CN100590699C - 液晶显示装置的点反相驱动方法 - Google Patents
液晶显示装置的点反相驱动方法 Download PDFInfo
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- CN100590699C CN100590699C CN03154385A CN03154385A CN100590699C CN 100590699 C CN100590699 C CN 100590699C CN 03154385 A CN03154385 A CN 03154385A CN 03154385 A CN03154385 A CN 03154385A CN 100590699 C CN100590699 C CN 100590699C
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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
- 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
- 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
- G09G2320/0219—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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- General Physics & Mathematics (AREA)
- Crystallography & Structural Chemistry (AREA)
- Chemical & Material Sciences (AREA)
- Theoretical Computer Science (AREA)
- Computer Hardware Design (AREA)
- Nonlinear Science (AREA)
- Mathematical Physics (AREA)
- Optics & Photonics (AREA)
- Liquid Crystal (AREA)
- Liquid Crystal Display Device Control (AREA)
- Control Of Indicators Other Than Cathode Ray Tubes (AREA)
Abstract
本发明发明提供一种液晶面板的点反相驱动方法,其特征在于:在包含使R、G、B点列各沿水平方向反复排列的多个点的液晶面板的反相驱动方法中,使规定数的R、G、B点列在一组中点反相,反相驱动上述一组R、G、B点列,使其与相邻的组对应的R、G、B点列的极性相反,在同一组内以2个点列单位反相驱动上述R、G、B点列。
Description
技术领域
本发明发明涉及液晶面板的点反相驱动方法,特别涉及能消除画面变淡的带绿色(Greenish)现象的液晶面板的点反相驱动方法。
背景技术
一般为了驱动液晶面板而施加的驱动电压以点单位或行单位或帧单位使极性反相。其理由是:在同一极性的驱动电压继续施加在液晶盒上时,因液晶物质内的离子性不纯物的沉淀而在象素电极和对置电极上发生电气和化学变化,从而使画面的显示灵敏度和辉度下降。
因此,为了防止这样的问题而使用反相驱动的方式亦即使施加在液晶盒上的电压的极性周期地反相驱动的驱动方式。
特别是把以单一象素单位使极性反相的反相驱动方式变成一点反相驱动方式,这样的点反相驱动方式供给液晶面板的数据信号的极性被按液晶面板上的每个源极线、栅极线和帧反相。
图1是表示现有技术的点反相驱动的点图形的图,如图所示,包括使R、G、B点列沿各水平行方向反复排列的多个点。
在图1的水平行中,在第一点1被“+”极性充电后,第二点2改变为“-”的瞬间,产生通过第一点的象素电极和第二点2的象素电极之间寄生电容的交流(AC)电流,使第二点象素的点2的象素电极的充电率下降。与此类似,在从第一水平行转换到第二水平行时也因极性反相,而使相应象素电极充电率下降。
因此,与第一点1相比,第二点2的辉度随着充电率下降而减少,所以在画面上随象素的不同而发生淡的辉度差即带绿色。
图2是表示现有技术的点反相驱动的波形的波形图,如图所示,因为施加在各点1、2、3/4、5、6上的电压的充电量随极性反相而被非对称地充电,所以在象素电极内产生的寄生电容使公共电压(Vcom)畸变。
发明内容
因此,本发明是为了解决上述现有技术的问题而提出的,其目的是提供一种液晶显示装置的点反相驱动方法,该方法通过使用以二个列周期反相的二点反相驱动方式和使其变型的点反相驱动方式消除公共电压的畸变现象,能防止变淡绿现象。
为了达到上述目的,本发明的液晶显示装置的点驱动方法的特征在于:在包含使R、G、B点列各沿水平行方向反复排列的多个点的液晶面板的点反相驱动方法中,使规定数的R、G、B点列以一组点反相,并反相驱动上述一组的R、G、B点列,使其与相邻的组对应的R、G、B点列的极性相反,在同一组内以2个点列单位反相驱动上述R、G、B点列。
附图说明
图1是表示现有技术的反相驱动方式的点图形的图。
图2是表示现有技术的点反相驱动方式的波形的波形图。
图3是通过本发明一实施例表示使用点反相驱动方式的点图形的图。
图4是通过本发明另一实施例表示使用点反相驱动方式的点图形的图。
具体实施方式
通过参照附图对本发明优选实施例的下述说明,可以使上述的本发明的目的和其它特征及优点变得更加清楚。
下面参照附图,详细说明本发明的液晶显示装置的二点反相驱动方法。
本发明的液晶显示装置包括以在多条控制线和与上述多条控制线交叉的多条数据线、在上述多条数据线与上述控制线所交叉的区域上形成的薄膜液晶体管以行列状态排列的多个象素。各象素按R、G、B点列形成,上述R、G、B点列在液晶面板1沿列方向排列。
上述液晶显示装置的驱动方法如公知那样,控制部产生用于使液晶面板反相驱动的驱动信号,并分别供给配置在上述液晶面板的侧部上的源极驱动器和控制极驱动器,源极驱动器将对应来自上述控制器和驱动信号的灰度级电压供给源极线。
本发明为了防止用一点反相驱动方式的变淡绿现象而采用二点驱动方式。
本发明的二点反相驱动方式使四个R、G、B点列在一组内反相,相邻的组对应的点列的极性相反地反相,在同一组内以二点列单位使上述R、G、B点列反相驱动。在此,一组在例如水平行为四个的场合由4×12=48个点构成。
