WO2021241497A1 - ヘッドアップディスプレイ装置 - Google Patents

ヘッドアップディスプレイ装置 Download PDF

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Publication number
WO2021241497A1
WO2021241497A1 PCT/JP2021/019600 JP2021019600W WO2021241497A1 WO 2021241497 A1 WO2021241497 A1 WO 2021241497A1 JP 2021019600 W JP2021019600 W JP 2021019600W WO 2021241497 A1 WO2021241497 A1 WO 2021241497A1
Authority
WO
WIPO (PCT)
Prior art keywords
light
plate
shielding
display
windshield
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/JP2021/019600
Other languages
English (en)
French (fr)
Japanese (ja)
Inventor
聖弥 小堀内
正彦 水落
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.)
Nippon Seiki Co Ltd
Original Assignee
Nippon Seiki Co Ltd
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 Nippon Seiki Co Ltd filed Critical Nippon Seiki Co Ltd
Priority to JP2022527029A priority Critical patent/JP7635782B2/ja
Publication of WO2021241497A1 publication Critical patent/WO2021241497A1/ja
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
    • B60K35/22—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]
    • 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
    • B60K35/60—Instruments characterised by their location or relative disposition 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
    • B60K35/80—Arrangements for controlling instruments
    • B60K35/81—Arrangements for controlling instruments for controlling displays
    • 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
    • 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
    • B60K37/00—Dashboards
    • B60K37/20—Dashboard panels

