公开(公告)号：US20220173285A1

公开(公告)日：2022-06-02

申请号：US17456556

申请日：2021-11-24

Applicant: NICHIA CORPORATION

Inventor： Shimpei SASAOKA ,  Toshiyuki HASHIMOTO ,  Toshinobu KATSUMATA ,  Naoya KASHIWAGI

IPC: H01L33/54 ,  H01L33/00 ,  H01L33/56 ,  H01L33/48

Abstract: A method for manufacturing a light emitting device according to the present invention includes: providing an intermediate member including: a support member including: housing portions, the housing portions having first recessed portion(s) each having a lateral wall and a bottom surface, and a coupling portion located between adjacent ones of the housing portions and having a height lower than a height of the lateral wall with reference to the bottom surface of the first recessed portion, a light source mounted on the bottom surface of the first recessed portion, and an encapsulant disposed in the first recessed portion; and forming a first light-transmissive member continuously covering the housing portions and the coupling portion. An inclined surface of the first light-transmissive member has a height above the coupling portion is lower than a height above the housing portions with reference to the bottom surface of the first recessed portion.

公开(公告)号：US20230367153A1

公开(公告)日：2023-11-16

申请号：US18360747

申请日：2023-07-27

Applicant: NICHIA CORPORATION

Inventor： Toshiyuki HASHIMOTO ,  Shimpei SASAOKA

IPC: G02F1/13357

CPC classification number: G02F1/133611 ,  G02F1/133603 ,  G02F1/133608 ,  G02F1/133605 ,  B60K35/00

Abstract: A light source device includes light sources arranged on a substrate in a matrix, and a reflective member. The reflective member includes first walls respectively surrounding the light sources, and defining first regions, and second walls located on an outer side of the first walls, and defining second regions each having an opening facing outside of the reflective member. The reflective member defines a pair of first sides parallel to one of a vertical direction and a lateral direction in a plan view, the pair of first sides being constituted by a part of the reflective member including at least one of the first walls and the first regions, and a second side inclined or curved with respect to the pair of first sides, the second side being constituted by a part of the reflective member including at least one of the second walls and the second regions.

公开(公告)号：US20180269366A1

公开(公告)日：2018-09-20

申请号：US15924079

申请日：2018-03-16

Applicant: NICHIA CORPORATION

Inventor： Hironao OKU ,  Toshiyuki HASHIMOTO ,  Mitsuhiro ISONO ,  Takao ISHIHARA ,  Takaaki KATO

IPC: H01L33/60 ,  H01L33/48 ,  H01L33/62 ,  H01L33/64 ,  H01L23/60 ,  H01L29/866 ,  H01L25/16

CPC classification number: H01L33/60 ,  H01L23/60 ,  H01L25/167 ,  H01L29/866 ,  H01L33/486 ,  H01L33/62 ,  H01L33/645 ,  H01L2933/0033

Abstract: A light-emitting device includes: a resin package including: a lead part including a first lead and a second lead, each including a main body portion and a raised portion connected to the main body portion, wherein an upper surface of each of the first lead and the second lead includes a first primary surface portion in the main body portion and a curved portion in the raised portion in a cross-sectional view taken in a direction perpendicular to an upper surface of the lead part, and wherein the curved portion is continuous with and curved upward from an end portion of the first primary surface portion, a resin portion, and a recess defined by a portion of the upper surface of the lead part and the resin portion; and a light-emitting element mounted in the resin package. The curved portion is buried in the resin portion.

公开(公告)号：US20180269137A1

公开(公告)日：2018-09-20

申请号：US15924071

申请日：2018-03-16

Applicant: NICHIA CORPORATION

Inventor： Hironao OKU ,  Toshiyuki HASHIMOTO ,  Mitsuhiro ISONO ,  Takao ISHIHARA ,  Takaaki KATO

IPC: H01L23/495 ,  H01L33/62 ,  H01L33/64

Abstract: A lead frame includes: a plurality of units each including a first lead portion and a second lead portion arranged in a first direction, wherein the units are arranged in the first direction and in a second direction perpendicular to the first direction, and the first lead portion and the second lead portion of each unit are adjacent, in the second direction, to the first lead portion and the second lead portion of an adjacent one of the units that is adjacent in the second direction; a plurality of first suspension portions; and a plurality of connecting portions. Each of the first suspension portions connects, in the second direction, the first lead portions of units that are adjacent to each other in the second direction.

公开(公告)号：US20220308272A1

公开(公告)日：2022-09-29

申请号：US17702415

申请日：2022-03-23

Applicant: NICHIA CORPORATION

Inventor： Toshiyuki HASHIMOTO ,  Naoya KASHIWAGI ,  Toshinobu KATSUMATA

IPC: G02B5/09

Abstract: A light-reflecting member includes a plurality of first regions and a plurality of second regions. The first regions are each defined by a first portion and a plurality of first wall portions surrounding the first portion in a plan view with the first wall portions being connected to the first portion. The first regions are arranged in a tessellation in the plan view. The second regions are arranged on an outer side relative to the first regions in the plan view. Each of the second regions includes a second portion located higher than the first portion of each of the first regions. The second portion is connected to at least one second wall portion on a side closer to an adjacent one of the first regions, the at least one second wall portion having a height smaller than a height of the first wall portion as measured from the first portion.

