WO2002050873A1 - Stille entladungslampe mit steuerbarer farbe - Google Patents
Stille entladungslampe mit steuerbarer farbe Download PDFInfo
- Publication number
- WO2002050873A1 WO2002050873A1 PCT/DE2001/004281 DE0104281W WO0250873A1 WO 2002050873 A1 WO2002050873 A1 WO 2002050873A1 DE 0104281 W DE0104281 W DE 0104281W WO 0250873 A1 WO0250873 A1 WO 0250873A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- gas discharge
- discharge lamp
- color
- phosphor
- electrode groups
- Prior art date
Links
Classifications
-
- 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
- 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
-
- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
- G09F9/00—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements
- G09F9/30—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements in which the desired character or characters are formed by combining individual elements
- G09F9/313—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements in which the desired character or characters are formed by combining individual elements being gas discharge devices
Definitions
- the present invention relates to a so-called silent gas discharge lamp.
- at least the anode (s) is or are separated from the gas filling serving as the discharge medium by a dielectric layer.
- all electrodes are dielectrically impeded.
- Silent discharge lamps as such are known. They are of interest for various applications, in particular also for backlighting displays in flat screens and the like.
- the design is known as a so-called flat radiator, in which the lamp essentially consists of two plane-parallel plates which can be connected via a frame and enclose the discharge medium between them. One of the two plates serves as the light emitting surface of the flat spotlight.
- These silent gas discharge lamps are preferably operated using a pulsed operating method, with which a particularly high efficiency in the generation of light (UV light or preferably visible light is added Use of phosphors) can be achieved.
- a pulsed operating method with which a particularly high efficiency in the generation of light (UV light or preferably visible light is added Use of phosphors) can be achieved.
- the details of this operating method are also known in the prior art and are known to the person skilled in the art, so that they are not dealt with in detail here.
- This invention is based on the technical problem of expanding the area of application and the possible uses for silent gas discharge lamps.
- a gas discharge lamp is provided on the one hand with a discharge vessel filled with a gas filling, with a plurality of electrodes divided into groups which can be operated separately, a dielectric layer between at least one anode part of the electrodes and the gas filling and a phosphor layer, the phosphor layer being assigned to the electrode groups has at least two respective fluorescent colors, the electrode groups and the partial phosphor surfaces are each nested flatly with respect to one another in such a way that the light-emitting surface of the gas discharge lamp can essentially be illuminated individually with each electrode group, and the gas discharge lamp is designed so that the color of the light emission can be controlled by controlling simultaneous operation of the electrode groups.
- the invention is also directed to an operating method for such a gas discharge lamp, in which the electrode groups are operated simultaneously with controlled power and in this way the relative ratios of the emitted light colors of the phosphors are controlled.
- the invention also relates to an image display device with a large number of such gas discharge lamps, which will be discussed in more detail in the further course of the description.
- the overall color of the light emission of the discharge lamp should be controllable, specifically as a mixed color from at least two colors of phosphors or phosphor mixtures.
- the electrodes are divided into groups which can be operated separately from one another.
- Each of the electrode groups is assigned to a fluorescent surface, which forms a partial surface of the entire light emission surface of the gas discharge lamp.
- This partial phosphor surface is provided with a respective phosphor or phosphor mixture and generates a certain color when the lamp is in operation.
- the operation of an electrode group thus means light emission with the assigned fluorescent (mixture) color.
- the total radiation should act as a mixed color, so that the individual areas of the phosphor can no longer be resolved in the application of the beholder's eye with an adapted observation distance or with diffusion through diffuser elements of the discharge lamp or through reflection on illuminated objects or the like, for which purpose the electrode groups and the ordered phosphor partial areas are nested locally. How fine the structure of this local nesting should be depends on the specific application.
- the partial fluorescent areas should not form self-contained, separate, compact blocks within the entire light-emitting area of the gas discharge lamp, but rather should be interlocked with one another in various ways or otherwise nested in relation to this total light-emitting area. In other words, it should be possible to essentially illuminate the entire light radiation area by each group of electrodes.
