EP1890310B1 - Clavier pour dispositif électronique portable avec guide de lumière - Google Patents

Clavier pour dispositif électronique portable avec guide de lumière Download PDF

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Publication number
EP1890310B1
EP1890310B1 EP06117416A EP06117416A EP1890310B1 EP 1890310 B1 EP1890310 B1 EP 1890310B1 EP 06117416 A EP06117416 A EP 06117416A EP 06117416 A EP06117416 A EP 06117416A EP 1890310 B1 EP1890310 B1 EP 1890310B1
Authority
EP
European Patent Office
Prior art keywords
keypad
key
supports
base
light guide
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
EP06117416A
Other languages
German (de)
English (en)
Other versions
EP1890310A1 (fr
Inventor
Chao Chen
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.)
BlackBerry Ltd
Original Assignee
Research in Motion Ltd
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
Priority to AT06117416T priority Critical patent/ATE447234T1/de
Priority to EP08165757A priority patent/EP2003669B1/fr
Priority to EP06117416A priority patent/EP1890310B1/fr
Priority to DE602006017269T priority patent/DE602006017269D1/de
Priority to DE602006010062T priority patent/DE602006010062D1/de
Priority to AT08165757T priority patent/ATE483241T1/de
Application filed by Research in Motion Ltd filed Critical Research in Motion Ltd
Priority to CA2594028A priority patent/CA2594028C/fr
Publication of EP1890310A1 publication Critical patent/EP1890310A1/fr
Priority to HK08109083.1A priority patent/HK1113706A1/xx
Priority to HK09105341.6A priority patent/HK1127436A1/xx
Application granted granted Critical
Publication of EP1890310B1 publication Critical patent/EP1890310B1/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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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
    • 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
    • H01H13/84—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 ergonomic functions, e.g. for miniature keyboards; characterised by operational sensory functions, e.g. sound feedback
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H2219/00—Legends
    • H01H2219/036—Light emitting elements
    • H01H2219/04—Attachments; Connections
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H2219/00—Legends
    • H01H2219/054—Optical elements
    • H01H2219/062—Light conductor
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H2221/00—Actuators
    • H01H2221/054—Actuators connected by flexible webs

