WO2009078204A1 - 対向電極駆動回路および対向電極駆動方法 - Google Patents

対向電極駆動回路および対向電極駆動方法 Download PDF

Info

Publication number
WO2009078204A1
WO2009078204A1 PCT/JP2008/065695 JP2008065695W WO2009078204A1 WO 2009078204 A1 WO2009078204 A1 WO 2009078204A1 JP 2008065695 W JP2008065695 W JP 2008065695W WO 2009078204 A1 WO2009078204 A1 WO 2009078204A1
Authority
WO
WIPO (PCT)
Prior art keywords
counter electrode
voltage
drive circuit
amplifier
driving method
Prior art date
Application number
PCT/JP2008/065695
Other languages
English (en)
French (fr)
Inventor
Kohji Ogata
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 US12/734,989 priority Critical patent/US20100253663A1/en
Priority to CN200880121191XA priority patent/CN101896960B/zh
Publication of WO2009078204A1 publication Critical patent/WO2009078204A1/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
    • G09G3/36—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
    • G09G3/3655—Details of drivers for counter electrodes, e.g. common electrodes for pixel capacitors or supplementary storage capacitors
    • 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
    • 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
    • G09G3/3614—Control of polarity reversal in general

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (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 Display Device Control (AREA)
  • Control Of Indicators Other Than Cathode Ray Tubes (AREA)
  • Liquid Crystal (AREA)

Abstract

　本発明の対向電極駆動回路は、対向電極に印加する電圧を生成するアンプ(３)と、前記対向電極に印加する電圧波形における立上り時および立下り時に対向電極に印加する電圧と２つの閾値電圧との大小を検出する電圧検出部(１)と、対向電極に印加する電圧が大きい方の第１閾値電圧よりも大きい場合にアンプ(３)の能力を下げ、かつ、対向電極に印加する電圧が小さい方の第２閾値電圧よりも小さい場合にアンプ(３)の能力を下げるクロック生成部(２)と、を備えている。これにより、消費電力を抑えつつ、液晶表示装置の音鳴りを無くした対向電極駆動回路を提供する。
PCT/JP2008/065695 2007-12-14 2008-09-01 対向電極駆動回路および対向電極駆動方法 WO2009078204A1 (ja)

Priority Applications (2)

Application Number Priority Date Filing Date Title
US12/734,989 US20100253663A1 (en) 2007-12-14 2008-09-01 Counter electrode drive circuit and counter electrode driving method
CN200880121191XA CN101896960B (zh) 2007-12-14 2008-09-01 对电极驱动电路以及对电极驱动方法

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2007-323765 2007-12-14
JP2007323765 2007-12-14

Publications (1)

Publication Number Publication Date
WO2009078204A1 true WO2009078204A1 (ja) 2009-06-25

Family

ID=40795323

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP2008/065695 WO2009078204A1 (ja) 2007-12-14 2008-09-01 対向電極駆動回路および対向電極駆動方法

Country Status (3)

Country Link
US (1) US20100253663A1 (ja)
CN (1) CN101896960B (ja)
WO (1) WO2009078204A1 (ja)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9585709B2 (en) * 2010-02-05 2017-03-07 Covidien Lp Square wave for vessel sealing
CN105223713B (zh) * 2015-09-09 2018-05-25 深圳市华星光电技术有限公司 保护电路及具有该保护电路的液晶显示器

Citations (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS63249895A (ja) * 1987-04-07 1988-10-17 シャープ株式会社 Ｅｌデイスプレイの駆動回路
WO1996037803A1 (fr) * 1995-05-23 1996-11-28 International Business Machines Corporation Dispositif de commande d'electrode commune dans un affichage a cristaux liquides
JP2003228347A (ja) * 2001-11-28 2003-08-15 Toshiba Corp 表示装置およびその駆動方法
JP2005234139A (ja) * 2004-02-18 2005-09-02 Sharp Corp 液晶表示装置及びその駆動方法
JP2005315925A (ja) * 2004-04-27 2005-11-10 Sharp Corp 表示装置およびそれを備える電子機器
JP2006023645A (ja) * 2004-07-09 2006-01-26 Sharp Corp 表示装置およびその駆動方法
JP2006023352A (ja) * 2004-07-06 2006-01-26 Optrex Corp 液晶表示装置の駆動方法
JP2006023576A (ja) * 2004-07-08 2006-01-26 Sharp Corp 液晶表示装置
JP2006065231A (ja) * 2004-08-30 2006-03-09 Sharp Corp 表示装置およびその駆動方法
JP2008015295A (ja) * 2006-07-07 2008-01-24 Epson Imaging Devices Corp 電気光学装置及び電気光学装置の駆動方法並びに電気機器
JP2008040195A (ja) * 2006-08-08 2008-02-21 Seiko Epson Corp 対向電極電圧生成回路、ソースドライバ、電気光学装置及び電子機器

