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

Abstract

The invention relates to a display system (10) for a vehicle (50) with a first display device (11) for displaying information at a first location in the vehicle (50), a second display device (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 device (11) and the second display device (12), a switching device (14) for switching between two operating states (S1, S2), an indication device (15) for generating an optically perceptible indication (16, 17) in the respective operating state (S1, S2) and a manipulation device (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 manual manipulation of the manipulation device (18). The invention also relates to a vehicle (50) having a display device (11) according to the invention, a method for optically highlighting different operating states (S1, S2) using a display device (11) according to the invention, a computer program product (20) for carrying out a method according to the invention and a storage medium (21) having stored thereon a computer program product (20) according to the invention.

Description

[0001] This invention relates to a display system for vehicles, used to display different operating and driving parameters of the vehicle on different display devices. The invention also relates to a vehicle having such a display system and a method for optically highlighting different operating states in such a display system. Furthermore, the invention relates to a computer program product for performing this method and a storage medium on which such computer program product is stored.

[0002] Modern vehicle cockpits offer a variety of display and operation options. Head-up displays (HUDs) are increasingly being installed alongside instrument clusters, directly along the driver's line of sight. HUD installation offers advantages in terms of ergonomics and driving safety. For example, HUDs allow for the perception of important information without taking the driver's eyes off the road, requiring less visual adaptation (or accommodation). Instrument clusters, on the other hand, offer advantages when displaying complex content such as 3D maps or media. Furthermore, since contrast values ​​depend on relative ambient brightness and other factors, such as wearing polarized sunglasses, HUDs alone cannot guarantee the permanent visibility of legally relevant information. The unique advantages of both display devices create requirements and customer needs for displaying and operating appropriately tailored functions on both displays. Because these two displays do not form a continuous plane, switching between them is necessary—that is, switching between a first operating state for operating the first display device and another operating state for operating the other display device. Different methods for this are known in the prior art.

[0003] In some vehicles, switching between possible operating states can be done through a menu on a central display and control unit, typically located in the center console area. However, this solution is cumbersome for the driver and unsuitable for use while driving. Alternatively, in some known solutions, switching between different operating states can be done via an operating unit on the steering wheel. For example, German patent application DE10 2019 119 135 A1 describes a system for switching between operating targets, such as the instrument cluster and head-up display, using a rocker switch on the steering wheel. It further describes how the correspondence or assignment of operating elements to corresponding control targets or display devices can be indicated by outputting corresponding optical, acoustic, and / or tactile indicators within the vehicle. Optical indicators can be achieved, in particular, by outputting a so-called operating focus on the relevant display device. Specifically, the operating focus can always be displayed on the operating target currently operable by the operating unit. The operating focus can be achieved by changing the color and / or brightness and / or contrast of some or all of the displayed content of the assigned operating target. Additionally, the focus of the operation can be set by fading in display symbols, fade in display frames, and / or output text on the display.

[0004] Therefore, many methods for highlighting the currently active display device are known in the prior art. The challenge in displaying a suitable operational focus or appropriate indication to highlight the currently active display device is finding a suitable trade-off between user perceptibility and the degree of distraction, especially for the driver. If the indication is displayed too large and / or too conspicuous, it will distract the driver from the driving situation. If the indication is displayed too small and / or inconspicuous, it may not be easily recognized in certain situations or may only be recognized when attention is diverted from driving. In head-up displays, additional displays should be avoided or minimized as much as possible due to obstruction and contrast limitations.

[0005] The technical problem to be solved by the present invention is to at least partially address the problems described above. In particular, the technical problem to be solved by the present invention is to provide a method and system for perceptibly highlighting the current operating state, wherein sufficiently good perceptibility can be achieved with minimal distraction from driving.

[0006] The aforementioned technical problems are solved by the claims. In particular, the aforementioned technical problems are solved 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 medium according to claim 10. Other advantages of the invention are apparent from the dependent claims, the description, and the drawings. Here, the features described with respect to the display system are of course also applicable to the vehicle according to the invention, the method according to the invention, the computer program product according to the invention, and the storage medium according to the invention, and vice versa; therefore, for the purposes of disclosure, each individual aspect of the invention always references or may reference each other.

