KR100883030B1 - 평판 디스플레이의 구동 회로 및 방법 - Google Patents
평판 디스플레이의 구동 회로 및 방법 Download PDFInfo
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- KR100883030B1 KR100883030B1 KR1020070020284A KR20070020284A KR100883030B1 KR 100883030 B1 KR100883030 B1 KR 100883030B1 KR 1020070020284 A KR1020070020284 A KR 1020070020284A KR 20070020284 A KR20070020284 A KR 20070020284A KR 100883030 B1 KR100883030 B1 KR 100883030B1
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- 238000000034 method Methods 0.000 title claims description 13
- 238000007599 discharging Methods 0.000 claims description 4
- 239000004065 semiconductor Substances 0.000 abstract 1
- 238000012545 processing Methods 0.000 description 21
- 238000010586 diagram Methods 0.000 description 17
- 239000004973 liquid crystal related substance Substances 0.000 description 9
- 230000009977 dual effect Effects 0.000 description 6
- 229920000371 poly(diallyldimethylammonium chloride) polymer Polymers 0.000 description 6
- 230000003321 amplification Effects 0.000 description 5
- 238000003199 nucleic acid amplification method Methods 0.000 description 5
- 238000012937 correction Methods 0.000 description 3
- 238000012546 transfer Methods 0.000 description 3
- 238000005401 electroluminescence Methods 0.000 description 2
- 230000002238 attenuated effect Effects 0.000 description 1
- 210000002858 crystal cell Anatomy 0.000 description 1
- 230000005684 electric field Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 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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- 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
- G09G3/3614—Control of polarity reversal in general
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- 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
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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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- 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
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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
- G09G2310/0243—Details of the generation of driving signals
- G09G2310/0248—Precharge or discharge of column electrodes before or after applying exact column voltages
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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
- 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
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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
- G09G2310/0297—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
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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
- 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
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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
- 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
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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
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Crystallography & Structural Chemistry (AREA)
- Theoretical Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Computer Hardware Design (AREA)
- Nonlinear Science (AREA)
- Mathematical Physics (AREA)
- Optics & Photonics (AREA)
- Multimedia (AREA)
- Signal Processing (AREA)
- Control Of Indicators Other Than Cathode Ray Tubes (AREA)
- Liquid Crystal (AREA)
- Liquid Crystal Display Device Control (AREA)
Abstract
Description
Claims (10)
- 평판디스플레이에 표시될 제1 화면정보를 입력받아 파지티브 감마값으로 전환하여 제공하기 위한 제1 데이터 신호 처리부;상기 평판디스플레이에 표시될 제2 화면정보를 입력받아 네거티브 감마값으로 전환하여 제공하기 위한 제2 데이터 신호 처리부;상기 파지티브 감마값과 상기 네거티브 감마값중 어느 하나를 선택하여 전달하는 스위치부; 및상기 스위치부로부터 상기 네거티브 감마값 또는 상기 파지티브 감마값을 전달받아 상기 평판디스플레이로 제공하기 위한 출력드라이빙 회로를 구비하는 평판 디스플레이 구동회로.
- 제 1 항에 있어서,상기 제1 데이터 신호 처리부로부터 상기 파지티브 감마값을 전달받아 증폭하여 상기 스위치부로 전달하기 위한 제1 신호증폭부와 상기 제2 데이터 신호 처리부로부터 네거티브 감마값을 전달받아 상기 스위치부로 전달하기 위한 제2 신호증폭부를 구비하는 것을 특징으로 하는 평판 디스플레이 구동회로.
- 제 2 항에 있어서,상기 제1 신호증폭부와 상기 제2 신호증폭부는 차동입력을 받아 신호를 증폭하는 차동증폭회로를 구비하는 것을 특징으로 하는 평판 디스플레이 구동회로.
- 제 3 항에 있어서,상기 출력드라이빙 회로는상기 스위치부로부터 제공되는 상기 파지티브 감마값 또는 상기 네거티브 감마값을 입력받아 제1 채널에 대응하는 드라이빙 신호를 출력하기 위한 제1 출력드라이버; 및상기 스위치부로 부터 상기 제1 출력드라이버가 전달받은 값과 반대의 감마값을 입력받아 제2 채널에 대응하는 드라이빙 신호를 출력하기 위한 제2출력드라이버를 구비하는 것을 특징으로 하는 평판 디스플레이 구동회로.
