WO2019214895A1

WO2019214895A1 - Motor vehicle with a self-luminous screen, and associated operating method

Info

Publication number: WO2019214895A1
Application number: PCT/EP2019/059226
Authority: WO
Inventors: Andrej Zachar; Jacques Hélot
Original assignee: Audi Ag
Priority date: 2018-05-07
Filing date: 2019-04-11
Publication date: 2019-11-14
Also published as: DE102018207078A1; DE102018207078B4

Abstract

The invention relates to a motor vehicle (10), in which a self-luminous screen (16) for displaying a display content (21) is configured to emit light (37) representing the display content (21) and in which a reflecting surface region (19) arranged at a distance from the screen (16) is provided, a reflection (20) of the display content (21) being visible on said surface region (19) from a predetermined observation point (17). The invention provides for a screen panel (23), emitting the light (37), of the screen (16) to have a selective shielding unit (30) which passes the light (37) emitted by the screen (16) along a preferred direction (39) and blocks said light along a blocking direction (40) and/or deflects said light from the blocking direction (40), wherein the preferred direction (39) is aligned on the surface region (19) and the blocking direction (40) is aligned from the observation point (17).

Description

Motor vehicle with self-illuminating screen and associated operating

method

DESCRIPTION:

The invention relates to a motor vehicle in which a self-illuminating screen for displaying a display content is provided. However, this display content should not be viewed directly on the screen, but indirectly via a reflective surface, as is known from a head-up display (head-up display). The invention also relates to a method for displaying a display content to a user with the self-illuminating screen.

The prior art discloses indirectly displaying a display content over a reflective surface associated with said head-up display. Such a head-up display is known for example from DE 38 22 222 A1. Such a head-up display has a self-luminous screen whose light is emitted for displaying the display content on the windscreen of the motor vehicle, where the reflection can then be seen by a user. As a result, the display content superimposed on the visible through the front screen through ren light from the environment Instead of the windscreen can be used an addi tional, free-standing disc, the Combinerscheibe (Kom binierscheibe) is called

Prior art head-up displays require that the self-illuminating screen be placed in a trench or funnel so that the viewer can not see the screen itself or the cover and mirror of the head-up display , In addition to that To avoid the occurrence of stray light from the trench, the trench can be additionally closed with a manhole cover, which may have a blind. The prior art thus has the disadvantage that technically complex and space-consuming measures, namely a ditch and a blind, are necessary to hide the self-illuminating screen of a head-up display in front of the user's eye, so this is not disturbed by direct light from the screen.

It is known from DE 10 2013 000 366 A1 that the reflection effect on a transparent combiner disk can be increased by integrating into the disk an electrically switchable layer which can be alternately switched to transparent and opaque in dependence on an electrical signal ,

It is known from DE 10 2010 055 144 A1 that it is likewise possible to provide such an electrically switchable layer on a screen surface in order to cover parts of the screen as required. As a result, the light emitting surface area of the screen can be varied or adjusted in size. But to avoid that the light of the screen comes directly to the user's eye, the entire screen would have to be darkened or covered in this way. Then the screen could not be used for a head-up display.

The invention has for its object to keep the space required low in a motor vehicle at a display device, which represents their display content indirectly via a reflection as in a head-up display.

