• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
  • 引用文献
  • 法律状态
  • 优先权
    • 专利摘要:
    A tactile detection device comprises a touch interface (1) of composite material comprising a lignocellulosic material and a resin, the lignocellulosic material being impregnated with the resin, the resin fraction being between 30% and 80% by weight. relative to the total mass of composite material. The impregnated resin makes the touch interface stable regardless of the temperature and humidity conditions for use both outdoors and indoors. Use of the touch sensor device for a touch screen.
    公开号:FR3077895A1
    申请号:FR1851089
    申请日:2018-02-09
    公开日:2019-08-16
    发明作者:Raphaele Thevenin；Timothee Boitouzet
    申请人:Sas Woodoo；
    IPC主号:
    专利说明:

    The present invention relates to a touch detection device comprising a touch interface, a touch screen comprising the touch detection device and a display device, as well as a motor vehicle comprising the touch detection device.
    In general, the present invention relates to the field of tactile detection devices.
    The present invention finds particular application, without limitation, in the field of luxury goods, electronic devices (mobile phones, tablets, hi-fi, televisions, drones), watchmaking, furniture, and more particularly in the field of motor vehicles to equip the passenger compartment. In the passenger compartment, a touch-sensitive detection device can be used to carry out the control zones located at the dashboard, vehicle doors, steering wheel or central console between the front seats of a motor vehicle.
    STATE OF THE ART
    A known solution is a tactile detection device with a tactile interface made of natural wood described, in particular, in patent application WO 2016/138901.
    However, the use of natural wood as a touch interface has many drawbacks.
    Wood is particularly sensitive to variations in temperature and humidity. Air in wood cavities can charge moisture and change the electrical conductivity of wood, and cellulose can charge moisture and change the dimensional characteristics of wood. Wood can therefore only be used in a limited number of environments.
    Indeed, the wood deteriorates when it is used in a humid environment and / or when the temperature variations are important. The wood is also susceptible to insect attack and the proliferation of fungi.
    The dielectric properties of wood are disturbed by humidity. Thus, the wooden touch interface can only be used indoors or in an environment protected from temperature and humidity variations.
    The present invention aims to provide a tactile detection device with a tactile interface less sensitive to variations in temperature and humidity for use both indoors and outdoors.
    To this end, the present invention relates, according to a first aspect, to a tactile detection device comprising a tactile interface made of composite material comprising a resin and a lignocellulosic material, the lignocellulosic material being impregnated with the resin, the fraction of resin being between 30% and 80% by mass relative to the total mass of the composite material.
    Such a solution has many advantages and in particular makes it possible to make a tactile interface made of lignocellulosic material less sensitive to variations in temperature and humidity thanks to the impregnation of a resin in the lignocellulosic material.
    In particular, the resin at least partially replaces the air present in the lignocellulosic material. In other words, the resin fills the cavities present in the lignocellulosic material. We are talking about an impregnation at the heart of the lignocellulosic material. The resin improves the stability of the dielectric properties of the touch interface. Thus, the touch interface can be suitable for both outdoor and indoor use.
    In another advantageous embodiment, the touch interface has a light transmission coefficient of at least 5%.
    The light transmission coefficient translates the amount of light passing through a body letting the light pass. In other words, the light transmission coefficient translates the translucent or even transparent character of the tactile interface. Here, the light transmission coefficient of at least 5% means that the touch interface is at least translucent. Thus, the user sees through the touch interface and can interact with commands displayed under the touch detection device.
    In another advantageous embodiment, the resin has a refractive index substantially equal to that of the lignocellulosic material.
    When the refractive indices of the resin and of the lignocellulosic material are close, that is to say identical or almost identical, the light passes through the tactile interface while being little or not deflected. In other words, the touch interface comprising resin and lignocellulosic material is all the more translucent, even transparent as the refractive indices are close.
    Advantageously, the refractive index of the resin can be chosen in a range between 1.35 and 1.70.
    In an advantageous embodiment, the lignocellulosic material is wood comprising lignin and a network of cellulose, and hemicellulose.
    In other words, the lignocellulosic material can be wood in which the network of cellulose and hemicellulose is preserved, even after treatment, and in which a more or less significant proportion of lignin is preserved.
