WO2018062216A1 - Appareil d'affichage à tête haute pour véhicule - Google Patents

Appareil d'affichage à tête haute pour véhicule Download PDF

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Publication number
WO2018062216A1
WO2018062216A1 PCT/JP2017/034827 JP2017034827W WO2018062216A1 WO 2018062216 A1 WO2018062216 A1 WO 2018062216A1 JP 2017034827 W JP2017034827 W JP 2017034827W WO 2018062216 A1 WO2018062216 A1 WO 2018062216A1
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WO
WIPO (PCT)
Prior art keywords
display
mirror
vehicle
mirror part
holder
Prior art date
Application number
PCT/JP2017/034827
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English (en)
Japanese (ja)
Inventor
佐藤　真
Original Assignee
株式会社デンソー
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Filing date
Publication date
Application filed by 株式会社デンソー filed Critical 株式会社デンソー
Publication of WO2018062216A1 publication Critical patent/WO2018062216A1/fr

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    • 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
    • B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
    • B60R11/00—Arrangements for holding or mounting articles, not otherwise provided for
    • B60R11/02—Arrangements for holding or mounting articles, not otherwise provided for for radio sets, television sets, telephones, or the like; Arrangement of controls thereof
    • 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

Definitions

  • the present disclosure relates to a vehicle head-up display device that is mounted on a vehicle and reflects an image from a display device with a reflection device and irradiates a front windshield, for example, to a user.
  • Patent Document 1 As a conventional head-up display device, for example, the one described in Patent Document 1 is known.
  • a display display unit
  • a reflection device reflection unit
  • a housing having an emission part that opens toward a windshield of a vehicle.
  • the display light emitted from the display device is reflected by the reflection device, passes through the emission part, is irradiated on the windshield, and is displayed to the user.
  • the reflection device is formed by joining a mirror part (reflection member) formed as a concave mirror to a holder member. And the axial part is provided in the both ends of the longitudinal direction of a holder member, and each axial part is supported by the supporting member fixed to the housing. The reflecting portion is rotated by an actuator so that the irradiation position of the display light with respect to the windshield is adjusted.
  • the reflection device vibrates and the display on the windshield blurs (enlarges or shrinks). .
  • An object of the present disclosure is to provide a vehicle head-up display device that can suppress display blur due to vibration in view of the above problems.
  • This disclosure employs the following technical means in order to achieve the above object.
  • a display device that is mounted on a vehicle and emits display light representing display information, a mirror unit, and a holder unit that holds the mirror unit, the display light emitted from the display unit is displayed.
  • a reflecting device that reflects the projection information provided on the vehicle to the projection member provided on the vehicle by the mirror unit.
  • the mirror unit has a rectangular front shape.
  • the holder part is arranged on the back side of the mirror part, and has an outer peripheral part that reaches the periphery of the mirror part, and at least one side of the outer peripheral part, On the side where the display light is reflected, a reinforcing portion is provided which is integrally provided in a recessed area accompanying the recess of the concave mirror and reinforces the holder portion.
  • the reinforcing portion integrally on the outer peripheral portion of the holder portion, it is possible to increase the rigidity of the holder portion and to suppress display blur due to vibration during vehicle travel.
  • FIG.2 (a) is a top view which shows a reflective apparatus
  • FIG.2 (b) is a front view which shows a reflective apparatus
  • FIG. 3 is a cross-sectional view showing a III-III portion in FIG. 2. It is sectional drawing which shows the reinforcement part in the modification 1.
  • FIG. 5A is a cross-sectional view showing the arc-shaped reinforcing portion in the second modification
  • FIG. 5A is a cross-sectional view showing the arc-shaped reinforcing portion in the second modification
  • FIG. 5B is a cross-sectional view showing the linear reinforcing portion in the second modification.
  • FIG. 6A is a cross-sectional view showing the reinforcing part in the third modification, and
  • FIG. 6B is a cross-sectional view showing the reinforcing part in the third modification.
  • a vehicle head-up display device 100 according to a first embodiment will be described with reference to FIGS.
  • a vehicle head-up display (Head-Up Display) device 100 is mounted on a vehicle such as an automobile, for example, and displays light representing display information emitted from a liquid crystal display 120. It is made to enter into the projection position 20a of the windshield 20 provided in the vehicle.
  • the vehicle head-up display device 100 forms a display image 30 of the display information on the vehicle front extension line of the line connecting the driver and the projection position 20a (in front of the windshield 20). Is made to be visible to the driver as a virtual image.
  • the vehicle head-up display device 100 allows the driver to visually recognize the display image 30 and the foreground of the vehicle in a superimposed manner.
  • the vehicle head-up display device 100 is referred to as a HUD device 100.
  • the windshield 20 corresponds to the projection member of the present disclosure.
  • the windshield 20 is a windshield on the front side of the vehicle.
  • a laminated glass formed of two sheets of glass and an intermediate film provided therebetween is used.
