EP4222415A1 - Module lumineux pour véhicule automobile - Google Patents
Module lumineux pour véhicule automobileInfo
- Publication number
- EP4222415A1 EP4222415A1 EP21783533.9A EP21783533A EP4222415A1 EP 4222415 A1 EP4222415 A1 EP 4222415A1 EP 21783533 A EP21783533 A EP 21783533A EP 4222415 A1 EP4222415 A1 EP 4222415A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- substrate
- light module
- connector
- module according
- vehicle
- 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.)
- Pending
Links
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
- 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
- F21S43/13—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]
-
- 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
- F21S43/15—Strips of 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
- F21S45/00—Arrangements within vehicle lighting devices specially adapted for vehicle exteriors, for purposes other than emission or distribution of light
- F21S45/40—Cooling of lighting devices
Definitions
- the invention relates to the field of automotive lighting and signaling. More specifically, the invention relates to the field of screens integrated in light modules for lighting or light signaling of motor vehicles.
- this screen is desirable to integrate into a light module by giving it a floating appearance, that is to say whose edges, called floating, are devoid of any means of electrical connection and / or mechanical support which is visible and/or which extends beyond the surface of the substrate. It is however necessary to provide a means making it possible to selectively control each of the light sources of this screen.
- the subject of the invention is a light module for a motor vehicle signaling device, comprising:
- a substrate comprising an electronic circuit
- the imprint of the part of the connector fixed to the substrate is understood to mean a surface occupied on the substrate by the connector and on which components, in particular light sources, cannot be installed.
- a generally rectangular shape of the footprint is understood to mean any shape having a long dimension and a narrow dimension, which can be encompassed in a rectangle in which components, for example light sources, cannot be mounted because of the size of the connector.
- a narrow dimension and a long dimension is meant that the narrow dimension has a length less than that of the long dimension. It is understood that, for a generally rectangular shape, a long dimension is the longest side of the rectangle, and a narrow dimension is the shortest side of the rectangle. For example, on a typical connector, the long dimension can reach several centimeters, and the narrow dimension is between 3 and 8 mm.
- the substrate comprises an outer face facing the outside of the vehicle and an inner face facing the inside of the vehicle.
- the elementary light sources are arranged on the exterior face of the substrate so as to be visible from a usual point of view of an observer outside the vehicle.
- the term "usual point of view” means a point of view placed outside the vehicle when the latter is in use, and located at a height from the ground at least equivalent to that of the signaling device.
- a radius of curvature of the substrate is typically greater than 50 mm, and preferably between 90 and 500 mm.
- the same substrate can have several radii of curvature around parallel axes, or an evolving radius of curvature around parallel axes.
- the axis of curvature is understood as an axis to which the axes of curvature for a part of the substrate are parallel.
- a substrate can have several curved zones with different axes of curvature.
- the axis of curvature can be vertical, or horizontal, or oriented so as to suit aesthetic or mechanical integration constraints.
- the connector comprises an anisotropic conductive adhesive film, the connector being mechanically and electrically connected to the electronic circuit of the substrate by means of said anisotropic conductive adhesive film.
- the connector is thus an ACF type connector (from the Anglo-Saxon abbreviation Anisotropic Conductive Film).
- the substrate is made of ceramic.
- ceramic substrate is meant a substrate made of a material with a crystalline or partially crystalline or amorphous structure, such as a glass or an alumina, the body of which consists of essentially inorganic substances, and which is formed by a molten mass which solidifies on cooling, or which is formed and brought to maturity, at the same time or subsequently, by the action of heat and/or pressure.
- the ceramic substrate is an alumina (Al2O3) or aluminum nitride (AIN) substrate.
- the ceramic substrate is a glass substrate (for example based on borosilicate); such a substrate has good dielectric properties and has a low production cost.
- a support maintains the substrate in position in a device casing.
- the support is configured to hold the substrate in a convex shape.
- the substrate can be a flexible substrate and the rigidity of its shape is ensured by the support.
