公开(公告)号：US20140084327A1

公开(公告)日：2014-03-27

申请号：US14019303

申请日：2013-09-05

Applicant: EPISTAR CORPORATION

Inventor： Yu-Chen YANG ,  Chih-Nan LIN ,  Jung-Tsung WU ,  Chien-Fu SHEN

IPC: H01L33/62

CPC classification number: H01L33/62 ,  H01L33/20 ,  H01L33/22 ,  H01L2924/0002 ,  H01L2924/00

Abstract: A light-emitting device comprises: a substrate having a first side and a second side opposite to the first side; a light-emitting stack disposed on the first side and emitting a light having a main wavelength of λ nm; wherein the substrate comprises a first surface on the first side, the first surface comprising a first pattern arranged with a first period, the first pattern comprising a second pattern arranged with a second period; and the first period is greater than 6λ, and the second period is smaller than λ nm.

Abstract translation: 发光装置包括：具有第一侧和与第一侧相对的第二侧的基板; 布置在所述第一侧并发射主波长为λnm的光的发光层; 其中所述基板包括在所述第一侧上的第一表面，所述第一表面包括布置有第一周期的第一图案，所述第一图案包括以第二周期布置的第二图案; 第一周期大于6λ，第二周期小于λnm。