EP1681977B1 - Dishwasher with a display device - Google Patents

Dishwasher with a display device Download PDF

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Publication number
EP1681977B1
EP1681977B1 EP04791277A EP04791277A EP1681977B1 EP 1681977 B1 EP1681977 B1 EP 1681977B1 EP 04791277 A EP04791277 A EP 04791277A EP 04791277 A EP04791277 A EP 04791277A EP 1681977 B1 EP1681977 B1 EP 1681977B1
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EP
European Patent Office
Prior art keywords
dishwasher
light beam
display surface
light
display
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EP04791277A
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German (de)
French (fr)
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EP1681977A1 (en
Inventor
Michael Rosenbauer
Bernd Schessl
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BSH Hausgeraete GmbH
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BSH Bosch und Siemens Hausgeraete GmbH
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Priority to PL04791277T priority Critical patent/PL1681977T3/en
Publication of EP1681977A1 publication Critical patent/EP1681977A1/en
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    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
    • A47L15/00—Washing or rinsing machines for crockery or tableware
    • A47L15/42—Details
    • A47L15/4293—Arrangements for programme selection, e.g. control panels; Indication of the selected programme, programme progress or other parameters of the programme, e.g. by using display panels

Definitions

  • the invention relates to a dishwasher with a display device for visible display of information, such. the need to add rinse or rinse aid or make the dishwasher.
  • the display devices usually comprise a plurality of display surfaces which are each provided for displaying a specific information.
  • the display surfaces are each equipped with a light source that illuminates the respective display area when the information in question is to be displayed.
  • Known dishwashers with optical display devices are in US5,243,453A . EP1 332 708A2 and DE8 809 063U1 described.
  • the display devices of the prior art have the disadvantage that multiple display areas are required to display multiple information.
  • the known display devices also have the disadvantage that also different light sources must be used to reproduce different colors.
  • an optical display device which has lighting means for generating a light beam which is directed to at least one display surface, wherein in the beam path of the light beam generated by the light source at least one colored filter disc is arranged, which determines the color of the light beam.
  • the advantage is achieved that filter disks with different colors can already be arranged in the beam path of the light beam generated by the light source when the dishwasher is being produced in the display device, which produces different colors on the display surface. Because different colors, for example, different Thus, due to the choice of colored filter discs, different information about the manufacturer or the range of products of the particular dishwasher can be reproduced on the display surface, without the display device otherwise having to be changed. In this case, it is additionally possible for information to be indicated on the display surface itself, such as, for example, the name of the manufacturer or the type designation of the dishwasher, wherein the display surface of the display device is still backlit in color during operation.
  • Another advantage of the dishwasher according to the invention is that even with dishwashers of different product lines substantially the same display device can be used, since different colors can be generated on the display surface by selecting a filter disc with the appropriate color.
  • the same illuminant can also be used, since the color of the display surface is determined by the selection of the colored filter disc.
  • At least one filter disk is preferably arranged interchangeably in the beam path of the light beam generated by the luminous means between the luminous means and the display surface.
  • a preferably exchangeable arrangement of the filter disk with respect to the direction of the light beam generated by the light source behind the display surface is possible. Both arrangements cause a user of the dishwasher according to the invention to have an appearance of the display surface that lights up in operation in the color determined by the filter disk.
  • the exchangeable arrangement of the colored filter disk in front of or behind the display surface makes it possible for the filter disk to be replaced or replaced later even after the dishwasher has been manufactured.
  • the display surface is at least partially made of transparent, preferably frosted material, as by such a material, the reproduction of one of the information displayed on the display surface and the backlighting of the display surface is particularly effective.
  • the lighting means of the display device is a light-emitting diode which preferably generates white light.
  • a light-emitting diode is characterized on the one hand by low power consumption and on the other hand by low susceptibility to interference.
  • the use of a light source that generates white light has the advantage that the color appearance of the display surface is identically determined solely by the selection of the colored filter disc.
  • a mask is preferably arranged interchangeably in the beam path of the light beam generated by the light source, whose silhouette is projected by the light beam onto the display surface.
  • the light beam generated by the light source can be influenced in order, for example, to project a company logo on the display surface. In this way, however, other information can be displayed on the display area without having to label the display itself.
  • substantially the same display device can be used, as by selecting a mask with the corresponding silhouette different information can be displayed on the display surface. Due to the exchangeable arrangement of the mask, it can also be replaced or replaced later after the dishwasher has been manufactured.