[0007] According to a first aspect of the invention, a display system for a vehicle is proposed. The display system has a first display device for displaying information at a first location in the vehicle and a second display device for displaying information at a second location in the vehicle, the second location being remote from the first location. The display system further includes an operating unit for manually operating the first and second display devices, wherein the operating unit has a switching device for switching between a first operating state and a second operating state, wherein in the first operating state, the operating unit is configured to manually operate the first display device, and in the second operating state, the operating unit is configured to manually operate the second display device. The display system further includes an indicating device for generating (or creating) an optically perceptible first indication on the first display device to indicate the first operating state and for generating an optically perceptible second indication on the second display device to indicate the second operating state. The operating unit further includes a manipulation device for optically highlighting the first and second operating states by manually manipulating the manipulation device to optically change the first indication in the first operating state and / or the second indication in the second operating state.

[0008] Within the scope of this invention, it has been recognized that the desired trade-off between good perceptibility and a low distraction coefficient can be achieved by highlighting existing indicators (or prompts) or operational focuses with a low distraction coefficient when needed. This means that if a first operational state exists or the first display device is already in a so-called operational focus, the visual indication used to display the operational focus can be changed again, and in particular enhanced. In solutions known from the prior art, while the operational focus is made identifiable by a visually perceptible change on the selected display device, no further visual change is specified. Therefore, until now, a choice had to be made between better perceptibility and a lower distraction coefficient. The display system according to the invention takes both expectations into account. Only simple manipulation actions by the driver and / or the user of the display system are required.

[0009] The first operating state can be understood as the state in which the first display device is in the operating focus. The second operating state can be understood as the state in which the second display device is in the operating focus. The second display device can be understood as at least one other display device. That is, the display system should not be considered limited to two display devices. Therefore, the display system may also have a third or fourth display device, wherein the switching device can be configured accordingly to switch between three, four or more different operating states, in which only one display device can be in the operating focus in each operating state. In this case, the operating device is configured to optically highlight the corresponding operating state by optically changing the corresponding indication.

[0010] If the operating unit is in the first operating state, it is configured to manually perform standard operations on the first display device, i.e., to perform prescribed operations on the first display device. If the operating unit is in the second operating state, it is configured to manually perform standard operations on the second display device, i.e., to perform prescribed operations on the second display device. Standard operations should not be construed as, or should not be construed as, simply activating and / or deactivating the corresponding display device. Therefore, changing the corresponding indication can be understood as enhancing the focus effect and / or enhancing the operational focus. Changing the corresponding indication can be understood as changing the shape, size, contrast, color, brightness, and / or position of the indication. However, such changes are only made upon user request or when using a control device. Prior to this, the operational focus is achieved solely through the basic shape of the optical indication.

[0011] In the first operating state, the operating unit is preferably configured to operate the first display device exclusively or primarily, and in the second operating state, the operating unit is preferably configured to operate the second display device exclusively or primarily. That is, in the first operating state, although the operating unit or switching device can switch back to the second operating state, and simple operational functions of the second display device, such as answering a phone call displayed on the second display device, can be performed when necessary, in the first operating state, the main and / or most operational functions of the operating unit are only used by the first display device. The same applies to the second operating state and the second display device.

[0012] The first and second display devices may each have a screen and / or be configured to serve as and / or have a screen for displaying digital information. The first and second display devices are positioned spaced apart from each other in the three-dimensional space of the vehicle. Preferably, the first display device has a physical screen in the vehicle, and the second display device has a head-up display. The first display device is particularly designed in the form of a combination instrument cluster or may have a combination instrument cluster.

