DE202013103655U1 - Motor vehicle light - Google Patents

Motor vehicle light

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Publication number
DE202013103655U1
DE202013103655U1 DE202013103655U DE202013103655U DE202013103655U1 DE 202013103655 U1 DE202013103655 U1 DE 202013103655U1 DE 202013103655 U DE202013103655 U DE 202013103655U DE 202013103655 U DE202013103655 U DE 202013103655U DE 202013103655 U1 DE202013103655 U1 DE 202013103655U1
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Germany
Prior art keywords
light
motor vehicle
functions
function
bl
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Active
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DE202013103655U
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German (de)
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Odelo GmbH
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Odelo GmbH
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Publication date
Application filed by Odelo GmbH filed Critical Odelo GmbH
Priority to DE202013103655U priority Critical patent/DE202013103655U1/en
Publication of DE202013103655U1 publication Critical patent/DE202013103655U1/en
Application status is Active legal-status Critical
Anticipated expiration legal-status Critical

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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B60VEHICLES IN GENERAL
    • B60QARRANGEMENT OF SIGNALLING OR LIGHTING DEVICES, THE MOUNTING OR SUPPORTING THEREOF OR CIRCUITS THEREFOR, FOR VEHICLES IN GENERAL
    • B60Q1/00Arrangements or adaptations of optical signalling or lighting devices
    • B60Q1/26Arrangements or adaptations of optical signalling or lighting devices the devices being primarily intended to indicate the vehicle, or parts thereof, or to give signals, to other traffic
    • B60Q1/2607Arrangements or adaptations of optical signalling or lighting devices the devices being primarily intended to indicate the vehicle, or parts thereof, or to give signals, to other traffic comprising at least two indicating lamps
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21LIGHTING
    • F21SNON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S43/00Signalling devices specially adapted for vehicle exteriors, e.g. brake lamps, direction indicator lights or reversing lights
    • F21S43/10Signalling devices specially adapted for vehicle exteriors, e.g. brake lamps, direction indicator lights or reversing lights characterised by the light source
    • F21S43/13Signalling devices specially adapted for vehicle exteriors, e.g. brake lamps, direction indicator lights or reversing lights characterised by the light source characterised by the type of light source
    • F21S43/14Light emitting diodes [LED]
    • F21S43/145Surface emitters, e.g. organic light emitting diodes [OLED]
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B60VEHICLES IN GENERAL
    • B60QARRANGEMENT OF SIGNALLING OR LIGHTING DEVICES, THE MOUNTING OR SUPPORTING THEREOF OR CIRCUITS THEREFOR, FOR VEHICLES IN GENERAL
    • B60Q2400/00Special features or arrangements of exterior signal lamps for vehicles
    • B60Q2400/20Multi-color single source or LED matrix, e.g. yellow blinker and red brake lamp generated by single lamp

Abstract

Motor vehicle light (01), which is designed as a tail light, with at least two light functions (RL, BL, WL, SL, NL) of different light color and one of a housing (02) and a lens (03) enclosed lamp interior (04) comprising at least a device for the optical signaling of variable information comprising: at least one light which is at least partially visible from outside through the lens (03) corresponding to a currently required light function (RL, BL, WL, SL, NL) or light corresponding to a combination of two or more several currently required light functions (RL, BL, WL, SL, NL) of the motor vehicle light (01) radiating display surface (05) consisting of several pixels, each light at least in the light colors of the motor vehicle light (01) to be fulfilled light functions (RL, BL, WL, SL, NL), each pixel comprising a plurality of sub-pixels each of which is sub-pixels pixel is capable of radiating light of a base color so that the subpixels of a pixel can radiate light together to fulfill the different light colors required by the different light functions (RL, BL, WL, SL, NL) of the motor vehicle light (01), and - at least Control means (06) for controlling the light emission of the subpixels of each pixel, for emitting light of each light color of the light functions (RL, BL, WL, SL, NL) to be filled by the motor vehicle light (01) through each pixel and each pixel through the control means controlled in accordance with the current need no light or light of a particular color of light radiates, wherein the control is such that when currently a light function is required, all pixels of the display surface (05) are controlled so that they light in the light color of this one momentarily required light function radiate, and if currently two or more e light functions are required, the pixels of a first batch (21) of the display surface (05) are driven so that they emit light in the light color of a first momentarily required light function, as well as the pixels at least a second portion (21) of the display surface (05) be driven so that they emit light in the light color of at least one second currently required light function.

Description

  • The invention relates to a motor vehicle lamp according to the preamble of claim 1.
  • A motor vehicle lamp essentially comprises a luminaire interior enclosed by a luminaire housing and a lens, and at least one light source accommodating at least one light source housed therein for at least one light function of the motor vehicle light.
  • Each motor vehicle light fulfills one or more tasks or functions depending on the design. To fulfill each task or function, a light function of the motor vehicle light is provided. Light functions are, for example, in a configuration as a headlamp a function illuminating the road surface, or in a configuration as a signal light, a signal function, such as a Wiederblinklichtfunktion to the direction indicator or a brake light function to indicate a braking action, or. a limiting light function, such as a taillight function, to ensure visibility of the vehicle during the day and / or night, such as in a taillight or daytime running light configuration. Examples of motor vehicle lights are on the vehicle's bow, on the vehicle flanks and / or on the side mirrors and rear lights arranged flashing lights, for example, ambient lighting, marker lights, brake lights, fog lamps, reversing lights, and typically high set third brake lights, so-called Central, High-Mounted Braking lights, daytime running lights, headlamps and fog lights used as turning or cornering lights, as well as combinations thereof.
