EP2745161A1 - Dispositif d'affichage - Google Patents

Dispositif d'affichage

Info

Publication number
EP2745161A1
EP2745161A1 EP12748231.3A EP12748231A EP2745161A1 EP 2745161 A1 EP2745161 A1 EP 2745161A1 EP 12748231 A EP12748231 A EP 12748231A EP 2745161 A1 EP2745161 A1 EP 2745161A1
Authority
EP
European Patent Office
Prior art keywords
combiner
display device
drive
drive mechanism
guide
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
EP12748231.3A
Other languages
German (de)
English (en)
Inventor
Stefan Haida
Jeetendra Khare
Vaibhav ANAGAL
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Johnson Controls GmbH
Original Assignee
Johnson Controls GmbH
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Johnson Controls GmbH filed Critical Johnson Controls GmbH
Publication of EP2745161A1 publication Critical patent/EP2745161A1/fr
Withdrawn legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B27/00—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00
    • G02B27/01—Head-up displays
    • G02B27/0149—Head-up displays characterised by mechanical features
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B27/00—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00
    • G02B27/01—Head-up displays
    • G02B27/0149—Head-up displays characterised by mechanical features
    • G02B2027/0154—Head-up displays characterised by mechanical features with movable elements
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B27/00—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00
    • G02B27/01—Head-up displays
    • G02B27/0149—Head-up displays characterised by mechanical features
    • G02B2027/0154—Head-up displays characterised by mechanical features with movable elements
    • G02B2027/0156—Head-up displays characterised by mechanical features with movable elements with optionally usable elements
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B27/00—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00
    • G02B27/01—Head-up displays
    • G02B27/0179—Display position adjusting means not related to the information to be displayed
    • G02B2027/0183—Adaptation to parameters characterising the motion of the vehicle

