JP4468467B2 - 映像信号制御装置、映像表示システム、及び映像信号制御方法 - Google Patents
映像信号制御装置、映像表示システム、及び映像信号制御方法 Download PDFInfo
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- JP4468467B2 JP4468467B2 JP2008168261A JP2008168261A JP4468467B2 JP 4468467 B2 JP4468467 B2 JP 4468467B2 JP 2008168261 A JP2008168261 A JP 2008168261A JP 2008168261 A JP2008168261 A JP 2008168261A JP 4468467 B2 JP4468467 B2 JP 4468467B2
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- 238000000034 method Methods 0.000 title claims description 10
- 238000001514 detection method Methods 0.000 claims description 8
- 230000015654 memory Effects 0.000 description 14
- 238000012935 Averaging Methods 0.000 description 11
- 230000004043 responsiveness Effects 0.000 description 7
- 238000006243 chemical reaction Methods 0.000 description 6
- 238000010586 diagram Methods 0.000 description 6
- 238000000926 separation method Methods 0.000 description 3
- 230000001934 delay Effects 0.000 description 2
- 230000003111 delayed effect Effects 0.000 description 2
- 230000004044 response Effects 0.000 description 2
- 208000036762 Acute promyelocytic leukaemia Diseases 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 238000005401 electroluminescence Methods 0.000 description 1
- 230000006870 function Effects 0.000 description 1
- 230000000750 progressive effect Effects 0.000 description 1
- 230000006641 stabilisation Effects 0.000 description 1
- 238000011105 stabilization Methods 0.000 description 1
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Classifications
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N9/00—Details of colour television systems
- H04N9/64—Circuits for processing colour signals
- H04N9/68—Circuits for processing colour signals for controlling the amplitude of colour signals, e.g. automatic chroma control circuits
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G5/00—Control arrangements or circuits for visual indicators common to cathode-ray tube indicators and other visual indicators
- G09G5/003—Details of a display terminal, the details relating to the control arrangement of the display terminal and to the interfaces thereto
- G09G5/006—Details of the interface to the display terminal
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N5/00—Details of television systems
- H04N5/14—Picture signal circuitry for video frequency region
- H04N5/20—Circuitry for controlling amplitude response
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N9/00—Details of colour television systems
- H04N9/77—Circuits for processing the brightness signal and the chrominance signal relative to each other, e.g. adjusting the phase of the brightness signal relative to the colour signal, correcting differential gain or differential phase
-
- 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
- G09G2320/0285—Improving the quality of display appearance using tables for spatial correction of display data
-
- 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
-
- 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
- G09G2320/10—Special adaptations of display systems for operation with variable images
- G09G2320/103—Detection of image changes, e.g. determination of an index representative of the image change
-
- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G2340/00—Aspects of display data processing
- G09G2340/16—Determination of a pixel data signal depending on the signal applied in the previous 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
- 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
- G09G2360/00—Aspects of the architecture of display systems
- G09G2360/16—Calculation or use of calculated indices related to luminance levels in display data
-
- 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]
- G09G3/3208—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] organic, e.g. using organic light-emitting diodes [OLED]
Description
[第1の実施形態]
[第2の実施形態]
Claims (4)
- フレーム毎に映像信号の平均輝度を検出する平均輝度検出手段と、
所定のフレームより前のフレームの平均輝度に対する前記所定のフレームの平均輝度の変化量が所定の閾値を超えている場合には、前記所定のフレームの平均輝度が低いほど前記所定のフレームの表示輝度を高く制御し、前記変化量が前記所定の閾値を超えていない場合には、前記所定のフレームの平均輝度と前記所定のフレームより前のフレームの平均輝度との平均値が低いほど前記所定のフレームの表示輝度を高く制御する表示輝度制御手段と、
を備えたことを特徴とする映像信号制御装置。 - 前記表示輝度制御手段は、前記所定のフレームより前のフレームの前記平均輝度と前記所定のフレームの前記平均輝度との差分を前記変化量として算出する請求項1に記載の映像信号制御装置。
