forming glass substrates with pre-attached sealing media |
| DE2505513B1 (en) * | 1975-02-10 | 1976-08-05 | Siemens Ag | LIQUID CRYSTAL CELL WITH SOLDERED GLASS LOCK |
| JPS5922337B2 (en) * | 1975-09-17 | 1984-05-25 | ニホンアイ ビ− エム カブシキガイシヤ | Method of manufacturing gas panel equipment |
| FR2393386A1 (en) * | 1977-06-01 | 1978-12-29 | Commissariat Energie Atomique | ELECTROLYTIC DISPLAY CELL WITH POROUS SCREEN |
| JPS55153919A (en) * | 1979-05-18 | 1980-12-01 | Hitachi Ltd | Manufacture of liquid crystal display element |
| US5675212A (en) * | 1992-04-10 | 1997-10-07 | Candescent Technologies Corporation | Spacer structures for use in flat panel displays and methods for forming same |
| DE69430568T3 (en) * | 1993-02-01 | 2007-04-26 | Candescent Intellectual Property Services, Inc., San Jose | FLAT SCREEN WITH INTERNAL STRUCTURE |
| US5811926A (en) * | 1996-06-18 | 1998-09-22 | Ppg Industries, Inc. | Spacer units, image display panels and methods for making and using the same |
| US5834891A (en) * | 1996-06-18 | 1998-11-10 | Ppg Industries, Inc. | Spacers, spacer units, image display panels and methods for making and using the same |
| FR2755294A1 (en) * | 1996-10-25 | 1998-05-01 | Pixtech Sa | METHOD AND DEVICE FOR ASSEMBLING A FLAT VISUALIZATION SCREEN |
| FR2781308A1 (en) * | 1998-07-15 | 2000-01-21 | Thomson Plasma | Display panel spacers, especially for plasma display panels, are produced by applying deposits of height defining the panel sheet spacing onto one of the panel sheets |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| BE755591Q (en) * | 1967-11-24 | 1971-02-15 | Owens Illinois Inc | GASEOUS DISCHARGE MEMORIZATION AND REPRODUCTION DEVICE AND ITS OPERATING MODE |
| US3602756A (en) * | 1969-12-22 | 1971-08-31 | Engelhard Min & Chem | Gas ionization display device |
-
1972
- 1972-05-08 US US00251483A patent/US3808497A/en not_active Expired - Lifetime
-
1973
- 1973-02-16 IT IT20475/73A patent/IT979180B/en active
- 1973-03-21 FR FR7311019A patent/FR2183692B1/fr not_active Expired
- 1973-04-04 SE SE7304751A patent/SE390848B/en unknown
- 1973-04-11 JP JP4052873A patent/JPS5333236B2/ja not_active Expired
- 1973-04-12 CH CH529273A patent/CH545524A/xx not_active IP Right Cessation
- 1973-04-12 NL NLAANVRAGE7305102,A patent/NL174101C/en active Search and Examination
- 1973-04-13 CA CA169,266A patent/CA989461A/en not_active Expired
- 1973-04-25 GB GB1972073A patent/GB1438142A/en not_active Expired
- 1973-05-07 DK DK250473AA patent/DK141568B/en not_active IP Right Cessation
- 1973-05-07 ES ES414477A patent/ES414477A1/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| JPS4924357A (en) | 1974-03-04 |
| DE2317598A1 (en) | 1973-11-22 |
| GB1438142A (en) | 1976-06-03 |
| NL7305102A (en) | 1973-11-12 |
| US3808497A (en) | 1974-04-30 |
| SE390848B (en) | 1977-01-24 |
| IT979180B (en) | 1974-09-30 |
| DE2317598B2 (en) | 1976-11-18 |
| DK141568C (en) | 1980-10-06 |
| CA989461A (en) | 1976-05-18 |
| JPS5333236B2 (en) | 1978-09-13 |
| NL174101C (en) | 1984-04-16 |
| FR2183692B1 (en) | 1976-05-21 |
| ES414477A1 (en) | 1976-02-01 |
| CH545524A (en) | 1974-01-31 |
| FR2183692A1 (en) | 1973-12-21 |
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