TW200721091A - Led driver and display device using the same - Google Patents

Led driver and display device using the same

Info

Publication number
TW200721091A
TW200721091A TW095141162A TW95141162A TW200721091A TW 200721091 A TW200721091 A TW 200721091A TW 095141162 A TW095141162 A TW 095141162A TW 95141162 A TW95141162 A TW 95141162A TW 200721091 A TW200721091 A TW 200721091A
Authority
TW
Taiwan
Prior art keywords
black insert
led
display device
led driver
signal
Prior art date
Application number
TW095141162A
Other languages
English (en)
Inventor
Go Ezaki
Taisuke Chida
Original Assignee
Rohm Co Ltd
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
Application filed by Rohm Co Ltd filed Critical Rohm Co Ltd
Publication of TW200721091A publication Critical patent/TW200721091A/zh

Links

Classifications

    • 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
    • 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
    • G09G3/3413—Details of control of colour illumination sources
    • 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
    • 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
    • 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
    • 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]
    • H05B45/20—Controlling the colour of the light
    • 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
    • G09G2310/0237—Switching ON and OFF the backlight within one frame
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G2320/00—Control of display operating conditions
    • G09G2320/02—Improving the quality of display appearance
    • G09G2320/0261—Improving the quality of display appearance in the context of movement of objects on the screen or movement of the observer relative to the 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
    • G09G2320/00—Control of display operating conditions
    • G09G2320/06—Adjustment of display parameters
    • G09G2320/0626—Adjustment of display parameters for control of overall brightness
    • G09G2320/0633—Adjustment of display parameters for control of overall brightness by amplitude modulation of the brightness of the illumination source
TW095141162A 2005-11-07 2006-11-07 Led driver and display device using the same TW200721091A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2005321748A JP4762681B2 (ja) 2005-11-07 2005-11-07 Ｌｅｄドライバ及びこれを用いた表示装置

Publications (1)

Publication Number Publication Date
TW200721091A true TW200721091A (en) 2007-06-01

Family

ID=38005943

Family Applications (1)

Application Number Title Priority Date Filing Date
TW095141162A TW200721091A (en) 2005-11-07 2006-11-07 Led driver and display device using the same

Country Status (6)

Country Link
US (1) US8120571B2 (zh)
JP (1) JP4762681B2 (zh)
KR (1) KR100977333B1 (zh)
CN (1) CN101305410B (zh)
TW (1) TW200721091A (zh)
WO (1) WO2007052792A1 (zh)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
TWI413079B (zh) * 2009-05-12 2013-10-21

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US6825559B2 (en) 2003-01-02 2004-11-30 Cree, Inc. Group III nitride based flip-chip intergrated circuit and method for fabricating
KR101182270B1 (ko) * 2007-03-30 2012-09-14 삼성전자주식회사 백라이트 유닛, 디스플레이장치 및 그 제어방법
JP5026146B2 (ja) * 2007-05-24 2012-09-12 シャープ株式会社 発光ダイオード駆動装置
US8111001B2 (en) * 2007-07-17 2012-02-07 Cree, Inc. LED with integrated constant current driver
WO2009122488A1 (ja) * 2008-03-31 2009-10-08 Ｎｅｃディスプレイソリューションズ株式会社 Ｌｅｄ光源装置およびｌｅｄ光源装置の制御方法
JP5286520B2 (ja) * 2008-04-08 2013-09-11 株式会社ジャパンディスプレイセントラル 液晶表示装置
KR101470636B1 (ko) * 2008-06-09 2014-12-09 엘지디스플레이 주식회사 액정표시장치
JP5655265B2 (ja) * 2008-11-04 2015-01-21 セイコーエプソン株式会社 プロジェクタ、画質調整方法、画質調整プログラム及び記録媒体
JP5491725B2 (ja) * 2008-11-28 2014-05-14 ローム株式会社 電力供給装置およびｌｅｄドライバ
TWI390490B (zh) * 2008-12-03 2013-03-21 Au Optronics Corp 發光二極體背光模組及其驅動電路與方法
TWI406229B (zh) * 2008-12-16 2013-08-21 Chunghwa Picture Tubes Ltd 以色序法顯色之光源裝置
CN101436393B (zh) * 2008-12-24 2012-04-18 友达光电股份有限公司 发光二极管背光模块及其驱动电路与方法
KR101119261B1 (ko) * 2009-01-14 2012-03-16 삼성전자주식회사 광원 구동 장치
TW201041427A (en) * 2009-05-11 2010-11-16 Advanced Analog Technology Inc Light system and driving circuit of light sources
KR101165428B1 (ko) 2010-05-24 2012-07-16 (주)에이티씨 구동 회로 및 이를 포함하는 구동 장치
JP5595126B2 (ja) * 2010-06-03 2014-09-24 ローム株式会社 Ｌｅｄ駆動装置およびこれを備えた電子機器
CN101996588B (zh) * 2010-11-15 2013-04-24 华映视讯（吴江）有限公司 背光模组及驱动电路
CN102592552B (zh) * 2011-01-10 2014-07-16 北京京东方光电科技有限公司 液晶显示装置的驱动装置及其驱动方法
KR102091197B1 (ko) * 2012-12-18 2020-03-18 엘지디스플레이 주식회사 발광다이오드 어레이 구동장치 및 이를 이용한 액정표시장치
JP6999382B2 (ja) * 2017-11-29 2022-01-18 株式会社ジャパンディスプレイ 表示装置
CN109036294A (zh) * 2018-08-01 2018-12-18 重庆爱奇艺智能科技有限公司 用于vr设备的屏幕搽黑的背光驱动电路及vr设备
US11462162B1 (en) * 2021-06-01 2022-10-04 Sharp Display Technology Corporation High current active matrix pixel architecture

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
TWI413079B (zh) * 2009-05-12 2013-10-21

Also Published As

Publication number Publication date
US20090040173A1 (en) 2009-02-12
WO2007052792A1 (ja) 2007-05-10
KR20080066918A (ko) 2008-07-17
JP2007127912A (ja) 2007-05-24
JP4762681B2 (ja) 2011-08-31
KR100977333B1 (ko) 2010-08-20
CN101305410B (zh) 2010-12-22
US8120571B2 (en) 2012-02-21
CN101305410A (zh) 2008-11-12

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