KR102655061B1 - 양자점층 제조 방법, 양자점층을 포함하는 발광 소자 제조 방법, 및 양자점층을 포함하는 표시 장치 - Google Patents
양자점층 제조 방법, 양자점층을 포함하는 발광 소자 제조 방법, 및 양자점층을 포함하는 표시 장치 Download PDFInfo
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- KR102655061B1 KR102655061B1 KR1020190033616A KR20190033616A KR102655061B1 KR 102655061 B1 KR102655061 B1 KR 102655061B1 KR 1020190033616 A KR1020190033616 A KR 1020190033616A KR 20190033616 A KR20190033616 A KR 20190033616A KR 102655061 B1 KR102655061 B1 KR 102655061B1
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Abstract
Description
도 2a는 일 실시예에 따른 양자점층 제조 방법의 순서도이다.
도 2b는 일 실시예에 따른 양자점층 제조 방법의 순서도이다.
도 3은 일 실시예에 따른 양자점층을 포함하는 발광 소자 제조 방법의 순서도이다.
도 4는 일 실시예에 따른 표시 장치의 평면도이다.
도 5a는 제1 내지 제3 발광 전극이 형성된 기판을 제공하는 단계를 도시한 단면도이다.
도 5b는 제1 혼합 용액을 제조하는 단계를 도시한 도면이다.
도 5c는 일 실시예에 따른, 극성 물질로 표면 처리된 양자점 발광체를 도시한 사시도이다.
도 5d는 제1 혼합 용액을 제1 내지 제3 발광 전극들 상에 제공하는 단계를 도시한 단면도이다.
도 5e는 제1 발광 전극에 제2 극성을 제공하는 단계를 도시한 단면도이다.
도 5f는 제1 혼합 용액을 건조하여 제1 양자점층을 형성하는 단계를 도시한 단면도이다.
도 5g는 제2 혼합 용액을 제1 내지 제3 발광 전극들 상에 제공하는 단계를 도시한 단면도이다.
도 5h는 제2 발광 전극에 제2 극성을 제공하는 단계를 도시한 단면도이다.
도 5i는 제2 혼합 용액을 건조하여 제2 양자점층을 형성하는 단계를 도시한 단면도이다.
도 5j는 일 실시예에 따른 제2 발광 전극 및 제3 발광 전극에 제1 극성을 제공하는 단계를 도시한 단면도이다.
도 5k는 일 실시예에 따른 양자점층 제조 방법에 의해 형성된 양자점층이 배치된 기판을 도시한 단면도이다.
도 5l은 일 실시예에 따른 발광 소자 제조 방법에 의해 형성된 발광 소자가 배치된 표시 장치를 도시한 단면도이다.
도 6은 일 실시예에 따른 발광 소자 제조 방법에 의해 형성된 발광 소자가 배치된 표시 장치를 도시한 단면도이다.
LD1, LD2, LD3: 제1 발광 소자, 제2 발광 소자, 제3 발광 소자
EML1, EML2, EML3: 제1 양자점층, 제2 양자점층, 제3 양자점층
PM: 극성 물질
Claims (20)
- 평면상에서 서로 이격된 제1 발광 전극, 제2 발광 전극, 및 제3 발광 전극이 배치된 기판을 제공하는 단계;
제1 극성을 갖도록 극성 물질로 표면 처리된 제1 양자점을 포함하는 제1 혼합 용액을 상기 제1 내지 제3 발광 전극들 상에 제공하는 단계;
상기 제1 발광 전극에 상기 제1 극성과 반대 극성인 제2 극성을 제공하는 단계;
상기 제2 극성이 제공된 상기 제1 발광 전극 상에 상기 제1 양자점을 배치하는 단계; 및
상기 제1 혼합 용액을 건조하여 제1 양자점층을 형성하는 단계를 포함하고,
상기 극성 물질은 3-아미노프로필트리메톡시실란(APTMS), N-(6-아미노헥실)-3-아미노프로필트리메톡시실란(AHAPS), N-(2-아미노에틸)-3-아미노프로필메틸디메톡시실란(AEAPS), 3-아미노프로필-디메틸에톡시실란(APMES), 및 3-(N,N-디메틸)-아미노프로필트리메톡시실란(DMAPS) 중 선택되는 적어도 하나이거나, mercaptobutyric acid 유도체, 및 mercaptovaleric acid 유도체 중 선택되는 적어도 어느 하나인 극성 물질을 포함하는 양자점층 제조 방법. - 제1 항에 있어서,
상기 제1 혼합 용액을 상기 제1 내지 제3 발광 전극들 상에 제공하는 단계는,
상기 극성 물질을 포함하는 베이스 용액에 제1 베이스 양자점을 혼합하여 제1 혼합 용액을 제조하는 단계를 포함하는 양자점층 제조 방법. - 제1 항에 있어서,
상기 제1 극성을 갖도록 표면 처리된 제2 양자점을 포함하는 제2 혼합 용액을 상기 제1 내지 제3 발광 전극들 상에 제공하는 단계;
상기 제2 발광 전극에 상기 제2 극성을 제공하는 단계;
