EP3069200A1 - Electromechanical or digital watch including a dial and method for manufacturing such a dial - Google Patents

Electromechanical or digital watch including a dial and method for manufacturing such a dial

Info

Publication number
EP3069200A1
EP3069200A1 EP14755633.6A EP14755633A EP3069200A1 EP 3069200 A1 EP3069200 A1 EP 3069200A1 EP 14755633 A EP14755633 A EP 14755633A EP 3069200 A1 EP3069200 A1 EP 3069200A1
Authority
EP
European Patent Office
Prior art keywords
dial
watch
conductive tracks
electromechanical
flange
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.)
Granted
Application number
EP14755633.6A
Other languages
German (de)
French (fr)
Other versions
EP3069200B1 (en
Inventor
Emmanuel Fleury
Jean Laconte
Pascal Lagorgette
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.)
ETA SA Manufacture Horlogere Suisse
Original Assignee
ETA SA Manufacture Horlogere Suisse
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 ETA SA Manufacture Horlogere Suisse filed Critical ETA SA Manufacture Horlogere Suisse
Priority to EP14755633.6A priority Critical patent/EP3069200B1/en
Publication of EP3069200A1 publication Critical patent/EP3069200A1/en
Application granted granted Critical
Publication of EP3069200B1 publication Critical patent/EP3069200B1/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • G—PHYSICS
    • G04—HOROLOGY
    • G04G—ELECTRONIC TIME-PIECES
    • G04G17/00—Structural details; Housings
    • G04G17/02—Component assemblies
    • G04G17/06—Electric connectors, e.g. conductive elastomers
    • G—PHYSICS
    • G04—HOROLOGY
    • G04G—ELECTRONIC TIME-PIECES
    • G04G17/00—Structural details; Housings
    • G04G17/02—Component assemblies
    • G04G17/04—Mounting of electronic components
    • G04G17/045—Mounting of the display
    • G—PHYSICS
    • G04—HOROLOGY
    • G04G—ELECTRONIC TIME-PIECES
    • G04G21/00—Input or output devices integrated in time-pieces
    • G04G21/08—Touch switches specially adapted for time-pieces

