• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
  • 引用文献
  • 法律状态
  • 优先权
    • 专利摘要:
    The invention relates to a panel (2) for a domestic appliance (1), which comprises at least one symbol (7) corresponding to an operation that can be executed by actuating at least one control element (3) to direct the domestic appliance (1). At least one luminescent symbol (13) is applied to a substrate (14) of the panel (2). The luminescent symbol (13) corresponds to the same operation, and is covered by a cover (15) that hides the luminescent symbol (13) under ambient light conditions. The symbol (7) is applied to the coating (15). Also, the invention refers to a domestic appliance (1) with a panel (2) of this type. (Machine-translation by Google Translate, not legally binding)
    公开号:ES2649712A1
    申请号:ES201630955
    申请日:2016-07-13
    公开日:2018-01-15
    发明作者:Jorge ALAMAN AGUILAR；Sergio ALONSO LOZANO；Andrés ANADÓN BAYO；Miguel Angel Bunuel Magdalena；Carlos Gimeno Asin；Fernando Planas Layunta；Juan Ramón Soler Costa
    申请人:BSH Hausgeraete GmbH；BSH Electrodomesticos Espana SA；
    IPC主号:
    专利说明:

    The invention refers to a panel for a domestic appliance. The panel comprises at least one symbol corresponding to an operation that can be executed by actuating at least one control element to direct the domestic appliance. Also, the invention refers to a household appliance with at least one panel.
    Certain household appliances such as dishwashers, washing machines, cooking appliances, and the like, have control elements such as buttons for turning the household appliance on or off. To identify this control element, a symbol is often provided next to the control element or on the control element.
    When a user of household appliances enters a room without ambient light, for example, at night before the user turns on an artificial light in the room, the user cannot see the symbol on the panel of the household appliance. Therefore, the user needs to turn on the light in the room to find the control element, for example, a switch to turn the household appliance on or off. This increases energy consumption compared to a situation in which the user does not turn on the room light.
    Accordingly, the present invention solves the technical problem of providing a panel and a domestic appliance of the type mentioned at the beginning, which makes it possible to reduce energy consumption.
    This technical problem is solved by a panel and by a domestic appliance with the characteristics of the respective independent claims. In the dependent claims, advantageous configurations are specified with other convenient developments of the invention.
    The panel according to the invention for a household appliance comprises at least one symbol. The symbol corresponds to an operation that can be executed by actuating at least one control element. The control element is configured to direct the household appliance. At least one luminescent symbol is applied to a panel substrate. The luminescent symbol corresponds to the


    same operation, that is, with the operation that can be executed by actuating the control element. The luminescent symbol is covered by a coating that hides the luminescent symbol in ambient light conditions. That “the coating hides the symbol in ambient light conditions” means that it is shielded in the user's view, that is, it cannot be seen in ambient light. The symbol corresponding to the operation is applied to the coating. The symbol and the luminescent symbol that correspond to the same operation may, for example, be and / or comprise signs, graphic representations, letters, numbers, words, or the like. As an example in household appliances such as dishwashers, washing machines, or dryers, there are several symbols that indicate a particular program and / or parameters of a particular program. To activate the program, the user usually has to operate a control element such as a push button, a switch, a rotary handle, or the like. The symbol (and the luminescent symbol) may be located next to or adjacent to the control element or on the control element.
    The symbol, which is visible in ambient light conditions and that is applied to the coating, "corresponds" to the operation that can be executed by actuating the control element, if the symbol illustrates or identifies the operation. With ambient light conditions, the luminescent symbol is hidden under the coating, that is, it is not visible. Therefore, the luminescent symbol does not negatively affect the aesthetics of the panel or control panel.
    However, since the luminescent symbol emits light that can be seen when there is no ambient light or when there is little ambient light, the user can find or locate the control element with which the luminescent symbol corresponds when entering a night room in which the domestic appliance is located. Therefore, it is not necessary for the user to turn on the light in this room to see the luminescent symbol. This is thanks to the fact that the luminescent symbol emits light that passes through the coating that covers the luminescent symbol. This light can be seen at night. Therefore, the panel makes it possible to reduce energy consumption, thus achieving an improvement in energy efficiency.
    On the other hand, a new aesthetic is provided by at least one luminescent symbol that emits light or is visible when there is no or there is little ambient light. In addition, the user's desire regarding the follow-up of new trends and the latest innovations can be satisfied thanks to the panel with the luminescent symbol covered by the coating. Also, the application of such symbols