    Wood has a specific appearance and special mechanical properties. Thus, the touch interface can preserve the mechanical properties of the wood as well as its specific appearance.
    For example, the lignocellulosic material of the touch interface is a delignified wood. The fraction of lignin removed is between 40% and 90% by weight of the lignin present in the wood.
    A tactile interface having variable mechanical, conductive and translucent properties can be obtained by varying in particular the fraction of lignin withdrawn. Depending on the application chosen, flexibility, conductivity and translucency properties may be favored for the touch interface.
    In practice, the lignocellulosic material is a longitudinal section or a cross section of a wooden trunk.
    Depending on the chosen cut, the conductivity properties and the visual appearance of the touch interface can be defined.
    In another advantageous embodiment, the resin is hydrophobic.
    The hydrophobic resin has little or no interaction with water. In other words, the resin absorbs little water. Thus, the composite material forming the touch interface is more stable against humidity while retaining its mechanical and dielectric properties.
    In another advantageous embodiment, the touch interface has a thickness of between 0.4mm and 30mm.
    The specific thickness of the touch interface provides a touch interface with specific mechanical characteristics. Thus, the touch interface can be more or less flexible and / or more or less mechanically resistant.
    In another advantageous embodiment, the resin comprises electrically conductive particles.
    For a given touch interface thickness, the electrically conductive particles added to the resin increase the conductivity of the touch interface. Thus, it is possible to increase the thickness of the touch interface while retaining touch detection properties.
    According to a second aspect, the invention relates to a touch screen. The touch screen comprises a display device and a touch detection device, the touch interface having a light transmission coefficient of at least 5%.
    According to a third aspect, the invention relates to a motor vehicle. The motor vehicle comprises a touch detection device and / or a touch screen according to the invention.
    BRIEF DESCRIPTION OF THE DRAWINGS
    Other features and advantages of the invention will become apparent in the description below.
    In the appended drawings, given by way of nonlimiting examples:
    - Figure 1a is a schematic perspective view of a touch interface of a touch detection device according to an embodiment of the invention;
    - Figure 1b is a schematic view of the touch interface shown in Figure 1a along the section plane A-A;
    - Figure 2 is a perspective view of a wooden trunk having several cutting planes;
    - Figure 3 is an exploded schematic view illustrating the components of an example of touch screen according to an embodiment of the invention; and
    - Figure 4 is a schematic representation of an example of a motor vehicle interior according to an embodiment of the invention.
    FIG. 1a represents a schematic perspective view of a touch interface of a touch detection device.
    Here, the touch interface 1 has the shape of a hexahedron. However, the tactile interface 1 can have other particular shapes, such as a shape based on a triangle, a circle, a square or a polygon. Here, the touch interface 1 typically has three dimensions: a length L, a width I and a thickness e.
    In an advantageous embodiment, the thickness e is the smallest dimension. The thickness e is between 0.4 mm and 30mm.
    For a thickness e between 0.4mm and 2mm, the touch interface can be flexible or be made flexible. For a thickness e of between mm and 30 mm, the touch interface 1 has greater rigidity.
    Thus, a specific thickness e gives the tactile interface 1 specific mechanical properties.
    In general, the touch interface 1 is formed from a composite material. The composite material is a lignocellulosic material impregnated with a resin.
    A method of impregnating the composite material is known to a person skilled in the art and is described in particular in document WO 2017/098149. The process described in the cited document mainly corresponds to a delignification step, called soaking, followed by an impregnation step called filling with a filling compound.
    Of course, other modes of impregnation can be used to make the composite material.
    The resin fraction is between 30 and 80% by mass relative to the total mass of composite material.
    The resin is typically a thermosetting polymer or a thermoplastic polymer, as described in document WO 2017/098149, the content of which is incorporated by reference into the present description. The resin can also be an elastomer.
    Advantageously, the resin is a polymer or co-polymer, or a monomer associated with a radical polymerization initiator in the case of a thermoplastic, or of a crosslinker in the case of a thermosetting.
