Invention Application
- Patent Title: LIGHT EMITTING DEVICE
-
Application No.: US15818740Application Date: 2017-11-21
-
Publication No.: US20180097153A1Publication Date: 2018-04-05
- Inventor: Hiroshi IWATA , Shoji HOSOKAWA
- Applicant: NICHIA CORPORATION
- Applicant Address: JP Anan-shi
- Assignee: NICHIA CORPORATION
- Current Assignee: NICHIA CORPORATION
- Current Assignee Address: JP Anan-shi
- Priority: JP2015-241647 20151210
- Main IPC: H01L33/50
- IPC: H01L33/50 ; H01L33/60 ; H01L33/62 ; H01L33/56

Abstract:
A light emitting device includes a light emitting element and a wavelength conversion layer covering the light emitting element. The wavelength conversion layer includes first wavelength conversion particles, second wavelength conversion particles, and filling particles. The first wavelength conversion particles contains aluminum. The second wavelength conversion particles have outer surfaces covered with covering material which contains aluminum. The filling particles contain aluminum. The filling particles are provided among the first wavelength conversion particles and the second wavelength conversion particles. The filling particles have particle sizes smaller than particle sizes of the first wavelength conversion particles and particle sizes of the second wavelength conversion particles. The filling particles have aspect ratios smaller than aspect ratios of the first wavelength conversion particles and aspect ratios of the second wavelength conversion particles.
Public/Granted literature
- US10230025B2 Light emitting device having wavelength conversion layer with filling particles Public/Granted day:2019-03-12
Information query
IPC分类: