EP4496725A1 - Anzeigevorrichtung für ein fahrzeug - Google Patents
Anzeigevorrichtung für ein fahrzeugInfo
- Publication number
- EP4496725A1 EP4496725A1 EP23706545.3A EP23706545A EP4496725A1 EP 4496725 A1 EP4496725 A1 EP 4496725A1 EP 23706545 A EP23706545 A EP 23706545A EP 4496725 A1 EP4496725 A1 EP 4496725A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- light
- display device
- hologram
- area
- holograms
- 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.)
- Pending
Links
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
- B60K35/00—Instruments specially adapted for vehicles; Arrangement of instruments in or on vehicles
- B60K35/20—Output arrangements, i.e. from vehicle to user, associated with vehicle functions or specially adapted therefor
- B60K35/21—Output arrangements, i.e. from vehicle to user, associated with vehicle functions or specially adapted therefor using visual output, e.g. blinking lights or matrix displays
- B60K35/211—Output arrangements, i.e. from vehicle to user, associated with vehicle functions or specially adapted therefor using visual output, e.g. blinking lights or matrix displays producing three-dimensional [3D] effects, e.g. stereoscopic images
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B5/00—Optical elements other than lenses
- G02B5/32—Holograms used as optical elements
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
- B60K35/00—Instruments specially adapted for vehicles; Arrangement of instruments in or on vehicles
- B60K35/20—Output arrangements, i.e. from vehicle to user, associated with vehicle functions or specially adapted therefor
- B60K35/21—Output arrangements, i.e. from vehicle to user, associated with vehicle functions or specially adapted therefor using visual output, e.g. blinking lights or matrix displays
- B60K35/22—Display screens
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
- B60K35/00—Instruments specially adapted for vehicles; Arrangement of instruments in or on vehicles
- B60K35/50—Instruments characterised by their means of attachment to or integration in the vehicle
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
- B60K35/00—Instruments specially adapted for vehicles; Arrangement of instruments in or on vehicles
- B60K35/60—Instruments characterised by their location or relative disposition in or on vehicles
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
- B60K35/00—Instruments specially adapted for vehicles; Arrangement of instruments in or on vehicles
- B60K35/80—Arrangements for controlling instruments
- B60K35/81—Arrangements for controlling instruments for controlling displays
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B30/00—Optical systems or apparatus for producing three-dimensional [3D] effects, e.g. stereoscopic images
- G02B30/50—Optical systems or apparatus for producing three-dimensional [3D] effects, e.g. stereoscopic images the image being built up from image elements distributed over a three-dimensional [3D] volume, e.g. voxels
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/0001—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems
- G02B6/0011—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems the light guides being planar or of plate-like form
- G02B6/0013—Means for improving the coupling-in of light from the light source into the light guide
- G02B6/0015—Means for improving the coupling-in of light from the light source into the light guide provided on the surface of the light guide or in the bulk of it
- G02B6/0018—Redirecting means on the surface of the light guide
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/0001—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems
- G02B6/0011—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems the light guides being planar or of plate-like form
- G02B6/0013—Means for improving the coupling-in of light from the light source into the light guide
- G02B6/0015—Means for improving the coupling-in of light from the light source into the light guide provided on the surface of the light guide or in the bulk of it
- G02B6/002—Means for improving the coupling-in of light from the light source into the light guide provided on the surface of the light guide or in the bulk of it by shaping at least a portion of the light guide, e.g. with collimating, focussing or diverging surfaces
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/0001—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems
- G02B6/0011—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems the light guides being planar or of plate-like form
- G02B6/0033—Means for improving the coupling-out of light from the light guide
- G02B6/0035—Means for improving the coupling-out of light from the light guide provided on the surface of the light guide or in the bulk of it
- G02B6/0045—Means for improving the coupling-out of light from the light guide provided on the surface of the light guide or in the bulk of it by shaping at least a portion of the light guide
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/0001—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems
