EP3762653A1 - Haushaltsgerät mit einer anzeigeeinrichtung mit intensitätsvariablen lichtbild, sowie verfahren - Google Patents
Haushaltsgerät mit einer anzeigeeinrichtung mit intensitätsvariablen lichtbild, sowie verfahrenInfo
- Publication number
- EP3762653A1 EP3762653A1 EP18826678.7A EP18826678A EP3762653A1 EP 3762653 A1 EP3762653 A1 EP 3762653A1 EP 18826678 A EP18826678 A EP 18826678A EP 3762653 A1 EP3762653 A1 EP 3762653A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- light
- luminous
- area
- region
- cone
- 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.)
- Granted
Links
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- 238000005286 illumination Methods 0.000 claims abstract description 21
- 238000005192 partition Methods 0.000 claims description 89
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Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24C—DOMESTIC STOVES OR RANGES ; DETAILS OF DOMESTIC STOVES OR RANGES, OF GENERAL APPLICATION
- F24C7/00—Stoves or ranges heated by electric energy
- F24C7/08—Arrangement or mounting of control or safety devices
- F24C7/082—Arrangement or mounting of control or safety devices on ranges, e.g. control panels, illumination
-
- 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
- A47L11/00—Machines for cleaning floors, carpets, furniture, walls, or wall coverings
- A47L11/34—Machines for treating carpets in position by liquid, foam, or vapour, e.g. by steam
-
- 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
- A47L11/00—Machines for cleaning floors, carpets, furniture, walls, or wall coverings
- A47L11/40—Parts or details of machines not provided for in groups A47L11/02 - A47L11/38, or not restricted to one of these groups, e.g. handles, arrangements of switches, skirts, buffers, levers
- A47L11/4002—Installations of electric equipment
- A47L11/4008—Arrangements of switches, indicators or the like
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
- D06F34/00—Details of control systems for washing machines, washer-dryers or laundry dryers
- D06F34/28—Arrangements for program selection, e.g. control panels therefor; Arrangements for indicating program parameters, e.g. the selected program or its progress
- D06F34/32—Arrangements for program selection, e.g. control panels therefor; Arrangements for indicating program parameters, e.g. the selected program or its progress characterised by graphical features, e.g. touchscreens
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
- F21V11/00—Screens not covered by groups F21V1/00, F21V3/00, F21V7/00 or F21V9/00
- F21V11/16—Screens not covered by groups F21V1/00, F21V3/00, F21V7/00 or F21V9/00 using sheets without apertures, e.g. fixed
-
- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
- G09F13/00—Illuminated signs; Luminous advertising
- G09F13/04—Signs, boards or panels, illuminated from behind the insignia
- G09F13/0409—Arrangements for homogeneous illumination of the display surface, e.g. using a layer having a non-uniform transparency
-
- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
- G09F23/00—Advertising on or in specific articles, e.g. ashtrays, letter-boxes
- G09F23/0058—Advertising on or in specific articles, e.g. ashtrays, letter-boxes on electrical household appliances, e.g. on a dishwasher, a washing machine or a refrigerator
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO THE FORM OR THE KIND OF THE LIGHT SOURCES OR OF THE COLOUR OF THE LIGHT EMITTED
- F21Y2103/00—Elongate light sources, e.g. fluorescent tubes
- F21Y2103/10—Elongate light sources, e.g. fluorescent tubes comprising a linear array of point-like light-generating elements
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO THE FORM OR THE KIND OF THE LIGHT SOURCES OR OF THE COLOUR OF THE LIGHT EMITTED
- F21Y2115/00—Light-generating elements of semiconductor light sources
- F21Y2115/10—Light-emitting diodes [LED]
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
- F25D2400/00—General features of, or devices for refrigerators, cold rooms, ice-boxes, or for cooling or freezing apparatus not covered by any other subclass
- F25D2400/36—Visual displays
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
- F25D29/00—Arrangement or mounting of control or safety devices
- F25D29/005—Mounting of control devices
-
- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
- G09F13/00—Illuminated signs; Luminous advertising
- G09F13/04—Signs, boards or panels, illuminated from behind the insignia
- G09F13/0413—Frames or casing structures therefor
Definitions
- Household appliance with a display device with
- the present invention relates to a household appliance with a display device. Furthermore, the invention relates to a method for operating a display device of a household appliance.
- display devices are often used to provide an operating value of the home appliance to a user of the home appliance
- Such display devices may comprise bar displays which are adapted to show a progress of the domestic appliance, e.g. to indicate the progress of an operating program of the household appliance.
- the boundaries of the progressing bar must be visually clearly recognizable to the user on the display device.
- expensive light guides which are difficult to install, are often used for this purpose.
