Display device for vehicle and method for operating the display device

Abstract

The invention relates to a display device (10) for a vehicle (12), comprising a display panel (16) for displaying at least one graphic display object (17), the display device (10) comprising a control circuit (18), the control circuit being designed to realize the display of the graphic display object (17) in such a way that information presented by the at least one graphic display object (17) is displayed according to predetermined physical environmental conditions. The display device comprises a support device (19), which is designed to support the display panel (16), the display panel being adjustable between a first position (P1) and a second position (P2). In the first position (P1), the graphic display object (17) is visually accessible to a user inside the vehicle (12), and in the second position (P2), the graphic display object (17) is visually accessible to at least one person outside the vehicle (10).

Description

Technical Field

[0001] The invention relates to a display device for a vehicle and a method for operating the display device. Background Art

[0002] At present, display devices have become an integral part of vehicles. Display devices generally include a display panel (with or without touch screen function) that is generally used as a user interface. The display panel is generally designed to display a graphical display object for providing information to the user, so that the information is visually accessible / visually accessible to the user. However, the user of the vehicle may want or need to communicate information with people outside the vehicle. These communications can take the form of printed or written notifications. For example, the user can leave a parking ticket on the dashboard of the vehicle, just behind the windshield, so that the parking ticket inspector can view the parking ticket through the windshield. In addition, other situations may occur, such as the user may need to leave a note for another person or more people outside the vehicle. However, this way of communicating with people outside the vehicle by using a written record or placing a parking ticket on the dashboard is not ideal, because the user or driver of the vehicle always needs to remember to write a note or leave a parking ticket before leaving the vehicle. In addition, it may be necessary to display a specific message to a specific person, but it should not be displayed to other people, which is impossible in the case of using a written record or parking ticket.

[0003] Patent document DE 10 2015 200 233 A1 discloses a device and a method for informing a vehicle driver outside the vehicle, in particular a passenger car driver, during an automatic parking operation using a display device, the display device being configured to be retractable between a retracted non-use position and a display setting extended into the instrument panel. This is achieved by means of a drive mechanism for extending and retracting the latter, the drive mechanism being additionally equipped for specifically acquiring a specific information position for informing the driver outside the vehicle.

[0004] Patent document US 2009 / 0128307 A1 discloses a display device for a vehicle, comprising a display device for displaying application data to a vehicle user and a guide device for moving the display device between at least two positions. The display device is characterized in that it further comprises a checking device for checking whether the display of the data of the application selected by the vehicle user is allowed under the actual state of the vehicle; and a releasing device for releasing the guiding device for controlling the display according to the application or any application selected by the vehicle user when the checking device issues a notification signal.

[0005] Document DE 102 38 531 A1 discloses a display device having a display panel with a variable optical element for generating an e-mail and for being arranged in a vehicle interior so that a vehicle component or an operating element in the vehicle can be seen through the display panel. The display panel can be directed to the vehicle component or the operating element from outside the driver's line of sight. Summary of the invention

[0006] The object of the present invention is to provide a display device for a vehicle which provides information display to a user inside the vehicle as well as to persons outside the vehicle, in particular when the user is not next to the vehicle and / or when the vehicle is parked.

[0007] This object is achieved by the subject matter of the independent claims. Advantageous developments of expedient and not insignificant further embodiments of the invention are specified in the following description, the dependent claims and the drawings.

