GB1285107A - Clock with digital display - Google Patents

Clock with digital display

Info

Publication number
GB1285107A
GB1285107A GB49705/70A GB4970570A GB1285107A GB 1285107 A GB1285107 A GB 1285107A GB 49705/70 A GB49705/70 A GB 49705/70A GB 4970570 A GB4970570 A GB 4970570A GB 1285107 A GB1285107 A GB 1285107A
Authority
GB
United Kingdom
Prior art keywords
panel
pin
elements
time base
display
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
GB49705/70A
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.)
Rolex SA
Original Assignee
Montres Rolex SA
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 Montres Rolex SA filed Critical Montres Rolex SA
Publication of GB1285107A publication Critical patent/GB1285107A/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G04—HOROLOGY
    • G04G—ELECTRONIC TIME-PIECES
    • G04G9/00—Visual time or date indication means
    • G04G9/08—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
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
    • G09F9/00—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements
    • G09F9/30—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements in which the desired character or characters are formed by combining individual elements
    • G09F9/302—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements in which the desired character or characters are formed by combining individual elements characterised by the form or geometrical disposition of the individual elements

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Chemical & Material Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Electric Clocks (AREA)
  • Devices For Indicating Variable Information By Combining Individual Elements (AREA)

Abstract

1285107 Electronic watches MANUFACTURE DES MONTRES ROLEX S A 20 Oct 1970 [21 Oct 1969] 49705/70 Heading G3T A battery powered electronic timepiece comprises a digital display panel of electroluminescent elements which are selectively energized by current pulses from integrated circuit logic units and frequency dividers fixed on the rear of the panel, the pulses being derived from a time base including a quartz crystal oscillator or tuning fork. The display panel may indicate hours, mins, secs in a 12 hour or 24 hour cycle system, also the date. The panel is arranged to be readily detachable from the timepiece case and from the time base and power source. The elements 14 may be arranged as shown, Fig. 1, and may be electroluminescent diodes each diode having a terminal pin 15 connected respectively by wires 29, Fig.2, to frequency dividers in an integrated circuit 29, and being embedded in insulating material 33. The other terminal of each diode element contacts a conductive layer on the rear surface of a transparent plate 31 and connecting the other terminals to a pin 16. The pin 16 engages a socket in the timepiece casing and connected to the time base oscillator. Two other pins (not shown) connect the panel to the battery. There may be nine integrated circuits as circuit 28, a respective one to each time display cell 1 to 6 and a respective one to each pair of date indice cells 9-10, 7-8, 11-12. The display cells may alternatively comprise an active medium between the transparent conductive plate and the cell bottom and insulated from elements 14 which may be aluminium. The active medium may be a liquid of crystalline structure which is normally transparent and becomes opaque in an electric field or it may be a solid layer with a phosphorous base, the field being produced by a current pulse between the respective element 14 and conductive plate. As further alternatives each display cell may comprise a matrix of diodes, as illustrated, Fig. 3 (not shown), or a matrix of luminescent-gas tubes.
GB49705/70A 1969-10-21 1970-10-20 Clock with digital display Expired GB1285107A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH1572769A CH567299A (en) 1969-10-21 1969-10-21

Publications (1)

Publication Number Publication Date
GB1285107A true GB1285107A (en) 1972-08-09

Family

ID=4411429

Family Applications (1)

Application Number Title Priority Date Filing Date
GB49705/70A Expired GB1285107A (en) 1969-10-21 1970-10-20 Clock with digital display

Country Status (5)

Country Link
US (1) US3691755A (en)
JP (1) JPS502111B1 (en)
CH (2) CH1572769A4 (en)
DE (1) DE2050067B2 (en)
GB (1) GB1285107A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2166579A (en) * 1984-10-03 1986-05-08 Schoeller & Co Elektrotech Indicator device

Families Citing this family (24)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
USRE29250E (en) * 1971-06-06 1977-06-07 Kabushiki Kaisha Suwa Seikosha Digital electronic watch having calendar display arrangement
JPS5241673B1 (en) * 1971-06-09 1977-10-19
US3962859A (en) * 1971-08-20 1976-06-15 Kabushiki Kaisha Daini Seikosha Cell replacement indication device
US3922842A (en) * 1971-10-28 1975-12-02 Suwa Seikosha Kk Display means for solid state electronic timepiece
US3796037A (en) * 1971-10-28 1974-03-12 K Fujita Display method for solid state electronic timepiece
GB1391637A (en) * 1971-12-27 1975-04-23 Suwa Seikosha Kk Electronic timepieces and electronic calculators
US3925977A (en) * 1972-05-02 1975-12-16 Suwa Seikosha Kk Display system for showing the days of the week in an electrical timepiece
US3738099A (en) * 1972-06-07 1973-06-12 Seiko Instr & Electronics Digital electronic watch having calendar display arrangement
US3886726A (en) * 1972-06-19 1975-06-03 Texas Instruments Inc Electronic time keeping system
JPS5434297B2 (en) * 1972-06-24 1979-10-25
GB1433130A (en) * 1972-11-09 1976-04-22 Secr Defence Substituted biphenyl and polyphenyl compounds and liquid crystal materials and devices containing them
US3866313A (en) * 1973-04-11 1975-02-18 Microma Inc Method of manufacturing liquid crystal display
JPS5616431B2 (en) * 1973-06-18 1981-04-16
US3849979A (en) * 1973-07-24 1974-11-26 Ise Electronics Corp Electronic digital clocks
GB1472260A (en) * 1973-10-29 1977-05-04 Murrell N Electro optical display system in a time-piece
US3981558A (en) * 1973-11-12 1976-09-21 Timex Corporation Liquid crystal electro-optical display
JPS5210775A (en) * 1975-07-15 1977-01-27 Seiko Instr & Electronics Ltd Electronic watch
AU499808B1 (en) * 1978-05-18 1979-05-03 Ypsilantis, John Alphanumeric display
GB2184280B (en) * 1985-04-16 1989-07-05 Telebeam Int Ltd Display apparatus
US4845689A (en) * 1988-04-04 1989-07-04 Michael Vole Clock
DE29509931U1 (en) * 1995-06-22 1996-02-01 Grafenhorst, Heinrich, Dipl.-Ing., 28215 Bremen Clock, advertising clock
US6924746B2 (en) * 2000-08-09 2005-08-02 Terrance John Hermary Device and method to establish temporal correspondence in multiple sensor configurations
US6563764B2 (en) * 2001-01-05 2003-05-13 Equitime, Inc. Facilitated setting/resetting of digital date displays
FR2924351B1 (en) * 2007-12-03 2011-09-30 Valois Sas DEVICE FOR DISPENSING FLUID PRODUCT

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2166579A (en) * 1984-10-03 1986-05-08 Schoeller & Co Elektrotech Indicator device

Also Published As

Publication number Publication date
CH1572769A4 (en) 1972-10-13
JPS502111B1 (en) 1975-01-23
US3691755A (en) 1972-09-19
DE2050067B2 (en) 1975-09-18
CH567299A (en) 1975-09-30
DE2050067A1 (en) 1971-05-06

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PCNP Patent ceased through non-payment of renewal fee