DE102019127170A1 - Means of locomotion and arrangement for informing a user of a means of locomotion - Google Patents

Abstract

The invention relates to an arrangement for informing a user of a means of transport (10) comprising a first head-up display (2) with folding mirror optics and a second head-up display (3) without folding mirror optics, the second head-up display (3) is designed to be transparent and is arranged in a beam path (5) between the folding mirror optics and an eye of the user (4).

Description

The present invention relates to a means of locomotion and an arrangement for informing a user. In particular, the present invention relates to a novel combination of display devices known as head-up displays.

In order to provide the users of means of transport with the required or desired information in a suitable manner, head-up displays (HUDs) are now known in the prior art, which reflect image content in the primary field of view or nearby field of view areas of the user of a means of transport. With classic head-up displays, the elements to be displayed are displayed using folding mirror optics up to seven meters or further ahead in order to enable the user who has focused his attention on the traffic situation to adapt quickly or to make an adaptation completely unnecessary. The field-of-view (FOV) of classic head-up displays is comparatively low and requires the presence of a so-called combiner (windshield or separate combiner). The combiner is set up as a semi-transparent layer to reflect the rays of the HUD projector, which are essentially perpendicular upward, in the direction of the user's eyes. Classic HUDs are suitable for contact-analog augmented reality displays if the FOV is sufficiently large and the virtual distance (VSD) is large. DE 10 2018 212 046 discloses head-up displays, which without folding optics a display z. B. for entertainment, mirror it directly into a combiner. A very large FOV is achieved over the entire windshield, while only small VSDs between about 90 and 140 cm are achieved.

In principle, both types of head-up displays are therefore suitable for displaying different information in means of locomotion. A sensible combination of the two technologies has not been shown in the prior art so far.

It is an object of the present invention to meet the aforementioned need.

In particular, according to the invention, both HUD types are combined in one means of locomotion. The directly mirrored display has a high level of transparency, so that the AR-HUD optics come to rest under the directly mirrored display. In other words, an arrangement for informing a user of a means of locomotion is proposed which has a first head-up display (HUD) with folding mirror optics and a second HUD without folding mirror optics. The second HUD is designed to be transparent and is arranged in a beam path between the folding mirror optics and an eye of the user. In other words, light exiting the folding mirror optics of the first HUD will have to pass through the second HUD or its light source / display before it hits the combiner / windshield, so that at least part of the display areas of both HUDs are also in the field of view of the Overlap the user. Naturally, the second head-up display gives the user a display area that is close to him (with a low VSD) and a display area of the first HUD with a larger VSD that is further away from him. This is only possible through the use of transparent display technologies for the second HUD and expands the display options and degrees of freedom for the presentation of information in means of transport, as will be disclosed in detail below.

The subclaims show preferred developments of the invention.

The user can be a guide of the means of locomotion. A combiner, which is assigned to the first head-up display and / or the second head-up display, can therefore be arranged in the windshield in particular in front of a driver's seat of the means of locomotion. As is generally known, the folding mirror optics can also be arranged in alignment with the driver. In this way, information relevant to the driver of the means of locomotion for perceiving the vehicle guidance can be displayed by means of the first HUD and supplementary information by means of the second HUD.

Both HUDs can use a common reflector / combiner, which can be arranged in a windshield of the means of transport. The reflector can in particular be semi-transparent or partially transparent in order to ensure an essentially undisturbed view of the traffic situation. The combiner can in particular be dimensioned significantly larger than the folding mirror optics of the first HUD would require from the point of view of a driver of the means of locomotion. In this way, the combiner can be set up to mirror the entire area that can be represented by the second head-up display in the direction of the user or all occupants of the means of locomotion.

