KR101952899B1 - 유기 발광 표시 장치 및 시야각특성을 개선한 상부 발광 oled 장치 - Google Patents
유기 발광 표시 장치 및 시야각특성을 개선한 상부 발광 oled 장치 Download PDFInfo
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Abstract
Description
도 1은 본 발명유기 발광 장치의 구조의 개략도이다;
도 2는 본발명의 제1 광학 보상 층및 제2 광학 보상 층 계면 전하 분리 효과를 발생하는 개략도이다;
도 3은 본 발명의 제1 광학 보상 층의 계면에 제2 정공 주입 층과 전하 분리의 정공 주입 층이 인터페이스 효과가 발생하는개략도이다;
도 4는본발명의 실시예 5-11에 기재된 시야각 특성을 개선하기 위한 상부발광OLED 장치 구조도이다;
도 5는 본 발명에 사용하는제3급 아민류 화합물의 굴절율의 파장에 따른 변화그래프 및 4,4 ', 4 "-트리스 [페닐 (m- 톨릴) 아미노] 트리 페닐 아민의 굴절율의 파장에 따른 변화그래프이다.
정공주입층 | 광학보상층 | 정공수송층 | 발광층 | 전자수송층 | 음극 | 광결합층 | ||
실시예1 | 청색빛 | C6(110nm) | NPB(20nm) | AND(30nm) :5%DPAVB |
LG201(15nm) :100%LiQ |
Mg(12nm):Ag(2nm) | NPB(50nm) | |
녹색빛 | C6(110nm) | C6(50nm): 2%C8/C8(5nm) |
NPB(20nm) | CBP(30nm):100%Ir(ppy)3 | LG201(15nm) :100%LiQ |
Mg(12nm):Ag(2nm) | NPB(50nm) |
|
적색빛 | C6(110nm) | C6(100nm) :2%C8/C8(5nm) |
NPB(20nm) | CBP(30nm):7%Ir(piq)3 | LG201(15nm) :100%LiQ |
Mg(12nm):Ag(2nm) | NPB(50nm) | |
실시예2 | 청색빛 | C6(105nm) /C8(5nm) |
NPB(20nm) | AND(30nm) :5%DPAVB |
LG201(15nm) :100%LiQ |
Mg(12nm):Ag(2nm) | NPB(50nm) | |
녹색빛 | C6(105nm) /C8(5nm) |
C6(50nm): 2%C8/C8(5 nm) |
NPB(20nm) | CBP(30nm):100%Ir(ppy)3 | LG201(15nm) :100%LiQ |
Mg(12nm):Ag(2nm) | NPB(50nm) | |
적색빛 | C6(105nm) /C8(5nm) |
C6(100nm) :2%C8/C8( 5nm) |
NPB(20nm) | CBP(30nm):7%Ir(piq)3 | LG201(15nm) :100%LiQ |
Mg(12nm):Ag(2nm) | NPB(50nm) | |
실시예3 | 청색빛 | C8(5nm)/C 6(100nm)/ C8(5nm) |
NPB(20nm) | AND(30nm) :5%DPAVB |
LG201(15nm) :100%LiQ |
Mg(12nm):Ag(2nm) | NPB(50nm) | |
녹색빛 | C8(5nm)/C 6(100nm)/ C8(5nm) |
C6(50nm): 2%C8/C8(5 nm) |
NPB(20nm) | CBP(30nm):100%Ir(ppy)3 | LG201(15nm) :100%LiQ |
Mg(12nm):Ag(2nm) | NPB(50nm) | |
적색빛 | C8(5nm)/C 6(100nm)/ C8(5nm) |
C6(100nm) :2%C8/C8( 5nm) |
NPB(20nm) | CBP(30nm):7%Ir(piq)3 | LG201(15nm) :100%LiQ |
Mg(12nm):Ag(2nm) | NPB(50nm) | |
실시예4 | 청색빛 | C6(110nm) | NPB(20nm) | AND(30nm) :5%DPAVB |
LG201(15nm) :100%LiQ |
Mg(12nm):Ag(2nm) | NPB(50nm) | |
녹색빛 | C6(110nm) | C6(50nm): 2%C8/C8(5 nm) |
