WO2011111990A2 - Dispositif d'affichage tête haute pour véhicule utilisant des lentilles multiples - Google Patents

Dispositif d'affichage tête haute pour véhicule utilisant des lentilles multiples Download PDF

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Publication number
WO2011111990A2
WO2011111990A2 PCT/KR2011/001610 KR2011001610W WO2011111990A2 WO 2011111990 A2 WO2011111990 A2 WO 2011111990A2 KR 2011001610 W KR2011001610 W KR 2011001610W WO 2011111990 A2 WO2011111990 A2 WO 2011111990A2
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WO
WIPO (PCT)
Prior art keywords
lens
curvature
radius
driving information
information image
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.)
Ceased
Application number
PCT/KR2011/001610
Other languages
English (en)
Korean (ko)
Other versions
WO2011111990A3 (fr
Inventor
임혁규
최석재
강원의
문병섭
박범진
허진녕
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.)
V and I Co Ltd
Korea Institute of Civil Engineering and Building Technology KICT
Original Assignee
V and I Co Ltd
Korea Institute of Construction Technology
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
Priority claimed from KR1020100021312A external-priority patent/KR101137775B1/ko
Priority claimed from KR1020100056878A external-priority patent/KR101182154B1/ko
Application filed by V and I Co Ltd, Korea Institute of Construction Technology filed Critical V and I Co Ltd
Priority to CN201180012734.6A priority Critical patent/CN102791510B/zh
Publication of WO2011111990A2 publication Critical patent/WO2011111990A2/fr
Publication of WO2011111990A3 publication Critical patent/WO2011111990A3/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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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
    • 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
    • B60K35/213—Virtual instruments
    • 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
    • B60K35/215—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 characterised by the combination of multiple visual outputs, e.g. combined instruments with analogue meters and additional displays
    • 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]
    • 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
    • B60K35/29—Instruments characterised by the way in which information is handled, e.g. showing information on plural displays or prioritising information according to driving conditions
    • 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
    • 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
    • B60K2360/77—Instrument locations other than the dashboard
    • B60K2360/785—Instrument locations other than the dashboard on or in relation to the windshield or windows
    • 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
    • B60K35/10—Input arrangements, i.e. from user to vehicle, associated with vehicle functions or specially adapted therefor

Definitions

  • the present invention relates to a vehicle head apparatus using multiple lenses, and more particularly, by improving the optical structure of the lens and the arrangement of the reflecting mirrors, it is possible to improve the clarity and identification of the driving information image projected on the windshield of the vehicle.
  • the present invention relates to a vehicle head apparatus using multiple lenses.
  • HUD head up display
  • the head device is a device for displaying various driving information, for example, the speed, engine RPM, temperature, fuel amount, etc. of the vehicle on the windshield of the vehicle to be watched by the driver, and the LCD system is mainly used as a display device.
  • an LCD vehicle head apparatus includes a liquid crystal panel 10 and a backlight unit 12 disposed behind the liquid crystal panel 10.
  • the liquid crystal panel 10 is installed inside an instrument panel 10a in front of the driver's seat, and displays an input driving information image.
  • the liquid crystal panel 10 displays the driving information of the vehicle, that is, the speed, engine RPM, temperature, fuel amount, etc. of the vehicle by digital graphs, numbers, letters, or the like.
  • the liquid crystal panel 10 may include a liquid crystal display (LCD) for transmitting an electrical signal to visual information by using a change in transmittance of liquid crystal according to an applied voltage, and a liquid crystal on silicon (LCOS) using a reflective liquid crystal panel.
  • LCD liquid crystal display
  • LCOS liquid crystal on silicon
  • DDM Digital Micro-mirror Display
  • TFT Thin Film Transistor
  • electroluminescence It can be configured as any one of the organic electroluminescence display (OLED), which is an organic EL display that emits light by using a phenomenon, but is not limited thereto.
  • the rear of the liquid crystal panel 10 is provided with a backlight unit 12 for providing a light source.
  • Ultra high pressure (UHP) lamps, LEDs, or lasers may be used as the backlight unit 12, but is not limited thereto.
  • the vehicle head apparatus of the LCD system includes an optical system 14 installed in front of the liquid crystal panel 10.
  • the optical system 14 includes a lens 16 provided in front of the liquid crystal panel 10 and a reflector 18 provided at a predetermined angle in front of the lens 16.
