HK1166173A1 - Led selection for white point control in backlights - Google Patents

Led selection for white point control in backlights

Info

Publication number
HK1166173A1
HK1166173A1 HK12106750.3A HK12106750A HK1166173A1 HK 1166173 A1 HK1166173 A1 HK 1166173A1 HK 12106750 A HK12106750 A HK 12106750A HK 1166173 A1 HK1166173 A1 HK 1166173A1
Authority
HK
Hong Kong
Prior art keywords
backlights
white point
point control
led selection
led
Prior art date
Application number
HK12106750.3A
Other languages
English (en)
Inventor
Chenhua You
Jean-Jacques Phillippe Drolet
Wei Chen
Original Assignee
Apple Inc
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 Apple Inc filed Critical Apple Inc
Publication of HK1166173A1 publication Critical patent/HK1166173A1/xx

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
    • G09G3/3406—Control of illumination source
    • 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
    • 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
    • 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
    • H05B45/28—Controlling the colour of the light using temperature feedback
    • 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
    • G09G2320/0242—Compensation of deficiencies in the appearance of colours
    • 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
    • G09G2320/04—Maintaining the quality of display appearance
    • G09G2320/041—Temperature compensation
    • 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
    • G09G2320/04—Maintaining the quality of display appearance
    • G09G2320/043—Preventing or counteracting the effects of ageing
    • 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
    • G09G2320/04—Maintaining the quality of display appearance
    • G09G2320/043—Preventing or counteracting the effects of ageing
    • G09G2320/048—Preventing or counteracting the effects of ageing using evaluation of the usage time
    • 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
    • G09G2320/0606—Manual adjustment
    • 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
    • G09G2320/064—Adjustment of display parameters for control of overall brightness by time modulation of the brightness of the illumination source
    • 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
    • G09G2320/0666—Adjustment of display parameters for control of colour parameters, e.g. colour temperature
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G2360/00—Aspects of the architecture of display systems
    • G09G2360/14—Detecting light within display terminals, e.g. using a single or a plurality of photosensors
    • G09G2360/145—Detecting light within display terminals, e.g. using a single or a plurality of photosensors the light originating from 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
    • 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
    • G09G3/3426—Control of illumination source using several illumination sources separately controlled corresponding to different display panel areas, e.g. along one dimension such as lines the different display panel areas being distributed in two dimensions, e.g. matrix

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Computer Hardware Design (AREA)
  • General Physics & Mathematics (AREA)
  • Theoretical Computer Science (AREA)
  • Circuit Arrangement For Electric Light Sources In General (AREA)
  • Liquid Crystal (AREA)
  • Planar Illumination Modules (AREA)
HK12106750.3A 2010-07-13 2012-07-10 Led selection for white point control in backlights HK1166173A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US12/835,439 US8558782B2 (en) 2009-03-24 2010-07-13 LED selection for white point control in backlights

Publications (1)

Publication Number Publication Date
HK1166173A1 true HK1166173A1 (en) 2012-10-19

Family

ID=44544593

Family Applications (1)

Application Number Title Priority Date Filing Date
HK12106750.3A HK1166173A1 (en) 2010-07-13 2012-07-10 Led selection for white point control in backlights

Country Status (8)

Country Link
US (1) US8558782B2 (xx)
EP (1) EP2593933A1 (xx)
KR (1) KR101317522B1 (xx)
CN (1) CN102376271B (xx)
GB (1) GB2482055B (xx)
HK (1) HK1166173A1 (xx)
TW (1) TWI455097B (xx)
WO (1) WO2012009278A1 (xx)

