Display system for a vehicle and method for optically highlighting different operating states in the vehicle

Description

[0001] The present invention relates to a display system for a vehicle for displaying various operating and driving parameters of the vehicle on different display means. The invention further relates to a vehicle having such a display system and a method for visually highlighting different operating states in such a display system. Furthermore, the invention relates to a computer program product for implementing such a method and a storage means on which such a computer program product is stored.

[0002] Modern vehicle cockpits offer a wide range of display and control options. Head-up displays are increasingly being installed alongside instrument clusters, which are positioned directly in the driver's line of sight. The installation of head-up displays offers advantages in terms of ergonomics and driving safety. For example, head-up displays allow the perception of critical information from the driving scene without averting one's gaze and with minimal accommodation. Instrument clusters, on the other hand, offer advantages when displaying complex content such as 3D maps or media. Furthermore, head-up displays alone cannot guarantee the permanent visibility of legally relevant information, as contrast values ​​depend on the relative ambient brightness and other factors such as the wearing of polarized sunglasses.Due to the characteristic advantages of both display devices, the requirement and customer need arise to display and operate the appropriate functions on both displays. Since the display devices do not form a continuous surface, switching between the display devices is required, i.e., switching between a first operating state for operating a first display device and a second operating state for operating a second display device. Various approaches to this are known in the prior art.

[0003] In some vehicles, it is possible to switch between the possible operating states in the menu of a central display and control unit, which is usually located in the area of ​​the vehicle's center console. However, such a solution is cumbersome for the driver and unsuitable for use while driving. Furthermore, solutions are known in which switching between the different operating states can be carried out via a control unit on the vehicle's steering wheel. For example, German patent application DE 10 2019 119 135 A1 describes a system for using a steering wheel rocker switch to switch between operating targets, such as an instrument cluster and a head-up display. Furthermore, it is described that the assignment of a control element to a respective operating target or display means can be made clear by outputting a corresponding optical, acoustic and / or haptic signal in the vehicle.The visual indication can be implemented, in particular, by outputting a so-called operating focus in the associated display device. In particular, the operating focus can always be displayed in the operating target that can currently be operated using the control unit. The operating focus can be implemented by changing the color and / or the brightness and / or contrast of parts or the entire content of the display of the respectively assigned operating target. Furthermore, the operating focus can be set by displaying a symbol, a frame, and / or displaying text.

[0004] Therefore, numerous approaches to highlighting the currently active display are already known in the state of the art. The challenge when displaying a suitable operating focus or a suitable hint to highlight the currently active display is to find a suitable compromise between perceptibility by the user and distraction, especially for the driver. If the hint is displayed too large and / or conspicuously, this can distract the driver from the driving situation. If the hint is displayed too small and / or inconspicuously, it may not be easy to recognize or only with distraction from the driving situation, as the driver has to search for it. In a head-up display, additional displays should be avoided or minimized wherever possible due to occlusion and contrast limitations.

[0005] EP 3 243 688 A1 describes a method and a device for assigning control commands in a vehicle. Occupant gaze information is acquired and used to control a system, optionally by a first or a second control device in the vehicle.

[0006] EP 3 421 285 A1 relates to an interface system for a vehicle and, more particularly, to an interface system for a vehicle using an interface device removably mounted on a display surface.

[0007] US 2017 / 0269704 A1 relates to a display device for a vehicle comprising a first display section for displaying at least one map, a second display section for displaying information for operating a display content of the first display section, an operating section, a vehicle speed detecting section for detecting the speed of the vehicle, and a control section.

[0008] The object of the present invention is to at least partially address the problems described above. In particular, the object of the present invention is to create a method and a system for perceptibly highlighting a current operating state, whereby sufficiently good perceptibility can be achieved with as little distraction from the driving situation as possible.

