公开(公告)号：US20190198559A1

公开(公告)日：2019-06-27

申请号：US16222571

申请日：2018-12-17

Applicant: NICHIA CORPORATION

Inventor： Takuya MIKI ,  Naoki MATSUDA

IPC: H01L27/15 ,  H01L33/50 ,  H01L33/62 ,  H01L33/48

CPC classification number: H01L27/15 ,  F21V5/04 ,  F21Y2115/10 ,  H01L33/483 ,  H01L33/50 ,  H01L33/62

Abstract: A light-emitting device includes an inner light-emitting element having an n-sided polygonal shape (n is an integer of 3 or more) in a plan view with a peak emission wavelength in a range of 490 nm to 570 nm; m (m is an integer of 3 or more) outer light-emitting elements with a peak emission wavelength of 430 nm or greater and less than 490 nm; and a first phosphor with a peak emission wavelength in a range of 580 nm to 680 nm covering the inner light-emitting element and the m outer light-emitting elements. Each of n lateral surfaces of the inner light-emitting element faces a corresponding one of the m outer light-emitting elements in a top view.

公开(公告)号：US20210242275A1

公开(公告)日：2021-08-05

申请号：US17302008

申请日：2021-04-21

Applicant: NICHIA CORPORATION

Inventor： Takuya MIKI ,  Naoki MATSUDA

IPC: H01L27/15 ,  H01L33/50 ,  H01L33/48 ,  H01L33/62 ,  H01L25/075

Abstract: A light-emitting device includes an inner light-emitting element having an n-sided polygonal shape (n is an integer of 3 or more) in a plan view with a peak emission wavelength in a range of 490 nm to 570 nm; m (m is an integer of 3 or more) outer light-emitting elements with a peak emission wavelength of 430 nm or greater and less than 490 nm; and a first phosphor with a peak emission wavelength in a range of 580 nm to 680 nm covering the inner light-emitting element and the m outer light-emitting elements. Each of n lateral surfaces of the inner light-emitting element faces a corresponding one of the m outer light-emitting elements in a top view.