- the object according to the invention is achieved by a domestic appliance having a device wall, and a display device for displaying an operating value of the domestic appliance, wherein the display device is arranged on the device wall, wherein a luminous surface facing an outer region of the domestic appliance is arranged on a display front side of the display device, the Display device a plurality of juxtaposed and through
- Partitions having mutually delimited lighting areas, wherein in each luminous area in each case a luminous element is arranged and adapted to emit light in the direction of the luminous surface, wherein the partitions extend in sections from the back of the display device in the direction of the luminous surface, wherein each adjacent partitions delimiting a light cone of the emitted light, wherein the partition walls each have a partition wall end, which is spaced from the luminous surface, wherein between the respective partition wall end and the luminous surface in each case one
- Overlap region is arranged, and wherein in the respective overlap region in each case adjacent light cones overlap in order to ensure a uniform illumination of the luminous surface.
- Light intensity is displayed, wherein in the first area at least three
- the number of overlapping light cones is smaller than the number of overlapping light cones in the first surface region and larger than the number of overlapping light cones in the second surface region.
- the brightness with which light is emitted by the at least one light-emitting element which forms a light cone of the second surface area is different than the brightness with which light from at least one
- Luminous element is emitted, which forms a cone of light of the first surface area.
- a transition region is formed between the first surface region and the second surface region, in which the light intensity, in particular
- the light image is displayed with a, in particular uniform, light intensity change between the first and the second light intensity.
- This also forms an optical decay effect in the light image.
- Even defined areas with desired different light intensities can thus be generated without optically abruptly perceived transition.
- a soft and no abrupt transition of intensity is possible.
- at least three light cones overlap in the first area area. In the transition region, the number of overlapping light cones is smaller than the number of overlapping light cones in the first surface region and larger than the number of overlapping light cones in the second surface region.
- the number of overlapping light cones in the transition region, starting from the subregion of the transition region which adjoins the second surface region, is reduced to that subregion which adjoins the second surface region, in particular also successively. This means, for example, that if in the second
- Subarea, which adjoins the first surface area overlap three light cones and overlap two light cones in the subarea, which adjoins the second surface area.
- the number of light cones that overlap in the subregions of the transition area itself can also be changed. In other words, if n light cones overlap in the first surface region, then in the subregion adjoining the first surface region, in particular n-1 light cones overlap.
- the light image is a light bar or a light line, and at least a second area area is an end area of the light bar.
- the light bar may be rectilinear or at least partially curved. For example, it may have a C-shape or an S-shape or a circle or a freeform.
- the partitions are arranged such that the number of
- overlapping light cones in the first area area is greater than in the second area area. This makes it possible to achieve a very localized light intensity change.
- At least three light cones preferably overlap at least in regions in the first surface area.
- the household appliance has a control unit or a
- Control on with which the brightness of a light-emitting element is dimmable, in particular between 0% and 100% is dimmable. This creates the possibility of precisely achieving the light intensity change as an alternative or in addition to the defined overlap of light cones. In particular, if a dynamic change is to take place, so that the change in the light intensity in a surface area itself should also take place, this can be advantageous.
- the light image is a static light image with the different
- Light intensities are displayed in the surface areas and the transition area. This means that in particular the entire size of the light image is displayed and areas have different light intensities. These will be maintained permanently.
- a traveling end region is created up to its final size, which forms the second surface region.
- the size of the photo is changed dynamically and at Changing the size will at least be a specific area in the
- the first light intensity is greater than the second light intensity.
- an end region of the light image can be displayed with a lower light intensity, as a result of which an optical brighter is produced and / or introduced to the other surface region
- the invention can generate various visual displays, in particular with regard to different operating conditions, with differently brighter and darker surface areas and homogeneously merging brightnesses and / or display individual operating conditions as a result of the different light intensities.
- the light elements arranged on the rear side of the display device radiate the light, in particular, non-directionally in the direction of that on the front side of the display
- Display device arranged luminous surface.
- the propagation direction of the light emitted by the respective luminous elements is limited by the partitions between the adjacently arranged luminous regions.
- the partitions in particular the shape and the shape of the partitions, limit a cone of light of the emitted light.
- the limited cone of light hits the illuminated area and illuminates a limited and thus defined area of the
- the overlapping of the adjacent light cone is achieved in that the partition walls present between the luminous regions arranged side by side do not extend completely, but only in sections, from the rear side to the luminous surface of the display device. As a result, the dividing wall ends of the respective
- the light of the adjacent light cone mixes and then illuminates the illuminated area.
- Appropriate Modifications include in particular changes in the shape, the shape and / or the geometric dimensions of the partitions.
- the light of the light emitted by the light elements can be different
- the display device according to the present disclosure Due to the configuration of the display device according to the present disclosure, it is possible to dispense with optical fibers. Thus, the cost of optical fibers can be saved and simplified by the use of optical fibers complex manufacturing and assembly of the display device can be simplified. In addition, fewer components are needed for the display device. In addition, the omission of optical fibers makes it possible to adapt the display device according to the present disclosure particularly advantageously to different geometries of the domestic appliance.
- a household appliance is a device that is used for household management. This can be a large household appliance, such as a
- Washing machine a tumble dryer, a dishwasher, a stove, a
- this can also be a small household appliance, such as a water heater, a coffee machine, a food processor or a
- the respective light cone has a conical tip which is arranged on the luminous element, and the respective light cone has a conical base surface which is arranged on the luminous surface, the conical base surfaces of respectively adjacent cones of light overlapping in the respective overlapping region, wherein in the respective overlap region, the conical base surfaces of respectively adjacent light cones overlap, in particular overlap by half.
