FR2675295B1 - Dispositif pour l'amelioration de la lisibilite d'un afficheur a cristaux liquides. - Google Patents

Dispositif pour l'amelioration de la lisibilite d'un afficheur a cristaux liquides.

Info

Publication number
FR2675295B1
FR2675295B1 FR9104956A FR9104956A FR2675295B1 FR 2675295 B1 FR2675295 B1 FR 2675295B1 FR 9104956 A FR9104956 A FR 9104956A FR 9104956 A FR9104956 A FR 9104956A FR 2675295 B1 FR2675295 B1 FR 2675295B1
Authority
FR
France
Prior art keywords
readability
improving
liquid crystal
crystal display
display
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.)
Expired - Fee Related
Application number
FR9104956A
Other languages
English (en)
Other versions
FR2675295A1 (fr
Inventor
Philippe Benon
Alain Cognard
Pierre Fagard
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.)
Thales Avionics SAS
Original Assignee
Thales Avionics SAS
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 Thales Avionics SAS filed Critical Thales Avionics SAS
Priority to FR9104956A priority Critical patent/FR2675295B1/fr
Publication of FR2675295A1 publication Critical patent/FR2675295A1/fr
Application granted granted Critical
Publication of FR2675295B1 publication Critical patent/FR2675295B1/fr
Anticipated expiration legal-status Critical
Expired - Fee Related 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
    • G02F1/133504—Diffusing, scattering, diffracting elements

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)
  • Devices For Indicating Variable Information By Combining Individual Elements (AREA)
FR9104956A 1991-04-12 1991-04-12 Dispositif pour l'amelioration de la lisibilite d'un afficheur a cristaux liquides. Expired - Fee Related FR2675295B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR9104956A FR2675295B1 (fr) 1991-04-12 1991-04-12 Dispositif pour l'amelioration de la lisibilite d'un afficheur a cristaux liquides.

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR9104956A FR2675295B1 (fr) 1991-04-12 1991-04-12 Dispositif pour l'amelioration de la lisibilite d'un afficheur a cristaux liquides.

Publications (2)

Publication Number Publication Date
FR2675295A1 FR2675295A1 (fr) 1992-10-16
FR2675295B1 true FR2675295B1 (fr) 1994-03-11

Family

ID=9412133

Family Applications (1)

Application Number Title Priority Date Filing Date
FR9104956A Expired - Fee Related FR2675295B1 (fr) 1991-04-12 1991-04-12 Dispositif pour l'amelioration de la lisibilite d'un afficheur a cristaux liquides.

Country Status (1)

Country Link
FR (1) FR2675295B1 (fr)

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3887791A (en) * 1973-11-08 1975-06-03 Texas Instruments Inc Prismatic display window for a calculator
CH607120A5 (fr) * 1976-04-29 1978-11-30 Bbc Brown Boveri & Cie
CH600470A5 (fr) * 1976-11-09 1978-06-15 Bbc Brown Boveri & Cie
JPS57122981U (fr) * 1981-01-27 1982-07-31
FR2652434A1 (fr) * 1989-09-22 1991-03-29 Sextant Avionique Procede et dispositif d'optimisation du contraste et de l'angle de vue d'un afficheur a cristaux liquides.

Also Published As

Publication number Publication date
FR2675295A1 (fr) 1992-10-16

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Legal Events

Date Code Title Description
ST Notification of lapse