EP0017580A1 - Tastenfeld mit Anzeigeleuchten, insbesondere für Steuerkasten - Google Patents

Tastenfeld mit Anzeigeleuchten, insbesondere für Steuerkasten Download PDF

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Publication number
EP0017580A1
EP0017580A1 EP80400432A EP80400432A EP0017580A1 EP 0017580 A1 EP0017580 A1 EP 0017580A1 EP 80400432 A EP80400432 A EP 80400432A EP 80400432 A EP80400432 A EP 80400432A EP 0017580 A1 EP0017580 A1 EP 0017580A1
Authority
EP
European Patent Office
Prior art keywords
plate
metallized
electroluminescent
covered
deposits
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.)
Withdrawn
Application number
EP80400432A
Other languages
English (en)
French (fr)
Inventor
Julien Petit
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.)
Orega Electronique et Mecanique
Original Assignee
Orega Electronique et Mecanique
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 Orega Electronique et Mecanique filed Critical Orega Electronique et Mecanique
Publication of EP0017580A1 publication Critical patent/EP0017580A1/de
Withdrawn legal-status Critical Current

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Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H13/00—Switches having rectilinearly-movable operating part or parts adapted for pushing or pulling in one direction only, e.g. push-button switch
    • H01H13/70—Switches having rectilinearly-movable operating part or parts adapted for pushing or pulling in one direction only, e.g. push-button switch having a plurality of operating members associated with different sets of contacts, e.g. keyboard
    • H01H13/83—Switches having rectilinearly-movable operating part or parts adapted for pushing or pulling in one direction only, e.g. push-button switch having a plurality of operating members associated with different sets of contacts, e.g. keyboard characterised by legends, e.g. Braille, liquid crystal displays, light emitting or optical elements
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H2207/00—Connections
    • H01H2207/01—Connections from bottom to top layer
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H2209/00—Layers
    • H01H2209/024—Properties of the substrate
    • H01H2209/026—Properties of the substrate metallic
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H2219/00—Legends
    • H01H2219/002—Legends replaceable; adaptable
    • H01H2219/018—Electroluminescent panel
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H2219/00—Legends
    • H01H2219/028—Printed information
    • H01H2219/034—Coloured areas
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H2231/00—Applications
    • H01H2231/026—Car
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H2231/00—Applications
    • H01H2231/032—Remote control

