EP1536453A2 - Lampe à décharge munie d'au moins une électrode externe et procédé pour sa fabrication - Google Patents

Lampe à décharge munie d'au moins une électrode externe et procédé pour sa fabrication Download PDF

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Publication number
EP1536453A2
EP1536453A2 EP04021715A EP04021715A EP1536453A2 EP 1536453 A2 EP1536453 A2 EP 1536453A2 EP 04021715 A EP04021715 A EP 04021715A EP 04021715 A EP04021715 A EP 04021715A EP 1536453 A2 EP1536453 A2 EP 1536453A2
Authority
EP
European Patent Office
Prior art keywords
laminate
electrode
discharge lamp
discharge vessel
microns
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.)
Withdrawn
Application number
EP04021715A
Other languages
German (de)
English (en)
Other versions
EP1536453A3 (fr
Inventor
Lothar Dr. Hitzschke
Frank Dr. Vollkommer
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.)
Osram GmbH
Original Assignee
Patent Treuhand Gesellschaft fuer Elektrische Gluehlampen mbH
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 Patent Treuhand Gesellschaft fuer Elektrische Gluehlampen mbH filed Critical Patent Treuhand Gesellschaft fuer Elektrische Gluehlampen mbH
Publication of EP1536453A2 publication Critical patent/EP1536453A2/fr
Publication of EP1536453A3 publication Critical patent/EP1536453A3/fr
Withdrawn legal-status Critical Current

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Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J61/00—Gas-discharge or vapour-discharge lamps
    • H01J61/02—Details
    • H01J61/30—Vessels; Containers
    • H01J61/305—Flat vessels or containers
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J65/00—Lamps without any electrode inside the vessel; Lamps with at least one main electrode outside the vessel
    • H01J65/04—Lamps in which a gas filling is excited to luminesce by an external electromagnetic field or by external corpuscular radiation, e.g. for indicating plasma display panels
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J65/00—Lamps without any electrode inside the vessel; Lamps with at least one main electrode outside the vessel

