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公开(公告)号：US10529700B2
公开(公告)日：2020-01-07
申请号：US16100210
申请日：2018-08-10
Applicant: NICHIA CORPORATION
Inventor： Kimihiro Miyamoto , Atsushi Bando , Naofumi Sumitani , Akira Otani
IPC: H01L25/16 , H01L33/60 , H01L25/075 , H01L33/54 , H01L33/48 , H01L33/50 , H01L33/56 , H01L33/62 , H01L29/866
Abstract: A light emitting device includes a package having a recess which includes a bottom surface having corners. The package includes a first electrode, a second electrode, and a resin portion. The first electrode is provided at a first part of the bottom surface. The second electrode is provided at a second part of the bottom surface. The resin portion is provided between the first electrode and the second electrode at a third part of the bottom surface. A protection element is provided on the bottom surface. A light reflective material covers the bottom surface except for an uncovered region to cover the protection element and the corners of the bottom surface and uncovers an uncovering region of the bottom surface. The uncovered region is defined by linear lines and curved lines connecting the linear lines. A light emitting element is provided in the uncovered region on the bottom surface.
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公开(公告)号：US09859480B2
公开(公告)日：2018-01-02
申请号：US15241075
申请日：2016-08-19
Applicant: NICHIA CORPORATION
Inventor： Ryoji Naka , Atsushi Bando , Tomohide Miki , Kimihiro Miyamoto
CPC classification number: H01L33/56 , H01L25/0753 , H01L33/08 , H01L33/48 , H01L33/486 , H01L33/52 , H01L33/60 , H01L33/62 , H01L2224/48091 , H01L2224/48137 , H01L2224/48247 , H01L2224/48257 , H01L2224/48465 , H01L2224/8592 , H01L2933/005 , H01L2933/0058 , H01L2933/0066 , H01L2924/00014 , H01L2924/00
Abstract: A light emitting device includes a package, at least one light emitting element, a light-transmissive resin, and a light reflecting resin. The package has a recess which includes a bottom surface and an inner peripheral surface. The bottom surface includes a light emitting element mounting region and a groove. The groove has an inner peripheral edge and an outer peripheral edge on the bottom surface to define the groove between the inner peripheral edge and the outer peripheral edge. The at least one light emitting element is mounted on the light emitting element mounting region. The light-transmissive resin is provided in the recess to cover the at least one light emitting element and to be in contact with the groove. The light reflecting resin is provided between the inner peripheral surface of the recess and the light-transmissive resin to reach the outer peripheral edge of the groove.
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公开(公告)号：US10950764B2
公开(公告)日：2021-03-16
申请号：US16200635
申请日：2018-11-26
Applicant: NICHIA CORPORATION
Inventor： Atsushi Bando , Kazuya Matsuda
IPC: H01L25/075 , H01L33/54 , H01L33/48 , H01L33/50 , H01L33/56 , H01L33/60 , H01L33/62 , H01L33/64 , H01L25/16 , H01L27/02
Abstract: A light-emitting device includes: a first light-emitting element and a second light-emitting element, each having a peak emission wavelength in a range of 430 nm to 480 nm; and a sealing member covering the first light-emitting element and the second light-emitting element, the sealing member containing a first fluorescent material. The first light-emitting element and the second light-emitting element are configured to be individually driven. The sealing member includes a protruding portion at an upper surface thereof. The first light-emitting element is disposed in a first region, which is located under the protruding portion. The second light-emitting element is disposed in a second region, which is located under the upper surface of the sealing member at a position different from the first region.
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公开(公告)号：US10153411B2
公开(公告)日：2018-12-11
申请号：US15823575
申请日：2017-11-28
Applicant: NICHIA CORPORATION
Inventor： Ryoji Naka , Atsushi Bando , Tomohide Miki , Kimihiro Miyamoto
Abstract: A light emitting device includes a package having a recess which includes a bottom surface and an inner peripheral surface around a periphery of the bottom surface. The package includes a first lead to define a first part of the bottom surface, a second lead to define a second part of the bottom surface, and a resin body to provide the inner peripheral surface and a remaining part of the bottom surface. The bottom surface includes a light emitting element mounting region in the first part and a groove surrounding the light emitting element mounting region. A light emitting element is mounted on the light emitting element mounting region. A light-transmissive resin is provided in the recess to be in at least a part of a groove surface. A light reflecting resin is provided between the inner peripheral surface of the recess and the light-transmissive resin.
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公开(公告)号：US09966515B2
公开(公告)日：2018-05-08
申请号：US15388568
申请日：2016-12-22
Applicant: NICHIA CORPORATION
Inventor： Ryoji Naka , Atsushi Bando
CPC classification number: H01L33/60 , H01L25/0753 , H01L33/0095 , H01L33/32 , H01L33/486 , H01L33/62 , H01L2224/48247 , H01L2224/73265 , H01L2933/0033 , H01L2933/0058 , H01L2933/0066
Abstract: A method of manufacturing a plurality of light emitting devices includes providing a collective substrate including a plurality of packages, each of the packages including: a recess defined by lateral surfaces and a bottom surface, a first electrode and a second electrode that are disposed at the bottom surface of the recess, and a light-reflective first resin member surrounding an element-mounting region of the bottom surface of the recess, the first resin member having an upper surface located at a position higher than the element-mounting region; mounting a light emitting element in the element-mounting region; forming a light-reflective second resin member having a light reflective surface; and singulating the collective substrate to obtain the plurality of light emitting devices.
