JP2008242330A - バックライト制御装置及びバックライト制御方法 - Google Patents

バックライト制御装置及びバックライト制御方法 Download PDF

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Publication number
JP2008242330A
JP2008242330A JP2007086119A JP2007086119A JP2008242330A JP 2008242330 A JP2008242330 A JP 2008242330A JP 2007086119 A JP2007086119 A JP 2007086119A JP 2007086119 A JP2007086119 A JP 2007086119A JP 2008242330 A JP2008242330 A JP 2008242330A
Authority
JP
Japan
Prior art keywords
signal
histogram
video signal
backlight control
unit
Prior art date
Legal status (The legal status 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 status listed.)
Withdrawn
Application number
JP2007086119A
Other languages
English (en)
Japanese (ja)
Other versions
JP2008242330A5 (enExample
Inventor
Yuichi Honda
雄一 本田
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Toshiba Corp
Original Assignee
Toshiba Corp
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 Toshiba Corp filed Critical Toshiba Corp
Priority to JP2007086119A priority Critical patent/JP2008242330A/ja
Priority to US12/044,755 priority patent/US20080238861A1/en
Priority to EP08004565A priority patent/EP1983502A3/en
Publication of JP2008242330A publication Critical patent/JP2008242330A/ja
Publication of JP2008242330A5 publication Critical patent/JP2008242330A5/ja
Withdrawn legal-status Critical Current

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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
    • 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
    • G09G2360/16—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)
  • Liquid Crystal Display Device Control (AREA)
  • Video Image Reproduction Devices For Color Tv Systems (AREA)
  • Processing Of Color Television Signals (AREA)
  • Control Of Indicators Other Than Cathode Ray Tubes (AREA)
JP2007086119A 2007-03-29 2007-03-29 バックライト制御装置及びバックライト制御方法 Withdrawn JP2008242330A (ja)

Priority Applications (3)

Application Number Priority Date Filing Date Title
JP2007086119A JP2008242330A (ja) 2007-03-29 2007-03-29 バックライト制御装置及びバックライト制御方法
US12/044,755 US20080238861A1 (en) 2007-03-29 2008-03-07 Backlight control apparatus and backlight control method
EP08004565A EP1983502A3 (en) 2007-03-29 2008-03-12 Backlight control apparatus and backlight control method

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2007086119A JP2008242330A (ja) 2007-03-29 2007-03-29 バックライト制御装置及びバックライト制御方法

Publications (2)

Publication Number Publication Date
JP2008242330A true JP2008242330A (ja) 2008-10-09
JP2008242330A5 JP2008242330A5 (enExample) 2010-01-21

Family

ID=39512558

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2007086119A Withdrawn JP2008242330A (ja) 2007-03-29 2007-03-29 バックライト制御装置及びバックライト制御方法

Country Status (3)

Country Link
US (1) US20080238861A1 (enExample)
EP (1) EP1983502A3 (enExample)
JP (1) JP2008242330A (enExample)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2010145627A (ja) * 2008-12-17 2010-07-01 Toshiba Corp 画像処理装置、画像処理方法、及び画像処理プログラム

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20100066659A1 (en) * 2008-09-12 2010-03-18 Pei-Chuan Liu Method and system of dynamic backlight modulation
JP5301681B2 (ja) * 2009-11-20 2013-09-25 シャープ株式会社 液晶表示装置
US9805662B2 (en) * 2015-03-23 2017-10-31 Intel Corporation Content adaptive backlight power saving technology

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101058125B1 (ko) * 2004-02-23 2011-08-24 삼성전자주식회사 화상 표시 방법 및 표시 장치와, 이의 구동 장치 및 방법
WO2006025120A1 (ja) 2004-09-01 2006-03-09 Mitsubishi Denki Kabushiki Kaisha 画像表示装置および画像表示方法
TW200638330A (en) 2005-04-21 2006-11-01 Sunplus Technology Co Ltd Brightness control method and device for a display

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2010145627A (ja) * 2008-12-17 2010-07-01 Toshiba Corp 画像処理装置、画像処理方法、及び画像処理プログラム
US8749591B2 (en) 2008-12-17 2014-06-10 Kabushiki Kaisha Toshiba Image processing apparatus, image processing method, and image display device

Also Published As

Publication number Publication date
EP1983502A3 (en) 2009-06-03
US20080238861A1 (en) 2008-10-02
EP1983502A2 (en) 2008-10-22

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