  • the display surface is formed as a liquid crystal display, which is divided into a number of segments whose transparency and / or color is individually variable by an externally applied voltage.
  • a liquid crystal display makes it possible to display information of any kind on the display surface, the number and diversification of the information depending on the arrangement and size of the segments into which the liquid crystal display is divided. It is particularly advantageous if the segments of the liquid crystal display are individually preferably controlled electronically by the program control of the dishwasher. Due to the backlighting of the liquid crystal display by means of the display device according to the invention, the display area can additionally be illuminated in different colors and with different intensity.
  • the intensity of the backlight is increased by the display device according to the invention by a light well is arranged in the beam path of the light beam generated by the light source, which has a reflective surface on its side facing the light beam.
  • the light shaft can be designed so that it focuses the light beam generated by the light source and at least partially reflected in the direction of the display surface.
  • the display device shown in the drawing comprises a light emitting diode 1, which generates a white light beam, which is directed onto a display surface 4 in the direction of arrow A.
  • the light beam passes through an opening in a light shaft 2, which has a reflective surface 7 on its side facing the light beam.
  • the reflecting surface of the light shaft 2 is further formed in a spherical shape so that it focuses the light beam generated by the light emitting diode 1 and at least partially reflected in the direction A to the display surface 4 out.
  • a colored filter disc 3 arranged interchangeably, which determines the color of the light beam.
  • a filter disk 6 can also be arranged behind the display surface 4 with respect to the direction A of the light beam generated by the light-emitting diode 1. Both arrangements cause the display surface 4 to light up in the color determined by the filter disk 3, 6 during operation of the display device. Due to the exchangeable arrangement of the filter disk 3, it can be replaced or replaced later in the production of the dishwasher and also without the display device otherwise having to be changed.
  • a mask 3 can also be interchangeably arranged in the beam path of the light beam from the light-emitting diode 1, the silhouette of which is projected onto the display surface 4 by the light beam.
  • the arrangement of the mask 3 with a specific silhouette of the light beam generated by the light emitting diode 1 can be influenced so that, for example, a company logo or a symbol for the current status of the wash program is projected on the display surface 4. Due to the exchangeable arrangement of the mask 3, these can be replaced or replaced later in the manufacture of the dishwasher and also without the display device otherwise having to be changed.
  • the position in the opening 5 of the light shaft 2 offers, through which the light beam generated by the light-emitting diode 1 falls in the direction of the arrow A.
  • the arrangement of a colored filter disc or mask in the opening 5 of the light shaft 2 has the advantage that it is positioned closer to the light source 1 than in the above-described arrangement 3, 6 in front of or behind the display surface 4. Due to the arrangement in the vicinity of the light emitting diode 1, the colored filter disk or the mask in the opening 5 of the light shaft 2 can be made smaller.
  • the display surface 4 is at least partially made of transparent, preferably made of matted material, whereby the reproduction of a mounted on the display surface information and the backlighting of the display surface is particularly effective.
  • the display surface 4 is formed as a liquid crystal display 4, which is divided into a number of segments (not shown) whose transparency and / or color is individually variable by an externally applied voltage.
  • a liquid crystal display 4 as the display surface 4, it is possible to display information of any kind on the display surface 4, which allows the size and segmentation of the liquid crystal display 4.
  • the segments of the liquid crystal display 4 individually electronically controlled by the program control (not shown) of the dishwasher. Due to the backlighting of the liquid crystal display 4 by means of the display device according to the invention, the display surface 4 can be illuminated in different colors and with different intensity.

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  • Illuminated Signs And Luminous Advertising (AREA)
  • Devices For Indicating Variable Information By Combining Individual Elements (AREA)

Abstract

The invention relates to a dishwasher with a display device that uses a display surface (4) in order to display a plurality of information and light means (1) in order to display different colors. According to the invention, light means are provided, which produce a light beam that is directed to at least one display surface, wherein at least one color filter disk (3) is arranged in the beam path of the light beam produced by the light means, said disk determining the color of the light beam. Based on the selection of the color filter disk, different colors can be produced and different types of information can be reproduced on the display surface, for instance, information on the manufacturer or range of products of the dishwasher in question without having to modify the display device.

Description

Gegenstand der Erfindung ist eine Geschirrspülmaschine mit einer Anzeigevorrichtung zur sichtbaren Anzeige von Informationen, wie z.B. die Notwendigkeit des Nachfüllens von Spül- oder Klarspülmitteln oder das Fabrikat der Geschirrspülmaschine.The invention relates to a dishwasher with a display device for visible display of information, such. the need to add rinse or rinse aid or make the dishwasher.

