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公开(公告)号：US11817529B2
公开(公告)日：2023-11-14
申请号：US17200316
申请日：2021-03-12
申请人： NICHIA CORPORATION
发明人： Kosuke Sato , Keiji Emura
CPC分类号： H01L33/387 , H01L33/06 , H01L33/38
摘要： A light emitting element includes a semiconductor structure, and first and second electrodes. In a plan view, the first electrode has a first connecting portion, and a first extending portion and exactly two second extending portions. The second electrode has a second connecting portion, and exactly two third extending portions. The first extending portion extends linearly from the first electrode connecting portion toward the second electrode connecting portion. Each of the two third extending portions includes a bent portion, and a linear portion located between the first extending portion and a respective one of linear portions of the two second extending portions, and along an imaginary line that extends through the two second extending portions and the two third extending portions in a direction perpendicular to the direction in which the first extending portion extends, an entirety of the second electrode is located inward of the two second extending portions.
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公开(公告)号：US11480319B2
公开(公告)日：2022-10-25
申请号：US17169094
申请日：2021-02-05
申请人： NICHIA CORPORATION
发明人： Takuya Nakabayashi , Toru Hashimoto , Keiji Emura
IPC分类号： F21V14/06 , F21V5/04 , G02F1/13357 , G02F1/1335 , F21V8/00 , F21V9/08 , F21V13/14 , F21Y105/16
摘要： A light emitting module includes: a light guide member including: an emission region defined by a sectioning groove, a light source placement part located in the emission region, and a light adjusting hole that, in a schematic top view, is located between the sectioning groove and the light source placement part; and a light source located in the light source placement part. A refractive index of an inside of the light adjusting hole is lower than a refractive index of the light guide member. In the schematic top view, the light adjusting hole is not positioned on a first straight line connecting a center of the light source and a farthest point in the sectioning groove, the farthest point being farthest from the center of the light source.
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公开(公告)号：US10593840B2
公开(公告)日：2020-03-17
申请号：US16351206
申请日：2019-03-12
申请人： NICHIA CORPORATION
发明人： Kosuke Sato , Keiji Emura
摘要： A light emitting element has first and second electrodes. In plan view, the first electrode has a first connecting portion configured to be bonded with a conductive wire, a first extending portion, and two second extending portions. The second electrode has a second connecting portion configured to be bonded with a conductive wire, and two third extending portions. The first extending portion extends linearly toward the second connecting portion, and the two second extending portions are arranged on two sides of the first extending portion. The second extending portions each has two bent portions and a linear portion extending parallel to the first extending portion and disposed between the two bent portions. The third extending portions extend parallel to the first extending portion between the first extending portion and the second extending portions. Each of the second extending portions extends beyond a position of the second connecting portion.
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公开(公告)号：US09929316B2
公开(公告)日：2018-03-27
申请号：US15388507
申请日：2016-12-22
申请人： NICHIA CORPORATION
发明人： Keiji Emura , Yoshiki Inoue , Takamasa Sunda
CPC分类号： H01L33/405 , H01L27/156 , H01L33/382 , H01L33/44 , H01L33/46 , H01L33/62
摘要： A light emitting element includes a substrate; a plurality of semiconductor light emitting cells; a plurality of light reflective electrodes; a first insulation layer that continuously covers lateral surfaces of the semiconductor light emitting cells, spaces between the semiconductor light emitting cells, lateral surfaces of the light reflective electrodes, and a portion of upper surfaces of the light reflective electrodes; a plurality of wiring electrodes, and cover the lateral surfaces of the semiconductor light emitting cells and the spaces between the semiconductor light emitting cells via the first insulation layer; and a light reflective metal layer that covers the lateral surfaces of at least two adjacent ones of the semiconductor light emitting cells and the space between said at least two semiconductor light emitting cells, via the first insulation layer.
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公开(公告)号：US12068436B2
公开(公告)日：2024-08-20
申请号：US17479957
申请日：2021-09-20
申请人： NICHIA CORPORATION
发明人： Hiroshi Fujimoto , Keiji Emura , Hidetoshi Tanaka
CPC分类号： H01L33/382 , H01L33/62
摘要： A light-emitting element includes: a semiconductor stack having a triangular shape in a top plan view, the semiconductor stack including a first semiconductor layer, a second semiconductor layer, and an active layer between the first and seconds semiconductor layers; a first electrode located on the first semiconductor layer and including a first connecting portion and a first extension extending from the first connecting portion; and a second electrode located on the second semiconductor layer and including a second connecting portion and a second extension extending from the second connecting portion. The first extension includes a first portion extending from the first connecting portion toward the second connecting portion. The second extension includes a second portion including a portion extending along a first side, a third portion including a portion extending along a second side, and fourth and fifth portions each including a portion extending along a third side.
