FR2580105A1 - Display cell with nematic liquid crystals of the reflective type with electrically-controlled birefringence making it possible to improve the illumination of the display - Google Patents

Display cell with nematic liquid crystals of the reflective type with electrically-controlled birefringence making it possible to improve the illumination of the display Download PDF

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Publication number
FR2580105A1
FR2580105A1 FR8505145A FR8505145A FR2580105A1 FR 2580105 A1 FR2580105 A1 FR 2580105A1 FR 8505145 A FR8505145 A FR 8505145A FR 8505145 A FR8505145 A FR 8505145A FR 2580105 A1 FR2580105 A1 FR 2580105A1
Authority
FR
France
Prior art keywords
liquid crystal
cell
polarizer
display
delay
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
FR8505145A
Other languages
English (en)
French (fr)
Other versions
FR2580105B1 (OSRAM
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.)
Commissariat a lEnergie Atomique et aux Energies Alternatives CEA
Original Assignee
Commissariat a lEnergie Atomique CEA
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 Commissariat a lEnergie Atomique CEA filed Critical Commissariat a lEnergie Atomique CEA
Priority to FR8505145A priority Critical patent/FR2580105A1/fr
Publication of FR2580105A1 publication Critical patent/FR2580105A1/fr
Application granted granted Critical
Publication of FR2580105B1 publication Critical patent/FR2580105B1/fr
Granted legal-status Critical Current

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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
    • G02F1/133528—Polarisers
    • 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
    • G02F1/13363—Birefringent elements, e.g. for optical compensation
    • 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
    • G02F1/133528—Polarisers
    • G02F1/133531—Polarisers characterised by the arrangement of polariser or analyser axes
    • 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
    • G02F1/139—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 orientation effects in which the liquid crystal remains transparent
    • G02F1/1393—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 orientation effects in which the liquid crystal remains transparent the birefringence of the liquid crystal being electrically controlled, e.g. ECB-, DAP-, HAN-, PI-LC cells
    • 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
    • G02F2413/00—Indexing scheme related to G02F1/13363, i.e. to birefringent elements, e.g. for optical compensation, characterised by the number, position, orientation or value of the compensation plates
    • G02F2413/02—Number of plates being 2

Landscapes

  • Physics & Mathematics (AREA)
  • Nonlinear Science (AREA)
  • Mathematical Physics (AREA)
  • Chemical & Material Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Liquid Crystal (AREA)
FR8505145A 1985-04-04 1985-04-04 Display cell with nematic liquid crystals of the reflective type with electrically-controlled birefringence making it possible to improve the illumination of the display Granted FR2580105A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR8505145A FR2580105A1 (en) 1985-04-04 1985-04-04 Display cell with nematic liquid crystals of the reflective type with electrically-controlled birefringence making it possible to improve the illumination of the display

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR8505145A FR2580105A1 (en) 1985-04-04 1985-04-04 Display cell with nematic liquid crystals of the reflective type with electrically-controlled birefringence making it possible to improve the illumination of the display

Publications (2)

Publication Number Publication Date
FR2580105A1 true FR2580105A1 (en) 1986-10-10
FR2580105B1 FR2580105B1 (OSRAM) 1988-05-27

Family

ID=9317951

Family Applications (1)

Application Number Title Priority Date Filing Date
FR8505145A Granted FR2580105A1 (en) 1985-04-04 1985-04-04 Display cell with nematic liquid crystals of the reflective type with electrically-controlled birefringence making it possible to improve the illumination of the display

Country Status (1)

Country Link
FR (1) FR2580105A1 (OSRAM)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5212819A (en) * 1990-04-09 1993-05-18 Seiko Epson Corporation Liquid crystal display device with particular angle between optical axis of optically anisotropic material and observation direction
US5303075A (en) * 1990-04-09 1994-04-12 Seiko Epson Corporation Liquid crystal display with phase difference plate having particular .DELTA.Δnxd at 45° angle to surface
US7084939B2 (en) 2002-10-16 2006-08-01 Nitto Denko Corporation Normally white, supertwist nematic liquid crystal display of reflective type

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2177352A5 (en) * 1972-03-20 1973-11-02 Kalle Ag Liquid crystal display element - using nematic liquid crystal with circular polarizer
US3924932A (en) * 1974-08-09 1975-12-09 Omron Corp Of America Liquid crystal display utilizing reflected light
US3960438A (en) * 1972-12-01 1976-06-01 Honeywell Inc. Reflective displays
EP0056843A2 (de) * 1981-01-27 1982-08-04 Siemens Aktiengesellschaft Passive elektrooptische Anzeigevorrichtung
WO1984004403A1 (fr) * 1983-04-22 1984-11-08 Bosch Gmbh Robert Dispositif de reduction de la transmission residuelle pour affichages a cristaux liquides

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2177352A5 (en) * 1972-03-20 1973-11-02 Kalle Ag Liquid crystal display element - using nematic liquid crystal with circular polarizer
US3960438A (en) * 1972-12-01 1976-06-01 Honeywell Inc. Reflective displays
US3924932A (en) * 1974-08-09 1975-12-09 Omron Corp Of America Liquid crystal display utilizing reflected light
EP0056843A2 (de) * 1981-01-27 1982-08-04 Siemens Aktiengesellschaft Passive elektrooptische Anzeigevorrichtung
WO1984004403A1 (fr) * 1983-04-22 1984-11-08 Bosch Gmbh Robert Dispositif de reduction de la transmission residuelle pour affichages a cristaux liquides

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5212819A (en) * 1990-04-09 1993-05-18 Seiko Epson Corporation Liquid crystal display device with particular angle between optical axis of optically anisotropic material and observation direction
US5303075A (en) * 1990-04-09 1994-04-12 Seiko Epson Corporation Liquid crystal display with phase difference plate having particular .DELTA.Δnxd at 45° angle to surface
US5426524A (en) * 1990-04-09 1995-06-20 Seiko Epson Corporation Liquid crystal display with phase difference plate having particular .DELTA.Δnxd at 45° angle to surface
US5696567A (en) * 1990-04-09 1997-12-09 Seiko Epson Corporation Liquid crystal display device with phase difference plate having particular Δnxd perpendicular to surface over Δnxd at 45° angle to surface
US7084939B2 (en) 2002-10-16 2006-08-01 Nitto Denko Corporation Normally white, supertwist nematic liquid crystal display of reflective type

Also Published As

Publication number Publication date
FR2580105B1 (OSRAM) 1988-05-27

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