WO2017147158A1 - Dispositif d'affichage tête haute et son procédé de construction - Google Patents

Dispositif d'affichage tête haute et son procédé de construction Download PDF

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Publication number
WO2017147158A1
WO2017147158A1 PCT/US2017/018893 US2017018893W WO2017147158A1 WO 2017147158 A1 WO2017147158 A1 WO 2017147158A1 US 2017018893 W US2017018893 W US 2017018893W WO 2017147158 A1 WO2017147158 A1 WO 2017147158A1
Authority
WO
WIPO (PCT)
Prior art keywords
display device
housing
portable head
subassembly
magnet
Prior art date
Application number
PCT/US2017/018893
Other languages
English (en)
Inventor
Douglas Simpson
Ali Rahimi
Sung Ook YANG
Jon Godston
Lars Gilstrom
Jesse MADSEN
Tome KARO
Mark Mcnally
Original Assignee
Navdy, Inc.
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 Navdy, Inc. filed Critical Navdy, Inc.
Publication of WO2017147158A1 publication Critical patent/WO2017147158A1/fr

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
    • B60K35/00—Instruments specially adapted for vehicles; Arrangement of instruments in or on vehicles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
    • B60K35/00—Instruments specially adapted for vehicles; Arrangement of instruments in or on vehicles
    • B60K35/20—Output arrangements, i.e. from vehicle to user, associated with vehicle functions or specially adapted therefor
    • B60K35/21—Output arrangements, i.e. from vehicle to user, associated with vehicle functions or specially adapted therefor using visual output, e.g. blinking lights or matrix displays
    • B60K35/22—Display screens
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
    • B60K35/00—Instruments specially adapted for vehicles; Arrangement of instruments in or on vehicles
    • B60K35/20—Output arrangements, i.e. from vehicle to user, associated with vehicle functions or specially adapted therefor
    • B60K35/28—Output arrangements, i.e. from vehicle to user, associated with vehicle functions or specially adapted therefor characterised by the type of the output information, e.g. video entertainment or vehicle dynamics information; characterised by the purpose of the output information, e.g. for attracting the attention of the driver
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
    • B60K35/00—Instruments specially adapted for vehicles; Arrangement of instruments in or on vehicles
    • B60K35/50—Instruments characterised by their means of attachment to or integration in the vehicle
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
    • B60K35/00—Instruments specially adapted for vehicles; Arrangement of instruments in or on vehicles
    • B60K35/50—Instruments characterised by their means of attachment to or integration in the vehicle
    • B60K35/53—Movable instruments, e.g. slidable
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
    • B60K35/00—Instruments specially adapted for vehicles; Arrangement of instruments in or on vehicles
    • B60K35/80—Arrangements for controlling instruments
    • 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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
    • B60K2360/00—Indexing scheme associated with groups B60K35/00 or B60K37/00 relating to details of instruments or dashboards
    • B60K2360/16—Type of output information
    • B60K2360/166—Navigation
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
    • B60K2360/00—Indexing scheme associated with groups B60K35/00 or B60K37/00 relating to details of instruments or dashboards
    • B60K2360/20—Optical features of instruments
    • B60K2360/33—Illumination features
    • B60K2360/334—Projection means
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
    • B60K2360/00—Indexing scheme associated with groups B60K35/00 or B60K37/00 relating to details of instruments or dashboards
    • B60K2360/55—Remote control arrangements
    • B60K2360/56—Remote control arrangements using mobile devices
    • B60K2360/563—Vehicle displaying mobile device information
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
    • B60K2360/00—Indexing scheme associated with groups B60K35/00 or B60K37/00 relating to details of instruments or dashboards
    • B60K2360/55—Remote control arrangements
    • B60K2360/56—Remote control arrangements using mobile devices
    • B60K2360/577—Mirror link with mobile devices
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
    • B60K2360/00—Indexing scheme associated with groups B60K35/00 or B60K37/00 relating to details of instruments or dashboards
    • B60K2360/60—Structural details of dashboards or instruments
    • B60K2360/66—Projection screens or combiners
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
    • B60K2360/00—Indexing scheme associated with groups B60K35/00 or B60K37/00 relating to details of instruments or dashboards
    • B60K2360/828—Mounting or fastening exchangeable modules

Definitions

  • the preferred embodiments relate to the field of head-up display devices for vehicles such as automobiles. Embodiments are directed to the mechanical construction of such devices to attain improved performance and to facilitate manufacturing.