Definitions

  • Electromechanical or digital timepiece including a clock and method of manufacturing such a clock
  • the present invention relates to a watch comprising a dial. More specifically, the present invention relates to an electromechanical or digital watch comprising at least one electronic device arranged in the watch case.
  • electromechanical watch means a watch comprising at least one indicator of a time value or of a magnitude unrelated to time driven by an electric motor.
  • digital watch means a watch comprising at least one digital display device of a time magnitude or of a magnitude unrelated to time.
  • dial means an indicator organ which carries various indications, hourly or not related to time.
  • Electromechanical watches as well as digital watches, comprise a plurality of discrete or integrated electronic components necessary for their operation. These electronic components are typically mounted on printed circuit boards housed in the watch cases, below the surface of the dial and at a distance therefrom.
  • the present invention aims to remedy these disadvantages as well as others by providing a dial for a watch electromechanical or digital enabling advantageously to overcome, at least partially, printed circuit boards.
  • the present invention relates to an electromechanical or digital watch, the watch comprising a caseband which delimits with an ice a watch case, the ice comprising an upper face oriented on the side of a user, and a lower face oriented on the side. of the watch case, the watch also comprising a dial made of a non-electrically conductive material, the dial comprising a lower surface and an upper surface situated on the side of an observer, the watch being characterized in that tracks electrically conductive connectors for connecting one or more electronic components are structured on at least one of the lower or upper surfaces of the dial.
  • the dial is made of glass, a plastic material or even a ceramic material.
  • the present invention provides a watch whose dial is made of a non-electrically conductive material, so that at least one of the lower and upper surfaces of this dial can be used for structuring electrically conductive tracks for the electrical connection of at least one discrete or integrated electronic component. It is thus possible to overcome or, at least, to limit the surface of the printed circuit boards necessary for mounting the electronic components of the watch, which makes it possible to limit the costs in terms of the number of printed circuit boards used. and manufacturing time, as well as reduce the clutter of the watch movement housed in the watch case.
  • FIG. 1 is a sectional view of a watch equipped with a dial according to the invention.
  • FIG. 2 is a sectional view of a watch equipped with a dial according to an alternative embodiment of the invention.
  • the present invention proceeds from the general inventive idea of using one and / or the other of the upper and lower surfaces of a watch dial made of a non-conductive material of electricity to structure conductive tracks allowing to connect discrete or integrated electronic components necessary for the operation of the watch. In this way, it is possible to eliminate, or at least limit the surface of the printed circuit boards, which limits the time and manufacturing costs, and reduce the size of the watch movement housed in the circuit. watch box.
  • the present invention will be described in connection with a timepiece comprising an ice on the lower surface of which are structured tactile keys. It goes without saying that this example is given for purely illustrative and not limiting purposes only, and that a watch face according to the invention can be used with any type of electronic device integrated in a watch case.
  • FIG. 1 attached to this patent application is a sectional view of a watch equipped with a dial according to the invention.
  • this watch comprises a middle part 2 which delimits with a mirror 4 a watch box 6.
  • the ice 4 comprises an upper face 8 directed towards the side of a user of the watch 1, and a lower face 10 directed towards the side of the watch case 6.
  • an electronic device On the lower face 1 0 of the ice 4 is arranged an electronic device .
  • the electronic device can be of any type. he may be a digital display device, for example liquid crystal, or (see single figure) first conductive tracks 12 made of a transparent electrically conductive material such as tin oxide indium, better known under the name Anglo-Saxon Indium-Tin Oxide or ITO. These first conductive tracks 1 2 have the function of materializing on the surface of the glass 4 tactile keys sensitive to variations in capacity and allowing the user, by applying a finger 14, to introduce instructions in an electronic circuit 1 6 management of touch keys.
  • This electronic management circuit 16 is mounted on a lower surface of a dial 18 according to the invention housed in the watch case 6, under and away from the first conductive tracks 12, and supported by a flange 20.
  • the assembly is completed by an electronic circuit 22 which controls the execution of a watchmaking or other function according to the instructions provided by the electronic management circuit 16.
  • the first conductive tracks 1 2 define electrical contact pads 24 which it is necessary to transfer from the lower face 10 of the glass 4 to the dial 1 8.
  • the dial 1 8 comprises for this purpose second conductive tracks 26 which correspond to the electrical contact pads 24 and which are connected to the electronic management circuit 16 and the electronic control circuit 22.
  • the second conductive tracks 26 are structured only on a lower face
  • conductive tracks may also be structured on the upper face of the dial 18, in particular if these conductive tracks are transparent.
  • This flange 20 is made of a non-electrically conductive material and comprises means which must make it possible to ensure the electrical connection between the electrical contact pads 24 and the second conductive tracks 26.
  • These electrical connection means are constituted by third conductive tracks 32 which come into contact with the electrical contact pads 24 on the one hand, and with the second conductive tracks 26 on the other hand.
  • through holes or vias 34 are formed in the flange 20, in the region where it It supports the dial 18.
  • the second conductive tracks 26 may be made for example by photolithographic structuring of a layer ITO.
  • the second conductive tracks 26 may also be made for example of copper, silver or aluminum by means of a method such as a laser treatment method making it possible to obtain a device known as the English molded interconnect device or MID. Subsequently, the second conductive tracks 26 are structured by an electroplating process. According to a variant, it is also possible to structure the second conductive tracks 26 on the surface of the dial 1 8 by printing an electrically conductive ink. It is also conceivable to make the dial 18 by a method of bi-injection of a plastic material and a conductive material followed by an electroplating step.
  • the conductive tracks structured on the dial according to the invention do not necessarily serve to connect tactile keys formed on the underside of a watch crystal to electronic management and control circuits fixed on the dial. . It is thus quite possible to structure on one and / or the other of the lower and upper surfaces of the dial conductive tracks for interconnecting for example electronic circuits for managing and controlling a component housed in the volume of the watch case as an electric motor step-by-step.
  • FIG. 2 is a sectional view of a watch equipped with a dial according to an alternative embodiment of the invention.
  • a flange 34 is made of a piece with a dial 36.
  • This set 34 / dial 36 is made of a non-electrically conductive material and comprises means which must make it possible to ensure the electrical connection between the electric contact pads 24 formed on the lower face 10 of the glass 4 and the electronic management circuits 16 and control 22 mounted on a lower surface 38 of the assembly 34 / dial 36.
  • conductive tracks 40 are formed on at least one of the lower faces 38 or 42 of the upper assembly 34 / dial 36 and electrically connect the electrical contact pads 24 to the electronic circuit 16 and the electronic control circuit 22.
  • the conductive tracks 40 are structured only on the lower face 38 of the flange assembly 34 / dial 36.
  • conductive tracks may also be structured on the upper face 42 of the flange assembly 34 / dial 36, especially if these conductive tracks are transparent.
  • the assembly highlights 34 / dial 36 is made of a non-conductive material of electricity such as glass, a plastic material or even a ceramic material
  • the conductive tracks 40 can be made for example by photolithographic structuring an ITO layer.
  • the conductive tracks 40 may also be made for example of copper, silver or aluminum by means of a method such as a laser treatment method making it possible to obtain a device known as Molded Interconnect Device or MID. . Subsequently, the conductive tracks 40 are structured by an electroplating process. According to a variant, it is also possible to structure the conductive tracks 40 on the surface of the flange assembly 34 / dial 36 by printing an electrically conductive ink. It is also conceivable to make the whole flange 34 / dial 36 by a method of bi-injection of a plastic material and a conductive material followed by an electroplating step. It will be understood that the embodiment which has just been described with reference to FIG.

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Electric Clocks (AREA)
  • Electromechanical Clocks (AREA)

Abstract

The invention relates to an electromechanical or digital watch, the watch (1) including a middle (2) which defines, together with a glass (4), a watch case (6), the glass (4) including an upper surface (8) which faces towards a user, and a lower surface (10) which faces the watch case (6), the watch (1) also including a dial (18; 36) made of an electrically non-conductive material, the dial (18; 36) including a lower surface (28) and an upper surface (30) located on the observer side, the watch being characterised in that electrically conductive tracks (26; 40) for connecting one or more electronic components (16, 22) are structured on at least one of the lower (28) or upper (30) surfaces of the dial (18; 36). The invention also discloses a method for manufacturing such a dial.

