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    HEAD-UP DISPLAY
    2.
    发明公开
    HEAD-UP DISPLAY 审中-公开

    公开(公告)号：US20230350200A1

    公开(公告)日：2023-11-02

    申请号：US18207203

    申请日：2023-06-08

    Applicant: MAXELL, LTD.

    Inventor： Haruhiko YONEDA ,  Souta SATO ,  Nozomu SHIMODA

    IPC: G02B27/01 ,  B60K35/00 ,  B60R1/00 ,  G06V20/56

    CPC classification number: G02B27/0101 ,  B60K35/00 ,  B60R1/00 ,  G06V20/56 ,  B60K2370/1529 ,  B60K2370/23 ,  B60K2370/31 ,  B60K2370/333 ,  B60K2370/336 ,  B60R2300/205 ,  G02B2027/0138 ,  G02B2027/014

    Abstract: A main controller of an HUD is configured to: acquire road surface information of a front road surface based on a plurality of measurement points on the front road surface, which is detected by a road surface detection sensor mounted on a vehicle with the HUD and is positioned forward of a traveling direction of the vehicle; calculate, by using the road surface information, a virtual image plane position on a virtual image plane where a virtual image of a display object is displayed, which is a display position of the virtual image for displaying the virtual image along the front road surface; and calculate a display position of a display surface within an image display device, which corresponds to the virtual image plane position, so as to output, to the image display device, a control signal for displaying the display object on the display position of the display surface.

    HEAD-UP DISPLAY APPARATUS
    3.
    发明申请
    HEAD-UP DISPLAY APPARATUS 审中-公开

    公开(公告)号：US20190235240A1

    公开(公告)日：2019-08-01

    申请号：US16341078

    申请日：2017-12-18

    Applicant: Maxell, Ltd.

    Inventor： Yuki NAGANO ,  Nozomu SHIMODA

    IPC: G02B27/01 ,  B60K35/00 ,  G09G5/377

    CPC classification number: G02B27/0101 ,  B60K35/00 ,  B60K2370/1529 ,  B60K2370/333 ,  B60K2370/334 ,  B60K2370/37 ,  B60K2370/77 ,  G02B26/10 ,  G02B27/01 ,  G02F1/13 ,  G09G5/00 ,  G09G5/377

    Abstract: The present invention provides a head-up display apparatus capable of both long-distance display and short-distance display. A functional film 51 is mounted on a glare trap part 50 of a head-up display apparatus 1. In order to display a first virtual image 9a, a first image display device 30a projects a first image onto a windshield 3 via the glare trap part. In order to display a second virtual image 9b having a different display distance, a second image display device 30b generates a second image on the functional film and projects the second image onto the windshield. For the functional film 51, a variable transmittance film having a light transmittance that varies according to the applied voltage or a transparent self-luminous film in which an irradiated portion emits light when irradiated with a laser beam of a specific wavelength is used.

    HEAD-UP DISPLAY
    4.
    发明公开
    HEAD-UP DISPLAY 审中-公开

    公开(公告)号：US20240361595A1

    公开(公告)日：2024-10-31

    申请号：US18766787

    申请日：2024-07-09

    Applicant: MAXELL, LTD.

    Inventor： Haruhiko YONEDA ,  Souta SATO ,  Nozomu SHIMODA

    IPC: G02B27/01 ,  B60K35/00 ,  B60K35/23 ,  G06V20/56

    CPC classification number: G02B27/0101 ,  B60K35/00 ,  G06V20/56 ,  B60K35/23 ,  B60K2360/23 ,  B60K2360/31 ,  B60K2360/333 ,  B60K2360/336 ,  B60R2300/205 ,  G02B2027/0138 ,  G02B2027/014

    Abstract: A main controller of an HUD is configured to: acquire road surface information of a front road surface based on a plurality of measurement points on the front road surface, which is detected by a road surface detection sensor mounted on a vehicle with the HUD and is positioned forward of a traveling direction of the vehicle; calculate, by using the road surface information, a virtual image plane position on a virtual image plane where a virtual image of a display object is displayed, which is a display position of the virtual image for displaying the virtual image along the front road surface; and calculate a display position of a display surface within an image display device, which corresponds to the virtual image plane position, so as to output, to the image display device, a control signal for displaying the display object on the display position of the display surface.

    HEAD-UP DISPLAY APPARATUS
    6.
    发明申请
    HEAD-UP DISPLAY APPARATUS 有权

    公开(公告)号：US20220365347A1

    公开(公告)日：2022-11-17

    申请号：US17870308

    申请日：2022-07-21

    Applicant: MAXELL, LTD.

