EP1627407B1 - Plasmatafel mit zement-aufteilungsbarrieren - Google Patents

Plasmatafel mit zement-aufteilungsbarrieren Download PDF

Info

Publication number
EP1627407B1
EP1627407B1 EP04734527A EP04734527A EP1627407B1 EP 1627407 B1 EP1627407 B1 EP 1627407B1 EP 04734527 A EP04734527 A EP 04734527A EP 04734527 A EP04734527 A EP 04734527A EP 1627407 B1 EP1627407 B1 EP 1627407B1
Authority
EP
European Patent Office
Prior art keywords
barriers
cement
slab
mineral
display panel
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.)
Expired - Fee Related
Application number
EP04734527A
Other languages
English (en)
French (fr)
Other versions
EP1627407A2 (de
Inventor
Armand Bettinelli
Jean-Philippe Browaeys
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.)
Thomson Plasma SAS
Original Assignee
Thomson Plasma SAS
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 Thomson Plasma SAS filed Critical Thomson Plasma SAS
Publication of EP1627407A2 publication Critical patent/EP1627407A2/de
Application granted granted Critical
Publication of EP1627407B1 publication Critical patent/EP1627407B1/de
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Images

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
    • H01J11/20—Constructional details
    • H01J11/34—Vessels, containers or parts thereof, e.g. substrates
    • H01J11/36—Spacers, barriers, ribs, partitions or the like
    • 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
    • H01J9/241—Manufacture or joining of vessels, leading-in conductors or bases the vessel being for a flat panel display
    • H01J9/242—Spacers between faceplate and backplate
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J2211/00—Plasma display panels with alternate current induction of the discharge, e.g. AC-PDPs
    • H01J2211/20—Constructional details
    • H01J2211/34—Vessels, containers or parts thereof, e.g. substrates
    • H01J2211/36—Spacers, barriers, ribs, partitions or the like
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J2211/00—Plasma display panels with alternate current induction of the discharge, e.g. AC-PDPs
    • H01J2211/20—Constructional details
    • H01J2211/34—Vessels, containers or parts thereof, e.g. substrates
    • H01J2211/36—Spacers, barriers, ribs, partitions or the like
    • H01J2211/366—Spacers, barriers, ribs, partitions or the like characterized by the material
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J2217/00—Gas-filled discharge tubes
    • H01J2217/38—Cold-cathode tubes
    • H01J2217/49—Display panels, e.g. not making use of alternating current
    • H01J2217/492—Details
    • H01J2217/49207—Electrodes
    • H01J2217/4925—Mounting, supporting, spacing
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J2329/00—Electron emission display panels, e.g. field emission display panels
    • H01J2329/86—Vessels
    • H01J2329/8625—Spacing members
    • H01J2329/864—Spacing members characterised by the material

