EP0976145B1 - Dispositif de visualisation avec lampe plat a luminance modulee localement - Google Patents

Dispositif de visualisation avec lampe plat a luminance modulee localement Download PDF

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Publication number
EP0976145B1
EP0976145B1 EP98966303A EP98966303A EP0976145B1 EP 0976145 B1 EP0976145 B1 EP 0976145B1 EP 98966303 A EP98966303 A EP 98966303A EP 98966303 A EP98966303 A EP 98966303A EP 0976145 B1 EP0976145 B1 EP 0976145B1
Authority
EP
European Patent Office
Prior art keywords
display device
flat
electrodes
groups
display
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 - Lifetime
Application number
EP98966303A
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German (de)
English (en)
Other versions
EP0976145A1 (fr
Inventor
Frank Vollkommer
Lothar Hitzschke
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
Priority to EP98966303A priority Critical patent/EP0976145B1/fr
Publication of EP0976145A1 publication Critical patent/EP0976145A1/fr
Application granted granted Critical
Publication of EP0976145B1 publication Critical patent/EP0976145B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • H01J61/92—Lamps with more than one main discharge path
    • 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
    • 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
    • H01J65/042—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 by an external electromagnetic field
    • H01J65/046—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 by an external electromagnetic field the field being produced by using capacitive means around the vessel
    • 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

Definitions

  • the invention relates to display devices with lamps.
  • lamps There are different types of lamps, based on the functional principle, Differentiate between size, design, performance range, etc.
  • Lamp types for certain applications lie in the flatness of the Light generation and the uniformity of the flat light generation. at some use cases are about giving some examples, to illuminate an area of a certain extent, a certain one Distribute light output over a certain area to reduce glare a lighting solution for the sake of reducing shadow formation to find with light distribution distributed as flat as possible for decorative or design reasons, a lamp is particularly large perform and the like.
  • Incandescent lamps for the aspect of flat backlighting and Lighting, combinations of one or more geometrically large ones Fluorescent lamps with (multiple) reflector systems for office lighting as an example of the aspect of non-glare and low shadow formation, or light tables for working with photo negatives for the point of view Glare-free and columnar luminaires with upright fluorescent lamps or from a multitude of lightbulbs, backlit, diffusing Panes of glass for interior design and decoration.
  • Incandescent lamps were also used for. B. with reflector systems or systems from a variety of incandescent lamps.
  • a relatively young type of lamp are the fluorescent lamps with a dielectric disabled discharge due to their special functioning are often designed as flat radiators. This is a discharge volume formed from not necessarily planes in the sense of straight, however flat and largely flat plates, such as glass, with the electrode structures are made on one or both glass plates.
  • WO 91/09414 discloses a flat discharge lamp Display means.
  • the shape of the electrode becomes the visual display of numbers, letters, symbols, etc.
  • EP 0 414 498 shows a comparable prior art, with some Electrode groups are switchable.
  • This invention is based on the prior art illustrated Technology addresses the problem of an improved ad setup create.
  • a display device with a flat radiator with dielectric barrier discharge with a flat inhomogeneous electrode geometry for local modulation of the surface luminance characterized in that the display device a has backlit surface shape and the electrode geometry the surface shape to be backlit is coordinated.
  • the invention uses the special structure of the flat radiators for dielectrically impeded discharges by changing the geometric Distribution of the discharge electrodes on the flat walls of the discharge volume, so z. B. on two substantially flat and the discharge volume together with a glass plate enclosing a frame, deliberately not distributed homogeneously.
  • This orientation of the invention which deviates from the prior art, is based on the knowledge that there are many applications in which a local modulation of the surface luminance tailored to the application through a corresponding inhomogeneous distribution of the electrodes can be advantageous in the area of the flat radiator. Such advantages can in the area of better readability of an advertisement or a Lettering or signal, in the area of energy saving through better Alignment of the surface luminance with the local lighting requirements and the like. Some examples are in this application listed, and one is shown more specifically as an embodiment.
  • Electrodes in two or more distributed inhomogeneously Groups operated, which can be switched or operated independently of one another are.
  • the electrodes of each group are on their own Group-specific cathode or anode connection connected. This is only possible through the use of dielectric barrier discharges possible because of their so-called positive current-voltage characteristics - The problem-free parallel connection of several partial discharges or enable electrode tracks to form electrode groups.
  • the separately operable groups each have specific areas of the Let the flat radiator correspond, especially surface areas higher Luminance, which are then switched on and off separately can. You can also use the separately operated groups Use the power rating of the lamp or to create different ones Surface pattern to achieve special optical effects.
  • the invention relates to optical displays. It can be Analog instruments act as shown in the exemplary embodiment Digital displays to individual fields, determined by their glow symbolized statements for the valid display fields, as for conventional control lamps etc. In any case, there is a specific one to be illuminated Predefined surface shape of the display device, according to the invention the electrode geometry is matched. So that is in the area of the surface shapes to be illuminated a higher, the highest or at all generates a surface luminance. This allows the entire generated The amount of light and therefore the energy consumption is application-specific can be optimized without this for the flat radiator as a whole, i.e. its housing geometry or the discharge volume application-specific forms or complicated shapes become necessary.
  • a special case for the area of display devices in geometric terms are the analog displays in which, as illustrated in the exemplary embodiment, especially the following forms for backlighting by a Adapted electrode geometry occur: circles, circle segments, circular rings and circular ring segments.
  • Such forms are with the conventional technique practically only defined by the use of screens or masks backlight, so that the invention here in terms of simplicity of technical structure and energy consumption offer significant advantages can. This applies in particular to circular rings or circular ring segments and others tall or curved shapes.
  • the invention will now be illustrated on the basis of a concrete exemplary embodiment, which is shown schematically in the figure.
  • the figure shows a plan view of a flat radiator for a motor vehicle "dashboard" Backlighting of a combination instrument for displaying the speed, the engine speed, the cooling water temperature and the tank content.
  • the outer edge of a discharge volume denoted by 1 is initially shown, that of two glass plates lying flat in the plane of the drawing and a seal running along the drawn edge is included.
  • the glass plates protrude in the lower area of the figure an approach denoted by 3 beyond the discharge volume 1.
  • At the right edge is the pump nozzle used for evacuation and filling (in the closed state).
  • Summarized with 2 are the electrodes printed on one of the plates, being cathodes and anodes run alternately, but not in the figure are more differentiated.
  • the electrodes lie with most of their length 2 in the discharge volume 1 and are outside of the discharge volume 1 part located in the area of approach 3 to the supply circuit and car electrics connected.
  • the electrodes 2 are in three spatially separate groups 2a, 2b and 2c before, each corresponding to certain display units or content.
  • the left group 2a corresponds to an analog instrument for speed display and leads from their leading to Approach 3 straight section apart, the circular ring segment of this analog instrument to.
  • group 2c two instruments are combined, namely a tank level indicator and a cooling water thermometer.
  • the geometry can also be advantageous the flat radiator, which, as is clear in this exemplary embodiment, in shape and size particularly well at the place of use or installation can be adjusted.
  • the present invention nevertheless allows this the use of simple flat radiator housing shapes, in the present Example the outer shape of the discharge volume 1 including the approach 3 instead of the complicated circular ring segments with connectors. Also, the flatness in the limited space in a dashboard, Cockpit etc. an advantage. The same applies to the low weight.