  • HUD head-up display
  • a projection surface which may be a screen that is further reflected by way of example to another device, such as an optical combiner.
  • HUD head-up display
  • the choice of form factor, component division, and other configuration aspects can affect functionality, efficiency, longevity, price, complexity, consumer satisfaction, and reliability, among other things.
  • a portable head-up display device comprising a housing with a top subassembly and a bottom subassembly.
  • the device also comprises a projector, coupled to the bottom subassembly, and for projecting light beams representative of an image.
  • the device also comprises a screen, coupled to the bottom subassembly, and for receiving the light beams so as to provide a representation of the image.
  • the device also comprises a combiner, pivotally coupled to the housing, for receiving a reflection of the representation of the image.
  • Figure 1 illustrates, in an automotive context, a HUD device according to a preferred embodiment and situated generally atop a car dashboard DSH and in view of a driver DRV.
  • Figure 2 illustrates a perspective view of a preferred embodiment HUD device.
  • Figure 3 illustrates an exploded view of various of preferred embodiment components of the HUD device.
  • Figures 4a and 4b illustrate top down views of a bottom housing subassembly of a preferred embodiment HUD device.
  • Figure 5a illustrates an exploded view of a preferred embodiment tunnel assembly.
  • Figure 5b illustrates a cross-sectional view of the preferred embodiment tunnel assembly.
  • Figure 5c illustrates the installation of the preferred embodiment tunnel assembly into the HUD device.
  • Figure 6 illustrates a top down view of the HUD device after assembly so as to illustrate an additional aspect that facilitates interior air flow within the device.
  • Figure 7a illustrates a top perspective view of a preferred embodiment mounting and electrical interfacing system onto which the HUD device is affixed,
  • Figure 7b illustrates an exploded view of the HUD device relative to the mounting and electrical interfacing system of Figure 7a.
  • Figure 8 illustrates a cross-sectional view of the HUD device and system as shown in perspective views in Figure 7b. Description of Embodiments
  • a head-up display device that can be readily mounted to and removed from an interior surface of a vehicle, such as an automobile dashboard, is provided according to these embodiments.
  • Certain example aspects of a head-up display that may be constructed according to these embodiments are described in: (i) co-pending U.S. application S.N. 14/806,530 filed July 22, 2015, which published as U.S. Patent Application Publication No. US 2016/0025973; (ii) co-pending U.S. design application S.N. 29/554,431 filed February 11, 2016; (iii) co-pending U.S. design application S.N. 29/554,457 filed February 11, 2016; and (iv) co-pending U.S. design application S.N. 29/554,482 filed February 11, 2016, all commonly assigned herewith and incorporated herein by reference.
  • HUD device 2 in this context sits on top of a car dashboard DSH, typically in view by a driver DRV above the speedometer and other gauges or operational displays (not shown) provided within dashboard DSH, and above a steering wheel SWH.
  • HUD device 2 provides a see-through image that displays information relevant to driver DRV while driving the vehicle, without blocking the view of the road through windshield WSH.
  • HUD device 2 is constructed so as to be portable, easily placed atop the dashboard DSH of a variety of vehicles, and easily removable for use in another vehicle or for security purposes, such as when driver DRV is parking the car in a public parking area.
  • HUD device 2 is constructed to have a compact size so that it can sit on top of dashboard DSH, without significantly interfering with the driver's view.
  • housing 4 of HUD device 2 below which are various control electronics 6 (not shown in Figure 2, but see Figures 4a-4b), for example as may be mounted on one or more printed circuit boards, and that carry out the data and image processing involved in the operation of HUD device 2.
  • Housing 4 also encloses a projector engine 10 (not shown in Figure 2, but see Figure Figures 4a-4b), which, for purposes of this description, refers to a projection system, including the optics, light modulation, and light source devices necessary to project an image suitable for use in HUD device 2 according to these embodiments.
  • projector engine 10 emits light beams representative of an image to be displayed, where in general from the view of Figure 2 those beams pass through a light tunnel assembly, described in detail later, and exit from an aperture 4 A in housing 4 toward a curved screen 12, where screen 12 is not visible from the perspective view of Figure 2 but is on an opposing surface from the driver facing surface 4 DFS of housing 4 as detailed later.
