JP4337447B2 - フラットディスプレイ装置及び集積回路 - Google Patents
フラットディスプレイ装置及び集積回路 Download PDFInfo
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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
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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
- G09G3/3696—Generation of voltages supplied to electrode drivers
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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
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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
- G09G3/3685—Details of drivers for data electrodes
- G09G3/3688—Details of drivers for data electrodes suitable for active matrices only
-
- 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
- G09G2300/04—Structural and physical details of display devices
- G09G2300/0404—Matrix technologies
- G09G2300/0408—Integration of the drivers onto the display substrate
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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
- G09G2300/0876—Supplementary capacities in pixels having special driving circuits and electrodes instead of being connected to common electrode or ground; Use of additional capacitively coupled compensation 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
- G09G2310/00—Command of the display device
- G09G2310/02—Addressing, scanning or driving the display screen or processing steps related thereto
- G09G2310/0264—Details of driving circuits
- G09G2310/027—Details of drivers for data electrodes, the drivers handling digital grey scale data, e.g. use of D/A converters
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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
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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
-
- 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
- G09G3/3648—Control of matrices with row and column drivers using an active matrix
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- Computer Hardware Design (AREA)
- General Physics & Mathematics (AREA)
- Theoretical Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- Control Of Indicators Other Than Cathode Ray Tubes (AREA)
- Liquid Crystal Display Device Control (AREA)
- Liquid Crystal (AREA)
- Semiconductor Integrated Circuits (AREA)
Description
図2は、本発明の実施例1に係る液晶表示装置を示すブロック図である。この液晶表示装置11においては、液晶セル12、この液晶セル12のスイッチング素子であるポリシリコンTFT13、保持容量14とにより画素が形成され、この画素をマトリックス状に配置して表示部16が形成される。液晶表示装置11は、この表示部16を形成する各画素が、信号線LS及びゲート線LGによりそれぞれ水平駆動回路17及び垂直駆動回路18に接続され、垂直駆動回路18によるゲート線LGの駆動により順次画素を選択して水平駆動回路17からの駆動信号により各画素の階調を設定することにより、所望する画像を表示するようになされている。
以上の構成において、この液晶表示装置11では(図2)、描画に係るコントローラ等から各画素の階調を指示する階調データD1がラスタ走査順に入力され、この階調データD1が水平駆動回路17のシフトレジスタ20により順次サンプリングされてライン単位でまとめられ、ディジタルアナログ変換回路21に転送される。階調データD1は、このディジタルアナログ変換回路21におけるディジタルアナログ変換処理によりアナログ信号に変換され、このアナログ信号により表示部16の各信号線LSが駆動される。これにより液晶表示装置11では、垂直駆動回路18によるゲート線LGの制御により順次選択されてなる表示部16の各画素が、水平駆動回路17により駆動されて階調データD1による画像が表示部16に表示される。
以上の構成によれば、電源電圧が高い側の回路ブロックからの処理結果を相補的にオンオフ動作するアクティブ素子により電源電圧の低い側に入力し、この高い側の電源電圧の立ち下がりによりこのアクティブ素子の出力を所定レベルに設定することにより、ディープスタンバイモードにおいて、一段と消費電力を少なくすることができる。
なお上述の実施例においては、バッファ回路において、最終段のインバータの電源電圧を3〔V〕に切り換え、このインバータ入力をレベル設定回路により設定する場合について述べたが、本発明はこれに限らず、例えばこのインバータ出力のレベルを直接レベル設定回路により設定する場合等、レベル設定方法にあっては種々の手法を適用することができる。
