WO2008142602A3 - Dynamic power control for display screens - Google Patents

Dynamic power control for display screens Download PDF

Info

Publication number
WO2008142602A3
WO2008142602A3 PCT/IB2008/051844 IB2008051844W WO2008142602A3 WO 2008142602 A3 WO2008142602 A3 WO 2008142602A3 IB 2008051844 W IB2008051844 W IB 2008051844W WO 2008142602 A3 WO2008142602 A3 WO 2008142602A3
Authority
WO
WIPO (PCT)
Prior art keywords
zone
brightness
screen
zones
virtual
Prior art date
Application number
PCT/IB2008/051844
Other languages
French (fr)
Other versions
WO2008142602A2 (en
Inventor
Jonathan A G Schenck
Andrew M Francis
Geoffrey Lunn
Original Assignee
Koninkl Philips Electronics Nv
Jonathan A G Schenck
Andrew M Francis
Geoffrey Lunn
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 Koninkl Philips Electronics Nv, Jonathan A G Schenck, Andrew M Francis, Geoffrey Lunn filed Critical Koninkl Philips Electronics Nv
Priority to JP2010508014A priority Critical patent/JP2010527043A/en
Priority to EP08751192A priority patent/EP2153430A2/en
Priority to CN2008800163571A priority patent/CN101681583B/en
Publication of WO2008142602A2 publication Critical patent/WO2008142602A2/en
Publication of WO2008142602A3 publication Critical patent/WO2008142602A3/en

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
    • G09G3/22—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 using controlled light sources
    • G09G3/30—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 using controlled light sources using electroluminescent panels
    • G09G3/32—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 using controlled light sources using electroluminescent panels semiconductive, e.g. using light-emitting diodes [LED]
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
    • G06F3/14—Digital output to display device ; Cooperation and interconnection of the display device with other functional units
    • G06F3/1423—Digital output to display device ; Cooperation and interconnection of the display device with other functional units controlling a plurality of local displays, e.g. CRT and flat panel display
    • G06F3/1446—Digital output to display device ; Cooperation and interconnection of the display device with other functional units controlling a plurality of local displays, e.g. CRT and flat panel display display composed of modules, e.g. video walls
    • 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
    • G09G2320/0233—Improving the luminance or brightness uniformity across 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
    • 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
    • G09G2360/16—Calculation or use of calculated indices related to luminance levels in display data

Landscapes

  • 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)
  • Transforming Electric Information Into Light Information (AREA)
  • Control Of El Displays (AREA)

Abstract

A display system (100) includes a screen (110) configured to display an image with a screen brightness; and a processor (120) configured to divide the screen (110) into zones, to determine a zone brightness of each zone, e.g., via real time content analysis of the image displayed in the zone; and to reduce the screen brightness by a factor when the zone brightness of one of the zones is greater than a threshold. The threshold is associated with a maximum rated current drawn from a power supply (140) driving a zone, and each zone may be driven by a respective power supply (140). The processor (120) may also be configured to measure virtual zone brightness of virtual zones which are moved by a predetermined distance across the screen, and reduce the screen brightness by the factor when the virtual zone brightness of one of the virtual zones is greater than the threshold.
PCT/IB2008/051844 2007-05-16 2008-05-09 Dynamic power control for display screens WO2008142602A2 (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
JP2010508014A JP2010527043A (en) 2007-05-16 2008-05-09 Dynamic power control of display screen
EP08751192A EP2153430A2 (en) 2007-05-16 2008-05-09 Dynamic power control for display screens
CN2008800163571A CN101681583B (en) 2007-05-16 2008-05-09 Dynamic power control for display screens

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
EP07108345 2007-05-16
EP07108345.5 2007-05-16

Publications (2)

Publication Number Publication Date
WO2008142602A2 WO2008142602A2 (en) 2008-11-27
WO2008142602A3 true WO2008142602A3 (en) 2009-03-12

Family

ID=39689152

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/IB2008/051844 WO2008142602A2 (en) 2007-05-16 2008-05-09 Dynamic power control for display screens

Country Status (6)

Country Link
EP (1) EP2153430A2 (en)
JP (1) JP2010527043A (en)
KR (1) KR20100021459A (en)
CN (1) CN101681583B (en)
TW (1) TW200912886A (en)
WO (1) WO2008142602A2 (en)

