DE102022001650A1 - Screen layout - Google Patents

Abstract

The invention relates to a screen arrangement for a vehicle, comprising a screen and a control unit for controlling the screen, the screen having a continuous, coherent imaging display surface with a driver-side section that is backlit by a light source and a passenger-side section of the screen that can be backlit with the light source or another light source has, wherein the control unit is designed to switch the screen between a first mode and a second mode, wherein in the first mode content displayed by backlighting with the light source on the driver-side section and on the passenger-side section is visible to the driver and front passenger, and in In the second mode, content displayed for the driver on the driver-side section backlit with a predetermined brightness level of the light source is visible, while content displayed on the passenger-side section backlit with a predetermined further brightness level of the further light source is visible to the passenger and is not visible to the driver due to activation of a privacy device are, wherein the control unit is designed to control the display area to display a bar in the area of the transition from the driver-side section to the passenger-side section during the second mode of the screen.

Description

The invention relates to a screen arrangement for a vehicle, and a vehicle with such a screen arrangement.

Screens in vehicles are increasingly replacing analogue instruments. In addition, it is advisable to use screens for entertainment purposes, especially for other occupants. For example, a passenger seat can be assigned its own screen (or its own screen area in the case of a continuous screen between the driver's side and the passenger's side). There is a risk that, for example, when the passenger watches a film on his screen or his screen area, the driver of the vehicle will be distracted while driving. In the prior art, a switchable passenger display was developed to solve this problem, through which the passenger screen or the passenger screen area can either be seen by the driver, depending on the desired mode, or remains hidden from the driver while the image is displayed, in particular by using appropriate privacy films and lighting units of the passenger screen or the passenger screen area is still visible to the passenger.

The DE 10 2019 005 193 A1 relates to a filter for a passenger display, which is designed to be switchable to prevent a sideways view of the passenger display, with a static and a switchable privacy film being arranged one above the other and each privacy film being assigned a light source for illuminating it, with a side view being permitted In public mode, the light source assigned to the static privacy film is switched off and the light source assigned to the switchable, passively switched privacy film is switched on, while in a private mode that prevents the side view, the light source assigned to the static privacy film and the light source assigned to the switchable, actively switched privacy film are switched off.

However, if a single screen extending from the driver's side to the passenger's side is used instead of two separate screens for the driver and passenger, when the passenger's side screen area is blocked out for the driver in the transition area between the driver's side and the passenger's side display field, light may be scattered the lighting of one area comes to the other area. This is particularly the case with screens with appropriate lighting, especially backlighting such as LCD screens, and can occur from the different levels of lighting in the driver's side area to the passenger's side area and vice versa. If such an effect occurs, the image quality is reduced at least in the respective sections of the interference. A desired clear separation of the two halves of the display can suffer when such effects occur and the transition between the two areas can appear blurred.

It is therefore the object of the invention to prevent a blurred transition area between a driver-side and a passenger-side area of a screen with a continuous display area extending between the sides of a vehicle, in particular if the passenger-side area of the screen is between a mode visible to the driver and one for the Driver invisible mode regarding the content can be switched.

The invention results from the features of the independent claims. Advantageous further developments and refinements are the subject of the dependent claims.

A first aspect of the invention relates to a screen arrangement for a vehicle, comprising a screen and a control unit for controlling the screen, the screen having a backlit, continuous imaging display surface with a driver-side section backlit by a light source and a driver-side section backlit with the light source or a further light source Passenger-side section of the screen to display content for both a driver of the vehicle and a passenger, the control unit being designed to switch the screen between a first mode and a second mode, in the first mode by means of the backlit light source The driver-side section and the passenger-side section are each visible to the driver and front passenger, and in the second mode, content displayed to the driver on the driver-side section backlit with a predetermined brightness level of the light source is visible while on the driver-side section with a predetermined further brightness level by means of the further light source Contents displayed in the backlit passenger-side section are visible to the passenger and are not visible to the driver by activating a privacy device, the control unit being designed to control the screen during the second mode in such a way that on the display area in the area of the transition from the driver-side section to the passenger-side Section a bar can be created.

