Display systems in vehicles

Abstract

A control system for a display system in a vehicle, the control system comprising one or more processors collectively configured to: set one or more screen display parameters of a screen of the displa

Description

TECHNICAL FIELD The present disclosure relates to vehicle display settings. Aspects of the invention relate to a control system for a display system in a vehicle, and a method in a control system for a display system of a vehicle. BACKGROUND Vehicles often include display systems, where a screen of the display system is used to display various outputs such as directional information, weather forecasts, music playlists, and traffic updates, amongst others. Many vehicles have cameras, and camera outputs. Live video feeds are typically activated on the screen when a driver is carrying out actions such as parking or reversing. The camera output on the screen may assist the driver in carrying out such actions. SUMMARY OF THE INVENTION Screens of display systems in vehicles have various screen display parameters, such as screen brightness and contrast etc. The screen display parameters are usually set according to ambient brightness, for example, display systems are often configured to display in a day-light mode, and a dark-mode at night. The dark mode is dimmed so as not to dazzle the driver. It has been recognised by the inventors herein that the combination of dark-mode (e.g. dark coloured) graphics with the dark-mode brightness settings which are lower than the daytime brightness threshold, is not appropriate in some circumstances. In aspects herein, a control system for a display system in a vehicle is configured to set or change the screen parameters when displaying camera output. This allows the system to be configured to display the camera output with minimum display settings to ensure that the camera output is visible to the driver of the vehicle. According to an aspect of the present invention there is provided a control system for controlling a display system in a vehicle. The control system comprises one or more processors collectively configured to set one or more screen display parameters of a screen of the display system to or more respective first screen display values. In response to receiving an indication that a camera output is to be displayed on the screen, the control system is then configured to set the one or more screen display parameters to one or more respective second screen display values for displaying the camera output on the screen. In this way, different screen display (parameter) values can be used to display camera feeds. This is of use, for example, when the display is in a night-mode, as the camera feed can be displayed with different settings that allow the screen to be brighter while displaying the camera feed, to enable the viewer to discern the detail of the camera feed and to enable them to perform precise manoeuvres, while otherwise setting the screen parameters to values suitable for night-time viewing. According to an aspect of the present invention, the control system comprises one or more controllers collectively comprising at least one electronic processor having an electrical input for receiving an input signal; and at least one memory device electrically coupled to the at least one electronic processor and having instructions stored therein; and wherein the at least one electronic processor is configured to access the at least one memory device and execute the instructions thereon so as to: set one or more screen display parameters of a screen of the display system to or more respective first screen display values and, in response to receiving an indication that a camera output is to be displayed on the screen, set the one or more screen display parameters to one or more respective second screen display values for displaying the camera output on the screen. The first screen display values may be different to the second screen display values. The control system described herein advantageously allows different screen display values to be used when a camera output is displayed, ensuring the camera feed is always displayed using appropriate values, independent of the current display values, or any ‘default’ display values. In some embodiments, the control system is further configured to determine one or more of the first screen display values in dependence on one or more ambient light levels detected inside and / or outside the vehicle. This allows the screen to be displayed at a higher brightness, for example, when it is light compared to when it is dark, to avoid dazzling the driver in dim light. In some embodiments, the control system is further configured to, in response to receiving the indication, determine if one or more of the screen display parameters satisfies one or more camera display criteria, and set the one or more screen display parameters to the respective second screen display value if the one or more screen display parameters do not satisfy the camera display criteria. This ensures that the camera output is always displayed using values that allow details in the camera feed to be shown clearly, independent of ambient light levels. The one or more camera display criteria may comprise a threshold ambient light level for displaying camera output, and the control system may be configured to set the one or more screen display parameters to the respective second screen display value if the ambient light levels inside and / or outside the vehicle are below the threshold ambient light level. The one or more camera display criteria may comprise a minimum screen display brightness value for displaying the camera output, and the control system may be configured to set the one or more screen display parameters to the respective second screen display values if a screen display brightness value in the one or more screen display parameters is below the minimum screen display brightness. Therefore, the