DE69317378D1 - Reinigung von Flüssigkristallen, sowie Flüssigkristallzusammensetzung - Google Patents

Reinigung von Flüssigkristallen, sowie Flüssigkristallzusammensetzung

Info

Publication number
DE69317378D1
DE69317378D1 DE69317378T DE69317378T DE69317378D1 DE 69317378 D1 DE69317378 D1 DE 69317378D1 DE 69317378 T DE69317378 T DE 69317378T DE 69317378 T DE69317378 T DE 69317378T DE 69317378 D1 DE69317378 D1 DE 69317378D1
Authority
DE
Germany
Prior art keywords
cleaning
crystal composition
liquid
liquid crystal
crystals
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
Application number
DE69317378T
Other languages
English (en)
Other versions
DE69317378T2 (de
Inventor
Osamu Hirai
Noriji Tashiro
Osamu Watanabe
Hiroshi Nishizawa
Kenji Suzuki
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Resonac Corp
Original Assignee
Hitachi Chemical Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from JP5023140A external-priority patent/JPH06234974A/ja
Application filed by Hitachi Chemical Co Ltd filed Critical Hitachi Chemical Co Ltd
Publication of DE69317378D1 publication Critical patent/DE69317378D1/de
Application granted granted Critical
Publication of DE69317378T2 publication Critical patent/DE69317378T2/de
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
    • C09K19/00—Liquid crystal materials
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
    • C09K19/00—Liquid crystal materials
    • C09K19/52—Liquid crystal materials characterised by components which are not liquid crystals, e.g. additives with special physical aspect: solvents, solid particles
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
    • C09K2323/00—Functional layers of liquid crystal optical display excluding electroactive liquid crystal layer characterised by chemical composition
    • C09K2323/02—Alignment layer characterised by chemical composition
    • C09K2323/027—Polyimide

Landscapes

  • Chemical & Material Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Organic Chemistry (AREA)
  • Liquid Crystal Substances (AREA)
  • Liquid Crystal (AREA)
DE69317378T 1992-12-16 1993-12-15 Reinigung von Flüssigkristallen, sowie Flüssigkristallzusammensetzung Expired - Fee Related DE69317378T2 (de)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
JP33596192 1992-12-16
JP34678292 1992-12-25
JP5023140A JPH06234974A (ja) 1993-02-12 1993-02-12 液晶組成物、液晶セル及び液晶表示装置

Publications (2)

Publication Number Publication Date
DE69317378D1 true DE69317378D1 (de) 1998-04-16
DE69317378T2 DE69317378T2 (de) 1998-07-02

Family

ID=27284139

Family Applications (1)

Application Number Title Priority Date Filing Date
DE69317378T Expired - Fee Related DE69317378T2 (de) 1992-12-16 1993-12-15 Reinigung von Flüssigkristallen, sowie Flüssigkristallzusammensetzung

Country Status (4)

Country Link
US (2) US5422034A (de)
EP (1) EP0603731B1 (de)
KR (1) KR100303196B1 (de)
DE (1) DE69317378T2 (de)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5422034A (en) * 1992-12-16 1995-06-06 Hitachi Chemical Company, Ltd. Purification of liquid crystals and liquid crystal composition
DE69807371T2 (de) * 1997-03-06 2002-12-19 Mitsubishi Gas Chemical Co., Inc. Verfahren zur Reinigung von Flüssigkristallen
WO2001009675A1 (fr) * 1999-07-29 2001-02-08 Matsushita Electric Industrial Co., Ltd. Dispositif d'affichage a cristaux liquides et procede de fabrication
KR100960580B1 (ko) * 2002-09-26 2010-06-03 디아이씨 가부시끼가이샤 액정 재료를 재이용하기 위한 처리 방법
CN100417982C (zh) * 2005-10-18 2008-09-10 比亚迪股份有限公司 一种生产结存回收混合液晶再利用方法
JP4986071B2 (ja) * 2007-03-30 2012-07-25 国立大学法人東京工業大学 樹脂組成物、硬化物及び光学用部材
CN101381604B (zh) * 2008-10-17 2011-08-03 江苏和成化学材料有限公司 液晶单体或液晶组合物的纯化方法
US9469734B2 (en) * 2011-03-25 2016-10-18 Sabic Global Technologies B.V. Fast dissolving polyimide powders
DE102013020400A1 (de) * 2013-12-10 2015-06-11 Merck Patent Gmbh Reinigungsvorrichtung
US9562191B2 (en) 2015-04-01 2017-02-07 Citizen Finedevice Co., Ltd. Compositions and methods for removing ions from liquid crystal materials

Family Cites Families (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5553317A (en) * 1978-10-16 1980-04-18 Hitachi Ltd Liquid crystal display element
JPS5827285B2 (ja) * 1980-11-21 1983-06-08 三菱化学株式会社 多孔質焼結体
JPS57204512A (en) * 1981-06-11 1982-12-15 Sharp Corp Manufacture of liquid crystal display element
JPS581774A (ja) * 1981-06-25 1983-01-07 Casio Comput Co Ltd 液晶表示装置
JPS5823835A (ja) * 1981-08-05 1983-02-12 Mitsubishi Chem Ind Ltd 多孔質焼結体
JPS58198542A (ja) * 1982-05-17 1983-11-18 Mitsubishi Chem Ind Ltd 多孔質焼結体
JPS5936227A (ja) * 1982-08-24 1984-02-28 Sharp Corp 液晶表示装置
JPS59108030A (ja) * 1982-12-11 1984-06-22 Nitto Electric Ind Co Ltd ポリイミド粉体の製造方法
JPS606726A (ja) * 1983-06-25 1985-01-14 Nissan Chem Ind Ltd 新規ポリイミド樹脂及びその製造法
JPS60221425A (ja) * 1984-04-18 1985-11-06 Nitto Electric Ind Co Ltd 球状多孔性ポリイミド粉体
JPS62173438A (ja) * 1986-01-28 1987-07-30 Fujitsu Ltd 液晶表示素子
JPS62210419A (ja) * 1986-03-12 1987-09-16 Fujitsu Ltd 液晶表示素子の製法
JPS6487685A (en) * 1987-09-29 1989-03-31 Seimi Chem Kk Production of liquid crystal composition of high resistivity
US5288426A (en) * 1988-04-21 1994-02-22 Nippon Oil Company. Limited Nonlinear optical materials
JPH0497127A (ja) * 1990-08-09 1992-03-30 Sharp Corp 液晶表示装置
JPH04258925A (ja) * 1991-02-14 1992-09-14 Matsushita Electric Ind Co Ltd 液晶注入装置
US5422034A (en) * 1992-12-16 1995-06-06 Hitachi Chemical Company, Ltd. Purification of liquid crystals and liquid crystal composition

Also Published As

Publication number Publication date
EP0603731A1 (de) 1994-06-29
US5540857A (en) 1996-07-30
KR100303196B1 (ko) 2001-11-22
DE69317378T2 (de) 1998-07-02
KR940014736A (ko) 1994-07-19
US5422034A (en) 1995-06-06
EP0603731B1 (de) 1998-03-11

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Legal Events

Date Code Title Description
8364 No opposition during term of opposition
8339 Ceased/non-payment of the annual fee