[0009] The above object is achieved by the patent claims. In particular, the above object is achieved by the display system according to claim 1, the vehicle according to claim 7, the method according to claim 8, the computer program product according to claim 9, and the storage means according to claim 10. Further advantages of the invention emerge from the subclaims, the description, and the figures. Features described in connection with the display system naturally also apply in connection with the vehicle according to the invention, the method according to the invention, the computer program product according to the invention, the storage means according to the invention, and vice versa, so that with regard to the disclosure of the individual aspects of the invention, reference is and / or can always be made reciprocally.

[0010] According to a first aspect of the present invention, a display system for a vehicle is proposed. The display system comprises a first display means for displaying information at a first location in the vehicle and a second display means for displaying information at a second location in the vehicle remote from the first location. The display system further comprises an operating unit for manually operating the first display means and the second display means, wherein the operating unit comprises a switching means for switching between a first operating state, in which the operating unit is configured to manually operate the first display means, and a second operating state, in which the operating unit is configured to manually operate the second display means.The display system also has an indication means for creating a visually perceptible first indication on the first display means for indicating the first operating state and for creating a visually perceptible second indication on the second display means for indicating the second operating state. The operating unit also comprises an actuating means for visually highlighting the first operating state and the second operating state by visually changing the first indication in the first operating state and / or the second indication in the second operating state by manually actuating the actuating means.

[0011] Within the scope of the present invention, it was recognized that the desired compromise between good perceptibility and low interference or distraction factor can be achieved by emphasizing an already existing indication or operating focus with a low distraction factor again if necessary. This means that if the first operating state is present or the first display means is already in the so-called operating focus, the visualized indication for displaying the operating focus can be changed again, in particular reinforced. In the solutions known from the prior art, the operating focus was indicated by visually perceptible changes on the selected display means, but no further visual change was provided. Until now, this meant that a choice had to be made between better perceptibility and a higher distraction factor. The display system according to the invention can accommodate both requirements equally.Only a simple actuation by the driver and / or a user of the display system is required.

[0012] The first operating state can be understood as a state in which the first display means is in the operating focus. The second operating state can be understood as a state in which the second display means is in the operating focus. The second display means can be understood as at least one further display means. This means that the display system is not limited to two display means. The display system can also have a third or fourth display means, wherein the switching means can be configured accordingly to switch between three, four or more different operating states, in each of which only one display means is in the operating focus. In such a case, the actuating means is configured to visually highlight the respective operating state by visually changing the respective indication.

[0013] If the operating unit is in the first operating state, the operating unit is configured to manually perform a standard operation of the first display means, i.e., to perform a proper operation of the first display means. If the operating unit is in the second operating state, the operating unit is configured to manually perform a standard operation of the second display means, i.e., to perform a proper operation of the second display means. Standard operation is to be understood in particular not as, or not only as, the activation and / or deactivation of the respective display means. Changing the respective information can therefore be understood as reinforcing a focus effect and / or as reinforcing the operating focus. Changing the respective information can be understood as changing the shape, size, contrast, color, brightness, and / or position of the information.However, such a change is only made at the user's request or by using the control device. Until then, the operating focus is implemented solely through the basic form of the visual cue.

[0014] In the first operating state, the operating unit is preferably configured to exclusively or predominantly operate the first display means, and in the second operating state, the operating unit is preferably configured to exclusively or predominantly operate the second display means. This means that in the first operating state, the operating unit or the switching means can switch back to the second operating state, and simple operating functions for the second display means, such as accepting a call displayed on the second display means, are also possible. However, the main functions and / or a large part of the operating functionality of the operating unit are exclusively available for the first display means in the first operating state. The same applies analogously to the second operating state and the second display means.

[0015] The first display means and the second display means can each have a screen and / or be configured to represent and / or have a screen for displaying digital information. The first display means and the second display means are positioned at a distance from one another in the three-dimensional space of the vehicle. Preferably, the first display means has a physical screen in the vehicle, and the second display means has a head-up display. The first display means is designed in particular in the form of a combination instrument or can have a combination instrument.