camera output is always displayed with sufficient brightness for the camera feed to be displayed clearly. The one or more camera display criteria may comprise a range of contrast parameter values for displaying the camera output; and the control system may be configured to set the one or more screen display parameters to the respective second screen display values if a screen contrast parameter value in the one or more screen display parameters is out of range of the range of contrast parameter values. Thus, the camera output is always displayed using a set of contrast parameters that allow the camera feed to be displayed clearly. The one or more camera display criteria comprise a range of colour parameter values for displaying the camera output; and the control system may be configured to set the one or more screen display parameters to the respective second screen display values if a screen colour parameter value in the one or more screen display parameters is out of range of the range of colour parameters. Thus, the camera output is always displayed using a set of colour parameters that allow the camera feed to be displayed clearly. In some embodiments, the control system is further configured to, in response to receiving an indication that a camera output is not to be displayed on the screen, set the one or more screen display parameters to the respective first screen display value. Thus, when the camera output is not displayed, the screen displays the output using the first screen display values, that may depend on external factors. In some embodiments, the control system is configured to instruct a first portion of the screen to display the camera output using the second screen display values, and to continue to use the first screen display values for one or more other portions of the screen. The camera output may comprise a live video feed from a camera on the vehicle. In some embodiments, the control system is further configured to receive the indication in response to a change in drive mode of the vehicle. As such, the screen parameters may be changed when the vehicle is put into reverse, or if a parking manoeuvre is initiated. This ensures that the screen has the appropriate screen settings such as brightness, to enable the driver to use the camera output (e.g. a live feed) during the manoeuvre. According to another aspect of the invention, there is provided a display system for a vehicle comprising screen, and a control system according to the invention. According to another aspect of the invention there is provided a vehicle comprising a display system having a screen, and a control system for the display system according to the invention. According to anotheraspect ofthe invention there is provided a method in a control system for a display system of a vehicle, the method comprising setting one or more screen display parameters of a screen ofthe display system to one or more respective first screen display values, and in response to receiving an indication that a camera output is to be displayed on the screen, setting the one or more screen display parameters to one or more respective second screen display values for displaying the camera output on the screen. According to another aspect ofthe invention, there is provided computer readable instructions which, when executed by one or more processors, cause the one or more processors to perform the method according to the invention. Within the scope of this application it is expressly intended that the various aspects, embodiments, examples and alternatives set out in the preceding paragraphs, in the claims and / or in the following description and drawings, and in particular the individual features thereof, may be taken independently or in any combination. That is, all embodiments and / or features of any embodiment can be combined in anyway and / or combination, unless such features are incompatible. The applicant reserves the right to change any originally filed claim or file any new claim accordingly, including the right to amend any originally filed claim to depend from and / or incorporate any feature of any other claim although not originally claimed in that manner. BRIEF DESCRIPTION OF THE DRAWINGS One or more embodiments of the invention will now be described, by way of example only, with reference to the accompanying drawings, in which: Figure 1 shows a block diagram of a display system comprising a control system according to an embodiment of the invention; Figure 2 shows a vehicle comprising the control system of Figure 1; Figure 3 shows a flowchart of a method for a control system in a display system according to an embodiment of the invention. DETAILED DESCRIPTION There is a need to provide a control system that sets screen display parameters for a screen of a display system in a vehicle, so that a camera output on the screen is viewed clearly by a driver. Screen display parameters (such as contrast, brightness, colour etc.) are typically adjusted based on the ambient light level either inside or outside of the vehicle: when the ambient light level is low, screen brightness reduces, and the driver is not dazzled by the screen. However, reducing the brightness means that when the camera output is displayed on the screen, the details displayed cannot be seen clearly by the driver. In embodiments herein it has been recognised that the control system for the vehicle display system can be improved so that when a camera output is displayed on the screen, screen display parameters are set to values that allow the camera output to be seen clearly by the driver, independent of the ambient light level inside or outside the vehicle. The present disclosure addresses the above-described challenges by providing a control system for a display system in a vehicle where the control system sets one or more screen display parameters to a particular value, that may be based, for example, on ambient light level. However, in response