[0013] The operating unit can have mechanical and / or tactile operating elements in the form of buttons and / or control rollers, and touch-sensitive and / or capacitive operating elements in the form of touch displays or touch panels. The operating unit is preferably designed as a steering wheel operating unit and / or an operating unit suitable for installation in a vehicle steering wheel. For this purpose, the operating unit can particularly have a cross-shaped rocker. At least a portion of such a cross-shaped rocker and / or at least a portion of the aforementioned operating elements can constitute a control device and / or a switching device. The switching device has buttons, particularly those related to direction, preferably in the form of a cross-shaped rocker, for switching between different operating states. The control device can have an operating element designed in the center of the cross-shaped rocker for optically highlighting the corresponding operating state, or be configured as part of the direction-related buttons of the operating unit and / or switching device.

[0014] The indicating device is preferably operable and / or controllable by an operating unit to generate a corresponding indication. That is, the user can manipulate the indicating device by manually operating or manipulating the operating unit to generate a first or second indication. Therefore, the indicating device is preferably configured as at least one circuit, digital circuit, and / or a corresponding monitoring unit for generating the corresponding indication. Preferably, the indicating device is configured to generate an optically perceptible first indication in a straight line on a first display device, particularly directly below or above the currently displayed vehicle speed, and / or to generate an optically perceptible second indication in a straight line on a second display device, particularly directly below or above the currently displayed vehicle speed. This linear indication represents a favorable trade-off between sufficient perceptibility and a low interference coefficient.

[0015] The operating unit and the switching device may have the same operating elements. Therefore, the operating unit may have orientation-related operating elements for operating the display device, wherein these operating elements, for example in the form of arrow keys, may also be configured to switch between different operating states.

[0016] According to another embodiment of the invention, in a display system, a control device is configured to optically highlight a first operating state and a second operating state by manually manipulating the control device to illuminate a first indicator in a first operating state and / or a second indicator in a second operating state. That is, manipulating the control device can illuminate the first indicator in the first operating state and the second indicator in the second operating state. Illumination can be understood as glow or glow effect, i.e., a targeted increase in brightness in the edge area of ​​the corresponding indicator to highlight it. This change in the indicator is sufficiently perceptible without unduly distracting from the environmental conditions of road traffic. Tests within the scope of the invention have shown that illumination according to the invention has a significantly smaller interference coefficient compared, for example, with changes in the size and / or position of the indicator.

[0017] Furthermore, in the display system according to the invention, the operating unit is configured to operate the first display device and / or the second display device by manually applying a first pressure to the operating unit, and the manipulation device is configured to optically highlight the first and second operating states by manually applying a second pressure lower than the first pressure to the manipulation device. This provides a hovering function that allows the operating focus to be more prominently conveyed to the user when needed, according to the invention, by simply tracing a finger lightly across a portion of the manipulation device or operating unit, or by briefly placing a finger on the manipulation device without applying significant pressure. The manipulation device can be, for example, centrally positioned within and / or on the direction-dependent operating unit as a centrally positioned operating element. However, the manipulation device can also be positioned dispersed and / or distant from the main body of the operating unit, for example, including a switching device, as part of a direction-dependent arrow key of the operating unit and / or switching device. In this case, the manipulation device can be designed as a button, a selection roller, or a touch-sensitive or capacitive touch panel.

[0018] According to another design variation of the invention, the switching device has at least one actuating element for switching between two operating states, and the actuating device also has the same at least one actuating element for optically highlighting the operating states, wherein 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 lower than the first pressure. Therefore, the at least one actuating device can be configured with so-called force-touch functionality and / or pressure-related switching functionality. Such functionality is known, for example, from the shutter of the touch display and camera system of current smartphones, in which focusing or taking a picture can be performed based on the pressure point of the shutter. Different functional components can be provided in a space-saving and particularly intuitive manner through implementation in the proposed display system. The at least one actuating element can be understood as a central button or 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-shaped switch, including different actuating elements, wherein the operating state can be switched between arrow keys and a first pressure, and an optical highlighting of the corresponding indication can be triggered when a lower second pressure is applied to one of the arrow keys or one of the actuating elements. In other words, a touch can be detected by changing the capacitance without exceeding a pressure threshold. If such a touch is detected, the indication can be highlighted, for example. Conversely, a predefined or predefined pressure threshold must be exceeded in order to change the focus.