[0016] The operating unit can have mechanical and / or haptic operating elements in the form of buttons and / or a shift drum, and / or touch-sensitive and / or capacitive operating elements in the form of a touch display or a touch panel. The operating unit is preferably designed in the form of a steering wheel operating unit and / or an operating unit suitable for installation in a steering wheel of the vehicle. For this purpose, the operating unit can in particular have a rocker switch. At least part of such a rocker switch and / or at least part of the operating elements described above can form the actuating means and / or the switching means. Thus, the switching means in particular has direction-related buttons, preferably in the form of a rocker switch, for switching between the different operating states.The actuating means can have an actuating element configured centrally in the rocker switch for optically highlighting the respective operating state or can be configured as part of the direction-related buttons of the operating unit and / or the switching means.

[0017] The indication means can preferably be actuated and / or controlled by the operating unit to create the respective indication. This means that a user can control the indication means by manually actuating or operating the operating unit to create the first or second indication. The indication means is thus preferably configured in the form of at least one electrical circuit, a digital circuit and / or a corresponding control unit for creating the respective indication. The indication means is preferably configured to create the visually perceptible first indication in the form of a straight line, in particular directly below or above a currently displayed vehicle speed, on the first display means and / or to create the visually perceptible second indication in the form of a straight line, in particular directly below or above a currently displayed vehicle speed, on the second display means.Such a linear indication represents an advantageous compromise between sufficient perceptibility and low disturbance factor.

[0018] The control unit and the switching means can have the same actuating elements. Thus, the control unit can have direction-specific actuating elements for operating the display means, whereby these actuating elements, for example in the form of arrow keys, can also be configured for switching between the different operating states.

[0019] According to a further embodiment of the present invention, it is possible for the actuating means in a display system to be configured to visually highlight the first operating state and the second operating state by illuminating the first indication in the first operating state and / or the second indication in the second operating state by manually actuating the actuating means. This means that by actuating the actuating means, it is possible to illuminate the first indication in the first operating state and the second indication in the second operating state. Illumination can be understood as a glow or a glow effect, i.e. a targeted increase in brightness in an edge area of ​​the respective indication, to highlight the indication. Such a change in the indication is sufficiently perceptible without causing excessive distraction from surrounding traffic.Tests within the scope of the present invention have shown that a lighting up according to the invention represents a significantly lower disturbance factor than, for example, a change in the size and / or position of the notice.

[0020] Furthermore, it is possible for a display system according to the present invention to configure the operating unit to operate the first display means and / or to operate the second display means by manually applying a first pressure to the operating unit, and for the actuating means to be configured to visually highlight the first operating state and the second operating state by manually applying a second pressure to the actuating means that is lower than the first pressure. This makes it possible to provide a type of hover feature by means of which the operating focus can be communicated to the user in a more salient manner, if necessary, in the manner according to the invention by only lightly swiping the finger over the actuating means or a part of the operating unit, or by only briefly placing the finger on the actuating means without exerting any significant pressure on the actuating means.The actuating means can be positioned centrally in and / or on a directional control unit, for example, in the form of a centrally positioned control element. However, the actuating means can also be positioned as part of directional arrow keys of the control unit and / or the switching means, decentrally and / or remotely from a main body of the control unit, which, for example, comprises the switching means. The actuating means can be configured in the form of a button, a selection roller, or a touch-sensitive or capacitive touch panel.

[0021] According to a further embodiment of the present invention, it is possible for the switching means to have at least one actuating element for switching between the two operating states, and for the actuating means to have the same at least one actuating element for optically highlighting the operating states. The at least one actuating element is configured to switch between the operating states by manually applying a first pressure to the at least one actuating element and to optically highlight the operating states by manually applying a second pressure that is lower than the first pressure. The at least one actuating means can therefore be configured with a so-called force-touch function and / or a pressure-dependent switching function.Such a function is known, for example, from current smartphones in the touch display and from camera systems in a shutter release, where focusing or taking a photo depends on the pressure point of the shutter release. By implementing it in the proposed display system, the various functional components can be made available in a space-saving and, in particular, intuitive way. The at least one actuating element can be understood as a central button or a central operating unit within a rocker switch and / or a cross switch. However, the at least one actuating element can also be understood as the entire rocker switch or the entire cross switch including the various actuating elements, where it is possible to switch between the operating states by means of arrow keys and the first pressure, and when the second, lesser pressure is applied to one of the arrow keys orPressing one of the actuating elements can trigger the optical highlighting of the respective cue. In other words, by changing the capacitance, a touch can be identified without exceeding a pressure threshold. If such a touch is detected, the cue can be highlighted, for example. To execute a focus change, however, a predefined or predefinable pressure threshold must be exceeded.