Description

Montre électrom écan iq ue ou d ig itale com prenant u n cad ran et procédé de fabrication d ' u n tel cad ran  Electromechanical or digital timepiece including a clock and method of manufacturing such a clock
La présente invention concerne une montre comprenant un cadran. Plus précisément, la présente invention concerne une montre électromécanique ou digitale comprenant au moins un dispositif électronique agencé dans la boîte de montre. The present invention relates to a watch comprising a dial. More specifically, the present invention relates to an electromechanical or digital watch comprising at least one electronic device arranged in the watch case.
Au sens de la présente invention, on entend par montre électromécanique une montre comprenant au moins un indicateur d'une grandeur temporelle ou d'une grandeur non liée au temps entraîné par un moteur électrique. Par ailleurs, on entend par montre digitale une montre comprenant au moins un dispositif d'affichage numérique d'une grandeur temporelle ou d'une grandeur non liée au temps.  For the purposes of the present invention, the term "electromechanical watch" means a watch comprising at least one indicator of a time value or of a magnitude unrelated to time driven by an electric motor. Moreover, digital watch means a watch comprising at least one digital display device of a time magnitude or of a magnitude unrelated to time.
De même, au sens de l'invention, on entend par cadran un organe indicateur qui porte des indications diverses, horaires ou non liées au temps.  Similarly, in the sense of the invention, the term "dial" means an indicator organ which carries various indications, hourly or not related to time.
Les montres électromécaniques, de même que les montres digitales, comprennent une pluralité de composants électroniques discrets ou intégrés nécessaires à leur fonctionnement. Ces composants électroniques sont typiquement montés sur des cartes de circuit imprimé logées dans les boîtes des montres, sous la surface du cadran et à distance de celui-ci.  Electromechanical watches, as well as digital watches, comprise a plurality of discrete or integrated electronic components necessary for their operation. These electronic components are typically mounted on printed circuit boards housed in the watch cases, below the surface of the dial and at a distance therefrom.
On comprend que ces cartes de circuit imprimé constituent des composants supplémentaires sources de surcoûts de fabrication et qui prennent de la place dans le volume de la boîte de montre, de sorte qu'il est parfois difficile de les y loger.  It is understood that these printed circuit boards are additional components sources of additional manufacturing costs and which take up space in the volume of the watch case, so that it is sometimes difficult to accommodate them.
La présente invention a pour but de remédier à ces inconvénients ainsi qu'à d'autres encore en procurant un cadran pour une montre électromécanique ou digitale permettant avantageusement de s'affranchir, au moins partiellement, des cartes à circuit imprimé. The present invention aims to remedy these disadvantages as well as others by providing a dial for a watch electromechanical or digital enabling advantageously to overcome, at least partially, printed circuit boards.
A cet effet, la présente invention concerne une montre électromécanique ou digitale, la montre comprenant une carrure qui délimite avec une glace une boîte de montre, la glace comprenant une face supérieure orientée du côté d'un utilisateur, et une face inférieure orientée du côté de la boîte de montre, la montre comprenant également un cadran réalisé en un matériau non conducteur de l'électricité, le cadran comprenant une surface inférieure et une surface supérieure située du côté d'un observateur, la montre étant caractérisé en ce que des pistes électriquement conductrices pour la connexion d'un ou de plusieurs composants électroniques sont structurées sur l'une au moins des surfaces inférieure ou supérieure du cadran.  For this purpose, the present invention relates to an electromechanical or digital watch, the watch comprising a caseband which delimits with an ice a watch case, the ice comprising an upper face oriented on the side of a user, and a lower face oriented on the side. of the watch case, the watch also comprising a dial made of a non-electrically conductive material, the dial comprising a lower surface and an upper surface situated on the side of an observer, the watch being characterized in that tracks electrically conductive connectors for connecting one or more electronic components are structured on at least one of the lower or upper surfaces of the dial.
Selon une caractéristique complémentaire de l'invention, le cadran est réalisé en verre, en un matériau plastique ou bien encore en un matériau céramique.  According to a complementary characteristic of the invention, the dial is made of glass, a plastic material or even a ceramic material.
Grâce à ces caractéristiques, la présente invention procure une montre dont le cadran est réalisé en un matériau non conducteur de l'électricité, de sorte que l'une au moins des surfaces inférieure et supérieure de ce cadran peut être mise à profit pour la structuration de pistes électriquement conductrices permettant la connexion électrique d'au moins un composant électronique discret ou intégré. Il est ainsi possible de s'affranchir ou, tout du moins, de limiter la surface des cartes de circuit imprimé nécessaires au montage des composants électroniques de la montre, ce qui permet de limiter les coûts en termes de nombre de cartes de circuit imprimé utilisées et de temps de fabrication, ainsi que de réduire l'encombrement du mouvement d'horlogerie logé dans la boîte de montre.  With these features, the present invention provides a watch whose dial is made of a non-electrically conductive material, so that at least one of the lower and upper surfaces of this dial can be used for structuring electrically conductive tracks for the electrical connection of at least one discrete or integrated electronic component. It is thus possible to overcome or, at least, to limit the surface of the printed circuit boards necessary for mounting the electronic components of the watch, which makes it possible to limit the costs in terms of the number of printed circuit boards used. and manufacturing time, as well as reduce the clutter of the watch movement housed in the watch case.
