CN107086008B

CN107086008B - Display apparatus and display device for vehicle and method of manufacturing display apparatus for vehicle

Info

Publication number: CN107086008B
Application number: CN201710074241.4A
Authority: CN
Inventors: S.哈夫纳; H.博泽; T.福格特
Original assignee: Robert Bosch GmbH
Current assignee: Robert Bosch GmbH
Priority date: 2016-02-12
Filing date: 2017-02-10
Publication date: 2021-10-01
Anticipated expiration: 2037-02-10
Also published as: GB2547338A; DE102016202150A1; GB2547338B; CN107086008A; GB201702253D0

Abstract

The invention relates to a display device (200) for a vehicle. The display device (200) comprises a display screen element (202) for displaying variable information at a display screen element primary side (212) of the display screen element (202); and a display element (100) having at least one structure (104) representing position-fixed information, wherein the display element (100) is arranged or arrangeable adjacent to a display element main side (212) of the display element (202) with a display element main side (214), and wherein a display element end side (106) of the display element (100) extending in a corner relative to the display element main side (214) forms an interface to a light source (206) for coupling electromagnetic radiation (108) emitted by the light source (206) into the display element (100) for illuminating the display element (100) for displaying the position-fixed information.

Description

Display apparatus and display device for vehicle and method of manufacturing display apparatus for vehicle

Technical Field

The invention relates to a display device for a vehicle and a method for manufacturing the same. Computer programs are also the subject of the present invention.

Background

In display systems in vehicles, such as combination meters, driving information, such as the real-time vehicle speed, is displayed by means of mechanical pointers and printed dials. In the case of a freely programmable combination meter (FPK), the complete presentation of the pointers and numbers and the presentation of the information takes place in one display.

DE 10004972 Al describes a display device in which a light guide plate provided with light-scattering particles is used for the effective front illumination of a display, preferably of a liquid crystal cell.

Disclosure of Invention

Against this background, the method according to the invention is described with the solution proposed here, in addition to a device or a controller using this method, and finally a corresponding computer program. Advantageous modifications and improvements of the device described in the invention are possible by means of the measures listed in the preferred and further embodiments.

The display element with the information representing the fixed position, in the case of illumination with a light source and in combination with a display screen element for displaying variable information, enables the display of information in an advantageous spatial depth.

The combination of the free presentation of the transformed information on the display or on the display screen element and the information about the mechanical components (which are positioned directly in front of the display screen element) which can be achieved according to the solution presented here can be responsible for additional appearance, depth effects and personalization by: a part of the information to be displayed is transferred to the separate presentation element located in front of the display. In the operation of the display system and of the illumination of the display element implemented according to the described embodiment, the impression can advantageously be created that the displayed information is free to float in front of the display. In the switched-off display system and the lighting unit switched off thereby, a distraction of the user of the display system can advantageously be avoided by complete or almost complete hiding of the information on the display element.

A display system implemented according to the principles presented herein can provide a high flexibility, in particular for presenting transformed information in a combination of the display screen element and the information displayed on the presentation element.

A display device for a vehicle is presented with the following features:

a display screen element for displaying variable information at a display screen element primary side of the display screen element; and

a display element with at least one structure representing position-fixed information, wherein the display element is arranged or arrangeable adjacent to a display element main side of the display element with a display element main side, and wherein a display element end side of the display element, which extends in a corner relative to the display element main side, forms an interface to a light source for coupling electromagnetic radiation emitted by the light source into the display element for illuminating the display element for displaying the position-fixed information.

The display device can be part of a combination meter designed as a digital display or part of an infotainment system of a vehicle. The display screen element can also be referred to as a display. For example, the display screen element can be referred to as a liquid crystal display element. The display screen element main side can be understood as the display surface of the display screen element facing the viewer. The variable information can be information about the change of the display location on the display screen element, for example an indicator of a combination meter. The display element can be realized in the form of a plate or plate from plastic or glass. The structure can be placed as a mechanical element into a volume of the display element, for example in the form of a depression or a material scraper. The fixed information can be present, for example, in the form of graduation marks of the instrument cluster. The display element main side and the display element main side can refer to the side with the largest dimension of the display element with respect to the display element. The display element end face can extend, for example, transversely to the display element main side and be part of a side edge of the display element.