[0022] A display system according to the invention can further comprise a third display means, which is spaced apart from the first display means and the second display means, for generating a visually perceptible indication for indicating a switchover between the first operating state and the second operating state, for indicating the first operating state and / or for indicating the second operating state. The indication generated by the third display means can be understood as an optionally perceptible indication which a user of the display system can, but does not have to, perceive in order to recognize the current operating state. The indication on the third display means can therefore be displayed relatively freely, i.e. large, small, particularly bright, or particularly dark. The third display means can be configured in the form of a screen in the center console. On such a display means, for example, a front passenger can also easily see the current operating focus orDetect the operating status. This can be particularly advantageous if the driver is still inexperienced and the passenger, as a supervising companion, wants to quickly and easily recognize the current operating status. Additionally or alternatively, the third display means can comprise a screen-independent display, such as a light strip and / or individual LEDs.

[0023] Furthermore, it is possible for a display system according to the invention to have a lighting means for generating a light path from the first display means to the second display means when switching from the first display means to the second display means, and for generating a light path from the second display means to the first display means when switching from the second display means to the first display means. With the aid of such a light path and / or a corresponding light-guiding device, the attention of the driver or a user of the display system can be clearly perceptibly directed to the activated display means or the display means in the operating focus during switching. This can prevent situations in which the user is unclear as to whether a switch has been made from the first operating state to the second operating state or from the second operating state to the first operating state, even without a perceived indication in the display means.The light path can be generated directly or via detours from the first display means to the second display means, as well as from the second display means to the first display means. To generate the light path, the illuminating means preferably comprises linear illuminating elements and / or is at least partially configured as a linear illuminating means.

[0024] According to a further aspect of the present invention, a vehicle is provided with a steering wheel and a display system as described above, wherein the operating unit and / or the actuating means are installed on the steering wheel. Such a vehicle is preferably designed as a road vehicle, in particular in the form of a car or truck. However, the vehicle can also be designed as a rail vehicle, aircraft, watercraft, or robot. A further aspect of the present invention relates to a method for optically highlighting different operating states in a display system of a vehicle as described above. The method comprises the following steps: Switching between the first operating state and the second operating state to create a visually perceptible first indication on the first display means for indicating the first operating state or a visually perceptible second indication on the second display means for indicating the second operating state, and visually changing the first indication in the first operating state to visually highlight the first operating state or visually changing the second indication in the second operating state to visually highlight the second operating state.

[0025] Thus, the vehicle according to the invention and the method according to the invention bring with them the same advantages as have been described in detail with reference to the display system according to the invention.

[0026] According to a further aspect of the invention, a computer program product is proposed that comprises instructions that, when executed by a computer, cause the computer to execute the described method using a display system as described above. Furthermore, a computer-readable storage medium is provided on which such a computer program product is stored. The storage medium is preferably configured as a non-volatile storage medium. Thus, the computer program product according to the invention and the storage medium according to the invention also provide the advantages described above.

[0027] The computer program product may be implemented as computer-readable instruction code in any suitable programming language and / or machine language, such as JAVA, C++, C#, and / or Python. The computer program product may be stored on a computer-readable storage medium, such as a data disk, a removable drive, volatile or non-volatile memory, or a built-in memory / processor. The instruction code may program the computer or other programmable devices, such as a vehicle control unit, to perform the desired functions. Furthermore, the computer program product may be provided and / or be available on a network, such as the Internet, from which it can be downloaded by a user as needed.The computer program product can be and / or be implemented by means of software as well as by means of one or more special electronic circuits, i.e. in hardware or in any hybrid form, i.e. by means of software components and hardware components.