  • Screen 12 is a reflective surface, for example a high-gain, in the optical sense, curved reflective surface, positioned relative to and to receive image projection beams from projector engine 10, so that the light projected by projector engine 10 forms a "real" (i.e., human viewable) image on screen 12.
  • screen 12 reflects the real image it receives from engine 10 in a forward direction (i.e., toward the windshield) to a combiner 14.
  • Combiner 14 is a semi-transparent curved element that combines light from two directions, namely that transmitted through windshield WSH and that reflected from screen 12, to form a combined "virtual" image that is viewable by driver DRV in the arrangement of Figure 1.
  • Combiner 14 is semi- transparent in the sense that road conditions and other visual information ahead of the vehicle (i.e., light entering through windshield WSH) can be seen by driver DRV through combiner 14, but on which the images projected by projector engine 10 and reflected by screen 12 also will be visible to driver DRV.
  • Figure 2 shows combiner 14 as physically coupled to housing 4 by way of a hinge 16C, whereas, as detailed below, screen 12 is preferably physically coupled directly to housing 4 and a subassembly beneath it, which as also detailed below is the same subassembly as is affixed projector engine 10.
  • Hinge 16C enables the angle of combiner 14 to be rotationally adjusted about its axis, so as to receive the image reflected by screen 12. This adjustability ensures good visibility of the image displayed to driver DRV for a variety of dashboard DSH geometries (i.e., regardless of the flatness of the top surface of dashboard DSH) and with minimal distortion of the image, as will be described in further detail below.
  • FIG. 3 illustrates an exploded view of various of the components of HUD device 2, with further views described later, and while Figure 3 highlights additional benefits of a preferred embodiment.
  • HUD device 2 includes a top housing subassembly 4THS and a bottom housing subassembly 4 B HS, where ultimately the two housing subassemblies are affixed together such as by a set of screws 4 SCR inserted upward from the bottom, and through the metal substructure, of bottom housing subassembly 4 B HS, SO as to then be received in respective receptacles beneath the upper surface of top housing subassembly 4TH S .
  • top housing subassembly 4THS is made of a plastic and is dark in color to prevent reflections on the interior of windshield WSH, but further that is either formed from, or covered/treated with, a material that reflects heat from solar radiation, particularly in the non-visible infrared (IR) spectrum.
  • IR non-visible infrared
  • this includes: (i) an IR reflective pigment; (ii) an IR pigment in the resin used for injection-molding of the outer surfaces of top housing subassembly 4THS; (iii) an IR transparent resin used to injection mold the outer surfaces of top housing subassembly 4 ⁇ , with a non-conductive metalized (NCVM) coating applied to the inside surfaces of top housing subassembly 4THS, thereby reflecting IR energy back through the IR transparent housing and away from HUD device 2; or (iv) an IR reflective pigment in a painted layer applied to top housing subassembly 4THS- Any of these techniques are preferred to lower the internal temperature of HUD device 2, which will protect the electronic components inside as well as reduce the noise generated by a fan blower 20 (as its RPM can be reduced), which is further discussed below.
  • NVM non-conductive metalized
  • FIG. 3 the exploded view of Figure 3 also permits a perspective view of projector engine 10 and tunnel assembly 18, both introduced earlier and now visible to be attached to bottom housing subassembly 4 B HS-
  • a fan blower 20 is affixed to bottom housing subassembly 4 B HS, where the windshield-facing- side 43 ⁇ 4yp ⁇ of bottom housing subassembly 4 BHS includes an air output port 4 A op proximate fan blower 20 and to the right as shown in Figure 3, and an air input port 4 An > to the left as shown in Figure 3, where as detailed later operation of fan blower 20 facilitates an air path drawing air in from air input port 4 A ip, and then passing generally along the inner sidewall of top housing subassembly 4THS, turning at encountered corners and accelerating in regions of converging structure, so as to cool internal components and to exit via air output port 4 AO p.
  • Screen 12 is also detailed further in Figure 3, and is shown in a preferred embodiment to comprise a screen frame 12 F and a screen membrane 12 M .
  • screen membrane 12 M provides the reflective attributes (e.g., gain) and is attached, such as by adhesive, to screen frame 12 F .
  • Screen frame 12 F provides the desired shaping to screen 12, such as in a convex fashion (i.e., curved toward), relative to projection engine 10.
  • the preferred convex shape may be spherical, substantially spherical, or biconic (e.g., cylindrically convex).
  • the curved surface may be concave relative to the received light image from projector engine 10, although such an approach may create bright spots or regions in the depiction of the screen image captured by combiner 14.