图3是表示本发明一实施例的点图形的图,如图所示那样,以二个点列单位使R、G、B点列反相驱动,使上述R、G、B点列在一个水平行单位中点反相驱动。
更具体地说,12个点列(1-12)在水平方向形成一组(1至12),在第一组(1至12)中反相驱动各点的极性,以使其与相邻的第二组(13至24)对应的点的极性相反。
另外,在第一组的第一水平行中,在第一点(R)和第二点(G)用“+”极性驱动时,第三点(B)和第四点(R)分别被驱动为“-”极性,在第一组的第一列线中第一点(R)用“+”极性驱动时,第二点(R)被驱动为“-”极性。
图4是表示本发明另一实施例的点图形的图,如图所示那样,以二个点列单位使R、G、B点列反相驱动,按二个水平行单位点反相驱动上述R、G、B点列。
更具体地说,把12个点列(1至12)沿水平方向构成成一组,在第一组(1至12)中反相驱动各点的极性,以使其与相邻的第二组(13至24)对应的点的极性彼此相反。
另外,在第一组的第一水平行上,第一点(R)和第二点(G)用“+”极性驱动时,第三点(B)和第四点(R)分别被反相驱动成“-”极性。
另外,在第一组的第一列行中,第一列的点(R)和第二点(R)以“+”极性驱动时,第三点(R)和第四点(R)分别被反相驱动为“-”极性。
这样,在液晶显示装置中使用二点反相驱动方式时,使各象素间的充电量的差减少,使公共电压的畸变现象减少。
另外,本发明不受详述的特定优选的实施例的限定,在不脱离权利要求书的本发明要旨的范围内本技术领域的普通技术人员可以进行多种变更。
如上所述,按照本发明的液晶显示装置的点反相驱动方法,通过二点反相驱动方式的使用而使由象素间的充电量的差引起的公共电压的畸变现象减少,从而不会变更面板设计,可以防止在画面上出现带绿色的现象,结果能实现高质量图象的液晶显示装置。
Claims (3)
1.一种液晶面板的点反相驱动方法,其特征在于:
在包含使R、G、B点列各沿水平方行向反复排列的多个点的液晶面板的反相驱动方法中,
使规定数的R、G、B点列在一组中点反相,反相驱动上述一组R、G、B点列,使其与相邻的组对应的R、G、B点列的极性相反,在同一组内以2个点列单位反相驱动上述R、G、B点列;
上述一组点列由四个R、G、B点列构成。
2.如权利要求1所述的液晶面板的点反相驱动方法,其特征在于:上述R、G、B点列以一个水平行单位点反相驱动。
3.如权利要求1所述的液晶面板的点反相驱动方法,其特征在于:上述R、G、B点列以二个水平行单位点反相驱动。
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1020030020192A KR100671515B1 (ko) | 2003-03-31 | 2003-03-31 | 액정표시장치의 도트반전구동방법 |
KR20192/03 | 2003-03-31 | ||
KR20192/2003 | 2003-03-31 |
Publications (2)
Publication Number | Publication Date |
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CN1534582A CN1534582A (zh) | 2004-10-06 |
CN100590699C true CN100590699C (zh) | 2010-02-17 |
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CN03154385A Expired - Lifetime CN100590699C (zh) | 2003-03-31 | 2003-08-21 | 液晶显示装置的点反相驱动方法 |
Country Status (5)
Country | Link |
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US (1) | US20040189575A1 (zh) |
JP (1) | JP4291643B2 (zh) |
KR (1) | KR100671515B1 (zh) |
CN (1) | CN100590699C (zh) |
TW (1) | TWI247263B (zh) |
Families Citing this family (20)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR100531417B1 (ko) * | 2004-03-11 | 2005-11-28 | 엘지.필립스 엘시디 주식회사 | 액정패널의 구동장치 및 그 구동방법 |
JP2006084860A (ja) * | 2004-09-16 | 2006-03-30 | Sharp Corp | 液晶表示装置の駆動方法及び液晶表示装置 |
KR101189277B1 (ko) * | 2005-12-06 | 2012-10-09 | 삼성디스플레이 주식회사 | 액정 표시 장치 |
KR101260838B1 (ko) * | 2006-06-30 | 2013-05-06 | 엘지디스플레이 주식회사 | 액정표시장치 |
KR101374507B1 (ko) * | 2006-10-31 | 2014-03-26 | 엘지디스플레이 주식회사 | 유기발광다이오드 표시장치와 그 구동방법 |
KR101359923B1 (ko) * | 2007-02-28 | 2014-02-11 | 삼성디스플레이 주식회사 | 표시 장치 및 그 구동 방법 |
TW200839691A (en) * | 2007-03-19 | 2008-10-01 | Innolux Display Corp | Liquid crystal panel |
KR101224459B1 (ko) * | 2007-06-28 | 2013-01-22 | 엘지디스플레이 주식회사 | 액정표시장치 |
KR101301312B1 (ko) * | 2008-04-08 | 2013-08-29 | 엘지디스플레이 주식회사 | 액정표시장치와 그 구동방법 |
TWI414865B (zh) * | 2009-03-06 | 2013-11-11 | Au Optronics Corp | 具多點反轉之液晶顯示器 |
TWI406249B (zh) * | 2009-06-02 | 2013-08-21 | Sitronix Technology Corp | 液晶點反轉驅動電路 |