Es sind bereits Geschirrspülmaschinen mit Anzeigevorrichtungen bekannt, die der sichtbaren Wiedergabe von Informationen dienen, wie z.B. den aktuellen Status des Spülprogramms oder den Füllstand von Spülmittel, Klarspülmittel oder anderen für den Betrieb der Geschirrspülmaschine erforderlichen Mitteln. Bei den bekannten Geschirrspülmaschinen umfassen die Anzeigevorrichtungen in der Regel mehrere Anzeigeflächen die jeweils zur Anzeige einer bestimmten Information vorgesehen sind. Dazu sind die Anzeigeflächen jeweils mit einem Leuchtmittel ausgestattet, das die jeweilige Anzeigefläche erleuchtet, wenn die betreffende Information angezeigt werden soll. Bekannte Geschirrspülmaschinen mit optischen Anzeigevorrichtungen sind in US5 243 453A , EP1 332 708A2 und DE8 809 063U1 beschrieben.There are already known dishwashers with display devices that serve the visible reproduction of information, such as the current status of the wash program or the level of detergent, rinse aid or other means required for the operation of the dishwasher. In the known dishwashers, the display devices usually comprise a plurality of display surfaces which are each provided for displaying a specific information. For this purpose, the display surfaces are each equipped with a light source that illuminates the respective display area when the information in question is to be displayed. Known dishwashers with optical display devices are in US5,243,453A . EP1 332 708A2 and DE8 809 063U1 described.

Die Anzeigevorrichtungen nach dem Stand der Technik haben den Nachteil, dass zur Anzeige mehrerer Informationen mehrere Anzeigeflächen erforderlich sind. Die bekannten Anzeigevorrichtungen haben ferner den Nachteil, dass zur Wiedergabe unterschiedlicher Farben auch unterschiedliche Leuchtmittel verwendet werden müssen.The display devices of the prior art have the disadvantage that multiple display areas are required to display multiple information. The known display devices also have the disadvantage that also different light sources must be used to reproduce different colors.

Aufgabe der vorliegenden Erfindung ist es daher, die oben genannten Nachteile zu beseitigen und eine Geschirrspülmaschine mit einer Anzeigevorrichtung bereitzustellen, die unter Verwendung von einer Anzeigefläche eine Mehrzahl von Informationen anzeigen und bei Verwendung eines Leuchtmittels unterschiedliche Farben darstellen kann.It is therefore an object of the present invention to obviate the above drawbacks and to provide a dishwasher with a display device that can display a plurality of information using a display surface and display different colors when using a light source.

Diese Aufgabe wird durch den erfindungsgemäßen Geschirrspüler mit den Merkmalen gemäß Anspruch 1 gelöst. Vorteilhafte Weiterbildungen der vorliegenden Erfindung sind in den Unteransprüchen 2 bis 9 gekennzeichnet.This object is achieved by the dishwasher according to the invention with the features of claim 1. Advantageous developments of the present invention are characterized in the subclaims 2 to 9.

Bei der erfindungsgemäßen Geschirrspülmaschine ist eine optische Anzeigevorrichtung vorgesehen, die Leuchtmittel zur Erzeugung eines Lichtstrahls aufweist, der auf mindestens eine Anzeigefläche gerichtet ist, wobei im Strahlengang des vom Leuchtmittel erzeugten Lichtstrahls mindestens eine farbige Filterscheibe angeordnet ist, welche die Farbe des Lichtstrahls bestimmt.In the dishwasher according to the invention an optical display device is provided which has lighting means for generating a light beam which is directed to at least one display surface, wherein in the beam path of the light beam generated by the light source at least one colored filter disc is arranged, which determines the color of the light beam.