Definitions

  • the disclosed and claimed concept relates generally to keypads for handheld electronic devices and, more particularly, to a lighted piano-style keypad.
  • handheld electronic devices Numerous types of handheld electronic devices are known. Examples of such handheld electronic devices include, for instance, personal data assistants (PDAs), handheld computers, two-way pagers, cellular telephones, and the like. Many handheld electronic devices also feature a wireless communication capability, although many such handheld electronic devices are stand-alone devices that are functional without communication with other devices.
  • PDAs personal data assistants
  • handheld computers two-way pagers
  • cellular telephones and the like.
  • Many handheld electronic devices also feature a wireless communication capability, although many such handheld electronic devices are stand-alone devices that are functional without communication with other devices.
  • Such handheld electronic devices are generally intended to be portable, and thus are of a relatively compact configuration.
  • Piano-style keypads typically provide keys that have very little space therebetween and derive their name from the keys of a piano, which typically are disposed very closely adjacent one another with an extremely small space therebetween.
  • Piano-style keypads provide relatively greater numbers of usable keys in relatively smaller spaces compared with conventionally-spaced keypads due to the very close spacing of the keys of a piano-style keypad. While such piano-style keypads have been generally effective for their intended purposes, such piano-style keypads have not been without limitation.
  • Piano-style keypads typically comprise a number of key bodies disposed on a resilient web, and further comprise key caps adhered to the key bodies.
  • the web is deflectable to allow a key body to be translated slightly toward a handheld electronic device when a key is being actuated. While the key bodies are typically spaced apart from one another on the web, the key caps that are adhered to the key bodies typically are disposed very close to one another with minimal space therebetween, thus providing the "piano-style" aspect to the keypad.
  • each key body typically must have an exterior surface with at least about fifteen square millimeters of adherable area for adhering of the key caps to the key bodies.
  • the portion of the resilient web that is peripheral to a key body and that is deflectable when a key body is being translated toward the handheld electronic device desirably has a radial length, i.e., a length in a direction pointed away from the key body in the plane of the web, of at least 0.6 millimeters. Such a length has been determined to provide long term reliability while allowing the key bodies to be easily actuated and to provide a desirable tactile response during such actuation.
  • Some previous keypads have provided a light guide and key bodies formed as a single component that is molded in a multi-step process.
  • the light guide would be formed from a light-transmitting material, such as a clear plastic.
  • the light guide would then be positioned in a mold, and uncured resilient material would be poured into the mold in contact with the light guide.
  • the resilient material would cure, thus providing resilient structures and key bodies molded to the light guide.
  • the size of the resilient structures was limited by the size of the light guide. That is, for a given space, the larger the light guide was, the relatively smaller would be the resilient structures and key bodies molded to the light guide.
  • piano-style keypads of a particular size could have only a limited number of keys. It thus would be desirable to provide an improved piano-style keypad that overcomes or at least partially alleviates such limitations.
  • Fig. 1 is an exploded perspective view of an improved keypad in accordance with the disclosed and claimed concept
  • Fig. 1A is a schematic view of an exemplary handheld electronic device incorporating the improved keypad of Fig. 1 ;
  • Fig. 2 is another exploded perspective view of the keypad of Fig. 1 ;
  • Fig. 3 is a perspective view of the keypad
  • Fig. 4 is another perspective view of the keypad
  • Fig. 5 is a perspective view a portion of the keypad
  • Fig. 6 is a sectional view as taken along line 6-6 of Fig. 4 ;
  • Fig. 7 is a sectional view as taken along line 7-7 of Fig. 4 ;
  • Fig. 8 is an enlarged view of the encircled portion of Fig. 7 ;
  • Fig. 9 is a view similar to Fig. 8 , except showing a key of the keypad in an actuated position.
  • An improved keypad 4 is depicted generally, in whole or in part, in Figs. 1 and 2-9 .