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Plasma & Fusion (AREA)
  • Electromagnetism (AREA)
  • Vessels And Coating Films For Discharge Lamps (AREA)
  • Illuminated Signs And Luminous Advertising (AREA)
  • Instrument Panels (AREA)
  • Non-Portable Lighting Devices Or Systems Thereof (AREA)
  • Arrangement Of Elements, Cooling, Sealing, Or The Like Of Lighting Devices (AREA)
  • Devices For Indicating Variable Information By Combining Individual Elements (AREA)
  • Optical Radar Systems And Details Thereof (AREA)
  • Circuit Arrangements For Discharge Lamps (AREA)
  • Discharge Lamps And Accessories Thereof (AREA)

Claims (5)

  1. Dispositif d'affichage ayant une lampe plate à décharge rendue incomplète par voie diélectrique ayant une géométrie (2a, 2b, 2c) d'électrode qui n'est pas homogène à plat pour la modulation locale de la luminance de surface,
       caractérisé en ce que le dispositif d'affichage a une forme de surface à éclairer par l'arrière par la lampe plate et
       la géométrie de l'électrode est adaptée à la forme de surface à éclairer par l'arrière.
  2. Dispositif d'affichage suivant la revendication 1, dans lequel les électrodes sont réparties en groupes pouvant être alimentés séparément en vue du fonctionnement commutable de manière indépendante.
  3. Dispositif d'affichage suivant la revendication 2, dans lequel les groupes (2a, 2b, 2c) sont répartis à plat et correspondent à des surfaces d'éclairement différentes à faire fonctionner indépendamment.
  4. Dispositif d'affichage suivant l'une des revendications précédentes, qui est un affichage analogique en forme de cercle, de segment de cercle, d'anneau de cercle ou de segment d'anneau de cercle.
  5. Dispositif d'affichage suivant l'une des revendications précédentes, servant de dispositif d'affichage dans un véhicule automobile, dans un bateau ou dans un avion.
EP98966303A 1997-12-23 1998-12-11 Dispositif de visualisation avec lampe plat a luminance modulee localement Expired - Lifetime EP0976145B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP98966303A EP0976145B1 (fr) 1997-12-23 1998-12-11 Dispositif de visualisation avec lampe plat a luminance modulee localement