    Luminescent to a variety of panel substrates can be implemented easily and quickly.
    Luminescence refers to processes that cause an emission of light, the origin of which may be other than high temperatures. Therefore, luminescence is also used for light emission processes that take place at room temperature and at low temperature. A specific type of photoluminescence that can be used to make the luminescent symbol visible when there is no ambient light is called phosphorescence. The phosphorescent material does not immediately re-emit the radiation it absorbs, but instead re-emits the absorbed radiation slowly and at a lower intensity for a period of up to several hours after the original excitation. Such phosphorescent materials are called "glow in the dark" materials. Therefore, in particular phosphorescent materials can be used to provide the luminescent symbol on the panel substrate.
    Preferably, at least one component of the symbol corresponding to the operation and at least one component of the luminescent symbol are geometrically similar. In other words, these components have the same shape and can be obtained from the other by increasing or shrinking it evenly. In particular, the complete symbol corresponding to the operation and the complete luminescent symbol may be geometrically similar. This makes it particularly easy for the user to recognize the operation illustrated by the symbol in ambient light conditions and by the luminescent symbol when there is no ambient light. Therefore, the operation of the domestic appliance is facilitated by actuating the control element even if there is no ambient light.
    Preferably, the luminescent symbol is made by applying to the substrate an ink containing phosphorescent pigments. Usually, the symbol indicating the operation to be performed is made of an ink that can be applied using an appropriate printing technique. Therefore, the same equipment can be used to apply the luminescent symbol to the substrate, if the symbol is made of a printable ink. This makes the application of the luminescent symbol to the substrate particularly easy. In addition, the designs of the symbol corresponding to the operation and the luminescent symbol corresponding to the same operation may be the same or at least geometrically similar. Therefore, the implementation is particularly simple.
    Currently, screen printing or screen printing is used to apply symbols to a panel for a household appliance. Therefore, it is advantageous if the at least one


    Luminescent symbol was obtained by applying the ink containing phosphorescent pigments to the substrate by using a screen printing technique.
    Inks that can be applied by printing techniques such as screen printing can be easily obtained, for example, from Nazdar Ink Technologies. The inks of this supplier can be applied by screen printing using a mesh between 120 and 240 threads / cm. These inks may be configured to be cured by ultraviolet radiation, for example, by moving the panel relative to the ultraviolet light source at a speed of approximately 200 mm / second, while the power of the ultraviolet light may be between 80 W / cm2 and 200 W / cm2. By curing the ink containing the phosphorescent pigments, a particularly good fixation of the ink to the substrate and great durability of the luminescent symbol can be obtained.
    In addition, inks such as those mentioned above can be easily mixed with phosphorescent or fluorescent pigments to obtain the desired behavior, that is, the emission of light when there is no ambient light, while the luminescent symbol is hidden being invisible under the coating under conditions. of ambient light.
    In particular, phosphorescent pigments from the supplier LumiNova® can be used, for example, pigments that are available under the reference LumiNova® G-300M PS-2. Such phosphorescent pigments have appropriate properties to be mixed with inks, in particular, with screen-printable inks.
    Preferably, the coating is made by the physical deposition in the gas phase (PVD) of at least one layer on the substrate on which the luminescent symbol is present. By using the technique of physical deposition in the gas phase, very thin coatings can be obtained that show the desired behavior, that is, that allow the light of the luminescent symbol to pass through them when there is no ambient light, to the once they make the luminescent symbol invisible in ambient light conditions. It has been shown that cathodic spray deposition is appropriate for applying the coating to the substrate. However, other vacuum deposition techniques such as cathodic arc deposition or pulsed laser deposition can also be used.
    Gaseous phase physical deposition techniques are suitable for depositing a wide variety of materials. By way of example, metals, dielectric materials,


