公开(公告)号：US20180053882A1

公开(公告)日：2018-02-22

申请号：US15679966

申请日：2017-08-17

Applicant: EPISTAR CORPORATION

Inventor： Ching-Tai CHENG ,  Lung-Kuan LAI ,  Ju-Lien KUO ,  Chun-Hua SHIH ,  Hsuan-Tzu PENG ,  Yih-Hua RENN

IPC: H01L33/58 ,  H01L33/50

CPC classification number: H01L33/58 ,  H01L33/502 ,  H01L33/60 ,  H01L33/62 ,  H01L2224/18 ,  H01L2933/0033 ,  H01L2933/0041 ,  H01L2933/0058 ,  H01L2933/0091

Abstract: A light-emitting device includes a light-emitting element, a wavelength converting layer and a light-adjusting layer. The light-emitting element has a first upper surface, a bottom surface, and a lateral surface between the first upper surface and the bottom surface. The wavelength converting layer includes a plurality of wavelength converting particles, and has a second upper surface on the first upper surface. The light-adjusting layer surrounds the lateral surface and has a first composition or a second composition. The first composition includes a first binder and a plurality of first light-diffusing particles. The second composition includes a second binder, a plurality of second light-diffusing particles, and a plurality of light-scattering particles.