[0019] The display system according to the invention may further include a third display device spaced apart from the first and second display devices, for generating optically perceptible indications for indicating switching between a first and second operating state, indicating the first operating state, and / or indicating the second operating state. The indications generated by the third display device can be understood as optionally perceptible indications, which the user of the display system may, but is not required to, perceive in order to identify the current operating state. Therefore, the indications on the third display device can be displayed relatively freely, i.e., displayed larger, smaller, particularly bright, or particularly dark. The third display device may be configured as a screen designed into the center console. For example, the co-driver can also easily identify the current operating focus or operating state from such a display device. This may be particularly advantageous when the driver is inexperienced and the co-driver, as an accompanying supervisor, wants to quickly and easily identify the current operating state. Additionally or alternatively, the third display device may have a display device independent of the screen, such as a light strip and / or a single light-emitting diode.

[0020] Furthermore, it is feasible for the display system according to the invention to have an illumination device for generating an optical path from the first display device to the second display device when switching from the first display device to the second display device, and for generating an optical path from the second display device to the first display device when switching from the second display device to the first display device. By means of such optical paths and / or corresponding light guide devices, the attention of the driver or user of the display system can be significantly and perceptibly redirected to the activated display device or the display device in the operational focus during the switching process. Therefore, even if no indication is perceived in the display device, it prevents the user from being unaware of whether the switch has been made from the first operating state to the second operating state or vice versa. The optical paths can be generated directly from the first display device to the second display device and from the second display device to the first display device, or indirectly. To generate the optical paths, the illumination device preferably has linear illumination elements and / or is at least partially designed as a linear illumination device.

[0021] According to another aspect of the invention, a vehicle is provided having a steering wheel and a display system as described above, wherein an operating unit and / or control device is mounted on the steering wheel. This vehicle is preferably designed as a road vehicle, particularly a car or truck. However, the vehicle can also be designed as a rail vehicle, an aircraft, a water vehicle, or a robot. Another aspect of the invention relates to a method for optically highlighting different operating states in the display system of the vehicle as described above. The method comprises the following steps:

[0022] - Switching between a first operating state and a second operating state, for generating an optically perceptible first indication on a first display device to indicate the first operating state, or for generating an optically perceptible second indication on a second display device to indicate the second operating state, and

[0023] - Optically change a first indicator in a first operating state to optically highlight the first operating state, or optically change a second indicator in a second operating state to optically highlight the second operating state.

[0024] Therefore, the vehicle according to the invention and the method according to the invention have the same advantages as those already described in detail regarding the display system according to the invention.

[0025] According to another aspect of the invention, a computer program product is proposed, comprising commands that, when executed by a computer, cause the computer to perform the described method using the display system as described above. Furthermore, the invention also provides a computer-readable storage medium on which such a computer program product is stored. The storage medium is preferably configured as a non-volatile storage medium. Therefore, the computer program product according to the invention and the storage medium according to the invention also possess the aforementioned advantages.

[0026] The computer program product can 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 can be stored on a computer-readable storage medium, such as a data disk, removable drive, volatile or non-volatile memory, or built-in memory / processor. The instruction code can be used to program a computer or other programmable device, such as a vehicle control device, to perform the desired function. Furthermore, the computer program product can be provided and / or has been provided on a network such as the Internet, from which a user can download the computer program product when needed. The computer program product can be implemented and / or has been implemented in hardware, either through software or through one or more specific electronic circuits, or in any hybrid form, i.e., through software components and / or hardware components.

[0027] Further improvements to the invention can be derived from the following description of the various embodiments of the invention schematically illustrated in the accompanying drawings. All features and / or advantages derived from the claims, description, or drawings, including structural details and spatial arrangements, may be important to the invention not only in themselves but also in various combinations.