[0008] The invention is based on an implementation that solves the problem of communicating / interacting with a predetermined user or multiple people outside a vehicle without having to write notes on paper and / or stick them on the vehicle or put them on the dashboard or leave them behind the windshield. According to the invention, a display device for a vehicle comprises a display panel designed to display at least one graphic display object. In addition, the display device comprises a control circuit designed to enable the display of at least one graphic display object. In other words, the display panel may comprise a pixel matrix. The control circuit may be adapted to drive the individual pixel elements of the pixel matrix so as to enable the display of at least one graphic display object. In addition, the display device comprises a support device designed to support the display panel, wherein the display panel is adjustable between a first position and a second position. In the first position, at least one graphic display object on the display panel is visually accessible to a user inside the vehicle. In other words, a user inside the vehicle, who may be the driver of the vehicle, may obtain / access the graphic display object displayed by the display panel. The graphic display object may include information such as a navigation route and / or the functionality of an infotainment system and / or a weather forecast port. In addition, in the second position, at least one graphic display object on the display panel is visually accessible to at least one of the multiple people outside the vehicle. On the one hand, the support device can support the display panel in a first position in such a way that the display panel is visually accessible to a user inside the vehicle, and on the other hand, the support device can be used to adjust the position of the display panel to a second position so that the display panel is visible from outside the vehicle. For example, the display device can be positioned or integrated on the dashboard of the vehicle in front of the windshield by means of the support device, so that in the first position the display panel is visually accessible to a user inside the vehicle, and the display panel can be rotated to the second position by means of the support device so that the display panel is visible from outside the vehicle through the windshield. According to the present invention, the display device enables communication between a user of the vehicle and multiple people outside the vehicle.

[0009] The display panel can be adjusted from the first position to the second position manually by a user, for example by rotating the display panel around the support device. In addition, the display panel can be adjusted from the first position to the second position by means of a control circuit, wherein the control circuit can receive a first control signal from an electronic control unit of the vehicle. The electronic control unit can send the first control signal to the control circuit, for example when the vehicle is parked. Upon receiving the first control signal, the control circuit can actuate an actuator of the support device, which in turn can enable the display panel to be adjusted from the first position to the second position. In addition, the first control signal can allow / enable the output of at least one graphic display object so that the information displayed by the graphic display object can be known by multiple people or users outside the vehicle.

[0010] According to the invention, the control circuit is adapted to enable the display of at least one graphical display object such that the information presented by the at least one graphical display object is displayed in dependence on a predetermined physical environment condition. The control circuit may receive a second control signal from an electronic control unit of the vehicle, wherein the second control signal may include information about the predetermined physical environment. This is advantageous because it enables the form of the information presented by the at least one graphical display object to be selected in dependence on the predetermined physical environment condition. The predetermined physical environment condition may be, for example, the presence of a selected person outside the vehicle, weather conditions outside the vehicle, traffic conditions or the position of the vehicle. Thus, an effective display of the information presented by the at least one graphical display object may be achieved.

[0011] In addition, the display panel can be adjusted from the second position to the first position by means of a control circuit, wherein the control circuit can receive a third control signal from the electronic control unit. For example, when the vehicle is started or the door of the vehicle is unlocked, the electronic control unit can send the third control signal to the control circuit. Upon receiving the third control signal, the control circuit can actuate the actuator of the supporting device, which in turn can enable the display panel to be adjusted from the second position to the first position. In addition, the third control signal can allow / enable the output of at least one graphic display object, so that the information displayed by the graphic display object can be known to the user inside the vehicle. Therefore, effective and automatic adjustment of the display panel from the first position to the second position and from the second position to the first position can be achieved.

[0012] The invention also includes embodiments that provide features that have additional technical advantages.

[0013] In one embodiment, when the display panel is in the second position, the predetermined physical environmental condition can be based on: the identification of the presence of a user outside the vehicle within a predetermined threshold distance from the display device, as indicated by a signal emitted by a proximity sensor. The proximity sensor can be a capacitive sensor or a photoelectric sensor or an inductive proximity sensor or an ultrasonic sensor or a radar sensor. Such a proximity sensor can be mounted on the outer surface of the vehicle so that when the user or multiple people are located outside the vehicle or close to the display device within a predetermined distance, the presence of the user or multiple people can be identified, and a proximity signal can be sent from the corresponding proximity sensor to the control circuit. The control circuit can then realize the display of at least one graphic display object on the display panel, wherein the display panel can be in the second position. This is advantageous because it can be realized that the display panel is activated only when the user or multiple people are close to the display device. Therefore, it can be ensured that the information displayed by the at least one graphic display object is visually accessible to the user or multiple people only when the user or multiple people are close to the vehicle or within a predetermined threshold distance. This ensures energy saving because the display panel is only turned on or activated when a user or multiple people are close to the display device, rather than continuously turning on the display panel even when no one is in front of the display device or everyone is away from the display device, in which case no one outside the vehicle can obtain the information displayed by the display panel.