  • the improved keypad 4 is a piano-style keypad that can be employed in a handheld electronic device 6, such as is depicted schematically in Fig. 1A .
  • the exemplary handheld electronic device 6 comprises an input apparatus 8, a processor apparatus 10, and an output apparatus 12.
  • the keypad 4 is a component of the input apparatus 8.
  • the processor apparatus 10 is structured to receive input from the input apparatus 8 and to provide output to the output apparatus 12.
  • the keypad 4 comprises a light guide 16 and a key sheet 20.
  • the light guide 16 mounts the key sheet 20 to a substrate 24, such as a printed circuit board of the handheld electric device 6.
  • a substrate 24 such as a printed circuit board of the handheld electric device 6.
  • At least a portion of the key sheet 20 is translucent, as is at least a portion of the light guide 16.
  • the expression "translucent" and variations thereof shall refer broadly to a quality that permits the passage of light and may include a transparent quality wherein light is transmitted without appreciable scattering so that it does not meaningfully alter light waves traveling therethrough.
  • the light guide 16 is configured to transmit light from a light source, such as a number of LEDs 28 on the substrate 24, to the key sheet 20 to provide illumination of the keys 42 ( Fig. 4 ) of the keypad 4.
  • a light source such as a number of LEDs 28 on the substrate 24
  • the expression "a number of' and variations thereof shall refer broadly to any nonzero quantity including a quantity of one.
  • the key sheet 20 comprises a resilient base 32 upon which are disposed a number of key bodies 36.
  • the key sheet 20 additionally includes a number of key caps 40.
  • Each key body 36 has a mounting surface 44 that is substantially planar, for example, and the key caps 40 are adhered to the mounting surfaces 44.
  • the expression "adhered” and variations thereof shall refer broadly to a situation in which two solids are fastened together such as by the use of glue, cement, other adhesive, or through to use of a fusion or other joining process, and between which an adhesive bond or other fusion bond has been created.
  • a key body 36 and a key cap 40 together form a key 42 ( Fig. 4 ) of the keypad 4.
  • the keypad 4 is advantageously configured such that each mounting surface 44 has an adherable area of at least fifteen square millimeters. In the present exemplary embodiment, the mounting surfaces 44 generally each have an adherable area of at least about twenty square millimeters.
  • Each key body 36 has an actuator 48 ( Figs. 2 and 3 ) protruding therefrom opposite the mounting surface 44.
  • Each key body 36 is movable between an unactuated position, such as is depicted generally in Fig. 8 , and an actuated position, such as is depicted generally in Fig. 9 .
  • the actuator 48 engages a dome 52 that is disposed on the substrate 24, and as a result completes an electrical circuit of the handheld electronic device 6.
  • the closing of such a circuit can provide, for example, an input to the processor apparatus 10.
  • the base 32 comprises a web 56 and a leg network 60.
  • the key bodies 36 can generally be said to be disposed on the web 56.
  • the leg network 60 protrudes from the web 56 and is engaged with the substrate 24.
  • the portion of the web 56 that is peripheral to any given key is movable between an undeflected position, such as is depicted generally in Fig. 8 , and a deflected position, such as is depicted generally in Fig. 9 , when the given key body 36 is moved between its unactuated and actuated positions.
  • the portion of the web 56 peripheral to a given key body 36 is in an undeflected position when the key body 36 is in an unactuated position, such as depicted generally in Fig. 8 , and such portion of the web 56 is in a deflected position when the given key body 36 is in an actuated position, such as is depicted generally in Fig. 9 .
  • the leg network 60 comprises a plurality of legs 64 and a plurality of islands 68.
  • the legs 64 extend between the islands and generally each are formed to include a notch 72 that allows the passage of air from the region between a specific key body 36 and the substrate 24 when the specific key body 36 is moved toward the actuated position.
  • the islands 68 generally each have a hole 76 formed therein that serves as a receptacle for a support structure of the light guide 16.
  • the islands 68 are of a cross section in a plane transverse to the plane of the substrate 24 that is relatively larger than a similarly oriented cross sectional area of a leg 64.
  • the islands 68 advantageously resist the deformation of the portions of the web 56 adjacent a particular key body 36 when the particular key body 36 is moved between the unactuated and actuated positions.
