KR20190021517A - 액정 표시 장치 및 이의 제조 방법 - Google Patents
액정 표시 장치 및 이의 제조 방법 Download PDFInfo
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- KR20190021517A KR20190021517A KR1020170106151A KR20170106151A KR20190021517A KR 20190021517 A KR20190021517 A KR 20190021517A KR 1020170106151 A KR1020170106151 A KR 1020170106151A KR 20170106151 A KR20170106151 A KR 20170106151A KR 20190021517 A KR20190021517 A KR 20190021517A
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- 238000000034 method Methods 0.000 claims description 29
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Abstract
Description
도 2는 본 발명의 다른 일 실시예에 따른 액정 표시를 간략히 나타낸 단면도이다.
도 3은 상하부 배향막에 인접한 액정 분자의 선경사각을 동일하게 한 경우 오정렬에 의한 텍스처 불량을 설명하는 도면이다
도 4는 화학식 1로 표시되는 수직 배향 첨가제와 벤조페논 광개시제의 흡수 스펙트럼 비교 결과이다.
도 5는 화학식 2로 표시되는 수직 배향 첨가제와 벤조페논 광개시제의 흡수 스펙트럼 비교 결과이다.
도 6은 화학식 3으로 표시되는 수직 배향 첨가제와 벤조페논 광개시제의 흡수 스펙트럼 비교 결과이다.
도 7은 화학식 4로 표시되는 수직 배향 첨가제와 벤조페논 광개시제의 흡수 스펙트럼 비교 결과이다.
도 8은 화학식 5로 표시되는 수직 배향 첨가제와 벤조페논 광개시제의 흡수 스펙트럼 비교 결과이다.
도 9는 일 실시예에 따른 액정 표시 장치의 일 화소의 평면 배치도이다.
도 10은 도 9의 IX-IX선을 따라 자른 단면도이다.
도 11 내지 도 13은 본 발명의 일 실시예에 따른 제조 공정을 나타낸 공정 단면도이다.
Pretilt (degree) |
투과율 Simulation (a.u.) |
휘도변화량 | |||
하판 | 상판 | 차이 | 정렬 | 30 um M/A | |
89.0 | 90.0 | 1.0 | 0.17072 | 0.17072 | 0.0% |
89.8 | 0.8 | 0.17191 | 0.16988 | -1.2% | |
89.5 | 0.5 | 0.17339 | 0.16651 | -4.0% | |
89.2 | 0.2 | 0.17459 | 0.1625 | -6.9% | |
89.0 | 0.0 | 0.17527 | 0.15955 | -9.0% |
13: 돌기 15: 반응성 메조겐
210: 제2 기판 25: 수직 배향 첨가제
Claims (30)
- 제1 기판;
상기 제1 기판과 중첩하며 이격된 제2 기판;
상기 제1 기판과 상기 제2 기판 사이에 위치하며 액정 분자들을 포함하는 액정층;
상기 제1 기판과 상기 액정층 사이에 위치하는 제1 배향막;
상기 제1 배향막과 상기 액정층 사이에 위치하는 복수의 돌기를 포함하며,
상기 제1 배향막은 광개시제를 포함하고,
상기 복수의 돌기는 상기 광개시제, 반응성 메조겐 및 수직 배향 첨가제가 중합한 중합체이고,
상기 수직 배향 첨가제는 상기 광개시제에 비하여 반응성이 낮은 액정 표시 장치. - 제1항에서,
상기 광개시제는 벤조페논인 액정 표시 장치. - 제1항에서,
상기 액정 표시 장치는 곡면형인 액정 표시 장치. - 제1항에서,