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Patent Agency Ranking
公开(公告)号：US09502623B1
公开(公告)日：2016-11-22
申请号：US14873336
申请日：2015-10-02
Applicant: NICHIA CORPORATION
Inventor： Kimihiro Miyamoto , Atsushi Bando , Naofumi Sumitani , Akira Otani
CPC classification number: H01L25/167 , H01L25/0753 , H01L29/866 , H01L33/486 , H01L33/507 , H01L33/54 , H01L33/56 , H01L33/60 , H01L33/62 , H01L2224/48247 , H01L2224/48257 , H01L2224/73265 , H01L2224/8592 , H01L2924/181 , H01L2924/00012
Abstract: A light emitting device includes a base structure, a wall, a light emitting element, a protection element, and a light reflective portion. The wall includes an inner peripheral surface defining an opening. The opening has a substantially polygonal shape in a planar view of the light emitting device. The light reflective portion has a maximum length which is longest in the light reflective portion. The maximum length is defined at a maximum-length position closest to the first corner among a plurality of positions defined in the light reflective portion. The light reflective portion has a minimum length which is shortest in the light reflective portion. The minimum length is defined at a minimum-length position arranged apart from the maximum-length position. The light reflective portion includes an inclined surface extending from the maximum-length position to the minimum-length position.
Abstract translation: 发光器件包括基底结构，壁，发光元件，保护元件和光反射部分。 壁包括限定开口的内周表面。 该开口在发光装置的平面图中具有大致多边形形状。 光反射部分在光反射部分中具有最长的最大长度。 最大长度被限定在在光反射部分中限定的多个位置中最靠近第一角的最大长度位置处。 光反射部分具有在光反射部分中最短的最小长度。 最小长度被限定在与最大长度位置分开布置的最小长度位置处。 光反射部分包括从最大长度位置延伸到最小长度位置的倾斜表面。
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公开(公告)号：US12074262B2
公开(公告)日：2024-08-27
申请号：US17489475
申请日：2021-09-29
Applicant: NICHIA CORPORATION
Inventor： Kazuya Matsuda , Atsushi Bando
CPC classification number: H01L33/504 , H01L33/507 , H01L33/54 , H01L33/62
Abstract: A light-emitting device includes: a first light-emitting element and a second light-emitting element, each configured to be independently driven; a wall portion located between the first light-emitting element and the second light-emitting element; a first light-transmissive member separated from the second light-emitting element by the wall portion and covering at least a portion of lateral surfaces of the first light-emitting element, wherein the first light-transmissive member contains a first wavelength converting member; and a second light-transmissive member covering the first light-emitting element, the second light-emitting element, and the first light-transmissive member in a plan view, wherein the second light-transmissive member contains a second wavelength converting member. A peak emission wavelength of the first wavelength converting member is longer than a peak emission wavelength of the second wavelength converting member.
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公开(公告)号：US11094676B2
公开(公告)日：2021-08-17
申请号：US16597262
申请日：2019-10-09
Applicant: NICHIA CORPORATION
Inventor： Hiroaki Ukawa , Atsushi Bando
Abstract: A light-emitting device includes: a first light source including a first light-emitting element having a peak emission wavelength in a range of 430 nm to 480 nm; a second light source including a second light-emitting element having a peak emission wavelength in a range of 430 nm to 480 nm; a third light source; and an encapsulant containing a phosphor. In a 1931 CIE chromaticity diagram, the light-emitting device has: a first chromaticity point when only the first light source is operated, a second chromaticity point different from the first chromaticity point when only the second light source is operated, and a third chromaticity point when only the third light source is operated, the third chromaticity point having a y-value larger than a y-value on a straight line passing the first chromaticity point and the second chromaticity point.
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公开(公告)号：US09831396B2
公开(公告)日：2017-11-28
申请号：US14853311
申请日：2015-09-14
Applicant: NICHIA CORPORATION
Inventor： Shoji Hosokawa , Daiki Kuramoto , Kenji Nakata , Atsushi Bando
CPC classification number: H01L33/502 , H01L21/56 , H01L23/29 , H01L23/295 , H01L31/0203 , H01L33/501 , H01L33/508 , H01L33/52 , H01L33/56 , H01L2924/01015 , H01L2924/0106 , H01L2924/181 , H01L2924/186
Abstract: A light emitting device includes a light emitting element, a molded member, and a sealing member. The light emitting element is arranged on or above the molded member. The sealing member covers the light emitting element. The sealing member contains a phosphor, and a filler material. The phosphor can be excited by light of the light emitting element, and emit luminescent radiation. The filler material contains neodymium hydroxide, neodymium aluminate or neodymium silicate. The filler material absorbs a part of the spectrum of the mixed light of the light emitting element and the phosphor so that the other parts of the spectrum of this mixed light are extracted from the light emitting device.
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公开(公告)号：US11257990B2
公开(公告)日：2022-02-22
申请号：US16143349
申请日：2018-09-26
Applicant: Nichia Corporation
Inventor： Atsushi Bando , Kazuya Matsuda
Abstract: A light emitting device includes: a first light emitting element and a second light emitting element, each having a peak emission wavelength in a range of 430 nm to 480 nm; a first light transmissive member disposed on an upper face of the first light emitting element and containing a first phosphor; a second light transmissive member disposed on an upper face of the second light emitting element; and an encapsulant covering the first light transmissive member and the second light transmissive member and containing a second phosphor. The first light emitting element and the second light emitting element are configured to be independently driven. A chromaticity of light exiting from the first light transmissive member differs from a chromaticity of light exiting from the second light transmissive member.
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