The bar is created in such a way that there is no display area in the driver's side section Light interference from the light source backlighting the passenger side section and no light interference from the light source backlighting the driver side section is visible in the passenger side section. For the purposes of the application, light scattering essentially means brighter light scattering into a darker area. In other words, light scattering is understood to mean light scattering from a light source backlighting a section of a display surface into another section backlighting with a lower brightness.

The screen has a display surface, which is, for example, mounted in a frame of the screen or is held frameless only from the back of the display surface by holding elements of the screen. The display surface, for example designed as a liquid crystal layer, is backlit, i.e. it has illumination with light sources, which in particular represents a backlighting device, i.e. a backlight like that of an LCD screen. In particular, the screen has such dimensions that, when installed in a vehicle, it covers both a driver-side and a passenger-side area, so that content such as technical information or entertainment information can be output for the driver as well as by the passenger through a single coherent display area. For this purpose, the screen has dimensions in particular such that it extends across the width of the vehicle when installed, i.e. in particular from the left pillar to the right pillar at the same height.

Because the driver half and the passenger half of the screen are characterized by different controls for separate visibility for the driver and passenger, the screen can therefore be separated into a driver-side section and a passenger-side section and viewed in logical sections. The driver's side display area is determined by the backlighting device for the driver's side, the passenger's side display area is determined by the backlighting device on the passenger's side, each in the second mode. This does not mean that a physical boundary is necessarily visible on the display surface, but a corresponding technical solution must be provided, at least on the passenger side section, which ensures that the contents of the passenger side are not visible to the driver in the second mode of the screen. Because of these technical solutions, the lighting of the section on the passenger side can typically be controlled independently of the lighting on the driver's side of the screen in conjunction with a device to prevent viewing from the driver's side, for example a privacy film. Typically, in the second mode, the brightness of the backlighting on the driver's side and the passenger's side are different, so that without further measures an undefined area would form between the driver's and passenger's side sections. The different brightness can be desired and specified by the user in the second mode, i.e. the driver, for example, wants a dark screen area and the passenger wants a brighter screen area. Even if a uniform brightness is desired on the imaging unit on the driver and passenger sides, the brightness of the background lighting on the passenger side must be set significantly higher than on the driver side due to the absorbing privacy device due to the system, which in itself creates the undefined area mentioned above.

This logical and technical separation of the driver's side section and the passenger's side section of the screen determines the positioning of the bar. The bar is generated on the display surface so that it extends over a height of the display surface along the imaginary interface between the driver-side section and the passenger-side section. The bar preferably has a height that corresponds to the entire height of the display area, so that the bar extends over the entire height of the display area (from top to bottom when installed in the vehicle).

Accordingly, an area of the display area on the driver-side section and an area of the display area on the passenger-side section of the screen border one another, with this transition from the driver-side section to the passenger-side section of the screen and thus the display area in particular along a transverse direction to the width of the display area and in the Plane of the display surface extends, and in a state of the screen installed in the vehicle extends essentially vertically.

Furthermore, the bar is preferably produced with a predetermined width, which extends in a horizontal direction when the screen is installed in the vehicle.

In other words, the control unit is preferably designed to control the display area during the second mode of the screen to display a bar with a predetermined width that extends over the entire height of the display area and which starts from the boundary between the driver-side section and the passenger-side section in the driver side Section and/or the passenger side section protrudes.

It is an advantageous effect of the invention that the above-mentioned disadvantage of the mutual interference of light from illuminating one area into the other area is eliminated. The transition between the sections on the display area is therefore no longer perceived as fuzzy and blurry, but rather creates a valuable impression.

According to an advantageous embodiment, the display surface is designed to generate the bar in that that area of the display surface in the passenger-side section into which a background light from the driver-side section is scattered, and that area of the display surface in the driver-side section into which a backlight from the passenger-side section interspersed, covered by imaging.

This coverage of the areas of the display area into which light from illumination emanating from the other section is scattered is realized in accordance with this embodiment by imaging functions of the display area. For example, a black bar is displayed or a bar in another specified color. The bar preferably has a smooth transition at its section-side end into the respective section, in that, starting from the central transition of the sections into one another, the bar has a transparency gradient at its left and / or right end, with increasing transparency of the color displayed to the content there.

According to a further alternative or additional advantageous development, the display is designed to at least partially generate the bar on the display area by at least partially switching off the further light source background lighting of that area in the passenger-side section, the light of which scatters into the display area in the driver-side section, and that the light source of the backlight of the area in the driver's side section whose light scatters into the display area in the passenger's side section is switched off.

