EP2989507B1 - Uhr mit einer digitalen informationsanzeigevorrichtung - Google Patents

Uhr mit einer digitalen informationsanzeigevorrichtung Download PDF

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Publication number
EP2989507B1
EP2989507B1 EP14702618.1A EP14702618A EP2989507B1 EP 2989507 B1 EP2989507 B1 EP 2989507B1 EP 14702618 A EP14702618 A EP 14702618A EP 2989507 B1 EP2989507 B1 EP 2989507B1
Authority
EP
European Patent Office
Prior art keywords
solar cell
plate
dial
digital information
display device
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
EP14702618.1A
Other languages
English (en)
French (fr)
Other versions
EP2989507A1 (de
Inventor
Fabian Dubois
Jean Laconte
Martin Jufer
Stéphane Leoni
Marc Schlappach
Mile Vidovic
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 EP15202670.4A priority Critical patent/EP3037900B1/de
Priority to EP14702618.1A priority patent/EP2989507B1/de
Publication of EP2989507A1 publication Critical patent/EP2989507A1/de
Application granted granted Critical
Publication of EP2989507B1 publication Critical patent/EP2989507B1/de
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • 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
    • G04C—ELECTROMECHANICAL CLOCKS OR WATCHES
    • G04C10/00—Arrangements of electric power supplies in time pieces
    • G04C10/02—Arrangements of electric power supplies in time pieces the power supply being a radioactive or photovoltaic source
    • G—PHYSICS
    • G04—HOROLOGY
    • G04G—ELECTRONIC TIME-PIECES
    • G04G9/00—Visual time or date indication means
    • G04G9/0023—Visual time or date indication means by light valves in general
    • G04G9/0029—Details
    • G04G9/0035—Details constructional