JP2012078415A (ja) * | 2010-09-30 | 2012-04-19 | Hitachi Displays Ltd | 表示装置 |
TWI423216B (zh) * | 2010-11-15 | 2014-01-11 | Au Optronics Corp | 顯示器及其畫素電路 |
CN104391409A (zh) * | 2010-11-24 | 2015-03-04 | 友达光电股份有限公司 | 显示器及其像素电路 |
KR101819943B1 (ko) * | 2011-05-18 | 2018-03-02 | 삼성디스플레이 주식회사 | 표시 패널의 구동 방법 및 이를 수행하기 위한 표시 장치 |
KR102001047B1 (ko) * | 2012-07-12 | 2019-07-18 | 삼성디스플레이 주식회사 | 표시 패널 구동 방법 및 이를 수행하기 위한 표시 패널 구동 장치 |
KR102315192B1 (ko) | 2014-12-16 | 2021-10-21 | 삼성디스플레이 주식회사 | 표시 장치 및 이의 구동 방법 |
KR102653295B1 (ko) * | 2016-08-25 | 2024-04-01 | 삼성디스플레이 주식회사 | 액정 표시 장치 및 그 구동 방법 |
GB2587400B (en) * | 2019-09-27 | 2022-02-16 | Dualitas Ltd | Hologram display using a liquid crystal display device |
CN114326227B (zh) * | 2021-12-29 | 2024-02-23 | 成都天马微电子有限公司 | 一种显示面板及其驱动方法、显示装置 |
Family Cites Families (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5731796A (en) * | 1992-10-15 | 1998-03-24 | Hitachi, Ltd. | Liquid crystal display driving method/driving circuit capable of being driven with equal voltages |
JP2743841B2 (ja) * | 1994-07-28 | 1998-04-22 | 日本電気株式会社 | 液晶表示装置 |
US5774099A (en) * | 1995-04-25 | 1998-06-30 | Hitachi, Ltd. | Liquid crystal device with wide viewing angle characteristics |
KR100338007B1 (ko) * | 1997-09-30 | 2002-10-11 | 삼성전자 주식회사 | 액정 표시 장치 및 그의 구동 방법 |
JPH11338423A (ja) * | 1998-05-15 | 1999-12-10 | Internatl Business Mach Corp <Ibm> | カラー表示方法、この表示方法に適するマトリックス駆動用液晶表示モジュール、及び、この液晶表示モジュールを含むpcシステム、並びに、プロジェクションタイプ表示装置 |
KR100302132B1 (ko) * | 1998-10-21 | 2001-12-01 | 구본준, 론 위라하디락사 | 싸이클 인버젼 방식 액정 패널 구동 방법 및 그 장치 |
JP3365357B2 (ja) * | 1999-07-21 | 2003-01-08 | 日本電気株式会社 | アクティブマトリクス型液晶表示装置 |
KR100767364B1 (ko) * | 2001-06-19 | 2007-10-17 | 삼성전자주식회사 | 액정 표시 장치 및 그 구동 방법 |
US7079164B2 (en) * | 2001-08-03 | 2006-07-18 | Lg.Philips Lcd Co., Ltd. | Method and apparatus for driving liquid crystal display panel |
TW574681B (en) * | 2002-08-16 | 2004-02-01 | Hannstar Display Corp | Driving method with dynamic polarity inversion |
-
2003
- 2003-03-31 KR KR1020030020192A patent/KR100671515B1/ko active IP Right Grant
- 2003-07-22 TW TW092120005A patent/TWI247263B/zh not_active IP Right Cessation
- 2003-07-22 US US10/626,900 patent/US20040189575A1/en not_active Abandoned
- 2003-07-25 JP JP2003279919A patent/JP4291643B2/ja not_active Expired - Lifetime
- 2003-08-21 CN CN03154385A patent/CN100590699C/zh not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
US20040189575A1 (en) | 2004-09-30 |
JP4291643B2 (ja) | 2009-07-08 |
KR100671515B1 (ko) | 2007-01-19 |
TWI247263B (en) | 2006-01-11 |
KR20040085495A (ko) | 2004-10-08 |
TW200419514A (en) | 2004-10-01 |
JP2004302403A (ja) | 2004-10-28 |
CN1534582A (zh) | 2004-10-06 |
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KR20050103524A (ko) | 액정표시장치 및 그의 구동방법 |
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