EP0974220A2 - Electrical device - Google Patents

Electrical device

Info

Publication number
EP0974220A2
EP0974220A2 EP98929201A EP98929201A EP0974220A2 EP 0974220 A2 EP0974220 A2 EP 0974220A2 EP 98929201 A EP98929201 A EP 98929201A EP 98929201 A EP98929201 A EP 98929201A EP 0974220 A2 EP0974220 A2 EP 0974220A2
Authority
EP
European Patent Office
Prior art keywords
control element
electrical device
light guide
guide body
light
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Withdrawn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
EP98929201A
Other languages
German (de)
French (fr)
Inventor
Henry Lerchner
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.)
Siemens AG
Original Assignee
Robert Bosch GmbH
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 Robert Bosch GmbH filed Critical Robert Bosch GmbH
Publication of EP0974220A2 publication Critical patent/EP0974220A2/en
Withdrawn legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
    • G02B6/0001—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems
    • G02B6/0011—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems the light guides being planar or of plate-like form
    • G02B6/0013—Means for improving the coupling-in of light from the light source into the light guide
    • G02B6/0015—Means for improving the coupling-in of light from the light source into the light guide provided on the surface of the light guide or in the bulk of it
    • G02B6/002—Means for improving the coupling-in of light from the light source into the light guide provided on the surface of the light guide or in the bulk of it by shaping at least a portion of the light guide, e.g. with collimating, focussing or diverging surfaces
    • G02B6/0021—Means for improving the coupling-in of light from the light source into the light guide provided on the surface of the light guide or in the bulk of it by shaping at least a portion of the light guide, e.g. with collimating, focussing or diverging surfaces for housing at least a part of the light source, e.g. by forming holes or recesses
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
    • G09F9/00—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
    • G02B6/0001—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems
    • G02B6/0011—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems the light guides being planar or of plate-like form
    • G02B6/0081—Mechanical or electrical aspects of the light guide and light source in the lighting device peculiar to the adaptation to planar light guides, e.g. concerning packaging
    • 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
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
    • G02B6/0001—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems
    • G02B6/0011—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems the light guides being planar or of plate-like form
    • G02B6/0081—Mechanical or electrical aspects of the light guide and light source in the lighting device peculiar to the adaptation to planar light guides, e.g. concerning packaging
    • G02B6/0083—Details of electrical connections of light sources to drivers, circuit boards, or the like
    • 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
    • H01H2219/00—Legends
    • H01H2219/054—Optical elements
    • H01H2219/062—Light conductor
    • H01H2219/0622—Light conductor only an illuminated ring around keys
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H2221/00—Actuators
    • H01H2221/07—Actuators transparent