Mit dem erfindungsgemäßen Geschirrspüler wird der Vorteil erreicht, dass bereits bei der Herstellung der Geschirrspülmaschine in der Anzeigevorrichtung Filterscheiben mit unterschiedlichen Farben im Strahlengang des vom Leuchtmittel erzeugten Lichtstrahls angeordnet werden können, die auf der Anzeigefläche unterschiedliche Farben erzeugen. Da mittels verschiedener Farben beispielsweise unterschiedliche Fabrikate oder Produktreihen von Geschirrspülmaschinen gekennzeichnet werden, kann somit aufgrund der Auswahl der farbigen Filterscheiben unterschiedliche Informationen über den Hersteller oder die Produktreihe des betreffenden Geschirrspülers auf der Anzeigefläche wiedergegeben werden, ohne dass die Anzeigevorrichtung im übrigen verändert werden muss. Dabei ist es zusätzlich möglich, dass auf der Anzeigefläche selbst Informationen angegeben sind, wie z.B. der Name des Herstellers oder die Typenbezeichnung der Geschirrspülmaschine, wobei die Anzeigefläche der Anzeigevorrichtung bei Betrieb noch farblich hinterleuchtet wird.With the dishwasher according to the invention, the advantage is achieved that filter disks with different colors can already be arranged in the beam path of the light beam generated by the light source when the dishwasher is being produced in the display device, which produces different colors on the display surface. Because different colors, for example, different Thus, due to the choice of colored filter discs, different information about the manufacturer or the range of products of the particular dishwasher can be reproduced on the display surface, without the display device otherwise having to be changed. In this case, it is additionally possible for information to be indicated on the display surface itself, such as, for example, the name of the manufacturer or the type designation of the dishwasher, wherein the display surface of the display device is still backlit in color during operation.

Ein weiterer Vorteil des erfindungsgemäßen Geschirrspülers besteht darin, dass auch bei Geschirrspülmaschinen unterschiedlicher Produktreihen im wesentlichen dieselbe Anzeigevorrichtung verwendet werden kann, da durch die Auswahl einer Filterscheibe mit der entsprechenden Farbe unterschiedliche Farben auf der Anzeigefläche erzeugt werden können. Insbesondere kann bei erfindungsgemäßen Geschirrspülmaschinen unterschiedlicher Produktreihen auch dasselbe Leuchtmittel verwendet werden, da durch die Auswahl der farbigen Filterscheibe die Farbe der Anzeigefläche bestimmt wird.Another advantage of the dishwasher according to the invention is that even with dishwashers of different product lines substantially the same display device can be used, since different colors can be generated on the display surface by selecting a filter disc with the appropriate color. In particular, in dishwashers of different product series according to the invention, the same illuminant can also be used, since the color of the display surface is determined by the selection of the colored filter disc.

Bei einer besonders vorteilhaften Ausführungsform der vorliegenden Erfindung ist mindestens eine Filterscheibe im Strahlengang des vom Leuchtmittel erzeugten Lichtstrahls zwischen dem Leuchtmittel und der Anzeigefläche vorzugsweise austauschbar angeordnet ist. Alternativ ist auch eine vorzugsweise austauschbare Anordnung der Filterscheibe bezüglich der Richtung des vom Leuchtmittel erzeugten Lichtstrahls hinter der Anzeigefläche möglich. Beide Anordnungen bewirken, dass sich einem Benutzer der erfindungsgemäßen Geschirrspülmaschine ein Erscheinungsbild der Anzeigefläche bietet, das im Betrieb in der durch die Filterscheibe bestimmten Farbe aufleuchtet. Die austauschbare Anordnung der farbigen Filterscheibe vor oder hinter der Anzeigefläche macht es möglich, dass die Filterscheibe auch nach der Herstellung der Geschirrspülmaschine nachträglich noch ausgewechselt oder ersetzt werden können.In a particularly advantageous embodiment of the present invention, at least one filter disk is preferably arranged interchangeably in the beam path of the light beam generated by the luminous means between the luminous means and the display surface. Alternatively, a preferably exchangeable arrangement of the filter disk with respect to the direction of the light beam generated by the light source behind the display surface is possible. Both arrangements cause a user of the dishwasher according to the invention to have an appearance of the display surface that lights up in operation in the color determined by the filter disk. The exchangeable arrangement of the colored filter disk in front of or behind the display surface makes it possible for the filter disk to be replaced or replaced later even after the dishwasher has been manufactured.

Zweckmäßigerweise ist die Anzeigefläche zumindest teilweise aus transparentem, vorzugsweise mattiertem Material gefertigt, da durch ein solches Material die Wiedergabe einer der auf der Anzeigefläche angebrachten Information sowie die Hinterleuchtung der Anzeigefläche besonders effektiv wirkt.Conveniently, the display surface is at least partially made of transparent, preferably frosted material, as by such a material, the reproduction of one of the information displayed on the display surface and the backlighting of the display surface is particularly effective.