The object is achieved by the subject matters of the independent patent claims. Advantageous embodiments of the invention are described by the dependent claims, the following description and the figures. The invention provides a motor vehicle in which a self-illuminating screen is provided for displaying a display content. For example, a video image and / or at least one pixel-based graphic element (for example at least one pictogram) can be displayed as the display content. For example, an LCD (Liquid Crystal Display) or an OLED screen (OLED - Organic Light Emitting Diode) can be provided as the screen. The screen is adapted to emit a light representing the display content. The light of the screen should be able to be viewed from a predetermined viewing point, but not directly by the user, ie, the display content should not be viewed directly on the screen from the viewpoint, but in the motor vehicle, one is spaced from the screen Reflective surface area is provided, on which a reflection of the display content is visible from the predetermined viewing point. The user thus regards the display content as a reflection on the surface area. The surface area may, for example, be arranged at a distance of more than 0.5 centimeters from the screen. As a reflective surface area, for example, the said Combinerscheibe or a window pane of the motor vehicle may be provided. As a point of view, for example, a head position can be provided on a headrest of a vehicle seat. So if a user holds his head on the headrest in the head position, so he can see the reflection of the display content in the surface area from there. As a point of view, a reference point in the interior of the motor vehicle can generally be used above a seat surface of a vehicle seat, but within the lateral limits of the vehicle seat. For example, the viewpoint is in a columnar volume defined at the bottom by a seat surface of a vehicle seat and at the top by a ceiling of the interior space. However, it can also be a volume of space that adjoins a headrest of a predetermined vehicle seat.

In order to avoid now that the user sees the display content directly on the screen from the predetermined viewing point, which could disturb him, because the display content is displayed, for example, mirrored, is provided by the invention the following. A display screen of the screen that eliminates light has a selective shielding unit. The light thus passes when penetrating the screen disk whose shielding unit Such a shielding unit may be glued, for example, as a film or layer or integrated into the screen, for example in the case of a laminated screen. The shielding unit transmits the light emitted by the screen along a preferred direction. Along a reverse direction, it blocks the light and / or deflects the light out of the reverse direction so that it does not emerge from the screen with reduced radiation intensity along the reverse direction. Thus, when the light leaves the screen, a radiation intensity of the light in the reverse direction is reduced in comparison with the case that the shield unit is not present. By contrast, the light passes unhindered along the preferred direction (or reduced by the shielding unit, for example, by a maximum of 20 percent) from the image screen to the preferred direction. The preferred direction is aligned with the surface region on which the reflection is to be generated in the manner described. The reverse direction is aligned with the viewpoint. Thus, no light or only a reduced portion of the light passes directly from the screen into the reverse direction to the viewing point. In the reverse direction, the reduction in the luminous intensity caused by the shielding unit is at least 70 percent, preferably at least 80 percent. The residual light is no longer recognizable as such due to ambient brightness from the user because the contrast is too low.

The advantage of the invention is that the screen itself is already set up by the shielding unit of the screen disk to selectively emit the light representing the display content in the preferred direction and to keep it away from the reverse direction. By the screen in the motor vehicle is oriented so that the preferred direction to reflectie-generating surface area and the reverse direction towards the point point, a user can thus see the reflection of the light and thus the display content in the surface area, but there is no light directly from the screen to the viewer's eye in the point of view. Thus, the user can not directly see the display content on the screen. It is therefore not necessary to sink the screen in a ditch or shaft. This reduces the space requirement.

The invention also includes embodiments that provide additional benefits.

One embodiment provides that the screen is arranged in a direct line of sight emanating from the viewing point. In other words, the screen is not sunk in a pit or trench. Additional Lich or alternatively, it is provided that the screen is flush with a visible from the viewpoint of the interior surface of a Innenver clothing part of the motor vehicle. The screen is thus adapted in front of geous manner with respect to the surface structure as part of the interior surface. Favor the screen also has a spatial curvature, which coincides with a curvature of the adjacent Interi eursoberfläche. The appearance of Innenverklei tion part can thus be designed in an advantageous manner continuously, that is without sinking or survey, in the region of the screen edge. As a result, the integration of the screen in the Innenverklei training part visually inconspicuous or not disturbing. In addition, there is no recess in which e.g. Dirt or an object could fall.

An embodiment provides that the shielding unit has lamellae or honeycombs. Slats can align the light of the screen in a room level in the preferred direction. On the other hand, honeycombs work all around, which means that they can align the light in two preferred spatial directions in the preferred direction. A height of the fins or honeycomb may be greater than 0.5 millimeters.