  • the lens 16 enlarges or reduces the driving information image displayed on the liquid crystal panel 10 to an appropriate size and adjusts a focus.
  • the reflection mirror 18 reflects the driving information image emitted from the lens 16 to the windshield 19 of the vehicle. Accordingly, the driving information image can be displayed on the windshield 19 of the vehicle.
  • the driver can check the driving information of the vehicle without directly looking at the instrument panel installed in the instrument panel 10.
  • the conventional vehicle head device has a problem in that the image is not clear and distorted, and in particular, the clarity and the identification are inferior due to the light flowing from the outside.
  • the present invention has been made to solve the above-mentioned conventional problems, the object of which is to configure the optical system to display the driving information image displayed on the windshield of the vehicle clearly without distortion, the visibility of the driving information image And to provide a vehicle head device that can improve the clarity and identification.
  • Another object of the present invention is to provide a vehicle head apparatus capable of maintaining a clear image even when the driving information image displayed on the windshield of the vehicle is affected by external light.
  • Still another object of the present invention is to provide a vehicle head device which enables a driver to recognize a driving information image easily and quickly by improving visibility, clarity and identification of the driving information image displayed on the windshield of the vehicle.
  • a vehicle head apparatus of the present invention includes a liquid crystal panel for displaying driving information, a backlight unit for providing a light source behind the liquid crystal panel, and a path for specifying a driving information image displayed on the liquid crystal panel.
  • the vehicle head device comprising a plurality of reflecting mirrors to sequentially reflect and a lens for enlarging or reducing the driving information image reflected through the reflecting mirrors to adjust the focus to reflect to the windshield, the lens, At least one meniscus lens that is sequentially arranged along the same optical axis as the optical axis of the disposed reflector, wherein each of the lenses is arranged to be convex downward toward the incident side of the travel information image.
  • the lens comprises a first lens and a second lens sequentially arranged along the optical axis of the reflector disposed below, the first lens has a larger radius of curvature of the exit surface than the radius of curvature of the incident surface It is a positive meniscus lens (Positive Meniscus Lens), the second lens is characterized in that the negative meniscus lens (Negative Meniscus Lens) is smaller than the radius of curvature of the incident surface.
  • the first lens has a thickness of 18 to 20, a refractive index of 1.60 to 1.64, an Abbe number of 35 to 37, a radius of curvature of the incident surface of -133 to -139, and a radius of curvature of the exit surface of -304 to -309. It is characterized by that.
  • the second lens has a thickness of 5 to 7, a refractive index of 1.7 to 1.9, an Abbe number of 24 to 26, a radius of curvature of the incident surface of -170 to -174, and a radius of curvature of the exit surface of -100 to -104. It is characterized by that.
  • the second lens is characterized in that its incidence surface is arranged at intervals in the range of 23 to 27 mm from the exit surface of the first lens.
  • the vehicle head apparatus using the multiple lens according to the present invention by improving the optical properties of the lens and the array structure of the reflecting mirror, the effect of correcting the distortion phenomenon of the driving information image projected on the windshield of the vehicle to the optimum state There is.
  • the driving information image projected on the windshield of the vehicle may have an optimal size and focus.
  • the driving information image projected on the windshield of the vehicle has an optimal size and focus without distortion, the visibility, clarity and identification of the driving information image projected on the windshield can be improved. Accordingly, the driving information image displayed on the windshield of the vehicle can be easily and quickly recognized by the driver.
  • FIG. 1 is a side view schematically showing the configuration of a conventional vehicle head device
  • FIG. 2 is a perspective view showing an optical system of a vehicle head apparatus according to a first embodiment of the present invention
  • Figure 3 (a) is a plan view schematically showing a state in which a vehicle head apparatus according to a first embodiment of the present invention is installed in a vehicle
  • Figure 3 (b) is a side view
  • FIG. 4 is a cross-sectional view taken along line IV-IV of FIG. 3 (a) showing a state in which a vehicle head apparatus according to a first embodiment of the present invention is installed in a vehicle;
  • FIG. 5A is an enlarged cross-sectional view of a second lens according to a first embodiment of the present invention
  • FIG. 5B is an enlarged cross-sectional view of a first lens according to a first embodiment of the present invention
  • FIG. 6 is a view showing a vehicle head apparatus according to a second embodiment of the present invention.
  • FIG. 7 is a view showing a vehicle head apparatus according to a third embodiment of the present invention.
  • FIG. 8 is a perspective view showing a vehicle head apparatus according to a fourth embodiment of the present invention.