[0014] In one embodiment, the display panel is in the second position, and the information displayed by at least one graphical display object can be a predetermined text message, which includes a personal message related to the predetermined user, as shown by a signal sent by a facial recognition sensor and / or a receiver for receiving an identification signal from a mobile device. In other words, the facial recognition sensor or other machine vision processing sensor can be used to identify people or predetermined users near the vehicle. In addition, the data of the predetermined user can be pre-stored in the control circuit of the vehicle. In addition, the predetermined user can be identified by a receiver, which can be part of an electronic control unit, so that when the predetermined user approaches the vehicle, an identification signal is sent from his mobile device, such as through his smartphone, in a Bluetooth manner, thereby identifying the predetermined user. When the predetermined user is identified, a predetermined text message including a personal message can be displayed on the display panel of the display device in the second position. For example, such a personal message can be a welcome message from a predetermined user, such as Arthur. In this way, when the predetermined user approaches the vehicle, the display panel can display a text message, such as "Welcome, Arthur". The advantage can also be that a specific personal message that is only to be displayed to a specific predetermined user can be displayed only to the specific predetermined user, and not to anyone else. This can achieve security and privacy.

[0015] In one embodiment, the control circuit may be adapted to inhibit the display panel from displaying the personal message after expiration of a predetermined time period and / or upon receipt of a communication signal from the intended user that the display of the personal message is no longer required and / or upon identification that the intended user is no longer in proximity to the display device. This is advantageous because it allows the information presented by the at least one graphic display object to be displayed to the intended user in such a way that the personal message is not displayed to anyone other than the intended user. Thus, privacy in the communication of the personal message may be established. It is also conceivable that the control circuit may be adapted to inhibit the display of the graphic display object on the display panel after expiration of the predetermined time period.

[0016] In one embodiment, the display panel is in the second position, and the information displayed by the at least one graphical display object may be a scheduled parking time for which the control circuit has triggered a digital payment. In other words, when a parking location is found at the parking location, the vehicle may be driven to the parking location and parked. When the vehicle is parked, the control circuit may identify the parking of the vehicle through a global positioning system (GPS) unit, which may provide the location of the parking location, or indicate the parking of the vehicle by identifying that the vehicle engine has stopped for a predetermined period of time. When the vehicle is parked, the control circuit may then send a login signal to the parking server unit to notify the parking server unit that the vehicle has been parked, and at the same time trigger a digital payment to the parking server unit to obtain a digital parking ticket. In addition, when the vehicle is parked, the control circuit may be triggered to adjust the display panel to the second position so that the display panel can be visually accessible to a person or user outside the vehicle. In this case, the information displayed by the at least one graphical display object may be in the form of a scheduled parking time. The scheduled parking time may include the time the vehicle is parked and the amount of time remaining from the amount of time allowed for parking according to the digital parking ticket.

[0017] In one embodiment, when the display panel is in the second position, the information displayed by at least one graphic display object can be an informational message and / or advertisement based on a predetermined physical environment condition. In addition, the physical environment condition can be based on the current position of the vehicle and / or the physical environment of the vehicle and / or a weather report as shown by the signal sent by the back-end server unit. In other words, based on the current physical environment of the vehicle or the current surrounding environment of the vehicle at a certain point in time, the information displayed by the display panel can be selected so that the informational message or advertisement displayed by the display panel can correspond to the surrounding environment or environmental conditions of the vehicle at that specific time. For example, if the vehicle is parked at a parking place near a school, the control circuit can identify the location with the help of a global positioning system unit. At this point in time, the back-end server unit can send a signal about the current weather to the control circuit, such as the weather is clear and warm, in which case the control circuit can enable the display panel to display an ice cream advertisement. Because in the current situation of the weather and the location of the vehicle parked near the school, the ice cream advertisement can provide a suitable platform or market for the company or enterprise corresponding to the ice cream advertisement to achieve market sales, thereby obtaining economic benefits.

