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    DISPLAY DEVICE AND HEAD-UP DISPLAY
    14.
    发明公开
    DISPLAY DEVICE AND HEAD-UP DISPLAY 审中-公开

    公开(公告)号：US20230393391A1

    公开(公告)日：2023-12-07

    申请号：US18235610

    申请日：2023-08-18

    Applicant: Panasonic Intellectual Property Management Co., Ltd.

    Inventor： Yutaka KUMANO ,  Kouzou YUUKI ,  Yuji TAKASE ,  Keiji SUGIYAMA

    IPC: G02B27/01 ,  G02B5/02 ,  G02B1/10

    CPC classification number: G02B27/0101 ,  G02B5/0278 ,  G02B1/10

    Abstract: A display device according to the present disclosure includes a display member, a light transmission member, a light diffusion member, and a plurality of protrusions. The display member has a display surface. The light transmission member is disposed on the display surface side of the display member, has a first surface on a side opposite to the display member and a second surface on the display member side, and has light transparency. The light diffusion member is disposed on a side opposite to the display surface of the display member, and has light diffusion. The plurality of protrusions is provided between the light transmission member and the display member.

    DISPLAY, DISPLAY SYSTEM, IMAGE PROJECTION SYSTEM, AND MOVABLE OBJECT
    17.
    发明申请
    DISPLAY, DISPLAY SYSTEM, IMAGE PROJECTION SYSTEM, AND MOVABLE OBJECT 有权

    公开(公告)号：US20220252919A1

    公开(公告)日：2022-08-11

    申请号：US17733482

    申请日：2022-04-29

    Applicant: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.

    Inventor： Takato HADA ,  Takahiro AKIYOSHI ,  Hiroki HARA ,  Keiji SUGIYAMA

    IPC: G02F1/1347 ,  G02B27/01 ,  G02F1/1333 ,  G03B21/16

    Abstract: Provided is a head-up display including a liquid-crystal panel including a display screen provided at a front surface thereof, a Fresnel lens opposite the liquid-crystal panel from the display screen, a light-diffusion structure between the liquid-crystal panel and the Fresnel lens, a backlight that emits light toward the Fresnel lens, a body part accommodating the Fresnel lens, and a mirror that forms a virtual image corresponding to an image displayed on the display screen of the liquid-crystal panel, in a target space. The body part has a step-shaped structure including a first step surface and a second step surface, the first step surface and the second step surface are oriented in the same direction as the front surface of the liquid-crystal panel, the first step surface is located on the liquid-crystal panel side from the second step surface, and the liquid-crystal panel is supported on the second step surface.

    IMAGE DISPLAY APPARATUS
    18.
    发明申请
    IMAGE DISPLAY APPARATUS 审中-公开
    图像显示设备

    公开(公告)号：US20150339961A1

    公开(公告)日：2015-11-26

    申请号：US14819763

    申请日：2015-08-06

    Applicant: Panasonic Intellectual Property Management Co., Ltd.

    Inventor： Kenichi KASAZUMI ,  Keiji SUGIYAMA ,  Kakuya YAMAMOTO

    IPC: G09G3/02 ,  G02B26/08 ,  G02B5/18 ,  G03H1/22

    CPC classification number: G09G3/02 ,  G02B5/1842 ,  G02B26/0808 ,  G02B27/2271 ,  G03H1/2286 ,  G03H1/2294 ,  G03H2222/18 ,  G03H2240/51 ,  G09G3/3611 ,  G09G2320/0233 ,  G09G2320/0626 ,  G09G2320/0646 ,  G09G2360/16

    Abstract: An image display apparatus, including: a light source which emits coherent light; a spatial modulation element which diffracts the coherent light by displaying a diffraction grating pattern corresponding to an input image and which displays a virtual image by the diffracted light; and a control unit which calculates a total brightness representing a sum total of brightnesses of all pixels of the input image, and controls at least one of the light source and the spatial modulation element in such a manner that, if the total brightness has decreased, the virtual image is displayed at a lower brightness than a reference virtual image displayed when the input image is used directly.

    Abstract translation: 一种图像显示装置，包括：发出相干光的光源; 空间调制元件，其通过显示与输入图像相对应的衍射光栅图案衍射相干光，并且通过衍射光显示虚像; 以及控制单元，其计算表示输入图像的所有像素的亮度的总和的总亮度，并且以这样的方式控制光源和空间调制元件中的至少一个，使得如果总亮度降低， 虚拟图像以比直接使用输入图像时显示的参考虚拟图像低的亮度显示。

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