  • the windshield 20 has a slight curvature in the horizontal direction when viewed from above the vehicle and in the direction along the line of the windshield 20 when viewed from the side of the vehicle.
  • the image 30 can be enlarged and displayed further away.
  • the HUD device 100 includes a backlight 110, a liquid crystal display 120, a reflection device 130, a position adjustment switch 140, a control device 150, and the like.
  • the backlight 110, the liquid crystal display 120, the reflection device 130, and the control device 150 which are main components of the HUD device 100, are located inside the instrument panel 10 that extends from the lower end surface of the windshield 20 to the rear of the vehicle interior and further downward. It is arranged. Further, the position adjustment switch 140 is provided at a position where the driver can easily operate, for example, on the surface of the instrument panel 10 facing the driver.
  • an opening 10a for allowing display light from the reflection device 130 to pass through is provided on the upper surface of the instrument panel 10, and a light-proof dust-proof cover is provided in the opening 10a.
  • a light-proof dust-proof cover is provided in the opening 10a.
  • the backlight 110 is a light-emitting element that emits light to the liquid crystal display 120 when energized.
  • the backlight 110 emits light along the optical axis with respect to the liquid crystal display 120.
  • the liquid crystal display 120 is a display that emits display light representing display information, and is driven and controlled by a drive circuit of the control device 150.
  • a dual scan type display D-STN
  • a TN (Twisted Nematic) segment liquid crystal, or the like is used. Is done.
  • the liquid crystal display 120 emits display light representing display information toward the reflection device 130 on the side opposite to the backlight 110 by the light emitted from the backlight 110.
  • the surface of the liquid crystal display 120 that emits the display light is, for example, oriented in the vertical direction, and is arranged so that the optical axis of the display light faces the front-rear direction of the vehicle (the emission direction faces the front side of the vehicle). Has been.
  • the display information formed by the liquid crystal display 120 can be, for example, map information in a vehicle navigation system, current vehicle position information on a map, or guidance information for a destination.
  • the display information may be information such as vehicle speed, engine speed, engine coolant temperature, and battery voltage as vehicle information during vehicle travel.
  • the liquid crystal display 120 can be formed on the surface of the liquid crystal display 120 by one or a combination of a plurality of types of display information as described above.
  • the driver can select which display information to use by using a display changeover switch.
  • the reflection device 130 is a device that reflects display light, and includes a mirror part 131, a holder part 132, a reinforcing part 133, a motor part 134, and the like, as shown in FIGS.
  • the mirror part 131 is a member that reflects display light from the liquid crystal display 120 to the projection position 20 a of the windshield 20 through the opening 10 a of the instrument panel 10.
  • the mirror part 131 is formed, for example, by depositing a metal such as aluminum or silver on a transparent glass plate material, and a surface facing the liquid crystal display 120 serves as a reflective surface 131a.
  • the mirror part 131 has a rectangular shape (rectangular shape) whose front shape is elongated in the left-right direction, and is a concave mirror that is recessed on the back side (the side opposite to the reflecting surface 131a). ing.
  • the mirror unit 131 can expand the display information toward the projection position 20a.
  • the holder part 132 is a member that holds the mirror part 131, and is formed of, for example, a resin material.
  • the holder part 132 covers the back side of the mirror part 131 and reaches around the four sides of the mirror part 131 formed in a rectangular shape.
  • the mirror part 131 is joined to the holder part 132.
  • surroundings (4 sides of outer periphery) of the mirror part 131 of the holder part 132 is the outer peripheral part 132a.
  • the holder portion 132 is integrally formed with shaft portions 132 b and 132 c along a virtual center line L (FIG. 3) extending in the longitudinal direction of the mirror portion 131.
  • the shaft portions 132b and 132c are rotatably supported by a support body (not shown).
  • the reinforcing part 133 is a part that reinforces the holder part 132.
  • the reinforcing portion 133 is formed in a concave region associated with the concave portion of the concave mirror on the side where the display light is reflected on at least one side of the outer peripheral portion 132a (four sides) of the holder portion 132.
  • the reinforcement part 133 is formed in the outer peripheral part 132a (4 sides) in the position corresponding to the two upper and lower sides of the rectangular mirror part 131.
  • the concave area accompanying the concave of the concave mirror means an area surrounded by an arc line formed by the depression and an imaginary straight line connecting both ends of the arc line on the upper and lower sides of the mirror part 131.
  • the reinforcing portion 133 is a plate-like rib extending from the outer peripheral portion 132a to the display light reflecting side in the concave region.
  • the line on the tip side extended to the reflection side of the reinforcing part 133 has an arc shape that is looser than the arc line of the mirror part 131, and the overall shape of the reinforcing part 133 is crescent as shown in FIG. It has a shape.
  • the motor part 134 is, for example, a synchronous motor that operates in synchronization with the input pulse power, and is connected to the shaft part 132 b of the holder part 132.