Families Citing this family (32)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
TWM407407U (en) * 2011-02-25 2011-07-11 Unity Opto Technology Co Ltd Improved display backlight structure which increases color saturation, brilliance, and white balance
US8575865B2 (en) * 2009-03-24 2013-11-05 Apple Inc. Temperature based white point control in backlights
TWI508624B (zh) * 2010-09-01 2015-11-11 Au Optronics Corp 發光二極體驅動方法
US9940879B2 (en) * 2011-10-05 2018-04-10 Apple Inc. White point uniformity techniques for displays
CN103079305B (zh) * 2011-10-26 2015-01-28 北京同步科技有限公司 Led照明装置及其灯光调节方法
JP5080681B1 (ja) * 2011-11-18 2012-11-21 株式会社ナナオ 表示装置、コンピュータプログラム、記録媒体及び温度推定方法
JP2013125845A (ja) * 2011-12-14 2013-06-24 Panasonic Liquid Crystal Display Co Ltd 液晶表示パネル及び液晶表示装置
US9064451B2 (en) 2012-02-01 2015-06-23 Apple Inc. Organic light emitting diode display having photodiodes
US10251233B2 (en) 2012-05-07 2019-04-02 Micron Technology, Inc. Solid state lighting systems and associated methods of operation and manufacture
TWI546952B (zh) * 2012-11-09 2016-08-21 友達光電股份有限公司 電激發光顯示面板
US9570044B2 (en) 2013-05-09 2017-02-14 Htc Corporation Image adjusting method, light source module and electronic device
RU2602340C2 (ru) * 2013-11-13 2016-11-20 Кэнон Кабусики Кайся Устройство отображения и способ его управления, светоизлучающее устройство и способ его управления, а также невременный машиночитаемый носитель хранения данных
EP2985755A1 (en) * 2014-08-11 2016-02-17 TP Vision Holding B.V. Electronic device having a part which is subject to temperature dependent deterioration
CN104879681B (zh) * 2015-04-22 2017-12-08 京东方科技集团股份有限公司 光源及其控制方法、背光模组和液晶显示装置
CN105072739A (zh) * 2015-07-20 2015-11-18 上海信洁照明科技有限公司 D65、d75标准光源及其色漂补偿方法
KR102374266B1 (ko) * 2015-10-02 2022-03-18 삼성전자주식회사 백색 발광 모듈 및 led 조명 장치
DE102015117852A1 (de) * 2015-10-20 2017-04-20 Technische Universität Darmstadt Verfahren zur Steuerung einer Leuchteinrichtung und Leuchteinrichtung
EP3387879B1 (en) * 2015-12-10 2019-06-26 Signify Holding B.V. Deriving a white-point for use in a multi-color light scene
US9603213B1 (en) 2016-02-05 2017-03-21 Abl Ip Holding Llc Controlling multiple groups of LEDs
EP3217764B1 (en) * 2016-03-10 2022-04-27 Dialog Semiconductor (UK) Limited Driving circuit for a light-emitting diode backlight and method for driving the same
US10306729B2 (en) * 2016-04-19 2019-05-28 Apple Inc. Display with ambient-adaptive backlight color
US10607551B2 (en) 2017-03-21 2020-03-31 Dolby Laboratories Licesing Corporation Temperature-compensated LED-backlit liquid crystal displays
CN107068114B (zh) * 2017-04-24 2019-04-30 北京小米移动软件有限公司 屏幕颜色调整方法、装置、设备及存储介质
WO2019013109A1 (ja) * 2017-07-13 2019-01-17 シャープ株式会社 液晶表示装置
CN107393483B (zh) * 2017-07-24 2019-12-31 武汉华星光电技术有限公司 量子点液晶显示器及其白点调整装置、白点调整方法
JP6973275B2 (ja) * 2018-04-27 2021-11-24 京セラドキュメントソリューションズ株式会社 画像形成装置、及び表示装置
DE112019001927T5 (de) 2018-05-31 2021-03-11 Phoseon Technology, Inc. Verfahren und system zum kalibrieren von uv-lichtquellen
TWI669702B (zh) * 2018-08-22 2019-08-21 友達光電股份有限公司 顯示裝置及其操作方法
US10660174B2 (en) * 2018-10-16 2020-05-19 Ideal Industries Lighting Llc Solid state luminaire with field-configurable CCT and/or luminosity
US10874006B1 (en) 2019-03-08 2020-12-22 Abl Ip Holding Llc Lighting fixture controller for controlling color temperature and intensity
CN114545682A (zh) * 2021-12-31 2022-05-27 惠科股份有限公司 背光模组、显示装置以及显示设备
CN117157700A (zh) * 2022-03-31 2023-12-01 京东方科技集团股份有限公司 背光模组及其驱动方法、显示模组

