JPWO2011033813A1 - 表示装置および表示装置の駆動方法 - Google Patents
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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
- G09G3/3648—Control of matrices with row and column drivers using an active matrix
- G09G3/3659—Control of matrices with row and column drivers using an active matrix the addressing of the pixel involving the control of two or more scan electrodes or two or more data electrodes, e.g. pixel voltage dependant on signal of two data electrodes
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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
- G09G3/3607—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 for displaying colours or for displaying grey scales with a specific pixel layout, e.g. using sub-pixels
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- G—PHYSICS
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- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G2300/00—Aspects of the constitution of display devices
- G09G2300/08—Active matrix structure, i.e. with use of active elements, inclusive of non-linear two terminal elements, in the pixels together with light emitting or modulating elements
- G09G2300/0809—Several active elements per pixel in active matrix panels
- G09G2300/0814—Several active elements per pixel in active matrix panels used for selection purposes, e.g. logical AND for partial update
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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
- G09G2300/00—Aspects of the constitution of display devices
- G09G2300/08—Active matrix structure, i.e. with use of active elements, inclusive of non-linear two terminal elements, in the pixels together with light emitting or modulating elements
- G09G2300/0809—Several active elements per pixel in active matrix panels
- G09G2300/0823—Several active elements per pixel in active matrix panels used to establish symmetry in driving, e.g. with polarity inversion
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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
- G09G2300/00—Aspects of the constitution of display devices
- G09G2300/08—Active matrix structure, i.e. with use of active elements, inclusive of non-linear two terminal elements, in the pixels together with light emitting or modulating elements
- G09G2300/0809—Several active elements per pixel in active matrix panels
- G09G2300/0842—Several active elements per pixel in active matrix panels forming a memory circuit, e.g. a dynamic memory with one capacitor
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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
- G09G2300/00—Aspects of the constitution of display devices
- G09G2300/08—Active matrix structure, i.e. with use of active elements, inclusive of non-linear two terminal elements, in the pixels together with light emitting or modulating elements
- G09G2300/0809—Several active elements per pixel in active matrix panels
- G09G2300/0842—Several active elements per pixel in active matrix panels forming a memory circuit, e.g. a dynamic memory with one capacitor
- G09G2300/0852—Several active elements per pixel in active matrix panels forming a memory circuit, e.g. a dynamic memory with one capacitor being a dynamic memory with more than one capacitor
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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
- G09G2300/00—Aspects of the constitution of display devices
- G09G2300/08—Active matrix structure, i.e. with use of active elements, inclusive of non-linear two terminal elements, in the pixels together with light emitting or modulating elements
