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GB1144871A - Improvements in or relating to display devices - Google Patents

Improvements in or relating to display devices

Info

Publication number
GB1144871A
GB1144871A GB8161/66A GB816166A GB1144871A GB 1144871 A GB1144871 A GB 1144871A GB 8161/66 A GB8161/66 A GB 8161/66A GB 816166 A GB816166 A GB 816166A GB 1144871 A GB1144871 A GB 1144871A
Authority
GB
United Kingdom
Prior art keywords
monogrammic
feb
display devices
elements
light polarizing
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
GB8161/66A
Inventor
Cyril Ettienne Bloch
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.)
STC PLC
Original Assignee
Standard Telephone and Cables PLC
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 Standard Telephone and Cables PLC filed Critical Standard Telephone and Cables PLC
Priority to GB8161/66A priority Critical patent/GB1144871A/en
Publication of GB1144871A publication Critical patent/GB1144871A/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
    • G09F9/00—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements
    • G09F9/30—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements in which the desired character or characters are formed by combining individual elements
    • 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 
    • G02F1/03—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 ceramics or electro-optical crystals, e.g. exhibiting Pockels effect or Kerr effect
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
    • G09F9/00—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements
    • G09F9/30—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements in which the desired character or characters are formed by combining individual elements
    • G09F9/302—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements in which the desired character or characters are formed by combining individual elements characterised by the form or geometrical disposition of the individual elements
    • 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

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • General Physics & Mathematics (AREA)
  • Theoretical Computer Science (AREA)
  • Nonlinear Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Ceramic Engineering (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Optics & Photonics (AREA)
  • Computer Hardware Design (AREA)
  • Devices For Indicating Variable Information By Combining Individual Elements (AREA)

Abstract

1,144,871. Display devices. STANDARD TELEPHONES & CABLES Ltd. 17 Feb., 1967 [24 Feb., 1966], No. 8161/66. Heading G5C. A display device, suitable for displaying monogrammic symbols, comprises two light polarizing means 2, 3 (Fig. 1, not shown) having their planes of transmission at right angles to each other, and positioned between them a further light polarizing means 4 which responds to an applied electromagnetic or electrostatic field by altering the angle of polarization of light passing through it. Means 4 suitably consists of a matrix of elements from which several may be selected at any one time to produce the desired monogrammic symbol. Such elements, which are desirably mounted on electrically conductive glass, may consist of Z-cut crystals of ammonium or potassium dihydrogen phosphate, or gadolinium or yttrium iron garnet; of these four materials, the first three are responsive to electrostatic and the last two to electromagnetic fields.
GB8161/66A 1966-02-24 1966-02-24 Improvements in or relating to display devices Expired GB1144871A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB8161/66A GB1144871A (en) 1966-02-24 1966-02-24 Improvements in or relating to display devices

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB8161/66A GB1144871A (en) 1966-02-24 1966-02-24 Improvements in or relating to display devices

Publications (1)

Publication Number Publication Date
GB1144871A true GB1144871A (en) 1969-03-12

Family

ID=9846936

Family Applications (1)

Application Number Title Priority Date Filing Date
GB8161/66A Expired GB1144871A (en) 1966-02-24 1966-02-24 Improvements in or relating to display devices

Country Status (1)

Country Link
GB (1) GB1144871A (en)

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