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

    公开(公告)号：US10763412B2

    公开(公告)日：2020-09-01

    申请号：US16536325

    申请日：2019-08-09

    Applicant: NICHIA CORPORATION

    Inventor： Kenji Ozeki ,  Shimpei Maeda

    IPC: H01L33/00 ,  H01L33/60 ,  H01L33/54 ,  H01L25/075 ,  H01L33/50 ,  H01L33/56 ,  H01L33/62

    Abstract: A light emitting device includes light emitting elements having light extraction faces, respectively. A light transmissive member includes a lower face facing the light extraction faces, an upper face opposite to the lower face in a height direction, and first to fourth side faces that are connected to the lower face and the upper face. An area of the lower face is larger than a sum of areas of the light extraction faces. An area of the upper face is smaller than the area of the lower face. The second side face is substantially parallel to the first side face. The third side face and the fourth side face are provided between the first side face and the second side face and opposite to each other. The third side face and the fourth side face approach as approaching from the lower face to the upper face in the height direction.

    Method of producing light-emitting device
    2.
    发明授权
    Method of producing light-emitting device 有权

    公开(公告)号：US11469344B2

    公开(公告)日：2022-10-11

    申请号：US17161365

    申请日：2021-01-28

    Applicant: NICHIA CORPORATION

    Inventor： Shimpei Maeda

    IPC: H01L33/00 ,  H01L25/075

    Abstract: A method for producing a light-emitting device includes: bonding a plurality of light-emitting elements to a plate-shaped light transmission member all at once with the plurality of light-emitting elements being arranged in a two-dimensional array extending in a first direction and a second direction; capturing an image of the plurality of light-emitting elements bonded to the light transmission member, and forming an alignment mark on the light transmission member based on positions in the image of the plurality of light-emitting elements; and after the forming of the alignment mark, forming a contact member in contact with a corresponding one of the plurality of light-emitting elements with the contact member being positioned with respect to the plurality of light-emitting elements by using the alignment mark.

    Light emitting device with large phosphor area and method for manufacturing same
    4.
    发明授权
    Light emitting device with large phosphor area and method for manufacturing same 有权

    公开(公告)号：US10424705B2

    公开(公告)日：2019-09-24

    申请号：US15800072

    申请日：2017-11-01

    Applicant: NICHIA CORPORATION

    Inventor： Kenji Ozeki ,  Shimpei Maeda

    IPC: H01L33/00 ,  H01L33/60 ,  H01L25/075 ,  H01L33/50 ,  H01L33/56 ,  H01L33/62 ,  H01L33/54

    Abstract: A light emitting device includes a light emitting element, a first light transmissive member, and a second light transmissive member. A first lower face of the first light transmissive member is bonded to a light extraction face of the light emitting element and has a first lower face perimeter positioned outside of a light extraction face perimeter of the light extraction face when viewed in a height direction of the light emitting device. A second lower face of the second light transmissive member has a second lower face perimeter that coincides with or is inside of the first upper face perimeter when viewed in the height direction. A second upper face of the second light transmissive member is positioned inside of the first upper face perimeter when viewed in the height direction.

    Light emitting device having first and second wavelength converter parts
    5.
    发明授权
    Light emitting device having first and second wavelength converter parts 有权
    具有第一和第二波长转换器部分的发光器件

    公开(公告)号：US09577161B2

    公开(公告)日：2017-02-21

    申请号：US14870009

    申请日：2015-09-30

    Applicant: NICHIA CORPORATION

    Inventor： Daisuke Sato ,  Atsushi Hashizume ,  Toshiki Nishihama ,  Shimpei Maeda

    IPC: H01L33/50 ,  H01L33/58 ,  H01L33/60 ,  H01L25/16 ,  H01L33/52

    CPC classification number: H01L33/505 ,  H01L25/167 ,  H01L33/504 ,  H01L33/508 ,  H01L33/52 ,  H01L33/58 ,  H01L33/60 ,  H01L2224/16225 ,  H01L2224/73253 ,  H01L2924/0002 ,  H01L2924/10155 ,  H01L2924/181 ,  H01L2933/0041 ,  H01L2933/0058 ,  H01L2924/00012 ,  H01L2924/00

    Abstract: The light emitting device includes a light emitting element, a wavelength converter, and a light guider. The light emitting element has an element upper surface, an element lower surface, and an element side surface. The wavelength converter has a converter lower surface. The wavelength is provided to be connected to the light emitting element. The converter lower surface has an exposed region that does not face the element upper surface. The light guider guides light from the light emitting element to the wavelength converter. The light guider covers the element side surface and the exposed region. The wavelength converter includes first and second wavelength converter parts. The first wavelength converter part faces the element upper surface and has a first thickness. The second wavelength converter part does not face the element upper surface and has a second thickness thinner than the first thickness.

    Abstract translation: 发光器件包括发光元件，波长转换器和光引导器。 发光元件具有元件上表面，元件下表面和元件侧表面。 波长转换器具有转换器下表面。 提供波长以连接到发光元件。 转换器下表面具有不面向元件上表面的暴露区域。 光导向器将来自发光元件的光引导到波长转换器。 导光板覆盖元件侧表面和暴露区域。 波长转换器包括第一和第二波长转换器部分。 第一波长转换器部分面向元件上表面并具有第一厚度。 第二波长转换器部分不面对元件上表面，并且具有比第一厚度薄的第二厚度。

    Method for manufacturing light emitting device
    6.
    发明授权
    Method for manufacturing light emitting device 有权

    公开(公告)号：US11309467B2

    公开(公告)日：2022-04-19

    申请号：US16940392

    申请日：2020-07-28

    Applicant: NICHIA CORPORATION

    Inventor： Kenji Ozeki ,  Shimpei Maeda

    IPC: H01L33/00 ,  H01L33/60 ,  H01L33/54 ,  H01L25/075 ,  H01L33/50 ,  H01L33/56 ,  H01L33/62

    Abstract: A method for manufacturing a light emitting device includes preparing a light transmissive member block including a first light transmissive member block having a plate like shape and including a resin containing at least one phosphor and a second light transmissive member block including a material harder than a material of the first light transmissive member block. Grooves are formed on an upper face of the second light transmissive member block. The light transmissive member block is divided at the grooves to obtain a plurality of light transmissive members each having a first light transmissive member and a second light transmissive member. A lower face of the first light transmissive member and an upper face of a light emitting element are bonded together such that a lower face perimeter of the first light transmissive member is located outside of an upper face perimeter of the light emitting element.

    Method of manufacturing light emitting device
    7.
    发明授权
    Method of manufacturing light emitting device 有权

    公开(公告)号：US10714663B2

    公开(公告)日：2020-07-14

    申请号：US15909877

    申请日：2018-03-01

    Applicant: NICHIA CORPORATION

    Inventor： Daisuke Sato ,  Atsushi Hashizume ,  Toshiki Nishihama ,  Shimpei Maeda

    IPC: H01L33/50 ,  H01L33/60 ,  H01L33/58 ,  H01L25/16 ,  H01L33/52

    Abstract: A method of manufacturing a light emitting device, includes providing a light emitting element having an element upper surface, an element lower surface opposite to the element upper surface in a thickness direction of the light emitting element, and an element side surface between the element upper surface and the element lower surface. A wavelength converter having a converter lower surface is provided. The wavelength converter is joined to the light emitting element using an adhesive so that the converter lower surface faces the element upper surface. The converter lower surface has an exposed region that does not face the element upper surface viewed along the thickness direction. The adhesive covers the element side surface and the exposed region.

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