Display system

Abstract

Display system for a vehicle (2), wherein the vehicle (2) has an interior which can be closed with a pivotable hood (12), wherein the display system comprises a projector (4) arranged in the interior and a light deflection system with at least one movable mirror (6, 8), wherein the projector (4) is configured to project light (10) onto the light deflection system, wherein a final mirror (8) of the light deflection system is configured as the at least one movable mirror (6, 8) to reflect light (10) incident upon it onto at least one projection surface configured to display content, wherein the at least one projection surface is configured as a vehicle-external screen (18) located outside the vehicle (2) in front of the vehicle (2), wherein the final movable mirror (8) of the light deflection system is configured toto reflect the light (10) striking it through a hood opening (16) in the closed hood (12) onto the vehicle-external screen (18) in front of the vehicle (2).

Description

[0001] The invention relates to a display system and a method for displaying content.

[0002] The publication DE 10 2018 213 449 A1 describes a display device for a motor vehicle.

[0003] A video display system for a motor vehicle is known from publication WO 93 / 23790 A1.

[0004] Document KR 20050106722 A shows a projection system for a motor vehicle.

[0005] Against this background, the challenge was to display content differently on a single device.

[0006] This problem is solved by a display system and a method with the features of the independent claims. Embodiments of the display system and the method are described in the dependent claims and the description.

[0007] The display system according to the invention is designed for a vehicle, e.g., a motor vehicle, wherein the vehicle has an interior that can be closed, at least temporarily, by a pivotable hood. The display system comprises a projector arranged in the interior and a light deflection system with at least one movable mirror. The light deflection system can have at least one mirror, i.e., one or more mirrors, one of which is movable relative to the interior and / or the hood. The projector is designed to project light or a projection beam for a display content, e.g.,to generate at least one image and project it onto the light deflection system, usually onto the at least one mirror of the light deflection system, wherein a final mirror of the light deflection system is the at least one movable mirror designed to reflect light and / or the projection beam striking it onto at least one projection surface designed to display the content shown, which may be entertainment content and / or informational content, e.g., infotainment content.

[0008] The light is projected into the light deflection system by the projector, passing through the light deflection system up to the last movable mirror at an output of the light deflection system and continuing to exit when, starting from the last movable mirror, it is reflected onto and strikes the at least one projection surface, the light being reflected again from the at least one projection surface, thus displaying the display content comprising the at least one image.

[0009] The vehicle has a body with a body opening that can be closed or opened with the hood. In one embodiment of the display system, at least one projection surface is designed as an internal screen on and / or in an inner surface of the hood, which may be attached to and / or in the inner wall. The last movable mirror of the light deflection system is designed to reflect the incident light or projection beam onto the internal screen, which serves as the internal projection surface of the open hood.

[0010] It is also possible that the at least one projection surface is designed as an external screen located outside the vehicle, and that such an external screen is used as the at least one projection surface of the display system. The last movable mirror of the light deflection system is designed to reflect the incident light or projection beam through an opening in the closed or sealed hood onto the external screen. The hood opening can be temporarily closed and opened, for example, by a flap in and / or on the hood. The flap is opened at least when light from the last movable mirror inside the vehicle is to be reflected through the hood opening onto the external projection surface.

[0011] It is possible that the at least one movable mirror, i.e., at least the last movable mirror of the light deflection system at the output or end of the light deflection system, is usually pivotable or to be pivoted by an angle relative to the at least one projection surface, relative to the hood, e.g., the hood opening provided therein, and / or relative to the interior, regardless of whether it is closed by the hood or whether it is open, and / or is movable or to be moved between two positions.

[0012] In one embodiment, the light deflection system of the display system has several mirrors, comprising at least a first mirror and a last mirror. The projector is configured to project the light or projection beam onto the first mirror of the light deflection system. The first mirror is configured to direct the light projected onto it by the projector, directly or indirectly within the light deflection system, via at least one further mirror of the light deflection system, onto the last movable mirror of the light deflection system. The last movable mirror is configured to direct the light or projection beam striking it onto the at least one vehicle-internal projection surface on the inside of the hood, e.g.to reflect and thus project onto the hood, and / or onto at least one external projection surface, usually in front of the vehicle.

[0013] In one embodiment, the light deflection system has two mirrors: the first mirror and the movable last mirror, which also serves as the second mirror. Light is projected as a projection beam from the projector onto the first mirror and reflected from the first mirror onto the last movable mirror, from which it is projected onto at least one projection screen located inside and / or outside the vehicle.

[0014] In a further embodiment of the display system, the light deflection system has only one final movable mirror, which in this case is the sole mirror and also corresponds to the first mirror of the light deflection system. The projector is designed to project the light directly onto this final movable mirror, which is then designed to reflect the light projected directly onto it by the projector and onto the at least one internal and / or external projection surface of the vehicle.