- G09G2300/0809—Several active elements per pixel in active matrix panels
- G09G2300/0842—Several active elements per pixel in active matrix panels forming a memory circuit, e.g. a dynamic memory with one capacitor
- G09G2300/0861—Several active elements per pixel in active matrix panels forming a memory circuit, e.g. a dynamic memory with one capacitor with additional control of the display period without amending the charge stored in a pixel memory, e.g. by means of additional select electrodes
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- G—PHYSICS
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- 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
- G09G2320/0219—Reducing feedthrough effects in active matrix panels, i.e. voltage changes on the scan electrode influencing the pixel voltage due to capacitive coupling
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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
- 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
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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
- 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
- G09G2330/022—Power management, e.g. power saving in absence of operation, e.g. no data being entered during a predetermined time
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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
- G09G3/3614—Control of polarity reversal in general
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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
- G09G3/3618—Control of matrices with row and column drivers with automatic refresh of the display panel using sense/write circuits
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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
- G09G3/3648—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
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- Liquid Crystal Display Device Control (AREA)
- Control Of Indicators Other Than Cathode Ray Tubes (AREA)
- Liquid Crystal (AREA)
Abstract
Description
本発明の一実施形態について図面に基づいて説明すれば、以下の通りである。なお、本実施の形態において説明すること以外の構成は、前記背景技術と同じである。また、説明の便宜上、前記の背景技術の図面に示した部材と同一の機能を有する部材については、同一の符号を付し、その説明を省略する。
本発明の他の実施の形態について図面に基づいて説明すれば、以下の通りである。
を出力するとともに、ゲートドライバ/CSドライバ14に信号s2を、制御信号バッファ回路15に信号s3をそれぞれ出力する。
ステップAでは、駆動信号発生回路/映像信号発生回路12およびデマルチプレクサ13からソースラインSLに第1の電位のデータまたは第2の電位のデータを供給した状態、かつ、リフレッシュ出力制御部RS1に第2の動作を行わせた状態としてスイッチ回路SW1を導通させることにより画素メモリ20に上記データを書き込み、画素メモリ20に上記データが書き込まれた状態、かつ、リフレッシュ出力制御部RS1に第2の動作を行わせた状態としてデータ転送部TS1によって転送動作を行う。
ステップBでは、ステップAに続いて、リフレッシュ出力制御部RS1に第2の動作を行わせた状態、かつ、データ転送部TS1に非転送動作を行わせた状態としてスイッチ回路SW1を導通させることにより、リフレッシュ出力制御部RS1をアクティブ状態とする制御情報に相当するレベルと同じ電位のデータをソースラインSLを介して第1データ保持部DS1に入力する。
ステップCでは、ステップBに続いて、スイッチ回路SW1を遮断した状態、かつ、データ転送部TS1に非転送動作を行わせた状態としてリフレッシュ出力制御部RS1によって第1の動作を行うとともに、第1の動作の終了時には供給源VS1からリフレッシュ出力制御部RS1の入力にリフレッシュ出力制御部RS1をアクティブ状態とする制御情報に相当するレベルの反転レベルのデータを供給している状態とする。
ステップDでは、ステップCに続いて、スイッチ回路SW1を遮断した状態、かつ、リフレッシュ出力制御部RS1に第2の動作を行わせた状態としてデータ転送部TS1によって転送動作を行う。
11 画素アレイ
12 駆動信号発生回路/映像信号発生回路
13 デマルチプレクサ
14 ゲートドライバ/CSドライバ
15 制御信号バッファ回路
20 画素メモリ
MR1,MR100 メモリ回路
SW1,SW100 スイッチ回路(第1スイッチ回路)
TS1,TS100 データ転送部(リフレッシュ制御部、第2スイッチ回路)
RS1 リフレッシュ出力制御部(リフレッシュ制御部、制御部、第3スイッチ回路)
RS100 リフレッシュ出力制御部(リフレッシュ制御部、制御部)
DS1,DS101 第1データ保持部
DS2,DS102 第2データ保持部
VS1 供給源(電位供給源)
Ca1,Ca100 容量(第1容量)
Cb1,Cb100 容量(リフレッシュ制御部、第2容量)
COM 共通電極
Clc 液晶容量
PIX ノード(画素電極)
MRY ノード(リフレッシュ制御部、メモリ用電極)
N1,N2 トランジスタ
N3 トランジスタ(第1スイッチ)
N4 トランジスタ(第2スイッチ)
SL(j)(1≦j≦m),SLx ソースライン(データ信号線)
GL(i)(1≦i≦n),GLx ゲートライン(走査信号線)
DT(i)(1≦i≦n),DTx データ転送制御線(データ転送線)
RC(i)(1≦i≦n),RCx リフレッシュ出力制御線(リフレッシュ出力線)
CS(i)(1≦i≦n),CSx 補助容量線
Claims (9)
- メモリ回路がマトリクス状に設けられた表示パネルを備え、上記メモリ回路にフレームごとに書き込んだデータ信号電位により表示を行う通常モードと、上記メモリ回路に書き込んだデータ信号電位をリフレッシュしながら保持して表示を行うメモリモードとを有する表示装置であって、
