EP0786714A2 - Procédé et dispositif de réglage d'intensité d'un moyen d'éclairage commandé en courant ou tension pour éclairage arrière d'un moyen d'affichage spécialement pour véhicules automobiles - Google Patents

Procédé et dispositif de réglage d'intensité d'un moyen d'éclairage commandé en courant ou tension pour éclairage arrière d'un moyen d'affichage spécialement pour véhicules automobiles Download PDF

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Publication number
EP0786714A2
EP0786714A2 EP96112912A EP96112912A EP0786714A2 EP 0786714 A2 EP0786714 A2 EP 0786714A2 EP 96112912 A EP96112912 A EP 96112912A EP 96112912 A EP96112912 A EP 96112912A EP 0786714 A2 EP0786714 A2 EP 0786714A2
Authority
EP
European Patent Office
Prior art keywords
brightness
microcomputer
illuminant
display
current
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.)
Granted
Application number
EP96112912A
Other languages
German (de)
English (en)
Other versions
EP0786714B1 (fr
EP0786714A3 (fr
Inventor
Henry Strobel
Jörg Jung
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.)
Siemens AG
Original Assignee
Mannesmann VDO AG
Max Kammerer 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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=7783824&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=EP0786714(A2) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Mannesmann VDO AG, Max Kammerer GmbH filed Critical Mannesmann VDO AG
Publication of EP0786714A2 publication Critical patent/EP0786714A2/fr
Publication of EP0786714A3 publication Critical patent/EP0786714A3/fr
Application granted granted Critical
Publication of EP0786714B1 publication Critical patent/EP0786714B1/fr
Anticipated expiration legal-status Critical
Revoked legal-status Critical Current

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Classifications

    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05F—SYSTEMS FOR REGULATING ELECTRIC OR MAGNETIC VARIABLES
    • G05F1/00—Automatic systems in which deviations of an electric quantity from one or more predetermined values are detected at the output of the system and fed back to a device within the system to restore the detected quantity to its predetermined value or values, i.e. retroactive systems
    • G05F1/10—Regulating voltage or current 
    • G05F1/46—Regulating voltage or current  wherein the variable actually regulated by the final control device is DC
    • G05F1/56—Regulating voltage or current  wherein the variable actually regulated by the final control device is DC using semiconductor devices in series with the load as final control devices
    • G05F1/565—Regulating voltage or current  wherein the variable actually regulated by the final control device is DC using semiconductor devices in series with the load as final control devices sensing a condition of the system or its load in addition to means responsive to deviations in the output of the system, e.g. current, voltage, power factor
    • 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
    • G09G3/34—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 by control of light from an independent source
    • G09G3/3406—Control of illumination source