Definitions

  • the invention relates to a plasma panel comprising two slabs forming between them a sealed space which is filled with discharge gas and which is partitioned into discharge cells delimited between these slabs by barriers forming a network.
  • Such a panel is generally used for viewing images.
  • the cells are usually divided into rows and columns.
  • the barriers generally extend at least between the columns, sometimes even between the lines.
  • the height of the barriers generally corresponds to the distance between the slabs, so that the barriers also serve as spacers.
  • the slopes of the barriers and one of the slabs are generally covered with phosphors capable of emitting visible light under the excitation of plasma discharges; by adapting the composition of the discharge gas, it is also possible to directly obtain visible light without phosphors.
  • WO00 / 36625 discloses a manufacturing method in which the barriers are molded in a reverse polymer pattern made by photolithography; on page 8, lines 7 to 22, for making the barriers, the use of a molding paste comprising ceramic powders, glass frits, Portland cement or other metal oxide powders is described; the only example given at the end of the document precisely describes the use of a paste containing 40% by weight of cement (page 10, line 32) and paraffin oil as carrier fluid; after molding, the paraffin oil migrates into the photopolymerized material of the mold, thereby increasing the densification of the inorganic powder in the mold channels; a final heat treatment at 600 ° C makes it possible to eliminate the polymer from the mold and the paraffin oil, and to obtain the solidification, here by sintering, of the cement powder.
  • An object of the invention is to limit the number of heat treatments necessary to obtain a sufficient consolidation of the barriers, and / or to lower the temperature, or even to avoid these heat treatments.
  • the subject of the invention is a plasma panel comprising two slabs forming between them a sealed space which is filled with discharge gas and which is partitioned into discharge cells delimited between these slabs by barriers made of mineral material comprising a inorganic binder and a mineral filler, said inorganic binder being a hydraulic binder.
  • the inorganic binder is in the hydrated state and aggregates the mineral filler. To obtain this hydrated state, as illustrated below, it is therefore necessary to use water in the manufacturing steps of the plasma panel. It is the hydraulic binder in the hydrated state which is responsible for the consolidation of the barriers, which aggregates the grains of the inorganic filler, contrary to the barriers described in WO00 / 36625 where the skilled person understands that the effect consolidation is obtained by sintering grains of cement powder (or ceramic powder) and where, given the high processing temperatures, the cement is no longer in the hydrated state.
  • hydraulic binder a material which, when formed as a block from a powder, can be hardened by a hydration reaction: thus, by mixing a mineral filler powder adapted to a hydraulic binder powder, by forming this powder mixture for example by molding, the resulting form can be cured after hydration reaction.
  • water is added to the powder mixture before pouring the liquid mixture into a mold; the addition of water is what is usually called a mixing operation.
  • the cells in the panel are usually divided into rows and columns.
  • the barriers generally extend at least between the columns, sometimes even between the lines, in which case the barriers form a two-dimensional network.
  • the height of the barriers generally corresponds to the distance between the slabs.
  • the slopes of the barriers and one of the slabs are generally covered with phosphors capable of emitting visible light under the excitation of plasma discharges; by adapting the composition of the discharge gas, it is also possible to directly obtain visible light without phosphors.
  • Such a plasma panel generally comprises at least two electrode arrays arranged in such a way that each cell is traversed by an electrode of each array.
  • each slab supports at least one array of electrodes, so that the electrodes of a network carried by a slab cross the electrodes of a network carried by the other slab.
  • At least one of the networks is covered by a dielectric layer, so as to provide a memory effect that facilitates control of the panel.
  • Electrodes for triggering discharges do not include electrodes for triggering discharges; then microwave radiation is used to trigger the discharges; a single network of electrodes can nevertheless be used in this case for the addressing of the discharges.
  • the hydraulic binder is a cement, for example based on aluminates or aluminosilicates.
  • the weight proportion of inorganic filler in the inorganic material of the barriers is greater than or equal to 50%.
  • the inorganic filler comprises more than 50% by weight of silica and / or alumina.
  • the porosity of the barriers is greater than or equal to about 15%, preferably greater than 25%.
  • Each of the cells thus delimited by these barriers has a rectangular shape of approximately 850 ⁇ m x 290 ⁇ m.
  • the barrier paste is then applied to the slab, here by serigraphy of six superimposed layers; each screen printing pass is followed by drying at 110 ° C .; a slab is then obtained with a green barrier layer 150 ⁇ m thick.
  • a denser screen printing cloth for example 90 threads / cm, and a less viscous paste, for example of the order of 20 Pa.s, are used to obtain underlays. superficial smoothing at the surface of the barrier layer.
  • the slab is coated with this roller paste ("roller-coater" in English) and the layer applied is dried in a continuous-tunnel tunnel furnace provided with means for blowing and extracting air; a single pass then makes it possible to apply the 150 ⁇ m thick raw layer.
  • an abrasive material is projected onto the mask using a linear slit nozzle of length 200 mm; as abrasive material, use is made of a metal powder marketed by FUJI Company, referenced S9 grade 1000; during the so-called "sanding" projection operation, the sanding nozzle is kept at approximately 10 cm from the slab, moves along the barriers to be formed at a speed of 50 mm / min. approximately, and the raw slab during sanding moves in a direction perpendicular to that of the barriers at the speed of 70 mm / min. ; the sanding pressure is of the order of 0.04 MPa; the flow rate of metal powder is about 2500 g / min.
  • the mask On the top of the green barriers thus formed, the mask is then removed by spraying an aqueous solution at 35 ° C containing 1% sodium hydroxide (NaOH); after rinsing with water and air knife drying at 50 ° C, a slab is obtained with a network of green barriers of height of the order of 150 ⁇ m, width of about 100 ⁇ m at the base and 70 ⁇ m at the top. These barriers comprise about 4% by weight of organic resin.
  • a sealant paste is then deposited on the periphery of the rear slab thus obtained; this seal is here based on a fusible glass impasted in a cellulosic solution giving a viscosity of the order of 100 Pa.s.
  • a heat treatment is then carried out in order to remove the organic binder from the barriers and the phosphor layers: first temperature rise at 10 ° C./min. up to 350 ° C and then first stage of 20 minutes at 350 ° C, second temperature rise at 10 ° C / min. up to 480 ° C, then second stage of 20min at 480 ° C, and finally lowering temperature to 10 ° C / min.
