CH621458B5 - - Google Patents

Info

Publication number
CH621458B5
CH621458B5 CH1495477A CH1495477A CH621458B5 CH 621458 B5 CH621458 B5 CH 621458B5 CH 1495477 A CH1495477 A CH 1495477A CH 1495477 A CH1495477 A CH 1495477A CH 621458 B5 CH621458 B5 CH 621458B5
Authority
CH
Switzerland
Application number
CH1495477A
Other versions
CH621458GA3 (en
Inventor
Guenter Dr Baur
Waldemar Greubel
Hans Krueger
Alois Dr Schauer
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 CH621458GA3 publication Critical patent/CH621458GA3/xx
Publication of CH621458B5 publication Critical patent/CH621458B5/xx

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

Landscapes

  • Physics & Mathematics (AREA)
  • Chemical & Material Sciences (AREA)
  • General Physics & Mathematics (AREA)
  • Nonlinear Science (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Mathematical Physics (AREA)
  • Organic Chemistry (AREA)
  • Materials Engineering (AREA)
  • Engineering & Computer Science (AREA)
  • Optics & Photonics (AREA)
  • Liquid Crystal (AREA)
  • Devices For Indicating Variable Information By Combining Individual Elements (AREA)
  • Electric Clocks (AREA)
CH1495477A 1977-02-15 1977-12-07 Display arrangement for representing images which contrast optically against a background CH621458GA3 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE2706375A DE2706375C3 (de) 1977-02-15 1977-02-15 Anzeigeanordnung mit einer Lichtventilvorrichtung, insbesondere einer Flüssigkristallzelle

Publications (2)

Publication Number Publication Date
CH621458GA3 CH621458GA3 (en) 1981-02-13
CH621458B5 true CH621458B5 (de) 1981-08-14

Family

ID=6001250

Family Applications (1)

Application Number Title Priority Date Filing Date
CH1495477A CH621458GA3 (en) 1977-02-15 1977-12-07 Display arrangement for representing images which contrast optically against a background

Country Status (11)

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

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2835347A1 (de) * 1978-08-11 1980-02-28 Fraunhofer Ges Forschung Anzeigevorrichtung mit einem elektrooptischen lichtventil
GB2189918B (en) * 1985-07-23 1990-01-04 John Thomas Visual display means
DE3738414A1 (de) * 1987-11-12 1989-05-24 Bosch Gmbh Robert Vorrichtung zur ausleuchtung von passiven informationsanzeigen, vorzugsweise lcd's
EP1341009B1 (de) † 1996-09-24 2006-04-19 Seiko Epson Corporation Beleuchtungsvorrichtung und diese verwendende Anzeigevorrichtung
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 (it) * 1970-12-04 1973-05-21 Hoffmann La Roche Cellula ottica
DE2221441A1 (de) * 1972-05-02 1973-11-15 Bernt Von Grabe Optoelektronischer zeichengenerator
DE2232632C3 (de) * 1972-07-03 1981-09-17 Metall-Invent S.A., Zug Anzeigevorrichtung
JPS50107958A (de) * 1974-01-31 1975-08-25
DE7426201U (de) * 1974-08-01 1974-11-14 Gebrueder Junghans Gmbh Flüssigkristall-Anzeigeeinrichtung, insbesondere für Kleinuhren
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 (de) * 1975-06-12 1976-06-20
CH589307A5 (de) * 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
IT7820211A0 (it) 1978-02-13
SE7801774L (sv) 1978-08-15
DE2706375C3 (de) 1982-08-26
GB1585751A (en) 1981-03-11
DE2706375B2 (de) 1978-11-30
AT368294B (de) 1982-09-27
DE2706375A1 (de) 1978-08-17
BE863987A (fr) 1978-05-29
FR2380609B1 (de) 1982-07-16
IT1092686B (it) 1985-07-12
ATA100478A (de) 1980-12-15
NL7801664A (nl) 1978-08-17
FR2380609A1 (fr) 1978-09-08
JPS53101996A (en) 1978-09-05
CA1108737A (en) 1981-09-08
CH621458GA3 (en) 1981-02-13

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