Definitions

  • the present invention is based on a display device, in particular a head-up display, with a lighting means, an imaging unit and a deflection means.
  • Such head-up displays are well known and have been used for many years already in aircraft cockpits and in motor vehicles to provide the pilot or driver in a particularly pleasant way information, such as status indicators on the operating condition of the aircraft
  • a virtual image containing the information is generated, which is projected either directly on a windshield of the vehicle or on a separate combiner arranged in the driver's field of vision
  • Such a combiner typically includes a specular and translucent disk so that the operator can see through the combiner and thus overlay the virtual image projected onto the combiner with corresponding environmental information passing through the combiner despite the use of a separate display disc, which can be adapted in terms of their design mainly on a high-quality display of the virtual image, the driver's field of view is almost not affected.
  • Such a display device is known for example from the document DE 20 2006 020 591 U1.
  • Such combiners are mainly required only when the vehicle is in a running state and therefore the driver needs up-to-date information about the vehicle status of a navigation system, an entertainment system, a telephone or the like. For this reason, it is desirable that the combiner be disposed between a use position in which the combiner for displaying the virtual image in a driver's field of view and a stowed position in which the combiner is in a retracted and in particular protected position from the use position is located, movable.
  • the present invention is therefore based on the object to provide a display device in which the combiner is movable in a simple, reliable and safe manner between the use position and the stowed position and which is relatively inexpensive to implement. Further, it is an object of the present invention to achieve a comparatively fluid and substantial movement of the combiner.
  • a display device in particular for a vehicle, comprising a base member and a relative to the base member movable combiner, said combiner by means of a drive mechanism between a use position in which a virtual image is projected onto the combiner, and a Stowed position is movable, wherein the drive mechanism comprises a translation mechanism.
  • the transmission mechanism changes, in particular lengthened, the displacement of the drive, in particular a linear drive, which can be made smaller, for example, thereby.
  • the transmission ratio is changeable.
  • different display devices can be equipped with the same drive.
  • this translation mechanism is a scissors gear.
  • the combiner is driven by the translation mechanism, in particular a scissors joint, to move from the stowed position to the use position and vice versa.
  • the use of a scissors hinge has the advantage that a comparatively compact, robust and cost-effective drive mechanism is realized.
  • Another advantage is that the drive mechanism is relatively easy to adapt to the specific space requirements, especially in a vehicle adaptable. For example, only the number of links and / or the length of the individual links of the scissors joint need to be adapted accordingly.
  • a scissors joint according to the present invention comprises in particular an arrangement of at least two intersecting rods (also referred to as scissor legs), which are rotatably connected to each other in its central region, ie, the two intersecting rods are assembled in the manner of a pair of scissors.
  • Such an arrangement is referred to below as the member of the scissors joint, wherein the scissors joint is preferably composed of a plurality of successively connected members and wherein the bars of two adjacent members respectively to the mutually facing end points of the rods are rotatably connected to each other.
  • the display device comprises a drive, in particular a rotary drive, for example a rotatable cam, or a linear drive, which is provided for actuating the translation mechanism, preferably the scissors link and in particular the first member of the scissors link.
  • the drive in particular a linear drive, engages at a crossing point of the two bars of the first member and moves the crossing point for actuating the scissors joint in the longitudinal direction, while an end point of the first member is fixed to the base member.
  • the scissors hinge thus serves, in particular, as a translation means for translating a comparatively small movement of the drive, for example along the longitudinal direction, into a larger movement, for example along the longitudinal direction of the display device.
  • the drive is preferably coupled to at least one of the end points of the two rods of the first member such that the two end points are movable relative to each other and perpendicular to the longitudinal direction. It is also conceivable that one of the two end points of the first member is rotatably mounted on the base member, while the other end point is either translationally moved by means of the drive in the direction of the base member attached end point or translationally against the direction of the base member fixed end point away from this end point becomes.
  • the linear drive preferably comprises a linear motor, a threaded rod drive or a tooth / drive belt, in particular each driven by an electric motor. It would also be conceivable, of course, for the linear drive to comprise a piston-cylinder drive or an electrolinear cylinder.
  • the drive mechanism is at least partially made of a material comprising a shape memory alloy.
  • the scissors gear and more preferably the members or rods of the scissors gear are made of a material which comprises a Formgedambanisleg réelle.
  • the material preferably comprises a memory metal (also referred to as SMA material ("shape memory allow”)).
  • the drive mechanism has a control unit which is configured to provide the shape memory alloy with a control current.
  • a movement of the drive mechanism is induced by the control current.
  • the drive comprises a bionic functional principle.
  • the drive mechanism comprises hydraulic and / or pneumatic drives.
  • such hydraulic and / or pneumatic drives are combined with novel EAP-based drive units.
  • the combiner is attached to a fastening element, wherein the fastening element is fastened to a second member of the scissors joint.
  • the second member is arranged in particular on an end facing away from the first member along the longitudinal direction of the scissors joint.
  • the combiner preferably comprises an at least partially specular and translucent disk, which is held by the fastening element.
  • This disc is preferably made of plastic, in particular of a plastic, which does not splinter on failure or forms sharp edges in order to reduce the potential danger of the display device according to the invention.
  • the combiner In the use position, the combiner is preferably moved into a field of view of a vehicle occupant. In this case, the vehicle occupant can preferably see through the combiner and thus perceive almost unlimited environmental information appearing through the combiner.
  • a virtual image can be projected onto the combiner in order to display to the driver, for example, vehicle information or the like.
  • the display device is preferably integrated in a vehicle interior trim part, for example a dashboard or a center console.
  • the combiner is preferably projecting from the vehicle interior trim part vertically or obliquely, in particular in the direction of a windshield of the vehicle into the vehicle interior, while the combiner is preferably fully retracted into the vehicle interior trim part through an opening in the vehicle interior trim part in the stowed position.