D'autres caractéristiques et avantages de la présente invention ressortiront plus clairement de la description détaillée qui suit d'un exemple de réalisation d'une montre selon l'invention, cet exemple étant donné à titre purement illustratif et non limitatif seulement en liaison avec le dessin annexé sur lequel : Other features and advantages of the present invention will emerge more clearly from the detailed description which follows of an exemplary embodiment of a watch according to the invention, this example being given in purely illustrative and not limiting only in connection with the accompanying drawing in which:
- la figure 1 est une vue en coupe d'une montre équipée d'un cadran selon l'invention, et  FIG. 1 is a sectional view of a watch equipped with a dial according to the invention, and
- la figure 2 est une vue en coupe d'une montre équipée d'un cadran selon une variante de réalisation de l'invention.  - Figure 2 is a sectional view of a watch equipped with a dial according to an alternative embodiment of the invention.
La présente invention procède de l'idée générale inventive qui consiste à utiliser l'une et/ou l'autre des surfaces supérieure et inférieure d'un cadran de montre réalisé en un matériau non conducteur de l'électricité pour structurer des pistes conductrices permettant de connecter des composants électroniques discrets ou intégrés nécessaires au fonctionnement de la montre. De la sorte, il est possible de supprimer, ou du moins de limiter la surface des cartes de circuit imprimé, ce qui permet de limiter le temps et les coûts de fabrication, et de réduire l'encombrement du mouvement d'horlogerie logé dans la boîte de la montre.  The present invention proceeds from the general inventive idea of using one and / or the other of the upper and lower surfaces of a watch dial made of a non-conductive material of electricity to structure conductive tracks allowing to connect discrete or integrated electronic components necessary for the operation of the watch. In this way, it is possible to eliminate, or at least limit the surface of the printed circuit boards, which limits the time and manufacturing costs, and reduce the size of the watch movement housed in the circuit. watch box.
La présente invention va être décrite en liaison avec une pièce d'horlogerie comprenant une glace sur la surface inférieure de laquelle sont structurées des touches tactiles. Il va de soi que cet exemple est donné à titre purement illustratif et non limitatif seulement, et qu'un cadran de montre selon l'invention peut être utilisé avec tout type de dispositif électronique intégré dans une boîte de montre.  The present invention will be described in connection with a timepiece comprising an ice on the lower surface of which are structured tactile keys. It goes without saying that this example is given for purely illustrative and not limiting purposes only, and that a watch face according to the invention can be used with any type of electronic device integrated in a watch case.
La figure 1 annexée à la présente demande de brevet est une vue en coupe d'une montre équipée d'un cadran selon l'invention. Désignée dans son ensemble par la référence numérique générale 1 , cette montre comprend une carrure 2 qui délimite avec une glace 4 une boîte 6 de montre.  Figure 1 attached to this patent application is a sectional view of a watch equipped with a dial according to the invention. Designated as a whole by the general numerical reference 1, this watch comprises a middle part 2 which delimits with a mirror 4 a watch box 6.
La glace 4 comprend une face supérieure 8 dirigée du côté d'un utilisateur de la montre 1 , et une face inférieure 10 dirigée du côté de la boîte de montre 6. Sur la face inférieure 1 0 de la glace 4 est agencé un dispositif électronique. Le dispositif électronique peut être de tout type. Il peut s'agir d'un dispositif d'affichage numérique, par exemple à cristal liquide, ou bien (voir figure unique) de premières pistes conductrices 12 réalisées en un matériau transparent conducteur de l'électricité tel que de l'oxyde d'étain-indium, mieux connu sous sa dénomination anglo-saxonne Indium-Tin Oxyde ou ITO. Ces premières pistes conductrices 1 2 ont pour fonction de matérialiser à la surface de la glace 4 des touches tactiles sensibles aux variations de capacité et permettant à l'utilisateur, par apposition d'un doigt 14, d'introduire des instructions dans un circuit électronique 1 6 de gestion des touches tactiles. Ce circuit électronique de gestion 16 est monté sur une surface inférieure d'un cadran 18 selon l'invention logé dans la boîte de montre 6, sous et à distance des premières pistes conductrices 12, et soutenu par un rehaut 20. Le montage est complété par un circuit électronique 22 qui commande l'exécution d'une fonction horlogère ou autre en fonction des instructions fournies par le circuit électronique de gestion 16. The ice 4 comprises an upper face 8 directed towards the side of a user of the watch 1, and a lower face 10 directed towards the side of the watch case 6. On the lower face 1 0 of the ice 4 is arranged an electronic device . The electronic device can be of any type. he may be a digital display device, for example liquid crystal, or (see single figure) first conductive tracks 12 made of a transparent electrically conductive material such as tin oxide indium, better known under the name Anglo-Saxon Indium-Tin Oxide or ITO. These first conductive tracks 1 2 have the function of materializing on the surface of the glass 4 tactile keys sensitive to variations in capacity and allowing the user, by applying a finger 14, to introduce instructions in an electronic circuit 1 6 management of touch keys. This electronic management circuit 16 is mounted on a lower surface of a dial 18 according to the invention housed in the watch case 6, under and away from the first conductive tracks 12, and supported by a flange 20. The assembly is completed by an electronic circuit 22 which controls the execution of a watchmaking or other function according to the instructions provided by the electronic management circuit 16.
Les premières pistes conductrices 1 2 définissent des plages de contact électrique 24 qu'il est nécessaire de reporter depuis la face inférieure 10 de la glace 4 vers le cadran 1 8. Conformément à la présente invention, le cadran 1 8 comporte à cet effet des deuxièmes pistes conductrices 26 qui correspondent aux plages de contact électrique 24 et qui sont reliées au circuit électronique de gestion 16 et au circuit électronique de commande 22. Dans l'exemple représenté au dessin, les deuxièmes pistes conductrices 26 sont structurées uniquement sur une face inférieure 28 du cadran 1 8. Il va cependant de soi que des pistes conductrices peuvent aussi être structurées sur la face supérieure 30 du cadran 18, en particulier si ces pistes conductrices sont transparentes.  The first conductive tracks 1 2 define electrical contact pads 24 which it is necessary to transfer from the lower face 10 of the glass 4 to the dial 1 8. In accordance with the present invention, the dial 1 8 comprises for this purpose second conductive tracks 26 which correspond to the electrical contact pads 24 and which are connected to the electronic management circuit 16 and the electronic control circuit 22. In the example shown in the drawing, the second conductive tracks 26 are structured only on a lower face However, it goes without saying that conductive tracks may also be structured on the upper face of the dial 18, in particular if these conductive tracks are transparent.