[0018] In one embodiment, in the case where the display device is in the second position, the information of at least one graphical display object may include an identification code indicating that the vehicle is booked in a reservation system. For example, the vehicle may be used as a car sharing vehicle, so that the vehicle can be used by multiple users. The user may decide to use his vehicle or rent his vehicle as a car sharing vehicle when parking his vehicle. In this case, the user may connect to the backend server unit of the car sharing company by means of his display device. The user may log in to his user profile of the car sharing company via the display device in the first position, in which case a registration signal may be sent from the control circuit to the backend server unit of the car sharing company, indicating that the vehicle is available as a car sharing vehicle. Upon receiving the registration signal, the backend server unit may send an identification signal to the control unit. After receiving the identification signal, the information of at least one graphical display object may include an identification code 34 indicating that the vehicle is booked in a reservation system, for example, in the reservation system of a car sharing company. This is advantageous because it enables the vehicle to be identified as a car sharing vehicle by an identification number, which may change at each booking, which in turn is advantageous for security and privacy purposes.

[0019] In one embodiment, the control circuit receives an identification signal based on a reservation code corresponding to the identification code, and based on the identification code, the control circuit can be designed to send a vehicle activation signal to an electronic control unit, which controls the accessibility of the vehicle. In other words, the user can send an identification signal to the control circuit through his smartphone based on the reservation code when identifying the vehicle by viewing the identification code on the display panel. Upon receiving the identification signal, the control circuit can send a vehicle activation signal to the electronic control unit. The electronic control unit can allow the user to approach the vehicle when receiving the vehicle activation signal. The electronic control unit can enable the vehicle door lock unit to be unlocked so that the user can enter the vehicle, and the electronic control unit can enable the user to access other devices in the vehicle, so that the user can use the vehicle according to his needs. This is advantageous because it enables the vehicle to be effectively used as a car sharing vehicle. In addition, it is conceivable that the user can provide a digital payment to the car sharing company with the help of his smartphone, and the car sharing company can then transfer part of the payment to the owner of the vehicle.

[0020] In one embodiment, the display panel can be rotatably attached to a support device, wherein the display panel can be rotated between a first position and a second position about an axis parallel to a major edge of the display panel. This is advantageous because it allows the support device to be constructed in a simplified and economical manner. In addition, the support device can form a strong structure so that the display panel can be easily rotated from the first position to the second position. For example, a user can rotate the display panel from the first position to the second position when parking the vehicle, so that multiple people or users outside the vehicle can visually access the display panel.

[0021] The present invention also provides a method for operating a display device, the display device comprising a display panel for displaying information presented by at least one graphic object, so that the display panel can be adjusted between a first position and a second position. The method realizes display of at least one graphic display object by means of a control circuit of the display device, so that the information presented by the at least one graphic object is displayed according to a predetermined physical environment condition.

[0022] If not stated otherwise, the invention also comprises every combination of features of the described embodiments. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] The following describes an exemplary embodiment of the present invention. The accompanying drawings show:

[0024] Figure 1 is a schematic diagram of an embodiment of a display device in a vehicle, wherein a display panel is in a first position;

[0025] Figure 2 is a schematic diagram of an embodiment of a display device in a vehicle, wherein the display panel is in a second position;

[0026] Figure 3 is a schematic diagram of the display device viewed from outside the vehicle, wherein the display panel is in the second position; and

[0027] Figure 4 is a framework diagram of an embodiment of a display device. DETAILED DESCRIPTION

[0028] The embodiment described below is a preferred embodiment of the present invention. However, in this embodiment, the components described in this embodiment represent individual features of the present invention, which should be considered to be independent of each other and also develop / embody the present invention independently of each other, so they should also be considered to constitute components of the present invention in a separate manner or in a manner different from the combination shown. In addition, the described embodiment can also be supplemented by other features of the present invention that have been described.

