GB1021901A

GB1021901A – Electroluminescent-photoconductor means for lighted column display
– Google Patents

GB1021901A – Electroluminescent-photoconductor means for lighted column display
– Google Patents
Electroluminescent-photoconductor means for lighted column display

Info

Publication number
GB1021901A

GB1021901A
GB3039/64A
GB303964A
GB1021901A
GB 1021901 A
GB1021901 A
GB 1021901A
GB 3039/64 A
GB3039/64 A
GB 3039/64A
GB 303964 A
GB303964 A
GB 303964A
GB 1021901 A
GB1021901 A
GB 1021901A
Authority
GB
United Kingdom
Prior art keywords
columns
control
column
elements
electroluminescent
Prior art date
1963-01-28
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
GB3039/64A
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.)

Bendix Corp

Original Assignee
Bendix Corp
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.)
1963-01-28
Filing date
1964-01-23
Publication date
1966-03-09

1964-01-23
Application filed by Bendix Corp
filed
Critical
Bendix Corp

1966-03-09
Publication of GB1021901A
publication
Critical
patent/GB1021901A/en

Status
Expired
legal-status
Critical
Current

Links

Espacenet

Global Dossier

Discuss

Classifications

H—ELECTRICITY

H03—ELECTRONIC CIRCUITRY

H03M—CODING; DECODING; CODE CONVERSION IN GENERAL

H03M1/00—Analogue/digital conversion; Digital/analogue conversion

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

G01R13/404—Arrangements for displaying electric variables or waveforms using modulation of a light beam otherwise than by mechanical displacement, e.g. by Kerr effect for discontinuous display, i.e. display of discrete values

G01R13/405—Arrangements for displaying electric variables or waveforms using modulation of a light beam otherwise than by mechanical displacement, e.g. by Kerr effect for discontinuous display, i.e. display of discrete values using a plurality of active, i.e. light emitting, e.g. electro-luminescent elements, i.e. bar graphs

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

G01R13/404—Arrangements for displaying electric variables or waveforms using modulation of a light beam otherwise than by mechanical displacement, e.g. by Kerr effect for discontinuous display, i.e. display of discrete values

G01R13/407—Arrangements for displaying electric variables or waveforms using modulation of a light beam otherwise than by mechanical displacement, e.g. by Kerr effect for discontinuous display, i.e. display of discrete values using a plurality of passive display elements, e.g. liquid crystal or Kerr-effect display elements

H—ELECTRICITY

H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR

H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL

H05B33/00—Electroluminescent light sources

H05B33/12—Light sources with substantially two-dimensional radiating surfaces

H—ELECTRICITY

H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR

H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL

H05B44/00—Circuit arrangements for operating electroluminescent light sources

H—ELECTRICITY

H03—ELECTRONIC CIRCUITRY

H03M—CODING; DECODING; CODE CONVERSION IN GENERAL

H03M1/00—Analogue/digital conversion; Digital/analogue conversion

H03M1/06—Continuously compensating for, or preventing, undesired influence of physical parameters

H03M1/0602—Continuously compensating for, or preventing, undesired influence of physical parameters of deviations from the desired transfer characteristic

Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS

Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE

Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS

Y02B20/00—Energy efficient lighting technologies, e.g. halogen lamps or gas discharge lamps

Y02B20/30—Semiconductor lamps, e.g. solid state lamps [SSL] light emitting diodes [LED] or organic LED [OLED]