[0015] It is envisaged that the projector and / or the light deflection system, or at least one mirror of the light deflection system, is arranged in an interior space in the front area of ​​the vehicle. This interior space is configured as a storage compartment and / or the engine compartment, with the hood serving as the front hood. The last movable mirror can be arranged within this interior space and moved within it, i.e., pivoted and / or shifted, as well as positioned at a specific angle and angle within the interior space. Alternatively, the last movable mirror can be moved out of the interior space, e.g., vertically shifted, and positioned above the interior space at a specific angle and angle. The movable mirror can be moved between different positions both within and / or outside the interior space.It can also be moved back into the interior from a position outside the interior. For this purpose, the display system has at least one electrical and / or mechanical module by which the at least one movable mirror, i.e., at least the last movable mirror of the light deflection system, can be moved automatically, i.e., shifted and / or pivoted by an angle. Furthermore, it is conceivable that the projector can also be moved relative to the interior and the light deflection system, i.e., pivoted and / or shifted.

[0016] The method according to the invention is provided for displaying content, e.g., at least one image, using a display system for a vehicle, e.g., an embodiment of the presented display system. The vehicle, e.g., a motor vehicle, has an interior that can be at least temporarily closed by a pivotable hood and also at least temporarily opened and released to the outside. The embodiment of the display system has a projector arranged in the interior and a light deflection system with at least one movable mirror. Light, e.g., from the projector, is projected onto the vehicle.The projection beam is generated as a template for the display content and projected onto the light deflection system, wherein light striking a final mirror of the light deflection system, which is at least one movable mirror, reflects light onto at least one projection surface and the display content is shown on the at least one projection surface.

[0017] The last movable mirror, as a movable optical module, can be designed or described, for example, as a pivoting element, or it can be connected to the vehicle and / or the interior via a pivoting element, which is the at least one electrical and / or mechanical module of the display system, and moved relative to the interior by means of the pivoting element. The last mirror and / or the pivoting element is located in the front of the vehicle and is arranged on and / or in the front of the vehicle. The at least one electrical and / or mechanical module of the display system for moving the last mirror can, for example, be designed as a flap that moves, or can be moved, in the opposite direction to the pivoting hood used to close the interior.Alternatively or additionally, at least one electrical and / or mechanical module of the display system can be configured to move the last mirror vertically relative to the interior, either upwards or downwards through the body opening and / or through the hood opening, whereby the last movable mirror can be extended vertically out of and back into the interior. The light from the last movable mirror can be reflected either from within the interior or from outside the interior, e.g., from a position above it, onto the vehicle's internal and / or external display screen.

[0018] If the vehicle's internal screen is used as the projection surface, the hood is opened when the vehicle is stationary or parked. The screen, mounted on and / or inside the hood, serves as a projection surface for entertainment or other display content. The inside of the hood can be used directly as the screen. Alternatively, the screen can be mounted as an additional component on or inside the hood's inner wall. The screen is typically a single color, such as white. This applies to both the vehicle's internal screen and any external screen, which is usually freely selectable.

[0019] The light deflection system includes at least one movable final mirror or reflector, which is a reflective component. If the light deflection system has two or more mirrors or reflectors, at least the last one at the system's output is movable. An upper final mirror of the light deflection system is located, for example, on a flap as a pivoting element.as an electrical and / or mechanical module, wherein the projector light is reflected from the interior onto the screen by the movable last mirror, wherein a projection beam of light from the projector in the interior is reflected by the light deflection system, i.e., at least by the last movable mirror, through the body opening and / or through the hood opening to the at least one screen outside the interior, wherein the light and / or the projection beam is reflected and / or deflected from a plane of the interior, the body opening, and / or the hood opening. In addition to the at least one mirror, and thus also the last movable mirror, the display system can include at least one lens for optimizing the projection of the light, which is arranged between the projector and the first mirror, or in the light deflection system between two mirrors, e.g., in front of the last movable mirror.An optical beam path for the light or projection beam runs from the projector to the last movable mirror, whereby the light passes through at least one lens and / or is reflected by at least one additional mirror (optionally present) between the projector and the last movable mirror. The projection screen, e.g., a video screen, can be positioned at a suitable distance from the viewer and is not limited by other dimensions within the passenger compartment of the vehicle. The displayed content can be in color.

[0020] It is understood that the features mentioned above and those to be explained below can be used not only in the combination specified in each case, but also in other combinations or on their own, without departing from the scope of the present invention.

[0021] The invention is schematically illustrated with reference to embodiments in the drawing and is described schematically and in detail with reference to the drawing.