Definitions

  • the invention is based on a discharge lamp, in which on the outside the discharge vessel at least one electrode, hereinafter also shortening called outer electrode, is arranged.
  • Such discharge lamps fall under the more general term “dielectric Barrier discharge lamps (DBD lamps) ", where here the wall the discharge vessel for the respective on the outside of the discharge vessel arranged electrode acts as a dielectric barrier.
  • the shape of the Discharge vessel plays in this context at most a subordinate Role.
  • tubular lamp types the For example, in office automation (OA) for copiers, fax machines and Scanners are used, as well as flat lamp types, which, inter alia, in the general lighting, for film lights as well as backlighting for Liquid crystal screens (LCD) are used.
  • OA office automation
  • LCD Liquid crystal screens
  • the discharge vessel consists of a flat bottom plate and a trough-shaped Front panel with a flat central area, both panels in the surrounding edge region are gas-tightly closed with each other.
  • On the Outside of the bottom plate are strip-shaped electrodes made of aluminum glued. This is especially true for large area flat lamps with numerous strip-shaped electrodes, for example a typical 42 "flat lamp Piece, not practical.
  • the object of the present invention is to provide a discharge lamp provide at least one outer electrode, which is easier to manufacture is. Another aspect is the improved reliability of the discharge lamp.
  • the advantage of the solution according to the invention is that the laminate prefabricate and then completely on an outside of the discharge vessel stick on.
  • the method is also good for a automated mass production.
  • the production of the lamp thereby cheaper.
  • This solution is particularly advantageous for discharge lamps with several strip-shaped electrodes, e.g. at the in of the aforementioned US 5,994,849 disclosed flat lamp, because then All electrodes with the laminate in a single step the discharge vessel are glued on.
  • the adhesive can be separated directly before sticking the laminate on a designated area of the discharge vessel or on the laminate itself. But to simplify the lamp manufacturing, it can also be advantageous be when the laminate is already provided with an adhesive layer.
  • the adhesive layer preferably protected with a cover, the first immediately is removed before sticking the laminate. So that the adhesive layer when removing the cover does not accidentally dissolves from the laminate, points the adhesive layer preferably comprises a stabilizing agent, for example embedded in the adhesive layer fibers. Alternatively, it is suitable as an adhesive layer also a thin, serving as a stabilizing agent film, the two sides coated with adhesive.
  • the adhesive layer covers all cavities between fills the electrode tracks, so that when sticking as possible no air pockets arise. If larger air pockets form, At this point, part of the electrode tracks rises from the outside of the discharge vessel, which in the worst case to the discharge this point is missing.
  • an adhesive has proven, as in the Tape tesa 4980 from Tesa AG is used. Good results were achieved with adhesive layers, the respective thickness in the range between about 40 to 200 microns, preferably between about 60 to 100 microns. It has surprisingly been found that no undesirable large Voltage drops across the electrodes occur.
  • the laminate is oriented so that the at least one conductor track-like Electrode between the relevant outside of the discharge vessel and the carrier film is arranged.
  • This has the advantage that the carrier film except as a carrier at the same time as a protective film against external Actions and protection against contact acts.
  • the laminate is flexible. This can be done by suitable Choice of material and thickness of the carrier film and the electrode web (s) laminated thereon achieve.
  • the carrier film have electrically insulating Plastics, in particular the materials polyethylene naphthalate (PEN) or Polyester (PET) but also polyimides (e.g., Kapton) have been found suitable.
  • the thickness of the carrier film is a few microns to a few hundred Micrometer, preferably in the range between about 5 microns and 200 microns, more preferably between about 20 microns and 100 microns.
  • the least a conductor-like electrode consists of an electrically conductive Material, in particular of metal, e.g. Copper or aluminum.
  • Your thickness is preferably in the range between about 5 microns and 40 microns, more preferably between about 5 microns and 20 microns.
  • the resulting flexibility of the Laminate makes it possible, preferably an integral feed line for the at least to provide an electrode.
  • the lamp is the free end of the foil-like supply line either directly or by means of a connector connected to the supply end with the Output connected to an electrical supply unit. Is advantageous in any case, that to the usual soldering a separate supply line the discharge vessel can be dispensed with.
  • the width of the electrode tracks is of the electrical requirements of Lamp dependent. For lamps known for one disclosed in US Pat. No. 5,604,410 Pulsed mode is provided, the width of the electrode tracks typically about 1 mm or slightly less or up to a few a few millimeters.
  • the electrode webs can be screen-printed, for example from silver solder, be applied directly to the carrier film.
  • the electrode tracks can also be achieved by means of conventional etching methods from a copper foil laminated with the carrier foil.
  • the copper foil can e.g. glued by means of an adhesive layer on the carrier film be. It is likewise conceivable to apply the carrier foil directly to a copper layer Mistake.
  • a first embodiment relates to so-called aperture lamps with external electrodes, which have a tubular discharge vessel.
  • This lamp type has at least one, typically two strip-shaped outer electrodes on, parallel to the longitudinal axis of the tubular discharge vessel are oriented.
  • at least one with a carrier film laminated electrode track parallel to the longitudinal axis of the tubular discharge vessel glued.
  • two parallel electrode tracks These are in a predetermined mutual distance with a carrier film laminated. This ensures that after gluing the laminate on the outside of the tubular discharge vessel, the two electrode tracks are arranged at the desired position.
  • Laminate glued so that the aperture of the lamp, through which the light is emitted, remains free. This has compared to the conventional one Solution in which the typically glued electrodes subsequently a translucent plastic shrink tubing is applied the advantage that here no reduction of passing through the aperture Luminous flux through a shrink tubing occurs.
  • the discharge lamp a flat discharge vessel - shortening in the following also as a flat lamp designated - with a plurality of conductor track-like electrodes (electrode tracks), the evenly distributed over the surface of the discharge vessel are.
  • the electrode tracks are in at least two comb-like, interlocking Electrode groups arranged on a common carrier film. This laminate thus formed is usually on the back of the flat discharge vessel - i. the outside of the light emission direction opposite surface - glued. With the multiplicity at a large-area flat lamp required electrode paths come the beginning mentioned advantages of the invention naturally particularly bear.
  • the electrode tracks including the collection tracks, with where the electrode tracks form comb-like electrode groups and possibly Leads to these electrode groups, for example, with in the electronics usual exposure and etching process from a copper coated carrier sheet exposed or alternatively from silver solder paste by means Screen printing technique applied directly to the carrier film.
  • the must Electrode sheets may not necessarily be completely straight, but can also have a substructure, as in the following embodiment is shown.
  • the laminate prepared in this way preferably provided on the electrode side with an adhesive layer and subsequently onto a surface, e.g. the back of the discharge vessel of the Flat lamp glued.
  • FIGS. 1a, 1b schematically show a flat lamp 1 with a diagonal of 21.3 "and an aspect ratio of 4: 3 in plan view and side view, respectively.
  • the discharge vessel of the flat lamp 1 is characterized by a front plate 2, a bottom plate 3 and a frame 4 arranged therebetween, wherein the frame 4, the two plates 2, 3 connects to each other gas-tight.
  • the outermost layer of the laminate 5 forms an approximately 50 ⁇ m thick carrier film made of PET (polyester), which also serves as a protective film for it lying about 15 microns thick electrode tracks 5b (for details see Fig. 3) made of copper.
  • PET polyethylene
  • an adhesive for the adhesive layer 6 of the adhesive as he used in the Tape tesa 4980 from Tesa AG is used.
  • Fig. 3 shows in plan view the copper layer side of the laminate 5. This consists in detail from 29 parallel to each other and at a mutual distance mutually arranged electrode tracks 7, for a first polarity are provided as well as 29 electrode tracks 8, for a second polarity are provided, wherein continuously an electrode web. 7 the first polarity with an electrode track 8 of the second polarity alternate. On opposite sides is the respective one end of each electrode track 7, 8 of a polarity to a collecting track 9, 10 summarized. In this way, the electrode tracks 7, 8 form with their associated Collection channels 9, 10 comb-like structures, the structures of both Polarities, as it were, intermesh.
  • the individual, essentially straight electrode tracks 7, 8 have opposite wave-like substructure on, whereby in each case between two next adjacent electrode tracks 7, 8 a plurality of narrow points 11 are formed. At each of these Digits 11 is formed in the above-mentioned pulsed operation according to the US Pat. No. 5,604,410 already cited a single discharge (not shown).
  • the laminate is on the outside of the Bottom plate of a flat lamp glued, which -as already mentioned - has in the front plate molded numerous support projections, whereby predetermined positions for single discharges between the support projections are.
  • the above-mentioned narrow points of the electrode tracks and the for the individual discharges predetermined positions exactly matched.
  • the average distance of the electrode tracks is 4.5 mm, whose width is approx. 1.45 mm. In two variants, not shown, the electrode web width 2.05 mm or 0.85 mm.
  • the collection tracks 9, 10 go in turn Feed lines 12, 13 over, which are parallel along an edge region of the Carrier foil 5a lead. All copper tracks 7-13 are conventional Etching process from a copper foil laminated with the carrier foil 5a emerged. Before sticking the laminate 5 on the outside of the bottom plate 3 of the discharge vessel, the laminate 5 along a line 14, which the supply lines 12, 13 of the electrode tracks 7, 8 and the Sammelbahn 9 separates, cut.
  • the two feed lines 12, 13 for protection from external influences as well as touch are the two feed lines 12, 13 with the exception of their respective terminal end with an additional Insulating layer (not shown) covered.