According to this embodiment, the bar is realized by darkening the respective lighting by reducing the lighting in the area around the imaginary dividing line discussed above to such an extent that no light falls into the opposite section via the spacing of the still active light sources, but rather a darkened dividing area trains. The selective darkening of the background lighting can be usefully combined with the generation of a bar by the imaging unit, i.e. the display area.

According to a further advantageous embodiment, the control unit is designed to generate the bar by imaging a predetermined color. The color is preferably generated by the display surface itself, without any influence on the lighting.

According to a further advantageous embodiment, the specified color is the same as the ambient color in the vehicle specified by a user. Such an ambient color is emitted, for example, by LED lighting elements in the vehicle in order to create a corresponding color mood in the vehicle interior. A uniform mood image in the vehicle interior is advantageously created by adjusting the color of the image-generated bar to the color of the remaining ambient lighting.

According to a further advantageous embodiment, the color and/or light intensity of the bar are constant throughout during the second mode of the screen. This advantageously creates an inconspicuous appearance of the bar for the viewer and leads to a neglected perception of the bar itself.

According to an alternative or further advantageous embodiment, the control unit is designed to determine the width of the bar in a dependent manner such that a larger width of the bar is generated as the brightness of the light source and/or the further light source increases. The width of the bar is preferably adapted to the brighter of the two, i.e. the light source and the other light source. This advantageously takes into account the fact that the above-described interference of light from the background lighting of the adjacent display surface is more clearly perceptible the higher its absolute brightness level is.

According to an alternative or further advantageous embodiment, the control unit is designed to increase the width of the bar as the difference between the brightness levels of the light source of the backlit driver-side section and the further light source of the backlit passenger-side section increases. The light interference is all the more noticeable on the display surface if, in the second mode, the brightness of the backlit driver-side section is all the lower and the passenger-side section is all the higher, or the brightness of the backlight The driver's side section is all the higher and the passenger side section is all the lower. This means that a side of the display surface that is darker due to the corresponding setting of the background lighting means that the contents in the edge areas are disturbed by the light scattering of the brighter side due to blurring or discontinuous color gradient. This interference becomes stronger the greater the differences in brightness of the background lighting striking the two sections of the display area. The width of the beam is advantageously adjusted depending on the extent of disturbing interference.

According to a further advantageous embodiment, the control unit is designed to determine the width of the bar depending on an ambient brightness determined by means of brightness sensors in such a way that a larger width of the bar is generated as the ambient brightness decreases. This embodiment takes into account the fact that the above-described light scattering from the illumination of the display surface has a smaller effect with increased ambient brightness, and the bar can therefore be made narrower.

According to a further advantageous embodiment, the control unit is designed to dynamically limit the area for outputting content on the remaining imaging display area outside the bar, depending on a width of the bar, so that the bar does not cover any information content. In other words, the area of the two sections on the display area intended for displaying content becomes smaller as the bar width increases.

According to a further advantageous embodiment, the control unit is designed to display a frame to indicate the second mode on at least one of the sections on the remaining display area outside the bar, the bar being part of the frame. The frame to indicate the second mode and the bars flow seamlessly into one another. The frame serves to inform the driver and passenger of the vehicle that the second mode is activated.

Another aspect of the invention relates to a vehicle with a screen arrangement as described above and below.

Advantages and preferred developments of the proposed vehicle result from an analog and analogous transmission of the statements made above in connection with the proposed screen arrangement.

Further advantages, features and details emerge from the following description, in which at least one exemplary embodiment is described in detail - if necessary with reference to the drawing. Identical, similar and/or functionally identical parts are provided with the same reference numerals.

• 1: Einen Innenraum eines Fahrzeugs mit einer Bildschirmanordnung gemäß einem Ausführungsbeispiel der Erfindung.
• 2: Einen Bildschirm aus der Bildschirmanordnung der 1 detaillierter.
• 3: Den Aufbau einer Anzeigefläche zur Verwendung in einem Ausführungsbeispiel der Erfindung.

Show it:

• 1 : An interior of a vehicle with a screen arrangement according to an embodiment of the invention.
• 2 : A screen from the screen layout of the 1 more detailed.
• 3 : The structure of a display area for use in an embodiment of the invention.