  • the rotation of the motor unit 134 is controlled by a control device 150 described later.
  • the position adjustment switch 140 is an input unit that generates a request signal for adjusting the position of the display image 30 on the windshield 20 to the upper side or the lower side according to the driver's preference by an input operation by the driver. It has become.
  • the position adjustment switch 140 has, for example, a rectangular switch surface facing the driver, and a request signal for changing the position of the display image 30 to the upper side is generated by pressing the upper side of the switch surface. Further, by pushing the lower side of the switch surface, a request signal for changing the position of the display image 30 to the lower side is generated. Then, the generated request signal is output to the control device 150.
  • the control device 150 controls the formation of display information on the liquid crystal display 120 and is a control means for controlling the operation of the motor unit 134 in response to a request signal from the position adjustment switch 140 or an on / off signal of an ignition switch.
  • the HUD device 100 is configured as described above, and the operation of the HUD device 100 by the control device 150 will be described below.
  • control device 150 When the ignition switch is turned off, the control device 150 operates the motor unit 134 to change the rotation position of the mirror unit 131 to a preset reset position.
  • the control device 150 operates the motor unit 134 so that the rotation position of the mirror unit 131 is set by the driver during the previous driving from the reset position. Return to the driver setting position. And the control apparatus 150 determines the display information which should be displayed based on the driver
  • the liquid crystal display 120 causes the mirror 131 to emit display information as display light by the light emitted from the backlight 110.
  • the mirror part 131 reflects the display light emitted from the liquid crystal display 120 to the projection position 20a of the windshield 20 through the opening 10a (dust-proof cover).
  • the display light (display information) reflected at the projection position 20a is displayed (imaging) as a display image 30 (virtual image) on the vehicle front extension line (in front of the windshield 20) of the line connecting the driver and the projection position 20a. And will be visually recognized by the driver.
  • the control device 150 When the position adjustment switch 140 is operated by the driver and a request signal for changing the position of the display image 30 is generated, the control device 150 operates the motor unit 134 to request the mirror unit 131. Rotate in the direction and adjust to the new driver setting position.
  • the reflection device 130 vibrates and the display on the windshield 20 blurs (enlarges or shrinks) because it receives vibration during vehicle travel. there were.
  • the rigidity of the holder portion 132 can be increased, and display blur due to vibration during vehicle travel can be suppressed.
  • the concave part by the concave mirror can be utilized to form the reinforcing part 133 without using an extra space, so that the reflector 130 is not increased in size.
  • the reinforcing portion 133 is a crescent-shaped rib, and the shape of the outer peripheral portion 132a associated with the concave mirror can be effectively used to form an effective reinforcing portion 133 without waste.
  • the reinforcing part 133 is formed on the upper and lower sides of the outer peripheral part 132a, so that the effective reinforcing part 133 with respect to the holder part 132 can be obtained. it can.
  • FIGS. 2nd Embodiment A second embodiment is shown in FIGS. 2nd Embodiment changes the shape of the reinforcement part 133 variously with respect to the said 1st Embodiment.
  • the reinforcing portion 133a shown in FIG. 4 is such that the tip-side line extending to the reflection side is changed from a circular arc shape to a linear shape so as to have a maximum size in the concave region.
  • Reinforcing portions 133b and 133c shown in FIG. 5 are rod-shaped connecting both ends of the arc line formed by the recesses.
  • the reinforcing portion 133b is formed in an arc shape, and the reinforcing portion 133c is formed in a linear shape.
  • the same effects as those of the first embodiment can be obtained. Further, in the reinforcing portions 133b, 133c, 133d, and 133e, it is possible to further reduce the weight and reduce the material cost as compared with the first embodiment.
  • the mirror part 131 is described as being formed from a glass plate material and bonded to the holder part 132.
  • a mirror-integrated reflection device in which, for example, aluminum or the like is deposited on the surface of the resin holder portion 132 on the liquid crystal display 120 side (region corresponding to the mirror portion 131) to form a reflection surface. Good.
  • the reinforcing portion 133 (133a to 133e) is formed on the upper and lower sides of the outer peripheral portion 132a.
  • the present invention is not limited to this, and only the upper side or the lower side is formed. Only one side may be set.
  • vehicle windshield 20 is used as the projection member for the display light emitted from the liquid crystal display 120, the present invention is not limited thereto, and a combiner or the like provided exclusively for the HUD device 100 may be used.
  • the display light from the liquid crystal display 120 is reflected by the reflection device 130
  • the display light from the liquid crystal display 120 may be once reflected by, for example, a plane mirror and then emitted to the reflection device 130.
  • liquid crystal display (display) 120 has been described as using a TFT liquid crystal panel, a dual scan type display, a TN segment liquid crystal, etc., but is not limited to this, and is self-luminous such as electroluminescence. It is good also as a display of a formula.
  • a laser projector that scans a laser may be used.