According to one embodiment, the structure can be shaped such that at least one portion of the electromagnetic radiation coupled into the display element is decoupled from the display element at a further display element main side of the display element opposite the display element main side at a predefined angle relative to the further display element main side for displaying the positionally fixed information. The predefined angle can for example amount to 90 degrees. Thereby, a favorable spatial depth effect can be produced when viewing the display device, which depth effect can contribute to: the displayed information is more quickly and less misunderstood.

According to a further embodiment, the display element and/or the structure can be at least partially transparent to electromagnetic radiation in the spectral range visible to humans. In this way, the display element or its structure is hardly visible in the non-illuminated state of the display device and is thus not obtrusive or distracting to the user.

For example, the display element can have a plurality of structures. The structure can be a scale graphically shaped at the display element. This embodiment enables an advantageous distribution of the information to be displayed in the display device by transferring the fixed information to the outside of the display screen element.

It is also cost-effective that the display device has a reflective surface for reflecting the electromagnetic radiation. The reflective surface can be arranged or can be arranged opposite a side edge of the display element extending at a corner of the display element relative to the main side of the display element, or adjacent to a side edge of the display element or can be arranged. This embodiment of the solution described here can prevent electromagnetic radiation from escaping undesirably at the edges of the display element and also ensures an improved uniformity of the illumination of the display element.

According to one embodiment, the further display element main side can be anti-reflective. In this way, the information displayed at the display element can be better visible without disturbing reflections for the observer. In addition, a better spatial effect can be obtained.

The display device can also have a light guide with a coupling position and a decoupling position. The coupling position can be configured to: the light source is arranged for coupling the electromagnetic radiation into the optical waveguide. The decoupling position can be configured to: the display element is arranged on its end face in order to decouple the electromagnetic radiation from the display element. The use of light conductors not only allows for an advantageous saving of installation space, but also allows for the greatest possible flexibility in positioning the light sources.

For example, the optical waveguide can have a deflection section for deflecting the electromagnetic radiation. With this embodiment of the solution described here, too, a saving of installation space and a flexible design of the positioning of the light sources are possible.

According to one embodiment, the deflection section for deflecting the electromagnetic radiation has a sloping edge or a circular arc. In this way, the deflection of the electromagnetic radiation can be achieved in a simple and cost-effective manner.

For example, the deflection section can have a plurality of curved faces. The curved face can be configured to: the electromagnetic radiation is divided into a plurality of mutually spaced electromagnetic radiation bundles. This embodiment of the light guide achieves an advantageously uniform illumination of the display element.

The display device can also have a reflective element for reflecting the electromagnetic radiation. The reflective element is or can be arranged laterally to the light guide and thus effectively prevents a portion of the electromagnetic radiation from escaping from the light guide before being coupled into the display element.

According to one embodiment, the display device can have a light source for emitting the electromagnetic radiation. The light source can be arranged or can be arranged in an oriented manner toward a further display element main side opposite the display element main side. The light sources can for example be referred to as LEDs. The electromagnetic radiation emitted by the light source can refer to light in a spectral range that is visible to humans.

Also, the display device can have a frame element. The frame element can be configured for: at least partially circumferentially surrounding the display element. It is thereby possible to ensure that the display element is not visible in the switched-off state and thus acts unhindered on the attention of the user.

According to a further embodiment, the display device can have a carrier element for fixing the display element with respect to the display screen element. In this way, the display element can be combined quickly and simply with the display screen element in a positionally accurate manner.

Furthermore, a display device for a vehicle is described, having a display device according to one of the embodiments described herein. The display device can for example be a digital combination meter or a central display of an infotainment system of a vehicle.

Furthermore, a method for producing a display device for a vehicle is described, wherein the method comprises the following steps:

providing a display screen element for displaying variable information at a display screen element primary side of the display screen element;

providing a display element with at least one structure representing fixed-position information; and is

The display element main side of the display element is arranged adjacent to the display element main side of the display element, wherein the display element end side of the display element extending in a corner relative to the display element main side forms an interface to a light source for coupling electromagnetic radiation emitted by the light source into the display element for illuminating the display element for displaying the positionally fixed information.