The shielding unit may additionally or alternatively comprise a foil or disc, each provided with micro-fins. Such microloils may have a spacing and / or a width and / or a thickness less than 1 millimeter. The microlays may be realized as a microstructure in the film and / or disk and / or on the film and / or on the disk. Such a film or disc is also referred to as Jalou siefolie or lamella privacy film or privacy filter or privacy film when it is used as a side view protector for a screen.

The shielding unit may additionally or alternatively have prisms. For example, prisms may be configured as microprisms and the lamellae may be aligned parallel to one another. Microprisms may have a spacing and / or a width and / or a thickness less than 1 millimeter. Prisms have the advantage over lamellae that they block the light from the screen from the reverse direction and not just block. Thus, the light output can be greater than with opaque slats.

One embodiment provides that the surface area is provided by a window pane or a transparent, free-standing combiner disc. A window pane is an at least partially and / or temporarily transparent pane which separates the interior of the motor vehicle from the surroundings. A transparent, standing in the room Combinerscheibe can protrude without framing in the interior of the motor driving stuff. Thus, the reflection at the reflective Oberflä chenbereich can be generated at a position independent of windows in the interior space of the motor vehicle. Providing the surface area on a window pane or a combiner pane affords the advantage that through the window pane or combiner pane, the user can also view at least one further object from the viewing point, to which the display content can then be optically superimposed. Instead of a window or a combiner disc can be provided as a reflective surface area, a smooth, opaque surface (for example, an interior trim part of the motor vehicle). For example, a painted wooden surface or a smooth surface of a plastic part may reflect the reflective surface. deploy area. It can also be provided that the reflective surface area is prepared by an instrument cluster of the motor vehicle.

One embodiment provides that an electrically adjustable transparency or opacity is provided in the surface region by means of an electrically switchable layer. Such a switchable layer may, for example, be realized on the basis of PDLC (Polymer Dispersed Liquid Crystal). If the surface area is set to be transparent, at least one further object can be viewed in the manner described from the viewing point through the transparent surface area. The surface area is then transparent. If, on the other hand, the surface area is set to be opaque, a contrast ratio when viewing the display content is greater than in the transparent state of the surface area.

An embodiment provides that the screen is provided on an instrument panel. As a reflective surface area then a windscreen of the motor vehicle can be used. This results in a space-saving variant of a head-up display.

An embodiment provides that the screen is arranged in a support column of a vehicle roof of the motor vehicle. The support pillars of the vehicle roof are the A-pillars, the B-pillars and the C-pillars. By integrating the screen in such a support column, there is the advantage that a side window or side window or the window pane of a vehicle door of the motor vehicle can be used as a reflective Oberflä chenbereich. Also, a window pane in the rear of the motor vehicle can be used when arranging the screen in the C-pillar as reflek animal surface area. Thus, the user can be superimposed on the display contents when viewing from a side window or a rear window from the viewing point. An embodiment provides that the screen in a door frame or arranged in a door sill. Also, this can be used as Oberflä chenbereich a window of a vehicle door.

One embodiment provides that the screen in a vehicle roof is arranged above a combiner disc projecting freely into an interior of the motor vehicle. The Combinerscheibe can thus be placed at eye level or frontal height of the user and with the combiner disc, the display content can be displayed in the field of view of the user. As a result, for example, a digital or camera-based rearview mirror can be realized.

In particular, it is provided according to an embodiment that the screen is arranged in a B-pillar and the screen is aligned in the forward direction. This results in the reflection in a window pane of the driver's door or the passenger door (depending on which B-pillar is provided). The driver can thus be assisted with a view of the shoulder by the display content is displayed as a reflection in the window of the driver's door or passenger door.