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Plasma & Fusion (AREA)
  • Electromagnetism (AREA)
  • Vessels And Coating Films For Discharge Lamps (AREA)
  • Planar Illumination Modules (AREA)
EP04021715A 2003-10-09 2004-09-13 Lampe à décharge munie d'au moins une électrode externe et procédé pour sa fabrication Withdrawn EP1536453A3 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10347636 2003-10-09
DE10347636A DE10347636A1 (de) 2003-10-09 2003-10-09 Entladungslampe mit mindestens einer Außenelektrode und Verfahren zu ihrer Herstellung

Publications (2)

Publication Number Publication Date
EP1536453A2 true EP1536453A2 (fr) 2005-06-01
EP1536453A3 EP1536453A3 (fr) 2007-08-08

Family

ID=34399486

Family Applications (1)

Application Number Title Priority Date Filing Date
EP04021715A Withdrawn EP1536453A3 (fr) 2003-10-09 2004-09-13 Lampe à décharge munie d'au moins une électrode externe et procédé pour sa fabrication

Country Status (8)

Country Link
US (1) US7298071B2 (fr)
EP (1) EP1536453A3 (fr)
JP (1) JP2005116532A (fr)
KR (1) KR100697438B1 (fr)
CN (1) CN1619764B (fr)
CA (1) CA2484245A1 (fr)
DE (1) DE10347636A1 (fr)
TW (1) TWI279826B (fr)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2889886A1 (fr) * 2005-08-19 2007-02-23 Saint Gobain Lampe uv plane a decharge coplanaire et utilisations
KR20080025904A (ko) * 2006-09-19 2008-03-24 삼성코닝정밀유리 주식회사 면광원 장치, 그 구동 방법 및 이를 구비하는 백라이트유닛
DE102008036837A1 (de) 2008-08-07 2010-02-18 Epcos Ag Sensorvorrichtung und Verfahren zur Herstellung

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH10312776A (ja) * 1997-05-12 1998-11-24 Nec Home Electron Ltd 希ガス放電灯
EP0938128A1 (fr) * 1998-02-23 1999-08-25 Smiths Industries Public Limited Company Lampe à décharge planaire pouvant être attenuée sur une plage étendue ainsi qu'un systéme comprenant une telle lampe et un circuit de contrÔle
JPH11283581A (ja) * 1998-03-30 1999-10-15 Tokai Rubber Ind Ltd フィルム状電極の接続用端子構造
JP2000082442A (ja) * 1998-07-06 2000-03-21 Harison Electric Co Ltd 外面電極蛍光ランプ
JP2000228172A (ja) * 1999-02-08 2000-08-15 Nippon Sheet Glass Co Ltd 平面型光源
JP2000331648A (ja) * 1999-05-18 2000-11-30 Nec Home Electronics Ltd 電極シート用粘着絶縁シート及び電極シート
WO2003017312A1 (fr) * 2001-08-08 2003-02-27 Patent-Treuhand-Gesellschaft für elektrische Glühlampen mbH Procede de fabrication d'une lampe a decharge

