DE102019207515A1 - Operating device and a method for operating such an operating device - Google Patents

Abstract

The invention relates to an operating device (10) which, as a layer composite (12), has a carrier layer (14), a touch-sensitive input layer (18), a first output layer (20) with at least one switchable light-emitting element at least partially enclosed by a first cloudy envelope layer (30) (22) and a second cloudy coating layer (32). A control device (34) of the operating device (10) is designed to control the at least one luminous element (22) to output a luminous signal emitted in the at least one cloudy envelope layer (30) as a function of a user input detected by means of the touch-sensitive input layer (18).

Description

The invention relates to an operating device for outputting a light signal as a function of a detected user input. The invention also relates to a method for operating such an operating device. The operating device can be designed like a sheet of cardboard or a sheet of paper.

In this context, an operating device is a combined input and output device which is set up to acquire a user input and to cause an output as a function of the acquired user input. In the case of proximity and / or touch-sensitive operating devices, the user input is determined, for example, on the basis of a detected touch of a user on a surface of the operating device. In response to the captured user input, the output is output as a light signal, for example. In particular, high demands are made on the surface of the operating device, for example with regard to functionality and perception and tactility.

The US 2018/0010299 A1 describes a process for the production of a transparent-cloudy paper based on wood fibers for electronic, photonic and optoelectronic applications. One embodiment explains an optical screen, a transparent, cloudy paper layer being arranged on an OLED layer in order to reduce a glare effect when it is used outdoors. Another embodiment describes a touch-sensitive screen with a flexible and opaque, transparent paper layer arranged on a conductive graphene layer.

The WO 2005/078566 A1 explains a touch-sensitive display device with an envelope layer comprising a programmable screen, which has static and / or dynamic output elements, such as symbols, and emitting and / or reflective partial areas, for example organic light-emitting diodes and / or electronic paper. A transparent protective layer whose haptic features are paper-like is arranged on the outside of the covering layer.

Furthermore describes the CN 203639750 U a multi-layer paper-based wallpaper, with micro-LEDs arranged on a microporous film layer for illumination.

The object of the present invention is to provide an operating device for outputting a light signal as a function of a captured user input.

This object is achieved by the subjects of the independent claims. Advantageous configurations with useful and nontrivial developments of the invention are specified in the dependent claims, the following description and the figures.

The operating device according to the invention is designed as a layer composite. In this case, several flat layers arranged next to one another form the layer composite and can have functions that differ from one another and / or a respective material quality. Essential components of the operating device that will be explained in detail later are two cloudy covering layers, a first cloudy covering layer being at least partially perforated by at least one switchable light element, for example a semiconductor element, in particular a microLED (LED). “Cloudy” means, in particular, a partially transparent and / or light-scattering and / or cloudy material.

The operating device comprises a carrier layer for specifying a rigidity of the layer composite. A resistance of the layer composite to elastic deformation is specified when at least one force acts on the operating device and / or at least one moment acts on the operating device. The carrier layer can be designed, for example, as a film, in particular as a plastic film or a metal film. For example, the carrier layer is resilient, that is to say elastic. As an alternative or in addition, at least one of the two cloudy envelope layers, together with the carrier layer, can give the layer composite a resilience.

A proximity and / or touch-sensitive input layer is arranged on a front side of the carrier layer. The input layer is designed to capture a user input and can be based on various functional principles, for example a resistive, capacitive and / or inductive functional principle. Depending on the functional principle, the input layer is configured differently and can, in particular, record a user input based on the touch of a user. As an alternative or in addition, the touch-sensitive input layer can be arranged within the layer composite at a position deviating from the front side of the carrier layer. As an alternative or in addition, the touch-sensitive input layer can be dispensed with and instead the user input determined by means of an external detection unit, for example a camera, can be provided via a communication connection of the operating device.

A first output layer with at least one switchable luminous element for outputting a luminous signal is arranged on the input layer. In this case, for example, a respective electrical connection and / or a respective mechanical fastening of the at least one luminous element is provided by the first output layer embodied as a printed circuit board. The at least one light-emitting element is, for example, the semiconductor element, in particular the microLED (LED light-emitting diode), that is to say a light-emitting diode that forms a single picture element (pixel). The advantage of using microLEDs is that, compared to organic light-emitting diodes, so-called OLEDs, they have a longer service life and a higher and more constant light output over time. Furthermore, a high-contrast and energy-efficient display of the light signal can be realized using micro LEDs. In addition, micro-LEDs are temperature-resistant and therefore suitable for use in a motor vehicle. The light signal is, for example, dynamic display symbols that are output as a function of the captured user input.