- Luminous element wherein the light from the apex of the cone within the
- Beam of light propagates and at the cone base of the cone of light on the luminous surface meets.
- adjacent light cones and also the corresponding conical base surfaces of the corresponding light cones overlap, so that a uniform light distribution is ensured on the light surface.
- the conical base surfaces of respectively adjacent light cones overlap, in particular by half.
- the overlap especially by half, means that one on a first side adjacent to the central one
- first light cone arranged first light cone with the central cone of light overlaps such that the first cone of light facing half of the illuminated surface of the central cone of light is also illuminated by the first cone of light.
- the overlap by half means that a second side opposite the central cone of light located on one of the first side second cone of light overlaps with the central cone of light such that the second cone of light facing half of the illuminated area of the central cone of light also by the second cone of light is illuminated. In particular, then touch the first and second cone of light in the region of the central cone of light.
- the overlap in particular by half, not only ensures a particularly uniform light distribution on the luminous surface, but also reaches particularly sharply defined boundaries between the next but two light cones, if a central beam between an adjacent first and second beam should be turned off.
- the technical advantage is achieved that can be advantageously adjusted by changing the first Trennwandendabstandes between the respective partition wall end of the respective partition and the luminous surface, the shape, or the course of the light cone to an advantageous illumination of the luminous area
- the light cone bounded by the partitions has a Opening angle, which depends on the respective first
- Trennwandendabstandes is determined. For example, if the TVEdenendabstand between the partition wall end and the luminous surface increases, increases as a direct result, the opening angle of the corresponding bounded by the partition beam, so that the light cone can illuminate a correspondingly larger area of the luminous surface.
- Partition on a partition wall length wherein a limited by the partitions opening angle of the respective light cone is determined depending on the respective partition wall length.
- each adjacent partitions are spaced apart from one another by a lateral partition wall spacing, wherein an opening angle of the respective light cone limited by the partition walls is determined as a function of the respective lateral partition wall distance.
- the technical advantage is achieved that by changing the lateral partition distance between adjacent partitions, the shape, or the course, of the light cone can be advantageously adjusted to ensure advantageous illumination of the illuminated area.
- the limited by the partitions light cone has an opening angle, which depends on the respective lateral
- Partition distance is determined. If, for example, the lateral partition distance between the adjacent dividing walls is increased, the opening angle of the corresponding one by the adjacent ones increases as a direct result
- Dividing walls limited light cone, so that the light cone can illuminate a correspondingly larger area of the illuminated area.
- Luminous elements of the luminous surface arranged spaced by a light element spacing, wherein a limited by the partitions opening angle of the respective light cone is determined in dependence of the respective light element spacing.
- Luminaire element spacing between the respective luminous element and the luminous surface, the shape, or the course, of the light cone can be advantageously adjusted to ensure advantageous illumination of the luminous surface.
- the limited by the partitions respective light beam has an opening angle, which is determined as a function of the respective light element spacing. For example, the
- Luminous element distance between the respective luminous element and the luminous area is reduced, increases as a direct result, the opening angle of
- the light cone can illuminate a correspondingly larger area of the illuminated area.
- Luminous elements designed to emit light with a beam angle in the direction of the luminous surface, wherein the limited by the partitions opening angle of the light cone is less than the emission angle.
- the technical advantage is achieved that an effective limitation of the light cone is ensured by the partitions.
- the respective light-emitting elements are in particular designed to radiate light in an undirected manner from the rear side of the display device in the direction of the luminous area, so that the radiated light is radiated with a relatively large emission angle in the direction of the luminous area.
- the adjacent partitions arranged adjacent to one another delimit the propagation direction of the emitted light such that in each case a light cone is formed which strikes the luminous surface.
- the light cone has an opening angle which is less than the emission angle of the respective lighting element.
- the display device has a scattering element which is arranged on a surface of the luminous surface facing away from the outer region of the household appliance, wherein the
- Scattering element is designed to scatter on the scattering element incident light to ensure a diffuse illumination of the outer region of the household appliance by the luminous surface.
- the scattering element ensures that light incident on the scattering element is effectively scattered, so that the luminous area emits a diffused light. As a result, brightness peaks of the light on the luminous surface can be avoided.
- the scattering element has a scattering element inside facing the light source, and the respective lighting elements are from the scattering element inside by a
- Dividing walls limited opening angle of the respective light cone is determined depending on the respective scattering element inner side distance.
- the scattering element has a scattering element inside facing the light source, and is the respective one
- Trennwandendabstandes is determined.
- the scattering element and the luminous surface are integrally formed.
- Diffuser element and luminous surface is made possible in a single component.
- the luminous regions comprise a first luminous area group for illuminating a first surface area of the luminous area and a second luminous area group for illuminating a second surface area of the luminous area, wherein the luminous elements of the first
- Luminous region group are formed to emit light having a first light characteristic, wherein the luminous element of the second luminous area group formed are to emit light having a second light characteristic different from the first light property.