  • FIG. 9 is a plan view showing a vehicle head apparatus according to a fourth embodiment of the present invention.
  • FIG. 10 is a view showing a state in which the vehicle head apparatus according to a fourth embodiment of the present invention is installed in a vehicle.
  • a general vehicle head apparatus includes a liquid crystal panel 10 and a backlight unit 12 provided at a rear side of the liquid crystal panel 10.
  • the liquid crystal panel 10 is installed inside the instrument panel 10a in front of the driver's seat, and displays an input driving information image.
  • the backlight unit 12 illuminates the rear surface of the liquid crystal panel 10 to provide a light source.
  • the vehicle head apparatus includes an optical system 14 provided in front of the liquid crystal panel 10.
  • the optical system 14 includes a lens 16 and a reflector 18 to enlarge or reduce the driving information image of the liquid crystal panel 10 to an appropriate size, adjust focus, and adjust the adjusted driving information image to the front of the vehicle. Reflected by glass 19.
  • the vehicle head apparatus includes an optical system 20.
  • the optical system 20 includes at least one reflector 30 and a lens 40 that sequentially reflect driving information images of the liquid crystal panel 10 along a specific path.
  • the reflecting mirrors 30 may include a first reflecting mirror 32 arranged to be inclined in front of the liquid crystal panel 10, a second reflecting mirror 34 arranged to be inclined to correspond to the first reflecting mirror 32, and a second reflecting mirror ( 34) and a third reflecting mirror 36 arranged inclined.
  • the first reflecting mirror 32 is arranged to be inclined at the side so as to have an angle in the range of 40 ° to 50 ° with respect to the liquid crystal panel 10.
  • the first reflecting mirror 32 arranged as described above reflects the travel information image displayed on the liquid crystal panel 10 toward the second reflecting mirror 34 at an angle in a range of 85 ° to 95 °.
  • the second reflecting mirror 34 is arranged to have an angle in the range of 85 ° to 95 ° with respect to the first reflecting mirror 32 so as to correspond to the first reflecting mirror 32.
  • the second reflecting mirror 34 thus arranged reflects the traveling information image reflected by the first reflecting mirror 32 toward the third reflecting mirror 36 at an angle ranging from 85 ° to 95 °.
  • the third reflecting mirror 36 is arranged in the lateral direction and the upper surface direction of the second reflecting mirror 34.
  • the third reflecting mirror 36 is arranged laterally at an angle in the range of 40 ° to 50 ° with respect to the second reflecting mirror 34 and at an angle in the range of 40 ° to 50 ° with respect to the second reflecting mirror 34.
  • the furnace is arranged in an upward direction.
  • the third reflecting mirror 36 thus arranged reflects the travel information image reflected by the second reflecting mirror 34 toward the lens 40 arranged in the upward direction.
  • the first reflecting mirror 32, the second reflecting mirror 34, and the third reflecting mirror 36 may have a completely flat surface, and may have a concave curvature or a convex curvature in some cases.
  • the reflecting surfaces of the reflecting mirrors 32, 34, and 36 are selected and used in order to correct image distortion caused by the projection angle, the projection distance, etc. with respect to the windshield 19 of the vehicle.
  • the vehicle head apparatus may include a lens configured to adjust the driving information image reflected through the first to third reflectors 32, 34, and 36. 40).
  • the lenses 40 include a first lens 42 and a second lens 44 which are sequentially arranged along the optical axis of the lower third reflecting mirror 36.
  • the first lens 42 has a radius of curvature R2 of the exit surface 42b that is larger than the radius of curvature R1 of the incident surface 42a. It is composed of a positive meniscus lens and arranged so as to be convex toward the direction in which the driving information image is incident.
  • the first lens 42 has a thickness t of 18 to 20, a refractive index of Nd of 1.60 to 1.64, and an Abbe number. It is preferable that (Vd) is 35-37, the curvature radius R1 of the incident surface 42a is -133--139, and the curvature radius R2 of the exit surface 42b is -304-309.
  • the second lens 44 has a smaller radius of curvature R2 of the exit surface 44b than a radius of curvature R1 of the incident surface 44a. It is composed of a negative meniscus lens (negative meniscus lens), and as the first lens 42 is arranged to be convex toward the direction in which the driving information image is incident.
  • the second lens 44 is preferably arranged such that the distance d1 between the incident surface 44a and the exit surface 42b of the first lens 42 is in the range of 23 to 27 mm.