  • Each light function must fulfill an example prescribed by law light distribution. The light distribution sets at least to be observed, colloquially known as brightness luminous flux in at least to be observed solid angle ranges.
  • For the individual lighting functions, there are sometimes different brightnesses or visibility ranges and, in some cases, different light colors.
  • At least one light source of the luminous means of a motor vehicle light can be assigned one or more optical elements contributing to the shaping of a light distribution for directing the light.
  • The lens is formed by a transparent cover which is usually made of a plastic material today, which closes off the interior of the lamp and protects the components housed therein, such as one or more lamps, reflectors and alternatively or additionally provided optical elements against the effects of weathering.
  • The luminaire housing or the interior of the luminaire can be subdivided into a plurality of chambers, each with its own light sources and / or illuminants and / or optical elements and, if appropriate, light disks, of which several chambers can be identical and / or each chamber can fulfill a different lighting function.
  • The optical elements mentioned can be at least one reflector and / or at least one lens and / or one or more optical disks or the like arranged in the beam path between at least one light source of the luminous means and the light disk.
  • For example, at least one reflector arranged behind at least one light source of at least one luminous means can be accommodated in the luminaire interior. The reflector may be formed at least in part by a separate component and / or by at least one part of the luminaire housing itself, for example by means of an at least partially reflective coating.
  • The lens itself may alternatively or additionally be formed as an optical element, for example by being preferably provided on the inside with an optical structure contributing to the production of one or more light distributions mentioned above. This may possibly be dispensed with an optical disk.
  • Examples of motor vehicle lights are the Fahrzeugbug, on the vehicle flanks and / or on the side mirrors and arranged at the rear of vehicle rear lights, exit lights, for example, ambient lighting, marker lights, brake lights, fog lamps, reversing lights, and typically high set third brake lights, so-called Central, High-Mounted Braking lights, daytime running lights, headlamps and fog lights used as turning or cornering lights, as well as combinations thereof.
  • Such a combination is realized, for example, regularly in the known taillights. These include, for example, repeating flashing lights, marker lights, brake lights, fog lights and reversing lights are used to name just one of many realized in tail lights combinations. Neither does this enumeration claim to be complete, nor This means that in a tail light all the above lights must be combined. Thus, for example, only two or three of the mentioned or else other lights in a common luminaire housing a tail light be combined.
  • By US 7,642,908 B2 is a running as a tail lamp motor vehicle lamp with a brake light function and with a rear fog light function known. The brake light function is associated with a brake light source with a brake light source, which emits brake light when needed. The rear fog light function is associated with a rear fog light part with a rear fog light source, which emits the brake light or rear fog light when needed. Between the brake light section and the rear fog light section a distance piece is provided with a distance light source. The distance light part emits brake light when the rear fog light part emits brake light, so that when the rear fog light part does not fulfill the rear fog light function, all three parts fulfill the brake light function. If the rear fog light section meets the rear fog light function, the distance light source remains dark and only the brake light part is able to fulfill the brake light function.
  • It is also possible that several light functions of the same light color and different brightness are fulfilled by one or more light sources together. An example of this is a combined back-brake light function, which can be realized, for example, by a differently strong energization of one or more light sources.
  • By DE 197 53 096 A1 is a motor vehicle lamp with at least two light functions and a lamp housing enclosed by a housing and a light inside known. The motor vehicle light has at least one luminous or functional surface with light-emitting diodes of uniform color as light sources for fulfilling a light function. The motor vehicle light has at least one surface, which has additional light emitting diodes of the same color to fulfill an additional light function. In addition to this luminous surface further luminous surfaces are provided, in which blue, green and red LEDs can be arranged to perceive by additive color mixing a flashing light function or a reversing light function. Each light function is fulfilled only by the light emitting diodes provided for the respective light function, wherein each light function is exactly the area available, which is occupied by the light-emitting diodes provided for this purpose.
  • By DE 199 45 775 A1 a motor vehicle lamp is known which has a plurality of illuminated surfaces. Some of these luminous surfaces can perceive several different light functions. 2 B This document shows an example in which several light functions (tail, brake and rear fog light function) share the entire luminous surfaces in proportion. 2a shows an example in which the luminous surfaces are assigned to either a taillight or a brake light function. In the case of the tail light function, the illuminated surfaces are energized and if a brake light function is required, the same light sources are energized correspondingly higher. The tail light function is thus assigned during the simultaneous use of the brake light function no batch of lighting areas. The taillight function is thus undermined during the simultaneous use of the brake light function. A viewer thus perceives only the brighter brake light function.
  • These motor vehicle lights designed as tail lights have in common that at least each light color is associated with at least one specific, predetermined part of the lens and that the direction of emission of each light source is directed through the specific, predetermined, also known as light passage surface of the light disc through one or more light functions.
  • As a consequence, in such a motor vehicle light having a plurality of light functions, the at least one light function available light passage surface is limited to a part of the lens. This has in comparison to a use of the full surface of the lens for the at least one light function, which is limited to the light emission through the lens through light transmission surface is limited to only a portion of the lens, the disadvantage of a restriction of visibility and thus a reduction of Signal effect associated with a restriction of traffic safety result.
