Side mirror replacement display having a floating real image plane in a vehicle

Abstract

The invention relates to a side mirror replacement display for a vehicle, comprising: - an imager for creating a display content that replaces a side mirror of the vehicle and a light beam that transports this display content; - a capping pane or capping layer that is designed for transmission of the light beam and for arrangement in a driver-facing surface portion of a door trim, A-pillar or instrument panel; and - an imaging optics unit arranged in the beam path between the imager and the capping pane or capping layer and embodied such that the light beam leaves the capping pane or capping layer directly in the direction of an eye box, which has been predetermined for the driver's eyes, and the display content is imaged on a real image that floats in the air between the eye box and the capping pane or capping layer, said image being designed to be a replacement for the driver looking at the side mirror.

Description

[0001] Description

[0002] Side mirror replacement display with floating real image plane in a vehicle

[0003] The invention relates to a side-mirror replacement display designed and configured for installation in a vehicle and for generating an image intended to replace the driver's view of a side-mirror. The invention also relates to a corresponding operating method, a correspondingly configured control unit, and a vehicle equipped with this display.

[0004] For design reasons, to minimize aerodynamic drag, or to reduce vehicle width, the use of camera-based mirror replacement systems instead of the two side mirrors (also called exterior mirrors) is common. For this purpose, displays are installed at suitable positions within the vehicle's interior, showing the driver the image from a side- and rear-facing exterior camera. However, the installation of additional displays in the interior usually has a negative impact on the interior design and the sense of space, as well as the comfort of the vehicle's occupants.

[0005] For example, DE 10 2016 124 125 A1 proposes in this context an interior trim part of a motor vehicle, which comprises a molded part made of glass or a glass-like material, which is arranged on the side of the interior trim part facing the interior of the motor vehicle, a thin-film display device

[0006] , which, from the perspective of the motor vehicle interior, is arranged behind the molded part or is integrated into it, and comprises a control device for controlling the thin-film display device so that it emits an image through the molded part into the interior of the motor vehicle. The interior trim part can, for example, form an insert of the interior door trim or part of an instrument panel or a center console. It can provide a decorative illuminated surface as well as ambient lighting, but can also represent one or more displays and / or operating elements. The control device and the thin-film display device can also be configured such that a camera recording is displayed on the thin-film display device in order to form a camera monitor which, for example, replaces the side view mirror or another view mirror.

[0007] It is an object of the present invention to provide an alternative and / or improved side mirror replacement display for the driver of a vehicle, which enables an improvement over known devices, for example with regard to the installation space, the feeling of space for the occupants, the contrast, the visibility, the image quality and / or other aspects.

[0008] This object is achieved by a side-mirror replacement display (hereinafter also referred to as "display") according to claim 1, as well as by an associated operating method, a correspondingly configured control unit, and a vehicle equipped therewith according to the independent claims. Further embodiments are specified in the dependent claims. All further features and effects mentioned in the claims and the following description for the side-mirror replacement display also apply to the method, the control unit, and the vehicle, and vice versa.

[0009] According to a first aspect, a side-view mirror replacement display is provided, which is designed for installation in the cockpit area of ​​a vehicle. The vehicle can be a motor vehicle, but also any other land, air, or water vehicle. Unless otherwise stated, all spatial orientation terms used herein, such as "top," "bottom," "side," "left," "right," "horizontal," "vertical," etc., refer to the usual vehicle-fixed Cartesian coordinate system with mutually perpendicular longitudinal, transverse, and vertical directions of the vehicle.

[0010] The side mirror replacement display comprises an imager configured to generate a display content and a light beam (also referred to herein as "projector light") transporting said display content, as well as a cover plate (also referred to as cover glass) or cover layer configured to transmit the light beam. The imager and its control unit are configured and configured to generate a display content designed to replace a driver's view of a conventional side mirror of the vehicle. For this purpose, the display may, for example, comprise a suitable camera system and / or a control unit, or communicate therewith wirelessly and / or wired. The camera system and / or the control unit are configured and configured to capture the surroundings to the side and rear of the vehicle and to control the imager to generate the required display content based on the currently captured surroundings.

[0011] In principle, any imaging technology is suitable for the imager. In particular, it can be designed to dynamically generate the required display content in a two-dimensional pixel matrix. In particular, the imager can be designed as a light-transmitting or light-emitting flat panel display, such as a liquid crystal display (LCD) or a pLED or OLED display, but alternatively also as a projector-based imager or a waveguide-based display.

