WO2010119304A1 - Procédé et appareil de création d'un bouton-poussoir lumineux - Google Patents

Procédé et appareil de création d'un bouton-poussoir lumineux Download PDF

Info

Publication number
WO2010119304A1
WO2010119304A1 PCT/IB2009/005157 IB2009005157W WO2010119304A1 WO 2010119304 A1 WO2010119304 A1 WO 2010119304A1 IB 2009005157 W IB2009005157 W IB 2009005157W WO 2010119304 A1 WO2010119304 A1 WO 2010119304A1
Authority
WO
WIPO (PCT)
Prior art keywords
key
key portion
bridges
translucent resin
metal
Prior art date
Application number
PCT/IB2009/005157
Other languages
English (en)
Inventor
Kristopher Poh Ming Laurent
Tim Porter
Kevin Duffy
Gareth Osborne
Original Assignee
Nokia Corporation
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 Nokia Corporation filed Critical Nokia Corporation
Priority to PCT/IB2009/005157 priority Critical patent/WO2010119304A1/fr
Publication of WO2010119304A1 publication Critical patent/WO2010119304A1/fr

Links

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
    • H01H13/702—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 with contacts carried by or formed from layers in a multilayer structure, e.g. membrane switches
    • H01H13/705—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 with contacts carried by or formed from layers in a multilayer structure, e.g. membrane switches characterised by construction, mounting or arrangement of operating parts, e.g. push-buttons or keys
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H9/00—Details of switching devices, not covered by groups H01H1/00 - H01H7/00
    • H01H9/18—Distinguishing marks on switches, e.g. for indicating switch location in the dark; Adaptation of switches to receive distinguishing marks
    • H01H2009/187—Distinguishing marks on switches, e.g. for indicating switch location in the dark; Adaptation of switches to receive distinguishing marks having symbols engraved or printed by laser
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H2209/00—Layers
    • H01H2209/068—Properties of the membrane
    • H01H2209/07—Properties of the membrane metallic

