GB1337637A - Displaying electrical signals - Google Patents

Displaying electrical signals

Info

Publication number
GB1337637A
GB1337637A GB1686571A GB1686571A GB1337637A GB 1337637 A GB1337637 A GB 1337637A GB 1686571 A GB1686571 A GB 1686571A GB 1686571 A GB1686571 A GB 1686571A GB 1337637 A GB1337637 A GB 1337637A
Authority
GB
United Kingdom
Prior art keywords
electrical signals
displaying electrical
ethoxyphenylazo
division
displaying
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
GB1686571A
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.)
BBC Brown Boveri AG Switzerland
BBC Brown Boveri France SA
Original Assignee
BBC Brown Boveri AG Switzerland
BBC Brown Boveri France 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 BBC Brown Boveri AG Switzerland, BBC Brown Boveri France SA filed Critical BBC Brown Boveri AG Switzerland
Publication of GB1337637A publication Critical patent/GB1337637A/en
Expired legal-status Critical Current

Links

Classifications

    • 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
    • G02F1/133382—Heating or cooling of liquid crystal cells other than for activation, e.g. circuits or arrangements for temperature control, stabilisation or uniform distribution over the cell
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R13/00—Arrangements for displaying electric variables or waveforms
    • G01R13/40—Arrangements for displaying electric variables or waveforms using modulation of a light beam otherwise than by mechanical displacement, e.g. by Kerr effect

Landscapes

  • Physics & Mathematics (AREA)
  • Nonlinear Science (AREA)
  • General Physics & Mathematics (AREA)
  • Mathematical Physics (AREA)
  • Chemical & Material Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Optics & Photonics (AREA)
  • Control Of Indicators Other Than Cathode Ray Tubes (AREA)
  • Liquid Crystal Display Device Control (AREA)

Abstract

1337637 Modulating light BROWN BOVERI & CO Ltd 25 May 1971 [27 May 1970] 16865/71 Heading H4F [Also in Division G1] A voltage display system, see Division G1, may include the liquid crystal p-(.p-ethoxyphenylazo)-phenylheptanoate or enanthic acid-p-(p<SP>1</SP>)-ethoxyphenylazo-phenylester.
GB1686571A 1970-05-27 1971-05-25 Displaying electrical signals Expired GB1337637A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH784070A CH520938A (en) 1970-05-27 1970-05-27 Arrangement for the visual representation of time-varying electrical voltages

Publications (1)

Publication Number Publication Date
GB1337637A true GB1337637A (en) 1973-11-14

Family

ID=4331195

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1686571A Expired GB1337637A (en) 1970-05-27 1971-05-25 Displaying electrical signals

Country Status (6)

Country Link
CA (1) CA944040A (en)
CH (1) CH520938A (en)
DE (1) DE2042901C3 (en)
FR (1) FR2090318B1 (en)
GB (1) GB1337637A (en)
NL (1) NL7107099A (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2198167B1 (en) * 1972-08-29 1976-05-21 Commissariat Energie Atomique
GB1559074A (en) * 1975-11-05 1980-01-16 Nat Res Dev Electonic analogues waveform displays
CH633889A5 (en) * 1978-11-24 1982-12-31 Bbc Brown Boveri & Cie DIGITAL VOLTAGE WITH ELECTRIC OPTICAL DISPLAY OF THE WAVEFORM.

Also Published As

Publication number Publication date
FR2090318A1 (en) 1972-01-14
DE2042901B2 (en) 1977-11-17
FR2090318B1 (en) 1975-07-04
CA944040A (en) 1974-03-19
DE2042901A1 (en) 1971-12-09
NL7107099A (en) 1971-11-30
CH520938A (en) 1972-03-31
DE2042901C3 (en) 1978-10-12

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Legal Events

Date Code Title Description
PS Patent sealed
PCNP Patent ceased through non-payment of renewal fee