  • the degree of curvature of screen 12 is selected so that the light rays reflect from the surface of screen 12 to combiner 14, as noted earlier.
  • screen frame 12 F includes appropriate members for a snap-fit relationship into bottom housing subassembly 4BHS-
  • such members for the top of screen frame 12 F may include a plurality of slight extending tabs to fit in corresponding recesses near the interior top of, and at the opposing side, the driver-facing- side 4 DFS of top housing subassembly 4THS-
  • such members for the bottom of screen frame 12 F may include a one or more flexible hooks 12 H (see, e.g., Figure 8) at or near the bottom of screen frame 12 F whereby, during assembly, preferably the topside extending tabs are fitted into the described recesses, and then a hook 12 H proximate the bottom of screen frame 12 F (and screen member 12 M adhered thereon) is snap fitted beyond a retaining tab 4 RT (see, e.g., Figure 8) that is part of bottom housing subassembly 4 BHS .
  • Combiner 14 and hinge 16C are also shown in Figure 3.
  • a fitting 14 F for coupling to one or more retention parts of hinge 16C.
  • hinge 16C includes various components, as may be readily ascertainable to one skilled in the art, for coupling hinge 16C to fitting 14 F and also to the topside of housing 4, proximate its windshield-facing-side 4wpg.
  • an image field floor 22 is generally trapezoidal in shape so as to confirm in general, and to cover, to a trapezoidal aperture 4TPA in top housing subassembly 4THS.
  • top housing subassembly 4THS is coupled to bottom housing subassembly 4 B HS, such as by first tilting downward the windshield-facing-side 1 ⁇ 2 s of top housing subassembly 4THS toward bottom housing subassembly 4 BHS , whereby tabs 4 T fit into corresponding receptacles on the windshield-facing-side of bottom housing subassembly 4TBS, and then about that coupling the driver-facing-side 4 DFS of top housing subassembly 4TH S is swung (or dropped) downward atop the corresponding driver-facing- side of bottom housing subassembly 4TBS.
  • screws 4 S CR are affixed as introduced earlier (upward from bottom housing subassembly 4TBS) and then screen 12, comprising membrane 12 M already affixed to frame 12 F , is affixed as introduced above.
  • screen 12 is affixed near (e.g., preferably as one of the last structural components) in the assembly process.
  • top housing subassembly 4THS floor 22 is applied over aperture 4 ⁇ ⁇ and coupled to top housing subassembly 4THS by inserting tabs 22 T of floor 22 into corresponding receptacles in top housing subassembly 4TH S and then adhering floor 22 downward via adhesive strips/pads 22ADH- Lastly, combiner 14 is fitted in between the two parts of hinge 16C shown in exploded view, and then claimed/held in place by the single screw also shown.
  • FIGS 4a and 4b illustrate top down views of bottom housing subassembly 4BHS, where it can be seen that a considerable area is covered by various control electronics 6 and related structures.
  • Such electronics provide communication in combination with various functions in the automotive context, where such communications may be wired, wireless, or both.
  • HUD device 2 includes wireless communications functionality as part of or in conjunction with its control electronics 6, operable to carry out wireless transmission and receipt according to a conventional technology such as Bluetooth or other near-field communications (NFC) types for local communication with nearby devices (i.e., in the vehicle); longer-range communication capability such as cellular, satellite, FM and other radio communications additionally or alternatively may be implemented.
  • NFC near-field communications
  • the communications may be with a smartphone SPH (see Figure 1), which will typically be personal to driver DRV and include the appropriate software for communicating with HUD device 2.
  • HUD device 2 will be capable of displaying online-accessible information regarding traffic, weather conditions, text messages, email, and the like.
  • the wireless functionality of HUD device 2 also is operable to communicate with a remote wireless device in the vehicle as preferred embodiments also contemplate such a device, as may be affixed to steering wheel SWH and operated by the driver DRV for providing scrolling and selection commands, among others, by manipulation of a rotary knob and/or depressible (or touch-sensitive) button the on the wireless device.
  • the electronics also may communicate with one or more rear cameras (not shown), which may be deployed within the automobile, for example on the exterior rear of the vehicle, or internally to the vehicle such as on its ceiling or behind the driver's seat; communication between HUD device 2 and a rear camera(s) allows HUD device 2 to display images on combiner 14 showing views from behind the vehicle or of the interior behind driver DRV, as the case may be, without requiring driver DRV to physically turn around or take her eyes off the road.