- one or the other of the at least two fluorescent colors can now be generated during operation of the lamp and a mixed color can be produced therefrom by simultaneous operation. Since it has meanwhile been found that silent discharge lamps of this type can be dimmed, which also applies to individual electrode groups, the simultaneous operation of the electrode groups with the different fluorescent colors not only enables a specific mixed color to be produced, but can also be changed continuously.
- suitable electrode structures in particular those with a discharge that changes monotonically within so-called control lengths, distance, by varying parameters of the electrical power supply, in particular the voltage amplitude in the pulsed operating method, or the dead time between the pulses, the power of the lamp can be continuously controlled in relatively large areas.
- control lengths, distance by varying parameters of the electrical power supply, in particular the voltage amplitude in the pulsed operating method, or the dead time between the pulses, the power of the lamp can be continuously controlled in relatively large areas.
- operation can also take place at a very low power level.
- this is to be understood in such a way that different discharge distances can also exist within an electrode group corresponding to a fluorescent color, that is, subgroups can be formed in connection with the dimming process.
- the partial fluorescent areas do not have to be clearly delimited from one another, but can also merge into one another. In the usual manufacturing processes, however, there will usually be a defined boundary between the partial phosphor surfaces.
- the groups z. B. in connection with the dim properties can be divided into subgroups, as already stated above.
- the assigned partial fluorescent areas do not have to be contiguous, but can also consist of a large number of individual, contiguous fields on the light emitting surface.
- One possible application of the invention is to generate white light with adjustable color temperature.
- white light is generated by jointly exciting a so-called three-band mixture of different phosphors.
- the phosphors or phosphor mixtures corresponding to the three primary colors (three bands) are thus mixed together.
- the color temperature of the white tone can only be set by the proportions of the dyes in the overall dye mixture. For each desired color temperature, therefore, a separate dye mixture and thus a separate gas discharge lamp must be manufactured and bought and stored by the user.
- the procedure according to the invention can be used to produce a silent gas discharge lamp in which the color temperature can be adjusted in addition to the overall brightness by finely adjusting the respective output of the individual electrode groups. In principle, this argument naturally also applies to other tones in addition to white light, but the commercial importance of white light of different color temperatures is greatest.
- standardized lamps can be equipped with different ballasts in order to generate different color temperatures depending on the application.
- the adjustability on the part of the user could be dispensed with, for example because only a small number of different standard color temperatures are of interest anyway.
- a ballast can also be provided with the possibility of switching between different, predetermined color temperatures.
- a gas discharge lamp according to the invention can also be interesting to be able to use a gas discharge lamp according to the invention to be able to produce a larger color spectrum or as complete a color spectrum as possible.
- This image display device consists of a large number of gas discharge lamps arranged planar next to one another, which therefore each form full-color pixels.
- the image information can be generated by controlling the brightness of the individual pixels, that is to say lamps, the overall image display device being able to operate as a color display in accordance with the colors that can be represented by the individual pixels.
- the single lamp corresponds to a set of neighboring primary color pixels (usually three).
- Fig. 1 shows schematically the structure of a light emission surface of a silent gas discharge lamp with two phosphor surfaces, each corresponding to primary colors;
- FIG. 3 illustrates the structure of a variant of FIG. 1, namely the nesting of three partial phosphor areas corresponding to primary colors;
- FIG. 4 schematically illustrates an image display device according to the invention to be constructed from silent gas discharge lamps according to FIGS. 1-3.
- the light emission surface 1 corresponds essentially to the translucent ceiling plate of a conventional silent flat radiator with the exception of the details explained below. It can be seen that the light radiation surface 1 is divided into a checkerboard pattern into two phosphor partial surfaces 2 and 3.
- the phosphor partial surfaces 2 and 3 are understood as the sum of the respective light and dark squares, so each phosphor partial surface 2 and 3 forms half of the light radiation surface and is the only one Excitation already capable of illuminating the light emission surface 1 essentially completely.