Comme illustré au dessin, il peut être prévu à cet effet par exemple un rehaut 20 de forme générale circulaire disposé sous la glace 4 de la montre 1 . Ce rehaut 20 est réalisé en un matériau non conducteur de l'électricité et comprend des moyens qui doivent permettre d'assurer la connexion électrique entre les plages de contact électrique 24 et les deuxièmes pistes conductrices 26. Ces moyens de connexion électrique sont constitués par des troisièmes pistes conductrices 32 qui viennent en contact avec les plages de contact électrique 24 d'une part, et avec les deuxièmes pistes conductrices 26 d'autre part. Pour garantir un bon contact électrique entre les troisièmes pistes conductrices 32 ménagées sur le rehaut 20 et les deuxièmes pistes conductrices 26 ménagées sous la surface du cadran 18, des trous traversants ou vias 34 sont ménagés dans le rehaut 20, dans la région où celui-ci supporte le cadran 18. Selon une variante, il peut également être envisagé de structurer des plots de contact (encore connus sous la dénomination anglo-saxonne bumps) sur les troisièmes pistes conductrices 32 aux endroits où ces troisièmes pistes conductrices 32 sont en regard des deuxièmes pistes conductrices 26. As illustrated in the drawing, it may be provided for this purpose for example a flange 20 of generally circular shape disposed under the window 4 of the watch 1. This flange 20 is made of a non-electrically conductive material and comprises means which must make it possible to ensure the electrical connection between the electrical contact pads 24 and the second conductive tracks 26. These electrical connection means are constituted by third conductive tracks 32 which come into contact with the electrical contact pads 24 on the one hand, and with the second conductive tracks 26 on the other hand. To ensure good electrical contact between the third conductive tracks 32 formed on the flange 20 and the second conductive tracks 26 formed under the surface of the dial 18, through holes or vias 34 are formed in the flange 20, in the region where it It supports the dial 18. According to one variant, it is also possible to structure contact pads (also known as the bumps) on the third conductive tracks 32 at the places where these third conductive tracks 32 are opposite second conductive tracks 26.
Dans le cas où le cadran 18 est réalisé en un matériau non conducteur de l'électricité tel que du verre, un matériau plastique ou bien encore un matériau céramique, les deuxièmes pistes conductrices 26 peuvent être réalisées par exemple par structuration photolithographique d'une couche ITO. Les deuxièmes pistes conductrices 26 peuvent aussi être réalisées par exemple en cuivre, en argent ou en aluminium au moyen d'un procédé tel qu'un procédé de traitement laser permettant d'obtenir un dispositif connu sous la dénomination anglo-saxonne Molded Interconnect Device ou MID. Par la suite, les deuxièmes pistes conductrices 26 sont structurées par un procédé de galvanoplastie. Selon une variante, il est également possible de structurer les deuxièmes pistes conductrices 26 à la surface du cadran 1 8 par impression d'une encre conductrice de l'électricité. Il est de même envisageable de réaliser le cadran 18 par un procédé de bi-injection d'un matériau plastique et d'un matériau conducteur suivi d'une étape de galvanoplastie.  In the case where the dial 18 is made of an electrically nonconductive material such as glass, a plastic material or even a ceramic material, the second conductive tracks 26 may be made for example by photolithographic structuring of a layer ITO. The second conductive tracks 26 may also be made for example of copper, silver or aluminum by means of a method such as a laser treatment method making it possible to obtain a device known as the English molded interconnect device or MID. Subsequently, the second conductive tracks 26 are structured by an electroplating process. According to a variant, it is also possible to structure the second conductive tracks 26 on the surface of the dial 1 8 by printing an electrically conductive ink. It is also conceivable to make the dial 18 by a method of bi-injection of a plastic material and a conductive material followed by an electroplating step.
Il va de soi que la présente invention n'est pas limitée au mode de réalisation qui vient d'être décrit et que diverses modifications et variantes simples peuvent être envisagées par l'homme du métier sans sortir du cadre de l'invention tel que défini par les revendications annexées. On comprendra en particulier que dans des produits tels que la montre-bracelet commercialisée sous la marque enregistrée T-Touch®, la connexion électrique entre les touches tactiles structurées sur la face inférieure de la glace et le circuit électronique de gestion de ces touches tactiles peut aussi être réalisée au moyen de connecteurs élastomères, également connus sous la dénomination commerciale de connecteurs Zébra®. Ces connecteurs élastomères se composent d'une succession alternée de couches conductrices et de couches isolantes typiquement réalisées en élastomère qui fournissent des connexions à haute densité de chemins électriques. Il est également évident que les pistes conductrices structurées sur le cadran conforme à l'invention ne servent pas obligatoirement à relier des touches tactiles ménagées sur la face inférieure d'une glace de montre à des circuits électroniques de gestion et de commande fixés sur le cadran. Il est ainsi tout à fait envisageable de structurer sur l'une et/ou l'autre des surfaces inférieure et supérieure du cadran des pistes conductrices pour connecter entre eux par exemple des circuits électroniques de gestion et de commande d'un composant logé dans le volume de la boîte de montre comme un moteur électrique pas-à-pas. It goes without saying that the present invention is not limited to the embodiment which has just been described and that various modifications and simple variants can be envisaged by those skilled in the art without departing from the scope of the invention