GB1402086A - Light emissive diode arrays - Google Patents

Light emissive diode arrays

Info

Publication number
GB1402086A
GB1402086A GB1253774A GB1253774A GB1402086A GB 1402086 A GB1402086 A GB 1402086A GB 1253774 A GB1253774 A GB 1253774A GB 1253774 A GB1253774 A GB 1253774A GB 1402086 A GB1402086 A GB 1402086A
Authority
GB
United Kingdom
Prior art keywords
diode
individual
diodes
light emissive
conductors
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
GB1253774A
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 GB1253774A priority Critical patent/GB1402086A/en
Priority to DE19752511678 priority patent/DE2511678A1/en
Publication of GB1402086A publication Critical patent/GB1402086A/en
Expired 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
    • G09G3/20—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
    • G09G3/22—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources
    • G09G3/30—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources using electroluminescent panels
    • G09G3/32—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources using electroluminescent panels semiconductive, e.g. using light-emitting diodes [LED]
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
    • H01L27/00—Devices consisting of a plurality of semiconductor or other solid-state components formed in or on a common substrate

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Computer Hardware Design (AREA)
  • General Physics & Mathematics (AREA)
  • Power Engineering (AREA)
  • Theoretical Computer Science (AREA)
  • Condensed Matter Physics & Semiconductors (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Electroluminescent Light Sources (AREA)
  • Led Devices (AREA)
  • Control Of Indicators Other Than Cathode Ray Tubes (AREA)
  • Electronic Switches (AREA)

Abstract

1402086 Semi-conductor devices STANDARD TELEPHONES & CABLES Ltd 21 March 1974 12537/74 Heading H1K [Also in Division G4] An array of n x m light emissive diodes, or light emissive diode sets, has a two co-ordinate addressing system having first and second sets of n and m conductors respectively, wherein one terminal connection of each diode, or diode set, is connected via an individual one of a first set of n x m identical resistors to an individual one of the first set of n conductors, and is connected via an individual one of a second set of n x m identical resistors to an individual one of the second set of m conductors, the connections being arranged such that each diode, or diode set, is ascribed a unique co-ordinate pair, and wherein the other terminal connections of the diodes, or diode sets, are commoned. Fig. 1 shows an embodiment with a linear array of GaAsP diodes 1-25. In the monolithic embodiment of Fig. 2, p-type regions 40 are diffused into an n-type GaAsP chip. Aluminium column and row conductor tracks 42, 43 (insulated at the cross-overs) and nickel-chrome alloy thin film resistor patterns 41 are deposited. The resistor patterns 41 terminate in pads 44 which make connection with the conductor tracks 42, 43, and have centre taps 46 connected to the P- type regions 40.
GB1253774A 1974-03-21 1974-03-21 Light emissive diode arrays Expired GB1402086A (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
GB1253774A GB1402086A (en) 1974-03-21 1974-03-21 Light emissive diode arrays
DE19752511678 DE2511678A1 (en) 1974-03-21 1975-03-18 ARRANGEMENT WITH M X N LIGHT EMITTING DIODES AND A TWO COORDINATE CONTROL NETWORK

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1253774A GB1402086A (en) 1974-03-21 1974-03-21 Light emissive diode arrays

Publications (1)

Publication Number Publication Date
GB1402086A true GB1402086A (en) 1975-08-06

Family

ID=10006457

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1253774A Expired GB1402086A (en) 1974-03-21 1974-03-21 Light emissive diode arrays

Country Status (2)

Country Link
DE (1) DE2511678A1 (en)
GB (1) GB1402086A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6403403B1 (en) * 2000-09-12 2002-06-11 The Aerospace Corporation Diode isolated thin film fuel cell array addressing method

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3012995C2 (en) * 1980-04-03 1982-08-26 Licentia Patent-Verwaltungs-Gmbh, 6000 Frankfurt Display device with light-emitting diodes arranged like a matrix

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6403403B1 (en) * 2000-09-12 2002-06-11 The Aerospace Corporation Diode isolated thin film fuel cell array addressing method

Also Published As

Publication number Publication date
DE2511678A1 (en) 1975-10-02

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Legal Events

Date Code Title Description
PS Patent sealed
435 Patent endorsed 'licences of right' on the date specified (sect. 35/1949)
PCNP Patent ceased through non-payment of renewal fee