JP5273769B2 - フラットパネルディスプレイの駆動回路 - Google Patents
フラットパネルディスプレイの駆動回路 Download PDFInfo
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- JP5273769B2 JP5273769B2 JP2008048781A JP2008048781A JP5273769B2 JP 5273769 B2 JP5273769 B2 JP 5273769B2 JP 2008048781 A JP2008048781 A JP 2008048781A JP 2008048781 A JP2008048781 A JP 2008048781A JP 5273769 B2 JP5273769 B2 JP 5273769B2
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- 238000012545 processing Methods 0.000 claims description 20
- 229920000371 poly(diallyldimethylammonium chloride) polymer Polymers 0.000 claims description 10
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- 238000003199 nucleic acid amplification method Methods 0.000 description 13
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- 239000004973 liquid crystal related substance Substances 0.000 description 9
- 238000000034 method Methods 0.000 description 8
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- 230000007274 generation of a signal involved in cell-cell signaling Effects 0.000 description 4
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- 230000005540 biological transmission Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 210000002858 crystal cell Anatomy 0.000 description 1
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- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
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- 238000012827 research and development Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 239000010409 thin film Substances 0.000 description 1
- 230000000007 visual effect Effects 0.000 description 1
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Classifications
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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
-
- 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
-
- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
- G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
-
- 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
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N9/00—Details of colour television systems
- H04N9/64—Circuits for processing colour signals
- H04N9/68—Circuits for processing colour signals for controlling the amplitude of colour signals, e.g. automatic chroma control circuits
- H04N9/69—Circuits for processing colour signals for controlling the amplitude of colour signals, e.g. automatic chroma control circuits for modifying the colour signals by gamma correction
-
- 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
- G09G2310/0243—Details of the generation of driving signals
- G09G2310/0248—Precharge or discharge of column electrodes before or after applying exact column voltages
-
- 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
-
- 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
- G09G2310/0281—Arrangement of scan or data electrode driver circuits at the periphery of a panel not inherent to a split matrix structure
-
- 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
- G09G2310/0297—Special arrangements with multiplexing or demultiplexing of display data in the drivers for data electrodes, in a pre-processing circuitry delivering display data to said drivers or in the matrix panel, e.g. multiplexing plural data signals to one D/A converter or demultiplexing the D/A converter output to multiple columns
