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
  • G02B27/0101—Head-up displays characterised by optical 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
  • 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
  • B60K35/21—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
  • B60K35/23—Head-up displays [HUD]
  • B60K35/232—Head-up displays [HUD] controlling the projection distance of virtual images depending on the condition of the vehicle or 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
  • B60K35/60—Instruments characterised by their location or relative disposition in or on vehicles
• • 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
  • G02B27/0101—Head-up displays characterised by optical features
  • G02B2027/0118—Head-up displays characterised by optical features comprising devices for improving the contrast of the display / brillance control visibility
  • G02B2027/012—Head-up displays characterised by optical features comprising devices for improving the contrast of the display / brillance control visibility comprising devices for attenuating parasitic image effects
  • G02B2027/0121—Parasitic image effect attenuation by suitable positioning of the parasitic images
• • 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
  • G02B27/0101—Head-up displays characterised by optical features
  • G02B2027/0123—Head-up displays characterised by optical features comprising devices increasing the field of view
• • 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
  • G02B2027/0181—Adaptation to the pilot/driver

Definitions

• Display device for a motor vehicle and vehicle comprising such a device
• the present invention relates to a display device for a motor vehicle, and a motor vehicle comprising such a device.
• One of these interfaces is the display of data or information, for example the speed of the vehicle or the distance traveled, displayed until recently by traditional instruments dial and needle with respect to speed and a mechanical counter as regards the distance traveled.
• the present invention mainly relates to a device for displaying information for the driver of the motor vehicle.
• the device of the invention may also be shaped so that any other user of the motor vehicle accompanying the driver of the motor vehicle can read this information under the same conditions as those valid for the driver.
• a device an individual meeting the same criteria may be made available to the user accompanying the driver of the motor vehicle to display either the same information as for the driver, or specific information.
• design indications such as “in front”, “behind”, “up”, “down” and others refer to positions such as they appear to the driver of the motor vehicle.
• the automotive technology has taken a type of display used for some time already in aviation, namely a known display under the name head-up display.
• Head-up type displays are designed to project information into the field of view of the space in front of the motor vehicle so that the driver of the motor vehicle can read this information without taking his eyes off the space in front of the motor vehicle.
• Another advantage of this type of display is that the information can be read without changing the accommodation of the eyes of the driver of the vehicle.
• the head-up display devices are sometimes supplemented by a medium-head type display device which projects complementary information to the lower edge of the field of view of the space in front of the motor vehicle or just below this field of view. vision.
• These complementary display devices require a slight reorientation of the line of sight of the driver of the vehicle relative to the line of sight for the field of view of the space in front of the motor vehicle, but do not however require of accommodation of the eyes of the driver of the motor vehicle.
• the object of the invention must be achieved by using an independent blade, preferably with variable inclination.
• the object of the invention is achieved with a display device for a motor vehicle, comprising a light source for generating information to display and a blade reflecting the information to a driver of the vehicle.
• the blade is arranged so that the light source causes the information to appear as a virtual image in two parts), an upper part of the image appearing just above a lower limit of a field of vision on the space in front of the vehicle and a lower part of the image appearing just below the lower limit of the field of view on the space in front of the vehicle.
• the provisions of the invention it is no longer necessary to display certain security information, including for example the speed, redundantly to another place on the dashboard because the essential information appear in the field of vision then that less important information is displayed just below this field of view. Moreover, by displaying the important information in an area near the lower edge of the field of view, this information does not appear by superimposing the bottom of the space in front of the motor vehicle and thus avoid reading problems following a background very clear or bright (eg a wet road). In addition, a strong loss of light that could be caused by reflection on the blade added to a bright light of a bright or bright road requires to have an extremely strong light source, often with a brightness greater than 10,000 Cd / m2).
