EP1337130A3 - Display - Google Patents

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Publication number
EP1337130A3
EP1337130A3 EP03003335A EP03003335A EP1337130A3 EP 1337130 A3 EP1337130 A3 EP 1337130A3 EP 03003335 A EP03003335 A EP 03003335A EP 03003335 A EP03003335 A EP 03003335A EP 1337130 A3 EP1337130 A3 EP 1337130A3
Authority
EP
European Patent Office
Prior art keywords
luminous elements
circuit groups
semiconductor
components
circuit
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Withdrawn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
EP03003335A
Other languages
German (de)
French (fr)
Other versions
EP1337130A2 (en
Inventor
Gabriel Garufo
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.)
Garufo GmbH
Original Assignee
Garufo GmbH
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 Garufo GmbH filed Critical Garufo GmbH
Publication of EP1337130A2 publication Critical patent/EP1337130A2/en
Publication of EP1337130A3 publication Critical patent/EP1337130A3/en
Withdrawn legal-status Critical Current

Links

Classifications

    • 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
    • H05B45/00—Circuit arrangements for operating light-emitting diodes [LED]
    • H05B45/50—Circuit arrangements for operating light-emitting diodes [LED] responsive to malfunctions or undesirable behaviour of LEDs; responsive to LED life; Protective circuits
    • H05B45/58—Circuit arrangements for operating light-emitting diodes [LED] responsive to malfunctions or undesirable behaviour of LEDs; responsive to LED life; Protective circuits involving end of life detection of LEDs
    • 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
    • H05B45/00—Circuit arrangements for operating light-emitting diodes [LED]
    • H05B45/30—Driver circuits
    • 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
    • H05B45/00—Circuit arrangements for operating light-emitting diodes [LED]
    • H05B45/50—Circuit arrangements for operating light-emitting diodes [LED] responsive to malfunctions or undesirable behaviour of LEDs; responsive to LED life; Protective circuits
    • H05B45/52—Circuit arrangements for operating light-emitting diodes [LED] responsive to malfunctions or undesirable behaviour of LEDs; responsive to LED life; Protective circuits in a parallel array of LEDs
    • 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
    • H05B47/00—Circuit arrangements for operating light sources in general, i.e. where the type of light source is not relevant
    • H05B47/20—Responsive to malfunctions or to light source life; for protection
    • H05B47/23—Responsive to malfunctions or to light source life; for protection of two or more light sources connected in series
    • H05B47/235—Responsive to malfunctions or to light source life; for protection of two or more light sources connected in series with communication between the lamps and a central unit

Landscapes

  • Traffic Control Systems (AREA)
  • Control Of Indicators Other Than Cathode Ray Tubes (AREA)
  • Control Of El Displays (AREA)

Abstract

Die Erfindung betrifft eine Anzeigevorrichtung für eine sich ändernde Information, wobei die Information durch Auswahl oder Kombination von einzelnen, auf einem Träger angeordneten Leuchtelementen dargestellt wird, wobei die Leuchtelemente durch Halbleiterbauelemente ausgebildet sind, insbesondere aus Leuchtdioden oder anderen integrierten Halbleiterschaltungen mit Komponenten zur Lichtemission, und die Halbleiterbauelemente in einer oder mehreren Schaltungsgruppen geschaltet sind, dadurch gekennzeichnet, dass der wenigstens einen oder mehreren Schaltungsgruppen der Halbleiterbauelemente eine Überwachungsschaltung zugeordnet ist, die eine Störung oder einen Ausfall eines Leuchtelementes detektiert und in Abhängigkeit des Zustandes der Leuchtelemente bzw. der einen oder mehreren Schaltungsgruppen ein elektronisches Überwachungssignal liefert.

