JPS57117581A - Liquid crystal display element - Google Patents

Liquid crystal display element

Info

Publication number
JPS57117581A
JPS57117581A JP367681A JP367681A JPS57117581A JP S57117581 A JPS57117581 A JP S57117581A JP 367681 A JP367681 A JP 367681A JP 367681 A JP367681 A JP 367681A JP S57117581 A JPS57117581 A JP S57117581A
Authority
JP
Japan
Prior art keywords
liquid crystal
formula
display element
substituted
crystal composition
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
JP367681A
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 JP367681A priority Critical patent/JPS57117581A/en
Publication of JPS57117581A publication Critical patent/JPS57117581A/en
Pending legal-status Critical Current

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  • 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 red dye.
CONSTITUTION: The objective display element is prepared by using a liquid crystal composition containing a red dye of formulaI{X is O or S; R is H, (substituted) alkyl, (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, piperazino, etc.}(synthesized by reacting the compound of formula III with the compound of formula IV in the presence of an acid acceptor) 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
JP367681A 1981-01-12 1981-01-12 Liquid crystal display element Pending JPS57117581A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP367681A JPS57117581A (en) 1981-01-12 1981-01-12 Liquid crystal display element

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP367681A JPS57117581A (en) 1981-01-12 1981-01-12 Liquid crystal display element

Publications (1)

Publication Number Publication Date
JPS57117581A true JPS57117581A (en) 1982-07-22

Family

ID=11564017

Family Applications (1)

Application Number Title Priority Date Filing Date
JP367681A Pending JPS57117581A (en) 1981-01-12 1981-01-12 Liquid crystal display element

Country Status (1)

Country Link
JP (1) JPS57117581A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5773067A (en) * 1980-07-29 1982-05-07 Secr Defence Brit Material suitable for guest-host liquid crystal device and liquid crystal electric- optical device
JPS57164182A (en) * 1981-04-01 1982-10-08 Nec Corp Dyestuff/liquid crystal mixture used for colored liquid crystal display element
WO2001059019A1 (en) * 2000-02-10 2001-08-16 Mitsui Chemicals, Inc. Anthraquinone compound and water-based ink-jet recording ink containing the compound

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS55116785A (en) * 1979-02-23 1980-09-08 Minnesota Mining & Mfg Liquid crystal composition and electrooptical apparatus
JPS55123673A (en) * 1979-03-16 1980-09-24 Mitsui Toatsu Chem Inc Liquid crystal color display device
JPS55157676A (en) * 1979-05-25 1980-12-08 Mitsui Toatsu Chem Inc Composition for liquid crystal color display element
JPS5647478A (en) * 1979-09-21 1981-04-30 Bbc Brown Boveri & Cie Liquid crystal mixture for electrooptical display device
JPS5655479A (en) * 1979-10-12 1981-05-16 Mitsubishi Chem Ind Ltd Liquid crystal composition
JPS5657872A (en) * 1979-10-02 1981-05-20 Ebauches Sa Liquid crystal composition for electrooptical device
JPS56161488A (en) * 1980-04-18 1981-12-11 Bayer Ag Liquid crystal substance containing anthraquinone dye
JPS5738876A (en) * 1980-08-21 1982-03-03 Mitsubishi Chem Ind Ltd Liquid crystal composition

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS55116785A (en) * 1979-02-23 1980-09-08 Minnesota Mining & Mfg Liquid crystal composition and electrooptical apparatus
JPS55123673A (en) * 1979-03-16 1980-09-24 Mitsui Toatsu Chem Inc Liquid crystal color display device
JPS55157676A (en) * 1979-05-25 1980-12-08 Mitsui Toatsu Chem Inc Composition for liquid crystal color display element
JPS5647478A (en) * 1979-09-21 1981-04-30 Bbc Brown Boveri & Cie Liquid crystal mixture for electrooptical display device
JPS5657872A (en) * 1979-10-02 1981-05-20 Ebauches Sa Liquid crystal composition for electrooptical device
JPS5655479A (en) * 1979-10-12 1981-05-16 Mitsubishi Chem Ind Ltd Liquid crystal composition
JPS56161488A (en) * 1980-04-18 1981-12-11 Bayer Ag Liquid crystal substance containing anthraquinone dye
JPS5738876A (en) * 1980-08-21 1982-03-03 Mitsubishi Chem Ind Ltd Liquid crystal composition

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5773067A (en) * 1980-07-29 1982-05-07 Secr Defence Brit Material suitable for guest-host liquid crystal device and liquid crystal electric- optical device
JPH049830B2 (en) * 1980-07-29 1992-02-21
JPS57164182A (en) * 1981-04-01 1982-10-08 Nec Corp Dyestuff/liquid crystal mixture used for colored liquid crystal display element
WO2001059019A1 (en) * 2000-02-10 2001-08-16 Mitsui Chemicals, Inc. Anthraquinone compound and water-based ink-jet recording ink containing the compound
EP1174477A1 (en) * 2000-02-10 2002-01-23 Mitsui Chemicals, Inc. Anthraquinone compound and water-based ink-jet recording ink containing the compound
EP1174477A4 (en) * 2000-02-10 2002-05-15 Mitsui Chemicals Inc Anthraquinone compound and water-based ink-jet recording ink containing the compound
US6800674B2 (en) 2000-02-10 2004-10-05 Mitsui Chemicals, Inc. Anthraquinone compound and water-based ink-jet recording ink containing the compound

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