The method can be performed fully or partially automatically during a manufacturing run.

Drawings

Embodiments of the principles described herein are illustrated in the accompanying drawings and will be explained in greater detail in the following description. The figure is as follows:

FIG. 1 is a schematic illustration of a display element with an optical conductor for a display device according to one embodiment;

FIG. 2 is a schematic cross-sectional view of a display device according to one embodiment;

FIG. 3 is a schematic view of a display device for a cluster tool according to one embodiment;

FIG. 4 is a detail of a display device for a cluster tool according to one embodiment;

FIG. 5 is a schematic view of a display device for a cluster tool in operation, according to one embodiment;

FIG. 6 is a schematic view of a display device for a cluster tool outside of operation according to one embodiment;

FIG. 7 is a cross-sectional view of a display device with particular features according to an embodiment;

FIG. 8 is a detail of a cross-sectional view of the display device of FIG. 7;

FIG. 9 is a cross-sectional view of the display device of FIG. 7 with an additional detailed feature;

FIG. 10 is a detail of a cross-sectional view of the display device of FIG. 9; and is

FIG. 11 is a flow diagram of a method for manufacturing a display device according to one embodiment.

Detailed Description

In the following description of advantageous embodiments of the invention, the same or similar reference numbers are used for elements which are shown in different figures and which act similarly, wherein repeated descriptions of these elements are omitted.

The novel principle described here of the illumination of the display element in front of the display system is explained below in conjunction with a display system for a motor vehicle, but can of course also be implemented for the display system in other areas and applications.

Fig. 1 shows a schematic representation of a display element 100 with a light guide 102 for a display device according to one exemplary embodiment. The display element 100 is configured to: information is displayed in conjunction with a display screen element of a digital display device and a depth effect is achieved in this case.

The display element 100 is in the form of a plate or disk of uniform thickness. According to one exemplary embodiment, display element 100 is embodied transparent to electromagnetic radiation in the spectral range that is visible to humans. In the embodiment shown in fig. 1, the display element 100 is composed of glass. Likewise, an embodiment can be realized in a transparent plastic.

In the exemplary embodiment shown in fig. 1, the display element 100 is designed as a disk which is largely circular and displays vehicle data in a combination instrument for a vehicle, for example a passenger car or a truck. In particular, the display element 100 shown in fig. 1 forms part of a speedometer for a vehicle and shows a scale with elevated speed values as information of the fixed position of the speedometer.

The speed value forms a fixed-position information of the speedometer and is placed into the volume of the display element 100 as a structure 104 representing the fixed-position information according to the solution described here. The structure 104 forms a reflective or mirrored surface for reflecting and making visible electromagnetic radiation, and may be produced in the display element 100, for example, by laser etching, sandblasting, or printing.

The display element end 106 of the display element 100 is arranged opposite the decoupling position of the light guide 102 and forms an interface for a light source for coupling the electromagnetic radiation emitted by the light source into the display element 100. The display element end face 106 is a section of the narrow side connecting the two main sides or surfaces of the display element 100 or a section of the side edge of the display element 100. The display element end face 106 runs at an angle of approximately 90 degrees with respect to the main side in the exemplary embodiment of the display element 100 shown in fig. 1.

The light conductor 102 is designed to: electromagnetic radiation 108 (here light 108 in the visible wavelength range) is guided from a light source arranged behind the display element 100 towards the display element 100 and is coupled into the display element 100 at the display element end side 106. The schematic illustration in fig. 1 shows a plurality of bundles of electromagnetic radiation 108 which are guided through the optical waveguide 102 and are deflected for: are coupled into the display element 100 in different directions through the display element end side 106. At the reflecting structure 104, which forms a so-called interference position, the bundle of electromagnetic radiation 108 is decoupled at an angle relative to the main side of the tray 100 and is thus visible to an observer of the display element 100. The generation of the reflecting structure 104 can be carried out with a laser at both surfaces of the glass disk 100 or at any depth within the glass.