  • the light guide 16 includes a frame 78, a number of supports 80, and a number of retention members 88.
  • the frame 78 has a number of openings 90 formed therein.
  • the key bodies 36 are disposed within the openings 90.
  • the supports 80 are in the form of pins that protrude from the frame 78 in a direction indicated by the axis 92 in Fig. 2 .
  • the supports are receivable in the holes 76, as indicated above, to provide support to the key sheet 20 and to resist movement of the key sheet 20 in directions transverse to the axis 92.
  • the supports 80 in the exemplary depicted embodiment, as can be seen in Fig. 2 are of two types. Specifically, the supports 80 include a number of first supports 82 that are of a generally cylindrical configuration and a number of second supports 84 that are generally of a frusto-conic, i.e., truncated cone, configuration.
  • the first supports 82 are receivable with an interference fit in the holes 76.
  • the second supports 84 are receivable in the hole 76 with a generally clearance fit.
  • the first supports 82 provide a relatively greater degree of support to the key sheet 20 than the second supports 84, although the number of first supports 82 is limited in order to limit the force required to assemble the keypad 4.
  • Each retention member 88 comprises a shank 86 protruding from the frame 78 and a latch 94 disposed at a free end of the shank 86.
  • the light guide 16 additionally has a number of recesses 96 formed therein and within which the light sources 28 are disposed when the keypad 4 is in an assembled condition, such as is depicted generally in Figs. 4 and 6 .
  • the key caps 40 are closely spaced, meaning that the space between adjacent key caps 40 is very small when compared with the dimensions of each key cap 40, and typically will be no more than about ten percent of a given dimension of a key cap 40, for example, it being noted that the spacing between the key caps 40 depicted in Fig. 4 is greatly exaggerated.
  • the latches 94 engage an underside of the substrate 24, i.e., a surface of the substrate 24 opposite that on which the domes 52 are disposed.
  • the engagement of the latches 94 of the light guide 16 with the substrate 24 retains the key sheet 20 mounted to the substrate 24 and disposed generally between the frame 78 and the substrate 24. More particularly, the base 32 is generally interposed between the frame 78 and the substrate 24.
  • the supports 80 of the light guide 16 received in the holes 76 provide support to the key sheet 20 and resist movement of the key sheet 20 in directions transverse to the axis 92. The light guide 16 thus retains the key sheet 20 on the substrate 24 and transmits light from the light sources 28 to the key sheet 20.
  • the portions of the web 56 that are peripheral to a particular key body 36 have a radial distance between the key body 36 and the leg network 60 that is at least 0.6 millimeters, as is indicated by the dimension 98.
  • Such a dimension 98 allows for easy actuation of the key bodies 36, desirable tactile feedback to the user, and long-term reliability.
  • leg network 60 is disposed generally between the web 56 and the substrate 24.
  • frame 78 is disposed generally between the key caps 40 and the web 56.
  • the key bodies 36 are configured such that the mounting surface 44 thereof, such as are depicted generally in Fig. 5 , generally each have gross dimensions of roughly 4.0 millimeters by 5.0 millimeters, thereby enabling the mounting surface 44 to have an adherable area of about 20.0 millimeters.
  • the supports 80 engage the web 56 and also engage the substrate 24.
  • the improved keypad 4 is thus configured in a fashion whereby the light guide generally does not serve as a limiting factor in the design of the keypad, which permits a relatively large number of keys 42 to be provided in a relatively small area.
  • the keypad 4 could be a full QWERTY, QWERTZ, AZERTY, etc., keypad on a handheld electronic device, such as the handheld electronic device 6, without the handheld electronic device being of an undesirably large size.
  • the improved keypad 4 additionally provides a key sheet 20 that is supported by a light guide 16, which resists unintended movement or slumping of the key sheet 20, and which further contributes to the ability of the keypad 4 to provide a large number of keys 42.
  • the islands 68 advantageously resist unintended closing of circuits of the handheld electronic device 6, and thus resists unintended input to the processor apparatus 10, by mechanically isolating a portion of the web 56 from moving toward its deflected position when an adjacent key body 36 is moved to its actuated position.