  • This disadvantage is even more pronounced in a motor vehicle lamp with at least two different light functions with a total of at least two different light colors. There, light transmission surfaces are already allocated through the lens to the various light colors, so that each light function is only a part of the surface of the lens available. Here, the light functions of different light colors regardless of their operating state or regardless of their operation or non-operation always divide the surface of the lens for the light exit, so that the light function available light passage surface is always limited to a portion of the lens independent of the light color ,
  • By EP 2 503 222 A1 is a motor vehicle lamp with at least two light functions and a lamp housing enclosed by a housing and a light inside known. The motor vehicle lamp designed as a tail light accommodates at least one projection surface which is at least partially visible from the outside through the lens and at least one means for variably projecting the currently required one or more light functions of the motor vehicle light at least on the complete part of the projection surface visible from outside through the lens , In this motor vehicle light, at least the entire part of the projection surface of the variable projection that is visible through the lens is at first available for use individually and individually for each individual light function currently required. By viewing at least the projection of the light from the outside of the luminaire inside the light through the lens, which is completely visible from outside the luminaire interior, this single and individually currently required light function provides the entire lens as a light passage surface independently of its light color. If another light function is currently needed, the resulting variable projections of all different combinations of light functions currently required share usage. If several light functions are currently required, their variable projections share the projection surface area-wise. As a result, the entire lens is always used as a light passage surface for the one or more currently required light functions.
  • A limitation of this motor vehicle light is its high design complexity and their relatively large space requirement.
  • The invention is based on the object to develop a motor vehicle light, which has a particularly high road safety and is also simple in construction, and manages with a small space requirement.
  • The object is solved with the features of the independent claim.
  • The invention accordingly relates to a motor vehicle light having at least two light functions and a lamp housing enclosed by a housing and a lens. At least two of the light functions of the motor vehicle light have different light colors.
  • The motor vehicle lamp designed as a tail light accommodates at least one device for the optical signaling of variable information.
  • The information is at least the light functions to be fulfilled by the motor vehicle light. This information is so far variable that at different times, according to different operating conditions of a motor vehicle equipped with such a motor vehicle, different light functions both individually, as well as in any combination with each other as information for other road users are optically signal or must be able to signal ,
  • The device for the optical signaling of variable information includes at least one externally visible through the lens at least partially visible, for emitting light according to a currently required light function or of light according to a combination of two or more currently required light functions of the motor vehicle light suitable display area.
  • By a radiation of light corresponding to a currently required light function or light according to a combination of two or more currently required light functions of the motor vehicle light, each light function individually, as well as any combination of two or more light functions at least on the complete, from the outside through the lens visible part of the display surface are displayed variable, so that always the entire lens is used as a light passage area for the one or more currently required light functions.
  • The representation of a light function on the display surface is neither bound to a specific part of the display surface, nor to a specific geometry. Is currently a light function, regardless of their nature or color of light required, it is displayed on the entire display area or at least on the entire, visible from outside the motor vehicle light through the lens through visible part of the display surface by emitting light of the corresponding light color. If there is another light function or if several additional lighting functions are temporarily added, because they are also needed at the moment, then the two or more currently required lighting functions share the display surface area-wise.
  • For this type of variable representation of the light functions on the display surface, the term variable representation is used below.
  • At least on the complete, visible from the outside through the lens through visible part of the display surface thus the currently required one or more light functions of the motor vehicle light are shown, wherein the display surface light according to the one or more currently required, from the built-in in a motor vehicle state of the vehicle light currently radiates to be fulfilled light functions. Thus, in the case of this motor vehicle light, at least the entire part of the display area visible through the light disc of the variable display of each individually and individually currently required light function is available for use. By viewing the at least the part of the display area which is completely visible from outside the luminaire interior through the lens, the single and individually currently required light function provides the entire lens as a light passage area independently of its light color. If another light function is currently needed, the resulting variable representations of all different combinations of currently required light functions share usage. If several light functions are currently required, their variable representations share the display surface area-wise. As a result, the entire lens is always used as a light passage surface for the one or more currently required, in the form of variable representations displayed on the display surface, light functions. The representation of the currently required one or more light functions is variable in so far as that on the one hand each light function, if it is currently required as a single light function, visible on the entire display area or at least on the outside of the lamp interior through the lens Part of the display surface is displayed, and on the other hand, if any combination of light functions is currently required, this combination is displayed on the entire display surface or at least on the part of the display surface visible from outside the lamp interior through the lens.
  • In addition, the variable representation allows a first light function in combination with a second light function to be displayed on a first section of the display surface or on the part of the display surface visible from outside the luminaire interior through the lens, whereas the first light function is shown in alternative or additional combination with a third and / or fourth and / or further light function can be represented on a part of the display surface that is different from the first batch or part of the display surface visible from outside the luminaire interior through the lens.
  • As a result, the variable representations of arbitrary combinations of light functions currently required, for example, always be presented so that the individual light functions and / or a particularly important light function, because the traffic safety currently most useful, so represented that they best, for example, by their arrangement on the display surface are recognizable for other road users.
  • For this purpose, the display surface consists of several pixels, for example arranged in the form of a matrix or a grid, or comprises those which are capable of emitting light in each case at least in the light colors of the light functions to be fulfilled by the motor vehicle light. Each pixel consists of several subpixels. Each subpixel is able to emit exactly one basic color. The subpixels of a pixel are collectively able to emit light in a number of different primary colors which are required for the pixel to emit the different colors of light needed to fulfill the different light functions of the automotive light.
  • For example, if a motor vehicle light is exclusively designed to fulfill light functions with yellow and red light color, then subpixels are sufficient per pixel, which emit yellow and red light as primary colors. If, for example, a reversing light function of white light color is used instead of or in addition to a light function with yellow or red light color, alternatively or additionally additional subpixels may be provided which emit white light as primary color, or the subpixels of one pixel could light completely different To be able to radiate primary colors to be able to mix with which primary colors the required light colors or, if desired, light colors.