[0028] The following figures illustrate:

[0029] Figure 1 A view is shown illustrating the display system according to a first embodiment of the present invention in a first operating state;

[0030] Figure 2 A view is shown illustrating the switching between two operating states of the display system according to the first embodiment of the present invention;

[0031] Figure 3 A view is shown illustrating the display system according to the first embodiment of the present invention in a second operating state;

[0032] Figure 4 The interior space of a vehicle used to illustrate the display system according to the present invention is shown;

[0033] Figure 5 A vehicle having a display system according to the present invention is shown;

[0034] Figure 6 A storage medium having a computer program product stored thereon is shown; and

[0035] Figure 7 A flowchart illustrating the method according to the present invention is shown.

[0036] In the accompanying drawings, elements with the same function and the same mode of operation are respectively equipped with the same reference numerals.

[0037] exist Figure 1 The text is a mix of seemingly unrelated phrases and sentences, making it impossible to translate coherently. It appears to be a collection of fragments from various sources, possibly related to a document or program. Figure 7 The illustrated vehicle 50 has a display system 10. The display system 10 has a first display device 11 for displaying information at a first location within the vehicle 50 and a second display device 12 for displaying information at a second location within the vehicle 50, the second location being remote from the first location. The first display device 11 is designed in the form of an instrument cluster, and the second display device 12 is configured or visualized as a head-up display. The illustrated display system 10 also has an operation unit 13 for manually operating the first display device 11 and the second display device 12, wherein the operation unit 13 has functions for... Figure 1 The first operating state S1 and shown Figure 2 and Figure 3 The switching device 14 shown switches between the second operating states S1 and S2. In the first operating state, the operating unit 13 is configured to manually operate the first display device 11, and in the second operating state, the operating unit 13 is configured to manually operate the second display device 12. The operating unit 13 is configured as a cross-shaped rocker of a steering wheel 24 or such a steering wheel 24 for a vehicle 50. The switching device 14 is designed as arrow keys of the operating unit 13 or has these arrow keys for switching between the two operating states S1 and S2. In this example, the first operating state S1 can be switched to the second operating state S2 by using the upward arrow key, and the second operating state S2 can be switched back to the first operating state S1 by using the downward arrow key. Therefore, when switching between the first display device 11 or the first operating state S1 and the second display device 12 or the second operating state S2, there is a spatial and graphic relationship between the switching motion (from bottom to top and from top to bottom), the key positioning (the cross-shaped rocker or the upper and lower parts of the operating island), and the key symbols (upward / downward arrows / triangles). This makes the display system particularly intuitive to operate.

[0038] The display system 10 also includes an indicator 15 for generating an optically perceptible first indicator 16 on a first display device 11 to indicate a first operating state S1 and for generating an optically perceptible second indicator 17 on a second display device 12 to indicate a second operating state S2. The indicator 15 is configured as a digital switch component of a computer 22, wherein the computer 22 is provided as a vehicle control device. The first indicator 16 is shown as a line below the vehicle speed. That is, the first indicator 16 indicates the vehicle speed as a line or stripe below the vehicle speed. Figure 1 The first operating state S1 is shown.

[0039] like Figure 1 As shown, the operation unit 13 also includes a control device 18 for optically highlighting the first operation state S1 and the second operation state S2 by manually manipulating the control device 18 to optically change the first indicator 16 under the first operation state S1 and the second indicator 17 under the second operation state S2. In the example shown, the control device 18 is designed as a central control element centered relative to the arrow keys. Figure 1 The diagram shows a first operating state S1, in which the control device 18 is manually operated or has been manually operated, and thus the first indication 16 is optically altered. More specifically, the first indication 16 is altered such that a so-called glow effect is produced, i.e., the edge of the first indication 16 or the line is illuminated. According to an alternative embodiment, not shown in a separate figure, the control device 18 may have two control elements identical to the switching device 14, in this example an up arrow key and a down arrow key, to optically highlight operating states S1 and S2. In this case, the two control elements, i.e., the arrow keys, are configured to switch between operating states S1 and S2 by manually applying a first pressure and to optically highlight operating states S1 and S2 by manually applying a second pressure lower than the first pressure. Similarly, an implementation with only a capacitive touch display or touch panel, i.e., without arrow keys, is also feasible. In this implementation, the current operating state S1, S2 can be highlighted by lightly placing a finger on it, and switching or switching back and forth between two operating states S1, S2 can be achieved by pressing harder or exceeding a predefined pressure. Such a touch panel can be designed, for example, in... Figure 1 The center of the cross-shaped switch shown.

