Display system and method for operating a display system

Abstract

The invention relates to a display system for a vehicle, wherein the display system comprises a flexible display field (4) with light sources (18) and at least one thermometer (6), wherein the display field (4) has at least one section (12, 14, 16) which is arranged in an interior of the vehicle, wherein the at least one thermometer (6) is configured to measure at least one temperature in the interior of the vehicle, wherein, in the event that at least one value of an air conditioning trigger function, which depends on the at least one measured temperature, deviates from a value range provided for this purpose during a period of time, a value of a brightness of the light sources (18) in the at least one section (12, 14, 16) of the display field (4) is to be changed, wherein the light sources (18) with the changed value of brightness are configured to air-condition the at least one section (12, 14, 16) of the display field (4).

Description

[0001] The invention relates to a display system and a method for operating a display system.

[0002] The publication DE 10 2017 113 318 B4 describes a display arrangement.

[0003] A display device for a vehicle is known from publication WO 2015 / 002258 A1.

[0004] From the publication DE 10 2010 048 423 A1, a device and a method for improving the reaction time of a liquid crystal display are known.

[0005] Against this background, the task was to operate a display panel appropriately for a vehicle.

[0006] This problem is solved by a display system and a method with the features of the independent claims. Embodiments of the display system and the method are described in the dependent claims and the description.

[0007] The display system according to the invention is designed for a vehicle, e.g., a motor vehicle, and comprises a flexible, elastically deformable and / or bendable display field with light sources and at least one thermometer arranged in the interior of the vehicle. The display field has at least one section, in one embodiment a curved section, and at least one straight section. The at least one thermometer is configured to measure at least one temperature in the interior, e.g., of the at least one section, at least of the curved section, of the display field. If at least one value of an air conditioning trigger function, which depends on the at least one measured temperature, deviates from a provided, usually adjustable, value range for a period of time, the display field is automatically activated.If the value falls outside this range, the display system is designed to change and / or adjust the brightness of the light sources in at least one section of the display field. The light sources with the changed and / or adjusted brightness are then designed to automatically regulate the temperature of at least one section of the display field, i.e., to increase or decrease it depending on the set brightness level.

[0008] The light sources are designed to heat at least one section of the display field with and / or depending on the set brightness value, or to heat when a high brightness value is set, or to cool when a low brightness value is set.

[0009] The display panel is moved by a mechanism relative to a component located in the vehicle's interior. In this process, the panel is moved into or out of the component, bending at least one section of it. The mechanism is designed to position the display panel in a specific orientation, with the light sources designed to regulate the temperature of the display panel in its respective position. If, before any movement (usually a shift), the display panel's temperature is outside the acceptable range, it will only be moved once its temperature, after conditioning, falls within the acceptable range.

[0010] The display system has a receptacle for the display field which is arranged in the component, wherein the receptacle is designed to at least partially accommodate at least one internal section of the display field which is movable, to be moved or moved by the mechanism, wherein the curved section is to be arranged at least partially inside and / or outside the receptacle, i.e. only inside, both inside and outside or only outside the receptacle.

[0011] The at least one thermometer or temperature sensor of the display system located in the interior can be in direct thermal contact with the display field or its at least one section and can be located, for example, in the component or its housing for the display field, wherein the at least one thermometer is configured to directly measure the temperature of the at least one section. Alternatively or additionally, the at least one thermometer can be in indirect thermal contact with the at least one section, wherein the at least one thermometer is located outside the described component in the interior and is configured to measure a temperature in the interior of the vehicle, thereby indirectly measuring the temperature of the at least one section. The at least one thermometer can be located near the display field, usually in another component, e.g.,It may be located in or on an air conditioning unit, or in the interior. If the component is located in the interior, the thermometer located in the component is also located in the interior.

[0012] The at least one thermometer is configured to directly or indirectly measure the temperature of the display field, or at least the temperature of a section, typically the section that is bent in the respective position. The at least one thermometer is usually arranged in and / or on the component in the immediate vicinity of a respective section of the display field. In one possible embodiment, the at least one thermometer is arranged at a fixed location on the component in the immediate vicinity of the section that is bent in the respective position, where the bent section is located independently of the respective position of the display field.

[0013] The thermometer positioned at this location can touch or be in contact with the curved section. Since the display field is movable, the curved section is located at different positions along the typically strip-shaped display field depending on the orientation of the display field.

