FR2673761A1 - Keyboard with movable keys - Google Patents

Keyboard with movable keys Download PDF

Info

Publication number
FR2673761A1
FR2673761A1 FR9102801A FR9102801A FR2673761A1 FR 2673761 A1 FR2673761 A1 FR 2673761A1 FR 9102801 A FR9102801 A FR 9102801A FR 9102801 A FR9102801 A FR 9102801A FR 2673761 A1 FR2673761 A1 FR 2673761A1
Authority
FR
France
Prior art keywords
key
keyboard
cell
keyboard according
function
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
FR9102801A
Other languages
French (fr)
Inventor
Graucaut Alain
Lucien
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.)
SYSTEMES AUDIO FREQUENCES
Original Assignee
SYSTEMES AUDIO FREQUENCES
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 SYSTEMES AUDIO FREQUENCES filed Critical SYSTEMES AUDIO FREQUENCES
Priority to FR9102801A priority Critical patent/FR2673761A1/en
Publication of FR2673761A1 publication Critical patent/FR2673761A1/en
Pending legal-status Critical Current

Links

Classifications

    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01HELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H13/00Switches having rectilinearly-movable operating part or parts adapted for pushing or pulling in one direction only, e.g. push-button switch
    • H01H13/70Switches 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
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01HELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H2219/00Legends
    • H01H2219/002Legends replaceable; adaptable
    • H01H2219/01Liquid crystal
    • H01H2219/012Liquid crystal programmable
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01HELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H2219/00Legends
    • H01H2219/002Legends replaceable; adaptable
    • H01H2219/014LED
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01HELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H2239/00Miscellaneous
    • H01H2239/05Mode selector switch, e.g. shift, or indicator

Landscapes

  • Input From Keyboards Or The Like (AREA)

Abstract

Keyboard with movable keys, characterised in that the visible face of each key consists of a liquid crystal cell (7) making it possible to display the information relating to the function of the key. The identification symbol of the key appears light on a dark background. The cell (7) is backlit by a light-emitting diode (18-19).

Description

La présente invention est relative à un clavier à touches mobiles et concerne, plus particulièrement, les claviers dont chaque touche est apte à remplir plusieurs fonctions, chaque fonction étant sélectionnée par une commande indépendante du clavier. The present invention relates to a keyboard with movable keys and relates, more particularly, to keyboards, each key of which is capable of performing several functions, each function being selected by an independent command from the keyboard.

Chaque touche comporte des symboles permettant d'afficher les fonctions susceptibles d'être commandées par l'enfoncement de ladite touche qui, naturellement, comporte un éclairage, logé à l'intérieur de la touche, constitué par une petite ampoule à incandescence. Each button has symbols enabling the display of the functions that can be controlled by pressing the button, which naturally includes lighting, housed inside the button, consisting of a small incandescent bulb.

De ce fait, si le clavier est à triple fonction, chaque touche comportera trois symboles qui seront éclairés en même temps. Therefore, if the keyboard is triple function, each key will have three symbols which will be lit at the same time.

De tels claviers présentent de nombreux inconvénients parmi lesquels il faut citer ceux ci-dessous
L'attention de l'utilisateur est sollicitée par une surface éclairée importante et rien n'indique à ce dernier la fonction qui est sélectionnée. II est donc nécessaire de prévoir un ensemble de témoins lumineux, indépendants du clavier, qui indiquent la fonction sélectionnée.
Such keyboards have many drawbacks, among which we must mention those below
The attention of the user is requested by a large illuminated surface and nothing indicates to the latter which function is selected. It is therefore necessary to provide a set of indicator lights, independent of the keyboard, which indicate the selected function.

En plein jour, il est nécessaire de forcer l'intensité lumineuse du clavier, par contre, si l'éclairement ambiant est bas, il faut réduire ladite intensité lumineuse et des dispositifs compliqués sont indispensables pour atteindre ce résultat. In broad daylight, it is necessary to force the light intensity of the keyboard, on the other hand, if the ambient lighting is low, it is necessary to reduce said light intensity and complicated devices are essential to achieve this result.

D'une façon générale, I'éclairement du clavier dissipe une quantité non négligeable de chaleur difficilement compatible avec le fonctionnement de dispositifs électroniques compliqués tels que ceux mis en oeuvre en aréonautique par exemple. In general, the illumination of the keyboard dissipates a non-negligible amount of heat which is difficult to compatible with the operation of complicated electronic devices such as those used in aeronautics for example.

