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WO2009047950A1 - Dispositif d'affichage - Google Patents

Dispositif d'affichage Download PDF

Info

Publication number
WO2009047950A1
WO2009047950A1 PCT/JP2008/065125 JP2008065125W WO2009047950A1 WO 2009047950 A1 WO2009047950 A1 WO 2009047950A1 JP 2008065125 W JP2008065125 W JP 2008065125W WO 2009047950 A1 WO2009047950 A1 WO 2009047950A1
Authority
WO
WIPO (PCT)
Prior art keywords
display
black insertion
display mode
display device
black
Prior art date
Legal status (The legal status 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 status listed.)
Ceased
Application number
PCT/JP2008/065125
Other languages
English (en)
Japanese (ja)
Inventor
Hideki Koh
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Sharp Corp
Original Assignee
Sharp Corp
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 Corp filed Critical Sharp Corp
Publication of WO2009047950A1 publication Critical patent/WO2009047950A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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
    • G09G3/3413—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
    • G09G2310/00—Command of the display device
    • G09G2310/02—Addressing, scanning or driving the display screen or processing steps related thereto
    • G09G2310/0243—Details of the generation of driving signals
    • G09G2310/0248—Precharge or discharge of column electrodes before or after applying exact column voltages
    • 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
    • G09G2320/0242—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
    • G09G2320/0261—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
    • G09G2320/0613—The adjustment depending on the type of the information to be displayed
    • G09G2320/062—Adjustment of illumination source parameters
    • 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
    • G09G2320/0633—Adjustment of display parameters for control of overall brightness by amplitude modulation of the brightness of the illumination source
    • 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
    • G09G2330/00—Aspects of power supply; Aspects of display protection and defect management
    • G09G2330/02—Details of power systems and of start or stop of display operation
    • G09G2330/021—Power management, e.g. power saving
    • G09G2330/023—Power management, e.g. power saving using energy recovery or conservation
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Computer Hardware Design (AREA)
  • General Physics & Mathematics (AREA)
  • Theoretical Computer Science (AREA)
  • Control Of Indicators Other Than Cathode Ray Tubes (AREA)

Abstract

L'invention porte sur un dispositif d'affichage qui utilise des diodes électroluminescentes (22r, 22g, 22b) au moins au niveau d'une partie d'une source de rétroéclairage (22) qui est constituée par une source de lumière à couleur mélangée, et lequel dispositif étant capable d'un affichage à insertion de noir dans lequel du noir est inséré uniquement durant une période donnée à l'intérieur d'une période de trame. Le dispositif d'affichage a un premier mode d'affichage dans lequel l'affichage à insertion de noir n'est pas effectué, et un deuxième mode d'affichage dans lequel l'affichage à insertion de noir est effectué, un courant de commande d'au moins une couleur des diodes électroluminescentes (22r, 22g, 22b) variant entre le premier mode d'affichage et le deuxième mode d'affichage. Par conséquent, même lorsque l'affichage à insertion de noir est effectué, un décalage de couleur dans la représentation de blanc peut être résolu de façon significative.
PCT/JP2008/065125 2007-10-09 2008-08-25 Dispositif d'affichage Ceased WO2009047950A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2007-263764 2007-10-09
JP2007263764 2007-10-09

Publications (1)

Publication Number Publication Date
WO2009047950A1 true WO2009047950A1 (fr) 2009-04-16

Family

ID=40549098

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP2008/065125 Ceased WO2009047950A1 (fr) 2007-10-09 2008-08-25 Dispositif d'affichage

Country Status (1)

Country Link
WO (1) WO2009047950A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2011136018A1 (fr) * 2010-04-28 2011-11-03 Semiconductor Energy Laboratory Co., Ltd. Dispositif d'affichage à cristaux liquides et appareil électronique

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2003295156A (ja) * 2002-03-29 2003-10-15 Matsushita Electric Ind Co Ltd 液晶表示装置
JP2004004659A (ja) * 2002-03-28 2004-01-08 Matsushita Electric Ind Co Ltd 液晶表示装置
JP2006292966A (ja) * 2005-04-08 2006-10-26 Toshiba Matsushita Display Technology Co Ltd 液晶表示装置、及び液晶表示装置の駆動方法
JP2007155819A (ja) * 2005-11-30 2007-06-21 Toshiba Matsushita Display Technology Co Ltd 液晶表示装置および調光駆動方法

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2004004659A (ja) * 2002-03-28 2004-01-08 Matsushita Electric Ind Co Ltd 液晶表示装置
JP2003295156A (ja) * 2002-03-29 2003-10-15 Matsushita Electric Ind Co Ltd 液晶表示装置
JP2006292966A (ja) * 2005-04-08 2006-10-26 Toshiba Matsushita Display Technology Co Ltd 液晶表示装置、及び液晶表示装置の駆動方法
JP2007155819A (ja) * 2005-11-30 2007-06-21 Toshiba Matsushita Display Technology Co Ltd 液晶表示装置および調光駆動方法

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2011136018A1 (fr) * 2010-04-28 2011-11-03 Semiconductor Energy Laboratory Co., Ltd. Dispositif d'affichage à cristaux liquides et appareil électronique
US9019320B2 (en) 2010-04-28 2015-04-28 Semiconductor Energy Laboratory Co., Ltd. Liquid crystal display device and electronic appliance

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