KR101933220B1 - 편광 소자, 원편광판 및 이들의 제조 방법 - Google Patents
편광 소자, 원편광판 및 이들의 제조 방법 Download PDFInfo
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- KR101933220B1 KR101933220B1 KR1020120072051A KR20120072051A KR101933220B1 KR 101933220 B1 KR101933220 B1 KR 101933220B1 KR 1020120072051 A KR1020120072051 A KR 1020120072051A KR 20120072051 A KR20120072051 A KR 20120072051A KR 101933220 B1 KR101933220 B1 KR 101933220B1
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- 239000011701 zinc Substances 0.000 description 1
- 239000011787 zinc oxide Substances 0.000 description 1
- XLOMVQKBTHCTTD-UHFFFAOYSA-N zinc oxide Inorganic materials [Zn]=O XLOMVQKBTHCTTD-UHFFFAOYSA-N 0.000 description 1
- 229910052726 zirconium Inorganic materials 0.000 description 1
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Abstract
상기 해결 수단으로서, 투명 기재 상에 광배향층 및 편광층이 이 순서로 형성된 편광자이며, 상기 광배향층이 광반응성 기를 갖는 폴리머로부터 형성된 것이고, 상기 편광층이 중합성 스메틱 액정 화합물 및 이색성 색소를 함유하는 조성물로 형성된 것인 편광 소자, 이 편광 소자의 편광층 상에 위상차층을 더 설치한 원편광판 또는 상기 편광 소자의 투명 기재를 위상차 필름으로 대체한 원편광판을 제공한다.
Description
도 2는 본 발명의 편광 소자의 제조 방법의 주요부를 도시하는 단면 모식도이다.
도 3은 광 배향 조작에 있어서, 제1 건조 피막에 편광 UV를 조사하는 방법을 도시하는 모식도이다.
도 4는 본 발명의 편광 소자의 연속적 제조 방법(Roll to Roll 형식)의 주요부를 도시하는 모식 단면도이다.
도 5는 광배향층의 배향 방향 D2와, 필름의 반송 방향 D1의 관계를 모식적으로 나타낸 도면이다.
도 6은 본 발명의 편광 소자를 이용한 액정 표시 장치의 단면 구성을 도시하는 모식 단면도이다.
도 7은 액정 표시 장치에 설치된 본 발명의 편광 소자의 층 순서를 도시하는 확대 모식 단면도이다.
도 8은 액정 표시 장치에 설치된 본 발명의 편광 소자의 층 순서를 도시하는 확대 모식 단면도이다.
도 9는 본 발명의 편광 소자를 이용한 액정 표시 장치(인셀 형식)의 단면 구성을 도시하는 모식 단면도이다.
도 10은 본 발명의 원편광판의 가장 간단한 구성을 도시하는 단면 모식도이다.
도 11은 본 발명의 원편광판의 연속적 제조 방법의 주요부를 도시하는 모식 단면도이다.
도 12는 본 발명의 편광 소자를 이용한 EL 표시 장치의 단면 구성을 도시하는 모식 단면도이다.
도 13은 EL 표시 장치에 설치된 본 발명의 편광 소자의 층 순서를 도시하는 확대 모식 단면도이다.
도 14는 본 발명의 편광 소자를 이용한 EL 표시 장치의 단면 구성을 도시하는 모식 단면도이다.
도 15는 본 발명의 편광 소자를 이용한 투사형 액정 표시 장치의 단면 구성을 도시하는 모식 단면도이다.
3 : 편광층 100 : 본 편광 소자
110 : 본 원편광판 101 : 제1 적층체
102 : 제2 적층체 103 : 제3 적층체
210 : 제1 롤 210A : 권심
220 : 제2 롤 220A : 권심
211A, 211B : 도포 장치 212A, 212B : 건조로
213A : 편광 UV 조사 장치 213B : 광 조사 장치
300 : 보조 롤 10 : 액정 표시 장치
12a, 12b : 편광자(본 편광 소자) 13a, 13b : 위상차층(위상차 필름)
14a, 14b : 기판 15 : 컬러 필터
16 : 투명 전극 17 : 액정층
18 : 층간 절연막 20 : 블랙 매트릭스
21 : 박막 트랜지스터 22 : 화소 전극
23 : 스페이서 24 : 액정 표시 장치
30 : EL 표시 장치 31 : 원편광판
33 : 기판 34 : 층간 절연막
35 : 화소 전극 36 : 발광층
37 : 캐소드 전극 38 : 건조제
39 : 밀봉 뚜껑 40 : 박막 트랜지스터
41 : 리브 42 : 박막판
44 : EL 표시 장치 111 : 광원
112 : 제1 렌즈 어레이 112a : 렌즈
113 : 제2 렌즈 어레이 114 : 편광 변환 소자
115 : 중첩 렌즈 121, 123, 132 : 다이크로익 미러
122 : 반사 미러 140R, 140G, 140B : 액정 패널
142, 143 : 편광자 150 : 크로스 다이크로익 프리즘
170 : 투사 렌즈 180 : 스크린
Claims (17)
- 투명 기재 상에, 광배향층 및 편광층이 이 순서로 형성된 편광자이며,
상기 광배향층이, 광반응성 기를 갖는 폴리머로부터 형성된 것이고,
상기 편광층이, 중합성 스메틱 액정 화합물 및 이색성 색소를 함유하는 조성물로 형성된 것이며,
상기 중합성 스메틱 액정 화합물은 아크릴로일옥시기를 갖는 것이고,
상기 광반응성 기는 칼콘기 또는 신나모일기인 것인 편광 소자. - 제1항에 있어서, 상기 편광층이, X선 반사 측정에 있어서 블랙 피크를 얻을 수 있는 편광층인 편광 소자.