  • Depending on the representation of the to be fulfilled by the motor vehicle light functions of different light colors required basic colors thus has each pixel two, three or more subpixels of different primary colors, in principle, each pixel may have more than one subpixel same color.
  • For the variable representation of the currently required one or more light functions of the motor vehicle light at least on the complete, visible from the outside through the lens through part of the display surface comprises A device for optical signaling of variable information, moreover, at least one control means for controlling the light emission of the subpixels of each pixel, so that each pixel is able to radiate each light color of the light functions to be fulfilled by the motor vehicle light and controlled by the control means according to the current need no light or Light of a certain light color radiates.
  • The control by the control means takes place in such a way that, according to the one or more lighting functions to be currently fulfilled by the motor vehicle light, their variable representations are displayed on the display surface. If a light function is currently required, then the control system controls all pixels of the display surface in such a way that they emit light in the light color of this currently required light function. If two or more light functions are currently required, the control provides for the pixels of a first batch of the display area to be controlled in such a way that they emit light in the light color of a first light function currently required, and the pixels of a second and possibly one or more further lots of the Display surface to be controlled so that they emit light in the light color in each case a second and optionally one or more further currently required light function. The games are preferably formed contiguous.
  • The display area is preferably formed by an OLED screen or an OLED color display and / or comprises an OLED screen or an OLED color display and / or is comprised by an OLED screen or an OLED color display.
  • Each pixel of the OLED screen or an OLED color display in this case consists of two or more, each formed by an organic light emitting diode subpixels (OLED subpixels), of which at least two subpixels light different basic colors are able to radiate.
  • An Organic Light Emitting Diode (OLED) is a luminescent thin-film device made from organic semiconducting materials that differs from inorganic light-emitting diodes (LEDs) in that it does not require single-crystal materials. Compared to inorganic LEDs, organic light-emitting diodes can therefore be produced more cost-effectively in thin-film technology.
  • An advantage of OLED screens over conventional liquid crystal displays (LCDs) is the very high contrast, since they do not require backlighting. Black pixels emit no light. While LCDs only act as colored filters and still show some light in the dark state, OLEDs emit colored light only when activated, which also promises very good color reproduction. This is much more efficient, which requires less energy for OLEDs, especially when displaying dark images. For this reason, OLED screens are less warm than corresponding devices with LCDs. The low energy requirement reduces the consumption of motor vehicles. Due to the unnecessary backlight, it is possible to make OLED screens very thin. The response time of OLED screens is on the order of microseconds, whereas LCDs have a response time of the order of milliseconds. In addition, OLEDs can not only be produced under expensive vacuum and clean room conditions. This means a considerable cost savings compared to inorganic LEDs. A further advantage is based on the alternative of being able to mass-produce OLEDs in a cost-effective manner over large areas, which is not the case with conventional LEDs and is rarely the case with electronic components and systems. The cost advantage results from the fact that the electrically conductive coloring layers can be applied in a modified ink jet printing process or more recently also in offset printing and can also be subsequently coated without vacuum vapor deposition.
  • Particularly preferably, the pixels have RGB subpixels (red-green-blue subpixels) or RGBY subpixels (red-green-blue-yellow subpixels). For RGB subpixels, the subpixels of a pixel emit red, green, and blue light, with each subpixel emitting light in one of these primary colors. In RGBY subpixels, the subpixels of a pixel emit red, green, blue, and yellow (yellow) light, with each subpixel emitting light in one of these primary colors.
  • The RGB subpixels or RGBY subpixels (red-green-blue-yellow subpixels) are electronically controlled by means of the control means for controlling the local color mixing.
  • Alternatively, other color subpixels in chromaticity and number, which are provided to represent the desired color space required to represent the required for the light functions of the motor vehicle light colors of light.
  • The subpixels are electronically controlled by the control means with respect to their brightness in order to generate the locally desired light color from the mixture of the color components of the basic colors emitted by the sub-pixels for the light function, such as brake light function, repeat flash function, tail light function, reversing light function. The parts assigned to the respective light colors then form the geometric shape of the respective light function.
  • Particularly preferably, the subpixels are OLED subpixels.
  • Instead of OLED subpixels, alternatively sub-structured LED subpixels or a plurality of color lasers can be used to generate the desired local color location.
  • The display surface may include or be encompassed by the lens. The display surface can be arranged directly on or behind the lens. Alternatively, the display surface can be arranged in the interior of the lamp spaced from the lens.
  • Advantages over the prior art include, among other things, that the use of a preferably designed as a screen with OLED subpixels display surface space requirements compared to a projection on a projection surface can be significantly reduced. In addition, due to the cost-effective manufacturability of OLEDs, the production costs can be reduced. Due to the variable representation of the currently required lighting functions on the entire display surface, wherein when a light function is currently required, regardless of their light color, the entire display surface is available, and if one or more other lighting functions are currently needed, they share the display area proportionally ,
  • In the motor vehicle lamp according to the invention, the device for optical signaling of variable information compared to through EP 2 503 222 A1 known motor vehicle lamp both the projection surface on which the variable projection of different currently required lighting functions of the motor vehicle light takes place, as well as the variable projection of different currently required lighting functions of the motor vehicle light generating projector.
  • In the motor vehicle luminaire according to the invention, at least the entire part of the display surface visible through the lens is initially available for use in the variable representation of each light function which is currently required individually and individually. By viewing the at least the part of the display area which is completely visible from outside the luminaire interior through the lens, the display is accessible from outside the luminaire interior through the lens. This alone and individually currently required light function makes the entire lens available as a light passage surface.
