REFLECTIVE MEMBER, PLANAR LIGHT SOURCE, AND LIQUID CRYSTAL DISPLAY DEVICE

    公开(公告)号:US20250044641A1

    公开(公告)日:2025-02-06

    申请号:US18924031

    申请日:2024-10-23

    Inventor: Motokazu YAMADA

    Abstract: A planar light source includes a reflective member. The reflective member defines at least one slit including at least one first slit arranged in a first region extending in a first direction and intersecting a first virtual straight line at a prescribed position in the first region. The first virtual straight line is parallel to the first direction.

    LIGHT EMITTING DEVICE
    4.
    发明申请

    公开(公告)号:US20210265325A1

    公开(公告)日:2021-08-26

    申请号:US17318819

    申请日:2021-05-12

    Inventor: Motokazu YAMADA

    Abstract: A light emitting device includes a wiring substrate, and light emitting elements. The light emitting elements are aligned in a first array, and each includes a sapphire substrate having a lower surface, a pair of first lateral surfaces slanted with respect to the lower surface, and a pair of second lateral surfaces perpendicular to the lower surface, with the pair of first lateral surfaces has an acute angle lateral surface and an obtuse angle lateral surface, and a semiconductor layered structure disposed on the sapphire substrate. In a plan view, a direction along which the second lateral surfaces of one of the light emitting elements in the first array extend forms an angle of 45° with respect to a direction along which the second lateral surfaces of an adjacent one of the light emitting elements in the first array extend.

    LIGHT EMITTING DEVICE
    5.
    发明申请

    公开(公告)号:US20200335666A1

    公开(公告)日:2020-10-22

    申请号:US16922827

    申请日:2020-07-07

    Inventor: Motokazu YAMADA

    Abstract: A light emitting device includes a flexible substrate, at least one light emitting element, a cover member, a reflective member and a light transmissive member. The flexible substrate has a first surface and a second surface opposite to the first surface, and includes a flexible base member and a plurality of wiring portions disposed on a first surface side. The light emitting element is arranged on the first surface of the flexible substrate and electrically connected to the wiring portions. The cover member is arranged on the second surface of the flexible substrate and defines a through hole at a position overlapping the light emitting element in a plan view. The reflective member covers at least a part of a lower surface and at least a part of a side surface of the light emitting element. The light transmissive member covers a top surface of the light emitting element.

    SEMICONDUCTOR LIGHT EMITTING DEVICE
    6.
    发明申请

    公开(公告)号:US20200176631A1

    公开(公告)日:2020-06-04

    申请号:US16783496

    申请日:2020-02-06

    Abstract: A semiconductor light emitting device including a substrate, an electrode and a light emitting region is provided. The substrate may have protruding portions formed in a repeating pattern on substantially an entire surface of the substrate while the rest of the surface may be substantially flat. The cross sections of the protruding portions taken along planes orthogonal to the surface of the substrate may be semi-circular in shape. The cross sections of the protruding portions may in alternative be convex in shape. A buffer layer and a GaN layer may be formed on the substrate.

    LIGHT EMITTING DEVICE
    7.
    发明申请

    公开(公告)号:US20190326479A1

    公开(公告)日:2019-10-24

    申请号:US16457594

    申请日:2019-06-28

    Inventor: Motokazu YAMADA

    Abstract: A light emitting device includes a flexible substrate, at least one light emitting element, and a cover member. The flexible substrate has a first surface and a second surface, and includes a flexible base member and wiring portions disposed on a first surface side. The cover member is arranged on the second surface of the flexible substrate and defines at least a part of a recess defining an air layer. The recess is positioned so that a total maximum thickness of the flexible substrate and the cover member in a region corresponding to a region on the first surface where the at least one light emitting element is arranged is smaller than a total maximum thickness of the flexible substrate and the cover member in a region other than the region corresponding to the region on the first surface where the at least one light emitting element is arranged.

    BACKLIGHT INCLUDING LIGHT EMITTING MODULE AND LIGHT REFLECTIVE MEMBERS

    公开(公告)号:US20190305197A1

    公开(公告)日:2019-10-03

    申请号:US16442412

    申请日:2019-06-14

    Inventor: Motokazu YAMADA

    Abstract: A backlight includes: a light-emitting module including: a base member including a conductive pattern; a plurality of light-emitting devices, each of which is flip-chip bonded on the base member and electrically connected to the conductive pattern, and each of which includes: a light-emiting element, and a dielectric multi-layer film located on an upper surface of the light-emitting element; a plurality of light reflective members arranged between the plurality of light-emitting elements; a transparent laminate located above the plurality of light-emitting devices and including: a wavelength converting member adapted to absorb a portion of light from the light-emitting elements and to emit light of a wavelength that is different from an emission wavelength of the light-emitting elements, and a diffuser plate; and a reflective member facing a lateral surface of the transparent laminate.

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