FR2380609A1 - DEVICE INCLUDING A LIGHT MODULATOR, ESPECIALLY FOR DISPLAY - Google Patents

DEVICE INCLUDING A LIGHT MODULATOR, ESPECIALLY FOR DISPLAY

Info

Publication number
FR2380609A1
FR2380609A1 FR7803643A FR7803643A FR2380609A1 FR 2380609 A1 FR2380609 A1 FR 2380609A1 FR 7803643 A FR7803643 A FR 7803643A FR 7803643 A FR7803643 A FR 7803643A FR 2380609 A1 FR2380609 A1 FR 2380609A1
Authority
FR
France
Prior art keywords
display
light modulator
device including
radioactive substance
enclosing
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.)
Granted
Application number
FR7803643A
Other languages
French (fr)
Other versions
FR2380609B1 (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.)
Siemens AG
Original Assignee
Siemens AG
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 Siemens AG filed Critical Siemens AG
Publication of FR2380609A1 publication Critical patent/FR2380609A1/en
Application granted granted Critical
Publication of FR2380609B1 publication Critical patent/FR2380609B1/fr
Granted legal-status Critical Current

Links

Classifications

    • 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
    • G02F1/133617—Illumination with ultraviolet light; Luminescent elements or materials associated to the cell
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
    • C09K11/00—Luminescent, e.g. electroluminescent, chemiluminescent materials
    • C09K11/04—Luminescent, e.g. electroluminescent, chemiluminescent materials containing natural or artificial radioactive elements or unspecified radioactive elements
    • 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

Abstract

L'invention concerne un dispositif comportant un modulateur de lumière, notamment pour l'affichage. Ce dispositif comporte deux polariseurs linéaires 1, 4, enserrant deux plaques de support 2, 3 ainsi qu'une feuille absorbante 6 et une plaque fluorescente 5 sur laquelle est fixée un dispositif d'éclairage additionnel 15 contenant une substance radioactive et une substance luminescente pouvant être activée par une substance radioactive. Application notamment aux bracelets-montres alimentés par piles.The invention relates to a device comprising a light modulator, in particular for display. This device comprises two linear polarizers 1, 4, enclosing two support plates 2, 3 as well as an absorbent sheet 6 and a fluorescent plate 5 on which is fixed an additional lighting device 15 containing a radioactive substance and a luminescent substance capable of be activated by a radioactive substance. Application in particular to battery-powered watch straps.

FR7803643A 1977-02-15 1978-02-09 DEVICE INCLUDING A LIGHT MODULATOR, ESPECIALLY FOR DISPLAY Granted FR2380609A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE2706375A DE2706375C3 (en) 1977-02-15 1977-02-15 Display arrangement with a light valve device, in particular a liquid crystal cell

Publications (2)

Publication Number Publication Date
FR2380609A1 true FR2380609A1 (en) 1978-09-08
FR2380609B1 FR2380609B1 (en) 1982-07-16

Family

ID=6001250

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7803643A Granted FR2380609A1 (en) 1977-02-15 1978-02-09 DEVICE INCLUDING A LIGHT MODULATOR, ESPECIALLY FOR DISPLAY

Country Status (11)

Country Link
JP (1) JPS53101996A (en)
AT (1) AT368294B (en)
BE (1) BE863987A (en)
CA (1) CA1108737A (en)
CH (1) CH621458GA3 (en)
DE (1) DE2706375C3 (en)
FR (1) FR2380609A1 (en)
GB (1) GB1585751A (en)
IT (1) IT1092686B (en)
NL (1) NL7801664A (en)
SE (1) SE7801774L (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2835347A1 (en) * 1978-08-11 1980-02-28 Fraunhofer Ges Forschung DISPLAY DEVICE WITH AN ELECTROOPTIC LIGHT VALVE
GB2189918B (en) * 1985-07-23 1990-01-04 John Thomas Visual display means
DE3738414A1 (en) * 1987-11-12 1989-05-24 Bosch Gmbh Robert Device for illuminating passive information displays, preferably LCDs
WO1998013709A1 (en) † 1996-09-24 1998-04-02 Seiko Epson Corporation Illuminating device and display using the device
WO2002054445A2 (en) * 2000-12-28 2002-07-11 Guy Andrew Vaz Photon power cell

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IT946051B (en) * 1970-12-04 1973-05-21 Hoffmann La Roche OPTICAL CELL
DE2221441A1 (en) * 1972-05-02 1973-11-15 Bernt Von Grabe OPTOELECTRONIC SIGN GENERATOR
DE2232632C3 (en) * 1972-07-03 1981-09-17 Metall-Invent S.A., Zug Display device
JPS50107958A (en) * 1974-01-31 1975-08-25
DE7426201U (en) * 1974-08-01 1974-11-14 Gebrueder Junghans Gmbh Liquid crystal display devices, in particular for small watches
US3950078A (en) * 1974-10-16 1976-04-13 Timex Corporation Liquid crystal display
US3959655A (en) * 1975-02-06 1976-05-25 Eastman Kodak Company Light source for optical sound recording and reproduction apparatus
DD120724A1 (en) * 1975-06-12 1976-06-20
CH589307A5 (en) * 1975-06-27 1977-06-30 Bbc Brown Boveri & Cie
JPS526496A (en) * 1975-07-04 1977-01-18 Toshiba Corp Liquid crystal indicator

Also Published As

Publication number Publication date
FR2380609B1 (en) 1982-07-16
IT7820211A0 (en) 1978-02-13
DE2706375B2 (en) 1978-11-30
ATA100478A (en) 1980-12-15
CH621458GA3 (en) 1981-02-13
AT368294B (en) 1982-09-27
DE2706375A1 (en) 1978-08-17
JPS53101996A (en) 1978-09-05
BE863987A (en) 1978-05-29
CH621458B5 (en) 1981-08-14
NL7801664A (en) 1978-08-17
IT1092686B (en) 1985-07-12
CA1108737A (en) 1981-09-08
SE7801774L (en) 1978-08-15
GB1585751A (en) 1981-03-11
DE2706375C3 (en) 1982-08-26

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Legal Events

Date Code Title Description
ST Notification of lapse