[0029] In the drawings, the same reference numerals denote elements providing the same function.

[0030] Figure 1 A schematic diagram of an embodiment of a display device 10 is shown, wherein an interior view of an interior area 11 of a vehicle 12 is depicted. The vehicle 12 may be a motor vehicle, such as a passenger car. The vehicle 12 may include an assisted driving system (not shown in the figure), which may provide, for example, an automated driving function. In other words, the assisted driving system may drive the vehicle 12 autonomously or fully automatically. The vehicle 12 may also include an electronic control unit 13, which may be designed to operate other devices within the vehicle 12.

[0031] like Figure 2 As shown, a display device 10 having a first side 14 and a second side 15 includes a display panel 16, which is designed to display at least one graphic display object 17. The display panel 16 may be a liquid crystal display panel (LCD). The display device 10 may also include a control circuit 18, which may be designed to allow / implement the display of the at least one graphic display object 17. In addition, the display device 10 may include a support device 19, which may be designed to support the display panel 16. The display panel 16 can be adjusted between a first position P1 and a second position P2, wherein in the first position P1, at least one graphic display object 17 on the display panel 16 is visually accessible to a user (not shown) inside the vehicle 12, and in the second position P2, at least one graphic display object 17 on the display panel 16 is visually accessible to at least one person and / or a user among multiple people (not shown) outside the vehicle, such as Figure 3 As shown. Figure 3As shown, the graphic display object 17 can be visible from the outside of the vehicle 12, such as through the windshield 20 of the vehicle 12. The display device 10 may include a housing 21 that can surround and protect the display panel 16. In addition, the housing 21 can form the second side 15 of the display device 10, such as Figure 2 The display device 10 may be rotatably attached to the support device 19 , wherein the display panel 16 may be rotated about an axis parallel to the main edge 22 of the display panel 16 between a first position P1 and a second position P2 .

[0032] The support device 19 may include two support structures 24, such that each support structure 24 may be connected or attached to the housing 21 at one auxiliary side 23 of the display panel 16, respectively. Each support structure 24 may include a first end 25 and a second end 26, such that each support structure 24 is integrated into a dashboard 27 of the vehicle 12 at the first end 25. The second end 26 of each support structure 24 may be attached to the housing 21 at one auxiliary side 23, respectively, such that the second end 26 of each support structure 24 may be rotatably connected to the housing 21 at one auxiliary side 23, respectively. For example, a user may be sitting inside the vehicle and may view information displayed by at least one graphic display object 17 on the display panel in the first position P1. When the user parks the vehicle 12 and decides to move out of the vehicle 12, in this case, the user may rotate the display device 10 around the second end 26 of the support structure 24, such that the display device 10 is adjusted to the second position P2. In this case, the information displayed by the graphic display object 17 on the display panel is visually accessible to the user and / or at least one of the plurality of people outside the vehicle 12.

[0033] The control circuit 18 may be adapted to implement the display of the at least one graphic display object 17 in such a way that the information presented by the at least one graphic display object 17 may be displayed according to predetermined physical environmental conditions. When the display panel 16 is in the first position P1, the information presented by the at least one graphic display object 17 may be a navigation route and / or information about the weather and / or a selection of a song playlist from a music system and / or a selection of a radio station and / or a setting of the audio volume and / or a setting of the air conditioning system, so that the user or multiple persons sitting inside the vehicle may access / obtain the necessary information presented by the graphic display object 17 on the display panel 16 for safe and comfortable driving.