[0022] Fig. 1, Fig. 2 and Fig. Figure 3 shows a schematic representation of an embodiment of the display system according to the invention for a vehicle when carrying out different embodiments of the method according to the invention.

[0023] The figures are described in a coherent and comprehensive manner. The same reference symbols are assigned to the same components.

[0024] The Fig. Figures 1 to 3, each schematically depicting a vehicle 2, here a motor vehicle, have a body that includes a passenger compartment for the vehicle's occupants and an interior, here an engine compartment and / or storage compartment, which is located in the forward direction of travel of the vehicle 2, for example, in the area of ​​the front and / or bow of the vehicle 2, in front of the passenger compartment. The body has a body opening that can be either closed or opened by a hood 12, with the interior located below the body opening. When the hood 12 is closed, it is also enclosed, and when the hood 12 is open, it is accessible to the outside and can be accessed from the outside or the vehicle's surroundings. The body opening for the interior has a front edge and a rear edge.a rear edge, with the front edge positioned in front of the rear edge in the forward direction of travel. The hood 12 is pivotably mounted at the front edge of the body opening relative to it via at least one first hinge or hinge mechanism and / or at least one first joint or joint mechanism. Furthermore, the hood 12 may be pivotably mounted at the rear edge of the body opening relative to it via at least one second hinge or hinge mechanism and / or at least one second joint or joint mechanism. The at least one hinge and / or joint is designed to open the hood in both directions, i.e., clockwise or counterclockwise.

[0025] The embodiment of the display system according to the invention for the vehicle 2 comprises a projector 4 as a component, which is arranged as a light source in the interior and, in the configuration as a movable projector 4, can also be moved between different positions in the interior and can be fixed at least temporarily in one position.

[0026] Furthermore, the display system includes a light deflection system for deflecting light 10, e.g., from at least one projection beam for the light generated and emitted by the projector 4. The light deflection system comprises two mirrors 6, 8 or reflectors, namely a first mirror 6 and a last mirror 8, whereby the last mirror 8 can be moved relative to the interior and the body opening, e.g., between different positions inside and / or outside the interior, and can be fixed at least temporarily in any of these positions.

[0027] Furthermore, the display system features an in-vehicle screen 14 as an in-vehicle projection screen, which is located here on an inside of the hood 12 ( Fig. 2) and is used for a first embodiment of the method for displaying a display content. Furthermore, the display system has a vehicle-external screen 18 as a vehicle-external projection screen, which is arranged here in the forward direction of travel in front of the vehicle 2, with the vehicle 2 being arranged accordingly behind it ( Fig. 3), wherein the vehicle-external screen 18 is used in a second embodiment of the method. In both embodiments of the method, the vehicle 2 is stationary or at rest.

[0028] In the first embodiment of the method ( Fig. 2) When the hood 12 is opened and / or pivoted, the vehicle's internal screen 14 is raised in the area of ​​the hood 12, which is designed or designated here as the front hood. The vehicle's internal screen 14, and possibly also the hood 12, are vertically oriented. Furthermore, the last movable mirror 8 of the light deflection system is moved outwards from the interior through the opened or cleared body opening, pivoting in this case. Light 10 from the projector 4 is projected largely horizontally, against the direction of forward travel, first onto the first mirror 6 and then largely vertically upwards onto the last movable mirror 8. From there, it is reflected and / or projected onto the vehicle's internal screen 14, displaying content visible in the passenger compartment of the vehicle 2.

[0029] It is additionally provided that a hood opening 16 is arranged in the hood 12, which can be opened or closed at least temporarily by means of a flap (not shown). In the second embodiment of the method ( Fig.3) The hood 12 is designed to be closed for the interior or the body opening, with the hood 12 covering the interior from the outside. However, the flap in the hood opening 16 is folded upwards and / or pivoted. Through the now open hood opening 16, the movable last mirror 8 of the light deflection system is moved out of the interior, i.e., vertically upwards and / or pivoted, whereby the last mirror 8 can also be moved upwards or downwards. Light 10 from the projector 4 is here redirected and / or reflected via the first mirror 6 to the last movable mirror 8 and from there reflected and / or projected onto the vehicle-external screen 18 in front of the vehicle 2, whereby a display content is shown on the vehicle-external screen 18 or a corresponding vehicle-external surface, which is visible in the passenger compartment of the vehicle 2.

[0030] In both embodiments of the method, it is possible to use the same light deflection system, which includes at least the pivotable and extendable last mirror 8, and the same projector 4 to display the content on different screens 14, 18 or to use it for external projection outside the passenger compartment. In addition to the mirrors 6, 8, the light deflection system comprises at least one lens as an optical module, the optical modules of which support the projection of light 10 onto the vehicle's internal and / or external screen 14, 18. The position and angle of the last mirror 8 relative to each screen 14, 18, and optionally also relative to the projector 4 and the first mirror 6, are set and / or adjusted.