[0028] Further measures improving the invention will become apparent from the following description of various exemplary embodiments of the invention, which are schematically illustrated in the figures. All features and / or advantages apparent from the claims, the description, or the figures, including structural details and spatial arrangements, may be essential to the invention both individually and in various combinations.

[0029] They show schematically: Figure 1 shows a representation to explain a display system according to a first embodiment of the present invention in a first operating state, Figure 2 shows a representation to explain switching between two operating states in a display system according to the first embodiment of the present invention, Figure 3 shows a representation to explain a display system according to the first embodiment of the present invention in a second operating state, Figure 4 shows a vehicle interior to explain the display system according to the invention, Figure 5 shows a vehicle with a display system according to the invention, Figure 6 shows a storage means with a computer program product stored thereon, and Figure 7 shows a flow chart to explain a method according to the invention.

[0030] Elements with the same function and mode of operation are provided with the same reference symbols in the figures.

[0031] In Fig. 1 is a display system 10 for a Fig. 7 shown vehicle 50 is shown. The display system 10 has a first display means 11 for displaying information at a first location in the vehicle 50 and a second display means 12 for displaying information at a second location in the vehicle 50, remote from the first location. The first display means 11 is designed in the form of a combination instrument and the second display means 12 is configured or visualized in the form of a head-up display. The display system 10 shown further has an operating unit 13 for manually operating the first display means 11 and the second display means 12, wherein the operating unit 13 has a switching means 14 for switching between a Fig. 1 shown first operating state S1, in which the operating unit 13 is configured for manually operating the first display means 11, and a Fig. 2 and Fig. 3 shown second operating state S2, in which the operating unit 13 is configured for manually operating the second display means 12. The operating unit 13 is in the form of a rocker switch of a steering wheel 24 or for such a steering wheel 24 of the vehicle 50. The switching means 14 is designed in the form of the arrow keys of the operating unit 13 or has these for switching between the two operating states S1, S2. In the present example, the upward-pointing arrow key can be used to switch from the first operating state S1 to the second operating state S2, and the downward-pointing arrow key can be used to switch from the second operating state S2 to the first operating state S1. Accordingly, when switching between the first display means 11 or the first operating state S1 and the second display means 12 orThe second operating state S2 provides a spatial and iconographic relationship between the switching movement (from bottom to top and from top to bottom), the button positioning (top and bottom on the rocker switch or the control island), and the button symbols (up / down arrows / triangles). This allows the display system to be operated particularly intuitively.

[0032] The display system 10 also has an indicator 15 for generating a visually perceptible first indicator 16 on the first display 11 to indicate the first operating state S1 and for generating a visually perceptible second indicator 17 on the second display 12 to indicate the second operating state S2. The indicator 15 is configured in the form of a digital switching component of a computer 22, wherein the computer 22 is provided in the form of a vehicle control unit. The first indicator 16 is displayed in the form of a line below the vehicle speed. Fig. 1 The first operating state S1 shown is therefore indicated by the first indication 16 in the form of a line or a line below the vehicle speed.

[0033] As in Fig. 1 As shown, the operating unit 13 further comprises an actuating means 18 for optically highlighting the first operating state S1 and the second operating state S2 by optically changing the first indication 16 in the first operating state S1 and the second indication 17 in the second operating state S2 by manually actuating the actuating means 18. In the example shown, the actuating means 18 is designed in the form of a central actuating element centrally located to the arrow keys. Fig. 1 shows a first operating state S1, in which the actuating means 18 is or was manually actuated, thereby visually changing the first indication 16. More precisely, the first indication 16 is changed such that a so-called glow effect is generated on the line, i.e., the first indication 16 or the border of the line lights up. According to an alternative embodiment not shown in a separate figure, it is possible for the actuating means 18 to have the same two actuating elements as the switching means 14, in this case the up arrow key and the down arrow key, for visually highlighting the operating states S1, S2.In this case, the two actuating elements, i.e. the arrow keys, are configured to switch between the operating states S1, S2 by manually applying a first pressure and to visually highlight the operating states S1, S2 by manually applying a second pressure that is lower than the first pressure. In a similar way, an embodiment with only one capacitive touch display or touch panel, i.e. without arrow keys, is also possible, in which the current operating state S1, S2 can be highlighted by lightly placing a finger on the display and, if a harder pressure is applied or if a predefined pressure force is exceeded, the device can be switched between or toggled back and forth between the two operating states S1, S2. Such a touch panel can, for example, be located in the middle of the device shown in . Fig. 1 shown switching cross.

