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WO2009031661A1 - Circuit de correction de couleurs et dispositif de présentation d'images l'utilisant - Google Patents

Circuit de correction de couleurs et dispositif de présentation d'images l'utilisant Download PDF

Info

Publication number
WO2009031661A1
WO2009031661A1 PCT/JP2008/066104 JP2008066104W WO2009031661A1 WO 2009031661 A1 WO2009031661 A1 WO 2009031661A1 JP 2008066104 W JP2008066104 W JP 2008066104W WO 2009031661 A1 WO2009031661 A1 WO 2009031661A1
Authority
WO
WIPO (PCT)
Prior art keywords
color correction
display device
image display
same
correction circuit
Prior art date
Application number
PCT/JP2008/066104
Other languages
English (en)
Japanese (ja)
Inventor
Takeshi Adachi
Original Assignee
Mitsumi Electric Co., Ltd.
Atrc Corporation
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
Priority claimed from JP2008225251A external-priority patent/JP5023024B2/ja
Application filed by Mitsumi Electric Co., Ltd., Atrc Corporation filed Critical Mitsumi Electric Co., Ltd.
Priority to CN2008801059109A priority Critical patent/CN101796572B/zh
Priority to US12/675,330 priority patent/US8594421B2/en
Publication of WO2009031661A1 publication Critical patent/WO2009031661A1/fr

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
    • G09G3/2003—Display 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
    • G09G5/00—Control arrangements or circuits for visual indicators common to cathode-ray tube indicators and other visual indicators
    • G09G5/02—Control arrangements or circuits for visual indicators common to cathode-ray tube indicators and other visual indicators characterised by the way in which colour is displayed
    • G09G5/06—Control arrangements or circuits for visual indicators common to cathode-ray tube indicators and other visual indicators characterised by the way in which colour is displayed using colour palettes, e.g. look-up tables
    • 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
    • H04N9/643—Hue control means, e.g. flesh tone control
    • 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
    • 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
    • G09G2320/06—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
    • G09G2320/06—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
    • G09G2340/00—Aspects of display data processing
    • G09G2340/06—Colour space transformation
    • 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)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Processing Of Color Television Signals (AREA)

Abstract

L'invention porte sur un circuit de correction de couleurs et sur un dispositif de présentation d'images l'utilisant, configurés pour effectuer une correction de couleurs optimale d'un signal vidéo en renforçant où supprimant certaines teintes spécifiques en réponse aux caractéristiques d'une vidéo à partir de ses informations de brillance et de son histogramme de chromaticité, et permettant de corriger la couleur d'une teinte arbitraire et par là une caractéristique de l'écran. A cet effet, l'invention se caractérise en ce qu'elle comporte: une unité de détection (11-14) détectant l'information de brillance du signal vidéo et l'histogramme de chromaticité contenant la saturation, la chromie et la teinte de la couleur; et une unité de commande (15, 16) gérant la reproduction des couleurs du signal vidéo en fonction de l'information de brillance et de l'histogramme de chromaticité, détectés par l'unité de détection.
PCT/JP2008/066104 2007-09-06 2008-09-05 Circuit de correction de couleurs et dispositif de présentation d'images l'utilisant WO2009031661A1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
CN2008801059109A CN101796572B (zh) 2007-09-06 2008-09-05 色彩补正电路以及使用该色彩补正电路的图像显示装置
US12/675,330 US8594421B2 (en) 2007-09-06 2008-09-05 Color correction circuit and image display apparatus using same

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
JP2007230953 2007-09-06
JP2007-230953 2007-09-06
JP2008225251A JP5023024B2 (ja) 2007-09-06 2008-09-02 色補正回路及びこれを用いた画像表示装置
JP2008-225251 2008-09-02

Publications (1)

Publication Number Publication Date
WO2009031661A1 true WO2009031661A1 (fr) 2009-03-12

Family

ID=40428973

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP2008/066104 WO2009031661A1 (fr) 2007-09-06 2008-09-05 Circuit de correction de couleurs et dispositif de présentation d'images l'utilisant

Country Status (1)

Country Link
WO (1) WO2009031661A1 (fr)

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2000316095A (ja) * 1999-04-30 2000-11-14 Matsushita Research Institute Tokyo Inc 画像処理装置および画像処理方法
JP2006093753A (ja) * 2004-09-21 2006-04-06 Hitachi Ltd 映像表示装置
WO2006095496A1 (fr) * 2005-03-10 2006-09-14 Sharp Kabushiki Kaisha Dispositif de changement de couleur, programme, ecran et terminal portable
JP2006267140A (ja) * 2005-03-22 2006-10-05 Hitachi Ltd 映像処理装置および携帯端末装置
JP2006311179A (ja) * 2005-04-28 2006-11-09 Hitachi Ltd 映像表示装置、それに用いる映像信号処理回路、及び映像信号の色飽和度制御方法
JP2007017862A (ja) * 2005-07-11 2007-01-25 Mitsubishi Electric Corp 画像表示装置

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2000316095A (ja) * 1999-04-30 2000-11-14 Matsushita Research Institute Tokyo Inc 画像処理装置および画像処理方法
JP2006093753A (ja) * 2004-09-21 2006-04-06 Hitachi Ltd 映像表示装置
WO2006095496A1 (fr) * 2005-03-10 2006-09-14 Sharp Kabushiki Kaisha Dispositif de changement de couleur, programme, ecran et terminal portable
JP2006267140A (ja) * 2005-03-22 2006-10-05 Hitachi Ltd 映像処理装置および携帯端末装置
JP2006311179A (ja) * 2005-04-28 2006-11-09 Hitachi Ltd 映像表示装置、それに用いる映像信号処理回路、及び映像信号の色飽和度制御方法
JP2007017862A (ja) * 2005-07-11 2007-01-25 Mitsubishi Electric Corp 画像表示装置

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