Definitions

  • the invention is based on an electrical device according to the preamble of the main claim.
  • a radio device which comprises a display device.
  • At least one control element for selecting and / or activating functions of the radio which can be represented on the display device is also provided.
  • the at least one control element is preferably arranged in the immediate vicinity of the display device, so that there is a local association between the at least one control element and the representation of the functions of the radio on the display device.
  • the at least one control element can be illuminated.
  • the electrical device according to the invention with the features of the main claim has the advantage that the support for the display device and the at least one control element is used simultaneously to illuminate them and thus fulfills several functions simultaneously. In this way, no additional components for receiving and illuminating the display device and the at least one control element are required, so that material, manufacturing outlay and costs are saved.
  • the light guide body also serves to absorb force when the at least one control element is actuated, so that there are no additional components and devices to be provided on the housing of the electrical device, and material, effort and costs can thus be saved.
  • control element preferably in the immediate vicinity of the edge area of the housing surface of the electrical device. In this way, the at least one control element is accessible to the user so that the at least one control element can also be operated with the
  • Fingers of the hand holding the electrical device is possible. This advantage is of particular importance for the design of the electrical device as a portable device, for example as a radio device. It is also advantageous that in the area of the at least one control element a flexible circuit board with a switching dome rests on the light guide body, that the switching dome can be actuated by means of the at least one control element and that the flexible circuit board has at least one opening outside the switching dome. Due to the flexibility of the circuit board, the force that occurs when the at least one control element is actuated is transmitted to the light-guiding body, so that the light-guiding body enables an additional function to be taken up. The at least one control element can still be illuminated via the opening in the circuit board. Using the switching dome provides a particularly simple way of making contact when the at least one control element is actuated. Due to the flexibility of the circuit board, it can also be easily adapted to the contour of the light guide body.
  • Control element are beveled. In this way, the lateral accessibility of the at least one control element is further improved, so that the operation of the at least one control element with the fingers of the hand holding the electrical device is further simplified, especially in the case of a portable electrical device according to the invention.
  • the switching dome is made of translucent material. In this way, the light supply to the at least one control element is further improved.
  • FIG. 1 shows a cross section through an electrical device according to the invention and
  • FIG. 2 shows a top view of a printed circuit board with a switching dome.
  • 1 denotes an electrical device designed as a radio. 1 shows only a part of a cross section through the radio device 1 that is necessary for the description of the invention.
  • the housing of the radio device 1 is divided into an underside 70 and an upper side 65, the underside 70 with the upper side 65 being interconnected by a side wall 75 are connected, which is chamfered in the area of the top 65 towards the top 65, wherein any angle can be selected for the chamfer.
  • This bevel represents an edge region 45 of the housing surface 25 of the radio device 1.
  • a first printed circuit board 55 is arranged on the underside 70 of the radio device 1.
  • a light guide body 15 is arranged on the side of the first printed circuit board 55 facing away from the underside 70.
  • the light guide body 15 On its side facing away from the first printed circuit board 55, the light guide body 15 has a receptacle 80 designed as a depression, into which a display device 5 is inserted. On the side of the display device 5 facing away from the light guide body 15, a window 60 is let into the upper side 65 of the radio device 1, through which the user can perceive representations on the display device 5. Below the window 60, on its side facing away from the housing surface 25, the light guide body 15 has a first indentation 90 Recording of a first light source 20 contacted on the first printed circuit board 55 and designed as a light-emitting diode.
  • the edge area 45 has an opening 100 for receiving an operating element 10 designed as a button.
  • the button 10 has in the interior of the radio device 1 projections 105 which, when the button 10 is not in use, bear against the inside of the housing wall and prevent the button 10 from falling out of the radio device 1.
  • the light guide body 15 is also beveled in a plane approximately parallel to the edge area 45.
  • a second circuit board 30 is arranged between the button 10 and the light guide body 15, the base area of which corresponds to the base area of the button 10 and on the side facing away from the light guide body 15 a switching dome 35 with a curvature toward the button 10 is arranged.
  • Figure 1 shows the key 10 in the unactuated state. If the key 10 is actuated in the direction of the arrow according to FIG. 1, the switching dome 35 is depressed in a manner known to the person skilled in the art
  • the second printed circuit board 30 is formed from flexible printed circuit board material in order to apply the force to the button 10 in the direction of the arrow
  • the button 10 To transmit light guide body 15 and to adapt to the shape of the light guide body 15.
  • the button 10 When the button 10 is pressed in the direction of the arrow, the light guide body 15 absorbs force. After pressing the button 10, that is to say after releasing the button 10, it is pressed back against the inside wall of the radio of the radio device 1 with its lugs 105 by arching the switching dome 35 back.
  • FIG. 2 shows a plan view of the second printed circuit board 30.
  • An annular opening 40 is arranged around the switching dome 35, which is applied approximately in the middle on the second printed circuit board 30.
  • the switching dome 35 can be formed from translucent material.
  • the light emitted by the first light-emitting diode 20 serves both to illuminate the display device 5 and to illuminate the button 10, which for this purpose is also at least partially transparent, via the light guide body 15.
  • the button 10 can be made of translucent silicone.
  • Printed circuit board 55 side directly below the button 10 additionally have a second indentation 95 for receiving a second light source 50, which in this example is also designed as a light-emitting diode. Since the second light-emitting diode 50 is arranged in the immediate vicinity of the button 10, it can specifically improve the lighting of the button 10. The light from the first and / or second light-emitting diode 20, 50 is fed to the button 10 via the opening 40 and the translucent switching dome 35 of the second printed circuit board 30.
  • the extent of the display device 5 extends to in the immediate vicinity of the edge region 45, so that the key 10 is arranged in the immediate vicinity of the display device 5. It lies in the actuated as well as in the unpowered state Key 10 on the second circuit board 30 and the switching dome 35 on the light guide 15 so that it can not fall inside the radio 1.
  • the invention also relates to any other electrical devices with a display device, such as pagers, corded telephone devices, pocket calculators, measuring devices, etc.
  • a display device such as pagers, corded telephone devices, pocket calculators, measuring devices, etc.
  • the attachment of the second circuit board 30 and the display device 5 on the The light guide body 15 can be made, for example, by means of a translucent adhesive layer.
  • the key 10 can, for example, also between the
  • Edge area 45 and the window 60 may be arranged on the upper side 65 of the radio device 1, so that it is arranged both in the immediate vicinity of the edge area 45 and in the immediate vicinity of the display device 5 or the window 60.
  • the extension of the display device 5 and the window 60 would have to be matched accordingly, so that there is still a sufficiently large contact surface of the light guide body 15 for the button 10 and the second circuit board 30 with the top surface 65 between the edge area 45 and the window 60 attached switching dome 35 results.
  • the second indentation 95 of the light guide body 15 with the second light-emitting diode 50 accommodated therein is likewise to be arranged directly below the button 10 attached to the upper side 65 of the radio device 1, so that the best possible illumination of the button 10 for this attachment location is achieved when the illumination by the first light-emitting diode 20 should not be sufficient.

