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JPS5660417A - Electrochromic display device - Google Patents

Electrochromic display device

Info

Publication number
JPS5660417A
JPS5660417A JP13692779A JP13692779A JPS5660417A JP S5660417 A JPS5660417 A JP S5660417A JP 13692779 A JP13692779 A JP 13692779A JP 13692779 A JP13692779 A JP 13692779A JP S5660417 A JPS5660417 A JP S5660417A
Authority
JP
Japan
Prior art keywords
sheet
porous
pigments
spaces
polytetrafluoroethylene
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
JP13692779A
Other languages
Japanese (ja)
Other versions
JPS6328286B2 (en
Inventor
Hiroshi Mano
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.)
Sumitomo Electric Industries Ltd
Original Assignee
Sumitomo Electric Industries 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 Sumitomo Electric Industries Ltd filed Critical Sumitomo Electric Industries Ltd
Priority to JP13692779A priority Critical patent/JPS5660417A/en
Priority to US06/185,844 priority patent/US4354741A/en
Priority to DE3034525A priority patent/DE3034525C2/en
Publication of JPS5660417A publication Critical patent/JPS5660417A/en
Publication of JPS6328286B2 publication Critical patent/JPS6328286B2/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 give good display background and achieve the reduction in the thickness of a device by using a porous body contg. Pigments at 1W50 volumes of the volume of porous spaces in the porous spaces in a porous material having a specific mean pore size range and more than specific values of porous space volumes, as an electrolyte-impregnated layer.
CONSTITUTION: In a reflection type electrochromic (EC) display device in particular, a sheetlike object of 0.03W2mm thick, which is 0.1W50μ in mean pore size and in which porous spaces occupy ≥30vol% is made by such a method of using polytetrafluoroethylene, polypropylene, polyethylene, etc., incoporating a liquid lubricant into, for example, polytetrafluoroethylene unbacked powder, forming this into a sheet by extrusion or the like, removing the lubricant from this sheet by extraction or the like then stretching the sheet. This sheet is immersed in a liquid dispersed with pigments conrg. ≥50vol% TiO2 in an alcohol or the like and it is subjected to necessary times of immersing and drying so that the pigments occupy 1W50vol% the porous spaces, thence this sheet is used for an electrolyte impregnated layer. In this way, the good display color well shielding the ground is obtained.
COPYRIGHT: (C)1981,JPO&Japio
JP13692779A 1979-10-12 1979-10-23 Electrochromic display device Granted JPS5660417A (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
JP13692779A JPS5660417A (en) 1979-10-23 1979-10-23 Electrochromic display device
US06/185,844 US4354741A (en) 1979-10-12 1980-09-10 Electrochromic display device
DE3034525A DE3034525C2 (en) 1979-10-12 1980-09-12 Process for the production of a porous, electrolyte-containing counter electrode of an electrochromic display device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP13692779A JPS5660417A (en) 1979-10-23 1979-10-23 Electrochromic display device

Publications (2)

Publication Number Publication Date
JPS5660417A true JPS5660417A (en) 1981-05-25
JPS6328286B2 JPS6328286B2 (en) 1988-06-08

Family

ID=15186812

Family Applications (1)

Application Number Title Priority Date Filing Date
JP13692779A Granted JPS5660417A (en) 1979-10-12 1979-10-23 Electrochromic display device

Country Status (1)

Country Link
JP (1) JPS5660417A (en)

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS50141345A (en) * 1973-12-26 1975-11-13
JPS5199057A (en) * 1975-01-13 1976-09-01 Timex Corp
JPS5387190A (en) * 1977-01-11 1978-08-01 Sony Corp Non-volatile memory element
JPS5392151A (en) * 1977-01-24 1978-08-12 Sharp Corp Electrochromic indicator
JPS5497058A (en) * 1978-01-17 1979-07-31 Toshiba Corp Display cell

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS50141345A (en) * 1973-12-26 1975-11-13
JPS5199057A (en) * 1975-01-13 1976-09-01 Timex Corp
JPS5387190A (en) * 1977-01-11 1978-08-01 Sony Corp Non-volatile memory element
JPS5392151A (en) * 1977-01-24 1978-08-12 Sharp Corp Electrochromic indicator
JPS5497058A (en) * 1978-01-17 1979-07-31 Toshiba Corp Display cell

Also Published As

Publication number Publication date
JPS6328286B2 (en) 1988-06-08

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