Method for managing the display of a touch screen of a user interface for a motor vehicle

Abstract

Method for managing the display of a touch screen of a user interface embedded in a motor vehicle, said method implemented by a device for managing the display of said screen, consisting when first and second portable terminals belonging respectively to first and second users are detected (500) in the vehicle, in identifying (510) one of the users as the driver of the vehicle and the other as a front passenger of the vehicle, and in configuring (520) the touch screen in the form of two adjacent independent display areas capable of each rendering a content determined for each user, by selecting (530) for each of the two display areas, a preferred display configuration option chosen (540) beforehand by each of the two users, from a dedicated mobile application on their respective portable terminals. (Figure 5)

Description

Title of the invention: Method for managing the display of a touch screen of a user interface for a motor vehicle

[0001] The present invention relates generally to the field of user interfaces also referred to as human-machine interface, or HMI, comprising one or more touch screens with multiple display configurations and relates more particularly to a method for managing the display of a touch screen of a user interface for a motor vehicle from personalized configurations of different users, predefined on their respective portable terminals.

[0002] In the ever-evolving automotive industry, vehicle customization is a major area of ​​differentiation and improvement of the user experience. Currently, some solutions exist to allow users to configure certain features of their vehicle. These features, while beneficial, are limited in their ability to offer a truly tailored and personalized experience for each user.

[0003] Known in particular from the unpublished patent application FR2400584 filed by the applicant on 22 01 2024, is a method for controlling the configuration of a display on a user interface in a motor vehicle passenger compartment, from a mobile application hosted on a portable terminal (smartphone) held by a user of the vehicle, by displaying the selected parameters and hiding the non-chosen parameters and this according to a type of journey chosen by the user so that each type of journey corresponds to a predefined and preferred display configuration, on a touch screen of the user interface.

[0004] However, this method does not address the case where a passenger other than the driver of the vehicle and in particular a front passenger of the vehicle, wishes to share the user interface of the vehicle and therefore the touch display screen with his own usage preferences also referred to as a “user profile”.

[0005] The present invention aims to overcome these drawbacks in particular by proposing a solution allowing efficient and easy customization of the configuration of a vehicle by two users: the driver and a front passenger of a motor vehicle, according to the preferences of the users.

[0006] To this end, the present invention has as its first object a method for managing the display of a touch screen of a user interface embedded in a motor vehicle, said method implemented by a device for managing the display of said screen, consisting when first and second portable terminals belonging respectively to first and second users are detected in the vehicle, to identify one of the users as the driver of the vehicle and the other as a front passenger of the vehicle, and to configure the touch screen in the form of two independent and adjacent display areas, each capable of rendering content determined for each user, by selecting for each of the two display areas, a preferred display configuration option previously chosen by each of the two users, from a dedicated mobile application on their respective portable terminals.

[0007] According to one characteristic, the method consists of configuring the touch screen from the dedicated mobile application offering each user several configuration options allowing each user to associate at least one preferred display configuration, called user preference, with at least one determined type of journey, defined from the detection of a navigation instruction issued by a user.

[0008] According to another characteristic, the method consists, when a navigation instruction defining a journey to be made has been detected, in determining, for each user at least one user preference, relating to a determined function of the vehicle, from personalization data associating said at least one user preference with said journey and, in displaying a preferred configuration option for each user, selectable by default, to configure said function according to said at least one user preference of each user.

[0009] According to another characteristic, the method consists, in order to determine said at least one user preference of each user, in consulting a database in which the personalization data of each user are pre-recorded.

[0010] According to another characteristic, the method consists, prior to the detection of the navigation instruction, in receiving, from the portable terminal of each user, a personalization command defining, for said journey, said at least one user preference of each user relating to a function of the vehicle and, in recording, as personalization data, said at least one user preference of each user in association with said journey.

[0011] According to another characteristic, said at least one user preference of each user defines a preferred setting of a function of the vehicle from among a plurality of possible settings.

[0012] According to another characteristic, the method consists of selecting a preferred configuration option, representative of at least one driver preference from among a plurality of alternative configuration options for a first determined function, selecting a preferred configuration option, representative of at least one front passenger preference, from among a plurality of alternative configuration options of a second determined function and displaying the configuration options. preferred configuration while hiding every other alternative configuration option of a function for each of the first and second users.

