IT1134883B - Dispositivo indicatore a cristallo liquido - Google Patents

Dispositivo indicatore a cristallo liquido

Info

Publication number
IT1134883B
IT1134883B IT26912/80A IT2691280A IT1134883B IT 1134883 B IT1134883 B IT 1134883B IT 26912/80 A IT26912/80 A IT 26912/80A IT 2691280 A IT2691280 A IT 2691280A IT 1134883 B IT1134883 B IT 1134883B
Authority
IT
Italy
Prior art keywords
liquid crystal
crystal indicator
indicator device
liquid
indicator
Prior art date
Application number
IT26912/80A
Other languages
English (en)
Italian (it)
Other versions
IT8026912A0 (it
Inventor
Aoki Shigeo
Isogami Shuzo
Hosoda Motomi
Ukai Yasuhiro
Nagayoshi Tatsuo
Original Assignee
Hosiden Electronics Co
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
Priority claimed from JP16801479A external-priority patent/JPS5689721A/ja
Priority claimed from JP16801579A external-priority patent/JPS5689790A/ja
Application filed by Hosiden Electronics Co filed Critical Hosiden Electronics Co
Publication of IT8026912A0 publication Critical patent/IT8026912A0/it
Application granted granted Critical
Publication of IT1134883B publication Critical patent/IT1134883B/it

Links

Classifications

    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
    • G09G3/04—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of a single character by selection from a plurality of characters, or by composing the character by combination of individual elements, e.g. segments using a combination of such display devices for composing words, rows or the like, in a frame with fixed character positions
    • G09G3/16—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of a single character by selection from a plurality of characters, or by composing the character by combination of individual elements, e.g. segments using a combination of such display devices for composing words, rows or the like, in a frame with fixed character positions by control of light from an independent source
    • G09G3/18—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of a single character by selection from a plurality of characters, or by composing the character by combination of individual elements, e.g. segments using a combination of such display devices for composing words, rows or the like, in a frame with fixed character positions by control of light from an independent source using liquid crystals
    • 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
    • G02F1/1347—Arrangement of liquid crystal layers or cells in which the final condition of one light beam is achieved by the addition of the effects of two or more layers or cells

Landscapes

  • Physics & Mathematics (AREA)
  • Chemical & Material Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Engineering & Computer Science (AREA)
  • General Physics & Mathematics (AREA)
  • Nonlinear Science (AREA)
  • Computer Hardware Design (AREA)
  • Theoretical Computer Science (AREA)
  • Mathematical Physics (AREA)
  • Optics & Photonics (AREA)
  • Liquid Crystal (AREA)
  • Liquid Crystal Display Device Control (AREA)
IT26912/80A 1979-12-24 1980-12-23 Dispositivo indicatore a cristallo liquido IT1134883B (it)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP16801479A JPS5689721A (en) 1979-12-24 1979-12-24 Liquid crystal display device
JP16801579A JPS5689790A (en) 1979-12-24 1979-12-24 Channel display unit

Publications (2)

Publication Number Publication Date
IT8026912A0 IT8026912A0 (it) 1980-12-23
IT1134883B true IT1134883B (it) 1986-08-20

Family

ID=26491875

Family Applications (1)

Application Number Title Priority Date Filing Date
IT26912/80A IT1134883B (it) 1979-12-24 1980-12-23 Dispositivo indicatore a cristallo liquido

Country Status (4)

Country Link
DE (1) DE3047146A1 (ja)
FR (1) FR2472794A1 (ja)
GB (1) GB2067813B (ja)
IT (1) IT1134883B (ja)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2597641B1 (fr) * 1986-04-22 1989-12-08 Thomson Csf Dispositif de modulation de la lumiere d'eclairement d'un ecran d'affichage electro-optique
JPH07104506B2 (ja) * 1989-03-14 1995-11-13 スタンレー電気株式会社 強誘電性液晶パネル
SE0000495D0 (sv) * 2000-02-16 2000-02-16 Torsten Lundberg Anordning för bildskärm

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2150001B2 (de) * 1971-10-07 1976-11-04 Bosch-Siemens Hausgeräte GmbH, 7000 Stuttgart Vorrichtung zur anzeige ds arbeitsprogrammes sowie des betriebszustandes von haushaltsmaschinen und -geraeten, insbesondere wasch- oder geschirrspuelmaschinen
DE2150621A1 (de) * 1971-10-11 1973-04-19 Rca Corp Steuerschaltung, insbesondere fuer eine fluessigkristallzelle
US4097128A (en) * 1975-04-24 1978-06-27 Tokyo Shibaura Electric Co., Ltd. Liquid crystal color display devices
JPS53101296A (en) * 1977-02-16 1978-09-04 Seiko Epson Corp Display unit

Also Published As

Publication number Publication date
GB2067813B (en) 1983-10-19
FR2472794A1 (fr) 1981-07-03
IT8026912A0 (it) 1980-12-23
DE3047146C2 (ja) 1990-03-29
GB2067813A (en) 1981-07-30
DE3047146A1 (de) 1981-08-27
FR2472794B1 (ja) 1985-01-25

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Legal Events

Date Code Title Description
TA Fee payment date (situation as of event date), data collected since 19931001

Effective date: 19951218