Hochlicht-Extraktionseffizienz, Wellenlängekonvertierte Vorrichtungen

Details

Veröffentlichungs-Nr.

EP3511981

Aktenzeichen

EP19151930

Anmeldetag

15. Januar 2019

Veröffentlichung

19. August 2020

Erteilung

19. August 2020

Rechtsraum

EP

IPC

H01L25/075H01L33/50H01L33/58H01L33/60// H01L33/54F21S41/151

Abstract

Light-emitting devices having high operation stability and light extraction efficiency are provided. Such a device (10) includes: a substrate (11); light-emitting elements (20) aligned and arranged on the substrate (11) in an arrangement direction (D1); wavelength conversion layers (30) each disposed on each of the light-emitting elements (20) with a light-transmitting adhesive (12) interposed therebetween, each of the wavelength conversion layers (30) having an upper surface (US) smaller than a bottom surface (BS), and a side surface shape in which a width in a lateral direction (D2) parallel to the bottom surface (BS) and perpendicular to the arrangement direction (D1) decreases from the bottom surface toward the upper surface (US); a light-transmitting plate (40) disposed over the wavelength conversion layers (30); and a reflective resin (14) covering side surfaces of the light-emitting elements (20), the wavelength conversion layers (30), and the light-transmitting plate (40). A side surface (S1) of the wavelength conversion layer facing to another adjacent wavelength conversion layer extends in a direction perpendicular to the substrate (11).

Anmelder

Firma

STANLEY ELECTRIC CO., LTD.

Land

🇯🇵 Japan

Fachgebiete