Definitions

  • the present invention relates to a timepiece comprising a digital information display device. More specifically, the invention relates to such a timepiece in which the digital display of information is more aesthetic and easier to read.
  • Wristwatches equipped with a digital information display device such as a liquid crystal cell have been known for a long time.
  • Such wristwatches typically include a dial under and away from which is arranged for example a liquid crystal cell.
  • a window in the dial of the watch allows the user to read hourly or other information displayed by the liquid crystal cell.
  • the liquid crystal cell is fixed on a platen housed in the watch case remote from the dial. There is therefore an unsightly gap between the surface of the dial and the display surface of the liquid crystal cell.
  • his vision may be impeded by the shadow projected by the edges of the window on the display surface of the liquid crystal cell.
  • liquid crystal cells that equip the wristwatches of the type described above most often comprise glass substrates joined together by means of a sealing frame.
  • These glass substrates are usually of square or rectangular shape because, even if it is technically possible to give such glass substrates shapes that deviate from the square or rectangular shape, this is hardly possible from a point of view. economic view.
  • the document DE 198 57 997 discloses a dial under the surface of which are simultaneously attached a liquid crystal cell and a solar cell.
  • the present invention aims to overcome the problems mentioned above as well as others by providing a timepiece provided with a digital information display device in which the display of information is more aesthetic and More legible.
  • the present invention relates to a display module for a timepiece, as defined in independent claim 1.
  • the present invention proceeds from the general inventive idea which consists, in the case of a timepiece comprising a dial on the underside of which is fixed a digital information display device, to removably accommodate a cell solar in a platinum arranged under the dial.
  • a timepiece comprising a dial on the underside of which is fixed a digital information display device
  • a cell solar in a platinum arranged under the dial.
  • the figure 1 is a perspective view and exploded of a first embodiment of a display module for a timepiece according to the invention.
  • this display module comprises a dial 2 which, in the example shown, is of generally circular shape. However, it will be understood that the shape of the dial may deviate from a circular profile and may be for example square or rectangular.
  • the dial 2 has an upper face 4 and a lower face 6 and is pierced with a hole 8 at its center for the passage of a set of axes of the minute and second hands (not shown in the drawing).
  • a window 10 is provided in the dial 2.
  • the decorative layer whose dial 2 is coated is omitted at the location corresponding to the window 10. Another solution to form the window 10 is to pierce the dial 2 at the desired location.
  • the display module 1 also comprises a digital information display device.
  • this digital information display device consists of a flexible liquid crystal display cell 12 which has a substantially semicircular shape.
  • This liquid crystal display cell 12 comprises a front substrate 14 which defines an upper display surface and a rear substrate 16.
  • the front 14 and rear 16 substrates are made of a flexible plastic material and are conventionally connected between them by a sealing frame (not visible in the drawing) which delimits a closed volume for the confinement of the liquid crystal.
  • a flexible electrical connector 18 connects the electrodes of the liquid crystal display cell 12 to an electronic control circuit (not shown).
  • the front substrate 14 of the liquid crystal display cell 12 is coated with an adhesive layer 20 formed of an optically transparent adhesive and through which the liquid crystal display cell 12 is applied against the lower face 6 of the dial 2.
  • the liquid crystal display cell 12 is mechanically laminated against the lower face 6 of the dial 2, then the assembly formed by the dial 2 and the cell liquid crystal display 12 is passed through an autoclave in order to expel the air possibly trapped between the adhesive layer 20 and the dial 2.
  • the pressure in the autoclave is 6 bar
  • the temperature of the treatment is of the order of 50 ° C
  • the treatment time is about 30 min.
  • the assembly is completed by a first solar cell 22.
  • this solar cell 22 corresponds to the preferred embodiment of the invention but that, in the basic variant of the invention, the display module 1 includes only the dial 2 and the liquid crystal display cell 12.
  • the solar cell 22 has a substantially semicircular shape complementary to the shape of the liquid crystal display cell 12. The sum of the area of the liquid crystal display cell 12 and the solar cell 22 substantially corresponds to that of the dial 2.
  • the solar cell 22 is arranged under and at a short distance from the dial 2. For this purpose, it is received in a plate 24 which is adapted in shape and dimensions to those of the dial 2.
  • the plate 24 comprises a bearing surface 26 whose area is substantially equal to that of the solar cell 22.
  • the solar cell 22 is provided along its outer perimeter of at least one and, preferably two pins 28 which are engaged in two corresponding housings 30 provided on the periphery of the plate 24.
  • the bearing surface 26 is pierced with two diametrically opposite through holes 32 in which are engaged springs 34 which ensure electrical contact between the two terminals of the solar cell 22 and the power supply circuit of the watch (not shown).
  • the assembly formed by the dial 2 and the liquid crystal display cell 12 is disposed above the solar cell 22 and bears on a peripheral rim 36 of the plate 24. It can be seen that the display cell liquid crystal 12 is located above an opening 38 formed in the plate 24 and whose extent substantially corresponds to the surface of the liquid crystal display cell 12. This opening 38 allows a backlight device 40 mounted from below the plate 24 to illuminate the liquid crystal display cell 12 from the rear.
