JP6220981B2 - 短絡検出回路を有するエレクトロルミネセンス装置 - Google Patents

短絡検出回路を有するエレクトロルミネセンス装置 Download PDF

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Publication number
JP6220981B2
JP6220981B2 JP2016545784A JP2016545784A JP6220981B2 JP 6220981 B2 JP6220981 B2 JP 6220981B2 JP 2016545784 A JP2016545784 A JP 2016545784A JP 2016545784 A JP2016545784 A JP 2016545784A JP 6220981 B2 JP6220981 B2 JP 6220981B2
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Prior art keywords
light emitting
emitting element
short circuit
voltage
oled
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Japanese (ja)
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JP2017509105A5 (enExample
JP2017509105A (ja
Inventor
ダーク ヘンテ
ダーク ヘンテ
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Koninklijke Philips NV
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Koninklijke Philips NV
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    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
    • G01R31/26—Testing of individual semiconductor devices
    • 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]
    • H05B45/60—Circuit arrangements for operating LEDs comprising organic material, e.g. for operating organic light-emitting diodes [OLED] or polymer light-emitting diodes [PLED]
    • 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]
    • H05B45/10—Controlling the intensity of the light
    • 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
    • H05B45/37—Converter circuits
    • H05B45/3725—Switched mode power supply [SMPS]
    • H05B45/375—Switched mode power supply [SMPS] using buck topology
    • 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]
    • H05B45/40—Details of LED load circuits
    • H05B45/44—Details of LED load circuits with an active control inside an LED matrix
    • H05B45/48—Details of LED load circuits with an active control inside an LED matrix having LEDs organised in strings and incorporating parallel shunting devices
    • 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
    • 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
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
    • G01R31/26—Testing of individual semiconductor devices
    • G01R31/2607—Circuits therefor
    • G01R31/2632—Circuits therefor for testing diodes
    • G01R31/2635—Testing light-emitting diodes, laser diodes or photodiodes
    • 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]

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Electroluminescent Light Sources (AREA)
  • Circuit Arrangement For Electric Light Sources In General (AREA)
JP2016545784A 2014-01-28 2015-01-13 短絡検出回路を有するエレクトロルミネセンス装置 Active JP6220981B2 (ja)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
EP14152787 2014-01-28
EP14152787.9 2014-01-28
PCT/EP2015/050437 WO2015113805A1 (en) 2014-01-28 2015-01-13 Electroluminescent device with short detection circuit

Publications (3)

Publication Number Publication Date
JP2017509105A JP2017509105A (ja) 2017-03-30
JP2017509105A5 JP2017509105A5 (enExample) 2017-06-29
JP6220981B2 true JP6220981B2 (ja) 2017-10-25

Family

ID=50064409

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JP2016545784A Active JP6220981B2 (ja) 2014-01-28 2015-01-13 短絡検出回路を有するエレクトロルミネセンス装置

Country Status (7)

Country Link
US (1) US9713224B2 (enExample)
EP (1) EP3100062B1 (enExample)
JP (1) JP6220981B2 (enExample)
CN (1) CN105981475B (enExample)
BR (1) BR112016017176B1 (enExample)
RU (1) RU2668946C2 (enExample)
WO (1) WO2015113805A1 (enExample)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106448564B (zh) 2016-12-20 2019-06-25 京东方科技集团股份有限公司 一种oled像素电路及其驱动方法、显示装置
DE102021100854A1 (de) 2021-01-18 2022-07-21 HELLA GmbH & Co. KGaA Steuer- und/oder Regelungsmittel, Schaltungsanordnung und Verfahren zur Ansteuerung von Leuchtdioden in einem Leuchtdiodenfeld

Family Cites Families (24)