Landscapes

  • Push-Button Switches (AREA)
  • Auxiliary Devices For Music (AREA)
  • Telephone Set Structure (AREA)
  • Input From Keyboards Or The Like (AREA)

Claims (20)

  1. Clavier (4) pour un dispositif électronique (6) tenu à la main qui comporte une source de lumière (28), le clavier comportant :
    une feuille (20) de touches comportant une base (32) et un certain nombre de corps de touche (36), au moins certains des corps de touche étant disposés chacun sur la base et étant mobiles entre une position non actionnée et une position actionnée, le corps de touche dans la position actionnée étant structuré de façon à fermer un circuit du dispositif électronique tenu à la main, au moins une partie de la feuille de touches étant translucide ; et
    un guide (16) de lumière comportant un cadre (78) et un certain nombre de supports (80), caractérisé en ce qu'au moins une partie du cadre est disposée de façon à être adjacente à au moins une partie de la base, les supports s'étendant à l'écart du cadre dans une direction commune (92), au moins certains des supports engagent la base afin de résister à un mouvement de la base dans une direction transversale à la direction commune, au moins une partie du guide de lumière étant translucide et étant structurée de façon à transmettre de la lumière entre la source de lumière et la feuille de touches.
  2. Clavier selon la revendication 1, dans lequel la feuille de touches comporte un certain nombre de logements (76), au moins certains des supports étant reçus chacun dans un logement.
  3. Clavier selon la revendication 2, dans lequel les logements sont des trous formés dans la base, et dans lequel les supports sont des premiers supports (82) qui sont d'une configuration cylindrique et des seconds supports (84) qui sont d'une configuration tronconique, qui font saillie du cadre et sont reçus dans les trous.
  4. Clavier selon la revendication 3, dans lequel au moins certains des premiers supports (82) ont chacun un ajustement serré avec un trou.
  5. Clavier selon la revendication 1, dans lequel la base comporte un voile (56) et un réseau (60) de pieds, le réseau de pieds faisant saillie du voile et étant structuré de façon à engager un substrat (24) du dispositif électronique tenu à la main, une partie du voile située à la périphérie d'un corps de touche particulier étant mobile entre une position non fléchie et une position fléchie, la partie du voile étant dans la position non fléchie lorsque le corps de touche particulier est dans la position non actionnée, la partie du voile étant dans la position fléchie lorsque le corps de touche particulier est dans la position actionnée.
  6. Clavier selon la revendication 5, dans lequel le réseau de pieds comporte de multiples îlots (68) structurés de façon à engager le substrat, les îlots étant structurés de façon à résister à un mouvement d'une partie du voile située à la périphérie d'un corps de touche vers sa position fléchie lorsqu'une partie du voile située à la périphérie d'un corps de touche adjacent se déplace vers sa position fléchie.
  7. Clavier selon la revendication 6, dans lequel au moins certains des îlots (68) ont chacun un trou (76) formé en lui, et dans lequel les supports sont des premiers supports (82) qui sont d'une configuration cylindrique et des seconds supports (84) qui sont d'une configuration tronconique qui font saillie du cadre et sont reçus dans les trous, au moins certains des corps de touche étant mobiles suivant une direction (92) entre les positions non actionnée et actionnée, et dans lequel les supports font saillie le long de la direction depuis le cadre, les supports résistant à un mouvement des îlots transversal à la direction.
  8. Clavier selon la revendication 1, dans lequel la feuille de touches comporte en outre un certain nombre de capuchons de touche (40), au moins certains des capuchons de touche étant collés à un corps de touche.
  9. Clavier selon la revendication 8, dans lequel le cadre du guide de lumière présente un certain nombre d'ouvertures (90) formées en lui, au moins certains des corps de touche étant disposés chacun dans une ouverture.
  10. Clavier selon la revendication 8, dans lequel au moins une partie du cadre est disposée entre la base et les capuchons de touche.
  11. Clavier selon l'une quelconque des revendications 5 ou 8 à 10, dans lequel :
    au moins une partie du guide de lumière s'étend au-dessus d'au moins une partie de la base.
  12. Clavier selon la revendication 11 lorsqu'elle dépend de la revendication 5, dans lequel au moins une partie du voile est disposée entre le réseau de pieds et au moins une partie du guide de lumière.
  13. Clavier selon la revendication 12, dans lequel la partie du voile située à la périphérie du corps de touche particulier s'étend entre le corps de touche particulier et au moins une partie du réseau de pieds.
  14. Clavier selon la revendication 13, dans lequel la partie du voile qui est mobile entre les positions non fléchie et fléchie a au moins 0,6 millimètre entre le corps de touche particulier et la partie au moins du réseau de pieds.
  15. Clavier selon la revendication 14, dans lequel les corps de touches ont chacun une surface de montage (44), au moins certains des capuchons de touche étant collés chacun à la surface de montage d'un corps de touches, chaque surface de montage ayant une aire d'au moins 15 millimètres carrés.
  16. Clavier selon la revendication 14, dans lequel les surfaces de montage sont sensiblement planes.
  17. Clavier selon l'une quelconque des revendications 8 à 10, dans lequel :
    le clavier comporte en outre un substrat (24) ;
    le guide de lumière comporte un certain nombre d'éléments de retenue (88), certains au moins des éléments de retenue étant engagés chacun avec le substrat ; et
    au moins une partie de la feuille de touches est disposée entre au moins une partie du guide de lumière et au moins une partie du substrat.
  18. Clavier selon la revendication 17, dans lequel certains au moins des éléments de retenue comportent chacun une griffe (94) qui est engagée avec le substrat.
  19. Clavier selon la revendication 17, dans lequel les éléments de retenue s'étendent à l'écart du cadre dans la direction commune.
  20. Clavier selon la revendication 19, dans lequel la base présente un certain nombre de trous (76) formés en elle, et dans lequel les supports sont des premiers supports (82) qui sont d'une configuration cylindrique et des seconds supports (84) qui sont d'une configuration tronconique reçus dans les trous, les supports résistant à un mouvement de la base dans une direction transversale à la direction commune.
EP06117416A 2006-07-18 2006-07-18 Clavier pour dispositif électronique portable avec guide de lumière Active EP1890310B1 (fr)