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Switch Cases, Indication, And Locking (AREA)
  • Push-Button Switches (AREA)
  • Illuminated Signs And Luminous Advertising (AREA)
  • Telephone Set Structure (AREA)
  • Input From Keyboards Or The Like (AREA)

Abstract

The invention relates to an electrical device (1), especially a radio device, enabling improved accommodation of the operator elements and the illumination of said operator elements at the same time. The electrical device (1) comprises a display device (5), and at least one operator element (10) located preferably in the direct proximity of said display device (5). Said operator element can be illuminated. The display device (5) lies on a lighting body (15), and is illuminated via this lighting body by means of at least one light source, preferably a light-emitting diode, inside the electrical device (1). The at least one operator element (10) is configured so that it is at least partially transparent, and also lies on the lighting body (15). Said operator element can also be illuminated via the lighting body (15) by means of the light which can be radiated from at least one light source (20).

Description

Elektrisches Gerät Electric device
Stand der TechnikState of the art
Die Erfindung geht von einem elektrischen Gerät nach der Gattung des Hauptanspruchs aus .The invention is based on an electrical device according to the preamble of the main claim.
Aus der noch nicht vorverδffentlichten deutschenFrom the not yet published German
Patentanmeldung mit dem Aktenzeichen 197 06 595 ist bereits ein Funkgerät bekannt, das eine Anzeigevorrichtung umfaßt. Dabei ist weiterhin mindestens ein Bedienelement zur Auswahl und/oder Aktivierung von an der Anzeigevorrichtung darstellbaren Funktionen des Funkgerätes vorgesehen. Das mindestens eine Bedienelement ist in vorzugsweise unmittelbarer Nähe der Anzeigevorrichtung angeordnet, so daß eine örtliche Zuordnung zwischen dem mindestens einen Bedienelement und der Darstellung der Funktionen des Funkgerätes an der Anzeigevorrichtung besteht. Das mindestens eine Bedienelement kann dabei beleuchtbar sein.Patent application with the file number 197 06 595 a radio device is already known which comprises a display device. At least one control element for selecting and / or activating functions of the radio which can be represented on the display device is also provided. The at least one control element is preferably arranged in the immediate vicinity of the display device, so that there is a local association between the at least one control element and the representation of the functions of the radio on the display device. The at least one control element can be illuminated.
Aus dem Katalog „LCD Liquid Crystal Display 1995" der Fa. Optrex ist weiterhin bekannt, eine Anzeigevorrichtung oberhalb eines Lichtleitkörpers anzuordnen und mittels einer Leuchtdiode über diesen Lichtleitkörper zu beleuchten. Vorteile der ErfindungFrom the catalog "LCD Liquid Crystal Display 1995" from Optrex, it is also known to arrange a display device above a light guide body and to illuminate it via a light emitting diode via this light guide body. Advantages of the invention
Das erfindungsgemäße elektrische Gerät mit den Merkmalen des Hauptanspruchs hat demgegenüber den Vorteil, daß die Auflage für die Anzeigevorrichtung und das mindestens eine Bedienelement gleichzeitig zu deren Beleuchtung verwendet wird und somit mehrere Funktionen gleichzeitig erfüllt. Auf diese Weise sind keine zusätzlichen Bauteile zur Aufnahme und Beleuchtung der Anzeigevorrichtung und des mindestens einen Bedienelements erforderlich, so daß Material, Herstellungsaufwand und Kosten eingespart werden.The electrical device according to the invention with the features of the main claim has the advantage that the support for the display device and the at least one control element is used simultaneously to illuminate them and thus fulfills several functions simultaneously. In this way, no additional components for receiving and illuminating the display device and the at least one control element are required, so that material, manufacturing outlay and costs are saved.
Vorteilhaft ist weiterhin, daß der Lichtleitkörper auch zur Kraftaufnahme bei der Betätigung des mindestens einen Bedienelementes dient, so daß dafür ebenfalls keine zusätzlichen Bauteile und Vorrichtungen am Gehäuse des elektrischen Gerätes vorzusehen sind und so zusätzlich Material, Aufwand und Kosten eingespart werden können.It is also advantageous that the light guide body also serves to absorb force when the at least one control element is actuated, so that there are no additional components and devices to be provided on the housing of the electrical device, and material, effort and costs can thus be saved.
