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    Light-emitting device
    1.
    发明授权
    Light-emitting device 有权

    公开(公告)号：US12111029B2

    公开(公告)日：2024-10-08

    申请号：US18534571

    申请日：2023-12-09

    申请人： NICHIA CORPORATION

    发明人： Tatsuya Hayashi ,  Shinya Okura

    IPC分类号： F21S41/176 ,  F21S41/141

    CPC分类号： F21S41/176 ,  F21S41/141

    摘要： A light-emitting device includes a substrate, a light-emitting element, a wavelength conversion layer, a light adjustment member, a light-transmissive member, and a covering member. The light-emitting element includes first and second light-emitting portions. The wavelength conversion layer contains a first phosphor that performs wavelength conversion of first light emitted from the first light-emitting portion and second light emitted from the second light-emitting portion into third light. The light adjustment member is disposed partially over the wavelength conversion layer and overlaps one of the first light-emitting portion and the second light-emitting portion in plan view. The light-transmissive member is disposed over the wavelength conversion layer and the light adjustment member. The covering member covers a side surface of the light-emitting element, a side surface of the wavelength conversion layer, a side surface of the light adjustment member, and a side surface of the light-transmissive member.

    Light-emitting device and manufacturing method thereof
    2.
    发明授权
    Light-emitting device and manufacturing method thereof 有权

    公开(公告)号：US11879607B2

    公开(公告)日：2024-01-23

    申请号：US18306626

    申请日：2023-04-25

    申请人： NICHIA CORPORATION

    发明人： Tatsuya Hayashi ,  Shinya Okura

    IPC分类号： F21S41/176 ,  F21S41/141

    CPC分类号： F21S41/176 ,  F21S41/141

    摘要： A light-emitting device includes a light-emitting element, the wavelength conversion member, and a light adjustment member. The light-emitting element includes a support substrate, and a first light-emitting portion and a second light-emitting portion disposed adjacent to each other. The wavelength conversion member is configured to perform wavelength conversion of first light emitted from the first light-emitting portion and second light emitted from the second light-emitting portion into third light. The light adjustment member overlaps one of the first light-emitting portion and the second light-emitting portion in a plan view. In the light-emitting element, an emission intensity of the first light at a light emission peak wavelength of the second light is lower than an emission intensity of the second light at the light emission peak wavelength of the second light, during light emission of the light-emitting device.

    Light-emitting device
    3.
    发明授权
    Light-emitting device 有权

    公开(公告)号：US12013089B2

    公开(公告)日：2024-06-18

    申请号：US18352571

    申请日：2023-07-14

    申请人： NICHIA CORPORATION

    发明人： Satoshi Shichijo ,  Tatsuya Hayashi ,  Yusuke Hayashi ,  Masahiro Okazaki

    IPC分类号： F21K9/64 ,  F21K9/68 ,  F21S41/176 ,  F21Y115/10

    CPC分类号： F21K9/64 ,  F21K9/68 ,  F21S41/176 ,  F21Y2115/10

    摘要： A light-emitting device includes a light-emitting element, a light-transmissive member, and a light adjustment member. The light adjustment member exposes a first upper surface and covers a second upper surface and a first lateral surface of the light-transmissive member. The light-transmissive member has a thickness from a lower surface to the first upper surface larger than a thickness from the lower surface to the second upper surface. In a plan view, first and second light-emitting regions have the first and second upper surfaces of the light-transmissive member, respectively, and an area of the second light-emitting region is in a range from 35% to 95% of an area of a light-emitting region. A boundary between the first and second light-emitting regions includes first and second points on a perimeter of a light-emitting region, and a straight line connecting the first and second points extends across the light-emitting region.