BR112013008625A8 - sistema de iluminação de fundo para um monitor - Google Patents

sistema de iluminação de fundo para um monitor

Info

Publication number
BR112013008625A8
BR112013008625A8 BR112013008625A BR112013008625A BR112013008625A8 BR 112013008625 A8 BR112013008625 A8 BR 112013008625A8 BR 112013008625 A BR112013008625 A BR 112013008625A BR 112013008625 A BR112013008625 A BR 112013008625A BR 112013008625 A8 BR112013008625 A8 BR 112013008625A8
Authority
BR
Brazil
Prior art keywords
monitor
backlighting system
backlighting
Prior art date
Application number
BR112013008625A
Other languages
English (en)
Other versions
BR112013008625A2 (pt
Inventor
Aitken Andrew
T Barnhoefer Ulrich
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 BR112013008625A2 publication Critical patent/BR112013008625A2/pt
Publication of BR112013008625A8 publication Critical patent/BR112013008625A8/pt

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
    • 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
    • G09G3/36—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
    • G09G2320/00—Control of display operating conditions
    • G09G2320/02—Improving the quality of display appearance
    • G09G2320/0247—Flicker reduction other than flicker reduction circuits used for single beam cathode-ray tubes
    • 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
    • G09G2320/0633—Adjustment of display parameters for control of overall brightness by amplitude 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
    • G09G2320/0626—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
    • 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
    • G09G2330/021—Power management, e.g. power saving
    • 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
    • G09G2360/144—Detecting light within display terminals, e.g. using a single or a plurality of photosensors the light being ambient light
BR112013008625A 2010-09-21 2011-08-31 sistema de iluminação de fundo para um monitor BR112013008625A8 (pt)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US12/887,243 US9524679B2 (en) 2010-09-21 2010-09-21 Backlight system for a display
PCT/US2011/050032 WO2012039909A1 (en) 2010-09-21 2011-08-31 Backlight system for a display

Publications (2)

Publication Number Publication Date
BR112013008625A2 BR112013008625A2 (pt) 2016-06-21
BR112013008625A8 true BR112013008625A8 (pt) 2017-10-17

Family

ID=44675822

Family Applications (1)

Application Number Title Priority Date Filing Date
BR112013008625A BR112013008625A8 (pt) 2010-09-21 2011-08-31 sistema de iluminação de fundo para um monitor

Country Status (7)

Country Link
US (1) US9524679B2 (pt)
EP (1) EP2619748A1 (pt)
KR (1) KR101354385B1 (pt)
CN (1) CN102411908B (pt)
BR (1) BR112013008625A8 (pt)
TW (1) TWI451386B (pt)
WO (1) WO2012039909A1 (pt)

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US10062334B2 (en) * 2012-07-31 2018-08-28 Apple Inc. Backlight dimming control for a display utilizing quantum dots
JP6201287B2 (ja) * 2012-09-24 2017-09-27 セイコーエプソン株式会社 表示装置、及び、表示装置の制御方法
US9232588B2 (en) * 2012-10-04 2016-01-05 Aydin Display, Inc. Fault tolerant LED backlight for an LCD display
CN104424913B (zh) * 2013-08-26 2017-04-05 深圳中电长城信息安全系统有限公司 一种背光亮度调节电路、背光亮度调节方法及计算机
US9814106B2 (en) * 2013-10-30 2017-11-07 Apple Inc. Backlight driver chip incorporating a phase lock loop (PLL) with programmable offset/delay and seamless operation
KR102147243B1 (ko) 2013-11-04 2020-08-24 삼성전자 주식회사 전자장치의 충전 장치 및 방법
KR102208862B1 (ko) * 2013-11-14 2021-01-28 삼성전자주식회사 디스플레이 장치 및 이의 백라이트 구동 방법
CN105764204B (zh) * 2014-12-18 2018-01-19 欧普照明股份有限公司 一种pwm调光方法及pwm调光装置
US10076802B2 (en) * 2014-12-19 2018-09-18 Illinois Tool Works Inc. Electric arc start systems and methods
CN105096844A (zh) * 2015-08-20 2015-11-25 武汉华星光电技术有限公司 面板及电子装置
GB201519103D0 (en) * 2015-10-28 2015-12-16 Rockwell Collins Inc Image modulation apparatus
US10366663B2 (en) * 2016-02-18 2019-07-30 Synaptics Incorporated Dithering a clock used to update a display to mitigate display artifacts
CN107770893A (zh) * 2016-08-15 2018-03-06 肖志军 柔滑控制led灯光亮度的pwm供电方法
KR102395792B1 (ko) 2017-10-18 2022-05-11 삼성디스플레이 주식회사 표시 장치 및 그 구동 방법
CN108491275B (zh) * 2018-03-13 2022-12-13 Oppo广东移动通信有限公司 程序优化方法、装置、终端及存储介质
US10825406B2 (en) * 2018-09-28 2020-11-03 Microsoft Technology Licensing, Llc LCD display backlight control system
US11145260B2 (en) 2019-05-28 2021-10-12 Apple Inc. Display backlighting systems and methods for adaptive pulse width modulation and modulo pulse width modulation
CN112017601B (zh) * 2019-05-28 2023-09-15 苹果公司 电子设备和控制电路
US10991320B2 (en) * 2019-06-12 2021-04-27 Facebook Technologies, Llc Adaptive synchronization
CN112669741B (zh) * 2019-10-16 2023-01-03 北京小米移动软件有限公司 发光控制方法及装置、电子设备
TWI745038B (zh) * 2020-08-20 2021-11-01 瑞鼎科技股份有限公司 非等差的脈寬調變調光方法
TWI809623B (zh) * 2021-12-27 2023-07-21 茂達電子股份有限公司 顯示裝置的調光方法

