EFFICIENT WHITE-EMITTING FLUORESCENT/PHOSPHORESCENT COMPLEX ELECTROLUMINESCENT DEVICES VIA ENERGY TRANSFER FROM CONJUGATED POLYMER
摘要
Provided is a white electroluminescent device which is improved in the chemical miscibility of a conjugated polymer having a high luminous efficiency and a phosphor, is remarkably lowered in drive voltage and is excellent in color stability. The white electroluminescent device(100) is a polymer-based fluorescent/phosphorescent composite electroluminescent device which comprises a transparent substrate(60); a positive electrode layer(10); a hole transport layer(30); a light emitting layer(50); an electron transport layer(40); and a negative electrode layer(20), wherein the light emitting layer comprises a luminous conjugated polymer; a phosphor; and poly(N-vinyl carbazole) or a blend with its derivative as a luminous unconjugated polymer.
申请公布号
KR100646292(B1)
申请公布日期
2006.11.08
申请号
KR20050091901
申请日期
2005.09.30
申请人
KOREA INSTITUTE OF SCIENCE AND TECHNOLOGY
发明人
KIM, JAI KYEONG;KIM, TAE HO;LEE, HANG KEN;PARK, O OK;CHIN, BYUNG DOO;LEE, SOO HYUNG;YU, JAE WOONG