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3583356B2 (ja) * 1999-09-06 2004-11-04 シャープ株式会社 アクティブマトリクス型の液晶表示装置およびデータ信号線駆動回路、並びに、液晶表示装置の駆動方法
US7321353B2 (en) * 2000-04-28 2008-01-22 Sharp Kabushiki Kaisha Display device method of driving same and electronic device mounting same
JP3858590B2 (ja) * 2000-11-30 2006-12-13 株式会社日立製作所 液晶表示装置及び液晶表示装置の駆動方法
JP4356616B2 (ja) * 2005-01-20 2009-11-04 セイコーエプソン株式会社 電源回路、表示ドライバ、電気光学装置、電子機器及び電源回路の制御方法
US20070097054A1 (en) * 2005-10-28 2007-05-03 Jung-Chieh Cheng Method for driving a thin film transistor liquid crystal display
US20080143697A1 (en) * 2006-12-13 2008-06-19 Tomokazu Kojima Drive voltage control device

Patent Citations (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS63249895A (ja) * 1987-04-07 1988-10-17 シャープ株式会社 Ｅｌデイスプレイの駆動回路
WO1996037803A1 (fr) * 1995-05-23 1996-11-28 International Business Machines Corporation Dispositif de commande d'electrode commune dans un affichage a cristaux liquides
JP2003228347A (ja) * 2001-11-28 2003-08-15 Toshiba Corp 表示装置およびその駆動方法
JP2005234139A (ja) * 2004-02-18 2005-09-02 Sharp Corp 液晶表示装置及びその駆動方法
JP2005315925A (ja) * 2004-04-27 2005-11-10 Sharp Corp 表示装置およびそれを備える電子機器
JP2006023352A (ja) * 2004-07-06 2006-01-26 Optrex Corp 液晶表示装置の駆動方法
JP2006023576A (ja) * 2004-07-08 2006-01-26 Sharp Corp 液晶表示装置
JP2006023645A (ja) * 2004-07-09 2006-01-26 Sharp Corp 表示装置およびその駆動方法
JP2006065231A (ja) * 2004-08-30 2006-03-09 Sharp Corp 表示装置およびその駆動方法
JP2008015295A (ja) * 2006-07-07 2008-01-24 Epson Imaging Devices Corp 電気光学装置及び電気光学装置の駆動方法並びに電気機器
JP2008040195A (ja) * 2006-08-08 2008-02-21 Seiko Epson Corp 対向電極電圧生成回路、ソースドライバ、電気光学装置及び電子機器

Also Published As

Publication number Publication date
US20100253663A1 (en) 2010-10-07
CN101896960A (zh) 2010-11-24
CN101896960B (zh) 2013-03-13

Similar Documents

Publication Publication Date Title
TW200701144A (en) Method and apparatus for driving liquid crystal display device
EP1566793A4 (en) CURRENT CONTROL CIRCUIT AND DISPLAY DEVICE USING THE SAME
TW200614146A (en) Pixel circuit, active matrix apparatus and display apparatus
WO2008108353A1 (ja) 液晶駆動装置及びこれを用いた液晶表示装置
TW200609581A (en) Driving apparatus and method for optical display device
TW200701177A (en) Liquid crystal display and corresponding driving method
WO2005052653A3 (en) Electro-optic displays, and driving methods
RU2011111270A (ru) Устройство отображения
WO2008114479A1 (ja) 液晶表示装置およびその駆動方法
TW200739507A (en) Liquid crystal display device
TW200609864A (en) Liquid crystal display device and method of driving liquid crystal display device
TW200614136A (en) Gate driving method and circuit for liquid crystal display
EP1764775A3 (en) Electrophoretic display device, drive device, and drive method
KR102009892B1 (ko) 액정표시장치
TW200715016A (en) Liquid crystal display and method thereof
EP2560156A4 (en) DRIVE PROCESSES FOR CONVENTIONAL ELECTRODES, CIRCUITS, AND LIQUID CRYSTAL DISPLAYS FOR THIS
JP2008052252A (ja) 電気泳動表示パネルの駆動方法並びに駆動装置、電気泳動表示装置、および電子機器
TW200622995A (en) Liquid crystal display and driving method
TW201129849A (en) LCD display visual enhancement driving circuit and method
TW200509041A (en) Liquid crystal display device, method of turning-off same, program and recording medium
TWI268471B (en) Driving circuit of liquid crystal display
AU2002330337A1 (en) A ocb mode liquid crystal display and a driving method of the same
TW200632828A (en) Cholesteric liquid crystal display apparatus and method for driving cholesteric liquid crystal display device
WO2009078204A1 (ja) 対向電極駆動回路および対向電極駆動方法
WO2009031391A1 (ja) 液晶表示装置の駆動方法、及び、液晶表示装置

Legal Events

Date Code Title Description
WWE Wipo information: entry into national phase

Ref document number: 200880121191.X

Country of ref document: CN

121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 08863213

Country of ref document: EP

Kind code of ref document: A1

WWE Wipo information: entry into national phase

Ref document number: 12734989

Country of ref document: US

NENP Non-entry into the national phase

Ref country code: DE

122 Ep: pct application non-entry in european phase

Ref document number: 08863213

Country of ref document: EP

Kind code of ref document: A1

NENP Non-entry into the national phase

Ref country code: JP