JPS57198778A - Liquid crystal color display element - Google Patents

Liquid crystal color display element

Info

Publication number
JPS57198778A
JPS57198778A JP8388481A JP8388481A JPS57198778A JP S57198778 A JPS57198778 A JP S57198778A JP 8388481 A JP8388481 A JP 8388481A JP 8388481 A JP8388481 A JP 8388481A JP S57198778 A JPS57198778 A JP S57198778A
Authority
JP
Japan
Prior art keywords
formula
liquid crystal
display element
dichroic dye
alkoxyalkyl
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
JP8388481A
Other languages
Japanese (ja)
Inventor
Kazutoshi Sawada
Shoichi Kudo
Hiroshi Masuda
Mitsuru Kurosawa
Yasuyoshi Morishita
Hiroyuki Matsumoto
Daisaku Matsunaga
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.)
Nippon Kayaku Co Ltd
AGC Inc
Original Assignee
Asahi Glass Co Ltd
Nippon Kayaku 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 Asahi Glass Co Ltd, Nippon Kayaku Co Ltd filed Critical Asahi Glass Co Ltd
Priority to JP8388481A priority Critical patent/JPS57198778A/en
Publication of JPS57198778A publication Critical patent/JPS57198778A/en
Pending legal-status Critical Current

Links

Abstract

PURPOSE: To obtain the titled display element having good color density, dichroism, and light resistance, by sealing a liquid crystal containing a specific anthraquinone dichroic dye in a cell formed by placng a pair of transparent electrode base plates parallelly and oppositely with each other.
CONSTITUTION: The objective display element is obtained by sealing a liquid crystal containing the anthraquinone dichroic dye of formula[R is group of formula II (R1 is H, methyl or phenyl; n is 0W2), formula III (R2 is 1W12C alkyl, alkoxyalkyl or group of formula II) or formula IV (R3 is 1W12C alkyl or alkoxyalkyl)]in a cell obtained by placing a pair of transparent electrode base plates parallelly and oppositely with each other interposing a circumferential sealing material therebetween. The anthraquinone dichroic dye can be prepared by the exchange reaction of the compound of formula V in dimethyl sulfoxide in the presence of potassium hydroxide at 100W150°C.
COPYRIGHT: (C)1982,JPO&Japio
JP8388481A 1981-06-02 1981-06-02 Liquid crystal color display element Pending JPS57198778A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP8388481A JPS57198778A (en) 1981-06-02 1981-06-02 Liquid crystal color display element

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP8388481A JPS57198778A (en) 1981-06-02 1981-06-02 Liquid crystal color display element

Publications (1)

Publication Number Publication Date
JPS57198778A true JPS57198778A (en) 1982-12-06

Family

ID=13815080

Family Applications (1)

Application Number Title Priority Date Filing Date
JP8388481A Pending JPS57198778A (en) 1981-06-02 1981-06-02 Liquid crystal color display element

Country Status (1)

Country Link
JP (1) JPS57198778A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4883611A (en) * 1987-09-16 1989-11-28 Mitsui Toatsu Chemicals, Incorporated Dichroic coloring agents for liquid crystal displays

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4883611A (en) * 1987-09-16 1989-11-28 Mitsui Toatsu Chemicals, Incorporated Dichroic coloring agents for liquid crystal displays

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