JPS54133151A - Electrochemical display device - Google Patents

Electrochemical display device

Info

Publication number
JPS54133151A
JPS54133151A JP4050478A JP4050478A JPS54133151A JP S54133151 A JPS54133151 A JP S54133151A JP 4050478 A JP4050478 A JP 4050478A JP 4050478 A JP4050478 A JP 4050478A JP S54133151 A JPS54133151 A JP S54133151A
Authority
JP
Japan
Prior art keywords
electrode
display device
electrolyte
counter electrode
electrochromic compound
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.)
Granted
Application number
JP4050478A
Other languages
Japanese (ja)
Other versions
JPS6327693B2 (en
Inventor
Noriyoshi Nanba
Kazuhito Minezaki
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.)
TDK Corp
Original Assignee
TDK Corp
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 TDK Corp filed Critical TDK Corp
Priority to JP4050478A priority Critical patent/JPS54133151A/en
Publication of JPS54133151A publication Critical patent/JPS54133151A/en
Publication of JPS6327693B2 publication Critical patent/JPS6327693B2/ja
Granted legal-status Critical Current

Links

Landscapes

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

Abstract

PURPOSE: To elongate the life of display device, by using specific counter electrode free from defect of deterioration in reversibility, in an electrochemical display device using electrochromic compound such as viologen compound.
CONSTITUTION: A glass plate 1 containing a transparent electrode for display pole 2, and a counter electrode 3 made from Cd-Cd(OH)2 are providee, and an electrolyte holding member 6 filled with spacer 7 and electrolyte 5 is supported against a protective plate 4. The display pole 2 and electrode 3 are connected to a power source 11, respectively by way of lead wires 8, 9 and selector switch 10. The value of pH of solutions having electrochromic compound and electrolyte dissolved in a proper solvent is adjusted within the range of 8.0 to 9.5. The electrode 3 undergoes the electrode reaction as shown in the formula, and causes dissolution and diffusion, not generating substance which may be the cause for irreversibility. Therefore, stable reaction may be performed in weak alkaline state.
COPYRIGHT: (C)1979,JPO&Japio
JP4050478A 1978-04-06 1978-04-06 Electrochemical display device Granted JPS54133151A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP4050478A JPS54133151A (en) 1978-04-06 1978-04-06 Electrochemical display device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP4050478A JPS54133151A (en) 1978-04-06 1978-04-06 Electrochemical display device

Publications (2)

Publication Number Publication Date
JPS54133151A true JPS54133151A (en) 1979-10-16
JPS6327693B2 JPS6327693B2 (en) 1988-06-03

Family

ID=12582374

Family Applications (1)

Application Number Title Priority Date Filing Date
JP4050478A Granted JPS54133151A (en) 1978-04-06 1978-04-06 Electrochemical display device

Country Status (1)

Country Link
JP (1) JPS54133151A (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6358190U (en) * 1986-10-06 1988-04-18

Also Published As

Publication number Publication date
JPS6327693B2 (en) 1988-06-03

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