KR101254735B1 - 휘도 조정 장치 및 액정표시장치 - Google Patents

휘도 조정 장치 및 액정표시장치 Download PDF

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Publication number
KR101254735B1
KR101254735B1 KR1020060088247A KR20060088247A KR101254735B1 KR 101254735 B1 KR101254735 B1 KR 101254735B1 KR 1020060088247 A KR1020060088247 A KR 1020060088247A KR 20060088247 A KR20060088247 A KR 20060088247A KR 101254735 B1 KR101254735 B1 KR 101254735B1
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KR
South Korea
Prior art keywords
circuit
voltage
signal
output
reference voltage
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Expired - Fee Related
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KR1020060088247A
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English (en)
Korean (ko)
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KR20080024001A (ko
Inventor
한송이
타츠히사 시무라
오사무 센고쿠
Original Assignee
삼성디스플레이 주식회사
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Application filed by 삼성디스플레이 주식회사 filed Critical 삼성디스플레이 주식회사
Priority to KR1020060088247A priority Critical patent/KR101254735B1/ko
Priority to JP2006249131A priority patent/JP2008070592A/ja
Priority to DE602007012970T priority patent/DE602007012970D1/de
Priority to EP07017659A priority patent/EP1901590B1/en
Priority to US11/853,631 priority patent/US8139019B2/en
Publication of KR20080024001A publication Critical patent/KR20080024001A/ko
Application granted granted Critical
Publication of KR101254735B1 publication Critical patent/KR101254735B1/ko
Expired - Fee Related legal-status Critical Current
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    • 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
    • G09G3/36—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 using liquid crystals
    • 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
    • H05B41/00—Circuit arrangements or apparatus for igniting or operating discharge lamps
    • H05B41/14—Circuit arrangements
    • H05B41/36—Controlling
    • H05B41/38—Controlling the intensity of light
    • H05B41/39—Controlling the intensity of light continuously
    • H05B41/392—Controlling the intensity of light continuously using semiconductor devices, e.g. thyristor
    • H05B41/3921—Controlling the intensity of light continuously using semiconductor devices, e.g. thyristor with possibility of light intensity variations
    • H05B41/3927—Controlling the intensity of light continuously using semiconductor devices, e.g. thyristor with possibility of light intensity variations by pulse width modulation
    • G—PHYSICS
    • G02—OPTICS
    • G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
    • G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour 
    • G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  based on liquid crystals, e.g. single liquid crystal display cells
    • G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
    • G—PHYSICS
    • G02—OPTICS
    • G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
    • G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour 
    • G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  based on liquid crystals, e.g. single liquid crystal display cells
    • G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
    • G02F1/1333—Constructional arrangements; Manufacturing methods
    • G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G5/00—Control arrangements or circuits for visual indicators common to cathode-ray tube indicators and other visual indicators
    • G09G5/10—Intensity circuits

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  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Nonlinear Science (AREA)
  • General Physics & Mathematics (AREA)
  • Chemical & Material Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Optics & Photonics (AREA)
  • Mathematical Physics (AREA)
  • Computer Hardware Design (AREA)
  • Theoretical Computer Science (AREA)
  • Control Of Indicators Other Than Cathode Ray Tubes (AREA)
  • Liquid Crystal (AREA)
  • Liquid Crystal Display Device Control (AREA)
KR1020060088247A 2006-09-12 2006-09-12 휘도 조정 장치 및 액정표시장치 Expired - Fee Related KR101254735B1 (ko)

Priority Applications (5)

Application Number Priority Date Filing Date Title
KR1020060088247A KR101254735B1 (ko) 2006-09-12 2006-09-12 휘도 조정 장치 및 액정표시장치
JP2006249131A JP2008070592A (ja) 2006-09-12 2006-09-14 輝度調整装置及び液晶表示装置
DE602007012970T DE602007012970D1 (de) 2006-09-12 2007-09-10 Helligkeitseinstellungsvorrichtung und Flüssigkristallanzeige damit
EP07017659A EP1901590B1 (en) 2006-09-12 2007-09-10 Brightness adjusting device and liquid crystal display having the same
US11/853,631 US8139019B2 (en) 2006-09-12 2007-09-11 Brightness adjusting device and liquid crystal display having the same

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1020060088247A KR101254735B1 (ko) 2006-09-12 2006-09-12 휘도 조정 장치 및 액정표시장치

Publications (2)

Publication Number Publication Date
KR20080024001A KR20080024001A (ko) 2008-03-17
KR101254735B1 true KR101254735B1 (ko) 2013-04-16

Family

ID=38739504

Family Applications (1)

Application Number Title Priority Date Filing Date
KR1020060088247A Expired - Fee Related KR101254735B1 (ko) 2006-09-12 2006-09-12 휘도 조정 장치 및 액정표시장치

Country Status (5)

Country Link
US (1) US8139019B2 (enExample)
EP (1) EP1901590B1 (enExample)
JP (1) JP2008070592A (enExample)
KR (1) KR101254735B1 (enExample)
DE (1) DE602007012970D1 (enExample)

Families Citing this family (19)