    Advantageously, the thermoplastic polymers or co-polymers will be chosen from the following families: the family of fluoropolymers, polystyrenes, polycarbonates or polyamides, or any other family known to those skilled in the art.
    Advantageously, the thermoplastic monomers will be chosen from petro-sourced monomers of metacrylate type (ethyl, methyl, butyl), or bio-based monomers, associated with initiators of the azoisobutyronitrile type, peroxides, or any initiator known from the skilled person.
    Advantageously, the thermosetting monomers will be chosen from epoxy-based or phenolic-based monomers, or any other resin known to those skilled in the art, or bio-based monomers, combined with suitable crosslinking agents.
    Resin has the advantage of making the composite material, formed from a lignocellulosic material, stable whatever the temperature and humidity conditions. Thus, the touch interface can be suitable for both outdoor and indoor use.
    The resin can be hydrophobic. Thus, the composite material reacts even less with the humidity of the environment.
    Thus, the touch interface has more stable dielectric characteristics.
    In an advantageous embodiment, the lignocellulosic material is wood comprising lignin and a network of cellulose and hemicellulose.
    Thus, the touch interface 1 has both a visual close to natural wood and mechanical characteristics at least similar to those provided by wood.
    More precisely, still with reference to document WO 2017/098149, comparative measurements of bending, axial traction and axial compression of a sample of fir essence treated according to the method of impregnation of the composite material cited in the document and of a sample of natural fir essence were made.
    The bending measurements show that the sample of treated Christmas tree essence has a bending effort increased by 200% and a more gradual break than the sample of natural Christmas tree essence. The axial compression measurements show that the sample of treated fir essence has a resistance to axial compression stress increased by 170% and a more gradual rupture than the sample of natural fir essence. The axial traction measurements show that the sample of treated fir essence has a plastic deformation of a value substantially identical to that of the sample of natural fir essence.
    Thus, in an advantageous embodiment, the lignocellulosic material obtained by the method described in the document WO 2017/098149, makes it possible to obtain mechanical characteristics greater than or at least equivalent to those of a lignocellulosic material of the untreated wood type. .
    In addition, in an advantageous embodiment, the wood is chosen from specific species. Indeed, depending on the species chosen, the wood has a particular appearance and mechanical characteristics. Thus, the touch interface also has a particular aspect and mechanical characteristics.
    For the record and with reference to FIG. 2, a wooden trunk 2 can be cut according to different plans.
    When the wooden trunk 2 is cut perpendicular to the direction formed by the wooden trunk 2, we speak of a cross section CT.
    When the wooden trunk 2 is cut in a direction parallel to the direction formed by the wooden trunk 2, we speak of a longitudinal cut. There are two types of longitudinal cuts: the radial longitudinal cut CLR and the tangential longitudinal cut CLT.
    A distinction is made between a radial longitudinal section CLR which passes through the central longitudinal axis ZZ ’of the wooden trunk and a tangential longitudinal section CLT which does not pass through the central longitudinal axis ZZ’ of the wooden trunk.
    In an advantageous embodiment, the lignocellulosic material used to produce the composite material of the touch interface comes from a longitudinal section or a cross section of a wooden trunk.
    Thus, the lignocellulosic material is a wood with generally homogeneous mechanical properties.
    In an advantageous embodiment, the thickness of the lignocellulosic material can correspond to standard cutting values in the wood industry in Europe, for example 0.6mm, 0.9mm, 1.2mm, 2.5mm, 6mm, 18mm or 27mm.
    The touch interface 1 is made from such a cut of wood, of standard thickness for example. However, the thickness e of the touch interface may be slightly different from that of the lignocellulosic material used, following its impregnation with a resin.
    Figure 1b shows a schematic view of the touch interface 1 on which a light beam arrives. The touch interface is chosen here capable of allowing at least a certain percentage of the incident light to pass. Thus, when an incident light beam F1 comes into contact with an upper face 11 of the touch interface 1, the light beam is deflected. A refracted light beam FR and an absorbed light beam FA are formed. When the absorbed light beam FA reaches the lower face 12 of the touch interface 1, a transmitted light beam FT is formed. The absorbed light beam FA can again be refracted on the lower face 12 of the touch interface 1.
