GB2019048B - Analogue liquid crystal timepiece - Google Patents

Analogue liquid crystal timepiece

Info

Publication number
GB2019048B
GB2019048B GB7907863A GB7907863A GB2019048B GB 2019048 B GB2019048 B GB 2019048B GB 7907863 A GB7907863 A GB 7907863A GB 7907863 A GB7907863 A GB 7907863A GB 2019048 B GB2019048 B GB 2019048B
Authority
GB
United Kingdom
Prior art keywords
indication
liquid crystal
displaying
calendar
time
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
GB7907863A
Other versions
GB2019048A (en
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.)
Suwa Seikosha KK
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
Priority claimed from JP2568478A external-priority patent/JPS54118875A/en
Priority claimed from JP3264278A external-priority patent/JPS54125071A/en
Application filed by Suwa Seikosha KK filed Critical Suwa Seikosha KK
Publication of GB2019048A publication Critical patent/GB2019048A/en
Application granted granted Critical
Publication of GB2019048B publication Critical patent/GB2019048B/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G04—HOROLOGY
    • G04G—ELECTRONIC TIME-PIECES
    • G04G9/00—Visual time or date indication means
    • G04G9/02—Visual time or date indication means by selecting desired characters out of a number of characters or by selecting indicating elements the position of which represent the time, e.g. by using multiplexing techniques
    • G04G9/06—Visual time or date indication means by selecting desired characters out of a number of characters or by selecting indicating elements the position of which represent the time, e.g. by using multiplexing techniques 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 Substances (AREA)

Abstract

An analog liquid crystal timepiece includes a liquid crystal display device which has two or three concentrically arranged arrays of radially disposed display elements for displaying the time of day indication in analog form as Fig. 1(a) and for displaying calendar indication or chronograph indication as Fig. 1(b). A manually operable switch is provided for selectively displaying the time of day indication and the calendar or chronograph indication. When two of the indications overlap they are distinguished from one another by producing visually different displays, for example, of different contrast. <IMAGE>
GB7907863A 1978-03-07 1979-03-06 Analogue liquid crystal timepiece Expired GB2019048B (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2568478A JPS54118875A (en) 1978-03-07 1978-03-07 Analog type liquid crystal watch
JP3264278A JPS54125071A (en) 1978-03-22 1978-03-22 Analog type liquid crystal watch

Publications (2)

Publication Number Publication Date
GB2019048A GB2019048A (en) 1979-10-24
GB2019048B true GB2019048B (en) 1982-09-08

Family

ID=26363341

Family Applications (1)

Application Number Title Priority Date Filing Date
GB7907863A Expired GB2019048B (en) 1978-03-07 1979-03-06 Analogue liquid crystal timepiece

Country Status (4)

Country Link
CH (1) CH636242B (en)
DE (1) DE2908764A1 (en)
FR (1) FR2419538A1 (en)
GB (1) GB2019048B (en)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS55104784A (en) * 1979-02-06 1980-08-11 Seiko Epson Corp Liquid crystal watch
JPS55137583A (en) * 1979-04-13 1980-10-27 Hitachi Ltd Liquid crystal display unit drive system
JPS55163487A (en) * 1979-06-07 1980-12-19 Seikosha Co Ltd Displaying device
CH631861GA3 (en) * 1980-02-18 1982-09-15
GB2204429B (en) * 1987-04-24 1991-09-04 Salim Emile Kahil Timepiece.
GB2213965A (en) * 1987-12-23 1989-08-23 Goro Saito Analog display on an electronic timepiece
EP2652563B1 (en) * 2010-12-16 2022-07-27 The Swatch Group Research and Development Ltd. Method and device for obtaining a continuous movement of a display means
DE102011117129A1 (en) 2011-10-28 2013-05-02 Leonhard Kurz Stiftung & Co. Kg display

Also Published As

Publication number Publication date
CH636242B (en)
DE2908764A1 (en) 1979-09-13
GB2019048A (en) 1979-10-24
CH636242GA3 (en) 1983-05-31
FR2419538A1 (en) 1979-10-05

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Legal Events

Date Code Title Description
PE20 Patent expired after termination of 20 years

Effective date: 19990305