- the first and second surface area of the luminous area can be illuminated with different light, in particular differently colored light, so that the user of the household appliance can visually perceive a boundary between the first and second surface area on the luminous area.
- the luminous regions may be a plurality of
- Luminous area groups for illuminating a plurality of surface areas of the luminous area, wherein the luminous elements of the plurality of
- Luminous region groups are adapted to emit light having a variety of different light properties.
- the first and / or second light characteristic comprises the color of the emitted light, the polarization of the emitted light, the color temperature of the emitted light, and / or the
- the technical advantage is achieved that the user of the household appliance, the corresponding different light characteristics in the first and second
- the household appliance has a controller for controlling the display device, wherein the controller
- Disable lighting area group wherein the first border area adjacent to the second luminous area group, or wherein the controller is formed, a
- Luminous region group ensures an effective area separation between the first and second surface area of the luminous area.
- the border illumination area can in particular be part of the first illumination area group for illuminating the first
- border illumination area may, in particular, be part of the second illumination area group for illuminating the second area area of the illumination area with a second illumination area
- the border area does not have an overlap area in which adjacent beams may overlap. This is because the distance between the partitions is selected such that only respective adjacent light cones overlap each other, but light cones which are arranged further apart from each other do not overlap one another.
- an advantageously defined boundary between the light of the first luminous area group having the first luminous property and the light of the second luminous area group having the second luminous property can be obtained in the region of the border luminous area.
- the first area area and the second area area are effectively delimited from each other by the corresponding area separation on the luminous area.
- the display device is designed as a bar display, wherein the bar display is in particular designed to display a progress profile of the household appliance.
- the light-emitting elements are designed as light-emitting diodes, in particular as LEDs and / or OLEDs.
- the technical advantage is achieved that a bright and energy-saving illumination of the luminous surface can be ensured by the light-emitting diodes.
- Luminous elements in each case at least one multi-colored light source, and / or the luminous elements each comprise a plurality of monochrome light sources, wherein the monochrome light sources each emit light of different colors, and wherein the at least one multicolor light source and / or the plurality of monochrome light sources
- the technical advantage is achieved that radiated by the light emitting element differently colored light can be emitted both by a multi-colored light source, as can be radiated by various monochrome light sources, which emit light with different colors. If a multiplicity of monochromatic light sources, each with different colors, are used, an advantageous congruent position of the corresponding light cones can be ensured by arranging the light sources one above the other.
- the display device is designed as an injection-molded component.
- Another aspect of the invention relates to a method of operating a
- a light image is generated, in which a first surface area is generated on the luminous surface with a first light intensity greater than zero, and at least a second surface area is generated on the luminous surface, which is larger with a second light intensity different from the first light intensity Zero is generated.
- An optical transition region is created between the first surface region and the second surface region, in which the light intensity, in particular continuously, is changed from the first light intensity to the second light intensity, so that the light image is displayed with a homogeneous light intensity change between the first and the second light intensity becomes.
- the number of overlapping beams smaller than the number of overlapping beams in the first area is set larger than the number of overlapping beams in the second area.
- Luminous element is emitted, which forms the cone of light of the second surface area, differently adjusted as the brightness, with which light is emitted by at least one luminous element, which forms a cone of light of the first surface area.
- the transition area connects directly to the first and the second
- the light image is generated as a static light bar, which is generated at at least one end region with the second surface region.
- the size of the light image is dynamically increasing or decreasing, and in the optically dynamic structure of the light image to its final size, a traveling end region is created which forms the second surface area.
- the generated optical decay effect in the light image is produced in an improved manner by the above-mentioned advantageous individual number of overlapping light cones in the individual surface areas on the one hand and in the transition area on the other hand.
- Undesirable, noticeable optical intensity levels or intensity jumps can thereby be avoided in an improved manner. This makes it possible to improve the individual display of information with this very specifically formed photograph.
- this homogeneous appearance of changing light intensity in the light image can be taken into account by deliberately dimming at least one light-emitting element. This means that the light emitted by the light-emitting element is no longer transmitted at 100%, but with a percentage value reduced in relation to this percentage value. If, therefore, other light-emitting elements, for example those which generate the overlapping light cones in the first surface area and which have a higher brightness emission, in particular 100%, are improved by this percentage reduced light emission of the at least other light elements, the above-mentioned and the advantages of the light image achievable therewith. It can be provided in the context that the respective outer luminous elements, which thus produce the edge of the surface of the light image, which is represented in particular by the second surface area, are operated with a brightness emission of less than 100%.
- the percentage value with which light beams are emitted with respect to their brightness by a luminous element can be changed over time.
- very specific lighting elements are then dimmed upwards over time, for example, thus changing a surface area with respect to its light intensity.
- a luminous element which always represents just the areal edge area of the currently generated light image when successively increasing the size of the light image, may have a value of 0% of that Brightness of the emitted light rays can be increased up to, for example, 100%.