To hinder: electromagnetic radiation 108 escapes at the side of the display element 100, the display element 100 of the example shown in fig. 1 has a reflective surface 110 at the side edge of the disk 100, in order to form the surface of the side edge in a reflective manner. The reflective surface 110 can, according to one embodiment, be a separate element attached to the side edge or a layer attached to the side edge, for example a silver coating.

Fig. 2 shows, in a schematic sectional view, the structure of an example of a display device 200 for a vehicle implemented according to the solution described here. In addition to the display element or disc 100 and the light conductor 102, the display device 200 includes a display screen element 202, a light source 206 arranged on a circuit board 204, and a reflective element 208.

The display screen element 202 is also referred to hereinafter as a display 202. The display screen element 202 refers to an electronic device for visualizing variable vehicle information on a display screen element main side 212 of the display screen element 202 facing a user or viewer 210 of the display device 200 when the display device 200 is used.

The display element 100 (which is used to display the positionally fixed information by means of at least one of the structures 104 illustrated in fig. 1) is a purely mechanical component with no electrical or electronic components, as opposed to the display screen element 202. The display element 100 is arranged with a display element main side 214 adjacent to the display element main side 212 of the display element 202, such that a further display element main side 216 opposite the display element main side 214 faces the viewer 210. The display element 100 is arranged parallel to the display screen element 202 by means of a carrier element.

The circuit board 204 with the light sources 206 is arranged parallel to the display screen element 202 and the display element 100 and oriented from the viewer 210 behind the display screen element 202, i.e. toward a further display screen element main side 218 opposite the display screen element main side 212. The light source 206 is thus positioned relative to the display screen element 202 and the display element 100 such that: such that the light source emits the electromagnetic radiation 108 transverse to the display screen element

major sides

212, 218 and display element

major sides

214, 216. As the light source 206, an LED 206 is used, for example.

The light guide 102 has a curvature of 90 degrees in the exemplary embodiment of the display device 200 shown in fig. 2 and extends below and in front of the display screen element 202.

The first end of the optical waveguide 102 directed towards the light source 206 forms a coupling location 220 of the optical waveguide 102 for coupling the electromagnetic radiation 108 emitted by the LED 206 into the optical waveguide 102. The second end of the light guide 102, which is oriented toward the display element end 106 of the display element 100, forms a decoupling point 222 of the light guide 102 for decoupling the electromagnetic radiation 108 from the light guide 102 into the display element 100 in order to illuminate the display element 100.

The curvature or meandering of the optical conductor 102 forms a deflection section 224 for deflecting the electromagnetic radiation 108. In the exemplary embodiment shown in fig. 2, the deflection section 224 is designed in the form of a hypotenuse. Alternatively, the deflection section 224 can also be formed by a circular arc. According to the exemplary embodiment shown in fig. 2, the deflecting section 224 also has a plurality of curved surfaces. This special shape of the deflection section 224 facilitates (as is schematically illustrated in fig. 2) that the electromagnetic radiation 108 coupled into the optical waveguide 102 is split into a plurality of (in this case three) radiation bundles 226, which are decoupled from one another and parallel into the display element 100 via the decoupling point 222. Thereby, a particularly uniform illumination of the display element 100 is achieved.

The reflective element 208 (also referred to as reflector 208 in the following) is designed to: scattering of electromagnetic radiation 108 that may escape from the optical conductor 102 is reflected back into the optical conductor 102. The reflective element 208 likewise has a curvature, which extends laterally of the light guide 102 from the coupling position 220 to the decoupling position 222.

The structure 104 forms a so-called interference position in the display element 100, which interference position facilitates the decoupling of at least a part of the electromagnetic radiation 108 (here two or three radiation bundles 226) coupled into the display element 100 from the display element 100 at the further display element main side 216 of the display element 100 at a predefined angle (here an angle of 90 degrees) in order to make the positionally fixed information represented by the structure 104 visible to the observer 210.

In order to also continuously improve the visibility of the displayed information and the effect of the depth effect for the observer 210, in the exemplary embodiment shown in fig. 2, the further display element main side 216 is also embodied in an antireflection manner.