[0012] The cover plate or layer (or its user-facing surface) is designed, when the side mirror replacement display is installed in the vehicle, to form a surface section of a door trim, an A-pillar, or an instrument panel of the vehicle that faces the driver, i.e., is arranged with its surface directly opposite the driver. In particular (but not necessarily), this surface section can be arranged at an angle with respect to the vertical direction of the vehicle such that its upper edge, in the longitudinal direction of the vehicle, is closer to the driver and their vehicle seat than its lower edge, in order to ensure that light rays coming from the sun or artificial light sources inside and outside the vehicle and striking the cover plate / cover layer from above are always reflected towards the vehicle floor and therefore cannot enter the eyes of the driver or other passengers as disruptive reflections.In addition, by orienting the cover plate / cover layer away from the driver and towards the ground, it can be made even more difficult for the driver to gain an unwanted view into the interior of the side mirror replacement display.

[0013] The cover plate / cover layer can be made of any material suitable for its functionality described herein, for example, plastic or glass. The cover plate / cover layer, and in particular its driver-side surface, can be planar (i.e., flat), for example, or can have a freeform surface on one or both sides to create a predetermined optical effect. Last but not least, the cover plate / cover layer can also serve to mechanically protect the optical components of the display, in particular the imaging optics and the image generator.

[0014] Furthermore, the side mirror replacement display comprises an imaging optic arranged and configured in the beam path between the imager and the cover plate / cover layer such that the light beam leaves the cover plate / cover layer in a direction of radiation that leads directly (i.e., without further deflection surfaces) to a spatial area (eyebox) predetermined for the driver's eyes. The imaging optic is configured to present the display content to the driver as a real image floating freely in the air in the passenger compartment at a predetermined position between the eyebox and the cover plate / cover layer. The driver can see this image when their eyes are in said eyebox and they are looking in the direction of the cover plate / cover layer. It is not visible to other vehicle occupants whose eyes are not in said eyebox, so they cannot be disturbed by it. The image is real, i.e.It can be recorded by light-sensitive material (e.g. photographic film) and made visible to everyone through a diffusely light-scattering surface (e.g. a sheet of paper) by placing such a material or surface at the specified image position between the eyebox and the cover plate / cover layer.

[0015] The side mirror replacement display and its control are designed and configured in such a way that the real image floating in the air replaces a view into the vehicle's side mirror for the driver.

[0016] One idea involves integrating a side mirror replacement display into the instrument panel, A-pillar, or door panel in the form of a projector unit that generates a realistic floating image plane in the vehicle interior via imaging optics in the form of at least one microlens array, imaging mirror, etc. The imaging optics and the image generator behind it, with the display content generated on it, can be hidden behind the cover glass or cover layer from the view of the driver and other vehicle occupants. For example, the cover glass / cover layer can be designed as a so-called Shytech film and / or arranged inconspicuously in a well-integrated opening aperture in the vehicle interior paneling. This display, in the form of a floating real image, is visible only to the driver. It is therefore not visible to other occupants.

[0017] As is customary, an eyebox is defined as a two- or three-dimensional spatial area from which the floating real image is fully visible. In other words, the light beam is essentially confined to this spatial area. Therefore, the generated image is only visible to the driver if their eyes are within the designated eyebox, which, for example, does not extend beyond the width of their vehicle seat. This way, other occupants, such as the front passenger or other passengers, are not visually disturbed by this display because they cannot see it.

[0018] By means of the aforementioned imaging optics, in particular by a suitable selection of their effective focal length, the floating real image can be generated, in particular, at a shorter image distance from the driver's eyes than with a hard display surface or a virtual image generation. Furthermore, by a suitable selection of the mutual arrangement and design of the image generator and the imaging optics, an optimal orientation (in terms of image inclination) of the floating image plane or surface for viewing the generated real image can be achieved. This orientation is largely independent of the surface geometry of the instrument panel or other vehicle paneling or the cover window / cover layer and can therefore deviate significantly from it.In particular, this makes it possible to create a floating real image plane or image surface at positions and with orientations that are not available for hard display surfaces due to the freedom of movement required by the driver and other occupants in front of their vehicle seats.