- the substrate has an inner face facing the interior of the vehicle, said inner face of the substrate being held against the support.
- the part of the support in contact with the substrate is concealed behind the substrate.
- the greater the contact surface between the support and the substrate the more it makes it possible to absorb the mechanical stresses applied to the substrate.
- the mechanical stresses on the substrate are reduced, which makes it possible to use substrates of the type having low mechanical strength, such as a substrate made from a thin layer of ceramic.
- the support holds only a peripheral part of the substrate, preferably a part located in the 30%, preferably the 20%, closest to the edges of the inner face of the substrate.
- the substrate has several edges and is held by one of said edges according to a cross section to the substrate and to the axis of curvature, the other edges being at least partly left floating, or even entirely left floating. .
- the module has a floating aspect.
- the substrate is only in contact with the support on a zone adjacent to the edge of the substrate, concealed from any usual point of view of an observer outside the vehicle.
- the module appears to be particularly thin. It is then understood that the curvature given to the edge of the substrate makes it possible to ensure the curvature of the entire substrate. Moreover, said curvature contributes to ensuring the rigidity of the part of the substrate left floating.
- the support holds the substrate by an upper edge.
- the edge left not free is more easily masked from any usual point of view of an observer outside the vehicle.
- the observer perceives that the module is floating, which corresponds to the objectives of the invention.
- the substrate is only in contact with the support over a zone concealed from any usual point of view of an observer outside the vehicle, except over a part which constitutes a thin border (this is that is to say a border with a thickness of less than 1 mm), arranged to mask and protect the edges of the substrate.
- a thin border this is that is to say a border with a thickness of less than 1 mm
- Said border can also comprise a folded part on the substrate, so that it participates in the positioning and/or the maintenance of the substrate on the support.
- the support comprises a heat dissipation member in contact with the substrate.
- said heat dissipation member is partly in contact with the inner face of the substrate.
- the organ of heat dissipation is preferably made of a material having a high transmission coefficient, such as a metal such as aluminum, copper, or a plastic comprising metal particles or a composite material offering optimized properties in terms of thermal conductivity, expansion thermal and mass, mechanical resistance to shocks and vibrations in particular.
- the weight the mass of such a heat dissipation member in contact with the substrate is not supported by the substrate, but by the support which ensures the maintenance of the substrate.
- the mechanical stresses on the substrate are reduced, which makes it possible to mount a heat dissipation member on substrates of the type having low mechanical strength, such as a substrate made of a thin thickness of ceramic.
- the support is adapted to be concealed from any usual point of view of an observer placed outside the vehicle. In this way, one can easily obtain a floating display.
- the connector establishes the connection between a control device and the substrate by means of a flexible printed circuit board.
- This type of connector makes it possible to circulate the quantity of data necessary for controlling a large number of light sources.
- the connector is able to receive an instruction to control the light sources and a control unit is arranged to selectively control each of the light sources according to said control instruction received by the connector.
- the light sources are arranged on the substrate in a matrix fashion and the control unit is arranged to address and control each of the light sources according to its position in said matrix.
- the control unit can be arranged to scan the matrix vertically by successively selecting each row of the matrix, in particular by applying a selection voltage successively to each of the rows; and, for each line selected during the scan, to simultaneously apply, depending on the control instruction, an activation or deactivation signal to each column of the matrix, so as to cause or prohibit the emission of light by the light source addressed by the selected row and this column.
- the number of tracks that are needed to addressing each of the light sources is thus equal to the sum of the columns and rows.
- the connector may include a flexible printed circuit board, the control unit being mounted directly on said flexible printed circuit board.
- This type of arrangement is also called CoF, from the English Chip on Flex. This type of arrangement makes it possible to free up space on the faces of the substrate so that the matrix arrangement of light sources can cover as large a portion as possible of the upper face of the substrate.
- control unit can be mounted on the interior face and/or the exterior face of the substrate, in particular by means of an anisotropic conductive adhesive film or, as a variant, by being incorporated in a bead matrix housing. , also called BGA (Ball Grid Array). This makes it possible, for example, to reduce the layout constraints of the connector. In addition, this makes it possible to increase a transmitted power, so that a brightness of the sources is improved.