to receiving an indication that a camera output is to be displayed on the screen, the control system changes the value of the one or more screen display parameters, to values more suitable for displaying the camera output. Additionally, there may be camera display criteria relating to each screen parameter value (e.g. a minimum value, an optimal range of values) that result in a clear image of the camera output on the screen. On receiving an indication that the camera output is to be displayed on the screen, the control system sets the screen display parameter to values that meet the camera display criteria. In this way, the present disclosure provides a control system that ensures the camera output is always displayed clearly on the screen of the display system in a vehicle, no matter the ambient light conditions. Figure 1 is a block diagram illustrating a control system 100 for a display system 200 in a vehicle. The control system 100 may be configured to perform the method 400 described with respect to Figure 3. As illustrated, the display system 200 comprises the control system 100 and a screen 160. The control system 100 comprises one or more processors 120 (only one is shown in Figure 1, but it will be appreciated that this is merely an example and that the control system may comprise one or more processors) and a memory 130. The processor 120 may be one or more electronic processing devices which operably executes computer-readable instructions. The memory 130 may be one or more memory device. The memory 130 is electrically coupled to the processor 120. The memory 130 is configured to store instructions, and the processing means 120 is configured to access the memory 130 and to execute the instructions stored thereon. The instructions may cause the processor 120 to perform any of the methods described herein, such as the method 400 described below. The control system 100 comprises an input means 140 and an output means 150. The input means 140 may comprise an electrical input of the controller 100. The output means 150 may comprise an electrical output of the controller. The input 140 is arranged for example, to receive a signal comprising an indication that camera output is to be displayed on the screen. The output 150 is arranged to output a display control signal for controlling the screen display values of the display 160 when the camera output is displayed thereon. Briefly, the control system 100 for the display system 200 is configured to set one or more screen display parameters of the screen 160 of the display system to one or more respective first screen display values. In response to receiving an indication that a camera output is to be displayed on the screen 160, the one or more processors then set the one or more screen display parameters to one or more respective second screen display values for displaying the camera output on the screen 160. In this way, the screen display parameters are set to different values when displaying camera output. This can be used to ensure that, irrespective of the ambient lighting conditions, the camera feed is always displayed on the display with appropriate camera settings. In more detail, the skilled person will be familiar with display systems in vehicles. Vehicle display systems comprise a screen 160 that is configured to display various outputs, such as, for example, a camera output, but also navigational information such as, e.g. maps, weather information, and music playlists, alongside many other features. While the present disclosure focuses on displaying the camera output, the present technique may be used for any output when a clear image of the screen is required (e.g. when displaying directions). The one or more processors of the control system 100 are configured to set one or more screen display parameters of a screen 160 of the display system to one or more respective first screen display values. The screen display parameters are the parameters that determine how the screen 160 displays an output. The screen display parameters comprise screen brightness, screen contrast, and screen colour temperature, although many other parameters may also be included. The control system 100 sets (assigns) a value (the first screen display value) to each of the one or more screen display parameters. The first screen display value may comprise a screen brightness value, a screen contrast value, and a screen colour temperature value. The first screen display values may be the “default” settings, e.g. the settings used when anything other than camera output is displayed. The control system 100 may determine one or more of the first screen display values in dependence on (e.g. dependent on) one or more ambient light levels detected inside and / or outside the vehicle. Accordingly, the light level inside and / or outside the vehicle may determine the screen display values (e.g. the screen brightness value, the screen contrast value, and the screen colour temperature value). The ambient light level inside and outside the vehicle may be detected by sensors, cameras 310, or using any other suitable method. The signal from such a sensor or camera 310 may be provided to the control system 100, which then determines the first screen display values therefrom. For example, when the ambient light level detected inside or outside the vehicle is low, the control system may set the screen display parameters in such a way as to dim the screen 160 (e.g. reduce the screen brightness value), so that the driver is not dazzled by the screen 160. Alternatively or additionally to ambient light levels, in some embodiments, the control system may determine the one or more of the first screen display values in dependence on (e.g. dependent on) one or more ambient light conditions detected inside and / or outside the vehicle. As used herein, the light conditions may refer to the colour (e.g. spectral distribution) of the light exterior to the vehicle. For example, some