JPS56111835A - Liquid-crystal display element - Google Patents

Liquid-crystal display element

Info

Publication number
JPS56111835A
JPS56111835A JP1475980A JP1475980A JPS56111835A JP S56111835 A JPS56111835 A JP S56111835A JP 1475980 A JP1475980 A JP 1475980A JP 1475980 A JP1475980 A JP 1475980A JP S56111835 A JPS56111835 A JP S56111835A
Authority
JP
Japan
Prior art keywords
liquid
crystal
index
display
double refraction
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.)
Pending
Application number
JP1475980A
Other languages
Japanese (ja)
Inventor
Kiyoshi Mizunoya
Masahiro Kawamoto
Shoichi Matsumoto
Hirosuke Wada
Hitoshi Tomii
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.)
Toshiba Corp
Original Assignee
Toshiba Corp
Tokyo Shibaura Electric 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
Application filed by Toshiba Corp, Tokyo Shibaura Electric Co Ltd filed Critical Toshiba Corp
Priority to JP1475980A priority Critical patent/JPS56111835A/en
Priority to DE8181100785T priority patent/DE3160901D1/en
Priority to EP19810100785 priority patent/EP0033947B2/en
Priority to AU66876/81A priority patent/AU529531B2/en
Priority to CA000370633A priority patent/CA1136843A/en
Publication of JPS56111835A publication Critical patent/JPS56111835A/en
Pending 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
    • C09K19/04—Liquid crystal materials characterised by the chemical structure of the liquid crystal components, e.g. by a specific unit
    • C09K19/42—Mixtures of liquid crystal compounds covered by two or more of the preceding groups C09K19/06 - C09K19/40
    • 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
    • C09K19/58—Dopants or charge transfer agents
    • C09K19/582—Electrically active dopants, e.g. charge transfer agents

Abstract

PURPOSE:To increase a contrast, to facilitate half-tone display and to improve response by using a transparent material as at least either one of electrode substrates in a couple and by making a liquid-crystal material with a mixture of two components differring in index of double refraction. CONSTITUTION:In a liquid-crystal display element for picture display which utilizes the dynamic scattering effect of liquid crystal, at least either one of a couple of electrode substrates uses a transparent material. To obtain a liquid-crystal material to be sealed between the substrates, not less than one kind of the 1st component, such as cyclohexane carboxylic acid ester type liquid crystal, low in index of double refraction and not less than one kind of the 2nd component, such as azoxy or Schiff's base liquid crystal, high in index of double refraction are mixed to adjust the index of double refraction to 0.14-0.21. Thus, the display elements which provide excellent gradations, make a fast response enough to follow up motion picture display, such as television display, and have long DC operation life can be obtained by using the said mixed liquid-crystal system.
JP1475980A 1980-02-12 1980-02-12 Liquid-crystal display element Pending JPS56111835A (en)

Priority Applications (5)

Application Number Priority Date Filing Date Title
JP1475980A JPS56111835A (en) 1980-02-12 1980-02-12 Liquid-crystal display element
DE8181100785T DE3160901D1 (en) 1980-02-12 1981-02-04 Liquid crystal display element
EP19810100785 EP0033947B2 (en) 1980-02-12 1981-02-04 Liquid crystal display element
AU66876/81A AU529531B2 (en) 1980-02-12 1981-02-04 Liquid crystal display element
CA000370633A CA1136843A (en) 1980-02-12 1981-02-11 Liquid crystal display element

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1475980A JPS56111835A (en) 1980-02-12 1980-02-12 Liquid-crystal display element

Publications (1)

Publication Number Publication Date
JPS56111835A true JPS56111835A (en) 1981-09-03

Family

ID=11870005

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1475980A Pending JPS56111835A (en) 1980-02-12 1980-02-12 Liquid-crystal display element

Country Status (1)

Country Link
JP (1) JPS56111835A (en)

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5133999A (en) * 1974-07-16 1976-03-23 Commissariat Energie Atomique
JPS5337048A (en) * 1976-09-17 1978-04-05 Toshiba Corp Electro-optic element
JPS546884A (en) * 1977-06-20 1979-01-19 Hitachi Ltd Nematic liquid crystal body for display device

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5133999A (en) * 1974-07-16 1976-03-23 Commissariat Energie Atomique
JPS5337048A (en) * 1976-09-17 1978-04-05 Toshiba Corp Electro-optic element
JPS546884A (en) * 1977-06-20 1979-01-19 Hitachi Ltd Nematic liquid crystal body for display device

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