- 제1항 또는 제2항에 있어서, 상기 조성물이, 중합성 스메틱 액정 화합물을 2종 이상 포함하는 편광 소자.
- 제1항 또는 제2항에 기재된 편광 소자의 제조 방법으로서,
상기 투명 기재 상에,
상기 광반응성 기를 갖는 폴리머와 용제를 함유하는 조성물을 도포하여, 상기 투명 기재 상에 제1 도포막을 형성하는 공정과,
상기 제1 도포막으로부터 상기 용제를 건조 제거함으로써, 상기 투명 기재 상에 제1 건조 피막을 형성하여, 제1 적층체를 얻는 공정과,
상기 제1 건조 피막에 편광 UV를 조사함으로써, 상기 제1 건조 피막으로부터 광배향층을 형성하여 제2 적층체를 얻는 공정과,
상기 제2 적층체에 있는 상기 광배향층 상에, 중합성 스메틱 액정 화합물, 이색성 색소 및 용제를 함유하는 조성물을 도포하여, 상기 광배향층 상에 제2 도포막을 형성하는 공정과,
상기 제2 도포막을, 상기 제2 도포막 속에 포함되는 상기 중합성 스메틱 액정 화합물이 중합되지 않는 조건에서 건조함으로써, 상기 광배향층 상에 제2 건조 피막을 형성하여 제3 적층체를 얻는 공정과,
상기 제2 건조 피막 중의 상기 중합성 스메틱 액정 화합물을 스메틱 액정 상태로 한 후, 상기 스메틱 액정 상태를 유지한 채로, 상기 중합성 스메틱 액정 화합물을 중합시킴으로써, 상기 제2 건조 피막으로부터 편광층을 형성하는 공정을 갖는 제조 방법. - 제1항 또는 제2항에 있어서, 형상이, 필름형이고 장척형인 편광 소자.
- 제6항에 기재된 편광 소자의 제조 방법으로서,
투명 기재가 제1 권심에 권취되어 있는 제1 롤을 준비하는 공정과,
상기 제1 롤로부터, 상기 투명 기재를 연속적으로 송출하는 공정과,
상기 광반응성 기를 갖는 폴리머와 용제를 함유하는 조성물을 도포하여, 상기 투명 기재 상에 제1 도포막을 연속적으로 형성하는 공정과,
상기 제1 도포막으로부터 상기 용제를 건조 제거함으로써, 상기 투명 기재 상에 제1 건조 피막을 형성하여, 제1 적층체를 연속적으로 얻는 공정과,
상기 제1 건조 피막에 편광 UV를 조사함으로써, 상기 제1 적층체의 반송 방향에 대하여, 45°의 각도에 배향 방향을 갖는 광배향층을 형성하여, 제2 적층체를 연속적으로 얻는 공정과,
상기 광배향층 상에, 중합성 스메틱 액정 화합물, 이색성 색소 및 용제를 함유하는 조성물을 도포하여, 상기 광배향층 상에 제2 도포막을 연속적으로 형성하는 공정과,
상기 제2 도포막을, 상기 제2 도포막 속에 포함되는 상기 중합성 스메틱 액정 화합물이 중합되지 않는 조건에서 건조함으로써, 상기 광배향층 상에 제2 건조 피막을 형성하여 제3 적층체를 연속적으로 얻는 공정과,
상기 제2 건조 피막 중에 포함되는 상기 중합성 스메틱 액정 화합물을 스메틱 액정 상태로 한 후, 상기 스메틱 액정 상태를 유지한 채로, 상기 중합성 스메틱 액정 화합물을 중합시킴으로써, 상기 제3 적층체의 반송 방향에 대하여, 45°의 각도에 흡수축을 갖는 편광층을 형성하여, 편광 소자를 연속적으로 얻는 공정과,
연속적으로 얻어진 편광 소자를 제2 권심에 권취하여, 제2 롤을 얻는 공정을 갖는 제조 방법. - 제1항 또는 제2항에 기재된 편광 소자를 구비한 액정 표시 장치.
- 제1항 또는 제2항에 기재된 편광 소자를, 액정 셀 내부에 배치함으로써 구비한 액정 표시 장치.