as defined by the appended claims. It will be understood in particular that in products such as the wristwatch marketed under the registered trademark T-Touch®, the electrical connection between the tactile keys structured on the underside of the glass and the electronic circuit for managing these tactile keys can also be achieved by means of elastomeric connectors, also known by the name commercial Zébra® connectors. These elastomeric connectors consist of an alternating succession of conductive layers and insulating layers typically made of elastomer which provide high density connections of electrical paths. It is also obvious that the conductive tracks structured on the dial according to the invention do not necessarily serve to connect tactile keys formed on the underside of a watch crystal to electronic management and control circuits fixed on the dial. . It is thus quite possible to structure on one and / or the other of the lower and upper surfaces of the dial conductive tracks for interconnecting for example electronic circuits for managing and controlling a component housed in the volume of the watch case as an electric motor step-by-step.
La figure 2 est une vue en coupe d'une montre équipée d'un cadran selon une variante de réalisation de l'invention. Dans ce qui suit, les éléments identiques à ceux décrits ci-dessus en liaison avec la figure 1 seront désignés par les mêmes références numériques. Comme on peut le voir à l'examen de la figure 2, un rehaut 34 est fait d'une pièce avec un cadran 36. Cet ensemble rehaut 34/cadran 36 est réalisé en un matériau non conducteur de l'électricité et comprend des moyens qui doivent permettre d'assurer la connexion électrique entre les plages de contact électrique 24 ménagées sur la face inférieure 10 de la glace 4 et les circuits électroniques de gestion 1 6 et de commande 22 montés sur une surface inférieure 38 de l'ensemble rehaut 34/cadran 36. A cet effet, des pistes conductrices 40 sont ménagées sur l'une au moins des faces inférieure 38 ou supérieure 42 de l'ensemble rehaut 34/cadran 36 et permettent de relier électriquement les plages de contact électriques 24 au circuit électronique de gestion 16 et au circuit électronique de commande 22. Dans l'exemple représenté au dessin, les pistes conductrices 40 sont structurées uniquement sur la face inférieure 38 de l'ensemble rehaut 34/cadran 36. Il va cependant de soi que des pistes conductrices peuvent aussi être structurées sur la face supérieure 42 de l'ensemble rehaut 34/cadran 36, en particulier si ces pistes conductrices sont transparentes. Dans le cas où l'ensemble rehaut 34/cadran 36 est réalisé en un matériau non conducteur de l'électricité tel que du verre, un matériau plastique ou bien encore un matériau céramique, les pistes conductrices 40 peuvent être réalisées par exemple par structuration photolithographique d'une couche ITO. Les pistes conductrices 40 peuvent aussi être réalisées par exemple en cuivre, en argent ou en aluminium au moyen d'un procédé tel qu'un procédé de traitement laser permettant d'obtenir un dispositif connu sous la dénomination anglo-saxonne Molded Interconnect Device ou MID. Par la suite, les pistes conductrices 40 sont structurées par un procédé de galvanoplastie. Selon une variante, il est également possible de structurer les pistes conductrices 40 à la surface de l'ensemble rehaut 34/cadran 36 par impression d'une encre conductrice de l'électricité. Il est de même envisageable de réaliser l'ensemble rehaut 34/cadran 36 par un procédé de bi-injection d'un matériau plastique et d'un matériau conducteur suivi d'une étape de galvanoplastie. On comprendra que le mode de réalisation qui vient d'être décrit en liaison avec la figure 2 présente notamment comme avantage que, dans le cas où l'on souhaite relier un composant électronique agencé sur la surface inférieure de la glace avec d'autres composants électroniques fixés sur le cadran, on évite tous les éléments de connexion du type bumps ou vias normalement utilisés pour assurer la liaison entre le rehaut et le cadran. Figure 2 is a sectional view of a watch equipped with a dial according to an alternative embodiment of the invention. In what follows, the elements identical to those described above in connection with Figure 1 will be designated by the same reference numerals. As can be seen from the examination of FIG. 2, a flange 34 is made of a piece with a dial 36. This set 34 / dial 36 is made of a non-electrically conductive material and comprises means which must make it possible to ensure the electrical connection between the electric contact pads 24 formed on the lower face 10 of the glass 4 and the electronic management circuits 16 and control 22 mounted on a lower surface 38 of the assembly 34 / dial 36. For this purpose, conductive tracks 40 are formed on at least one of the lower faces 38 or 42 of the upper assembly 34 / dial 36 and electrically connect the electrical contact pads 24 to the electronic circuit 16 and the electronic control circuit 22. In the example shown in the drawing, the conductive tracks 40 are structured only on the lower face 38 of the flange assembly 34 / dial 36. However, it goes without saying that conductive tracks may also be structured on the upper face 42 of the flange assembly 34 / dial 36, especially if these conductive tracks are transparent. In the case where the assembly highlights 34 / dial 36 is made of a non-conductive material of electricity such as glass, a plastic material or even a ceramic material, the conductive tracks 40 can be made for example by photolithographic structuring an ITO layer. The conductive tracks 40 may also be made for example of copper, silver or aluminum by means of a method such as a laser treatment method making it possible to obtain a device known as Molded Interconnect Device or MID. . Subsequently, the conductive tracks 40 are structured by an electroplating process. According to a variant, it is also possible to structure the conductive tracks 40 on the surface of the flange assembly 34 / dial 36 by printing an electrically conductive ink. It is also conceivable to make the whole flange 34 / dial 36 by a method of bi-injection of a plastic material and a conductive material followed by an electroplating step. It will be understood that the embodiment which has just been described with reference to FIG. 2 has the particular advantage that, in the case where it is desired to connect an electronic component arranged on the lower surface of the ice with other components. electronic fastened on the dial, it avoids all the connection elements of the type bumps or vias normally used to ensure the connection between the flange and the dial.