A first opaque covering layer is arranged at least partially directly on the first output layer, and a second cloudy covering layer can be arranged on a rear side of the carrier layer. In this case, the composite layer of the operating device is at least partially, preferably completely, delimited to the outside by the two covering layers. As a result, layers of the operating device that differ from the two covering layers, that is to say other layers arranged between the two covering layers, can be protected, that is to say from external influences that may impair the functionality of the operating device, such as moisture and / or soiling. In addition, both cover layers can provide a characteristic surface texture that points outwards and can be perceived by a user, such as a roughness and / or a surface temperature and / or color. In this context, a thickness and / or a mass coverage of the layer composite, in particular of at least one of the two shell layers, can be specified. For example, the mass coverage is given as weight per square meter, that is, as grams per square meter.

The first cloudy covering layer at least partially encloses the at least one luminous element, so that the at least one luminous element protrudes at least partially into the first cloudy covering layer. Thus, the at least one luminous element protruding from the output layer is embedded by the first cloudy envelope layer, the at least one luminous element at least partially perforating the cloudy envelope layer. The first cloudy covering layer attenuates and / or scatters, that is to say reduces the luminous signal generated by means of the at least one luminous element. This means that the light signal is only transmitted to a limited extent. The restricted transmission can in particular be described by means of a degree of transmission, that is to say that portion of the luminous signal which penetrates the respective envelope layer. The required degree of transmission is specified in particular by a geometric arrangement of the first cladding layer in relation to the at least one output element. If the first cloudy covering layer completely embeds the at least one luminous element, the transmittance is in particular less than 90% and greater than 10%. The at least one luminous element can be enclosed in the covering layer or protrude through the covering layer to the outer surface thereof, so that the at least one luminous element reaches the surface of the first cloudy covering layer. When an enclosed luminous element generates its light or its part of the luminous signal, this is visible from the outside on the outer surface through the cloudy material of the covering layer. If, on the other hand, it is provided that the at least one luminous element at least partially delimits the operating device to the outside, i.e. protrudes completely from the covering layer, that is to say it closes off together with the first cloudy covering layer, then the first cloudy covering layer can also be non-transparent, that is to say opaque and the transmittance of the first cloudy cladding layer be equal to 0%. In this context, the second cloudy coating layer can have optical properties of the same type or different from the first coating layer. Alternatively or in addition, the respective cloudy envelope layer can also be transparent.

Furthermore, the operating device comprises a control device which is designed to control the at least one light-emitting element as a function of the user input captured by the input layer. The user input is used to generate a respective user input signal that is evaluated by the control device. Using the evaluated user input signal, the control device specifies lighting parameters, for example a lighting duration and / or a lighting intensity, of the lighting signal to be output for the at least one lighting element. The control device here comprises a processor device which has at least one microprocessor and / or at least one microcontroller and / or at least one FPGA (Field Programmable Gate Array) and / or at least one DSP (Digital Signal Processor). Furthermore, the processor device can have an executable program code which can be stored in a data memory of the processor device.

Furthermore, the operating device can have an accumulator for the electrical supply of the operating device, a storage device, an acoustic output device such as a loudspeaker for outputting a signal tone, a haptic output device such as a vibration element for outputting a haptic signal, an acoustic detection unit such as a microphone , for alternative detection of the user input, a gyrometric sensor device for determining a change in direction of the operating device and a communication device for establishing at least one communication connection, for example the communication connection with the external detection unit. For this purpose, the at least one communication connection can be based on a wireless local network (WLAN or Wireless Local Area Network), on a wireless personal network (WPAN or Wireless Personal Area Network), such as Bluetooth, a next generation network (Next Generation Mobile Network or NGMN ), such as 4G or 5G.

