CH534916A - Dispositif d'affichage à cristal liquide pour l'horlogerie - Google Patents

Dispositif d'affichage à cristal liquide pour l'horlogerie

Info

Publication number
CH534916A
CH534916A CH1370870A CH1370870A CH534916A CH 534916 A CH534916 A CH 534916A CH 1370870 A CH1370870 A CH 1370870A CH 1370870 A CH1370870 A CH 1370870A CH 534916 A CH534916 A CH 534916A
Authority
CH
Switzerland
Prior art keywords
watchmaking
liquid crystal
display device
crystal display
liquid
Prior art date
Application number
CH1370870A
Other languages
English (en)
Inventor
Portmann Hubert
Original Assignee
Longines Montres Comp D
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 Longines Montres Comp D filed Critical Longines Montres Comp D
Priority to CH1370870A priority Critical patent/CH534916A/fr
Priority to CH1370870D priority patent/CH1370870A4/xx
Priority to GB3374471A priority patent/GB1346348A/en
Priority to DE2138063A priority patent/DE2138063C3/de
Priority to US00170096A priority patent/US3768887A/en
Priority to FR7132556A priority patent/FR2106550B1/fr
Publication of CH534916A publication Critical patent/CH534916A/fr

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
    • 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
    • G04B19/00—Indicating the time by visual means
    • G04B19/30—Illumination of dials or hands
    • G04B19/32—Illumination of dials or hands by luminescent substances
    • 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
    • G04G9/0041—Illumination devices
    • G—PHYSICS
    • G02—OPTICS
    • G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
    • G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour 
    • G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  based on liquid crystals, e.g. single liquid crystal display cells
    • G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
    • G02F1/1333—Constructional arrangements; Manufacturing methods
    • G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors
    • G02F1/1336—Illuminating devices
    • G02F1/133614—Illuminating devices using photoluminescence, e.g. phosphors illuminated by UV or blue light
    • G—PHYSICS
    • G02—OPTICS
    • G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
    • G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour 
    • G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  based on liquid crystals, e.g. single liquid crystal display cells
    • G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
    • G02F1/1333—Constructional arrangements; Manufacturing methods
    • G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors
    • G02F1/1336—Illuminating devices
    • G02F1/133616—Front illuminating devices

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Electric Clocks (AREA)
  • Liquid Crystal (AREA)
  • Devices For Indicating Variable Information By Combining Individual Elements (AREA)
CH1370870A 1970-09-16 1970-09-16 Dispositif d'affichage à cristal liquide pour l'horlogerie CH534916A (fr)

Priority Applications (6)

Application Number Priority Date Filing Date Title
CH1370870A CH534916A (fr) 1970-09-16 1970-09-16 Dispositif d'affichage à cristal liquide pour l'horlogerie
CH1370870D CH1370870A4 (fr) 1970-09-16 1970-09-16
GB3374471A GB1346348A (en) 1970-09-16 1971-07-19 Watch or clock cover glass including a liquid crystal display device
DE2138063A DE2138063C3 (de) 1970-09-16 1971-07-29 Anzeigevorrichtung für Kleinuhren isbesondere Armbanduhren, mit einer flüssigkristallinen Schicht
US00170096A US3768887A (en) 1970-09-16 1971-08-09 Watch or clock cover glass including a liquid display device
FR7132556A FR2106550B1 (fr) 1970-09-16 1971-09-09

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH1370870A CH534916A (fr) 1970-09-16 1970-09-16 Dispositif d'affichage à cristal liquide pour l'horlogerie

Publications (1)

Publication Number Publication Date
CH534916A true CH534916A (fr) 1972-10-13

Family

ID=4394666

Family Applications (2)

Application Number Title Priority Date Filing Date
CH1370870D CH1370870A4 (fr) 1970-09-16 1970-09-16
CH1370870A CH534916A (fr) 1970-09-16 1970-09-16 Dispositif d'affichage à cristal liquide pour l'horlogerie

Family Applications Before (1)

Application Number Title Priority Date Filing Date
CH1370870D CH1370870A4 (fr) 1970-09-16 1970-09-16

Country Status (5)

Country Link
US (1) US3768887A (fr)
CH (2) CH1370870A4 (fr)
DE (1) DE2138063C3 (fr)
FR (1) FR2106550B1 (fr)
GB (1) GB1346348A (fr)

Families Citing this family (15)

* 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
US4033672A (en) * 1971-11-24 1977-07-05 Ing. C. Olivetti & C., S.P.A. Ufficio Brevetti Liquid crystal devices
US3947091A (en) * 1974-09-19 1976-03-30 Rockwell International Corporation Reflective display apparatus
DE2616669C2 (de) * 1976-04-15 1986-10-09 Licentia Patent-Verwaltungs-Gmbh, 6000 Frankfurt Strahlungskollektor und -verdichter in Form einer fluoreszierenden Kunststoffplatte und Anzeigevorrichtung hiermit
DE2640909C2 (de) * 1976-09-10 1987-05-07 Licentia Patent-Verwaltungs-Gmbh, 6000 Frankfurt Anzeigevorrichtung mit einem Strahlungskollektor und -verdichter
US4043116A (en) * 1976-01-29 1977-08-23 Metallprodukte A.G. Grenchen Timepiece comprising a flat display device exposed through an opening in a case
CH609193B5 (fr) * 1976-02-25 1979-08-31 Ebauches Sa Cellule d'affichage électro-optique passif et procédé pour sa fabrication
DE2660996C2 (de) * 1976-04-15 1986-08-28 Licentia Patent-Verwaltungs-Gmbh, 6000 Frankfurt Anzeigevorrichtung mit einem Strahlungskollektor und -verdichter
US4124279A (en) * 1977-07-18 1978-11-07 Hughes Aircraft Company Reflector focused light trap for a liquid crystal display
US4263594A (en) * 1978-06-19 1981-04-21 Izon Corporation Electro-optical display design
JPS59120983A (ja) * 1982-12-28 1984-07-12 Matsushita Electric Works Ltd 太陽電池時計
US5329502A (en) * 1993-12-10 1994-07-12 Haring Chad T Light bending watch apparatus
GB0028890D0 (en) * 2000-11-27 2001-01-10 Isis Innovation Visual display screen arrangement
GB0223883D0 (en) * 2002-10-15 2002-11-20 Seamless Display Ltd Visual display screen arrangement
EP2264687A4 (fr) * 2008-03-31 2011-10-19 Sharp Kk Dispositif d'affichage

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH232944A (fr) * 1943-04-05 1944-06-30 Desfourneaux Eugene Montre à éclairage dit "radium".
GB774577A (en) * 1952-11-07 1957-05-15 British Thomson Houston Co Ltd Improvements relating to the illumination of instrument dials
US2847970A (en) * 1955-02-16 1958-08-19 Thomas A Smith Transilluminated dial
CH346178A (fr) * 1958-04-18 1960-04-30 Kyburz & Cie Verre pour couvrir le cadran d'un instrument indicateur
US3499112A (en) * 1967-03-31 1970-03-03 Rca Corp Electro-optical device

Also Published As

Publication number Publication date
DE2138063C3 (de) 1978-12-07
CH1370870A4 (fr) 1972-10-13
DE2138063B2 (de) 1972-11-23
FR2106550B1 (fr) 1974-09-06
FR2106550A1 (fr) 1972-05-05
DE2138063A1 (de) 1972-03-23
GB1346348A (en) 1974-02-06
US3768887A (en) 1973-10-30

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