Figure imgaf001
The invention relates to a display device for changing information, wherein the information is represented by selection or combination of individual, arranged on a support luminous elements, wherein the luminous elements are formed by semiconductor devices, in particular light emitting diodes or other semiconductor integrated circuits with components for emitting light, and the semiconductor components are connected in one or more circuit groups, characterized in that associated with the at least one or more circuit groups of the semiconductor components is a monitoring circuit which detects a malfunction or failure of a luminous element and in dependence on the state of the luminous elements or of the one or more circuit groups provides an electronic monitoring signal.
Figure imgaf001
EP03003335A 2002-02-15 2003-02-13 Display Withdrawn EP1337130A3 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10206649 2002-02-15
DE10206649A DE10206649A1 (en) 2002-02-15 2002-02-15 display device

Publications (2)

Publication Number Publication Date
EP1337130A2 EP1337130A2 (en) 2003-08-20
EP1337130A3 true EP1337130A3 (en) 2006-05-10

Family

ID=27618745

Family Applications (1)

Application Number Title Priority Date Filing Date
EP03003335A Withdrawn EP1337130A3 (en) 2002-02-15 2003-02-13 Display

Country Status (2)

Country Link
EP (1) EP1337130A3 (en)
DE (1) DE10206649A1 (en)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102004042093B3 (en) * 2004-08-30 2006-03-02 Pfeiffer, Ulrich, Dipl.-Ing.(FH) lamp
DE102005032719A1 (en) * 2005-07-13 2007-01-25 Siemens Ag Traffic signal system, in particular for road traffic
NZ617222A (en) * 2007-05-22 2014-07-25 Aldridge Traffic Systems Determining proportion of faulty leds in a traffic light display
DE102012206888A1 (en) * 2012-04-26 2013-10-31 Zumtobel Lighting Gmbh LED array
FR3002809B1 (en) * 2013-03-04 2016-08-26 Diam Int Sas DISPLAY OF ILLUMINATED PRODUCTS WITH PROTECTIVE DEVICES AGAINST ELECTRICAL OVERCURRENT
US20170223785A1 (en) * 2014-08-07 2017-08-03 Philips Lighting Holding B.V. Arrangement of led elements connected to a step driver

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH07287043A (en) * 1994-04-18 1995-10-31 Sankosha:Kk Disconnection detector of signal lamp using light emitting diode
EP0966183A1 (en) * 1998-06-17 1999-12-22 Colas Lamp and method of operating such lamp
EP1096834A2 (en) * 1999-10-29 2001-05-02 Garufo GmbH Display device with luminescent elements

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2672145B1 (en) * 1991-01-29 1993-05-21 Electricite De France DEVICE FOR DETECTING A DEFECT IN A LAMP OF A THREE-COLORED LIGHT AND TRAFFIC CONTROL SYSTEM COMPRISING SUCH A DEVICE.
WO1995012512A1 (en) * 1993-11-05 1995-05-11 Siemens Integra Verkehrstechnik Ag Circuit for emitting optical signals
US6133854A (en) * 1998-07-14 2000-10-17 Motorola, Inc. Satellite supported traffic signal controller
ATE285103T1 (en) * 1998-07-23 2005-01-15 Siemens Ag LIGHT SIGNAL SYSTEM AND METHOD FOR MONITORING THE LIGHT SIGNAL SYSTEM
DE19955743C1 (en) * 1999-10-29 2001-08-16 Garufo Gmbh Display device
DE20107482U1 (en) * 2001-05-02 2001-12-13 Garufo Gmbh Electronically protected power supply for circuit groups, display device for changing information

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH07287043A (en) * 1994-04-18 1995-10-31 Sankosha:Kk Disconnection detector of signal lamp using light emitting diode
EP0966183A1 (en) * 1998-06-17 1999-12-22 Colas Lamp and method of operating such lamp
EP1096834A2 (en) * 1999-10-29 2001-05-02 Garufo GmbH Display device with luminescent elements

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
PATENT ABSTRACTS OF JAPAN vol. 1996, no. 02 29 February 1996 (1996-02-29) *

Also Published As

Publication number Publication date
DE10206649A1 (en) 2003-08-28
EP1337130A2 (en) 2003-08-20

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