JPS5540751A - Device for electrochromic display - Google Patents

Device for electrochromic display

Info

Publication number
JPS5540751A
JPS5540751A JP11556878A JP11556878A JPS5540751A JP S5540751 A JPS5540751 A JP S5540751A JP 11556878 A JP11556878 A JP 11556878A JP 11556878 A JP11556878 A JP 11556878A JP S5540751 A JPS5540751 A JP S5540751A
Authority
JP
Japan
Prior art keywords
alkyl
display
supporting electrolyte
hydroquinone derivative
electrode
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
JP11556878A
Other languages
Japanese (ja)
Inventor
Nobuyuki Yoshiike
Shigeo Kondo
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.)
Panasonic Holdings Corp
Original Assignee
Matsushita Electric Industrial 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 Matsushita Electric Industrial Co Ltd filed Critical Matsushita Electric Industrial Co Ltd
Priority to JP11556878A priority Critical patent/JPS5540751A/en
Publication of JPS5540751A publication Critical patent/JPS5540751A/en
Pending legal-status Critical Current

Links

Landscapes

  • Electrochromic Elements, Electrophoresis, Or Variable Reflection Or Absorption Elements (AREA)
  • Devices For Indicating Variable Information By Combining Individual Elements (AREA)

Abstract

PURPOSE: The cathode is composed of a complex electrode from carbon and a hydroquinone derivative and further a quarternary organic ammonium salt is used as the supporting electrolyte, whereby the hydroquinone derivative is insolubilized to elongate the time of display memory.
CONSTITUTION: A solution prepared by dissolving a display material that can be colored with electrolytic reversiblity and a supporting electrolyte in an inert solvent is used as an electrolysis solution and the display electrode and the opposite electrode are brought into contact with the solution to form the device for electrochromic display wherein the cathod is composed of a complex electrode containing carbon and a hydroquinone derivative and a compound of quaternary organic ammonium salt, preferably of formula I (R1WR4 are 1W7C alkyl, cycloalkyl, phenyl which may be substituted with alkyl group; X is electrochemically inert anion) or formula II (R5, R6 are H, 1W8C alkyl, phenyl which may be substituted with alkyl; Y is electrochemically inactive anion) is used as the supporting electrolyte.
COPYRIGHT: (C)1980,JPO&Japio
JP11556878A 1978-09-19 1978-09-19 Device for electrochromic display Pending JPS5540751A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP11556878A JPS5540751A (en) 1978-09-19 1978-09-19 Device for electrochromic display

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP11556878A JPS5540751A (en) 1978-09-19 1978-09-19 Device for electrochromic display

Publications (1)

Publication Number Publication Date
JPS5540751A true JPS5540751A (en) 1980-03-22

Family

ID=14665772

Family Applications (1)

Application Number Title Priority Date Filing Date
JP11556878A Pending JPS5540751A (en) 1978-09-19 1978-09-19 Device for electrochromic display

Country Status (1)

Country Link
JP (1) JPS5540751A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5756825A (en) * 1980-07-18 1982-04-05 American Cyanamid Co Electric coloring device
JP2009128818A (en) * 2007-11-27 2009-06-11 Funai Electric Advanced Applied Technology Research Institute Inc Electrochromic display device

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5756825A (en) * 1980-07-18 1982-04-05 American Cyanamid Co Electric coloring device
JP2009128818A (en) * 2007-11-27 2009-06-11 Funai Electric Advanced Applied Technology Research Institute Inc Electrochromic display device

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