    Insulating materials, alloys, and compounds can be easily deposited on the substrate in accordance with the desired panel design. Expressed in other words, there are practically no limitations from the material point of view.
    Preferably, the coating comprises multiple layers. Through a multilayer structure of the coating, it is possible to obtain the desired optical behavior with particular ease. Here, the coating composition and layer thickness can be easily adjusted to obtain the desired effect. Depending on the light emitted by the luminescent ink and, therefore, depending on the light that should be seen through the coating, the composition or recipe of the coating can be easily optimized if the coating comprises the multiple layers.
    The at least one layer may be composed of more than one material. In particular, if a cathodic spray deposition technique is used, this can be achieved by using at least two cathodes as cathodic spray targets, which evaporate at the same time. However, subsequent layers composed of a pure material can also be obtained if at least two cathodes evaporate for subsequent periods of time. The software for controlling an apparatus for sputtering deposition allows switching on and off the power supplies to the cathodes and anodes correspondingly to achieve the desired results.
    Preferably, the coating comprises at least one light absorbing layer. Such a light absorbing layer can be used to prevent all wavelengths of visible ambient light from passing through the coating. This helps to make the luminescent symbol invisible in ambient light conditions. However, this light absorbing layer is configured to allow the light emitted by the luminescent symbol to pass through it. Therefore, the light absorbing layer can selectively absorb light, for example, depending on its wavelength.
    Preferably or additionally, the coating comprises at least one layer of a dielectric material. By including at least one dielectric layer, the optical properties of the coating can be easily adjusted to show the desired behavior. Also, multilayer coatings comprising dielectric layers are known from applications used for ceramic hobs.


    By way of example, such multilayer coatings are used in induction hobs to hide electronics or any other element that is arranged under the coating. However, such coatings allow light from light sources such as light emitting diodes (LEDs) to pass through the coating.
    Accordingly, appropriate coatings with the desired behavior can be easily obtained from glass ceramic applications in which PVD coatings are used to hide, for example, tactile control mechanisms. Therefore, it is possible to easily use different multilayer based PVD coatings, which have already been developed for induction countertops for optical purposes, to hide the at least one luminescent symbol applied to the panel substrate in ambient light conditions.
    Preferably, the coating comprises at least one layer of silicon aluminum nitrides and / or at least one layer of germanium and / or germanium oxides. In particular if such layers are used in a multilayer coating, the desired optical effect can be easily obtained.
    Preferably, the coating has a thickness of about 1 µm. The thickness of the layer may preferably be between 200 nm and 1 µm. Such thicknesses are sufficient to allow the light emitted by the luminescent ink to pass and thus make the luminescent symbol visible in the dark, while the coating safely conceals the luminescent symbol in ambient light conditions.
    Preferably, the coating gives the panel the appearance of metal. This metallic effect of the panel can be easily achieved by using physical deposition techniques in the gas phase to coat the substrate on which the luminescent symbol is present. Therefore, without the use of expensive materials such as, for example, stainless steel, the appearance or aesthetics corresponding to stainless steel can be conferred on the panel.
    Preferably, the panel substrate may be made of at least one polymer. In other words, a polymeric control panel for the domestic appliance can be provided with the luminescent symbol.
    It is not mandatory to duplicate all the symbols that are present on the panel covering by luminescent symbols, but it is sufficient to duplicate only some key symbols by the luminescent symbols, by