Definitions

  • the invention relates to a method for adjusting the brightness of a current- or voltage-controlled illuminant for backlighting a display and an arrangement for carrying out the method.
  • LCDs are very often used in modern operating devices to display functional states, setpoints and actual values. All LCDs have backlighting to ensure readability in all external lighting conditions. This backlighting is realized by lamps or LEDs.
  • LEDs it is also common to use LEDs to backlight individual control buttons. This either serves to display the function of the key or to help the user find the right key.
  • the aim is to achieve a harmonious, uniform illumination appearance of the display.
  • brightness values within very narrow tolerances are prescribed for the various displays such as radio, air conditioning, on-board computer or speedometer.
  • the brightness of LEDs or lamps is very wide, so that the display brightness required in motor vehicle manufacture is often not achievable.
  • the illuminants are then provided with different series resistors in order to achieve a uniform display brightness.
  • lamps and series resistors are fixed at the start of the display production. This is associated with a very high logistical effort. Errors that occur, e.g. B. by installing another lamp or a wrong resistance can not be excluded.
  • the invention is therefore based on the object of specifying a method in which the backlighting for displays with a narrowly tolerated brightness can be set without high logistical effort.
  • the object is achieved in that, after the display has been produced, a correction factor is determined as a function of the brightness of the lamp, by means of which the control voltage or the control current of the lamp is set.
  • the advantage of the invention is that the brightness of the illuminant is only adapted to the corresponding tolerances with the same hardware at the end of the strip. Possibilities of errors during assembly are prevented and the logistics effort is reduced to a minimum.
  • the control voltage or the control current of the illuminant is advantageously determined with the aid of an electronic computer which controls the Correction factor takes from a data memory in which an assignment of the brightness of the illuminant to the corresponding correction factor is stored.
  • the actual brightness of the illuminant is measured and the corresponding measured value is fed to the electronic computer.
  • a value corresponding to the average brightness of the illuminant to be expected can be supplied to the electronic computer.
  • the brightness of the illuminant is always set in the middle of the tolerance range. All other variables influencing the brightness are eliminated.
  • control signal output by the electronic computer is a pulse signal, the pulse width of which is set as a function of the brightness of the illuminant.
  • An advantageous embodiment of the invention consists in that a series connection of the illuminants leads to a fixed voltage on the one hand and is connected to a series resistor on the other hand.
  • the series resistor is connected via a transistor to an output of a first microcomputer, which has a programmable memory, the brightness signal being present at an input of the microcomputer.
  • the programmable memory can also be arranged outside the microcomputer.
  • the first microcomputer is arranged in the display control unit.
  • the first microcomputer advantageously has a diagnostic interface, by means of which the first microcomputer can be connected to a second microcomputer that controls the brightness measurement.
  • the second microcomputer is advantageously a test computer.
  • FIG. 1 the usual setting of the brightness of a backlighting of keys is shown.
  • Three LEDs 1, 2, 3 are connected with a series resistor 4 between terminal 58g of the motor vehicle and ground.
  • a transistor 5 is now connected between the series resistor 4 and ground, the base of which is connected to the input 14 of a microcomputer 7.
  • the microcomputer 7 is connected via bus lines both to a non-volatile memory 8 (EEPROM) and to a diagnostic interface 9.
  • EEPROM non-volatile memory 8
  • the microcomputer 7, memory 8 and interface 9 are arranged in a control device 6, which in turn is contained in a display device 10 for controlling an LCD display 11.
  • the light emitting diodes 1, 2 and 3 are placed behind the LCD display 11.
  • any LCDs 1, 2 and 3 can now be installed in the manufacture of the display device 10. After completion of the display device 10, the luminosity of the LEDs 1, 2 and 3 can be set in a tape end test with the aid of a test computer 12, preferably an existing production computer.
  • the brightness emitted by the LEDs is measured by a light measuring device 13 and the measured value is passed to the test computer 12 via an A / D converter.
  • This test computer 12 is also connected to the diagnostic interface 9 of the control unit 6, which can be implemented simply by a diagnostic connector. The digitized measured brightness value is thus given to the microcomputer 7 of the control device 6.
  • the transistor 5 is driven in a clocked manner, which results in a voltage change on the LEDs 1 to 3 and thus a change in the brightness of the light-emitting diodes.
  • the PWM signal is thus permanently set and is retained for the life of the LEDs.
  • the correction values stored in EEPROM 8 can be determined using tables. If the storage capacity is high, the dependency of the PWM signal on the brightness is also possible in the form of characteristic maps, which enable a higher accuracy of the adaptation to the punctually determined lighting characteristics of the LEDs.
  • the LEDs or lamps In the case of the so-called search lighting, which serves to make it easier for the user to find a key, it is advisable for the LEDs or lamps to be assigned a fixed class stored in the EEPROM 8 in accordance with their measured brightness fluctuations by the microcomputer 7. If the brightness value falls into this class, the transistor 5 is activated, otherwise the activation of the transistor 5 is omitted.
  • a resistance combination consisting of resistors 4 and 15 is necessary for this brightness adjustment.
  • the resistor 15 is short-circuited via the transistor 5 when a signal is present.
  • the LEDs with so-called low-side switches are connected to a constant voltage or current source.
  • the transistor 5 controlled by the microprocessor 7 is connected to the current source in a manner known per se.
  • the clock signal leads to a voltage change, which leads to a change in the brightness of the LEDs.

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • General Physics & Mathematics (AREA)
  • Radar, Positioning & Navigation (AREA)
  • Automation & Control Theory (AREA)
  • Control Of Indicators Other Than Cathode Ray Tubes (AREA)
  • Instrument Panels (AREA)
  • Arrangements Of Lighting Devices For Vehicle Interiors, Mounting And Supporting Thereof, Circuits Therefore (AREA)
  • Circuit Arrangement For Electric Light Sources In General (AREA)
EP96112912A 1996-01-27 1996-08-10 Procédé et dispositif de réglage d'intensité d'un moyen d'éclairage commandé en courant ou tension pour éclairage arrière d'un moyen d'affichage spécialement pour véhicules automobiles Revoked EP0786714B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19602891 1996-01-27
DE19602891A DE19602891A1 (de) 1996-01-27 1996-01-27 Verfahren und Anordnung zur Einstellung der Helligkeit eines strom- oder spannungsgesteuerten Leuchtmittels zur Hinterleuchtung einer Anzeige, insbesondere für Kraftfahrzeuge