The representations in the figures are schematic and not to scale.

1 shows a vehicle 3 with a screen arrangement 1. The screen arrangement 1 has a screen 5 and a control unit 7 for controlling the screen 5, the screen 5 itself in turn has a backlit, continuous imaging display area 9 via a driver-side section 11 and a passenger-side section 13 of the Screen 5 to display content such as technical information or entertainment information for both a driver of the vehicle 3 on a left side of the vehicle and for a passenger on a right side of the vehicle. The screen 5 and almost the entire continuous display area 9, which are visually indistinguishable for the driver and front passenger, at least when switched off, extend from a left side of the vehicle to a right side of the vehicle. The control unit 7 controls the screen 5 to switch between a first mode and a second mode as required. In the first mode, content displayed on the driver side section 11 and the passenger side section 13 are visible to the driver and passenger, respectively, so that content displayed on the passenger side is visible to the driver and content displayed on the driver side is visible to the passenger. In the second mode, on the other hand, content displayed on the driver-side section 11 is visible to the driver, while content displayed on the passenger-side section 13 is visible to the front passenger by a privacy device activated by the control unit and is not visible to the driver. For more detailed information on the structure of screen 5, see 2 , which corresponds to screen 5 of the 1 corresponds and in 2 is drawn in more detail.

2 shows the screen 5 from the vehicle 3 1 more accurate. The screen 5 has a single, continuous imaging display area 9, which extends over a driver-side section 11 and a passenger-side section 13. During the second mode of the screen 5, the control unit 7 controls the display area 9 to display a bar 15 in the area of the transition from the driver-side section 11 to the passenger-side section 13. The bar 15 is in the 2 marked by the width B and is delimited by the dashed lines. The bar 15 thus extends over the entire height of the display surface 9 and with a predetermined width B around the transition between the two sections 11, 13.

3 shows as background information a possible structure of the display area 9 with the driver-side section 11 on the left side and the passenger-side section 13 on the right side, in contrast to 2 , in which a top view of the display surface 9 is shown, in which 3 a viewing direction in the plane of the display surface 9, ie a section through the screen 5 is shown. The width of the bar is again marked with a large B, which is determined depending on the spacing of the backlit light sources 19, 21 from the display surface 9 and depending on the scattering angle of the light so that the light rays shown by arrows meet at the intersection S and from there, crossing areas are covered by the width B of the bar, or the lighting is reduced to such an extent that a darkened area is created in the width B.

The first and second modes of the screen 5 are obtained through the imaging display surface 9, a light source 19, a privacy device 20 and a further light source 21. The further light source 21 includes lighting for backlighting the passenger side for the second mode. In principle, depending on the distance of the light source 21, i.e. for example the LEDs closest to the dashed line between the driver and passenger side display area 11, 13 scatters light into the driver side display area 11. The privacy device 20 is designed as a switchable privacy film known from the prior art for directing the light for the second mode. The activated privacy film 20 prevents the screen contents from being recognized from a given viewing angle of, for example, less than 30° to the screen surface, i.e. at an viewing angle of 90° to 30° to the screen surface, the contents are visible, but not below 30°. The switched privacy film 20 thus prevents the driver from recognizing image content in the display area 11, 13 on the passenger side. The light source 19 includes lighting for the first mode for the driver and passenger side display area and lighting in the second mode for the driver side display area 11. In other words, in the first mode, the light source 19 is switched on over the full width, in the second mode Light source 19 is switched on in the driver-side display area 11 and switched off in the passenger-side display area 13, the backlighting of the passenger-side display area 13 is then carried out by the further light source 21, which is now switched on. In the second mode, the part of the light source 19 that backlights the driver-side area also scatters here, depending on the distance The border between the driver and passenger side display area 11, 13, shown in dashed lines, is in principle in the passenger side display area 13. The continuous display area 9 is the imaging unit for the driver and passenger, which has LCD elements, for example. If the backlighting of the display area 9 generated by the light sources 19, 21 in the driver's and passenger's display areas 11, 13 is very different, the light scattered from the brighter into the darker display area is perceived as particularly disturbing. The above-mentioned measures according to the invention avoid the creation of an undefined area and unwanted changes to information content.