[0014] The display system can include a control unit configured to detect and evaluate the temperature measured by the at least one thermometer, and to determine, based on the measured temperature, typically time-dependent values ​​for the air conditioning trigger function, and to compare these values ​​with the designated range of values. Furthermore, the control unit is configured to control the light sources based on the measured temperature and to adjust their brightness by supplying current to each light source, whereby the magnitude of the current to be conducted and / or carried by the respective light source is adjusted based on the measured temperature.

[0015] The method according to the invention is intended for operating a display system, typically an embodiment of the display system presented here, for a vehicle, e.g., for the interior of a vehicle designed as a motor vehicle. The display system comprises a flexible, elastically deformable and / or bendable display field with light sources and at least one thermometer, which are to be arranged, can be arranged, or are arranged in the interior of the vehicle. The display field has at least one section. The temperature in the interior, e.g.,A temperature of at least one section of the display field is measured in the interior, wherein, in the event that at least one value of an air conditioning trigger function, which depends on the at least one measured temperature, deviates from a specified range of values ​​for a period of time and / or lies outside this range of values, a value of a brightness of the light sources in the at least one section of the display field is changed and / or adjusted, wherein the at least one section of the display field is automatically air-conditioned by and / or with the light sources with the changed and / or adjusted value of brightness from the light sources and the temperature of the at least one section is changed.

[0016] The climate control function's range of values ​​is limited by a minimum and a maximum threshold. If the minimum value of the climate control trigger function is less than the defined minimum threshold, the brightness of the light sources is increased, thus heating at least one section of the display area. Conversely, if the maximum value of the climate control trigger function is greater than the defined maximum threshold, the brightness of the light sources is reduced, and at least one section of the display area is cooled by the light sources.

[0017] The climate control trigger function can have values ​​for temperature or temperature values. This is the case, for example, when the value of the climate control trigger function corresponds to at least one measured temperature, where the maximum value of the climate control trigger function corresponds to a measured maximum temperature and the minimum value of the climate control trigger function corresponds to a measured minimum temperature, with each threshold also corresponding to a temperature. Alternatively or additionally, it is provided that each value of the climate control trigger function depends on at least one temperature value, e.g., on several temperature values ​​that are measured successively during the time period. The measured temperature values ​​used to provide the climate control trigger function can, for example, be...The values ​​can be summed and / or integrated, whereby at least one value of the air conditioning trigger function for the specified time period is determined from several measured values ​​and / or during the specified time period and compared with the designated range of values. It is also possible to determine an average temperature value from several temperature values ​​as the value of the air conditioning trigger function and compare it with the designated range of values.

[0018] The temperature of at least one section and / or the display field is measured directly by the at least one thermometer when it is in contact with the display field and, in a given configuration, is arranged on the display field. Alternatively or additionally, the temperature of the at least one section and / or the display field is measured indirectly by the at least one thermometer when the at least one thermometer is arranged separately from the display field inside the device.

[0019] In this embodiment of the method, to heat at least one section of the display field, the proportion of white light sources among all light sources is increased, and the proportion of black and / or colored light sources among all light sources is reduced. Alternatively, to cool the display field, the proportion of black and / or colored light sources among all light sources is increased, and the proportion of white light sources among all light sources is reduced. It is possible that the brightness of one light source is inverted in each case. If a light source is initially black or not illuminated because it is deactivated in that situation, it is activated and set to white to heat the at least one section in which it is located.Alternatively, the white light source, which is activated in a given situation to cool the at least one section in which it is located, is deactivated and set to black or non-illuminating.

[0020] In this process, a control unit of the display system typically determines, in any given situation where a specific brightness value for the light sources of at least one section of the display is currently set, when the currently set brightness value for the light sources used for climate control and temperature adjustment of at least one section of the display will be changed and the brightness value updated or a new value set. During this process, a remaining time (countdown) is displayed on the display, indicating how long the currently set brightness value will be maintained until and / or before this current brightness value is changed and a new value for the light sources is set.

[0021] The procedure can be performed while the vehicle is in motion or while stationary, if it is typically left standing for an extended period of several hours, days, or weeks. If the display panel is subjected to significant heating or cooling due to external influences over a prolonged period, it will be automatically climate-controlled, even when the vehicle is stationary, if the value of the temperature-dependent climate control trigger function deviates from its intended range, i.e., falls outside this range. In this process, the display panel that has been excessively heated by external influences will be cooled, or the display panel that has been excessively cooled by external influences will be heated. The display panel will be deformed and / or bent by the mechanism in the relevant section if it is moved and / or shifted by the mechanism.

[0022] In this configuration, the control unit measures time and thus also a specific time period, storing and evaluating the measured temperature values. An application (app) runs as software within the control unit, calculating the values ​​for the climate control trigger function. The display is then automatically climate-controlled and / or self-climbing if at least one value of the climate control trigger function deviates from the designated value range during the specified time period.