• the present invention also relates to the features hereafter considered in isolation or in any technically possible combination:
• the device comprises a light source in two parts, the two parts being arranged one above the other so that the upper part of the light source causes a first virtual image to appear above the lower limit of the light source. field of view and that the lower part of the light source causes a second virtual image to appear below the lower limit of the field of view;
• the device comprises an additional light source for generating additional information to be displayed, the additional light source being disposed behind the blade and transmitting the additional information through the blade directly to the driver of the vehicle;
• the additional light source is arranged in such a way that the additional information appears superimposed on the lower part of the virtual image or the second virtual image of the information to be displayed;
• the blade comprises a transparent upper zone enabling the light source to reveal the upper part of the virtual image or the first virtual image superimposed on the real view on the space in front of the vehicle; the blade comprises a partially transparent lower part allowing the light source to reveal the lower part of the virtual image or the second virtual image without superposition of the real view on the space in front of the vehicle; -
• the device comprises a cover disposed behind the blade and for preventing any light beam passing through the blade from the light source to disturb a pedestrian or a driver of another vehicle; the cache is constituted by an additional light source intended to generate additional information appearing superimposed on the lower part of the virtual image or the second virtual image of the information to be displayed; -
• the blade is an independent steerable blade to adjust the height at which the virtual image of the information appears, the size of the driver of the motor vehicle.
• the object of the present invention is also achieved with a motor vehicle comprising a display device having the characteristics set out above.
• FIG. 1 represents a diagram of the general operation of a device of the invention
• FIG. 2 diagrammatically represents a first embodiment of the device of the invention
• FIG. 3 shows an overall view of the device of the invention; invention with respect to a windshield of the motor vehicle
• FIG. 4 shows a second embodiment of the device of the invention and FIG. 5 shows a third embodiment of the device of the invention.
• the device of the invention is advantageously made in the form of an apparatus intended to be incorporated in a dashboard and comprises, as shown in FIG. 1, a totally or partially transparent blade 1 located on the dashboard of the dashboard. a motor vehicle.
• the blade 1 is advantageously curved, preferably spherically curved, so as to enlarge and to move away the virtual image resulting from the reflection of the original image emitted by a screen in two parts 3, 4, the whole being housed in a housing 2 installed permanently or removably in the dashboard of the motor vehicle.
• the display device of the invention and more particularly the blade 1, is arranged so that the light source 3, 4 makes the information appear as a virtual image in two parts, an upper part 6 and a lower part 7 , the upper part 6 of the image appearing just above a lower limit 14 of a field of view on the space in front of the vehicle and the lower part 7 of the image appearing just below the lower limit 14 the field of vision on the space in front of the vehicle.
• the limit 14 corresponds to a straight line starting from the eyes 40 of a driver of the motor vehicle and passing through the highest point of the silhouette of the hood of the motor vehicle that presents itself to the driver of the vehicle.
• the device of the invention is located behind a steering wheel 30 of the motor vehicle and emits a virtual image 6, 1 by reflection of the light source 3, 4, for example a highly bright screen, a projection tube or an illuminated object , on the curved blade 1.
• the driver 40 perceives, through the blade 1, a virtual image 6, 7 behind the windshield 8 and respectively just above or just below the cover 21.
• the upper part 3 of the light source shows the image or the information that it has generated, in the form of a virtual image 6 in the field of view of the space in front of the motor vehicle whereas the lower part 4 of the light source reveals the image that it generated, in the form of a virtual image 7 outside, but adjacent to the field of view of the space in front of the motor vehicle.
• the display device is arranged in the dashboard so that the light rays coming from the upper and lower portions 3, 4 of the light source and passing through the blade 1 do not disturb pedestrians or drivers. other vehicles outside the passenger compartment housing the display device of the invention.
• the light rays crossing the blade above the dashboard will thus be directed towards the sky.