The arrangement can have a focus sensor which is set up to determine a current focus of the user. The focus sensor can, for example, comprise a camera, with the aid of which a viewing direction of each eye can be determined. The is where the two eyes meet Focus and this can either be on the display level of the first HUD or on the display level of the second HUD. Depending on a position of the focus of the user, an intensity of a light emission of the first HUD can be increased or decreased compared to an intensity of a light emission of the second HUD. An increase in the light intensity of that display level on which the focus of the user is currently directed has the advantage that the user can grasp this information particularly well. An increase in the light intensity in the other display plane has the advantage that the user can perceive the viewing plane better peripherally, on which his focus is currently not directed.

Likewise, depending on a position of the user's focus, image content can be displayed on the first HUD or on the second HUD. An image content can be, for example, a take-over request or a similar message with a relevance to the latest news. If it is determined that the focus of the user is on the first HUD, the image content can also be displayed on the first HUD, especially for urgent warnings and information that should not necessarily be displayed at a certain distance from the user due to their context, in order to make an adaptation superfluous and to encourage the user to perceive the information displayed as directly as possible. The same applies in the event that the current focus of the user is on the second HUD. This applies in particular to the case that the focus of the user lies in that area which is also referred to as the primary field of view (FOV). In other words, this dependency of the two display devices on the position of the current focus applies in particular to the case that the focus lies in a direction in which information can be displayed both via the first and via the second head-up display.

The first head-up display can be set up to display contact-analog content for an augmented reality display. In other words, the image content of the head-up display can be located or anchored at a predefined position in the vicinity of the means of locomotion. In other words, a surrounding element can be highlighted or otherwise identified by displaying a picture element on the first head-up display independently of a movable position of the means of locomotion.

The second head-up display can in particular comprise organic light-emitting diodes, which are also referred to as organic LEDs. This lighting technology is very energy-efficient and is therefore also suitable for use in large-area display devices.

The arrangement can preferably be set up, depending on certain circumstances, to present a display content previously displayed on the first head-up display on the second head-up display or vice versa. Here, the presentation on the first head-up display can be ended as soon as the presentation on the second head-up display has started. In other words, the display content is moved. Alternatively, the display content can also be copied to the second head-up display, so that after the display content has been displayed on the second HUD, both HUDs reproduce the display content. In particular, the display can take place in the same field-of-view or at a position in the same direction as viewed by the user. The change in the display position can, for example, be based on a driving situation (in particular on the basis of a given change in the urgency of the display) and alternatively or additionally depending on an operating state (in particular the change from autonomous to manual guidance or the other way around, in the event of energy reserves becoming scarce / limited remaining range, etc. ) and alternatively or additionally based on a traffic situation of the means of transport. In particular, a cause linked to the content of the position to be displayed can lead to the other HUD being better suited for displaying the content or an additional display on the respective other HUD promoting the perception of the display content by the user.

Particularly impressive or aesthetically pleasing representations can be made in that both head-up displays are set up to display different, complementary components of an identical symbol. In other words, three-dimensional or three-dimensional symbols can be created by using different planes to represent the entire symbol, for which purpose the display planes of both head-up displays can be used. Directional information and object markings can be output according to the rear sight principle, with the user's eye being aligned with both marking elements in order to "aim" at the object to be marked using both markings.

According to a second aspect of the present invention, a means of locomotion is proposed which has an arrangement according to the above statements. The means of locomotion can be configured as a car, van, truck, motorcycle, aircraft and / or watercraft. The characteristics, combinations of characteristics and the resulting These resulting advantages obviously correspond to those which have been carried out in connection with the arrangement according to the invention, so that reference is made to the above statements to avoid repetition.

• die Figur eine perspektivische Darstellung eines Fahrerarbeitsplatzes eines erfindungsgemäßen Fortbewegungsmittels mit einem Ausführungsbeispiel einer erfindungsgemäßen Anordnung.

Further details, features and advantages of the invention emerge from the following description and the figure. It shows:

• the figure shows a perspective view of a driver's workplace of a means of locomotion according to the invention with an exemplary embodiment of an arrangement according to the invention.