- G02B6/0011—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems the light guides being planar or of plate-like form
- G02B6/0075—Arrangements of multiple light guides
- G02B6/0078—Side-by-side arrangements, e.g. for large area displays
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- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03H—HOLOGRAPHIC PROCESSES OR APPARATUS
- G03H1/00—Holographic processes or apparatus using light, infrared or ultraviolet waves for obtaining holograms or for obtaining an image from them; Details peculiar thereto
- G03H1/22—Processes or apparatus for obtaining an optical image from holograms
- G03H1/2202—Reconstruction geometries or arrangements
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
- B60K2360/00—Indexing scheme associated with groups B60K35/00 or B60K37/00 relating to details of instruments or dashboards
- B60K2360/16—Type of output information
- B60K2360/178—Warnings
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
- B60K2360/00—Indexing scheme associated with groups B60K35/00 or B60K37/00 relating to details of instruments or dashboards
- B60K2360/20—Optical features of instruments
- B60K2360/23—Optical features of instruments using reflectors
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
- B60K2360/00—Indexing scheme associated with groups B60K35/00 or B60K37/00 relating to details of instruments or dashboards
- B60K2360/20—Optical features of instruments
- B60K2360/29—Holographic features
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
- B60K2360/00—Indexing scheme associated with groups B60K35/00 or B60K37/00 relating to details of instruments or dashboards
- B60K2360/20—Optical features of instruments
- B60K2360/31—Virtual images
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
- B60K2360/00—Indexing scheme associated with groups B60K35/00 or B60K37/00 relating to details of instruments or dashboards
- B60K2360/20—Optical features of instruments
- B60K2360/33—Illumination features
- B60K2360/332—Light emitting diodes
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
- B60K2360/00—Indexing scheme associated with groups B60K35/00 or B60K37/00 relating to details of instruments or dashboards
- B60K2360/20—Optical features of instruments
- B60K2360/33—Illumination features
- B60K2360/336—Light guides
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
- B60K2360/00—Indexing scheme associated with groups B60K35/00 or B60K37/00 relating to details of instruments or dashboards
- B60K2360/60—Structural details of dashboards or instruments
- B60K2360/68—Features of instruments
- B60K2360/691—Housings
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
- B60K2360/00—Indexing scheme associated with groups B60K35/00 or B60K37/00 relating to details of instruments or dashboards
- B60K2360/92—Manufacturing of instruments
- B60K2360/96—Manufacturing of instruments by assembling
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
- B60K35/00—Instruments specially adapted for vehicles; Arrangement of instruments in or on vehicles
- B60K35/90—Calibration of instruments, e.g. setting initial or reference parameters; Testing of instruments, e.g. detecting malfunction
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- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03H—HOLOGRAPHIC PROCESSES OR APPARATUS
- G03H1/00—Holographic processes or apparatus using light, infrared or ultraviolet waves for obtaining holograms or for obtaining an image from them; Details peculiar thereto
- G03H1/22—Processes or apparatus for obtaining an optical image from holograms
- G03H1/2202—Reconstruction geometries or arrangements
- G03H2001/2223—Particular relationship between light source, hologram and observer
- G03H2001/2226—Edge lit holograms
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- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03H—HOLOGRAPHIC PROCESSES OR APPARATUS
- G03H1/00—Holographic processes or apparatus using light, infrared or ultraviolet waves for obtaining holograms or for obtaining an image from them; Details peculiar thereto
- G03H1/22—Processes or apparatus for obtaining an optical image from holograms
- G03H1/2202—Reconstruction geometries or arrangements
- G03H2001/2236—Details of the viewing window
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- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03H—HOLOGRAPHIC PROCESSES OR APPARATUS
- G03H1/00—Holographic processes or apparatus using light, infrared or ultraviolet waves for obtaining holograms or for obtaining an image from them; Details peculiar thereto
- G03H1/22—Processes or apparatus for obtaining an optical image from holograms
- G03H1/2249—Holobject properties
- G03H2001/2273—Pseudo-dynamic holobject, e.g. due to angle multiplexing and viewer motion
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- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03H—HOLOGRAPHIC PROCESSES OR APPARATUS
- G03H1/00—Holographic processes or apparatus using light, infrared or ultraviolet waves for obtaining holograms or for obtaining an image from them; Details peculiar thereto