Enfin, il faut encore signaler qu'un tel clavier émet nécessairement un rayonnement infrarouge qui perturbe la vision de nuit de l'utilisateur qui emploie des jumelles à vision nocturne. Finally, it should also be noted that such a keyboard necessarily emits infrared radiation which disturbs the night vision of the user who uses binoculars with night vision.

La présente invention, qui remédie à ces inconvénients, est remarquable en ce que la face visible de chaque touche est constituée par une cellule à cristaux liquides dénommée ci-après LCD, divisée physiquement en autant de zones que la touche comporte de fonctions, chaque zone étant éclairée par, au moins, une diode électroluminescente. The present invention, which overcomes these drawbacks, is remarkable in that the visible face of each key is constituted by a liquid crystal cell hereinafter called LCD, physically divided into as many zones as the key has functions, each zone being illuminated by, at least, a light emitting diode.

Selon l'invention, et contrairement à l'usage, les symboles portés par la touche apparaîssent en clair sur fond sombre. De cette façon, tout en assurant un bon contraste, on réduit la surface éclairée. According to the invention, and contrary to usage, the symbols carried by the key appear in light on a dark background. In this way, while ensuring good contrast, the illuminated area is reduced.

La réduction de la surface éclairée du clavier est aussi obtenue en n'excitant que la zone de la LCD correspondant à la fonction sélectionnée. The reduction of the illuminated surface of the keyboard is also obtained by exciting only the area of the LCD corresponding to the selected function.

Il faut noter que, par ce procédé, il ne subsiste aucun doute en ce qui concerne la détermination de la fonction sélectionnée. It should be noted that, by this method, there is no doubt as regards the determination of the selected function.

Les diodes ont surtout pour fonction de rendre la lecture possible lorsque l'éclairement ambiant est faible ou nul. Par un choix judicieux des diodes, il est possible de matérialiser chaque fonction sélectionnée par une couleur différente. The main function of the diodes is to make reading possible when the ambient lighting is low or zero. By a judicious choice of diodes, it is possible to materialize each selected function by a different color.

Enfin, il faut signaler qu'un tel clavier est parfaitement compatible avec l'utilisation de jumelles à vision nocturne puisque le rayonnement émis par chaque diode peut être choisi de façon à être situé en dehors de la fréquence du rayonnement infrarouge. Finally, it should be noted that such a keyboard is perfectly compatible with the use of binoculars with night vision since the radiation emitted by each diode can be chosen so as to be located outside the frequency of the infrared radiation.

L'invention sera mieux comprise par la description qui va suivre faite en se référant aux dessins annexés à titre d'exemple indicatif seulement, sur lesquels
-la figure 1 est une vue, partielle et en coupe, effectuée selon la ligne 1-1 de la figure 2;
-la figure 2 est à plus petite échelle la vue de dessus, partielle, d'un clavier conforme à l'invention;
-la figure 3 est une vue en coupe, analogue à celle 1, effectuée selon la ligne 111-111 de la figure 2;
-la figure 4 est une vue en coupe, analogue à celle 3, effectuée selon la ligne IV-IV de la figure 2.
The invention will be better understood from the description which follows made with reference to the accompanying drawings by way of indicative example only, in which
FIG. 1 is a view, partial and in section, taken along line 1-1 of FIG. 2;
FIG 2 is on a smaller scale the partial top view of a keyboard according to the invention;
FIG 3 is a sectional view, similar to that 1, taken along line 111-111 of Figure 2;
FIG. 4 is a sectional view, similar to that 3, taken along the line IV-IV of FIG. 2.

En se reportant aux dessins et selon un mode de réalisation, on voit que le clavier de l'invention est constitué par l'assemblage de trois parties 1, 2 et 3. Referring to the drawings and according to one embodiment, it can be seen that the keyboard of the invention consists of the assembly of three parts 1, 2 and 3.

La partie 1, ou base, renferme des contacteurs 4, usuels, commandés chacun par l'enfoncement de la touche correspondante. Part 1, or base, contains the usual contactors 4, each controlled by pressing the corresponding button.

La partie 2, qui se présente sous la forme d'une plaque alvéolée, constitue l'organe de guidage des touches mobiles. Part 2, which is in the form of a honeycomb plate, constitutes the guide member for the movable keys.

