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GB1377534A - Liquid crystal display electronic timepieces - Google Patents

Liquid crystal display electronic timepieces

Info

Publication number
GB1377534A
GB1377534A GB2683972A GB2683972A GB1377534A GB 1377534 A GB1377534 A GB 1377534A GB 2683972 A GB2683972 A GB 2683972A GB 2683972 A GB2683972 A GB 2683972A GB 1377534 A GB1377534 A GB 1377534A
Authority
GB
United Kingdom
Prior art keywords
liquid crystal
display
matrix
row
calendar
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.)
Expired
Application number
GB2683972A
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 Instruments Inc
Original Assignee
Seiko Instruments Inc
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 Instruments Inc filed Critical Seiko Instruments Inc
Publication of GB1377534A publication Critical patent/GB1377534A/en
Expired legal-status Critical Current

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)
  • Indicating Measured Values (AREA)
  • Calculators And Similar Devices (AREA)

Abstract

1377534 Watches DAINI SEIKOSHA K K 8 June 1972 [9 June 1971] 26839/72 Heading G3T A calendar watch has a crystal oscillator as its timebase, liquid crystal digital displays 14, 15 of the hours and minutes, and a calendar display 4 comprising a panel which is marked with the dates and lies in front of a matrix of liquid crystal elements, one element of the matrix being energized to display the date. Seven calendar panels are provided and the user fits the appropriate panel so that each date falls on the correct day of the week as indicated by a row of letters 11. An energizing signal is supplied to a row and a column of the matrix and the energized element lies at the intersection of the row and column. The seconds display is provided by a liquid crystal element 16 which is switched on and off every second and elements 17-21 which are sequentially and cumulatively switched on at ten second intervals. Alternatively there may be a segmental digital seconds display. An a.m.-p.m. liquid crystal indicator 13 is provided and switches 7-10 for setting the minutes, hours, day, and date. Operation of a further switch 6 stops the watch and is used for setting the seconds. The display driving and setting circuitry is described Fig. 2 (not shown).
GB2683972A 1971-06-09 1972-06-08 Liquid crystal display electronic timepieces Expired GB1377534A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP46040713A JPS5241673B1 (en) 1971-06-09 1971-06-09

Publications (1)

Publication Number Publication Date
GB1377534A true GB1377534A (en) 1974-12-18

Family

ID=12588208

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2683972A Expired GB1377534A (en) 1971-06-09 1972-06-08 Liquid crystal display electronic timepieces

Country Status (5)

Country Link
JP (1) JPS5241673B1 (en)
CH (3) CH585429B5 (en)
DE (2) DE2228275C3 (en)
FR (2) FR2140523B1 (en)
GB (1) GB1377534A (en)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6037437B2 (en) * 1977-03-30 1985-08-26 カシオ計算機株式会社 calendar display device
DE2813478C2 (en) * 1977-03-30 1982-03-11 Casio Computer Co., Ltd., Tokyo Electronic display device
JPS545461U (en) * 1977-06-14 1979-01-13
JPS5492366A (en) * 1977-12-29 1979-07-21 Seiko Epson Corp Electronic wristwatch with calendar
US4242980A (en) * 1978-02-10 1981-01-06 Friedrich Wilhelm Zube Displaying measuring instrument
FR2421433A1 (en) * 1978-03-30 1979-10-26 Casio Computer Co Ltd Digital timepiece date display - with dates of month in rectangular array of corresponding size to display zone
CH647924GA3 (en) * 1979-10-22 1985-02-28
JPS58109881A (en) * 1981-12-24 1983-06-30 Mitsubishi Electric Corp time display device

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3322485A (en) * 1962-11-09 1967-05-30 Rca Corp Electro-optical elements utilizing an organic nematic compound
FR1350840A (en) * 1962-12-20 1964-01-31 Ass Ouvriers Instr Precision Device for controlling a plurality of digit indicator tubes
US3416133A (en) * 1963-01-07 1968-12-10 Ultronic Systems Corp Shift register controlled market ticker information display
US3194003A (en) * 1963-11-13 1965-07-13 Vogel And Company P Solid state electronic timepiece
US3276198A (en) * 1964-08-26 1966-10-04 Robert A Barbera Automatic clock-calendar
US3509715A (en) * 1966-02-01 1970-05-05 Gen Time Corp Electronic clocks
DE1964390U (en) 1967-03-10 1967-07-20 Friedrich Wilhelm Dipl Willach DETACHABLE FITTING TO CONNECT INDIVIDUAL PARTS TO A FURNITURE PIECE. DGL.
US3505804A (en) * 1968-04-23 1970-04-14 Rca Corp Solid state clock
US3540209A (en) * 1968-07-31 1970-11-17 Timex Corp Horological time display
US3698012A (en) * 1968-12-31 1972-10-10 Texas Instruments Inc Multi-character electronic display
US3576099A (en) * 1969-04-22 1971-04-27 Hamilton Watch Co Solid state timepiece having electro-optical time display
CH1572769A4 (en) * 1969-10-21 1972-10-13

Also Published As

Publication number Publication date
CH615564GA3 (en) 1980-02-15
DE2265339C3 (en) 1982-09-16
DE2265339B2 (en) 1978-05-24
CH585429B5 (en) 1977-02-28
DE2228275B2 (en) 1977-09-22
DE2265339A1 (en) 1977-10-27
JPS5241673B1 (en) 1977-10-19
FR2140523A1 (en) 1973-01-19
DE2228275C3 (en) 1985-08-22
FR2247762B1 (en) 1981-03-06
DE2228275A1 (en) 1973-01-04
FR2140523B1 (en) 1977-12-23
CH615564B (en)
CH851572A4 (en) 1976-07-15
FR2247762A1 (en) 1975-05-09

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PE20 Patent expired after termination of 20 years