公开(公告)号：US20240405165A1

公开(公告)日：2024-12-05

申请号：US18662576

申请日：2024-05-13

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Jeongeun YUN ,  Seongmin KIM ,  Sungwoo CHOI ,  Kyounghoon KIM ,  Minhee NOH ,  Jeongrok OH

IPC: H01L33/50 ,  H01L25/075

Abstract: A light emitting device includes a light emitting diode chip configured to emit first light having a peak wavelength of 400 nm to 470 nm; a wavelength conversion material converting a portion of the first light into second light having a peak wavelength of 620 nm to 670 nm; and a near-infrared phosphor configured to convert a portion of the first light into third light having a peak wavelength of 740 nm to 820 nm, wherein the near-infrared phosphor includes a phosphor represented by composition formula CaAl(12-x-y)GayO19:xCr3+, where x satisfies 0.1≤x≤0.3 and y satisfies 1 or more, and an emission spectrum of the third light alone has a ratio of an intensity of 690 nm relative to an intensity of 780 nm of 0.3 or less.