WO2008096468A1 - 表示装置 - Google Patents

表示装置 Download PDF

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Publication number
WO2008096468A1
WO2008096468A1 PCT/JP2007/067622 JP2007067622W WO2008096468A1 WO 2008096468 A1 WO2008096468 A1 WO 2008096468A1 JP 2007067622 W JP2007067622 W JP 2007067622W WO 2008096468 A1 WO2008096468 A1 WO 2008096468A1
Authority
WO
WIPO (PCT)
Prior art keywords
areas
illuminating
luminance value
light
backlight
Prior art date
Application number
PCT/JP2007/067622
Other languages
English (en)
French (fr)
Inventor
Kazuhiro Uehara
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
Publication of WO2008096468A1 publication Critical patent/WO2008096468A1/ja

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
    • G09G3/34—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
    • G—PHYSICS
    • G02—OPTICS
    • G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
    • G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour 
    • G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  based on liquid crystals, e.g. single liquid crystal display cells
    • G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
    • G02F1/1333—Constructional arrangements; Manufacturing methods
    • G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors
    • G02F1/1336—Illuminating devices
    • G02F1/133602—Direct backlight
    • G02F1/133603—Direct backlight with LEDs
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G2310/00—Command of the display device
    • G09G2310/02—Addressing, scanning or driving the display screen or processing steps related thereto
    • G09G2310/024—Scrolling of light from the illumination source over the display in combination with the scanning of 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
    • G09G2310/00—Command of the display device
    • G09G2310/06—Details of flat display driving waveforms
    • G09G2310/061—Details of flat display driving waveforms for resetting or blanking
    • 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
    • G09G2320/0209—Crosstalk reduction, i.e. to reduce direct or indirect influences of signals directed to a certain pixel of the displayed image on other pixels of said image, inclusive of influences affecting pixels in different frames or fields or sub-images which constitute a same image, e.g. left and right images of a stereoscopic display
    • 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
    • G09G2320/0261—Improving the quality of display appearance in the context of movement of objects on the screen or movement of the observer relative to 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
    • G09G2320/06—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
    • 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 (AREA)
  • Control Of Indicators Other Than Cathode Ray Tubes (AREA)

Abstract

　複数の表示エリアを液晶パネル（表示部）（３）に設けるとともに、複数の表示エリアに対して、発光ダイオード（光源）（４）の光をそれぞれ入射させる複数の照明エリアをバックライト装置（バックライト部）（２）に設定する。さらに、入力された画像信号を用いて、複数の各照明エリアから対応する表示エリアに入射される光の輝度値を決定し、かつ、照明エリア毎に、周囲の照明エリアの輝度値を用いて、決定した輝度値を補正して、補正後の輝度値に基づいてバックライト装置（２）の駆動制御を行うバックライト制御部（１５）を設ける。
PCT/JP2007/067622 2007-02-07 2007-09-11 表示装置 WO2008096468A1 (ja)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2007028366 2007-02-07
JP2007-028366 2007-02-07

Publications (1)

Publication Number Publication Date
WO2008096468A1 true WO2008096468A1 (ja) 2008-08-14

Family

ID=39681384

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP2007/067622 WO2008096468A1 (ja) 2007-02-07 2007-09-11 表示装置

Country Status (1)

Country Link
WO (1) WO2008096468A1 (ja)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2010032442A1 (ja) * 2008-09-18 2010-03-25 シャープ株式会社 画像表示装置及び画像表示方法
JP2010072361A (ja) * 2008-09-18 2010-04-02 Sharp Corp 画像表示装置及び画像表示方法
JP2010072360A (ja) * 2008-09-18 2010-04-02 Sharp Corp 画像表示装置及び画像表示方法
JP2010091819A (ja) * 2008-10-08 2010-04-22 Sharp Corp 画像表示装置及び画像表示方法
JP2010096857A (ja) * 2008-10-14 2010-04-30 Sharp Corp 画像表示装置及び画像表示方法
WO2010082641A1 (ja) * 2009-01-19 2010-07-22 シャープ株式会社 画像表示装置及び画像表示方法
WO2011132437A1 (ja) * 2010-04-20 2011-10-27 シャープ株式会社 表示装置

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2000275604A (ja) * 1999-03-23 2000-10-06 Hitachi Ltd 液晶表示装置
JP2002099250A (ja) * 2000-09-21 2002-04-05 Toshiba Corp 表示装置
JP2005241678A (ja) * 2004-02-24 2005-09-08 Matsushita Electric Ind Co Ltd 液晶表示装置
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

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2000275604A (ja) * 1999-03-23 2000-10-06 Hitachi Ltd 液晶表示装置
JP2002099250A (ja) * 2000-09-21 2002-04-05 Toshiba Corp 表示装置
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
JP2005241678A (ja) * 2004-02-24 2005-09-08 Matsushita Electric Ind Co Ltd 液晶表示装置

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2010032442A1 (ja) * 2008-09-18 2010-03-25 シャープ株式会社 画像表示装置及び画像表示方法
JP2010072361A (ja) * 2008-09-18 2010-04-02 Sharp Corp 画像表示装置及び画像表示方法
JP2010072360A (ja) * 2008-09-18 2010-04-02 Sharp Corp 画像表示装置及び画像表示方法
US8723848B2 (en) 2008-09-18 2014-05-13 Sharp Kabushiki Kaisha Image display apparatus and image display method
JP2010091819A (ja) * 2008-10-08 2010-04-22 Sharp Corp 画像表示装置及び画像表示方法
JP2010096857A (ja) * 2008-10-14 2010-04-30 Sharp Corp 画像表示装置及び画像表示方法
WO2010082641A1 (ja) * 2009-01-19 2010-07-22 シャープ株式会社 画像表示装置及び画像表示方法
JP2010164900A (ja) * 2009-01-19 2010-07-29 Sharp Corp 画像表示装置及び画像表示方法
US8842109B2 (en) 2009-01-19 2014-09-23 Sharp Kabushiki Kaisha Image display device and image display method
WO2011132437A1 (ja) * 2010-04-20 2011-10-27 シャープ株式会社 表示装置

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