[0013] According to another characteristic, the method consists of selecting from among the preferred or alternative display configuration options, at least one configuration option compatible with a display of two distinct contents on the touch screen intended respectively for the first and second users.

[0014] The second subject of the present invention is a computer program product comprising instructions for implementing the method as described above, when these instructions are executed by a processor.

[0015] The third subject of the present invention is a motor vehicle comprising a device for managing the display of a touch screen of a user interface of the vehicle, implementing a method as described above.

[0016] Other advantages and characteristics of the present invention may emerge more clearly from the description which follows, given solely by way of non-limiting example and made with reference to the drawings in which:

[0017] [Fig-1] schematically illustrates the interior of a motor vehicle passenger compartment incorporating a touch screen of a user interface and a device for managing the display of the screen implementing the method according to the invention;

[0018] [Fig.2] illustrates an example of the first display configuration option “ preferred” chosen by the driver of the vehicle;

[0019] [Fig.3] illustrates an example of a second display configuration option “ alternative” chosen by the driver of the vehicle;

[0020] [Fig.4] illustrates an example of a display configuration shared by the driver of the vehicle and a front passenger of the vehicle; and

[0021] [Fig.5] illustrates a flowchart of the main steps of the method according to the invention.

[0022] The present description is based on the exemplary embodiment described in the unpublished patent application FR2400583, already introduced in the preamble to the present description.

[0023] The present invention exploits the detection of portable electronic terminals, inside the motor vehicle, in particular smartphones, tablets, or others, held by different users present in the vehicle, and more precisely the portable terminals of the driver and a front passenger.

[0024] When two portable terminals are detected in the vehicle and identified, one belonging to the driver and the other belonging to a front passenger, the method consists of configuring the user interface embedded in the passenger compartment of the vehicle in the form of two adjacent independent touch screen zones, by exploiting for each of the two zones, a chosen “preferred” configuration option previously by each of the two users, from a dedicated mobile application on their respective portable terminals.

[0025] Advantageously, the arrangement of the display area or areas can be configured according to the types of journeys and the number of users.

[0026] The user chooses his preferred configuration parameters once from his portable terminal and which are then displayed in the form of active shortcuts or “shortcuts” arranged in the form of touch control buttons, with direct access on the display area of ​​the touch screen allocated to him, accompanied by one or more thumbnails, vignettes or even “widgets” in English terminology, relating to the function of the vehicle to be controlled; the other available parameters are then hidden or inactive.

[0027] When a passenger's portable terminal (for example a smartphone) is detected by an infotainment system of the vehicle, for example via a Bluetooth type wireless connection between the portable terminal and the infotainment system, and the user of the portable terminal is identified by a recognition system, in this case when the driver enters the vehicle, the driver's portable terminal is detected and the management device displays a "default" configuration option of the touch screen in relation to a "preferred" configuration option (user preference) of the driver previously defined by the driver from the dedicated mobile application.

[0028] When a second portable terminal, for example a second smartphone, is also detected and its holder identified, in this case the portable terminal of a front passenger, in this case, the display screen of the user interface is divided into two display areas on the touch screen: a first display area for the driver and a second display area for the passenger.

[0029] It is obviously necessary beforehand for the users to have configured their preferences via the mobile application of their respective portable terminals and for the driver's and passenger's portable terminals to have been previously paired with the vehicle, via the vehicle's infotainment system, being respectively identified as the driver's portable terminal and the front passenger's portable terminal.

[0030] Such identification can be carried out by different methods, in particular by pre-recording the authentication elements of each portable terminal and assigning them as, respectively, the driver's portable terminal and the passenger's portable terminal in a memory (or a database) coupled to the display management device, embedded in the vehicle or belonging to a remote server and coupled by waves with the display management device. Another more direct method consists, for example, in coupling a seat sensor (driver's seat and passenger seat) with Bluetooth detection of a portable terminal or via volumetric / spatial detection type recognition and / or facial recognition, etc.

[0031] In addition, one of the passengers, generally the driver of the vehicle, can also predefine, from the dedicated mobile application on his portable terminal, different display configurations depending on the type of journey which will have been defined by a navigation system of, or in relation to, the vehicle following a navigation instruction operated by the display management device.

[0032] For example, he can choose a first user interface configuration option to display a single display area on the touch screen according to a determined arrangement for home-work journeys or a second configuration with two display areas for main home-secondary home journeys.