Durch die in den Unteransprüchen aufgeführten Maßnahmen sind vorteilhafte Weiterbildungen und Verbesserungen des im Hauptanspruch angegebenen elektrischen Gerätes möglich.The measures listed in the subclaims permit advantageous developments and improvements of the electrical device specified in the main claim.
Besonders vorteilhaft ist es, das mindestens eineIt is particularly advantageous that the at least one
Bedienelement in vorzugsweise unmittelbarer Nähe des Randbereichs der Gehäuseoberfläche des elektrischen Gerätes anzuordnen. Auf diese Weise ist das mindestens eine Bedienelement für den Benutzer so zugänglich, daß auch eine Bedienung des mindestens einen Bedienelementes mit denArrange control element preferably in the immediate vicinity of the edge area of the housing surface of the electrical device. In this way, the at least one control element is accessible to the user so that the at least one control element can also be operated with the
Fingern der das elektrische Gerät haltenden Hand möglich ist. Dieser Vorteil ist für die Ausbildung des elektrischen Gerätes als tragbares Gerät, beispielsweise als Funkgerät, von besonderer Bedeutung. Vorteilhaft ist weiterhin, daß im Bereich des mindestens einen Bedienelementes eine flexible Leiterplatte mit einem Schaltdom auf dem Lichtleitkörper aufliegt, daß der Schaltdom mittels des mindestens einen Bedienelementes betätigbar ist und daß die flexible Leiterplatte außerhalb des Schaltdomes mindestens einen Durchbruch aufweist. Aufgrund der Flexibilität der Leiterplatte wird die bei Betätigung des mindestens einen Bedienelementes auftretende Kraft auf den Lichtleitkörper übertragen, so daß der Lichtleitkörper als zusätzliche Funktion eine Kraftaufnahme ermöglicht. Über den Durchbruch der Leiterplatte läßt sich das mindestens eine Bedienelement dennoch beleuchten. Durch Verwendung des Schaltdomes ist eine besonders einfache Möglichkeit zur Kontaktgabe bei Betätigung des mindestens einen Bedienelementes gegeben. Durch die Flexibilität der Leiterplatte ist diese auch an die Kontur des Lichtleitkörpers auf einfache Weise anpaßbar.Fingers of the hand holding the electrical device is possible. This advantage is of particular importance for the design of the electrical device as a portable device, for example as a radio device. It is also advantageous that in the area of the at least one control element a flexible circuit board with a switching dome rests on the light guide body, that the switching dome can be actuated by means of the at least one control element and that the flexible circuit board has at least one opening outside the switching dome. Due to the flexibility of the circuit board, the force that occurs when the at least one control element is actuated is transmitted to the light-guiding body, so that the light-guiding body enables an additional function to be taken up. The at least one control element can still be illuminated via the opening in the circuit board. Using the switching dome provides a particularly simple way of making contact when the at least one control element is actuated. Due to the flexibility of the circuit board, it can also be easily adapted to the contour of the light guide body.
Vorteilhaft ist weiterhin, daß der Randbereich und der Lichtleitkörper im Bereich des mindestens einenIt is also advantageous that the edge region and the light guide body in the region of the at least one
Bedienelementes abgeschrägt sind. Auf diese Weise wird die seitliche Zugänglichkeit des mindestens einen Bedienelementes weiter verbessert, so daß vor allem bei einem tragbaren erfindungsgemäßen elektrischen Gerät die Bedienung des mindestens einen Bedienelementes mit den Fingern der das elektrische Gerät haltenden Hand weiter vereinfacht wird.Control element are beveled. In this way, the lateral accessibility of the at least one control element is further improved, so that the operation of the at least one control element with the fingers of the hand holding the electrical device is further simplified, especially in the case of a portable electrical device according to the invention.
