DE10347987A1 - Method for manufacturing electroluminescent light module for inside of cars, aircraft cabins, railway cars, etc. with electro luminescent film stack, its support element and connecting conductors - Google Patents

Method for manufacturing electroluminescent light module for inside of cars, aircraft cabins, railway cars, etc. with electro luminescent film stack, its support element and connecting conductors

Info

Publication number
DE10347987A1
DE10347987A1 DE10347987A DE10347987A DE10347987A1 DE 10347987 A1 DE10347987 A1 DE 10347987A1 DE 10347987 A DE10347987 A DE 10347987A DE 10347987 A DE10347987 A DE 10347987A DE 10347987 A1 DE10347987 A1 DE 10347987A1
Authority
DE
Germany
Prior art keywords
carrier element
layer sequence
electroluminescent layer
electrode layer
electroluminescent
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.)
Ceased
Application number
DE10347987A
Other languages
German (de)
Inventor
Michael Maryschka
Reinhard Mestan
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.)
Siemens AG
Original Assignee
Siemens AG
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 Siemens AG filed Critical Siemens AG
Priority to DE10347987A priority Critical patent/DE10347987A1/en
Publication of DE10347987A1 publication Critical patent/DE10347987A1/en
Application status is Ceased legal-status Critical

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Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B60VEHICLES IN GENERAL
    • B60QARRANGEMENT OF SIGNALLING OR LIGHTING DEVICES, THE MOUNTING OR SUPPORTING THEREOF OR CIRCUITS THEREFOR, FOR VEHICLES IN GENERAL
    • B60Q3/00Arrangement of lighting devices for vehicle interiors; Lighting devices specially adapted for vehicle interiors
    • B60Q3/70Arrangement of lighting devices for vehicle interiors; Lighting devices specially adapted for vehicle interiors characterised by the purpose
    • B60Q3/74Arrangement of lighting devices for vehicle interiors; Lighting devices specially adapted for vehicle interiors characterised by the purpose for overall compartment lighting; for overall compartment lighting in combination with specific lighting, e.g. room lamps with reading lamps
    • B60Q3/745Arrangement of lighting devices for vehicle interiors; Lighting devices specially adapted for vehicle interiors characterised by the purpose for overall compartment lighting; for overall compartment lighting in combination with specific lighting, e.g. room lamps with reading lamps using lighting panels or mats, e.g. electro-luminescent panels, LED mats

Abstract

The invention relates to a method for producing an electroluminescent light-emitting module (1) having an electroluminescent layer sequence (2), a carrier element (3) on which the electroluminescent layer sequence (2) is arranged, and electrical connection conductors (4, 5) for external electrical connection of the electroluminescent layer sequence (2). A carrier element (3) is manufactured in such a way that at least its luminous region (31) provided for the electroluminescent layer sequence (2) is subsequently present in its substantially final spatial form. After attaching the electrical connection conductor to the carrier element after or during its production, the electroluminescent layer sequence (2) is applied to the luminous region of the carrier element.