Claims (6)
- マトリックス状に画素を配置してなる表示部と、前記表示部を駆動する駆動回路とを有するフラットディスプレイ装置において、
前記駆動回路は、
第1の電源電圧により動作する第1の回路ブロックと、前記第1の回路ブロックによる出力信号を処理して前記表示部に出力する出力電圧を切り換える第2の回路ブロックであって、前記第1の電源電圧より低い第2の電源電圧により動作する第2の回路ブロックとを有し、
前記第2の回路ブロックは、
相補的にオンオフ動作するアクティブ素子を、前記第1の回路ブロックの1つの出力信号で制御して前記出力電圧を切り換え、
前記第1の回路ブロックは、
前記第1の電源電圧の立ち下がりにより、前記1つの出力信号のレベルを設定して前記出力電圧を所定電圧に設定するレベル設定回路を有し、
さらに前記第1の回路ブロックは、
前記第1の電源電圧により動作して、前記1つの出力信号の反転信号に対応する信号を出力する第1のインバータと、
前記第1のインバータの出力信号を入力して前記1つの出力信号を前記第2の回路ブロックに出力する第2のインバータと、
前記第1の電源電圧の立ち下がりにより、前記第2のインバータの電源電圧を前記第1の電源電圧から前記第2の電源電圧に切り換える電源切り換え回路とを有し、
前記レベル設定回路は、
前記第1の電源電圧の立ち下がりに連動して前記第2のインバータの入力レベルを0レベルに設定し、前記1つの出力信号のレベルを設定する
フラットディスプレイ装置。 - 前記第2の回路ブロックが、
生成基準電圧を抵抗ブロックにより抵抗分圧して複数の基準電圧を生成する基準電圧発生回路と、
前記画素の階調を示す階調データに応じて、前記複数の基準電圧を選択出力する基準電圧セレクタを有し、
前記相補的にオンオフ動作するアクティブ素子が、
出力を前記抵抗ブロックに出力して、前記1つの出力信号により前記抵抗ブロックの端子電圧を切り換えることにより、前記生成基準電圧の極性を切り換えるスイッチ回路のアクティブ素子である
請求項1に記載のフラットディスプレイ装置。 - 前記第2の回路ブロックが、
前記画素に設けられた保持容量の電極電位を切り換える駆動回路であり、
前記相補的にオンオフ動作するアクティブ素子が、
出力を前記保持容量に出力して、前記1つの出力信号により前記電極電位を切り換えるアクティブ素子である
請求項1に記載のフラットディスプレイ装置。 - 前記第2の回路ブロックが、
前記画素の液晶セルの電極電位を切り換える駆動回路であり、
前記相補的にオンオフ動作するアクティブ素子が、
出力を前記液晶セルに出力して、前記1つの出力信号により前記電極電位を切り換えるアクティブ素子である
請求項1に記載のフラットディスプレイ装置。 - 前記第2の電源電圧による電源より、前記第1の電源電圧による電源を生成する電源回路を有し、
前記第2の電源電圧による電源が、外部より供給される電源である
請求項1に記載のフラットディスプレイ装置。 - 第1の電源電圧により動作する第1の回路ブロックと、前記第1の回路ブロックによる出力信号を処理して出力電圧を切り換える第2の回路ブロックであって、前記第1の電源電圧より低い第2の電源電圧により動作する第2の回路ブロックとを有してなる集積回路であって、
前記第2の回路ブロックは、
相補的にオンオフ動作するアクティブ素子を、前記第1の回路ブロックの1つの出力信号で制御して前記出力電圧を切り換え、
前記第1の回路ブロックは、
前記第1の電源電圧の立ち下がりにより、前記1つの出力信号のレベルを設定して前記出力電圧を所定電圧に設定するレベル設定回路を有し、
さらに前記第1の回路ブロックは、
前記第1の電源電圧により動作して、前記1つの出力信号の反転信号に対応する信号を出力する第1のインバータと、
前記第1のインバータの出力信号を入力して前記1つの出力信号を前記第2の回路ブロックに出力する第2のインバータと、
前記第1の電源電圧の立ち下がりにより、前記第2のインバータの電源電圧を前記第1の電源電圧から前記第2の電源電圧に切り換える電源切り換え回路とを有し、
前記レベル設定回路は、
前記第1の電源電圧の立ち下がりに連動して前記第2のインバータの入力レベルを0レベルに設定し、前記1つの出力信号のレベルを設定する
集積回路。
Priority Applications (7)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2003272250A JP4337447B2 (ja) | 2003-07-09 | 2003-07-09 | フラットディスプレイ装置及び集積回路 |
PCT/JP2004/009905 WO2005006302A1 (ja) | 2003-07-09 | 2004-07-06 | フラットディスプレイ装置及び集積回路 |
CNB200480025854XA CN100508005C (zh) | 2003-07-09 | 2004-07-06 | 平板显示装置和集成电路 |
KR1020067000176A KR101045904B1 (ko) | 2003-07-09 | 2004-07-06 | 평판 디스플레이 장치 및 집적회로 |
EP04747373A EP1646034A4 (en) | 2003-07-09 | 2004-07-06 | FLAT DISPLAY SETUP AND INTEGRATED CIRCUIT |
US10/563,298 US7696989B2 (en) | 2003-07-09 | 2004-07-06 | Flat display apparatus and integrated circuit |
TW093120667A TWI289289B (en) | 2003-07-09 | 2004-07-09 | Plat display device and integrated circuit |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
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JP2003272250A JP4337447B2 (ja) | 2003-07-09 | 2003-07-09 | フラットディスプレイ装置及び集積回路 |
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Publication Number | Publication Date |
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JP2005031501A JP2005031501A (ja) | 2005-02-03 |
JP2005031501A5 JP2005031501A5 (ja) | 2006-07-27 |
JP4337447B2 true JP4337447B2 (ja) | 2009-09-30 |
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JP2003272250A Expired - Lifetime JP4337447B2 (ja) | 2003-07-09 | 2003-07-09 | フラットディスプレイ装置及び集積回路 |