上記表示パネルは、データ信号線と、走査信号線と、補助容量線と、共通電極とを備え、
上記メモリ回路は、画素電極と、上記走査信号線の電位に応じて上記データ信号線と上記画素電極との間の導通と遮断とを選択的に行う第1スイッチ回路と、上記画素電極と上記補助容量線との間に形成された第1容量と、上記画素電極の電位のリフレッシュを制御するリフレッシュ制御部とを含み、
上記共通電極と上記補助容量線とのそれぞれについて、上記通常モードと上記メモリモードとの切替に伴って電位を変化させる必要がある場合には、当該電位の変化は、上記データ信号線の電位を固定し、上記第1スイッチ回路を導通状態として上記メモリ回路の画素電極を当該データ信号線に電気的に接続している間に行われることを特徴とする表示装置。 - 上記電位の変化が行われるときに上記データ信号線に固定される電位は、上記共通電極の電位と同電位にされることを特徴とする請求項1に記載の表示装置。
- 上記表示パネルは、データ転送線と、リフレッシュ出力線とを備え、
上記リフレッシュ制御部は、メモリ用電極と、上記データ転送線の電位に応じて上記画素電極と上記メモリ用電極との間の導通と遮断とを選択的に行う第2スイッチ回路と、上記リフレッシュ出力線および上記メモリ用電極の電位に応じて上記画素電極の電位をリフレッシュするための電位を供給する制御部と、上記メモリ用電極と上記補助容量線との間に形成された第2容量とを含むことを特徴とする請求項1または2に記載の表示装置。 - 上記メモリ回路は、電位供給源をさらに備え、
上記制御部は、上記リフレッシュ出力線および上記メモリ用電極の電位に応じて上記電位供給源と上記画素電極との間の導通と遮断とを選択的に行う第3スイッチ回路であることを特徴とする請求項3に記載の表示装置。 - 上記第1容量の容量値は、上記第2容量の容量値よりも大きく、
上記第3スイッチ回路は、上記メモリ用電極に保持されている電位を導通遮断の制御信号とする第1スイッチと、上記リフレッシュ出力線の電位を導通遮断の制御信号とする第2スイッチとを備えており、
上記第1スイッチと上記第2スイッチとは、上記電位供給源に接続される当該第3スイッチ回路の入力と上記画素電極に接続される当該第3スイッチ回路の出力との間に、互いに直列に接続されていることを特徴とする請求項4に記載の表示装置。 - 上記第1スイッチ回路、上記第2スイッチ回路、上記第1スイッチ、および上記第2スイッチは、Nチャネル型の電界効果トランジスタであることを特徴とする請求項5に記載の表示装置。
- 上記第1スイッチ回路、上記第2スイッチ回路、上記第1スイッチ、および上記第2スイッチは、Pチャネル型の電界効果トランジスタであることを特徴とする請求項5に記載の表示装置。
- メモリ回路がマトリクス状に設けられた表示パネルを備え、上記メモリ回路にフレームごとに書き込んだデータ信号電位により表示を行う通常モードと、上記メモリ回路に書き込んだデータ信号電位をリフレッシュしながら保持して表示を行うメモリモードとを有する表示装置の駆動方法であって、
上記表示パネルは、データ信号線と、走査信号線と、補助容量線と、共通電極とを備え、
上記メモリ回路は、画素電極と、上記走査信号線の電位に応じて上記データ信号線と上記画素電極との間の導通と遮断とを選択的に行う第1スイッチ回路と、上記画素電極と上記補助容量線との間に形成された第1容量と、上記画素電極の電位のリフレッシュを制御するリフレッシュ制御部とを含み、
上記共通電極と上記補助容量線とのそれぞれについて、上記通常モードと上記メモリモードとの切替に伴って電位を変化させる必要がある場合には、当該電位の変化を、上記データ信号線の電位を固定し、上記第1スイッチ回路を導通状態として上記メモリ回路の画素電極を当該データ信号線に電気的に接続している間に行うことを特徴とする表示装置の駆動方法。 - 上記電位の変化を行うときに上記データ信号線に固定する電位を、上記共通電極の電位と同電位とすることを特徴とする請求項8に記載の表示装置の駆動方法。
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PCT/JP2010/057286 WO2011033813A1 (ja) | 2009-09-16 | 2010-04-23 | 表示装置および表示装置の駆動方法 |
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EP2477179A4 (en) * | 2009-09-07 | 2013-03-20 | Sharp Kk | PIXEL CIRCUIT AND DISPLAY DEVICE |
CN103918024B (zh) * | 2011-08-02 | 2016-08-17 | 夏普株式会社 | 液晶显示装置和辅助电容线的驱动方法 |
US9311867B2 (en) * | 2012-11-13 | 2016-04-12 | Apple Inc. | Devices and methods for reducing power consumption of a demultiplexer |
KR20160021942A (ko) * | 2014-08-18 | 2016-02-29 | 삼성디스플레이 주식회사 | 표시 장치 및 이의 구동 방법 |
JP2022085123A (ja) * | 2020-11-27 | 2022-06-08 | セイコーエプソン株式会社 | 回路装置及び電気光学装置 |
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TW494382B (en) * | 2000-03-22 | 2002-07-11 | Toshiba Corp | Display apparatus and driving method of display apparatus |
JP4754064B2 (ja) | 2000-12-06 | 2011-08-24 | エーユー オプトロニクス コーポレイション | 表示装置の駆動方法 |
JP2002229532A (ja) | 2000-11-30 | 2002-08-16 | Toshiba Corp | 液晶表示装置及び液晶表示装置の駆動方法 |
JP2003114651A (ja) * | 2001-10-03 | 2003-04-18 | Matsushita Electric Ind Co Ltd | 液晶表示装置および駆動方法 |
JP2004077742A (ja) * | 2002-08-16 | 2004-03-11 | Hitachi Ltd | 表示装置 |
JP4731239B2 (ja) | 2005-07-29 | 2011-07-20 | 株式会社 日立ディスプレイズ | 表示装置 |
CN101601081B (zh) * | 2007-03-16 | 2012-07-18 | 夏普株式会社 | 液晶显示装置及其驱动方法 |
US8547368B2 (en) * | 2007-12-28 | 2013-10-01 | Sharp Kabushiki Kaisha | Display driving circuit having a memory circuit, display device, and display driving method |
JP5206397B2 (ja) * | 2008-02-19 | 2013-06-12 | 株式会社Jvcケンウッド | 液晶表示装置及び液晶表示装置の駆動方法 |
WO2011033827A1 (ja) * | 2009-09-16 | 2011-03-24 | シャープ株式会社 | 液晶表示装置およびその駆動方法 |
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EP2479745A1 (en) | 2012-07-25 |
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WO2011033813A1 (ja) | 2011-03-24 |
US20120169690A1 (en) | 2012-07-05 |
US8743042B2 (en) | 2014-06-03 |
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