[0040] exist Figure 1The diagram also shows an illumination device 19 in the form of two light strips, used to generate a light path from the first display device 11 or an area near the first display device 11 toward the second display device 12 when switching from the first display device 11 to the second display device 12, and to generate a light path from the second display device 12 or an area near the second display device 12 toward the first display device 11 when switching from the second display device 12 to the first display device 11. These two light strips should be considered merely symbolic of the illumination device 19, which visually supports the transition between the two operating states S1 and S2 in the vehicle 50, in addition to the two display devices 11 and 12, thereby making the switching direction particularly clear to the user. A computer program product 20 is installed on the computer 22 of the illustrated display system 10. This computer program product includes instructions that, when executed by the computer 22, cause the computer to use the display system 10 to perform actions as described later. Figure 7 The method described.

[0041] exist Figure 2 In the display system 10 shown, it has been from Figure 1 The first operating state S1 is switched to the second operating state S2. In the second operating state, the operating unit 13 is preferably configured for the second display device 12, which is operated as a head-up display. That is, in the second operating state S2, the operation focus is on the second display device 12. However, the second indicator has not yet been highlighted or has never been highlighted. This highlighting only occurs when... Figure 3 It is only performed in the second operation state S2.

[0042] Figure 4 The interior space of a vehicle 50 is shown, comprising the aforementioned first display device 11, second display device 12, and third display device 23. The third display device 23 is designed as a display or screen for the center console, spaced apart from the first and second display devices 11 and 12, and configured to generate optically perceptible indications to indicate switching between a first operating state S1 and a second operating state S2, indicating the first operating state S1, and indicating the second operating state S2. Therefore, the third display device 23 can be understood as an additional monitoring mechanism for monitoring and / or checking the current operating state S1, S2, or operating focus.

[0043] exist Figure 5 The image shows a car-type vehicle 50, which has a display system 10 described in detail above, wherein an operating unit 13 and a control device 18 are mounted on a steering wheel 24 of the vehicle 50.

[0044] Figure 6This illustrates a non-volatile and computer-readable storage medium 21 on which information is stored as previously disclosed. Figure 1 The computer program product 20 described is used to perform the following methods.

[0045] Figure 7 A flowchart illustrating a method for optically highlighting different operating states S1 and S2 in the aforementioned display system 10 of a vehicle 50 is shown. At the heart of this method, in a first step S1, switching is first performed between a first operating state S1 and a second operating state S2 using an indicator device 15, so that an optically perceptible first indicator 16 is generated on a first display device 11 to indicate the first operating state S1, or an optically perceptible second indicator 17 is generated on a second display device 12 to indicate the second operating state S2. If one of the two operating states S1 and S2 exists and its existence is visually indicated by the correspondingly generated indicators 16 and 17, then in the second step S2, the first indicator 16 under the first operating state S1 is optically changed to optically highlight the first operating state S1, or the second indicator 17 under the second operating state S2 is optically changed to optically highlight the second operating state S2. The first indicator 16 under the first operating state S1 and / or the second indicator 17 under the second operating state S2 can be highlighted, for example, by the aforementioned glow effect.

[0046] In addition to the embodiments shown, the present invention allows for other design principles. That is, the present invention should not be considered as limited to the embodiments illustrated with reference to the accompanying drawings.