  • the hardening treatment of the barriers is then carried out, a hardening which is obtained according to the invention by a hydration reaction of the cement which therefore requires the use of water at this stage of the process: after heat treatment, the slab obtained is scrolled under a spray of water for 30 minutes, then the slab is dried by air knife at room temperature, then by air knife at 105 ° C. According to an alternative hardening treatment, the slab is immersed in water for 6 hours. According to another variant of hardening treatment, the slab is placed under water vapor pressure under appropriate conditions of temperature and duration to obtain the hardening, ie setting, of the cement.
  • a rear slab is obtained with a network of hardened barriers 3 coated with phosphor layers 4R, 4G, 4B.
  • the heat treatment of the process which has just been described serves only to eliminate the organic binders and not to harden the barriers as in the prior art, it is advantageous to shorten the duration of this treatment, in particular by reducing the residence times. bearing or even increasing speeds rise in temperature in certain temperature ranges; using vitreous mineral binders as in the prior art, the required dwell times would have been in the order of 30 minutes, instead of 20 minutes here; the shortening of the heat treatment times, or even the lowering of the maximum temperatures during the treatment, have a significant economic advantage.
  • the organic binder removal operation is combined with the hardening operation of the barriers: first temperature rise at 10 ° C./min. up to 350 ° C and first stage of 30 minutes at 350 ° C, passage of moist air obtained by bubbling air into a water tank maintained at 80 ° C, second temperature rise to 10 ° C / min. up to 480 ° C, then second stage of 30min at 480 ° C, and finally lowering temperature to 10 ° C / min up to 350 ° C, then passage to dry air until complete cooling of the slab.
  • a conventional front slab 5 is assembled on the rear slab according to the invention (see the two arrows designating the assembly in FIG. 2), the two slabs are sealed by treatment. At 400 ° C., the air contained between the slabs was evacuated by pumping, the panel filled with discharge gas under low pressure, and the pumping opening was sealed.
  • the front slab 5 conventionally comprises two coplanar electrode arrays X, Y.
  • the plasma panel thus obtained shown in plan view in FIG. 1, comprises two slabs forming between them a sealed space which is filled with discharge gas and which is partitioned into discharge cells 6R, 6G, 6B delimited by the barriers. 3, which are, according to the invention, hardened mineral material, that is to say aggregated, by a hydraulic binder which is in the hydrated state.
  • the plasma panel thus obtained has good mechanical properties, particularly at the level of the barriers: no crushing of the barriers is observed.
  • a mineral material of barriers based on Portland cement instead of using a mineral material of barriers based on Portland cement, it is possible to use a mineral material further comprising a mineral filler, such as alumina or silica, or any other material compatible with the manufacture and operation of a plasma panel.
  • a mineral filler such as alumina or silica, or any other material compatible with the manufacture and operation of a plasma panel.
  • the hydration of the hydraulic binder therefore serves, according to the invention, to aggregate this mineral filler.
  • a mixture of 50% of the previously described cement and 50% of silica powder is used; as silica, there is for example a silica cristobalite type whose specific surface area is less than 10 m 2 / g and whose average particle size is less than 10 microns, typically of the order of 5 microns; for example, the reference M4000 of the Sifraco Company is chosen.
  • the barriers obtained also have good mechanical properties; thanks to the high porosity of the barriers, it greatly reduces the pumping time required to evacuate the air contained between the slabs.
  • a second family of methods of manufacturing a plasma panel according to the invention will now be described.
  • this second family of processes there are no longer any organic resins in the raw layers of barriers, which makes it possible to completely avoid heat treatment at high temperature, at least at the level of the manufacture of the rear slab.
  • the cells of the panel are rectangular.
  • the assembly is then returned so that the gravity puts in support the mold and its barriers on the rear face;
  • the set is then placed in an atmosphere at 40 ° C.
  • the mold can be removed by removing the mold. This can then be cleaned with a high-pressure water jet.
  • the slab coated with its underlayer and its barriers is stored for a further 4 hours in an atmosphere saturated with moisture to perfect the setting reaction of the cement and thus obtain a hydraulic binder in the hydrated state which aggregates the mineral filler of the barriers. and consolidates them. Then the slab is passed through a controlled passage oven at 115 ° C to remove the residual water.
  • a suspension is prepared containing 70 g of phosphor powder dispersed in 130 g of a mixture of glycol ethers selected for their boiling point and their viscosity so as to obtain the temporary suspension of the phosphors without the use of resins. .
  • Colloidal suspensions of silica (or others) can however be used as a thickener if necessary.
  • a sealant paste is then deposited on the periphery of the rear slab thus obtained; this seal is here based on a glass with a very low melting point in a solution similar to that of phosphors giving a viscosity of about 80 Pa.s. It is then dried at 120 ° C.
  • a conventional front slab is assembled on the rear slab according to the invention, the two slabs are sealed by heat treatment adapted to obtain at least partial melting of the sealing glass. evacuate the air contained between the slabs by pumping, the discharge gas panel is filled under low pressure, and the pumping opening is sealed.
  • the plasma panel thus obtained has good mechanical properties, particularly at the level of the barriers: no crushing of the barriers is observed.
  • the hydraulic binder of the barriers remained in the hydrated state despite the heat treatments.
  • the method according to the second family of embodiments of the invention therefore makes it possible to produce plasma panel slabs which carry the barriers without ever exceeding 250 ° C., which is very advantageous economically and to maintain the barriers in the state hydrated according to the invention.
  • a sealing gasket based on sealing glue resistant to a temperature of 250 ° C. available on the market, which makes it possible to seal the two slabs by heat treatment at only 250 ° C. VS ; in this case, thanks to the invention, none of the manufacturing steps of the panel exceeds 250 ° C, which makes it easier to maintain the hydraulic binder barriers in the hydrated state, which advantageously limits any risk of degradation of the mechanical properties of the hydraulic binder of the barriers.
  • cements which, after setting, can withstand the temperatures of the treatments thermal still necessary for the manufacture of the panel; other types of hydraulic binders than cement are usable without departing from the invention.
  • the present invention applies to any type of plasma panel whose cells are compartmentalized by barriers; these plasma panels may be coplanar type, matrix type, or radiofrequency excitation or microwave.

