EP3141812B1 - Leuchtvorrichtung mit organischer elektrolumineszenzdiode - Google Patents

Leuchtvorrichtung mit organischer elektrolumineszenzdiode Download PDF

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Publication number
EP3141812B1
EP3141812B1 EP16187032.4A EP16187032A EP3141812B1 EP 3141812 B1 EP3141812 B1 EP 3141812B1 EP 16187032 A EP16187032 A EP 16187032A EP 3141812 B1 EP3141812 B1 EP 3141812B1
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EP
European Patent Office
Prior art keywords
emitting diode
organic light
light
lighting device
oled
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
EP16187032.4A
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English (en)
French (fr)
Other versions
EP3141812A1 (de
Inventor
David Hue
Hui Jin
Sébastien Aufort
Guillaume ALTERMATT
Stéphane Patrizi
Olivier Ruat
Miguel-Angel JIMENEZ
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
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Valeo Vision SAS
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Publication date
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Publication of EP3141812A1 publication Critical patent/EP3141812A1/de
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Publication of EP3141812B1 publication Critical patent/EP3141812B1/de
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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V19/00—Fastening of light sources or lamp holders
    • F21V19/001—Fastening of light sources or lamp holders the light sources being semiconductors devices, e.g. LEDs
    • F21V19/003—Fastening of light source holders, e.g. of circuit boards or substrates holding light sources
    • F21V19/005—Fastening of light source holders, e.g. of circuit boards or substrates holding light sources by permanent fixing means, e.g. gluing, riveting or embedding in a potting compound
    • 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
    • F21S41/60—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by a variable light distribution
    • F21S41/65—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by a variable light distribution by acting on light sources
    • F21S41/657—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by a variable light distribution by acting on light sources by moving light sources
    • 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]
    • 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
    • F21S43/19—Attachment of light sources or lamp holders
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO THE FORM OR THE KIND OF THE LIGHT SOURCES OR OF THE COLOUR OF THE LIGHT EMITTED
    • F21Y2105/00—Planar light sources
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO THE FORM OR THE KIND OF THE LIGHT SOURCES OR OF THE COLOUR OF THE LIGHT EMITTED
    • F21Y2107/00—Light sources with three-dimensionally disposed light-generating elements
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO THE FORM OR THE KIND OF THE LIGHT SOURCES OR OF THE COLOUR OF THE LIGHT EMITTED
    • F21Y2107/00—Light sources with three-dimensionally disposed light-generating elements
    • F21Y2107/20—Light sources with three-dimensionally disposed light-generating elements on convex supports or substrates, e.g. on the outer surface of spheres
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO THE FORM OR THE KIND OF THE LIGHT SOURCES OR OF THE COLOUR OF THE LIGHT EMITTED
    • F21Y2115/00—Light-generating elements of semiconductor light sources
    • F21Y2115/10—Light-emitting diodes [LED]
    • F21Y2115/15—Organic light-emitting diodes [OLED]