- BGA Bit Grid Array
- control units and/or several connectors may be provided.
- control unit when the control unit is mechanically and electrically mounted on the flexible printed circuit board (CoF), the control unit is also held on the inner face of the substrate, or on the outer face of the substrate. , or, preferably, on the support.
- the control unit is kept glued to a part of the substrate devoid of components.
- the flexible printed circuit board of the connector has two faces. The control unit is mounted on one face of the flexible printed circuit board, and a part of the face of the flexible printed circuit board on which the control unit is not mounted is kept glued to the support.
- the control unit is mechanically and electrically mounted on the flexible printed circuit board (CoF)
- the support is adapted to be concealed from any usual point of view of an observer outside the vehicle, the control unit is then also concealed, which makes it possible to guarantee the aesthetics of the module.
- the connector is arranged on one face of the substrate which carries light sources.
- the connector is arranged on a zone of the substrate concealed from any usual point of view of an observer outside the vehicle.
- the connector is placed on a part of the module concealed behind other elements of the signaling device or of the vehicle from any usual point of view of an observer outside the vehicle.
- a zone of a transparent wall of the signaling device has opacified zones making it possible to conceal the connector at least from any usual point of view of an outside observer.
- the arrangement of elementary light sources covers more than 90% of one face of the substrate facing outwards.
- the elementary light sources are regularly arranged on a display part of the face of the substrate facing outwards, said display part having a surface greater than 90% of the total surface of said face. In this way, an impression of a floating module is reinforced for an outside observer.
- the substrate comprises an outer face oriented towards the outside of the vehicle, the connector being arranged on a zone of the outer face of the substrate hidden from any usual point of view of an observer placed at the exterior of the vehicle.
- other non-lighting components such as for example a control unit, can be located on said zone, in particular when their dimensions do not allow them to be integrated in the intervals between the light sources of the arrangement of light sources.
- the connector can be masked by elements of the signaling device, such as an opacified zone of a transparent wall or parts of a housing of the signaling device or other signaling modules, or elements of the vehicle. If desired, all components can then be arranged on the substrate can be arranged on the same face. In this case, a more economical substrate can be used for making the light module.
- the substrate is traversed by holes making it possible to establish an electrical connection and the connector is arranged on a face of the substrate devoid of elementary light sources. It is understood that this makes it possible to hide the connector on a face of the substrate that does not need to be exposed, for example an inner face; in this way, an aesthetic aspect of the module is improved.
- the substrate comprises floating edges devoid of any electrical connection and/or mechanical holding means which is visible from any usual point of view of an observer placed outside the vehicle or which extends to the -beyond the substrate, and a single edge comprising mechanical holding or connection means, in particular means extending beyond the surface of the substrate.
- This is made possible according to the teaching of one or more of the characteristics of the invention, in particular among the following: when non-luminous components, in particular the connector, are located close to the non-floating edge; when the substrate has holes allowing an electrical connection to be established and the connector is arranged on a face of the substrate devoid of elementary light sources, when a control unit is mounted on a printed circuit board forming part of the connector.
- Light module according to one of the preceding claims, characterized in that the substrate comprises only floating edges devoid of any means of electrical connection and / or mechanical maintenance which is visible from any usual point of view of an observer. placed outside the vehicle or which extends beyond the substrate, and a single edge comprising mechanical holding or connection means, in particular means extending beyond the surface of the substrate.
- each of the light sources comprises at least one light-emitting semiconductor chip whose dimensions are between 80 ⁇ m and 300 ⁇ m. Such a chip responds in particular to the name of miniled.
- each of the light sources comprises at least one light-emitting semiconductor chip whose dimensions are between 5 ⁇ m and 80 ⁇ m. Such a chip responds in particular to the name of microled.
- the light sources can be mounted, directly or indirectly, on the outer face of the ceramic substrate, in particular so that two neighboring light sources are separated by a maximum of 1 mm.
