WO2006134574A2 - Dispositif de commande avec panneau de commande a elements de retroeclairage - Google Patents

Dispositif de commande avec panneau de commande a elements de retroeclairage Download PDF

Info

Publication number
WO2006134574A2
WO2006134574A2 PCT/IB2006/051929 IB2006051929W WO2006134574A2 WO 2006134574 A2 WO2006134574 A2 WO 2006134574A2 IB 2006051929 W IB2006051929 W IB 2006051929W WO 2006134574 A2 WO2006134574 A2 WO 2006134574A2
Authority
WO
WIPO (PCT)
Prior art keywords
elements
control
backlighting
control device
control panel
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.)
Ceased
Application number
PCT/IB2006/051929
Other languages
English (en)
Other versions
WO2006134574A3 (fr
Inventor
Koen Corteville
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.)
Koninklijke Philips NV
Original Assignee
Koninklijke Philips Electronics NV
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 Koninklijke Philips Electronics NV filed Critical Koninklijke Philips Electronics NV
Publication of WO2006134574A2 publication Critical patent/WO2006134574A2/fr
Publication of WO2006134574A3 publication Critical patent/WO2006134574A3/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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
    • H01H13/83—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
    • H01H13/02—Details
    • H01H13/023—Light-emitting indicators
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H15/00—Switches having rectilinearly-movable operating part or parts adapted for actuation in opposite directions, e.g. slide switch
    • H01H15/02—Details
    • H01H15/025—Light-emitting indicators
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H2219/00—Legends
    • H01H2219/002—Legends replaceable; adaptable
    • H01H2219/014—LED
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H2219/00—Legends
    • H01H2219/054—Optical elements
    • H01H2219/06—Reflector
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H2231/00—Applications
    • H01H2231/032—Remote control
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H23/00—Tumbler or rocker switches, i.e. switches characterised by being operated by rocking an operating member in the form of a rocker button
    • H01H23/02—Details
    • H01H23/025—Light-emitting indicators