By virtue of the light sources 206 being arranged behind the display 202, a one-sided optical coupling into the display element 100 is achieved, which advantageously enables a particularly homogeneous and bright illumination of the disk 100 even with a small number of light sources 206 and the production of a reflective surface on the remaining disk diameter on the basis of the processed structure 104. The use of a curved light guide 102 allows for a space-saving placement of the light source 206 behind the display 202.

According to embodiments, a plurality of light sources 206 and a corresponding plurality of light conductors 102 can also be employed.

The antireflection of the disk 100 and the covering of the edges of the disk 100 and of the coupling points 106 into the disk 100 by additional design elements lead to a floating effect when displaying information in the display device 200. The generation of the light decoupling position by the transparent surface of the structure 104 achieves a so-called vanishing effect of the content of the display device 200 in the non-illuminated state of the disc 100. In this way, in the switched-off state of the display system 200, interfering driving information is avoided.

The novel solution proposed here for the disk illumination section of a display device is briefly summarized in the following. A display element 100 to be illuminated, for example a glass plate, is mounted with a carrier in front of the display 202. Illumination of the tray 100 is performed via one or more LEDs 206 placed on the circuit board 204 behind the display 202. The light transmission of the LED 206 to the plate 100 is effected by means of a light guide 102 bent at 90 degrees, which is surrounded by the reflector 208. For a one-sided, homogeneous illumination of the disc 100, which is realized according to the solution presented here, the light deflection takes place in two steps. First, the light or the electromagnetic radiation 108 is deflected by the circular arc or oblique side of the deflection section 224 by 90 degrees, and subsequently the light 108 is deflected by the further curved side of the deflection section 224 into the three regions of the disk 100.

The electromagnetic radiation 108 is distributed by means of the deflection section 224 of the optical waveguide 102 into the three regions or radiation bundles 226 for uniform illumination of the disk 100. The angle of the face of the deflecting section 224 for separating the electromagnetic radiation 108 can be varied in such a way that: so that the best possible homogeneity for the respective disc content to be illuminated is achieved. In order to increase the homogeneity even further, according to one embodiment, the edge of the scale 100 is surrounded by the reflective surface 110, so that scattered light escaping laterally from the scale 100 is reflected back into the disk 100 again. The desired decoupling on the disk surface 216 is effected by producing the obstructing position 104, at which the light rays 108 are reflected and thus made visible. The interference locations 104 can be produced by printing, laser etching, sandblasting or other etching methods.

Fig. 3 shows an exemplary embodiment of the aspects described here of the illuminated portion in the form of an exemplary display device 200 of a combination instrument for a vehicle. For this purpose, three dials 100 are used in conjunction with the display screen element 202, namely two smaller disks and a larger disk arranged in the middle. The structure 104 representing the position-fixed information is provided here in the form of graduation marks 104 for the different instruments of the instrument cluster. In accordance with the approach presented herein, in operation of the illumination system integrated into the display device 200, the scale 104 is illuminated and appears to float in front of the instrument. The display screen element 202 is here in the form of a display with a bonded cover glass.

The uniform illumination of the glass plate 100, illustrated in connection with fig. 1 and 2, positioned in front of the display 202 is used to show additional driving information. In the embodiment of the display device 200 shown in fig. 3, a frame element 300 is additionally provided. The frame element 300 is designed here as a substantially circular chrome ring 300 in the size of the dial 100 and surrounds the dial 100 at least to the greatest extent. Thereby, the impression of the information provided for illuminating the scale 104 and the connecting technical means is covered and floating in front of the display 202 is advantageously enhanced.

In the display device 200 of the example shown in fig. 3, a front frame 302 is also provided, which is configured to: in the region of the light conductors and LEDs at the lower edge of the display device 200, the lighting and connection technology devices are covered and the observer's line of sight is avoided.

In the illumination of the disc 100, a distribution of the information displayed in the display system 200 onto the display 202 and the additional disc 100 is formed, which is positioned in a plane in front of the display 202. Information for the driver is present on the panel 100, which can be read by the integrated lighting unit. In the exemplary combination meter shown in fig. 3, three disks 100 convey different information in front of the display 202. In particular, by covering the disc edges via the decorative ring 300 and, if appropriate, additional antireflection of the disc 100, the impression is created that the information displayed by means of the structure 104 is free to float in front of the display 202. For switched off illumination, the information conveyed by the structure 104 of the disc 100 is no longer visible or only a small amount of visible.