La partie 3, ou guide-doigt, a pour fonction, comme son nom l'indique, de centrer le doigt de l'utilisateur sur la touche choisie, mais elle a aussi pour fonction de retenir les touches dans des logements 5 de la plaque 2. Part 3, or finger guide, has the function, as its name suggests, of centering the user's finger on the chosen key, but it also has the function of retaining the keys in housings 5 of the plate 2.

Chaque touche 6 est constituée d'une enveloppe tubulaire guidée dans le logement 5, correspondant, dont l'extrémité supérieure présente un épaulement intérieur sur lequel repose une cellule à cristaux liquides 7, ou LCD. Each button 6 consists of a tubular envelope guided in the corresponding housing 5, the upper end of which has an internal shoulder on which a liquid crystal cell 7, or LCD, rests.

Chaque touche 6 présente des cloisons internes, 8 et 9 par exemple, s'étendant jusqu'a la face inférieure de la LCD. Dans le cas où la touche doit remplir trois fonctions, I'enveloppe de cette dernière et les cloisons délimitent trois zones, telles que celles 10,11 et 12 de la figure 2. Each key 6 has internal partitions, 8 and 9 for example, extending to the underside of the LCD. In the case where the key must fulfill three functions, the envelope of the latter and the partitions delimit three zones, such as those 10, 11 and 12 of FIG. 2.

Chaque touche 6 présente un doigt central 13, susceptible, lors de son enfoncement d'actionner le contacteur 4 correspondant. Lorsque l'action sur la touche cesse, celle-ci remonte repoussée par le ressort usuel du contacteur. Each key 6 has a central finger 13 which, when pressed, can activate the corresponding contactor 4. When the action on the button ceases, it goes back pushed up by the usual contactor spring.

Les contacteurs sont fixés sur une carte à circuits imprimés 14 et connectés à celle-ci de la façon usuelle. La carte 14 est maintenue par des vis, telles que celles 15, qui assurent l'assemblage des parties i et 2 du clavier.  The contactors are fixed to and connected to a printed circuit board 14 in the usual manner. The card 14 is held by screws, such as those 15, which assemble the parts i and 2 of the keyboard.

La carte 14, alimente, par l'entremise d'une tresse 16, une seconde carte à circuits imprimés 17 interposée entre les parties 1 et 2 du clavier. The card 14 supplies, via a braid 16, a second printed circuit card 17 interposed between the parts 1 and 2 of the keyboard.

La carte 17 porte et alimente des diodes électroluminescentes telles que celles 18 et 19. La carte 17 alimente les différentes zones de la LCD par l'entremise de contacts à ressorts 20 disposés, de préférence, auX quatres angles de la LCD. Lorsque le clavier est sélectionné pour une fonction qui correspond, par exemple, à la zone d'affichage 10, seules les diodes 18 sont sous tension. The card 17 carries and supplies light-emitting diodes such as those 18 and 19. The card 17 supplies the different zones of the LCD by means of spring contacts 20 arranged, preferably, at the four corners of the LCD. When the keyboard is selected for a function which corresponds, for example, to the display area 10, only the diodes 18 are energized.

Comme le contact entre la face inférieure de la LCD et les parties usinées des touches 6 n'est jamais parfait, un joint 21 est interposé entre la LCD et l'épaulement de ladite touche 6. De cette façon on évite, dans l'exemple choisi, qu'un hallo lumineux se produise en bordure des zones 11 et 12. As the contact between the underside of the LCD and the machined parts of the keys 6 is never perfect, a seal 21 is interposed between the LCD and the shoulder of the said key 6. In this way, in the example, it is avoided chosen, that a luminous hallo occurs at the edge of zones 11 and 12.

Enfin il faut signaler que le guide-doigt 3 est maintenu contre la plaque 2 par tous moyens appropriés, des vis 22 par exemple.  Finally it should be noted that the finger guide 3 is held against the plate 2 by any appropriate means, screws 22 for example.