[0023] Furthermore, the display field is designed to be touch-sensitive and can be configured and / or referred to as a touch display. The display field can be manually operated in any section outside the frame, i.e., in both the flat, straight section and the curved section. The mechanism for moving and deforming the display field is located in the component outside the display field.

[0024] The display area is heated by the light sources to protect against excessively low temperatures and, alternatively, cooled to protect against excessively high temperatures. In extreme cold, when the temperature is below the minimum threshold, the display area, at least in its curved section, is heated by the light sources located within it. The light sources or light elements can be configured as pixels. The flexible, self-illuminating display area uses organic light-emitting diodes (OLEDs) or micro-light-emitting diodes (µLEDs) as light sources. It can also use electroluminescent quantum dots (EL-QDs) as light sources and be configured as an electroluminescent quantum dot display.

[0025] To control and adjust the brightness of the light sources, the control unit applies a voltage to each light source and / or passes a current through it. To heat a particular light source, a very bright white is set, while to cool it, a black setting is used. This process effectively regulates the temperature of the display by heating or cooling it. To heat the display, a content with a high proportion of white can be displayed, where more light sources are illuminated in white rather than black. To cool the display, a content with a high proportion of black can be displayed, where more light sources are illuminated in black rather than black.

[0026] The respective display content can be used to create a graphical user interface on and / or with the display field. It is also possible to invert the brightness of the displayed content in a given situation. To increase the brightness, a black light source is activated and set to white, while to decrease it, a white light source is deactivated and set to black. The more white and / or activated light sources are set compared to black or black and / or deactivated light sources, the greater the brightness and the increase in brightness. Conversely, the more black or black and / or deactivated light sources are set compared to white and / or activated light sources, the lower the brightness and the greater the decrease in brightness.

[0027] This method can extend the service life of the display. The temperature of the display is detected, determined, and / or measured by at least one thermometer. In this embodiment, the display is heated before being moved by the mechanism, typically relative to the component, if the temperature is lower than the minimum temperature threshold defined by the climate control trigger function. Alternatively, the display is cooled before being moved by the mechanism, typically relative to the component, if the temperature is higher than the maximum temperature threshold defined by the climate control trigger function. The display content or its brightness is inverted to change the temperature and / or to climate control the display. Black and / or deactivated light sources are used for heating.The control unit activates and / or sets the light elements to white, thereby increasing the current flowing through the light sources. For cooling, the control unit deactivates and / or sets activated and / or white-set light sources or light elements to black, thereby reducing, e.g., switching them off.

[0028] If the temperature of the flexible, movable display panel falls outside the specified range, appropriate climate control of the display panel ensures that it can be moved and bent more easily. This protects the display panel from potential damage caused by deformation or bending.

[0029] It is understood that the features mentioned above and those to be explained below can be used not only in the combinations specified, but also in other combinations or on their own, without leaving the scope of the present invention.

[0030] The invention is schematically illustrated with reference to embodiments in the drawing and is described schematically and in detail with reference to the drawing.

[0031] Fig. 1a, Fig. 1b, Fig. Figure 1c shows, in schematic representation, an embodiment of the display system according to the invention from different perspectives when carrying out an embodiment of the method according to the invention.

[0032] The figures are described in a coherent and comprehensive manner. The same reference symbols are assigned to the same components.

[0033] Fig. Figure 1a shows a schematic sectional view of a component 2, which is arranged here in the interior of a vehicle designed as a motor vehicle. The in Fig. 1a also in sectional view and the Fig. 1b and Fig. 1c each schematically depicted in top view embodiment of the display system according to the invention has a strip-shaped flexible and bendable display field 4, a thermometer 6, a control unit 8, a receptacle 10 arranged in the component 2 for the display field 4 and a mechanism not shown further, which is arranged here in the component 2 and moves the display field 4 back and forth in this configuration.

[0034] Thermometer 6 is shown in the schematic sectional view from Fig. 1a is arranged outside component 2 in the interior. However, it can also be arranged in component 2, e.g. in and / or on the receptacle 10, and thus also in the interior, and be in direct thermal contact with the display field 4 in its configuration, if it is to be connected to or is connected to the display field 4.

[0035] The display field 4 is deformed depending on the movement performed and dynamically divided into three sections 12, 14, 16: a first external section 12, located outside the receptacle 10; a second internal section 14, located inside the receptacle 10; and a third curved section 16 between the external section 12 and the internal section 14. The external section 12 and the internal section 14 are each straight and / or planar.