[0034] When the display panel 16 is in the second position P2, the predetermined physical environment condition may be based on: the recognition of the presence of a user or at least one of the plurality of people within a predetermined threshold distance from the display device 10 outside the vehicle 12, as indicated by a signal emitted by a proximity sensor (not shown). In addition, when the display panel 16 is in the second position P2, the information displayed by the at least one graphical display object 17 may be a predetermined text message, including a personal message related to a predetermined user, as indicated by a signal emitted by a facial recognition sensor (not shown) and / or a receiver for receiving an identification signal from a mobile electronic device.

[0035] The control circuit 18 may be adapted to inhibit the display panel 16 from displaying the personal message after expiration of a predetermined time period and / or upon receiving a communication signal from the predetermined user that the display of the personal message is no longer required and / or upon recognizing that the predetermined user is no longer in proximity to the display device 10, e.g. Figure 3 "XYZ" shown.

[0036] Furthermore, when the display panel 16 is in the second position P2, the information displayed by the at least one graphic display object 17 may be a scheduled parking time for which the control circuit 18 has triggered the digital payment. Furthermore, when the display panel 16 is in the second position P2, the information displayed by the at least one graphic display object 17 may be an informational message and / or advertisement based on a predetermined physical environment condition, wherein the physical environment condition is based on the current position of the vehicle 12 and / or the physical environment of the vehicle 12 and / or a weather report, as indicated by a signal sent by the backend server unit 28, see Figure 4 .

[0037] The vehicle 12 can be used as a car sharing vehicle, so that after parking the vehicle 12 in the parking position, the user can log in to the website of the car sharing company through the display panel 16. In addition, when parking, the user can then turn the display panel 16 to the second position P2. The control circuit 18 can send a registration signal 30 to, for example, a back-end server unit 28 of the car sharing company based on the information, as shown by arrow 31. The back-end server unit 28 can send an identification signal 32 to the control circuit 18 based on receiving the registration signal 30, as shown by arrow 33. After receiving the identification signal 32, the information of at least one graphic display object 17 includes an identification code 34, which indicates that the vehicle 12 is reserved in, for example, a reservation system of the car sharing company.

[0038] Another user may log in to the car sharing company website with the aid of a computing device such as a smartphone 29 so that an available vehicle may be reserved. When the user or the user's smartphone 29 logs in, a reservation signal 35 may be received from the backend server unit 28, as indicated by arrow 36. After receiving the reservation signal 34, the user's smartphone 29 may display a reservation code 37, which may include information about the coordinates of the parking location of the vehicle 12 and the identification code 34, which will be displayed on the display panel 16 of the vehicle 12, and the user may proceed to the parking location of the vehicle 12. When arriving at the parking location, the user may identify the vehicle 12 by viewing the identification code 34 on the display panel 16.

[0039] Then, the user can send an identification signal 38 to the control circuit 18 by means of his smartphone 29 based on the reservation code 37, and the identification signal 38 can be received by the control circuit 18, as shown by arrow 39. The identification signal 38 can be received by the control circuit 18 from the user's smartphone 29 by means of a wireless connection. Upon receiving the identification signal 38, the control circuit 18 can send a vehicle activation signal 40 to the electronic control unit 13, as shown by arrow 41, and the electronic control unit 13 can allow the user to approach the vehicle 12 upon receiving the vehicle activation signal 40. In addition, the control circuit 18 can send the vehicle activation signal 40 to the back-end server unit 28, as shown by arrow 42, so that the user as the owner of the vehicle 12 can receive information that the vehicle 12 has been used by another user by means of a signal or message that can be received by his smartphone. When the vehicle activation signal 40 is received from the control circuit 18 of the display device 10, the signal or message can be sent by the back-end server unit 28.

