Invention Grant
- Patent Title: White light emitting devices
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Application No.: US15838594Application Date: 2017-12-12
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Publication No.: US10312419B2Publication Date: 2019-06-04
- Inventor: Jeong Rok Oh , Jeong Eun Yun , Sung Woo Choi , Cho Hui Kim , Chul Soo Yoon
- Applicant: Samsung Electronics Co., Ltd.
- Applicant Address: KR Gyeonggi-do
- Assignee: Samsung Electronics Co., Ltd.
- Current Assignee: Samsung Electronics Co., Ltd.
- Current Assignee Address: KR Gyeonggi-do
- Agency: Harness, Dickey & Pierce, P.L.C.
- Priority: KR10-2017-0056531 20170502
- Main IPC: H01L33/50
- IPC: H01L33/50 ; C09K11/77 ; H01L25/075 ; H01L33/62 ; H01L33/60 ; H01L33/48

Abstract:
A white light emitting device may include a blue light emitting diode configured to emit blue light and a plurality of wavelength conversion materials configured to convert the blue light into light having different wavelengths based on being excited by the blue light, and emit white light based on the converting, wherein the emitted white light is associated with an Illuminating Engineering Society (IES) TM-30-15 Fidelity Index (Rf) in a range of 78 to 89, an IES TM-30-15 Chroma Change by Hue Index Rcs15 in a range of 7% to 16%, and an IES TM-30-15 Chroma Change by Hue Index Rcs16 in a range of 7% to 16%, and a color difference between a reflection spectrum of a white specimen of the emitted white light, and International Commission on Illumination (CIE) Standard illuminant D65, that is equal to or less than 106.
Public/Granted literature
- US20180323350A1 WHITE LIGHT EMITTING DEVICES Public/Granted day:2018-11-08
Information query
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