公开(公告)号：US20220013694A1

公开(公告)日：2022-01-13

申请号：US17485506

申请日：2021-09-27

Applicant: NICHIA CORPORATION

Inventor： Yuichi YAMADA ,  Motokazu YAMADA

IPC: H01L33/46 ,  H01L33/48 ,  H01L33/50 ,  H01L33/58 ,  H01L33/62

Abstract: A light emitting device includes a base including a support having a support surface. A light emitting element includes a semiconductor layer and a sapphire substrate provided on the semiconductor layer opposite to the support surface. A reflecting film provided on the sapphire substrate. A light-transmissive covering member is provided on the support surface. A height of the light-transmissive covering member viewed in a direction in which a width of the light-transmissive covering member appears smallest is 0.5 times or less of the width of the light-transmissive covering member. A light reflecting layer is provided on a first region of the base such that a first reflectivity in the first region of the base being higher than a second reflectivity in a second region of the base, the second region overlapping with the light emitting element and being surrounded by the first region as viewed in the height direction.

公开(公告)号：US20210384173A1

公开(公告)日：2021-12-09

申请号：US17382699

申请日：2021-07-22

Applicant: NICHIA CORPORATION

Inventor： Motokazu YAMADA ,  Yuichi YAMADA

IPC: H01L25/075 ,  H01L33/50 ,  H01L33/54 ,  H01L33/60 ,  H01L33/62 ,  G02F1/13357 ,  H01L33/46 ,  F21V7/00 ,  F21V9/08 ,  F21V23/00 ,  H01L33/58

Abstract: A light-emitting device includes a base including a conductive wiring; a light-emitting element mounted on the base and configured to emit light; a light reflective film provided on an upper surface of the light-emitting element; and a encapsulant covering the light-emitting element and the light reflective film. A ratio (H/W) of a height (H) of the encapsulant to a width (W) of a bottom surface of the encapsulant is less than 0.5.

公开(公告)号：US20210372591A1

公开(公告)日：2021-12-02

申请号：US17400001

申请日：2021-08-11

Applicant: NICHIA CORPORATION

Inventor： Motokazu YAMADA ,  Takeshi TAMURA ,  Hiroshi FUJIMORI

IPC: F21V7/22 ,  G02F1/13357 ,  F21V9/30 ,  F21V7/00 ,  F21V13/08

Abstract: A light emitting device includes: a mounting board; a plurality of light sources positioned on the mounting board; first and second prism array layers stacked with each other; a dichroic layer positioned between the first and second prism array layers and the plurality of light sources; and a wavelength conversion layer positioned between the first and second prism array layers and the dichroic layer.

公开(公告)号：US20210317971A1

公开(公告)日：2021-10-14

申请号：US17356238

申请日：2021-06-23

Applicant: NICHIA CORPORATION

Inventor： Takeshi TAMURA ,  Hiroshi FUJIMORI ,  Motokazu YAMADA

IPC: F21V13/08 ,  G02F1/13357 ,  H01L25/075 ,  F21V3/02 ,  F21V7/00 ,  F21V9/08

Abstract: A light emitting device includes a substrate, a plurality of light sources, a partitioning member and a diffuser sheet. The light sources are disposed on an upper surface of the substrate. The partitioning member is disposed on the upper surface of the substrate and including top parts. The partitioning member is reflective. The diffuser sheet is in contact with the top parts of the partitioning member.

公开(公告)号：US20200350472A1

公开(公告)日：2020-11-05

申请号：US16932178

申请日：2020-07-17

Applicant: NICHIA CORPORATION

Inventor： Motokazu YAMADA

IPC: H01L33/54 ,  H01L33/44 ,  H01L33/10

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-emitting 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.