Definitions

  • the present invention relates to a keyboard with keys and indicator lights, in particular for control boxes.
  • keyboards generally have placed one above the other a support plate, rigid or flexible on which are deposited conductive metallized zones, an interlayer sheet of insulating material pierced with openings facing the metallized zones of the support plate, and a plate upper comprising, facing the metallized areas of the support plate, deformable areas covered on their lower surface with a conductive metallic deposit.
  • the upper plate is flexible and deformable, so that when a pressure is exerted on its upper surface at a place corresponding to a metallized zone, this flexible plate deforms and the metallized zone comes into contact with a corresponding metallized zone of the support plate.
  • the upper plate is stamped with protuberances, each of these protuberances corresponding to a key.
  • the inner surface of the protrusions is covered with a conductive metallic deposit.
  • the present invention provides a keyboard with keys and indicator lights of planar shape and very reduced thickness.
  • the keyboards with indicator lights generally comprise light sources, such as electric bulbs, placed under the support plate, which is then for example translucent. These light sources are for example placed vertically on the keys so as to illuminate them when pressure is exerted on their surface.
  • the invention proposes to reduce this drawback by using a support plate comprising light-emitting zones.
  • the keyboard with keys and indicator lights comprises placed one above the other a support plate covered with conductive metallic areas, an insulating interlayer sheet pierced with openings vertically in the metallized areas of the support plate, a upper plate of which at least the parts opposite the openings of the intermediate plate are carriers of metallized zones, and is characterized in that the support plate comprises a metal plate on which is deposited a layer of dielectric material covered with conductive and electroluminescent metallized deposits .
  • the keyboard according to the invention also has the advantage of dissipating very little energy.
  • Figures la and lb show a first embodiment of a keyboard with keys and indicator lights according to the invention.
  • This keyboard comprises a support plate, comprising a metal plate 1, for example of stainless steel one millimeter thick, on which is deposited a layer 2 of dielectric material vitrified at high temperature.
  • This layer 2 is covered in certain areas of metallized deposits 3 conductors and electroluminescent, of predetermined shape. All these metallized deposits 3 are connected to conductive pads 4 serving as supply terminals.
  • the assembly composed of the metal plate 1, the dielectric layer 2, and a metallized deposit 3 constitutes a capacitor.
  • an alternating or pulsed voltage for example of a value between 130 and 250 volts, is applied between the metallized and electroluminescent deposit 3 and the metal plate 1, this deposit becomes uniformly luminous.
  • the alternating excitation voltage is applied between, on the one hand a stud 13 secured to the metal plate 1, and on the other hand the ends 20 of the conductive printed circuits 6 connected to the conductive pads 4.
  • two metallic printed networks 7 and 8 partially cover the dielectric layer 2. These networks include groups of nested conductors 9, each group corresponding to an electroluminescent zone 3.
  • An intermediate sheet 12 of insulating material is placed above the printed networks 7 and 8, and is pierced with openings 14 vertically to the groups of nested conductors 9.
  • An upper plate 11, flexible, is positioned on the intermediate sheet 12. This upper plate 11 can be entirely metallized or covered with metallized zones 10 as shown in FIG. 1b.
  • the metallized upper plate 11 brings the different conductors 9 of the networks 7 and 8 into contact. It is therefore possible to connect electrically by this means electronic circuits connected at the output of the networks 7 with electronic circuits connected at the output of the network 8. On the other hand, it is also possible by establishing the contact of the various conductors 9 of a given conductor group, of injecting between the stud 13 of the metal plate 1 and the patch 4 of a metallized and electroluminescent deposit 3 an alternating voltage so as to make this deposit 3 luminous.
  • contact can be established between a terminal deposited on the dielectric layer 2 and a terminal deposited on the lower surface of the flexible plate 11.
  • the terminal of the flexible plate can be connected to electronic circuits, by keeping this flexible plate under pressure on said electronic circuits as described in the patent application filed under No. 79/02102 on January 26, 1979 in the name of OREGA ELECTRONIQUE ET MECANIQUE.
  • Figures 2a and 2b show a second embodiment of a keyboard with keys and indicator lights according to the invention.
  • the support plate then comprises a metal plate 1 on a part of which is deposited a layer 2 of dielectric material.
  • This layer 2 is covered, as in FIG. La, in certain zones of metallized deposits 3 conductors and electroluminescent.
  • the part of the plate 1, not covered with a dielectric layer, is used as a common pole for the various keys of the keyboard.
  • an intermediate sheet 12 is placed above this part not covered with dielectric material and is pierced with openings 14.
  • a flexible upper plate 11 is positioned on the intermediate sheet 12. As in the case of FIGS. 1a and 1b, it can be entirely or partially metallized.
  • the alternating excitation voltage of the light-emitting conductive deposits 3 is applied between the stud 13 of the metal plate 1 and the pads 4 of the different light-emitting deposits 3 which may be of any shape and covered with a fluorescent paint.
  • FIG. 3 shows an exploded perspective view of a third embodiment of the invention.
  • the keyboard comprises a support plate comprising, as in the case of FIG. 1 a, a metal plate 1 entirely covered with a layer 2 of dielectric material.
  • This layer 2 is then partially covered by electroluminescent conductive deposits 3 of surface corresponding to the desired contact areas.
  • electroluminescent conductive deposits 3 can be covered with a fluorescent paint, an insulating film, or a transparent insulating varnish allowing the light area to be seen.
  • a conductive metallic zone 15 representing, for example a symbol personalizing the function of the key, or even a number; is placed on this transparent insulating varnish.
  • These different metallized zones 15 can be connected together and connected to a single output terminal 16, or each connected to an independent terminal. Each of these metallized areas 15 constitutes a contact terminal of a key on the keyboard.
  • an intermediate sheet 12 is placed above the support plate, and is pierced with openings 14 vertically to the metallized areas 15 of this support plate.
  • An upper plate 11, flexible and deformable, is positioned above the intermediate sheet 12.
  • This plate 11 comprises at least zones 17, placed vertically of the openings 14 of the intermediate sheet, transparent or translucent.
  • the zones 17 have their lower surface covered, opposite the metallized zones 15 of the support plate, by conductive metallized zones 10 of shape identical to the shapes. of these metallized areas 15 of the support plate. All these metallized zones 10 can be connected to electronic circuits by printed connections 18.
  • the alternating excitation voltage of the electroluminescent conductive deposits 3 is applied just as in the case of FIGS. 1a and 2a, between the stud 13 of the plate 1 and the various pads 4, these pads 4 being able to be in contact with pads 4 'of the upper plate 11 which they are connected using a printed circuit 20' to the AC voltage source (not shown).
  • FIGS 1, 2 and 3 show keyboards according to the invention with touch keys. This type of key is only given as an explanatory example. According to a variant of the invention, it is entirely possible to have touch buttons with an abrupt trigger, as described in the French patent application filed under No. 78/33291, on November 24, 1978 in the name OF ELECTRONIC AND MECHANICAL OREGA.
  • the upper plate 11 is then stamped so as to have translucent or transparent protuberances at the locations of the zones 17.
  • the keyboard according to the invention sees its applications in control boxes, remote control in very varied fields such as the automobile, machine tools.