Definitions

  • the present application relates generally to creating an illuminated key.
  • An electronic device may have a user interface to use applications. Further, there may be different types of user interfaces. As such, the electronic device facilitates use for different types of user interfaces.
  • an apparatus comprising a key comprising a first key portion, a second key portion, and a third key portion.
  • the first key portion comprises a first material.
  • the second key portion comprising a translucent material where the translucent material different than the first material, the translucent material supports the third key portion.
  • a method comprising machining at least one key to remove material and create one or more bridges; filling the at least one machined key with a translucent resin to replace the material; and removing the one or more bridges.
  • FIGURE 1 is a block diagram depicting an electronic device operating in accordance with an example embodiment of the invention
  • FIGURE 2A is a block diagram depicting a keypad in accordance with an example embodiment on the invention.
  • FIGURE 2B is a block diagram depicting a close-up view of the keypad of FIGURE 2A comprising machined keys in accordance with an example embodiment on the invention
  • FIGURE 3 is a block diagram depicting keys and one or more bridges on the keypad of FIGURE 2B in accordance with an example embodiment on the invention
  • FIGURE 4A is a block diagram depicting a bottom view of a key in accordance with an example embodiment on the invention
  • FIGURE 4B is a block diagram depicting a top view of a key in accordance with an example embodiment on the invention
  • FIGURE 5 is a block diagram depicting keys on a keypad in accordance with an example embodiment on the invention.
  • FIGURE 6A is a block diagram depicting a top view of a keypad with one or more keys in accordance with an example embodiment on the invention
  • FIGURE 6B is a block diagram depicting a bottom view of a keypad with one or more keys in accordance with an example embodiment on the invention.
  • FIGURE 7 is a flow diagram depicting an example method for creating a key in accordance with an example embodiment of the invention.
  • FIGURES 1 through 7 of the drawings An example embodiment of the present invention and its potential advantages are best understood by referring to FIGURES 1 through 7 of the drawings.
  • FIGURE 1 is a block diagram depicting an electronic device 100 operating in accordance with an example embodiment of the invention.
  • an electronic device 100 comprises at least one antenna 12 in communication with a transmitter 14, a receiver 16, and/or the like.
  • the electronic device 100 may further comprise a processor 20 or other processing component.
  • the processor 20 may provide at least one signal to the transmitter 14 and may receive at least one signal from the receiver 16.
  • the electronic device 100 may also comprise a user interface comprising one or more input or output devices, such as a conventional earphone or speaker 24, a ringer 22, a microphone 26, a display 28, and/or the like.
  • the one or more output devices of the user interface may be coupled to the processor 20.
  • the display 28 is a touch screen, liquid crystal display, and/or the like.
  • the electronic device 100 may also comprise a battery 34, such as a vibrating battery pack, for powering various circuits to operate the electronic device 100. Further, the vibrating battery pack may also provide mechanical vibration as a detectable output. In an embodiment, the electronic device 100 may further comprise a W
  • the UlM 38 may be a memory device comprising a processor.
  • the UIM 38 may comprise, for example, a subscriber identity module (SIM), a universal integrated circuit card (UICC), a universal subscriber identity module (USlM), a removable user identity module (R-UIM), and/or the like.
  • SIM subscriber identity module
  • UICC universal integrated circuit card
  • USlM universal subscriber identity module
  • R-UIM removable user identity module
  • the UEvI 38 may store one or more information elements related to a subscriber, such as a mobile subscriber.
  • the electronic device 100 may comprise memory.
  • the electronic device 100 may comprise volatile memory 40, such as random access memory (RAM).
  • Volatile memory 40 may comprise a cache area for the temporary storage of data.
  • the electronic device 100 may also comprise nonvolatile memory 42, which may be embedded and/or may be removable.
  • the nonvolatile memory 42 may also comprise an electrically erasable programmable read only memory (EEPROM), flash memory, and/or the like.
  • the processor 20 may comprise memory.
  • the processor 20 may comprise volatile memory 40, non-volatile memory 42, and/or the like.
  • the electronic device 100 may use memory to store any of a number of pieces of information and/or data to implement one or more features of the electronic device 100.
  • the memory may comprise an identifier, such as international mobile equipment identification (BvIEI) code, capable of uniquely identifying the electronic device 100.
  • the memory may store one or more instructions for determining cellular identification information based at least in part on the identifier.
  • the processor 20 using the stored instructions, may determine an identity, e.g., cell id identity or cell id information, of a communication with the electronic device 100.
  • the processor 20 of the electronic device 100 may comprise circuitry for implementing audio feature, logic features, and/or the like.
  • the processor 20 may comprise a digital signal processor device, a microprocessor device, a digital to analog converter, other support circuits, and/or the like.
  • control and signal processing features of the processor 20 may be allocated between devices, such as the devices describe above, according to their respective capabilities.
  • the processor 20 may also comprise an internal voice coder and/or an internal data modem.