Description

  • The The invention relates to a method for producing an electroluminescent light-emitting module with an electroluminescent layer sequence, one between a front electrode layer and a back electrode layer arranged luminous pigment layer comprises, a support element, on which the electroluminescent layer sequence is arranged, and electrical connection conductors for external electrical connection of the Electroluminescent layer sequence. It further relates to a preferred Use of the method and an interior trim element, especially for Motor vehicles, airplanes or railway cars.
  • The The basic principle of electroluminescent layer sequences is, for example in the internet at www.lumintec.ch/d/download/DATSSATZ.doc published Article entitled "Electroluminescent Lamps / General information about Electroluminescent lamps "the LUMITEC AG, Switzerland, dated 10.04.2000.
  • Out another on www.lumintec.ch/d/news accessible Internet publication of the LUMITEC AG, Switzerland, with the title "Inmould with integrated Electroluminescence "is a method described with the three-dimensional lighting systems getting produced. Here are by means of deep drawing and punching prefabricated three-dimensionally shaped electroluminescent films installed in lighting systems.
  • This Procedure is technically very complex. Incidentally, the deep drawing brings and punching a significant risk of damage to the electroluminescent especially in bending areas with it. Damage to the electroluminescent foils can be local changed light intensities to total failure lead the slides.
  • Of the present invention is the object of a technical simplified method of the type mentioned above available in addition, the risk of damage to the electroluminescent layer sequence is reduced.
  • These The object is achieved by a method having the features of the claim 1 solved. Features of advantageous embodiments and further developments of the method are in the dependent claims 2 to 7 called. Preferred uses of the method are described in claims 8 and 9 indicated. In claim 10 is an interior trim element indicated with an electroluminescent layer sequence, which by means of a method according to the invention can be produced. Advantageous embodiments of such interior trim element are in the claims 11 to 15 indicated.
  • A method according to the invention has in particular the following method steps:
    • a) manufacturing the carrier element such that at least its luminous area provided for the electroluminescent layer sequence is subsequently present in its substantially final spatial form,
    • b) attaching the electrical connecting conductors to the carrier element after or during its production according to step a),
    • c) applying the electroluminescent layer sequence to the luminous region of the carrier element, and
    • d) connecting the front and the back electrode layer in each case with at least one electrical connection conductor after or during the application of the electroluminescent layer sequence according to step c).
  • The Front electrode layer, the back electrode layer and the luminescent pigment layer are preferably applied to the Carrier element laminated. In a particularly preferred embodiment the electrical connection conductors are partially in the carrier element embedded. The carrier element becomes expediently manufactured by means of an injection molding or transfer molding process and The connection conductors are injected into the carrier element or pressed. This ensures a technically simple and cost-effective production of the support element with the connecting conductors.
  • at an expedient embodiment of the method become the front electrode layer and the back electrode layer while the application of the electroluminescent layer sequence each with at least an electrical connection conductor is connected, preferably at least one connection region of the front electrode layer and the back electrode layer applied to a respective associated electrical connection conductor. This procedure advantageously saves a separate Step for electrically connecting the electrode layers to the Connecting conductors.
  • Especially suitable is a method according to the invention for the manufacture of interior lighting modules, in particular for motor vehicles, Aircraft cabins and railway cars. With the help of the method can advantageously on technically simple and for the electroluminescent layer sequence gentle way indoor lighting modules with curved Luminous areas are produced.
  • One according to a method of the invention producible interior trim element, for example for motor vehicles, Airplanes or railcars, comprising a support element, on or in the electrical connection conductors are applied or embedded. On the carrier element is an electroluminescent layer sequence with a front electrode layer, a back electrode layer and laminated therebetween a luminescent pigment layer. The front electrode layer is connected to a first electrical connection conductor and the back electrode layer is electrically connected to a second electrical connection conductor.
  • The Electroluminescent layer sequence may be on the side of the support element be arranged, which faces the interior to be illuminated. Preferably, then between the electroluminescent layer sequence and the carrier element a reflector for one of the electroluminescent layer sequence arranged in their operation emitted electromagnetic radiation or is the carrier element even made from a correspondingly reflective material. This advantageously achieves that one of the electroluminescent layer sequence to the support element reflected radiation towards the illuminated interior towards reflected and not absorbed by the support member becomes.
  • alternative this can be the support element a luminous area, the one from one of the electroluminescent layer sequence in the Operation emitted electromagnetic radiation at least partially permeable Material is made and in which the electroluminescent layer sequence is arranged on the side facing away from the interior of the carrier element. at this embodiment the carrier element acts advantageously at the same time as a protective layer against, for example, mechanical and chemical environmental factors.
  • at The last-mentioned embodiment is advantageous to the of support element opposite side of the electroluminescent layer sequence a reflector for one emitted by the electroluminescent layer sequence during their operation arranged electromagnetic radiation. This reflector can be a on the electroluminescent layer sequence applied reflector layer be. But it can also be the back electrode layer even made of a correspondingly reflective material be.