  • rear cameras not shown
  • Wired communications may be effected in various manners, such as via USB port (not shown) or other wired communication with an on-board diagnostic port OBDP of the vehicle in which HUD device 2 is installed; by way of this connection, information regarding the operating parameters or condition of the vehicle, either directly or in combination with navigation information (distance to next filling station) can be displayed to driver DRV at combiner 14. It is contemplated that those skilled in the art having reference to this specification will be readily capable of implementing these functions, and additionally or alternatively other functions beyond those described, as desired, without undue experimentation.
  • control electronics 6 of HUD device 2 also permit HUD device 2 to respond to driver commands, whether communicated by the above-referenced remote wireless device, by hand gesture, or by voice.
  • control electronics 6 execute appropriate initialization routines by electronics 6, which may include a system CPU, so as to perform power-on self-test sequences, and the like.
  • the CPU also executes appropriate routines to pair its communications with the various devices in its vicinity, including smartphone SPH and perhaps certain functions of the vehicle, including the vehicle audio system, the on-board diagnostic port OBDP, rear-mounted vehicle camera RCM, and the like, as available and enabled for this installation.
  • control electronics 6 places HUD device 2 in a default condition that forwards the corresponding image data to projector engine 10 for display at combiner 14. It is contemplated that this default condition may be to display the current velocity of the vehicle, or the current location on a navigation system map, or even simply a "splash" screen at combiner 14 in the field of view of driver DRV. At this point in its operation, HUD device 2 is ready to receive commands from driver DRV, or to respond to incoming communications.
  • driver commands and responses from HUD device 2 ultimately projected images may relate, as examples, to Internet searching and response, communications from Twitter, phone calls, text messages, GPS related functionality, and other applications on smart phone SPH that provide audiovisual communications that can interface with HUD device 2 for projecting related images on combiner 14 and for soliciting user input, via device 2, that is then communicated back to smart phone SPH so that it may likewise communicate that information via its cellular or other connectivity to a remote location.
  • Figures 4a and 4b further illustrate the affixation of projection engine 10 to housing 4.
  • the optics included in projector engine 10 are contemplated to include some or all of the appropriate lenses, mirrors, light homogenization devices, polarization devices, filters such as dichroic filters that combine light, and such other optical devices known in the art and included in the construction of a modern projector.
  • Light modulation devices included in projector engine 10 may be any one of a number of types, including those known in the art as digital micromirror array devices (DMD) such as the DLPTM device from Texas Instruments Incorporated, liquid crystal on silicon (LCOS) light modulators, and transmissive LCD displays such as those used in LCD projectors or other type of spatial light modulator; other types of light modulation device suitable for use in some embodiments include a laser beam scanning (LBS) projector, in which a laser light source is modulated electronically or otherwise and the laser beam is scanned by one or more moving mirrors to scan the image, and any other form of image projection.
  • LBS laser beam scanning
  • the light source included in projector engine 10 may be one or more LEDs, one or more lasers, or other sources of light.
  • red, green, and blue LEDs or lasers are commonly used with DMD and LCOS modulators, to support what is known as a "full color" display, but of course other colors of light may additionally or alternatively be used.
  • projector engine 10 is contemplated to also include the appropriate electronics for controlling these elements, as known in the art. ⁇
  • FIG. 4a projection engine 10 is shown removed from bottom housing subassembly 4 BHS , but dashed lines show where a set (e.g., three) of screws 10 S CR are used along respective such dashed lines to affix projection engine into bottom housing subassembly 4 BHS .
  • a lens 10 L included in engine 10 is pointed generally toward housing driver-facing-side 4 DFS , where screen 12 (see Figure 3) will be installed so as to receive image projections by engine 10.
  • screen 12 is also affixed to bottom housing subassembly 4 BHS , thereby fixing the optical path distance (subject to a focus adjustment that can move lens 10 L toward or away from screen 12) between projection engine 10 and screen 12, so as to reduce the chance for changes in focus and alignment, and also reducing the possibility of any other connective or intermediary device couplings from changing, and thereby interfering with, the quality of the real image projected on screen 12.
  • FIG. 5a illustrates an exploded view of tunnel assembly 18.
  • Tunnel assembly from a top down view is generally trapezoidal in shape, with a narrower end for receiving light and a wider end for emitting it.