Definitions

  • the invention relates to the field of lighting and signaling devices for a motor vehicle.
  • this type of device tends to become more complex because of the increasing number of functions that these devices are intended to implement. Among these functions, there is included the implementation of scrolling direction indicator directions. Moreover, there is a need to give these devices an aesthetic character which contributes in particular to define the overall appearance, or "visual signature" of the vehicle considered, and which differentiates it from other vehicles. For example, this aesthetic character can take the form of a device whose emission surface extends in three dimensions.
  • a light device according to the preamble of claim 1 is described in the document WO 2014/065169 A1 as well as in the document DE 10 2013 225 796 A1 .
  • the invention aims to present a light device for a motor vehicle that allows the definition of a particular visual signature for this vehicle while having an optimized design, reliability and compactness.
  • the invention proposes a light device, in particular lighting and / or signaling, for a motor vehicle, the light device comprising at least one support comprising a mounting face extending in three directions perpendicular two by two, and an organic electroluminescent diode mounted on the mounting face of the support.
  • the mounting face thus has a surface extending in three dimensions.
  • this mounting face may have the shape of a developable surface.
  • the organic light-emitting diode has an installation face and a light-emitting face opposite to the installation face, the organic light-emitting diode being mounted on the support via its installation face.
  • the organic electroluminescent diode may be arranged so that it is able to emit light via its light-emitting face in a general direction substantially parallel to a normal of the mounting face.
  • the organic electroluminescent diode is flexible.
  • the organic electroluminescent diode is mounted on the mounting face so as to have a shape identical to that of the mounting face.
  • the organic light-emitting diode is mounted so that no play is present between its installation face and the mounting face of the support. In other words, the diode is mounted on the support without play.
  • the organic light-emitting diode is bonded to the mounting face, in particular via its installation face. If desired, the light-emitting diode may be bonded to the mounting face with a double-sided adhesive film. Alternatively, the organic light emitting diode can be glued with an adhesive.
  • the device comprises a positioning pin attached to the organic light-emitting diode and inserted into an orifice of the support.
  • the positioning pin may for example be glued to the installation face of the diode.
  • the positioning pin may be provided with a fastener, for example a clip, from the organic electroluminescent diode to the support. If necessary, the device may be devoid of adhesive connecting the diode to the support.
  • the organic electroluminescent diode is made directly on the support.
  • the device can be devoid of any means of fixing the organic light-emitting diode to the support.
  • the organic light-emitting diode may for example be produced by a method of evaporation under vacuum on the support, including steps of metallization of the support and deposits of organic material emitting light and electrode, or by a method of printing under the support.
  • the light device comprises a first module comprising said organic light-emitting diode forming a first organic light-emitting diode, a second module comprising a second organic light-emitting diode and a control module arranged to control the first and second electroluminescent diodes. modules so that the light device performs a scrolling direction indicator function.
  • each organic light-emitting diode may be able to emit amber light.
  • control module is arranged to control the first and second modules so that the organic light-emitting diodes are sequentially in an active configuration.
  • active configuration is meant a configuration of the organic light-emitting diode into which light emitted by said diode exits the device to participate in said scrolling direction indicator function.
  • each organic light-emitting diode is movably mounted, for example in rotation, in the light device.
  • each module comprises an actuator associated with the organic light-emitting diode of said module for selectively bringing said organic light-emitting diode into a rest position, in which the emission face of the organic light-emitting diode is masked so that little or no light emitted by the organic light-emitting diode can exit the light device, and in an active position, in which the emission face of the organic light-emitting diode is visible so that light emitted by the organic light-emitting diode can exit. the light device to participate in said scrolling direction indicator function.
  • control module is arranged to control the actuators so as to sequentially bring each organic light-emitting diode into its active position, which thus forms the active configuration.
  • control module is arranged to control the ignition of the first and second modules so as to achieve a sequential ignition of the first and second organic light emitting diodes.
  • control module is arranged to control the supply of each organic light-emitting diode so as to turn on or off this diode. In this case, the active configuration of this diode is when it is lit.
  • the first and second modules are arranged in such a way that the first organic light-emitting diode is disposed towards the interior of the vehicle and the second organic light-emitting diode is disposed towards the outside of the vehicle, when the light device is mounted in the vehicle. motor vehicle.
  • the control module is arranged to turn on the first organic light-emitting diode before the second organic light-emitting diode.
  • the control module may be arranged so that the first organic light-emitting diode remains on during the ignition of the second organic light-emitting diode. The control module thus implements a sequential and progressive ignition of the organic light-emitting diodes from the inside to the outside of the vehicle.
  • the first organic light-emitting diode is distinct from the second organic light-emitting diode.
  • each organic electroluminescent diode has a pair of electrodes, these pairs of electrodes being distinct from one diode to the other.
  • the first and second organic light-emitting diodes may comprise a common electrode.
  • each organic light-emitting diode forms a distinct segment of a single global organic light-emitting diode of the light device.
  • said global organic light-emitting diode has a first face comprising an electrode, for example an anode, which continues along its entire length, a second segmented surface comprising an alternation of a plurality of second electrodes and electrically insulating strips, and a layer organic material capable of emitting light disposed between the first and second faces.