NPB(20nm) | CBP(30nm):100%Ir(ppy)3 | LG201(15nm) :100%LiQ |
Mg(12nm):Ag(2nm) | NPB(50nm) | |
적색빛 | C6(110nm) | C6(50nm): 2%C8/C8(5 nm)/ C6(45 nm):2%C8/ C8(5nm) |
NPB(20nm) | CBP(30nm):7%Ir(piq)3 | LG201(15nm) :100%LiQ |
Mg(12nm):Ag(2nm) | NPB(50nm) | |
비교예 | 청색빛 | C6(110nm) | NPB(20nm) | AND(30nm) :5%DPAVB |
LG201(15nm) :100%LiQ |
Mg(12nm):Ag(2nm) | NPB(50nm) | |
녹색빛 | C6(110nm) | C6(55nm): |
NPB(20nm) | CBP(30nm):100%Ir(ppy)3 | LG201(15nm) :100%LiQ |
Mg(12nm):Ag(2nm) | NPB(50nm) | |
적색빛 | C6(110nm) | C6(105nm): |
NPB(20nm) | CBP(30nm):7%Ir(piq)3 | LG201(15nm) :100%LiQ |
Mg(12nm):Ag(2nm) | NPB(50nm) |
실시예1 | 실시예2 | 실시예3 | 실시예4 | 비교예 | ||
청색빛 | 빛의세기cd/m2 | 500 | 500 | 500 | 500 | 500 |
전압 V | 4.92 | 4.81 | 4.66 | 4.91 | 4.92 | |
전류밀도 A/m2 | 112 | 112 | 112 | 112 | 112 | |
효율 cd/A | 4.45 | 4.46 | 4.45 | 4.45 | 4.45 | |
비색 | (0.14,0.06) | (0.14,0.06) | (0.14,0.06) | (0.14,0.06) | (0.14,0.06) | |
녹색빛 | 빛의세기cd/m2 | 10000 | 10000 | 10000 | 10000 | 10000 |
전압 V | 4.83 | 4.76 | 4.51 | 4.81 | 5.01 | |
전류밀도 A/m2 | 136 | 139 | 131 | 135 | 144.9 | |
효율 cd/A | 66.3 | 64.9 | 68.9 | 66.5 | 62.1 | |
비색 | (0.20,0.72) | (0.20,0.72) | (0.20,0.72) | (0.20,0.72) | (0.20,0.72) | |
적색빛 | 빛의세기cd/m2 | 5000 | 5000 | 5000 | 5000 | 5000 |
전압 V | 4.98 | 4.85 | 4.68 | 4.62 | 5.09 | |
전류밀도 A/m2 | 237 | 243 | 247 | 219 | 260 | |
효율 cd/A | 21.1 | 20.6 | 20.2 | 22.8 | 19.2 | |
비색 | (0.67,0.33) | (0.67,0.33) | (0.67,0.33) | (0.67,0.33) | (0.67,0.33) |
정공주입층 | 광학보상층 | 정공수송층 | 발광층 | 전자수송층 | 음극 | 광결합층 | ||
실시예1 | 청색빛 | C2(110nm) | NPB(20nm) | AND(30nm):5 %DPAVB |
LG201(15nm) :100%LiQ |
Mg(12nm):Ag (2nm) |
NPB(50nm) | |
녹색빛 | C2(110nm) | C2(45nm)/ HAT(CN)(1 0nm) |
NPB(20nm) | CBP(30nm):1 0%Ir(ppy)3 |
LG201(15nm) :100%LiQ |
Mg(12nm):Ag (2nm) |
NPB(50nm) | |
적색빛 | C2(110nm) | C2(95nm)/ HAT(CN)(1 0nm) |
NPB(20nm) | CBP(30nm):7 %Ir(piq)3 |
LG201(15nm) :100%LiQ |
Mg(12nm):Ag (2nm) |
NPB(50nm) | |
실시예2 | 청색빛 | C2(105nm) /HAT(CN)( 10nm) |
NPB(20nm) | AND(30nm):5 %DPAVB |
LG201(15nm) :100%LiQ |
Mg(12nm):Ag (2nm) |