Publications (3)

Publication Number Publication Date
EP0786714A2 true EP0786714A2 (fr) 1997-07-30
EP0786714A3 EP0786714A3 (fr) 1998-06-24
EP0786714B1 EP0786714B1 (fr) 2002-11-20

Family

ID=7783824

Family Applications (1)

Application Number Title Priority Date Filing Date
EP96112912A Revoked EP0786714B1 (fr) 1996-01-27 1996-08-10 Procédé et dispositif de réglage d'intensité d'un moyen d'éclairage commandé en courant ou tension pour éclairage arrière d'un moyen d'affichage spécialement pour véhicules automobiles

Country Status (2)

Country Link
EP (1) EP0786714B1 (fr)
DE (2) DE19602891A1 (fr)

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6150771A (en) 1997-06-11 2000-11-21 Precision Solar Controls Inc. Circuit for interfacing between a conventional traffic signal conflict monitor and light emitting diodes replacing a conventional incandescent bulb in the signal
EP1313353A1 (fr) * 2001-11-19 2003-05-21 Nokia Corporation Procédé et dispositif pour commander une diode LED
EP1152642A3 (fr) * 2000-04-27 2003-10-29 Agilent Technologies, Inc. (a Delaware corporation) Procédé et appareil pour la mesure du contenu spectral d' une source lumineuses à LEDs, ainsi que le contrôle d'une telle source
WO2003098585A1 (fr) * 2002-05-14 2003-11-27 United Parcel Service Of America, Inc. Systemes et procedes de commande de la luminosite d'un affichage de donnees avioniques
FR2889643A1 (fr) * 2005-08-08 2007-02-09 Valeo Systemes Thermiques Ajustement de l'intensite lumineuse, notamment d'un tableau de commande pour vehicule automobile
WO2007121927A1 (fr) * 2006-04-21 2007-11-01 Tridonicatco Gmbh & Co.Kg Détection d'erreurs de diodes électroluminescentes
US7382285B2 (en) 2000-10-25 2008-06-03 Garmin At, Inc. Pilot-programmable altitude range filter for cockpit traffic display
EP2113100A4 (fr) * 2007-02-22 2011-03-09 Apple Inc Système d'affichage
CN105892547A (zh) * 2015-01-29 2016-08-24 法雷奥电机设备公司 用于稳定机动车辆的车载电气网络的电源电压的稳定系统
CN109031953A (zh) * 2018-07-26 2018-12-18 上海高适软件有限公司 基于自学习的电动升降桌遇阻回退方法和系统及升降设备