  • Each segment formed by a portion of the first electrode, a portion of the organic material layer and a second electrode thus forms one of said organic light emitting diodes.
  • the first electrode may be able to pass light, for example by being transparent, and form a light-emitting face of each organic light-emitting diode and each second electrode forms an installation face of each diode electroluminescent organic.
  • the first face may also be segmented.
  • the Figure 1 illustrates a light device 1 according to the invention.
  • the light device 1 comprises a global organic light-emitting diode or OLED 2.
  • the OLED 2 has a first reflective face 21 made of aluminum forming an anode 21 of the OLED 2.
  • the anode 21 extends continuously over any the length of the OLED 2.
  • OLED 2 comprises a second face 22.
  • the second face 22 is segmented, namely that it comprises an alternation of cathodes 221 transparent and made of indium-tin oxide or ITO and insulating strips 222 electrically.
  • OLED 2 finally comprises a layer 23 formed of a superposition of sub-layers of organic material able to emit amber-colored light when electrically powered.
  • the layer 23 is disposed between the first and second faces 21 and 22 so that part of the light it emits passes through the cathode 221 and the other part of this light is reflected by the anode 21 and also passes through the cathode 221.
  • Each superposition of a cathode 221, a portion of the layer 23 and a part of the anode 21 located opposite this cathode 221 forms a segment of the global OLED 2 which is selectively activatable. .
  • This segment thus itself forms an OLED whose light emitting face is its transparent cathode 221 and whose anode 21 is common to the other segments. It goes without saying that the anode 21 could also be segmented.
  • the light device thus comprises five modules 31 to 35, each formed by one of the segments of the global OLED 2.
  • the light device further comprises a control module 4 connected on the one hand to each cathode 221 of the modules 31 to 35 by wires 41 to 45 and to the common anode 21 by a wire 46.
  • the control module 4 can thus selectively supplying each of the modules 31 to 35, via the wires 41 to 45, so as to selectively switch on the OLEDs of these modules.
  • the control module 4 is here arranged in the form of a microcontroller comprising a memory unit (not shown) in which is stored a sequential ignition control of the modules 31 to 35 to achieve a running direction indicator.
  • the modules 31 to 35 are arranged in the device 1 so that the OLED of the first module 31 is disposed towards the inside of the vehicle and the OLED of the last module 35 is disposed towards the outside of the vehicle, when the luminous device 1 is mounted in a motor vehicle.
  • the control module 4 When the control module receives a command to initiate the sequence for the realization of the running direction indicator, the control module 4 first supplies the module 31 to turn on the OLED of this module 31 ( figure 2b ). After a lapse of time of 200 ms or less, the control module 4 supplies the module 32 to ignite the first organic light-emitting diode of this module 32, while continuing to supply the module 31 (FIG. Figure 2c ). The control module 4 thus continues to sequentially light up the OLEDs of the following modules while keeping the OLEDs of the preceding modules on ( Figures 2d and 2e ), until all the OLEDs of the modules 31 to 35 are lit ( figure 2f ).
  • the control module 4 thus implements a sequential and progressive ignition of the OLEDs from the inside to the outside of the vehicle. In this case, the apparent light surface formed by the set of all OLEDs on is continuous. In addition, once all these OLEDs are lit, the control module 4 simultaneously interrupts the power supply of all the OLEDs, then repeats the sequence until the reception of a command to interrupt the sequence, and thus realizes an indicator regulatory direction, for example as defined in the UNECE Regulation No. 6 on direction indicators, paragraph ⁇ 5.6.
  • the light device 5 comprises five light modules 51 to 55 each comprising an organic light emitting diode OLED 61 to 65, the OLEDs 61 to 65 being distinct from each other.
  • Each OLED 61 to 65 is rotatably mounted about an axis 71 to 75 in the light device 5 and each module comprises an actuator 81 to 85 associated with the OLED 61 to 65 of said module to drive the axis 71 to 75 and selectively bring said OLED into a rest position (P) and into an active position (A).
  • OLED 65 is represented in its rest position (P) where its face emission is masked so that little or no light emitted can emerge from the light device 1.
  • the OLEDs 61 to 64 are represented in an active position, in which their emission face is visible so as to that the light they emit may emerge from the luminous device 1 to participate in said scrolling direction indicator function.
  • the light device 1 comprises a control module 9 which is arranged to control the actuators 71 to 75 so as to sequentially bring each organic light-emitting diode into its active position.
  • figure 4 an exploded view of the light device 1 of the figure 1 , in which the segmentation of the global OLED 2 is not represented.
  • the light device 1 comprises a support 11 comprising a mounting face 111 extending in three perpendicular directions X, Y and Z in pairs to form a developable surface.
  • the global OLED 2 is mounted on the mounting face 111 of the support 11.
  • the mounting face 111 has a cylindrical shape, but the invention is not limited to that only form of developable surface.
  • OLED 2 has an installation face 21 formed by the anode and a light-emitting face formed by the face 22, opposite the installation face 21.
  • the OLED 2 is flexible and is mounted on the mounting face 111 so as to conform to the profile of this mounting face 111 and thus have a shape identical to that of this mounting face 111.
  • the OLED 2 is mounted on the support 11 without play.
  • OLED 2 is bonded to the mounting face 111 by means of a double-sided adhesive film 12.
  • control module 4 is also mounted on the mounting face 111 with the aid of a double-sided film 13.
  • the device 1 comprises a positioning pin 14 fixed in advance to the installation face 21 of the OLED 2 by the double-sided adhesive film 12.
  • the pin 14 is inserted into an orifice 15 of the support 11 so as to position the OLED 2 in a predetermined position on this support 11.
  • the positioning pin 14 is provided with a clip 16 allowing, in addition to its positioning function, to secure the OLED 2 to the support 11.
  • This method of attachment thus makes it possible to eliminate the double adhesive film. -faces of the figure 4 connecting OLED 2 to support 11.

