[특허]Polymer-dispersed liquid crystal material with in-situ polymerized liquid crystal polymer grains dispersed in a layer of

Polymer-dispersed liquid crystal material with in-situ polymerized liquid crystal polymer grains dispersed in a layer of 원문보기

IPC분류정보
국가/구분	United States(US) Patent 등록
국제특허분류(IPC7판)	G02F-001/133
출원번호	US-0798478 (1991-11-26)
우선권정보	JP-0321779 (1990-11-26); JP-0018750 (1991-02-12); JP-0026024 (1991-02-20); JP-0026025 (1991-02-20); JP-0259126 (1991-03-22); JP-0118619 (1991-05-23); JP-0136170 (1991-06-07); JP-0140008 (1991-06-12); JP-0144
발명자 / 주소	Kobayashi Hidekazu (Suwa JPX) Samizu Kiyohiro (Suwa JPX) Wu Jin-Jei (Suwa JPX)
출원인 / 주소	Seiko Epson Corporation (Tokyo JPX 03)
인용정보	피인용 횟수 : 66 인용 특허 : 0

초록 ▼

A polymer dispersed liquid crystal material (PDLC) device is fabricated by sealing a composite layer mixture of components comprising a polymer and liquid crystal material while both are in their liquid phase in a gap portion formed between two substrates of the device. A predetermined directional alignment is transmitted to the polymer via the liquid crystal material by means, for example, of formed directional alignment on surfaces in contact with the composite layer, such as, by deposited alignment films on a surface of at least one of the substrates. The predetermined directional alignment of the polymer is thereafter fixed by means of a polymer hardening method, such as, for example, by polymerization of a polymer precursor, so that the predetermined directional alignment of the polymer is permanently retain within the liquid crystal material, i.e., the polymer is in a solid phase and the liquid crystal material remains in its liquid phase. For better results, a chiral component and/or a light absorbing component may be added to the liquid crystal material.

대표청구항 ▼

A method of fabricating a polymer dispersed liquid crystal display having a polymer dispersed liquid crystal medium formed in a gap portion in said display comprising the steps of: forming a mixture of liquid crystal material and thermoplastic polymer to cause said liquid crystal material and polymer to be soluble in one other; injecting said soluble mixture in the gap portion, aligning the liquid crystal material and polymer in a predetermined direction while said mixture remains in its soluble state; and causing said mixture to bring about a phase separation between the liquid crystal material and the polymer forming polymer grains dispersed throughout the liquid crystal material retaining their original alignment in said predetermined direction. A polymer dispersed liquid crystal device comprising a mixture of in-situ fixation of pre-aligned polymer grains dispersed in a layer of liquid crystal medium sealed by at least one substrate in contact with said mixture.

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IPC	Description
A	생활필수품
A62	인명구조; 소방(사다리 E06C)
A62B	인명구조용의 기구, 장치 또는 방법(특히 의료용에 사용되는 밸브 A61M 39/00; 특히 물에서 쓰이는 인명구조 장치 또는 방법 B63C 9/00; 잠수장비 B63C 11/00; 특히 항공기에 쓰는 것, 예. 낙하산, 투출좌석 B64D; 특히 광산에서 쓰이는 구조장치 E21F 11/00)
A62B-1/08	.. 윈치 또는 풀리에 제동기구가 있는 것

내보내기 구분	파일저장 인쇄 메일전송
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저장형식	Text(ASCII format) Excel format PIAS분석(.xls)
메일정보	받는사람 (필수) @ 보내는사람 (선택) @ 제목 내용 KISTI 검색결과 이메일 서비스
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연합인증

Polymer-dispersed liquid crystal material with in-situ polymerized liquid crystal polymer grains dispersed in a layer of 원문보기

초록 ▼

대표청구항 ▼

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연합인증

Polymer-dispersed liquid crystal material with in-situ polymerized liquid crystal polymer grains dispersed in a layer of 원문보기

초록 ▼

대표청구항 ▼

연구과제 타임라인

전체(0) 논문(0) 특허(0) 보고서(0)

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이 특허를 인용한 특허 (66)

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