公开(公告)号：US20200098959A1

公开(公告)日：2020-03-26

申请号：US16193243

申请日：2018-11-16

Applicant: NATIONAL CENTRAL UNIVERSITY

Inventor： Yi-Chun CHEN ,  Ted Liang-tai LEE ,  Ching-Cherng SUN ,  Tsung-Xian LEE

IPC: H01L33/60 ,  H01L33/58 ,  H01L33/48

Abstract: A light-emitting diode lighting structure for improving back-illumination efficiency is revealed. The light-emitting diode lighting structure is disposed on a substrate and composed of a light emitting diode (LED) and a reflective panel. The LED provided with a packaging lens has a light emitting side and a backside. The reflective panel is arranged at the light emitting side of the LED and located adjacent to the packaging lens. A part of light emitted from the light emitting side is reflected to the substrate by the reflective panel. Thereby the illumination on the substrate at the backside can be increased. Moreover, continuous lighting is generated so that messages shown on signboards can be read more clearly and comfortably when a plurality of LEDs is disposed on and applied to the signboards.