    For example, those symbols that correspond to the operations of the household appliance chosen most frequently.
    Therefore, the at least one symbol may correspond in particular with a control element for turning the home appliance on and / or off. Once the on / off button or control element has been operated, this is usually indicated by switching on a light source of the household appliance. This light source may be sufficient in many cases to easily find other control elements, for example, to choose the desired program, even if there is no more ambient light (such as a light source in the room in which the household appliance is located or such as daylight).
    The household appliance according to the invention comprises at least one panel according to the invention. In addition, the household appliance comprises at least one control element with which the at least one symbol and the at least one luminescent symbol correspond.
    The household appliance may be, for example, a dishwasher, a washing machine, a dryer, or a washer-dryer, a cooking appliance such as an oven or microwave oven, a refrigerator and / or freezer, a coffee maker, a Kettle, a kitchen robot, or the like.
    The preferred advantages and embodiments described with respect to the panel according to the invention are equally applicable to the domestic appliance according to the invention.
    The features and combinations of features mentioned above in the description, as well as the features and combinations of features mentioned below in the description of the figures and / or shown alone in the figures are usable not only in the combination indicated in each case, but also in other combinations or separately, without abandoning the scope of the invention. Therefore, it should be understood that those embodiments that are not explicitly shown in the figures or explained, but which can be extracted through combinations of features separate from the exposed embodiments set forth are also understood and disclosed by the invention. . Therefore, those embodiments and combinations of features that do not have all the features of an independent claim originally formulated will also be considered disclosed.


    Other advantages, features and details of the invention can be drawn from the claims, the following description of the preferred embodiments, as well as based on the drawings, in which the elements with analogous functions are accompanied by the same reference symbols. Here, they show:
    Fig. 1 a front view of a control panel of a household appliance in the form of a dishwasher;
    Fig 2 in a schematic, enlarged view, a detail of the control panel comprising an on / off symbol;
    Fig. 3 the detail according to figure 2 in its appearance in ambient light conditions;
    Fig. 4 the detail according to figure 2 in its appearance when there is no ambient light;
    Fig. 5 schematically, a spray deposition process
    cathodic to create a phase physical deposition coating
    soda (PVD) on a substrate of the control panel; Y
    Fig. 6 schematically, a sectional view of a multilayer coating
    obtained by a physical gas deposition process such as
    cathodic spray deposition.
    The indications "top", "bottom", "top", "bottom", "floor", "horizontal", "vertical", "depth direction", "width direction", "direction of the height ”, and the like, refer to the positions and orientations of the domestic appliance 1 (see figure 1) in its intended use position with respect to an observer located in front of the domestic appliance 1 and looking towards it.
    Figure 1 partially shows a household appliance 1, which is shown by way of example as a dishwasher. However, the domestic appliance 1 can also be configured as a washing machine, dryer, cooking appliance, or the like. The domestic appliance 1 comprises a panel 2 or control panel with multiple control elements. The control elements comprise, for example, a button 3 for turning the home appliance on and off 1. Other control elements such as the control keys 4 can be operated by the user to select a desired program. In addition, panel 2 comprises control elements such as start button 5 and other buttons 6 to select


    other programs and / or options. However, a variety of other control elements and / or additional control elements may be provided in different household appliances 1 with respect to the dishwasher shown by way of example.
    Panel 2 also includes symbols 7, 8, 9, 10 in the form of signs, text, graphic representations, or the like. Symbols 7, 8, 9, 10 are located next to the corresponding control element of panel 2. By way of example, symbol 7 comprises components in the form of circle 11 and bar 12 within circle 11. Said symbol 7 indicates often that a household appliance 1 can be turned on and off by actuating the control element located next to the symbol 7, such as the button 3 shown in figure 1. In variants of the home appliance 1, the symbol 7 can be directly present on button 3.
    Similarly, the symbols 8 correspond to the operations that can be executed by pressing the control keys 4. Therefore, the symbols 8 indicate the different programs that can be chosen. In addition, for example the symbol 10 in the form of the word "start" indicates that the program can be started by pressing the start button 5 located below the symbol 10.
    Normally, the symbols 7, 8, 9, 10 are printed on the panel 2 and can be seen in ambient light conditions, for example, when the light in the room where the domestic appliance is located 1 is on or when there is light of the day However, when there is no ambient light, such as during the night when no artificial light source is on in the room, symbols 7, 8, 9, 10 cannot be seen by the user.
    However, the household appliance 1 shown in Figure 1 allows the function, for example, of button 3 to be identified. To achieve this, a luminescent symbol 13 (see Figure 2) is printed on a substrate 14 of panel 2. The luminescent symbol 13 is shown by way of example as a duplicate of the symbol 7, that is, as the symbol indicating the location of the on / off button 3 of the domestic appliance 1. However, at least one of and, in particular, all the symbols 8, 9, 10 of panel 2 may be duplicated by luminescent symbols in the same way.
    The substrate 14 of the control panel or panel 2 may, for example, be made of a polymeric material. Then, the luminescent symbol 13 is applied to this substrate 14. However, inks with luminescent particles, in particular phosphorescent particles, often do not have good aesthetic properties. Expressed from another