Vorteilhaft ist auch, daß der Schaltdom aus lichtdurchlässigem Material gebildet ist. Auf diese Weise wird die LichtZuführung zum mindestens einen Bedienelement weiter verbessert. ZeichnungIt is also advantageous that the switching dome is made of translucent material. In this way, the light supply to the at least one control element is further improved. drawing
Ein Ausführungsbeispiel der Erfindung ist in der Zeichnung dargestellt und in der nachfolgenden Beschreibung näher erläutert. Es zeigen Figur 1 einen Querschnitt durch ein erfindungsgemäßes elektrisches Gerät und Figur 2 eine Aufsicht auf eine Leiterplatte mit Schaltdom.An embodiment of the invention is shown in the drawing and explained in more detail in the following description. FIG. 1 shows a cross section through an electrical device according to the invention and FIG. 2 shows a top view of a printed circuit board with a switching dome.
Beschreibung des AusführungsbeispielsDescription of the embodiment
In Figur 1 kennzeichnet 1 ein als Funkgerät ausgebildetes elektrisches Gerät. Figur 1 zeigt dabei nur einen für die Beschreibung der Erfindung erforderlichen Teil eines Querschnitts durch das Funkgerät 1. Dabei ist das Gehäuse des Funkgerätes 1 in eine Unterseite 70 und eine Oberseite 65 aufgeteilt, wobei die Unterseite 70 mit der Oberseite 65 durch eine Seitenwand 75 miteinander verbunden sind, die im Bereich der Oberseite 65 zur Oberseite 65 hin abgeschrägt ist, wobei für die Abschrägung ein beliebiger Winkel gewählt werden kann. Diese Abschrägung stellt einen Randbereich 45 der Gehäuseoberfläche 25 des Funkgerätes 1 dar. An der Unterseite 70 des Funkgerätes 1 ist eine erste Leiterplatte 55 angeordnet. Auf der der Unterseite 70 abgewandten Seite der ersten Leiterplatte 55 ist ein Lichtleitkörper 15 angeordnet. Auf seiner der ersten Leiterplatte 55 abgewandten Seite weist der Lichtleitkörper 15 eine als Vertiefung ausgebildete Aufnahme 80 auf, in die eine Anzeigevorrichtung 5 eingelegt ist. Auf der dem Lichtleitkörper 15 abgewandten Seite der Anzeigevorrichtung 5 ist in die Oberseite 65 des Funkgerätes 1 ein Fenster 60 eingelassen, durch das der Benutzer Darstellungen an der Anzeigevorrichtung 5 wahrnehmen kann. Unterhalb des Fensters 60, auf seiner der Gehäuseoberfläche 25 abgewandten Seite weist der Lichtleitkörper 15 eine erste Einbuchtung 90 zur Aufnahme einer auf der ersten Leiterplatte 55 kontaktierten und als Leuchtdiode ausgebildeten ersten Lichtquelle 20 auf.In FIG. 1, 1 denotes an electrical device designed as a radio. 1 shows only a part of a cross section through the radio device 1 that is necessary for the description of the invention. The housing of the radio device 1 is divided into an underside 70 and an upper side 65, the underside 70 with the upper side 65 being interconnected by a side wall 75 are connected, which is chamfered in the area of the top 65 towards the top 65, wherein any angle can be selected for the chamfer. This bevel represents an edge region 45 of the housing surface 25 of the radio device 1. A first printed circuit board 55 is arranged on the underside 70 of the radio device 1. A light guide body 15 is arranged on the side of the first printed circuit board 55 facing away from the underside 70. On its side facing away from the first printed circuit board 55, the light guide body 15 has a receptacle 80 designed as a depression, into which a display device 5 is inserted. On the side of the display device 5 facing away from the light guide body 15, a window 60 is let into the upper side 65 of the radio device 1, through which the user can perceive representations on the display device 5. Below the window 60, on its side facing away from the housing surface 25, the light guide body 15 has a first indentation 90 Recording of a first light source 20 contacted on the first printed circuit board 55 and designed as a light-emitting diode.
Der Randbereich 45 weist einen Durchbruch 100 zur Aufnahme eines als Taste ausgebildeten Bedienelementes 10 auf. Die Taste 10 weist im Innern des Funkgerätes 1 als Nasen 105 ausgebildete Vorsprünge auf, die im unbetatigten Zustand der Taste 10 von innen an der Gehäusewand anliegen und ein Herausfallen der Taste 10 aus dem Funkgerät 1 verhindern. Im Bereich der Taste 10 ist auch der Lichtleitkörper 15 in einer Ebene etwa parallel zum Randbereich 45 abgeschrägt. Auf dieser Schräge des Lichtleitkörpers 15 ist zwischen der Taste 10 und dem Lichtleitkörper 15 eine zweite Leiterplatte 30 angeordnet, deren Grundfläche der Grundfläche der Taste 10 entspricht und an deren dem Lichtleitkörper 15 abgewandten Seite ein Schaltdom 35 mit Wölbung zur Taste 10 hin angeordnet ist. Figur 1 zeigt die Taste 10 im unbetatigten Zustand. Wird die