LAMINATED GLASS AND HEAD-UP DISPLAY

    公开(公告)号:US20220011575A1

    公开(公告)日:2022-01-13

    申请号:US17487076

    申请日:2021-09-28

    Inventor: Yujiro YANAI

    Abstract: Provided are a laminated glass capable of achieving distant projection of a virtual image in a HUD and a large screen and furthermore capable of solving a double image, and a HUD using this laminated glass. The laminated glass includes two glass plates, an intermediate film provided between the two glass plates, and a cholesteric liquid crystal layer. The cholesteric liquid crystal layer has a liquid crystal alignment pattern in which a direction of a molecular axis of the liquid crystal compound changes while continuously rotating along at least one in-plane direction on at least one main surface, and a bright portion and a dark portion derived from a cholesteric liquid crystalline phase in a cross-section, which are observed by a scanning electron microscope, are tilted with respect to the main surfaces.

    PROJECTION IMAGE DISPLAY MEMBER, WINDSHIELD GLASS, AND HEAD-UP DISPLAY SYSTEM

    公开(公告)号:US20210263314A1

    公开(公告)日:2021-08-26

    申请号:US17232997

    申请日:2021-04-16

    Abstract: Provided are a projection image display member having a high visible light transmittance, suppressing a double image of a display image, and having excellent suitability of polarized sunglasses for incident light reflected from external light, a windshield glass using the projection image display member, and a head-up display system. The problem is solved such that one or more phase difference layers, one or more selective reflection layers, and one or more polarization conversion layers are provided in this order, the polarization conversion layer being a layer in which a helical alignment structure of a liquid crystal compound is fixed, and the number of pitches x of the helical alignment structure and a film thickness y (μm) of the polarization conversion layer satisfying “0.3≤x≤7.0”, “0.5≤y≤6.0”, “y≤0.7x+3.2”, and “y≥0.7x−1.4”.

    WEARABLE DISPLAY DEVICE
    64.
    发明申请

    公开(公告)号:US20210181513A1

    公开(公告)日:2021-06-17

    申请号:US17186292

    申请日:2021-02-26

    Inventor: Yujiro YANAI

    Abstract: According to the present invention, it is possible to provide a wearable display device having good background visibility, a wide visual angle capable of viewing projected images, and a simple structure. The wearable display device includes at least a transparent screen and a projection device which projects an image on the transparent screen, in which a magnifying lens for viewing the image reflected from the transparent screen is disposed on a viewing side to cover at least a part of the transparent screen.

    BACKLIGHT UNIT
    66.
    发明申请
    BACKLIGHT UNIT 审中-公开

    公开(公告)号:US20180039013A1

    公开(公告)日:2018-02-08

    申请号:US15723746

    申请日:2017-10-03

    Abstract: Provided is a backlight unit capable of causing light that has exited from a light guide plate to be incident to a liquid crystal panel with high efficiency. The object is achieved by providing the backlight unit including a light source; a light guide plate that causes light to be incident to through an edge face and to exit through one of principal surfaces; and an optical film disposed on a surface of the light guide plate, the surface being on the opposite side of the light exiting surface, in which the optical film has a plurality of reflective polarizing elements each having a curved surface, and/or a plurality of reflective polarizing elements each having an inclined surface that is inclined with respect to the direction of light propagation of the light guide plate.

    OPTICAL MEMBER, OPTICAL ELEMENT, LIQUID CRYSTAL DISPLAY DEVICE, AND NEAR-TO-EYE OPTICAL MEMBER

    公开(公告)号:US20170336555A1

    公开(公告)日:2017-11-23

    申请号:US15672727

    申请日:2017-08-09

    Abstract: Provided is an optical member having a high brightness, a low haze, and a small color change, an optical element, a liquid crystal display device, and a near-to-eye optical member. The optical member includes a plurality of cholesteric liquid crystal dots that are provided on a substrate, in which a shape of each of the dots is a hemispherical or elliptical hemispherical shape in which the substrate side is planar, a conical or elliptical conical shape in which the substrate side is set as the bottom, or a shape in which a plurality of shapes selected from the shapes are laminated, the cholesteric liquid crystal dot has a reflection center wavelength with respect to visible light, the cholesteric structure of the dot has a stripe pattern including bright portions and dark portions in a cross-sectional view of the dot when observed with a scanning electron microscope, the dot includes a portion having a height which continuously increases to a maximum height in a direction moving from an end portion of the dot to the center of the dot, and in the portion, an angle between a normal line perpendicular to a line, which is formed using a first dark portion from a surface of the dot opposite to the substrate, and the surface of the dot is in a range of 70° to 90°.

    LIQUID CRYSTAL DISPLAY DEVICE
    70.
    发明申请

    公开(公告)号:US20170108726A1

    公开(公告)日:2017-04-20

    申请号:US15392383

    申请日:2016-12-28

    Abstract: Provided is a liquid crystal display device in which color reproducibility and brightness are improved. The liquid crystal display device includes a backlight that emits unpolarized blue light, a quantum rod layer which is provided on an emission side of the backlight and converts some of blue light to red linearly polarized light and green linearly polarized light using multiple quantum rods, a reflective polarizing layer which is provided on a side from which the red linearly polarized light and the green linearly polarized light of the quantum rod layer are emitted, and a liquid crystal panel disposed on a blue linearly polarized light emission side of the reflective polarizing layer, and a long axis direction of the quantum rods in the quantum rod layer and a polarization direction of the blue linearly polarized light emitted from the reflective polarizing layer are parallel to each other.

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