[0019] As already mentioned, the imaging optics can, in particular, comprise a microlens array or an arrangement of two or more microlens arrays arranged consecutively in the beam path. The number of microlens arrays and their lens or surface geometry can be selected differently depending on the requirements of a specific application in order to enable different aperture angles and imaging properties (such as magnification, image distance, etc.).

[0020] According to one embodiment, the imaging optics consist of a microlens array or an arrangement of two or more microlens arrays arranged consecutively in the beam path. Compared to imaging optics based on imaging mirrors or lenses, microlens arrays require less installation space and enable, for example, a nearly sandwich-like construction of the entire display with a correspondingly short beam path. As a result, the display can, in particular, have a total thickness of less than 5 cm, for example, approximately 3 to 4 cm, approximately 3 to 3.5 cm, or even less, which makes its integration possible, for example, in an A-pillar or in a door panel of the vehicle.

[0021] In a further development of this embodiment, the two or more microlens arrays arranged successively in the beam path are arranged and configured mirror-symmetrically to one another in the beam propagation direction. This allows for particularly good optical functionality, in particular a particularly high imaging quality for the floating real image.

[0022] In order to make it significantly more difficult for the driver and other vehicle occupants to see inside the side mirror replacement display, or even to prevent it almost completely, the cover plate or layer can be designed to be at least partially opaque to ambient light entering from outside. To this end, it can comprise, for example, a perforated film, particle addition, coloring, tinting, a polarization filter and / or an LC layer that can be switched on uniformly (i.e. as a whole) or in segments. In particular, the cover plate or layer can have a higher transmittance for the outward-facing projector light than for the ambient light entering from outside, for example by means of layers / structures that block light on one side or suitable polarization filters, optionally in combination with polarized projector light.

[0023] This reduction in transparency can darken the cover screen / cover layer to such an extent that it creates a dark or even black background for a particularly high-contrast display of the floating real image. Since in this case the cover screen / cover layer, with the interior of the side mirror replacement display behind it, serves as the background, darkening it increases the image contrast. And since the image, unlike a head-up display (HUD), where it is reflected via the vehicle's windshield into the driver's field of vision, is not displayed against the bright exterior of the vehicle, perfect visibility can be achieved with a significantly lower projector light intensity than with a HUD, so that even despite a certain attenuation of the projector light due to the darkened cover screen / cover layer, a higher image contrast can be achieved.

[0024] In other words, the cover plate / cover layer can be deliberately darkened to serve as a contrast medium for displaying the floating real image with the desired contrast. Since the ambient light, unlike projector light, must pass through the cover plate / cover layer twice to illuminate the interior of the display for the occupants, it can be attenuated at least twice as much as the projector light by light-absorbing particles, perforation, or a suitable polarization filter in the cover plate / cover layer. For example, a perforated film with a transmittance of approximately 40% can ensure perfect visibility of the floating real image for the driver, partly because the cover plate / cover layer transmits less than 16% of the disruptive ambient light, thus creating a dark image background.

[0025] In the above embodiment with the imaging optics comprising one or more microlens arrays, the cover layer can, for example, be arranged on a driver-side surface of the last microlens array in the beam path and be designed to largely prevent vehicle occupants from seeing the interior of the display. In this case, the driver-side surface of the last microlens array in the beam path can, for example, be planar or designed as a freeform surface. Alternatively, the cover plate can also be arranged separately from the microlens array or the arrangement of microlens arrays and be designed to largely prevent vehicle occupants from seeing the interior of the display. Alternatively or in addition to the microlens arrays, the imaging optics can, for example, comprise at least one imaging concave mirror.By providing one or more imaging concave mirrors, both an improvement in the imaging effect or image quality (for example, through additional design options to correct any imaging errors) and a reduction in installation space by folding the beam path can be achieved. Thus, in addition to its imaging effect, the respective concave mirror can also be designed, for example, to deflect, magnify, and / or correct the light beam. Alternatively or additionally, the imaging optics can also include other imaging elements, such as lenses, for generating the real image, as well as other deflecting elements, such as plane mirrors, for folding the beam path.