Claims (7)

REVENDICATIONS 1-Clavier à touches mobiles, caractérisé en ce que la face visible de chaque touche est constituée par une cellule à cristaux liquides (7) permettant d'afficher l'information relative à la fonction de la touche. 1-Keyboard with movable keys, characterized in that the visible face of each key is constituted by a liquid crystal cell (7) making it possible to display the information relating to the function of the key. 2-Clavier selon la revendication 1, caractérisé en ce que le symbole d'identification de la touche apparaît en clair sur un fond sombre. 2-Keyboard according to claim 1, characterized in that the identification symbol of the key appears in light on a dark background. 3-Clavier selon l'une quelconque des revendications 1 et 2, caractérisé en ce que la cellule (7) est éclairée, par l'arrière par une diode électroluminescente (18-19). 3-Keyboard according to any one of claims 1 and 2, characterized in that the cell (7) is illuminated from the rear by a light emitting diode (18-19). 4-Clavier selon l'une quelconque des revendications 1 à 3, caractérisé en ce que la cellule (7) est divisée en autant de zones que la touche comporte de fonctions, chaque zone étant éclairée par, au moins, une diode électroluminescente. 4-Keyboard according to any one of claims 1 to 3, characterized in that the cell (7) is divided into as many areas as the key has functions, each area being illuminated by, at least, a light emitting diode. 5-Clavier selon l'une quelconque des revendications 3 et 4, caractérisé en ce que la fréquence du rayonnement de chaque diode est située en dehors de celles des infrarouges. 5-Keyboard according to any one of claims 3 and 4, characterized in that the frequency of radiation of each diode is located outside of those of infrared. 6-Clavier selon l'une quelconque des revendications 1 à 6, caractérisé en ce que chaque touche (6) est constituée par une enveloppe tubulaire présentant à son extrémité supérieure un épaulement interne de réception de la cellule (7). 6-keyboard according to any one of claims 1 to 6, characterized in that each key (6) is constituted by a tubular casing having at its upper end an internal shoulder for receiving the cell (7). 7-Clavier selon la revendication 6, caractérisé en ce que chaque touche présente des cloisons(8-9) s'étendant jusqu'à la face inférieure de la cellule et délimitant, en coopération avec l'enveloppe tubulaire, des zones d'affichage.  7-keyboard according to claim 6, characterized in that each key has partitions (8-9) extending to the underside of the cell and delimiting, in cooperation with the tubular envelope, display areas .
FR9102801A 1991-03-08 1991-03-08 Keyboard with movable keys Pending FR2673761A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR9102801A FR2673761A1 (en) 1991-03-08 1991-03-08 Keyboard with movable keys

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR9102801A FR2673761A1 (en) 1991-03-08 1991-03-08 Keyboard with movable keys

Publications (1)

Publication Number Publication Date
FR2673761A1 true FR2673761A1 (en) 1992-09-11

Family

ID=9410502

Family Applications (1)

Application Number Title Priority Date Filing Date
FR9102801A Pending FR2673761A1 (en) 1991-03-08 1991-03-08 Keyboard with movable keys

Country Status (1)

Country Link
FR (1) FR2673761A1 (en)

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1994024683A1 (en) * 1993-04-22 1994-10-27 Maygay Machines Limited Push-button switches
WO1998001876A1 (en) * 1996-07-03 1998-01-15 Philips Electronics N.V. Keyboard with multifunction keys and apparatus including such a keyboard
EP1727172A1 (en) * 2005-05-27 2006-11-29 Mitac Technology Corp. Keyboard module with light-emitting array and key unit thereof
EP1862880A1 (en) * 2006-05-31 2007-12-05 Research In Motion Limited Pivoting, multi-configuration mobile device with auto change
EP1862883A1 (en) * 2006-05-31 2007-12-05 Research In Motion Limited Keyboard for mobile device
EP2122604A1 (en) * 2007-03-15 2009-11-25 Openpeak Inc. Multi-functional control interface
WO2010014030A1 (en) * 2008-07-31 2010-02-04 Dmitry Nikolaevich Nosov Key (variants) and keyboard
US7953448B2 (en) 2006-05-31 2011-05-31 Research In Motion Limited Keyboard for mobile device
US8072427B2 (en) 2006-05-31 2011-12-06 Research In Motion Limited Pivoting, multi-configuration mobile device

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2904662A (en) * 1957-12-30 1959-09-15 Bell Telephone Labor Inc Circuit controller
EP0171738A1 (en) * 1984-08-07 1986-02-19 OMRON Corporation Switch control device for motor vehicle
EP0232137A2 (en) * 1986-01-30 1987-08-12 Dowty Electronic Components Limited Improvements in or relating to relegendable pushbutton switches
EP0329920A1 (en) * 1988-02-23 1989-08-30 TSCHUDIN & HEID AG Push button switch