Von besonderem Vorteil ist es, wenn das Leuchtmittel der Anzeigevorrichtung eine Leuchtdiode ist, die vorzugsweise weißes Licht erzeugt. Eine Leuchtdiode zeichnet sich einerseits durch geringen Stromverbrauch und andererseits durch geringe Störanfälligkeit aus. Die Verwendung eines Leuchtmittels, das weißes Licht erzeugt, hat den Vorteil, dass allein durch die Auswahl der farbigen Filterscheibe die farbliche Erscheinung der Anzeigefläche identisch bestimmt wird.It is particularly advantageous if the lighting means of the display device is a light-emitting diode which preferably generates white light. A light-emitting diode is characterized on the one hand by low power consumption and on the other hand by low susceptibility to interference. The use of a light source that generates white light has the advantage that the color appearance of the display surface is identically determined solely by the selection of the colored filter disc.

Bei einer weiteren Ausführungsform der vorliegenden Erfindung ist im Strahlengang des vom Leuchtmittel erzeugten Lichtstrahls eine Maske vorzugsweise austauschbar angeordnet, deren Silhouette vom Lichtstrahl auf die Anzeigefläche projiziert wird. Durch die Anordnung einer Maske mit einer bestimmten Silhouette im Strahlengang kann der vom Leuchtmittel erzeugte Lichtstrahl beeinflusst werden, um beispielsweise ein Firmenlogo auf der Anzeigefläche zu projizieren. Auf diese Weise können jedoch auch andere Informationen auf der Anzeigefläche angezeigt werden, ohne dass die Anzeigefläche selbst beschriftet werden muss. Ferner kann bei Geschirrspülmaschinen unterschiedlicher Produktreihen im wesentlichen dieselbe Anzeigevorrichtung verwendet werden, da durch die Auswahl einer Maske mit der entsprechenden Silhouette unterschiedliche Informationen auf der Anzeigefläche angezeigt werden können. Durch die austauschbare Anordnung der Maske kann diese auch nach der Herstellung der Geschirrspülmaschine nachträglich noch ausgewechselt oder ersetzt werden.In a further embodiment of the present invention, a mask is preferably arranged interchangeably in the beam path of the light beam generated by the light source, whose silhouette is projected by the light beam onto the display surface. By arranging a mask with a specific silhouette in the beam path, the light beam generated by the light source can be influenced in order, for example, to project a company logo on the display surface. In this way, however, other information can be displayed on the display area without having to label the display itself. Furthermore, in dishwashers of different product lines substantially the same display device can be used, as by selecting a mask with the corresponding silhouette different information can be displayed on the display surface. Due to the exchangeable arrangement of the mask, it can also be replaced or replaced later after the dishwasher has been manufactured.

Bei noch einer weiteren Ausführungsform einer Geschirrspülmaschine mit einer Anzeigevorrichtung nach der vorliegenden Erfindung ist die Anzeigefläche als Flüssigkristallanzeige ausgebildet, die in eine Anzahl von Segmenten unterteilt ist, deren Transparenz und/oder Farbe einzeln durch eine von außen angelegte elektrische Spannung veränderbar ist. Die Verwendung einer solchen Flüssigkristallanzeige macht es möglich, dass Informationen beliebiger Art auf der Anzeigefläche angezeigt werden können, wobei die Anzahl und Diversifizierung der Informationen von der Anordnung und Größe der Segmente abhängig ist, in die die Flüssigkristallanzeige unterteilt ist. Dabei ist es besonders vorteilhaft, wenn die Segmente der Flüssigkristallanzeige einzeln vorzugsweise elektronisch von der Programmsteuerung der Geschirrspülmaschine angesteuert werden. Durch die Hinterleuchtung der Flüssigkristallanzeige mittels der erfindungsgemäßen Anzeigevorrichtung kann die Anzeigefläche zusätzlich in unterschiedlichen Farben und mit unterschiedlicher Intensität erleuchtet werden.In still another embodiment of a dishwasher with a display device according to the present invention, the display surface is formed as a liquid crystal display, which is divided into a number of segments whose transparency and / or color is individually variable by an externally applied voltage. The use of such a liquid crystal display makes it possible to display information of any kind on the display surface, the number and diversification of the information depending on the arrangement and size of the segments into which the liquid crystal display is divided. It is particularly advantageous if the segments of the liquid crystal display are individually preferably controlled electronically by the program control of the dishwasher. Due to the backlighting of the liquid crystal display by means of the display device according to the invention, the display area can additionally be illuminated in different colors and with different intensity.