公开(公告)号：US20220269137A1

公开(公告)日：2022-08-25

申请号：US17741063

申请日：2022-05-10

Applicant: NICHIA CORPORATION

Inventor： Toshiyuki HASHIMOTO ,  Shimpei SASAOKA

IPC: G02F1/13357

Abstract: A light source device includes a plurality of light sources, a substrate on which the light sources are arranged, and a reflective member arranged on the substrate via an adhesive member. The reflective member defines a plurality of through holes. The light sources are respectively disposed inside the through holes in a plan view. The adhesive member is light-reflective.

公开(公告)号：US20220357619A1

公开(公告)日：2022-11-10

申请号：US17869682

申请日：2022-07-20

Applicant: NICHIA CORPORATION

Inventor： Toshinobu KATSUMATA ,  Toshiyuki HASHIMOTO ,  Naoya KASHIWAGI

IPC: G02F1/13357

Abstract: A planar light source includes a mounting substrate, a plurality of light sources, a partition member, a frame body, a wavelength conversion member, and a light diffusion plate. The light sources are arranged two-dimensionally on the mounting substrate in a plan view. The partition member includes a wall portion surrounding each of the light sources except for outermost ones of the light sources in the plan view. The wall portions are located inward of the outermost ones of the light sources. The frame body has a bottom portion and a lateral wall surrounding the mounting substrate. The wavelength conversion member is disposed on the lateral wall of the frame body. The light diffusion plate is disposed above the plurality of light sources and the wavelength conversion member.

公开(公告)号：US20200161516A1

公开(公告)日：2020-05-21

申请号：US16689484

申请日：2019-11-20

Applicant: NICHIA CORPORATION

Inventor： Shimpei SASAOKA ,  Toshiyuki HASHIMOTO ,  Toshinobu KATSUMATA ,  Yoshihiro SHO

IPC: H01L33/58 ,  G02B5/18 ,  H01L33/50 ,  H01L25/075

Abstract: A light emitting device includes a substrate, a demarcating member and a light-diffusing plate. The substrate has a plurality of light sources. The demarcating member includes a plurality of wall parts defining a plurality of compartments respectively corresponding to the light sources with each of the light sources being surrounded by corresponding ones of the wall parts defining a single compartment. Each of the wall parts include a ridge part and an inclined surface part. The light-diffusing plate is disposed above the light sources and having a plurality of first protrusions disposed on a first surface of the light-diffusing plate facing the substrate. Each of the first protrusions overlaps the inclined surface part of each of corresponding ones of the wall parts in a plan view. Each of the first protrusions surrounds a corresponding one of the light sources in the plan view.

公开(公告)号：US20180374782A1

公开(公告)日：2018-12-27

申请号：US16105756

申请日：2018-08-20

Applicant: NICHIA CORPORATION

Inventor： Hironao OKU ,  Toshiyuki HASHIMOTO ,  Mitsuhiro ISONO ,  Takao ISHIHARA ,  Takaaki KATO

IPC: H01L23/495 ,  H01L33/64 ,  H01L33/62 ,  H01L21/48

CPC classification number: H01L23/49541 ,  H01L21/4821 ,  H01L21/4842 ,  H01L21/565 ,  H01L23/49551 ,  H01L23/49568 ,  H01L23/52 ,  H01L33/486 ,  H01L33/62 ,  H01L33/647 ,  H01L2224/48247 ,  H01L2224/48257 ,  H01L2224/73265 ,  H01L2224/97

Abstract: A lead frame includes: a plurality of units each including a first lead portion and a second lead portion arranged in a first direction, wherein the units are arranged in the first direction and in a second direction perpendicular to the first direction, and the first lead portion and the second lead portion of each unit are adjacent, in the second direction, to the first lead portion and the second lead portion of an adjacent one of the units that is adjacent in the second direction; a plurality of first suspension portions; and a plurality of connecting portions. Each of the first suspension portions connects, in the second direction, the first lead portions of units that are adjacent to each other in the second direction.

公开(公告)号：US20180341152A1

公开(公告)日：2018-11-29

申请号：US15986738

申请日：2018-05-22

Applicant: NICHIA CORPORATION

Inventor： Ryohei YAMASHITA ,  Shimpei SASAOKA ,  Toshiyuki HASHIMOTO

IPC: G02F1/1335 ,  H01L25/075 ,  H01L33/50 ,  H01L33/60 ,  H01L33/62

CPC classification number: G02F1/133611 ,  G02F1/133603 ,  G02F1/133605 ,  G02F1/133606 ,  G02F2001/133607 ,  H01L25/0753 ,  H01L33/502 ,  H01L33/60 ,  H01L33/62

Abstract: A light-emitting device includes: a base having an upper surface; a plurality of light sources located on the upper surface of the base; a first lenticular lens sheet disposed to face the base with the light sources between the first lenticular lens sheet and the base, the first lenticular lens sheet including a first plurality of grooves; a half mirror located on an upper surface side of the first lenticular lens sheet; and a second lenticular lens sheet disposed on an upper surface side of the half mirror, wherein the second lenticular lens sheet includes a second plurality of grooves extending in a direction that intersects a direction in which the first plurality of grooves of the first lenticular lens sheet extend.