  • If another light function is currently required, the variable representations of the light functions currently required share the usage.
  • As a result, the entire lens is always used as a light passage surface for the one or more currently required light functions.
  • If several light functions are currently required, these share according to the invention, the display surface area.
  • By means of variable representations of the currently required one or more light functions at least on the complete part of the display surface visible from outside the luminaire interior through the lens, each currently required light function has the greatest possible passage of light through the lens. If, for example, only one light function is currently required, this light function has the complete surface of the light disc as the light passage area, regardless of its light color. If two or more light functions are currently required, these or their variable representations can share the use of the display surface area-wise.
  • The proportional area ratio of the use of the display area by the variable representations of the individual light functions of several currently required light functions can be dependent on, for example, a weighted ratio of the importance of the signal functions of the light functions involved and / or the prevailing ambient conditions, such as weather and / or visibility and / or brightness. Other parameters for subdivision are also conceivable alternatively or additionally.
  • If, for example, a brake light function and a flashing light function are currently required during daytime travel, the brake light function and the flashing light function can each be provided with half of the display area or at least the part of the display area visible from outside the interior of the lamp through the lens for area-share utilization. Alternatively or additionally conceivable that brake light function and flashing light function to share the display surface in time. If, for example, the flashing light function flashes, then its variable representation can be made available for use at least in its entirety, visible from outside the luminaire interior through the lens, wherein at least the complete from outside of the luminaire interior through the lens between the flashing intervals visible part of the display area of the variable representation of the brake light function can be made available for use. It is also possible that brake and flashing light function only part of the display area temporally share. Thus, with a currently required brake light function whose variable representation basically, for example, half of the display area or from outside of the lamp interior through the lens visible through part of the display surface area proportionally available for use available, whereas the brake and flashing light function, the remaining half in time Can share bills. If additional lighting functions are added, for example due to reversing a reversing light function of white light color, then their variable representation can also be made available for use in proportion to the area of part of the display area or part of the part of the display area visible from outside the luminaire interior through the lens.
  • If, for example, a rear light and / or even a rear fog light function is required in the dark and / or poor visibility, then these currently required light functions can always be largely independent of other currently required light functions, for example, a large part of the display area or the visible from outside the lamp interior through the lens Part of the display area for area-share use made available. If a further currently required light function is added, its variable representation is made available, for example, only a smaller part of the display area or of the part of the display area visible from outside the luminaire interior through the lens for area-share use, so that the variable representations of the light functions are included momentarily greater importance a larger proportion of the lens is available as a light passage area. After some time better visibility again, for example, the variable representation of the fog function provided Asked share, for example, be continuously reduced with increasing improvement in visibility, up to a shutdown of the rear fog function equal coming disappearance of the fog function function provided in proportion to the available Part of the display surface or from outside of the lamp interior through the lens visible through part of the display surface.
  • It can be seen that the invention is in any case realized by at least the complete, visible from outside of the lamp interior through the lens visible through part of the display surface of each light function by a variable representation of one or more lighting functions of a taillight on a housed by the motor vehicle display surface Can be made available. By viewing the at least the part of the display surface visible from outside the luminaire interior through the lens, the display of one or more variable representations of the currently required one or more light functions from outside the luminaire interior through the lens is thus the largest possible proportion of the currently required light function Lens as a light passage surface available.
  • It is important to emphasize that the motor vehicle light in addition to the display surface via at least one conventional by means of, for example, one or more accommodated for example in a separate reflector chamber light source and / or a light guide realized light function may have. This at least one light function may, for example, be such a light function whose light values and / or their legal requirements can only be met with great effort by means of a variable representation on the display surface.
  • Alternatively or additionally, one or more light functions can be accommodated independently of the motor vehicle light. By way of example, a rear fog lamp serving to fulfill a rear fog light function and / or a reversing lamp serving to fulfill a reversing light function can be spatially localized together in one module of the motor vehicle light, while the remaining lighting functions are concentrated in another area of the motor vehicle lamp. One reason for this may be, for example, that the rear fog light function must comply with a minimum distance to the brake light function due to legal requirements. By this separation is then given a greater freedom of design.
  • The invention will be explained in more detail with reference to embodiments shown in the drawings. Therein, like reference numerals designate the same or equivalent Elements. For clarity, only reference numerals in the individual drawings are shown, which are required for the description of the respective drawing. The proportions of the individual elements to one another do not always correspond to the actual size ratios, since some shapes are simplified and other shapes are shown enlarged in relation to other elements for better illustration. In a schematic representation:
  • 1 a motor vehicle lamp with a variable translucent projection of the currently required lighting functions on a housed in the interior of the motor vehicle lamp projection screen in a longitudinal section.
  • 2 Representations of outside of the lamp interior through the lens through visible variable representations of various currently required light functions of a motor vehicle light, the variable representations share the display surface area.
  • One in the 1 shown in full or in part and designed as a taillight motor vehicle light 01 has one of a housing 02 and a lens 03 enclosed luminaire interior 04 on. The motor vehicle light 01 has at least two light functions RL, BL, WL, SL, NL. This may be a tail light function RL and / or a brake light function BL and / or a repeated flash light function WL and / or a reversing light function SL and / or a rear fog light function NL. Alternatively or additionally, further light functions are conceivable. At least two of the light functions RL, BL, WL, SL, NL of the motor vehicle light 01 are different light color.
  • The motor vehicle light 01 comprises at least one device for the optical signaling of variable information.
  • The information is at least that of the motor vehicle light 01 to be fulfilled light functions RL, BL, WL, SL, NL. This information is so far variable that at different times, according to different operating conditions, one with such a motor vehicle light 01 equipped motor vehicle, different light functions RL, BL, WL, SL, NL both individually, as well as in any combination with each other as information for other road users are optically signaled or must be able to be signaled.
