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EP0086551A3 - Character display panels and panel devices - Google Patents

Character display panels and panel devices Download PDF

Info

Publication number
EP0086551A3
EP0086551A3 EP83300122A EP83300122A EP0086551A3 EP 0086551 A3 EP0086551 A3 EP 0086551A3 EP 83300122 A EP83300122 A EP 83300122A EP 83300122 A EP83300122 A EP 83300122A EP 0086551 A3 EP0086551 A3 EP 0086551A3
Authority
EP
European Patent Office
Prior art keywords
electrodes
segment
panel
display panels
character display
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.)
Withdrawn
Application number
EP83300122A
Other languages
German (de)
French (fr)
Other versions
EP0086551A2 (en
Inventor
Michael George Clark
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.)
National Research Development Corp UK
Original Assignee
National Research Development Corp UK
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 National Research Development Corp UK filed Critical National Research Development Corp UK
Publication of EP0086551A2 publication Critical patent/EP0086551A2/en
Publication of EP0086551A3 publication Critical patent/EP0086551A3/en
Withdrawn legal-status Critical Current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
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Computer Hardware Design (AREA)
  • General Physics & Mathematics (AREA)
  • Theoretical Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Liquid Crystal (AREA)
  • Liquid Crystal Display Device Control (AREA)
  • Control Of Indicators Other Than Cathode Ray Tubes (AREA)

Abstract

A multi-character multi-segment electrically address­ able display panel. Character segments (a to h) are defined at each of a number of adjacent locations by the overlap of two sets of electrodes (Fig. 6; Fig. 7). The electrodes of one set (Fig. 7) are each associated with a location and a group of one or more segments [(a, b, g); (c, e); (d, f); (h)]. The electrodes of the other set (Fig. 6) extend across each location and are associated with no more than one segment in each segment group [(a); (b, e, f); (c, d, g)]. The panel is addressed using isogonal signals - eg pseudo-random bi­ nary sequence coded signals. The panel medium may be of dyed or undyed cholesteric-to-nematic phase change effect liquid crystal material, of low threshold or wide temperature range liquid crystal material.
EP83300122A 1982-02-01 1983-01-11 Character display panels and panel devices Withdrawn EP0086551A3 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB8202849 1982-02-01
GB8202849 1982-02-01

Publications (2)

Publication Number Publication Date
EP0086551A2 EP0086551A2 (en) 1983-08-24
EP0086551A3 true EP0086551A3 (en) 1987-05-13

Family

ID=10528030

Family Applications (1)

Application Number Title Priority Date Filing Date
EP83300122A Withdrawn EP0086551A3 (en) 1982-02-01 1983-01-11 Character display panels and panel devices

Country Status (2)

Country Link
EP (1) EP0086551A3 (en)
JP (1) JPS58132790A (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AU5638796A (en) * 1995-05-09 1996-11-29 Monsanto Company Conductive font

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2727010A1 (en) * 1976-06-15 1977-12-29 Citizen Watch Co Ltd METHOD OF OPERATING AN ELECTRO-OPTIC DISPLAY DEVICE
EP0014100A2 (en) * 1979-01-26 1980-08-06 National Research Development Corporation Analogue display
US4264963A (en) * 1979-06-08 1981-04-28 Texas Instruments Incorporated Static latches for storing display segment information
GB2065354A (en) * 1979-12-14 1981-06-24 Standard Telephones Cables Ltd Addressing liquid crystal displays

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2727010A1 (en) * 1976-06-15 1977-12-29 Citizen Watch Co Ltd METHOD OF OPERATING AN ELECTRO-OPTIC DISPLAY DEVICE
EP0014100A2 (en) * 1979-01-26 1980-08-06 National Research Development Corporation Analogue display
US4264963A (en) * 1979-06-08 1981-04-28 Texas Instruments Incorporated Static latches for storing display segment information
GB2065354A (en) * 1979-12-14 1981-06-24 Standard Telephones Cables Ltd Addressing liquid crystal displays

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
ELECTRONIC DESIGN, vol. 29, no. 19, September 1981, pages 177-184, Waseca, MN, US; P. BRADSHAW: "Multiplexing makes liquid-crystal displays alphanumeric" *

Also Published As

Publication number Publication date
JPS58132790A (en) 1983-08-08
EP0086551A2 (en) 1983-08-24

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Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

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AK Designated contracting states

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17P Request for examination filed

Effective date: 19840131

PUAL Search report despatched

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18W Application withdrawn

Withdrawal date: 19871010

RIN1 Information on inventor provided before grant (corrected)

Inventor name: CLARK, MICHAEL GEORGE