  • One particular advantage of the process and interior trim module consists in that the electroluminescent layer sequence after their application on the finished preformed carrier element is essentially no longer deformed and thus mechanical influences, the whose functional properties may affect are greatly reduced.
  • Further advantageous embodiments and further developments of the method and the interior trim element as well as other advantages will become apparent from the following explained with the figure Embodiments.
  • The FIG. 1 shows a schematic sectional view of a cross section by an electroluminescent light module with electroluminescent layer sequence.
  • The shown components of the electroluminescent light module and the proportions the constituents are not to be considered as true to scale. Rather, some details are for better understanding and for better visibility in the figure shown exaggeratedly large.
  • In a method of manufacturing the electroluminescent lighting module 1 (Here, an interior trim element for a motor vehicle, aircraft or railroad car) according to the figure is first with a, for example, spherically curved surface 31 provided carrier element 3 made of plastic, for example by means of injection molding or transfer molding, manufactured in such a way that subsequently at least that for an electroluminescent layer sequence 2 provided luminous area 31 in its essentially final spatial form. By this is meant that the luminous area 32 in which the electroluminescent layer sequence 2 is applied, after its application during further processing and assembly of the interior lining element 1 is essentially no longer changed in its form to any minor, for example, necessary for mounting twists or bends.
  • After or during the manufacture of the carrier element 3 become two electrical connection conductors 4 . 5 on the carrier element 3 applied (for example by means of structured metallization of the corresponding points of the surface of the carrier element) or in the carrier element 3 embedded. In the latter case shown in the figure, the electrical connection conductors 4 . 5 for example in the form of metal strips, which are inserted into the injection mold.
  • On the light area 32 the carrier element 3 then becomes an electroluminescent layer sequence 2 applied. For this purpose, first a material for a back electrode layer 23 applied, on the following a luminescent pigment layer 22 and after this, a material for a front electrode layer 21 is applied. The production of these layers can be carried out, for example, by means of a screen printing process or another suitable process.
  • A suitable luminescent pigment layer 22 consists for example of a plastic matrix, in which a doped zinc sulfide phosphor is embedded. The front electrode layer 21 is one for one of the electroluminescent layer sequence 2 Electromagnetic radiation emitted during operation at least partially permeable to allow a desired coupling of light. A suitable material for the front electrode layer 21 is indium tin oxide. The back electrode layer 23 can be made of a suitable metallic material.
  • The front electrode layer 21 and the back electrode layer 23 be during the application of the corresponding materials with the respectively associated electrical connection conductor 4 . 5 connected, in each case by a partial region of the two electrode layers with the respective associated electrical connection conductor 4 . 5 overlaps.
  • The electrical connection of the electrode layers 21 . 23 may alternatively after its application to the carrier element 3 For example, by means of a separate connection line, such as a conductor or a wire done.
  • Between the electroluminescent layer sequence 2 and the carrier element 3 In addition, a reflective layer 24 be arranged before the application of the back electrode layer 23 on the carrier element 3 for example, also applied by screen printing. This may be a suitable metallic layer. The type of metal depends on the wavelength of the light to be reflected. Alternatively, already the back electrode layer 23 be made of a correspondingly reflective material.
  • In another embodiment, the electroluminescent layer sequence 2 on the side facing away from the interior to be illuminated 33 the carrier element 3 applied. The carrier element can then be made entirely of a material that is suitable for one of the electroluminescent layer sequence 2 emitted electromagnetic radiation is at least partially permeable to their operation. Alternatively, only the subregion of the carrier element can be radiation-transmissive, on which the electroluminescent layer sequence 2 is applied. On the from the support element 3 opposite side of the electroluminescent layer sequence 2 a reflective layer can be applied. Alternatively, here as well, the back electrode layer 23 be made of a reflective material. It goes without saying that in this embodiment, first the radiation-transparent front electrode layer 21 , then the luminescent pigment layer 22 and to this the back electrode layer 23 is applied and that the course of the electrical connection conductor 4 . 5 to the changed position of the electroluminescent layer sequence 2 must be adjusted.
  • Both in the first-mentioned and in the second-mentioned embodiment, the electroluminescent layer sequence 2 with a sealing layer 25 provided to protect them from harmful environmental influences.
  • The Description of the invention with reference to the embodiments is of course not as a restriction of the invention to see this. Rather, all fall Modifications of methods for producing electroluminescent lighting modules within the scope of the invention, which is the principal technical teaching use the invention. For example, instead of the mentioned Electroluminescent layer sequences also follow organic light-emitting diode elements be used without this modification being the basic Thoughts of invention leaves. Of course the process is not for use in the manufacture of Indoor lighting restricted. Much more can in principle all Electroluminescent illuminant using the illustrated be made technical teaching. It is also conceivable that the carrier element produced by a method other than injection molding or transfer molding is and / or that it is made of a non-plastic material, such as glass or Ceramic is produced. All of these embodiments use with appropriate Embodiment of the electroluminescent layer sequence of the above basic technical teaching.

