公开(公告)号：US10546988B2

公开(公告)日：2020-01-28

申请号：US15886543

申请日：2018-02-01

Applicant: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.

Inventor： Masahiro Hayashi ,  Tetsuya Kamada ,  Takashi Kuwaharada ,  Kiyomi Hagihara ,  Toshikazu Shimokatano ,  Shigeo Hayashi ,  Hiroki Shirozono ,  Hideaki Usukubo

IPC: H01L33/62 ,  H01L33/64 ,  H01L23/00 ,  H01L33/38 ,  H01L33/48

Abstract: A light emitting device includes a light emitting element; a sub-mount including a sub-mount substrate with a front surface on which the light emitting element is disposed, and a back surface electrode disposed in a back surface that is on a back side of the front surface of the sub-mount substrate; a main-mount in which the sub-mount is disposed, the main-mount including a front surface metal pattern including a wiring electrode bonded to the back surface electrode via solder. The front surface metal pattern has a slit, in a plan view, at a position away from a disposition region in which the sub-mount is disposed.

公开(公告)号：US11181245B2

公开(公告)日：2021-11-23

申请号：US16790594

申请日：2020-02-13

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： Ryota Yuge ,  Shigeo Hayashi ,  Tooru Aoyagi ,  Tetsuya Kamada

IPC: F21S41/00 ,  F21S41/153 ,  F21S41/675 ,  F21S41/25 ,  F21S41/365 ,  F21S41/125 ,  F21S41/143 ,  F21S41/20 ,  F21Y105/12 ,  F21Y115/10

Abstract: A light source device includes: a substrate; a light-emitting unit matrix including a plurality of light-emitting units disposed in a matrix on the substrate; and a reflective resin disposed in a region, on the substrate, including a region where the light-emitting unit matrix is disposed. The plurality of light-emitting units include a first light-emitting unit and a second light-emitting unit adjacent to each other in a column direction of the light-emitting unit matrix. The reflective resin includes a first reflective portion disposed between the first light-emitting unit and the second light-emitting unit and extending in a direction intersecting the column direction. At least a portion of an upper surface of the first reflective portion protrudes beyond an upper surface of the first light-emitting unit and an upper surface of the second light-emitting unit.