One embodiment provides for this purpose that a control device is adapted to display as the display content at least one camera image of at least one rearward in the motor vehicle, that is opposite to the forward direction, aligned camera. The optical axis of the Kame ra thus has an angle with respect to the forward direction, which is greater than 90 degrees, in particular greater than 120 degrees. The display content is thus a view of the rear area behind the motor vehicle or diagonally behind the motor vehicle. This display content can then be displayed in example on the described, freely projecting into the interior of the motor vehicle Combinerscheibe. This results in the described digital or camera-based rearview mirror. In addition or as an alternative to the camera image of the camera, a warning signal of a blind spot monitoring can be displayed as a display content. In particular, in the event that the screen is arranged as described in a B-pillar of the motor vehicle and aligned forward in the forward direction, can thus a so-called shoulder view of the driver are supported. The warning can also be shown mirrored in an area on the A-pillar, with this screen integrated in the A-pillar.

One embodiment provides that an inclination of the screen with respect to the surface area has a value by which a viewing angle, which the reflection assumes from the viewing point, is maximized. It is thus seen from the viewpoint minimizes the perspective shortening, under which the display content of the screen is seen as a reflection in the surface area. This has the advantage that the reflection has the maximum size or area.

One embodiment provides that the surface area is curved and as a result the reflection appears to be larger from a viewing point than a flat surface area. Thus, the reflection can be further increased by using a curved surface area. This has the advantage that the reflection may appear to be larger than the size of the screen itself. A distorted representation resulting herefrom can be avoided by displaying the display content in a predelimated manner when displayed on the screen, so that these advantages Distortion and the distortion caused by the curved surface area compensate each other.

By the operation of the motor vehicle according to the invention results in a method which is also part of the invention. In the method, a self-illuminating screen for displaying a display content emits a light representing the display content, and a reflective surface area spaced from the screen provides reflection of the display content visible from a predetermined viewpoint. A screen of the screen emitting the light has a selective shielding unit, which transmits the light on the one hand along a preferred direction and on the other hand along a reverse direction blocked and / or deflected from the reverse direction, wherein the preferred direction is aligned with the surface area and the locking direction on the viewing point. The invention also includes developments of the method according to the invention, which have features as they have already been described in connection with the developments of the motor vehicle according to the invention. For this reason, the corresponding developments of the method according to the invention are not described again here

The invention also encompasses the combinations of the features of the described embodiments. In particular, more than one screen of the type described can also be provided in the motor vehicle. In the following, embodiments of the invention are described. This shows:

1 shows a schematic representation of an embodiment of the motor vehicle according to the invention with a screen in an instrument panel in a perspective view;

FIG. 2 shows a schematic illustration of a longitudinal section of the instrument panel of FIG. 1, which is in the vehicle longitudinal direction; 3 is a schematic representation of an exploded view of the

screen;

4 shows a schematic illustration of a cross section of another screen, as it may be provided in the motor vehicle;

Figure 5 is a schematic representation of a perspective view of another screen, as it may be provided in the motor vehicle in an A-pillar; Figure 6 is a schematic representation of a perspective view of a screen, as may be provided in the motor vehicle in a B-pillar.

Figure 7 is a schematic representation of a perspective view of two screens, as may be provided in the motor vehicle on a door sill of a vehicle door;

8 is a schematic representation of a cross section of one of

Screens of Fig. 7;

FIG. 9 shows a schematic representation of a longitudinal section of a screen, as may be provided in a vehicle roof of the motor vehicle; FIG.

10 is a schematic representation of a test setup

View of a viewpoint; and FIG. 11 shows a schematic representation of the experimental setup as seen from a different point of view from the viewing point.

