FR2139351A5 - - Google Patents

Info

Publication number
FR2139351A5
FR2139351A5 FR7216434A FR7216434A FR2139351A5 FR 2139351 A5 FR2139351 A5 FR 2139351A5 FR 7216434 A FR7216434 A FR 7216434A FR 7216434 A FR7216434 A FR 7216434A FR 2139351 A5 FR2139351 A5 FR 2139351A5
Authority
FR
France
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
Application number
FR7216434A
Other languages
French (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.)
Cambridge Consultants Ltd
Original Assignee
Cambridge Consultants Ltd
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 Cambridge Consultants Ltd filed Critical Cambridge Consultants Ltd
Application granted granted Critical
Publication of FR2139351A5 publication Critical patent/FR2139351A5/fr
Expired legal-status Critical Current

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
    • G04—HOROLOGY
    • G04G—ELECTRONIC TIME-PIECES
    • G04G9/00—Visual time or date indication means
    • G04G9/0023—Visual time or date indication means by light valves in general
    • G04G9/0029—Details
    • G04G9/0035—Details constructional
    • G—PHYSICS
    • G04—HOROLOGY
    • G04G—ELECTRONIC TIME-PIECES
    • G04G9/00—Visual time or date indication means
    • G04G9/08—Visual time or date indication means by building-up characters using a combination of indicating elements, e.g. by using multiplexing techniques
    • G04G9/12—Visual time or date indication means by building-up characters using a combination of indicating elements, e.g. by using multiplexing techniques using light valves, e.g. liquid crystals
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03K—PULSE TECHNIQUE
    • H03K17/00—Electronic switching or gating, i.e. not by contact-making and –breaking
    • H03K17/51—Electronic switching or gating, i.e. not by contact-making and –breaking characterised by the components used
    • H03K17/56—Electronic switching or gating, i.e. not by contact-making and –breaking characterised by the components used by the use, as active elements, of semiconductor devices
    • H03K17/60—Electronic switching or gating, i.e. not by contact-making and –breaking characterised by the components used by the use, as active elements, of semiconductor devices the devices being bipolar transistors
    • H03K17/66—Switching arrangements for passing the current in either direction at will; Switching arrangements for reversing the current at will
    • H03K17/665—Switching arrangements for passing the current in either direction at will; Switching arrangements for reversing the current at will connected to one load terminal only
    • H03K17/666—Switching arrangements for passing the current in either direction at will; Switching arrangements for reversing the current at will connected to one load terminal only the output circuit comprising more than one controlled bipolar transistor

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Chemical & Material Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Engineering & Computer Science (AREA)
  • Computer Hardware Design (AREA)
  • Theoretical Computer Science (AREA)
  • Electric Clocks (AREA)
  • Liquid Crystal Display Device Control (AREA)
  • Electronic Switches (AREA)
FR7216434A 1971-05-07 1972-05-08 Expired FR2139351A5 (enrdf_load_stackoverflow)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1369271A GB1398237A (en) 1971-05-07 1971-05-07 Liquid crystal display means

Publications (1)

Publication Number Publication Date
FR2139351A5 true FR2139351A5 (enrdf_load_stackoverflow) 1973-01-05

Family

ID=10027663

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7216434A Expired FR2139351A5 (enrdf_load_stackoverflow) 1971-05-07 1972-05-08

Country Status (7)

Country Link
JP (1) JPS567983U (enrdf_load_stackoverflow)
BE (1) BE783078A (enrdf_load_stackoverflow)
CH (2) CH582383B5 (enrdf_load_stackoverflow)
DE (1) DE2221863C2 (enrdf_load_stackoverflow)
FR (1) FR2139351A5 (enrdf_load_stackoverflow)
GB (1) GB1398237A (enrdf_load_stackoverflow)
NL (1) NL7206022A (enrdf_load_stackoverflow)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2317720A1 (fr) * 1975-06-27 1977-02-04 Bbc Brown Boveri & Cie Dispositif d'affichage a optique electronique
FR2509930A1 (fr) * 1981-07-16 1983-01-21 Plessey Overseas Circuit de pilotage par impulsions pour convertisseurs et amplificateurs de puissance

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2040625A (en) * 1979-01-23 1980-08-28 Nat Res Dev Serial data logic circuit
JPS5677891A (en) * 1979-11-29 1981-06-26 Tokyo Shibaura Electric Co Displayyunit drive circuit
KR970000100B1 (ko) * 1993-12-02 1997-01-04 엘지전자 주식회사 냉장고의 야채실도어 개폐장치
CN114488592A (zh) * 2020-11-11 2022-05-13 昆山科技大学 液晶玻璃板调变电路

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2821639A (en) * 1954-10-28 1958-01-28 Westinghouse Electric Corp Transistor switching circuits
DE1098034B (de) * 1959-04-13 1961-01-26 Siemens Ag Schaltungsanordnung zum Umschalten der Stromrichtung in einem Verbraucher
US3551689A (en) * 1969-03-21 1970-12-29 Rca Corp Alternating current driven load circuit
US3576364A (en) * 1969-05-20 1971-04-27 Rca Corp Color advertising display employing liquid crystal

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2317720A1 (fr) * 1975-06-27 1977-02-04 Bbc Brown Boveri & Cie Dispositif d'affichage a optique electronique
FR2509930A1 (fr) * 1981-07-16 1983-01-21 Plessey Overseas Circuit de pilotage par impulsions pour convertisseurs et amplificateurs de puissance

Also Published As

Publication number Publication date
NL7206022A (enrdf_load_stackoverflow) 1972-11-09
CH582383B5 (enrdf_load_stackoverflow) 1976-11-30
DE2221863C2 (de) 1984-05-10
GB1398237A (en) 1975-06-18
CH665472A4 (enrdf_load_stackoverflow) 1974-02-28
JPS567983U (enrdf_load_stackoverflow) 1981-01-23
DE2221863A1 (de) 1972-11-30
BE783078A (fr) 1972-09-01

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Legal Events

Date Code Title Description
ST Notification of lapse