JPS57117580A - Liquid crystal display element - Google Patents

Liquid crystal display element

Info

Publication number
JPS57117580A
JPS57117580A JP367581A JP367581A JPS57117580A JP S57117580 A JPS57117580 A JP S57117580A JP 367581 A JP367581 A JP 367581A JP 367581 A JP367581 A JP 367581A JP S57117580 A JPS57117580 A JP S57117580A
Authority
JP
Japan
Prior art keywords
liquid crystal
formula
display element
crystal composition
substituted
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
JP367581A
Other languages
Japanese (ja)
Inventor
Yasutaka Shimizu
Hiroto Kenmochi
Toshihiko Ueno
Kazutsuka Tani
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.)
NEC Corp
Sumitomo Chemical Co Ltd
Original Assignee
NEC Corp
Sumitomo Chemical Co Ltd
Nippon 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 NEC Corp, Sumitomo Chemical Co Ltd, Nippon Electric Co Ltd filed Critical NEC Corp
Priority to JP367581A priority Critical patent/JPS57117580A/en
Publication of JPS57117580A publication Critical patent/JPS57117580A/en
Pending legal-status Critical Current

Links

Landscapes

  • Liquid Crystal (AREA)

Abstract

PURPOSE: To provide a liquid crystal display element composed of a liquid crystal composition filled between a pair of transparent electrodes, having excellent dichroism and light resistance, high contrast, and long life, by using a liquid crystal composition containing a specific blue dye.
CONSTITUTION: The objective display element is prepared by using a liquid crystal composition containing a blue dye of formulaI{R is H, (substituted) alkoxy, aryl, (substituted) alkylthio, aralkyl, aryloxy, etc. or group of formula II[R1 and R2 are H, (substituted) alkyl, aryl or aralkyl], the group of formula II may be piperidino, etc.}[synthesized by reacting the compound of formula III with the amine of formula IV (R is same as defined in formulaI)]in a liquid crystal display element composed of a liquid crystal composition filled between a pair of electrode substrates, at least one of which is transparent. The liquid crystal is pref. a nematic liquid crystal exhibiting positive dielectric anisotropy, e.g. the compound of formula V (one of R3 and R4 is cyano and the other is alkyl, alkoxy, etc.).
COPYRIGHT: (C)1982,JPO&Japio
JP367581A 1981-01-12 1981-01-12 Liquid crystal display element Pending JPS57117580A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP367581A JPS57117580A (en) 1981-01-12 1981-01-12 Liquid crystal display element

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP367581A JPS57117580A (en) 1981-01-12 1981-01-12 Liquid crystal display element

Publications (1)

Publication Number Publication Date
JPS57117580A true JPS57117580A (en) 1982-07-22

Family

ID=11563991

Family Applications (1)

Application Number Title Priority Date Filing Date
JP367581A Pending JPS57117580A (en) 1981-01-12 1981-01-12 Liquid crystal display element

Country Status (1)

Country Link
JP (1) JPS57117580A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4624532A (en) * 1980-10-22 1986-11-25 General Electric Company Dichroic liquid crystal compositions containing anthraquinone-based dyes
JPS61291186A (en) * 1985-06-19 1986-12-20 Mitsubishi Chem Ind Ltd Optical recording material
US4824882A (en) * 1984-10-05 1989-04-25 Mitsui Toatsu Chemicals, Incorporated Polarizing film
US5286418A (en) * 1984-10-05 1994-02-15 Mitsui Toatsu Chemicals, Incorporated Polarizing film

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5662873A (en) * 1979-10-29 1981-05-29 Nippon Kanko Shikiso Kenkyusho:Kk Dichromatic dye for liquid crystal consisting of anthraquinone compound
JPS5734177A (en) * 1980-08-08 1982-02-24 Mitsubishi Chem Ind Ltd Liquid crystal composition

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5662873A (en) * 1979-10-29 1981-05-29 Nippon Kanko Shikiso Kenkyusho:Kk Dichromatic dye for liquid crystal consisting of anthraquinone compound
JPS5734177A (en) * 1980-08-08 1982-02-24 Mitsubishi Chem Ind Ltd Liquid crystal composition

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4624532A (en) * 1980-10-22 1986-11-25 General Electric Company Dichroic liquid crystal compositions containing anthraquinone-based dyes
US4824882A (en) * 1984-10-05 1989-04-25 Mitsui Toatsu Chemicals, Incorporated Polarizing film
US5059356A (en) * 1984-10-05 1991-10-22 Mitsui Toatsu Chemicals, Incorporated Polarizing film
US5286418A (en) * 1984-10-05 1994-02-15 Mitsui Toatsu Chemicals, Incorporated Polarizing film
US5354513A (en) * 1984-10-05 1994-10-11 Mitsui Toatsu Chemicals, Incorporated Polarizing film
JPS61291186A (en) * 1985-06-19 1986-12-20 Mitsubishi Chem Ind Ltd Optical recording material

Similar Documents

Publication Publication Date Title
JPS57126879A (en) Liquid crystal display element
JPS5763377A (en) Liquid crystal composition for color display
KR830009186A (en) Liquid crystal composition
JPS57117580A (en) Liquid crystal display element
JPS57117582A (en) Liquid crystal display element
JPS57117581A (en) Liquid crystal display element
JPS5534206A (en) Nematic liquid crystal for display unit
JPS57155282A (en) Liquid crystal composition
JPS5698277A (en) Liquid crystalline composition
JPS57147575A (en) Liquid crystal display element
JPS6470585A (en) Liquid crystal composition
JPS5790080A (en) Liquid crystal display device
JPS57117579A (en) Liquid crystal display device
JPS5618675A (en) Liquid crystal display element
JPS54141150A (en) Liquid crystal display device
JPS5785879A (en) Liquid crystal display device
JPS5643386A (en) Liquid crystal composition and liquid crystal display element using the same
JPS56112985A (en) Liquid crystal display device
JPS5798580A (en) Liquid crystal composition and liquid crystal display element using same
JPS5643384A (en) Liquid crystal the composition and display element using same
JPS6471A (en) Novel pyridine based optically active compound
JPS57198776A (en) Composition for liquid crystal color display
JPS57198778A (en) Liquid crystal color display element
JPS5499787A (en) Electrically coloring display element
JPS5670080A (en) Liquid crystal composition