- the light module comprises a plurality of active control elements, each active control element being arranged to control one of the light sources with which it is associated and being arranged on the outer face and mounted on the electronic circuit of the substrate, at the level of one of the through holes, to be connected to a control unit or to a connector mounted on the electronic circuit of the substrate and arranged on the inner face of the substrate, said plurality of active control elements forming an active matrix and the control unit being arranged to control said active matrix according to said control instruction received by the connector.
- control unit is able to control each light source by addressing and controlling the associated control element.
- active control element is meant in particular the fact that each control element is arranged to actively maintain the on or off state of the associated light source during the scanning of the active matrix by the control unit.
- each light source is mounted and connected to the control element with which it is associated.
- each control element comprises a thin film transistor, also called TFT (Thin Film Transistor) on which the associated light source is mounted and connected.
- TFT Thin Film Transistor
- the electronic circuit of the substrate may comprise one or more thin connection layers, in particular with a thickness of less than 50 ⁇ m, incorporating a plurality of active control elements, each active control element being arranged to control the one of the light sources with which it is associated, and each light source is mounted and connected directly to the electronic circuit of the substrate, substantially in line with a control element of the thin connecting layers, to which it is connected.
- Each active control element may for example be of the integrated microcircuit type comprising at least one transistor and a memory. If necessary, the set of the plurality of light sources and the thin connection sub-layer or layers incorporating the plurality of active control elements form an active matrix.
- the light module comprises a plurality of active control elements, each active control element being arranged to control one or more of the light sources with which it is associated and being mounted directly on the electronic circuit of the substrate on the exterior face of the substrate, and each light source is mounted and connected directly to the electronic circuit of the substrate on the exterior face of the substrate, being connected to the associated active control element.
- the electronic circuit of the substrate may comprise one or more sub-layers.
- Each active control element may for example be of the integrated micro-circuit type comprising at least one transistor and a memory. If necessary, the set of the plurality of light sources and of the plurality of active control elements forms an active matrix.
- each light source is mounted directly on the electronic circuit of the substrate, the plurality of light sources forming a passive matrix and the control unit being arranged to control said passive matrix by depending on the control instruction received by the connector.
- the light module may comprise a plurality of devices for controlling the electrical power supply supplied to the light sources, the devices for controlling the electrical power supply being arranged on an inner face of the substrate and mounted on the electronic circuit of the substrate .
- each driver device may be disposed on the inner face of the ceramic substrate at a through hole, said driver device being arranged to drive the electrical power supplied to the light source mounted at said through hole.
- the light module comprises an opaque coating deposited on the outer face of the substrate.
- the opaque coating can be formed on an exterior face of the substrate, and be provided with openings formed at the level of the light sources.
- the opaque coating can be deposited before mounting the components on the outer face of the ceramic substrate, in particular by means of a mask.
- the opaque coating can be deposited after the assembly of said components.
- the opaque coating can have a dark color and a matte appearance. This coating makes it possible in particular to avoid the reflections of so-called parasitic light rays which would be emitted by the light sources towards the substrate and thus improves the contrast, which is desirable when the ambient luminosity is high.
- the inner face of the substrate is in thermal contact with a heat dissipation member made of a thermally conductive material, in particular an aluminum alloy or copper.
- a heat dissipation member made of a thermally conductive material, in particular an aluminum alloy or copper.
- Such a member may have fins or heat dissipation pins.
- the heat dissipation member can also include a thermal interface that ensures the transmission of heat between the inner face of the substrate and the heat dissipation member.
- such an interface is formed of a material having particular thermal conductivity properties, in particular a coefficient of thermal conductivity greater than 1 W/m/°C, capable of filling the gaps and the spaces between the inner face of the substrate and the heat dissipation member.
- this thermal interface is produced by an adhesive, thus ensuring the maintenance of the heat dissipation member. In this way, it is possible to completely maintain the light module by its wall.
