Yttrium oxide type red-emitting phosphor for cold cathode fluorescent lamp and Preparing method thereof

摘要

The present invention relates to a yttrium oxide-based red phosphor and a method for a cold cathode fluorescent lamp , and more particularly, lithium , and yttrium oxide -containing matrix , and containing europium as the active element , about 200 ~ 300 in the ultraviolet region of the range to the high luminous efficiency and high color purity characteristics and chemically stable oxide -based red phosphor as , cold cathode lamps (Cold Cathode Fluorescent Lamp, CCFL) can be useful for .