[0034] In Fig. 1 is also a lighting means 19 in the form of two light strips for generating a light path from the first display means 11 or from an area near the first display means 11 in the direction of the second display means 12 when switching from the first display means 11 to the second display means 12 and for generating a light path from the second display means 12 or from an area near the second display means 12 in the direction of the first display means 11 when switching from the second display means 12 to the first display means 11. The two light strips are to be regarded only symbolically for a lighting means 19 which visually supports a transition between the two operating states S1, S2 in the vehicle 50 outside the two display means 11, 12 and thus makes the direction of the switching particularly clear to the user.A computer program product 20 is installed on the computer 22 of the illustrated display system 10, which computer program product includes instructions which, when the computer 22 executes the computer program product 20, cause the computer 22 to execute the instructions described later with reference to FIG. Fig. 7 described methods using the display system 10.

[0035] In the Fig. 2 The display system 10 shown in Fig. 1 The control unit 13 is switched from the first operating state S1 shown in the figure to the second operating state S2, in which the control unit 13 is preferably configured to operate the second display means 12 in the form of the head-up display. In the second operating state S2, the operating focus is therefore on the second display means 12. However, the second indication is not yet highlighted. This is not yet highlighted in the second operating state S2 according to Fig. 3 made.

[0036] Fig. 4 shows a vehicle interior of the vehicle 50 with the above-described first display means 11, the second display means 12, and a third display means 23. The third display means 23 is designed in the form of a display or screen of the center console, spaced apart from the first display means 11 and spaced apart from the second display means 12, and is configured to create a visually perceptible indication for indicating a switchover between the first operating state S1 and the second operating state S2, for indicating the first operating state S1, and for indicating the second operating state S2. The third display means 23 can thus be understood as a further control instance for controlling and / or checking the current operating state S1, S2, or operating focus.

[0037] In Fig. 5 a vehicle 50 in the form of a passenger car is shown, which has a display system 10 as described in detail above, in which the operating unit 13 and the actuating means 18 are installed on a steering wheel 24 of the vehicle 50.

[0038] Fig. 6 shows a non-volatile and computer-readable storage means 21 on which a, as already Fig. 1 described, computer program product 20 for carrying out the method described below is stored.

[0039] Fig. 7 shows a flow chart for explaining a method for optically highlighting different operating states S1, S2 in a display system 10 of a vehicle 50 as described above. The core of the method is that in a first step S1, switching is initially carried out between the first operating state S1 and the second operating state S2 using the indication means 15 for creating an optically perceptible first indication 16 on the first display means 11 for indicating the first operating state S1 or an optically perceptible second indication 17 on the second display means 12 for indicating the second operating state S2.If one of the two operating states S1, S2 is present and this is visually indicated by a correspondingly created indication 16, 17, in a second step S2, the first indication 16 in the first operating state S1 is optically modified to visually highlight the first operating state S1, or the second indication 17 in the second operating state S2 is optically modified to visually highlight the second operating state S2. For example, the first indication 16 in the first operating state S1 and / or the second indication 17 in the second operating state S2 can each be highlighted using the glow effect described above.