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US6700692B2 (en) 1997-04-02 2004-03-02 Gentex Corporation Electrochromic rearview mirror assembly incorporating a display/signal light
US6618042B1 (en) * 1999-10-28 2003-09-09 Gateway, Inc. Display brightness control method and apparatus for conserving battery power
US7176948B2 (en) * 2000-04-12 2007-02-13 Honeywell International Inc. Method, apparatus and computer program product for controlling LED backlights and for improved pulse width modulation resolution
US6888529B2 (en) 2000-12-12 2005-05-03 Koninklijke Philips Electronics N.V. Control and drive circuit arrangement for illumination performance enhancement with LED light sources
JP4210040B2 (ja) * 2001-03-26 2009-01-14 パナソニック株式会社 画像表示装置および方法
US20050083274A1 (en) 2003-07-30 2005-04-21 Aaron Beddes Sub-pulse width modulation for gamma correction and dimming control
TWI291311B (en) 2003-12-08 2007-12-11 Beyond Innovation Tech Co Ltd PWM illumination control circuit with low visual noise for LED
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
US7456829B2 (en) * 2004-12-03 2008-11-25 Hewlett-Packard Development Company, L.P. Methods and systems to control electronic display brightness
KR100620966B1 (ko) * 2004-12-15 2006-09-19 삼성전자주식회사 화면 적응적인 파워 제어 장치 및 그 방법
US8259058B2 (en) * 2007-07-12 2012-09-04 Semtech International Ag Method and device for controlling the backlighting of a flat screen
US7615974B1 (en) 2007-11-08 2009-11-10 National Semiconductor Corporation High dimming ratio LED drive circuit
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
TWI383709B (zh) 2008-02-21 2013-01-21 Chunghwa Picture Tubes Ltd 光源驅動模組及電路
JP2010060746A (ja) * 2008-09-02 2010-03-18 Sharp Corp 液晶表示装置
US8907884B2 (en) 2010-01-06 2014-12-09 Apple Inc. LED backlight system

Also Published As

Publication number Publication date
EP2619748A1 (en) 2013-07-31
US20120068978A1 (en) 2012-03-22
WO2012039909A1 (en) 2012-03-29
US9524679B2 (en) 2016-12-20
CN102411908B (zh) 2014-12-10
TWI451386B (zh) 2014-09-01
KR101354385B1 (ko) 2014-02-18
BR112013008625A2 (pt) 2016-06-21
KR20120030989A (ko) 2012-03-29
CN102411908A (zh) 2012-04-11
TW201220282A (en) 2012-05-16

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Legal Events

Date Code Title Description
B06F Objections, documents and/or translations needed after an examination request according [chapter 6.6 patent gazette]
B06U Preliminary requirement: requests with searches performed by other patent offices: procedure suspended [chapter 6.21 patent gazette]
B11B Dismissal acc. art. 36, par 1 of ipl - no reply within 90 days to fullfil the necessary requirements