GB1232405A – – Google Patents
GB1232405A – – Google Patents
Info
Publication number
GB1232405A
GB1232405A
GB1232405DA
GB1232405A
GB 1232405 A
GB1232405 A
GB 1232405A
GB 1232405D A
GB1232405D A
GB 1232405DA
GB 1232405 A
GB1232405 A
GB 1232405A
Authority
GB
United Kingdom
Prior art keywords
switch
dot
dots
array
conductor
Prior art date
1968-02-16
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
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.)
1968-02-16
Filing date
1968-08-29
Publication date
1971-05-19
1968-08-29
Application filed
filed
Critical
1971-05-19
Publication of GB1232405A
publication
Critical
patent/GB1232405A/en
Status
Expired
legal-status
Critical
Current
Links
Espacenet
Global Dossier
Discuss
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]
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
G09F9/33—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 being semiconductor devices, e.g. diodes
H—ELECTRICITY
H04—ELECTRIC COMMUNICATION TECHNIQUE
H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
H04N3/00—Scanning details of television systems; Combination thereof with generation of supply voltages
H04N3/10—Scanning details of television systems; Combination thereof with generation of supply voltages by means not exclusively optical-mechanical
H04N3/14—Scanning details of television systems; Combination thereof with generation of supply voltages by means not exclusively optical-mechanical by means of electrically scanned solid-state devices
Abstract
1,232,405. Electroluminescence. GERBER SCIENTIFIC INSTRUMENT CO. 29 Aug. 1968 [16 Feb., 1968], No. 41226/68. Heading C4S. [Also in Division H1] A display matrix (monochrome or colour) comprises an array of 4-layer semi-conductor switches, each of which may be rendered conductive by the application of pulses simultaneously to the two central layers thereof, and an array of light-emitting dots 30, each dot 30 being associated with and activated by a corresponding switch. The central layers of the switches are constituted by two mutually perpendicular superimposed sets of semiconductor strips 22, 24 respectively aligned with the rows and columns of the array of dots 30, so that any particular dot may be activated by the application of suitable pulses simultaneously to the appropriate strips 22, 24. The semi-conductor switch array may be formed as a series of epitaxial layers and the light-emitting dots 30 may comprise two layer diodes. One of the layers of each dot 30 may be constituted by the adjacent end of the corresponding switch. Insulating material is provided between the elements of the matrix. As shown, a transparent conductor 32 is provided below the light-emitting dots 30, and above each switch is provided a resistive dot 38 and a common conductor 40, each dot 38 serving as a current limiter for the corresponding switch and lightemitting device. The resistive dots 38 may be omitted or replaced by an array of dielectric dots, e.g. of barium titanate, providing a capacitance in series with each switch whereby the current through each switch will drop below the value required to sustain conduction a predetermined time interval after the switch has been rendered conductive. In a modified arrangement of this type, a conductive dot (68), Fig. 7 (not shown), is provided between each switch and the corresponding dielectric dot (74), the dots (68) being connected through resistive material (70) to a common conductor (72).
GB1232405D
1968-02-16
1968-08-29
Expired
GB1232405A
(en)
Applications Claiming Priority (1)
Application Number
Priority Date
Filing Date
Title
US70610068A
1968-02-16
1968-02-16
Publications (1)
Publication Number
Publication Date
GB1232405A
true
GB1232405A
(en)
1971-05-19
Family
ID=24836220
Family Applications (1)
Application Number
Title
Priority Date
Filing Date
GB1232405D
Expired
GB1232405A
(en)
1968-02-16
1968-08-29
Country Status (4)
Country
Link
US
(1)
US3461344A
(en)
JP
(1)
JPS494800B1
(en)
DE
(1)
DE1814003C3
(en)
GB
(1)
GB1232405A
(en)
Families Citing this family (5)
* Cited by examiner, † Cited by third party
Publication number
Priority date
Publication date
Assignee
Title
US3673572A
(en)
*
1969-11-24
1972-06-27
Xerox Corp
Electroluminescent device
US6492966B1
(en)
*
1982-09-17
2002-12-10
Alton O. Christensen
Integrally fabricated gated pixel elements and control circuitry for flat-panel displays
US4506193A
(en)
*
1982-09-30
1985-03-19
Gte Products Corporation
Thin film electroluminescent display
DE4311388B4
(en)
*
1993-04-07
2005-07-28
Forschungszentrum Jülich GmbH
Layer system with electrically activatable layer
US6873098B2
(en)
*
1998-12-22
2005-03-29
Alton O. Christensen, Sr.
Electroluminescent devices and displays with integrally fabricated address and logic devices fabricated by printing or weaving
Family Cites Families (4)
* Cited by examiner, † Cited by third party
Publication number
Priority date
Publication date
Assignee
Title
US3258644A
(en)
*
1966-06-28
Light emitting display panels
NL279202A
(en)
*
1961-06-02
US3388255A
(en)
*
1964-06-22
1968-06-11
George A. May
Solid-state voltage-scanned device including long narrow p-n junction material with photoconductors thereon
US3375373A
(en)
*
1964-08-25
1968-03-26
Hughes Aircraft Co
Solid state bistable circuit
1968
1968-02-16
US
US706100A
patent/US3461344A/en
not_active
Expired – Lifetime
1968-08-29
GB
GB1232405D
patent/GB1232405A/en
not_active
Expired
1968-09-03
JP
JP6280068A
patent/JPS494800B1/ja
active
Pending
1968-12-06
DE
DE1814003A
patent/DE1814003C3/en
not_active
Expired
Also Published As
Publication number
Publication date
DE1814003A1
(en)
1969-08-21
DE1814003B2
(en)
1974-03-07
US3461344A
(en)
1969-08-12
JPS494800B1
(en)
1974-02-02
DE1814003C3
(en)
1974-10-10
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Legal Events
Date
Code
Title
Description
1971-09-29
PS
Patent sealed [section 19, patents act 1949]
1986-04-30
PCNP
Patent ceased through non-payment of renewal fee
