The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jun. 27, 2006
Filed:
Feb. 20, 2003
Sanghyuk Lee, Anyang, KR;
Kyuchan Park, Suwon, KR;
Sanghoon Shin, Suwon, KR;
Yongchan You, Anyang, KR;
Joayoung Jeong, Seongnam, KR;
Sanghyuk Lee, Anyang, KR;
Kyuchan Park, Suwon, KR;
Sanghoon Shin, Suwon, KR;
Yongchan You, Anyang, KR;
Joayoung Jeong, Seongnam, KR;
Samsung SDI Co., Ltd., Suwon-si, KR;
Abstract
A yellow ZnS-based phosphor which has improved color coordinates and luminance for use in intermediate- and low-voltage display devices using improved activators and coactivators is a (ZnS: Mn, Cu) phosphor which has color coordinates (x, y) shifting to a yellow emission as the amount copper added as an activator is increased. The phosphor has enhanced luminance by adding a trivalent metal as a coactivator. Therefore, the (ZnS: Mn, Cu) phosphor can be advantageously utilized for various display applications including vacuum fluorescent displays (VFDs) and field emission displays (FEDs).