WO2008152832A1 - 液晶表示装置 - Google Patents

液晶表示装置 Download PDF

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Publication number
WO2008152832A1
WO2008152832A1 PCT/JP2008/052401 JP2008052401W WO2008152832A1 WO 2008152832 A1 WO2008152832 A1 WO 2008152832A1 JP 2008052401 W JP2008052401 W JP 2008052401W WO 2008152832 A1 WO2008152832 A1 WO 2008152832A1
Authority
WO
WIPO (PCT)
Prior art keywords
correction
luminance level
liquid crystal
crystal display
color
Prior art date
Application number
PCT/JP2008/052401
Other languages
English (en)
French (fr)
Inventor
Takeshi Masuda
Tokihiko Shinomiya
Original Assignee
Sharp Kabushiki Kaisha
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 Sharp Kabushiki Kaisha filed Critical Sharp Kabushiki Kaisha
Priority to CN2008800067184A priority Critical patent/CN101622657B/zh
Priority to US12/449,529 priority patent/US20100013872A1/en
Publication of WO2008152832A1 publication Critical patent/WO2008152832A1/ja

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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
    • G09G3/3413—Details of control of colour illumination sources
    • 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
    • G09G3/3611—Control of matrices with row and column drivers
    • G09G3/3648—Control of matrices with row and column drivers using an active matrix
    • 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
    • G09G2320/02—Improving the quality of display appearance
    • G09G2320/0271—Adjustment of the gradation levels within the range of the gradation scale, e.g. by redistribution or clipping
    • 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
    • G09G2320/0646—Modulation of illumination source brightness and image signal correlated to each other
    • 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
    • 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
    • G09G3/342—Control of illumination source using several illumination sources separately controlled corresponding to different display panel areas, e.g. along one dimension such as lines
    • G09G3/3426—Control of illumination source using several illumination sources separately controlled corresponding to different display panel areas, e.g. along one dimension such as lines the different display panel areas being distributed in two dimensions, e.g. matrix

Abstract

　本発明は、液晶表示装置に関し、特に、パネルの背面にバックライトを備える透過型の液晶表示装置に関する。 　ＲＧＢ画像信号に基づいて各色についての輝度レベル分布を取得する入力画像輝度レベル解析回路（１２０）と各色についての輝度レベル分布に基づいて補正係数を算出する補正係数算出回路（１４０）と補正係数に基づいてＲＧＢ画像信号の示す輝度レベルを補正する画像信号補正回路（１６０）とを含む階調信号生成部（１００）と、補正係数に基づいて各色用のＬＥＤの発光量を調整するバックライト光量制御回路（６００）とを備える。補正係数算出回路（１４０）では、輝度レベルの補正によってＲＧＢ各色間の輝度レベル分布の差異が小さくなるように、補正係数の算出が行われる。バックライト光量制御回路（６００）では、輝度レベルの変化と発光量の変化とが相殺されるように、各色の発光量の調整が行われる。                                                                                 
PCT/JP2008/052401 2007-06-11 2008-02-14 液晶表示装置 WO2008152832A1 (ja)

Priority Applications (2)

Application Number Priority Date Filing Date Title
CN2008800067184A CN101622657B (zh) 2007-06-11 2008-02-14 液晶显示装置
US12/449,529 US20100013872A1 (en) 2007-06-11 2008-02-14 Liquid crystal display device

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2007154201 2007-06-11
JP2007-154201 2007-06-11

Publications (1)

Publication Number Publication Date
WO2008152832A1 true WO2008152832A1 (ja) 2008-12-18

Family

ID=40129445

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP2008/052401 WO2008152832A1 (ja) 2007-06-11 2008-02-14 液晶表示装置

Country Status (3)

Country Link
US (1) US20100013872A1 (ja)
CN (1) CN101622657B (ja)
WO (1) WO2008152832A1 (ja)

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2010150299A1 (ja) * 2009-06-22 2010-12-29 株式会社 東芝 液晶表示装置
EP2438588A2 (en) * 2009-06-03 2012-04-11 Manufacturing Resources International, INC. Dynamic dimming led backlight
US20120154459A1 (en) * 2009-09-30 2012-06-21 Sharp Kabushiki Kaisha Image display device and image display method
CN102752604A (zh) * 2012-06-18 2012-10-24 深圳创维－Rgb电子有限公司 一种图像显示方法及智能设备
US10126579B2 (en) 2013-03-14 2018-11-13 Manfuacturing Resources International, Inc. Rigid LCD assembly
US10768483B2 (en) 2015-09-01 2020-09-08 Manufacturing Resources International, Inc. Optical sheet tensioning device
US10921510B2 (en) 2013-12-02 2021-02-16 Manufacturing Resources International, Inc. Expandable light guide for backlight
US11474393B2 (en) 2014-10-08 2022-10-18 Manufacturing Resources International, Inc. Lighting assembly for electronic display and graphic