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JPS5951701B2 (ja) * 1978-03-09 1984-12-15 松下電器産業株式会社 螢光ランプの製造方法
DE4311197A1 (de) * 1993-04-05 1994-10-06 Patent Treuhand Ges Fuer Elektrische Gluehlampen Mbh Verfahren zum Betreiben einer inkohärent strahlenden Lichtquelle
DE19526211A1 (de) * 1995-07-18 1997-01-23 Patent Treuhand Ges Fuer Elektrische Gluehlampen Mbh Verfahren zum Betreiben von Entladungslampen bzw. -strahler
JPH0950785A (ja) * 1995-08-09 1997-02-18 Toko Inc 平面型蛍光管およびその点灯方法
CN2262757Y (zh) * 1995-12-13 1997-09-17 史国强 平面板式霓虹灯
CA2256346C (fr) * 1997-03-21 2006-05-16 Patent-Treuhand-Gesellschaft Fuer Elektrische Gluehlampen Mbh Tube fluorescent plat destine a l'eclairage de fond et dispositif d'affichage a cristaux liquides dote de ce tube fluorescent plat
EP0867915B1 (fr) * 1997-03-25 2003-05-21 Nec Corporation Lampe à décharge dans un gaz rare
JP3635850B2 (ja) * 1997-04-07 2005-04-06 ウシオ電機株式会社 希ガス放電灯
JP3635849B2 (ja) * 1997-04-07 2005-04-06 ウシオ電機株式会社 希ガス放電灯
JPH10289693A (ja) * 1997-04-11 1998-10-27 Nec Home Electron Ltd 希ガス放電灯
JPH1173925A (ja) * 1997-07-03 1999-03-16 Tokai Rubber Ind Ltd フィルム状電極およびその製法ならびにその製造装置およびそのフィルム状電極を用いた無電極ランプ
US5914560A (en) 1997-09-30 1999-06-22 Winsor Corporation Wide illumination range photoluminescent lamp
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JP2001196028A (ja) * 2000-01-07 2001-07-19 Harison Toshiba Lighting Corp 外面電極放電ランプ
DE10115279A1 (de) * 2000-03-31 2001-10-18 Toshiba Lighting & Technology Entladungslampenlicht und Leuchteinrichtung hierfür
JP3910910B2 (ja) * 2001-11-30 2007-04-25 ハリソン東芝ライティング株式会社 外部電極放電ランプ
JP4350335B2 (ja) 2002-01-30 2009-10-21 大王製紙株式会社 紙おむつ
KR100476367B1 (ko) * 2002-06-21 2005-03-16 엘지.필립스 엘시디 주식회사 액정표시장치에 일체된 터치패널의 신호선 형성방법
KR20040022711A (ko) * 2002-09-05 2004-03-18 주식회사 우영 직하발광형 평면광원 및 그것을 제조하는 방법

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH10312776A (ja) * 1997-05-12 1998-11-24 Nec Home Electron Ltd 希ガス放電灯
EP0938128A1 (fr) * 1998-02-23 1999-08-25 Smiths Industries Public Limited Company Lampe à décharge planaire pouvant être attenuée sur une plage étendue ainsi qu'un systéme comprenant une telle lampe et un circuit de contrÔle
JPH11283581A (ja) * 1998-03-30 1999-10-15 Tokai Rubber Ind Ltd フィルム状電極の接続用端子構造
JP2000082442A (ja) * 1998-07-06 2000-03-21 Harison Electric Co Ltd 外面電極蛍光ランプ
JP2000228172A (ja) * 1999-02-08 2000-08-15 Nippon Sheet Glass Co Ltd 平面型光源
JP2000331648A (ja) * 1999-05-18 2000-11-30 Nec Home Electronics Ltd 電極シート用粘着絶縁シート及び電極シート
WO2003017312A1 (fr) * 2001-08-08 2003-02-27 Patent-Treuhand-Gesellschaft für elektrische Glühlampen mbH Procede de fabrication d'une lampe a decharge

Also Published As

Publication number Publication date
CN1619764B (zh) 2010-06-23
TWI279826B (en) 2007-04-21
US20050077808A1 (en) 2005-04-14
CA2484245A1 (fr) 2005-04-09
US7298071B2 (en) 2007-11-20
DE10347636A1 (de) 2005-05-04
KR100697438B1 (ko) 2007-03-20
TW200514119A (en) 2005-04-16
KR20050034558A (ko) 2005-04-14
EP1536453A3 (fr) 2007-08-08
JP2005116532A (ja) 2005-04-28
CN1619764A (zh) 2005-05-25

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