NPB(50nm) | |
녹색빛 | C2(105nm) /HAT(CN)( 10nm) |
C2(45nm)/ HAT(CN)(1 0nm) |
NPB(20nm) | CBP(30nm):1 0%Ir(ppy)3 |
LG201(15nm) :100%LiQ |
Mg(12nm):Ag (2nm) |
NPB(50nm) | |
적색빛 | C2(105nm) /HAT(CN)( 10nm) |
C2(95nm)/ HAT(CN)(1 0nm) |
NPB(20nm) | CBP(30nm):7 %Ir(piq)3 |
LG201(15nm) :100%LiQ |
Mg(12nm):Ag (2nm) |
NPB(50nm) | |
실시예3 | 청색빛 | HAT(CN)(1 0nm)/C2(1 05nm)/HAT (CN)(10nm |
NPB(20nm) | AND(30nm):5 %DPAVB |
LG201(15nm) :100%LiQ |
Mg(12nm):Ag (2nm) |
NPB(50nm) | |
녹색빛 | HAT(CN)(1 0nm)/C2(1 05nm)/HAT (CN)(10nm |
C2(45nm)/ HAT(CN)(1 0nm) |
NPB(20nm) | CBP(30nm):1 0%Ir(ppy)3 |
LG201(15nm) :100%LiQ |
Mg(12nm):Ag (2nm) |
NPB(50nm) | |
적색빛 | HAT(CN)(1 0nm)/C2(1 05nm)/HAT (CN)(10nm |
C2(95nm)/ HAT(CN)(1 0nm) |
NPB(20nm) | CBP(30nm):7 %Ir(piq)3 |
LG201(15nm) :100%LiQ |
Mg(12nm):Ag (2nm) |
NPB(50nm) | |
실시예4 | 청색빛 | C2(110nm) | NPB(20nm) | AND(30nm):5 %DPAVB |
LG201(15nm) :100%LiQ |
Mg(12nm):Ag (2nm) |
NPB(50nm) | |
녹색빛 | C2(110nm) | C2(45nm)/ HAT(CN)(1 0nm) |
NPB(20nm) | CBP(30nm):1 0%Ir(ppy)3 |
LG201(15nm) :100%LiQ |
Mg(12nm):Ag (2nm) |
NPB(50nm) | |
적색빛 | C2(110nm) | C2(45nm)/ HAT(CN)(1 0nm)/C2(4 0nm)/HAT( CN)(10nm) |
NPB(20nm) | CBP(30nm):7 %Ir(piq)3 |
LG201(15nm) :100%LiQ |
Mg(12nm):Ag (2nm) |
NPB(50nm) | |
비교예 | 청색빛 | C2(110nm) | NPB(20nm) | AND(30nm):5 %DPAVB |
LG201(15nm) :100%LiQ |
Mg(12nm):Ag (2nm) |
NPB(50nm) | |
녹색빛 | C2(110nm) | C2(55nm) | NPB(20nm) | CBP(30nm):1 0%Ir(ppy)3 |
LG201(15nm) :100%LiQ |
Mg(12nm):Ag (2nm) |
NPB(50nm) | |
적색빛 | C2(110nm) | C2(105nm) | NPB(20nm) | CBP(30nm):7 %Ir(piq)3 |
LG201(15nm) :100%LiQ |
Mg(12nm):Ag (2nm) |
NPB(50nm) |
실시예1 | 실시예2 | 실시예3 | 실시예4 | 비교예 | ||
청색빛 | 빛의세기cd/m2 | 500 | 500 | 500 | 500 | 500 |
전압 V | 4.85 | 4.72 | 4.59 | 4.85 | 4.85 | |
전류밀도 A/m2 | 115 | 113 | 115 | 115 | 115 | |
효율 cd/A | 4.33 | 4.41 | 4.35 | 4.33 | 4.32 | |
비색 | (0.14,0.06) | (0.14,0.06) | (0.14,0.06) | (0.14,0.06) | (0.14,0.06) | |
녹색빛 | 빛의세기cd/m2 | 10000 | 10000 | 10000 | 10000 | 10000 |
전압 V | 4.77 | 4.65 | 4.43 | 4.76 | 4.82 | |
전류밀도 A/m2 | 154 | 156 | 150 | 151 | 161 | |