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公开(公告)号：US12001046B2
公开(公告)日：2024-06-04
申请号：US17449446
申请日：2021-09-29
申请人： NICHIA CORPORATION
发明人： Keiji Emura
IPC分类号： F21V8/00
CPC分类号： G02B6/0051 , G02B6/0003 , G02B6/0055
摘要： A light-emitting device includes a light-emitting element, a light guide member surrounding the light-emitting element, a diffuser plate located on the light-emitting element and on the light guide member, and a metal pattern located at an upper surface of the diffuser plate. The diffuser plate contacts the light-emitting element and diffuses light emitted from the light-emitting element. A proportion of a region of the upper surface of the diffuser plate where the metal pattern is not located increases as a distance from the light-emitting element increases.
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公开(公告)号：US10923632B2
公开(公告)日：2021-02-16
申请号：US16835725
申请日：2020-03-31
申请人： NICHIA CORPORATION
发明人： Akihiro Nakamura , Keiji Emura
摘要： A light emitting element includes a semiconductor structure including a first layer including a first and a second regions, and a second layer above the second region, the first region including extending portions each extending into the second region from an outer peripheral region; a first insulating layer including first through-holes respectively located on the extending portions, and a second through-hole located above the second region; a second insulating layer including a third and a fourth through-holes; a first external electrode connected with the first layer via the first through-holes; and a second external electrode connected with the second layer via the second through-hole. The extending portions are each located in an area, on a top surface of the first layer, other than an area overlapping any of corner portions of the first external electrode and other than an area overlapping any of corner portions of the second external electrode.
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公开(公告)号：US10910536B2
公开(公告)日：2021-02-02
申请号：US16287545
申请日：2019-02-27
申请人： NICHIA CORPORATION
发明人： Keiji Emura , Takao Misaki , Takamasa Sunda , Yoshinori Fukui
摘要： The light emitting element includes: first and second light emitting cells each including an n-side semiconductor layer, an active layer and a p-side semiconductor layer; a first insulating film covering the first and second light emitting cells, and provided with first p-side and first n-side openings; a wiring electrode connected to the first light emitting cell at the first n-side opening, and connected to the second light emitting cell at the first p-side opening; a first electrode connected to the first light emitting cell; a second electrode connected to the second light emitting cell; a second insulating film provided with a second p-side opening formed above the first electrode, a second n-side opening formed above the second electrode, and a third opening formed above the wiring electrode; a first external connection portion connected to the first electrode; and a second external connection portion connected to the second electrode.
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公开(公告)号：US10468556B2
公开(公告)日：2019-11-05
申请号：US16100104
申请日：2018-08-09
申请人： Nichia Corporation
发明人： Keiji Emura , Yoshiki Inoue , Hiroaki Kageyama
摘要： Provided are a light emitting element and a light emitting device with improved light emission intensity distribution. A light emitting element includes a light-transmissive substrate, an n-type semiconductor layer, a first p-type semiconductor layer, a first p-side electrode, a first n-side electrode, a second p-type semiconductor layer, a second p-side electrode, and a second n-side electrode. A light emitting device includes the light emitting element, and an external connection electrode provided at the light emitting element on a side opposite to the light-transmissive substrate. The external connection electrode includes an n-side external connection electrode connected to the first n-side electrode and the second n-side electrode, a first p-side external connection electrode connected to the first p-side electrode, and a second p-side external connection electrode connected to the second p-side electrode.
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公开(公告)号：US10164153B2
公开(公告)日：2018-12-25
申请号：US15853567
申请日：2017-12-22
申请人： NICHIA CORPORATION
发明人： Keiji Emura , Takamasa Sunda
摘要： A light-emitting element includes: a semiconductor structure; light-reflecting electrodes; a first insulating film having: one or more first n-side openings and one or more first p-side openings; one or more interconnect electrodes on an upper surface of the first insulating film; a first electrode on the upper surface of the first insulating film; a second electrode on the upper surface of the first insulating film; a second insulating film having: one or more second n-side openings and one or more second p-side openings; a first external connection portion; and a second external connection portion.
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