-
- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- 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
- G09G2320/0223—Compensation for problems related to R-C delay and attenuation in electrodes of matrix panels, e.g. in gate electrodes or on-substrate video signal electrodes
-
- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- 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
- G09G2320/0271—Adjustment of the gradation levels within the range of the gradation scale, e.g. by redistribution or clipping
- G09G2320/0276—Adjustment of the gradation levels within the range of the gradation scale, e.g. by redistribution or clipping for the purpose of adaptation to the characteristics of a display device, i.e. gamma correction
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Crystallography & Structural Chemistry (AREA)
- Computer Hardware Design (AREA)
- Theoretical Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Nonlinear Science (AREA)
- Signal Processing (AREA)
- Mathematical Physics (AREA)
- Multimedia (AREA)
- Optics & Photonics (AREA)
- Control Of Indicators Other Than Cathode Ray Tubes (AREA)
- Liquid Crystal (AREA)
- Liquid Crystal Display Device Control (AREA)
Description
200 信号増幅部
300 極性反転スイッチ部
400 二重出力駆動部
Claims (5)
- 第1画面情報を受信して、正のガンマ値に変換する第1データ信号処理部(PDAC)と、
第2画面情報を受信して、負のガンマ値に変換する第2データ信号処理部(NDAC)と、
前記正のガンマ値と前記負のガンマ値を選択するスイッチ部と、
前記スイッチ部出力の前記負のガンマ値又は前記正のガンマ値を受信してフラットパネルディスプレイに提供する出力駆動回路と、
を備えたフラットパネルディスプレイの駆動回路において、
前記出力駆動回路は、複数の出力ドライバが配置され、該出力ドライバは前記スイッチ部から提供される前記正のガンマ値又は前記負のガンマ値を受信して、第1チャネルに対応する駆動信号を出力する第1出力ドライバと、
前記スイッチ部から前記第1チャネルに対応するガンマ値と逆の値を受信して、第2チャネルに対応する駆動信号を出力する第2出力ドライバとから構成され、
前記第1データ信号処理部(PDAC)から前記正のガンマ値を1の入力信号として受信し、前記第1出力ドライバ、又は第2出力ドライバからの出力を他の入力信号として受信して増幅する第1差動増幅器を有して、前記スイッチ部に伝達する第1信号増幅部と、
前記第2データ信号処理部(NDAC)から前記負のガンマ値を1の入力信号として受信し、前記第1出力ドライバ、又は第2出力ドライバからの出力を他の入力信号として受信して増幅する第2差動増幅器を有して、前記スイッチ部に伝達する第2信号増幅部と、
を備えることを特徴とするフラットパネルディスプレイの駆動回路。
- 前記スイッチ部が、
前記第1信号増幅部の出力を前記第1出力ドライバに伝達する第1スイッチと、
前記第1信号増幅部の出力を前記第2出力ドライバに伝達する第2スイッチと、
前記第2信号増幅部の出力を前記第1出力ドライバに伝達する第3スイッチと、
前記第2信号増幅部の出力を前記第2出力ドライバに伝達する第4スイッチと、
前記第1出力ドライバの出力を前記第1信号増幅部の入力としてフィードバックさせる第5スイッチと、
前記第1出力ドライバの出力を前記第2信号増幅部の入力としてフィードバックさせる第6スイッチと、
前記第2出力ドライバの出力を前記第1信号増幅部の入力としてフィードバックさせる第7スイッチと、
前記第2出力ドライバの出力を前記第2信号増幅部の入力としてフィードバックさせる第8スイッチと、
を備えることを特徴とする請求項1に記載のフラットパネルディスプレイの駆動回路。 - 前記第1信号増幅部が、PMOSトランジスタ又はNMOSトランジスタで構成される前記第1差動増幅器を備え、
前記第2信号増幅部が、PMOSトランジスタ又はNMOSトランジスタで構成される前記第2差動増幅器を備えることを特徴とする請求項1に記載のフラットパネルディスプレイの駆動回路。 - 前記第1信号増幅部が、
第1画面情報に対応する入力信号と、前記第1出力ドライバ又は第2出力ドライバの出力とを受信して、第1正のガンマ値を出力する前記第1差動増幅器と、
該第1差動増幅器の出力に応じて、前記第1画面情報に対応するチャネルに電荷を放電させることができる第2正のガンマ値を出力する信号出力部と、
を備えることを特徴とする請求項1に記載のフラットパネルディスプレイの駆動回路。 - 前記第2信号増幅部が、
第2画面情報に対応する入力信号と、前記第1出力ドライバ又は第2出力ドライバの出力とを受信して、第1負のガンマ値を出力する前記第2差動増幅器と、
該第2差動増幅器の出力に応じて、前記第2画面情報に対応するチャネルに電荷を放電させることができる第2負のガンマ値を出力する信号出力部と、
を備えることを特徴とする請求項1に記載のフラットパネルディスプレイの駆動回路。
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR10-2007-0020284 | 2007-02-28 | ||
KR1020070020284A KR100883030B1 (ko) | 2007-02-28 | 2007-02-28 | 평판 디스플레이의 구동 회로 및 방법 |
Publications (2)
Publication Number | Publication Date |
