KR101991514B1 - 발광 소자 구동 회로, 발광 장치, 표시 장치, 및 발광 제어 방법 - Google Patents

발광 소자 구동 회로, 발광 장치, 표시 장치, 및 발광 제어 방법 Download PDF

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Publication number
KR101991514B1
KR101991514B1 KR1020110139012A KR20110139012A KR101991514B1 KR 101991514 B1 KR101991514 B1 KR 101991514B1 KR 1020110139012 A KR1020110139012 A KR 1020110139012A KR 20110139012 A KR20110139012 A KR 20110139012A KR 101991514 B1 KR101991514 B1 KR 101991514B1
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South Korea
Prior art keywords
light emitting
constant current
current source
current
emitting element
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Expired - Fee Related
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KR1020110139012A
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English (en)
Korean (ko)
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KR20120085185A (ko
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노리마사 후루카와
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소니 주식회사
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    • 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]
    • H05B45/382—Switched mode power supply [SMPS] with galvanic isolation between input and output
    • 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
    • G09G3/342—Control of illumination source using several illumination sources separately controlled corresponding to different display panel areas, e.g. along one dimension such as lines
    • 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
    • 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]
    • H05B45/38—Switched mode power supply [SMPS] using boost 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]
    • H05B45/60—Circuit arrangements for operating LEDs comprising organic material, e.g. for operating organic light-emitting diodes [OLED] or polymer light-emitting diodes [PLED]
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G2310/00—Command of the display device
    • G09G2310/02—Addressing, scanning or driving the display screen or processing steps related thereto
    • G09G2310/024—Scrolling of light from the illumination source over the display in combination with the scanning of the display screen
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G2330/00—Aspects of power supply; Aspects of display protection and defect management
    • G09G2330/02—Details of power systems and of start or stop of display operation
    • G09G2330/025—Reduction of instantaneous peaks of current
    • 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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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Computer Hardware Design (AREA)
  • General Physics & Mathematics (AREA)
  • Theoretical Computer Science (AREA)
  • Control Of Indicators Other Than Cathode Ray Tubes (AREA)
  • Circuit Arrangement For Electric Light Sources In General (AREA)
  • Liquid Crystal Display Device Control (AREA)
  • Led Devices (AREA)
  • Liquid Crystal (AREA)
KR1020110139012A 2011-01-21 2011-12-21 발광 소자 구동 회로, 발광 장치, 표시 장치, 및 발광 제어 방법 Expired - Fee Related KR101991514B1 (ko)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2011010449A JP5720266B2 (ja) 2011-01-21 2011-01-21 発光素子駆動回路、発光装置、表示装置、および発光制御方法
JPJP-P-2011-010449 2011-01-21

Publications (2)

Publication Number Publication Date
KR20120085185A KR20120085185A (ko) 2012-07-31
KR101991514B1 true KR101991514B1 (ko) 2019-06-20

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Family Applications (1)

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KR1020110139012A Expired - Fee Related KR101991514B1 (ko) 2011-01-21 2011-12-21 발광 소자 구동 회로, 발광 장치, 표시 장치, 및 발광 제어 방법

Country Status (5)

Country Link
US (2) US10172194B2 (https=)
JP (1) JP5720266B2 (https=)
KR (1) KR101991514B1 (https=)
CN (1) CN102610196B (https=)
TW (1) TWI577121B (https=)

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US11710446B2 (en) 2020-07-21 2023-07-25 Silicon Works Co., Ltd. LED driving device and LED driving method

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KR102635868B1 (ko) * 2016-01-26 2024-02-14 삼성전자주식회사 전자 장치 및 그의 제어방법
JP2017225661A (ja) * 2016-06-23 2017-12-28 株式会社ユニバーサルエンターテインメント 遊技機
US10834795B2 (en) 2018-05-16 2020-11-10 Hisense Visual Technology Co., Ltd. Backlight drive circuit, backlight driving method, and display device
CN108461069B (zh) * 2018-05-16 2020-09-25 海信视像科技股份有限公司 一种多分区背光驱动电路及显示装置
CN109003585B (zh) * 2018-07-27 2020-11-20 青岛小鸟看看科技有限公司 一种液晶屏抗拖影电路和一种液晶屏
CN110264960B (zh) * 2019-04-04 2021-01-05 上海中航光电子有限公司 驱动电路及其驱动方法、面板及其驱动方法
JP2021082699A (ja) * 2019-11-19 2021-05-27 ソニーセミコンダクタソリューションズ株式会社 発光素子駆動回路および発光装置
JP2020103924A (ja) * 2020-03-03 2020-07-09 株式会社ユニバーサルエンターテインメント 遊技機
CN112331150A (zh) * 2020-11-05 2021-02-05 Tcl华星光电技术有限公司 显示装置及发光面板
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US11670224B1 (en) * 2022-01-06 2023-06-06 Novatek Microelectronics Corp. Driving circuit for LED panel and LED panel thereof
CN114627805B (zh) * 2022-05-12 2022-08-16 镭昱光电科技(苏州)有限公司 驱动电路、led单元的驱动方法和显示面板

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Also Published As

Publication number Publication date
KR20120085185A (ko) 2012-07-31
TWI577121B (zh) 2017-04-01
JP5720266B2 (ja) 2015-05-20
US10165633B2 (en) 2018-12-25
JP2012151057A (ja) 2012-08-09
US20150257220A1 (en) 2015-09-10
CN102610196A (zh) 2012-07-25
CN102610196B (zh) 2016-06-01
US10172194B2 (en) 2019-01-01
US20120188293A1 (en) 2012-07-26
TW201240307A (en) 2012-10-01

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