Claims (15)

  1. Method for producing an electroluminescent light-emitting module ( 1 ) with - an electroluminescent layer sequence ( 2 ), one between a front electrode layer ( 21 ) and a back electrode layer ( 23 ) arranged luminescent pigment layer ( 22 ), - a carrier element ( 3 ), on which the electroluminescent layer sequence ( 2 ), and - electrical connection conductors ( 4 . 5 ) for external electrical connection of the electroluminescent layer sequence ( 2 ), characterized by the method steps a) finishing of the carrier element ( 3 ), such that at least that for the electroluminescent layer sequence ( 2 ) provided luminous area ( 31 ) is present subsequently in its essentially final spatial form, b) attaching the electrical connection conductors to the carrier element ( 3 ) after or during its production according to step a), c) applying the electroluminescent layer sequence ( 2 ) on the illuminated area ( 31 ) of the carrier element ( 3 ), and d) connecting the front ( 21 ) and the back electrode layer ( 23 ) each with at least one electrical connection conductor ( 4 . 5 ) after or during the application of the electroluminescent layer sequence ( 2 ) according to step c).
  2. The method of claim 1, wherein in step c) the front electrode layer ( 21 ), the back electrode layer ( 23 ) and the luminescent pigment layer ( 22 ) on the carrier element ( 3 ) are laminated.
  3. Method according to Claim 1 or 2, in which the electrical connection conductors ( 4 . 5 ) partially into the carrier element ( 3 ) are embedded.
  4. Method according to one of claims 1 to 3, wherein the carrier element ( 3 ) is produced by means of an injection molding or transfer molding process.
  5. Method according to Claim 4, in which the connection conductors ( 4 . 5 ) in the carrier element ( 3 ) are injected or pressed.
  6. Method according to one of claims 1 to 5, wherein the front electrode layer ( 21 ) and the back electrode layer ( 22 ) during method step c) in each case with at least one electrical connecting conductor ( 4 . 5 ) get connected.
  7. Method according to Claim 6, in which at least one connection region of the front electrode layer ( 21 ) and the back electrode layer ( 22 ) to the respective associated electrical connection conductor ( 4 . 5 ) is applied.
  8. Use of a method according to one of claims 1 to 7 for producing an interior lighting module, in particular for motor vehicles, Aircraft cabins and railway cars.
  9. Use according to claim 8, for producing a Interior lighting module with at least one curved light area.
  10. Interior trim element, in particular for a motor vehicle, an aircraft or a railway carriage, with a carrier element, on or into the electrical connecting conductor ( 4 . 5 ) are applied or embedded and on which an electroluminescent layer sequence ( 2 ) with a front electrode layer ( 21 ), a back electrode layer ( 23 ) and a luminescent pigment layer ( 22 ) and the front electrode layer ( 21 ) and back electrode layer ( 23 ) each with an electrical connection conductor ( 4 . 5 ) are electrically connected.
  11. Interior lining element according to Claim 10, in which the electroluminescent layer sequence ( 2 ) on one side of the carrier element ( 3 ) is applied, which faces an interior to be illuminated.
  12. Interior lining element according to claim 11, wherein between the electroluminescent layer sequence ( 2 ) and the carrier element ( 3 ) a reflector for one of the electroluminescent layer sequence ( 2 ) in the operation of which emitted electromagnetic radiation is arranged or in which the carrier element ( 3 ) itself is made of a correspondingly reflective material.
  13. Interior lining element according to claim 10, comprising a carrier element ( 3 ) having a luminous area which consists of one for one of the electroluminescent layer sequence ( 2 ) in the operation of which emitted electromagnetic radiation is produced at least partially permeable material, and in which the electroluminescent layer sequence ( 2 ) on the side facing away from the interior of the carrier element ( 3 ) is arranged.
  14. Interior lining element according to claim 13, in which on the support element ( 3 ) side facing away from the electroluminescent layer sequence ( 2 ) a reflector for one of the electroluminescent layer sequence ( 2 ) in the operation emitted electromagnetic radiation is arranged.
  15. Interior lining element according to Claim 14, in which the reflector is a reflector layer which is incident on the electroluminescent layer sequence ( 2 ) is applied.
DE10347987A 2003-10-15 2003-10-15 Method for manufacturing electroluminescent light module for inside of cars, aircraft cabins, railway cars, etc. with electro luminescent film stack, its support element and connecting conductors Ceased DE10347987A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE10347987A DE10347987A1 (en) 2003-10-15 2003-10-15 Method for manufacturing electroluminescent light module for inside of cars, aircraft cabins, railway cars, etc. with electro luminescent film stack, its support element and connecting conductors