    Thus, since luminescent inks, that is, inks with luminescent pigments, in particular phosphorescent, are not totally invisible, the appearance of the symbol 13 made of such luminescent ink could adversely affect the overall aesthetic appearance of panel 2. Therefore , it is preferable if the luminescent symbol 13 is invisible in ambient light conditions, that is, in those conditions in which the symbol 7 is visible.
    This is achieved by providing a coating 15 covering the luminescent symbol 13. However, this coating 15 is semi-transparent. Accordingly, the coating 15 conceals the luminescent symbol 13 when there is ambient light, but the light emitted from the luminescent symbol 13 can pass through the coating 15 and, therefore, is visible when there is no or there is little ambient light.
    Preferably, the luminescent symbol 13 is geometrically similar to the symbol 7. Accordingly, the luminescent symbol 13 comprises the same components as the symbol 7. In the example shown in Figure 2, the luminescent symbol 13 also thus comprises a circle 16 and a bar 17 arranged within circle 16. By way of example, circle 16 may be slightly larger than circle 11, and bar 17 may be slightly larger than bar 12. In variants, geometric relationships may be reversed. for at least one of these components, for example.
    The symbol 7 comprising the circle 11 and the bar 12 is printed on the cover 15. Therefore, the sequence from the back to the front of the figure 2 is first the substrate 14 of the control panel 2, then, the symbol 13 made of luminescent ink, that is, an ink with phosphorescent pigments, then the semi-transparent coating 15 and then the symbol 7 made of standard ink on the top of the coating 15. Accordingly, the optical coating 15 it is applied to hide the design of the luminescent symbol 13. However, this coating 15 allows the light to pass through it when there is no ambient light and the luminescent symbol 13 made of luminescent ink emits light and, therefore, can be seen by the user that panel 2 is watching.
    Therefore, the representation of Figure 2 is just an illustration that represents all the different components of panel 2 schematically. However, the luminescent ink constituting the luminescent symbol 13 is visible only when there is no ambient light. On the other hand, the symbol 7, which is printed on the coating 15, is visible when there is ambient light.


    To illustrate this operation, Figure 3 shows the detail of the panel 2 comprising the symbol 7 when there is ambient light. Thus, Figure 3 shows the standard view of the design of the symbol 7. Expressed in another way, Figure 3 shows the traditional decoration or standard decoration of the panel 2 comprising the symbol 7.
    In order to illustrate how this design can be seen in different environments, Figure 4 illustrates the appearance of the section of panel 2 shown in Figure 3 when there is no ambient light. Thus, Figure 4 shows the new view of the design in dark environmental conditions. In such a situation, only the luminescent symbol 13 is visible, which comprises as components the circle 16 and the bar 17 in the example shown. The light emitted by the phosphorescent pigments of the ink used to print the luminescent symbol 13 on the substrate 14 passes through the semi-transparent coating 15. The luminescent ink used to create the luminescent symbol 13 may, for example, be applied to the substrate 14 by screen printing and subsequent curing, in particular, by ultraviolet radiation.
    A gas phase physical deposition (PVD) technique can be used to provide the semi-transparent coating 15 as a very thin film on the substrate 14 on which the at least one luminescent symbol 13 is present.
    Figure 5 shows a PVD arrangement whereby the substrate 14 of the panel 2 is provided with the coating 15 after the luminescent symbol 13 has been printed or otherwise applied to the substrate 14. The process of physical deposition in the gas phase can be take place in a chamber 18 in, for example, high vacuum conditions, that is, a pressure between 10-5 bars and 10-7 bars. An electric shock is caused between the substrate 14, which is at the same electrical potential as the anode 22 in the sputtering process illustrated in Figure 5, and the material to be deposited as a coating 15. This material is provided by a cathode 19, which is also called objective. The collisions between the ionized particles 20 of a gas or plasma and the cathode 19 or target generate the ejection of particles 21 of the solid material constituting the cathode 19. Therefore, the cathode material 19 evaporates as a consequence of the environmental conditions within of the chamber 18 and of the electrical potentials of the cathode 19 and the anode 22 carrying the substrate 14.
    In Fig. 5, the arrows 23 illustrate the movement of the gas particles 20 towards the objective of the cathode or cathode spray 19, and other arrows 24 illustrate the movement of the particles 21 (which can also be oxidized by the oxygen present 25 in the chamber 18) of the lens towards the substrate 14. However, they can