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Country | Link |
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US (1) | US7696989B2 (ja) |
EP (1) | EP1646034A4 (ja) |
JP (1) | JP4337447B2 (ja) |
KR (1) | KR101045904B1 (ja) |
CN (1) | CN100508005C (ja) |
TW (1) | TWI289289B (ja) |
WO (1) | WO2005006302A1 (ja) |
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KR101061631B1 (ko) * | 2004-03-30 | 2011-09-01 | 엘지디스플레이 주식회사 | 액정표시장치의 구동장치 및 방법 |
TWI383353B (zh) * | 2007-12-27 | 2013-01-21 | Chimei Innolux Corp | 平面顯示器及其驅動方法 |
WO2009084270A1 (ja) * | 2007-12-28 | 2009-07-09 | Sharp Kabushiki Kaisha | 補助容量配線駆動回路および表示装置 |
CN101878592B (zh) | 2007-12-28 | 2012-11-07 | 夏普株式会社 | 半导体装置和显示装置 |
WO2009084269A1 (ja) * | 2007-12-28 | 2009-07-09 | Sharp Kabushiki Kaisha | 半導体装置及び表示装置 |
US8547368B2 (en) * | 2007-12-28 | 2013-10-01 | Sharp Kabushiki Kaisha | Display driving circuit having a memory circuit, display device, and display driving method |
US20100315405A1 (en) * | 2008-04-16 | 2010-12-16 | Noriyuki Tanaka | Driving circuit for liquid crystal display device |
FR2930891B1 (fr) * | 2008-05-06 | 2010-09-24 | Biocodex | Composes anti-amnesiants et compositions pharmaceutiques les comprenant |
TWI396175B (zh) * | 2008-10-15 | 2013-05-11 | Raydium Semiconductor Corp | 源極驅動裝置 |
KR102300316B1 (ko) * | 2014-03-06 | 2021-09-10 | 삼성디스플레이 주식회사 | 대기 전력 제어 장치, 이를 포함하는 액정 표시 장치 및 대기 전력 제어 방법 |
KR102554201B1 (ko) * | 2018-09-20 | 2023-07-12 | 주식회사 디비하이텍 | 디스플레이 드라이버 ic 및 이를 포함하는 디스플레이 장치 |
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JPH02210492A (ja) * | 1989-02-10 | 1990-08-21 | Matsushita Electric Ind Co Ltd | 液晶表示駆動装置 |
JPH07271323A (ja) * | 1994-03-31 | 1995-10-20 | Hitachi Ltd | 液晶表示装置 |
JPH10210116A (ja) | 1997-01-17 | 1998-08-07 | Nippon Denki Ido Tsushin Kk | 携帯電話機 |
JP2000321642A (ja) * | 1999-05-12 | 2000-11-24 | Fuji Photo Film Co Ltd | 電源装置 |
JP2001083944A (ja) * | 1999-09-10 | 2001-03-30 | Nec Ic Microcomput Syst Ltd | 液晶表示装置 |
JP2001282164A (ja) * | 2000-03-31 | 2001-10-12 | Sanyo Electric Co Ltd | 表示装置用駆動装置 |
JP4062876B2 (ja) * | 2000-12-06 | 2008-03-19 | ソニー株式会社 | アクティブマトリクス型表示装置およびこれを用いた携帯端末 |
-
2003
- 2003-07-09 JP JP2003272250A patent/JP4337447B2/ja not_active Expired - Lifetime
-
2004
- 2004-07-06 EP EP04747373A patent/EP1646034A4/en not_active Withdrawn
- 2004-07-06 KR KR1020067000176A patent/KR101045904B1/ko active IP Right Grant
- 2004-07-06 US US10/563,298 patent/US7696989B2/en active Active
- 2004-07-06 WO PCT/JP2004/009905 patent/WO2005006302A1/ja active Application Filing
- 2004-07-06 CN CNB200480025854XA patent/CN100508005C/zh not_active Expired - Lifetime
- 2004-07-09 TW TW093120667A patent/TWI289289B/zh active
Also Published As
Publication number | Publication date |
---|---|
EP1646034A4 (en) | 2008-12-24 |
KR20060034684A (ko) | 2006-04-24 |
US7696989B2 (en) | 2010-04-13 |
CN1849645A (zh) | 2006-10-18 |
TWI289289B (en) | 2007-11-01 |
WO2005006302A1 (ja) | 2005-01-20 |
US20070109288A1 (en) | 2007-05-17 |
KR101045904B1 (ko) | 2011-07-01 |
TW200518020A (en) | 2005-06-01 |
EP1646034A1 (en) | 2006-04-12 |
CN100508005C (zh) | 2009-07-01 |
JP2005031501A (ja) | 2005-02-03 |
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