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DE102009030176B4 (en) * 2009-06-24 2014-02-06 Init Innovative Informatikanwendungen In Transport-, Verkehrs- Und Leitsystemen Gmbh Arrangement for driving light-emitting diodes
JP5574812B2 (en) * 2010-05-12 2014-08-20 キヤノン株式会社 Image processing apparatus and image processing method
JP2012247540A (en) * 2011-05-26 2012-12-13 Mitsubishi Electric Corp Video display device
CN102768820B (en) * 2012-07-23 2015-01-28 深圳市大象视界科技有限公司 LED large screen display device and driving circuit and driving method thereof
CN104460940A (en) * 2014-11-14 2015-03-25 华中科技大学 Energy-saving display method and system of screen of smart phone or tablet personal computer
WO2016154225A1 (en) 2015-03-23 2016-09-29 Dolby Laboratories Licensing Corporation Dynamic power management for an hdr display
US10297191B2 (en) 2016-01-29 2019-05-21 Samsung Display Co., Ltd. Dynamic net power control for OLED and local dimming LCD displays
US10009570B2 (en) 2016-02-24 2018-06-26 International Business Machines Corporation Thermal management of display screens
KR102208872B1 (en) * 2016-08-26 2021-01-28 삼성전자주식회사 Display apparatus and driving method thereof
KR101884233B1 (en) 2016-08-26 2018-08-01 삼성전자주식회사 Display apparatus and driving method thereof
WO2019041321A1 (en) * 2017-09-01 2019-03-07 深圳传音通讯有限公司 Mobile terminal screen switch-off control method, apparatus, and computer storage medium
WO2019138543A1 (en) * 2018-01-12 2019-07-18 三菱電機株式会社 Display device
WO2019186746A1 (en) * 2018-03-28 2019-10-03 三菱電機株式会社 Led display system, led display control device, and led display device
CN110007818B (en) * 2019-03-04 2022-08-12 深圳威尔视觉科技有限公司 Single-machine screen resource layout method and related device
CN110767170B (en) * 2019-11-05 2020-11-10 深圳市华星光电半导体显示技术有限公司 Picture display method and picture display device
WO2022029875A1 (en) * 2020-08-04 2022-02-10 三菱電機株式会社 Led display system, led display control device, and led display device
CN113851089B (en) * 2021-09-01 2022-11-29 深圳创维－Rgb电子有限公司 Display brightness control method and device, intelligent terminal and storage medium
CN113920951A (en) * 2021-09-15 2022-01-11 上海祺壹智能科技有限公司 Method for refreshing screen with low current
CN116884341B (en) * 2023-09-06 2024-01-05 长春希达电子技术有限公司 Wall-mounted LED display device and method

Citations (7)

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US20040104907A1 (en) * 2002-11-30 2004-06-03 Samsung Electronics Co., Ltd. Image display device having functions for protecting an address driver
EP1480195A1 (en) * 2003-05-23 2004-11-24 Barco N.V. Method of displaying images on a large-screen organic light-emitting diode display, and display used therefore
WO2005088593A1 (en) * 2004-03-10 2005-09-22 Koninklijke Philips Electronics N.V. An active matrix display with reduction of power onsumption
US20050264492A1 (en) * 2002-09-04 2005-12-01 Koninklijke Philips Electronics, N.V. Electroluminescent display devices
WO2007004155A2 (en) * 2005-07-04 2007-01-11 Koninklijke Philips Electronics N.V. Oled display with extended grey scale capability
US20070115228A1 (en) * 2005-11-18 2007-05-24 Roberts John K Systems and methods for calibrating solid state lighting panels
US20070285379A1 (en) * 2006-06-09 2007-12-13 Samsung Electronics Co., Ltd. Liquid crystal display and method of adjusting brightness for the same

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Patent Citations (7)

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US20050264492A1 (en) * 2002-09-04 2005-12-01 Koninklijke Philips Electronics, N.V. Electroluminescent display devices
US20040104907A1 (en) * 2002-11-30 2004-06-03 Samsung Electronics Co., Ltd. Image display device having functions for protecting an address driver
EP1480195A1 (en) * 2003-05-23 2004-11-24 Barco N.V. Method of displaying images on a large-screen organic light-emitting diode display, and display used therefore
WO2005088593A1 (en) * 2004-03-10 2005-09-22 Koninklijke Philips Electronics N.V. An active matrix display with reduction of power onsumption
WO2007004155A2 (en) * 2005-07-04 2007-01-11 Koninklijke Philips Electronics N.V. Oled display with extended grey scale capability
US20070115228A1 (en) * 2005-11-18 2007-05-24 Roberts John K Systems and methods for calibrating solid state lighting panels
US20070285379A1 (en) * 2006-06-09 2007-12-13 Samsung Electronics Co., Ltd. Liquid crystal display and method of adjusting brightness for the same

Also Published As

Publication number Publication date
TW200912886A (en) 2009-03-16
WO2008142602A2 (en) 2008-11-27
EP2153430A2 (en) 2010-02-17
CN101681583B (en) 2012-12-12
CN101681583A (en) 2010-03-24
JP2010527043A (en) 2010-08-05
KR20100021459A (en) 2010-02-24

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