- 請求項1または2に記載の映像信号制御装置と、前記表示輝度制御手段によって前記表示輝度が制御された映像を表示する表示装置とを備える映像表示システム。
- フレーム毎に映像信号の平均輝度を検出し、
所定のフレームより前のフレームの平均輝度に対する前記所定のフレームの平均輝度の変化量が所定の閾値を超えている場合には、前記所定のフレームの平均輝度が低いほど前記所定のフレームの表示輝度を高く制御し、前記変化量が前記所定の閾値を超えていない場合には、前記所定のフレームの平均輝度と前記所定のフレームより前のフレームの平均輝度との平均値が低いほど前記所定のフレームの表示輝度を高く制御することを特徴とする映像信号制御方法。
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2008168261A JP4468467B2 (ja) | 2008-06-27 | 2008-06-27 | 映像信号制御装置、映像表示システム、及び映像信号制御方法 |
US12/350,879 US8223175B2 (en) | 2008-06-27 | 2009-01-08 | Video signal control apparatus and video signal control method |
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JP2008168261A JP4468467B2 (ja) | 2008-06-27 | 2008-06-27 | 映像信号制御装置、映像表示システム、及び映像信号制御方法 |
Publications (2)
Publication Number | Publication Date |
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JP2010008739A JP2010008739A (ja) | 2010-01-14 |
JP4468467B2 true JP4468467B2 (ja) | 2010-05-26 |
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JP2008168261A Active JP4468467B2 (ja) | 2008-06-27 | 2008-06-27 | 映像信号制御装置、映像表示システム、及び映像信号制御方法 |
Country Status (2)
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US (1) | US8223175B2 (ja) |
JP (1) | JP4468467B2 (ja) |
Families Citing this family (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP5340083B2 (ja) * | 2009-08-28 | 2013-11-13 | キヤノン株式会社 | 画像表示装置及びその輝度制御方法 |
JP5545036B2 (ja) * | 2010-05-28 | 2014-07-09 | 三菱電機株式会社 | 画像処理装置、画像処理方法および画像表示装置 |
KR101712086B1 (ko) * | 2010-08-20 | 2017-03-14 | 삼성디스플레이 주식회사 | 표시 장치 및 그 구동 방법 |
KR101232086B1 (ko) * | 2010-10-08 | 2013-02-08 | 엘지디스플레이 주식회사 | 액정표시장치 및 그의 로컬디밍 제어방법 |
JP6019341B2 (ja) * | 2012-03-23 | 2016-11-02 | 株式会社Joled | 表示装置、集積回路及び制御方法 |
JP5957675B2 (ja) * | 2012-12-21 | 2016-07-27 | 株式会社Joled | 自発光表示装置、自発光表示装置の制御方法及びコンピュータプログラム |
KR20160068443A (ko) * | 2014-12-05 | 2016-06-15 | 엘지디스플레이 주식회사 | 유기발광 표시장치 및 그 제어 방법 |
KR102177725B1 (ko) * | 2015-06-29 | 2020-11-12 | 엘지디스플레이 주식회사 | 피크휘도제어부를 포함하는 유기발광다이오드 표시장치 및 그 구동방법 |
JPWO2017126309A1 (ja) | 2016-01-18 | 2018-05-24 | シャープ株式会社 | 表示装置、表示方法、制御プログラム、記録媒体、およびテレビジョン受像機 |
WO2018003665A1 (ja) * | 2016-07-01 | 2018-01-04 | シャープ株式会社 | 画像処理装置、画像処理方法、制御プログラム、および記録媒体 |
JP7181597B2 (ja) * | 2019-01-29 | 2022-12-01 | 株式会社Joled | 処理回路、表示装置、及び、処理方法 |
KR102308520B1 (ko) * | 2021-06-21 | 2021-10-05 | 황석규 | 엘이디(led) 전광판의 제어장치 및 제어방법 |
Family Cites Families (18)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP3592126B2 (ja) | 1999-02-26 | 2004-11-24 | キヤノン株式会社 | 画像表示装置及びその制御方法 |
JP2002372943A (ja) | 2001-06-15 | 2002-12-26 | Canon Inc | 画像表示装置の駆動回路、画像表示装置及び画像表示装置の駆動方法 |
JP3652352B2 (ja) | 2001-12-27 | 2005-05-25 | エルジー電子株式会社 | フラットパネル表示装置の駆動方法及び装置 |
JP2003244480A (ja) | 2002-02-20 | 2003-08-29 | Fujitsu General Ltd | 表示映像の輝度制御回路 |
JP3995505B2 (ja) * | 2002-03-25 | 2007-10-24 | 三洋電機株式会社 | 表示方法および表示装置 |
EP1437705A1 (en) | 2003-01-10 | 2004-07-14 | Deutsche Thomson-Brandt Gmbh | Method for optimizing brightness in a display device and apparatus for implementing the method |
JP4175954B2 (ja) | 2003-05-30 | 2008-11-05 | 富士フイルム株式会社 | 画像表示装置及び画像表示方法 |
US20050001935A1 (en) | 2003-07-03 | 2005-01-06 | Shinya Kiuchi | Image processing device, image display device, and image processing method |
JP4380288B2 (ja) | 2003-10-17 | 2009-12-09 | ソニー株式会社 | 映像信号処理装置、映像信号処理方法 |
KR100563467B1 (ko) | 2004-12-09 | 2006-03-23 | 엘지전자 주식회사 | 플라즈마 디스플레이 패널의 구동방법 |
JP3863904B1 (ja) | 2005-03-30 | 2006-12-27 | シャープ株式会社 | 液晶表示装置 |
JP2007049693A (ja) | 2005-03-30 | 2007-02-22 | Sharp Corp | 液晶表示装置 |
KR100713651B1 (ko) | 2005-10-28 | 2007-05-02 | 엘지전자 주식회사 | 콘트라스트 개선 및 오 방전 방지를 위한 플라즈마디스플레이 패널 구동 장치 및 구동 방법 |
JP2007147867A (ja) | 2005-11-25 | 2007-06-14 | Sony Corp | 自発光表示装置、発光条件制御装置、発光条件制御方法及びプログラム |
JP4723365B2 (ja) | 2005-12-09 | 2011-07-13 | シャープ株式会社 | 表示装置、及びその輝度調節方法 |
JP4210863B2 (ja) | 2006-07-06 | 2009-01-21 | セイコーエプソン株式会社 | 画像処理システム、表示装置、プログラムおよび情報記憶媒体 |
US8260077B2 (en) * | 2006-11-29 | 2012-09-04 | Mstar Semiconductor, Inc. | Method and apparatus for eliminating image blur |
JP2008304539A (ja) | 2007-06-05 | 2008-12-18 | Sharp Corp | 映像処理装置 |
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US8223175B2 (en) | 2012-07-17 |
US20090322796A1 (en) | 2009-12-31 |
JP2010008739A (ja) | 2010-01-14 |
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