- G03H1/26—Processes or apparatus specially adapted to produce multiple sub- holograms or to obtain images from them, e.g. multicolour technique
- G03H2001/2605—Arrangement of the sub-holograms, e.g. partial overlapping
- G03H2001/261—Arrangement of the sub-holograms, e.g. partial overlapping in optical contact
- G03H2001/2615—Arrangement of the sub-holograms, e.g. partial overlapping in optical contact in physical contact, i.e. layered holograms
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- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03H—HOLOGRAPHIC PROCESSES OR APPARATUS
- G03H1/00—Holographic processes or apparatus using light, infrared or ultraviolet waves for obtaining holograms or for obtaining an image from them; Details peculiar thereto
- G03H1/26—Processes or apparatus specially adapted to produce multiple sub- holograms or to obtain images from them, e.g. multicolour technique
- G03H1/2645—Multiplexing processes, e.g. aperture, shift, or wavefront multiplexing
- G03H2001/266—Wavelength multiplexing
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- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03H—HOLOGRAPHIC PROCESSES OR APPARATUS
- G03H2222/00—Light sources or light beam properties
- G03H2222/34—Multiple light sources
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- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03H—HOLOGRAPHIC PROCESSES OR APPARATUS
- G03H2223/00—Optical components
- G03H2223/16—Optical waveguide, e.g. optical fibre, rod
Definitions
- the present invention relates to a display device for a vehicle which is designed to be integrated into the interior of the vehicle.
- warning lights in the interior of a vehicle, for example for the function of the lane change assistant or the blind spot warning function. If an overtaking vehicle is detected in the rear blind spot, which is not visible to the driver via the side mirror, a small warning light lights up in or on the exterior mirror or inside the mirror base or the front corner of the side window. A comparable function is then used, for example, when changing lanes yourself, possibly even unintentionally, as a lane change assistant or lane assistant.
- Holographic lighting systems can highlight and design such a warning function more clearly and create scenarios with an impressive depth and 3D appearance, with the advantage of providing greater attention and therefore increased safety than today's small illuminated areas, which can easily be overlooked .
- holographic display functions provide a basis for the trend of individualization and personalization by allowing the hologram to be individually designed with different, customized graphics and representations. This makes it very easy to provide different appearances that cannot be achieved without holograms, for example cultural, country-specific graphics and pictograms, while maintaining the optical components To be able to easily use fonts in different ways and thus to adapt the execution of the display function individually to global requirements.
- the installation of display devices in paneling elements of the vehicle interior is characterized by tight installation spaces and low overall depth because other built-in parts, such as cable harnesses, absorption components, loudspeakers, supply lines to airbags or the airbags themselves, are often installed in the panels.
- Another reason for narrow installation spaces and a low overall depth can be a correspondingly strong body structure or support structure, which is designed with several sheets or components in order to ensure the rigidity of the passenger cell and to ensure occupant protection in the event of a crash.
- a display device of the type mentioned is known from DE 10 2019 206 025 A1.
- the display device described therein is used to display image information in the interior of a vehicle.
- the display device comprises a light source designed as a light-emitting diode (LED) and a flat light guide, into the end face of which the light from the light source is coupled.
- the coupled light is totally reflected several times between the front and rear interfaces of the light guide and is thus guided through the entire light guide surface.
- Several holograms which are designed as reflection holograms, are arranged approximately in the middle between the front and rear interfaces in the light guide. The interaction of the light with the holograms creates several holographic images that can be perceived by a user inside the vehicle.
- the multiple light reflections at the front and rear interfaces are visible as images of alternating light and dark stripes in the reconstructed hologram. Furthermore, in such systems, the angle at which the light is reflected at the front and rear interfaces must correspond to the illumination angle of the hologram, which requires relatively great effort.
- the problem underlying the present invention is the creation of a display device of the type mentioned at the outset, which is simple in construction and/or requires little installation space.