bulbs on street lamps may output light of different colours and this may affect a driver’s ability to pick out details in a camera feed on a screen 160. As such, the first screen display values may be set dependent on the colour of light in the surrounding environment, in order to ensure the output on the screen 160 can be viewed clearly in view of the ambient light colour. As described above, in response to receiving an indication that a camera output is to be displayed on the screen, the one or more processors 120 are configured to set the one or more screen display parameters to a respective second screen display value for displaying the camera output on the screen 160. In other words, the default screen parameters (e.g. the parameter values set according to ambient light conditions, ambient colour conditions or any other method) might be changed or modified when a camera-feed is displayed on the screen, to a second set of screen display values. The second set of screen display values may be different to the first set of screen display values. The camera output may be, for example, a camera feed e.g. a live-feed from a camera 310 mounted on the vehicle. For example, the camera output may be from a camera 310 positioned at the rear of the vehicle (e.g. a reversing camera), from a camera 310 positioned at the front of the vehicle, or from a camera 310 placed at any other position on the vehicle. The camera output may be a live feed, e.g. the real-time video stream from the camera 310. It will be appreciated that there may be more than one camera 310 mounted on the vehicle and the screen display parameters may be changed / set to the respective second screen display values in response to receiving an indication that any camera output is to be displayed on the screen. As noted above the one or more processors are configured to set the one or more screen display parameters to the respective second screen display value(s) in response to receiving an indication that a camera output is to be displayed on the screen. In this sense, “an indication may refer to a message from anther control system in the vehicle, or a determination made by the control system for the display system itself. For example, a change in drive mode may provide an indication that a camera output is to be displayed on the screen. For example, if the driver puts the vehicle into reverse, or an automated parking mode, then this may trigger the control system to display camera output on the screen and may be taken as an indication that the camera output is to be displayed on the screen. As such, a change in drive mode may trigger display of the camera output on the screen 160 with the second screen display values. In this way, the second screen display values may be used when a manoeuvre is performed, so that the camera output (e.g. live camera feed) is presented to the driver with appropriate screen settings, e.g. at an appropriate brightness level, for example. As another example, in some embodiments, a user interaction with the screen 160 of the display system 200 may be taken as an indication that a camera output is to be displayed on the screen. For example, if a user (e.g. driver) provides an input to cause the camera 310 to be displayed on the screen then this may cause the control system to set the one or more screen parameters to the second screen display values. The second screen display values (used to display the camera output) may be values for screen brightness, screen contrast, or screen colour temperature that are designed to allow the camera output to be displayed clearly on the screen (for example, increased contrast and brightness values). Therefore, the second screen display values may also be referred to as camera screen display values. As an example, the first screen display values may correspond to the values appropriate for low ambient light conditions (e.g. evening or night, e.g. a night-mode). In such circumstances, the second screen display values may be brighter than the first set of screen display values. E.g. at night, the brightness of the screen may be increased when the camera is displayed. This ensures that the camera can still be easily viewed by the user at night. E.g. when reversing or performing another manoeuvre requiring the camera 310. Setting specific screen display values when the camera output is to be displayed ensures that the camera output is always displayed clearly, independent of the first screen display values (which may e.g. be set dependent on ambient light levels). For example, the first screen display values may comprise a screen brightness value set to a first level, and the second screen display values may comprise a screen brightness value set to a second level, the second level being higher than the first level. As a result, the screen 160 may be brighter when the screen display parameters are set using the second screen display values, i.e., when the camera output is displayed on the screen 160. In some embodiments, the camera output comprises a live video feed from a camera 310 on the exterior of the vehicle 300. Accordingly, the screen displays the live video feed from the vehicle camera 310. This is advantageous when a vehicle is, for example, parking or reversing, as the live video feed assists the driver when performing these actions. Thus, it is important that the live video feed is displayed clearly on the screen 160. Additionally, the control system 100 may be configured to instruct a first portion of the screen 160 to display the camera output using the second screen display values (camera screen display values), and to continue to use the first screen display values for one or more other portions of the screen 160. A portion of the screen 160 may be displaying the camera output, and a portion of the screen 160 may be displaying another feature, for example, weather. In such instances only the portion of the screen 160 displaying the camera output uses