[0033] The second configuration option (with two display areas dedicated to the driver) is reduced to a single “driver” display area when a front passenger is detected to divide the available screen display area into two adjacent and independent display areas.

[0034] [Fig.l] schematically illustrates a VHL vehicle incorporating a DGA display management device and an ITU user interface, coupled to an infotainment system INF of the VHL vehicle.

[0035] As illustrated in the embodiment of [Fig.l], the user interface ITU comprises a touch screen ECT configured to display a first content CTI intended for a first user UR1, mainly the driver of the VHL vehicle, and a second content CT2 intended for a second user UR2 of the VHL vehicle, mainly a front passenger of the VHL vehicle. The first and second users UR1 and UR2 cohabit in the same passenger compartment HAB of the VHL vehicle and are able to control at least tactilely the touch screen ECT from their respective seats SGI, SG2.

[0036] The user interface ITU is configured to operate under the control of the display management device DGA. The touch screen ECT can implement any suitable display technology, coupled with a touch layer, or interface, to visually render first and second contents CTI, CT2 intended respectively for the first and second users UR1, UR2.

[0037] The vehicle VHL is furthermore capable of executing at least one distinct function (or functionality, or application) per user UR1, UR2, according to a first display configuration option for the first user UR1 and a second display configuration option for the second user UR2, which can be adapted as appropriate as described below with reference to FIGS. 2 to 4.

[0038] The nature of these functions may vary depending on the case. For the purpose of simplifying the description of the invention, and unless otherwise indicated, it is hereinafter considered that a single function per user UR1, UR2 is managed by means of the invention, although it is of course possible to similarly manage a plurality of functions executable by all or part of the vehicle VHL.

[0039] According to one example, the functions comprise at least one of:

[0040] - a function of the infotainment system of the VHL vehicle;

[0041] - a vehicle ambient lighting function VHL; and

[0042] - a function of a massage system integrated into one or both of the two SGI, SG2 seats of the VHL vehicle.

[0043] Other types of functions are, however, possible (seat heating function, electric seat adjustment function, etc.) provided that the functions do not interfere with each other. This could be the case, for example, for the choice of ambient lighting inside the VHL vehicle, the choice of ambient temperature, the choice of multimedia content for broadcasting in the speakers of the VHL vehicle, etc. In which case, it is the function associated with the driver UR1 which prevails; the driver UR1 remaining the main user of the VHL vehicle.

[0044] The functions can be executed according to determined configuration options. These configurations can be adapted according to a choice of configurations made by the user UR1 and the user UR2 by means of the ITU user interface and for a determined route.

[0045] To do this, the DGA display management device is configured to detect a navigation instruction generally issued by the main user of the vehicle: the URL driver. This navigation instruction defines a specific route to be taken. In other words, this navigation instruction identifies a predefined route.

[0046] As an example, the navigation instruction defines a “home-work” journey as a journey to be made, i.e., a journey from the home of user UR1 to his or her usual place of work. According to another example, the journey corresponds to a “main home-secondary home” journey, i.e., a journey from the main home of user UR1 to his or her secondary home.

[0047] This navigation instruction can for example be sent from the ITU user interface to an on-board navigation system (not shown) of the VHL vehicle. The navigation system is for example a GPS system (for “Global Positioning System”) comprising a navigation function for providing navigation instructions to the driver (user UR1) of the VHL vehicle.

[0048] The DGA display management device is capable of exploiting the navigation instruction, and therefore the route, thus sent from the ITU user interface for determine at least one user preference relating to the function of the VHL vehicle (ambient lighting, massage, etc.), from determined personalization data associating a user preference UR1, UR2 with said journey: home-office journey for user UR1 and main home-secondary home journey by one or both users UR1, UR2, for example).

[0049] In other words, the display management device DGA can use the personalization data to determine a user preference for each user UR1, UR2, associated with said journey. These user preferences specify a configuration according to which the function chosen by each user UR1, UR2 must be carried out when the journey is carried out (for example, the intensity, the color for the ambient lighting, the seat temperature, the massage program, ...).

[0050] These user preferences can be predefined by the users UR1, UR2 by means of a portable terminal T1, T2, held by each user UR1, UR2, identified and authenticated, so that these user preferences UR1, UR2 are accessible by the display management device DGA. These user preferences UR1, UR2 represent the way in which the users UR1, UR2 wish the functions that they have respectively chosen to be executed on board the vehicle VHL when the journey is, or must be, carried out.

