[go: up one dir, main page]

WO2012073467A1 - Dispositif d'affichage à cristaux liquides - Google Patents

Dispositif d'affichage à cristaux liquides Download PDF

Info

Publication number
WO2012073467A1
WO2012073467A1 PCT/JP2011/006580 JP2011006580W WO2012073467A1 WO 2012073467 A1 WO2012073467 A1 WO 2012073467A1 JP 2011006580 W JP2011006580 W JP 2011006580W WO 2012073467 A1 WO2012073467 A1 WO 2012073467A1
Authority
WO
WIPO (PCT)
Prior art keywords
liquid crystal
crystal display
scanning
display device
scanning line
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/JP2011/006580
Other languages
English (en)
Japanese (ja)
Inventor
小川　康行
山本　薫
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 WO2012073467A1 publication Critical patent/WO2012073467A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Images

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
    • G09G3/3674—Details of drivers for scan electrodes
    • G09G3/3677—Details of drivers for scan electrodes suitable for active matrices only

Definitions

  • the present disclosure relates to an active matrix liquid crystal display device.
  • the video signal voltage one line before is temporarily written to the pixel.
  • the video signal one line before has a reverse polarity, and it takes time to charge the pixel with the voltage to be originally written.
  • an object of the present invention is to provide a liquid crystal display device capable of charging pixels at high speed and improving display quality such as brightness and contrast even in a high-resolution panel having a high driving frequency.
  • the reference potential is substantially equal to an average value of the maximum value and the minimum value of the video signal and is substantially constant.
  • the scanning line is driven by a single driving circuit. With this configuration, the frame size of the liquid crystal display panel can be reduced.
  • FIG. 10 is a diagram showing a shift register used for realizing the scanning line driving circuit 922.
  • a signal at a terminal / node is referred to by the same reference numeral as that terminal / node.
  • the charging mechanism of the pixel 300 is the same as that of the embodiment described with reference to FIGS. As a result, this modification also has the effect of fast charging and noise reduction.

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 Display Device Control (AREA)
  • Liquid Crystal (AREA)
  • Control Of Indicators Other Than Cathode Ray Tubes (AREA)

Abstract

L'invention porte sur un dispositif d'affichage à cristaux liquides (100) qui comprend : un premier substrat (110) qui comprend des électrodes de pixel (202), des TFT (302) et des lignes de balayage (320) qui sont couplées aux grilles des TFT ; un second substrat (120) qui fait face au premier substrat (110) et comprend des lignes de signal (222) qui forment des angles droits avec les lignes de balayage (320) en vue plane ; et une couche de cristaux liquides. Les intervalles actifs respectifs d'impulsions appliquées aux lignes de balayage (320) sont plus longs qu'un intervalle horizontal du dispositif d'affichage à cristaux liquides (100), les TFT (302) sont dans des états débloqués avant que les signaux d'image correspondant aux TFT (302) respectifs ne soient appliqués aux lignes de signal (222), et le potentiel de référence est appliqué aux électrodes de pixel (202) par l'intermédiaire des TFT (302).
PCT/JP2011/006580 2010-12-02 2011-11-25 Dispositif d'affichage à cristaux liquides Ceased WO2012073467A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2010269357 2010-12-02
JP2010-269357 2010-12-02

Publications (1)

Publication Number Publication Date
WO2012073467A1 true WO2012073467A1 (fr) 2012-06-07

Family

ID=46171441

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP2011/006580 Ceased WO2012073467A1 (fr) 2010-12-02 2011-11-25 Dispositif d'affichage à cristaux liquides

Country Status (1)

Country Link
WO (1) WO2012073467A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9905312B2 (en) 2014-12-03 2018-02-27 Nlt Technologies, Ltd. Shift register circuit, gate driver and display apparatus
WO2018230456A1 (fr) * 2017-06-16 2018-12-20 シャープ株式会社 Dispositif d'affichage

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH04324418A (ja) * 1991-04-25 1992-11-13 Toshiba Corp アクティブマトリックス型表示装置用駆動回路
JP2002333639A (ja) * 2001-03-08 2002-11-22 Sharp Corp 液晶表示装置

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH04324418A (ja) * 1991-04-25 1992-11-13 Toshiba Corp アクティブマトリックス型表示装置用駆動回路
JP2002333639A (ja) * 2001-03-08 2002-11-22 Sharp Corp 液晶表示装置

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9905312B2 (en) 2014-12-03 2018-02-27 Nlt Technologies, Ltd. Shift register circuit, gate driver and display apparatus
WO2018230456A1 (fr) * 2017-06-16 2018-12-20 シャープ株式会社 Dispositif d'affichage

Similar Documents

Publication Publication Date Title
US10741139B2 (en) Goa circuit
US8400390B2 (en) Gate driving device and liquid crystal display having the same
CN101520998B (zh) 可改善画面闪烁的液晶显示器和相关驱动方法
US8952955B2 (en) Display driving circuit, display device and display driving method
US8749469B2 (en) Display device for reducing parasitic capacitance with a dummy scan line
US8248336B2 (en) Liquid crystal display device and operating method thereof
EP1096467A2 (fr) Registre à décalage et dispositif d'affichage d'images
US9035930B2 (en) Display device and driving method thereof
US9786243B2 (en) Gate driving circuit and display apparatus including the same
US20090027321A1 (en) Method of driving liquid crystal display device, liquid crystal display device, and portable electronic apparatus
CN101952875A (zh) 显示装置、显示装置的驱动方法、以及扫描信号线驱动电路
KR20070115422A (ko) 액정표시장치 및 그 구동방법
CN101517628B (zh) 显示装置以及该显示装置的驱动电路和驱动方法
US20070252803A1 (en) Liquid-crystal-device driving method, liquid crystal device, and electronic apparatus
US10395617B2 (en) Shift register circuit
US20200168170A1 (en) Liquid crystal display device and driving method thereof
WO2013018596A1 (fr) Methode d'alimentation de dispositif lcd et capacite auxiliaire
US8274500B2 (en) Liquid crystal display device
CN103843056B (zh) 显示装置及其驱动方法
JP2017040881A (ja) 駆動回路、表示装置及び駆動方法
CN108694919A (zh) 显示面板的驱动方法
CN108873531B (zh) 阵列基板及其驱动方法、液晶显示装置
JP3638737B2 (ja) アクティブマトリクス型液晶表示装置およびその駆動方法
KR101327839B1 (ko) 액정표시장치
WO2012073467A1 (fr) Dispositif d'affichage à cristaux liquides

Legal Events

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

Ref document number: 11845229

Country of ref document: EP

Kind code of ref document: A1

NENP Non-entry into the national phase

Ref country code: DE

122 Ep: pct application non-entry in european phase

Ref document number: 11845229

Country of ref document: EP

Kind code of ref document: A1

NENP Non-entry into the national phase

Ref country code: JP