KR102281844B1 - 박막 트랜지스터 표시판 및 그 제조 방법 - Google Patents
박막 트랜지스터 표시판 및 그 제조 방법 Download PDFInfo
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Abstract
Description
도 2는 도 3의 Ⅳ-Ⅳ선에 따라 자른 단면도이다.
도 3 내지 도 10은 본 발명의 실시예에 따른 박막 트랜지스터 표시판의 제조 방법을 차례로 도시한 단면도이다.
도 11은 본 발명의 실시예와 대비하기 위한 비교예에 따른 박막 트랜지스터 표시판의 단면도이다.
81, 82: 접촉 보조 부재
83: 연결 다리
100: 박막 트랜지스터 표시판
110: 기판
121: 게이트선
124, 124a, 124b: 게이트 전극
131: 유지 전극선
133a, 133b: 유지 전극
140: 게이트 절연막
151, 154: (진성) 반도체
171, 179: 데이터선
175: 드레인 전극
180: 보호막
185: 접촉구
191: 화소 전극
200: 공통 전극 표시판
220: 차광 부재
230R, 230G, 230B: 색 필터
270: 공통 전극
Claims (16)
- 기판 상에 절연되어 교차하도록 형성된 게이트선 및 데이터선에 연결되어 있는 박막 트랜지스터;
상기 박막 트랜지스터 위에 형성된 제1 컬러 필터;
상기 제1 컬러 필터와 일부 중첩하는 제2 컬러 필터;
상기 제1 컬러 필터 및 상기 제2 컬러 필터를 덮는 보호막;
상기 보호막 위이며, 상기 제1 컬러 필터 및 상기 제2 컬러 필터와 중첩하는 영역에 형성된 제1 화소 전극; 및
상기 제1 화소 전극 위에 형성됨과 아울러 상기 박막트랜지스터의 드레인 전극과 접속한 제2 화소 전극을 포함하고,
상기 제1 화소 전극은 상기 드레인 전극과 직접적으로 접촉하지 않는, 박막 트랜지스터 표시판. - 제1항에 있어서,
상기 제1 화소 전극 및 상기 제2 화소 전극은 동일 물질인, 박막 트랜지스터 표시판. - 제2항에 있어서,
상기 제1 화소 전극 및 상기 제2 화소 전극은 산화인듐아연(IZO)을 이용하는, 박막 트랜지스터 표시판. - 제1항에 있어서,
상기 제1 화소 전극은 300Å이하의 두께로 형성되는, 박막 트랜지스터 표시판. - 제1항에 있어서,
상기 제1 컬러 필터 및 상기 제2 컬러 필터 위에는 상기 제1 화소 전극 및 상기 제2 화소 전극이 순차적으로 형성된, 박막 트랜지스터 표시판. - 제1항에 있어서,
상기 제2 화소 전극은 상기 박막트랜지스터의 드레인 전극과 물리적으로 연결된, 박막 트랜지스터 표시판. - 기판 상에 절연되어 교차하도록 형성된 게이트선과 데이터선에 연결된 박막 트랜지스터를 형성하는 단계;
상기 박막 트랜지스터 위에 제1 컬러 필터를 형성하는 단계;
상기 박막 트랜지스터 위에 상기 제1 컬러 필터와 일부 중첩하는 제2 컬러 필터를 형성하는 단계;
상기 제1 컬러 필터 및 상기 제2 컬러 필터를 덮는 보호막을 형성하는 단계;
상기 보호막 위이며, 상기 제1 컬러 필터 및 상기 제2 컬러 필터와 중첩하는 영역에 제1 화소 전극을 형성하는 단계; 및
상기 제1 화소 전극 위이며, 상기 박막 트랜지스터의 드레인 전극과 접속한 제2 화소 전극을 형성하는 단계를 포함하고,
상기 제1 화소 전극을 형성하는 단계는,
상기 보호막 전면에 제1 화소 전극을 형성하는 단계;
상기 제1 화소 전극 위에 감광막을 형성하는 단계;
상기 감광막에서 상기 박막 트랜지스터의 드레인 전극과 중첩하는 일정 영역을 식각하는 단계; 및
상기 보호막 위에서 상기 박막 트랜지스터의 드레인 전극과 중첩하는 영역에 형성된 상기 제1 화소 전극을 식각하는 단계를 포함하는, 박막 트랜지스터 표시판의 제조 방법. - 삭제
- 제7항에 있어서,
상기 제1 화소 전극의 식각 단계는 습식 식각 공정으로 진행하는, 박막 트랜지스터 표시판의 제조 방법. - 제7항에 있어서,
상기 박막트랜지스터의 드레인 전극 위에 형성된 상기 보호막을 식각하는 단계를 더 포함하는, 박막 트랜지스터 표시판의 제조 방법. - 제10항에 있어서,
상기 보호막의 식각 단계는 건식 식각 공정으로 진행하는, 박막 트랜지스터 표시판의 제조 방법. - 제10항에 있어서,
상기 제2 화소 전극을 형성하는 단계는,
상기 제1 화소 전극 위에 형성된 상기 감광막을 박리하는 단계; 및
상기 감광막이 박리된 상기 제1 화소 전극 및 상기 박막트랜지스터의 드레인 전극을 덮는 상기 제2 화소 전극을 형성하는 단계를 포함하는, 박막 트랜지스터 표시판의 제조 방법. - 제12항에 있어서,
상기 보호막 위에 형성된 상기 제1 화소 전극 및 상기 제2 화소 전극에 대해 화소 전극 패터닝을 수행하는 단계를 더 포함하는, 박막 트랜지스터 표시판의 제조 방법. - 제7항에 있어서,
상기 제1 화소 전극 및 상기 제2 화소 전극은 동일 물질인, 박막 트랜지스터 표시판의 제조 방법. - 제14항에 있어서,
상기 제1 화소 전극 및 상기 제2 화소 전극은 산화인듐아연(IZO)을 이용하는, 박막 트랜지스터 표시판의 제조 방법. - 제7항에 있어서,
상기 제1 화소 전극을 형성하는 단계는 상기 보호막 위에 상기 제1 화소 전극의 두께를 300Å이하로 형성하는, 박막 트랜지스터 표시판의 제조 방법.
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US14/740,433 US9541811B2 (en) | 2015-01-02 | 2015-06-16 | Thin film transistor array panel and manufacturing method thereof |
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KR20170031620A (ko) * | 2015-09-11 | 2017-03-21 | 가부시키가이샤 한도오따이 에네루기 켄큐쇼 | 표시 장치 및 그 제작 방법 |
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JP2002341363A (ja) | 2001-05-15 | 2002-11-27 | Matsushita Electric Ind Co Ltd | アクティブマトリックス基板およびその製造方法 |
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US20160195746A1 (en) | 2016-07-07 |
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