Priority Applications (9)

Application Number Priority Date Filing Date Title
EP06117416A EP1890310B1 (fr) 2006-07-18 2006-07-18 Clavier pour dispositif électronique portable avec guide de lumière
DE602006017269T DE602006017269D1 (de) 2006-07-18 2006-07-18 Klavierähnliche Tastatur mit einer Lichtführung
DE602006010062T DE602006010062D1 (de) 2006-07-18 2006-07-18 Tastatur für tragbares elektronisches Gerät mit einem Lichtleiter
AT08165757T ATE483241T1 (de) 2006-07-18 2006-07-18 Klavierähnliche tastatur mit einer lichtführung
AT06117416T ATE447234T1 (de) 2006-07-18 2006-07-18 Tastatur für tragbares elektronisches gerät mit einem lichtleiter
EP08165757A EP2003669B1 (fr) 2006-07-18 2006-07-18 Clavier de type piano utilisant un guide lumineux
CA2594028A CA2594028C (fr) 2006-07-18 2007-07-18 Clavier du genre piano faisant appel a un guide lumineux
HK08109083.1A HK1113706A1 (en) 2006-07-18 2008-08-15 Keypad for a handheld electronic device with a light guide
HK09105341.6A HK1127436A1 (en) 2006-07-18 2009-06-15 Keypad for a handheld electronic device with a light guide

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP06117416A EP1890310B1 (fr) 2006-07-18 2006-07-18 Clavier pour dispositif électronique portable avec guide de lumière

Related Child Applications (1)

Application Number Title Priority Date Filing Date
EP08165757A Division EP2003669B1 (fr) 2006-07-18 2006-07-18 Clavier de type piano utilisant un guide lumineux

Publications (2)

Publication Number Publication Date
EP1890310A1 EP1890310A1 (fr) 2008-02-20
EP1890310B1 true EP1890310B1 (fr) 2009-10-28

Family

ID=37116223

Family Applications (2)

Application Number Title Priority Date Filing Date
EP08165757A Active EP2003669B1 (fr) 2006-07-18 2006-07-18 Clavier de type piano utilisant un guide lumineux
EP06117416A Active EP1890310B1 (fr) 2006-07-18 2006-07-18 Clavier pour dispositif électronique portable avec guide de lumière

Family Applications Before (1)

Application Number Title Priority Date Filing Date
EP08165757A Active EP2003669B1 (fr) 2006-07-18 2006-07-18 Clavier de type piano utilisant un guide lumineux

Country Status (5)

Country Link
EP (2) EP2003669B1 (fr)
AT (2) ATE447234T1 (fr)
CA (1) CA2594028C (fr)
DE (2) DE602006010062D1 (fr)
HK (2) HK1113706A1 (fr)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8188399B2 (en) 2009-10-08 2012-05-29 Avago Technologies Ecbu Ip (Singapore) Pte. Ltd. Fitting a light guide sheet to a keypad using protrusions
MY189395A (en) * 2018-10-05 2022-02-09 Daikin Res & Development Malaysia Sdn Bhd A light display assembly

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4163138A (en) * 1978-03-17 1979-07-31 Bowmar Instrument Corporation Flush lighted flat keyboard assembly
JPS5686723U (fr) * 1979-12-07 1981-07-11
US4349705A (en) * 1981-05-06 1982-09-14 Northern Telecom Limited Lighted telephone dial
JP2710181B2 (ja) * 1992-01-28 1998-02-10 日本電気株式会社 照光式キートップの構造

Also Published As

Publication number Publication date
DE602006010062D1 (de) 2009-12-10
EP1890310A1 (fr) 2008-02-20
HK1113706A1 (en) 2008-10-10
EP2003669B1 (fr) 2010-09-29
CA2594028A1 (fr) 2008-01-18
HK1127436A1 (en) 2009-09-25
DE602006017269D1 (de) 2010-11-11
ATE447234T1 (de) 2009-11-15
CA2594028C (fr) 2011-06-21
ATE483241T1 (de) 2010-10-15
EP2003669A1 (fr) 2008-12-17

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