Claims (7)

  1. Plasmapaneel mit zwei Platten, die zwischen sich einen dichten Zwischenraum einschließen, der mit Entladungsgas gefüllt ist und in Entladungszellen (6R, 6G, 6B) aufgeteilt ist, die zwischen diesen Platten durch Barrieren (3) aus einem mineralischen Material begrenzt sind, das ein mineralisches Bindemittel und einen mineralischen Füllstoff enthält, wobei das mineralische Bindemittel ein hydraulisches Bindemittel ist, dadurch gekennzeichnet, dass das mineralische Bindemittel im hydratisierten Zustand ist und den mineralischen Füllstoff aggregieren lässt.
  2. Paneel nach Anspruch 1, dadurch gekennzeichnet, dass das hydraulische Bindemittel ein Zement ist.
  3. Paneel nach Anspruch 2, dadurch gekennzeichnet, dass der Zement auf Basis von Aluminaten oder Aluminosilicaten ist.
  4. Paneel nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass der Gewichtsanteil des mineralischen Füllstoffs in dem mineralischen Material größer als oder gleich 50 % ist.
  5. Paneel nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass der mineralische Füllstoff über 50 Gewichtsprozent Siliciumdioxid und/oder Aluminiumoxid enthält.
  6. Paneel nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass die Porosität der Barrieren größer als oder gleich ca. 15 % ist.
  7. Paneel nach Anspruch 6, dadurch gekennzeichnet, dass die Porosität der Barrieren größer als 25 % ist.
EP04734527A 2003-05-27 2004-05-24 Plasmatafel mit zement-aufteilungsbarrieren Expired - Fee Related EP1627407B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR0306383A FR2855644A1 (fr) 2003-05-27 2003-05-27 Panneau a plasma dont les barrieres de partionnement sont en ciment
PCT/EP2004/050905 WO2004107381A2 (fr) 2003-05-27 2004-05-24 Panneau a plasma dont les barrieres de partionnement sont en ciment