With the embodiment of the solution presented here, which is shown in fig. 3, the advantages of the principle presented here can be seen to a considerable extent with the aid of the combination meter for a vehicle.

The combination of the free presentation of the transformed information on the display 202 and the information about the mechanical components, for example the structure 104, located directly in front of the display 202 in the disc 100, which can be achieved according to the solution described here, is responsible for additional appearance, depth effect and personalization for the display device 200. As already mentioned, by using the illuminated additional plate 100, a part of the information relevant for the driver (the positionally stable information) is transferred to a second plane in front of the display 202, while variable information (in the illustration in fig. 3, for example, the pointer of an instrument) is presented on a first plane of the display 202.

In operation of the display system 200, the disc 100 is illuminated and the impression is created that the information displayed by the disc 100 is free to float in front of the display 202. By means of the second plane, a depth effect, a so-called 3D effect, is generated more in operation of the display system 200. Additional information on the second plane can advantageously be combined with information on the display 202. Advantageously enhancing the appearance and personalization of the display system 200. For a switched-off display system 200 and thus switched-off illumination, the information is no longer visible or only a small amount is visible on the disk 100.

Fig. 4 shows a specific case of a display device 200 for the example of the combination meter in fig. 3. One of the three instruments of the combination meter of figure 3 is shown. In the illustration in fig. 4, the frame element in fig. 3 is omitted, so that the lighting and connection technology used can be seen. Shown is a carrier or carriage element 400. In the exemplary embodiment shown in fig. 4, the carrier element 400 is glued to the cover glass of the display 202 and serves to accommodate the dial 100 and the light conductor 102. The light conductor 102 is completely enclosed by a reflective surface in order to reduce light losses. Also visible are reflective surfaces 110 disposed on the lateral edges of the scale 100. In the embodiment shown in FIG. 4, the lateral edges of the scale 100 are completely enclosed by the reflective surface 110 to reduce the light loss.

Fig. 5 and 6 show, again with the aid of the embodiment of the illumination system described here as an example of an instrument display in a vehicle, a "black panel effect" or a "disappearing effect" which can be achieved in accordance with the solution described here.

Fig. 5 shows the display device 200 as part of a cluster of a vehicle in operation. In the switched-on illumination of the dial 100, the structure 104 (here in the form of the numerals and graduation lines of the speedometer display as fixed-position information) inserted into the dial 100 is illuminated and made visible to the observer. The frame element 300 covers the lighting and connection technology device in the form of a decorative ring. Variable or alternate content of a display screen element or display 202 located behind the dial 100 is visible on the side of the disc 100 as well as behind the disc 100 (e.g., as a pointer displaying a real-time velocity value).

Fig. 6 shows the exemplary display device 200 of fig. 5 out of operation.

The illumination of the dial 100 is turned off and the structure 104 displaying the positionally fixed information is not visible or hardly visible as non-illuminated disc content. Also, the display 202 is turned off and variable information is displayed neither behind the dial 100 nor beside the dial 100. The illustration in fig. 6 clearly shows a so-called vanishing effect or black-panel effect, in which in the switched-off state of the display system 200 no interfering driving information is visible.

In the exemplary embodiment of the display device 200 shown in fig. 5 and 6, the illumination of the disk 100 is again effected via LEDs, which couple light into the lateral disk edges. The display of the information on the disc 100 is achieved by creating areas of reflection on the glass surface at the structures 104 forming the interference locations. The light is decoupled from the disc 100 in the glass at the interference position 104 and thus the information is made visible to the observer. The disc 100 is enclosed by a frame 300, so that light escaping laterally from the disc edge is reflected back again. The tray 100 can be made of glass or of plastic, for example. The generation of the reflective surface of the structure 104 is effected, for example, by laser etching, sandblasting or printing. The generation of the reflecting layer 104 can take place at both surfaces of the glass disk 100 or at any depth in the glass with the use of a laser. Embodiments of the reflective surface are so constructed: such that this surface on the one hand provides a high reflectivity for light in the disk 100 and on the other hand is only marginally, up to completely, no longer perceptible for switched-off disk illumination and external illumination, for example in the form of ethernet sunlight.