- 제1항 또는 제2항에 기재된 편광 소자와 위상차 필름을, 상기 편광층의 흡수축과 상기 위상차 필름의 지상축이 이루는 각도가 45°가 되도록 적층한 원편광판이며,
파장 550 nm의 빛으로 측정한 타원율의 값이 80% 이상이고,
상기 위상차 필름이, 파장 550 nm의 빛으로 측정한 정면 리타데이션 값이 100∼150 nm 범위의 필름인 원편광판. - 제10항에 있어서, 상기 위상차 필름이, 가시광에 대한 정면 리타데이션 값이, 파장이 짧아짐에 따라서 작아지는 특성을 갖는 원편광판.
- 제10항에 있어서, 형상이, 필름형이고 장척형인 원편광판.
- 제12항에 기재된 원편광판의 제조 방법으로서,
위상차 필름이 제3 권심에 권취되어 있는 제3 롤을 준비하는 공정과,
상기 편광 소자가 제2 권심에 권취되어 있는 제2 롤을 준비하는 공정과,
상기 제2 롤로부터 상기 편광 소자를 연속적으로 권출하는 동시에, 상기 제3롤로부터 상기 위상차 필름을 연속적으로 권출하는 공정과,
연속적으로 권출된 편광 소자의 편광층과, 연속적으로 권출된 위상차 필름을 접합시키는 공정을 갖는 제조 방법. - 제1항 또는 제2항에 기재된 편광 소자에 포함되는 투명 기재를 위상차성을 갖는 위상차 필름으로 대체하여, 상기 위상차 필름의 지상축과 상기 편광층의 흡수축이 이루는 각도가 45°로 적층하여 이루어지는 원편광판으로서,
파장 550 nm의 빛으로 측정한 타원율의 값이 80% 이상이고,
상기 위상차 필름이, 파장 550 nm의 빛으로 측정한 정면 리타데이션 값이 100∼150 nm 범위의 필름인 원편광판. - 제14항에 있어서, 형상이, 필름형이고 장척형인 원편광판.
- 제15항에 기재된 원편광판의 제조 방법으로서,
위상차 필름이 제1 권심에 권취되어 있는 제1 롤을 준비하는 공정과,
상기 제1 롤로부터 상기 위상차 필름을 연속적으로 송출하는 공정과,
상기 광반응성 기를 갖는 폴리머와 용제를 함유하는 조성물을 도포하여, 상기 위상차 필름 상에 제1 도포막을 연속적으로 형성하는 공정과,
상기 제1 도포막으로부터 상기 용제를 건조 제거하여, 상기 투명 기재 상에 제1 건조 피막을 형성하여, 제1 적층체를 연속적으로 얻는 공정과,
상기 제1 건조 피막에 편광 UV를 조사함으로써, 상기 제1 적층체의 반송 방향에 대하여, 45° 각도에 배향 방향을 갖는 광배향층을 형성하여, 제2 적층체를 연속적으로 얻는 공정과,
상기 광배향층 상에, 중합성 스메틱 액정 화합물, 이색성 색소, 중합 개시제 및 용제를 함유하는 조성물을 도포하여, 상기 광배향층 상에 제2 도포막을 연속적으로 형성하는 공정과,
상기 제2 도포막을, 상기 제2 도포막 속에 포함되는 상기 중합성 스메틱 액정 화합물이 중합되지 않는 조건에서 건조함으로써, 상기 광배향층 상에 제2 건조 피막을 형성하여 제3 적층체를 연속적으로 얻는 공정과,
상기 제2 건조 피막 중에 포함되는 상기 중합성 스메틱 액정 화합물을 스메틱 액정 상태로 한 후, 상기 스메틱 액정 상태를 유지한 채로, 상기 중합성 스메틱 액정 화합물을 중합시킴으로써, 상기 제3 적층체의 반송 방향에 대하여, 45°의 각도에 흡수축을 갖는 편광층을 형성하여, 원편광판을 연속적으로 얻는 공정과,
연속적으로 얻어진 원편광판을 제2 권심에 권취하여, 제2 롤을 얻는 공정을 갖는 제조 방법. - 제10항에 기재된 원편광판과, 유기 EL 소자를 구비한 유기 EL 표시 장치.
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TW201307909A (zh) | 2013-02-16 |
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CN107526128A (zh) | 2017-12-29 |
KR102059755B1 (ko) | 2019-12-27 |
KR20190003932A (ko) | 2019-01-10 |
CN103033868A (zh) | 2013-04-10 |
JP7269908B2 (ja) | 2023-05-09 |
KR20130006318A (ko) | 2013-01-16 |
CN107526128B (zh) | 2020-07-31 |
JP2013033249A (ja) | 2013-02-14 |
CN103033868B (zh) | 2017-10-13 |
JP2017102479A (ja) | 2017-06-08 |
JP2023029482A (ja) | 2023-03-03 |
TWI563294B (ko) | 2016-12-21 |
JP2021021954A (ja) | 2021-02-18 |
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