Die Intensität der Hinterleuchtung wird durch die erfindungsgemäße Anzeigevorrichtung gesteigert, indem im Strahlengang des vom Leuchtmittel erzeugten Lichtstrahls ein Lichtschacht angeordnet ist, der auf seiner dem Lichtstrahl zugewandten Seite eine reflektierende Oberfläche aufweist. Zusätzlich kann der Lichtschacht so ausgebildet sein, dass er den vom Leuchtmittel erzeugten Lichtstrahl bündelt und zumindest teilweise in Richtung der Anzeigefläche reflektiert.The intensity of the backlight is increased by the display device according to the invention by a light well is arranged in the beam path of the light beam generated by the light source, which has a reflective surface on its side facing the light beam. In addition, the light shaft can be designed so that it focuses the light beam generated by the light source and at least partially reflected in the direction of the display surface.

Im Folgenden wird die vorliegende Erfindung anhand eines Ausfühnlngsbeispiels unter Bezugnahme auf die beigefügte Zeichnung näher erläutert. Die beigefügte Zeichnung zeigt eine schematische Darstellung einer Anzeigevorrichtung, wie sie beispielsweise in einer Geschirrspülmaschine noch der vorliegenden Erfindung zur Anwendung kommt.In the following, the present invention will be explained in more detail with reference to an embodiment with reference to the accompanying drawings. The accompanying drawing shows a schematic representation of a display device, as for example in a dishwasher nor the present invention for Application comes.

Die in der Zeichnung dargestellte Anzeigevorrichtung umfasst eine Leuchtdiode 1, die einen weißen Lichtstrahl erzeugt, der auf eine Anzeigefläche 4 in Richtung des Pfeils A gerichtet ist. Der Lichtstrahl tritt dabei durch eine Öffnung in einem Lichtschacht 2, der auf seiner dem Lichtstrahl zugewandten Seite eine reflektierende Oberfläche 7 aufweist. Die reflektierende Oberfläche des Lichtschachts 2 ist ferner in einer sphärischen Form ausgebildet, so dass er den von der Leuchtdiode 1 erzeugten Lichtstrahl bündelt und zumindest teilweise in Richtung A zur Anzeigefläche 4 hin reflektiert. Im Strahlengang des von der Leuchtdiode 1 erzeugten Lichtstrahls ist auf dem Weg zur Anzeigefläche 4 eine farbige Filterscheibe 3 austauschbar angeordnet, welche die Farbe des Lichtstrahls bestimmt.The display device shown in the drawing comprises a light emitting diode 1, which generates a white light beam, which is directed onto a display surface 4 in the direction of arrow A. The light beam passes through an opening in a light shaft 2, which has a reflective surface 7 on its side facing the light beam. The reflecting surface of the light shaft 2 is further formed in a spherical shape so that it focuses the light beam generated by the light emitting diode 1 and at least partially reflected in the direction A to the display surface 4 out. In the beam path of the light beam generated by the light emitting diode 1 is on the way to the display surface 4, a colored filter disc 3 arranged interchangeably, which determines the color of the light beam.

Alternativ oder zusätzlich zu der Positionierung der Filterscheibe 3 zwischen der Leuchtdiode 1 und der Anzeigefläche 4 kann auch eine Filterscheibe 6 bezüglich der Richtung A des von der Leuchtdiode 1 erzeugten Lichtstrahls hinter der Anzeigefläche 4 angeordnet sein. Beide Anordnungen bewirken, dass bei Betrieb der Anzeigevorrichtung die Anzeigefläche 4 in der durch die Filterscheibe 3, 6 bestimmten Farbe aufleuchtet. Durch die austauschbare Anordnung der Filterscheibe 3 kann diese bei der Herstellung der Geschirrspülmaschine und auch nachträglich noch ausgewechselt oder ersetzt werden, ohne dass die Anzeigevorrichtung im übrigen verändert werden muss.Alternatively or additionally to the positioning of the filter disk 3 between the light-emitting diode 1 and the display surface 4, a filter disk 6 can also be arranged behind the display surface 4 with respect to the direction A of the light beam generated by the light-emitting diode 1. Both arrangements cause the display surface 4 to light up in the color determined by the filter disk 3, 6 during operation of the display device. Due to the exchangeable arrangement of the filter disk 3, it can be replaced or replaced later in the production of the dishwasher and also without the display device otherwise having to be changed.