Claims

REV E N D I CAT I ON S REV ENDI CAT I ON S
1 . Montre électromécanique ou digitale, la montre (1 ) comprenant une carrure (2) qui délimite avec une glace (4) une boîte (6) de montre, la glace (4) comprenant une face supérieure (8) orientée du côté d'un utilisateur, et une face inférieure (1 0) orientée du côté de la boîte (6) de montre, la montre (1 ) comprenant également un cadran (18 ; 36) réalisé en un matériau non conducteur de l'électricité, le cadran (18 ; 36) comprenant une surface inférieure (28) et une surface supérieure (30) située du côté d'un observateur, la montre étant caractérisé en ce que des pistes (26 ; 40) électriquement conductrices pour la connexion d'un ou de plusieurs composants électroniques (16, 22) sont structurées sur l'une au moins des surfaces inférieure (28) ou supérieure (30) du cadran (18 ; 36). 1. Electromechanical or digital watch, the watch (1) comprising a middle (2) which delimits with an ice (4) a watch case (6), the ice (4) comprising an upper face (8) oriented on the side of a user, and a lower face (1 0) oriented on the side of the watch case (6), the watch (1) also comprising a dial (18; 36) made of a non-electrically conductive material, the dial ( 18; 36) comprising a bottom surface (28) and an upper surface (30) located on an observer side, the watch being characterized in that electrically conductive tracks (26; 40) for connecting one or a plurality of electronic components (16, 22) are structured on at least one of the lower (28) or upper (30) surfaces of the dial (18; 36).
2. Montre selon la revendication 1 , caractérisée en ce que la montre comprend un rehaut (20 ; 34) pourvu de moyens pour assurer, via les pistes (26) électriquement conductrices, la connexion électrique entre un dispositif électronique agencé sur la face inférieure (10) de la glace (4) et les composants électroniques (1 6, 22).  2. Watch according to claim 1, characterized in that the watch comprises a flange (20; 34) provided with means for providing, via the electrically conductive tracks (26), the electrical connection between an electronic device arranged on the lower face ( 10) ice (4) and the electronic components (1 6, 22).
3. Montre selon la revendication 2, caractérisée en ce que le rehaut (20) soutient le cadran (18).  3. Watch according to claim 2, characterized in that the flange (20) supports the dial (18).
4. Montre selon la revendication 2, caractérisée en ce que le rehaut (34) est fait d'une pièce avec le cadran (36).  4. Watch according to claim 2, characterized in that the flange (34) is made of a piece with the dial (36).
5. Montre selon l'une quelconque des revendications 1 à 4, caractérisée en ce que le cadran (18 ; 36) est réalisé en verre, en un matériau plastique ou bien en un matériau céramique.  5. Watch according to any one of claims 1 to 4, characterized in that the dial (18; 36) is made of glass, a plastic material or a ceramic material.
6. Montre selon l'une quelconque des revendications 1 à 5, caractérisée en ce que les pistes conductrices (26 ; 40) sont réalisées en oxyde d'étain-indium, en cuivre, en argent, en aluminium ou au moyen d'une encre conductrice. 6. Watch according to any one of claims 1 to 5, characterized in that the conductive tracks (26; 40) are made of tin-indium oxide, copper, silver, aluminum or by means of a conductive ink.
7. Procédé de fabrication d'un cadran pour une montre électromécanique ou digitale selon l'une quelconque des revendications 1 à 6, caractérisé en ce que le cadran est réalisé : 7. A method of manufacturing a dial for an electromechanical or digital watch according to any one of claims 1 to 6, characterized in that the dial is made:
- soit au moyen d'un procédé de traitement laser permettant d'obtenir un cadran connu sous la dénomination anglo-saxonne Molded Interconnect or by means of a laser treatment method making it possible to obtain a dial known as Angled Saxon Molded Interconnect.
Device ou MID, suivi par un procédé de structuration des électrodes par un procédé de galvanoplastie ; Device or MID, followed by a method of structuring the electrodes by an electroplating process;
- soit par impression d'une encre conductrice de l'électricité, ou bien - either by printing an ink conductive of electricity, or
- par un procédé de bi-injection d'un matériau plastique et d'un matériau conducteur suivi d'une étape de galvanoplastie. - By a method of bi-injection of a plastic material and a conductive material followed by an electroplating step.
EP14755633.6A 2013-12-16 2014-08-18 Electromechanical or digital watch comprising a dial and method for manufacturing such a dial Active EP3069200B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP14755633.6A EP3069200B1 (en) 2013-12-16 2014-08-18 Electromechanical or digital watch comprising a dial and method for manufacturing such a dial