the second screen display parameters, that are optimised for displaying the camera output. Thus, a portion of the screen 160 continues to use the first screen display parameters, which may be determined by factors other than the activation of a camera 310 (e.g. ambient light levels). This may allow energy saving, as in some instances it is likely that portions of the screen 160 not displaying the camera output can be displayed with reduced brightness compared to the portions of the screen 160 displaying the camera output. It also ensures that other content does not dazzle the user (e.g. at night). In some embodiments, the control system is further configured to, in response to receiving the indication, determine if one or more of the screen display parameters satisfies one or more camera display criteria, and set the one or more screen display parameters to the respective second (camera) screen display value if the one or more screen display parameters do not satisfy the camera display criteria. The camera display criteria comprise a set of criteria to be met for a camera output to be viewed clearly on the screen 160 (for example, a minimum brightness, ora range of contrast values, discussed later). It follows that if the one or more screen display parameters do not meet the criteria, the camera output cannot be viewed clearly on the screen 160 by the driver. Therefore, if the camera display criteria are not met, the control system 100 changes the values of the screen display parameters to the second screen display values. This is advantageous as the control system overrides the first screen display values when a particular camera display criteria is not met. Therefore, the appropriate screen display values are always used to display the camera output. In some embodiments, the camera display criteria may comprise a threshold ambient light level for displaying the camera output. In such embodiments, the control system is configured to set the one or more screen display parameters to the respective second (camera) screen display value if the ambient light levels inside and / or outside the vehicle are below a threshold ambient light level. The threshold ambient light level may correspond to the ambient light level at which the first screen display values make the screen 160 too dim to be viewed clearly. As described above, if the ambient light level is low, the control system 100 may dim the screen 160 to avoid dazzling the driver. In response to receiving the indication that the camera output is to be displayed, the control system 100 determines if the ambient light level is below the ambient light threshold (and thus the screen 160 is too dim to view the camera output). If the ambient light level is below the threshold, the control system 100 sets the screen display parameters to the second (camera) screen display values. The second screen display values are different to the first screen display values, and are configured to allow the camera output to be displayed clearly on the screen 160. The second screen display values may be higher than the threshold. If the ambient light levels inside or outside the vehicle are equal to or above the threshold ambient light level, and thus do meet the camera display criteria, the control system 100 may take no action and the camera output may thus be displayed using the first screen display values. In some embodiments the one or more camera display criteria comprise a minimum screen display brightness value for displaying the camera output. In such embodiments, the control system is configured to set the one or more screen display parameters to the respective second screen display values if a screen display brightness value in the one or more screen display parameters is below the minimum screen display brightness. A minimum screen brightness value prevents the screen 160 from displaying the camera output at a screen brightness that is not sufficient for viewing a clear image of the camera output. For example, a dark screen 160 may hide various details which are important for the driver to see. As described above, the screen display values may be set in dependence on ambient light levels. When the ambient light level is low, the control system may reduce the screen brightness value to prevent the screen 160 from dazzling the driver. If the control system determines that the reduced screen brightness value is below the minimum screen brightness value for displaying the camera output, the control system sets the screen brightness to the second (camera) screen display brightness value, i.e., increases the screen brightness value. Alternatively, when the ambient light level is high, and the screen brightness value is already above the minimum screen brightness value for displaying the camera output, the control system 100 takes no action, and the screen brightness parameter remains set at the current screen brightness value. In some embodiments, the one or more camera display criteria may comprise a range of contrast parameter values for displaying the camera output. The control system is configured to set the one or more screen display parameters to the respective second screen display values if a first screen contrast value in the one or more screen display parameters is out of range of the range of contrast parameters. The first screen contrast values may comprise contrast values outside of the range defined in the camera display criteria, as the first screen display values may be dependent on external factors. The control system 100 of the present invention overrides the first screen contrast value when the camera output is activated, ensuring that that no matter the first screen display values, the camera output can be displayed clearly. In some embodiments, the one or more camera display criteria may comprise a range of colour parameter values for displaying the camera output. Colour parameter values may relate to colour temperature values, a range of