- a support member held by the signaling device or directly by the vehicle maintains the heat dissipation member. This support member can also support electrical interfaces of the light module, such as a flexible printed circuit board and/or a control unit.
- the invention also relates to a light signaling device for a motor vehicle, comprising a light module according to the invention. If desired, the signaling device can be arranged in the rear light of the motor vehicle.
- FIG. 1 represents, schematically and partially, a view of a light module according to a first embodiment of the invention
- FIG. 2A represents, schematically and partially, a view of a light module according to a second embodiment of the invention, according to a section plane AA;
- FIG. 2B represents, schematically and partially, a view of the light module according to a second embodiment of the invention, according to a section plane BB;
- FIG. 2C represents, schematically and partially, a view of the light module according to a second embodiment of the invention, according to a sectional plane CC;
- FIG. 3A represents, schematically and partially, a view of a light module according to a third embodiment of the invention, according to a section plane AA;
- FIG. 3B represents, schematically and partially, a view of the light module according to a third embodiment of the invention, according to a section plane BB;
- FIG. 3C represents, schematically and partially, a view of the light module according to a third embodiment of the invention, according to a sectional plane CC;
- FIG. 3D represents, schematically and partially, a view of a light module according to a third embodiment of the invention from a point of view opposite to that of [Fig. 3C].
- FIG. 1 a partial view of a light module 1 according to a first embodiment of the invention.
- the light module 1 is part of a rear light of a motor vehicle. Only a substrate 2 is shown having a convex curvature from the point of view of an observer outside the vehicle and comprising an electronic circuit (not shown), a matrix arrangement of light sources 4 arranged on the electronic circuit of the substrate, and a connector 6 placed on the electronic circuit.
- the imprint of connector 6 on substrate 2 has a generally rectangular shape with a long side and a short side.
- the substrate has a changing radius of curvature around parallel axes.
- the axis of curvature is an axis XX to which the axes of curvature for part of the substrate are parallel.
- the long side is oriented along the axis of curvature XX of the substrate.
- FIG. 2A There is shown in [Fig. 2A], [Fig. 2B], and [Fig. 2C] a partial view of a light module 1 according to a second embodiment of the invention.
- the light module 1 is part of a rear light of a motor vehicle and comprises a substrate 2.
- Said substrate 2 is a flexible glass substrate, and has a convex curvature from a point of view of an observer outside the vehicle.
- the substrate 2 includes an electronic circuit that is not shown.
- a matrix arrangement of light sources 4 is arranged on the substrate and the light sources 4 are mounted on the electronic circuit.
- the substrate 2 has an outer face facing the outside of the vehicle and an inner face facing the inside of the vehicle.
- a connector 6 disposed on the inner face is mounted on the electronic circuit of the substrate.
- the connector comprises a flexible printed circuit board 61 and an anisotropic conductive adhesive 62 arranged to mechanically and electrically connect the printed circuit board 61 to the electronic circuit of the substrate.
- the imprint of connector 6 on substrate 2 has a generally rectangular shape with a long side and a short side. The long side is oriented along an axis of curvature XX of the substrate.
- the module 1 also comprises a substrate 3 made of glass.
- Substrate 3 is flexible. The substrate is held in position in the signaling device by a support 3 which also maintains the substrate in a convex shape. The means for fixing the substrate to the support are not shown.
- the module 1 also comprises a control unit 7 arranged to supply and control the light sources 4.
- Said control unit 7 is mounted mechanically and electrically on the flexible circuit board 61 .
- the unit control has several faces, and is also fixed by that of its faces on which the control unit is not mounted. In this way, the control unit is hidden from an observer outside the vehicle when it is in use.
- the module 1 comprises a support 3 provided with an aluminum heat dissipation member, comprising fins 81 for cooling.
- a malleable thermal conductor 82 provides thermal contact between substrate 2 and the heat dissipation member of support 3.
- Substrate 2 is glued to support 3 which ensures that it is held in position in the signaling device as well as the its curvature. In this way, the support 3 gives its rigidity to the substrate 2.