  • the display device is designed such that the combiner moving from the stowed position to the use position, a combination of a linear movement along the longitudinal direction of the device according to the invention and a pivot / rotational movement about a perpendicular to the longitudinal direction Swivel axis performs.
  • both movements are effected by the same drive mechanism.
  • the fastening element of the combiner preferably has lateral guide elements, which are guided in lateral guide rails of the base element and are preferably mounted such that they can rotate.
  • one or more rotary / pivot bearings are provided on the fastening element and / or on the guide element.
  • the guide rails preferably have a curvature such that the guide elements have a greater distance from a base plate of the base element in the use position than in the stowed position.
  • the guide rails and the scissors joint thus preferably do not run strictly parallel to one another perpendicular to the base plate of the base element, but preferably the distance between the extended scissors joint and the guide rails changes along the direction perpendicular to the base plate, in particular continuously, along the longitudinal direction.
  • the fastening element is preferably fastened in an attachment point to at least one end point of the second member, wherein parallel to a longitudinal direction of the combiner, in particular parallel to the main extension plane of the combiner, the guide elements are preferably arranged between the combiner and the attachment point.
  • the guide elements are in the use position perpendicular to the bottom plate and in the stowed position at a different angle, preferably substantially horizontally, preferably arranged between each other between the combiner and the attachment point.
  • each guide element has two guide means, for example pins, which are mounted separately from one another in the guide rail and cover different paths, at least in sections, from the stowage position to the use position. This allows a combined linear and rotary / pivoting movement of the combiner.
  • FIG. 1 is a schematic perspective view of a display device according to an exemplary embodiment of the present invention.
  • FIG. 2 shows a schematic detail view of a display device according to the exemplary embodiment of the present invention.
  • FIG. 3 shows a schematic plan view of a display device according to the exemplary embodiment of the present invention.
  • FIGS. 1 and 2 show a schematic perspective view of a display device 1 according to an exemplary embodiment of the present invention.
  • the display device 1 comprises a base element 2, which can be integrated into an unillustrated interior trim part of a vehicle.
  • the base element 2 has attachment tabs 3 for attachment to the interior trim part.
  • the display device 1 further comprises a combiner 4, which comprises a specular and translucent disc.
  • the combiner 4 can be moved between a use position (shown in FIGS. 1, 2 and 3) and a stowed position (not shown). In the stowed position, the combiner 4 is aligned substantially parallel to a bottom plate 5 of the base element 2 and is located substantially inside the base element 2.
  • the combiner 4 is extended out of the base element 2, wherein the combiner 4 substantially perpendicular to Base plate 5 is aligned and protrudes into a field of view of a vehicle occupant.
  • the combiner 4 protrudes in particular from the interior trim part perpendicular or obliquely, in particular in the direction of a windshield of the vehicle into the vehicle interior.
  • a virtual image can be projected onto the combiner 4 by means of a projection unit, not shown, in order to display vehicle information or the like to the vehicle occupant, for example.
  • the combiner 4 is moved by means of a drive mechanism between the use position and the stowed position.
  • the drive mechanism here comprises a scissors joint 6.
  • the scissors joint 6 has a plurality of successively arranged members 7, wherein each member 7 has at least two cross-arranged rods 8 (also referred to as scissor legs), which are each connected, for example, halfway rotatably with each other.
  • the scissors hinge 6 comprises at a first end a first member 7, wherein the two rods 8 of the first member 7 are rotatably connected to each other in a crossing point 9.
  • a linear drive 15 of the display device 1 attacks at this crossing point 9, while an end point of the rods 8 is rotatably fixed to the base member 2 and the other end point is mounted in each case displaceably.
  • the crossing point 9 is moved by means of the linear drive 15 in the longitudinal direction 100.
  • the scissors joint 6 thus serves in particular as a translation means to translate a comparatively small movement of the linear drive 9 along the longitudinal direction 100 into a significantly greater movement of the scissors joint 6 along the longitudinal direction 100.
  • the scissors joint 6 has a second member 7, which is arranged on an end of the scissors joint 6 facing away from the first member 7 along the longitudinal direction 10.
  • the end points 16 of the two rods 8 of the second member 7 are fastened to the fastening means 10.
  • a plurality of further members 7 are preferably arranged and not shown for reasons of clarity.
  • the combiner 4 is further held by the fastener 10.
  • the fastening element 10 is displaceably mounted along the longitudinal direction 100 relative to the base element 2.
  • the fastener 10 has for this purpose lateral guide elements 1 1, which are guided longitudinally displaceable in lateral guide rails 12 of the base member 2.
  • the guide rails 12 are curved relative to the longitudinal direction 100 in such a way that the distance between the guide rails 12 and the base plate 5 preferably varies continuously along the longitudinal direction 100.
  • the guide elements 1 1 are also rotatably mounted in the guide rails 12, so that the combiner 4 is pivotable about a defined by the guide elements 1 1 pivot axis 101 (indicated by arrow 102).
  • a side facing away from the combiner 4 with respect to the pivot axis 101 side of the fastener 10 is secured in at least one attachment point on the second member 7.
  • the fastening element 10 When the combiner 4 is in the stowed position, the fastening element 10 is arranged on a first end 13 of the base element 2 facing away from the opening of the interior trim part along the longitudinal direction 100.
  • the scissors joint 6 is now driven by means of the linear drive 15 such that the fastening element 10 moves from a first end 13 of the base element 2 in the direction of a second end 14 of the base element 2 along the longitudinal direction 100 is moved.
  • the guide rail 12 As a result of the curvature of the guide rails 12, the guide rail 12 is removed from the bottom plate 5, so that in addition to the linear movement along the longitudinal direction 100, an upright pivoting movement of the fastening element 10 about the pivot axis 101 is generated.
  • the combiner 4 is pivoted about the pivot axis 101 and thus pushed by the arranged in the region of the second end 14 opening of the interior trim part (not shown) in the field of view of the vehicle occupant and erected at the same time.
  • the method of the combiner 4 of the use position in the stowed position in which case the linear drive 15 is driven in the reverse direction.
  • the scissors joint 6 and in particular the links 7 or rods 8 are made of a material which comprises a shape-memory alloy (also referred to as SMA material (shape memory allow)).
  • the drive further comprises a control unit configured to energize the die-molded alloy with a control current.
  • novel materials e.g. SMA, EAP, to be combined with conventional electromotive or spring-driven drives in order to depict the functional principles of nature (specifically: Bryozoa) and, in accordance with transfer functions from bionics, into a technical solution for the present combiner drive.
  • FIG. 3 shows a top view of the display device 1 shown in FIGS. 1 and 2.