[0051] The prior storage of the personalization data associating the user preferences UR1, UR2 with the journey can be carried out in various ways. As illustrated in [Fig.l], the personalization data are for example pre-recorded in an MDP memory, taking for example the form of a database, accessible by the display management device DGA. According to a particular example, the MDP memory is on board the VHL vehicle. According to another example, not illustrated, the MDP memory is a memory belonging to, or hosted in, a remote server of the VHL vehicle and accessible by radio waves via appropriate communication means, not shown.

[0052] The portable terminals T1, T2 of the users UR1, UR2 may be any suitable portable terminals (smartphones, tablets, etc.) allowing the users UR1, UR2 to each predefine at least one user preference relating to a determined function of the VHL vehicle (ambient lighting, massage, etc.) and chosen by each user UR1, UR2 in association with a determined journey: home-work journey or main home-secondary home journey. These portable terminals T1, T2 may allow the users UR1, UR2 to specify, remotely from the VHL vehicle, the personalization data in the MDP memory, for example from their home or another location.

[0053] The ECT touch screen of the ITU user interface is configured to display first and second CTI, CT2 contents to, respectively, the users UR1 and UR2 when two portable terminals Tl, T2 were detected and authenticated and the holders of the two portable terminals Tl, T2 were identified respectively, one UR1 as the driver of the vehicle and the other UR2, as a front passenger of the VHL vehicle.

[0054] As indicated previously, the display management device DGA is capable of adapting a display configuration option on the touch screen ECT of the user interface ITU according to the preferences of the users UR1, UR2 (or user preferences) but also according to the number of users detected in the passenger compartment HAB of the vehicle VHL.

[0055] The display management device DGA is coupled to the infotainment system INF of the vehicle VHL and it is capable of recovering the identification data of each portable terminal T1, T2 detected and their assignment as portable terminal T1 of the driver UR1 or as portable terminal T2 of the front passenger UR2.

[0056] The DGA display management device is also capable of retrieving the navigation instructions defining a determined route as already described above.

[0057] The display management device DGA can in particular cause the display of a preferred configuration option to configure the function chosen by each user UR1, UR2 according to the personalization data associating a journey with the user preferences of each user UR1, UR2 relating to the function chosen by each user UR1, UR2.

[0058] This preferred configuration option is selectable by default. In other words, upon detection that the journey must be made, the display management device DGA causes the preferred configuration option to be displayed by default to propose to each user UR1, UR2 to configure the function of the vehicle VHL chosen by each user UR1, UR2 according to the user preference, of each user UR1, UR2 in accordance with the personalization data.

[0059] A user preference defines for example a preferred setting of the VHL vehicle function chosen by the user UR1 or UR2 from a plurality of possible settings.

[0060] From the information retrieved from the infotainment system INF, the display management device DGA manages the user interface ITU causing a display of a preferred configuration option which is selectable by default to configure the function chosen by each user UR1, UR2 according to the preference of each user UR1 or UR2. This preferred configuration option can be presented in various forms, depending on the number of users and the readability of the content(s) for the user(s).

[0061] As illustrated in [Fig.2], when a single user UR1 (the driver) is detected and identified, a first CGI “preferred” configuration option for the conductor UR1 can take, for example, the form of a first determined graphical interface IG1, filling the useful surface of the touch screen ECT or partially filling the useful surface of the touch screen ECT by being for example substantially centered in the screen ECT or offset towards the conductor UR1.

[0062] In the example considered in [Fig.2], the graphical interface, IG1 representative of the first “preferred” configuration option CGI of the driver UR1, associated with the chosen function, is centered in the touch screen ECT. It comprises a thumbnail IMG, or “widget” in English terminology, of generally rectangular shape representative of the chosen function and two rows of two adjacent blocks, also of generally rectangular shape, extending parallel to each other under the thumbnail IMG. Each block defines a shortcut RAC, or “shortcut” in English terminology, corresponding to a parameter of the chosen function. Each RAC block corresponds to a control touchpad which, when active, allows the chosen function to be adjusted. The RAC block carries, for example, a pictogram, not shown, allowing the associated adjustment parameter to be identified.