    The light transmission coefficient corresponds to the amount of light passing through the tactile interface, i.e. to the light beam passing through FT. More precisely, the measurement is carried out by comparison between the value of the ambient lighting and the value of the light transmission flux. The measurements are made in lux.
    A body is considered to be translucent when the light transmission coefficient is between 5% and 90%. A body is considered to be transparent when the light transmission coefficient is greater than 90%. Note that these values are averages.
    For example, in the case of a tactile interface 1 obtained from delignified wood, the coefficient of light transmission cannot be the same in all directions. Indeed, depending on the areas of the touchscreen interface 1, the wood is more or less delignified and lets the light pass more or less well.
    For the protocol for measuring the light transmission coefficient, see, for example, document WO 2017/098149.
    Furthermore, still with reference to document WO 2017/098149, depending on the lignocellulosic material chosen, the tactile interface 1 can have a very variable optical rendering.
    Indeed, in the case where the lignocellulosic material is wood, the network of cellulose and hemicellulose is characteristic of each species. Thus, the touch interface 1 comprising lignocellulosic material can be more or less translucent, even transparent, with different hues and geometries.
    For example, still in the case of a wood-type lignocellulosic material, depending on the species, the areas of summer wood and spring wood may not have the same nature or be indistinguishable. The same goes for sapwood and heartwood for certain species.
    In the case of a cross section, it is thus possible, for certain woods, in particular those presenting annual growth rings (alternating summer wood and spring wood), that one of the parts, often the wood be less quick to undergo the treatment, for example the soaking step, thus leaving more or less translucent or transparent or even opaque areas appear after treatment.
    It is also possible that the reactivity of the structure during the filling step is substantially uniform, making the material substantially uniformly translucent or transparent.
    In other words, in the case of a wood-type lignocellulosic material, the choice of essence has an influence on the optical characteristics of the lignocellulosic material.
    Thus, a relevant choice of essence and cut makes it possible to optimize the translucent or transparent character of the tactile interface 1.
    In an advantageous embodiment, the resin is chosen to obtain a tactile interface 1 having a coefficient of light transmission of at least 5%.
    A light transmission coefficient of at least 5% allows the user to see through the touch interface 1.
    In an advantageous embodiment, the resin is chosen with a refractive index substantially identical to that of the lignocellulosic material to be impregnated. The resin can be chosen with a refractive index between 1.35 and 1.70.
    In other words, the resin is chosen such that it has the same optical density as that of cellulose.
    Indeed, the lignocellulosic material is mainly composed of cellulose and hemicellulose has an optical density close to that of cellulose. Thus, to obtain a translucent or even transparent lignocellulosic material, the resin will be chosen with the same optical density as that of cellulose.
    More precisely, still with reference to document WO 2017/098149, the refractive index of the polymer thus obtained is typically in the range from 1.35 to 1.70 and is often taken around 1.47, 1.53, 1.56 or 1.59, with a possible variation around these values of the order of 10%.
    It can also be, in a different embodiment, typically included in a range from 1.40 to 1.60, for example around 1.47.
    Thus, a relevant choice of resin makes it possible to optimize the translucent or transparent character of the touch interface 1.
    In an advantageous embodiment, the resin is mixed with electrically conductive particles in particular in order to improve the conductive properties of the tactile interface 1.
    In other words, for the same thickness, a touch interface 1 comprising a doped resin has significantly lower electrical resistivity properties compared to a touch interface 1 comprising an undoped resin.
    Thus, a touch interface 1 comprising a doped resin can have a greater thickness while retaining resistivity properties adapted to touch detection.
    Typically, the electrically conductive particles are indium tin oxide, indium oxide, or graphite particles.
    Of course, other electrically conductive particles can be mixed with the resin.
    In other words, the resin is doped with electrically conductive particles and impregnated in the structure of the lignocellulosic material.
    In the case of a wood-type lignocellulosic material having a porosity, the doped resin is inserted into the cavities of the wood.
    Thus, the touch interface 1 has better electrical conductivity performance.
    Referring to Figure 3, a schematic view of a touch screen 3, according to an embodiment of the invention, is shown.