  • the identification and clarity of the image projected on the windshield of the vehicle can be significantly improved.
  • the second lens 44 has a thickness t of 5 to 7, a refractive index Nd of 1.7 to 1.9, and an Abbe number Vd. It is preferable that the curvature radius R1 of 24 to 26 and the incident surface 44a is -170 to -174, and the curvature radius R2 of the emission surface 44b is in the range of -100 to -104.
  • the first lens 42 and the second lens 44 having such a configuration enlarge or reduce the driving information image reflected through the first to third reflectors 32, 34, and 36 to an appropriate size and adjust the focus. Play a role.
  • the first lens 42 and the second lens 44 properly correct spherical aberration, astigmatism, and the like of the distorted driving information image while passing through the first to third reflecting mirrors 32, 34, and 36. Do it. This allows the driving information image projected on the windshield 19 of the vehicle to have an optimal size and focus.
  • the driving information image displayed on the windshield 19 of the vehicle can be displayed clearly without distortion, thereby improving the visibility, clarity and identification of the driving information image. Accordingly, the driver may easily and quickly recognize the driving information image displayed on the windshield 19 of the vehicle.
  • the third lens 46 is further arranged on the second lens 44 in the first embodiment.
  • the third lens 46 is composed of a positive meniscus lens having a larger radius of curvature of the exit surface 46b than a radius of curvature of the incident surface 46a, and determines a direction in which the driving information image is incident. Are convex toward.
  • the third lens 46 is arranged to form the same optical axis as the first lens 42 and the second lens 44, and the incident surface 46a and the exit surface 44b of the second lens 44 It is preferable to make the space
  • the third lens 46 may have a thickness t, a refractive index Nd, an Abbe number Vd, and a radius of curvature of the incident surface 46a and the exit surface 46b to be the same as the first lens 42. It is preferred to be configured.
  • the third lens 46 has a thickness t of 18 to 20, a refractive index Nd of 1.60 to 1.64, an Abbe number Vd of 35 to 37, and a radius of curvature of the incident surface 46a. It is preferable that the curvature radius of the -133 to -139 and the emission surface 46b is in the range of -304 to -309.
  • the third lens 46 serves to correct spherical aberration, astigmatism, and the like of the driving information image passing through the second lens 44. Accordingly, the sharpness of the driving information image projected on the windshield 19 of the vehicle is increased.
  • the pretreatment lens 48 is further arranged below the first lens 42 in the second embodiment.
  • the third lens 46 is arranged on the upper part of the second lens 44 and the pretreatment lens 48 is disposed on the lower part of the first lens 42. It is arranged more.
  • the preprocessing lens 48 is composed of a negative meniscus lens having a smaller radius of curvature of the exit surface 48b than a radius of curvature of the incident surface 48a, and is directed toward a direction in which the driving information image is incident. Arranged to be convex.
  • the preprocessing lens 48 is arranged to form the same optical axis as the first lens 42 and the second lens 44, and the gap between the exit surface 48a and the incident surface 42a of the first lens 42 is formed. (d3) is preferably in the range of 4 to 7 mm.
  • the pretreatment lens 48 is configured such that the thickness t, the refractive index Nd, the Abbe number Vd, and the radius of curvature of the incident surface 48a and the exit surface 48b are the same as those of the second lens 44. It is preferable to be.
  • the pretreatment lens 48 has a thickness t of 5 to 7, a refractive index Nd of 1.7 to 1.9, an Abbe number Vd of 24 to 26, and a radius of curvature of the incident surface 48a. It is preferable that the radius of curvature of the emission surface 48b is in the range of -100 to -104.
  • the preprocessing lens 48 corrects spherical aberration, astigmatism, and the like of the travel information image before being incident on the first lens 42. Accordingly, the sharpness of the driving information image projected on the windshield 19 of the vehicle is increased.
  • the vehicle head apparatus includes a liquid crystal panel 110 displaying driving information and a backlight unit 115 providing a light source behind the liquid crystal panel 110.
  • a first pretreatment reflector 120a provided in front of the liquid crystal panel 110 to reflect the driving information image
  • a second pretreatment reflector 120b provided on the side of the first pretreatment reflector 120a
  • the second A plurality of lenses 130 are sequentially provided along the same optical axis as the pretreatment reflector 120b to adjust the focus by enlarging or reducing the driving information image, and are provided at the rear of the lens 130 to be adjusted by the lens 130.