Definitions

  • This disclosure relates to a head-up display device.
  • a head-up display (HUD) device that radiates display light representing an image to the windshield of a vehicle and displays a virtual image of the image is known.
  • Patent Document 1 describes a HUD device including a passage port through which display light is passed toward a windshield and a housing having a light-shielding portion adjacent to the passage port.
  • a low-reflection sheet that suppresses the reflection of sunlight is attached to the light-shielding portion to prevent the image of the light-shielding portion from being reflected in the virtual image.
  • the present disclosure has been made in view of the above circumstances, and an object of the present disclosure is to provide a head-up display device capable of satisfactorily suppressing the reflection of unnecessary images.
  • the head-up display device is A display unit that emits display light that represents an image, A reflector that reflects the display light toward the windshield of the vehicle, A housing having a passage port through which the display light reflected by the reflection unit is passed toward the windshield and a light-shielding portion adjacent to the passage port, and accommodating the display unit and the reflection unit.
  • a cover portion that covers the light-shielding portion and has a light-shielding property is provided.
  • the covering portion has a plate portion arranged at a distance from the light-shielding portion. A plurality of holes are formed in the plate portion.
  • the schematic block diagram of the head-up display (HUD) apparatus which concerns on one Embodiment of this disclosure The schematic perspective view of the HUD apparatus which concerns on the said embodiment.
  • the schematic perspective view of the cover part which concerns on the said embodiment It is a figure which shows the cross section in line AA and the cross section of the light-shielding part shown in FIG. 2 of the cover part which concerns on the said embodiment, and is the figure for demonstrating the function of the cover part.
  • the figure for demonstrating the function of the cover part which concerns on embodiment The figure for demonstrating the function of the cover part which concerns on embodiment.
  • the head-up display (HUD: Head-Up Display) device 100 is provided in the dashboard (also referred to as an instrument panel) of the vehicle, and as shown in FIG. 1, an image is displayed on the windshield 1.
  • the display light 2 to be represented is emitted to display a virtual image of the image.
  • the phantom image is displayed in front of the vehicle through the windshield 1.
  • each configuration may be described using the left / right, up / down, and front / rear directions of the vehicle.
  • an X-axis along the left-right direction, a Y-axis along the up-down direction, and a Z-axis along the front-back direction are shown.
  • the HUD device 100 includes a display unit 10, a first mirror 21, a second mirror 22, a housing 30, a control board 40, and a covering unit 50.
  • the display unit 10 radiates the display light 2 representing the image toward the first mirror 21.
  • the display unit 10 has, for example, an LCD (Liquid Crystal Display) and a backlight that illuminates the LCD from behind.
  • the LCD is, for example, a TFT (Thin Film Transistor) type.
  • the backlight is composed of, for example, an LED (Light Emitting Diode), a light guide member, or the like.
  • the first mirror 21 is made of, for example, a concave mirror, and reflects the display light 2 from the display unit 10 toward the second mirror 22.
  • the second mirror 22 is made of, for example, a concave mirror, and reflects the display light 2 from the first mirror 21 toward the windshield 1 located outside the HUD device 100.
  • the second mirror 22 is rotationally driven around the rotation shaft 22a by a drive mechanism (not shown).
  • the first mirror 21 has a curvature in which the focal point 21a of the first mirror 21 is located between the first mirror 21 and the second mirror 22. As a result, the light rays of the display light 2 reflected by the first mirror 21 cross up and down before reaching the second mirror 22.
  • the optical system using the first mirror 21 and the second mirror 22 having such a relationship is hereinafter referred to as a cross optical system.
  • the housing 30 houses the display unit 10, the first mirror 21, the second mirror 22, and the like, and includes a lower case 31, a middle case 32, and an upper case 33.
  • the lower case 31 has a box shape that opens upward and is made of metal or resin.
  • the lower case 31 covers the middle case 32 from below, and houses the display unit 10 and the control board 40 inside the middle case 32.
  • the lower case 31 is fixed to the middle case 32 by a known fixing means such as a screw.
  • the middle case 32 has a box shape that opens upward and is made of metal or resin.
  • the middle case 32 houses a second mirror 22 and a drive mechanism (not shown) therein. Behind the bottom of the middle case 32, an opening H1 through which the display light 2 from the display unit 10 toward the first mirror 21 passes is formed.
  • the upper case 33 covers the middle case 32 from above and is fixed to the middle case 32 by a known fixing means such as a screw. As shown in FIG. 2, the upper case 33 is formed in a frame shape. The upper case 33 supports, for example, the first mirror 21. The upper case 33 is formed of, for example, a black resin and has a light-shielding property.
  • the upper case 33 has a passage port H2 for passing the display light 2 reflected by the second mirror 22 toward the windshield 1, and a light-shielding portion 330 adjacent to the passage port H2.
  • the light-shielding portion 330 includes a main wall portion 331, a side wall portion 332, 333, and a front wall portion 334.
  • the main wall portion 331 faces the windshield 1 and suppresses the invasion of external light 3 such as sunlight into the housing 30.
  • the main wall portion 331 is inclined, and the front end portion is located below the rear end portion.
  • the front wall portion 334 faces the main wall portion 331 in the front-rear direction.
  • the front wall portion 334 stands along the vertical direction.
  • the side wall portion 332 and the side wall portion 333 face each other in the left-right direction, and the main wall portion 331 and the front wall portion 334 are connected to each other.
  • the passage port H2 is surrounded by a main wall portion 331, a side wall portion 332, 333, and a front wall portion 334, and has a substantially rectangular shape as shown in FIG. A part of the edge of the passage port H2 is along the lower end of the main wall portion 331.
  • the main wall portion 331 is provided with a covering portion 50.
