Organic electroluminescent device employing organic light emitting compound as light emitting material
申请人:Rohm And Haas Electronic Materials Korea Ltd.
公开号:EP2857395A1
公开(公告)日:2015-04-08
Provided is an organic electroluminescent device that exhibits an efficient host-dopant energy transfer mechanism, and thus, expresses a certain high-efficiency electroluminescent performance, based on improved electron density distribution. The organic electroluminescent device also overcomes low initial efficiency and short operation life property, and secures high-performance electroluminescent performance with high efficiency and long life property for each color.
申请人:CHEIL INDUSTRIES INC. 제일모직주식회사(119980034532) Corp. No ▼ 170111-0000076BRN ▼504-81-00025
公开号:KR20150117173A
公开(公告)日:2015-10-19
하기 화학식 1로 표현되고 분자량이 750 미만인 유기 화합물, 상기 유기 화합물을 포함하는 유기 광전자 소자용 조성물, 상기 유기 화합물 또는 상기 조성물을 적용한 유기 광전자 소자 및 상기 유기 광전자 소자를 포함하는 표시 장치에 관한 것이다. [화학식 1] 상기 화학식 1에서, Z, L, R 내지 R, n1 및 n2는 명세서에서 정의한 바와 같다.
SECONDARY HOLE TRANSPORTING LAYER WITH DIARYLAMINO-PHENYL-CARBAZOLE COMPOUNDS
申请人:Kwong Raymond
公开号:US20130241401A1
公开(公告)日:2013-09-19
Novel diarylamino phenyl carbazole compounds are provided. By appropriately selecting the nature of the diarylamino substituent and the substitution on the carbazole nitrogen, compounds with appropriate HOMO and LUMO energies can be obtained for use as materials in a secondary hole transport layer.
A novel substance with which an increase in life and emission efficiency of a light-emitting element can be achieved is provided. A carbazole compound having a structure represented by General Formula (G1) is provided. Note that a substituent which makes the HOMO level and the LUMO level of a compound in which a bond of the substituent is substituted with hydrogen deep and shallow, respectively is used as each of substituents in General Formula (G1) (R
1
, R
2
, Ar
3
, and α
3
). Further, a substituent which makes the band gap (Bg) and the T1 level of a compound in which a bond of the substituent is substituted with hydrogen wide and high is used as each of the substituents in General Formula (G1) (R
1
, R
2
, Ar
3
, and α
3
).