Taste 10 in Pfeilrichtung gemäß Figur 1 betätigt, so erfolgt durch Niederdrücken des Schaltdoms 35 in einer dem Fachmann bekannten Weise eineThe edge area 45 has an opening 100 for receiving an operating element 10 designed as a button. The button 10 has in the interior of the radio device 1 projections 105 which, when the button 10 is not in use, bear against the inside of the housing wall and prevent the button 10 from falling out of the radio device 1. In the area of the button 10, the light guide body 15 is also beveled in a plane approximately parallel to the edge area 45. On this slope of the light guide body 15, a second circuit board 30 is arranged between the button 10 and the light guide body 15, the base area of which corresponds to the base area of the button 10 and on the side facing away from the light guide body 15 a switching dome 35 with a curvature toward the button 10 is arranged. Figure 1 shows the key 10 in the unactuated state. If the key 10 is actuated in the direction of the arrow according to FIG. 1, the switching dome 35 is depressed in a manner known to the person skilled in the art
Kontaktgabe an Kontakten der zweiten Leiterplatte 30. Über eine Verbindungsleitung 110 zwischen der zweiten Leiterplatte 30 und der ersten Leiterplatte 55 werden entsprechend der Kontaktgabe erzeugte Signale zur Verarbeitung an die erste Leiterplatte 55 weitergeleitet. Dabei können die erste Leiterplatte 55 und die zweite Leiterplatte 30 eine gemeinsame Leiterplatte bilden. Die zweite Leiterplatte 30 ist aus flexiblem Leiterplattenmaterial gebildet, um die bei der Betätigung der Taste 10 in Pfeilrichtung auftretende Kraft an denContacting at contacts of the second printed circuit board 30. Via a connecting line 110 between the second printed circuit board 30 and the first printed circuit board 55, signals generated in accordance with the contacting are forwarded to the first printed circuit board 55 for processing. The first circuit board 55 and the second circuit board 30 can form a common circuit board. The second printed circuit board 30 is formed from flexible printed circuit board material in order to apply the force to the button 10 in the direction of the arrow
Lichtleitkörper 15 zu übertragen und sich an die Form des Lichtleitkörpers 15 anzupassen. Bei Betätigung der Taste 10 in Pfeilrichtung wird also vom Lichtleitkörper 15 Kraft aufgenommen . Nach Betätigung der Taste 10, das heißt nach Loslassen der Taste 10, wird diese durch Rückwölbung des Schaltdoms 35 wieder mit ihren Nasen 105 gegen die Gehäuseinnenwand des Funkgerätes 1 gedrückt .To transmit light guide body 15 and to adapt to the shape of the light guide body 15. When the button 10 is pressed in the direction of the arrow, the light guide body 15 absorbs force. After pressing the button 10, that is to say after releasing the button 10, it is pressed back against the inside wall of the radio of the radio device 1 with its lugs 105 by arching the switching dome 35 back.
Figur 2 zeigt eine Aufsicht auf die zweite Leiterplatte 30. Um den etwa mittig auf der zweiten Leiterplatte 30 aufgebrachten Schaltdom 35 ist ein ringförmiger Durchbruch 40 angeordnet. Zusätzlich kann der Schaltdom 35 aus lichtdurchlässigem Material gebildet sein.FIG. 2 shows a plan view of the second printed circuit board 30. An annular opening 40 is arranged around the switching dome 35, which is applied approximately in the middle on the second printed circuit board 30. In addition, the switching dome 35 can be formed from translucent material.
Das von der ersten Leuchtdiode 20 abgestrahlte Licht dient sowohl zur Beleuchtung der Anzeigevorrichtung 5 als auch zur Beleuchtung der Taste 10, die dazu zumindest teilweise ebenfalls lichtdurchlässig ausgebildet ist, über den Lichtleitkörper 15. Die Taste 10 kann dabei aus lichtdurchlässigem Silikon gebildet sein.The light emitted by the first light-emitting diode 20 serves both to illuminate the display device 5 and to illuminate the button 10, which for this purpose is also at least partially transparent, via the light guide body 15. The button 10 can be made of translucent silicone.
Zur Verbesserung der Beleuchtung der Taste 10 kann der Lichtleitkörper 15 gemäß Figur 1 an seiner der erstenTo improve the lighting of the button 10, the light guide body 15 according to FIG