  • the assembly formed by the dial 2, the liquid crystal display cell 12 and the solar cell 22 is detachably immobilized on the plate 24 by means of flexible locking hooks 42.
  • a module of FIG. 1 complete display that can be exchanged piece for room in case of malfunction. In case of problems, it is even possible to remove the display module 1 and not replace only the defective component (s), which is very advantageous from an economic point of view.
  • FIG 2 is a perspective and exploded view of a second exemplary embodiment of a display module for a timepiece according to the invention.
  • elements identical or similar to those already described in connection with the figure 1 will be designated by the same numerical references.
  • the dial 2 comprises a window 10 adapted in shape and dimensions to the shape and dimensions of the front substrate 14 which defines the upper display surface of the liquid crystal display cell 12.
  • a second solar cell 220 has substantially the same dimensions as the dial 2 and is provided with an opening 221 in which is housed the liquid crystal display cell 12 when the solar cell 220 is disposed under the dial 2. It is understood that when the Under the dial 2 there is a solar cell of the same dimensions as the dial 2, a portion of the surface of the solar cell will be masked by the liquid crystal display cell 12. It has been realized that the photovoltaic conversion efficiency of a given active surface solar cell is worse when the solar cell is partially obscured than when the active surface of the solar cell is reduced due to the resent of a shape opening in which the digital information display device is housed.
  • the display module illustrated in the figure 2 is identical to that described above in connection with the figure 1 .
  • the liquid crystal display cell 12 is fixed on the lower face 6 of the dial 2 preferably by rolling and the solar cell 220 is received in the plate 24. Subsequently, the assembly formed by the dial 2 and the cell
  • the liquid crystal display 12 is disposed above the solar cell 220, so that the solar cell 220 is under and at a short distance from the dial 2 and the liquid crystal display cell 12 is housed in the cell. opening 221.
  • a Backlight device 40 mounted below the plate 24 makes it possible to illuminate the liquid crystal display cell 12 from the rear through the opening 38 formed in the plate 24.
  • the assembly formed by the dial 2, the liquid crystal display cell 12 and the solar cell 220 are removably attached to the plate 24 by means of a plurality of flexible locking hooks 42.
  • the bearing surface 26 is pierced with two through-holes 32 placed close to one another on a diameter portion of the bearing surface 26 in which springs 34 are engaged. which make it possible to ensure the electrical contact between the two terminals of the solar cell 220 and the electric supply circuit of the watch (not shown).
  • the solar cell 220 is provided on its device with at least one and, preferably, three notches 44 which cooperate with three corresponding pins 46 of the plate 24.
  • the dial 2 In the case where the timepiece is of the solar watch type, the dial 2 must be at least partially transparent in order to let a sufficient amount of light to allow the solar cell 22, 220 to effectively recharge the battery of the shows while masking the solar cell 22, 220 with regard to the wearer.
  • the dial 2 can be made of a transparent plastic material and be covered with a layer of paint whose opacity is adjusted according to the thickness of the paint layer and / or the concentration of the pigments in the paint.
  • the transmittance of a dial 2 of transparent plastic covered with paint is of the order of 45%. In other words, 45% of the incident light is transmitted to the solar cell 22, 220 and the rest of the light is absorbed by the dial 2, which is sufficient to mask the solar cell 22, 220 with respect to the user.
  • the plastic dial 2 may be covered with a layer of mother-of-pearl whose thickness is typically 150 ⁇ m ⁇ 20 ⁇ m and whose transmittance is adjusted to 35%. Layer mother-of-pearl is fixed on the upper surface 4 of the dial 2 by means of an optically transparent adhesive layer.
  • the plastic dial 2 it is sought to confer on the plastic dial 2 an appearance of composite material of the carbon fiber type. It is known that such a composite material is obtained by means of interleaved carbon fibers which are impregnated with resin, the surface state of the resulting material having slightly raised areas which are repeated periodically.
  • the first solution consists in machining in the inner wall of the mold into which the plastics material is injected structures which will form as many zones in relief on the surface of the dial 2.
  • the second solution uses the principle of a conventional pad printing (decal with cliché) or an electronic printing that is also possible from a technical point of view but whose rendering for the eye is however a little less good.
  • the carbon effect is obtained by the alternating and periodic repetition of horizontal lines 48 and vertical lines 50. Even if the horizontal lines 48 seem brighter, this is only due to the angle of incidence of light. This effect makes the dial “live” depending on the light and it's exactly the same with real carbon.
  • the lines are black (horizontal lines and vertical lines). We could also use a mixture of black (vertical lines) and gray (horizontal lines) to obtain the carbon effect, but in this case it would be independent of light and quite static.
  • the liquid crystal display cell 12 and the first solar cell 22 each have a clearance, respectively 52 and 54, for the passage of the hour and minute pin axes.
  • a through hole 56 is formed on the edge of the bearing surface 26 of the plate 24 and the backlight device 40 is pierced with a hole 58.
  • the second solar cell 220 is pierced with a hole 60 at its center and the plate 24 is provided with a hole 62 defined by a guide flange 64.