상기 제2 극성이 제공된 상기 제2 발광 전극 상에 상기 제2 양자점을 배치하는 단계;
상기 제2 혼합 용액을 건조하여 제2 양자점층을 형성하는 단계;
상기 제1 극성을 갖도록 표면 처리된 제3 양자점을 포함하는 제3 혼합 용액을 상기 제1 내지 제3 발광 전극들 상에 제공하는 단계;
상기 제3 발광 전극에 상기 제2 극성을 제공하는 단계;
상기 제2 극성이 제공된 상기 제3 발광 전극 상에 상기 제3 양자점을 배치하는 단계; 및
상기 제3 혼합 용액을 건조하여 제3 양자점층을 형성하는 단계를 더 포함하는 양자점층 제조 방법. - 제2 항에 있어서,
상기 극성 물질은 3-아미노프로필트리메톡시실란(APTMS), N-(6-아미노헥실)-3-아미노프로필트리메톡시실란(AHAPS), N-(2-아미노에틸)-3-아미노프로필메틸디메톡시실란(AEAPS), 3-아미노프로필-디메틸에톡시실란(APMES), 및 3-(N,N-디메틸)-아미노프로필트리메톡시실란(DMAPS)중 적어도 어느 하나인 양자점층 제조 방법. - 삭제
- 삭제
- 제2 항에 있어서,
상기 극성 물질은 mercaptobutyric acid 유도체, 및 mercaptovaleric acid 유도체 중 적어도 어느 하나인 양자점층 제조 방법. - 삭제
- 삭제
- 제1 항에 있어서,
상기 제1 양자점층은 청색 광을 흡수하여 적색 광 또는 녹색 광을 방출하는 양자점층 제조 방법. - 제1 항에 있어서,
상기 기판은 90% 이상의 광 투과도를 갖는 양자점층 제조 방법. - 제1 항에 있어서,
상기 제1 양자점을 배치하는 단계는 상기 제2 발광 전극 및 상기 제3 발광 전극에 상기 제1 극성을 제공하는 단계를 더 포함하는 양자점층 제조 방법. - 제3 항에 있어서,
상기 제1 내지 제3 양자점층 상에 제2 전극을 배치하는 단계를 더 포함하고,
상기 제1 양자점층은 적색 광을 발광하고, 상기 제2 양자점층은 녹색 광을 발광하고, 상기 제3 양자점층은 청색 광을 발광하는 양자점층 제조 방법. - 제1 전극이 배치된 기판을 제공하는 단계;
제1 극성을 갖도록 극성 물질로 표면 처리된 양자점을 포함하는 제1 혼합 용액을 상기 제1 전극 상에 제공하는 단계;
상기 제1 전극에 상기 제1 극성과 반대 극성인 제2 극성을 제공하는 단계;
상기 제2 극성이 제공된 상기 제1 전극 상에 상기 양자점을 배치하는 단계;
상기 제1 혼합 용액을 건조하여 양자점층을 형성하는 단계; 및
상기 양자점층 상에 제2 전극을 배치하는 단계를 포함하고,
상기 극성 물질은 3-아미노프로필트리메톡시실란(APTMS), N-(6-아미노헥실)-3-아미노프로필트리메톡시실란(AHAPS), N-(2-아미노에틸)-3-아미노프로필메틸디메톡시실란(AEAPS), 3-아미노프로필-디메틸에톡시실란(APMES), 및 3-(N,N-디메틸)-아미노프로필트리메톡시실란(DMAPS) 중 선택되는 적어도 하나이거나, mercaptobutyric acid 유도체, 및 mercaptovaleric acid 유도체 중 선택되는 적어도 어느 하나인 발광 소자 제조 방법. - 삭제
- 삭제
- 제1 화소 영역, 제2 화소 영역, 및 제3 화소 영역을 포함한 표시 장치에 있어서,
상기 제1 화소 영역, 상기 제2 화소 영역, 및 상기 제3 화소 영역 각각에 일대일 대응하는 제1 발광 소자, 제2 발광 소자, 및 제3 발광 소자를 포함하고,
상기 제1 내지 제3 발광 소자들 각각은 제1 전극, 제2 전극, 및 상기 제1 전극 및 상기 제2 전극 사이에 배치되며 극성 물질로 표면 처리된 양자점을 포함하는 양자점층을 포함하고,
상기 극성 물질은 3-아미노프로필트리메톡시실란(APTMS), N-(6-아미노헥실)-3-아미노프로필트리메톡시실란(AHAPS), N-(2-아미노에틸)-3-아미노프로필메틸디메톡시실란(AEAPS), 3-아미노프로필-디메틸에톡시실란(APMES), 및 3-(N,N-디메틸)-아미노프로필트리메톡시실란(DMAPS) 중 선택되는 적어도 하나이거나, mercaptobutyric acid 유도체, 및 mercaptovaleric acid 유도체 중 선택되는 적어도 어느 하나인 표시 장치. - 삭제
- 제17 항에 있어서,
상기 제1 내지 제3 발광 소자들 각각은,
상기 제1 전극 및 상기 양자점층 사이에 배치된 전자 수송 영역; 및
상기 양자점층 및 상기 제2 전극 사이에 배치된 정공 수송 영역을 더 포함하는 표시 장치. - 제17 항에 있어서,
상기 제1 발광 소자는 적색 광을 발광하고, 상기 제2 발광 소자는 녹색 광을 발광하고, 상기 제3 발광 소자는 청색 광을 발광 하는 표시 장치.
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