- the display device comprises a plurality of light sources, a plurality of light guides, each of which has an entrance surface and a reflecting area, the light guides being arranged next to one another, and a plurality of holograms, with on or in each of the Light guide at least one of the holograms is arranged, wherein at least one of the light sources is assigned to one of the light guides and the display device is set up so that light emanating from the light sources enters the entrance surface of the associated light guide in the direction of the reflective area, from the reflective Area inside the light guide is reflected towards the hologram and interacts with the hologram.
- the display device can be made very compact.
- the light is reflected directly from the reflecting area in the direction of the hologram, so that multiple reflections and the associated light and dark stripes in the reconstructed hologram are avoided.
- the direction in which the light guides are arranged next to one another is a horizontal direction or a vertical direction when the display device is installed in the vehicle.
- the light guides can therefore in particular also be arranged one above the other.
- the average distance between each of the light sources and the reflective area of the associated light guide is at least half as large as the average distance from the reflective area to the hologram, in particular where the average distance between the light source and the entrance surface together with the average distance between the entrance surface and the reflective area between 0.8 and 1.2 times as large as the average distance between the reflective area and the hologram.
- the average distance between the entrance surface and the reflective area can be at least half as large as the average distance from the reflective area to the hologram and/or the average distance between the light source and the entrance surface of the associated light guide can be at least half as large as the average Be the distance between the reflective area and the hologram.
- the large distance between the light source and the reflecting area results in a long distance over which the light emanating from the light source can expand in a transverse direction. This enables a large width extension and a space-saving, compact design of the light guides, so that the display device can also be easily integrated into small installation spaces.
- the display device can be designed so compactly that it can be installed in different positions in the vehicle interior, for example integrated in the A-pillar, B-pillar or C-pillar or in the dashboard or in the center console or in the roof console or in the Doors or anywhere else in the vehicle interior is suitable.
- each of the light guides is assigned two light sources and that each of the light guides has two entrance surfaces and two reflective areas, the display device being set up so that light emanating from the first of the two light sources enters the first of the two entrance surfaces of the light guide enters in the direction of the first of the reflective areas, is reflected by the first reflective area inside the light guide in the direction of the hologram and interacts with the hologram, and that light emanating from the second of the two light sources enters the second of the two entrance surfaces of the Light guide enters in the direction of the second of the reflective areas, is reflected by the second reflective area inside the light guide in the direction of the hologram and interacts with the hologram.
- the display device or the light guide enables the hologram to be illuminated from two directions, for example by providing opposite light sources which introduce light in a crossing manner into the entrance surface opposite the light source.
- two holograms are arranged on each of the light guides, in particular with the display device being set up so that a first of the two holograms interacts with the light emitted by the first light source and that the second of the two holograms interacts with that from the second Light source outgoing light interacts. This means that two different holographic images can be generated from one light guide.
- the light emanating from the first light source has a different wavelength distribution, in particular a different color, than the light emanating from the second light source.
- the light guide can be used for two different light colors, for example red and yellow or red and blue or red and green, in order to depict two functions or different warnings and notices using a hologram for each of the light colors.
- each of the light guides prefferably be U-shaped with two legs and a connection area between the two legs. This creates a component that is compact and easy to install in the interior of a vehicle.
- the first entry surface and in particular also the first reflective area, can be arranged on the first of the two legs, the second entry surface, and in particular also the second reflective area, on the second of the two legs, and the hologram or holograms can be arranged on or in the connecting area be. This allows a very compact design of the display device to be realized.
- the first light source is arranged on the second leg or in the area of the second leg and the second light source is arranged on the first leg or in the area of the first leg, the display device in particular having a holder for the light sources or a holder for each one includes each of the light sources.
- the display device is set up to control the plurality of light sources in such a way that the individual holographic images generated by the interaction of the light with the holograms arranged on or in the individual light guides are generated at a time offset from one another, in particular by a dynamic one or to create an animated composite image.
- the multiple light sources can be controlled sequentially, whereby a dynamic or animation is introduced into the holographic display, which increases attention and further increases security.
- a warning for the driver can be provided in a gradation of danger.
- the display device prefferably comprises a holding device on or in which the plurality of light sources and the plurality of light guides with the plurality of holograms are held.