colour co-ordinate values, or a range of white balance co-ordinate values that are known to be an optimal range for displaying the camera output. The control system 100 is configured to set the one or more screen display parameters to the respective second screen display values if a screen colour parameter value in the one or more screen display parameters is out of range of the range of colour parameters. In more detail, the control system 100 checks if the colour parameter values in the first screen display values meet the camera display criterion relating to colour parameter values. If the values in the first screen display values do sit within the range specified by the camera display criterion, then the control system 100 may not take any action. However, if the colour parameter values in the first screen display values sit outside of the range of colour parameter values defined in the display criterion, the control system 100 may set the screen display parameters to the second (camera) display values. The second display values comprise colour parameter values suitable for clearly displaying the camera output. In this way, the control system 100 ensures that the appropriate colour parameters are used for displaying the camera output. In some embodiments, the control system 100 is configured to, in response to receiving an indication that a camera output is not (or no longer) to be displayed on the screen 160, set the one or more screen display parameters to the respective first screen display values. Therefore, if the camera output is de-activated, the control system sets the screen parameters to the first screen display values. The camera output may be deactivated by a change in drive mode (e.g. the driver changes from reverse to forward drive), or through a user interaction with the screen 160. The first screen display values may be determined by various factors. For example by, as described above, ambient light levels. The control system 100 described above and with reference to Figure 1 may be used in a vehicle 300 such as that illustrated in Figure 2. In such examples, the vehicle 300 comprises a control system configured to adjust the screen display parameters when a camera output is to be displayed on the screen 160. Accordingly, in such vehicles, a driver is able to see a clearer image of the camera output which may assist them in performing actions such as driving or parking. Figure 3 is a flowchart of a method 400 for a control system for a display system of a vehicle. The method may be performed by the control system 100 described in Figure 1. Briefly, the method 400 comprises setting 410 one or more screen display parameters of a screen of the display system to a respective first screen display value. The method further comprises, in response to receiving 420 an indication that a camera output is to be displayed on the screen, setting 430 the one or more screen display parameters to a respective second screen display value for displaying the camera output on the screen. Steps of setting 410 one or more screen display parameters of a screen of the display system to a respective first screen display value; receiving 420 an indication that a camera output is to be displayed on the screen; and in response, setting 430 the one or more screen display parameters to a respective second screen display value for displaying the camera output on the screen, were described above with respect to the functionality of the control system 100 and the detail therein will be understood to apply equally to the method 400. The method 400 allows a control system is able to set values for screen display parameters that are optimised for displaying a camera output, when it receives an indication (for example via a sensor) that a camera output is to be displayed on the screen. Turning now to other embodiments, it will be appreciated that the method 400 may be embodied in a computer program. For example, a computer program product may comprise a computer readable medium, the computer readable medium having computer readable code embodied thereon. The computer readable code can be configured such that, on execution by a suitable computer or processor, the computer or processor is caused to perform the method or methods described herein (such as the method 400). A computer program may take different forms, for example, source code, compiled code, executable code, or any other type of code. It will be appreciated that the source code of computer programs may be written in a wide variety of different programming languages, and may take different architectural designs. For example, the functionality described herein may be split across various different sub-routines. Furthermore, computer programs may call external and / or standard libraries of computer code for performing certain sub-tasks associated with the functionality described herein. In another embodiment, there is a computer program product comprising non-transitory computer readable media, having stored thereon a computer program as described above. Examples of computer readable media include, but are not limited to: ROM, such as a CD ROM, a semi-conductor ROM or a magnetic recording medium such as a hard disk. In another embodiment, there is a carrier containing a computer program. Examples of carriers include but are not limited to an electronic signal, optical signal, radio signal, computer storage medium, or similar. The carrier of a computer program may be any entity or device (e.g. hardware) capable of carrying the program. As an example, a carrier may be a computer readable media as described above. In other examples a carrier may be a transmissible carrier such as an electronic or optical signal, which may be conveyed via electrical or optical cable or by radio or other means. It will be appreciated that various changes and modifications can be made to the present invention without departing from the scope of the present application.