  • the processor 20 may comprise features to operate one or more software programs.
  • the processor 20 may be capable of operating a software program for connectivity, such as a conventional Internet browser.
  • the connectivity program may allow the electronic device 100 to transmit and receive Internet content, such as location-based content, other web page content, and/or the like.
  • the electronic device 100 may use a wireless application protocol (WAP), hypertext transfer protocol (HTTP), file transfer protocol (FTP) and/or the like to transmit and/or receive the Internet content.
  • WAP wireless application protocol
  • HTTP hypertext transfer protocol
  • FTP file transfer protocol
  • the electronic device 100 may be capable of operating in accordance with any of a number of a first generation communication protocol, a second generation communication protocol, a third generation communication protocol, a fourth generation communication protocol, and/or the like.
  • the electronic device 100 may be capable of operating in accordance with second generation (2G) communication protocols IS-136, time division multiple access (TDMA), global system for mobile communication (GSM), IS-95 code division multiple access (CDMA), and/or the like.
  • 2G second generation
  • TDMA time division multiple access
  • GSM global system for mobile communication
  • CDMA code division multiple access
  • third-generation (3G) communication protocols such as Universal Mobile Telecommunications System (UMTS), CDMA2000, wideband CDMA (WCDMA), time division-synchronous CDMA (TD-SCDMA), and/or the like.
  • the electronic device 100 may also be capable of operating in accordance with 3.9 generation (3.9G) wireless communication protocols, such as Evolved Universal Terrestrial Radio Access Network (E-UTRAN) or the like, or wireless communication projects, such as long term evolution (LTE) or the like. Still further, the electronic device 100 may be capable of operating in accordance with fourth generation (4G) communication protocols.
  • 3.9G 3.9 generation
  • E-UTRAN Evolved Universal Terrestrial Radio Access Network
  • LTE long term evolution
  • 4G fourth generation
  • the electronic device 100 may be capable of operating in accordance with a non-cellular communication mechanism.
  • the electronic device 100 may be capable of communication in a wireless local area network (WLAN), other communication networks, and/or the like.
  • the electronic device 100 may communicate in accordance with techniques, such as radio frequency (RF), infrared (IrDA), any of a number of WLAN techniques.
  • RF radio frequency
  • IrDA infrared
  • the electronic device 100 may communicate using one or more of the following WLAN techniques: IEEE 802.11, e.g., 802.11a, 802.11b, 802.1 Ig, 802.1 In, and/or the like.
  • the electronic device 100 may also communicate, via a world interoperability, to use a microwave access (WiMAX) technique, such as IEEE 802.16, and/or a wireless personal area network (WPAN) technique, such as IEEE 802.15, BlueTooth (BT), ultra wideband (UWB), and/or the like.
  • WiMAX microwave access
  • WPAN wireless personal area network
  • BT BlueTooth
  • UWB ultra wideband
  • the signals comprises signaling information in accordance with the air interface standard of the applicable cellular system, user speech, received data, user generated data, and/or the like.
  • the electronic device 100 may be capable of operating with one or more air interface standards, communication protocols, modulation types, access types, and/or the like.
  • the electronic device 100 is merely illustrative of one type of electronic device that would benefit from embodiments of the invention and, therefore, should not be taken to limit the scope of embodiments of the invention. While embodiments of the electronic device 100 are illustrated and will be hereinafter described for purposes of example, other types of electronic devices, such as a portable digital assistant (PDA), a pager, a mobile television, a gaming device, a camera, a video recorder, an audio player, a video player, a radio, a mobile telephone, a traditional computer, a portable computer device, a global positioning system (GPS) device, a GPS navigation device, a GPS system, a mobile computer, a browsing device, an electronic book reader, a combination thereof, and/or the like, may be used.
  • PDA portable digital assistant
  • GPS global positioning system
  • FIGURE 2A is a block diagram depicting a keypad in accordance with an example embodiment on the invention.
  • a keypad 205 comprises one or more keys 210a-d.
  • the one or more keys 210a-d may be molded together as a single to form the keypad 205.
  • the one or more keys 210a-d are created with a material, which is molded, such as a metal plate, to form the keypad 205.
  • the keypad 205 may be created using metal injection molding (MIM), forged, cast, and/or the like.
  • metal injection molding or is a manufacturing process which combines the versatility of plastic injection molding with the strength and integrity of machined, pressed or otherwise manufactured small, complex, metal parts.
  • MM combines fine metal powders with plastic binders which allow the metal to be injected into a mold using equipment similar to standard plastic injection molding machines. After the part is molded and before the binders are removed, the part is referred to as a 'green part'. The binders are removed with solvents and thermal processes. The resultant metal part is sintered at temperatures great enough to bind the particles but not melt the metal.
  • the products of metal injection molding are up to 98% as dense as wrought iron and used in a broad range of applications, such as keypad 205.
  • the one or more keys 210a-d comprise a material, which is at least one of the following: a metal, a precious stone, a precious metal, a ceramic, a combination thereof, and/or the like.
  • the metal may be stainless steel, aluminum, titanium, gold, a combination thereof, and/or the like.
