CH610472B5 - Display device for a timepiece with solid-state electronic components - Google Patents

Display device for a timepiece with solid-state electronic components

Info

Publication number
CH610472B5
CH610472B5 CH862374A CH862374A CH610472B5 CH 610472 B5 CH610472 B5 CH 610472B5 CH 862374 A CH862374 A CH 862374A CH 862374 A CH862374 A CH 862374A CH 610472 B5 CH610472 B5 CH 610472B5
Authority
CH
Switzerland
Prior art keywords
week
display
timepiece
solid
display device
Prior art date
Application number
CH862374A
Inventor
Kinji Fujita
Original Assignee
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 Suwa Seikosha Kk filed Critical Suwa Seikosha Kk
Publication of CH610472B5 publication Critical patent/CH610472B5/en

Links

Classifications

    • G—PHYSICS
    • G04—HOROLOGY
    • G04G—ELECTRONIC TIME-PIECES
    • G04G9/00—Visual time or date indication means
    • G04G9/0082—Visual time or date indication means by building-up characters using a combination of indicating elements and by selecting desired characters out of a number of characters or by selecting indicating elements the positions of which represents the time, i.e. combinations of G04G9/02 and G04G9/08
    • G04G9/0094—Visual time or date indication means by building-up characters using a combination of indicating elements and by selecting desired characters out of a number of characters or by selecting indicating elements the positions of which represents the time, i.e. combinations of G04G9/02 and G04G9/08 using light valves, e.g. liquid crystals

Landscapes

  • Chemical & Material Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Electric Clocks (AREA)
  • Liquid Crystal (AREA)

Abstract

The frequency of the output signal from an oscillator is divided by a frequency divider so as to obtain frequencies whose period corresponds to one second, one minute, one hour and one day. The hour information signals are processed in a decoder. The control signals provided by the decoder are amplified by an amplifier before being applied to the seven-segment display matrices. Letters representing indications of the days of the week are printed on or attached to a dial beforehand. Liquid-crystal screens serve to mask the display of the days of the week. These screens are configured to mask all except one of the indications, the display of the day of the week thus being marked by the indication which remains unmasked.
CH862374A 1970-10-27 1971-10-26 Display device for a timepiece with solid-state electronic components CH610472B5 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP9398770 1970-10-27

Publications (1)

Publication Number Publication Date
CH610472B5 true CH610472B5 (en) 1979-04-30

Family

ID=14097735

Family Applications (3)

Application Number Title Priority Date Filing Date
CH1560471D CH1560471A4 (en) 1970-10-27 1971-10-26
CH1560471A CH582382B5 (en) 1970-10-27 1971-10-26
CH862374A CH610472B5 (en) 1970-10-27 1971-10-26 Display device for a timepiece with solid-state electronic components

Family Applications Before (2)

Application Number Title Priority Date Filing Date
CH1560471D CH1560471A4 (en) 1970-10-27 1971-10-26
CH1560471A CH582382B5 (en) 1970-10-27 1971-10-26

Country Status (6)

Country Link
CH (3) CH1560471A4 (en)
DE (1) DE2153637B2 (en)
FR (1) FR2111858B1 (en)
GB (1) GB1354392A (en)
HK (1) HK40876A (en)
IT (1) IT939588B (en)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4940172A (en) * 1972-08-16 1974-04-15
JPS5522059Y2 (en) * 1975-03-19 1980-05-27
JPS5824754B2 (en) * 1975-05-23 1983-05-23 セイコーインスツルメンツ株式会社 Gozen
US4217578A (en) * 1976-12-29 1980-08-12 Victor Company Of Japan, Limited Fluorescent indicator tube and related circuit
DE2951760C2 (en) * 1978-12-23 1986-01-02 Tokyo Shibaura Denki K.K., Kawasaki, Kanagawa Liquid crystal display device
DE2930507A1 (en) * 1979-07-27 1981-02-12 Licentia Gmbh DISPLAY DEVICE
GB2212631B (en) * 1988-02-29 1990-01-24 Wing Root Limited Watch

Also Published As

Publication number Publication date
DE2153637B2 (en) 1974-06-12
CH582382B5 (en) 1976-11-30
FR2111858B1 (en) 1975-02-07
GB1354392A (en) 1974-06-05
FR2111858A1 (en) 1972-06-09
HK40876A (en) 1976-07-09
CH1560471A4 (en) 1976-06-15
DE2153637A1 (en) 1972-05-04
IT939588B (en) 1973-02-10

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Legal Events

Date Code Title Description
PL Patent ceased