It is advantageous that the operating device is designed to be particularly robust against external influences, in particular due to the two cloudy covering layers, and is therefore extremely durable and can be designed flexibly in terms of appearance. The requirements placed on the two opaque enveloping layers with regard to their optical properties, for example their transmission, are low, the focus being on protection from adverse influences and / or their characteristic surface properties. Thus, for example, a large number of conventional materials can be used that were previously not intended for the provision of illuminated displays or light signals, such as paper. The characteristic surface properties allow the user to associate the operating device with objects which have comparable haptically perceptible features, such as a paper and / or textile surface.

The invention also includes developments which result in additional advantages.

One embodiment provides that a second output layer with at least one further luminous element for outputting at least one further luminous signal is arranged between the carrier layer and the second cloudy envelope layer. In this case, the second cloudy covering layer at least partially encloses the at least one further luminous element, so that the at least one further luminous element protrudes at least partially into the second covering layer. This is an arrangement as already explained in connection with the first cloudy covering layer and the at least one luminous element. It is advantageous that the operating device can thus output the respective light signal to the outside on both cover layers as a function of the captured user input. Thus, the output of the respective luminous signal can be designed in a more diverse manner and a size of the operating device can be reduced, since both and not only the first envelope layer can output the respective luminous signal.

Another embodiment provides that the first cloudy coating layer and / or the second cloudy coating layer comprises natural polymers, in particular natural fibers, and / or synthetic polymers. This means that the respective or both of the cloudy covering layers made of biopolymers, that is to say polymers produced by living beings, and / or comprise synthetic polymers of industrial origin. The natural polymers are, in particular, natural fibers such as cellulose, which are raw materials for paper production. Synthetic polymers, such as polyethylene or polypropylene, are raw materials for manufacturing plastics.

It is advantageous that both natural and synthetic polymers are inexpensive raw materials and can be easily processed, for example reshaped. Alternatively or in addition, the first cloudy covering layer and / or the second cloudy covering layer is arranged in a reversibly detachable manner. This means that the respective covering layer can be removed and / or exchanged. An exchange may be necessary if a cosmetic and / or functional service life of the respective covering layer is shorter than that of the remaining components of the operating device.

Another embodiment provides that the operating device provides an interactive operating interface by means of the at least one luminous element and the detection device. The operating device provides that an externally visible surface of at least one of the covering layers is provided with at least one static graphic display symbol (e.g. a printed label) and with at least one dynamic graphic display symbol (e.g. a cross or tick as the "done" symbol) is. The user can thus interact with the aid of the operating interface shown, the operating device linking the user input with the light signal following the user input. The user interface visibly arranged on the surface, in particular the at least one static graphic display symbol, can, for example, have been attached after the respective covering layer has been manufactured, in particular painted or printed on, and / or already embedded in the respective covering layer during manufacture. The at least one dynamic graphic display symbol is, however formed by the control device by controlling the respective light elements assigned to the display symbol. This means that the at least dynamic graphic display symbol is only displayed when the associated light signal is generated by the respective light element. The at least one dynamic graphic display symbol and / or the at least one static graphic display symbol can be specified, for example, by graphic data. The at least one static graphic display symbol is always visible regardless of the activation of the respective light elements. If, for example, a menu card is provided by means of the operating device, then the at least one static graphic display symbol specifies, for example, a selectable menu option, while the at least one static graphic display symbol displays a menu option selected using the captured user input. It is advantageous that the user input to be recorded can be controlled by means of the at least one static graphic display symbol, that is to say the respective user input can be proposed to the user so that the user can easily operate the operating device. Furthermore, the user input made is displayed to the user by means of the at least one dynamic graphic display symbol.

Another embodiment of this provides that the respective light elements represent pixels of a pixel-based display of the at least one dynamic graphic display symbol and a pixel density is different for at least two dynamic graphic display symbols. The pixel density is defined here as a number of respective luminous elements per unit area and / or as a relative distance between at least two luminous elements of the respective output layer. This means that the at least one dynamic graphic display symbol comprises a plurality of light-emitting elements, these forming characteristic image points (pixels) of the at least one dynamic graphic display symbol. A respective arrangement of the light elements of the at least one dynamic graphic display symbol is referred to as pixel density and characterizes the respective output. This means that the high-resolution output has a higher pixel density than the low-resolution output. In the case of the high-resolution output, more light-emitting elements are therefore arranged in relation to the surface unit and / or the at least light-emitting elements are arranged with a smaller relative distance than in the case of the low-resolution output. It is advantageous that the pixel density is adapted as a function of the respective dynamic graphic display symbol and the respective characteristic output takes place in a resource-optimized manner.