  • tunnel assembly 18 includes a top 18 T and bottom 18 B , where in a preferred embodiment protrusions extend from the bottom of top 18 T and are fitted through apertures in adhesive strips 18 A TB SO as to couple top 18 T and bottom 18 B together.
  • a plate glass 18 GL is also trapped therebetween and at one end of tunnel assembly 18 GL , as shown in exploded view in Figure 5 a but also positioned between top 18 T and bottom 18 B in Figure 5b.
  • each of top 18 T and bottom 18 B includes a respective recess into which a top and bottom edge of plate glass 18 GL fits, so as to retain plate glass 18 GL between top 18 T and bottom 18 B .
  • a foam gasket 18 FG having an adhesive around the perimeter of one of its sides, is placed so that the adhesive aligns foam gasket 18 FG around the perimeter of plate glass 18 GL ; thus, foam gasket 18 FG has a shape (e.g., square, rectangle) to match the outer perimeter of plate glass 18 GL .
  • foam gasket 18 FG at one end of tunnel assembly 18 aligns that gasket to abut with the light-emitting end of projection engine 10, thereby providing a moderate seal between the two, so as to reduce the opportunity for debris (e.g., dust) to reach the vicinity and that otherwise could interfere with the quality of the projected image.
  • debris e.g., dust
  • Figure 5b illustrates a vertical cross-sectional cutaway view of tunnel assembly 18, after the components described in connection with Figure 5a are assembled together.
  • the cross-sectional perspective of Figure 5b provides a view to the inner sidewall of tunnel assembly top 18 T ; from this view, note that the preferred embodiment further includes baffling 18 BFL along that inner sidewall, and indeed also in a preferred embodiment such baffling 18 BFL is along both sidewalls and the inner ceiling of top 18 T . Still further, preferably baffling 18 BFL is also included on the upper surface bottom 18 B .
  • part or all of such baffling is formed as a series of parallel ridges, wherein each ridge has approximately a same "saw tooth" profile with respect to one another, whereas the entire series is generally perpendicular to the path of light emitted by projection engine 10, through tunnel assembly 18.
  • a majority or all of this path i.e., within tunnel assembly 18
  • baffling 18 BFL (i) reduces the potential for the scattering of stray light that otherwise would be more likely to occur without the baffling; (ii) prevents concentration of stray light that is not intended to reach screen 12; and (iii) further ensures that the image that is projected by projection engine 10 is as clear as possible.
  • Figure 5c illustrates the assembled tunnel assembly 18 and references its installation location into bottom housing subassembly 4 B HS- More particularly, according to a preferred embodiment, the various components forming tunnel assembly 18 efficiently couple together to provide a unitary device that may be then singularly installed into housing 4. Particularly, recalling from Figures 4a and 4b the affixation of projection engine 10 to bottom housing subassembly 4 B HS, thereafter, tunnel assembly 18 is affixed (e.g., preferably by adhesive strips 18AB S shown in Figure 5a) to bottom housing subassembly 4 B HS, SO that foam gasket 18 FG at one end of tunnel assembly 18 abuts with the light-emitting end of projection engine 10.
  • adhesive strips 18AB S shown in Figure 5a
  • the end of tunnel assembly 18, opposite that where glass 18 GL and foam gasket 18 FG are positioned is preferably left open to ambient rather than likewise covered with glass; in this regard, it has been determined in connection with preferred embodiments that the addition of glass at this location can diminish the quality of the real image received by screen 12.
  • Figure 6 illustrates a top down view of HUD device 2 after assembly and so as to illustrate an additional aspect that facilitates interior air flow within the device.
  • a fan blower 20 shown in phantom in Figure 6
  • an air output port 4 AO p formed in a first side of the windshield-facing-side of bottom housing subassembly 4 BHS .
  • an air input port 4 ⁇ is formed in a second side of the windshield-facing- side of bottom housing subassembly 4 BHS .
  • Figure 6 illustrates three additional aspects in this regard.
  • a foam barrier 4FE (also shown in phantom in Figure 6) is preferably positioned within the interior of HUD device 2, such as with a foam material and an adhesive holding that foam material in place, so as to establish an air barrier along the sidewall as between air input port 4 An > and air output port 4 AO p, or at least some resistance to the passage of air directly between those ports.
  • housing 4 has a tapered shape from the top down perspective, that is, its width along the windshield-facing-side, and where the air ports are located, is larger than its width W 2 along the driver-facing-side.