- the support 3 is made so that it is not visible to an outside observer located at least at the height of the signaling device when the vehicle is in use. Not shown elements of the signaling device mask the support from any usual point of view of an outside observer.
- the light module 1 is part of a rear light of a motor vehicle and comprises a substrate 2.
- Said substrate 2 is a rigid metal substrate, and has a convex curvature from the point of view of an observer outside the vehicle.
- the substrate 2 includes an electronic circuit, not shown.
- a matrix arrangement of light sources 4 is arranged on the substrate.
- the light sources 4 are mounted on the electronic circuit of the substrate 2.
- the substrate 2 is held in position in the signaling device by a support 3.
- the means for fixing the substrate to the support are not shown.
- the substrate 2 has an outer face facing the outside of the vehicle and an inner face facing the inside of the vehicle.
- a control unit 7 and a connector 6 are arranged on the exterior face of the substrate.
- the connector comprises a printed circuit board 61 and an anisotropic conductive adhesive 62 arranged to mechanically and electrically connect the printed circuit board 61 to the electronic circuit of the substrate.
- the connector footprint 6 on the substrate 2 has a generally rectangular shape with one side and one short side. The long side is oriented along an axis of curvature XX of the substrate.
- the support 3 is made in such a way that the substrate and elements of the signaling device or of the vehicle hide the support from any usual point of view of an outside observer, and is therefore not visible to this observer.
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Optics & Photonics (AREA)
- Non-Portable Lighting Devices Or Systems Thereof (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR2010014A FR3114634B1 (fr) | 2020-09-30 | 2020-09-30 | Module lumineux pour véhicule automobile |
| PCT/EP2021/077022 WO2022069672A1 (fr) | 2020-09-30 | 2021-09-30 | Module lumineux pour véhicule automobile |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| EP4222415A1 true EP4222415A1 (fr) | 2023-08-09 |
Family
ID=73498058
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP21783533.9A Pending EP4222415A1 (fr) | 2020-09-30 | 2021-09-30 | Module lumineux pour véhicule automobile |
Country Status (5)
| Country | Link |
|---|---|
| US (1) | US12044380B2 (fr) |
| EP (1) | EP4222415A1 (fr) |
| CN (1) | CN116529524A (fr) |
| FR (1) | FR3114634B1 (fr) |
| WO (1) | WO2022069672A1 (fr) |
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| WO2000074975A1 (fr) * | 1999-06-08 | 2000-12-14 | 911 Emergency Products, Inc. | Ensemble portant a diodes electroluminescentes pour automobile |
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| DE102018123884A1 (de) * | 2018-08-27 | 2020-02-27 | Osram Opto Semiconductors Gmbh | LED-Flächenlichtquelle |
| JP2021036575A (ja) * | 2018-12-17 | 2021-03-04 | 東芝ホクト電子株式会社 | 発光装置、接合部の保護方法、発光装置の製造方法、及び、車両用灯具 |
| KR20200109025A (ko) * | 2019-03-12 | 2020-09-22 | 엘지이노텍 주식회사 | 조명 모듈 및 이를 구비한 조명 장치 |
-
2020
- 2020-09-30 FR FR2010014A patent/FR3114634B1/fr active Active
-
2021
- 2021-09-30 US US18/247,039 patent/US12044380B2/en active Active
- 2021-09-30 WO PCT/EP2021/077022 patent/WO2022069672A1/fr not_active Ceased
- 2021-09-30 CN CN202180072443.XA patent/CN116529524A/zh active Pending
- 2021-09-30 EP EP21783533.9A patent/EP4222415A1/fr active Pending
Also Published As
| Publication number | Publication date |
|---|---|
| US12044380B2 (en) | 2024-07-23 |
| US20230366523A1 (en) | 2023-11-16 |
| FR3114634B1 (fr) | 2022-10-14 |
| FR3114634A1 (fr) | 2022-04-01 |
| WO2022069672A1 (fr) | 2022-04-07 |
| CN116529524A (zh) | 2023-08-01 |
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