Another embodiment provides that a first sub-area and a second sub-area of the layer composite, which is different from the first sub-area, are to be displaced relative to a folding axis so that in a folded state the first sub-area and the second sub-area at least partially form a common stop or lie against one another. In the unfolded state, the surfaces of the two partial areas can point in a common direction. The carrier layer has a hinge and / or a flexible region and / or a fold along the fold axis. When the operating device is folded, it can be transferred from a further state different from the folded state to the folded state. The first sub-area and the second sub-area can be arranged by means of a folding movement in such a way that both sub-areas at least partially touch, that is to say at least partially have a common contact surface. Thus, the operating device can, for example, be stored in the folded state in a space-saving manner, in particular in a charging device. If, on the other hand, it is necessary for both the first and the second partial area to be visible, then the operating device can in particular be opened by the user. The operating device can therefore flexibly change its geometric shape. Furthermore, it can be provided that a first user input is recorded when the operating device is in the folded state, and a second user input is recorded from at least one of the two sub-areas when the operating device is in the further state. For example, the gyrometric sensor device detects a relative movement of the operating device so that in the folded state the operating device, in particular the touch-sensitive input layer and / or the respective light elements of the respective output layer, is deactivated in the first sub-area and in the second sub-area and the surface of the operating device visible to the outside is activated. Only when the operating device is unfolded and transferred to the further state is the operating device activated in the first partial area and / or in the second partial area.

Another embodiment provides that the control device is designed to output optical feedback for signaling the successfully captured user input by activating the respective luminous elements at an output area that overlaps a detection area, depending on the captured user input. Additionally or alternatively, the control device is set up to output at least one optical image display at at least one output area different from the detection area. The user input is sent to the Detection area detected, for example when the user touches the detection area. When the respective light elements are activated, the optical feedback is output, for example to indicate that the user input has been recorded by the operating device. For example, the visual feedback is given with a check box specified by an operator interface with a low-resolution tick. The corresponding output area of the optical feedback is to be assigned locally to the detection area. The at least one optical image display, for example in the form of a high-resolution display symbol, is output at the at least one different output area. In this way it can be prevented, for example, that the optical image display is covered by the user, in particular a body part and / or input element such as a pen. Furthermore, the captured user input can be output in a visually appealing manner and, for example, text information can be added decoratively by means of the optical image display.

According to a further embodiment of this, it is provided that the control device is designed to display a connection between the detection area and the at least one output area different from the detection area by further controlling the respective lighting elements by means of a running light. For example, the optical feedback on the captured user input is visually related by means of the output optical image display. The running light includes, for example, several light elements that can be individually controlled in a respective direction, so that the connection from the optical feedback to the optical image display or vice versa moves optically and can in particular be perceived as a so-called ant road. It is advantageous that the seemingly moving connection can easily be perceived by the user.

According to a further embodiment it is provided that the input layer has several spatially separated detection areas. The control device is designed to alternately activate and deactivate individual detection areas independently of one another as a function of the detected user input and to provide selective detection of a further user input by deactivating some of the detection areas. This means that the recorded user input restricts further user input and partially prescribes it. For example, an operating interface of the operating device specifies a menu for beverage selection. In the folded state, the user can make a preselection using the user input, for example whether he would like to select an alcoholic or a non-alcoholic drink. If the user input is used to characterize that the user wants a non-alcoholic beverage, then it is not necessary to continue to selectively dispense alcoholic beverages to the user, i.e. to leave the detection area activated, since the further user input only relates to the non-alcoholic beverage. It is advantageous that further operation is simplified by means of the preselection made using the user input. Furthermore, resource-saving operation of the operating device can be implemented.

According to a further embodiment of this, it is provided that, depending on the preselection, at least one of the deactivated detection areas is to be displayed optically by activating respective light elements to signal the deactivation. This means that one of the deactivated detection areas, in particular at least one check box assigned to it and / or at least one piece of text information assigned to it, is optically highlighted. One of the deactivated detection areas appears simply struck through and / or crossed through and / or has a colored marking and / or at least one deactivation symbol. Alternatively or additionally, one of the deactivated detection areas can be completely outshone.