The structures 104 forming the locations for the decoupling of the light from the disc 100 are, according to one embodiment, constructed transparently by using varnish or weak laser markings and are thus hardly visible in the non-illuminated state. The coupling points and the remaining disc edges are covered by design elements 300 in the form of a chrome ring and a front trim panel, so that if necessary, the antireflection disc 100 is not visible in a manner that can be perceived and thus only the illuminated decoupling points 104 are visible in a floating manner. The disc 100 can according to one embodiment be fitted between the carrier and the design element 300 by clamping. By means of the additional elastic sealing, according to one exemplary embodiment, the clip maintains the lifetime and additionally avoids interfering scattered light.

With the aid of the subsequent figures, an embodiment of an illumination structure of the illuminable disk 100 for presenting information in a display system is schematically realized.

Fig. 7 shows the exemplary display device 200 of fig. 3 in a sectional view along line a-a in fig. 3. The illuminable display element 100 is fastened at the display 202 by means of a carrier 400. The frame member 300 surrounds the side edges of the display member 100 in the form of a decorative ring.

Fig. 8 shows a detail of the display device 200 identified by means of a frame in fig. 7 in a sectional view. The illumination of the plate 100 or of the display element takes place as already explained via one or more LEDs 206, which are placed on a circuit board 204 behind the display 202. The light transmission of the LED 206 to the plate 100 takes place by means of a light conductor 102 bent at 90 degrees, which is surrounded by the reflector.

At the coupling location 220, the light emitted by the LED 206 is coupled into the light conductor 102. In the decoupling position 222, the light is coupled out of the light guide 102 into the disk or scale 100 in order to illuminate the structure placed in the disk 100. The carrier 400 for fastening the tray 100 at the display 202 is directly adhered to the cover glass 800 of the display 202. Furthermore, in the embodiment of the display device 200 shown in fig. 8, a sealing portion 802 is provided. The seal 802 is disposed between the display element 100 and the frame element 300 for gripping the dial 100 and assisting in preventing stray light from escaping from the display element 100 and liquid from entering the area between the dial 100 and the frame element 300.

Fig. 9 again shows the exemplary display device 200 of fig. 3 in a sectional view along the line a-a in fig. 3. In fig. 9, an area of an upper portion of the display apparatus 200 is identified by a frame.

Fig. 10 shows in a sectional view a detail of the display device 200 identified in fig. 9 by means of the frame. Here, the edge covering of the plate or of the display element 100 is preferably visible through the frame element 300. A further seal 802 arranged between the frame element 300 and the disk 100 also serves to clamp the disk 100 in this position and to prevent stray light from escaping and liquid from entering. The latching elements 1000 of the carrier 400 ensure the centering of the carrier 400 in the cover glass 800 of the display. The frame element or the chrome ring 300 is fixed at the carrier element 400 by means of a clamping head or a spring clip 1002. The clamping head 1002 is formed here in one piece with the frame element 300.

The section of the clamping head 1002 forms a reflection surface 110 for reflecting light, which escapes at the disc edge of the disc 100. Fig. 10 also shows an exemplary embodiment of one of the structures 104 for forming a decoupling position for electromagnetic radiation directed into the disc 100.

Fig. 11 shows a flow diagram of an embodiment of a method 1100 for manufacturing the novel display device embodiment shown in fig. 2 to 10. In one step provision 1102, a display screen element for displaying variable information is provided. In a further step of providing 1104, a display element is provided with at least one structure representing the fixed-position information. The steps of providing 1102 and 1104 can be performed in any order or simultaneously. In one step arrangement 1106, the display element is arranged with a display element main side adjacent to a display element main side of the display element, such that a display element end side of the display element extending at an angle relative to the display element main side forms an interface to a light source for coupling electromagnetic radiation emitted by the light source into the display element.

If an example includes an "and/or" association between a first feature and a second feature, this is to be understood in such a way that the example has the first feature as well as the second feature according to one embodiment and either only the first feature or only the second feature according to another embodiment.

