公开(公告)号：US20210020815A1

公开(公告)日：2021-01-21

申请号：US17060772

申请日：2020-10-01

Applicant: EPISTAR CORPORATION

Inventor： Min-Hsun HSIEH ,  Tsung-Hong LU

IPC: H01L33/60 ,  H01L33/50 ,  H01L33/62

Abstract: A light-emitting device includes a light-emitting unit comprising a top surface and a first side surface; a light-transmitting layer covers the top surface and the first side surface; a wavelength conversion structure disposed on the light-transmitting layer; a protective layer covering the second side surface and the light-transmitting layer; and a reflective layer surrounding the protective layer. The wavelength conversion structure includes a wavelength conversion layer, a first barrier layer disposed on the wavelength conversion layer, a second barrier layer disposed under the wavelength conversion layer, the wavelength conversion layer, the first barrier layer, and the second barrier layer are collectively formed a second side surface;

公开(公告)号：US20200328330A1

公开(公告)日：2020-10-15

申请号：US16846059

申请日：2020-04-10

Applicant: EPISTAR CORPORATION

Inventor： Tsung-Hong LU ,  Pao-Yu LIAO ,  Ching-Tai CHENG

IPC: H01L33/50 ,  H01L33/06 ,  H01L33/56 ,  H01L33/54 ,  H01L33/10

Abstract: A LED package comprises an LED chip, a reflective structure which encloses the LED chip, a wavelength conversion structure placed on the LED chip, and an absorbing structure which encloses or is placed on the reflective structure.

公开(公告)号：US20220328734A1

公开(公告)日：2022-10-13

申请号：US17850549

申请日：2022-06-27

Applicant: Epistar Corporation

Inventor： Tsung-Hong LU ,  Ching-Tai CHENG

IPC: H01L33/50 ,  H01L33/60

Abstract: A light-emitting device comprises a light-emitting element, a covering structure, a quantum dot material block, and an adhesive structure is disclosed. The covering structure has a depressed part. The quantum dot material block is filled into the depressed part and enclosed by the light-emitting element and the covering structure. The light-emitting element, the covering structure, and the quantum dot material block are bonded together through the adhesive structure. Since the quantum dot material block is enclosed by the covering structure and the light-emitting element, the outer moisture and oxygen are blocked by the covering structure and the light-emitting element from the quantum dot material block, the decreasing emitting efficiency of the quantum dot material is further alleviated.