Family Cites Families (55)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7014336B1 (en) 1999-11-18 2006-03-21 Color Kinetics Incorporated Systems and methods for generating and modulating illumination conditions
US6285344B1 (en) 1998-03-13 2001-09-04 Apple Computer, Inc. Automatic adjustment of color balance and other display parameters in digital displays
JP2001209049A (ja) 2000-01-27 2001-08-03 Sony Corp 照明装置及び液晶表示装置
US6608614B1 (en) * 2000-06-22 2003-08-19 Rockwell Collins, Inc. Led-based LCD backlight with extended color space
US6636003B2 (en) 2000-09-06 2003-10-21 Spectrum Kinetics Apparatus and method for adjusting the color temperature of white semiconduct or light emitters
US6411046B1 (en) 2000-12-27 2002-06-25 Koninklijke Philips Electronics, N. V. Effective modeling of CIE xy coordinates for a plurality of LEDs for white LED light control
US6630801B2 (en) 2001-10-22 2003-10-07 Lümileds USA Method and apparatus for sensing the color point of an RGB LED white luminary using photodiodes
US6693394B1 (en) 2002-01-25 2004-02-17 Yazaki North America, Inc. Brightness compensation for LED lighting based on ambient temperature
JP2003295154A (ja) 2002-03-29 2003-10-15 Fuji Photo Film Co Ltd モノクロｌｃｄの色調整方法および医用画像表示装置
US6933967B2 (en) 2002-09-10 2005-08-23 Sony Corporation Color reference system for display monitor
EP1662583B1 (en) * 2003-07-28 2018-11-07 Nichia Corporation Light-emitting apparatus, led illumination, led light-emitting apparatus, and method of controlling light-emitting apparatus
US7119500B2 (en) 2003-12-05 2006-10-10 Dialight Corporation Dynamic color mixing LED device
KR100605892B1 (ko) * 2004-02-17 2006-08-01 삼성전자주식회사 휴대용 단말기의 색상변경 방법
US20050263674A1 (en) 2004-05-27 2005-12-01 Joon-Chok Lee Method and apparatus for adjusting a mixed light produced by first and second light sources of first and second colors
US7626345B2 (en) 2005-02-23 2009-12-01 Dialight Corporation LED assembly, and a process for manufacturing the LED assembly
US7384150B2 (en) * 2005-05-27 2008-06-10 3M Innovative Properties Company Light emitting diode (LED) illumination control system and method
CA2621362A1 (en) 2005-06-08 2006-12-14 Tir Technology Lp Backlighting apparatus and method
EP1949765B1 (en) * 2005-11-18 2017-07-12 Cree, Inc. Solid state lighting panels with variable voltage boost current sources
US8514210B2 (en) * 2005-11-18 2013-08-20 Cree, Inc. Systems and methods for calibrating solid state lighting panels using combined light output measurements
TWI293194B (en) 2005-12-16 2008-02-01 Promos Technologies Inc Structure analysis method of deep trench
DE102006056057A1 (de) * 2006-02-28 2007-09-06 Samsung Electro - Mechanics Co., Ltd., Suwon Antriebsvorrichtung für ein farbiges LED-Hintergrundlicht
CN101433129B (zh) 2006-04-28 2012-01-04 夏普株式会社 照明装置和包括该照明装置的液晶显示装置
US20070274093A1 (en) 2006-05-25 2007-11-29 Honeywell International, Inc. LED backlight system for LCD displays
US8259078B2 (en) 2006-06-09 2012-09-04 Apple Inc. Touch screen liquid crystal display
KR101190484B1 (ko) 2006-06-09 2012-10-12 애플 인크. 터치 스크린 액정 디스플레이
WO2008029324A2 (en) 2006-09-06 2008-03-13 Philips Intellectual Property & Standards Gmbh Generating light by color mixing
US7821474B2 (en) 2006-10-13 2010-10-26 Apple Inc. Rendering luminance levels of a high dynamic range display
US8748909B2 (en) 2006-11-03 2014-06-10 Apple Inc. Display system