    use other PVD technologies other than cathodic spray deposition shown by way of example to provide coating 15 on the substrate
    14. By way of example, cathodic arc deposition and pulsed laser deposition can also be used.
    In general, such PVD technologies generate very thin films, in particular of different materials on a wide variety of substrates 14. The conditions in chamber 18, for example, temperature, pressure, gas mixture, tension, and The time to establish the coating 15 can be optimized for each process. All these conditions influence the properties of the thin coating 15 and the final behavior of the latter. As an example, it is possible to obtain simple layers by using only one material as a target. Multilayers can be obtained by evaporating at least two different materials as targets or cathodes 19. As an example, tension can be applied to the different cathodes 19 for subsequent periods of time to create subsequent layers of different materials as coating 15. Yes two materials of two cathodes 19 are evaporated at the same time, a coating 15 comprising two materials in one layer can be obtained.
    Preferably, the semi-transparency of the coating 15 is obtained by providing it as a multilayer composition on the substrate 14 with the luminescent symbol 13. In Figure 6, an example of such a multilayer coating 15 is schematically shown.
    Accordingly, the coating 15 may comprise a first layer 26 which may have dielectric properties and which may, for example, be composed of silicon aluminum nitrides in a thickness of, for example, 72 nm. This layer 26 is the front layer on which the symbol 7 is present. In other words, on a surface 27 of this layer 26 the symbol 7 is applied, for example, by printing, in particular, screen printing. The second layer 28 of the coating 15 may be an absorbent dielectric material and may, for example, be composed of germanium and / or germanium oxides and have a thickness of, for example, 8 nm. The third layer 29 may again be composed of silicon aluminum nitrides and have a thickness of 32 nm. Under this third layer 29, the fourth layer 30 may again be an absorbing dielectric layer of germanium and / or germanium oxides and have a thickness of, for example, 47 nm.
    Finally, the fifth layer 31 may again be composed of silicon aluminum nitrides as a dielectric material and have a thickness of, for example, 60 nm. Such


    coating 15 is optimized with respect to the materials, the thickness of each of the layers 26, 28, 29, 30, 31, and the amount of layers 26, 28, 29, 30, 31 in accordance with the reflection indices and the refractive indices of each of the layers 26, 28, 29, 30, 31. Since the optical indices of the materials are known
    5 used for layer 26, 28, 29, 30, 31, that is, the transmission index and the reflection index, the overall transmission index of the coating 15 can be optimized depending on the light emitted from the luminescent symbol 13 behind of the coating 15.
    By combining the different materials and thicknesses of such
    10 multilayer coatings 15 and taking into account the optical indexes of the materials, the desired behavior of the coating 15 can be obtained. By modifying the thickness of each of the layers 26, 28, 29, 30, 31, the material, the order and / or the amount of layers 26, 28, 29, 30, 31, the overall behavior of the coating 15 can be adjusted to hide the luminescent symbol 13 in
    15 ambient light conditions, on the one hand, but to allow the light of the luminescent symbol 13 to pass through the coating 15 in the dark, on the other hand.
    By using luminescent inks to provide luminescent symbols such as luminescent symbol 13 and providing semi-transparent PVD coating 15, a panel 2 decoration that conceals a design can be obtained
    20 when there is ambient light, but make it visible when there is no ambient light.
    one Domestic appliance
    2 Panel
    3 Button
    4 Command key
    5 Start button
    6 Button
    7 Symbol
    8 Symbol
    9 Symbol
    10 Symbol
    eleven Circle
    12 Bar
    13 Luminescent symbol
    14 Substrate
    fifteen Covering
    16 Circle
    17 Bar
    18 Camera
    19 Cathode
    twenty Particle
    twenty-one Particle
    22 Anode
    2. 3 Arrow
    24 Arrow
    25 Oxygen
    26 Cap
    27 Surface
    28 Cap
    29 Cap
    30 Cap
    31 Cap