    The tactile detection technology represented is of the capacitive technology type. However, any other touch detection technology can be used very well. Resistive technology, surface wave technology or even infrared technology can be used with the touch interface 1.
    These different types of technology and their means of implementation are well known to those skilled in the art and do not need to be developed here.
    The touch screen 3 comprises a touch detection device 4, a lower face of the touch detection device 4 being in contact with a display device 5.
    For example, the display device 5 is a Foled ("Flexible Oled": Oled flexible).
    This type of display device 5 is well suited to cooperate with a touch interface 1 as described above, in particular when the touch interface 1 has flexibility properties.
    Of course, the display device 5 may very well be a display device of the Oled type or of the LCD type.
    The touch detection device 4 comprises a touch interface 1, as described above. The touch interface 1 is in this embodiment in contact on its lower face 12 with a first conductive layer C1. The first conductive layer C1 is in contact on its underside with an adhesive layer A1. The adhesive layer A1 is in contact on its underside with a second conductive layer C2. The second conductive layer C2 is complementary to the first conductive layer C1.
    The four layers 1, C1, A1, C2 are stacked and placed on the display device 5.
    In an alternative embodiment, an additional adhesive layer A2 is placed between the lower face 12 of the touch interface 1 and the upper face of the first conductive layer C1. The additional adhesive layer A2 makes it possible to maintain the touch interface 1 to the rest of the touch detection device 4. Other means for fixing the touch interface 1, such as a support frame, can be used.
    It will be noted that the display device 5 includes lighting means making it possible to display different elements on the touch screen 3.
    Thus, in an advantageous embodiment, even when the touch interface 1 has a low light transmission coefficient, for example between 5% and 30%, it is possible for the user to see the elements displayed on the touch screen 3 and interact with these elements.
    In general, the touch interface 1, described above, can be used in any touch detection device 4 and touch screen 3 well known to those skilled in the art.
    With reference to FIG. 4, examples of the use of such a tactile detection device 4 and of a tactile screen 3 are shown in a passenger compartment of a motor vehicle.
    In one embodiment, a touch detection device 4 and / or a touch screen 3 is integrated into the center console 41 between the front seats of a motor vehicle. Similarly, a touch detection device 4 and / or a touch screen 3 is integrated at the steering wheel 42 or at one of the doors 43 of the motor vehicle.
    Thus, the user of the vehicle, driver or passenger, can interact with the controls of the vehicle thanks to a multimedia assembly integrated in the central console 41.
    In the exemplary embodiment presented in FIG. 4, the multimedia assembly integrated in the central console 41 comprises two touch detection devices 4 and a touch screen 3.
    In an advantageous embodiment, the multimedia assembly comprises only one or more touch screens 3. The multimedia assembly comprises a uniform face and without visible demarcation for the user when the lighting means of the touch screen do not operate .
    In other words, the touch screen 3 is not visible to the user when the lighting means are not working.
    Still with reference to the embodiment shown in FIG. 4, each tactile detection device 4 comprises tactile parts and non-tactile parts.
    More specifically, for a tactile detection device 4, the tactile parts correspond to the parts of the tactile interface 1 in contact with a tactile detection technology. These are, for example, control keys. The non-tactile parts are the parts of the tactile interface 1, the lower face 12 of which is not in contact with a tactile detection technology. These are, for example, spaces between the control keys.
    Of course, the invention is not limited to the embodiments described above. The present invention can be used in a wide variety of uses for luxury goods (such as watch straps), form (or design) elements or for consumer electronics elements (such as telephones, digital tablets, televisions).
    The present invention can also be used for elements linked to mobility such as automobile interior elements (dashboards, door elements), in the nautical field (such as sea scooters, boats, elements of interiors of yachts or jets) or in the aeronautical field (such as drones)
    The present invention can also be used for sports items (such as skis), consumer items or products (such as glasses or telephone covers) and items for construction.
    The present invention can also be used in the field of office automation or furniture, such as an office table with a touch screen or a door with touch detection devices making it possible to interact with the user.