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
EP13197462.8A EP2884352A1 (en) 2013-12-16 2013-12-16 Electromechanical or digital watch comprising a dial and method for manufacturing such a dial
PCT/EP2014/067555 WO2015090638A1 (en) 2013-12-16 2014-08-18 Electromechanical or digital watch including a dial and method for manufacturing such a dial
EP14755633.6A EP3069200B1 (en) 2013-12-16 2014-08-18 Electromechanical or digital watch comprising a dial and method for manufacturing such a dial

Publications (2)

Publication Number Publication Date
EP3069200A1 true EP3069200A1 (en) 2016-09-21
EP3069200B1 EP3069200B1 (en) 2017-10-04

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EP13197462.8A Withdrawn EP2884352A1 (en) 2013-12-16 2013-12-16 Electromechanical or digital watch comprising a dial and method for manufacturing such a dial
EP14755633.6A Active EP3069200B1 (en) 2013-12-16 2014-08-18 Electromechanical or digital watch comprising a dial and method for manufacturing such a dial

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US (1) US9829864B2 (en)
EP (2) EP2884352A1 (en)
JP (1) JP6170630B2 (en)
CN (2) CN105829979B (en)
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WO (1) WO2015090638A1 (en)

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EP2884352A1 (en) * 2013-12-16 2015-06-17 ETA SA Manufacture Horlogère Suisse Electromechanical or digital watch comprising a dial and method for manufacturing such a dial

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Publication number Priority date Publication date Assignee Title
FR2717917B1 (en) * 1994-03-24 1996-05-03 Asulab Sa Watch with a manual control device.
DE19544460C1 (en) * 1995-11-29 1997-08-28 Junghans Uhren Gmbh Clock, in particular wristwatch
DE19758924B3 (en) * 1996-07-24 2012-07-19 Tdk Corp. Solar battery device e.g. for wrist-watch - has photoelectric conversion elements connected in series, with electrode connections to each end of arrangement, which are brought out opposite to irradiation area of surface
DE29706122U1 (en) * 1997-04-07 1997-05-28 Creativ Product Elektro- und Feinmechanik GmbH, 99846 Seebach Dial for wristwatches
CH691635A5 (en) * 1997-09-09 2001-08-31 Asulab Sa Dial formed of a solar cell, in particular for a timepiece.
US6868046B2 (en) * 2000-11-17 2005-03-15 Asulab S.A. Electronic watch including capacitive keys on its crystal
ES2327708T3 (en) * 2000-11-17 2009-11-03 Asulab S.A. ELECTRONIC WATCH THAT INCLUDES CAPACITIVE BUTTONS ON YOUR CRYSTAL.
JP2003227884A (en) * 2001-11-29 2003-08-15 Casio Comput Co Ltd Light emission and display device and electronic apparatus
JP2003315475A (en) * 2002-04-24 2003-11-06 Seiko Epson Corp Timepiece
EP1734422A1 (en) * 2005-06-14 2006-12-20 Asulab S.A. Assembly of a touch-sensitive glass on a case
EP1734423B1 (en) * 2005-06-14 2009-10-14 Asulab S.A. Fitting of a tactile glass on a watch case
EP2884353B1 (en) * 2013-10-18 2018-01-31 ETA SA Manufacture Horlogère Suisse Touch-sensitive portable electronic object
EP2884352A1 (en) * 2013-12-16 2015-06-17 ETA SA Manufacture Horlogère Suisse Electromechanical or digital watch comprising a dial and method for manufacturing such a dial

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HK1198502A2 (en) 2015-05-08
US9829864B2 (en) 2017-11-28
EP2884352A1 (en) 2015-06-17
CN105829979A (en) 2016-08-03
JP6170630B2 (en) 2017-07-26
EP3069200B1 (en) 2017-10-04
US20160313705A1 (en) 2016-10-27
CN204613599U (en) 2015-09-02
JP2016538558A (en) 2016-12-08
WO2015090638A1 (en) 2015-06-25
CN105829979B (en) 2018-09-25

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