Definitions

  • Control device having a control panel with backlighting elements
  • the invention relates to a control device having a control panel and backlighting elements for backlighting control elements on the control panel.
  • Control panels are used e.g. for controlling devices such as DVD players, CD-players, radios and display devices.
  • the invention also relates to an apparatus, such as an audio and/or video apparatus, comprising a control device for controlling its functions.
  • a control panel comprises a number of control elements.
  • a user can control a device by touching or pressing the control elements.
  • the control elements may be provided with numbers or symbols which are indicative of one or more controllable functions such as channel indication, contrast, color, loudness, etc.
  • the control panel is provided with backlighting elements. The backlighting elements illuminate the control elements so that they are more easily recognizable.
  • the conventional control device comprises a large number of parts, which leads to a rather complex design and thus increases the manufacturing costs of the control panel.
  • control device is characterized in that the backlighting elements are arranged to emit light in a direction away from the control elements, and the control device comprises a reflector on its rear side for directing light emitted by the backlighting elements towards the control elements on the control panel.
  • the backlighting elements are arranged behind the symbols to be illuminated, wherein each control element is provided with backlighting elements, such as LED-elements. It is important to provide a uniform backlighting so as to ensure that each control element is clearly and easily distinguishable. This requires a relatively large number of backlighting elements and, in operation, a large energy consumption.
  • the backlighting elements emit light in a direction away from the control elements and the light emitted by the backlighting element is reflected off a reflector at the rear side of the control device towards the control elements. Due to the increased light path between the backlighting element and the control elements, a backlighting element provides a better light distribution at the control elements, without the need for a substantial increase of depth of the control device. This reduces the number of parts of the control device, in particular the number of backlighting elements, thus reducing costs, complexity of design and power consumption.
  • control elements are touch control elements. Touch control elements allow a reduced depth of the control panel, as compared to buttons.
  • the reflector has at least a partially curved surface facing the backlighting elements. A curved reflective surface allows a better distribution of the light emitted by the backlighting elements towards the control elements.
  • the reflector is formed as a fixation bracket.
  • the reflector provides a double function, namely reflection and fixation.
  • reflectors having a curved surface are preferred in this respect, because the curved surface provides a strong fixation bracket.
  • the control device comprises a separate backlighting element for or with an on/off symbol. The on/off symbol is often provided with a separate color indication, for instance, red.
  • the backlighting elements are provided on a support which also supports a remote control receiver and/or a daylight sensor.
  • the novel design allows a single support to be used for the backlighting elements as well as for other elements such as a remote control receiver and/or a daylight sensor. This provides a simple and economical, yet effective and esthetically pleasing design.
  • the backlighting elements are LED elements, most preferably blue light-emitting LED elements.
  • FIG. 1 schematically shows a conventional control device.
  • Fig. 2 schematically shows, in a cross-section, a control device according to the invention.
  • Fig. 3 schematically shows, in a front view, a control device according to the invention.
  • FIGs. 4 and 5 schematically show further examples of a control device according to the invention.
  • Fig. 6 illustrates an apparatus, in this example a DVD player, with a control device according to the invention.
  • Fig. 7 is an exploded view of a preferred embodiment of a control device according to the invention.
  • Fig. 8 is an exploded rear view of a preferred embodiment of a control device according to the invention.
  • Figure 1 schematically shows a conventional control device.
  • the control device 1 comprises backlighting elements 2, such as, for instance, LED elements for backlighting control elements (buttons) 3.
  • the control device further comprises a front part 4 accommodating the buttons to be pressed, a rear part 5 and the usual control circuitry 6.
  • the light paths are schematically indicated by arrows.
  • the buttons 3 have to be pressed, which is indicated by the double-headed arrow.
  • the control elements are mechanical elements. A large number of backlighting elements, namely two for each control element has to be used for a proper and uniformly distributed illumination of the control elements 3.
  • FIG. 2 schematically shows, in a cross-section, a control device in accordance with an embodiment of the invention.
  • the control device 1 comprises a number of touch control elements 3, a backlighting element 2, a rear part 5 and circuitry 6.
  • the difference with the conventional design is that the backlighting elements 2 shine away from the control elements 3 towards the rear part 5.
  • the rear part 5 reflects the emitted light back towards the touch control elements 3.
  • the reflector 5 has a curved part 5a.
  • the illumination at the control elements 3 is substantially improved without the need for increasing the depth of the touch control device 1, thereby allowing use of a smaller number of backlighting elements (for instance, one per touch control element 3), or of backlighting elements of a lesser quality or strength, resulting in a reduction of the complexity of design, the number or parts and/or the cost of manufacturing or operating the touch control device.
  • the control elements are preferably touch control elements 3. This allows a further reduction of depth.
  • the touch control elements are preferably touch control PCB elements or form a touch control PCB element. This is preferred because the translucent material of the touch control PCB element provides some extra diffusion of light, thus increasing the uniformity of the light. Also, any problems associated with mechanical knobs, such as alignment of the knobs within the hole, burrs in the hole in which the knobs are fitted, etc. are eliminated by using a touch control PCB element.
  • Each touch control PCB element may be a separate element, or a number of touch control elements can be formed in one touch control PCB element 7.
  • the touch control PCB element is preferably covered with a PC front 8, which is preferably molded in transparent PC.
  • the rear side of the front 8 is printed in a color different from the light of the backlighting elements 2, for instance, in black, except for graphic symbols indicating the function of the relevant touch control element 3.
  • a black (or differently colored) front with transparent graphics is created in this way.
  • the PCB element 7 and the front 8 may be fixed to each other by e.g. double adhesive transparent tape.
  • the reflector 5 is formed as a fixation bracket.
  • the reflector 5 provides a double function, namely reflection and fixation.
  • reflectors having a curved surface are preferred in this respect; the curved surface provides a strong fixation bracket.
  • Figure 3 schematically shows, in a front view, a touch control device according to the invention.
  • the on-off symbol may have its own backlighting element which is colored differently from the other backlighting elements.
  • Figs. 4 and 5 show two such variations.
  • backlighting elements are provided at opposite sides of the touch control elements 3. This allows a further improvement of the uniformity of illumination.
  • Figure 4 also shows a design in which a backlighting element 2 is provided in between two rows of touch control elements 3, reducing yet again the number of backlighting elements per touch control element.
  • Figure 5 illustrates an embodiment in which the number of backlighting elements per touch control element is further reduced.
  • the backlighting elements are provided in a middle part of the touch control device, and the light is reflected to two sides, illuminating touch control elements above and below the backlighting element.
  • the rear part may have a form suited for such a purpose.
  • Figure 6 illustrates an apparatus comprising a control device according to the invention, in this example a DVD device 9, comprising a touch control device 1.
  • the dotted elements are not visible to the user, but indicate elements behind the visible touch panel.
  • the slot in the DVD device illustrates the insert for a DVD.
  • Figs. 7 and 8 are front and rear views, respectively, of a preferred embodiment of the invention. Since the light-emitting elements shine backwards, the distance between the light-emitting elements and the front of the control device is considerably reduced. This allows a design in which the light-emitting elements and further elements, such as a remote control receiver 10 and a daylight sensor 11, are provided on a single support element, in this case a PCB element 7. This integration of the remote control receiver and the daylight sensor as well as the LED elements in a single support, preferably covered by a single front 8, leads to a cost reduction as compared with conventional designs in which this is impossible. The resulting control device is simple, easy to manufacture, has a relatively low power consumption, a sleek design (i.e.
  • a control device 1 has a control panel 4 and backlighting elements 2 for backlighting control elements 3 on the control panel 4, wherein the backlighting elements 2 are arranged to emit light in a direction away from the control panel 4, and the control device 1 comprises a reflector 5 on its rear side for directing light emitted by the backlighting elements towards the control elements 3 on the control panel 4.
  • the control elements are preferably touch control elements.
  • the backlighting elements are preferably provided on a support 7 which also supports a remote control receiver 10 and/or a daylight sensor 11.