[0036] When the display panel 4 is moved, it is pushed upwards by the mechanism and extended out of the receptacle 10. In doing so, the internal section 14 is partially pushed out of the receptacle 10. The external section 12 is also enlarged outside the receptacle 10. The curved section 16 of the display panel 4 is also moved along the display panel 4, whereby, due to a change in position, the display panel 4 is now bent in a different section 16 and thus subjected to a greater load than either of the other two straight sections 12 and 14. Furthermore, it is possible for the mechanism to push the display panel 4 downwards or into the receptacle 10.

[0037] This shows Fig. 1a Light sources 18, here designed as pixels, which are arranged distributed over all three sections 12, 14, 16 in the display field 4 and, in the embodiment of the method according to the invention, are designed to each display a first display content 20a, which is usually dependent on the temperature ( Fig. 1b) or second display content 20b ( Fig. 1c) of display field 4.

[0038] In this method, the thermometer 6 measures the temperature of the display field 4, at least the temperature of each curved section 16 and / or a straight section 12, 14 inside or outside the recess 10, and this measurement is evaluated by the control unit 8 over time. If it is determined that at least each curved section 16 and / or at least one straight section 12, 14 has a temperature in a given position that is lower than a specified minimum threshold, the control unit 8 activates the light sources 18 and automatically increases the brightness of the display content 20a, 20b generated or already generated by the light sources 18 and displayed or shown by at least one section 12, 14, 16, thereby automatically heating the at least one section 12, 14, 16 of the display field 4 by the now brighter light sources 18.

[0039] It is also possible that the display field 4 is automatically heated by and / or from the light sources 18 if, during a specified period of time, an air conditioning trigger function, which depends on the time and a temperature profile measured during that period, is smaller or less than a specified minimum threshold.

[0040] How Fig. As shown in Figure 1b, in a first situation, the display field 4 in the external section 12 and the curved section 16 shows the first display content 20a, in which a light, here white, display information is shown on a dark, here black and therefore colored, background. This information includes the Audi logo as a symbol and a time indication, here "10 SEK" for ten seconds, as text. In this first situation, the thermometer 6 measures a temperature that is lower than the minimum threshold value provided for this purpose.

[0041] Since the measured temperature value is lower than the minimum threshold provided for this purpose, the light sources 18 are controlled by the control unit 8 in such a way that the brightness of the light sources 18 is increased from a first value to a second value.

[0042] In the embodiment of the method presented here, the second display content 20b, now set in a second situation ( Fig. 1c) compared to the previous situation ( Fig. 1b) The first display content 20a is shown in a lighter color, whereby the second display content 20b is inverted and / or becomes inverted compared to the first display content 20a. In contrast to the first display content 20a, the second display content 20b, on the now white background, includes a dark, here black and therefore colored, display information with the same symbol and the same text.

[0043] The second display content 20b, here summed across all light sources 18, has a higher brightness than the first display content 20a. Due to the higher brightness of the second display content 20b, the display field 4 in at least one section 12, 14, 16 is heated.

[0044] As soon as the temperature measured by the thermometer 6 of at least one section 12, 14, 16 of the display field 4 is higher and / or greater than the maximum threshold provided for this purpose, the brightness of the light sources 18 of the display field 4 is reduced from the second value back to the first value, whereby, starting from the second display content 20b for the display field 4, the first display content 20a is automatically displayed again. Typically, the brightness value of the light sources 18 is set, updated, and / or changed depending on the measured temperature of at least one section 12, 14, 16 of the display field 4 if the measured temperature value lies outside a range of values ​​limited by the minimum and maximum thresholds.

[0045] If the brightness of at least one section 12, 14, 16 of the display field 4 is increased and / or enlarged from the first to the second value, starting from a temperature value that is lower than the minimum threshold, the at least one section 12, 14, 16 will be heated by the brighter light sources 18 for at least as long as necessary, and the higher brightness with the second value will be maintained until the temperature, starting from the minimum threshold, rises due to the higher brightness and becomes greater and / or higher than the maximum threshold or is above the intended value range.If the temperature of at least one section 12, 14, 16 increases from the minimum threshold and exceeds the maximum threshold due to heating resulting from the increased brightness, the brightness of the light sources 18 is reduced and / or decreased from the second value back to the first value, with the temperature decreasing again, and the brightness only increasing again from the first to the second value when the value of the decreasing temperature of at least one section 12, 14, 16 falls below the minimum threshold and is below the intended value range.

