WO2008129922A1 - 液晶表示装置 - Google Patents

液晶表示装置 Download PDF

Info

Publication number
WO2008129922A1
WO2008129922A1 PCT/JP2008/055552 JP2008055552W WO2008129922A1 WO 2008129922 A1 WO2008129922 A1 WO 2008129922A1 JP 2008055552 W JP2008055552 W JP 2008055552W WO 2008129922 A1 WO2008129922 A1 WO 2008129922A1
Authority
WO
WIPO (PCT)
Prior art keywords
liquid crystal
crystal display
frame rate
display device
gsp
Prior art date
Application number
PCT/JP2008/055552
Other languages
English (en)
French (fr)
Inventor
Masayuki Murao
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 WO2008129922A1 publication Critical patent/WO2008129922A1/ja

Links

Classifications

    • GPHYSICS
    • G09EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09GARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G3/00Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
    • G09G3/20Control 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
    • G09G3/34Control 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
    • G09G3/36Control 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
    • G09G3/3611Control of matrices with row and column drivers
    • G09G3/3648Control of matrices with row and column drivers using an active matrix
    • GPHYSICS
    • G09EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09GARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G3/00Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
    • G09G3/20Control 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
    • G09G3/34Control 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
    • G09G3/3406Control of illumination source
    • GPHYSICS
    • G09EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09GARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G2310/00Command of the display device
    • G09G2310/06Details of flat display driving waveforms
    • G09G2310/061Details of flat display driving waveforms for resetting or blanking
    • G09G2310/063Waveforms for resetting the whole screen at once

Landscapes

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

Abstract

 フレームレートに応じて、バックライトの光源となる蛍光ランプの駆動周波数が最適な値に設定され得る液晶表示装置を提供する。液晶表示パネル(1)及びバックライト装置(10)を備える液晶表示装置を用いる。液晶表示パネル(1)は、アクティブマトリクス基板(2)、対向基板(3)、液晶層、ゲートドライバ(4)及びデータドライバ(6)を備え、ゲートドライバ(4)はゲートスタートパルス(GSP)が入力されると、水平方向に並ぶアクティブ素子毎にこれらを選択し、データドライバ(6)は、選択されたアクティブ素子にデータを入力する。バックライト装置(10)において、フレームレート検出部(13)は、GSPからフレームレートを検出する。インバータ駆動部(14)は、フレームレートに基づいて設定された周波数の駆動パルスを蛍光ランプ(11)に出力する。
PCT/JP2008/055552 2007-04-18 2008-03-25 液晶表示装置 WO2008129922A1 (ja)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2007109668 2007-04-18
JP2007-109668 2007-04-18

Publications (1)

Publication Number Publication Date
WO2008129922A1 true WO2008129922A1 (ja) 2008-10-30

Family

ID=39875450

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP2008/055552 WO2008129922A1 (ja) 2007-04-18 2008-03-25 液晶表示装置

Country Status (1)

Country Link
WO (1) WO2008129922A1 (ja)

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2000338487A (ja) * 1999-05-28 2000-12-08 Hitachi Ltd 液晶表示装置
JP2003075804A (ja) * 2001-08-24 2003-03-12 Samsung Electronics Co Ltd 液晶表示装置とその駆動方法
JP2003255913A (ja) * 2002-03-05 2003-09-10 Seiko Epson Corp 輝度制御装置およびモニタ装置

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2000338487A (ja) * 1999-05-28 2000-12-08 Hitachi Ltd 液晶表示装置
JP2003075804A (ja) * 2001-08-24 2003-03-12 Samsung Electronics Co Ltd 液晶表示装置とその駆動方法
JP2003255913A (ja) * 2002-03-05 2003-09-10 Seiko Epson Corp 輝度制御装置およびモニタ装置

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