    Reference symbols

    权利要求:
    Claims (11)
    [1]
    1. Panel for a domestic appliance (1), which comprises at least one symbol (7, 8, 9, 10) corresponding to an operation that can be executed by operating at least one control element (3, 4, 5 , 6) to direct the
    5 domestic appliance (1), characterized in that at least one luminescent symbol
    (13) is applied to a substrate (14) of the panel (2), where the luminescent symbol (13) corresponds to the same operation, where the luminescent symbol (13) is covered by a coating (15) that hides the symbol luminescent (13) in ambient light conditions, and where the symbol
    10 (7, 8, 9, 10) is applied to the coating (15).
    [2]
    2. Panel according to claim 1, characterized in that at least one component (11, 12) of the symbol (7) corresponding to the operation and at least one component (16, 17) of the luminescent symbol (13) are similar
    15 geometrically.
    [3]
    3. Panel according to claims 1 or 2, characterized in that the luminescent symbol (13) is made by applying, in particular, by screen printing, of an ink, in particular, of an ink that can be cured by
    20 ultraviolet radiation, which contains phosphorescent pigments, to the substrate (14).
    [4]
    4. Panel according to any one of claims 1 to 3, characterized in that the coating (15) is made by physical deposition in the gas phase, in particular, sputtering, of at least one
    25 layer (26, 28, 29, 30, 31) on the substrate (14) on which the luminescent symbol (13) is present.
    [5]
    5. Panel according to any of claims 1 to 4, characterized in that the coating (15) comprises multiple layers (26, 28, 29, 30, 31).
    [6]
    Panel according to any one of claims 1 to 5, characterized in that the coating (15) comprises at least one light absorbing layer (28, 30) and / or at least one layer (26, 29, 31) of a dielectric material .
    Panel according to any one of claims 1 to 6, characterized in that the coating (15) comprises at least one layer (26, 29, 31) of nitrides of

    silicon aluminum and / or at least one layer (28, 30) of germanium and / or germanium oxides.
    [8]
    8. Panel according to any of claims 1 to 7, characterized in that the
    The coating (15) has a thickness of approximately 1 µm, preferably between 200 nm and 1 µm.
    [9]
    9. Panel according to any of claims 1 to 8, characterized in that the coating (15) gives the panel (2) the appearance of metal.
    [10]
    10. Panel according to any one of claims 1 to 9, characterized in that the substrate (14) of the panel (2) is made of at least one polymer.
    [11]
    eleven. Panel according to any of claims 1 to 10, characterized in that the
    15 symbol (7) corresponds to a control element (3) to turn the household appliance on and off (1).
    [12]
    12. Domestic appliance with at least one panel (2) according to any one of claims 1 to 11 and with at least one control element (3, 4, 5, 6) with
    20 which corresponds to the at least one symbol (7, 8, 9, 10) and the at least one luminescent symbol (13).



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    同族专利:
    公开号 | 公开日
    ES2649712B1|2018-10-24|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    EP0139281A1|1983-10-11|1985-05-02|GTE Products Corporation|A thin film electroluminescent display device|
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