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2904662A (en) * 1957-12-30 1959-09-15 Bell Telephone Labor Inc Circuit controller
EP0171738A1 (en) * 1984-08-07 1986-02-19 OMRON Corporation Switch control device for motor vehicle
EP0232137A2 (en) * 1986-01-30 1987-08-12 Dowty Electronic Components Limited Improvements in or relating to relegendable pushbutton switches
EP0329920A1 (en) * 1988-02-23 1989-08-30 TSCHUDIN & HEID AG Push button switch

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1994024683A1 (en) * 1993-04-22 1994-10-27 Maygay Machines Limited Push-button switches
WO1998001876A1 (en) * 1996-07-03 1998-01-15 Philips Electronics N.V. Keyboard with multifunction keys and apparatus including such a keyboard
EP1727172A1 (en) * 2005-05-27 2006-11-29 Mitac Technology Corp. Keyboard module with light-emitting array and key unit thereof
US8698752B2 (en) 2005-11-10 2014-04-15 Id8 Group R2 Studios, Inc. Multi-functional control interface
EP1862880A1 (en) * 2006-05-31 2007-12-05 Research In Motion Limited Pivoting, multi-configuration mobile device with auto change
EP1862883A1 (en) * 2006-05-31 2007-12-05 Research In Motion Limited Keyboard for mobile device
US7953448B2 (en) 2006-05-31 2011-05-31 Research In Motion Limited Keyboard for mobile device
US8072427B2 (en) 2006-05-31 2011-12-06 Research In Motion Limited Pivoting, multi-configuration mobile device
EP2122604A1 (en) * 2007-03-15 2009-11-25 Openpeak Inc. Multi-functional control interface
EP2122604A4 (en) * 2007-03-15 2011-01-19 Openpeak Inc Multi-functional control interface
WO2010014030A1 (en) * 2008-07-31 2010-02-04 Dmitry Nikolaevich Nosov Key (variants) and keyboard

Similar Documents

Publication Publication Date Title
EP1138053B1 (en) Electronic keyboard with luminous keys
US7388167B2 (en) Keyboard structure
EP1720711B1 (en) Display method and device, and display and keyboard therefor
US7340273B2 (en) Portable communication terminal with improved light emission structure
FR2673761A1 (en) Keyboard with movable keys
FR2881853A1 (en) Display device for e.g. organizer, has partially reflecting unit integrated between filters such that message provided by one of filters is visible when LED is off and message provided by another filter is visible when LED is lit
FR2905195A1 (en) CONTROL MODULE, IN PARTICULAR FOR MOTOR VEHICLE
US20040201573A1 (en) Illuminated computer peripheral
EP2045923A1 (en) Device with lit capacitive touch switch and control keypad comprising such a device
US7492423B2 (en) Lighting apparatus for liquid crystal display
FR2886453A1 (en) ELECTRICAL EQUIPMENT WITH LIGHT FUNCTION
EP1655750B1 (en) Push button having an integrated screen with multicolor information display
FR2723454A1 (en) Flat keyboard for radiotelephones, calculators or facsimile machines
FR2734944A3 (en) LIGHT PUSH BUTTON, ESPECIALLY FOR A PUSH BUTTON UNIT OF AN INTERCOM
JP2002231093A (en) Pushbutton device
FR2928223A1 (en) Symbol or message display device for e.g. airplane, has unit modulating characteristic of light source such that rays propagate at interior of substrate, where rays traverse displays for obtaining message carried by wave guide
EP2353061B1 (en) Sealed backlit keypad
EP2473898A1 (en) Display device and method, and keyboard implementing same
JP2006236122A (en) Notebook-sized computer device
KR102238168B1 (en) Improved structure of optical output device for vehicle and method for manufacturing thereof
EP2299462A1 (en) Signalling and/or control electrical device for push button.
FR2616560A1 (en) Arrangement especially for a slim multi-function keyboard
FR2931584A1 (en) Push-switch e.g. sound push-switch, has mobile control unit comprising sound transducer electrically connected by spring integrated electrical connection system, where system is placed between wafer and transducer
EP2198198A1 (en) Lighting device and method
JP6433374B2 (en) Operating device