[0040] The invention allows for further design principles in addition to the embodiments illustrated. This means that the invention should not be considered limited to the embodiments explained with reference to the figures. Bezugszeichenliste

[0041] 10Display system 11First display means 12Second display means 13Operating unit 14Switching means 15Indication means 16First indication 17Second indication 18Actuating means 19Lighting means 20Computer program product 21Storage means 22Computer 23Third display means 24Steering wheel 50Vehicle S1first operating state S2second operating state

Claims

1. Display system (10) for a vehicle (50), the system comprising: - a first display means (11) for displaying information at a first location in the vehicle (50), - a second display means (12) for displaying information at a second location in the vehicle (50) remote from the first location, - an operating unit (13) for manually operating the first display means (11) and the second display means (12), the operating unit (13) having a switching means (14) for switching between a first operating state (S1), in which the operating unit (13) is configured for manually operating the first display means (11), and a second operating state (S2), in which the operating unit (13) is configured for manually operating the second display means (12), and - an indicating means (15) for creating a visually perceptible first indication (16) on the first display means (11) to indicate the first operating state (S1) and for creating a visually perceptible second indication (17) on the second display means (12) to indicate the second operating state (S2), characterized in that the operating unit (13) has an actuating means (18) for optically highlighting the first operating state (S1) and the second operating state (S2) by optically changing the first indication (16) in the first operating state (S1) and / or the second indication (17) in the second operating state (S2) by manually actuating the actuating means (18).

2. Display system (10) according to claim 1, characterized in that the actuating means (18) is configured to optically highlight the first operating state (S1) and the second operating state (S2) by lighting up the first indication (16) in the first operating state (S1) and / or the second indication (17) in the second operating state (S2) by manually actuating the actuating means (18).

3. Display system (10) according to either of the preceding claims, characterized in that the operating unit (13) is configured to operate the first display means (11) and / or to operate the second display means (12) by manually applying a first pressure to the operating unit (13), and the actuating means (18) is configured to optically highlight the first operating state (S1) and the second operating state (S2) by manually applying a second pressure to the actuating means (18) which is lower than the first pressure.

4. Display system (10) according to any of the preceding claims, characterized in that the switching means (14) has at least one actuating element for switching between the two operating states (S1, S2) and the actuating means (18) has the same at least one actuating element for optically highlighting the operating states (S1, S2), the at least one actuating element being configured to switch between the operating states (S1, S2) by manually applying a first pressure to the at least one actuating element and to optically highlight the operating states (S1, S2) by manually applying a second pressure which is lower than the first pressure.

5. Display system (10) according to any of the preceding claims, characterized by a third display means (23), spaced apart from the first display means (11) and the second display means (12), for creating a visually perceptible indication to indicate a switchover between the first operating state (S1) and the second operating state (S2), to indicate the first operating state (S1) and / or to indicate the second operating state (S2).

6. Display system (10) according to any of the preceding claims, characterized by a lighting means (19) for generating a light path from the first display means (11) to the second display means (12) when switching from the first display means (11) to the second display means (12) and for generating a light path from the second display means (12) to the first display means (11) when switching from the second display means (12) to the first display means (11).

7. Vehicle (50) comprising a steering wheel (24) and a display system (10) according to any of the preceding claims, wherein the operating unit (13) and / or the actuating means (18) are installed on the steering wheel (24).

8. Method for optically highlighting different operating states (S1, S2) in a display system (10) according to any of claims 1 to 6 in a vehicle (50), comprising the steps of: - switching between the first operating state (S1) and the second operating state (S2) to create a visually perceptible first indication (16) on the first display means (11) to indicate the first operating state (S1) or a visually perceptible second indication (17) on the second display means (12) to indicate the second operating state (S2), and - optically changing the first indication (16) in the first operating state (S1) to optically highlight the first operating state (S1) or optically changing the second indication (17) in the second operating state (S2) to optically highlight the second operating state (S2).

9. Computer program product (20) comprising commands which, when the computer program product (20) is executed by a computer (22), cause the computer to carry out the method according to claim 8 using a display system (10) according to any of claims 1 to 6.

10. Computer-readable storage means (21) having a computer program product (20) according to claim 9 stored thereon.