- a common holding device makes it easier to adjust the individual parts to one another.
- the holding device comprises at least one light shading element in order to at least partially prevent unwanted light from entering the plurality of light guides, with the at least one light shading element preferably in a connection area between individual light guides is arranged and / or starts from a connection area between individual light guides. This makes it possible, in particular, to reduce the occurrence of double images or blurring in adjacent holographic images.
- the display device comprises a housing and/or at least one cover plate and/or at least one design panel. It can be a common cover plate for all of the light guides. Furthermore, a design panel can be provided which surrounds the light exit surfaces of the light guides.
- the display device is set up to be integrated into an A-pillar or into a B-pillar or into a C-pillar or into a dashboard or into a center console or into a roof console or into a door of the interior of the vehicle to become
- FIG. 1 is a perspective view of part of a display device according to the invention, of which only a light guide and the associated light sources are shown;
- FIG. 2 shows a further perspective view of the part of the display device according to FIG. 1;
- FIG. 3 shows a sectional view of the part of the display device according to FIG. 1 with an exemplary beam path of the light emanating from one of the light sources;
- FIG. 4 is a perspective view of the display device, of which several light guides and the associated light sources are shown;
- FIG. 5 shows a further perspective view of the display device according to FIG. 4;
- 6 is a front view of the display device according to FIG. 4 with a housing;
- FIG. 7 shows a perspective view of the display device according to FIG. 4 with the housing without a cover plate
- FIG. 8 is a perspective view of the display device according to FIG. 4 with the housing without a cover plate and without a design panel;
- FIG. 9 is a perspective view of the display device according to FIG. 4 with a holding device without a housing;
- FIG. 10 shows a further perspective view of the display device according to FIG. 4 with the holding device without a housing;
- FIG. 11 shows a detail of a perspective view of the display device according to FIG. 4 with the holding device without a housing, with an exemplary beam path of the light emanating from one of the light sources being shown;
- FIG. 12 shows a side view of the display device according to FIG. 4 with the holding device without a housing, with an exemplary beam path of the light emanating from one of the light sources being shown;
- FIG. 13 shows a further detail of a perspective view of the display device according to FIG. 4 with the holding device without a housing;
- FIG. 14 shows a vertical section through the display device according to FIG. 4;
- 15 shows a horizontal section through the display device according to FIG. 4; 16 shows a first embodiment of an image generated by a display device according to the invention;
- FIG. 17 shows a second embodiment of an image generated by a display device according to the invention.
- the part of the display device shown in FIGS. 1 to 3 comprises two light sources 1 and a light guide 2.
- the light sources 1 are in particular designed as light-emitting diodes (LED). Alternatively, the light sources 1 can also be designed as laser diodes.
- the light guide 2 consists at least partially of a material that is transparent to the light 3 from the light sources 1.
- the light guide 2 is essentially U-shaped with two legs 4 and a connection area 5 between the two legs.
- the light guide 2 can be comparatively compact and, for example, have dimensions of between 20 mm and 40 mm in terms of width, height and depth, in particular a height in FIG. 3 of approximately 35 mm and a width and a depth of approximately 25 mm .
- the light guide 2 has two entry surfaces 6 for the light 3 from the light sources 1.
- One of the E inlet surfaces 6 is arranged on the inside of one of the legs 4.
- the light sources 1 are each arranged next to the end of one of the legs 4 so that the light 3 emanating from the light source 1 enters the entrance surface 6 of the other leg 4 (see FIG. 3). In this way, the light 3 travels a comparatively long distance from the light source 1 to the entrance surface 6, which enables a suitably large expansion of the light bundle entering the entrance surface 6.
- the two entry surfaces 6 are curved, in particular concavely curved. However, it is certainly possible that the entry surfaces are convexly curved or flat.
- the light guide 2 also has two reflective areas 7, which are formed on the outer sides of the legs 4. From these reflective areas 7, the light 3 that has entered the light guide 2 through the entrance surfaces 6 is reflected into the connection area 5.