Landscapes

  • Arrangement Of Elements, Cooling, Sealing, Or The Like Of Lighting Devices (AREA)

Abstract

L'invention concerne un dispositif de commande (1) qui comprend un panneau de commande (4) et des éléments de rétroéclairage (2) pour rétroéclairer des éléments de commande (3) montés sur le panneau de commande (4), les éléments de rétroéclairage (2) étant disposés de façon à émettre la lumière à distance du panneau de commande (4). De plus, le dispositif de commande (1) comprend à l'arrière un réflecteur (5) qui dirige la lumière émise par les éléments de rétroéclairage sur les éléments de commande (3) du panneau de commande (4). De préférence, les éléments de commande sont des éléments de commande à effleurement. De préférence, les éléments de rétroaction sont montés sur un support (7) qui porte également un poste récepteur à télécommande (10) et/ou un détecteur de lumière du jour (11).
PCT/IB2006/051929 2005-06-17 2006-06-15 Dispositif de commande avec panneau de commande a elements de retroeclairage Ceased WO2006134574A2 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
EP05105351.0 2005-06-17
EP05105351 2005-06-17

Publications (2)

Publication Number Publication Date
WO2006134574A2 true WO2006134574A2 (fr) 2006-12-21
WO2006134574A3 WO2006134574A3 (fr) 2007-05-10

Family

ID=37398751

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/IB2006/051929 Ceased WO2006134574A2 (fr) 2005-06-17 2006-06-15 Dispositif de commande avec panneau de commande a elements de retroeclairage

Country Status (1)

Country Link
WO (1) WO2006134574A2 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102010001653A1 (de) * 2010-02-08 2011-08-11 ZF Friedrichshafen AG, 88046 Beleuchtbare Tastatur
EP3472936B1 (fr) 2016-06-21 2020-07-08 Dr. Schneider Kunststoffwerke GmbH Dispositif comportant au moins une zone pouvant être éclairée

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5521345A (en) * 1994-09-30 1996-05-28 Tokheim Corporation Backlit membrane keypad

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102010001653A1 (de) * 2010-02-08 2011-08-11 ZF Friedrichshafen AG, 88046 Beleuchtbare Tastatur
US8830178B2 (en) 2010-02-08 2014-09-09 Zf Friedrichshafen Ag Illuminatable keyboard
EP3472936B1 (fr) 2016-06-21 2020-07-08 Dr. Schneider Kunststoffwerke GmbH Dispositif comportant au moins une zone pouvant être éclairée

Also Published As

Publication number Publication date
WO2006134574A3 (fr) 2007-05-10

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