  • The variable information optical signaling device comprises at least one of a viewer B from outside through the lens 03 at least partially visible, light corresponding to a currently required light function RL, BL, WL, SL, NL or light corresponding to a combination of two or more currently required light functions RL, BL, WL, SL, NL of the motor vehicle light 01 radiating display surface 05 ,
  • The presentation area 05 consists of several, for example, a matrix-like or grid-like arranged pixels, each light at least in the light colors of the motor vehicle light 01 to be fulfilled light functions RL, BL, WL, SL, NL are capable of. Each pixel includes a plurality of subpixels, each of which subpixels is capable of emitting light of a base color, such that the subpixels of a pixel share light for meeting the different of the automotive vehicle light 01 to be fulfilled light functions RL, BL, WL, SL, NL need to be able to radiate different light colors.
  • Depending on the representation of the motor vehicle light 01 To be fulfilled light functions RL, BL, WL, SL, NL different colors of primary colors required each pixel has two, three or more subpixels of different primary colors, in principle, each pixel may have more than one subpixel of the same base color.
  • Is a motor vehicle light 01 For example, designed exclusively to fulfill light functions with yellow and red light color, so suffice per pixel subpixels, which emit as primary colors yellow and red light. Comes with another motor vehicle light 01 instead of or in addition to a light function with yellow or red light color, for example, a reversing light function RL white light color, alternatively or additionally optional additional subpixels may be provided which emit white light as a base color, or the subpixels of a pixel could radiate light entirely different primary colors in the Be able to decide with which basic colors the required light colors or additively to any light colors.
  • The device for the optical signaling of variable information also comprises at least one control means 06 for controlling the light emission of the subpixels of each pixel so that each pixel, controlled by the control means, does not emit light or light of a particular color of light according to the current need, according to the possibility of emitting light of each color of light from the motor vehicle lamp 01 to be fulfilled light functions RL, BL, WL, SL, NL through each pixel.
  • The control by the control means 06 takes place in such a way that according to the motor vehicle light 01 currently to be fulfilled one or more light functions RL, BL, WL, SL, NL whose variable representations on the display surface 05 is shown, and if currently a light function RL, BL, WL, SL, NL is required, all pixels of the display area 05 be driven so that they emit light in the light color of this one momentarily required light function RL, BL, WL, SL, NL, and if two or more light functions RL, BL, WL, SL, NL are currently required, the pixels of a first batch 21 the presentation area 05 be driven so that they emit light in the light color of a first currently required light function RL, BL, WL, SL, NL, as well as the pixels of at least one second batch 21 the presentation area 05 be driven so that they emit light in the light color of at least one second currently required light function RL, BL, WL, SL, NL.
  • This always turns the entire lens 03 used as a light passage area for each one or more currently required light functions RL, BL, WL, SL, NL.
  • At first, at least the whole is through the lens 03 visible part of the display area 05 the variable representation of each alone and individually currently required light function RL, BL, WL, SL, NL available for use.
  • By viewing the at least the outside of the lamp interior 04 through the lens 03 visible part of the display area 05 fully engaging variable representation from outside the luminaire interior 04 through the lens 03 through the variable representation of this alone and individually currently required light function RL, BL, WL, SL, NL is the entire lens 03 as a light passage area available.
  • If a further light function RL, BL, WL, SL, NL is currently required, the resulting variable representations of all different combinations of currently required light functions RL, BL, WL, SL, NL share the usage, so that if a plurality of light functions RL, BL, WL, SL, NL, their variable representations are the display area 05 Share in proportion. Again, the entire lens is always 03 used as a light passage area for the one or more currently required light functions RL, BL, WL, SL, NL.
  • By the emission of light corresponding to a currently required light function or of light corresponding to a combination of two or more currently required light functions of the motor vehicle light 01 By means of the display surface with its individually controllable, variable in their light color and brightness pixels each light function individually, as well as any combination of two or more light functions at least on the complete, visible from the outside through the lens through part of the display area 05 be displayed variably, so that always the entire lens 03 is used as a light passage area for the one or more currently required light functions.
  • The representation of a light function on the display surface 05 is neither a specific lot 21 the presentation area 05 , still bound to a specific geometry. If a light function is currently required, regardless of its type or light color, it will be displayed on the entire display surface 05 or at least on the whole, from outside the motor vehicle light 01 through the lens 03 visible part of the display area 05 represented by emission of light of the corresponding light color. If there is another light function or if several additional lighting functions are added temporarily because they are also needed at the moment, then the two or more lighting functions currently required share the display area 05 area-rata basis.
  • The games 21 are here preferably formed contiguous
  • At least on the complete, for the viewer B from the outside through the lens 03 visible part of the display area 05 Thus, the currently required one or more light functions of the motor vehicle light 01 shown. The presentation area 05 In this case, light radiates according to the one or more currently required, from the motor vehicle light built-in state of a motor vehicle 01 currently performing lighting functions. This is in this motor vehicle light 01 First, at least the entire through the lens 03 visible part of the display area 05 the variable representation of each alone and individually currently required light function available for use. By viewing the at least the outside of the lamp interior 04 through the lens 03 visible part of the display area 05 completely engaging presentation is this alone and individually currently required light function regardless of their light color the entire lens 03 as a light passage area available. If another Light function is currently required, the resulting variable representations of all different combinations of currently required light functions share the use of the display area 05 area-rata basis. This always turns the entire lens 03 as a light passage area for the one or more currently required, in the form of variable representations on the display surface 05 used illustrated light functions. The representation of the currently required one or more light functions is variable in so far as that on the one hand, each light function, if it is currently required as the only light function, on the entire display area 05 or at least on the part of the display surface visible from outside the luminaire interior through the lens 05 and, on the other hand, if any combination of light functions is currently needed, that combination across the entire display area 05 or at least on the outside of the lamp interior 04 through the lens 03 visible part of the display area 05 is pictured.
