EP3549201B1 - Oled lichtquelle mit einem starken verbinder - Google Patents

Oled lichtquelle mit einem starken verbinder Download PDF

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Publication number
EP3549201B1
EP3549201B1 EP17811512.7A EP17811512A EP3549201B1 EP 3549201 B1 EP3549201 B1 EP 3549201B1 EP 17811512 A EP17811512 A EP 17811512A EP 3549201 B1 EP3549201 B1 EP 3549201B1
Authority
EP
European Patent Office
Prior art keywords
light source
connector
positioning means
connection portion
connecting tab
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.)
Active
Application number
EP17811512.7A
Other languages
English (en)
French (fr)
Other versions
EP3549201A1 (de
Inventor
Babacar Bathiery
Pascal Poirot
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.)
Valeo Vision SAS
Original Assignee
Valeo Vision 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 Valeo Vision SAS filed Critical Valeo Vision SAS
Publication of EP3549201A1 publication Critical patent/EP3549201A1/de
Application granted granted Critical
Publication of EP3549201B1 publication Critical patent/EP3549201B1/de
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S41/00—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps
    • F21S41/10—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by the light source
    • F21S41/14—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by the light source characterised by the type of light source
    • F21S41/141—Light emitting diodes [LED]
    • F21S41/155—Surface emitters, e.g. organic light emitting diodes [OLED]
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R12/00—Structural associations of a plurality of mutually-insulated electrical connecting elements, specially adapted for printed circuits, e.g. printed circuit boards [PCB], flat or ribbon cables, or like generally planar structures, e.g. terminal strips, terminal blocks; Coupling devices specially adapted for printed circuits, flat or ribbon cables, or like generally planar structures; Terminals specially adapted for contact with, or insertion into, printed circuits, flat or ribbon cables, or like generally planar structures
    • H01R12/50—Fixed connections
    • H01R12/59—Fixed connections for flexible printed circuits, flat or ribbon cables or like structures
    • H01R12/592—Fixed connections for flexible printed circuits, flat or ribbon cables or like structures connections to contact elements
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S41/00—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S43/00—Signalling devices specially adapted for vehicle exteriors, e.g. brake lamps, direction indicator lights or reversing lights
    • F21S43/10—Signalling devices specially adapted for vehicle exteriors, e.g. brake lamps, direction indicator lights or reversing lights characterised by the light source
    • F21S43/13—Signalling devices specially adapted for vehicle exteriors, e.g. brake lamps, direction indicator lights or reversing lights characterised by the light source characterised by the type of light source
    • F21S43/14—Light emitting diodes [LED]
    • F21S43/145—Surface emitters, e.g. organic light emitting diodes [OLED]
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
    • H01R13/40—Securing contact members in or to a base or case; Insulating of contact members
    • H01R13/42—Securing in a demountable manner
    • H01R13/436—Securing a plurality of contact members by one locking piece or operation