The exemplary embodiments explained below are preferred embodiments of the invention. In the Ausführungsbeispie len the described components of the embodiments each represent individual, independently of each other to be considered features of the invention, which each further independently develop the invention and thus individually or in any other than the combination shown to be considered part of the invention. Furthermore, the be described embodiments can also be supplemented by further of the already described NEN features of the invention. In the figures, like reference numerals designate functionally identical elements

1 shows a motor vehicle 10, which may be a motor vehicle, in particular a passenger car or lorry. Of the motor vehicle 10, an interior 11 is shown, as he could look, for example, a driver from the perspective of a driver's seat 12 Dargestelit are a frontal window 13, a steering wheel 14 and an instrument panel 15. In the instrument panel 15, a screen 18 may be arranged. The window pane 13 can be arranged obliquely above the screen 18 inclined. From a predetermined viewing point 17, which may be provided in front of a headrest 18 of the driver's seat 12, a user can see a reflection 20 of a display content 21 of the image screen 18 in a reflective surface area 19 of the window pane 13. The arrangement of the screen 16 and window pane 13 can thus be realized a head-up display. In this case, however, it is not necessary to lower the screen 18 in a trench or shaft in the instrument panel 15. The screen 18 may be a direct line of sight 22 from the viewing point 17. In other words, it is possible to directly see the screen 16 from the viewpoint 17, yet a user can not directly see the display content 21 from the viewpoint 17 on a display screen 23 emitting the light of the screen. Only the reflection 20 shows the display content 21 from the viewpoint 17. The screen 16, that is to say in particular the display screen 23, can therefore be flush, for example, with an interior surface 24 provided by the instrument panel 15. This results in a closed interior surface 24 so that no object can fall into a pit or trench of the instrument panel 15. In this case, the instrument panel 15 generally represents an interior trim part 25. Thus, no space is lost because no shaft is necessary

FIG. 2 illustrates how, for example, in the instrument panel 15, the screen 18 may be configured to display the display content 21 as a reflection 20 visible on the surface area 19 from the viewing point 17, while on the direct line of sight 22, the display content 21 on the screen 23 remains invisible or not visible

For this purpose, FIG. 2 shows a longitudinal section through the instrument panel 15. At the viewing point 17, an eye 26 of a user is represented symbolically. For further illustration, a vehicle roof 27 and a line of sight 28 towards the reflection 20 are shown. From the viewing point 17, the user can see the reflection 20 with the eye 26 on the line of sight 28 on the surface area 19 of the window pane 13. The reflection 20 is shown behind the window pane 13 in FIG. 2, viewed from the viewing point 17, in order to represent this spatial impression which the user has from the viewing point 17. On the visual line 22, the display content is not visible from the viewing point 17. The visibility and the non-visibility are symbolized in Fig. 2 by an eye or a crossed-out eye. A distance A of the screen 16 from the reflective surface area 19 may be greater than 0.5 centimeters, in particular greater than 1 centimeter. The distance A can be as large as the interior allows

FIG. 3 shows how screen screen 23 can be configured by screen 16 so that the visual relationships illustrated in FIG. 2 are made possible. The screen 23 may be realized from a transparent plate 29 and arranged on the transparent disc 29 from screen unit 30. A magnification 31 shows a microstructure, which may comprise the shielding unit 30. The shielding unit 30 may be configured, for example, as a film or disk. The microstructure 32 may, for example, have fins 33 whose spacing 34 and / or width 35 and / or thickness 36 may be less than 1 millimeter, in particular less than 100 micrometers. Through the micro-blades can Durchlasswin angle for light 37, which is generated in the screen 16 and which gegage 21 the display 21, are reduced to a beam angle 38, which may be ner than 60 degrees, in particular less than 50 degrees. A main radiation direction or preferential direction 39 can be applied to the surface rich 19 be aligned. In contrast, outside the Abstrahlwin angle 38 at least one reverse direction 40, which may be aligned with the viewing point 17. In the blocking direction 40 or along the blocking direction 40, the screen 16 emits no light or only light with a luminous intensity which is less than 70 percent, in particular less than 80 percent of the luminous intensity along the preferred direction, from the display screen 23 due to the shielding unit 30 39 is.

Thus, from the viewing point 17 from the light, which directly from the screen 16 along the line of sight 22, that is so along the reverse direction 40 meets the eye 26, imperceptible by the user.