[0026] The cover plate / cover layer can optionally additionally contribute to the shaping and / or directing of the light beam, for example, through a specific prism shape, and thus form part of a projection and / or imaging optics system. Thus, according to one embodiment, the cover plate can be prism-shaped to deflect the light beam upwards in order to vertically compress the installation space required for the display and thereby output the light beam directly toward the eyebox. In particular, the prism-shaped cover plate / cover layer can have an at least approximately triangular shape in a vertical longitudinal section, tapering downwards. This allows for even greater freedom in the design of the imaging optics.For example, the cover plate / cover layer can be designed as a prism, in particular a free-form prism, which follows the predetermined shape of the instrument panel or the interior lining of the vehicle and at the same time provides additional deflection of the light beam.

[0027] According to a further aspect, a method for operating a side-mirror replacement display presented herein is provided. The method comprises detecting the surroundings to the side and rear of the vehicle, which would be visible from the driver's perspective via a corresponding side mirror, and controlling the imager to generate display content based on this detection of the surroundings, so that the floating real image replaces the driver's view in this side mirror. A suitable sensor or camera system and / or a control unit, which are designed and configured to detect the surroundings to the side and rear of the vehicle and to control the imager to generate the required display content based on the currently detected surroundings, can, for example, be part of the display and / or be provided independently in the vehicle and communicate with the display wirelessly and / or wired.

[0028] According to a further aspect, a control unit is provided that is designed and configured to automatically execute this method and can, in particular (but not necessarily), be an integral component of the display. For this purpose, a corresponding computer program (software) can be loaded into a processor of the control unit, for example, and run during operation of the display.

[0029] According to a further aspect, the above vehicle is provided. It comprises a windshield delimited on the left and right by an A-pillar each, an instrument panel extending thereunder, a left front door, and a right front door. Furthermore, the vehicle comprises a left and / or a right side mirror replacement display of the type presented herein, each integrated into the vehicle such that its cover plate or layer forms a surface portion of a door panel, one of the A-pillars, or the instrument panel facing a driver, and the real image replaces the driver's view in a side mirror. The vehicle can further comprise at least one associated control unit of the above type.

[0030] According to one embodiment, the cover plate / cover layer is arranged in the instrument panel or the interior lining of the vehicle such that its user-facing surface is flush with adjacent surface sections of the instrument panel or the interior lining. In other words, in this embodiment, the user-facing surface of the cover plate / cover layer follows the surface shape of the

[0031] Instrument panel / interior trim or forms a continuous continuation of it. Compared to creating a recess in the surface of the instrument panel / interior trim, this can both increase user comfort and contribute to space savings.

[0032] The above aspects of the invention and their embodiments and specific configurations are explained in more detail below using examples shown in the accompanying drawings. The drawings are purely schematic illustrations of the basic design and functional principle, i.e., they are not to scale. Identical or functionally equivalent elements are provided with the same reference numerals in the individual figures. They show:

[0033] Figure 1 shows, in a vertical longitudinal section, the basic structure of a side mirror replacement display according to a first embodiment of the invention;

[0034] Figure 2 shows, in a vertical longitudinal section, the basic structure of a side mirror replacement display according to a second embodiment of the invention;

[0035] Figure 3 shows a section of a cockpit area of ​​a vehicle according to an embodiment of the invention from the perspective of a driver, with two examples of the possible position of the left side mirror replacement display and a floating real image generated thereby.

[0036] All of the various embodiments, alternatives, and specific design features of the side-mirror replacement display, the operating method, the control unit, and the vehicle according to the above aspects of the invention mentioned above in the description and in the subsequent claims can be implemented in the examples shown in Figures 1 to 3, in particular also alternatively or in addition to the features shown therein. Therefore, they will not all be repeated below. The same applies accordingly to the definitions and effects already given above with regard to individual features shown in Figures 1-3.

[0037] Fig. 1 shows a highly simplified schematic vertical longitudinal section of a side mirror replacement display 2 according to a first exemplary embodiment of the invention. The display 2 is designed for integration into a vehicle 1, the cockpit area of ​​which is shown in Fig. 3 with two exemplary possible positions for the display 2 from a driver's perspective.

[0038] In this example, vehicle 1 is a motor vehicle. Fig. 3 shows a section of it, showing a windshield 3, an instrument panel 4 extending below it, a steering wheel 8, a left A-pillar 9, and a driver's door 10. As already mentioned, the spatial orientation terms such as "top," "bottom," "left," "right," "horizontal," "vertical," etc., refer to the usual vehicle-fixed Cartesian coordinate system with mutually perpendicular longitudinal, transverse, and vertical directions of the vehicle 1.