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Electric Clocks (AREA)
  • Electromechanical Clocks (AREA)

Claims (6)

  1. Anzeigemodul für ein Zeitmessgerät, wobei dieses Anzeigemodul (1) einerseits ein Zifferblatt (2), auf dessen unterer Fläche (6) eine digitale Vorrichtung für die Anzeige von Informationen direkt befestigt ist, und andererseits eine Solarzelle (22; 220) und eine Platine (24) umfasst, wobei die Solarzelle (22; 220) auf der oberen Seite der Platine (24) auf einer ersten Abstützoberfläche (26) abstützend aufgenommen ist und wobei die durch das Zifferblatt (2) und die digitale Vorrichtung für die Anzeige von Informationen gebildete Baugruppe auf der oberen Seite der Platine (24) auf einer zweiten Abstützoberfläche (36) der Platine (24) abstützend aufgenommen ist, wobei diese Baugruppe die Solarzelle (22; 220) abdeckt.
  2. Anzeigemodul nach Anspruch 1, dadurch gekennzeichnet, dass die durch das Zifferblatt (2) und die digitale Vorrichtung für die Anzeige von Informationen gebildete Baugruppe einerseits und die Solarzelle (22; 220) andererseits auf der oberen Seite der Platine (4) abnehmbar befestigt sind.
  3. Anzeigemodul nach Anspruch 2, dadurch gekennzeichnet, dass die durch das Zifferblatt (2) und die digitale Vorrichtung für die Anzeige von Informationen gebildete Baugruppe einerseits und die Solarzelle (22) andererseits auf abnehmbare Weise auf der Platine (24) mittels flexibler Verriegelungshaken (42) fixiert sind.
  4. Anzeigemodul nach einem der Ansprüche 1 bis 3, dadurch gekennzeichnet, dass eine Hintergrundbeleuchtungsvorrichtung (40) auf einer unteren Seite der Platine (24) angeordnet und auf abnehmbare Weise darauf befestigt ist.
  5. Anzeigemodul nach Anspruch 4, dadurch gekennzeichnet, dass für den axialen Halt der Solarzelle (22; 220) die Platine (24) eine Abstützoberfläche (26) aufweist, deren Fläche im Wesentlichen gleich jener der Solarzelle (22; 220) ist, und dass die Solarzelle (22; 220) für den radialen Halt längs ihres äußeren Umfangs mindestens mit einem Vorsprung (28) oder mit einer Aussparung (44) versehen ist, der oder die entsprechend mit einem Aufnahmeraum (30) oder mit einer entsprechenden Aussparung (44), die auf dem Umfang der Platine (24) vorgesehen sind, zusammenwirken.
  6. Anzeigemodul nach Anspruch 5, dadurch gekennzeichnet, dass die durch das Zifferblatt (2) und die digitale Vorrichtung für die Anzeige von Informationen gebildete Baugruppe über der Solarzelle (22) angeordnet ist und sich auf einem Umfangsrand (36) der Platine (24) abstützt, wobei sich die digitale Vorrichtung für die Anzeige von Informationen senkrecht zu einer Öffnung (38) befindet, die in der Platine (24) ausgespart ist und deren Ausdehnung im Wesentlichen der Oberfläche der Flüssigkristall-Anzeigezelle (12) entspricht, wobei diese Öffnung (38) der unter der Platine (24) angeordneten Hintergrundbeleuchtungsvorrichtung (40) ermöglicht, die digitale Vorrichtung für die Anzeige von Informationen von hinten zu beleuchten.
EP14702618.1A 2013-04-24 2014-02-05 Uhr mit einer digitalen informationsanzeigevorrichtung Active EP2989507B1 (de)

Priority Applications (2)

Application Number Priority Date Filing Date Title
EP15202670.4A EP3037900B1 (de) 2013-04-24 2014-02-05 Herstellungsverfahren eines anzeigemoduls für eine uhr, das eine digitale vorrichtung für die anzeige von informationen umfasst
EP14702618.1A EP2989507B1 (de) 2013-04-24 2014-02-05 Uhr mit einer digitalen informationsanzeigevorrichtung

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
EP20130165115 EP2796946A1 (de) 2013-04-24 2013-04-24 Uhr mit einer digitalen Informationsanzeigevorrichtung
PCT/EP2014/052192 WO2014173552A1 (fr) 2013-04-24 2014-02-05 Module d'affichage pour une piece d'horlogerie comprenant une cellule solaire
EP14702618.1A EP2989507B1 (de) 2013-04-24 2014-02-05 Uhr mit einer digitalen informationsanzeigevorrichtung

Related Child Applications (2)