Claims

1. A display device (10) for a vehicle (12), comprising: a display panel (16) configured to display at least one graphic display object (17); a control circuit (18) designed to implement the at least one graphic display object (17); as well as A support device (19) is configured to support a display panel (16), wherein: The display panel (16) is adjustable between a first position (P1) and a second position (P2), The at least one graphical display object (17) on the display panel (16) is visually accessible to a user inside the vehicle (12) in a first position (P1), and the at least one graphical display object (17) on the display panel (16) is visually accessible to the user and / or to at least one person outside the vehicle (12) in a second position (P2), wherein the control circuit (18) is adapted to realize the display of the at least one graphic display object (17) in such a way that the information presented by the at least one graphic display object (17) is displayed according to predetermined physical environment conditions, wherein the support device (19) is designed to support the display panel in a first position (P1) in such a way that the display panel (16) is visually accessible to a user inside the vehicle, and the support device (19) is designed to adjust the position of the display panel to a second position (P2) so that the display panel (16) is visible from outside the vehicle, wherein the display panel (16) is rotatably attached to the support device (19), wherein the support device (19) comprises two support structures (24), each support structure (24) being connected or attached to a housing (21) of the display device (10) at an auxiliary side (23) of the display panel (16), respectively, so that the display panel (16) can be rotated between the first position (P1) and the second position (P2) around an axis parallel to a main edge (22) of the display panel (16), The display panel (16) can be adjusted from the second position (P2) to the first position (P1) with the help of a control circuit (18), wherein the control circuit (18) is suitable for receiving a third control signal from an electronic control unit (13), and the control circuit (18) is designed to actuate an actuator of a support device (19) when receiving the third control signal, which in turn enables the display panel (16) to be adjusted from the second position (P2) to the first position (P1), wherein the electronic control unit (13) is designed to send the third control signal to the control circuit (18) when the vehicle (12) is started or the door of the vehicle (12) is unlocked.

2. The display device (10) according to claim 1, wherein: With the display panel (16) in the second position (P2), the predetermined physical environmental condition is based on: the identification of the presence of a user outside the vehicle (12) within a predetermined threshold distance from the display device (10), as indicated by a signal from a proximity sensor, and The display panel is activated only when a user is outside the vehicle (12) and within a predetermined threshold distance from the display device (10).

3. The display device (10) according to claim 1 or 2, wherein: When the display panel (16) is in the second position (P2), the information displayed by at least one graphic display object (17) is a predetermined text message, the predetermined text message including a personal message related to a predetermined user, the personal message being indicated by a signal emitted by a facial recognition sensor and / or a receiver for receiving an identification signal from a mobile device.

4. The display device (10) according to claim 3, wherein: The control circuit (18) is adapted to inhibit the display panel (16) from displaying the personal message after a predetermined time period has expired and / or upon receiving a communication signal from the predetermined user indicating that display of the personal message is no longer required and / or upon recognizing that the predetermined user is no longer in proximity to the display device (10).

5. The display device (10) according to claim 1 or 2, wherein: When the display panel (16) is in the second position (P2), the information presented by the at least one graphical display object (17) is a scheduled parking time for which digital payment has been triggered by the control circuit (18).

6. The display device (10) according to claim 1 or 2, wherein: When the display panel (16) is in the second position (P2), the information displayed by at least one graphic display object (17) is an informational message and / or advertisement based on a predetermined physical environmental condition, wherein the physical environmental condition is indicated by a signal sent by a back-end server unit (28) and is based on the current position of the vehicle (12) and / or the physical environment and / or weather of the vehicle (12).

7. The display device (10) according to claim 1 or 2, wherein: When the display panel (16) is in the second position (P2), the information presented by the at least one graphical display object (17) includes an identification code (34) indicating a reservation of the vehicle (12) in the reservation system.

8. The display device (10) according to claim 7, wherein: The control circuit (18) receives an identification signal (38) based on a reservation code (37) corresponding to the identification code (34), and the control circuit (18) is designed to send a vehicle start signal (40) to an electronic control unit (13) based on the identification signal (38), and the electronic control unit controls the accessibility of the vehicle (12).

9. A method for operating a display device (10) according to any one of claims 1 to 8, wherein: A control circuit (18) of a display device (10) realizes the display of at least one graphic display object (17) in such a way that information presented by the at least one graphic display object (17) is displayed according to predetermined physical environmental conditions.

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