[0063] The display management device DGA selects the first “preferred” configuration option CGI, representative of the user preference UR1 determined from a plurality of possible configuration options of the chosen function, from the dedicated mobile application on the portable terminal T1 of the user URL. Each possible configuration option corresponds to (or represents) a respective setting, or a respective configuration, of said function. It is assumed for example that among the plurality of possible configuration options, there exists at least one second “alternative” configuration option CG2, that is to say a possible configuration option other than the first “preferred” configuration option CGI.

[0064] This second “alternative” configuration option CG2 is illustrated by a second graphical interface IG2, illustrated in [Fig.3].

[0065] In this second “alternative” configuration option CG2, the second graphical interface IG2 renders the useful surface of the touch screen ECT in two adjacent display areas ZAG, ZAD, according to the width of the touch screen ECT, of the same dimensions. We find the same graphical content of the first graphical interface IG1 associated with the first “preferred” configuration option CGI, arranged in almost the entire right display area ZAD of the second graphical interface IG2 to which is added an adjacent image IMG, of generally rectangular shape, extending in almost the entire left display area ZAG.

[0066] The DGA display management device can then cause the ITU user interface to display the first "preferred" CGI configuration option while hiding (or blocking the display of) the second “alternative” configuration option CG2 of the chosen function.

[0067] In other words, the display management device DGA blocks the display of each “alternative” configuration option relating to the chosen function to display only the “preferred” configuration option, here CGI, in accordance with the user preference predefined by the user UR1. Thus, the display management device DGA advantageously makes it possible to personalize the content displayed by the user interface ITU by causing the display of the “preferred” configuration option CGI as the only configuration choice for the function among the possible “alternative” configuration options.

[0068] When a second user UR2 is detected and identified in the VHL vehicle, cohabiting with the first user UR1 in the passenger compartment of the VHL vehicle, in one of the ways indicated previously, the display management device DGA selects a third display configuration option CG3 on the touch screen ECT of the user interface ITU, associated with a third graphical interface IG3, making it possible to render distinct content for each of the two users UR1 and UR2, taking into account the “preferred” or “alternative” configuration options compatible with a “readable” display for each user UR1, UR2 on the touch screen ECT.A readable display means a display that takes into account the dimensions of the ECT touchscreen in relation to the “preferred” or “alternative” configuration options chosen by each user UR1, UR2 so that the content rendered by the graphical interface remains readable from the seats SGI and SG2 of the driver UR1 and the passenger UR2.

[0069] Thus, in the example considered in [Fig. 4], the display surface of the touch screen ECT of the user interface ITU is shared to define two separate half-screens EC1, EC2 respectively in the left ZAG and right ZAD zones of the touch screen ECT, adjacent in the width of the touch screen ECT; each half-screen EC1, EC2 rendering the same graphical interface reproducing, in this example, the same first graphical interface IG1 of the first “preferred” configuration option CGI of the user UR1 ([Fig. 3]).

[0070] The left half-screen EC1 is intended to restore a first content to the driver (user UR1) and the right half-screen EC2 is intended to restore a second content to the front passenger (user UR2), it being specified that in the example considered, the vehicle VHL is a vehicle with a steering wheel on the left.

[0071] By way of example, the left half-screen EC1, dedicated to the driver (user UR1), displays a first function chosen by the driver relating, for example, to the ambient lighting for a given journey, for example a journey from main home to secondary home, and the right half-screen EC2, dedicated to the front passenger (user UR2) displays a second function chosen by the front passenger relating for example to the temperature of his seat SG2, a massage program, multimedia content, or another function linked to the capabilities offered by the infotainment system INF of the vehicle VHL and authorized for a passenger of the vehicle other than the driver, etc.

[0072] It is understood that if the “preferred” configuration option for a function chosen with the determined journey cannot be displayed in the context with two half-screens EC1, EC2 (readability problem for example), it is one of the “alternative” configuration options compatible with this context which will be displayed in the half-screen of the driver UR1, the same for the front passenger UR2.

[0073] Thus, the configuration of the display of content in the form of a determined graphical interface can be adapted according to the number of users detected and identified in the HAB passenger compartment of the VHL vehicle.

[0074] The method according to the invention advantageously makes it possible to efficiently and easily personalize the configuration of the ECT touch screen for two users UR1, UR2 cohabiting in the VHL vehicle: the driver UR1 and a front passenger UR2.

[0075] It is thus possible to transform the personalization experience into an intuitive, pleasant process that is entirely adapted to the individual preferences and needs of two users UR1 and UR2 depending on the context of use of the VHL vehicle.