Publications (2)

Publication Number Publication Date
EP1627407A2 EP1627407A2 (de) 2006-02-22
EP1627407B1 true EP1627407B1 (de) 2007-03-14

Family

ID=33427455

Family Applications (1)

Application Number Title Priority Date Filing Date
EP04734527A Expired - Fee Related EP1627407B1 (de) 2003-05-27 2004-05-24 Plasmatafel mit zement-aufteilungsbarrieren

Country Status (8)

Country Link
US (1) US7710033B2 (de)
EP (1) EP1627407B1 (de)
JP (1) JP4633726B2 (de)
KR (1) KR101026462B1 (de)
CN (1) CN100474488C (de)
DE (1) DE602004005328T2 (de)
FR (1) FR2855644A1 (de)
WO (1) WO2004107381A2 (de)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2009193748A (ja) * 2008-02-13 2009-08-27 Panasonic Corp プラズマディスプレイパネル
JP2009302518A (ja) * 2008-05-13 2009-12-24 Toto Ltd 静電チャック
US9792463B2 (en) 2011-07-28 2017-10-17 Kenneth L. Miller Combination magnetic stripe and contactless chip card reader

Family Cites Families (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH03151433A (ja) * 1989-11-08 1991-06-27 Denki Kagaku Kogyo Kk 建設部材の補強方法
US5486126A (en) * 1994-11-18 1996-01-23 Micron Display Technology, Inc. Spacers for large area displays
US5704820A (en) * 1995-01-31 1998-01-06 Lucent Technologies Inc. Method for making improved pillar structure for field emission devices
JP3980735B2 (ja) * 1998-02-04 2007-09-26 株式会社タイカ ディスプレイパネル用基板の製造方法
JPH11283512A (ja) * 1998-03-27 1999-10-15 Kyocera Corp プラズマ表示装置用基板及びその製造方法
JP2000021335A (ja) * 1998-06-30 2000-01-21 Toshiba Corp パネル型真空気密容器
WO2000036625A1 (en) * 1998-12-17 2000-06-22 E.I. Du Pont De Nemours And Company Barrier rib formation for plasma display panels
US6620370B2 (en) * 1998-12-21 2003-09-16 Corning Incorporated Method for manufacturing opaque rib structures for display panels
FR2792454B1 (fr) * 1999-04-15 2001-05-25 Thomson Plasma Procede de fabrication d'un panneau a plasma
FR2818798B1 (fr) * 2000-12-22 2003-02-21 Thomson Multimedia Sa Procede de fabrication d'un reseau de barrieres en materiau mineral sur une dalle pour panneau de visualisation a plasma
US6637213B2 (en) * 2001-01-19 2003-10-28 Crane Plastics Company Llc Cooling of extruded and compression molded materials
DE60230875D1 (de) * 2001-06-29 2009-03-05 Thomson Plasma Platte für plasmaschirm mit verstärkten porösen barrieren
US7261771B2 (en) * 2002-01-09 2007-08-28 Nanostrata Inc. Method of controlling the viscosity of a cementitious mixture using oppositely-charged polyelectrolytes