  • a cover glass (not shown) is provided at the upper end of the upper case 33.
  • the cover glass covers the above-mentioned passage port H2, the light-shielding portion 330, and the cover portion 50 from above.
  • the control board 40 is a printed circuit board on which a microcomputer that controls the overall operation of the HUD device 100 is mounted.
  • the control board 40 controls a drive mechanism (not shown) to rotate the second mirror 22 to control the display position of the virtual image in the vertical direction. Further, it communicates with a system such as a control board 40 and an ECU (Electronic Control Unit) that controls each part of the vehicle, and displays an image showing information about the vehicle on the display unit 10.
  • a system such as a control board 40 and an ECU (Electronic Control Unit) that controls each part of the vehicle, and displays an image showing information about the vehicle on the display unit 10.
  • ECU Electronic Control Unit
  • the covering portion 50 schematically shown in FIG. 1 covers the light-shielding portion 330 from the windshield 1 side (that is, covers the surface of the light-shielding portion 330 facing the windshield 1), and the image of the light-shielding portion 330 is reflected in the virtual image. It is a configuration that suppresses this.
  • the covering portion 50 is attached to the main wall portion 331 of the light-shielding portion 330 with an elastic double-sided tape T.
  • the covering portion 50 is provided along the surface of the main wall portion 331 facing the windshield 1, is inclined in the same manner as the main wall portion 331, and the front end portion is located below the rear end portion.
  • the covering portion 50 is formed of a member having a light-shielding property.
  • the covering portion 50 is partially shown in consideration of the legibility of the drawing, but the covering portion 50 according to this embodiment is in the region 4 shown by the broken line in the main wall portion 331. It is provided over.
  • the covering portion 50 includes a fixed portion 51 and a plate portion 52.
  • the covering portion 50 is formed of a member having a matte coating on the entire surface of a metal plate.
  • the covering portion 50 is manufactured by forming a thin plate (for example, a plate thickness of 1 mm or less) made of SECC (electrogalvanized steel plate) and then applying a black matte coating.
  • the fixed portion 51 is an outer edge portion of the covering portion 50 and is a portion fixed to the main wall portion 331 of the light shielding portion 330. That is, the fixed portion 51 is a portion to which the above-mentioned double-sided tape T (see FIG. 1) is attached.
  • the plate portion 52 is arranged at a distance from the main wall portion 331 of the light-shielding portion 330, and is located inside, for example, the fixed portion 51.
  • the lower surfaces of the plate portion 52 and the fixed portion 51 are flush with each other, and depending on the thickness of the double-sided tape T, the plate portion 52 (specifically, the facing portion 5a described later). ) And the main wall portion 331 are secured. With this spacing, it is possible to prevent the plate portion 52 and the main wall portion 331 from rubbing against each other due to the vibration of the vehicle and being worn. Further, the double-sided tape T that secures the interval can absorb the tolerance of each part due to its elasticity and can secure the cushioning property.
  • the plate portion 52 includes a plurality of blade plates 5 extending in a band shape and a plurality of holes 52a, and is formed in a louver shape.
  • the wing plates 5 extend along the left-right direction (X direction) of the vehicle and are provided side by side in the lateral direction thereof.
  • the hole 52a is an elongated hole located between adjacent blade plates 5 and extending along the blade plate 5.
  • the feather plates 5 are provided at equal intervals in the lateral direction thereof. Therefore, the holes 52a located between the adjacent blades 5 are also provided at equal intervals in the lateral direction thereof.
  • the feather plate 5 includes a facing portion 5a facing the main wall portion 331 of the light-shielding portion 330 at a distance, and an inclined portion 5b connected to the facing portion 5a.
  • the inclined portion 5b is connected to one end of the facing portion 5a (specifically, the end close to the second mirror 22 shown in FIG. 1) and is inclined so as to be separated from the main wall portion 331.
  • the light reflected by the second mirror 22 may be directed to the main wall portion 331 of the light shielding portion 330. ..
  • the light reflected by the main wall portion 331 of the light-shielding portion 330 is further reflected by the windshield 1 toward the viewer of the virtual image, and an unnecessary image is reflected in the virtual image. Occurs.
  • the covering portion 50 is formed with the following functions.
  • the side of the adjacent blades 5 farther from the second mirror 22 is referred to as the first blade plate 5f, and the second mirror 22 is used.
  • the one closer to the second blade plate is 5n.
  • the external light 3 see FIG. 1
  • the light reflected by the second mirror 22 and directed to the main wall portion 331 of the light shielding portion 330 is mainly. , Take the optical path indicated by the light 3a, 3b, 3c described in order below.
  • the inclined portion 5b of the first wing plate 5f passes through the hole 52a between the first wing plate 5f and the second wing plate 5n, is reflected by the light-shielding portion 330, and is reflected by the windshield 1 (wind shield 1 ( Blocks the light 3a heading toward (see FIG. 1).
  • the inclined portion 5b of the first wing plate 5f is reflected by the facing portion 5a of the second wing plate 5n and blocks the light 3b toward the windshield 1.
  • the inclined portion 5b of the first wing plate 5f passes through the hole 52a between the first wing plate 5f and the second wing plate 5n after being reflected by the inclined portion 5b, and is a light-shielding portion. It is reflected by 330 and blocks the light 3c toward the windshield 1.
  • the covering portion 50 has an inclined portion 5b that blocks each of the lights 3a, 3b, and 3c. Most of the external light that reaches the covering portion 50 or the main wall portion 331 in the optical path other than the light 3a, 3b, and 3c goes to the outside of the eye box, which is set as a range in which the user can see the virtual image. That is, according to the covering portion 50, the external light 3 that is reflected by the covering portion 50 or the light-shielding portion 330 (specifically, the main wall portion 331), is further reflected by the windshield 1, and then goes into the eye box is reduced. be able to. Therefore, it is possible to satisfactorily suppress the reflection of unnecessary images.