  • a first post-processing reflector 140a for reflecting the completed travel information image
  • a second post-processing reflector 140b for reflecting the travel information image reflected by the first post-processing reflector 140a onto the windshield 150 of the vehicle.
  • the first pretreatment reflector 120a is arranged to be inclined at 40 ° to 50 ° with respect to the liquid crystal panel 110 to reflect the travel information image toward the second pretreatment reflector 120b at an angle in a range of 85 ° to 95 °. Let's do it.
  • the second pretreatment reflector 120b is arranged to be inclined in a range of 85 ° to 95 ° with respect to the first pretreatment reflector 120a to reflect the travel information image reflected by the first pretreatment reflector 120a. Reflect toward.
  • the first pretreatment reflector 120a and the second pretreatment reflector 120b are arranged in a fan shape to correspond to each other in the horizontal direction.
  • the lens 130 includes a first lens 130a and a second lens 130b that are sequentially provided along the same optical axis as the second pretreatment reflector 120b and reflected by the second pretreatment reflector 120b. Adjust the focus by enlarging or reducing the sized driving information image to an appropriate size.
  • the first lens 130a is composed of a positive meniscus lens having a larger radius of curvature of the exit surface than the radius of curvature of the incident surface, and the second lens 130b is larger than the radius of curvature of the incident surface. It is preferable that the curvature radius of the surface is composed of a small negative meniscus lens.
  • the second lens 130b is arranged such that its incidence surface has a distance in the range of 23 to 27mm from the emission surface of the first lens 130a.
  • the first post-treatment reflector 140a is inclined at an angle in the range of 85 ° to 95 ° with respect to the lens 130 so that the second post-treatment reflector 140b at an angle in the range of 85 ° to 95 °. Reflect toward.
  • the second post-treatment reflector 140b is provided on the first post-treatment reflector 140a to reflect the driving information image reflected by the first post-treatment reflector 140a to the windshield 150 of the vehicle. Let's do it.
  • the second post-treatment reflector 140b is arranged to be inclined at an angle in a range of 85 ° to 95 ° with respect to the first post-treatment reflector 140a to display the driving information image at an angle in a range of 85 ° to 95 °. B).
  • first post-treatment reflector 140a and the second post-treatment reflector 140b are disposed in a fan shape to correspond to each other in the vertical direction.
  • first and second post-treatment reflectors 140a and 140b may be formed in any one of planar, convex, or concave shapes, similar to the first and second pretreatment reflectors 120a and 120b.
  • the effective distance and the focal length of the image can be increased by arranging the reflectors to reflect the driving information image four times.
  • the driving information image displayed on the windshield 150 of the vehicle may be maintained at a deep depth to improve visibility, clarity, and identification of the driving information image.
  • the driving information image displayed on the windshield 150 may be corrected without distortion, so that the driver may easily and quickly recognize the driving information image.

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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)
  • Liquid Crystal (AREA)

Abstract

L'invention porte sur un dispositif d'affichage tête haute pour véhicule utilisant des lentilles multiples, dans lequel les propriétés optiques des lentilles et l'arrangement des réflecteurs sont améliorés pour obtenir une meilleure netteté et une meilleure visibilité des images d'informations sur le parcours qui sont projetées sur le pare-brise d'un véhicule. Le dispositif d'affichage tête haute pour véhicule utilisant des lentilles multiples comprend : un panneau à cristaux liquides servant à afficher des informations sur le parcours ; une unité de rétroéclairage disposée derrière le panneau à cristaux liquides pour fournir de la lumière ; une pluralité de réflecteurs destinés à réfléchir, séquentiellement et selon un trajet spécifique, des images d'informations sur le parcours affichées sur le panneau à cristaux liquides ; et des lentilles servant à agrandir ou à réduire les images d'informations sur le parcours qui sont réfléchies par les réflecteurs, à focaliser les images et à réfléchir les images sur le pare-brise, les lentilles étant une ou plusieurs lentilles ménisques qui sont arrangées séquentiellement le long de l'axe optique, qui est le même que l'axe optique du réflecteur disposé au-dessous des lentilles, et qui font saillie de façon convexe dans la direction dans laquelle les images d'informations sur le parcours sont appliquées.
PCT/KR2011/001610 2010-03-10 2011-03-09 Dispositif d'affichage tête haute pour véhicule utilisant des lentilles multiples Ceased WO2011111990A2 (fr)

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