Claims

1. Display device (200) for a vehicle, with the following features:

a display screen element (202) for displaying variable information on a display screen element main side (212) of the display screen element (202), the display screen element being an electronic device that can be interpreted as a display surface of the display screen element facing a viewer; and is

Display element (100) having at least one structure (104) representing positionally fixed information, wherein the display element (100) is arranged or arrangeable adjacent to a display element main side (212) of the display element (202) with a display element main side (214), and wherein a display element end side (106) of the display element (100) extending in a corner relative to the display element main side (214) forms an interface to a light source (206) for coupling electromagnetic radiation (108) emitted by the light source (206) into the display element (100) in order to illuminate the display element (100) for displaying the positionally fixed information.

2. The display device (200) according to claim 1, characterized in that the structure (104) can be shaped so as to decouple at least a part of the electromagnetic radiation (108) coupled into the display element (100) from the display element (100) at a further display element main side (216) of the display element (100) opposite to the display element main side (214) at a predefined angle relative to the further display element main side (216) for displaying the positionally fixed information.

3. The display device (200) according to claim 1 or 2, characterized in that the display element (100) and/or the structure (104) are at least partially transparent to electromagnetic radiation (108) in a spectral range visible to humans.

4. The display device (200) according to claim 1 or 2, wherein the display element (100) has a plurality of structures (104), wherein the structures (104) are shaped at the display element (100) in a scale-forming manner.

5. The display device (200) according to claim 1 or 2, characterized by a reflection surface (110) for reflecting the electromagnetic radiation (108), wherein the reflection surface (110) is arranged opposite a side edge of the display element (100) extending at an angle relative to a display element main side (214), or is arranged or can be arranged adjacent to a side edge of the display element (100).

6. The display device (200) according to claim 2, wherein the further display element main side (216) is anti-reflective.

7. A display device (200) as claimed in claim 1 or 2, characterized by a light guide (102) with coupling locations (220) and decoupling locations (222), wherein the coupling locations (220) are configured for: the light source (206) is arranged for coupling the electromagnetic radiation (108) into the optical waveguide (102), and the decoupling position (222) is designed to: the display element end face (106) is arranged for decoupling the electromagnetic radiation (108) from the display element (100).

8. The display device (200) according to claim 7, wherein the optical waveguide (102) has a deflection section (224) for deflecting the electromagnetic radiation (108), wherein the deflection section is configured for: deflecting said electromagnetic radiation (108) substantially at right angles.

9. The display device (200) according to claim 8, wherein the deflection section (224) for deflecting the electromagnetic radiation (108) has a hypotenuse or a circular arc.

10. The display device (200) of claim 8, wherein the deflection section (224) has a plurality of curved faces configured to: -dividing said electromagnetic radiation (108) into a plurality of mutually spaced electromagnetic radiation bundles (226).

11. A display device (200) as claimed in claim 7, characterized by a reflective element (208) for reflecting the electromagnetic radiation (108), which reflective element is arranged or can be arranged at a side of the light conductor (102).

12. The display device (200) according to claim 1 or 2, characterized by a light source (206) for emitting the electromagnetic radiation (108), wherein the light source (206) is arranged or arrangeable oriented towards a further display element main side (218) opposite to the display element main side (212).

13. The display device (200) according to claim 1 or 2, characterized by a frame element (300) configured for: at least partially circumferentially enclosing the display element (100).

14. The display device (200) according to claim 1 or 2, characterized by a carrier element (400) for fixing the display element (100) with respect to the display screen element (202).

15. Method (1100) for producing a display device (200) for a vehicle, wherein the method (1100) has the following steps:

providing (1102) a display screen element (202) for displaying variable information on a display screen element main side (212) of the display screen element (202), the display screen element being an electronic device, which can be understood as a display surface of the display screen element facing a viewer;

providing (1104) a display element (100) with at least one structure (104) representing fixed-position information; and is

Arranging (1106) a display element main side (214) of a display element (100) adjacent to a display element main side (212) of the display element (202), wherein a display element end side (106) of the display element (100) extending in a corner relative to the display element main side (214) forms an interface to a light source (206) for coupling electromagnetic radiation (108) emitted by the light source (206) into the display element (100) for illuminating the display element (100) for displaying the positionally fixed information.