Families Citing this family (51)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE29710592U1 (de) * 1997-06-18 1997-09-25 Hella KG Hueck & Co. Patente - Marken - Lizenzen, 59555 Lippstadt Anzeige für ein Fahrzeug
US7064498B2 (en) 1997-08-26 2006-06-20 Color Kinetics Incorporated Light-emitting diode based products
US6806659B1 (en) 1997-08-26 2004-10-19 Color Kinetics, Incorporated Multicolored LED lighting method and apparatus
US6777891B2 (en) 1997-08-26 2004-08-17 Color Kinetics, Incorporated Methods and apparatus for controlling devices in a networked lighting system
US20030133292A1 (en) 1999-11-18 2003-07-17 Mueller George G. Methods and apparatus for generating and modulating white light illumination conditions
US6965205B2 (en) 1997-08-26 2005-11-15 Color Kinetics Incorporated Light emitting diode based products
US6717376B2 (en) 1997-08-26 2004-04-06 Color Kinetics, Incorporated Automotive information systems
US7385359B2 (en) 1997-08-26 2008-06-10 Philips Solid-State Lighting Solutions, Inc. Information systems
US7038398B1 (en) 1997-08-26 2006-05-02 Color Kinetics, Incorporated Kinetic illumination system and methods
US7427840B2 (en) 1997-08-26 2008-09-23 Philips Solid-State Lighting Solutions, Inc. Methods and apparatus for controlling illumination
US6720745B2 (en) 1997-08-26 2004-04-13 Color Kinetics, Incorporated Data delivery track
US7113541B1 (en) 1997-08-26 2006-09-26 Color Kinetics Incorporated Method for software driven generation of multiple simultaneous high speed pulse width modulated signals
US7352339B2 (en) 1997-08-26 2008-04-01 Philips Solid-State Lighting Solutions Diffuse illumination systems and methods
US7186003B2 (en) 1997-08-26 2007-03-06 Color Kinetics Incorporated Light-emitting diode based products
US7014336B1 (en) 1999-11-18 2006-03-21 Color Kinetics Incorporated Systems and methods for generating and modulating illumination conditions
US20040052076A1 (en) 1997-08-26 2004-03-18 Mueller George G. Controlled lighting methods and apparatus
US6897624B2 (en) 1997-08-26 2005-05-24 Color Kinetics, Incorporated Packaged information systems
US7598686B2 (en) 1997-12-17 2009-10-06 Philips Solid-State Lighting Solutions, Inc. Organic light emitting diode methods and apparatus
DE19818621A1 (de) * 1998-04-25 1999-10-28 Mannesmann Vdo Ag Schaltungsanordnung zur Einstellung der Helligkeit stromgesteuerter Leuchtdioden zur Beleuchtung einer Anzeige
DE19835392A1 (de) 1998-08-06 2000-02-10 Mannesmann Vdo Ag Ansteuerschaltung für Leuchtdioden
DE19845092A1 (de) * 1998-09-30 2000-04-06 Volkswagen Ag Verfahren und Einrichtung zur Helligkeitssteuerung von Displays in einem Kraftfahrzeug
DE19848925B4 (de) * 1998-10-23 2010-04-29 Lumino Licht Elektronik Gmbh Verfahren und Schaltungsanordnung zur Ansteuerung von Leuchtdioden
DE19927434A1 (de) * 1999-06-16 2000-12-21 Valeo Auto Electric Gmbh Lichtsensor zur Ermittlung der Umgebungshelligkeit
DE19935458A1 (de) * 1999-07-28 2001-02-01 Mannesmann Vdo Ag Verfahren zur Dimmung der Lichtemission einer mit einer Leuchtstofflampe beleuchtbaren Anzeige und mit einer Leuchtstofflampe beleuchtbare, in ihrer Helligkeit dimmbare Anzeige
JP2003510856A (ja) 1999-09-29 2003-03-18 カラー・キネティックス・インコーポレーテッド 組合せ型照明及び較正装置及び複数のｌｅｄ用較正方法
DE10008888B4 (de) * 2000-02-25 2006-01-19 Audi Ag Kombiinstrument
US7642730B2 (en) 2000-04-24 2010-01-05 Philips Solid-State Lighting Solutions, Inc. Methods and apparatus for conveying information via color of light
DE10026967A1 (de) * 2000-05-31 2001-12-06 Volkswagen Ag Verfahren und Einrichtung zur Ermittlung einer Lichtstärke mittels Sensor
DE10027478A1 (de) * 2000-06-02 2001-12-06 Hella Kg Hueck & Co Beleuchtungseinrichtung für ein Kraftfahrzeug
US7202613B2 (en) 2001-05-30 2007-04-10 Color Kinetics Incorporated Controlled lighting methods and apparatus
US7303300B2 (en) 2000-09-27 2007-12-04 Color Kinetics Incorporated Methods and systems for illuminating household products
US6717559B2 (en) * 2001-01-16 2004-04-06 Visteon Global Technologies, Inc. Temperature compensated parallel LED drive circuit
US7262752B2 (en) * 2001-01-16 2007-08-28 Visteon Global Technologies, Inc. Series led backlight control circuit
US7038399B2 (en) 2001-03-13 2006-05-02 Color Kinetics Incorporated Methods and apparatus for providing power to lighting devices
US7598681B2 (en) 2001-05-30 2009-10-06 Philips Solid-State Lighting Solutions, Inc. Methods and apparatus for controlling devices in a networked lighting system
DE10209622B4 (de) * 2002-03-05 2006-02-02 Preh Gmbh Optische Anzeige
US7358679B2 (en) 2002-05-09 2008-04-15 Philips Solid-State Lighting Solutions, Inc. Dimmable LED-based MR16 lighting apparatus and methods
US7023543B2 (en) 2002-08-01 2006-04-04 Cunningham David W Method for controlling the luminous flux spectrum of a lighting fixture
DE10236870A1 (de) * 2002-08-12 2004-02-26 Hella Kg Hueck & Co. Leuchte mit einer Schaltungsanordnung zum Ansteuern von Leuchtdioden und Verfahren zum Abgleichen einer solchen Schaltungsanordnung
US7300192B2 (en) 2002-10-03 2007-11-27 Color Kinetics Incorporated Methods and apparatus for illuminating environments
DE10354746B4 (de) * 2002-11-23 2008-12-04 Preh Gmbh Schaltungsanordnung zum Betreiben von LED's
EP3416460B1 (fr) 2003-05-05 2022-10-19 Signify North America Corporation Unité d'éclairage
DE102004002398A1 (de) * 2004-01-16 2005-08-25 J.S. Technology Co., Ltd. Lichtquelle mit Leuchtdioden
DE102004003698B4 (de) 2004-01-24 2005-11-24 Preh Gmbh Schaltungsanordnung zur Ansteuerung von Leuchtmitteln
DE102004062728B3 (de) * 2004-12-27 2006-04-06 Insta Elektro Gmbh Elektrische/elektronische Schaltungsanordnung
DE102005011503B3 (de) * 2005-03-12 2006-05-18 Insta Elektro Gmbh Verfahren zur gepulsten Ansteuerung von Leuchtmitteln
DE102005038179B4 (de) * 2005-08-12 2008-05-29 Audi Ag Kraftfahrzeug
DE102007024078A1 (de) * 2007-03-23 2008-10-02 Visteon Global Technologies, Inc., Van Buren Township Ansteuereinheit für eine Lichtquelle eines beleuchteten Anzeige- und/oder Bedienelement sowie Verfahren und Vorrichtung zu dessen Kalibrierung
DE102013210261B4 (de) 2013-06-03 2018-03-22 Lisa Dräxlmaier GmbH Beleuchtungsvorrichtung für ein Fahrzeug
DE102013212895A1 (de) 2013-07-02 2015-01-08 Lemförder Electronic GmbH Beleuchtungsvorrichtung
DE102022125484A1 (de) * 2022-10-04 2024-04-04 HELLA GmbH & Co. KGaA Kraftfahrzeugaußenleuchte, insbesondere Heckleuchte, mit einem transmissiven Flüssigkristallbildschirm und wenigstens einem Leuchtmittel zur Hinterleuchtung des Flüssigkristallbildschirms