    权利要求:
    Claims (11)
    [1" id="c-fr-0001]
    1. Tactile detection device, characterized in that it comprises a touch interface (1) made of composite material comprising a lignocellulosic material and a resin, said lignocellulosic material being impregnated with said resin, the fraction of resin being between 30 % and 80% by mass relative to the total mass of composite material.
    [2" id="c-fr-0002]
    2. Tactile detection device according to claim 1, characterized in that said touch interface (1) has a light transmission coefficient of at least 5%.
    [3" id="c-fr-0003]
    3. Tactile detection device according to one of claims 1 or 2, characterized in that said resin has a refractive index substantially equal to that of said lignocellulosic material.
    [4" id="c-fr-0004]
    4. Tactile detection device according to one of claims 1 to 3, characterized in that said resin has a refractive index between 1.35 and 1.70.
    [5" id="c-fr-0005]
    5. Tactile detection device according to one of claims 1 to 4, characterized in that said lignocellulosic material is wood comprising lignin and a network of cellulose and hemicellulose.
    [6" id="c-fr-0006]
    6. Tactile detection device according to claim 5, characterized in that said wood is delignified, the fraction of lignin removed being between 40% and 90% by weight of the lignin present in said wood.
    [7" id="c-fr-0007]
    7. Tactile detection device according to one of claims 1 to 6, characterized in that said resin is hydrophobic.
    [8" id="c-fr-0008]
    8. Tactile detection device according to one of claims 1 to 7, characterized in that said touch interface (1) has a thickness (e) of between 0.4mm and 30mm.
    [9" id="c-fr-0009]
    9. Tactile detection device according to one of claims 1 to 8, characterized in that said resin comprises electrically conductive particles.
    [10" id="c-fr-0010]
    10. Touch screen, characterized in that it comprises a display device (5) and a touch detection device (4) according to one of claims 1 to 9, said touch interface (1) having a coefficient of light transmission at least equal to 5%.
    [11" id="c-fr-0011]
    11. Motor vehicle, characterized in that it comprises a touch detection device (4) according to one of claims 1 to 9 and / or a touch screen (3) according to claim 10.
    类似技术:
    公开号 | 公开日 | 专利标题
    FR3077895A1|2019-08-16|TOUCH DETECTION DEVICE WITH TOUCH INTERFACE OF COMPOSITE MATERIAL
    FR2738772A1|1997-03-21|SHEET GLAZING OF ACOUSTIC INSULATION
    EP0844075B9|2003-01-08|Use of a laminated glazing to dampen solid-transmitted vibrations in a vehicle
    EP2748812B1|2020-08-19|Soundproofing assembly, in particular for a motor vehicle
    CA1284531C|1991-05-28|Increased sensitivity piezoelectric hydrophones
    EP2608958B1|2018-03-14|Process for the selection of an interlayer for vibro-acoustical dampening, interlayer and glazing comprising the same
    EP2073108A1|2009-06-24|Screen with capacitive tactile areas
    CA2271087C|2003-10-14|Telecommunication cable with optical fibers
    WO2010133790A1|2010-11-25|Method for selecting a separator for vibroacoustic damping, separator for a vibroacoustic damping, and glass panel including such a separator
    FR2888394A1|2007-01-12|CAPACITIVE DEVICE WITH OPTIMIZED CAPACITIVE VOLUME
    FR2821349A1|2002-08-30|TRANSPARENT SUBSTRATE COMPRISING METAL ELEMENTS AND USE OF SUCH SUBSTRATE
    US20140185155A1|2014-07-03|Electromagnetic-wave transmitting cover for vehicle
    EP1074863B1|2015-03-04|Bragg reflection optical device and methods of making the same
    EP2399185B1|2012-12-19|Multipoint sensor
    FR2690379A1|1993-10-29|Sandwich sheet.