* Cited by examiner, † Cited by third party
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JPH07140490A (ja) 1993-11-16 1995-06-02 Hitachi Electron Eng Co Ltd Ｔｆｔ基板の短絡検査方法
RU2130617C1 (ru) * 1995-02-14 1999-05-20 Акционерное общество открытого типа "Автоэлектроарматура" Устройство для контроля светодиодов
DE19734750C2 (de) 1997-08-12 2003-04-30 Reitter & Schefenacker Gmbh Heckleuchte von Kraftfahrzeugen
JP2005003606A (ja) * 2003-06-13 2005-01-06 Mecc Co Ltd 表示パネルの検査装置
JP4033166B2 (ja) * 2004-04-22 2008-01-16 セイコーエプソン株式会社 電子回路、その駆動方法、電気光学装置および電子機器
JP2006210219A (ja) 2005-01-31 2006-08-10 Koito Mfg Co Ltd 車両用灯具の点灯制御回路
US7800876B2 (en) * 2006-01-09 2010-09-21 Microsemi Corp. - Analog Mixed Signal Group Ltd. Fault detection mechanism for LED backlighting
TWI299405B (en) * 2006-03-02 2008-08-01 Macroblock Inc Method and apparatus for silent current detection
AT504949B1 (de) * 2007-02-20 2008-11-15 Zizala Lichtsysteme Gmbh Schaltungsanordnung zur erkennung eines kurzschlusses von leuchtdioden
US7504783B2 (en) * 2007-03-23 2009-03-17 National Semiconductor Corporation Circuit for driving and monitoring an LED
JP2008251276A (ja) 2007-03-29 2008-10-16 Stanley Electric Co Ltd 発光ダイオード回路の故障検知装置
JP2009038247A (ja) 2007-08-02 2009-02-19 Mitsubishi Electric Corp Ｌｅｄ点灯装置
JP5317325B2 (ja) * 2008-03-26 2013-10-16 パナソニック株式会社 発光装置
US8054603B2 (en) * 2008-10-08 2011-11-08 Himax Analogic, Inc. Power converter, short detection circuit thereof, and method for detecting short
JP2010129612A (ja) 2008-11-25 2010-06-10 Panasonic Electric Works Co Ltd 点灯装置
JPWO2011040512A1 (ja) * 2009-10-02 2013-02-28 レシップホールディングス株式会社 蛍光灯駆動装置及び蛍光灯駆動装置の保護回路
JP5901966B2 (ja) * 2011-01-13 2016-04-13 ローム株式会社 Ｌｅｄショート検出回路、ｌｅｄ駆動装置、ｌｅｄ照明装置、車両
JP2013037763A (ja) 2011-06-29 2013-02-21 Arco Giken:Kk Ｌｅｄ照明回路及びｌｅｄ照明装置
US9192014B2 (en) 2011-07-19 2015-11-17 Nxp B.V. LED short circuit protection
US8773038B2 (en) * 2011-08-26 2014-07-08 Infineon Technologies Ag Driver circuit for efficiently driving a large number of LEDs
KR101876561B1 (ko) * 2011-08-26 2018-07-10 엘지디스플레이 주식회사 액정표시장치와 이의 구동방법
JP5288082B1 (ja) 2011-11-28 2013-09-11 コニカミノルタ株式会社 発光モジュール
US8933647B2 (en) * 2012-07-27 2015-01-13 Infineon Technologies Ag LED controller with current-ripple control
TWI513363B (zh) * 2012-12-07 2015-12-11 Upi Semiconductor Corp 發光二極體的短路保護電路及其短路保護方法以及應用其之發光二極體驅動裝置

Also Published As

Publication number Publication date
WO2015113805A1 (en) 2015-08-06
JP2017509105A (ja) 2017-03-30
EP3100062B1 (en) 2017-09-13
RU2016134837A (ru) 2018-03-07
BR112016017176A2 (enExample) 2017-08-08
US9713224B2 (en) 2017-07-18
RU2016134837A3 (enExample) 2018-08-02
BR112016017176B1 (pt) 2022-05-24
US20160353546A1 (en) 2016-12-01
CN105981475B (zh) 2018-08-28
RU2668946C2 (ru) 2018-10-05
CN105981475A (zh) 2016-09-28
EP3100062A1 (en) 2016-12-07

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