WO2008114521A1 - Dispositif d'affichage à cristaux liquides, procédé de commande de ce dispositif et récepteur de télévision - Google Patents

Dispositif d'affichage à cristaux liquides, procédé de commande de ce dispositif et récepteur de télévision Download PDF

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Publication number
WO2008114521A1
WO2008114521A1 PCT/JP2008/050444 JP2008050444W WO2008114521A1 WO 2008114521 A1 WO2008114521 A1 WO 2008114521A1 JP 2008050444 W JP2008050444 W JP 2008050444W WO 2008114521 A1 WO2008114521 A1 WO 2008114521A1
Authority
WO
WIPO (PCT)
Prior art keywords
liquid crystal
display device
crystal display
gray scale
panels
Prior art date
Application number
PCT/JP2008/050444
Other languages
English (en)
Japanese (ja)
Inventor
Mitsuaki Hirata
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 WO2008114521A1 publication Critical patent/WO2008114521A1/fr

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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
    • G09G3/36—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
    • 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
    • G02F1/1347—Arrangement of liquid crystal layers or cells in which the final condition of one light beam is achieved by the addition of the effects of two or more layers or cells
    • G02F1/13471—Arrangement of liquid crystal layers or cells in which the final condition of one light beam is achieved by the addition of the effects of two or more layers or cells in which all the liquid crystal cells or layers remain transparent, e.g. FLC, ECB, DAP, HAN, TN, STN, SBE-LC cells
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G2300/00—Aspects of the constitution of display devices
    • G09G2300/02—Composition of display devices
    • G09G2300/023—Display panel composed of stacked panels
    • 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
    • G09G2320/0276—Adjustment of the gradation levels within the range of the gradation scale, e.g. by redistribution or clipping for the purpose of adaptation to the characteristics of a display device, i.e. gamma correction
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Physics & Mathematics (AREA)
  • Computer Hardware Design (AREA)
  • General Physics & Mathematics (AREA)
  • Theoretical Computer Science (AREA)
  • Liquid Crystal (AREA)
  • Liquid Crystal Display Device Control (AREA)

Abstract

L'invention concerne un dispositif d'affichage à cristaux liquides qui est muni de deux panneaux à cristaux liquides (un premier et un second panneau) destinés à afficher des images conformément à des signaux de source vidéo, et d'une pluralité de polariseurs (A, B, C) (couches d'absorption de lumière de polarisation). Ces panneaux et ces polariseurs sont disposés de manière à se chevaucher les uns les autres. Lesdits polariseurs sont maintenus entre les panneaux à cristaux liquides afin de créer une relation de type « cross-Nicol ». Le dispositif d'affichage à cristaux liquides selon l'invention est en outre doté d'une unité de conversion de valeur d'échelle de gris (422) qui convertit les valeurs d'échelle de gris des données d'image servant à afficher une image sur le second panneau. Suite à cette conversion, les parties principales de tous les nombres de bits permettant d'exprimer les valeurs d'échelle de gris sont attribuées aux données d'image qui appartiennent à une région à échelle de gris réduite.
PCT/JP2008/050444 2007-03-20 2008-01-16 Dispositif d'affichage à cristaux liquides, procédé de commande de ce dispositif et récepteur de télévision WO2008114521A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2007073655 2007-03-20
JP2007-073655 2007-03-20

Publications (1)

Publication Number Publication Date
WO2008114521A1 true WO2008114521A1 (fr) 2008-09-25

Family

ID=39765639

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP2008/050444 WO2008114521A1 (fr) 2007-03-20 2008-01-16 Dispositif d'affichage à cristaux liquides, procédé de commande de ce dispositif et récepteur de télévision

Country Status (1)

Country Link
WO (1) WO2008114521A1 (fr)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2016063675A1 (fr) * 2014-10-22 2016-04-28 ソニー株式会社 Dispositif de traitement d'image et procédé de traitement d'image
JP2016118689A (ja) * 2014-12-22 2016-06-30 エルジー ディスプレイ カンパニー リミテッド 画像表示方法及び画像表示装置
CN107863075A (zh) * 2017-11-03 2018-03-30 惠科股份有限公司 显示装置的驱动方法与驱动装置
JP2019008326A (ja) * 2018-10-03 2019-01-17 エルジー ディスプレイ カンパニー リミテッド 画像表示方法及び画像表示装置
US10242635B2 (en) 2014-12-22 2019-03-26 Lg Display Co., Ltd. Image display method and image display device
WO2019155760A1 (fr) * 2018-02-07 2019-08-15 ソニー株式会社 Dispositif de traitement d'image, dispositif d'affichage et procédé de traitement d'image

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2005077868A (ja) * 2003-09-02 2005-03-24 Seiko Epson Corp プロジェクタ
WO2006082883A1 (fr) * 2005-02-03 2006-08-10 Nikon Corporation Dispositif d'affichage, dispositif electronique et appareil de prise de vues
WO2007000851A1 (fr) * 2005-06-28 2007-01-04 Sharp Kabushiki Kaisha Dispositif d’éclairage de dispositif d’affichage, dispositif d’affichage et récepteur de télévision

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2005077868A (ja) * 2003-09-02 2005-03-24 Seiko Epson Corp プロジェクタ
WO2006082883A1 (fr) * 2005-02-03 2006-08-10 Nikon Corporation Dispositif d'affichage, dispositif electronique et appareil de prise de vues
WO2007000851A1 (fr) * 2005-06-28 2007-01-04 Sharp Kabushiki Kaisha Dispositif d’éclairage de dispositif d’affichage, dispositif d’affichage et récepteur de télévision

Cited By (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2016063675A1 (fr) * 2014-10-22 2016-04-28 ソニー株式会社 Dispositif de traitement d'image et procédé de traitement d'image
JP2016118689A (ja) * 2014-12-22 2016-06-30 エルジー ディスプレイ カンパニー リミテッド 画像表示方法及び画像表示装置
US10242635B2 (en) 2014-12-22 2019-03-26 Lg Display Co., Ltd. Image display method and image display device
CN107863075A (zh) * 2017-11-03 2018-03-30 惠科股份有限公司 显示装置的驱动方法与驱动装置
US11195445B2 (en) 2017-11-03 2021-12-07 HKC Corporation Limited Driving apparatus and driving method of a display apparatus
WO2019085346A1 (fr) * 2017-11-03 2019-05-09 惠科股份有限公司 Procédé et dispositif de commande de dispositif d'affichage
WO2019155760A1 (fr) * 2018-02-07 2019-08-15 ソニー株式会社 Dispositif de traitement d'image, dispositif d'affichage et procédé de traitement d'image
CN111684514A (zh) * 2018-02-07 2020-09-18 索尼公司 图像处理装置、显示装置以及图像处理方法
JPWO2019155760A1 (ja) * 2018-02-07 2021-02-25 ソニー株式会社 画像処理装置、表示装置、画像処理方法
US11217189B2 (en) 2018-02-07 2022-01-04 Sony Corporation Image processing device, display apparatus, and image processing method for display panel including front and rear liquid crystal cells
CN111684514B (zh) * 2018-02-07 2022-07-22 索尼公司 图像处理装置、显示装置以及图像处理方法
US11670250B2 (en) 2018-02-07 2023-06-06 Sony Group Corporation Image processing device, display apparatus, and image processing method for converting color image signal
JP7302484B2 (ja) 2018-02-07 2023-07-04 ソニーグループ株式会社 画像処理装置、表示装置、画像処理方法
JP2019008326A (ja) * 2018-10-03 2019-01-17 エルジー ディスプレイ カンパニー リミテッド 画像表示方法及び画像表示装置

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