公开(公告)号：US12176468B2

公开(公告)日：2024-12-24

申请号：US18332824

申请日：2023-06-12

Applicant: NICHIA CORPORATION

Inventor： Toru Hashimoto

IPC: H01L33/50 ,  H01L33/58 ,  H01L33/60

Abstract: A light emitting device includes a light emitting element, a light guide member, a reflecting member, a wavelength conversion member. The light emitting element has a light emitting surface and lateral surfaces. The light guiding member is provided on at least a portion of the lateral surfaces of the light emitting element. The reflecting member is provided on the lateral surface of the light emitting element with the light guiding member interposed therebetween. The wavelength conversion member is provided on the light emitting surface of the light emitting element, the light guiding member and the reflecting member. The wavelength conversion member is provided with a recess between an outer lateral surface of the wavelength conversion member and the light guiding member. The reflecting member is provided in the recess.

公开(公告)号：US11990560B2

公开(公告)日：2024-05-21

申请号：US17860664

申请日：2022-07-08

Applicant: NICHIA CORPORATION

Inventor： Toru Hashimoto ,  Masato Aihara

IPC: H01L27/15 ,  H01L25/075 ,  H01L29/26 ,  H01L31/12 ,  H01L33/00 ,  H01L33/60 ,  H01L33/62

CPC classification number: H01L33/0095 ,  H01L25/0753 ,  H01L33/60 ,  H01L33/62 ,  H01L2933/0058 ,  H01L2933/0066

Abstract: A light-emitting device includes: a structure including: a layered body including: a light-emitting element comprising a pair of electrodes, and a light-transmissive member disposed on the light-emitting element; and a light-reflective member covering lateral surfaces of the layered body, in which structure has a first surface at which the pair of electrodes are exposed from the light-reflective member, and a second surface connected to the first surface, the second surface being a surface of the light-reflective member. A pair of first electrically conductive films disposed on the first surface of the structure such that each of the pair of first electrically conductive films is connected to a respective one of the pair of electrodes. A pair of second electrically conductive films disposed on the second surface of the structure, each of the pair of electrically conductive films being continuous with the pair of first electrically conductive films.

公开(公告)号：US11886078B2

公开(公告)日：2024-01-30

申请号：US17304548

申请日：2021-06-22

Applicant: NICHIA CORPORATION

Inventor： Toru Hashimoto

IPC: G02F1/13357 ,  H01L25/075 ,  H01L33/36 ,  H01L33/50 ,  H01L33/56 ,  H01L33/62 ,  H01L33/58 ,  H01L33/32 ,  F21V8/00 ,  G02F1/1335

CPC classification number: G02F1/133611 ,  G02F1/133603 ,  G02F1/133606 ,  H01L25/0753 ,  H01L33/36 ,  H01L33/507 ,  H01L33/56 ,  H01L33/58 ,  H01L33/62 ,  G02B6/0021 ,  G02B6/0023 ,  G02F1/133601 ,  G02F1/133607 ,  G02F1/133612 ,  G02F1/133614 ,  H01L33/32 ,  H01L2933/005 ,  H01L2933/0041 ,  H01L2933/0058 ,  H01L2933/0066

Abstract: The method of manufacturing a light emitting module includes: providing a light guiding plate having a first main surface serving as a light emitting surface; and a second main surface positioned opposite to the first main surface and provided with a recess; providing a light adjustment portion containing a fluorescent material; providing a light emitting element unit in which a light emitting element comprising an electrode is integrally bonded to the light adjustment portion; bonding the light adjustment portion of the light emitting element unit to the recess; and forming wiring on the electrode of the light emitting element.

公开(公告)号：US11536439B2

公开(公告)日：2022-12-27

申请号：US17163485

申请日：2021-01-31

Applicant: NICHIA CORPORATION

Inventor： Takuya Nakabayashi ,  Toru Hashimoto

IPC: F21V9/30 ,  F21V8/00 ,  G02F1/13357 ,  F21Y105/16 ,  G02F1/1335

Abstract: A planar light source includes a light guide member having a through hole, a light source, a first light adjusting member, a second light adjusting member, and a light transmissive member. The first light adjusting member having reflectivity and transmissivity with respect to light from the light source is disposed on or above an upper face of the light source in the through hole. The second light adjusting member having reflectivity and transmissivity with respect to the light from the light source is disposed above and apart from the first light adjusting member. The first light transmissive member having a higher transmissivity with respect to the light from the light source than the transmissivities of the first and second light adjusting members is disposed between the first light adjusting member and the second light adjusting member, and between a lateral face of the light source and the light guide member.

公开(公告)号：US11506937B2

公开(公告)日：2022-11-22

申请号：US17337030

申请日：2021-06-02

Applicant: NICHIA CORPORATION

Inventor： Yasunori Shinomiya ,  Toru Hashimoto

IPC: G02F1/1335 ,  F21V23/00 ,  F21V33/00 ,  F21V8/00 ,  F21Y105/16

Abstract: A planar light source includes a wiring substrate including an insulating layer comprising a first through-hole, a second through-hole, a first wiring layer, and a second wiring layer; a light source including a first electrode and a second electrode, a light guide member; a first wiring member including a first portion filling the first through-hole and electrically connected to the first electrode and a second portion disposed below the insulating layer, continuous with the first portion, and in contact with the first wiring layer; and a second wiring member including a third portion filling the second through-hole and electrically connected to the second electrode and a fourth portion disposed below the insulating layer, continuous with the third portion, and in contact with the second wiring layer. The first and second wiring layers are arranged at opposite sides of the first and second through-holes in a top plan view.