  • the keypad 205 may be located on an electronic device, such as electronic device 100.
  • FIGURE 2B is a block diagram depicting a close-up view of the keypad of FIGURE 2A comprising machined keys in accordance with an example embodiment on the invention.
  • the keypad 205 comprises a key 265.
  • the key 265 comprises a first key portion 255 comprising a material.
  • the first key portion 255 may be an area without an alphanumeric, numeric, symbol, and/or the like.
  • the key 265 further comprises a second key portion 260 comprising the material.
  • the second key portion 260 may be used to display an alphanumeric, numeric, symbol, and/or the like.
  • the material comprises at least one of the following: a metal, a precious stone, a precious metal, a ceramic, a combination thereof, and/or the like.
  • the second key portion 260 is capable of receiving a machining instrument so at to remove the material.
  • FIGURE 3 is a block diagram depicting keys and one or more bridges 305, 310 on the keypad of FIGURE 2B in accordance with an example embodiment on the invention.
  • the keypad 205 comprises one or more keys, such as key 315.
  • the key 315 comprises a first key portion 320, and second key portion key 325, and a third key portion 328.
  • the first key portion 320 comprises a material.
  • the material is a translucent resin.
  • the second key portion 325 comprises the material.
  • the second key portion 325 is machined to the remove the material to outline an alphanumeric, numeric, symbol and/or the like.
  • the second key portion 325 is machined to create one or more bridges 310.
  • the material such as a translucent resin, supports the third key portion 328.
  • the translucent material fully supports the third key portion.
  • an illumination may pass through the third key portion 328 without any interference from, for example, a connector between the first key portion 320 and the third key portion 328.
  • the second key portion 325 is machined using a laser for laser cutting.
  • laser cutting uses a laser programmed by a server to cut materials, which is used in the production line and is typically used for industrial manufacturing applications, such as creating keys on keypad 205.
  • laser cutting directs the output of a laser at the material to be cut. The laser melts, burns, vaporizes away, and/or the like, the material. The laser creates an edge with a high quality surface finish.
  • the laser uses a laser beam.
  • the laser beam stimulates a lasing material by electrical discharges or using lamps within a container.
  • the beam is reflected internally via a partial mirror, for the beam to achieve sufficient energy to escape as a stream of monochromatic coherent light.
  • the coherent light then passes through a lens that focuses the light into a highly intensified beam generally less than about 0.0125 inches in diameter. Based at least in part on material thickness, widths as small as about 0.004 inches are possible.
  • a pierce is typically made before the cut. Piercing usually involves a high power pulsed laser beam which makes a hole in the material.
  • laser cutting there are many different techniques of laser cutting may be employed based at least in part on the material type. Some example techniques may include vaporization, melt and blow, melt blow and burn, thermal stress cracking, scribing, cold cutting, burning stabilized, and/or the like.
  • the first key portion 320 comprises metal, which is about 5 millimeters thick.
  • the second key portion 325 comprises metal, which is about 5 millimeters thick.
  • a laser cuts or otherwise removes a portion of the about 5 millimeters of metal from the second key portion 325 creating a partial outline of, for example, a letter.
  • the laser cuts about 4 millimeters of the about 5 millimeters from the second key portion 325 of the key 315 thereby creating one or more bridges 310, e.g., the remaining metal, e.g., about 1 millimeter. That is, the first and second key portion 325 is laser cut to outline the letter "A" with one or more bridges 310.
  • the second key portion 325 is capable of receiving a translucent resin where material is removed as will be apparent from example embodiments.
  • the second key portion 325 is machined using a metal cutting machine, such as a metal lathe, a mill, a magnetic based drill, other portable metal working tools, and/or the like.
  • a metal lathe or metalworking lathe is a large class of lathes designed for precisely machining materials, such as metal. The metal lathe removes material from a rotating work piece via the movements of various cutting tools, such as tool bits and drill bits.
  • the metal lathe machines under the control of a server or an electronic device.
  • FIGURE 4A is a block diagram depicting a bottom view of a key 400 on the keypad of FIGURE 3 in accordance with an example embodiment on the invention.
  • the key 400 comprises a first key portion 425 and a second key portion 405.
  • the first key portion comprises a first material, such as a metal.
  • a second key portion 405 is capable of receiving a translucent resin.
  • the translucent resin may be inserted in an area of the second key portion 405 where the material has been removed.
  • the second key portion 405 receives a translucent resin thereby filling the portion with the removed material.
  • the translucent resin may be inserted into the second key portion 405 using known techniques.
  • the translucent resin is at least one of the following: an epoxy, an ultraviolet cure resin, and/or the like.
  • a machining instrument such as a metal lathe, a laser, and/or the like, removes the one or more bridges 410 from the second key portion 405 from the bottom of the key 400.
  • the one or more bridges 410 may be removed from the reverse side of the second key portion 405.
  • an operator machines the one or more bridges 410 from the opposite side as the translucent resin is inserted.
  • a first key portion e.g., surrounding the alphanumeric, numeric, symbol, and/or the like, and the second key portion are supported by the translucent resin.