Application Number Title Priority Date Filing Date
EP15202670.4A Division-Into EP3037900B1 (de) 2013-04-24 2014-02-05 Herstellungsverfahren eines anzeigemoduls für eine uhr, das eine digitale vorrichtung für die anzeige von informationen umfasst
EP15202670.4A Division EP3037900B1 (de) 2013-04-24 2014-02-05 Herstellungsverfahren eines anzeigemoduls für eine uhr, das eine digitale vorrichtung für die anzeige von informationen umfasst

Publications (2)

Publication Number Publication Date
EP2989507A1 EP2989507A1 (de) 2016-03-02
EP2989507B1 true EP2989507B1 (de) 2017-02-01

Family

ID=48142694

Family Applications (3)

Application Number Title Priority Date Filing Date
EP20130165115 Withdrawn EP2796946A1 (de) 2013-04-24 2013-04-24 Uhr mit einer digitalen Informationsanzeigevorrichtung
EP15202670.4A Active EP3037900B1 (de) 2013-04-24 2014-02-05 Herstellungsverfahren eines anzeigemoduls für eine uhr, das eine digitale vorrichtung für die anzeige von informationen umfasst
EP14702618.1A Active EP2989507B1 (de) 2013-04-24 2014-02-05 Uhr mit einer digitalen informationsanzeigevorrichtung

Family Applications Before (2)

Application Number Title Priority Date Filing Date
EP20130165115 Withdrawn EP2796946A1 (de) 2013-04-24 2013-04-24 Uhr mit einer digitalen Informationsanzeigevorrichtung
EP15202670.4A Active EP3037900B1 (de) 2013-04-24 2014-02-05 Herstellungsverfahren eines anzeigemoduls für eine uhr, das eine digitale vorrichtung für die anzeige von informationen umfasst

Country Status (6)

Country Link
US (1) US9354614B2 (de)
EP (3) EP2796946A1 (de)
JP (1) JP6216443B2 (de)
CN (1) CN105143998B (de)
HK (1) HK1218447A1 (de)
WO (1) WO2014173552A1 (de)

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EP3182226B1 (de) 2015-12-15 2019-02-06 The Swatch Group Research and Development Ltd. Solarbetriebene skelettuhr
EP3195755A1 (de) * 2016-01-22 2017-07-26 Century Time Gems Ltd Uhr, die mit einem dekorativen verkleidungselement aus perlmutt versehen ist
US10802313B2 (en) * 2016-12-15 2020-10-13 Sharp Kabushiki Kaisha Display device
JP6469816B2 (ja) * 2017-02-06 2019-02-13 セイコーインスツル株式会社 時計
JP6888356B2 (ja) * 2017-03-21 2021-06-16 セイコーエプソン株式会社 電子時計
JP7098946B2 (ja) * 2018-02-01 2022-07-12 セイコーエプソン株式会社 太陽電池付ムーブメントおよび時計
EP3521945B1 (de) * 2018-02-05 2021-04-07 Montres Rado S.A. Zifferblatt für uhrwerk, und sein herstellungsverfahren
EP3816734A1 (de) * 2019-11-04 2021-05-05 ETA SA Manufacture Horlogère Suisse Elektronische armbanduhr mit solarzelle
JP7015481B2 (ja) * 2019-11-07 2022-02-03 カシオ計算機株式会社 文字板および時計
WO2023182617A1 (ko) * 2022-03-25 2023-09-28 삼성전자 주식회사 디스플레이를 포함하는 전자 장치
FI130409B (en) * 2022-07-06 2023-08-17 Suunto Oy Display unit for a body worn device

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Also Published As

Publication number Publication date
JP6216443B2 (ja) 2017-10-18
CN105143998B (zh) 2017-12-12
WO2014173552A1 (fr) 2014-10-30
US9354614B2 (en) 2016-05-31
JP2016519302A (ja) 2016-06-30
HK1218447A1 (zh) 2017-02-17
EP3037900A1 (de) 2016-06-29
EP2796946A1 (de) 2014-10-29
US20160070238A1 (en) 2016-03-10
EP2989507A1 (de) 2016-03-02
EP3037900B1 (de) 2016-10-12
CN105143998A (zh) 2015-12-09

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