- the phosphor sub-area 2 should emit a blue color and the phosphor sub-area a yellow color. This means that in addition to the shades of yellow and blue, shades can also be represented in a continuous green spectrum, which is obtained by mixing the two primary colors.
- the homogeneity can be further increased by additionally connecting a diffuser element known per se for homogenizing the luminance distribution in backlighting of the screen, for example a prismatic film or a ground glass screen.
- a diffuser element known per se for homogenizing the luminance distribution in backlighting of the screen for example a prismatic film or a ground glass screen.
- FIG. 2 shows an example of an electrode structure suitable for FIG. 1.
- the two central horizontal lines 4 correspond to two anodes, the electrode strips 5 and 6, which are rectangularly meandering around these anodes 4, are cathodes which can be operated separately from one another and have respective projections 7 for localizing individual discharge structures 8.
- the cathode 5 is designed with broken lines to separate it from the cathode 6 distinguishable, in fact it is of course a continuous path.
- the separate operability of the cathodes 5 and 6 results in two electrode groups 4, 5 and 4, 6 (with common anodes), to which the discharge structures schematically shown as triangles are assigned. The figure therefore assumes that both electrode groups are operated simultaneously.
- the electrode strips 4, 5, 6 must be insulated from one another at the crossing points and in the areas in which they run relatively closely adjacent.
- a corresponding safety distance between the Cathode strips 5 and 6 may be provided, which is not shown in the drawing in FIG. 2.
- FIG. 3 shows a variant of the pattern from FIG. 1, which is designed for three primary colors.
- the partial fluorescent areas are designated 9, 10 and 11 and correspond to the primary colors blue at 9, green at 10 and red at 11 in this variant.
- a correspondingly constructed gas discharge lamp is in principle able to display a full color spectrum. Otherwise, the explanations for FIG. 1 apply.
- the electrode structure required for the variant in FIG. 3 is naturally somewhat more complex than that shown in FIG. 2 and is not explained in detail here because nothing fundamentally new arises from it.
- Fig. 4 schematically shows a large-format image display device 12 with a frame 13 which carries a large-format rectangular flat screen wall 14 erected and raised above the ground.
- a picture display Ge dressed 12 could be used for example in a large sports stadium as an information area or could also be mounted as an advertising board, for example on house walls, then of course without the frame 13 shown here.
- the flat screen wall 14 essentially consists of a large number of individual gas discharge lamps 15 mounted planar next to one another, which are constructed in accordance with FIGS. 1 and 2 or in accordance with FIG. 3. As a result, they form full-color pixels for a color display with two or three primary colors.
- the graphic image information (ie light / dark information) has a spatial resolution corresponding to the size of the individual gas discharge lamps 15.
- the flat screen wall 14 should therefore be designed in such a way that the viewer can recognize an image as a whole at an assumed observation distance and preferably no longer perceives a single lamp for himself.
- a major advantage of using silent discharge lamps for image display devices 12, as in FIG. 4, is that the silent discharge lamps can be used to achieve a very high luminance with an acceptable power consumption.
- silent discharge lamps are extremely switch-resistant, ie they are well suited for time-varying continuous applications. They also show practically no start-up behavior or temperature dependence of the light output.