The method according to the invention for operating such an operating device provides that an operating menu is displayed on a surface of at least one covering layer of the operating device and at least one output element of an output layer is provided by means of a control device as a function of a user input detected by a touch-sensitive input layer and assigned to actuation of the operating menu Output of a light signal emitted in the at least one cladding layer is controlled. The control device is set up to carry out the method according to the invention. The operating menu visibly displayed on the surface includes, for example, several check boxes to be selected. If a selected check box of the operating menu is identified by means of the user input, the light signal is output as a function of the selected check box, the light signal being generated by the at least one activated output element. It is advantageous that the at least one cloudy covering layer protects the operating device from external influences and it is therefore particularly durable. Alternatively or additionally, the at least one cloudy envelope layer can be transparent. As an alternative or in addition, the operating device is functional if the at least one reversibly releasably arranged turbid covering layer is removed, for example replaced. To The invention also includes further developments of the method according to the invention which have features as they have already been described in connection with the further developments of the operating device according to the invention. For this reason, the corresponding developments of the method according to the invention are not described again here.

The invention also includes the combinations of the features of the described embodiments.

• 1 eine erste schematische Schnittdarstellung einer Bedienvorrichtung zum einseitigen Ausgeben eines Leuchtsignals;
• 2 eine zweite schematische Schnittdarstellung der Bedienvorrichtung zum zweiseitigen Ausgeben eines Leuchtsignals;
• 3 eine erste schematische Perspektivansicht der Bedienvorrichtung mit einem Bedienmenü;
• 4 eine zweite schematische Perspektivansicht der Bedienvorrichtung zum Erfassen einer Benutzereingabe;
• 5 eine dritte schematische Perspektivansicht der Bedienvorrichtung beim Ausgeben eines Leuchtsignals;
• 6 eine erste schematische Vorderansicht der Bedienvorrichtung im gefalteten Zustand;
• 7 eine zweite schematische Vorderansicht der Bedienvorrichtung im gefalteten Zustand beim Ausgeben einer optischen Rückmeldung, einer optischen Bildanzeige und eines Laufbands;
• 8 ausschnittsweise eine vierte schematische Perspektivansicht der Bedienvorrichtung; und
• 9 eine schematische Seitenansicht der Bedienvorrichtung im gefalteten Zustand.

Exemplary embodiments of the invention are described below. This shows:

• 1 a first schematic sectional illustration of an operating device for one-sided output of a light signal;
• 2 a second schematic sectional illustration of the operating device for two-sided output of a light signal;
• 3 a first schematic perspective view of the operating device with an operating menu;
• 4th a second schematic perspective view of the operating device for detecting a user input;
• 5 a third schematic perspective view of the operating device when outputting a light signal;
• 6th a first schematic front view of the operating device in the folded state;
• 7th a second schematic front view of the operating device in the folded state when outputting an optical feedback, an optical image display and a treadmill;
• 8th a detail of a fourth schematic perspective view of the operating device; and
• 9 a schematic side view of the operating device in the folded state.

The exemplary embodiments explained below are preferred embodiments of the invention. In the exemplary embodiments, the described components of the embodiments each represent individual features of the invention that are to be considered independently of one another and that also develop the invention independently of one another.

Therefore, the disclosure is intended to include combinations of the features of the embodiments other than those shown. Furthermore, the described embodiments can also be supplemented by further features of the invention already described.

In the figures, the same reference symbols denote functionally identical elements and show an operating device 10 for outputting a light signal as a function of a captured user input.

