JPS5767887A - Digital display watch - Google Patents

Digital display watch

Info

Publication number
JPS5767887A
JPS5767887A JP55143139A JP14313980A JPS5767887A JP S5767887 A JPS5767887 A JP S5767887A JP 55143139 A JP55143139 A JP 55143139A JP 14313980 A JP14313980 A JP 14313980A JP S5767887 A JPS5767887 A JP S5767887A
Authority
JP
Japan
Prior art keywords
light
photosensor
decision
displayed
intensity
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.)
Pending
Application number
JP55143139A
Other languages
Japanese (ja)
Inventor
Keizo Nakamura
Tomomi Murakami
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.)
Citizen Holdings Co Ltd
Citizen Watch Co Ltd
Original Assignee
Citizen Holdings Co Ltd
Citizen Watch Co Ltd
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 Citizen Holdings Co Ltd, Citizen Watch Co Ltd filed Critical Citizen Holdings Co Ltd
Priority to JP55143139A priority Critical patent/JPS5767887A/en
Publication of JPS5767887A publication Critical patent/JPS5767887A/en
Pending 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

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Control Of Indicators Other Than Cathode Ray Tubes (AREA)
  • Devices For Indicating Variable Information By Combining Individual Elements (AREA)
  • Electric Clocks (AREA)

Abstract

PURPOSE:To make distinct displaying possible in a dark place as well by changing the sizes of characters through decision of a photosensor. CONSTITUTION:Incident light passes through a liquid crystal display cell 3 and is reflected by a reflection plate 4. The intensity of the light arriving at the plate 4 is measured with a photosensor 5b. Depending upon the intensity of the light, the brightness of the display surface is judged and in accordance with the result of the decision, the type of the display is changed over. For example, when the light is irradiated sufficiently, the current time is displayed in an upper step and an alarm set time in a lower step. When the light is not sufficiently irradiated to the display surface, prescribed figures are displayed by thick lines.
JP55143139A 1980-10-14 1980-10-14 Digital display watch Pending JPS5767887A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP55143139A JPS5767887A (en) 1980-10-14 1980-10-14 Digital display watch

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP55143139A JPS5767887A (en) 1980-10-14 1980-10-14 Digital display watch

Publications (1)

Publication Number Publication Date
JPS5767887A true JPS5767887A (en) 1982-04-24

Family

ID=15331831

Family Applications (1)

Application Number Title Priority Date Filing Date
JP55143139A Pending JPS5767887A (en) 1980-10-14 1980-10-14 Digital display watch

Country Status (1)

Country Link
JP (1) JPS5767887A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1450220A3 (en) * 2003-02-19 2006-05-17 Seiko Instruments Inc. Portable electronic apparatus

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1450220A3 (en) * 2003-02-19 2006-05-17 Seiko Instruments Inc. Portable electronic apparatus

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