DE59609885D1 - Method and arrangement for adjusting the brightness of a current- or voltage-controlled illuminant for backlighting a display, especially for motor vehicles - Google Patents

Method and arrangement for adjusting the brightness of a current- or voltage-controlled illuminant for backlighting a display, especially for motor vehicles

Info

Publication number
DE59609885D1
DE59609885D1 DE59609885T DE59609885T DE59609885D1 DE 59609885 D1 DE59609885 D1 DE 59609885D1 DE 59609885 T DE59609885 T DE 59609885T DE 59609885 T DE59609885 T DE 59609885T DE 59609885 D1 DE59609885 D1 DE 59609885D1
Authority
DE
Germany
Prior art keywords
backlighting
brightness
voltage
adjusting
arrangement
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 - Fee Related
Application number
DE59609885T
Other languages
German (de)
Inventor
Henry Strobel
Joerg 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
Siemens AG
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=DE59609885(D1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Siemens AG filed Critical Siemens AG
Application granted granted Critical
Publication of DE59609885D1 publication Critical patent/DE59609885D1/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

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

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)
DE59609885T 1996-01-27 1996-08-10 Method and arrangement for adjusting the brightness of a current- or voltage-controlled illuminant for backlighting a display, especially for motor vehicles Expired - Fee Related DE59609885D1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19602891A DE19602891A1 (en) 1996-01-27 1996-01-27 Method and arrangement for adjusting the brightness of a current- or voltage-controlled illuminant for backlighting a display, in particular for motor vehicles

Publications (1)

Publication Number Publication Date
DE59609885D1 true DE59609885D1 (en) 2003-01-02

Family

ID=7783824

Family Applications (2)

Application Number Title Priority Date Filing Date
DE19602891A Withdrawn DE19602891A1 (en) 1996-01-27 1996-01-27 Method and arrangement for adjusting the brightness of a current- or voltage-controlled illuminant for backlighting a display, in particular for motor vehicles
DE59609885T Expired - Fee Related DE59609885D1 (en) 1996-01-27 1996-08-10 Method and arrangement for adjusting the brightness of a current- or voltage-controlled illuminant for backlighting a display, especially for motor vehicles

Family Applications Before (1)

Application Number Title Priority Date Filing Date
DE19602891A Withdrawn DE19602891A1 (en) 1996-01-27 1996-01-27 Method and arrangement for adjusting the brightness of a current- or voltage-controlled illuminant for backlighting a display, in particular for motor vehicles

Country Status (2)

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

Families Citing this family (41)

