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    BACKLIGHT UNIT AND DISPLAY DEVICE
    1.
    发明申请
    BACKLIGHT UNIT AND DISPLAY DEVICE 有权
    背光单元和显示设备

    公开(公告)号：US20160209649A1

    公开(公告)日：2016-07-21

    申请号：US14914482

    申请日：2014-08-07

    Applicant: NIPPON SEIKI CO., LTD.

    Inventor： Takanori SHIGENO ,  Kazuya MATSUURA

    IPC: G02B27/01 ,  G02F1/1335

    CPC classification number: G02B27/0101 ,  G02B2027/015 ,  G02F1/133605 ,  G02F2001/133607 ,  G03B21/006 ,  G03B21/2066

    Abstract: Provided are: a backlight unit that is capable of increasing the degree of freedom in design of a device on which the backlight unit is mounted; and a display device which is provided with this backlight unit. This backlight unit is provided with: a light source which emits light that illuminates a liquid crystal display element; a light collection means for focusing the light emitted from the light source on a display region (A) of the liquid crystal display element; and a reflective part which has a reflective surface that reflects the light emitted from the light source toward the liquid crystal display element. This backlight unit is configured such that the optical path for the light from the light source to the liquid crystal display element is replicated at the reflective part by having the reflective surface inclined to the optical axis (AX) of the light source.

    Abstract translation: 提供：背光单元，其能够增加其上安装有背光单元的设备的设计自由度; 以及设置有该背光单元的显示装置。 该背光单元设置有：发光的液晶显示元件的光源; 用于将从光源发射的光聚焦在液晶显示元件的显示区域（A）上的光收集装置; 以及具有将从光源发射的光朝向液晶显示元件反射的反射面的反射部。 该背光单元被配置为使得通过使反射表面相对于光源的光轴（AX）倾斜，用于从光源到液晶显示元件的光的光路在反射部分被复制。

    SCREEN DEVICE AND HEAD-UP DISPLAY DEVICE
    2.
    发明申请
    SCREEN DEVICE AND HEAD-UP DISPLAY DEVICE 审中-公开

    公开(公告)号：US20180188529A1

    公开(公告)日：2018-07-05

    申请号：US15738438

    申请日：2016-06-07

    Applicant: NIPPON SEIKI CO., LTD.

    Inventor： Megumi SATO ,  Kazuo MOROHASHI ,  Kazuya MATSUURA

    IPC: G02B27/01 ,  G03B21/62 ,  G03B21/10

    CPC classification number: G02B27/0101 ,  B60K35/00 ,  B60K37/02 ,  B60K2370/155 ,  B60K2370/31 ,  B60K2370/334 ,  G02B27/01 ,  G02B2027/0145 ,  G03B21/10 ,  G03B21/62

    Abstract: Provided are a screen device and a head-up display device which allow the quality of a display image to be improved. The head-up display device comprises a screen device, a display for emitting projection light, and a focus position adjustment unit for receiving projection light emitted from the display, changing the distance to a focus position for at least a portion of the incident projection light, and adjusting the projection light to have different distances to a focus position. The screen device is provided with a light shielding part preventing first display light emitted from a first display image from reaching a second screen. The head-up display device emits the first display light from the first display image displayed on a first screen and second display light from a second display image displayed on the second screen, and displays the two display images, as virtual images through a windshield, the second display light being prevented from mixing with second projection light projected onto the second screen.

    HEAD-UP DISPLAY DEVICE
    7.
    发明申请
    HEAD-UP DISPLAY DEVICE 审中-公开

    公开(公告)号：US20180210200A1

    公开(公告)日：2018-07-26

    申请号：US15744010

    申请日：2016-07-12

    Applicant: NIPPON SEIKI CO., LTD.

    Inventor： Kazuya MATSUURA ,  Kazuo MOROHASHI ,  Megumi SATO

    IPC: G02B27/01

    CPC classification number: G02B27/0101 ,  B60K35/00 ,  B60K2370/23 ,  B60K2370/334 ,  G02B27/2278 ,  G02B2027/0127 ,  G02B2027/0185

    Abstract: The purpose of the present invention is to provide a compact and low-cost head-up display device capable of creating a sense of depth in a virtual image. This head-up display device includes a light-emitting device, a reflecting mirror, and a screen. The reflecting mirror includes two reflecting surfaces that are a first reflecting surface having a flat shape and a second reflecting surface having a curved shape. The screen is composed of a first screen through which the light reflected from the first reflecting surface passes, and a second screen through which the light reflected from the second reflecting surface passes. The first screen and the second screen are disposed so that the length of a first optical path in which the light emitted from the light-emitting device reaches the first screen is different from the length of a second optical path in which the light emitted from the light-emitting device reaches the second screen.

    HEAD-UP DISPLAY DEVICE
    8.
    发明申请
    HEAD-UP DISPLAY DEVICE 审中-公开

    公开(公告)号：US20170299922A1

    公开(公告)日：2017-10-19

    申请号：US15513551

    申请日：2015-09-18

    Applicant: NIPPON SEIKI CO., LTD.

    Inventor： Kazuya MATSUURA ,  Takeru KAWAI ,  Hiroteru HARUYAMA

    IPC: G02F1/1335 ,  G02B27/01 ,  B60K35/00

    CPC classification number: G02F1/133611 ,  B60K35/00 ,  B60K2370/1529 ,  B60K2370/33 ,  B60K2370/334 ,  G02B27/0101 ,  G02B27/0911 ,  G02B2027/011 ,  G02B2027/0145 ,  G02F1/133603 ,  G02F1/133606

    Abstract: A head-up display device projects display light from a display including a backlight unit and a liquid crystal display element on a viewpoint area of a viewer via projection means and causes an image by the display light to be visually recognized. The backlight unit includes: a light source emitting light for illuminating the liquid crystal display element; a lens array including a plurality of lenses, and dividing the light from the light source and generating a plurality of images of the light source; and light gathering means which gather the light from the images of the light source such that the light corresponds to a display area of the liquid crystal display element, wherein the lens array is configured such that the light distribution angles of the lenses at the periphery thereof are different from the light distribution angles of the lenses at the center thereof.

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