    FR2944990A1|2010-11-05|SHEET WITH PELABLE SHEETS OF DIFFERENT THICKNESSES
    WO2012120225A1|2012-09-13|Method for the production of a transparent film, in particular for a transparent array-type tactile sensor
    FR2689654A1|1993-10-08|Composite plastic spectacle lens - has front and rear lenses of di:ethylene] glycol bis:allyl:carbonate] polymer and polycarbonate or polyurethane resin respectively
    FR3107013A1|2021-08-13|Decoration part providing a human-machine interface function comprising at least one capacitive force sensor, method of manufacturing such a decoration part
    FR2548134A1|1985-01-04|Stop device of the laminated type
    WO2021130295A1|2021-07-01|Radome for motor vehicle comprising a decorative pattern
    FR3081389A1|2019-11-29|CONTROL DEVICE FOR VEHICLE AND METHOD FOR PROVIDING A CONTROL DEVICE
    FR2785221A1|2000-05-05|Reflector for use with vehicle signal indicators has spherical transparent or translucent dispersion elements within transparent or translucent medium of lower refractive index
    FR3080777A1|2019-11-08|MOTORIZED SKATE BOARD MANUFACTURING METHOD WITH INTEGRATED ELECTRONICS
    FR3076259A1|2019-07-05|INTERFACE FOR MOTOR VEHICLE AND CONTROL METHOD
    同族专利:
    公开号 | 公开日
    WO2019155159A1|2019-08-15|
    KR20200120630A|2020-10-21|
    CN111699462A|2020-09-22|
    US20210019033A1|2021-01-21|
    JP2021513180A|2021-05-20|
    MA51748A|2021-05-19|
    FR3077895B1|2020-02-28|
    EP3750038A1|2020-12-16|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    EP3047656A1|2013-12-02|2016-07-27|Koss Corporation|Wooden or other dielectric capacitive touch interface and loudspeaker having same|
    WO2017098149A1|2015-12-07|2017-06-15|Boitouzet Timothée|Process for partial delignification and filling of a lignocellulosic material, and composite structure able to be obtained by this process|
    DK3266223T3|2015-03-04|2019-08-12|Bang & Olufsen As|Panel with two-handed user interface for a multi-room media player|FR3044577B1|2015-12-07|2017-12-22|Timothee Boitouzet|METHOD FOR PARTIAL DELIGNIFICATION AND FILLING OF A LIGNOCELLULOSIC MATERIAL, AND STRUCTURE OF COMPOSITE MATERIAL OBTAINED BY THIS PROCESS|
    FR3112449A1|2020-07-08|2022-01-14|Sas Woodoo|Method for manufacturing an electrically conductive device in lignocellulosic material|
    法律状态:
    2018-12-19| PLFP| Fee payment|Year of fee payment: 2 |
    2019-08-16| PLSC| Publication of the preliminary search report|Effective date: 20190816 |
    2019-12-20| PLFP| Fee payment|Year of fee payment: 3 |
    2021-02-22| PLFP| Fee payment|Year of fee payment: 4 |
    2022-02-07| PLFP| Fee payment|Year of fee payment: 5 |
    优先权:
    申请号 | 申请日 | 专利标题
    FR1851089|2018-02-09|
    FR1851089A|FR3077895B1|2018-02-09|2018-02-09|TACTILE DETECTION DEVICE WITH TACTILE INTERFACE IN COMPOSITE MATERIAL|FR1851089A| FR3077895B1|2018-02-09|2018-02-09|TACTILE DETECTION DEVICE WITH TACTILE INTERFACE IN COMPOSITE MATERIAL|
    MA051748A| MA51748A|2018-02-09|2019-02-06|TOUCH DETECTION DEVICE WITH TOUCH INTERFACE IN COMPOSITE MATERIAL|
    CN201980012426.XA| CN111699462A|2018-02-09|2019-02-06|Touch detection device with composite touch interface|
    EP19710034.0A| EP3750038A1|2018-02-09|2019-02-06|Touch detection device with touch interface made of composite material|
    KR1020207022911A| KR20200120630A|2018-02-09|2019-02-06|Touch detection device with touch interface made of composite material|
    PCT/FR2019/050262| WO2019155159A1|2018-02-09|2019-02-06|Touch detection device with touch interface made of composite material|
    JP2020565020A| JP2021513180A|2018-02-09|2019-02-06|Touch detection device with composite touch interface|
    US16/944,706| US20210019033A1|2018-02-09|2020-07-31|Touch detection device with touch interface made of composite material|
    [返回顶部]