- the movement or the dynamic change in size of the light image is achieved fluently and thus also allows a dynamic optical resizing of this light image.
- This can be the case both in the case of a light bar which is rectilinear or curved, and in the case of a two-dimensional light image, as is the case, for example, with a circle or with a rectangle or with a quadrangle or another angularly shaped area.
- Luminous element is emitted from the light emitting element, takes place in a cascaded overlapping time.
- a defined threshold value of this percentage value is reached by one light-emitting element, but the percentage final value of the light emission is not reached, another light-emitting element following in the sequence is already activated and dimmed upwards ,
- Luminous elements in the order of the lighting elements are also performed. Additionally or instead, it may be provided that the lumping is also formed with individual lengths of the partitions. In the context, different partition walls having different lengths (dimensioned between a rear side of the display device and a scattering element inner side) may be used
- this length is discreet or continuously variable in length.
- this may be formed by a non-rigid separating element.
- a related partition may be formed for example as a telescopic wall or as a folding wall.
- a partial area can be formed in white color or other light color, so that a stronger reflection is achieved. For darker colors, especially black, the reflection is reduced. Also, at least portions of the partitions or the back of the display device may be reduced in surface roughness, in particular be very smooth. This also makes it possible to achieve a mirror effect or a higher reflection. This also makes it possible to design individual surface areas or zones of the light image to be generated with respect to the respective intensity and / or with respect to a homogeneous change in intensity.
- a dynamically changing light image such as a light bar
- the scattering element or a relevant diffuser element can be individually printed or coated with respect to the scattering effect or the diffuser effect.
- the thickness of this control can be customized to make the transmitted light more homogeneous in blurring and transition.
- a Diffuser be a relatively thick plate member or be formed as a film or be designed as printing on a glass or plastic.
- Number of light elements and / or their arrangement vary from one another to be able to design individual photographs.
- 1a is a schematic view of a laundry care device as an embodiment of a household appliance
- Fig. 1 b is a schematic view of a baking oven as an embodiment of a
- Fig. 1c is a schematic representation of a hob as an embodiment of a household appliance
- Fig. 2 is a display device of a household appliance according to a first
- Fig. 3 is a display device of a household appliance according to a second
- Fig. 4a shows a display device of a household appliance according to the second
- Fig. 4b is a display device of a household appliance according to the second
- FIG. 5 shows several examples of different shapes of a photograph produced by the display device
- Fig. 6 is a diagram in which a first example of a timing of the
- Brightness change of different light elements of the display device is shown.
- Fig. 7 is a diagram in which a second example of a timing of the
- Brightness change of different light elements of the display device is shown.
- Fig. 1a shows a schematic view of a general laundry care device 100-1 as an exemplary home appliance 100, such as e.g. a washing machine.
- Laundry-care appliance 100-1 comprises a storage container 101, which is also referred to as an induction bowl, and into which detergent or other laundry-care substances can be introduced.
- the laundry care device 100-1 comprises a device door 103 for loading the laundry care device 100-1 with laundry.
- the door 103 closes a
- the laundry care device 100-1 has a device wall 107, which delimits an inner region 109 of the laundry care device 100-1, which is shown only schematically in FIG. 1a, from an outer region 11 1 of the laundry care device 100-1.
- an operating element 15 is arranged for operating the laundry care device 100-1, and a display device 17 is arranged for displaying an operating value of the laundry care device 100-1.
- the display device 117 is designed in particular as a bar display, which is designed, in particular, to display a progress profile of the laundry care device 100-1.
- a luminous surface 121 facing the outer region 11 1 of the laundry care device 100-1 is arranged.
- Fig. 1 b is a cooking appliance, in particular a baking oven 100-2 shown as a household appliance 100.
- Fig. 1 c is a cooking appliance, in particular a hob 100-3 shown as a household appliance 100.
- FIGS. 1 a to 1 c a control or a control unit 163 is also shown, with which the display device 117 is also controllable.
- FIG. 2 shows a display device of a domestic appliance 100 according to a first embodiment in a schematic sectional representation.
- Fig. 2 is the
- Display device 1 17 shown schematically in the direction of the top of the illustrated in Fig. 1 domestic appliance 100.
- Display front 119 of the display device 1 17 a luminous surface 121 is arranged.
- luminous elements 125-1, 125-2, 125-3 are arranged, which are designed to emit light 127 in the direction of the luminous area 121.
- the light-emitting elements 125-1, 125-2, 125-3 comprise, in particular, light-emitting diodes, such as e.g. LEDs and / or OLEDs.
- the number of light elements 125-1, 125-2, 125-3 is to be understood only as an example and it may also be more than three light elements.
- the display device 117 has a plurality of luminous regions 129 arranged next to one another, in particular a first luminous region 129-1, a second luminous region 129-2 and a third luminous region 129-3. Two adjacently arranged luminous areas 129, 129-1, 129-2, 129-3 are each delimited from each other by a partition wall 131, wherein the partitions 131
- the partitions 131 do not extend completely from the back 123 to the front of the display 119 of the display device 1 17. Rather, the respective dividing wall ends 133 are spaced from the luminous surface 121. Between the respective dividing wall ends 133 and the luminous area 121, an overlapping area 135 is arranged in each case.
