IT987357B - Perfezionamenti ai dispositivi di visualizzazione in partico lare a quelli che utilizzano cristalli liquidi - Google Patents

Perfezionamenti ai dispositivi di visualizzazione in partico lare a quelli che utilizzano cristalli liquidi

Info

Publication number
IT987357B
IT987357B IT2385773A IT2385773A IT987357B IT 987357 B IT987357 B IT 987357B IT 2385773 A IT2385773 A IT 2385773A IT 2385773 A IT2385773 A IT 2385773A IT 987357 B IT987357 B IT 987357B
Authority
IT
Italy
Prior art keywords
those
display devices
liquid crystals
crystals
liquid
Prior art date
Application number
IT2385773A
Other languages
English (en)
Italian (it)
Original Assignee
Thomson Csf T Vt Sa
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 Thomson Csf T Vt Sa filed Critical Thomson Csf T Vt Sa
Application granted granted Critical
Publication of IT987357B publication Critical patent/IT987357B/it

Links

Classifications

    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B33/00—Electroluminescent light sources
    • H05B33/12—Light sources with substantially two-dimensional radiating surfaces
    • 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
    • G02F1/1343—Electrodes
    • G02F1/134309—Electrodes characterised by their geometrical arrangement
    • G02F1/134336—Matrix
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
    • G09F9/00—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements
    • G09F9/30—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements in which the desired character or characters are formed by combining individual elements
    • G09F9/302—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements in which the desired character or characters are formed by combining individual elements characterised by the form or geometrical disposition of the individual elements

Landscapes

  • Physics & Mathematics (AREA)
  • Nonlinear Science (AREA)
  • General Physics & Mathematics (AREA)
  • Geometry (AREA)
  • Mathematical Physics (AREA)
  • Chemical & Material Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Optics & Photonics (AREA)
  • Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Devices For Indicating Variable Information By Combining Individual Elements (AREA)
IT2385773A 1972-05-10 1973-05-09 Perfezionamenti ai dispositivi di visualizzazione in partico lare a quelli che utilizzano cristalli liquidi IT987357B (it)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7216760A FR2184188A5 (US08124317-20120228-C00026.png) 1972-05-10 1972-05-10

Publications (1)

Publication Number Publication Date
IT987357B true IT987357B (it) 1975-02-20

Family

ID=9098309

Family Applications (1)

Application Number Title Priority Date Filing Date
IT2385773A IT987357B (it) 1972-05-10 1973-05-09 Perfezionamenti ai dispositivi di visualizzazione in partico lare a quelli che utilizzano cristalli liquidi

Country Status (5)

Country Link
CH (1) CH584953A5 (US08124317-20120228-C00026.png)
DE (1) DE2323059C2 (US08124317-20120228-C00026.png)
FR (1) FR2184188A5 (US08124317-20120228-C00026.png)
GB (1) GB1434121A (US08124317-20120228-C00026.png)
IT (1) IT987357B (US08124317-20120228-C00026.png)

Families Citing this family (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2660634C1 (de) * 1975-05-12 1985-05-09 Hitachi, Ltd., Tokio/Tokyo Fluessigkristall-Matrixanzeige
US4231640A (en) * 1977-07-07 1980-11-04 Sharp Kabushiki Kaisha Matrix type liquid crystal display panel
JPS5917430B2 (ja) * 1977-10-31 1984-04-21 シャープ株式会社 マトリツクス型液晶表示装置
JPS5577790A (en) * 1978-12-08 1980-06-11 Seiko Instr & Electronics Multiplex liquid crystal display unit
JPS5924061Y2 (ja) * 1979-04-27 1984-07-17 シャープ株式会社 マトリツクス型液晶表示装置の電極構造
GB2151832B (en) * 1983-12-16 1987-08-19 Standard Telephones Cables Ltd Electro optic flat panel display
DE3420549C1 (de) * 1984-05-28 1986-01-02 Licentia Patent-Verwaltungs-Gmbh, 6000 Frankfurt Anordnung zur variablen bildlichen Darstellung von Formen und/oder Kurvenverläufen mittels LCD-Kristallen
WO1986006195A1 (en) * 1985-04-16 1986-10-23 Telebeam International Limited Display apparatus
EP0255158A3 (en) * 1986-07-07 1989-09-27 Koninklijke Philips Electronics N.V. Data display device
GB2213305A (en) * 1987-12-04 1989-08-09 Emi Plc Thorn Display device
GB2217088A (en) * 1988-04-05 1989-10-18 English Electric Valve Co Ltd Optical display panel
FR2656144A1 (fr) * 1989-12-18 1991-06-21 Asulab Sa Dispositif electronique d'affichage.
GB2239342A (en) * 1989-12-21 1991-06-26 Yeebo Semiconductor Limited Liquid crystal display
JPH0628887U (ja) * 1992-09-18 1994-04-15 パイオニア株式会社 表示装置
EP1811492A1 (en) * 2006-01-23 2007-07-25 TPO Hong Kong Holding Limited Active matrix display device

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3322485A (en) * 1962-11-09 1967-05-30 Rca Corp Electro-optical elements utilizing an organic nematic compound
US3479646A (en) * 1968-06-10 1969-11-18 Northrop Corp Digitally addressed solid state electroluminescent display device
US3566391A (en) * 1968-09-06 1971-02-23 Hartman Systems Co Inc Multilayer electroluminescent display apparatus having multiple,selectively energizable electrode elements forming composite electrodes of predetermined configuration

Also Published As

Publication number Publication date
FR2184188A5 (US08124317-20120228-C00026.png) 1973-12-21
GB1434121A (en) 1976-05-05
DE2323059C2 (de) 1982-05-13
DE2323059A1 (de) 1973-11-22
CH584953A5 (US08124317-20120228-C00026.png) 1977-02-15

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