[0031] An occupant of vehicle 2 can experience a cinematic experience with the display system, independent of the presence of an external projection surface. A large display area can be generated on the respective screen 14, 18 for the displayed content at an adjusted optical distance from the passenger compartment. This offers greater comfort, as large display areas at close range are perceived as unpleasant. A digital light processing projector (DLP), a liquid crystal display, and / or a projector 4 with LEDs and / or at least one laser can be used as the projector 4 or light source for the light 10. The display system includes at least one control unit for controlling the projector 4 and / or the light deflection system, i.e., at least the last mirror 8.

[0032] The control unit and / or a corresponding operating module can be located in the passenger compartment, whereby the position and / or angle of the last mirror 8 relative to the interior and / or a respective screen 14, 18 can be moved, i.e., swiveled and / or shifted, and the projector 4 and / or the last mirror 8 can be electrically controlled from the passenger compartment. The last movable mirror 8 is adjustable, among other things, in its vertical height and can be extended from the body opening or the hood opening 16.

[0033] If vehicle 2 is powered by at least one traction battery and is designed or designated as an electric or hybrid vehicle, then, for example, the front hood (hood 12) of vehicle 2 is used as a service hood for the interior and less as an engine hood, since most interior components require little maintenance. This makes using hood 12, or its interior surface, as a projection screen simpler and reduces the likelihood of internal contamination.

[0034] A particular embodiment of the method can be carried out when the vehicle 2 is stationary during a charging process to charge a traction battery of the vehicle 2, e.g. at a charging station, or when the vehicle 2 is moving slowly during automated driving. REFERENCE MARK: 2 vehicles 4 projectors 6, 8 mirrors 10 lights 12 Hood 14 in-vehicle video walls 16 Hood opening 18 vehicle-external screens QUOTES CONTAINED IN THE DESCRIPTION

[0000] This list of documents cited by the applicant was automatically generated and is included solely for the reader's convenience. The list is not part of the German patent or utility model application. The DPMA accepts no liability for any errors or omissions. Cited patent literature

[0000] DE 102018213449 A1

[0002] WO 9323790 A1

[0003] KR 20050106722 A

[0004]

Claims

[1] Display system for a vehicle (2), wherein the vehicle (2) has an interior space which can be closed with a pivotable hood (12), wherein the display system has a projector (4) arranged in the interior space and a light deflection system with at least one movable mirror (6, 8), wherein the projector (4) is designed to project light (10) onto the light deflection system, wherein a last mirror (8) of the light deflection system, as the at least one movable mirror (6, 8), is designed to reflect light (10) which strikes it onto at least one projection surface which is designed to represent a display content. [2] Display system according to claim 1, wherein the at least one projection surface is designed as an internal vehicle screen (14) on an inner side of the hood (12), wherein the last movable mirror (8) of the light deflection system is designed to reflect the light (10) striking it onto the internal vehicle screen (14) of the opened hood (12). [3] Display system according to claim 1 or 2, wherein the at least one projection surface is designed as a vehicle-external screen (18) outside the vehicle (2), wherein the last movable mirror (8) of the light deflection system is designed to reflect the light (10) striking it through a hood opening (16) in the closed hood (12) onto the vehicle-external screen (18). [4] Display system according to one of the preceding claims, in which the at least one movable mirror (6, 8) is pivotable and / or displaceable. [5] Display system according to one of the preceding claims, in which the light deflection system has a plurality of mirrors (6, 8), wherein the projector (4) is designed to project the light (10) onto a first mirror (6) of the light deflection system, wherein the first mirror (6) is designed to direct the light (10) projected onto and incident on it within the light deflection system onto the last movable mirror (8) of the light deflection system. [6] Display system according to one of claims 1 to 4, wherein the light deflection system comprises only the one last movable mirror (8), wherein the projector (4) is designed to project the light (10) onto the last movable mirror (8). [7] Display system according to one of the preceding claims, wherein the projector (4) is arranged in an interior space in a front region of the vehicle (2), wherein the interior space is designed as a storage space and / or as an engine compartment of the vehicle (2), wherein the hood (12) is designed as a front hood. [8] Method for displaying a display content with a display system for a vehicle (2), wherein the vehicle (2) has an interior which is closed with a pivotable hood (12), wherein the display system has a projector (4) arranged in the interior and a light deflection system with at least one movable mirror (6, 8), wherein light (10) is projected from the projector (4) onto the light deflection system, wherein a last mirror (8) of the light deflection system, as the at least one movable mirror (6, 8), reflects light (10) which strikes it onto at least one projection surface and the display content is displayed on the at least one projection surface.

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