As illustrated in FIG. 1, the screen 16 can be provided in a known manner for displaying a head-up display in an instrument panel, but in this case advantageously a trench or shaft for the screen 16 can be dispensed with.

Because of this flat design but is now a screen as the image screen 16 at other locations in the vehicle available and thus also in other reflective surface areas a reflection 20 realized

4 shows a plan view of a section through a support column 41, which may be, for example, an A-pillar of the motor vehicle 10. Shown is a window pane 13, which may be a window sash be a vehicle door of the motor vehicle 10, such as a driver's door or passenger door In the support column 41, the screen 16 may be arranged. Through the window pane 13, a reflective upper surface area 19 may be provided. When looking from a viewing point 17 in the interior 11 of the motor vehicle 10, a user can see the reflection 20 of a display content 21 in the surface region 19 of the window pane 13, which is emitted by the display screen 23 as light. On the direct line of sight 22 to the screen 16, however, one can not directly see the display content 21 from the viewing point 17. because in turn the blocking direction 40 is aligned with the viewing point 17. Thus, only the reflection 20 in the surface area 19 can be recognized by the display content 21. Also in FIG. 4 it is again illustrated that due to the distance of the screen 16 from the window pane 13 for the observer, the reflection 20 seems to float freely in the space behind the window pane 13 when viewed from the viewing point 17

FIG. 5 illustrates how the principle illustrated in FIG. 4 can be used to realize a virtual side mirror. Shown in Figure 5 is a vehicle door 42, which may be a driver's door or a passenger's door. In a support column 41, for example, the A-pillar, a screen 16 may be integrated, which is arranged with respect to a window 13 of the vehicle door 42 such that from a viewing point 17, for example, a viewpoint on a headrest of a driver's seat, in a reflective surface area 19 of the window pane 13, a reflection 20 of a light emanating from the screen 16 with a display content 21 can be seen. On the direct line of sight 22 from the viewpoint 17 to the screen 16, on the other hand, due to the orientation of the blocking direction 40 in the direction of the viewing point 17, the display content 21 is not visible. The preferred direction 39 may be aligned with the reflective surface area 19.

Preferably, a surface normal N of the screen is aligned to the reflecting surface 19 out. In other words, the image screen is inclined to the reflecting surface 19. This results in the advantage that the preferred direction 39 includes a smaller angle with the surface normal than the reverse direction. As a result, the radiation intensity of the light along the preferred direction increases who the. In addition, an angle difference between the preferred direction and the reverse direction is increased

FIG. 6 illustrates how a shoulder view of a driver can also be assisted, for example, during an overtaking process. Shown is a vehicle door 42, which is a driver's door or a co-driver's door. door can act. The example is shown from the point of view of a viewing point 17, which may be, for example, the driver's head position, that is to say the viewing point 17 can be arranged on a headrest of a driver's seat. Also shown is a support column 41, which may be the B-pillar of the motor vehicle 10. The perspective is thus shown rearward to a rear portion 43 of the motor vehicle. In the support column 41, a screen 16 may be arranged, which can have the shielding in the manner described. From the point of view 17 is thus on direct line of sight 22 due to the orientation of the locking direction 40 for observation point 17 toward a display content 21 on the screen 16 not to see hen results in a window 13, a mirror image or a reflection 20 of the display content 21, because a reflective surface area 19 can be provided by the window pane 13. The pre zugsrichtung 39 may be aligned with the surface area 19 out.

The window pane 13 may have a spatial curvature K, by which it can be achieved that the mirror image or the reflection 20 on the reflective surface area 19 is greater than a surface of the screen 23 of the screen 16. In other words, by a surface region 19 with a spatial distortion K is a distortion tion or enlargement of the display content 21 compared to the representation on the screen 23 are provided.