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE10347987A DE10347987A1 (en) 2003-10-15 2003-10-15 Method for manufacturing electroluminescent light module for inside of cars, aircraft cabins, railway cars, etc. with electro luminescent film stack, its support element and connecting conductors

Publications (1)

Publication Number Publication Date
DE10347987A1 true DE10347987A1 (en) 2005-06-02

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DE10347987A Ceased DE10347987A1 (en) 2003-10-15 2003-10-15 Method for manufacturing electroluminescent light module for inside of cars, aircraft cabins, railway cars, etc. with electro luminescent film stack, its support element and connecting conductors

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Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1792778A1 (en) 2005-12-01 2007-06-06 Siemens Aktiengesellschaft Illumination of the interior of a rail vehicle, in particular a passenger carriage
WO2007112715A1 (en) * 2006-03-31 2007-10-11 Eads Deutschland Gmbh Self-luminous element, and method for the production thereof
DE102007023958A1 (en) * 2007-05-23 2008-11-27 Hella Kgaa Hueck & Co. Signal light i.e. side marker light, for motor vehicle, has border foils extending to flat sides of illumination element layer such that illumination element layer is connected by injection molding with carrier and cover disk
DE102009029874A1 (en) * 2009-06-22 2010-12-23 Airbus Operations Gmbh Lighting device with a plurality of light sources
WO2012033600A1 (en) * 2010-08-24 2012-03-15 Key Plastics L.L.C. Lighting display and method of manufacturing same

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3512093A1 (en) * 1985-03-29 1986-10-02 Siemens Ag A process for producing a flat lighting unit
WO2003037041A1 (en) * 2001-10-25 2003-05-01 Harison Toshiba Lighting Corp. Light emitting apparatus

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3512093A1 (en) * 1985-03-29 1986-10-02 Siemens Ag A process for producing a flat lighting unit
WO2003037041A1 (en) * 2001-10-25 2003-05-01 Harison Toshiba Lighting Corp. Light emitting apparatus
EP1448026A1 (en) * 2001-10-25 2004-08-18 Harison Toshiba Lighting Corp. Light emitting apparatus

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1792778A1 (en) 2005-12-01 2007-06-06 Siemens Aktiengesellschaft Illumination of the interior of a rail vehicle, in particular a passenger carriage
WO2007112715A1 (en) * 2006-03-31 2007-10-11 Eads Deutschland Gmbh Self-luminous element, and method for the production thereof
DE102007023958A1 (en) * 2007-05-23 2008-11-27 Hella Kgaa Hueck & Co. Signal light i.e. side marker light, for motor vehicle, has border foils extending to flat sides of illumination element layer such that illumination element layer is connected by injection molding with carrier and cover disk
DE102009029874A1 (en) * 2009-06-22 2010-12-23 Airbus Operations Gmbh Lighting device with a plurality of light sources
US8686638B2 (en) 2009-06-22 2014-04-01 Airbus Operations Gmbh Lighting device having a plurality of light sources
WO2012033600A1 (en) * 2010-08-24 2012-03-15 Key Plastics L.L.C. Lighting display and method of manufacturing same

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