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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
DE29710592U1 (en) * 1997-06-18 1997-08-14 Hella KG Hueck & Co. Patente - Marken - Lizenzen, 59555 Lippstadt Display for a vehicle
US6717376B2 (en) 1997-08-26 2004-04-06 Color Kinetics, Incorporated Automotive information systems
US6806659B1 (en) 1997-08-26 2004-10-19 Color Kinetics, Incorporated Multicolored LED lighting method and apparatus
US20040052076A1 (en) 1997-08-26 2004-03-18 Mueller George G. Controlled lighting methods 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
DE19818621A1 (en) * 1998-04-25 1999-10-28 Mannesmann Vdo Ag Circuit arrangement for adjusting the brightness of current-controlled light-emitting diodes for illuminating a display
DE19835392A1 (en) 1998-08-06 2000-02-10 Mannesmann Vdo Ag Control circuit for light emitting diodes
DE19845092A1 (en) * 1998-09-30 2000-04-06 Volkswagen Ag Controlling brightness of display in motor vehicle based on intensity of sun using pattern recognition to produce brightness change based on intensity and angle of incidence
DE19848925B4 (en) * 1998-10-23 2010-04-29 Lumino Licht Elektronik Gmbh Method and circuit arrangement for controlling light-emitting diodes
DE19927434A1 (en) * 1999-06-16 2000-12-21 Valeo Auto Electric Gmbh Light sensor for determining ambient clarity around motor vehicle senses reflected light from vehicle internal surface
DE19935458A1 (en) * 1999-07-28 2001-02-01 Mannesmann Vdo Ag Dimming of light emission of display illuminated by fluorescent lamp by heating lamp for stable operation
DE10008888B4 (en) * 2000-02-25 2006-01-19 Audi Ag instrument cluster
US6448550B1 (en) * 2000-04-27 2002-09-10 Agilent Technologies, Inc. Method and apparatus for measuring spectral content of LED light source and control thereof
DE10026967A1 (en) * 2000-05-31 2001-12-06 Volkswagen Ag Determination of light intensity in passenger compartment of vehicle, involves arranging sensor such that overall detection area of sensor is increased and external light impinging on the area is detected integrally
DE10027478A1 (en) * 2000-06-02 2001-12-06 Hella Kg Hueck & Co Lighting device for a motor vehicle
US7303300B2 (en) 2000-09-27 2007-12-04 Color Kinetics Incorporated Methods and systems for illuminating household products
JP2004518213A (en) 2000-10-25 2004-06-17 ユナイテッド　パーセル　サービス　オブ　アメリカ　インコーポレイテッド Altitude range filter for cockpit traffic display
US7262752B2 (en) 2001-01-16 2007-08-28 Visteon Global Technologies, Inc. Series led backlight control circuit
US6717559B2 (en) * 2001-01-16 2004-04-06 Visteon Global Technologies, Inc. Temperature compensated parallel LED drive circuit
EP1313353A1 (en) * 2001-11-19 2003-05-21 Nokia Corporation Method and device for operating a light emitting diode
DE10209622B4 (en) 2002-03-05 2006-02-02 Preh Gmbh Optical display
US6841947B2 (en) * 2002-05-14 2005-01-11 Garmin At, Inc. Systems and methods for controlling brightness of an avionics display
DE10236870A1 (en) * 2002-08-12 2004-02-26 Hella Kg Hueck & Co. Control circuit for use with light emitting diodes, uses a transistor controlled by an operational amplifier as a comparator
DE10354746B4 (en) * 2002-11-23 2008-12-04 Preh Gmbh Circuit arrangement for operating LEDs
EP3416460B1 (en) 2003-05-05 2022-10-19 Signify North America Corporation Lighting unit
DE102004002398A1 (en) * 2004-01-16 2005-08-25 J.S. Technology Co., Ltd. Light source comprising printed circuit board with RGB LEDs and controllers, used in optical scanner, produces white light with stable color temperature
DE102004003698B4 (en) * 2004-01-24 2005-11-24 Preh Gmbh Circuit arrangement for controlling bulbs
DE102004062728B3 (en) * 2004-12-27 2006-04-06 Insta Elektro Gmbh Electric/electronic circuit structure for dimming multiple LEDs connected in series has a controllable source of current and a clock generator for pulse-width modulation of LED supply voltage
DE102005011503B3 (en) * 2005-03-12 2006-05-18 Insta Elektro Gmbh Lighting method for pulsed triggering of lighting devices/LEDs splits a period into multiple time blocks of different duration firmly arranged as to time within the period
FR2889643A1 (en) * 2005-08-08 2007-02-09 Valeo Systemes Thermiques Control board`s light intensity adjusting device for motor vehicle, has light sources supplied with supply currents from control interfaces, and control correctors modulating current in light sources according to required luminance
DE102005038179B4 (en) * 2005-08-12 2008-05-29 Audi Ag motor vehicle
DE102006018575A1 (en) * 2006-04-21 2007-10-25 Tridonicatco Gmbh & Co. Kg Error detection of LEDs
US7928939B2 (en) * 2007-02-22 2011-04-19 Apple Inc. Display system
DE102007024078A1 (en) * 2007-03-23 2008-10-02 Visteon Global Technologies, Inc., Van Buren Township Control unit for light source of illuminated display or operating element, has power electronics formed for controlling light source by pulse width modulated signal and programmable micro controller
DE102013210261B4 (en) 2013-06-03 2018-03-22 Lisa Dräxlmaier GmbH Lighting device for a vehicle
DE102013212895A1 (en) 2013-07-02 2015-01-08 Lemförder Electronic GmbH lighting device
FR3032308B1 (en) * 2015-01-29 2017-02-24 Valeo Equip Electr Moteur SYSTEM FOR STABILIZING A POWER SUPPLY VOLTAGE OF AN ELECTRICAL NETWORK ON BOARD OF A MOTOR VEHICLE
CN109031953B (en) * 2018-07-26 2021-10-15 上海高适软件有限公司 Self-learning-based electric lifting table resistance-encountering rollback method and system and lifting equipment
DE102022125484A1 (en) 2022-10-04 2024-04-04 HELLA GmbH & Co. KGaA Motor vehicle exterior light, in particular rear light, with a transmissive liquid crystal screen and at least one light source for backlighting the liquid crystal screen

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

Also Published As

Publication number Publication date
EP0786714B1 (en) 2002-11-20
EP0786714A3 (en) 1998-06-24
EP0786714A2 (en) 1997-07-30
DE19602891A1 (en) 1997-08-07

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Legal Events

Date Code Title Description
8363 Opposition against the patent
8339 Ceased/non-payment of the annual fee