  • FIGURE 4B is a block diagram depicting a top view of a key 400 on the keypad of FIGURE 3 in accordance with an example embodiment on the invention.
  • the key 400 shows the one or more bridges 410and translucent resin 405.
  • a machining instrument such as a metal lathe, a laser, and/or the like, removes the one or more bridges 410 from the second key portion 405 from the top.
  • a first key portion e.g., surrounding the alphanumeric, numeric, symbol, and/or the like, and the second key portion are supported by the translucent resin.
  • a possible technical effect of one or more of the example embodiments disclosed herein is a first key portion and a second being supported by a translucent resin.
  • FIGURE 5 is a block diagram depicting keys 505, 510 on a keypad 500 in accordance with an example embodiment on the invention.
  • the keys 505, 510 are supported by a translucent resin.
  • a polisher and/or buffer may be employed to polish the keys 505, 510.
  • a polisher and/or buffer smoothes a work piece's surface, such as a keypad surface, using an abrasive and a work wheel.
  • polishing is a process that uses an abrasive glued to work wheel.
  • a buffer uses a loose abrasive applied to the work wheel.
  • the keypad 500 at least the following benefits are obtained: appearance is enhanced, prevent contamination, removed oxidation, creates a reflective surface, and/or the like. It should be understood that the removal of oxidization, e.g., tarnish, from metal is accomplished using a metal polish or tarnish remover. In an embodiment, to prevent further unwanted oxidization, polished metal surfaces may be coated with a wax, oil or lacquer. In this way, the polisher and/or buffer removes any imperfections from the machining and translucent resin insertion.
  • FIGURE 6 A is a block diagram depicting a top view of a keypad 600 with one or more keys in accordance with an example embodiment on the invention.
  • FIGURE 6B is a block diagram depicting a bottom view of a keypad 600 with one or more keys in accordance with an example embodiment on the invention.
  • the top view and bottom view of keypad 600 comprise an alphanumeric, a numeric, a symbol, and/or the like on a second key portion, where the alphanumeric, numeric, symbol, and/or the like is illuminated.
  • the keypad 600 is designed to allow various colors to pass through a resin in one or more keys on the keypad 600.
  • FIGURE 7 is a flow diagram depicting an example method 700 for creating a key in accordance with an example embodiment of the invention.
  • Example method 700 may be performed by an electronic device, such as electronic device 100 of FIGURE 1.
  • At 705 at least one key is machined to remove material and create one or more bridges.
  • at least one key such as second key portion 325 of FIGURE 3, is machined to the remove the material to outline an alphanumeric, numeric, symbol and/or the like, to create one or more bridges.
  • a machining instrument creates one or more bridges 310 on the second key portion 325 by leaving a portion of the material.
  • the machining instrument is at least one of the following: a drill or a laser.
  • the at least one machined key is filled with a translucent resin to replace the material.
  • a key portion such as second key portion 405 of FIGURE 4A, is capable of receiving a translucent resin.
  • the translucent resin may be inserted in an area of the key portion where the material has been removed.
  • the key portion receives a translucent resin thereby filling the portion with the removed material.
  • the translucent resin may be inserted into the key portion using known techniques.
  • the translucent resin is at least one of the following: an epoxy, an ultraviolet cure resin, and/or the like.
  • the one or more bridges are removed.
  • a machining instrument such as a metal lathe, a laser, and/or the like, removes the one or more bridges, such as the one or more bridges 410 of FIGURE 4A, from a key portion from a bottom of a key.
  • an operator machines the one or more bridges.
  • a technical effect of one or more of the example embodiments disclosed herein may be an alphanumeric, a numeric, or a symbol on a key is illuminated.
  • Another possible technical effect of one or more of the example embodiments disclosed herein may be a first key portion and a second being supported by a translucent resin.
  • Embodiments of the present invention may be implemented in software, hardware, application logic or a combination of software, hardware and application logic.
  • the software, application logic and/or hardware may reside on a server or an electronic device. If desired, part of the software, application logic and/or hardware may reside on a server, and part of the software, application logic and/or hardware may reside on an electronic device.
  • the application logic, software or an instruction set is preferably maintained on any one of various conventional computer-readable media.
  • a "computer-readable medium" may be any media or means that can contain, store, communicate, propagate or transport the instructions for use by or in connection with an instruction execution system, apparatus, or device.
  • the application logic, software or an instruction set is maintained on any one of various conventional computer-readable media.
  • a "computer-readable medium” may be any media or means that can contain, store, communicate, propagate or transport the instructions for use by or in connection with an instruction execution system, apparatus, or device.
  • a computer-readable medium may comprise a computer-readable storage medium that may be any media or means that can contain or store the instructions for use by or in connection with an instruction execution system, apparatus, or device.
  • the different functions discussed herein may be performed in a different order and/or concurrently with each other.
  • one or more of the above-described functions may be optional or may be combined.