  • the covering portion 50 described above is formed by, for example, cutting a portion corresponding to the end of the inclined portion 5b from one metal plate by laser processing, and then bending the inclined portion 5b. As a result, the shape of the metal plate after molding becomes a louver shape in which the blade plates 5 and the holes 52a are alternately arranged.
  • a covering portion 50 is produced by applying a matte coating to the entire surface of a metal plate formed in a louver shape.
  • the inclined portion 5b can be omitted from the blade plate 5. If the distance between the facing portion 5a and the light-shielding portion 330 is adjusted, the first blade plate 5f passes through the hole 52a between the first blade plate 5f and the second blade plate 5n, is reflected by the light-shielding portion 330, and is windowed. A part of the light 3a toward the shield 1 (see FIG. 1) can be blocked.
  • the hole 52a is not limited to a long hole extending in the left-right direction of the vehicle, and may be a round hole.
  • the cover portion 50 is provided only on the main wall portion 331 of the light-shielding portion 330 has been shown, but the present invention is not limited to this, and the arrangement location of the cover portion 50 in the light-shielding portion 330 can be arbitrarily changed.
  • the side wall portion 332, 333 or the front wall portion 334 may be provided with a covering portion 50.
  • the extending direction of the wing plate 5 and the hole 52a is set in a direction capable of effectively blocking the reflection of external light, and is not limited to the left-right direction of the vehicle, but may be the front-rear direction of the vehicle or the like. From the viewpoint of satisfactorily suppressing the reflection of unnecessary images, it is preferable that at least the main wall portion 331 is provided with the covering portion 50.
  • the configuration of the optical system in the HUD device 100 is arbitrary as long as the display light 2 from the display unit 10 can be radiated to the windshield 1, and the number, shape, and arrangement of the mirrors that reflect the display light 2 are appropriately changed. be able to.
  • the covering portion 50 is particularly suitable when a cross optical system is adopted. This is because in the cross optical system, the light radiated to the main wall portion 331 of the light shielding portion 330 tends to be stronger.
  • the configuration of the display unit 10 is not limited and is arbitrary.
  • the display unit 10 may use an OLED (Organic Light-Emitting Diode).
  • the display unit 10 may include a DMD (Digital Micromirror Device) and a transmissive screen that receives the reflected light from the DMD and displays an image.
  • DMD Digital Micromirror Device
  • the type of vehicle on which the HUD device 100 is mounted is not limited, and it can be applied to various vehicles such as motorcycles and motorcycles.
  • the HUD device 100 described above includes a display unit 10 that emits display light 2, a reflection unit that reflects the display light 2 toward the windshield 1 (a configuration corresponding to the second mirror 22), a display unit 10, and reflection.
  • a housing 30 for accommodating the portions and covering portions 50 and 50M are provided.
  • the housing 30 has a passage port H2 for passing the display light 2 reflected by the reflection unit toward the windshield 1, and a light-shielding portion 330 adjacent to the passage port H2.
  • the covering portions 50 and 50M cover the light-shielding portion 330 from the windshield 1 side and have a light-shielding property.
  • the covering portions 50 and 50M have a plate portion 52 arranged at a distance from the light-shielding portion 330, and a plurality of holes 52a are formed in the plate portion 52.
  • the plate portion 52 of the covering portion 50 includes a blade plate 5 extending in a band shape, a plurality of blade plates 5 are arranged side by side in the lateral direction thereof, and holes 52a are located between adjacent feather plates 5. It is located at and extends along the wing plate 5. With this configuration, it is possible to effectively block the external light that passes through the hole 52a and is reflected by the light-shielding portion 330 toward the windshield 1.
  • the covering portion 50 is provided on the main wall portion 331 of the light shielding portion 330, the feather plate 5 and the hole 52a are set so as to extend in the left-right direction of the vehicle as described above.
  • the wing plate 5 has an opposed portion 5a facing the light-shielding portion 330 at a distance, and an inclined portion 5b connected to an end of the facing portion 5a close to the reflecting portion and inclined away from the light-shielding portion 330. It is preferable to have.
  • the inclined portion 5b has a shape that blocks at least one of the lights 3a, 3b, and 3c, and preferably blocks all of the lights 3a, 3b, and 3c, as described with reference to FIGS. 4 to 6. ..
  • the plate portion 52 is composed of a metal plate that has been subjected to a matte coating, and the inclined portion 5b is formed by a portion in which the feather plate 5 is bent. With this configuration, the covering portion 50 can be easily manufactured. Further, since the plate portion 52 of the covering portion 50 can be made thin, for example, the reflected light on the tip surface of the inclined portion 5b can be reduced. Further, by using a metal, heat resistance can be ensured.
  • the covering portion 50 can be molded with a resin.
  • a resin is used, the reflection of light on the surface of the covering portion 50 may be reduced by a known method other than the matte coating.
  • the plate portion 52 of the covering portion 50 may be formed with metal and the fixed portion 51 with resin.
  • the covering portion 50 may be fixed to the light-shielding portion 330 via an elastic member other than the double-sided tape T, a spacer, or the like, and the space between the plate portion 52 and the light-shielding portion 330 may be secured.
  • the fixed portion 51 itself may function as a spacer, and the distance between the plate portion 52 and the light-shielding portion 330 may be secured.
  • HUD Head-up display
  • Windshield Display light
  • External light Area
  • Display unit 21
  • 2nd mirror example of reflector
  • Housing 33
  • Upper case H2 Passage port 330
  • Shading part 331
  • Main wall part 332,333
  • Side wall part 334
  • Front wall part 40
  • Control board 50
  • Covering part 51
  • Fixed part 52 Plate part 52a Hole 5 Feather plate 5a
  • Opposing part 5b Inclined part 5f 1st wing plate 5n 2nd wing plate