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
EP97122799A EP0926705A1 (fr) 1997-12-23 1997-12-23 Radiateur plat à densité lumineuse de surface modulée localement
EP97122799 1997-12-23
PCT/EP1998/008103 WO1999034409A1 (fr) 1997-12-23 1998-12-11 Reflecteur plat a luminance modulee localement
EP98966303A EP0976145B1 (fr) 1997-12-23 1998-12-11 Dispositif de visualisation avec lampe plat a luminance modulee localement

Publications (2)

Publication Number Publication Date
EP0976145A1 EP0976145A1 (fr) 2000-02-02
EP0976145B1 true EP0976145B1 (fr) 2003-03-12

Family

ID=8227874

Family Applications (3)

Application Number Title Priority Date Filing Date
EP97122799A Withdrawn EP0926705A1 (fr) 1997-12-12 1997-12-23 Radiateur plat à densité lumineuse de surface modulée localement
EP98966304A Expired - Lifetime EP0995224B1 (fr) 1997-12-23 1998-12-11 Lampe luminescente a gaz avec groupes d'electrodes actionnables separement
EP98966303A Expired - Lifetime EP0976145B1 (fr) 1997-12-23 1998-12-11 Dispositif de visualisation avec lampe plat a luminance modulee localement

Family Applications Before (2)

Application Number Title Priority Date Filing Date
EP97122799A Withdrawn EP0926705A1 (fr) 1997-12-12 1997-12-23 Radiateur plat à densité lumineuse de surface modulée localement
EP98966304A Expired - Lifetime EP0995224B1 (fr) 1997-12-23 1998-12-11 Lampe luminescente a gaz avec groupes d'electrodes actionnables separement

Country Status (11)

Country Link
US (2) US6483255B1 (fr)
EP (3) EP0926705A1 (fr)
JP (2) JP2000510645A (fr)
KR (2) KR100355896B1 (fr)
CN (1) CN1248345A (fr)
AT (1) ATE234506T1 (fr)
CA (2) CA2281221A1 (fr)
DE (3) DE19817479A1 (fr)
HU (1) HUP0002078A3 (fr)
TW (1) TW432899B (fr)
WO (2) WO1999034409A1 (fr)

