CH615565GA3 - Electro-optic display device installed in a housing front, and use of the display device - Google Patents

Electro-optic display device installed in a housing front, and use of the display device Download PDF

Info

Publication number
CH615565GA3
CH615565GA3 CH194977A CH194977A CH615565GA3 CH 615565G A3 CH615565G A3 CH 615565GA3 CH 194977 A CH194977 A CH 194977A CH 194977 A CH194977 A CH 194977A CH 615565G A3 CH615565G A3 CH 615565GA3
Authority
CH
Switzerland
Prior art keywords
display device
optic
display surface
electro
housing front
Prior art date
Application number
CH194977A
Other versions
CH615565B (en
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
Publication of CH615565B publication Critical patent/CH615565B/en
Application filed filed Critical
Priority to CH194977A priority Critical patent/CH615565GA3/en
Priority to DE19772711015 priority patent/DE2711015A1/en
Priority to GB6005/78A priority patent/GB1579088A/en
Priority to FR7804291A priority patent/FR2381345A1/en
Publication of CH615565GA3 publication Critical patent/CH615565GA3/en

Links

Classifications

    • G—PHYSICS
    • G04—HOROLOGY
    • G04B—MECHANICALLY-DRIVEN CLOCKS OR WATCHES; MECHANICAL PARTS OF CLOCKS OR WATCHES IN GENERAL; TIME PIECES USING THE POSITION OF THE SUN, MOON OR STARS
    • G04B39/00—Watch crystals; Fastening or sealing of crystals; Clock glasses
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
    • G02B6/04—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings formed by bundles of fibres
    • G02B6/06—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings formed by bundles of fibres the relative position of the fibres being the same at both ends, e.g. for transporting images
    • G02B6/08—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings formed by bundles of fibres the relative position of the fibres being the same at both ends, e.g. for transporting images with fibre bundle in form of plate
    • 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
    • G04G9/0035—Details constructional

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Devices For Indicating Variable Information By Combining Individual Elements (AREA)
  • Electric Clocks (AREA)
  • Liquid Crystal (AREA)

Abstract

For the purpose of producing liquid-crystal wristwatches whose entire display surface can be read even when they are in a tilted state, provision is made of a front fibre-optic cell plate (14) with light-conducting fibres (14a) running perpendicular to the display surface. The display device has, in addition, a cholesteric guest/host liquid-crystal cell. The front fibre-optic cell plate (14) has an optical resolution of 5 to 100 lines per millimetre and a numerical aperture (NA) of 0.5 to 1.05. The measures described furthermore permit the realisation of flat digital watches which are aesthetically pleasing, i.e. provided with dished/cambered front cell plates. <IMAGE>
CH194977A 1977-02-17 1977-02-17 Electro-optic display device installed in a housing front, and use of the display device CH615565GA3 (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
CH194977A CH615565GA3 (en) 1977-02-17 1977-02-17 Electro-optic display device installed in a housing front, and use of the display device
DE19772711015 DE2711015A1 (en) 1977-02-17 1977-03-14 ELECTRO-OPTICAL DISPLAY DEVICE BUILT IN A HOUSING FRONT AND USING THE DISPLAY DEVICE
GB6005/78A GB1579088A (en) 1977-02-17 1978-02-15 Electro-optical display installed in a housing and use of the display
FR7804291A FR2381345A1 (en) 1977-02-17 1978-02-15 OPTO-ELECTRONIC DISPLAY DEVICE MOUNTED IN THE FACE OF A BOX

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH194977A CH615565GA3 (en) 1977-02-17 1977-02-17 Electro-optic display device installed in a housing front, and use of the display device

Publications (2)

Publication Number Publication Date
CH615565B CH615565B (en)
CH615565GA3 true CH615565GA3 (en) 1980-02-15

Family

ID=4222356

Family Applications (1)

Application Number Title Priority Date Filing Date
CH194977A CH615565GA3 (en) 1977-02-17 1977-02-17 Electro-optic display device installed in a housing front, and use of the display device

Country Status (4)

Country Link
CH (1) CH615565GA3 (en)
DE (1) DE2711015A1 (en)
FR (1) FR2381345A1 (en)
GB (1) GB1579088A (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5938591B2 (en) * 1979-02-20 1984-09-18 シャープ株式会社 liquid crystal display device
GB2143103B (en) * 1980-12-22 1985-07-24 Burroughs Corp Integrated circuit electro-optical imaging system
ATE469382T1 (en) 2004-08-13 2010-06-15 Swatch Group Man Serv Ag CLOCK WITH LIGHT GUIDE WATCH GLASS
DE102005011956A1 (en) * 2005-03-14 2006-09-21 Schott Ag Fiber optic arrangement for display devices, in particular with analog or digital displays, as well as devices provided with same
CH705600B1 (en) * 2011-10-07 2022-11-30 Richemont Int Sa Image guide device for clocks.

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3891309A (en) * 1973-12-19 1975-06-24 Honeywell Inc Reflective alterable state material display
DE2461239A1 (en) * 1974-12-23 1976-06-24 Berkel Patent Nv Digital display esp for scales - with liquid crystal cell symbols read through optical fibre plate
GB1500951A (en) * 1974-03-26 1978-02-15 Berkel Patent Nv Optical recording device particularly for use with weighing equipment
JPS521078U (en) * 1975-06-23 1977-01-06

Also Published As

Publication number Publication date
CH615565B (en)
FR2381345A1 (en) 1978-09-15
DE2711015A1 (en) 1978-08-24
GB1579088A (en) 1980-11-12

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