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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)
PCT/JP2021/019600 2020-05-26 2021-05-24 ヘッドアップディスプレイ装置 Ceased WO2021241497A1 (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2022527029A JP7635782B2 (ja) 2020-05-26 2021-05-24 ヘッドアップディスプレイ装置

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2020091106 2020-05-26
JP2020-091106 2020-05-26

Publications (1)

Publication Number Publication Date
WO2021241497A1 true WO2021241497A1 (ja) 2021-12-02

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2024195768A1 (ja) * 2023-03-23 2024-09-26 株式会社小糸製作所 画像投影装置
WO2026069974A1 (ja) * 2024-09-30 2026-04-02 マクセル株式会社 表示装置

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20170045738A1 (en) * 2015-07-17 2017-02-16 Lg Electronics Inc. Head up display for vehicle
WO2017126457A1 (ja) * 2016-01-21 2017-07-27 日本精機株式会社 ヘッドアップディスプレイ装置
JP2017165163A (ja) * 2016-03-15 2017-09-21 日本精機株式会社 車両用表示装置

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20170045738A1 (en) * 2015-07-17 2017-02-16 Lg Electronics Inc. Head up display for vehicle
WO2017126457A1 (ja) * 2016-01-21 2017-07-27 日本精機株式会社 ヘッドアップディスプレイ装置
JP2017165163A (ja) * 2016-03-15 2017-09-21 日本精機株式会社 車両用表示装置

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2024195768A1 (ja) * 2023-03-23 2024-09-26 株式会社小糸製作所 画像投影装置
WO2026069974A1 (ja) * 2024-09-30 2026-04-02 マクセル株式会社 表示装置

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JP7635782B2 (ja) 2025-02-26

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