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- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Plasma & Fusion (AREA)
- Electromagnetism (AREA)
- General Physics & Mathematics (AREA)
- Theoretical Computer Science (AREA)
- Control Of Indicators Other Than Cathode Ray Tubes (AREA)
- Vessels And Coating Films For Discharge Lamps (AREA)
- Discharge-Lamp Control Circuits And Pulse- Feed Circuits (AREA)
- Circuit Arrangements For Discharge Lamps (AREA)
Abstract
Description
Claims
Priority Applications (6)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE50111899T DE50111899D1 (de) | 2000-12-20 | 2001-11-15 | Stille entladungslampe mit steuerbarer farbe |
US10/203,753 US6696781B2 (en) | 2000-12-20 | 2001-11-15 | Silent discharge lamp with controllable color |
EP01271651A EP1261983B1 (de) | 2000-12-20 | 2001-11-15 | Stille entladungslampe mit steuerbarer farbe |
JP2002551885A JP2004515902A (ja) | 2000-12-20 | 2001-11-15 | 制御可能な色を有する無声ガス放電ランプ |
CA002400769A CA2400769A1 (en) | 2000-12-20 | 2001-11-15 | Silent discharge lamp with controllable color |
KR1020027010490A KR20020077443A (ko) | 2000-12-20 | 2001-11-15 | 제어가능한 색상을 가진 무성 방전 램프 |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE10063930A DE10063930C1 (de) | 2000-12-20 | 2000-12-20 | Stille Entladungslampe mit steuerbarer Farbe und Bildanzeigeeinrichtung mit dieser stillen Entladungslampe sowie Verfahren zum Betreiben derselben |
DE10063930.5 | 2000-12-20 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2002050873A1 true WO2002050873A1 (de) | 2002-06-27 |
Family
ID=7668244
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/DE2001/004281 WO2002050873A1 (de) | 2000-12-20 | 2001-11-15 | Stille entladungslampe mit steuerbarer farbe |
Country Status (10)
Country | Link |
---|---|
US (1) | US6696781B2 (de) |
EP (1) | EP1261983B1 (de) |
JP (1) | JP2004515902A (de) |
KR (1) | KR20020077443A (de) |
CN (1) | CN1404622A (de) |
AT (1) | ATE352099T1 (de) |
CA (1) | CA2400769A1 (de) |
DE (2) | DE10063930C1 (de) |
TW (1) | TW536724B (de) |
WO (1) | WO2002050873A1 (de) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2004003957A2 (en) * | 2002-07-01 | 2004-01-08 | Koninklijke Philips Electronics N.V. | Cathodoluminescent gas discharge display |
WO2007141183A2 (de) * | 2006-06-02 | 2007-12-13 | Osram Gesellschaft mit beschränkter Haftung | Entladungslampe für unipolare dielektrisch behinderte entladungen |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE10147961A1 (de) * | 2001-09-28 | 2003-04-10 | Patent Treuhand Ges Fuer Elektrische Gluehlampen Mbh | Dielektrische Barriere-Entladungslampe und Verfahren sowie Schaltunggsanordnung zum Zünden und Betreiben dieser Lampe |
KR100650491B1 (ko) * | 2004-02-27 | 2006-11-27 | 유양산전 주식회사 | 평판형 형광램프 |
US20060175973A1 (en) * | 2005-02-07 | 2006-08-10 | Lisitsyn Igor V | Xenon lamp |
KR101949075B1 (ko) | 2010-06-04 | 2019-02-15 | 액세스 비지니스 그룹 인터내셔날 엘엘씨 | 사용 현장의 물 처리 시스템, 유체 처리 시스템, 및 램프 조립체를 작동시키는 방법 |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5444335A (en) * | 1992-12-28 | 1995-08-22 | Mitsubishi Denki Kabushiki Kaisha | Method and apparatus for controlling an image display having gas discharge lamps |
EP0926705A1 (de) * | 1997-12-23 | 1999-06-30 | Patent-Treuhand-Gesellschaft für elektrische Glühlampen mbH | Flachstrahler mit örtlich modulierter Flächenleuchtdichte |
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 |
Family Cites Families (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5387921A (en) * | 1992-10-08 | 1995-02-07 | Panocorp Display Systems | Scanning back illuminating light source for liquid crystal and other displays |