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  • Input From Keyboards Or The Like (AREA)

Abstract

Selon un mode de réalisation donné à titre d'exemple, la présente invention porte sur un appareil qui comprend un bouton-poussoir comprenant une première partie de bouton-poussoir, une deuxième partie de bouton-poussoir et une troisième partie de bouton-poussoir. La première partie de bouton-poussoir comprend un premier matériau. La deuxième partie de bouton-poussoir comprend un matériau translucide, le matériau translucide étant différent du premier matériau, le matériau translucide supportant la troisième partie de bouton-poussoir.
PCT/IB2009/005157 2009-04-15 2009-04-15 Procédé et appareil de création d'un bouton-poussoir lumineux WO2010119304A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PCT/IB2009/005157 WO2010119304A1 (fr) 2009-04-15 2009-04-15 Procédé et appareil de création d'un bouton-poussoir lumineux

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/IB2009/005157 WO2010119304A1 (fr) 2009-04-15 2009-04-15 Procédé et appareil de création d'un bouton-poussoir lumineux

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WO2010119304A1 true WO2010119304A1 (fr) 2010-10-21

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2589480A1 (fr) * 2011-11-02 2013-05-08 Research In Motion Limited Claviers et leur procédé de fabrication
US8984737B2 (en) 2011-11-02 2015-03-24 Blackberry Limited Method of manufacturing keycaps of keys of a keyboard
EP3014396A1 (fr) * 2013-09-30 2016-05-04 Apple Inc. Touches de clavier d'épaisseur réduite

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5510782A (en) * 1992-08-03 1996-04-23 Itt Corporation Back lit keypad
WO2005125158A1 (fr) * 2004-06-22 2005-12-29 Motorola, Inc. Clavier metallique pour telephone portatif et procede de fabrication du clavier
US20070205986A1 (en) * 2004-03-17 2007-09-06 Kim Hak W Metal Keypad Assembly for Mobile Phone and Manufacturing Method of Keypad
EP1950781A1 (fr) * 2005-10-24 2008-07-30 Sunarrow Ltd. Clavier mince et son procede de fabrication

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5510782A (en) * 1992-08-03 1996-04-23 Itt Corporation Back lit keypad
US20070205986A1 (en) * 2004-03-17 2007-09-06 Kim Hak W Metal Keypad Assembly for Mobile Phone and Manufacturing Method of Keypad
WO2005125158A1 (fr) * 2004-06-22 2005-12-29 Motorola, Inc. Clavier metallique pour telephone portatif et procede de fabrication du clavier
EP1950781A1 (fr) * 2005-10-24 2008-07-30 Sunarrow Ltd. Clavier mince et son procede de fabrication

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2589480A1 (fr) * 2011-11-02 2013-05-08 Research In Motion Limited Claviers et leur procédé de fabrication
US8984737B2 (en) 2011-11-02 2015-03-24 Blackberry Limited Method of manufacturing keycaps of keys of a keyboard
EP3014396A1 (fr) * 2013-09-30 2016-05-04 Apple Inc. Touches de clavier d'épaisseur réduite

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