- the partition walls 131 restrict the propagation direction of the through
- Illuminated elements 125-1, 125-2, 125-3 radiated light 127 The arranged in the respective luminous area 129, 129-1, 129-2, 129-3 respective luminous element 125-1, 125- 2, 125-3 thus radiates Light 127 in a cone of light 136 whose shape is determined by the course of the partitions 131.
- the respective light cone 136 has a
- Cone tip 137 which is arranged on the respective lighting element 125.
- the respective light cone 136 has a cone base surface 139.
- the distance between the dividing wall end 133 of the respective dividing wall 131 and the luminous surface 121 results in overlapping of adjacent light cones 136 in the respective overlap region 135 in order to ensure uniform illumination of the luminous surface 121.
- an optional scattering element 143 is arranged, which is designed to scatter on the scattering element 143 incident light 127 in order to ensure a diffuse illumination of the outer region 1 11 of the household appliance 100 through the luminous surface 121.
- the scattering element 143 and the luminous surface 121 are manufactured in particular as a one-piece component.
- the scattering element 143 has a scattering element inner side 144 facing the luminous elements 125-1, 125-2, 125-3.
- the respective conical base surfaces 139 of the respective light cones 136 are arranged on the scattering element inner side 144. If, in an optional embodiment, the optional scattering element 143 should be dispensed with, the respective cone base surfaces 139 are arranged on the surface inside 141 of the luminous surface 143.
- the uniform illumination of the scattering element 143, or the luminous surface 121st be ensured without, for example, optical fiber elements in the display device 1 17 must be installed. Due to the uniform illumination of the luminous surface 121, for example, bright spots of light on the luminous surface 121 can be prevented. As a result, the production costs and the associated manufacturing costs can be reduced because optical fibers are no longer needed, and can be dispensed with a corresponding production in the injection molding process. In addition, appropriate
- Display devices 1 17 are adapted to different geometries of the household appliance 100 more advantageous.
- the shape of the limited by the partitions 131 respective light cone 136 is variable by various adjustments.
- Trennwandendabstandes 147-1 between a partition end 133 of the partition wall 131 and the luminous surface 121 are determined, if according to an optional
- Embodiment no scattering element 143 should be used.
- a scattering element 143 is used, for example, an opening angle 145 of the respective light cone 136 bounded by the partitions 131 becomes dependent on a respective second one
- Trennwandendabstandes 147-2 between a partition end 133 of the partition wall 131 and the scattering element inner side 144 of the scattering element 143 are determined.
- a limited by the partitions 131 opening angle 145 of the respective light cone 136 is of course also in dependence of the partition wall length 148 extending from the back 123 extending in the direction of the luminous surface 1 19 dividing walls 131 determined.
- Dividing wall length 148 reduces, for example, the opening angle 145 of the respective light cone 136 and the corresponding cone base 139 of the respective light cone 136 is reduced. Furthermore, the opening angle 145 of the respective light cone 136 limited by the partitions 131 can be determined as a function of a lateral partition distance 149 between adjacent partitions 131. If the lateral partition wall distance 149 is increased, for example, then the opening angle 145 of the respective light cone 136 increases and the corresponding cone base area 139 of the respective light cone 136 becomes larger.
- the opening angle 145 of the respective light cone 136 limited by the partition walls 131 can be determined as a function of a luminous element spacing 151 between the respective luminous element 125 and the luminous area 121 if no scattering element 123 is used. If a scattering element 123 is used, the opening angle 145 of the respective light cone 136 limited by the dividing walls 131 can be determined as a function of a scattering element inner spacing 152 between the respective luminous element 125 and the scattering element inner side 144 of the scattering element 143
- the luminous element distance 151 or the scattering element inner side distance 152 increases and the opening angle 145 of the respective light cone 136 and the corresponding cone base surface 139 decreases.
- the opening angle 145 of the respective light cone 136 limited by the partitions 131 is in particular smaller than the emission angle 153 of the respective luminous element 125-1, 125-2, 125-3, an effective delimitation of the light cone 136 by the partitions 131 is ensured.
- the shape of the respective light cone 136 in particular the opening angle 145 of the respective light cone 136 and / or the cone base surface 139 of the respective light cone 136, by a change in the light element spacing 151, or the scattering element inner side distance 152, by a change in the lateral
- Partition distance 149 by a change of the respective first, or second Trennwandendabstands 147-1, 147-2, and / or varied by a change in the respective partition wall length 148, thereby advantageously adjust the respective overlap regions 135 between the respective adjacent light cones 136.
- the partitions 131 preferably have the same partition wall length 148.
- a static light image 155 to have a first surface region 156, which here is formed by the conical base surface 139, having a first light intensity. The first light intensity is given by the overlapping light cone 136.
- Luminous elements 125-1 and / or 125-3 emit the respective light 127 with a brightness that is less than 100%. This means that the light emission of these outer light emitting elements 125-1 and 125-3 is dimmed as compared to the other light emitting element 125-2.
