FR2380567A1 - Dispositif pour representer des images claires sur un fond sombre - Google Patents

Dispositif pour representer des images claires sur un fond sombre

Info

Publication number
FR2380567A1
FR2380567A1 FR7803651A FR7803651A FR2380567A1 FR 2380567 A1 FR2380567 A1 FR 2380567A1 FR 7803651 A FR7803651 A FR 7803651A FR 7803651 A FR7803651 A FR 7803651A FR 2380567 A1 FR2380567 A1 FR 2380567A1
Authority
FR
France
Prior art keywords
dark background
clear images
representing clear
support plate
representing
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
FR7803651A
Other languages
English (en)
Other versions
FR2380567B1 (fr
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 FR2380567A1 publication Critical patent/FR2380567A1/fr
Application granted granted Critical
Publication of FR2380567B1 publication Critical patent/FR2380567B1/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
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21K—NON-ELECTRIC LIGHT SOURCES USING LUMINESCENCE; LIGHT SOURCES USING ELECTROCHEMILUMINESCENCE; LIGHT SOURCES USING CHARGES OF COMBUSTIBLE MATERIAL; LIGHT SOURCES USING SEMICONDUCTOR DEVICES AS LIGHT-GENERATING ELEMENTS; LIGHT SOURCES NOT OTHERWISE PROVIDED FOR
    • F21K2/00—Non-electric light sources using luminescence; Light sources using electrochemiluminescence
    • 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
    • G02F1/137—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 characterised by the electro-optical or magneto-optical effect, e.g. field-induced phase transition, orientation effect, guest-host interaction or dynamic scattering
    • G02F1/13725—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 characterised by the electro-optical or magneto-optical effect, e.g. field-induced phase transition, orientation effect, guest-host interaction or dynamic scattering based on guest-host interaction

Landscapes

  • Physics & Mathematics (AREA)
  • Nonlinear Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Electromagnetism (AREA)
  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mathematical Physics (AREA)
  • Liquid Crystal (AREA)
  • Devices For Indicating Variable Information By Combining Individual Elements (AREA)

Abstract

L'invention concerne un dispositif pour représenter des images claires sur un fond sombre. Ce dispositif est constitué par un polariseur linéaire 1, une plaque de support avant 2, une plaque de support arrière 3, une plaque fluorescente 4 et une feuille d'absorption 5, ainsi qu'un cadre formant entretoise 8 formant avec les deux plaques de support une chambre pour une couche de cristal liquide 9 qui contient au moins une substance colorante pléochroïque. Application notamment aux dispositifs d'affichage électro-optiques, notamment pour bracelets-montres.
FR7803651A 1977-02-15 1978-02-09 Dispositif pour representer des images claires sur un fond sombre Granted FR2380567A1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE2706405A DE2706405C3 (de) 1977-02-15 1977-02-15 Anzeigeanordnung zur Darstellung von hellen Bildern vor dunklem Hintergrund

Publications (2)

Publication Number Publication Date
FR2380567A1 true FR2380567A1 (fr) 1978-09-08
FR2380567B1 FR2380567B1 (fr) 1982-08-20

Family

ID=6001261

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7803651A Granted FR2380567A1 (fr) 1977-02-15 1978-02-09 Dispositif pour representer des images claires sur un fond sombre

Country Status (11)

