CA931768A - Solid state timepiece with liquid crystal display - Google Patents

Solid state timepiece with liquid crystal display

Info

Publication number
CA931768A
CA931768A CA127395A CA127395A CA931768A CA 931768 A CA931768 A CA 931768A CA 127395 A CA127395 A CA 127395A CA 127395 A CA127395 A CA 127395A CA 931768 A CA931768 A CA 931768A
Authority
CA
Canada
Prior art keywords
liquid crystal
crystal display
solid state
timepiece
state timepiece
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
CA127395A
Other versions
CA127395S (en
Inventor
M. Bergey John
S. Walton Richard
L. Blouch Eric
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.)
Hamilton Watch Co
Original Assignee
Hamilton Watch Co
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 Hamilton Watch Co filed Critical Hamilton Watch Co
Application granted granted Critical
Publication of CA931768A publication Critical patent/CA931768A/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G04—HOROLOGY
    • G04G—ELECTRONIC TIME-PIECES
    • G04G9/00—Visual time or date indication means
    • G04G9/0023—Visual time or date indication means by light valves in general
    • G04G9/0029—Details
    • G04G9/0047—Details electrical, e.g. selection or application of the operating voltage
    • G—PHYSICS
    • G04—HOROLOGY
    • G04G—ELECTRONIC TIME-PIECES
    • G04G9/00—Visual time or date indication means
    • G04G9/08—Visual time or date indication means by building-up characters using a combination of indicating elements, e.g. by using multiplexing techniques
    • G04G9/12—Visual time or date indication means by building-up characters using a combination of indicating elements, e.g. by using multiplexing techniques using light valves, e.g. liquid crystals

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Chemical & Material Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Electric Clocks (AREA)
  • Liquid Crystal Display Device Control (AREA)
CA127395A 1971-03-12 1971-11-10 Solid state timepiece with liquid crystal display Expired CA931768A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US12367271A 1971-03-12 1971-03-12

Publications (1)

Publication Number Publication Date
CA931768A true CA931768A (en) 1973-08-14

Family

ID=22410129

Family Applications (1)

Application Number Title Priority Date Filing Date
CA127395A Expired CA931768A (en) 1971-03-12 1971-11-10 Solid state timepiece with liquid crystal display

Country Status (7)

Country Link
US (1) US3701249A (en)
JP (1) JPS5328461Y2 (en)
CA (1) CA931768A (en)
CH (1) CH363072A4 (en)
DE (1) DE2210454B2 (en)
FR (1) FR2128761B1 (en)
GB (1) GB1358707A (en)

Families Citing this family (30)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3992081A (en) * 1969-06-11 1976-11-16 Kabushiki Kaisha Suwa Seikosha Liquid crystal display device with enhanged contrast
USRE29250E (en) * 1971-06-06 1977-06-07 Kabushiki Kaisha Suwa Seikosha Digital electronic watch having calendar display arrangement
JPS5644438B2 (en) * 1972-03-29 1981-10-19
US3855783A (en) * 1972-04-20 1974-12-24 Optel Corp Digital electronic timepiece
US3809994A (en) * 1972-06-19 1974-05-07 Texas Instruments Inc Low power dc-dc converter employing intermittent bursts of blocking oscillations
JPS4969174U (en) * 1972-09-27 1974-06-17
JPS5534388B2 (en) * 1972-10-05 1980-09-06
JPS5311200B2 (en) * 1973-01-19 1978-04-19
JPS49118166U (en) * 1973-02-03 1974-10-09
US4116544A (en) * 1973-02-12 1978-09-26 Beckman Instruments, Inc. Liquid crystal reflective display apparatus
JPS5751076B2 (en) * 1973-08-02 1982-10-30
US4027305A (en) * 1973-08-09 1977-05-31 Canon Kabushiki Kaisha System for driving liquid crystal display device
US3864905A (en) * 1973-11-14 1975-02-11 Hoffmann La Roche Horological instrument incorporating means for illuminating a liquid crystal display
FR2309000A1 (en) * 1975-04-25 1976-11-19 Cii Control circuit for liquid crystal display - prevents polarisation phenomena due to DC component of excitation current
US3968641A (en) * 1975-05-12 1976-07-13 Hughes Aircraft Company Digital watch with oscillator/divider power selection circuitry
JPS5210971A (en) * 1975-07-04 1977-01-27 Yoshikazu Shoda Sludge filter device
JPS5232374A (en) * 1975-09-08 1977-03-11 Citizen Watch Co Ltd Electronic watch
JPS5296064A (en) * 1976-02-09 1977-08-12 Seiko Epson Corp Electronic timepiece
JPS5473079A (en) * 1977-11-22 1979-06-12 Copal Co Ltd Time indicator for electronic digital car clock
US4271497A (en) * 1977-12-16 1981-06-02 Terzian Berj A Quadri-balanced digital time displays
US4270196A (en) * 1977-12-16 1981-05-26 Terzian Berj A Balanced complementary digital time displays
US4264966A (en) * 1977-12-16 1981-04-28 Terzian Berj A Balanced digital time displays
JPS54141053A (en) * 1978-04-24 1979-11-01 Yamada Kogyo Kk Preetreatment method of raw sewage
US4483628A (en) * 1979-06-29 1984-11-20 Terzian Beri A Balanced chronograph digital time display
US5064277A (en) * 1991-01-28 1991-11-12 Eastman Kodak Company Operation of a light modulator of the planar electrode type
DE19757564A1 (en) * 1997-12-23 1999-07-01 Mannesmann Vdo Ag Display device
FR2781928B1 (en) * 1998-07-28 2000-12-08 Opsis DEVICE COMPRISING A SEMICONDUCTOR CHIP WITH ORIGINAL INSULATING AND TRANSPARENT SUBSTRATE
DE10339020A1 (en) * 2003-08-25 2005-03-24 Fehring, Hannes, Dipl.-Ing. Method and device for cleaning sails
EP2290478A1 (en) * 2009-09-01 2011-03-02 ETA SA Manufacture Horlogère Suisse Covering element for a wristwatch
JP6798470B2 (en) * 2017-11-08 2020-12-09 カシオ計算機株式会社 Electronic clocks, display control methods, and programs

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3505804A (en) * 1968-04-23 1970-04-14 Rca Corp Solid state clock
US3576099A (en) * 1969-04-22 1971-04-27 Hamilton Watch Co Solid state timepiece having electro-optical time display
US3654606A (en) * 1969-11-06 1972-04-04 Rca Corp Alternating voltage excitation of liquid crystal display matrix

Also Published As

Publication number Publication date
FR2128761B1 (en) 1977-04-01
CH363072A4 (en) 1976-04-15
US3701249A (en) 1972-10-31
DE2210454A1 (en) 1972-09-28
JPS5328461Y2 (en) 1978-07-18
DE2210454B2 (en) 1976-12-16
GB1358707A (en) 1974-07-03
FR2128761A1 (en) 1972-10-20
JPS4716465U (en) 1972-10-26

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