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

Dispositif d'affichage à cristaux liquides Download PDF

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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
Application number
PCT/JP2011/006580
Other languages
English (en)
Japanese (ja)
Inventor
小川　康行
山本　薫
Original Assignee
シャープ株式会社
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 シャープ株式会社 filed Critical シャープ株式会社
Publication of WO2012073467A1 publication Critical patent/WO2012073467A1/fr

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    • 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.

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  • 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 WO2012073467A1 (fr)

Applications Claiming Priority (2)

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

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