JP2008140704A (ja) 2006-12-04 2008-06-19 Stanley Electric Co Ltd Ｌｅｄバックライト
US20080136770A1 (en) * 2006-12-07 2008-06-12 Microsemi Corp. - Analog Mixed Signal Group Ltd. Thermal Control for LED Backlight
US7736017B2 (en) 2006-12-21 2010-06-15 Osram Opto Semiconductors Gmbh Illumination device and display with illumination device
US7928939B2 (en) 2007-02-22 2011-04-19 Apple Inc. Display system
US7932879B2 (en) * 2007-05-08 2011-04-26 Sony Ericsson Mobile Communications Ab Controlling electroluminescent panels in response to cumulative utilization
US20080309633A1 (en) 2007-06-13 2008-12-18 Apple Inc. Touch-sensitive display
US8040326B2 (en) 2007-06-13 2011-10-18 Apple Inc. Integrated in-plane switching display and touch sensor
US7777755B2 (en) 2007-06-21 2010-08-17 Apple Inc. Display device calibration system
TWI479891B (zh) 2007-06-26 2015-04-01 Apple Inc 動態背光調適
TWI466093B (zh) 2007-06-26 2014-12-21 Apple Inc 用於視訊播放的管理技術
US7777760B2 (en) 2007-06-29 2010-08-17 Apple Inc. Display color correcting system
US8169388B2 (en) 2007-07-02 2012-05-01 Apple Inc. Color correction apparatus
JP2009020340A (ja) * 2007-07-12 2009-01-29 Renesas Technology Corp 表示装置及び表示装置駆動回路
US20090033612A1 (en) * 2007-07-31 2009-02-05 Roberts John K Correction of temperature induced color drift in solid state lighting displays
US7911442B2 (en) * 2007-08-27 2011-03-22 Au Optronics Corporation Dynamic color gamut of LED backlight
US7965300B2 (en) 2007-11-15 2011-06-21 Sharp Laboratories Of America, Inc. Methods and systems for efficient white balance and gamma control
US8400391B2 (en) * 2008-01-10 2013-03-19 Honeywell International Inc. Method and system for improving dimming performance in a field sequential color display device
US8531126B2 (en) 2008-02-13 2013-09-10 Canon Components, Inc. White light emitting apparatus and line illuminator using the same in image reading apparatus
KR100986359B1 (ko) 2008-03-14 2010-10-08 엘지이노텍 주식회사 발광 장치 및 이를 구비한 표시 장치
KR101280390B1 (ko) 2008-05-13 2013-07-01 엘지디스플레이 주식회사 엘이디 백라이트 유닛 및 이를 이용한 액정표시장치모듈
US8125163B2 (en) * 2008-05-21 2012-02-28 Manufacturing Resources International, Inc. Backlight adjustment system
US9001161B2 (en) 2008-06-06 2015-04-07 Dolby Laboratories Licensing Corporation Chromaticity control for solid-state illumination sources
US9135889B2 (en) * 2008-10-14 2015-09-15 Apple Inc. Color correction of electronic displays
US9165493B2 (en) * 2008-10-14 2015-10-20 Apple Inc. Color correction of electronic displays utilizing gain control
JP5305884B2 (ja) 2008-12-17 2013-10-02 株式会社東芝 画像処理装置、画像処理方法、及び画像処理プログラム
WO2010110970A1 (en) 2009-03-24 2010-09-30 Apple Inc. White point control in backlights
US8575865B2 (en) * 2009-03-24 2013-11-05 Apple Inc. Temperature based white point control in backlights

Also Published As

Publication number Publication date
GB2482055A (en) 2012-01-18
US8558782B2 (en) 2013-10-15
KR101317522B1 (ko) 2013-10-15
WO2012009278A1 (en) 2012-01-19
KR20120006953A (ko) 2012-01-19
EP2593933A1 (en) 2013-05-22
TWI455097B (zh) 2014-10-01
GB201111904D0 (en) 2011-08-24
GB2482055B (en) 2013-01-30
US20100277410A1 (en) 2010-11-04
TW201227690A (en) 2012-07-01
CN102376271B (zh) 2014-07-02
CN102376271A (zh) 2012-03-14

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Date Code Title Description
PC Patent ceased (i.e. patent has lapsed due to the failure to pay the renewal fee)

Effective date: 20180712