A control device 44 can display, for example, camera images of a camera 45 oriented in the rear area 43 and / or a signal of blind spot monitoring 46 as display content 21. The Benut zer is thus superimposed on the view from the viewing point 17 through the window pane 13 toward the rear region 43 through the reflection 20 of the display content 21. For example, as a display content 21 from the viewing point 17 from behind the support column 41 disposed object 47 may be detected by the camera 45 and a display 48 of the object 47 as display content 21 via the reflection 20 to the viewer who displayed the. 7 illustrates how a screen or two screens 16 can be arranged in a door sill 49 in the case of a vehicle door 42 so that a reflection 20 per screen 16 can be provided in a window pane 13 of the vehicle door 42

FIG. 8 shows a cross section through the vehicle door 42 of FIG. 7, as a screen 16 may have a slope 50 with respect to the reflective surface area 19 as may be provided by the window glass 13. The inclination 50 may be set such that from a predetermined viewing point 17, which may be arranged, for example, on a headrest 18 of a vehicle seat 12, a viewing angle 51, below which the reflection 20 of the display content 21 of the screen 16 is displayed from the viewing point 17 is or is visible, is maximized. A trench or shaft 52 which is necessary as a result can be covered by a transparent pane 53, for example a glass pane or a pane of plastic.

The window pane 13 may additionally or alternatively have a curvature K in order to effect the described enlargement effect.

9 illustrates how a rearview mirror for an interior 11 of the motor vehicle 10 can be realized. Shown is as a screen

16 may be arranged on a vehicle roof 27 of the motor vehicle 10. In the inner space 11, a free-standing in the room Combinerscheibe 54 may be provided, through which from a viewing point

17 from the frontal window pane 13, the environment 55 of the motor vehicle can be considered. The combiner disk 54 may provide a reflective surface area 19 on which a reflection 20 of the display content 21 may be visible from the viewing point 17. The viewing point 17 may be provided in the manner described on a headrest 18 of a vehicle seat 12. A control device 44 may include camera images of a camera 45 whose detection area is extended into a rear area 43 behind the motor vehicle 10. is directed to represent as display content 21 on the screen 16. Thus, by the combiner disc 54 into the field of vision of a user, the reflection 20 can be superimposed, showing the rear area 43, however, along the direct line of sight 22 from the screen 16 to the viewing point 17 by the alignment of the locking direction 40 no light. radiates so that the screen 16 itself looks dark from the viewpoint 17.

FIG. 10 and FIG. 11 again illustrate the mode of operation of the shielding unit 30 used in this case

FIG. 10 shows, from the perspective of a viewing point 17, a screen unit 30 of a display screen 23 of a screen 16 and a reflective surface area 19, which can be realized, for example, by a window pane 13. Shown in dashed lines is a reflection 20 of a display content which is represented by the screen 16 and is emitted as light through the shielding unit 30 of the display screen 23 in the direction of the reflective surface area 19. By contrast, in direct connection from the screen 16 to the viewing point no light is emitted, which is why the display screen 23 appears black, which is symbolized here by a hatching

FIG. 11 illustrates the screen 16 from a different perspective, which is different from the perspective of the viewpoint 17. To know he is that the display content 21 from the perspective shown on the screen 16 is directly visible, that is, the light of the screen 16 can pass through the screen 23 and the shielding unit 30 through directly to the eye of the beholder.

The idea is therefore to display images or a display content that must be mirrored in a pane or generally on a reflective surface area through a shielding unit, such as a lamellar foil or shutter foil, so that the display contents are not on the direct line of sight 22 on the Screen disc 23 visible The original image, that is the display content on the screen itself, is not visible, but its reflection in the windshield or generally a window 13 or a reflective surface area 19 already.

To accomplish this in the art, a funnel or trench or well must be provided in which the screen 16 can be recessed so that the screen 16 is removed from the direct line of sight 22. But such a ditch takes up a lot of space and it can get dirt and / or an object caught in the trench. In addition, such a trench can be perceived as visually disturbing.