公开(公告)号：US20190063723A1

公开(公告)日：2019-02-28

申请号：US16118056

申请日：2018-08-30

Applicant: NICHIA CORPORATION

Inventor： Motokazu YAMADA

IPC: F21V7/00 ,  H01L33/60 ,  H01L33/56 ,  H01L33/00 ,  H01L33/50 ,  H01L33/46

CPC classification number: F21V7/0083 ,  F21Y2105/10 ,  F21Y2115/10 ,  H01L25/0753 ,  H01L33/0075 ,  H01L33/46 ,  H01L33/50 ,  H01L33/56 ,  H01L33/60

Abstract: A light-emitting device includes a base member, a plurality of light sources on or above an upper surface of the base member, and a reflector that comprises a plurality of surrounding portions. Each of the plurality of surrounding portions surrounds a respective one of the plurality of light sources in a plan view. Each of the plurality of surrounding portions has inclined lateral surfaces widened upward. Intervals between adjacent ones of the plurality of light sources are constant in the plan view. Upper peripheries of the inclined lateral surfaces of each of the plurality of surrounding portions define an opening having a substantially rectangular shape. The plurality of surrounding portions include a plurality of first surrounding portions and a plurality of second surrounding portions surrounding the plurality of first surrounding portions. An area of the opening of each of the plurality of second surrounding portions is smaller than an area of the opening of each of the plurality of first surrounding portions.

公开(公告)号：US20180180255A1

公开(公告)日：2018-06-28

申请号：US15889205

申请日：2018-02-06

Applicant: NICHIA CORPORATION

Inventor： Motokazu YAMADA

IPC: F21V13/14 ,  F21V19/00 ,  F21V15/01 ,  F21V3/00 ,  F21V7/00 ,  F21V5/04 ,  F21V9/08

CPC classification number: F21V13/14 ,  F21V3/00 ,  F21V3/10 ,  F21V3/12 ,  F21V5/04 ,  F21V7/0083 ,  F21V7/22 ,  F21V9/08 ,  F21V9/30 ,  F21V15/01 ,  F21V19/005 ,  F21Y2113/13 ,  F21Y2115/10

Abstract: A light emitting device includes a base, light sources, wall portions, and a half mirror. The base has a light reflecting surface and has a first side on which the light reflecting surface is provided. The light sources are mounted on the first side of the base. Each of the wall portions surrounds each of the plurality of light sources. The half mirror is to reflect a part of incident light and to transmit another part of the incident light. The half mirror is disposed opposite to the base such that the light sources are provided between the half mirror and the base.

公开(公告)号：US20180180249A1

公开(公告)日：2018-06-28

申请号：US15853472

申请日：2017-12-22

Applicant: NICHIA CORPORATION

Inventor： Motokazu YAMADA ,  Yuichi YAMADA

IPC: F21V7/00 ,  F21K9/68 ,  H01L33/62 ,  H01L25/075 ,  H01L33/50 ,  H01L33/60 ,  H01L33/54

CPC classification number: F21V7/0083 ,  F21K9/68 ,  F21V3/00 ,  F21Y2115/10 ,  H01L25/0753 ,  H01L33/50 ,  H01L33/505 ,  H01L33/54 ,  H01L33/60 ,  H01L33/62 ,  H01L2224/16225

Abstract: A light-emitting device includes: a base member that comprises conductor wirings; a light-emitting element that is mounted on the base member and emits first light; a wavelength conversion member that is disposed on or above an upper surface of the light-emitting element and is adapted to absorb at least part of the first light and emit second light with a wavelength longer than a wavelength of the first light; a light-reflective film that is disposed on an upper surface of the wavelength conversion member; and an encapsulating member that covers the light-emitting element, the wavelength conversion member, and the light-reflective film. A ratio (H/W) of a height (H) to a width (W) of the encapsulating member is smaller than 0.5.

