公开(公告)号：US11843078B2

公开(公告)日：2023-12-12

申请号：US17134337

申请日：2020-12-26

Applicant: NICHIA CORPORATION

Inventor： Shusaku Bando ,  Hirokazu Sasa

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

CPC classification number: H01L33/505 ,  H01L25/0753 ,  H01L33/58 ,  H01L2933/0041 ,  H01L2933/0058

Abstract: The light emitting device includes: at least one light emitting element including a light-extracting surface and at least one lateral surface; a wavelength converting member including; a first upper surface and a second upper surface, a lower surface located at an opposite side from the first upper surface and the second upper surface, at least one first lateral surface connecting the second upper surface and the first upper surface, and at least one second lateral surface connecting the second upper surface and the lower surface, in which a thickness between the lower surface and the first upper surface is smaller than a thickness between the lower surface and the second upper surface, and the first upper surface is located at an opposite side from the light-extracting surface of a corresponding one of the at least one light emitting element, and the lower surface is located facing the light-extracting surface of the corresponding one of the at least one light emitting element; a covering member covering the at least one second lateral surface of the wavelength converting member and the at least one lateral surface of the light emitting element; and a light-shielding film covering the second upper surface of the wavelength converting member.

公开(公告)号：US10326064B2

公开(公告)日：2019-06-18

申请号：US15955391

申请日：2018-04-17

Applicant: NICHIA CORPORATION

Inventor： Shusaku Bando ,  Dai Wakamatsu ,  Takeshi Kususe

IPC: H01L33/48 ,  H01L33/50 ,  H01L33/60

Abstract: A light emitting device includes a light emitting element, a light transmissive member, and a cover member. The light transmissive member is disposed on an upper face of the light emitting element. The cover member covers a lateral face of the light emitting element and a lateral face of the light transmissive member, and includes first and second cover members. The first cover member is disposed adjacent to the lateral face of the light emitting element and the lateral face of the light transmissive member, and contains a first light reflecting material and a fluorine-based first resin. The second cover member covers the first cover member, and contains a second light reflecting material and a second resin. A refractive index difference between the first light reflecting material and the first resin is larger than a refractive index difference between the second light reflecting material and the second resin.