Landscapes

  • Input From Keyboards Or The Like (AREA)
  • Push-Button Switches (AREA)
EP80400432A 1979-04-03 1980-04-01 Tastenfeld mit Anzeigeleuchten, insbesondere für Steuerkasten Withdrawn EP0017580A1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR7908374A FR2453487A1 (fr) 1979-04-03 1979-04-03 Clavier a touches et a temoins lumineux, notamment pour boitier de commande
FR7908374 1979-04-03

Publications (1)

Publication Number Publication Date
EP0017580A1 true EP0017580A1 (de) 1980-10-15

Family

ID=9223894

Family Applications (1)

Application Number Title Priority Date Filing Date
EP80400432A Withdrawn EP0017580A1 (de) 1979-04-03 1980-04-01 Tastenfeld mit Anzeigeleuchten, insbesondere für Steuerkasten

Country Status (2)

Country Link
EP (1) EP0017580A1 (de)
FR (1) FR2453487A1 (de)

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3128408A1 (de) * 1981-07-17 1983-02-03 Kaltenbach & Voigt Gmbh & Co, 7950 Biberach Vorrichtung zur umwandlung des druckes eines druckmittels in ein elektrisches signal
US4531034A (en) * 1983-03-24 1985-07-23 Nitsuko Limited Key switch devices with indicator lamp means
US4683360A (en) * 1986-05-09 1987-07-28 W. H. Brady Co. Membrane switch combined with electroluminescent lamp panel
EP0323916A2 (de) * 1988-01-08 1989-07-12 Marconi Electronic Devices Limited Drucktastenfeld
GB2250380A (en) * 1990-11-27 1992-06-03 Ist Lab Ltd Switch apparatus
DE4109138A1 (de) * 1991-03-20 1992-09-24 Thomson Brandt Gmbh Eingabetastatur
GB2306783A (en) * 1995-10-16 1997-05-07 Gen Information Systems Ltd Integrated circuit card reader
WO2001015189A1 (en) * 1999-08-24 2001-03-01 Kajlich Anton A switch for a touch pad
FR2865445A1 (fr) * 2004-01-27 2005-07-29 Siemens Vdo Automotive Dispositif de controle d'acces et / ou de demarrage d'un vehicule automobile

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2266282A1 (de) * 1974-04-01 1975-10-24 Litton Industries Inc
US4060703A (en) * 1976-11-10 1977-11-29 Everett Jr Seth Leroy Keyboard switch assembly with tactile feedback having illuminated laminated layers including opaque or transparent conductive layer
FR2389217A1 (fr) * 1977-04-25 1978-11-24 Amp Inc Commutateur electrique transparent pour dispositif d'affichage

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2266282A1 (de) * 1974-04-01 1975-10-24 Litton Industries Inc
US4060703A (en) * 1976-11-10 1977-11-29 Everett Jr Seth Leroy Keyboard switch assembly with tactile feedback having illuminated laminated layers including opaque or transparent conductive layer
FR2389217A1 (fr) * 1977-04-25 1978-11-24 Amp Inc Commutateur electrique transparent pour dispositif d'affichage

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
IBM TECHNICAL DISCLOSURE BULLETIN, Vol. 13, No. 3, Aout 1970 New York (US) W.W. ELLINGTON: "Luminescing flexible switch", page 742. * Page 742 * *
IBM TECHNICAL DISCLOSURE BULLETIN, Vol. 9, No. 7, Decembre 1966 New York (US) W.D. THORNE: "Matrix keyboard with hydraulic reset and fluorescent character indication", page 848. * Page 845, alinea 1 * *

Cited By (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3128408A1 (de) * 1981-07-17 1983-02-03 Kaltenbach & Voigt Gmbh & Co, 7950 Biberach Vorrichtung zur umwandlung des druckes eines druckmittels in ein elektrisches signal
US4531034A (en) * 1983-03-24 1985-07-23 Nitsuko Limited Key switch devices with indicator lamp means
US4683360A (en) * 1986-05-09 1987-07-28 W. H. Brady Co. Membrane switch combined with electroluminescent lamp panel
EP0323916A2 (de) * 1988-01-08 1989-07-12 Marconi Electronic Devices Limited Drucktastenfeld
GB2213648A (en) * 1988-01-08 1989-08-16 Marconi Electronic Devices Push-button keypads
EP0323916A3 (de) * 1988-01-08 1990-12-27 Marconi Electronic Devices Limited Drucktastenfeld
GB2250380A (en) * 1990-11-27 1992-06-03 Ist Lab Ltd Switch apparatus
GB2250380B (en) * 1990-11-27 1995-01-04 Ist Lab Ltd Switch apparatus
DE4109138A1 (de) * 1991-03-20 1992-09-24 Thomson Brandt Gmbh Eingabetastatur
GB2306783A (en) * 1995-10-16 1997-05-07 Gen Information Systems Ltd Integrated circuit card reader
GB2306783B (en) * 1995-10-16 1999-10-06 Gen Information Systems Ltd Integrated circuit card reader
WO2001015189A1 (en) * 1999-08-24 2001-03-01 Kajlich Anton A switch for a touch pad
FR2865445A1 (fr) * 2004-01-27 2005-07-29 Siemens Vdo Automotive Dispositif de controle d'acces et / ou de demarrage d'un vehicule automobile

Also Published As

Publication number Publication date
FR2453487B1 (de) 1982-01-22
FR2453487A1 (fr) 1980-10-31

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PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

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Effective date: 19811118

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Inventor name: PETIT, JULIEN