- the display device can be set up so that the light 3 hits the reflective area 7 at an angle to the perpendicular that is larger than the critical angle of total reflection, so that the light 3 is totally reflected with a correspondingly smooth design of the surface of the reflective area 7 .
- the surface of the reflective area 7 can be mirrored.
- the connecting area 5 forms an exit surface onto which the light 3 emanating from the reflecting areas 7 impinges and through which the incident light 3 at least partially passes.
- the part of the display device shown in FIGS. 1 to 3 further comprises a hologram 8, which is applied, in particular glued, from the outside to the exit surface, in particular in the form of a volume hologram read into a film. The image read into the hologram 8 can be reconstructed to realize a desired display function.
- the hologram 8 is a transmission hologram with which the light passing through the exit surface can interact. If the angle of incidence between the incident light 3 and the plumb line on the exit surface is correspondingly large, the hologram 8 is also an edge lithologram, because the illumination angle at which the hologram 8 must be illuminated in order to reconstruct the holographic image then becomes comparatively large.
- the comparatively large illumination angle can in particular prevent the Ote order of the light used from becoming disturbingly visible to a viewer.
- the reflecting areas 7 are convexly curved and are designed in particular as a paraboloid surface. This curvature ensures that the portions of the light 3 striking the reflecting areas 7 at different angles are reflected essentially in the same direction into the connecting area 5.
- the essentially parallel light rays of the light 3 ensure essentially the same illumination angles of the hologram 8, which is advantageous for an effective reconstruction of the holographic image.
- the reflective areas 7 are designed as free-form surfaces in order to enable further optimization of the illumination or to enable optimal adaptation to the coupled-in light 3 of the light sources 1.
- the reflective areas 7 can alternatively be provided with additional optics depending on the desired light shaping of the reflected light 3.
- two holograms 8 are arranged on the light guide 2. These can both be applied, for example one above the other, to the outside of the exit surface of the light guide 2. In particular, both holograms 8 can be read into the same film.
- the holgrams 8 can have been written with light of different wavelengths, so that they also have to be reconstructed with light of different wavelengths.
- the two light sources 1 can have wavelength distributions that are different from one another, in particular colors that are different from one another.
- the light guide 2 can be used for two different light colors, for example red and yellow or red and blue or red and green, using one each Hologram 8 to reconstruct two different images for each of the light colors.
- the display device comprises a plurality of light guides 2, of which three light guides 2 arranged next to one another are shown in FIGS. 4 to 15.
- the number of light guides 2 is chosen merely as an example. Only two light guides 2 arranged next to one another can certainly be provided. Alternatively, more than three light guides 2 arranged next to one another can also be provided, for example four light guides 2 or five light guides 2 or more than five light guides 2.
- the three light guides 2 are each assigned two light sources 1, with three of the light sources 1 being arranged on a common circuit board 9, which extends in the direction in which the light guides 2 are arranged next to one another.
- the light sources 1 assigned to the respective light guide 2 are arranged as shown in FIGS. 1 to 3.
- At least one hologram 8 is provided per light guide 2, so that mutually adjacent holographic images can be reconstructed by interaction with the light 2 from the respective light sources 1.
- the embodiment of a display device shown in FIGS. 4 to 15 comprises a holding device 10 and a housing 11 which surrounds the light guides 2 at the back and sides.
- a cover plate 12 and a design panel 13 are arranged on the front of the housing 11.
- the cover plate 12 covers the exit surfaces or the holograms 8 of the light guides 2.
- the design panel 13 surrounds the exit surfaces or the holograms 8 of the light guides 2 in order to achieve an attractive design of the display device.
- it is possible to do without the cover disk 2 if, for example, a larger cover disk is provided at the installation location, behind which the display device can be placed.
- the housing 11 can also be omitted if it is not necessary in a protected installation environment.
- the holding device 10 has two light shading elements 14 on the back of the light guides 2 or on the side of the light guides 2 facing away from the exit surface.
- the two light shading elements 14 each start from a connection area between individual light guides 2 and extend from the light guides 2 into the space between the circuit boards 9. In this way, the light shading elements 14 can prevent unwanted light from entering from a light source 1 into the light guide assigned to an adjacent light source 1 2 at least partially prevent (see in particular Fig. 11). This makes it possible, in particular, to reduce the occurrence of double images or blurring in adjacent holographic images.
