JPS54153067A - Time display device of electrophoresis display - Google Patents

Time display device of electrophoresis display

Info

Publication number
JPS54153067A
JPS54153067A JP6132478A JP6132478A JPS54153067A JP S54153067 A JPS54153067 A JP S54153067A JP 6132478 A JP6132478 A JP 6132478A JP 6132478 A JP6132478 A JP 6132478A JP S54153067 A JPS54153067 A JP S54153067A
Authority
JP
Japan
Prior art keywords
display
time
epid
colors
electrophoresis
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
JP6132478A
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 JP6132478A priority Critical patent/JPS54153067A/en
Publication of JPS54153067A publication Critical patent/JPS54153067A/en
Pending legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G04—HOROLOGY
    • G04G—ELECTRONIC TIME-PIECES
    • G04G9/00—Visual time or date indication means
    • G04G9/0023—Visual time or date indication means by light valves in general

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Electric Clocks (AREA)
  • Liquid Crystal (AREA)
  • Electrochromic Elements, Electrophoresis, Or Variable Reflection Or Absorption Elements (AREA)
  • Liquid Crystal Display Device Control (AREA)
  • Devices For Indicating Variable Information By Combining Individual Elements (AREA)

Abstract

PURPOSE:To enable the time to be surely known to the user by inverting the display colors of EPID at AM, PM or the set time in the time display device using the display plate (EPID) which makes use of electrophoresis. CONSTITUTION:While time display is being accomplished in a digital time display plate as shown in the figure, the display colors change with AM and PM. For example, in the case of AM, the display part 10 is made black and the background and the display segment part 9 of OFF are made white. When it becomes PM, the polarity of the display color assignment signal of a display plate driving circuit inverts and the dispaly colors invert, thus distinctly indicating the difference of AM and PM. If such a method of driving the EPID is employed, the cumulation time of the ON and OFF states of the segments and background parts of EPID becomes equal, and this makes contribution to the long-term stability of the dispersion system.
JP6132478A 1978-05-23 1978-05-23 Time display device of electrophoresis display Pending JPS54153067A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP6132478A JPS54153067A (en) 1978-05-23 1978-05-23 Time display device of electrophoresis display

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP6132478A JPS54153067A (en) 1978-05-23 1978-05-23 Time display device of electrophoresis display

Publications (1)

Publication Number Publication Date
JPS54153067A true JPS54153067A (en) 1979-12-01

Family

ID=13167834

Family Applications (1)

Application Number Title Priority Date Filing Date
JP6132478A Pending JPS54153067A (en) 1978-05-23 1978-05-23 Time display device of electrophoresis display

Country Status (1)

Country Link
JP (1) JPS54153067A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2007065258A (en) * 2005-08-31 2007-03-15 Seiko Epson Corp Method for driving electrophoretic device, electrophoretic device, electronic equipment, and electronic timepiece

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2007065258A (en) * 2005-08-31 2007-03-15 Seiko Epson Corp Method for driving electrophoretic device, electrophoretic device, electronic equipment, and electronic timepiece
JP4529139B2 (en) * 2005-08-31 2010-08-25 セイコーエプソン株式会社 Method for driving electrophoresis apparatus, controller for controlling electrophoresis apparatus, electrophoresis apparatus, and electronic apparatus

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