公开(公告)号：US20030230741A1

公开(公告)日：2003-12-18

申请号：US10171737

申请日：2002-06-14

Applicant: OSRAM SYLVANIA Inc.

Inventor： Chen-Wen Fan ,  Richard G.W. Gingerich

IPC: C09K011/68

CPC classification number: C09K11/584 ,  H05B33/145 ,  Y02B20/181

Abstract: A long-life, white-emitting phosphor blend is provided which comprises about 75 wt. % of a first electroluminescent phosphor having an x color coordinate of about 0.530 and a y color coordinate of about 0.455; about 10 wt. % of a second electroluminescent phosphor having an x color coordinate of about 0.185 and a y color coordinate of about 0.440, said second electroluminescent phosphor containing about 600 ppm copper; and about 15 wt. % of a third electroluminescent phosphor having an x color coordinate of about 0.160 and a y color coordinate of about 0.175, said third electroluminescent phosphor containing about 300 ppm copper.

Abstract translation: 提供长寿命的白色发光荧光粉共混物，其包含约75wt。 ％的第一电致发光荧光体的x色坐标为约0.530，y色坐标为约0.455; 约10重量％ 具有约0.185的x色坐标和约0.440的y色坐标的第二电致发光荧光体的百分比，所述第二电致发光荧光体含有约600ppm的铜; 和约15wt。 具有约0.160的x色坐标和约0.175的y色坐标的第三电致发光荧光体的百分比，所述第三电致发光磷光体含有约300ppm的铜。