[0039] In this example, the display 2 is integrated into the instrument panel 4, the A-pillar 9, or the driver's door 10. For example, one of the areas B1 or B2 outlined in Fig. 3 near a conventional left-hand side mirror (which is not present in vehicle 1) is suitable for arranging the display 2. The display 2 contains, as shown in Fig. 1, an image generator 5 designed to generate a light beam L with suitable display content, as well as a cover layer 6 designed to transmit the light beam L, which seals off the display 2 from the outside and mechanically protects it. The user-facing surface of the cover layer 6 forms a surface section 7 of the instrument panel 4 or the trim of the A-pillar 9 or the driver's door 10, which faces the driver, so that the cover layer 6 is arranged with its surface directly opposite the driver. The driver is shown in Fig.1 is indicated only by his eyes and a designated spatial area E (eyebox). The eyebox E is again sketched purely symbolically and is located in the area of ​​the corresponding front vehicle seat (not shown). The light beam L (projector light) is only schematically indicated in Fig. 1 by its peripheral rays leading to the driver's eyes.

[0040] The image generator 5 is designed purely by way of example as a flat screen, here specifically as a liquid crystal screen (LCD) with a liquid crystal layer 11 (LC panel) that can be controlled pixel by pixel and a backlight 12, so that the respectively desired display content can be dynamically generated in its display area (i.e. in the liquid crystal layer 11). The backlight 12 can, as indicated in Fig. 1, be designed in particular with associated collimation lenses for uniform, planar illumination of the liquid crystal layer 11. However, the image generator 5 can alternatively also be designed as a self-luminous flat screen or as a projector and, for example, contain a light-diffusing projection surface (not separately shown), onto which the respective display content is projected as a real image.Alternatively, the projector-based imager 5 can comprise a laser scanner or a light source with suitable illumination optics for generating a homogeneous, collimated illumination beam, as well as an image generation surface illuminated thereby (for example in the form of an LCOS (Liquid Crystal on Silicon) or DMD (Digital Micromirror Device, not shown separately), which can be controlled pixel by pixel to generate the respective display content. Furthermore, the display 2 comprises an imaging optics system arranged in the beam path of the projector light L between the imager 5 and the cover layer 6, which in this example comprises two microlens arrays MLA1 and MLA2 arranged consecutively in the beam path. These microlens arrays are designed to project the display content generated in the imager 5 onto a real image R floating freely in the air, which can be seen from the driver's eyebox E when looking towards the cover layer 6 between the eyebox E and the cover layer 6.

[0041] The last microlens array MLA2 in the beam path is designed either flat or as a freeform surface on its side facing the driver to enable application of the cover layer 6 with an optical function for transmission as mentioned above. A balance of the transmission of the cover layer 6 for the light in both directions and the resulting visibility of the driver and other occupants of the vehicle 1 is defined via an optical function, such as a transparent black print, a perforated film, a polarizer, or a uniformly or segmentally switchable LC (liquid crystal) layer. The aim of this balance is to prevent visibility into the component (the display 2) as completely as possible, while ensuring sufficient transparency for the emerging projection light L.The number of microlens arrays and their surface geometry can vary to enable different aperture angles of the light beam L and imaging properties for the floating real image R.

[0042] The side mirror replacement display 2 and its control are designed and configured such that the real image R floating in the air replaces a view in the left side mirror for the driver. For this purpose, a control unit 14 is provided in the display 2 or in the vehicle 1, which is configured to carry out the above method according to the second aspect of the invention. A similar arrangement is also possible on the right side of the vehicle 1 (not shown). The optical structure of the display 2 outlined in Fig. 1 enables a thin design with a total thickness d in the range of, for example, approximately 30 to 40 mm. This makes it possible, in particular, to integrate the display 2 in the left A-pillar 9 or in the interior lining of the driver's door 10 (cf. Fig. 3).

[0043] Fig. 2 also shows, in a highly simplified schematic vertical longitudinal section, a side mirror replacement display 2 according to a second exemplary embodiment of the invention. This example differs from that of Fig. 1 only in that, instead of the cover layer 6, a cover plate 6 (also called a cover glass) formed separately from the microlens array MLA2 is provided. Thus, the second microlens array MLA2 and the cover plate 6 can be designed independently of one another with regard to their geometric shapes and optical functionality. To avoid repetition, reference is made to the above description of Figs. 1 and 3.