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Instrument Panels (AREA)
  • Fittings On The Vehicle Exterior For Carrying Loads, And Devices For Holding Or Mounting Articles (AREA)

Abstract

La présente invention concerne un dispositif d'affichage, en particulier un dispositif d'affichage tête haute, comprenant un moyen d'éclairage, une unité d'imagerie et un moyen de déviation.
EP12748231.3A 2011-08-18 2012-08-17 Dispositif d'affichage Withdrawn EP2745161A1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE102011111007 2011-08-18
DE102011118853A DE102011118853A1 (de) 2011-08-18 2011-11-18 Anzeigevorrichtung
PCT/EP2012/066128 WO2013024165A1 (fr) 2011-08-18 2012-08-17 Dispositif d'affichage

Publications (1)

Publication Number Publication Date
EP2745161A1 true EP2745161A1 (fr) 2014-06-25

Family

ID=47625335

Family Applications (1)

Application Number Title Priority Date Filing Date
EP12748231.3A Withdrawn EP2745161A1 (fr) 2011-08-18 2012-08-17 Dispositif d'affichage

Country Status (5)

Country Link
US (1) US9360669B2 (fr)
EP (1) EP2745161A1 (fr)
JP (2) JP2014525597A (fr)
DE (1) DE102011118853A1 (fr)
WO (1) WO2013024165A1 (fr)

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DE102013006557B4 (de) 2013-04-16 2015-04-09 Audi Ag Halterung für eine in einem Kraftfahrzeug zu halternde Anzeigeeinrichtung
FR3007852B1 (fr) * 2013-06-28 2016-12-23 Valeo Etudes Electroniques Afficheur, notamment afficheur tete haute, en particulier pour vehicule automobile
FR3021417B1 (fr) * 2014-05-20 2017-10-06 Peugeot Citroen Automobiles Sa Dispositif d'affichage
DE102014211485A1 (de) * 2014-06-16 2015-12-17 Continental Automotive Gmbh Positioniereinrichtung für eine Combinerscheibe einer Head-Up-Anzeige eines Fahrzeugs
JP6813268B2 (ja) * 2016-02-16 2021-01-13 株式会社小松製作所 作業車両
DE102016109872A1 (de) 2016-05-30 2017-11-30 Valeo Schalter Und Sensoren Gmbh Anzeigevorrichtung, Fahrerassistenzsystem und Verfahren für ein Kraftfahrzeug, sowie Kraftfahrzeug
DE102016123183B4 (de) * 2016-12-01 2018-11-08 Valeo Schalter Und Sensoren Gmbh Antrieb für eine Anzeigevorrichtung eines Kraftfahrzeugs und Verfahren zum Betreiben dazu
CN110099818A (zh) * 2016-12-21 2019-08-06 富士胶片株式会社 投影型显示装置、投影型显示装置的控制方法、投影型显示装置的控制程序

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Also Published As

Publication number Publication date
JP2014525597A (ja) 2014-09-29
DE102011118853A1 (de) 2013-02-21
US20150092278A1 (en) 2015-04-02
US9360669B2 (en) 2016-06-07
WO2013024165A1 (fr) 2013-02-21
JP2017215598A (ja) 2017-12-07

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