HK55180A - Liquid crystal protection circuit - Google Patents

Liquid crystal protection circuit

Info

Publication number
HK55180A
HK55180A HK551/80A HK55180A HK55180A HK 55180 A HK55180 A HK 55180A HK 551/80 A HK551/80 A HK 551/80A HK 55180 A HK55180 A HK 55180A HK 55180 A HK55180 A HK 55180A
Authority
HK
Hong Kong
Prior art keywords
liquid crystal
protection circuit
crystal protection
circuit
liquid
Prior art date
Application number
HK551/80A
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
Publication of HK55180A publication Critical patent/HK55180A/en

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)
HK551/80A 1974-03-27 1980-10-02 Liquid crystal protection circuit HK55180A (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
HK55180A true HK55180A (en) 1980-10-10

Family

ID=23808523

Family Applications (1)

Application Number Title Priority Date Filing Date
HK551/80A HK55180A (en) 1974-03-27 1980-10-02 Liquid crystal protection circuit

Country Status (10)

Country Link
US (1) US3873888A (en)
JP (1) JPS50129241A (en)
CA (1) CA1033480A (en)
CH (2) CH74475A4 (en)
DE (1) DE2501114C3 (en)
FR (1) FR2266207B1 (en)
GB (1) GB1485061A (en)
HK (1) HK55180A (en)
MY (1) MY8100199A (en)
SU (1) SU563931A3 (en)

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 (en) * 1979-09-28 1981-04-02 Eurosil GmbH, 8000 München CIRCUIT ARRANGEMENT FOR CONTROLLING A MULTI-DIGIT LIQUID CRYSTAL DISPLAY
JPS5877391U (en) * 1981-11-20 1983-05-25 トキコ株式会社 liquid crystal display circuit
JPH0693166B2 (en) * 1984-09-05 1994-11-16 株式会社日立製作所 Liquid crystal element
DE3807020A1 (en) * 1988-03-04 1989-09-14 Eurosil Electronic Gmbh Liquid crystal display having clock-controlled disconnection

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 (en) * 1971-10-11 1973-04-19 Rca Corp CONTROL CIRCUIT, IN PARTICULAR FOR A LIQUID CRYSTAL CELL
GB1425828A (en) * 1972-04-24 1976-02-18 Rca Corp Electron beam tube protection circuit

Also Published As

Publication number Publication date
MY8100199A (en) 1981-12-31
CA1033480A (en) 1978-06-20
FR2266207B1 (en) 1978-04-21
JPS50129241A (en) 1975-10-13
FR2266207A1 (en) 1975-10-24
DE2501114B2 (en) 1981-07-02
US3873888A (en) 1975-03-25
CH610713B5 (en) 1979-05-15
DE2501114C3 (en) 1982-02-25
GB1485061A (en) 1977-09-08
SU563931A3 (en) 1977-06-30
DE2501114A1 (en) 1975-10-09
CH74475A4 (en) 1977-01-31

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