A flat screen, on the other hand, can follow or even describe the surface shape of an interior trim part or interior trim part, such as an instrument panel, by rotating the screen to adjust or even maximize the amount of reflection for a given viewpoint.

The advantage of using a screen with shielding unit is that the original image or the display content is not visible on the screen, and yet there is no need for a trench or slot for submerging the screen. It is thus saved space and it can not fall objects or dirt in the ditch or shaft. By designing the three-dimensional shape of the display screen, an interior trim part can also be embossed in the mold or the screen can be adapted in shape to the interior trim part, for example to a shape of the surrounding interior surface. Such a screen may be arranged in a door, a vehicle roof or an instrument panel or dash panel.

Overall, the examples show how a mirror image can be generated in a pane by the invention without the primary display (self-luminous screen) being directly visible.

Claims

CLAIMS:

1 motor vehicle (10), in which a self-illuminating screen (16) for displaying a display content (21) is adapted to emit a light (37) representing the display content (21), and wherein one of the screen (16) spaced-apart reflective surface area (19) is provided, on which from a predetermined viewing point (17) from a reflection (20) of the display content (21) is visible,

characterized in that

a screen (23) of the screen (16) radiating the light (37) has a selective shielding unit (30) which transmits the light (37) emitted by the screen (16) along a preferential direction (39) and along a blocking direction (40 ) and / or from the locking direction (40) deflects, wherein the preferred direction (39) on the surface region (19) and the locking direction (40) on the observer point (17) is aligned

2 motor vehicle (10) according to claim 1, wherein the screen (16) in a direct, from the viewing point (17) outgoing line of sight (22) is arranged and / or wherein the screen (16) flush with a reference point from Be (17) from visible interior surface (24) of a nenverkleidungsteils (25) of the motor vehicle (10) terminates

3 motor vehicle (10) according to any one of the preceding claims, wherein the shielding unit (30) has lamellae (33) or honeycombs and / or prisms and / or a foil or disc, which is provided with micro-blades (33)

4 motor vehicle (10) according to any one of the preceding claims, wherein the surface region (19) through a window pane (13) or a transparent, standing in space Combinerscheibe (54) is provided.

5. Motor vehicle (10) according to one of the preceding claims, wherein in the surface region (19) by means of an electrically switchable layer, an electrically adjustable transparency or opacity is provided

8 motor vehicle (10) according to any one of the preceding claims, wherein the screen (16) on an instrument panel (15) or in a support column (41) of a vehicle roof (27) of the motor vehicle (10) or in a door frame or in a door sill (49) or in a vehicle roof (27) over a freely in an interior (11) of the motor vehicle (10) projecting Combinerscheibe (54) is arranged

7. Motor vehicle (10) according to one of the preceding claims, wherein a control device (44) is arranged as the display content (21) at least one camera image of at least one in the motor vehicle (10) rearward (43) aligned camera (45) and / or to display a warning signal of blind spot monitoring (46)

8. Motor vehicle (10) according to one of the preceding claims, wherein an inclination (50) of the screen (16) with respect to the surface area (19) has a value through which a viewing angle (51), which the reflection (20) from the viewpoint (17), is maximized

9 motor vehicle (10) according to any one of the preceding claims, wherein the surface region (19) curved (K) is configured and thereby the reflection (30) from the viewing point (17) from looking larger than a flat surface area

10 method in which a self-illuminating screen (16) for displaying a display content (21) emits a light (37) representing the display content (21), and wherein a reflective surface area (19) spaced from the screen (16) providing visible reflection (20) of the display content (21) from a predetermined viewing point (17), characterized in that

a display screen (23) of the screen (16) emitting the light (37) has a selective shielding unit (30) which transmits the light (37) along a preferential direction (39) on the one hand and blocks and / or along a blocking direction (40) on the other hand deflects from the locking direction (40), wherein the preferred direction (39) on the surface area (19) and the locking direction (40) on the viewing point (17) is aligned.