Also Published As

Publication number Publication date
WO2004107381A3 (fr) 2005-02-10
DE602004005328D1 (de) 2007-04-26
US7710033B2 (en) 2010-05-04
WO2004107381A2 (fr) 2004-12-09
EP1627407A2 (de) 2006-02-22
CN100474488C (zh) 2009-04-01
CN1795524A (zh) 2006-06-28
JP2007523442A (ja) 2007-08-16
JP4633726B2 (ja) 2011-02-16
FR2855644A1 (fr) 2004-12-03
DE602004005328T2 (de) 2007-12-20
US20070024203A1 (en) 2007-02-01
KR101026462B1 (ko) 2011-04-01
KR20060007438A (ko) 2006-01-24

Similar Documents

Publication Publication Date Title
FR2788878A1 (fr) Procede de fabrication d'un panneau d'affichage et dispositif d'affichage
EP1627407B1 (de) Plasmatafel mit zement-aufteilungsbarrieren
US5941043A (en) Large-format fireclay refractory brick and method for its production
FR2752849A1 (fr) Procede de formation de couches fluorescentes, et pates et matiere fluorescentes correspondantes
EP1415316B1 (de) Platte für plasmaschirm mit verstärkten porösen barrieren
US7473151B2 (en) Method for manufacturing a substrate for a flat panel display including forming grooves in a surface
US6527606B1 (en) Process for the manufacture of a plasma panel
US7131880B2 (en) Process for manufacturing barriers for a plasma display panel
WO1999059926A1 (fr) Four de fusion, notamment a verre, et son utilisation
JP2007523442A6 (ja) セメント分割隔壁を含むプラズマパネル
MXPA05012701A (en) Plasma panel comprising cement partition barriers
FR2826776A1 (fr) Procede de fabrication d'une dalle pour panneau a plasma dotee de barrieres formees par projection d'un materiau abrasif
WO2002058096A2 (fr) Dalle arriere pour ecran de visualisation a plasma, procede de realisation et ecran la comportant
FR2798509A1 (fr) Melange pour realiser des electrodes et procede de formation d'electrodes sur un substrat transparent
Kim et al. 42.1: Invited Paper: Cost Effective Technologies for Barrier Rib Processing of HD PDPs
FR2813431A1 (fr) Procede de fabrication d'une dalle dotee d'un reseau de barrieres et application a la fabrication d'un panneau a plasma
FR2816754A1 (fr) Panneau a plasma utilisant des poudres a grains creux dans sa structure
JPH0929638A (ja) 厚膜パターン形成方法
FR2787632A1 (fr) Procede de fabrication d'un panneau d'affichage au plasma et panneau d'affichage au plasma realise par ledit procede
FR2857368A1 (fr) Poudre luminescente

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

17P Request for examination filed

Effective date: 20051121

AK Designated contracting states

Kind code of ref document: A2

Designated state(s): DE FR GB

RBV Designated contracting states (corrected)

Designated state(s): DE FR GB

DAX Request for extension of the european patent (deleted)
RBV Designated contracting states (corrected)

Designated state(s): DE FR GB

GRAP Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOSNIGR1

GRAS Grant fee paid

Free format text: ORIGINAL CODE: EPIDOSNIGR3

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

REG Reference to a national code

Ref country code: GB

Ref legal event code: FG4D

Free format text: NOT ENGLISH

REF Corresponds to:

Ref document number: 602004005328

Country of ref document: DE

Date of ref document: 20070426

Kind code of ref document: P

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

Effective date: 20070405

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

26N No opposition filed

Effective date: 20071217

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

Ref country code: GB

Payment date: 20140527

Year of fee payment: 11

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

Ref country code: DE

Payment date: 20140523

Year of fee payment: 11

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

Ref country code: FR

Payment date: 20140516

Year of fee payment: 11

REG Reference to a national code

Ref country code: DE

Ref legal event code: R119

Ref document number: 602004005328

Country of ref document: DE

GBPC Gb: european patent ceased through non-payment of renewal fee

Effective date: 20150524

REG Reference to a national code

Ref country code: FR

Ref legal event code: ST

Effective date: 20160129

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

Ref country code: GB

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

Effective date: 20150524

Ref country code: DE

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

Effective date: 20151201

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: 20150601