Claims

1. A control system for controlling a display system in a vehicle, the control system comprisingone or more processors collectively configured to:set one or more screen display parameters of a screen of the display system to one or more respective first screen display values; andin response to receiving an indication that a camera output is to be displayed on the screen, set the one or more screen display parameters to one or more respective second screen display values for displaying the camera output on the screen.

2. A control system as in claim 1 wherein the control system is further configured to determine one or more of the first screen display values in dependence on one or more ambient light levels detected inside and / or outside the vehicle.

3. A control system as in claim 1 or 2 wherein the control system is further configured to, inresponse to receiving the indication:determine if one or more of the screen display parameters satisfies one or more camera display criteria; andset the one or more screen display parameters to the respective second screen display value if the one or more screen display parameters do not satisfy the camera display criteria.

4. A control system as in claim 3 wherein the one or more camera display criteria comprise athreshold ambient light level for displaying camera output; andwherein the control system is configured to set the one or more screen display parameters to the respective second screen display value if the ambient light levels inside and / or outside the vehicle are below the threshold ambient light level.

5. A control system as in claim 3 or 4 wherein the one or more camera display criteria comprisea minimum screen display brightness value for displaying the camera output; andwherein the control system is configured to set the one or more screen display parameters to the respective second screen display values if a screen display brightness value in the one or more screen display parameters is below the minimum screen display brightness.

6. A control system as in any of claims 3 to 5 wherein the one or more camera display criteriacomprise a range of contrast parameter values for displaying the camera output; andwherein the control system is configured to set the one or more screen display parameters to the respective second screen display values if a screen contrast parameter value in the one or more screen display parameters is out of range of the range of contrast parameter values.

7. A control system as in any of claims 3 to 6 wherein the one or more camera display criteriacomprise a range of colour parameter values for displaying the camera output; andwherein the control system is configured to set the one or more screen display parameters to the respective second screen display values if a screen colour parameter value in the one or more screen display parameters is out of range of the range of colour parameters.

8. A control system as in any one of the preceding claims wherein the control system is furtherconfigured to, in response to receiving an indication that a camera output is not to be displayed on the screen, set the one or more screen display parameters to the respective first screen display value.

9. A control system as in any one of the preceding claims wherein the control system isconfigured to instruct a first portion of the screen to display the camera output using the second screen display values, and to continue to use the first screen display values for one or more other portions of the screen.

10. A control system as in any one of the preceding claims wherein the camera output comprises a live video feed from a camera on the vehicle.

11. A control system as in any one of the preceding claims wherein the control system is further configured to receive the indication in response to a change in drive mode of the vehicle.

12. A display system for a vehicle comprising:a screen; anda control system as in any one of the preceding claims.

13. A vehicle comprising:a display system having a screen; anda control system for the display system as in any one of claims 1 to 11.

14. A method in a control system for a display system of a vehicle, the method comprising:setting one or more screen display parameters of a screen of the display system to one or more respective first screen display values; andin response to receiving an indication that a camera output is to be displayed on the screen, setting the one or more screen display parameters to one or more respective second screen display values for displaying the camera output on the screen.

15. Computer readable instructions which, when executed by one or more processors, cause the one or more processors to perform the method according to claim 14.

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