JPS54151056A - Electrophoresis display device - Google Patents

Electrophoresis display device

Info

Publication number
JPS54151056A
JPS54151056A JP5940078A JP5940078A JPS54151056A JP S54151056 A JPS54151056 A JP S54151056A JP 5940078 A JP5940078 A JP 5940078A JP 5940078 A JP5940078 A JP 5940078A JP S54151056 A JPS54151056 A JP S54151056A
Authority
JP
Japan
Prior art keywords
polarity
colors
electrophoresis
dispersant
changing
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
JP5940078A
Other languages
Japanese (ja)
Inventor
Katsumi Umeda
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.)
Seiko Epson Corp
Suwa Seikosha KK
Original Assignee
Seiko Epson Corp
Suwa Seikosha KK
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 Seiko Epson Corp, Suwa Seikosha KK filed Critical Seiko Epson Corp
Priority to JP5940078A priority Critical patent/JPS54151056A/en
Publication of JPS54151056A publication Critical patent/JPS54151056A/en
Pending legal-status Critical Current

Links

Landscapes

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

Abstract

PURPOSE: To make possible the selection of display colors by changing the driving voltage polarity of the display device which makes use of electrophoresis.
CONSTITUTION: If the polarity of the voltage to be applied to the electrodes of a display plate 8 which makes use of electrophoresis with the rutile type titanium dioxide or other coated an epoxy resin as dispersing pigment fine particles and tetrafluoroethane dibromide colored to a black color by oil black dyes as dispersant is changed over by a power source polarity changeover switch 5, one of the colors by the dispersing particles or dispersant of the display plate 8 to be determined by the voltage polarity having been applied immediate before through segment driving signals T1, T2... changes to the other color. Hence, those things such as discriminated displaying of positive and negative numbers by colors through changing of applied voltage polarity for the same number may be readily accomplished.
COPYRIGHT: (C)1979,JPO&Japio
JP5940078A 1978-05-18 1978-05-18 Electrophoresis display device Pending JPS54151056A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP5940078A JPS54151056A (en) 1978-05-18 1978-05-18 Electrophoresis display device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP5940078A JPS54151056A (en) 1978-05-18 1978-05-18 Electrophoresis display device

Publications (1)

Publication Number Publication Date
JPS54151056A true JPS54151056A (en) 1979-11-27

Family

ID=13112184

Family Applications (1)

Application Number Title Priority Date Filing Date
JP5940078A Pending JPS54151056A (en) 1978-05-18 1978-05-18 Electrophoresis display device

Country Status (1)

Country Link
JP (1) JPS54151056A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2007041386A (en) * 2005-08-04 2007-02-15 Seiko Epson Corp Electrophoretic display module, electronic appliance, and method for manufacturing the electrophoretic display module
EP1873595A1 (en) * 2006-06-30 2008-01-02 Seiko Epson Corporation Timepiece

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2007041386A (en) * 2005-08-04 2007-02-15 Seiko Epson Corp Electrophoretic display module, electronic appliance, and method for manufacturing the electrophoretic display module
EP1873595A1 (en) * 2006-06-30 2008-01-02 Seiko Epson Corporation Timepiece
US7639571B2 (en) 2006-06-30 2009-12-29 Seiko Epson Corporation Timepiece

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