CA1033480A - Liquid crystal protection circuit - Google Patents

Liquid crystal protection circuit

Info

Publication number
CA1033480A
CA1033480A CA217,856A CA217856A CA1033480A CA 1033480 A CA1033480 A CA 1033480A CA 217856 A CA217856 A CA 217856A CA 1033480 A CA1033480 A CA 1033480A
Authority
CA
Canada
Prior art keywords
liquid crystal
protection circuit
crystal protection
circuit
liquid
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
Application number
CA217,856A
Other languages
English (en)
French (fr)
Inventor
George D. Hanchett
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.)
RCA Corp
Original Assignee
RCA Corp
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 RCA Corp filed Critical RCA Corp
Application granted granted Critical
Publication of CA1033480A publication Critical patent/CA1033480A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
    • H02H3/00—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition with or without subsequent reconnection ; integrated protection
    • H02H3/50—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition with or without subsequent reconnection ; integrated protection responsive to the appearance of abnormal wave forms, e.g. ac in dc installations
    • 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
    • G02F1/13306—Circuit arrangements or driving methods for the control of single liquid crystal cells
    • 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
    • G04G9/0047—Details electrical, e.g. selection or application of the operating voltage

Landscapes

  • Physics & Mathematics (AREA)
  • Nonlinear Science (AREA)
  • General Physics & Mathematics (AREA)
  • Mathematical Physics (AREA)
  • Chemical & Material Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Optics & Photonics (AREA)
  • Liquid Crystal Display Device Control (AREA)
  • Oscillators With Electromechanical Resonators (AREA)
  • Electric Clocks (AREA)
  • Liquid Crystal (AREA)
CA217,856A 1974-03-27 1975-01-14 Liquid crystal protection circuit Expired CA1033480A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US455372A US3873888A (en) 1974-03-27 1974-03-27 Liquid crystal protection circuit

Publications (1)

Publication Number Publication Date
CA1033480A true CA1033480A (en) 1978-06-20

Family

ID=23808523

Family Applications (1)

Application Number Title Priority Date Filing Date
CA217,856A Expired CA1033480A (en) 1974-03-27 1975-01-14 Liquid crystal protection circuit

Country Status (10)

Country Link
US (1) US3873888A (ru)
JP (1) JPS50129241A (ru)
CA (1) CA1033480A (ru)
CH (2) CH610713B5 (ru)
DE (1) DE2501114C3 (ru)
FR (1) FR2266207B1 (ru)
GB (1) GB1485061A (ru)
HK (1) HK55180A (ru)
MY (1) MY8100199A (ru)
SU (1) SU563931A3 (ru)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS51135499A (en) * 1975-05-20 1976-11-24 Seiko Epson Corp Liquid crystal display unit
DE2939553A1 (de) * 1979-09-28 1981-04-02 Eurosil GmbH, 8000 München Schaltungsanordnung zur steuerung einer mehrstelligen fluessigkristallanzeige
JPS5877391U (ja) * 1981-11-20 1983-05-25 トキコ株式会社 液晶表示回路
JPH0693166B2 (ja) * 1984-09-05 1994-11-16 株式会社日立製作所 液晶素子
DE3807020A1 (de) * 1988-03-04 1989-09-14 Eurosil Electronic Gmbh Fluessigkristallanzeige mit taktgesteuerter abschaltung

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB505490A (en) * 1937-10-11 1939-05-11 Eric Lawrence Casling White Improvements in or relating to cathode ray tube television and like apparatus
US3588608A (en) * 1969-02-24 1971-06-28 Sun Electric Corp Circuit protection apparatus for disabling high voltage to a cathode-ray tube
DE2150621A1 (de) * 1971-10-11 1973-04-19 Rca Corp Steuerschaltung, insbesondere fuer eine fluessigkristallzelle
GB1425828A (en) * 1972-04-24 1976-02-18 Rca Corp Electron beam tube protection circuit

Also Published As

Publication number Publication date
SU563931A3 (ru) 1977-06-30
US3873888A (en) 1975-03-25
HK55180A (en) 1980-10-10
FR2266207A1 (ru) 1975-10-24
FR2266207B1 (ru) 1978-04-21
MY8100199A (en) 1981-12-31
CH610713B5 (ru) 1979-05-15
DE2501114C3 (de) 1982-02-25
JPS50129241A (ru) 1975-10-13
CH74475A4 (ru) 1977-01-31
DE2501114A1 (de) 1975-10-09
DE2501114B2 (de) 1981-07-02
GB1485061A (en) 1977-09-08

Similar Documents

Publication Publication Date Title
AU507453B2 (en) Cyano-biphenyl liquid crystal materials
AU498611B2 (en) Integrated circuit
AU476940B2 (en) Integrated circuit
JPS5285085A (en) Doped liquid crystal composites
CA1006228A (en) Thermocouple-failure warning circuit
GB1503686A (en) Liquid-crystal display
CA1033480A (en) Liquid crystal protection circuit
CA1004733A (en) Bridge circuit
GB1506570A (en) Liquid crystal devices
AU502009B2 (en) Crystal filter
GB1545195A (en) Electrochromic display devices
GB1539971A (en) Liquid crystal display devices
CA1033004A (en) Parallel transistor protection circuit
CA1029821A (en) Oscillator circuit
CA1017041A (en) Coincidence addressed liquid crystal devices
GB1557581A (en) Liquid crystal display devices
CA1013858A (en) Compass display circuit
CA1028843A (en) Liquid crystal compositions and devices
GB1556311A (en) Liquid crystal composition
AU499813B2 (en) Liquid dyestuffs
AU7742075A (en) Liquid crystal device
JPS51146257A (en) Liquid crystal polarizer
AU482396B2 (en) Coincidence addressed liquid crystal devices
AU490903B2 (en) Liquid application-device
AU8249075A (en) Liquid application-device