Landscapes

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

Claims (6)

  1. Beleuchtungsvorrichtung (1) für ein Kraftfahrzeug, wobei die Beleuchtungsvorrichtung mindestens einen Träger (11) umfasst, der eine Montagefläche (111) umfasst, die sich in drei zueinander senkrechten Richtungen (X, Y, Z) erstreckt, und eine organische Leuchtdiode (2), die auf der Montagefläche des Trägers montiert ist, dadurch gekennzeichnet, dass sie einen Positionierstift (14) umfasst, der an der organischen Leuchtdiode (2) befestigt und in eine Öffnung (15) des Trägers (11) eingesetzt ist.
  2. Lichtvorrichtung (1) nach Anspruch 1, wobei die organische Leuchtdiode (2) flexibel ist.
  3. Beleuchtungsvorrichtung (1) nach dem vorigen Anspruch, bei der die organische Leuchtdiode (2) auf der Montagefläche (111) so montiert ist, dass sie eine mit der Montagefläche identische Form aufweist.
  4. Lichtvorrichtung (1) nach einem der vorstehenden Ansprüche, wobei die organische Leuchtdiode (2) mit der Montagefläche (111) verklebt ist.
  5. Beleuchtungsvorrichtung (1) nach dem vorstehenden Anspruch, dadurch gekennzeichnet, dass die Leuchtdiode (2) mit der Montagefläche (111) mittels einer doppelseitigen Klebefolie (12) verklebt ist.
  6. Beleuchtungsvorrichtung (1) nach einem der vorstehenden Ansprüche, dadurch gekennzeichnet, dass der Positionierstift (14) mit einem Befestigungselement (16) zur Befestigung der organischen Leuchtdiode (2) am Träger (11) versehen ist.
EP16187032.4A 2015-09-08 2016-09-02 Leuchtvorrichtung mit organischer elektrolumineszenzdiode Active EP3141812B1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR1558336A FR3040758B1 (fr) 2015-09-08 2015-09-08 Dispositif lumineux a diode electroluminescente organique

Publications (2)

Publication Number Publication Date
EP3141812A1 EP3141812A1 (de) 2017-03-15
EP3141812B1 true EP3141812B1 (de) 2019-11-13

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EP16187032.4A Active EP3141812B1 (de) 2015-09-08 2016-09-02 Leuchtvorrichtung mit organischer elektrolumineszenzdiode

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EP (1) EP3141812B1 (de)
FR (1) FR3040758B1 (de)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10836318B2 (en) * 2017-10-16 2020-11-17 SMR Patents S.à.r.l. Logo lamp assembly and method of using same

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102007021865B4 (de) * 2007-05-10 2012-10-31 Automotive Lighting Reutlingen Gmbh Beleuchtungseinrichtung für ein Fahrzeug
DE202011108565U1 (de) * 2011-12-02 2013-03-04 Bjb Gmbh & Co. Kg Lampe mit wenigstens einer organischen, lichtemmitierenden Diode
WO2014065169A1 (ja) * 2012-10-24 2014-05-01 コニカミノルタ株式会社 発光装置およびその製造方法
US9496522B2 (en) * 2013-12-13 2016-11-15 Universal Display Corporation OLED optically coupled to curved substrate
DE202013105487U1 (de) * 2013-12-03 2014-01-30 Odelo Gmbh Kraftfahrzeugleuchte
DE102013225796A1 (de) * 2013-12-12 2015-06-18 Magna Mirrors Holding Gmbh Leuchteneinheit für ein Kraftfahrzeug

Non-Patent Citations (1)

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

Also Published As

Publication number Publication date
FR3040758B1 (fr) 2019-10-04
FR3040758A1 (fr) 2017-03-10
EP3141812A1 (de) 2017-03-15

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