Zusätzlich oder anstelle der Filterscheibe kann im Strahlengang des von der Leuchtdiode 1 Lichtstrahls auch eine Maske 3 austauschbar angeordnet sein, deren Silhouette vom Lichtstrahl auf die Anzeigefläche 4 projiziert wird. Durch die Anordnung der Maske 3 mit einer bestimmten Silhouette kann der von der Leuchtdiode 1 erzeugte Lichtstrahl so beeinflusst werden, dass beispielsweise ein Firmenlogo oder ein Symbol für den aktuellen Status des Spülprogramms auf der Anzeigefläche 4 projiziert wird. Durch die austauschbare Anordnung der Maske 3 kann diese bei der Herstellung der Geschirrspülmaschine und auch nachträglich noch ausgewechselt oder ersetzt werden, ohne dass die Anzeigevorrichtung im übrigen verändert werden muss.In addition to or instead of the filter disk, a mask 3 can also be interchangeably arranged in the beam path of the light beam from the light-emitting diode 1, the silhouette of which is projected onto the display surface 4 by the light beam. The arrangement of the mask 3 with a specific silhouette of the light beam generated by the light emitting diode 1 can be influenced so that, for example, a company logo or a symbol for the current status of the wash program is projected on the display surface 4. Due to the exchangeable arrangement of the mask 3, these can be replaced or replaced later in the manufacture of the dishwasher and also without the display device otherwise having to be changed.

Als dritte Möglichkeit zur Anordnung einer farbigen Filterscheibe oder Maske bietet sich die Position in der Öffnung 5 des Lichtschachts 2 an, durch das der von der Leuchtdiode 1 erzeugte Lichtstrahl in Richtung des Pfeils A fällt. Die Anordnung einer farbigen Filterscheibe oder Maske in der Öffnung 5 des Lichtschachts 2 hat den Vorteil, dass sie näher am Leuchtmittel 1 positioniert ist als bei der oben beschriebenen Anordnung 3, 6 vor oder hinter der Anzeigefläche 4. Aufgrund der Anordnung in der Nähe der Leuchtdiode 1 kann die farbige Filterscheibe bzw. die Maske in der Öffnung 5 des Lichtschachts 2 kleiner ausgebildet sein.As a third possibility for the arrangement of a colored filter disc or mask, the position in the opening 5 of the light shaft 2 offers, through which the light beam generated by the light-emitting diode 1 falls in the direction of the arrow A. The arrangement of a colored filter disc or mask in the opening 5 of the light shaft 2 has the advantage that it is positioned closer to the light source 1 than in the above-described arrangement 3, 6 in front of or behind the display surface 4. Due to the arrangement in the vicinity of the light emitting diode 1, the colored filter disk or the mask in the opening 5 of the light shaft 2 can be made smaller.

Die Anzeigefläche 4 ist zumindest teilweise aus transparentem, vorzugsweise mattiertem Material gefertigt, wodurch die Wiedergabe einer auf der Anzeigefläche angebrachten Information sowie die Hinterleuchtung der Anzeigefläche besonders effektiv wird. Bei der in der Zeichnung dargestellten Ausführungsform ist die Anzeigefläche 4 als Flüssigkristallanzeige 4 ausgebildet, die in eine Anzahl von Segmenten (nicht dargestellt) unterteilt ist, deren Transparenz und/oder Farbe einzeln durch eine von außen angelegte elektrische Spannung veränderbar ist. Durch Verwendung einer Flüssigkristallanzeige 4 als Anzeigefläche 4 ist es möglich, Informationen beliebiger Art auf der Anzeigefläche 4 anzuzeigen, welche die Größe und Segmentierung der Flüssigkristallanzeige 4 zulässt. Dazu werden die Segmente der Flüssigkristallanzeige 4 einzeln elektronisch von der Programmsteuerung (nicht dargestellt) der Geschirrspülmaschine angesteuert. Aufgrund der Hinterleuchtung der Flüssigkristallanzeige 4 mittels der erfindungsgemäßen Anzeigevorrichtung kann die Anzeigefläche 4 in unterschiedlichen Farben und mit unterschiedlicher Intensität erleuchtet werden.The display surface 4 is at least partially made of transparent, preferably made of matted material, whereby the reproduction of a mounted on the display surface information and the backlighting of the display surface is particularly effective. In the embodiment shown in the drawing, the display surface 4 is formed as a liquid crystal display 4, which is divided into a number of segments (not shown) whose transparency and / or color is individually variable by an externally applied voltage. By using a liquid crystal display 4 as the display surface 4, it is possible to display information of any kind on the display surface 4, which allows the size and segmentation of the liquid crystal display 4. For this purpose, the segments of the liquid crystal display 4 individually electronically controlled by the program control (not shown) of the dishwasher. Due to the backlighting of the liquid crystal display 4 by means of the display device according to the invention, the display surface 4 can be illuminated in different colors and with different intensity.