- the holding device 10 comprises further light shading elements 15, 16, which cover parts of the light guides 2 in order to largely prevent unwanted light from entering the light guides 2 from one of the light sources (see in particular FIG. 14).
- the display device can, for example, fulfill a warning and information function.
- the display device can control the plurality of light sources 1 in such a way that the individual holographic images reconstructed by the interaction of the light 3 with the holograms 8 arranged on or in the individual light guides 2 are generated at a time offset from one another, in particular to create a dynamic or animated composite to create image.
- the multiple light sources 1 can be controlled sequentially, whereby a dynamic or animation is introduced into the holographic display, which causes an increase in attention and further increases security.
- a warning can also be provided for the driver in a gradation of danger.
- Fig. 16 shows the display of a display device which is composed of three holographic images 17.
- the display device can be part of a blind spot assistant and can use an animation to indicate a vehicle that is in a blind spot.
- Fig. 17 shows the display of a display device, which is also composed of three holographic images 17.
- the display device can be part of a lane change assistant and can use an animation to indicate an oncoming vehicle that is preventing the lane change.
- any pictograms, texts or other content of any kind can be stored in the at least one hologram.
- the generated images 17 can be animated in both directions - from top to bottom or vice versa or from left to right or vice versa.
- the brightness of the individual objects in the holographic image 17 or the individual sections of the image can be varied, for example the brightness can be varied from low to bright for a graduated warning effect.
- the viewing angle range for the holographic function can be defined differently.
- the field of vision for the left, driver-side hologram function, as well as the other field of vision for the right, passenger-side hologram function can be designed to be narrower for the driver's position.
- the eyebox or the viewing angle range can only be limited to the driver, so that a high luminance or brightness can advantageously be achieved even with little light in the holographic system. Regardless of this, any desired eyebox can be defined and designed for other installation situations, either for a specific seat in the vehicle or for several seats.
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Illuminated Signs And Luminous Advertising (AREA)
- Arrangements Of Lighting Devices For Vehicle Interiors, Mounting And Supporting Thereof, Circuits Therefore (AREA)
- Diffracting Gratings Or Hologram Optical Elements (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102022106488.3A DE102022106488B3 (de) | 2022-03-21 | 2022-03-21 | Anzeigevorrichtung für ein Fahrzeug |
| PCT/EP2023/053842 WO2023179978A1 (de) | 2022-03-21 | 2023-02-16 | Anzeigevorrichtung für ein fahrzeug |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| EP4496725A1 true EP4496725A1 (de) | 2025-01-29 |
Family
ID=85321068
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| EP23706545.3A Pending EP4496725A1 (de) | 2022-03-21 | 2023-02-16 | Anzeigevorrichtung für ein fahrzeug |
Country Status (5)
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| US (1) | US12600232B2 (de) |
| EP (1) | EP4496725A1 (de) |
| CN (1) | CN119156302A (de) |
| DE (1) | DE102022106488B3 (de) |
| WO (1) | WO2023179978A1 (de) |
