KR102303433B1 - 유기발광 표시장치 및 그 제조방법 - Google Patents
유기발광 표시장치 및 그 제조방법 Download PDFInfo
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- KR102303433B1 KR102303433B1 KR1020140164445A KR20140164445A KR102303433B1 KR 102303433 B1 KR102303433 B1 KR 102303433B1 KR 1020140164445 A KR1020140164445 A KR 1020140164445A KR 20140164445 A KR20140164445 A KR 20140164445A KR 102303433 B1 KR102303433 B1 KR 102303433B1
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- light emitting
- organic light
- transflective
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Abstract
Description
도 2는 본 발명의 다른 실시예에 따른 유기발광 표시장치를 도시한 단면도이다.
도 3은 본 발명의 또 다른 실시예에 따른 유기발광 표시장치를 도시한 단면도이다.
도 4 내지 도 13은 본 발명에 일 실시예에 따른 유기발광 표시장치의 제조방법을 도시한 단면도들이다.
도 14 내지 도 18은 본 발명에 다른 실시예에 따른 유기발광 표시장치의 제조방법을 도시한 단면도들이다.
5: 기판 10: 제1 절연층
20: 제2 절연층 30: 제3 절연층
40: 제4 절연층 130: 반투과층
140: 제1 전극 170: 유기 발광층
180: 제2 전극 210: 활성층
220: 게이트 전극 250: 소스/드레인 전극
Claims (20)
- 기판;
상기 기판 상에 배치되는 트랜지스터 소자;
상기 트랜지스터 소자에 전기적으로 연결되는 제1 전극;
상기 제1 전극 상에 배치되는 유기 발광층; 및
상기 유기 발광층 상에 배치되는 제2 전극을 포함하되,
상기 제1 전극의 하면에 접하는 반투과층을 포함하고, 상기 반투과층은 상기 제1 전극 대비 굴절률이 상대적으로 높고,
상기 반투과층은 비정질 실리콘(a-Si), 다결정 실리콘(p-Si) 및 실리콘 카바이드(SiC)로 이루어진 군에서 선택되는 하나 이상을 포함하는 유기발광 표시장치. - 제 1항에 있어서,
상기 반투과층은 상기 제1 전극과의 굴절률 차이가 0.5 이상으로 배치된 유기발광 표시장치. - 제 1항에 있어서,
상기 반투과층은 굴절률이 2.5 이상인 재료로 형성된 유기발광 표시장치. - 삭제
- 제 1항에 있어서,
상기 반투과층은 50Å 내지 200Å의 두께로 배치된 유기발광 표시장치. - 제 1항에 있어서,
상기 제1 전극의 두께는 50Å 내지 100Å 범위인 유기발광 표시장치. - 제 1항에 있어서,
상기 반투과층의 하면에 투명층을 더 포함하는 유기발광 표시장치. - 제 7항에 있어서,
상기 투명층은 상기 제1 전극과 동일한 재료로 형성되는 유기발광 표시장치. - 제 7항에 있어서,
상기 투명층은 인듐 틴 옥사이드(indium tin oxide: ITO), 틴 옥사이드(SnO), 인듐 징크 옥사이드(indium zinc oxide: IZO), 징크 옥사이드(zinc oxide: ZnO), 인듐 옥사이드(indium oxide: In2O3), 인듐 갈륨 옥사이드(indium gallium oxide: IGO), 및 알루미늄 징크 옥사이드(aluminum zinc oxide: AZO) 및 징크 갈륨 옥사이드(zinc gallium oxide: GZO)로 이루어진 군에서 선택되는 하나 이상을 포함하는 유기발광 표시장치. - 기판 상에 트랜지스터 소자를 형성하는 단계;
상기 트랜지스터 소자와 전기적으로 연결되는 제1 전극을 형성하는 단계;
상기 제1 전극 상에 유기 발광층을 형성하는 단계;
상기 유기 발광층 상에 제2 전극을 형성하는 단계를 포함하되,
상기 제1 전극을 형성하기 전에 상기 제1 전극의 하면에 상기 제1 전극 대비 굴절률이 상대적으로 높고, 비정질 실리콘(a-Si), 다결정 실리콘(p-Si) 및 실리콘 카바이드(SiC)로 이루어진 군에서 선택되는 하나 이상을 포함하는 반투과층을 형성하는 단계를 더 포함하는 유기발광 표시장치의 제조방법. - 제 10항에 있어서,
상기 반투과층은 상기 제1 전극과의 굴절률 차이가 0.5 이상으로 형성된 유기발광 표시장치의 제조방법. - 제 10항에 있어서,
상기 반투과층은 굴절률이 2.5 이상인 재료로 형성된 유기발광 표시장치의 제조방법. - 삭제
- 제 10항에 있어서,
상기 제1 전극의 두께는 50Å 내지 100Å 범위인 유기발광 표시장치의 제조방법. - 제 10항에 있어서,
상기 반투과층은 50Å 내지 200Å의 두께로 배치된 유기발광 표시장치의 제조방법. - 기판 상에 트랜지스터 소자를 형성하는 단계;
상기 트랜지스터 소자가 형성된 기판 상에 반투과층과 상기 트랜지스터 소자의 일부를 노출시키는 콘택홀을 형성하는 단계;
상기 반투과층에 중첩되고 상기 콘택홀을 통해 상기 트랜지스터 소자와 전기적으로 연결되는 제1 전극을 형성하는 단계;
상기 제1 전극 상에 유기 발광층을 형성하는 단계;
상기 유기발광층 상에 제2 전극을 형성하는 단계를 포함하되,
상기 반투과층은 상기 제1 전극 대비 굴절률이 상대적으로 높게 형성하며,
상기 반투과층은 비정질 실리콘(a-Si), 다결정 실리콘(p-Si) 및 실리콘 카바이드(SiC)로 이루어진 군에서 선택되는 하나 이상을 포함하는 유기발광 표시장치의 제조방법. - 제 16항에 있어서,
상기 반투과층은 상기 제1 전극과의 굴절률 차이가 0.5 이상으로 형성되는 유기발광 표시장치의 제조방법. - 제 16항에 있어서,
상기 반투과층은 굴절률이 2.5 이상인 재료로 형성되는 유기발광 표시장치의 제조방법. - 삭제
- 제 16항에 있어서,
상기 제1 전극의 두께는 50Å 내지 100Å 범위인 유기발광 표시장치의 제조방법.
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