상기 제2 기판과 상기 액정층 사이에 돌기가 위치하지 않는 액정 표시 장치. - 제1항에서,
상기 제1 기판에 인접한 액정 분자들은 선경사각을 갖도록 배향되고,
상기 제2 기판에 인접한 액정 분자들은 기판에 수직한 방향으로 배향되는 액정 표시 장치. - 제5항에서,
상기 제1 기판에 인접한 액정 분자들과 상기 제2 기판에 인접한 액정 분자들의 선경사 차이가 0.2도 이상인 액정 표시 장치. - 제1항에서,
상기 수직 배향 첨가제는 일 끝에 히드록시기를 갖는 액정 표시 장치. - 제1 기판;
상기 제1 기판과 중첩하며 이격된 제2 기판;
상기 제1 기판과 상기 제2 기판 사이에 위치하며 액정 분자들을 포함하는 액정층;
상기 제1 기판과 상기 액정층 사이에 위치하는 제1 배향막;
상기 제1 배향막과 상기 액정층 사이에 위치하는 복수의 돌기를 포함하며,
상기 제1 배향막은 광개시제를 포함하고,
상기 복수의 돌기는 상기 광개시제, 반응성 메조겐 및 수직 배향 첨가제가 중합한 중합체이고,
상기 제2 기판과 상기 액정층 사이에 배향막이 위치하지 않는 액정 표시 장치. - 제11항에서,
상기 수직 배향 첨가제는 상기 광개시제 대비 반응성이 낮은 액정 표시 장치. - 제11항에서,
상기 수직 배향 첨가제는 일 끝에 히드록시기를 갖는 액정 표시 장치. - 제11항에서,
상기 액정 표시 장치는 곡면형인 액정 표시 장치. - 제11항에서,
상기 광개시제는 벤조페논인 액정 표시 장치. - 제11항에서,
상기 제2 기판과 상기 액정층 사이에 돌기가 위치하지 않는 액정 표시 장치. - 제11항에서,
상기 제1 기판에 인접한 액정 분자들은 선경사각을 갖도록 배향되고,
상기 제2 기판에 인접한 액정 분자들은 기판에 수직한 방향으로 배향되는 액정 표시 장치. - 제18항에서,
상기 제1 기판에 인접한 액정 분자들과 상기 제2 기판에 인접한 액정 분자들의 선경사 차이가 0.2도 이상인 액정 표시 장치. - 제1 배향막이 형성된 제1 기판을 준비하는 단계;
상기 제1 기판과 중첩하는 제2 기판을 준비하는 단계;
상기 제1 기판 및 상기 제2 기판 사이에 복수의 액정 분자, 반응성 메조겐 및 수직 배향 첨가제를 포함하는 액정층을 형성하는 단계; 및
상기 제1 기판 및 상기 제2 기판에 전계 UV를 조사하는 단계를 포함하며,
상기 제1 배향막은 광개시제를 포함하고,
상기 전계 UV를 조사하는 단계에 의해 상기 광개시제, 상기 반응성 메조겐 및 상기 수직 배향 첨가제가 중합하여 제1 배향막에 복수의 중합체 돌기를 형성하는 액정 표시 장치의 제조 방법. - 제21항에서,
상기 광개시제는 벤조페논인 액정 표시 장치의 제조 방법. - 제22항에서,
상기 수직 배향 첨가제는 상기 광개시제 대비 반응성이 낮은 액정 표시 장치의 제조 방법. - 제21항에서,
상기 수직 배향 첨가제의 함량은 액정층 총 중량에 대하여 0.1 중량% 내지 3 중량%인 액정 표시 장치의 제조 방법. - 제21항에서,
상기 전계 uv를 조사하는 단계 이후에
상기 제1 기판에 인접한 액정 분자들은 선경사각을 갖도록 배향되고,
상기 제2 기판에 인접한 액정 분자들은 기판에 수직한 방향으로 배향되는 액정 표시 장치의 제조 방법. - 제25항에서,
상기 제1 기판에 인접한 액정 분자들과 상기 제2 기판에 인접한 액정 분자들의 선경사 차이가 0.2도 이상인 액정 표시 장치의 제조 방법. - 제21항에서,
상기 수직 배향 첨가제는 일 끝에 히드록시기를 갖는 액정 표시 장치의 제조 방법. - 제21항에서,
상기 전계 UV를 조사하는 단계에서 사용되는 파장은 중심파장이 300 nm 내지 350 nm인 액정 표시 장치의 제조 방법.
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