MULTI-COMPONENT HOST MATERIAL AND ORGANIC ELECTROLUMINESCENT DEVICE COMPRISING THE SAME

Title:

MULTI-COMPONENT HOST MATERIAL AND ORGANIC ELECTROLUMINESCENT DEVICE COMPRISING THE SAME

Document Type and Number:

WIPO Patent Application WO/2015/174738

Kind Code:

A1

Abstract:

The present invention relates to an organic electroluminescent device comprising at least one light-emitting layer between an anode and a cathode, wherein the light-emitting layer comprises a host and a dopant; the host consists of multi-component host compounds; at least a first host compound of the multi-component host compounds is a specific bicarbazole derivative containing an aryl group, and a second host compound is a specific carbazole derivative including a nitrogen-containing heteroaryl group. According to the present invention, an organic electroluminescent device using the multi-component host compounds has a high efficiency and long lifespan compared to the conventional organic electroluminescent device using one component of a host.

Inventors:

AHN HEE-CHOON (KR)
KIM YOUNG-KWANG (KR)
MOON DOO-HYEON (KR)
YANG JEONG-EUN (KR)
LEE SU-HYUN (KR)
KIM CHI-SIK (KR)
JUN JI-SONG (KR)
PARK KYOUNG-JIN (KR)
SHIM JAE-HOON (KR)
DOH YOO-JIN (KR)
KIM BITNARI (KR)

Application Number:

PCT/KR2015/004810

Publication Date:

November 19, 2015

Filing Date:

May 13, 2015

Export Citation:

Click for automatic bibliography generation Help

Assignee:

ROHM & HAAS ELECT MAT (KR)

International Classes:

C09K11/06; H01L27/32; H01L51/54

Domestic Patent References:

WO2013109045A1	2013-07-25
WO2014014310A1	2014-01-23
WO2010114264A2	2010-10-07
WO2014042405A1	2014-03-20

Attorney, Agent or Firm:

CHANG, Hoon (Korean Re Bldg. 5F 68, Jong-ro 5-gil,Jongno-gu, Seoul 110-733, KR)

Download PDF:

View/Download PDF PDF Help

Previous Patent: SELF-DIAMETER-ENLARGING PILE, AND METHOD FOR CONSTRUCTING SAME

Next Patent: METHOD FOR PROVIDING EXERCISE CONSULTING INFORMATION