  • The variable display also allows for a first light function in combination with a second light function on a first batch 21 the presentation area 05 or on the outside of the lamp interior 04 through the lens 03 visible part of the display area 05 whereas the first light function is presented in an alternative or additional combination with a third and / or fourth and / or further light function on one of the first part 21 different lot 21 the presentation area 05 or from outside the luminaire interior 04 through the lens 03 visible part of the display area 05 can be represented.
  • As a result, the variable representations of arbitrary combinations of currently required lighting functions, for example, can always be displayed in such a way that the individual lighting functions and / or a particularly important light function are currently displayed most useful because they are represented, for example, by their arrangement on the display surface 05 are best seen by other road users.
  • Preferably, at least one display surface comprises 05 an OLED screen, each pixel of the OLED consists of at least two each formed by an organic light emitting diode subpixels (OLED subpixel), of which at least two subpixels light of different primary colors are able to radiate.
  • The pixels may have RGB subpixels (red green blue subpixels) or RGBY subpixels (red green blue yellow subpixels). For RGB subpixels, the subpixels of a pixel emit red, green, and blue light, with each subpixel emitting light in one of these primary colors. In RGBY subpixels, the subpixels of a pixel emit red, green, blue, and yellow (yellow) light, with each subpixel emitting light in one of these primary colors.
  • Alternatively, other color subpixels in chromaticity and number, which are provided to represent the desired color space required to represent the required for the light functions of the motor vehicle light colors of light.
  • The RGB subpixels or RGBY subpixels or the subpixels selected alternatively according to the color space are used to control the local color mixing by means of the control means 06 electronically controlled.
  • The subpixels are used by the control means 06 electronically controlled with respect to their brightness to produce the locally desired light color from the mixture of the color components of the basic colors emitted by the sub-pixels for the light function, such as brake light function BL, repeat flashing function WL, tail light function SL, reversing light function RL. The games assigned to the respective light colors 21 then form the geometric shape of the respective light function on the display surface 05 ,
  • The subpixels are preferably OLED subpixels.
  • Instead of OLED subpixels, alternatively sub-structured LED subpixels or a plurality of color lasers can be used to generate the desired local color location.
  • The at least one of the motor vehicle light 01 housed display area 05 or at least one of a plurality of the motor vehicle light 01 housed presentation surfaces 05 can be like in 1 shown in the luminaire interior 04 be arranged or housed.
  • The at least one of the motor vehicle light 01 housed display area 05 or at least one of a plurality of the motor vehicle light 01 housed presentation surfaces 05 may alternatively or additionally to the lighting interior 04 facing inside of the lens 03 provided and / or through the inside of the lens 03 be formed.
  • In addition, alternatives are conceivable, such as a placement or arrangement on an example of the lens 03 opposite rear wall of the lamp interior 04 or one through the lens 03 through visible wall of the housing 02 ,
  • Different combinations of the variable representations of currently required light functions RL, BL, WL, SL, NL different and / or the same light colors of a motor vehicle light 01 At least you can see through the lens 03 visible part of the display area 05 share in proportion, as in 10a) , b), c), d) shown schematically. At first, at least the whole is through the lens 03 visible part of the display area 05 the variable representations of each individually and individually currently required light function RL, BL, WL, SL as in 10a) presented for use. Currently, for example, as in 10a) shown only a taillight function RL or a brake light function BL or a repeated flashing light function WL or a reversing light function SL needed, the variable representation of this light function is the entire display area 05 and thus the entire lens 03 as a light passage area available. For the rear fog light function NL, this possibility is eliminated since it is required by law that the rear fog light function NL may only be in operation together with the tail light function RL.
  • If another light function RL, BL, WL, SL, NL is added because it is currently required by switching on a further light function RL, BL, WL, SL, NL, then the variable representations of the currently required or active light functions RL , BL, WL, SL, NL the use of at least the light through the lens 03 visible part of the display area 05 share. This happens as in 10b) to d) for light functions RL, BL, WL, SL, NL shown area-wise.
  • For example, in addition to a currently required tail light function RL currently required brake light function BL variable representation of the taillight function RL the variable representation of the brake light function BL on the display surface 05 partially or as in 10b) completely surrounded. If a repeating flashing light function WL is additionally added to the brake light function BL currently required when the tail lamp function RL is switched on, then it can be provided that the variable representations of both the brake light function BL and the repeated flashing light function WL are taken together from the variable representation of FIG Taillight function RL completely or as in 10c) may be partially surrounded.
  • If, in addition, for example, a rear fog light function NL is required and at the same time a reversing light function SL, for example during a hindrance in the dark and fog obstructed view backwards turning into a parking space, then share the currently required light functions taillight function RL, brake light function BL, repeat flashing light function WL, rear fog light function NL and reversing light function SL the use of the display area 05 , as in 10d) shown. In this case, the backlight function RL can surround the other currently required light functions BL, WL, NL, SL either individually or jointly partially or completely.
  • The proportional area of the use of the display area 05 by the variable representations of the individual light functions RL, BL, WL, SL, NL of several currently required light functions RL, BL, WL, SL, NL can at least depend on a ratio of the importance of the signal functions of the participating light functions RL, BL, WL, SL, NL and / or the prevailing ambient conditions.