公开(公告)号：US20180123006A1

公开(公告)日：2018-05-03

申请号：US15845714

申请日：2017-12-18

Applicant: NICHIA CORPORATION

Inventor： Motokazu YAMADA ,  Ryota SENO ,  Kazuhiro KAMADA

IPC: H01L33/60 ,  H01L33/62 ,  H01L33/50 ,  H01L23/00 ,  H01L33/00 ,  H01L33/48 ,  H01L33/54 ,  H01L33/52 ,  H01L25/16 ,  H01L25/075

CPC classification number: H01L33/60 ,  H01L24/45 ,  H01L24/48 ,  H01L24/49 ,  H01L25/0753 ,  H01L25/167 ,  H01L33/005 ,  H01L33/483 ,  H01L33/486 ,  H01L33/50 ,  H01L33/52 ,  H01L33/54 ,  H01L33/62 ,  H01L2224/45015 ,  H01L2224/45124 ,  H01L2224/45144 ,  H01L2224/45147 ,  H01L2224/45169 ,  H01L2224/48137 ,  H01L2224/48139 ,  H01L2224/48227 ,  H01L2224/48228 ,  H01L2224/49175 ,  H01L2224/73204 ,  H01L2224/73265 ,  H01L2224/83192 ,  H01L2224/8592 ,  H01L2224/92247 ,  H01L2924/00014 ,  H01L2924/01004 ,  H01L2924/01005 ,  H01L2924/01006 ,  H01L2924/01012 ,  H01L2924/01013 ,  H01L2924/01014 ,  H01L2924/01024 ,  H01L2924/01025 ,  H01L2924/01028 ,  H01L2924/01029 ,  H01L2924/0103 ,  H01L2924/01032 ,  H01L2924/01033 ,  H01L2924/01038 ,  H01L2924/01042 ,  H01L2924/01045 ,  H01L2924/01047 ,  H01L2924/0105 ,  H01L2924/01058 ,  H01L2924/01063 ,  H01L2924/01065 ,  H01L2924/01074 ,  H01L2924/01077 ,  H01L2924/01078 ,  H01L2924/01079 ,  H01L2924/01082 ,  H01L2924/01322 ,  H01L2924/014 ,  H01L2924/09701 ,  H01L2924/12035 ,  H01L2924/12041 ,  H01L2924/12042 ,  H01L2924/12044 ,  H01L2924/181 ,  H01L2924/3025 ,  H01L2933/005 ,  H01L2924/00 ,  H01L2924/2076 ,  H01L2224/05599 ,  H01L2924/00012

Abstract: A light emitting device (100) includes a base member (101), electrically conductive members (102a, 102b) disposed on the base member (101), a light emitting element (104) mounted on the electrically conductive members (102a, 102b), an insulating filler (114) covering at least a portion of surfaces of the electrically conductive members (102a, 102b) where the light emitting element (104) is not mounted, and a light transmissive member (108) covering the light emitting element (104).

公开(公告)号：US20180023784A1

公开(公告)日：2018-01-25

申请号：US15648729

申请日：2017-07-13

Applicant: NICHIA CORPORATION

Inventor： Takeshi TAMURA ,  Hiroshi FUJIMORI ,  Motokazu YAMADA

IPC: F21V13/08 ,  F21V7/00 ,  F21V9/08 ,  F21V3/02

CPC classification number: F21V13/08 ,  F21V3/02 ,  F21V7/0083 ,  F21V9/08 ,  F21Y2115/10 ,  G02F1/133603 ,  G02F1/133608 ,  G02F1/133611 ,  G02F2001/133607 ,  H01L25/0753 ,  H01L33/60

Abstract: A light emitting device includes a mounting board on which a plurality of light sources are disposed; a partitioning member surrounding the light sources and including a plurality of walls that include top parts and form a plurality of areas; a diffuser sheet that is provided above the partitioning member and is supported directly or indirectly by at least one of the top parts of the partitioning member; a plurality of first reflectors that are provided directly above the light sources and are positioned on one of an upper surface and a lower surface of the diffuser sheet; and a second reflector that is provided directly above the top parts and is positioned on one of the upper surface and the lower surface of the diffuser sheet.