Definitions

  • the present invention relates to light sources, in particular for a lighting and / or signaling device of a motor vehicle, of the organic light-emitting diode type, called OLEDs in what follows.
  • It relates more particularly to the electrical connection of an OLED of a lighting device to an external element such as an electrical supply network of the motor vehicle.
  • the light sources used for lighting and signaling in motor vehicles are more and more frequently made up of light-emitting diodes, in particular for the advantages of size and range compared to conventional light sources.
  • the use of electroluminescent diodes in lighting and / or signaling modules has also enabled market players (automobile manufacturers and designers of lighting and / or signaling devices) to bring a creative touch to the design of these devices, in particular for the use of an ever greater number of these light-emitting diodes to achieve optical effects.
  • Certain lighting devices for motor vehicles also take advantage of OLED technology, the main attraction of which is the realization of complex shapes improving the aesthetic appearance of the device and of the lighting.
  • Light devices comprising an OLED source have in particular been used for rear position light functions.
  • connection between cathode and anode of the OLED is generally made via a flexible printed circuit, or fPCB hereinafter, for “flexible Printed Circuit Board ” in English.
  • the figure 1 illustrates an OLED 100 according to the prior art.
  • An fBCP 101 is connected to the anode and cathode of the OLED.
  • the connection with the power supply of the motor vehicle is made by welding a first wire 102.1 and a second wire 102.3, the first wire 102.1 being attached to the anode, and the second wire 102.2 being attached to the cathode, for example.
  • the fPCB 101 is generally thin and the solder bond is brittle.
  • EP 3,026,761 discloses a light source according to the preamble of claim 1.
  • the present invention improves the situation.
  • connection portion is a flexible printed circuit forming an anode and a cathode of the organic light-emitting diode.
  • the connector may include tabs for connection to the external element.
  • the light source can comprise two connection tabs, a first connection tab being intended to be connected to the anode and a second connection tab being intended to be connected to the cathode.
  • both the anode and the cathode can be easily connected to the outer member.
  • connection tabs may have different sizes or shapes.
  • Such an embodiment makes it possible to easily differentiate the tabs, thus facilitating the connection of the light source to the external element which can be a supply circuit.
  • the plating means may be able to at least partially encapsulate the organic light-emitting diode so as to press each tab against the connection portion.
  • the elements of the light source are mechanically connected, improving the strength of the connection between the tabs and the connection portion.
  • the plating means can comprise a first part and a second part, the first and second parts being able to be assembled so as to achieve the encapsulation of the organic light-emitting diode.
  • first and second parts can be connected by a hinge.
  • the plating means may fully encapsulate the organic light emitting diode.
  • the material of the plating means can be waterproof, thus ensuring the tightness of the light source.
  • the connector comprises a first positioning means and the plating means comprises a second positioning means, the first and second positioning means being complementary so as to position the connector in a predetermined position on the connection portion .
  • the connector can comprise at least two first positioning means and the plating means comprises at least two second positioning means, the first and second positioning means being complementary so as to position and block the connector in rotation. in a predetermined position on the connection portion.
  • the light source is stable and robust and can be accurately connected to the outdoor element.
  • the connector may comprise gold and the electronic connection portion comprises a nickel-gold alloy.
  • the connector can include tin and the electronic connection portion includes tin.
  • a second aspect of the invention relates to a light module for a motor vehicle comprising at least one light source according to the first aspect of the invention.
  • the light module comprises at least a first light source comprising a first connector and a second light source comprising a second connector, and the first and second connectors have different respective sizes or shapes.
  • the light sources can thus have different characteristics without running the risk of making an error in the connection of the light sources to the external element which may be a supply circuit.
  • first connector of the first light source includes a first connector tab and a second connector tab
  • second connector of the second light source includes a third connector tab and a fourth connector tab and a first spacing between the first connection tab and the second connection tab is different from a second spacing between the third connection tab and the fourth connection tab.
  • the Figure 2 illustrates the structure of a part of a light source 200 according to one embodiment of the invention.
  • the light source includes an organic light emitting diode 207.
  • the organic light emitting diode 200 further comprises a connector adapted to receive a power supply from an element external to the organic light emitting diode 207.
  • the connector comprises, by way of illustration, a first tongue 204.1 and a second tongue 204.2.