효율 cd/A | 65.1 | 64.2 | 66.8 | 66.2 | 61.9 | |
비색 | (0.20,0.72) | (0.20,0.72) | (0.20,0.72) | (0.20,0.72) | (0.20,0.72) | |
적색빛 | 빛의세기cd/m2 | 5000 | 5000 | 5000 | 5000 | 5000 |
전압 V | 4.91 | 4.75 | 4.61 | 4.55 | 4.97 | |
전류밀도 A/m2 | 249 | 249 | 244 | 233 | 256 | |
효율 cd/A | 20.2 | 20.1 | 20.5 | 21.5 | 19.5 | |
비색 | (0.67,0.33) | (0.67,0.33) | (0.67,0.33) | (0.67,0.33) | (0.67,0.33) |
파장(460nm) | 정공주입층의 굴절률 | 발광봉의 편이량(Δu'v') |
실시예5 | 2.04 | 0.021 |
비교예1 | 1.8 | 0.035 |
파장(510nm) | 정공주입층의 굴절률 | 발광봉의 편이량(Δu'v') |
실시예6 | 1.93 | 0.011 |
비교예2 | 1.73 | 0.026 |
파장(620nm) | 정공주입층의 굴절률 | 발광봉의 편이량(Δu'v') |
실시예7 | 1.81 | 0.045 |
비교예3 | 1.67 | 0.068 |
Claims (32)
- 삭제
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- 기판 및 기판 위에 중첩 설치된 제1 전극과, 정공 주입층과 정공 수송층과 발광층과 전자 수송층과 제2 전극과 광취출결합층을 포함하고 상기 제2 전극의 투과율은 25% 이상이며,
녹색 및 적색 화소 영역이 상기 정공 주입층과 정공 수송층 사이에 있는 적어도 2층 구조인 광학 보상층을 더 포함하고,
청색 화소 영역의 상기 정공 주입층의 굴절률은 2.0 이상이고,
녹색 화소 영역의 상기 정공 주입층의 굴절률은 1.9 이상이며,
적색 화소 영역의 상기 정공 주입층의 굴절률은 1.8 이상이며,
상기 정공 주입층의 재료의 구조식은
또는
또는
또는
또는
또는
인 것을 특징으로 하는 시야각 특성을 개선한 상부 발광 OLED 장치. - 삭제
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- 제11항에 있어서
상기 광 취출 층은 2,9- 디메틸 -4,7- 디 페닐 -1,10- 페난 트롤 린 인 것을 특징으로 하는 시야각 특성을 개선한 상부 발광 OLED 장치. - 삭제
- 제11항에 있어서,
녹색 화소 영역의 상기 광학 보상층은 제1 광학 보상층 및 제2 광학 보상층을 포함하고 이 제1 광학 보상층의 최고 점유 분자 궤도 레벨에서 제2 광학 보상층의 최저 공분자 궤도 레벨을 차감한 값≥-0.2eV이고, 적색 화소 영역의 상기 광학 보상층은 제1 광학 보상층 및 제2 광학 보상층을 포함하고 이 제1 광학 보상층의 최고 점유 분자 궤도 레벨에서 제2 광학 보상층의 최저 공분자 궤도 레벨을 차감한 값≥-0.2eV인것을 특징으로 하는 시야각 특성을 개선한 상부 발광 OLED 장치. - 제11항에 있어서,
녹색 화소 영역의 상기 광학 보상층은 제1 광학 보상층 및 제2 광학 보상층을 포함하고 이 제1 광학 보상층의 최고 점유 분자 궤도 레벨에서 제2 광학 보상층의 최저 공분자 궤도 레벨을 차감한 값≥-0.2eV이고, 적색 화소 영역의 상기 광학 보상층은 제1 광학 보상층, 제2 광학 보상층, 제3 광학 보상층 및 제4 광학 보상층을 포함하고 이 제1 광학 보상층의 최고 점유 분자 궤도 레벨에서 제2 광학 보상층의 최저 공분자 궤도 레벨을 차감한 값≥-0.2eV이고, 이 제3 광학 보상층에 이용된 재질과 이 제1 광학 보상층에 이용된 재질이 같고, 이 제4 광학 보상층에 이용된 재료와 그 두께는 제2 광학 보상층의 것과 같은 것을 특징으로 하는 시야각 특성을 개선한 상부 발광 OLED 장치. - 삭제
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