- light 127 is emitted by the luminous element 125-2 having a greater percentage brightness value, in particular 100%.
- a light image 155 can be generated which has a different light intensity at different defined zones and thus at defined surface areas and by the individual and defined percentage values with which the light 127 of the individual light elements 125-1, 125-2 and 125-. 3 is emitted, a more homogeneous light intensity change at the transition between the
- Area areas 156 and 157 allows.
- a display device 1 17 is shown in a further embodiment.
- lighting elements 125-1, 125-2, 125-3, 125-4, 125-5, 125-6 and 125-7 are exemplified. Again, the number of these light elements is not conclusive.
- These lighting elements 125-1 to 125-7 are arranged in particular in a row to one another, as is provided in particular in the embodiment in Fig. 2. Regardless of such an arrangement to each other, other positioning can be provided, for example in one
- Matrix arrangement with rows and columns so that in contrast to the embodiments of FIG. 2 and FIG. 3, not a single row is provided with corresponding lighting elements, but a plurality of such rows are provided.
- a light line or a light bar are generated as a light image, but also other shapes, such as larger areas, such as a circular area or an angular area, such as a rectangle or a square.
- a light image 155 is generated.
- a first surface area 156 is provided here in which at least three light cones 136 overlap.
- the light 127 is emitted by the respective luminous elements 125-2, 125-3 and 125-4 at a specific percentage, in particular 100%.
- the light image 155 also has a first area 156
- a transition region 158 is formed between the first surface region 156 and the second surface region 157.
- two light cones 136 are overlapping in the exemplary embodiment. This means that the number of overlapping light cones 136 in this transition region 158 is smaller than in the first surface region 156, but larger than in the second surface region 157.
- all the light elements 125-1 to 125-5 can be operated to this effect in that the light 127 is emitted in each case with an equal brightness value, in particular 100%.
- the other light cones 136 are overlapping in the exemplary embodiment.
- the light image 125 can be displayed as a static light image. However, it can also be displayed as a dynamic image and displayed dynamically increasing in size. This can be done so that the activation of the light-emitting elements 125-1 to 125-7 takes place successively in time and / or the percentage value of the brightness with which light 127 is emitted by at least some of these light-emitting elements 125-1 to 125-7 is changed, in particular is increased. For example, this can be done at a
- an end region 159 is shown.
- two light cones 136 are overlapping in the exemplary embodiment so that the light intensity in this end region 159 is smaller than in the first surface region 156.
- the light intensity in this end region 159 is equal to the light intensity in the transition region 158 Case when the percentage brightness value with which light 127 is emitted by the end-side light-emitting elements 125-1 and 125-5, is the same and / or the percentage brightness values with which light 127 through the adjacent
- Luminous elements 125-2 and 125-4 is emitted, is the same.
- this result of the light intensity is achieved when the sum of the brightnesses with which light 127 is produced by the light elements 125-1 and 125-2 is equal to the sum of the brightnesses with which light 127 passes through the light elements 125-4 and 125-5 is emitted.
- the individual light intensity can also be at the
- Lighting element 125-3 can be adjusted individually.
- the respective zonal definition of the individual number of overlapping light cones 136 and / or by the respective individual percentage adjustment of the brightness value of the emitted light 127 can produce a very individual light image 155 are generated with a variety of light intensity zones, so that in total a light image 155 is given with varying light intensities.
- light intensities can always be generated very homogeneously, so that sharp edges of light and abrupt light intensity thresholds can be avoided.
- a luminous element which in each case forms the end-side luminous element in the dynamic structure of the light image 155 and is subsequently activated for further dynamic size generation of the light image 155, to be dimmed for a certain period of time during activation , An abrupt turn on and immediate adjustment of the desired brightness end value at which the light 127 is emitted from this light-emitting element is then not provided.
- This dimming of a luminous element can also take place for a plurality of successive luminous elements in the defined time offset to each other.
- FIG. 4 a shows an example of a light image 155, which is shown here as a light bar.
- the respective sections for the above-mentioned examples of FIG. 3 are shown here.
- the first surface area 156 here has an exemplary first light intensity 160.
- the second surface area 157 is shown with a second light intensity 161 reduced thereto.
- the transition region 158 is shown with a light intensity 162 that is between the light intensity 160 and the light intensity 161.
- a light image 155 is shown, which is not or not yet the full size, as it can be formed maximum generated. This may be the case, for example, that the light image 155 is sufficient in the size shown and is then displayed statically in this embodiment.
- FIG. 4b shows a further example of a light image 155 of the display device 117 which is designed as a light bar.
- a light image 155 may be a closed circle.
- a light image 155 may also have a curved line or a curved one Be light bar, as shown by the two right illustrations in Fig. 5 by way of example.
- FIG. 6 shows in a simplified representation a diagram in which a percentage brightness value as a function of time for different
- Luminous elements 125-1 to 125-6 is shown. In this embodiment, it is provided that upon activation of a luminous element 125-1 to 125-6, the percentage brightness value is increased over a predetermined time interval from 0% to 100%. As can be seen in the example in FIG. 6, a luminous element following in the sequence is activated only when the preceding luminous element has reached the brightness value of 100%.