Although the invention has been illustrated and explained in detail by preferred embodiments, the invention is not limited by the examples disclosed and other variations may be derived therefrom by those skilled in the art without departing from the scope of the invention. It is therefore clear that a large number of possible variations exist. It is also to be understood that exemplary embodiments are truly examples only and should not be construed in any way as limiting the scope, application, or configuration of the invention. Rather, the preceding description and the description of the figures enable the person skilled in the art to concretely implement the exemplary embodiments, whereby the person skilled in the art can make a variety of changes with knowledge of the disclosed inventive concept, for example with regard to the function or the arrangement of individual elements mentioned in an exemplary embodiment, without departing from the scope of protection defined by the claims and their legal equivalents, such as further explanations in the description.

QUOTES INCLUDED IN THE DESCRIPTION

This list of documents listed by the applicant was generated automatically and is included solely for the better information of the reader. The list is not part of the German patent or utility model application. The DPMA assumes no liability for any errors or omissions.

Cited patent literature

• DE 102019005193 A1 [0003]

Claims (11)

Screen arrangement (1) for a vehicle (3), comprising a screen (5) and a control unit (7) for controlling the screen (5), characterized in that the screen (5) has a continuously coherent imaging display area (9) with a has a driver-side section (11) that can be backlit by means of a light source (19) and a passenger-side section (13) of the screen (5) that can be backlit with the light source (19) or another light source (21), the control unit (7) being designed to do this, to switch the screen (5) between a first mode and a second mode, wherein in the first mode content displayed on the driver and passenger side section (11, 13) backlit by the light source (19) is visible to the driver and passenger, and In the second mode, content displayed for the driver on the driver's side section (11) backlit with a predetermined brightness level of the light source (19) is visible to the driver, while content displayed on the passenger's side section (13) backlit with a predetermined further brightness level of the further light source (21). are visible to the passenger and are not visible to the driver by activating a privacy device (20), the control unit (7) being designed to use the screen (5) to generate a bar (15) on the display area (9) during the second mode. in the area of the transition from the driver-side section (11) to the passenger-side section (13). Screen arrangement (1). Claim 1 , wherein the display surface (9) is designed to generate the bar (15) by that area of the display surface (9) in the passenger-side section (13) into which a background light from the driver-side section (11) is scattered, and / or that area of the display surface (9) in the driver's side section (11), into which a background light from the passenger's side section (13) is scattered, is covered by imaging. Screen arrangement (1). Claim 1 or 2 , wherein the display (5) is designed to generate the bar (15) on the display surface (9) by at least partially switching off the further light source (21) of the background lighting of that area in the passenger-side section (13), whose light scattered into the display area (9) in the driver-side section (11), and/or that the light source (19) of the background lighting of that area in the driver-side section (11) is at least partially switched off, the light of which enters the display area (9) in the passenger-side section ( 11) sprinkled. Screen arrangement (1). Claim 2 , wherein the control unit (7) is designed to generate the bar (15) by imaging a predetermined color. Screen arrangement (1). Claim 4 , where the specified color is equal to the ambient color in the vehicle (3) specified by a user. Screen arrangement (1) according to one of the preceding claims, wherein the control unit (7) is designed to determine the width of the bar (15) in such a way that as the brightness of the light source (19) and/or the further light source (21) increases larger width of the bar (15) is generated. Screen arrangement (1) according to one of the preceding claims, wherein the control unit (7) is designed to adjust the width of the bar (15) with increasing difference between the brightness levels of the light source (19) of the backlit driver-side section (11) and the further light source ( 21) of the backlit passenger side section (13). Screen arrangement (1) according to one of the preceding claims, wherein the control unit (7) is designed to determine the width of the bar (15) depending on ambient brightness in such a way that a larger width of the bar (15) is generated as the ambient brightness decreases. Screen arrangement (1) according to one of the preceding claims, wherein the control unit (7) is designed to, depending on a width of the bar (15), the area for the output of content on the remaining display area (9) outside the bar (15). to limit so that the bar (15) does not cover any content. Screen arrangement (1) according to one of the preceding claims, wherein the control unit (7) is designed to display a frame for identifying the second mode on at least one of the sections on the remaining display area (9) outside the bar (15), the bar (15) is part of the frame. Vehicle (3) with a screen arrangement (1) according to one of the preceding claims.

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