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EP0926705A1 (fr) 1997-12-23 1999-06-30 Patent-Treuhand-Gesellschaft für elektrische Glühlampen mbH Radiateur plat à densité lumineuse de surface modulée localement
DE19844720A1 (de) * 1998-09-29 2000-04-06 Patent Treuhand Ges Fuer Elektrische Gluehlampen Mbh Dimmbare Entladungslampe für dielektrisch behinderte Entladungen
DE19845228A1 (de) * 1998-10-01 2000-04-27 Patent Treuhand Ges Fuer Elektrische Gluehlampen Mbh Dimmbare Entladungslampe für dielektrisch behinderte Entladungen
DE19928438A1 (de) * 1999-06-23 2000-12-28 Patent Treuhand Ges Fuer Elektrische Gluehlampen Mbh Verfahren zum Betrieb einer Entladungslampe
DE19960053A1 (de) 1999-12-13 2001-06-21 Patent Treuhand Ges Fuer Elektrische Gluehlampen Mbh Flache Beleuchtungsvorrichtung
DE19960728B4 (de) 1999-12-16 2011-03-31 Osram Gesellschaft mit beschränkter Haftung Vorrichtung zur schattenfreien Hinterleuchtung von großflächigen Displays
DE10048409A1 (de) * 2000-09-29 2002-04-11 Patent Treuhand Ges Fuer Elektrische Gluehlampen Mbh Entladungslampe mit kapazitiver Feldmodulation
DE10063931A1 (de) * 2000-12-20 2002-07-04 Patent Treuhand Ges Fuer Elektrische Gluehlampen Mbh Bildanzeigeeinrichtung aus einer Vielzahl stiller Gasentladungslampen
DE10063930C1 (de) 2000-12-20 2002-08-01 Patent Treuhand Ges Fuer Elektrische Gluehlampen Mbh Stille Entladungslampe mit steuerbarer Farbe und Bildanzeigeeinrichtung mit dieser stillen Entladungslampe sowie Verfahren zum Betreiben derselben
JP3471782B2 (ja) * 2001-02-13 2003-12-02 Ｎｅｃ液晶テクノロジー株式会社 平面型蛍光ランプユニット及びそれを用いた液晶表示装置
US6762556B2 (en) * 2001-02-27 2004-07-13 Winsor Corporation Open chamber photoluminescent lamp
DE10111191A1 (de) 2001-03-08 2002-09-19 Patent Treuhand Ges Fuer Elektrische Gluehlampen Mbh Verfahren mit Kontaktsystem
DE10138924A1 (de) * 2001-08-08 2003-02-20 Patent Treuhand Ges Fuer Elektrische Gluehlampen Mbh Verfahren zum Herstellen eines stillen Flachstrahlers
DE20206718U1 (de) 2002-04-26 2002-08-08 Berger GmbH, 47475 Kamp-Lintfort Anordnung zur Lichtwerbung und dazu geeignete Gasentladungslampe
EP3721958A1 (fr) * 2003-04-21 2020-10-14 Signify North America Corporation Procédés et systèmes d'éclairage de dalle
EP1562221A3 (fr) * 2003-12-03 2008-09-17 Samsung Electronics Co., Ltd. Lampe plate
DE102004039902B3 (de) * 2004-08-17 2006-04-06 Berger Gmbh Flächige Gasentladungslampe und Verfahren zu ihrer Herstellung
KR100657902B1 (ko) * 2004-10-13 2006-12-14 삼성코닝 주식회사 평판 램프
DE102006026333A1 (de) 2006-06-02 2007-12-06 Patent-Treuhand-Gesellschaft für elektrische Glühlampen mbH Entladungslampe für dielektrisch behinderte Entladungen mit flachem Entladungsgefäß
DE102006026349A1 (de) * 2006-06-02 2007-12-06 Patent-Treuhand-Gesellschaft für elektrische Glühlampen mbH Anzeigeeinrichtung mit Barrierenentladungslampe zur Hinterleuchtung
DE102006026332A1 (de) 2006-06-02 2007-12-06 Patent-Treuhand-Gesellschaft für elektrische Glühlampen mbH Entladungslampe für dielektrisch behinderte Entladungen mit rippenartigen Stützelementen zwischen Bodenplatte und Deckenplatte
KR20080025904A (ko) * 2006-09-19 2008-03-24 삼성코닝정밀유리 주식회사 면광원 장치, 그 구동 방법 및 이를 구비하는 백라이트유닛
DE102006050136B4 (de) * 2006-10-25 2016-12-15 Leibniz-Institut für Analytische Wissenschaften-ISAS-e.V. Verfahren und Vorrichtung zur Erzeugung von positiv und/oder negativ ionisierten Gasanalyten für die Gasanalyse
WO2008064711A1 (fr) * 2006-11-27 2008-06-05 Patent-Treuhand-Gesellschaft für elektrische Glühlampen mbH Commande de l'intensité lumineuse de lampes à décharge à barrière diélectrique au moyen d'un fonctionnement séquentiel

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Also Published As

Publication number Publication date
DE19817479A1 (de) 1999-06-24
DE59807472D1 (de) 2003-04-17
KR100355896B1 (ko) 2002-10-18
ATE234506T1 (de) 2003-03-15
HUP0002078A2 (hu) 2000-10-28
JP3530199B2 (ja) 2004-05-24
US6388374B1 (en) 2002-05-14
CA2280805C (fr) 2007-03-13
EP0976145A1 (fr) 2000-02-02
JP2000510646A (ja) 2000-08-15
HUP0002078A3 (en) 2003-03-28
TW432899B (en) 2001-05-01
US6483255B1 (en) 2002-11-19
WO1999034411A1 (fr) 1999-07-08
KR20000075587A (ko) 2000-12-15
WO1999034409A1 (fr) 1999-07-08
KR20000075586A (ko) 2000-12-15
CA2280805A1 (fr) 1999-07-08
EP0995224A1 (fr) 2000-04-26
EP0926705A1 (fr) 1999-06-30
CA2281221A1 (fr) 1999-07-08
EP0995224B1 (fr) 2003-10-15
DE59809933D1 (de) 2003-11-20
KR100355897B1 (ko) 2002-10-18
CN1248345A (zh) 2000-03-22
JP2000510645A (ja) 2000-08-15

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