US5461397A (en) * | 1992-10-08 | 1995-10-24 | Panocorp Display Systems | Display device with a light shutter front end unit and gas discharge back end unit |
JPH09297557A (ja) * | 1996-05-08 | 1997-11-18 | Mitsubishi Electric Corp | ガス放電表示装置 |
GB9803587D0 (en) * | 1998-02-23 | 1998-04-15 | Smiths Industries Plc | Gas discharge lamps and systems |
DE19817477A1 (de) * | 1998-04-20 | 1999-10-21 | Patent Treuhand Ges Fuer Elektrische Gluehlampen Mbh | Leuchtstofflampe mit auf die geometrische Entladungsverteilung abgestimmter Leuchtstoffschichtdicke |
DE19844721A1 (de) * | 1998-09-29 | 2000-04-27 | Patent Treuhand Ges Fuer Elektrische Gluehlampen Mbh | Entladungslampe für dielektrisch behinderte Entladungen mit verbesserter Elektrodenkonfiguration |
EP1082752A1 (de) * | 1999-03-25 | 2001-03-14 | Koninklijke Philips Electronics N.V. | Beleuchtungsanordnung |
DE19927791A1 (de) | 1999-06-18 | 2000-12-21 | Patent Treuhand Ges Fuer Elektrische Gluehlampen Mbh | Farbanzeige mit sequentieller Primärfarberzeugung |
-
2000
- 2000-12-20 DE DE10063930A patent/DE10063930C1/de not_active Expired - Fee Related
-
2001
- 2001-11-15 DE DE50111899T patent/DE50111899D1/de not_active Expired - Fee Related
- 2001-11-15 EP EP01271651A patent/EP1261983B1/de not_active Expired - Lifetime
- 2001-11-15 CN CN01805344A patent/CN1404622A/zh active Pending
- 2001-11-15 AT AT01271651T patent/ATE352099T1/de not_active IP Right Cessation
- 2001-11-15 KR KR1020027010490A patent/KR20020077443A/ko not_active Application Discontinuation
- 2001-11-15 US US10/203,753 patent/US6696781B2/en not_active Expired - Fee Related
- 2001-11-15 WO PCT/DE2001/004281 patent/WO2002050873A1/de active IP Right Grant
- 2001-11-15 JP JP2002551885A patent/JP2004515902A/ja active Pending
- 2001-11-15 CA CA002400769A patent/CA2400769A1/en not_active Abandoned
- 2001-11-21 TW TW090128802A patent/TW536724B/zh not_active IP Right Cessation
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5444335A (en) * | 1992-12-28 | 1995-08-22 | Mitsubishi Denki Kabushiki Kaisha | Method and apparatus for controlling an image display having gas discharge lamps |
EP0926705A1 (de) * | 1997-12-23 | 1999-06-30 | Patent-Treuhand-Gesellschaft für elektrische Glühlampen mbH | Flachstrahler mit örtlich modulierter Flächenleuchtdichte |
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 |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2004003957A2 (en) * | 2002-07-01 | 2004-01-08 | Koninklijke Philips Electronics N.V. | Cathodoluminescent gas discharge display |
WO2004003957A3 (en) * | 2002-07-01 | 2005-06-16 | Koninkl Philips Electronics Nv | Cathodoluminescent gas discharge display |
WO2007141183A2 (de) * | 2006-06-02 | 2007-12-13 | Osram Gesellschaft mit beschränkter Haftung | Entladungslampe für unipolare dielektrisch behinderte entladungen |
WO2007141183A3 (de) * | 2006-06-02 | 2008-06-26 | Osram Gmbh | Entladungslampe für unipolare dielektrisch behinderte entladungen |
Also Published As
Publication number | Publication date |
---|---|
TW536724B (en) | 2003-06-11 |
EP1261983A1 (de) | 2002-12-04 |
US20030020405A1 (en) | 2003-01-30 |
KR20020077443A (ko) | 2002-10-11 |
CA2400769A1 (en) | 2002-06-27 |
JP2004515902A (ja) | 2004-05-27 |
DE50111899D1 (de) | 2007-03-08 |
US6696781B2 (en) | 2004-02-24 |
ATE352099T1 (de) | 2007-02-15 |
EP1261983B1 (de) | 2007-01-17 |
DE10063930C1 (de) | 2002-08-01 |
CN1404622A (zh) | 2003-03-19 |
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