    Inventor： Akio MISAWA ,  Nozomu SHIMODA ,  Kazuomi KANEKO ,  Koji HIRATA ,  Toshinori SUGIYAMA

    IPC: G02B27/01 ,  B60K35/00 ,  H05K7/20

    Abstract: An object of the present invention is to provide a head-up display apparatus further reduced in size, the head-up display apparatus having: an image display apparatus including a light source and a display element; and a virtual image optical system in which light emitted from the image display apparatus is reflected by a windshield or a combiner of the vehicle so that a virtual image is displayed in front of the vehicle, wherein the virtual image optical system has a concave mirror and a distortion correcting lens, and the distortion correcting lens is disposed between the image display apparatus and the concave mirror, the concave mirror is disposed in a housing including an outer case along a shape of an effective light path area of the image light from the image display apparatus, and the image display apparatus is attached to part of an outer periphery of the housing.

    HEAD-UP DISPLAY DEVICE
    8.
    发明申请
    HEAD-UP DISPLAY DEVICE 有权

    公开(公告)号：US20220066209A1

    公开(公告)日：2022-03-03

    申请号：US17521933

    申请日：2021-11-09

    Applicant: MAXELL, LTD.

    Inventor： Akio MISAWA ,  Nozomu SHIMODA ,  Yuji FUJITA ,  Shigeki HOSHINO

    IPC: G02B27/01 ,  G02B7/182 ,  G02B17/08

    Abstract: The head-up display device includes a display element that emits image light and a virtual image optical system. The virtual image optical system includes a lens unit and a free curved surface mirror disposed along the emission direction of the image light in this order from a position close to the display element. The display element is disposed with a tilting attitude with respect to the optical axis of the lens unit with an end on the housing aperture side in an emission surface being close to an incidence surface in the lens unit and with an end on the opposite side of the housing aperture in an emission surface being apart from an incidence surface in the lens unit. The lens unit has an optical characteristic of optically enlarging an optical path length difference according to a virtual image distance difference.

    HEAD-UP DISPLAY
    9.
    发明申请
    HEAD-UP DISPLAY 有权

    公开(公告)号：US20210271079A1

    公开(公告)日：2021-09-02

    申请号：US17258465

    申请日：2019-06-17

    Applicant: MAXELL, LTD.

    Inventor： Haruhiko YONEDA ,  Souta SATO ,  Nozomu SHIMODA

    IPC: G02B27/01 ,  G06K9/00 ,  B60K35/00 ,  B60R1/00

    Abstract: A main controller of an HUD is configured to: acquire road surface information of a front road surface based on a plurality of measurement points on the front road surface, which is detected by a road surface detection sensor mounted on a vehicle with the HUD and is positioned forward of a traveling direction of the vehicle; calculate, by using the road surface information, a virtual image plane position on a virtual image plane where a virtual image of a display object is displayed, which is a display position of the virtual image for displaying the virtual image along the front road surface; and calculate a display position of a display surface within an image display device, which corresponds to the virtual image plane position, so as to output, to the image display device, a control signal for displaying the display object on the display position of the display surface.

    HEAD UP DISPLAY APPARATUS AND DISPLAY CONTROL METHOD THEREOF
    10.
    发明申请
    HEAD UP DISPLAY APPARATUS AND DISPLAY CONTROL METHOD THEREOF 有权

    公开(公告)号：US20210165220A1

    公开(公告)日：2021-06-03

    申请号：US16757801

    申请日：2018-10-12

    Applicant: MAXELL, LTD.

    Inventor： Takumi NAKADA ,  Toshimitsu WATANABE ,  Nozomu SHIMODA

    IPC: G02B27/01 ,  G09G5/38 ,  G06T7/70 ,  G09G3/00 ,  B60R1/00

    Abstract: In relation to a HUD apparatus having an AR function, the shift between an object and a virtual image (AR image) is reduced. The HUD apparatus extracts a predetermined object based on an image taken by an external camera, acquires object information including an object position in space, viewpoint position information of a driver and the amount of movement of the viewpoint position in space based on an image taken by an internal camera, and information including a position of a virtual image region in space. The HUD apparatus generates the image to be superimposed on the object, and corrects a display position of the image in the virtual image region including at least a position in a horizontal direction, and performs conversion processing at the time of the correction so that a virtual image region is set as a display position of the image after correction.

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