公开(公告)号：US10312423B2

公开(公告)日：2019-06-04

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: H01L33/50 ,  H01L33/58 ,  H01L33/60 ,  H01L33/62

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.