[0046] The text of the respective display content 20a, 20b indicates how long the currently set brightness value will be maintained. This text represents a remaining time (countdown) that informs the user when the currently set brightness value will be changed and / or updated, depending on the temperature. This temperature change is calculated and / or predicted by control unit 8 based on the currently set brightness value. Here, the text of the first display content 20a shows that the brightness will be increased from the first currently set value to a new value, in this case, the second value. The text of the second display content 20b shows that the brightness will be reduced from the currently set second value back to the first value after, for example, ten seconds. The first, here dark, orThe darker display content 20a is shown until the temperature of at least one section 12, 14, 16, which is cooling due to the low initial brightness value, falls below the minimum threshold calculated and / or predicted by control unit 8 and is outside the specified range. The second, brighter display content 20b is shown until the temperature of at least one section 12, 14, 16, which is heating due to the high second brightness value, exceeds the maximum threshold calculated and / or predicted by control unit 8 and is also outside the specified range.Overall, the brightness of the light sources 18, as currently set, is adjusted for as long and / or as short a time as the predicted temperature change will be within the specified range, whereby the brightness is changed from the current value to the new value when the minimum threshold is undershot as the temperature decreases, or when the maximum threshold is exceeded as the temperature increases. REFERENCE MARK: 2 components 4 Display field 6 Thermometer 8 Control unit 10 recording 12 external section 14 internal section 16 curved section 18 Light source 20a, 20b Display content

Claims

[1] Display system for a vehicle, wherein the display system comprises a flexible display field (4) with light sources (18) and at least one thermometer (6), wherein the display field (4) comprises at least one section (12, 14, 16) which is arranged in an interior of the vehicle, wherein the at least one thermometer (6) is configured to measure at least one temperature in the interior of the vehicle, wherein, in the event that at least one value of an air conditioning trigger function, which is dependent on the at least one measured temperature, deviates from a value range provided for this purpose during a period of time, a value of a brightness of the light sources (18) in the at least one section (12, 14, 16) of the display field (4) is to be changed, wherein the light sources (18) with the changed value of brightness are configured to air-condition the at least one section (12, 14, 16) of the display field (4). [2] Display system according to claim 1, wherein the light sources (18) are configured to heat or cool the at least one section (12, 14, 16) of the display field (4) depending on the set value of the brightness. [3] Display system according to claim 1 or 2, comprising a control unit (8) configured to detect the at least one temperature measured by the at least one thermometer (6), to determine values ​​of the air conditioning trigger function depending on this temperature, and to compare the determined values ​​of the air conditioning trigger function with the value range provided for this purpose. [4] Display system according to one of the preceding claims, wherein the at least one thermometer (6) is in thermal contact with the display field (4). [5] Method for operating a display system for a vehicle, wherein the display system comprises a flexible display field (4) with light sources (18) and at least one thermometer (6) arranged in an interior of the vehicle, wherein the display field (4) has at least one section (16) wherein at least one temperature in the interior of the vehicle is measured by the at least one thermometer (6), wherein in the event that at least one value of an air conditioning trigger function, which depends on the at least one measured temperature, deviates from a value range provided for this purpose during a period of time, a value of a brightness of the light sources (18) in the at least one section (12, 14, 16) of the display field (4) is changed, wherein the at least one section (12, 14, 16) of the display field (4) is air-conditioned by the light sources (18) with the changed value of brightness. [6] Method according to claim 5, wherein the at least one section (12, 14, 16) of the display field (4) is heated by the light sources (18) when a minimum value of the air conditioning trigger function is less than a minimum threshold provided for this purpose. [7] Method according to claim 5 or 6, wherein, for heating the at least one section (12, 14, 16) of the display field (4), a proportion of white luminous light sources (18) is increased and a proportion of black luminous light sources (18) is reduced, or wherein, for cooling the at least one section (12, 14, 16) of the display field (4), a proportion of black luminous light sources (18) is increased and a proportion of white luminous light sources (18) is reduced. [8] Method according to one of claims 5 to 7, in which it is determined how long a currently set value for the brightness of the light sources (18) is maintained for air conditioning the at least one section (12, 14, 16) of the display field (4), wherein a remaining runtime is displayed on the display field (4) indicating how long the currently set value for the brightness is maintained. [9] Method according to any one of claims 5 to 8, wherein a value of the air conditioning trigger function corresponds to a value of the at least one measured temperature, an average of the at least one measured temperature and / or a sum of several measured temperature values. [10] Method according to any one of claims 5 to 9, wherein a temperature of the display field (4) is measured directly and / or indirectly by the at least one thermometer (6).

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