1 and 2 show them as a layer composite 12 trained operating device 10 in a respective sectional view. The operating device includes 10 a carrier layer 14th , the stiffness of the layer composite 12 pretends, and on their front 16 a touch-sensitive input layer 18th is arranged to detect the user input. At the input layer 18th is a first output layer 20th with at least one switchable light element 22nd arranged. In 2 is in addition to the first output layer 20th a second output layer 24 with at least one further lighting element 26th at a back 28 the carrier layer 14th arranged. The operating device is on the outside 10 at least partially from two cloudy coating layers 30th , 32 limited, which include natural polymers, in particular natural fibers such as cellulose, and / or synthetic polymers and can be arranged reversibly detachable. Alternatively, the cloudy coating layers 30th , 32 with sufficient layer thickness, the rigidity of the layer composite 12 pretend so that the carrier layer 14th partially or completely omitted. A first cloudy layer 30th is at least partially on the first output layer 20th , for example a printed circuit board, arranged reversibly detachable and at least partially encloses the at least one luminous element 22nd so that at least one light element 22nd at least partially in the first cloudy coating layer 30th protrudes. A second cloudy layer 32 is at the back 28 the carrier layer 14th arranged, where in 1 the second cloudy coating layer 32 directly on the carrier layer 14th and in 2 at least partially on the second output layer 20th is arranged. In 1 limits that to the first output layer 24 arranged at least one luminous element 22nd together with the first cloudy coating layer 30th the operating device to the outside 10 so that at least one light element 22nd the cloudy coating 30th penetrates. In 2 . are the respective light elements 22nd , 26th in the respective cloudy envelope layer 30th , 32 completely embedded so that the operating device 10 to the outside of the respective turbid coating layers 30th , 32 is limited and the respective lighting elements 22nd , 26th at least partially in the respective cloudy coating layer 30th , 32 protrudes. The operating device also includes 10 a control device 34 , which is designed depending on the means of the input layer 18th captured user input respective light elements 22nd , 26th , for example micro-LEDs, for output des in the respective cloudy envelope layer 30th , 32 to control the emitted light signal.

In the 3 operating device shown 10 has a first sub-area 38 and one of the first sub-area 38 different second sub-area 40 of the layer composite 12 on, the two sub-areas 38 , 40 around a folding axis 42 relative to relocate, that is, to fold. The carrier layer 14th along the fold axis 42 , as in 3 to 5 shown, a fold on. Will the control device 10 from a folded state 44 deviating other state 46 in the folded state 44 transferred, then form the two sub-areas 38 , 40 at least partially a common stop 48 , that is partly a common contact surface, as in 9 is shown. On one surface 36 the at least one cloudy coating layer 30th , 32 the control device 10 is an operating menu 50 shown. An actuation of the operating menu designed as a menu card 50 is by means of the touch-sensitive input layer 18th detected user input determined, that is assigned.

After a user 85 a preselection, for example a consumption preference, by pressing the in 3 operating menus shown 50 which is almost folded 44 located control device 10 has made the control device 10 by the user 85 in the other state 46 unfolded, as in 4th and 5 . is shown to substantiate the preselection. The operating device 10 provides a user interface 52 on one of the externally visible surfaces 36 at least one of the two cloudy coating layers 30th , 32 ready, each at least one static graphic display symbol 54 , especially one symbolically as T1 to T24 displayed text information, outlines of a check box or outlines of an icon, and at least one dynamic graphic display icon 56 includes. The at least one dynamic graphic display symbol 56 is designed, for example, as a hook or as a high-resolution icon and is controlled by the control device 34 by activating the respective dynamic graphic display symbol 56 associated lighting elements 22nd , 26th educated.

The touch-sensitive input layer 18th comprises several spatially separated detection areas 58 , 60 that are independent of one another by means of the control device 34 can be controlled depending on the captured user input. Individual detection areas are thereby 58 , 60 activated and deactivated alternately, so by deactivating some of the detection areas 60 selective detection of further user input can be provided. For example, by means of the user input when the operating menu is activated 50 records that only non-alcoholic beverages and plant-based foods want to be consumed. The detection areas are dependent on the user input 58 , 60 from the control device 34 controlled in such a way that only those detection areas 58 remain activated according to the preselection to record the further user input and the detection areas that deviate therefrom 60 deactivated. 4th shows in this context activated detection area simply hatched 58 and crosshatched deactivated detection areas 60 to record further user input. Depending on the preselection, at least one of the deactivated detection areas 60 by controlling the respective light elements 22nd , 26th to signal the deactivation visually displayed. In doing so, the at least one deactivated detection area 60 assigned respective check boxes and the respective associated text information T13 , T15 , T16 by controlling the respective light elements 22nd , 26th so optically highlighted that a schematically indicated line 90 the respective check box and the associated text information T13 , T15 , T16 appear crossed out.