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Mechanical Engineering (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Transportation (AREA)
  • Instrument Panels (AREA)
  • Fittings On The Vehicle Exterior For Carrying Loads, And Devices For Holding Or Mounting Articles (AREA)

Abstract

Cet appareil d'affichage à tête haute pour un véhicule est pourvu : d'un dispositif d'affichage pour émettre une lumière d'affichage pour indiquer des informations d'affichage, l'affichage étant monté sur un véhicule; et un dispositif de réflexion ayant une partie de miroir (131) et une partie de support (132) pour retenir la partie de miroir (131), le dispositif réfléchissant amenant la lumière d'affichage émise à partir de l'affichage à être réfléchie par la partie miroir (131) à un élément de projection disposé sur le véhicule; l'appareil d'affichage tête haute amenant une image virtuelle des informations d'affichage à être affichée devant l'élément de projection. Ici, la partie de miroir (131) comprend un miroir concave en retrait sur un côté de surface arrière de celui-ci, la forme de surface avant de celui-ci étant rectangulaire, la partie de support (132) étant disposée sur le côté surface arrière de la partie miroir (131), et ayant une partie circonférentielle externe (132a) menant à la périphérie de la partie de miroir (131), et une partie de renforcement (133) pour renforcer la partie de support (132) étant formée dans au moins un côté de la partie circonférentielle externe et étant formée d'un seul tenant à l'intérieur d'une région évidée accompagnant l'évidement du miroir concave sur le côté de celui-ci sur lequel la lumière d'affichage est réfléchie.
PCT/JP2017/034827 2016-09-30 2017-09-27 Appareil d'affichage à tête haute pour véhicule WO2018062216A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2016192751A JP2018054966A (ja) 2016-09-30 2016-09-30 車両用ヘッドアップディスプレイ装置
JP2016-192751 2016-09-30

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WO2018062216A1 true WO2018062216A1 (fr) 2018-04-05

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114609781A (zh) * 2020-12-09 2022-06-10 矢崎总业株式会社 抬头显示装置

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPWO2021193074A1 (fr) 2020-03-26 2021-09-30

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2005186913A (ja) * 2003-12-26 2005-07-14 Yazaki Corp ヘッドアップディスプレイ装置
JP2005338689A (ja) * 2004-05-31 2005-12-08 Nippon Seiki Co Ltd 反射ミラー及びその反射ミラーを備えた反射ミラー装置
JP2016080900A (ja) * 2014-10-17 2016-05-16 ミネベア株式会社 角度調整機構および表示装置
US20160139410A1 (en) * 2014-11-19 2016-05-19 Hyundai Mobis Co., Ltd. Positioning module for head-up display device

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2005186913A (ja) * 2003-12-26 2005-07-14 Yazaki Corp ヘッドアップディスプレイ装置
JP2005338689A (ja) * 2004-05-31 2005-12-08 Nippon Seiki Co Ltd 反射ミラー及びその反射ミラーを備えた反射ミラー装置
JP2016080900A (ja) * 2014-10-17 2016-05-16 ミネベア株式会社 角度調整機構および表示装置
US20160139410A1 (en) * 2014-11-19 2016-05-19 Hyundai Mobis Co., Ltd. Positioning module for head-up display device

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114609781A (zh) * 2020-12-09 2022-06-10 矢崎总业株式会社 抬头显示装置

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