  • either critical or more temperature-sensitive circuitry is strategically placed in the HUD device introduced at locations given the preferred embodiment air flow.
  • the system CPU is preferably located in the path of air so that is closer to air input port 4AIP than air output port 4 A OP, so that ambient air, external from housing 2 and drawn therein by fan motor 20 reaches that circuitry sooner, and in most instances at a more desirable temperature, than if it were drawn through the longer path of the interior of HUD device 2.
  • such circuitry also may be desirably located proximate corners C and C 2 , so as to avail of the greater heat transfer (removal) from the faster moving air in those locations.
  • FIGs 7a and 7b illustrate a top perspective view of a preferred embodiment mounting and electrical interfacing system 30 into which HUD device 2 is affixed, such as for implementing HUD device 2 into a vehicle atop its dashboard DSH (see, e.g., Figure 1).
  • System 30 includes a malleable mounting pad 32 that may be placed atop a vehicle dashboard DSH or other surface.
  • Pad 32 preferably includes internal structure (e.g., bendable metal plating) around which is a soft cover material, so that pad 32 can be shaped with moderate application of force so as to conform to an underlying surface.
  • pad 32 preferably has a number (e.g., three) of extending areas so as to provide adequate weight and areal coverage over the underlying surface, where such areas in the example of Figure 7a include side area 32 S1 and 32 S2 and a rearward windshield-adjacent area 32 WS H- Each such area is attached or tethered to the main potion 32MP, such as through thinner regions, reliefs, folds, or the like, so that each such area may be separately conformed to the underlying surface without applying undue twisting or the like forces on main portion 32MP; further, within each such area 32 x , the area 32 x also may include portions or reliefs, again to allow some structural insulation between the shaping of one portion relative to the other, within a given area 32 x .
  • a number e.g., three
  • Main potion 32MP also includes a nesting apparatus 34, so named as it provides a support cradle 36 and a perimeter 38, within which can be placed an electro-mechanical coupling device 40, as shown in Figure 7b.
  • nesting apparatus 34 preferably includes an interior mateable retaining member 42 and a release mechanism 44, for coupling to, and subsequently releasing, electro-mechanical coupling device 40 as further detailed below.
  • a pass-through recess 46 is formed in perimeter 38, through which a cable may pass, so as to provide electrical signals to/from HUD device 2 once it is mounted to system 30, as further detailed below.
  • an exterior mateable recess 47 along the driver- facing-side of perimeter 38 is included an exterior mateable recess 47.
  • HUD device 2 is positioned generally above system 30, so as to demonstrate the general relative positioning immediately prior to affixing HUD device 2 to system 30.
  • electro-mechanical coupling device 40 is inserted into cradle 36 and thereby surrounded by perimeter 38, where device 40 is known commercially by Navdy, Inc., as a "puck," and the puck form factor has an outer perimeter that mates with the inner wall of perimeter 38, thereby retaining the puck adjacent support cradle 36 while fitting within and abutting perimeter 38.
  • electro-mechanical coupling device 40 includes a member (not shown) that cooperates with interior mateable retaining member 42, so that later when it is desired to remove device 40 from this position, the coupling between it and interior mateable retaining member 42 is released by a user pushing on release mechanism 44 and then lifting device 40 out of system 30.
  • Extending from device 40 is a cable 48 that, in part, passes through pass-through recess 46 as device 40 is located in cradle 36, and cable 48 connects to a plug 50, which in a preferred embodiment is shaped and has the appropriate conductors/pins/receptacles for connecting to a vehicle OBD port, so that electrical signals may communicate via system 30 to HUD device 2.
  • atop device 40 are a plurality (e.g., five) of electrical conductors 52, which by way of example may comprise pads, whereby along the bottom of HUD device 2 are respective pins 4 P (e.g., pogo pins; see, e.g., Figure 8) for contacting each of the respective pads 52.
  • pins 4 P e.g., pogo pins; see, e.g., Figure 8.
  • a hook apparatus 4 H for fitting into exterior mateable recess 47.
  • the puck i.e., device 40
  • housing 4 of HUD device 2 likewise includes a magnet 4 M , where the magnets are oriented such that the respective magnets have opposing polarities when HUD device 2 is positioned above the puck.