• the device of the invention has the advantage of making it possible to display a set of information on a single transparent slide and to be able to widen the information perimeter of the display device to safety information.
• the lower part 7 of the virtual image, resulting from the image emitted by the lower part 4 of the light source is not superimposed with the space in front of the motor vehicle.
• the contrast of the lower part of the virtual image is easier to control and can be greater than the contrast obtained before the invention.
• Figures 2 and 3 respectively show separately and with respect to a location in a dashboard and with respect to a windshield 8 of a motor vehicle, the characteristics of a first embodiment of the device of the invention.
• the driver of the motor vehicle represented by his eyes 40, observes the blade 1 and sees it appear as a virtual image in two parts 6, 7 information or information emitted by the upper 3 and lower 4 parts of the light source.
• FIG. 3 shows that the image emitted by the light source 3 is reflected by the curved blade 1 towards the driver 40 which therefore has in front of it at the same time and without changing the target, the image of the space in front of the motor vehicle, which presents itself to him through the windshield, and the image emitted by the light source 3 and reflected by the curved blade 1.
• This basic arrangement makes it possible to produce two variants of the device of the display, the first being that the upper part 3 and the lower part 4 of the light source function individually and at least partially independently of one another and that in this way, the upper part 3 of the luminous letters makes appear a first virtual image 6 above the lower limit 14 of the field of view and that the lower part 4 of the light source makes appear a second virtual image 7 below the lower limit 14 of the field of vision.
• the device comprises an additional light source 5 intended to generate additional information to be displayed.
• the additional light source 5 is disposed behind the blade 1 and transmits the additional information (for example a vehicle fault alert) through the blade 1 directly to the driver of the vehicle.
• the additional light source 5 is arranged in such a way that the additional information appears superimposed on the lower part 7 of the virtual image or the virtual second 7 of the information to be displayed generated by the main light source 3, 4.
• Figure 4 shows a second embodiment of the display device of the invention.
• This second embodiment corresponds to the first in that it comprises a blade 1, a housing and a light source generating the information to be displayed.
• the light source has an upper part 3 and a lower part 4, and the device is arranged so that the images produced by the upper and lower parts 3, 4 of the light source appear to a driver 40 of a motor vehicle as virtual images 6, 1.
• the second embodiment differs from the first embodiment in that the blade 1 comprises a transparent upper zone 11 allowing the upper light source 3 to reveal the upper part 6 of the virtual image or the first virtual image 6 superimposed on the real view of the space in front of the motor vehicle.
• the blade 1 also comprises a partially transparent lower portion 12 allowing the lower light source 4 to reveal a lower portion 7 of the virtual image or the second virtual image 7 without superposition of the real view on the space in front of the motor vehicle .
• the housing referenced here 23 has a simplified shape compared to that of the housing 2 of the first embodiment. Indeed, according to this second embodiment, the housing 23 does not go up behind the blade 1.
• Figure 5 shows a third embodiment of the display device of the invention.
• the device comprises, as the first embodiment, a blade 1, a housing 2, a light source in two parts with an upper portion 3 and a lower portion 4 intended to reveal, using the blade 1, a higher virtual image 6 and a lower virtual image 7 appearing to an observer 40 such as the driver of the vehicle.
• the device further comprises an additional light source 10 for generating a complementary display crossing the blade 1 and superimposed on the lower virtual image 7.
• the light source 5 of the alternative embodiment of the first embodiment as well as the additional light source 10 of the third embodiment can be used to superimpose on the lower virtual image 7 of the vehicle fault alerts.

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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)

Applications Claiming Priority (2)

Publications (1)

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ID=36933449

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Country Status (3)

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Family Cites Families (5)

• 2005
  • 2005-11-18 FR FR0511715A patent/FR2893552B1/fr not_active Expired - Fee Related
• 2006
  • 2006-11-15 EP EP06831338A patent/EP1948464A1/de not_active Ceased
  • 2006-11-15 WO PCT/FR2006/051176 patent/WO2007057607A1/fr active Application Filing

Non-Patent Citations (1)

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