Liste der BezugszeichenList of reference numbers

11
Leuchtmittel bzw. LeuchtdiodeLight source or light emitting diode
22
Lichtschachtlight well
33
Filterscheibe bzw. MaskeFilter disc or mask
44
Anzeigefläche bzw. FlüssigkristallanzeigeDisplay surface or liquid crystal display
55
Filterscheibe bzw. MaskeFilter disc or mask
66
Filterscheibefilter disc
77
sphärisch ausgebildete, reflektierende Oberfläche des Lichtschachts 2spherically formed, reflective surface of the light shaft 2
AA
Richtung der LichtstrahlenDirection of the light rays

Claims (9)

  1. Dishwasher with an optical indicating device comprising lighting means (1) for generating a light beam which is directed onto at least one display surface (4), wherein at least one coloured filter disc (3) defining the colour of the light beam is arranged in the beam path of the light beam generated by the lighting means (1), characterised in that a light shaft (2) is arranged in the beam path of the light beam generated by the lighting means (1) and has a reflective surface on its side facing the light beam.
  2. Dishwasher with an indicating device according to claim 1, wherein the at least one filter disc (3) is arranged, preferably exchangeably, in the beam path of the light beam, which is generated by the lighting means (1), between the lighting means (1) and the display surface (4).
  3. Dishwasher with an indicating device according to one of claims 1 and 2, wherein a filter disc (6) is arranged, preferably exchangeably, behind the display surface (4) with respect to the direction (A) of the light beam generated by the lighting means (1).
  4. Dishwasher with an indicating device according to any one of the preceding claims, wherein the display surface (4) is made at least partly from transparent, preferably matt, material.
  5. Dishwasher with an indicating device according to any one of the preceding claims, wherein the display surface (4) is a liquid-crystal display subdivided into a plurality of segments, the transparency and/or colour of which is individually variable by an externally applied electrical voltage.
  6. Dishwasher with an indicating device according to claim 5, wherein the segments of the liquid-crystal display (4) are individually activated, preferably electronically, by the program control of the dishwasher.
  7. Dishwasher with an indicating device according to any one of the preceding claims, wherein a mask (3, 5), the silhouette of which is projected by the light beam onto the display surface (4), is arranged, preferably exchangeably, in the beam path of the light beam generated by the lighting means (1).
  8. Dishwasher with an indicating device according to any one of the preceding claims, wherein the light shaft is so constructed that it focuses the light beam generated by the lighting means (1) and reflects it at least partly in the direction of the display surface (4).
  9. Dishwasher with an indicating device according to any one of the preceding claims, wherein the lighting means (1) is a light-emitting diode preferably generating white light.
EP04791277A 2003-10-27 2004-10-21 Dishwasher with a display device Active EP1681977B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PL04791277T PL1681977T3 (en) 2003-10-27 2004-10-21 Dishwasher with a display device

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10350077.4A DE10350077B4 (en) 2003-10-27 2003-10-27 Dishwasher with display device
PCT/EP2004/052612 WO2005041743A1 (en) 2003-10-27 2004-10-21 Dishwasher with a display device

Publications (2)

Publication Number Publication Date
EP1681977A1 EP1681977A1 (en) 2006-07-26
EP1681977B1 true EP1681977B1 (en) 2012-05-23

Family

ID=34485102

Family Applications (1)

Application Number Title Priority Date Filing Date
EP04791277A Active EP1681977B1 (en) 2003-10-27 2004-10-21 Dishwasher with a display device

Country Status (6)

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US (1) US20070069979A1 (en)
EP (1) EP1681977B1 (en)
DE (1) DE10350077B4 (en)
ES (1) ES2385348T3 (en)
PL (1) PL1681977T3 (en)
WO (1) WO2005041743A1 (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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EP2363055A1 (en) 2010-03-01 2011-09-07 Electrolux Home Products Corporation N.V. Projector and household appliance comprising such a projector

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DE8809063U1 (en) * 1988-07-14 1988-09-01 Bosch-Siemens Hausgeraete Gmbh, 8000 Muenchen, De
JP2875327B2 (en) * 1990-03-02 1999-03-31 株式会社日立製作所 Liquid crystal display
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DE10259762A1 (en) * 2002-12-19 2004-07-01 BSH Bosch und Siemens Hausgeräte GmbH Household appliance, in particular built-in household appliance

Also Published As

Publication number Publication date
DE10350077A1 (en) 2005-05-25
PL1681977T3 (en) 2012-10-31
US20070069979A1 (en) 2007-03-29
ES2385348T3 (en) 2012-07-23
DE10350077B4 (en) 2016-10-20
WO2005041743A1 (en) 2005-05-12
EP1681977A1 (en) 2006-07-26

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