- 제 4 항에 있어서,상기 스위치부는상기 제1 신호증폭부의 출력을 상기 제1 출력드라이버로 전달하기 위한 제1 스위치;상기 제1 신호증폭부의 출력을 상기 제2 출력드라이버로 전달하기 위한 제2 스위치;상기 제2 신호증폭부의 출력을 상기 제1 출력드라이버로 전달하기 위한 제3 스위치;상기 제2 신호증폭부의 출력을 상기 제2 출력드라이버로 전달하기 위한 제4 스위치;상기 제1 출력드라이버의 출력을 상기 제1 신호증폭부의 입력으로 피드백시키기 위한 제5 스위치;상기 제1 출력드라이버의 출력을 상기 제2 신호증폭부의 입력으로 피드백시키기 위한 제6 스위치;상기 제2 출력드라이버의 출력을 상기 제1 신호증폭부의 입력으로 피드백시키기 위한 제7 스위치; 및상기 제2 출력드라이버의 출력을 상기 제2 신호증폭부의 입력으로 피드백시키기 위한 제8 스위치를 구비하는 것을 특징으로 하는 평판 디스플레이 구동회로.
- 제 2 항에 있어서,상기 제1 신호증폭부는피모스형 차동증폭기 또는 앤모스형 차동증폭기를 구비하는 것을 특징으로 하는 평판 디스플레이 구동회로.
- 제 4 항에 있어서,상기 제1 신호증폭부는제1 화면정보에 대응하는 입력신호와 상기 제1 출력드라이버의 출력을 입력받아 상기 제1 화면정보에 대응하는 채널에 전하를 충전시킬 수 있는 제1 파지티브 감마값을 출력하는 차동증폭기; 및상기 차동증폭기의 출력에 응답하여, 상기 제1 화면정보에 대응하는 채널에 전하를 방전시킬 수 있는 제2 파지티브 감마값을 출력하기 위한 신호출력부를 구비하는 것을 특징으로 하는 평판 디스플레이 구동회로.
- 제 4 항에 있어서,상기 제2 신호증폭부는제2 화면정보에 대응하는 입력신호와 상기 제1 출력드라이버의 출력을 입력받아 상기 제2 화면정보에 대응하는 채널에 전하를 충전시킬 수 있는 제1 네거티브 감마값을 출력하는 차동증폭기; 및상기 차동증폭기의 출력에 응답하여, 상기 제1 화면정보에 대응하는 채널에 전하를 방전시킬 수 있는 제2 네거티브 감마값을 출력하기 위한 신호출력부를 구비하는 것을 특징으로 하는 평판 디스플레이 구동회로.
- 평판디스플레이에 표시될 제1 화면정보를 입력받아 파지티브 감마값으로 전환하는 단계;상기 평판디스플레이에 표시될 제2 화면정보를 입력받아 네거티브 감마값으로 전환하여 제공하는 단계;스위칭동작을 통해 상기 파지티브 감마값과 상기 네거티브 감마값중 하나를 선택하여 전달하는 단계; 및상기 전달된 네거티브 감마값 또는 파지티브 감마값을 대응하는 평판디스플레이의 채널로 드라이빙하는 단계를 포함하는 평판 디스플레이 구동방법.
- 제 9 항에 있어서,상기 스위칭동작을 이루어지기 전에 상기 파지티브 감마값과 상기 네거티브 감마값을 전달받아 증폭하는 단계를 더 포함하는 것을 특징으로 하는 평판 디스플레이 구동방법.
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1020070020284A KR100883030B1 (ko) | 2007-02-28 | 2007-02-28 | 평판 디스플레이의 구동 회로 및 방법 |
US12/071,890 US8194023B2 (en) | 2007-02-28 | 2008-02-27 | Switch unit in a driving circuit of flat panel display and driving method thereof |
JP2008048781A 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 |
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KR1020070020284A KR100883030B1 (ko) | 2007-02-28 | 2007-02-28 | 평판 디스플레이의 구동 회로 및 방법 |
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KR20080079810A KR20080079810A (ko) | 2008-09-02 |
KR100883030B1 true KR100883030B1 (ko) | 2009-02-09 |
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US (1) | US8194023B2 (ko) |
JP (1) | JP5273769B2 (ko) |
KR (1) | KR100883030B1 (ko) |
Families Citing this family (11)
Publication number | Priority date | Publication date | Assignee | Title |
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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 |
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US8194023B2 (en) | 2012-06-05 |
JP2008217009A (ja) | 2008-09-18 |
KR20080079810A (ko) | 2008-09-02 |
US20080204386A1 (en) | 2008-08-28 |
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