6th and 7th set the control device 10 with a structure of the layer composite 12 according to 1 respective light elements 22nd , 26th are pixels of a pixel-based display 62 of the at least one dynamic graphic display symbol 56 . The pixels, so-called characteristic image points, are also visible from the outside when the respective light elements are activated 22nd , 26th by means of the control device 34 is omitted. There is a pixel density, that is, a respective arrangement of the light elements 22nd , 26th , for at least two dynamic graphic display symbols 64 , 66 different and characterizes their output. The pixel density is defined as a number of respective light elements 22nd , 26th per unit area and / or as a relative distance 68 , a so-called pixel pitch, between at least two light elements 22nd , 26th of the respective output layer 20th , 24 . In 1 is the relative distance 68 for a first luminous element 70 and a second luminous element 72 the first output layer 20th shown. In 7th is a first dynamic graphic display symbol 64 as a simple hook and a second dynamic graphic display symbol 66 designed as a decorative icon, the tick being output with low resolution and the icon being output with high resolution. Therefore, the pixel density of the tick is lower than that of the icon. With a high pixel density, the respective light elements are 22nd , 26th as pixels from the outside either directly or through the respective cloudy envelope layer 30th , 32 through for the user 85 visible. Thus is the surface 36 the respective cloudy shell layer 30th , 32 darker in an area of high pixel density than in an area of low pixel density or an area without pixels. A visually uniform surface 36 to create a coloring of the respective surface 36 adapted to the pixel density, for example the surface 36 be gray.

User input is sent to a detection area 74 by means of the touch-sensitive input layer 18th recorded, for example when the user 85 one on the surface 36 the control device 10 specific check box shown. 7th shows how depending on the captured user input by controlling the respective light elements 22nd , 26th by means of the control device 34 on one with the detection area 74 overlapping output area 76 a visual feedback 78 , for example as a tick, is issued to signal the successfully captured user input. Furthermore, there is at least one optical image display 80 , for example as an icon, on at least one of the detection area 74 different output range 82 issued. A connection between the detection area 74 and the at least one different output area 82 is activated by controlling the respective light elements 22nd , 24 by means of a schematically indicated running light 84 displayed.

8th and 9 show a thickening 86 along the fold axis 42 , in which the control device 34 is arranged. Furthermore, the thickening 86 also an accumulator 88 for the electrical supply of the operating device 10 include. In particular, the thickening forms 86 with the control device 10 when folded 44 a common flat top side and a common flat bottom side, so that the respective sub-area 38 assigned layer composite 12 arranged one next to the other with a normal spacing of the thickening 86 have identical or reduced normal spacing.

Furthermore, the operating device 10 a storage device, an acoustic output device such as a loudspeaker, a haptic output device such as a vibration element, an acoustic detection unit such as a microphone, a gyrometric sensor device and a communication device for establishing at least one communication link based on a wireless local area network (WLAN or Wireless Local Area) Network), on a wireless personal network (WPAN or Wireless Personal Area Network) such as Bluetooth, a next generation network (Next Generation Mobile Network or NGMN) such as 4G or 5G.

Modern vehicles, in particular motor vehicles, include operating devices 10 which include, for example, touch displays, that is to say touch-sensitive screens. The respective operating device 10 can either be permanently installed in the vehicle, i.e. integrated into the vehicle, or mobile, i.e. detachable, for example designed as a mobile terminal. Often times the surface becomes 36 the control device 10 by the user 85 Perceived as inferior if the surface 36 dirty due to operation or if the surface 36 by the user 85 haptically perceived as unpleasant.

The surface 36 the control device 10 , which respective light elements designed as micro-LEDs 22nd , 26th comprises, can by means of the respective cloudy coating layer 30th , 32 can be specifically influenced. The respective cloudy shell layer 30th , 32 , which is a carrier medium for the luminous elements 22nd , 26th is, is preferably paper, in particular heavy and thick paper such as handmade watercolor paper, or a paper-like material whose haptic perception corresponds to that of paper, so that the operating device 10 for example associated with a sheet of paper. The actuation of the operating device 10 leaves behind on the respective cloudy coating layer 30th , 32 no prints and therefore the control device 10 by the user 85 perceived as high quality. Furthermore, the cloudy coating layer 30th , 32 Absorb reflections of the light signal and offer a high contrast. Furthermore, the cloudy envelope layers 30th , 32 be designed such that they are attached to the operating device 10 reversibly detachable and can be exchanged if necessary.

Overall, the examples show how the invention can provide a display comprising micro-LEDs on a paper carrier or a paper-like carrier.