  • It is important to emphasize that in the invention, no fixed assignment of parts of the display area 05 must be provided for the light functions RL, BL, WL, SL, NL. In principle, for example, an individual adaptation of an assignment is still on the finished motor vehicle light 01 possible. As a result, the production cost for the previously required type diversity and variance of automotive lights can be significantly reduced.
  • The at least one agent 06 for the variable representation of the currently required one or more light functions RL, BL, WL, SL, NL of the motor vehicle light 01 at least on the whole, from a viewer B from outside the luminaire interior 04 through the lens 03 visible part of the display area 05 can at least include.
  • By the invention, the usual prior art strict Kammentrennung the individual lighting functions can be canceled. The invention allows the application of the principle of video display on motor vehicle lights.
  • This allows any outlines and geometric shapes of the light functions and a setting their brightness or dimming. If multiple light sources of different colors or suitable optical filter arrangements are used, mixed colors or separate single-color fields can also be generated in the display.
  • The invention is particularly industrially applicable in the field of production of motor vehicle lights.
  • LIST OF REFERENCE NUMBERS
  • 01
    Motor vehicle light
    02
    casing
    03
    Lens
    04
    Lights Interior
    05
    display area
    06
    control means
    21
    Part of the presentation area 05
    RL
    Taillight function
    BL
    Brake light
    WL
    Wiederholblinklichtfunktion
    SL
    Reversing light function
    NL
    Rear fog light function
    B
    observer
  • QUOTES INCLUDE IN THE DESCRIPTION
  • This list of the documents listed by the applicant has been 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
    • US 7642908 B2 [0014]
    • DE 19753096 A1 [0016]
    • DE 19945775 A1 [0017]
    • EP 2503222 A1 [0021, 0052]

Claims (9)

  1. Motor vehicle light ( 01 ), which is designed as a tail lamp, with at least two light functions (RL, BL, WL, SL, NL) of different light color and one of a housing ( 02 ) and a lens ( 03 ) enclosed luminaire interior ( 04 ), comprising at least one device for optically signaling variable information, comprising: - at least one device from the outside through the lens ( 03 ) at least partially visible, light corresponding to a currently required light function (RL, BL, WL, SL, NL) or light corresponding to a combination of two or more currently required light functions (RL, BL, WL, SL, NL) of the motor vehicle light ( 01 ) radiating display surface ( 05 ) consisting of several pixels, each light at least in the light colors of the motor vehicle lamp ( 01 ) are capable of emitting light functions (RL, BL, WL, SL, NL) to be fulfilled, each pixel comprising a plurality of subpixels, each subpixel of which is capable of emitting light of a primary color, such that the subpixels of a pixel jointly emit light to the pixel Fulfillment of the different light functions (RL, BL, WL, SL, NL) of the motor vehicle light ( 01 ) can radiate different light colors needed, and - at least one control means ( 06 ) for controlling the light emission of the subpixels of each pixel, for emitting light of each color of light from the motor vehicle lamp ( 01 ) to be fulfilled light functions (RL, BL, WL, SL, NL) by each pixel and each pixel controlled by the control means corresponding to the current need does not emit light or light of a particular color of light, the control is such that when currently requires a light function is, all pixels of the display area ( 05 ) are controlled so that they emit light in the light color of this one momentarily required light function, and if two or more light functions are currently required, the pixels of a first batch ( 21 ) of the display area ( 05 ) are controlled so that they emit light in the light color of a first currently required light function, as well as the pixels of at least one second batch ( 21 ) of the display area ( 05 ) are driven so that they emit light in the light color of the at least one second currently required light function.
  2. Motor vehicle light according to claim 1, characterized in that at least one display surface ( 05 ) comprises an OLED screen, wherein each pixel of the OLED consists of at least two each formed by an organic light emitting diode subpixels (OLED subpixel), of which at least two subpixels light of different primary colors are able to radiate.
  3. Motor vehicle lamp according to claim 1 or 2, characterized in that the pixels RGB subpixels (red-green-blue subpixels) or RGBY subpixels (red-green-blue-yellow subpixels) have.
  4. Motor vehicle light according to one of the preceding claims, characterized in that at least one of the motor vehicle light ( 01 ) hosted display area ( 05 ) in the luminaire interior ( 04 ) is arranged.
  5. Motor vehicle light according to one of the preceding claims, characterized in that at least one of the motor vehicle light ( 01 ) hosted display area ( 05 ) at the interior of the lamp ( 04 ) facing inside of the lens ( 03 ) is provided.
  6. Motor vehicle light according to one of the preceding claims, characterized in that at least one of the motor vehicle light ( 01 ) hosted display area ( 05 ) through the inside ( 09 ) of the lens ( 03 ) is formed.
  7. Motor vehicle light according to one of the preceding claims, characterized in that at least one of the motor vehicle light ( 01 ) hosted display area ( 05 ) on one of the lens ( 03 ) opposite rear wall of the lamp interior ( 04 ) is provided.
  8. Motor vehicle light according to one of the preceding claims, characterized in that the area-proportion ratio of the use of the display surface ( 05 ) by the variable representations of the individual light functions (RL, BL, WL, SL, NL) of several currently required light functions (RL, BL, WL, SL, NL) at least depending on a ratio of the importance of the signal functions of the light functions involved (RL, BL , WL, SL, NL) and / or the prevailing environmental conditions.
  9. Motor vehicle light according to one of the preceding claims, characterized in that the subpixels are OLED subpixels.
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