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5272327A (en) * 1992-05-26 1993-12-21 Compaq Computer Corporation Constant brightness liquid crystal display backlight control system
US5416385A (en) * 1993-09-02 1995-05-16 Rockwell International Corp. Means for compact spatial optical integration

Cited By (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6150771A (en) 1997-06-11 2000-11-21 Precision Solar Controls Inc. Circuit for interfacing between a conventional traffic signal conflict monitor and light emitting diodes replacing a conventional incandescent bulb in the signal
EP1152642A3 (fr) * 2000-04-27 2003-10-29 Agilent Technologies, Inc. (a Delaware corporation) Procédé et appareil pour la mesure du contenu spectral d' une source lumineuses à LEDs, ainsi que le contrôle d'une telle source
US7696904B2 (en) 2000-10-25 2010-04-13 Garmin At, Inc. Altitude range filter for cockpit traffic display
US7382285B2 (en) 2000-10-25 2008-06-03 Garmin At, Inc. Pilot-programmable altitude range filter for cockpit traffic display
EP1313353A1 (fr) * 2001-11-19 2003-05-21 Nokia Corporation Procédé et dispositif pour commander une diode LED
WO2003098585A1 (fr) * 2002-05-14 2003-11-27 United Parcel Service Of America, Inc. Systemes et procedes de commande de la luminosite d'un affichage de donnees avioniques
US6841947B2 (en) 2002-05-14 2005-01-11 Garmin At, Inc. Systems and methods for controlling brightness of an avionics display
FR2889643A1 (fr) * 2005-08-08 2007-02-09 Valeo Systemes Thermiques Ajustement de l'intensite lumineuse, notamment d'un tableau de commande pour vehicule automobile
WO2007121927A1 (fr) * 2006-04-21 2007-11-01 Tridonicatco Gmbh & Co.Kg Détection d'erreurs de diodes électroluminescentes
EP2343954A3 (fr) * 2006-04-21 2012-06-06 Tridonic GmbH & Co KG Détection de défaillance pour LED
EP2113100A4 (fr) * 2007-02-22 2011-03-09 Apple Inc Système d'affichage
CN105892547A (zh) * 2015-01-29 2016-08-24 法雷奥电机设备公司 用于稳定机动车辆的车载电气网络的电源电压的稳定系统
CN109031953A (zh) * 2018-07-26 2018-12-18 上海高适软件有限公司 基于自学习的电动升降桌遇阻回退方法和系统及升降设备
CN109031953B (zh) * 2018-07-26 2021-10-15 上海高适软件有限公司 基于自学习的电动升降桌遇阻回退方法和系统及升降设备

Also Published As

Publication number Publication date
EP0786714B1 (fr) 2002-11-20
DE19602891A1 (de) 1997-08-07
DE59609885D1 (de) 2003-01-02
EP0786714A3 (fr) 1998-06-24

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