[0076] [Fig.5] illustrates a flowchart of the main steps of the method according to the invention.

[0077] The method according to the invention consists, when first and second portable terminals T1, T2 belonging respectively to first and second users UR1, UR2 are detected 500 in the vehicle VHL, in identifying 510 one UR1 of the users as the driver of the vehicle VHL and the other UR2 as a front passenger of the vehicle VHL, and in configuring 520 the touch screen ECT in the form of two adjacent independent display zones ZAG, ZAD each capable of rendering a content determined for each user UR1, UR2, by selecting 530 for each of the two display zones ZAG, ZAD, a preferred display configuration option chosen 540 beforehand by each of the two users UR1, UR2, from a dedicated mobile application on their respective portable terminals T1, T2.

[0078] The present invention also relates to a computer program product comprising instructions for implementing the method according to the invention, when these instructions are executed by a processor.

[0079] Finally, the present invention relates to a VHL motor vehicle comprising a display management device DGA of a touch screen ECT of a user interface ITU of the VHL vehicle, implementing the method as described above.

Claims

Claims

1. Method for managing the display of a touch screen (ECT) of a user interface (ITU) embedded in a motor vehicle (VHL), said method implemented by a display management device (DGA) of said screen (ECT), consisting when first and second portable terminals (T1, T2) belonging respectively to first and second users (UR1, UR2) are detected (500) in the vehicle (VHL), in identifying (510) one (UR1) of the users as the driver of the vehicle (VHL) and the other (UR2) as a front passenger of the vehicle (VHL), and in configuring (520) the touch screen (ECT) in the form of two independent and adjacent display zones (ZAG, ZAD), each capable of rendering a determined content for each user (UR1, UR2), by selecting (530) for each of the two display zones (ZAG, ZAD), a preferred display configuration option chosen (540) previously by each of the two users (UR1, UR2),from a dedicated mobile application on their respective portable terminals (Tl, T2).,

2. Method according to the preceding claim, consisting of configuring the touch screen (ECT) from the dedicated mobile application offering each user (UR1, UR2) several configuration options allowing each user (UR1, UR2) to associate at least one preferred display configuration, called user preference, with at least one determined type of journey, defined from the detection of a navigation instruction issued by a user (UR1).

3. Method according to the preceding claim, consisting when a navigation instruction defining a journey to be carried out has been detected, in determining, for each user (UR1, UR2) at least one user preference, relating to a determined function of the vehicle (VHL), from personalization data associating said at least one user preference with said journey and, in displaying a preferred configuration option for each user (UR1, UR2), selectable by default, to configure said function according to said at least one user preference of each user (UR1, UR2).

4. Method according to the preceding claim, consisting in determining said at least one user preference of each user (UR1, UR2), in consulting a database (MDP) in which the personalization data of each user (UR1, UR2) are pre-recorded.

5. Method according to one of claims 2 to 4, consisting, prior to the detection of the navigation instruction, in receiving, from the portable terminal (T1, T2) of each user (UR1, UR2), a personalization command defining, for said journey, said at least one user preference of each user (UR1, UR2) relating to a function of the vehicle (VHL) and, in recording, as personalization data, said at least one user preference of each user (UR1, UR2) in association with said journey.

6. Method according to any one of claims 2 to 5, wherein said at least one user preference of each user (UR1, UR2), defines a preferred setting of a vehicle function (VHL) among a plurality of possible settings.

7. Method according to claims 2 to 6, consisting of selecting a preferred configuration option, representative of at least one preference of the driver (UR1) from a plurality of alternative configuration options for a first determined function, selecting a preferred configuration option, representative of at least one preference of the front passenger (UR2), from a plurality of alternative configuration options of a second determined function and, displaying the preferred configuration options while hiding each other alternative configuration option of a function for each of the first and second users (UR1, UR2).

8. Method according to the preceding claim, consisting of selecting from among the preferred or alternative display configuration options at least one configuration option (CG3) compatible with a display of two distinct contents on the touch screen (ECT) intended respectively for the first and second users (UR1, UR2).

9. Computer program product comprising instructions for implementing the method according to any one of the 14 preceding claims, when these instructions are executed by a processor.

10. Motor vehicle (VHL) comprising a display management device (DGA) of a touch screen (ECT) of a user interface (ITU) of the vehicle (VHL) implementing a method according to one of claims 1 to 8.

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