- FIG. 7 in which a corresponding diagram is shown as in FIG. 6, it is provided, in contrast to the illustration in FIG. 6, that when, for example, a luminous element reaches a brightness threshold when the brightness value is changed, it becomes smaller 100%, already the next light element is activated.
- a luminous element reaches a brightness threshold when the brightness value is changed, it becomes smaller 100%, already the next light element is activated.
- the activation of the following luminous element 125-2 already takes place.
- the respectively following luminous element 125-3, 125-4, 125-5 and 125-6 is activated in each case at a time when the preceding luminous element has a brightness threshold value, in particular, for example, a brightness value of 50%, has reached.
- this brightness threshold to which a subsequent light-emitting element is then activated, can also be different than 50%.
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- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
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Abstract
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
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DE102018203598.9A DE102018203598A1 (de) | 2018-03-09 | 2018-03-09 | Haushaltsgerät mit einer Anzeigeeinrichtung |
PCT/EP2018/086284 WO2019170273A1 (de) | 2018-03-09 | 2018-12-20 | Haushaltsgerät mit einer anzeigeeinrichtung mit intensitätsvariablen lichtbild, sowie verfahren |
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EP3762653A1 true EP3762653A1 (de) | 2021-01-13 |
EP3762653B1 EP3762653B1 (de) | 2022-11-09 |
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EP (1) | EP3762653B1 (de) |
CN (1) | CN110246434B (de) |
DE (1) | DE102018203598A1 (de) |
WO (1) | WO2019170273A1 (de) |
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EP3805646B1 (de) * | 2019-10-07 | 2023-09-06 | BSH Hausgeräte GmbH | Kochfeldvorrichtung |
JP2022046175A (ja) * | 2020-09-10 | 2022-03-23 | ダイキン工業株式会社 | 表示装置及び空気調和機 |
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JPH03111886A (ja) * | 1989-09-27 | 1991-05-13 | Omron Corp | Ledバックライト構造 |
US20090097230A1 (en) * | 2006-02-03 | 2009-04-16 | Sharp Kabushiki Kaisha | Illumination device and liquid crystal display device |
EP2161494B2 (de) * | 2008-09-05 | 2020-04-29 | HELLA GmbH & Co. KGaA | Beleuchtungseinrichtung für ein Kraftfahrzeug |
US8434887B2 (en) * | 2009-08-27 | 2013-05-07 | Dolby Laboratories Licensing Corporation | Optical mixing and shaping system for display backlights and displays incorporating the same |
US8740403B2 (en) * | 2010-02-22 | 2014-06-03 | Lumenpulse Lighting, Inc. | Linear light emitting diode (LED) lighting fixture |
DE102010031192B4 (de) * | 2010-07-09 | 2022-01-20 | Preh Gmbh | Lentikular-Leuchtvorrichtung und Bedienelement |
CN102081284A (zh) * | 2010-12-08 | 2011-06-01 | 苏州创捷传媒展览有限公司 | 一种用于多个投影图像拼接的边缘融合方法 |
JP2012124409A (ja) * | 2010-12-10 | 2012-06-28 | Elite Trading Co Ltd | Led光源の反射及び放熱構造 |
DE102011087479A1 (de) * | 2011-11-30 | 2013-06-06 | BSH Bosch und Siemens Hausgeräte GmbH | Verfahren zum Betreiben eines Kochfelds sowie Kochfeld |
DE102013226633A1 (de) * | 2013-12-19 | 2015-06-25 | BSH Hausgeräte GmbH | Anzeige-Bedienfeld mit moduliertem Licht |
JP6470030B2 (ja) * | 2014-12-16 | 2019-02-13 | 株式会社エンプラス | 反射部材、照明装置、面光源装置、表示装置及び電子機器 |
DE102015208195B4 (de) | 2015-05-04 | 2023-12-14 | BSH Hausgeräte GmbH | Kochfeld mit mindestens einer Halbleiterlichtquelle und einem Lichtstreukörper |
CN108604429B (zh) * | 2016-01-22 | 2020-10-09 | 夏普株式会社 | 照明装置及电子设备 |
DE102017208003A1 (de) * | 2017-05-11 | 2018-11-15 | BSH Hausgeräte GmbH | Beleuchtungsvorrichtung für Haushaltsgerät und Haushaltsgerät |
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2018
- 2018-03-09 DE DE102018203598.9A patent/DE102018203598A1/de active Pending
- 2018-12-20 EP EP18826678.7A patent/EP3762653B1/de active Active
- 2018-12-20 WO PCT/EP2018/086284 patent/WO2019170273A1/de active Application Filing
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- 2019-03-08 CN CN201910175855.0A patent/CN110246434B/zh active Active
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DE102018203598A1 (de) | 2019-09-12 |
EP3762653B1 (de) | 2022-11-09 |
CN110246434B (zh) | 2022-07-29 |
CN110246434A (zh) | 2019-09-17 |
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