Country Link
US (1) US4405210A (fr)
JP (1) JPS53101999A (fr)
BE (1) BE863990A (fr)
CA (1) CA1106951A (fr)
CH (1) CH618833B5 (fr)
DE (1) DE2706405C3 (fr)
FR (1) FR2380567A1 (fr)
GB (1) GB1585752A (fr)
IT (1) IT1092683B (fr)
NL (1) NL7801661A (fr)
SE (1) SE7801776L (fr)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS55108690A (en) * 1979-02-15 1980-08-21 Sharp Kk Multiple color* fluorescence scattering type liquid crystal display unit
JPS5625445U (fr) * 1979-08-03 1981-03-09
DE3123369A1 (de) * 1981-06-12 1983-02-03 Vdo Schindling Lichtleiter
JPS5895327A (ja) * 1981-12-01 1983-06-06 Alps Electric Co Ltd カラ−液晶表示素子
US4693560A (en) * 1986-09-25 1987-09-15 Taliq Corporation Double layer display
KR0131015B1 (ko) * 1987-10-06 1998-04-16 후루모또 지로 액정표시 소자
US4838661A (en) * 1988-01-05 1989-06-13 Motorola, Inc. Liquid crystal light emitting display system
US5018837A (en) * 1989-07-03 1991-05-28 Motorola, Inc. Enhanced contrast liquid crystal display device
JPH1184415A (ja) * 1997-09-04 1999-03-26 Sony Corp 反射型液晶表示装置
US6681509B1 (en) 2000-09-06 2004-01-27 France Jean Artistic display

Family Cites Families (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3551026A (en) * 1965-04-26 1970-12-29 Rca Corp Control of optical properties of materials with liquid crystals
DE2221441A1 (de) * 1972-05-02 1973-11-15 Bernt Von Grabe Optoelektronischer zeichengenerator
US3787110A (en) * 1972-06-23 1974-01-22 Bell Telephone Labor Inc Liquid crystal devices
JPS5942287B2 (ja) * 1972-12-19 1984-10-13 松下電器産業株式会社 色相変調表示装置
US3833287A (en) * 1973-03-08 1974-09-03 Bell Telephone Labor Inc Guest-host liquid crystal device
FR2220804B1 (fr) * 1973-03-08 1976-10-08 Western Electric Co
US3949655A (en) * 1973-10-05 1976-04-13 United States Box Corporation Synchronization apparatus for box making machine
JPS50107958A (fr) * 1974-01-31 1975-08-25
US3914022A (en) * 1974-07-02 1975-10-21 Gen Electric Quasi-homeotropic twisted nematic liquid crystal device
DE7426201U (de) * 1974-08-01 1974-11-14 Gebrueder Junghans Gmbh Flüssigkristall-Anzeigeeinrichtung, insbesondere für Kleinuhren
CH589307A5 (fr) * 1975-06-27 1977-06-30 Bbc Brown Boveri & Cie
AT351615B (de) * 1975-12-03 1979-08-10 Siemens Ag Anordnung zur passiven helligkeitsverstaerkung von ein- oder mehrfarbigen anzeigevor- richtungen
US4042294A (en) * 1976-03-17 1977-08-16 Micro Display Systems Inc Illuminated electro-optical display apparatus
DE2706372B2 (de) * 1977-02-15 1978-11-30 Siemens Ag, 1000 Berlin Und 8000 Muenchen Anzeigeanordnung zur Darstellung von hellen Bildern auf dunklem Hintergrund
DE2706355C2 (de) * 1977-02-15 1979-04-05 Siemens Ag, 1000 Berlin Und 8000 Muenchen Anzeige-Anordnung mit einem Lichtventil, insbesondere einer Flfissigkristallzelle

Also Published As

Publication number Publication date
FR2380567B1 (fr) 1982-08-20
DE2706405A1 (de) 1978-08-17
BE863990A (fr) 1978-05-29
CA1106951A (fr) 1981-08-11
CH618833B5 (de) 1981-02-27
US4405210A (en) 1983-09-20
DE2706405B2 (de) 1978-11-30
JPS53101999A (en) 1978-09-05
NL7801661A (nl) 1978-08-17
CH618833GA3 (de) 1980-08-29
SE7801776L (sv) 1978-08-15
GB1585752A (en) 1981-03-11
DE2706405C3 (de) 1985-08-01
IT7820208A0 (it) 1978-02-13
IT1092683B (it) 1985-07-12

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Legal Events

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