KR102340745B1 - 저유전 절연막 및 이를 포함하는 표시 장치 - Google Patents
저유전 절연막 및 이를 포함하는 표시 장치 Download PDFInfo
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- KR102340745B1 KR102340745B1 KR1020140193121A KR20140193121A KR102340745B1 KR 102340745 B1 KR102340745 B1 KR 102340745B1 KR 1020140193121 A KR1020140193121 A KR 1020140193121A KR 20140193121 A KR20140193121 A KR 20140193121A KR 102340745 B1 KR102340745 B1 KR 102340745B1
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Abstract
Description
도 2는 본 발명의 다른 예시적인 실시형태에 따라 저유전 유기 절연막을 포함하는 표시 장치의 예로서 유기발광다이오드 표시장치를 개략적으로 도시한 단면도이다.
도 3a 내지 도 3c는 아크릴레이트계 바인더 수지로 제조된 유기 절연막에 대한 Cross-Cut tape test에 따라 기재로부터의 박리 여부를 촬영한 사진으로, 각각 기공성 초분자가 바인더 수지에 도입된 유기 절연막, 기공성 초분자가 첨가되지 않은 유기 절연막 및 기공성 초분자가 단순 배합된 유기 절연막을 대상으로 한 것이다.
도 4a 내지 도 4c는 우레탄아크릴레이트폴리실록산계 수지로 제조된 유기 절연막에 대한 Cross-Cut tape test에 따라 기재로부터의 박리 여부를 촬영한 사진으로, 각각 기공성 초분자가 바인더 수지에 도입된 유기 절연막, 기공성 초분자가 첨가되지 않은 유기 절연막 및 기공성 초분자가 단순 배합된 유기 절연막을 대상으로 한 것이다.
도 5a 내지 도 5c는 아크릴레이트계 수지로 제조된 유기 절연막에 대한 박리 강도(peel strength)를 측정한 결과를 도시한 그래프로서, 각각 기공성 초분자가 바인더 수지에 도입된 유기 절연막, 기공성 초분자가 첨가되지 않은 유기 절연막, 및 기공성 초분자가 단순 배합된 유기 절연막을 대상으로 한 것이다.
도 6a 내지 도 6c는 우레탄아크릴레이트폴리실록산계 수지로 제조된 유기 절연막에 대한 박리 강도를 측정한 결과를 도시한 그래프로서, 각각 기공성 초분자가 바인더 수지에 도입된 유기 절연막, 기공성 초분자가 첨가되지 않은 유기 절연막 및 기공성 초분자가 단순 배합된 유기 절연막을 대상으로 한 것이다.
유전율 | Cross-Cut | 박리 강도(N/m) | |
실시예 1 (아크릴 수지에 기공성 초분자 도입) |
3.01±0.2 | 박리 없음 | 411 |
실시예 2 (우레탄아크릴실록산 수지에 기공성 초분자 도입 |
2.66±0.3 | 박리 없음 | 550 |
비교예 1 (아크릴 수지) | 3.38±0.1 | 약간 뜯김 | 339 |
비교예 2 (아크릴 수지에 기공성 초분자 단순 배합) |
3.21±1.3 | 약 5% 뜯김 | 336 |
비교예 3 (우레탄아크릴실록산 수지) | 3.12±0.1 | 약간 뜯김 | 116 |
비교예 4 (우레탄아크릴실록산 수지에 기공성 초분자 단순 배합) |
2.98±1.0 | 약간 뜯김 | 106 |
102, 202: 제 2 기판 110: 액정층
122, 222: 게이트 전극 124, 224: 게이트 절연막
126, 226: 반도체층 128, 228: 제 1 보호층
129, 229: 제 2 보호층 132, 232: 소스 전극
134, 234: 드레인 전극 140: 화소전극
150: 공통전극 210: 유기발광소자
252: 제 1 전극 253: 뱅크층
254: 유기발광층 256: 제 2 전극
280: 패시베이션층 Tr: 박막트랜지스터
TrA: 스위칭 영역 P: 화소영역
DR: 표시 영역 NDR: 비표시 영역
DTr: 구동 박막트랜지스터 E: 유기발광다이오드
Claims (11)
- 삭제
- 삭제
- 삭제
- 다수의 신호 라인이 배열되는 제 1 기판;
상기 제 1 기판 상에 위치하는 박막트랜지스터;
상기 박막트랜지스터 상에 위치하는 유기 절연막; 및
상기 유기 절연막 상에 위치하는 제 1 전극을 포함하며,
상기 유기 절연막은 사이클로덱스트린, 쿠커비투릴(cucurbituril), 칼릭스아렌(calixarene), 이들의 유도체 및 이들의 조합으로 구성되는 군에서 선택되는 기공성 초분자가 측쇄에 도입되어 있는 바인더 수지를 포함하는 표시 장치.