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| EP4714712A1 (de) * | 2024-09-23 | 2026-03-25 | Hübner GmbH & Co. KG | System zum auslösen einer funktion in einem fahrzeug des öffentlichen personenverkehrs |
Family Cites Families (21)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| IT1256894B (it) | 1992-07-24 | 1995-12-27 | Carello Spa | Dispositivo di illuminazione |
| JP2986773B2 (ja) * | 1998-04-01 | 1999-12-06 | 嶋田プレシジョン株式会社 | 点光源用の導光板 |
| DE19927712A1 (de) * | 1998-12-02 | 2000-06-08 | Hsm Gmbh | Holografisches Display-System zur Darstellung von Information |
| US7380962B2 (en) * | 2004-04-23 | 2008-06-03 | Light Prescriptions Innovators, Llc | Optical manifold for light-emitting diodes |
| DE102004046256A1 (de) * | 2004-09-23 | 2006-04-06 | Osram Opto Semiconductors Gmbh | Oberflächenleuchtsystem |
| JP5738742B2 (ja) * | 2011-11-09 | 2015-06-24 | 株式会社東芝 | 面光源装置 |
| JP5911397B2 (ja) * | 2012-07-31 | 2016-04-27 | スタンレー電気株式会社 | 車両用前照灯 |
| CN110749951B (zh) * | 2012-10-24 | 2022-12-30 | 视瑞尔技术公司 | 照明设备 |
| DE102013110839A1 (de) * | 2013-10-01 | 2015-04-02 | Hella Kgaa Hueck & Co. | Beleuchtungsvorrichtung für Fahrzeuge |
| JP2015179579A (ja) * | 2014-03-18 | 2015-10-08 | 株式会社東芝 | 導光体および照明装置 |
| JP6235948B2 (ja) * | 2014-03-27 | 2017-11-22 | 株式会社小糸製作所 | 車両用灯具 |
| DE102017206882A1 (de) | 2017-04-25 | 2018-10-25 | Bayerische Motoren Werke Aktiengesellschaft | Beleuchtungsvorrichtung für ein Kraftfahrzeug |
| DE102017109314A1 (de) | 2017-05-02 | 2018-11-08 | HELLA GmbH & Co. KGaA | Beleuchtungsvorrichtung für Fahrzeuge |
| EP3647857A4 (de) * | 2017-05-29 | 2021-10-06 | Artience Lab Inc. | Optische ablenkeinrichtung, bildanzeigevorrichtung, signalvorrichtung, bildaufzeichnungsmedium und bildwiedergabeverfahren |
| DE102017124296A1 (de) * | 2017-10-18 | 2019-04-18 | Carl Zeiss Jena Gmbh | Leuchteinrichtung für Fahrzeuge |
| JP6839684B2 (ja) * | 2018-08-22 | 2021-03-10 | 矢崎総業株式会社 | ルーフモジュール |
| DE102019206025A1 (de) | 2019-04-26 | 2020-10-29 | OSB AG Ingenieur- und IT-Dienstleistungen | Holografisches Anzeigeelement, Vorrichtung zur Anzeige holografischer Darstellungen, Verfahren zur Herstellung eines holografisch optischen Elements sowie Verwendung eines holografischen Anzeigeelements |
| DE102021200543A1 (de) * | 2021-01-21 | 2022-07-21 | Carl Zeiss Jena Gmbh | Miniaturisierte holographische Anzeige |
| DE102021116880B3 (de) * | 2021-06-30 | 2022-09-08 | Preh Gmbh | Bedienelement mit holografischer Funktionsanzeige zur Visualisierung der dem Bedienelement zugeordneten Schaltfunktion und/oder dessen jeweiligen Schaltzustands sowie zugehörige Anordnung |
| DE102021129851A1 (de) * | 2021-11-16 | 2023-05-17 | HELLA GmbH & Co. KGaA | Lichtleiterelement für eine Beleuchtungsvorrichtung für ein Kraftfahrzeug |
| DE102022100799A1 (de) * | 2022-01-14 | 2023-07-20 | HELLA GmbH & Co. KGaA | Beleuchtungsvorrichtung für ein Kraftfahrzeug |
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2023
- 2023-02-16 WO PCT/EP2023/053842 patent/WO2023179978A1/de not_active Ceased
- 2023-02-16 CN CN202380037232.1A patent/CN119156302A/zh active Pending
- 2023-02-16 EP EP23706545.3A patent/EP4496725A1/de active Pending
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2024
- 2024-09-20 US US18/891,150 patent/US12600232B2/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| DE102022106488B3 (de) | 2023-07-06 |
| US12600232B2 (en) | 2026-04-14 |
| WO2023179978A1 (de) | 2023-09-28 |
| US20250010716A1 (en) | 2025-01-09 |
| CN119156302A (zh) | 2024-12-17 |
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Owner name: HELLA GMBH & CO. KGAA Owner name: AUDI AG Owner name: CARL ZEISS JENA GMBH |