Leiterplatte 55 zugewandten Seite direkt unterhalb der Taste 10 zusätzlich eine zweite Einbuchtung 95 zur Aufnahme einer zweiten, in diesem Beispiel ebenfalls als Leuchtdiode ausgebildeten Lichtquelle 50 aufweisen. Da die zweite Leuchtdiode 50 in unmittelbarer Nähe der Taste 10 angeordnet ist, kann sie die Beleuchtung der Taste 10 gezielt verbessern. Das Licht der ersten und/oder zweiten Leuchtdiode 20, 50 wird der Taste 10 über den Durchbruch 40 und den lichtdurchlässigen Schaltdom 35 der zweiten Leiterplatte 30 zugeführt.Printed circuit board 55 side directly below the button 10 additionally have a second indentation 95 for receiving a second light source 50, which in this example is also designed as a light-emitting diode. Since the second light-emitting diode 50 is arranged in the immediate vicinity of the button 10, it can specifically improve the lighting of the button 10. The light from the first and / or second light-emitting diode 20, 50 is fed to the button 10 via the opening 40 and the translucent switching dome 35 of the second printed circuit board 30.
Die Anzeigevorrichtung 5 reicht in ihrer Ausdehnung bis in unmittelbare Nähe des Randbereichs 45, so daß die Taste 10 in unmittelbarer Nähe der Anzeigevorrichtung 5 angeordnet ist. Im betätigten wie im unbetatigten Zustand liegt die Taste 10 über die zweite Leiterplatte 30 und den Schaltdom 35 auf dem Lichtleitkörper 15 auf, so daß sie nicht ins Innere des Funkgerätes 1 fallen kann.The extent of the display device 5 extends to in the immediate vicinity of the edge region 45, so that the key 10 is arranged in the immediate vicinity of the display device 5. It lies in the actuated as well as in the unpowered state Key 10 on the second circuit board 30 and the switching dome 35 on the light guide 15 so that it can not fall inside the radio 1.
Neben Funkgeräten, wie sie beispielsweise bei Mobilfunk oder Schnurlostelefonie eingesetzt werden, betrifft die Erfindung auch beliebige andere elektrische Geräte mit einer Anzeigevorrichtung, wie beispielsweise Pager, schnurgebundene Fernsprechendgeräte, Taschenrechner, Meßgeräte, usw. Die Befestigung der zweiten Leiterplatte 30 und der Anzeigevorrichtung 5 auf dem Lichtleitkörper 15 kann beispielsweise mittels einer lichtdurchlässigen Klebeschicht erfolgen.In addition to radio devices, such as those used in mobile radio or cordless telephony, the invention also relates to any other electrical devices with a display device, such as pagers, corded telephone devices, pocket calculators, measuring devices, etc. The attachment of the second circuit board 30 and the display device 5 on the The light guide body 15 can be made, for example, by means of a translucent adhesive layer.
Die Taste 10 kann beispielsweise auch zwischen demThe key 10 can, for example, also between the
Randbereich 45 und dem Fenster 60 an der Oberseite 65 des Funkgerätes 1 angeordnet sein, so daß sie sowohl in unmittelbarer Nähe des Randbereichs 45 als auch in unmittelbarer Nähe zur Anzeigevorrichtung 5 bzw. zum Fenster 60 angeordnet ist. Die Ausdehnung der Anzeigevorrichtung 5 und des Fensters 60 müßten dabei entsprechend abgestimmt sein, so daß sich unterhalb der Oberseite 65 zwischen dem Randbereich 45 und dem Fenster 60 noch eine genügend große Auflagefläche des Lichtleitkörpers 15 für die Taste 10 und die zweite Leiterplatte 30 mit dem darauf befestigten Schaltdom 35 ergibt. Die zweite Einbuchtung 95 des Lichtleitkörpers 15 mit der darin aufgenommenen zweiten Leuchtdiode 50 ist ebenfalls entsprechend direkt unterhalb der an der Oberseite 65 des Funkgerätes 1 angebrachten Taste 10 anzuordnen, damit eine möglichst gute Ausleuchtung der Taste 10 für diesen Anbringungsort bewirkt wird, wenn die Ausleuchtung durch die erste Leuchtdiode 20 nicht ausreichen sollte. Edge area 45 and the window 60 may be arranged on the upper side 65 of the radio device 1, so that it is arranged both in the immediate vicinity of the edge area 45 and in the immediate vicinity of the display device 5 or the window 60. The extension of the display device 5 and the window 60 would have to be matched accordingly, so that there is still a sufficiently large contact surface of the light guide body 15 for the button 10 and the second circuit board 30 with the top surface 65 between the edge area 45 and the window 60 attached switching dome 35 results. The second indentation 95 of the light guide body 15 with the second light-emitting diode 50 accommodated therein is likewise to be arranged directly below the button 10 attached to the upper side 65 of the radio device 1, so that the best possible illumination of the button 10 for this attachment location is achieved when the illumination by the first light-emitting diode 20 should not be sufficient.