- 제 4항에 있어서,
상기 바인더 수지는 (메타)아크릴레이트 수지, 우레탄 수지, 폴리실록산 수지 및 이들의 공중합체로 구성되는 군에서 선택되는 표시 장치.
- 삭제
- 제 4항 내지 제 5항 중 어느 하나의 항에 있어서,
상기 제 1 기판에 대향하는 제 2 기판과, 상기 제 1 기판과 상기 제 2 기판 사이에 개재되는 액정층을 더욱 포함하는 표시 장치.
- 제 7항에 있어서,
상기 제 1 전극과 대응하여 다수의 개구부를 갖는 제 2 전극과, 상기 제 1 전극과 상기 제 2 전극 사이에 위치하는 보호층을 더욱 포함하며, 상기 보호층은 상기 유기 절연막과 동일한 물질로 이루어지는 표시 장치.
- 제 4항 내지 제 5항 중 어느 하나의 항에 있어서,
상기 제 1 전극 상에 위치하는 뱅크층, 유기발광층 및 상기 제 1 전극과 대향하는 제 2 전극을 더욱 포함하며,
상기 뱅크층은 상기 유기 절연막과 동일한 물질로 이루어지는 표시 장치. - 제 4항 또는 제 5항에 있어서,
상기 바인더 수지는 하기 화학식 (Ⅰ)로 표시되는 반복 단위를 갖는 표시 장치.
(화학식 (Ⅰ)에서, R1은 수소 또는 메틸기; R2 및 R3는 각각 독립적으로 치환 또는 비치환된 탄소수 1~20의 알킬렌, 치환 또는 비치환된 탄소수 4~20의 사이클로알킬렌, 및 치환 또는 비치환된 탄소수 6~20의 아릴렌으로 구성되는 군에서 선택됨; R4는 탄소수 1~20의 치환 또는 비치환된 알킬기, 탄소수 2~20의 알케닐기, 탄소수 1~20의 알콕시기, 탄소수 1~20의 아실기, 탄소수 4~20의 사이클로알킬기, 탄소수 6~20의 아릴기 및 탄소수 6~20의 아랄킬기로 구성되는 군에서 선택됨; x는 2~10000의 정수; A는 바인더 수지에 도입된 기공성 초분자로서, 사이클로덱스트린, 쿠커비투릴(cucurbituril), 칼릭스아렌(calixarene), 이들의 유도체 및 이들의 조합으로 구성되는 군에서 선택됨)
- 제 4항 또는 제 5항에 있어서,
상기 기공성 초분자는 하기 화학식 (Ⅱ) 내지 하기 화학식 (Ⅳ)로 표시되는 적어도 하나의 화합물을 포함하는 표시 장치.
(화학식 (Ⅱ)에서, R5 내지 R7은 각각 독립적으로 수소 원자, 탄소수 1~20의 알킬기, 탄소수 1~20의 아실기, 탄소수 3~10의 사이클로알킬기, 탄소수 1~20의 히드록시알킬기, 카르복시기, 또는 Sir1r2r3로 표시되는 규소 분자로서, r1, r2, r3는 각각 독립적으로 수소 원자, 탄소수 1~5의 알킬기, 탄소수 1~5의 알콕시기 또는 탄소수 6~20의 아릴기임; m은 단위 유닛의 개수로서 5 내지 8의 정수임)
(화학식 (Ⅲ)에서, R8과 R9은 각각 독립적으로 수소 원자, 탄소수 1~30의 알킬기, 탄소수 2~30의 알케닐기, 탄소수 2~30의 알키닐기, 탄소수 1~30의 알킬티오기, 탄소수 1~30의 알킬카르복실기, 탄소수 1~30의 하이드록시알킬기, 탄소수 1~30의 알킬실릴기, 탄소수 1~30의 알콕시기, 탄소수 1~30의 할로알킬기, 니트로기, 탄소수 1~30의 알킬아민기, 아민기, 탄소수 1~30의 아미노알킬기, 탄소수 5~30의 (헤테로)사이클로알킬기 및 탄소수 6~15의 (헤테로)아릴기로 구성되는 군에서 선택됨; Y는 O, S 또는 NH임; n은 글리코루릴 단위 유닛의 개수로서, 4 내지 20의 정수임)
(화학식 (Ⅳ)에서, R10은 수소원자 또는 탄소수 1~20의 알킬기임; R11은 수소 원자, 탄소수 1~10의 알킬기, 탄소수 2~30의 아실기, 탄소수 3~10의 사이클로알킬기, 탄소수 1~20의 카르복시기, 탄소수 1~20의 에스테르기 또는 Sir1r2r3로 표시되는 규소 분자로서, r1, r2, r3는 각각 독립적으로 수소 원자, 탄소수 1~5의 알킬기, 탄소수 1~5의 알콕시기 또는 탄소수 6~20의 아릴기임; o는 단위 유닛의 개수로서 3 내지 7의 정수임)
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