[0047] List of reference numerals

[0048] 10 Display System

[0049] 11 First display device

[0050] 12 Second display device

[0051] 13 Operation Units

[0052] 14 Switching device

[0053] 15 Indicating devices

[0054] 16 First Instruction

[0055] 17 Second Instruction

[0056] 18. Control device

[0057] 19 lighting fixtures

[0058] 20 Computer program products

[0059] 21 Storage Media

[0060] 22 Computers

[0061] 23 Third display device

[0062] 24 Steering Wheel

[0063] 50 means of transportation

[0064] S1 First Operation State

[0065] S2 Second Operation State

Claims

1. A display system (10) for a vehicle (50), comprising: - A first display device (11) is used to display information at a first location within the vehicle (50). - A second display device (12) for displaying information at a second location in the vehicle (50) away from the first location. - An operation unit (13) is used to manually operate the first display device (11) and the second display device (12), wherein, The operation unit (13) has a switching device (14) for switching between a first operation state (S1) and a second operation state (S2). In the first operation state (S1), the operation unit (13) is configured to manually operate the first display device (11), and in the second operation state (S2), the operation unit (13) is configured to manually operate the second display device (12). - An indicator device (15) is configured to generate an optically perceptible first indicator (16) on a first display device (11) to indicate a first operating state (S1) and to generate an optically perceptible second indicator (17) on a second display device (12) to indicate a second operating state (S2). Its features are, The operating unit (13) has a control device (18) for optically highlighting the first operating state (S1) and the second operating state (S2) by manually manipulating the control device (18) to optically change the first indication (16) under the first operating state (S1) and / or the second indication (17) under the second operating state (S2).

2. The display system (10) according to claim 1, Its features are, The control device (18) is configured to optically highlight the first operating state (S1) and the second operating state (S2) by illuminating the first indicator (16) under the first operating state (S1) and / or illuminating the second indicator (17) under the second operating state (S2) through manual operation of the control device (18).

3. The display system (10) according to any one of the preceding claims, Its features are, The operation unit (13) is configured to operate the first display device (11) and / or the second display device (12) by manually applying a first pressure to the operation unit (13), and the manipulation device (18) is configured to optically highlight the first operation state (S1) and the second operation state (S2) by manually applying a second pressure lower than the first pressure to the manipulation device (18).

4. The display system (10) according to any one of the preceding claims, Its features are, The switching device (14) has at least one actuating element for switching between two operating states (S1, S2), and the actuating device (18) has the same at least one actuating element for optically highlighting the operating states (S1, S2), wherein the at least one actuating element is configured to switch between the two 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 lower than the first pressure.

5. The display system (10) according to any one of the preceding claims, Its features are, A third display device (23) is provided, spaced apart from the first display device (11) and the second display device (12), for generating optically perceptible indications to indicate switching between a first operating state (S1) and a second operating state (S2), indicating the first operating state (S1) and / or indicating the second operating state (S2).

6. The display system (10) according to any one of the preceding claims, Its features are, An illumination device (19) is provided for generating an optical path from the first display device (11) to the second display device (12) when switching from the first display device (11) to the second display device (12), and for generating an optical path from the second display device (12) to the first display device (11) when switching from the second display device (12) to the first display device (11).

7. A vehicle (50) having a steering wheel (24) and a display system (10) according to any one of the preceding claims, wherein, The operating unit (13) and / or the control device (18) are mounted on the steering wheel (24).

8. A method for optically highlighting different operating states (S1, S2) in a display system (10) according to any one of claims 1 to 6 in a vehicle (50), comprising the steps of: - Switching between a first operating state (S1) and a second operating state (S2) to generate an optically perceptible first indication (16) on the first display device (11) to indicate the first operating state (S1), or to generate an optically perceptible second indication (17) on the second display device (12) to indicate the second operating state (S2), and - Optically change the first indication (16) under the first operating state (S1) to optically highlight the first operating state (S1), or optically change the second indication (17) under the second operating state (S2) to optically highlight the second operating state (S2).

9. A computer program product (20) comprising commands that, when executed by a computer (22), cause the computer to perform the method according to claim 8 using a display system (10) according to any one of claims 1 to 6.

10. A computer-readable storage medium (21) having a computer program product (20) according to claim 9, the computer program product being stored on the storage medium.

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