Claims

Patentansprüche claims
1. Elektrisches Gerät (1), insbesondere Funkgerät, mit einer Anzeigevorrichtung (5) und mindestens einem in vorzugsweise unmittelbarer Nähe der Anzeigevorrichtung (5) angeordnetem beleuchtbaren Bedienelement (10) , dadurch gekennzeichnet, daß die Anzeigevorrichtung (5) auf einem Lichtleitkörper (15) aufliegt, über den sie von mindestens einer vorzugsweise als Leuchtdiode ausgebildeten Lichtquelle (20) im Innern des elektrischen Gerätes (1) beleuchtbar ist, daß das mindestens eine Bedienelement (10) zumindest teilweise lichtdurchlässig ausgebildet ist und daß das mindestens eine Bedienelement (10) ebenfalls auf dem Lichtleitkörper (15) aufliegt und über den Lichtleitkörper (15) durch das von der mindestens einen Lichtquelle (20) abstrahlbare Licht beleuchtbar ist.1. Electrical device (1), in particular radio, with a display device (5) and at least one preferably in the immediate vicinity of the display device (5) arranged illuminable control element (10), characterized in that the display device (5) on a light guide body (15 ), by means of which it can be illuminated by at least one light source (20), preferably designed as a light-emitting diode, inside the electrical device (1), that the at least one control element (10) is at least partially translucent and that the at least one control element (10) also rests on the light guide body (15) and can be illuminated via the light guide body (15) by the light that can be emitted by the at least one light source (20).
2. Elektrisches Gerät (1) nach Anspruch 1, dadurch gekennzeichnet, daß das mindestens eine Bedienelement (10) in vorzugsweise unmittelbarer Nähe des Randbereichs (45) der Gehäuseoberfläche (25) des elektrischen Gerätes (1) angeordnet ist. 2. Electrical device (1) according to claim 1, characterized in that the at least one control element (10) is arranged in the immediate vicinity of the edge region (45) of the housing surface (25) of the electrical device (1).
3. Elektrisches Gerät (1) nach Anspruch 2, dadurch gekennzeichnet, daß im Bereich des mindestens einen Bedienelementes (10) eine flexible Leiterplatte (30) mit einem Schaltdom (35) auf dem Lichtleitkörper (15) aufliegt, daß der Schaltdom (35) mittels des mindestens einen3. Electrical device (1) according to claim 2, characterized in that in the region of the at least one control element (10) a flexible circuit board (30) with a switching dome (35) on the light guide body (15) rests that the switching dome (35) by means of the at least one
Bedienelementes (10) betätigbar ist und daß die Leiterplatte (30) außerhalb des Schaltdomes (35) mindestens einen Durchbruch (40) aufweist.Control element (10) can be actuated and that the printed circuit board (30) outside the switching dome (35) has at least one opening (40).
4. Elektrisches Gerät (1) nach Anspruch 2 oder 3, dadurch gekennzeichnet, daß der Randbereich (45) und der Lichtleitkörper (15) im Bereich des mindestens einen Bedienelementes (10) abgeschrägt sind.4. Electrical device (1) according to claim 2 or 3, characterized in that the edge region (45) and the light guide body (15) in the region of the at least one control element (10) are chamfered.
5. Elektrisches Gerät (1) nach Anspruch 3 oder 4, dadurch gekennzeichnet, daß der Schaltdom (35) aus lichtdurchlässigem Material gebildet ist. 5. Electrical device (1) according to claim 3 or 4, characterized in that the switching dome (35) is formed from translucent material.
EP98929201A 1997-04-11 1998-04-08 Electrical device Withdrawn EP0974220A2 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE19715053 1997-04-11
DE19715053A DE19715053A1 (en) 1997-04-11 1997-04-11 Electric device
PCT/DE1998/000986 WO1998047123A2 (en) 1997-04-11 1998-04-08 Electrical device

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EP0974220A2 true EP0974220A2 (en) 2000-01-26

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EP98929201A Withdrawn EP0974220A2 (en) 1997-04-11 1998-04-08 Electrical device

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EP (1) EP0974220A2 (en)
JP (1) JP2002500833A (en)
KR (1) KR20010006011A (en)
CN (1) CN1252200A (en)
DE (1) DE19715053A1 (en)
RU (1) RU99123432A (en)
TW (1) TW384458B (en)
WO (1) WO1998047123A2 (en)

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Publication number Priority date Publication date Assignee Title
DE19957611A1 (en) * 1999-11-30 2001-06-07 Osram Opto Semiconductors Gmbh Lighting arrangement
WO2005024873A1 (en) * 2003-09-08 2005-03-17 Koninklijke Philips Electronics N.V. A body and an electronic device
JP4305212B2 (en) * 2004-02-18 2009-07-29 日本電気株式会社 Mobile phone and manufacturing method thereof
KR101243669B1 (en) 2006-10-18 2013-03-25 엘지전자 주식회사 Mobile terminal
KR101537687B1 (en) 2008-09-29 2015-07-20 엘지전자 주식회사 Portable terminal
CN101923808B (en) 2009-06-10 2013-03-13 深圳富泰宏精密工业有限公司 Display component and portable electronic device using same
CN101931667B (en) * 2009-06-18 2015-03-25 赛恩倍吉科技顾问（深圳）有限公司 Display component and portable electronic device using same
CN102608801B (en) * 2011-01-24 2016-03-30 联想(北京)有限公司 Display device and comprise the terminal device of this display device

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JPH02148633A (en) * 1988-11-30 1990-06-07 Fujikura Ltd Back light membrane switch
EP0470403B1 (en) * 1990-08-07 1995-04-26 Siemens Aktiengesellschaft Keyboard and legend lighting
JPH0622017A (en) * 1992-07-03 1994-01-28 Matsushita Electric Ind Co Ltd Telephone set with back light
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JP2002500833A (en) 2002-01-08
TW384458B (en) 2000-03-11
WO1998047123A2 (en) 1998-10-22
DE19715053A1 (en) 1998-10-15
RU99123432A (en) 2001-10-27
WO1998047123A3 (en) 1999-01-28
KR20010006011A (en) 2001-01-15
CN1252200A (en) 2000-05-03

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