  • the first tab 204.1 is for example intended to be in contact with the anode and the second tab 204.2 is intended to be in contact with the cathode.
  • the first and second tabs are separated. he can however, within the framework of the invention, provision should be made to connect the two tabs mechanically by an insulating element, so that the connector is in one piece.
  • the first tongue 202.1 may comprise a first elongated part 203.1 intended to be in contact with the electronic connection portion 201 and a second elongated part 204.1 intended to be in contact with the external element or with an intermediate element between the light source 200 and the external element.
  • the second tongue 202.2 may include a first elongated portion 203.2 intended to be in contact with the electronic connection portion 201 and a second elongated portion 204.2 intended to be in contact with the outer element or with an intermediate element between the light source 200 and the exterior element.
  • the first tongue 202.1 and the second tongue 202.2 may further comprise means of the respective positioning means.
  • the first tongue 202.1 can comprise at least one first positioning means 205.1, but preferably further comprises two first positioning means 205.1 and 206.1.
  • the second tongue 202.2 can comprise at least one first positioning means 205.2 but preferably comprises two first positioning means 205.2 and 206.2.
  • the positioning means are holes.
  • the invention is in no way limited to such an example.
  • the Figure 3 presents a light source 200 according to one embodiment of the invention.
  • the light source 200 comprises, in addition to the elements described with reference to figure 2 , a plating means 208 of the connector on the portion of electronic connection 201.
  • Plating means means any means capable of applying a mechanical stress to the connector, to the electronic connection portion 201 and / or to the OLED 200 connected to the electronic connection portion 201, so as to ensure contact. between the electrical connection portion 201 and the connector.
  • the plating means may be able to at least partially encapsulate the OLED 200 so as to press each of the tabs 202.1 and 202.2 against the electronic connection portion 201.
  • the plating means 208 comprises a first part 208.1 and a second part 208.2, the first and second parts 208.1 and 208.2 being able to be assembled so as to achieve the encapsulation of the OLED 200.
  • the first and second parts have complementary shapes making it possible to apply a mechanical stress, such as a spring effect, between the OLED comprising the electronic connection portion 201 and the tongues 202.1 and 202.2.
  • the first parts 203.1 and 203.2 of the tongues 202.1 and 202.2 may comprise contact bumps or projections 211.1 and 211.2.
  • At least one of the first and second parts 208.1 and 208.2 is made of a transparent material so as to protect the OLED while allowing the light emitted by the latter to pass.
  • the plating means 208 is able to fully encapsulate the OLED 200, which makes it possible in particular to ensure the tightness of the OLED 200.
  • first and second parts 208.1 and 208.2 can be connected by a hinge, not shown on the figures 3 and 4 .
  • the first and second parts 208.1 and 208.2 can be glued.
  • the plating means 208 comprises at least one second positioning means 209.1 complementary to one of the first positioning means of the connector 202.
  • the plating means 208 preferably comprises at least two second positioning means 209.1 and 209.2 complementary to two first means for positioning the connector 202.
  • the use of two second positioning means makes it possible not only to position the connector 202 in a predetermined position on the connection portion 201, but also to lock the connector 202 in rotation in a predetermined position on the connection portion 201.
  • the first part 208.1 comprises, for each connection tab 202, two second positioning means 209.1 and 210.1, and 209.2 and 210.2, respectively, so as to block in rotation each connection tab 202.1 and 202.2.
  • the first positioning means 205.1, 206.1, 205.2 and 206.2 can be holes and the second positioning means 209.1, 210.1, 209.2 and 210.2 can be studs, complementary to the holes.
  • the first positioning means 205.1, 206.1, 205.2 and 206.2 can be studs and the second positioning means 209.1, 210.1, 209.2 and 210.2 can be holes, complementary to the studs. No restriction is however attached to the first and second positioning means, and the invention is in no way limited to the examples presented with reference to the figures.
  • the figure 5 presents a light module 500 according to one embodiment of the invention.
  • the light module 500 comprises at least one light source 200.1 as described above.
  • the light module comprises a first light source 200.1 and a second light source 200.2.
  • the first light source 200.1 comprises a first connection tab 202.1 and a second connection tab 202.2
  • the second light source 200.2 comprises a third connection tab 202.3 and a fourth connection tab 202.4.
  • the OLEDs 200.1 and 200.2 can have different emission surfaces, it may be necessary to supply them with different currents.
  • an external element such as a power supply circuit for the light module 500, it is advantageous to be able to differentiate the different OLEDs 200.1 and 200.2, thus avoiding supplying an OLED with a non-power supply current. - appropriate which could damage the OLED.
  • first and second connection tabs 202.1 and 202.2 may have different sizes and / or shapes.
  • third and second connection tabs 202.3 and 202.4 may differ from a second spacing between the third and fourth connection tabs 202.3 and 202.4.