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BRPI0822306A2 (pt) * 2008-02-14 2015-06-16 Sharp Kk Dispositivo de exibição
US20120092242A1 (en) * 2009-03-27 2012-04-19 Koninklijke Philips Electronics N.V. Device for placement in front of a display device
TR201001102A2 (tr) * 2010-02-12 2011-09-21 Vestel Elektroni̇k Sanayi̇ Ve Ti̇caret Anoni̇m Şi̇rketi̇@ Led arkadan aydınlatmalı ekranın özelleştirilmesi.@
US9123280B2 (en) * 2010-06-23 2015-09-01 Sharp Kabushiki Kaisha Image display device and image display method
DE202010013087U1 (de) * 2010-12-08 2011-02-24 Schott Ag Anzeige
WO2012076412A1 (de) 2010-12-08 2012-06-14 Schott Ag Anzeige
WO2013035635A1 (ja) * 2011-09-07 2013-03-14 シャープ株式会社 画像表示装置および画像表示方法
KR101888682B1 (ko) * 2012-06-13 2018-08-16 삼성전자 주식회사 디스플레이장치 및 그 제어방법
WO2014191049A1 (en) * 2013-05-31 2014-12-04 Huawei Technologies Co., Ltd. Method for controllling the backlight of a lcd panel
JP6350980B2 (ja) * 2013-10-09 2018-07-04 Ｔｉａｎｍａ Ｊａｐａｎ株式会社 制御回路及び当該制御回路を備えた表示装置
JP2015222400A (ja) * 2014-05-23 2015-12-10 株式会社ジャパンディスプレイ 表示装置、表示システム及び画像処理回路
CN104575405B (zh) * 2015-02-04 2017-08-25 京东方科技集团股份有限公司 一种调节显示装置背光亮度的方法、显示装置
US10863202B2 (en) * 2015-06-12 2020-12-08 Shaoher Pan Encoding data in a source image with watermark image codes
KR102654711B1 (ko) * 2016-12-05 2024-04-05 삼성디스플레이 주식회사 표시 장치 및 이의 구동 방법
JP2018180333A (ja) * 2017-04-14 2018-11-15 株式会社ジャパンディスプレイ 表示装置及び表示モジュール
CN109979401B (zh) * 2019-05-06 2021-01-08 京东方科技集团股份有限公司 驱动方法、驱动装置、显示设备和计算机可读介质
WO2021019611A1 (ja) * 2019-07-26 2021-02-04 株式会社Ｆｕｊｉ 照明ユニット

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JPH1165531A (ja) * 1997-08-20 1999-03-09 Fujitsu Ltd 画像表示装置および画像表示用ｌｓｉ
JP2004325629A (ja) * 2003-04-23 2004-11-18 Seiko Epson Corp 表示装置、及びその調光方法
JP2005258403A (ja) * 2004-02-09 2005-09-22 Hitachi Ltd 照明装置とこれを備えた画像表示装置及び画像表示方法
JP2006145836A (ja) * 2004-11-19 2006-06-08 Alpine Electronics Inc 液晶画面色調補正装置

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JP3764504B2 (ja) * 1995-02-28 2006-04-12 ソニー株式会社 液晶表示装置
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JP4493274B2 (ja) * 2003-01-29 2010-06-30 富士通株式会社 表示装置及び表示方法
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JPH1165531A (ja) * 1997-08-20 1999-03-09 Fujitsu Ltd 画像表示装置および画像表示用ｌｓｉ
JP2004325629A (ja) * 2003-04-23 2004-11-18 Seiko Epson Corp 表示装置、及びその調光方法
JP2005258403A (ja) * 2004-02-09 2005-09-22 Hitachi Ltd 照明装置とこれを備えた画像表示装置及び画像表示方法
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Cited By (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10431166B2 (en) 2009-06-03 2019-10-01 Manufacturing Resources International, Inc. Dynamic dimming LED backlight
EP2438588A2 (en) * 2009-06-03 2012-04-11 Manufacturing Resources International, INC. Dynamic dimming led backlight
EP2438588A4 (en) * 2009-06-03 2013-01-16 Mri Inc DYNAMIC ABDIMM LED TAIL LIGHT
KR101796718B1 (ko) 2009-06-03 2017-11-10 매뉴팩처링 리소시스 인터내셔널 인코포레이티드 Ｌｅｄ 백라이트의 다이나믹 디밍
WO2010150299A1 (ja) * 2009-06-22 2010-12-29 株式会社 東芝 液晶表示装置
US20120154459A1 (en) * 2009-09-30 2012-06-21 Sharp Kabushiki Kaisha Image display device and image display method
US8988338B2 (en) * 2009-09-30 2015-03-24 Sharp Kabushiki Kaisha Image display device having a plurality of image correction modes for a plurality of image areas and image display method
CN102752604A (zh) * 2012-06-18 2012-10-24 深圳创维－Rgb电子有限公司 一种图像显示方法及智能设备
US10126579B2 (en) 2013-03-14 2018-11-13 Manfuacturing Resources International, Inc. Rigid LCD assembly
US10831050B2 (en) 2013-03-14 2020-11-10 Manufacturing Resources International, Inc. Rigid LCD assembly
US10921510B2 (en) 2013-12-02 2021-02-16 Manufacturing Resources International, Inc. Expandable light guide for backlight
US11474393B2 (en) 2014-10-08 2022-10-18 Manufacturing Resources International, Inc. Lighting assembly for electronic display and graphic
US10768483B2 (en) 2015-09-01 2020-09-08 Manufacturing Resources International, Inc. Optical sheet tensioning device
US11275269B2 (en) 2015-09-01 2022-03-15 Manufacturing Resources International, Inc. Optical sheet tensioning device
US11656498B2 (en) 2015-09-01 2023-05-23 Manufacturing Resources International, Inc. Optical sheet tensioning device

Also Published As

Publication number Publication date
US20100013872A1 (en) 2010-01-21
CN101622657B (zh) 2012-05-09
CN101622657A (zh) 2010-01-06

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