* Cited by examiner, † Cited by third party
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US8498804B2 (en) * 2007-01-10 2013-07-30 Tomtom International B.V. Navigation device and method for conserving power
US7609240B2 (en) * 2007-02-09 2009-10-27 Samsung Electronics Co., Ltd. Light generating device, display apparatus having the same and method of driving the same
KR101512050B1 (ko) * 2008-01-25 2015-04-16 삼성디스플레이 주식회사 광원 로컬 디밍 방법, 이를 수행하기 위한 백라이트어셈블리 및 이를 갖는 표시장치
KR101325362B1 (ko) * 2008-12-23 2013-11-08 엘지디스플레이 주식회사 액정표시장치
KR101501481B1 (ko) * 2008-12-24 2015-03-30 삼성디스플레이 주식회사 디스플레이장치, 백라이트 유닛 및 상기 디스플레이 장치의구동 방법
JP2010181654A (ja) * 2009-02-05 2010-08-19 Seiko Epson Corp 表示装置，電子機器および表示装置の駆動方法
KR101341021B1 (ko) * 2009-12-11 2013-12-13 엘지디스플레이 주식회사 광원 구동 장치 및 그 구동 방법
KR101832338B1 (ko) * 2011-03-24 2018-02-27 삼성디스플레이 주식회사 표시 장치 및 그 동작 방법
US9265123B2 (en) 2011-10-07 2016-02-16 Rohm Co., Ltd. Controlling brightness of lamp in display device
JP5905229B2 (ja) * 2011-10-14 2016-04-20 シャープ株式会社 信号生成回路、バックライト点灯タイミング制御回路、信号生成方法
JP5957229B2 (ja) * 2012-01-26 2016-07-27 シャープ株式会社 画像表示装置
TWI514919B (zh) * 2013-01-17 2015-12-21 Univ Nat Chi Nan Optical power control system and optical power control device and pulse generation module group
US9241376B2 (en) * 2013-03-05 2016-01-19 Shenzhen China Star Optoelectronics Technology Co., Ltd. Driver for LED backlight and LED backlight module and liquid crystal display
KR20150072262A (ko) * 2013-12-19 2015-06-29 삼성디스플레이 주식회사 광원 구동 방법, 이 광원 구동 방법을 수행하는 광원 구동 장치 및 이 광원 구동 장치를 포함하는 표시 장치
TWI514255B (zh) * 2014-05-14 2015-12-21 Pegatron Corp 亮度控制方法與電腦一體機
JP2017151197A (ja) * 2016-02-23 2017-08-31 ソニー株式会社 ソースドライバ、表示装置、及び、電子機器
DE102017210261A1 (de) * 2017-06-20 2018-12-20 Homag Gmbh Verfahren und Vorrichtung zum thermischen Aktivieren einer Funktionsschicht eines Beschichtungsmaterials
CN111429850A (zh) * 2020-04-08 2020-07-17 深圳市华星光电半导体显示技术有限公司 显示面板及其显示方法
CN120283445A (zh) * 2023-01-31 2025-07-08 株式会社日本显示器 控制装置及照明装置

Citations (2)

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JP2000292767A (ja) 1999-04-09 2000-10-20 Matsushita Electric Ind Co Ltd 液晶表示装置
JP2002141191A (ja) 2000-11-02 2002-05-17 Tdk Corp 放電灯点灯装置

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US5422678A (en) * 1991-01-29 1995-06-06 Seiko Epson Corp. Video processor for enlarging and contracting an image in a vertical direction
JPH07191298A (ja) 1993-12-27 1995-07-28 Sharp Corp バックライト付液晶表示装置
JP3966683B2 (ja) 2000-10-26 2007-08-29 株式会社アドバンスト・ディスプレイ 液晶表示装置
JP4123766B2 (ja) 2001-12-06 2008-07-23 松下電器産業株式会社 調光制御装置
JP3610958B2 (ja) 2002-03-05 2005-01-19 セイコーエプソン株式会社 輝度制御装置およびモニタ装置
JP2003257694A (ja) * 2002-03-05 2003-09-12 Seiko Epson Corp 輝度制御装置、液晶表示器および輝度制御方法
JP3800415B2 (ja) * 2002-07-30 2006-07-26 ミネベア株式会社 パルス幅変調回路及びそれを用いた照明装置
US6724158B1 (en) * 2002-10-28 2004-04-20 Honeywell International Inc. Power linearization technique for controlling the luminance of light emitting display devices
TW200512713A (en) * 2003-09-16 2005-04-01 Beyond Innovation Tech Co Ltd PWM illumination control circuit with low visual noise
US7468722B2 (en) * 2004-02-09 2008-12-23 Microsemi Corporation Method and apparatus to control display brightness with ambient light correction
JP2005316298A (ja) * 2004-04-30 2005-11-10 Nec Lcd Technologies Ltd 液晶表示装置、該液晶表示装置に用いられる光源駆動回路及び光源駆動方法
JP4517837B2 (ja) * 2004-12-06 2010-08-04 セイコーエプソン株式会社 電気光学装置の駆動回路、電気光学装置および電子機器
TWI285350B (en) * 2005-07-29 2007-08-11 Innolux Display Corp A liquid crystal display
US20080136343A1 (en) * 2005-08-11 2008-06-12 Yu Chung-Che Resonant DC/AC inverter
US20080048582A1 (en) * 2006-08-28 2008-02-28 Robinson Shane P Pwm method and apparatus, and light source driven thereby

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JP2000292767A (ja) 1999-04-09 2000-10-20 Matsushita Electric Ind Co Ltd 液晶表示装置
JP2002141191A (ja) 2000-11-02 2002-05-17 Tdk Corp 放電灯点灯装置

Also Published As

Publication number Publication date
US20080062105A1 (en) 2008-03-13
EP1901590A1 (en) 2008-03-19
KR20080024001A (ko) 2008-03-17
JP2008070592A (ja) 2008-03-27
US8139019B2 (en) 2012-03-20
EP1901590B1 (en) 2011-03-09
DE602007012970D1 (de) 2011-04-21

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