The figure shows a driver's workplace of a car 10 in which an arrangement 1 , comprising a first head-up display 2 with folding mirror optics and a second head-up display 3 without folding mirror optics. In one beam path 5 between the folding mirror optics and one eye of the user 4th is part of the transparent display of the first HUD 3 arranged. In other words, these are the first HUD 2 and the second HUD 3 at least partly in the same FOV of the user 4th arranged. Both use a reflector / combiner 6th which in the windshield 7th of the means of transport 10 is arranged. The transparent second head-up display 3 has an essentially horizontally arranged screen with organic LEDs, the light of which is reflected in the combiner 6th reflects and from the user 4th can be viewed. For the user 4th the FOV manipulated by means of the folding mirror optics appears 13th of the first HUD 2 several meters in front of your own car 10 . A camera 9 in connection with an evaluation unit 11 determines the line of sight 5 ' of the user 4th pointing to a picture element 8b in FOV 13th is directed. Another picture element 8a is shown on the transparent display of the second HUD 3 shown at a position corresponding to the FOV 13th is superimposed from the user's point of view. Accordingly, the image components are superimposed 8a , 8b to a three-dimensional appearing symbol. While the first HUD 2 only a comparatively small FOV due to the expensive and space-consuming folding mirror optics 13th has, can in the overlapping area in connection with the horizontal, at least approximately along the entire width of the windshield 7th extending second HUD 3 a multiple of the display area of the first HUD 2 can be provided whereby either more information can be displayed in parallel or on different occasions in different positions.

List of reference symbols

1

arrangement

2

first HUD with folding mirror optics

3

second HUD without folding mirror optics

4th

user

5

Beam path

5 '

virtual beam path

6th

Combiner / reflector

7th

Windshield

8a

Image element on second HUD

8b

Image element on first HUD

9

camera

10

Car

11

Evaluation unit

12th

FOV second HUD

13th

FOV first HUD

QUOTES INCLUDED IN THE DESCRIPTION

This list of the documents listed by the applicant was generated automatically and is included solely for the better information of the reader. The list is not part of the German patent or utility model application. The DPMA assumes no liability for any errors or omissions.

Patent literature cited

• DE 102018212046 [0002]

Claims (11)

An arrangement for informing a user (4) of a means of locomotion (10) comprising • a first head-up display (2) with folding mirror optics and • a second head-up display (3) without folding mirror optics, the second head-up display (3) - is designed to be transparent and - Is arranged in a beam path (5) between the folding mirror optics and an eye of the user (4). Arrangement according to Claim 1 wherein the user (4) is a guide of the means of locomotion (10). Arrangement according to Claim 1 or 2 , wherein both head-up displays (2,3) use a common reflector (6) which is preferably arranged in a windshield (7) of the means of locomotion (10). Arrangement according to one of the preceding claims, further comprising a focus sensor (9) which is set up to determine a current focus of the user (4). Arrangement according to Claim 4 which is set up to increase or increase an intensity of a light emission of the first head-up display (2) compared to an intensity of a light emission of the second head-up display (3) as a function of a position of the focus of the user (4) reduce. Arrangement according to Claim 4 or 5 which is set up to display image content (8a, 8b) on the first head-up display (2) or on the second head-up display (3) as a function of a position of focus of the user (4) . Arrangement according to one of the preceding claims, wherein the first head-up display (2) is set up to display contact-analog content for an augmented reality display. Arrangement according to one of the preceding claims, wherein the second head-up display (3) comprises organic light-emitting light-emitting diodes. Arrangement according to one of the preceding claims, wherein the arrangement is set up as a function - a driving situation and / or - an operating state and / or - To show a traffic situation of the means of locomotion (10) a display content (8) previously displayed on the first head-up display (2) on the second head-up display (3). Arrangement according to one of the preceding claims, wherein both head-up displays (2, 3) are set up to display different, complementary components of an identical symbol. Means of locomotion comprising an arrangement (1) according to one of the preceding claims.

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