  • the user locates HUD device 2 above the puck, engages the hook apparatus 4 H into exterior mateable recess 47, and then lowers the remainder of HUD device 2 toward system 30, whereby the opposing magnetic forces between it and the puck will bring the bottom of HUD device 2 toward the upper edge of perimeter 38 and thereby affix it in place.
  • the magnets provide a considerable retention force between system 30 and HUD device 2, and where the additional hook apparatus 4 H further prevents HUD device 2 from dislodging from nesting apparatus 34, for example in the event of a sudden stop or frontal impact of the vehicle.
  • Figure 8 illustrates a cross-sectional view of HUD device 2 and system 30 as shown in perspective views in Figure 7b.
  • the cross-sectional view therefore, depicts various attributes that have been introduced or described hereinabove, and should now be readily evident to one skilled in the art.
  • the preferred embodiments provide an improved head-up display devices for vehicles such as automobiles.
  • Preferred embodiments may include various features and benefits, as have been described, and others may be ascertained by one skilled in the art. The inventive scope, therefore, is demonstrated by the teachings herein and is further guided by the following claims.

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Instrument Panels (AREA)

Abstract

La présente invention concerne un dispositif d'affichage tête haute portable. Le dispositif comprend un boîtier avec un sous-ensemble supérieur et un sous-ensemble inférieur. Le dispositif comprend en outre un projecteur, couplé au sous-ensemble inférieur, et pour projeter des faisceaux lumineux représentatifs d'une image. Le dispositif comprend en outre un écran, couplé au sous-ensemble inférieur, et pour recevoir les faisceaux lumineux de façon à produire une représentation de l'image. Le dispositif comprend en outre un combineur, couplé de façon pivotante au boîtier, pour recevoir une réflexion de la représentation de l'image.
PCT/US2017/018893 2016-02-22 2017-02-22 Dispositif d'affichage tête haute et son procédé de construction WO2017147158A1 (fr)

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US62/298,289 2016-02-22

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Publication number Priority date Publication date Assignee Title
US5243448A (en) * 1988-09-28 1993-09-07 The Secretary Of State For Defence In Her Britannic Majesty's Government Of The United Kingdom Of Great Britain And Northern Ireland Head-up display
US20140293430A1 (en) * 2013-03-29 2014-10-02 Funai Electric Co., Ltd. Projector and head-up display device
WO2014208438A1 (fr) * 2013-06-24 2014-12-31 日本精機株式会社 Dispositif d'affichage tête haute (hud)
US20150035725A1 (en) * 2012-03-29 2015-02-05 Nippon Seiki Co., Ltd. Head-up display device
WO2015145935A1 (fr) * 2014-03-27 2015-10-01 パナソニックＩｐマネジメント株式会社 Dispositif d'affichage d'image virtuelle, système d'affichage tête haute, et véhicule
WO2015150569A1 (fr) * 2014-04-03 2015-10-08 Johnson Controls Automotive Electronics Sas Dispositif d'affichage, notamment pour vehicule automobile
WO2015190239A1 (fr) * 2014-06-12 2015-12-17 矢崎総業株式会社 Dispositif d'affichage pour véhicule
US20160025973A1 (en) * 2014-07-22 2016-01-28 Navdy, Inc. Compact Heads-Up Display System

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US5243448A (en) * 1988-09-28 1993-09-07 The Secretary Of State For Defence In Her Britannic Majesty's Government Of The United Kingdom Of Great Britain And Northern Ireland Head-up display
US20150035725A1 (en) * 2012-03-29 2015-02-05 Nippon Seiki Co., Ltd. Head-up display device
US20140293430A1 (en) * 2013-03-29 2014-10-02 Funai Electric Co., Ltd. Projector and head-up display device
WO2014208438A1 (fr) * 2013-06-24 2014-12-31 日本精機株式会社 Dispositif d'affichage tête haute (hud)
WO2015145935A1 (fr) * 2014-03-27 2015-10-01 パナソニックＩｐマネジメント株式会社 Dispositif d'affichage d'image virtuelle, système d'affichage tête haute, et véhicule
WO2015150569A1 (fr) * 2014-04-03 2015-10-08 Johnson Controls Automotive Electronics Sas Dispositif d'affichage, notamment pour vehicule automobile
WO2015190239A1 (fr) * 2014-06-12 2015-12-17 矢崎総業株式会社 Dispositif d'affichage pour véhicule
US20160025973A1 (en) * 2014-07-22 2016-01-28 Navdy, Inc. Compact Heads-Up Display System

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