QUOTES INCLUDED IN THE DESCRIPTION

This list of the 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.

Patent literature cited

• US 2018/0010299 A1 [0003]
• WO 2005/078566 A1 [0004]
• CN 203639750 U [0005]

Claims (11)

Operating device (10), which is designed as a layer composite (12) which comprises: a carrier layer (14) for specifying a stiffness of the layer composite (12), a proximity and / or touch-sensitive input layer (18) arranged on a front side (16) of the carrier layer (14), a first output layer (20) arranged on the input layer (18) and having at least one switchable luminous element (22) for outputting a luminous signal, a first opaque envelope layer (30) arranged at least partially directly on the first output layer (20), which at least partially encloses the at least one luminous element (22) so that the at least one luminous element (22) protrudes at least partially into the first opaque envelope layer (30) , a second cloudy covering layer (32) arranged on a rear side (28) of the carrier layer (14), and a control device (34) which is designed to control the at least one luminous element (22) as a function of a user input captured by the input layer (18). Control device (10) after Claim 1 , wherein a second output layer (24) with at least one further luminous element (26) for outputting at least one further luminous signal is arranged between the carrier layer (14) and the second cloudy covering layer (32), the second cloudy covering layer (32) at least partially the encloses at least one further luminous element (26) so that the at least one further luminous element (26) protrudes at least partially into the second cloudy envelope layer (32). Control device (10) according to one of the preceding claims, wherein the first cloudy covering layer (30) and / or the second cloudy covering layer (32) comprises natural polymers, in particular natural fibers, and / or synthetic polymers. Operating device (10) according to one of the preceding claims, wherein the operating device (10) provides an operating interface (52) which provides that an externally visible surface (36) of at least one of the covering layers (30, 32) each with at least one static graphic Display symbol (54) and with at least one dynamic graphic display symbol (56) is provided, the at least one dynamic graphic display symbol (56) being provided by the control device (34) by means of the activation of respective light elements (22, 26) assigned to the display symbol (56) ) is formed. Control device (10) after Claim 4 , wherein the respective lighting elements (22, 26) represent pixels of a pixel-based display (62) of the at least one dynamic graphic display symbol (56) and a pixel density for at least two dynamic graphic display symbols (64, 66) is different, the pixel density being defined as a number of respective luminous elements (22, 26) per unit area and / or as a relative distance between at least two luminous elements (70, 72) of the respective output layer (20, 24). Operating device (10) according to one of the preceding claims, wherein a first partial area (38) and a second partial area (40) of the layer composite (12) different from the first partial area (38) are to be displaced relative to a folding axis (42) so that in one folded state (44), the first partial area (38) and the second partial area (38) at least partially form a common stop (48), the carrier layer (14) along the folding axis (42), the carrier layer (14) being a hinge and / or has a flexible area and / or a fold. Operating device (10) according to one of the preceding claims, wherein the control device (34) is designed, depending on the captured user input, by controlling the respective lighting elements (22, 26) at an output area (76) that overlaps a detection area (74) an optical feedback (78) for signaling the successfully recorded user input and / or at least one optical image display (80) is to be output at at least one output area (82) different from the detection area (74). Control device (10) after Claim 7 , wherein the control device (34) is designed to display a connection between the detection area and the at least one output area different from the detection area by further controlling the respective light elements (70, 72) by means of a running light. Operating device (10) according to one of the preceding claims, wherein the input layer (18) has a plurality of spatially separated detection areas (58, 60), wherein the control device (34) is designed to generate individual detection areas (58, 60) independently of one another as a function of to alternately activate and deactivate the captured user input and to provide a selective capture of a further user input by deactivating some of the capture areas (60). Control device (10) after Claim 9 whereby, depending on the preselection, at least one of the deactivated detection areas (60) is to be displayed optically by activating the respective light-emitting elements (22, 26) to signal the deactivation. Method for operating an operating device (10) according to one of the preceding claims, wherein an operating menu (50) is displayed on a surface (36) of at least one cloudy covering layer (30, 32) of the operating device (10) and is depicted by means of a control device (34) of at least one output element (22, 26) of an output layer (20, 24) for outputting one in the at least one cloudy envelope layer (30, 32) by means of a user input detected by a touch-sensitive input layer (18) and assigned to actuation of the operating menu (50) emitted light signal is controlled.

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