Abstract

An indicator display device comprises a column 10 of electroluminescent (e.l.) segments 12A-12F co-operating with the scale of the indicator, a column 20 of photoconductive (p.c.) elements 24A-24F co-operating with the e.l. elements of col. 10, and second control columns 14 and 18 of e.l. and p.c. segments. In operation, the e.l. element 16G is first lit, light (dashed lines) from this rendering the p.c. elements 22F and 24F conductive, and the light signal thus running up the e.l. columns 10 and 14 until a feedback A.C. signal taken from conductors 62A-62F vice resistors 60A-60F and lead 36 is found, in the null detector 34, to balance the input signal 30 to be displayed. The columns 14 and 18 are then extinguished, while latched columns 10 and 20 remain alive. The sequence is then repeated. In an alternative (Fig. 3, not shown), the control signal runs up control columns 14 and 18, and is then transferred to the display columns 10, 20 and there held until a biased null detector clears these columns just before balance is reached on the next cycle in the control columns. In a further alternative, a third set of latched p.c.-e.l. columns are used as the display columns, being activated from the column 10 only at a set time interval.

GB3039/64A
1963-01-28
1964-01-23
Electroluminescent-photoconductor means for lighted column display

Expired

GB1021901A
(en)

Applications Claiming Priority (1)

Application Number
Priority Date
Filing Date
Title

US254373A

US3221170A
(en)

1963-01-28
1963-01-28
Electroluminescent-photoconductor means for lighted column display

Publications (1)

Publication Number
Publication Date

GB1021901A
true

GB1021901A
(en)

1966-03-09

Family
ID=22964044
Family Applications (1)

Application Number
Title
Priority Date
Filing Date

GB3039/64A
Expired

GB1021901A
(en)

1963-01-28
1964-01-23
Electroluminescent-photoconductor means for lighted column display

Country Status (3)

Country
Link

US
(1)

US3221170A
(en)

FR
(1)

FR1381753A
(en)

GB
(1)

GB1021901A
(en)

Families Citing this family (9)

* Cited by examiner, † Cited by third party

Publication number
Priority date
Publication date
Assignee
Title

US3343155A
(en)

*

1964-01-06
1967-09-19
Marcel A Pahlavan
Display apparatus

US3277455A
(en)

*

1964-02-06
1966-10-04
Bendix Corp
Ambient light control on electroluminescent segments

US3351928A
(en)

*

1964-02-17
1967-11-07
Sperry Rand Corp
Display apparatus

GB1002112A
(en)

*

1964-04-06
1965-08-25
Standard Telephones Cables Ltd
Communication system

US3328790A
(en)

*

1964-08-05
1967-06-27
Sylvania Electric Prod
Display devices

US3805036A
(en)

*

1972-09-05
1974-04-16
Bendix Corp
Arrangement for a columnar display of variation gaging signals

GB1530264A
(en)

*

1974-11-27
1978-10-25
Honeywell Ltd
Bar display with scale markers

DE2613647C3
(en)

*

1976-03-31
1981-08-27
Licentia Patent-Verwaltungs-Gmbh, 6000 Frankfurt

Control circuit

US4322720A
(en)

*

1978-01-28
1982-03-30
International Computers Limited
Display devices

Family Cites Families (6)

* Cited by examiner, † Cited by third party

Publication number
Priority date
Publication date
Assignee
Title

NL87788C
(en)

*

1954-01-14

US2783453A
(en)

*

1956-01-31
1957-02-26
Rca Corp
Electronic circuit

US2907001A
(en)

*

1956-12-31
1959-09-29
Rca Corp
Information handling systems

US3059144A
(en)

*

1959-08-21
1962-10-16
Sylvania Electric Prod
Information display device

US3069596A
(en)

*

1959-12-07
1962-12-18
Westinghouse Electric Corp
Electroluminescent screen and device

US3073963A
(en)

*

1960-10-21
1963-01-15
Gen Telephone & Elect
Shift register

1963

1963-01-28
US
US254373A
patent/US3221170A/en
not_active
Expired – Lifetime

1964

1964-01-23
GB
GB3039/64A
patent/GB1021901A/en
not_active
Expired

1964-01-28
FR
FR961741A
patent/FR1381753A/en
not_active
Expired

Also Published As

Publication number
Publication date

FR1381753A
(en)

1964-12-14

US3221170A
(en)

1965-11-30

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