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Optics & Photonics (AREA)
  • General Engineering & Computer Science (AREA)
  • Electroluminescent Light Sources (AREA)

Claims (13)

  1. Lichtquelle (200), umfassend:
    - eine organische Elektrolumineszenzdiode (207);
    - einen elektronischen Verbindungsabschnitt (201), der dafür geeignet ist, die elektrische Versorgung der organischen Elektrolumineszenzdiode zu gestatten;
    - einen Verbinder (202), der dafür geeignet ist, eine elektrische Versorgung von einem externen Element zu empfangen;
    - ein Mittel (208) zum Plattieren des Verbinders auf dem Verbindungsabschnitt;
    dadurch gekennzeichnet, dass
    der Verbindungsabschnitt (201) eine flexible gedruckte Schaltung ist, die eine Anode und eine Kathode der organischen Elektrolumineszenzdiode (207) bildet.
  2. Lichtquelle nach Anspruch 1, wobei der Verbinder (202) Verbindungszungen (202.1; 202.2) mit dem externen Element umfasst.
  3. Lichtquelle nach Anspruch 2, umfassend zwei Verbindungszungen (202.1; 202.2), wobei eine erste Verbindungszunge dazu bestimmt ist, mit der Anode verbunden zu werden, und eine zweite Verbindungszunge dazu bestimmt ist, mit der Kathode verbunden zu werden.
  4. Lichtquelle nach einem der Ansprüche 2 bis 3, wobei das Plattierungsmittel (208) dafür geeignet ist, mindestens teilweise die organische Elektrolumineszenzdiode (207) derart einzukapseln, dass jede Verbindungszunge (202.1; 202.2) gegen den elektronischen Verbindungsabschnitt (201) gepresst wird.
  5. Lichtquelle nach Anspruch 4, wobei das Plattierungsmittel (208) einen ersten Teil (208.1) und einen zweiten Teil (208.2) umfasst, wobei der erste und zweite Teil dafür geeignet sind, derart zusammengesetzt zu werden, dass eine Einkapselung der organischen Elektrolumineszenzdiode (207) vorgenommen wird.
  6. Lichtquelle nach Anspruch 5, wobei der erste und zweite Teil (208.1; 208.2) durch ein Scharnier verbunden sind.
  7. Lichtquelle nach einem der Ansprüche 4 bis 6, wobei das Plattierungsmittel (208) die organische Elektrolumineszenzdiode (207) vollständig einkapselt.
  8. Lichtquelle nach einem der Ansprüche 1 bis 7, wobei der Verbinder (202) ein erstes Positionierungsmittel (205.1) umfasst, und das Plattierungsmittel ein zweites Positionierungsmittel (209.1) umfasst, wobei das erste und zweite Positionierungsmittel derart komplementär sind, dass der Verbinder in einer vorherbestimmten Position auf dem Verbindungsabschnitt positioniert wird.
  9. Lichtquelle nach Anspruch 8, wobei:
    - das erste Positionierungsmittel ein Kontaktstück umfasst, und das zweite Positionierungsmittel ein zu dem Kontaktstück komplementäres Loch umfasst; oder
    - das zweite Positionierungsmittel ein Kontaktstück umfasst, und das erste Positionierungsmittel ein zu dem Kontaktstück komplementäres Loch umfasst.
  10. Lichtquelle nach Anspruch 8 und 9, wobei der Verbinder (202) mindestens zwei erste Positionierungsmittel umfasst, und das Plattierungsmittel mindestens zwei zweite Positionierungsmittel umfasst, wobei die ersten und zweiten Positionierungsmittel derart komplementär sind, dass der Verbinder in einer vorherbestimmten Position auf dem Verbindungsabschnitt (201) positioniert und in Drehung blockiert wird.
  11. Lichtmodul für ein Kraftfahrzeug, umfassend mindestens eine Lichtquelle nach einem der Ansprüche 1 bis 10.
  12. Lichtmodul nach Anspruch 11, umfassend mindestens eine erste Lichtquelle, umfassend einen ersten Verbinder, und eine zweite Lichtquelle, umfassend einen zweiten Verbinder, und wobei der erste und zweite Verbinder jeweils unterschiedliche Größen oder Formen aufweisen.
  13. Lichtmodul nach Anspruch 12, wobei der erste Verbinder der ersten Lichtquelle (200.1) eine erste Verbindungszunge (202.1) und eine zweite Verbindungszunge (202.2) umfasst, und der zweite Verbinder der zweiten Lichtquelle eine dritte Verbindungszunge (202.3) und eine vierte Verbindungszunge (202.4) umfasst,
    wobei ein erster Abstand zwischen der ersten Verbindungszunge und der zweiten Verbindungszunge von einem zweiten Abstand zwischen der dritten Verbindungszunge und der vierten Verbindungszunge verschieden ist.
EP17811512.7A 2016-12-02 2017-11-27 Oled lichtquelle mit einem starken verbinder Active EP3549201B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR1661828A FR3059830B1 (fr) 2016-12-02 2016-12-02 Source lumineuse a oled avec connecteur robuste
PCT/EP2017/080553 WO2018099868A1 (fr) 2016-12-02 2017-11-27 Source lumineuse à oled avec connecteur robuste