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JP2008217009A JP2008217009A (ja) | 2008-09-18 |
JP5273769B2 true JP5273769B2 (ja) | 2013-08-28 |
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JP2008048781A Active JP5273769B2 (ja) | 2007-02-28 | 2008-02-28 | フラットパネルディスプレイの駆動回路 |
Country Status (3)
Country | Link |
---|---|
US (1) | US8194023B2 (ja) |
JP (1) | JP5273769B2 (ja) |
KR (1) | KR100883030B1 (ja) |
Families Citing this family (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2009042428A (ja) * | 2007-08-08 | 2009-02-26 | Nec Electronics Corp | 増幅回路および表示装置 |
KR100893392B1 (ko) * | 2007-10-18 | 2009-04-17 | (주)엠씨테크놀로지 | 전압 증폭 출력 회로 및 이를 이용하는 액정 표시 장치의구동 장치 |
JP4466735B2 (ja) * | 2007-12-28 | 2010-05-26 | ソニー株式会社 | 信号線駆動回路および表示装置、並びに電子機器 |
KR100980347B1 (ko) * | 2008-09-05 | 2010-09-06 | 주식회사 실리콘웍스 | 디더링 스위치를 구비하는 증폭기 및 그 증폭기를 사용하는 디스플레이 구동회로 |
JP2010122510A (ja) * | 2008-11-20 | 2010-06-03 | Oki Semiconductor Co Ltd | オペアンプ及び表示パネルの駆動装置 |
KR101872993B1 (ko) * | 2011-03-28 | 2018-07-03 | 삼성디스플레이 주식회사 | 액정 표시 장치 |
TW201241815A (en) * | 2011-04-01 | 2012-10-16 | Fitipower Integrated Tech Inc | Source driver of LCD panel |
TWI451394B (zh) * | 2011-12-30 | 2014-09-01 | Orise Technology Co Ltd | 應用於顯示面板之控制裝置及其控制方法 |
KR102009647B1 (ko) * | 2012-09-13 | 2019-10-21 | 엘지디스플레이 주식회사 | 액정표시장치 및 그 구동방법 |
US10147371B2 (en) * | 2014-06-27 | 2018-12-04 | Lg Display Co., Ltd. | Display device having pixels with shared data lines |
KR102431351B1 (ko) * | 2017-09-13 | 2022-08-11 | 주식회사 디비하이텍 | 반전력 버퍼 증폭기 |
Family Cites Families (13)
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---|---|---|---|---|
JPH07130193A (ja) * | 1993-09-10 | 1995-05-19 | Toshiba Corp | バッファ回路及びこれを用いた液晶ディスプレイ装置 |
JP3056085B2 (ja) * | 1996-08-20 | 2000-06-26 | 日本電気株式会社 | マトリクス型液晶表示装置の駆動回路 |
JP3595153B2 (ja) * | 1998-03-03 | 2004-12-02 | 株式会社 日立ディスプレイズ | 液晶表示装置および映像信号線駆動手段 |
JP3317263B2 (ja) * | 1999-02-16 | 2002-08-26 | 日本電気株式会社 | 表示装置の駆動回路 |
JP3506235B2 (ja) * | 2000-08-18 | 2004-03-15 | シャープ株式会社 | 液晶表示装置の駆動装置および駆動方法 |
KR100366315B1 (ko) * | 2000-09-08 | 2002-12-31 | 주식회사 네오텍리서치 | 액정표시장치의 저전력 소스 구동회로 및 구동방법 |
KR100864917B1 (ko) * | 2001-11-03 | 2008-10-22 | 엘지디스플레이 주식회사 | 액정표시장치의 데이터 구동 장치 및 방법 |
JP3942595B2 (ja) * | 2004-01-13 | 2007-07-11 | 沖電気工業株式会社 | 液晶パネルの駆動回路 |
KR100622070B1 (ko) * | 2004-05-25 | 2006-09-08 | 주식회사 실리콘웍스 | 액정디스플레이 구동회로 및 구동 시스템 |
JP2006267999A (ja) * | 2005-02-28 | 2006-10-05 | Nec Electronics Corp | 駆動回路チップ及び表示装置 |
JP4731195B2 (ja) * | 2005-04-07 | 2011-07-20 | ルネサスエレクトロニクス株式会社 | 液晶表示装置、液晶ドライバ、及び液晶表示パネルの駆動方法 |
JP4840908B2 (ja) * | 2005-12-07 | 2011-12-21 | ルネサスエレクトロニクス株式会社 | 表示装置駆動回路 |
US20100033411A1 (en) * | 2008-08-05 | 2010-02-11 | Ching-Chung Lee | Source driver with plural-feedback-loop output buffer |
-
2007
- 2007-02-28 KR KR1020070020284A patent/KR100883030B1/ko active IP Right Grant
-
2008
- 2008-02-27 US US12/071,890 patent/US8194023B2/en active Active
- 2008-02-28 JP JP2008048781A patent/JP5273769B2/ja active Active
Also Published As
Publication number | Publication date |
---|---|
US20080204386A1 (en) | 2008-08-28 |
KR100883030B1 (ko) | 2009-02-09 |
US8194023B2 (en) | 2012-06-05 |
JP2008217009A (ja) | 2008-09-18 |
KR20080079810A (ko) | 2008-09-02 |
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