公开(公告)号：US11489098B2

公开(公告)日：2022-11-01

申请号：US16670585

申请日：2019-10-31

Applicant: NICHIA CORPORATION

Inventor： Shinichi Daikoku ,  Toru Hashimoto

IPC: H01L33/54 ,  H01L33/62 ,  H01L33/48 ,  H01L33/60 ,  F21V8/00

Abstract: The light emitting device includes a light emitting element having an electrode-formed surface on which electrode posts are formed; a covering member covering the electrode-formed surface and lateral surfaces of the light emitting element while forming an exposure portion of each of the electrode posts which are exposed from the covering member; a pair of electrode layers provided on a surface of the covering member and electrically connected to the exposed portions of the electrode posts; and a pair of electrode terminals which are respectively electrically connected to the electrode layers, having a surface area larger than a surface area of the electrode posts, and having an outer edge positioned at an end portion of the covering member; and an insulating member provided between the pair of the electrode terminals while being in contact with lateral surfaces of the pair of electrode terminals.

公开(公告)号：US10553765B2

公开(公告)日：2020-02-04

申请号：US15785877

申请日：2017-10-17

Applicant: NICHIA CORPORATION

Inventor： Toru Hashimoto ,  Takahiro Amo

IPC: H01L33/62 ,  H01L33/50 ,  H01L33/48 ,  H01L33/56 ,  H01L33/54 ,  H01L33/60

Abstract: A method for manufacturing a light emitting device includes: providing a substrate; placing a light emitting element on a top surface of the substrate; arranging on the top surface of the substrate a translucent frame body that is spaced apart from the light emitting element and that surrounds the light emitting element so that a top surface of the translucent frame body is at a position higher than a top surface of the light emitting element; arranging a wavelength conversion member in a region surrounded by the translucent frame body so as to cover the top surface and a side surface of the light emitting element and to be in contact with an inside surface of the frame body; and forming a translucent member that covers the substrate, the translucent frame body, and the wavelength conversion member.

公开(公告)号：US10396253B2

公开(公告)日：2019-08-27

申请号：US15938349

申请日：2018-03-28

Applicant: NICHIA CORPORATION

Inventor： Toru Hashimoto ,  Takao Fukumochi

IPC: H01L33/50 ,  H01L33/60 ,  H01L33/52 ,  H01L33/00 ,  H01L33/58

Abstract: A method for manufacturing a light-emitting device includes: scraping at least one lateral surface of a light-transmissive member disposed on a light-emitting element mounted on a substrate to shape the light-transmissive member; and spraying sublimating particles toward at least one of the substrate, the light-emitting element, or the light-transmissive member.

公开(公告)号：US10186646B2

公开(公告)日：2019-01-22

申请号：US15826568

申请日：2017-11-29

Applicant: NICHIA CORPORATION

Inventor： Toru Hashimoto

IPC: H01L33/60 ,  H01L33/50 ,  H01L33/54

Abstract: A method for manufacturing at last one light-emitting device including a light-transmissive member, a light-emitting element, and a reflective member, the method including: providing a holding member comprising a plurality of through-holes or recesses; disposing a light-transmissive member in at least one of the through-holes or at least one of the recesses; disposing a light-emitting element on the light-transmissive member in the at least one through-hole or the at least one recess; forming a reflective member in contact with a lateral surface defining the at least one through-hole or the at least one recess and covering a lateral surface of the light-emitting element; and removing the at least one light-emitting device from the holding member.

公开(公告)号：US10153410B2

公开(公告)日：2018-12-11

申请号：US15899304

申请日：2018-02-19

Applicant: NICHIA CORPORATION

Inventor： Toru Hashimoto

IPC: H01L33/54 ,  H01L33/50 ,  C09K11/08 ,  C09K11/61 ,  C09K11/77 ,  H01L33/00 ,  H01L33/60 ,  H01L33/62 ,  H01L33/56

Abstract: A method of manufacturing a light-emitting device includes flip-chip mounting a plurality of light-emitting elements on a substrate separately from each other. A light-transmissive member is bonded on the plurality of light-emitting elements. The light-transmissive member includes a matrix and a manganese-activated fluoride fluorescent material that functions as a wavelength conversion member. A lateral surface of the light-transmissive member is exposed between at least one pair of the plurality of light-emitting elements that are adjacent with each other. A light-reflective covering member is provided on the substrate to cover the lateral surface and a top surface of the light-transmissive member. A portion of the light-reflective covering member that is located on a top surface of the light-reflective covering member is removed to expose the light-transmissive member. The substrate and the light-reflective covering member are cut to yield individual pieces of light-emitting devices.