Publications (2)

Publication Number Publication Date
EP3549201A1 EP3549201A1 (de) 2019-10-09
EP3549201B1 true EP3549201B1 (de) 2020-09-02

Family

ID=57796707

Family Applications (1)

Application Number Title Priority Date Filing Date
EP17811512.7A Active EP3549201B1 (de) 2016-12-02 2017-11-27 Oled lichtquelle mit einem starken verbinder

Country Status (4)

Country Link
EP (1) EP3549201B1 (de)
CN (1) CN110050388B (de)
FR (1) FR3059830B1 (de)
WO (1) WO2018099868A1 (de)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2021156410A1 (fr) * 2020-02-06 2021-08-12 Armor Solar Power Films Dispositif électronique destiné à être raccordé à un connecteur électrique et procédé de raccordement associé

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3622665B2 (ja) * 1999-12-10 2005-02-23 セイコーエプソン株式会社 接続構造、電気光学装置および電子機器
JP2006302713A (ja) * 2005-04-21 2006-11-02 Koito Mfg Co Ltd 車両用前照灯
KR102170086B1 (ko) * 2013-09-11 2020-10-26 엘지디스플레이 주식회사 커넥터
CN108644732B (zh) * 2013-12-25 2020-12-29 株式会社小糸制作所 车辆用灯具
FR3025866A1 (fr) * 2014-09-15 2016-03-18 Valeo Vision Support de source lumineuse avec connecteur integre
EP3026761A1 (de) * 2014-11-27 2016-06-01 odelo GmbH Direktsteckverbindung zur elektrischen Kontaktierung flexibler Leiterbahnträger in Fahrzeugleuchten

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
None *

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2021156410A1 (fr) * 2020-02-06 2021-08-12 Armor Solar Power Films Dispositif électronique destiné à être raccordé à un connecteur électrique et procédé de raccordement associé
FR3107143A1 (fr) * 2020-02-06 2021-08-13 Armor Beautiful Light Dispositif électronique destiné à être raccordé à un connecteur électrique et procédé de raccordement associé

Also Published As

Publication number Publication date
CN110050388B (zh) 2020-10-30
WO2018099868A1 (fr) 2018-06-07
CN110050388A (zh) 2019-07-23
FR3059830A1 (fr) 2018-06-08
FR3059830B1 (fr) 2019-05-24
EP3549201A1 (de) 2019-10-09

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