[0044] List of reference symbols

[0045] vehicle

[0046] Side mirror replacement display, in short: display

[0047] windshield

[0048] instrument panel

[0049] Image provider

[0050] Cover plate or cover layer

[0051] Surface section facing a driver

[0052] Steering wheel left A-pillar

[0053] Driver's door or left front door

[0054] Liquid crystal layer

[0055] Backlighting

[0056] Control unit

[0057] Light beam, also called projector light, real image floating in the air

[0058] Eyebox suitable area in the vehicle for the arrangement of the display or the floating real image

[0059] Total thickness of the display

Claims

Claims 1 . A side mirror replacement display (2) for a vehicle (1), comprising: an image generator (5) designed and configured to generate a display content for replacing a side mirror of the vehicle (1) and a light beam (L) conveying this display content; a cover plate or layer (6) designed to transmit the light beam (L) and for arrangement in a surface section (7) of a door trim, A-pillar (9) or instrument panel (4) of the vehicle (1) facing a driver;and an imaging optics arranged in the beam path between the imager (5) and the cover plate or layer (6) and designed in such a way that the light beam (L) leaves the cover plate or layer (6) directly in the direction of an eyebox (E) predetermined for the driver's eyes and the display content is projected onto a real image (R) floating in the air between the eyebox (E) and the cover plate or layer (6), which is designed to replace a view into this side mirror for the driver.; 2. Side mirror replacement display (2) according to claim 1, wherein the imaging optics comprises a microlens array or an arrangement of two or more microlens arrays (MLA1, MLA2) arranged one after the other in the beam path.

3. Side mirror replacement display (2) according to claim 2, wherein the two or more microlens arrays (MLA1, MLA2) arranged consecutively in the beam path in Beam propagation direction are arranged and designed mirror-symmetrically to each other.

4. Side mirror replacement display (2) according to claim 2 or 3, wherein the cover layer (6) is arranged on a driver-side surface of the last microlens array (MLA2) in the beam path and is designed to largely prevent vehicle occupants from seeing into the interior of the side mirror replacement display (2); or the cover plate (6) is arranged separately from the microlens array or the arrangement of microlens arrays (MLA1, MLA2) and is designed to largely prevent vehicle occupants from seeing into the interior of the side mirror replacement display (2).

5. Side mirror replacement display (2) according to one of the preceding claims, wherein the cover plate or layer (6) is opaque to ambient light incident from outside due to a perforated film, particle addition, coloring, tinting, a polarization filter and / or a segmentally or uniformly switchable LC layer to such an extent that it substantially prevents vehicle occupants from seeing into the interior of the side mirror replacement display (2).

6. Side mirror replacement display (2) according to one of the preceding claims, wherein the imaging optics comprises at least one imaging concave mirror.

7. Side mirror replacement display (2) according to one of the preceding claims, wherein the cover plate or layer (6) is prism-shaped for deflecting the light beam (L) upwards in order to vertically compress the installation space required for the side mirror replacement display (2) and thereby output the light beam (L) directly in the direction of the eyebox (E); and the prism-shaped cover plate or layer (6) preferably has an at least approximately triangular shape tapering downwards in a vertical longitudinal section.

8. A method for operating a side mirror replacement display (2) according to one of the preceding claims, comprising the steps: detecting a lateral and rearward environment of the vehicle (1 ) that would be visible from the driver's perspective via a corresponding side mirror; and Controlling the image generator (5) to generate a display content based on this environmental detection, so that the real image (R) replaces the driver's view in this side mirror.

9. Control unit (14) which is designed and arranged to automatically carry out the method according to claim 8.

10. Vehicle (1) with mutually perpendicular longitudinal, transverse and vertical directions of a vehicle-fixed Cartesian coordinate system, in particular a motor vehicle, comprising: a windscreen (3) delimited on the left and right by an A-pillar each, an instrument panel (4) extending underneath, a left front door (10) and a right front door; a left and / or a right side mirror replacement display (2) according to one of the preceding claims, each integrated in the vehicle (1) such that its cover plate or layer (6) forms a surface section (7) of a door trim, one of the A-pillars (9) or the instrument panel (4) facing a driver, and the real image (R) replaces the driver's view in a side mirror; and at least one associated control unit (14) according to claim 9.

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