CN103680451B - 用于液晶显示的goa电路及显示装置 - Google Patents

用于液晶显示的goa电路及显示装置 Download PDF

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CN103680451B
CN103680451B CN201310700186.7A CN201310700186A CN103680451B CN 103680451 B CN103680451 B CN 103680451B CN 201310700186 A CN201310700186 A CN 201310700186A CN 103680451 B CN103680451 B CN 103680451B
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clock signal
film transistor
tft
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CN103680451A (zh
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虞晓江
李长晔
赖梓杰
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TCL China Star Optoelectronics Technology Co Ltd
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Shenzhen China Star Optoelectronics Technology Co Ltd
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Priority to PCT/CN2014/070115 priority patent/WO2015089914A1/zh
Priority to GB1607005.4A priority patent/GB2534755B/en
Priority to KR1020167014120A priority patent/KR101817027B1/ko
Priority to US14/345,759 priority patent/US9159280B1/en
Priority to JP2016533627A priority patent/JP6208872B2/ja
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    • G09GARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G3/00Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
    • G09G3/20Control 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
    • G09G3/34Control 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
    • G09G3/36Control 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
    • G09G3/3607Control 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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    • G09G3/00Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
    • G09G3/20Control 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
    • G09G3/34Control 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
    • G09G3/36Control 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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    • G09G3/00Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
    • G09G3/20Control 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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    • GPHYSICS
    • G02OPTICS
    • G02FOPTICAL 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
    • G02F1/00Devices 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
    • G02F1/01Devices 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 
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    • G02F1/00Devices 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
    • G02F1/01Devices 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 
    • G02F1/13Devices 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
    • G02F1/133Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
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    • G09GARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G3/00Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
    • G09G3/20Control 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
    • G09G3/34Control 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
    • G09G3/36Control 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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    • G09G3/3677Details of drivers for scan electrodes suitable for active matrices only
    • GPHYSICS
    • G09EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09GARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G3/00Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
    • G09G3/20Control 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
    • G09G3/34Control 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
    • G09G3/36Control 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
    • G09G3/3611Control of matrices with row and column drivers
    • G09G3/3685Details of drivers for data electrodes
    • G09G3/3688Details of drivers for data electrodes suitable for active matrices only
    • GPHYSICS
    • G11INFORMATION STORAGE
    • G11CSTATIC STORES
    • G11C19/00Digital stores in which the information is moved stepwise, e.g. shift registers
    • G11C19/28Digital stores in which the information is moved stepwise, e.g. shift registers using semiconductor elements
    • GPHYSICS
    • G09EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09GARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G2300/00Aspects of the constitution of display devices
    • G09G2300/08Active 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
    • G09G2300/0809Several active elements per pixel in active matrix panels
    • GPHYSICS
    • G09EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
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    • G09G2310/02Addressing, scanning or driving the display screen or processing steps related thereto
    • G09G2310/0243Details of the generation of driving signals
    • G09G2310/0248Precharge or discharge of column electrodes before or after applying exact column voltages
    • GPHYSICS
    • G09EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
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    • G09G2310/0264Details of driving circuits
    • G09G2310/027Details of drivers for data electrodes, the drivers handling digital grey scale data, e.g. use of D/A converters
    • GPHYSICS
    • G09EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
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    • G09G2310/0286Details of a shift registers arranged for use in a driving circuit
    • GPHYSICS
    • G09EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09GARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G2320/00Control of display operating conditions
    • G09G2320/02Improving the quality of display appearance
    • G09G2320/0242Compensation of deficiencies in the appearance of colours
    • GPHYSICS
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    • G09G2320/0252Improving the response speed

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Abstract

本发明涉及用于液晶显示的GOA电路及显示装置。该GOA电路包括级联的多个GOA单元,第n级GOA单元包括上拉电路(100)、下拉电路(200)、下拉维持电路(300)、上拉控制电路(400)及自举电容(Cb),工作时,分别输入第n级时钟信号(CK(n))、第一和第二时钟信号(LC1和LC2),该第一时钟信号(LC1)和该第二时钟信号(LC2)的频率低于该第n级时钟信号(CK(n)),并且该第一时钟信号(LC1)对第一电路点(P)的充电和第二时钟信号(LC2)对第二电路点(K)的充电交替进行。本发明还提供了相应的显示装置。本发明的GOA电路通过低频时钟信号和高频时钟信号来准确控制影响水平扫描线充电的栅极Q(n)的电压,保证GOA充电信号的稳定输出。

Description

用于液晶显示的GOA电路及显示装置
技术领域
本发明涉及液晶显示技术领域,尤其涉及一种用于液晶显示的GOA(GateDriveronArray,阵列基板行驱动)电路及显示装置。
背景技术
液晶显示器具有机身薄、省电、无辐射等众多优点,得到了广泛的应用。现有市场上的液晶显示器大部分为背光型液晶显示器,其包括液晶面板及背光模组(backlightmodule)。液晶面板的工作原理是在两片平行的玻璃基板当中放置液晶分子,并在两片玻璃基板上施加驱动电压来控制液晶分子的旋转方向,以将背光模组的光线折射出来产生画面。
主动式液晶显示器中,每个像素具有一个薄膜晶体管(TFT),其栅极(Gate)连接至水平扫描线,漏极(Drain)连接至垂直方向的数据线,源极(Source)则连接至像素电极。在水平扫描线上施加足够的电压,会使得该条线上的所有TFT打开,此时该水平扫描线上的像素电极会与垂直方向的数据线连接,从而将数据线上的显示信号电压写入像素,控制不同液晶的透光度进而达到控制色彩的效果。目前主动式液晶显示面板水平扫描线的驱动主要由面板外接的IC来完成,外接的IC可以控制各级水平扫描线的逐级充电和放电。而GOA技术,即GateDriveronArray(阵列基板行驱动)技术,可以运用液晶显示面板的原有制程将水平扫描线的驱动电路制作在显示区周围的基板上,使之能替代外接IC来完成水平扫描线的驱动。GOA技术能减少外接IC的绑定(bonding)工序,有机会提升产能并降低产品成本,而且可以使液晶显示面板更适合制作窄边框或无边框的显示产品。
现有的GOA电路,通常包括级联的多个GOA单元,每一级GOA单元对应驱动一级水平扫描线。GOA单元的主要结构包括上拉电路(Pull-uppart),上拉控制电路(Pull-upcontrolpart),下传电路(TransferPart),下拉电路(KeyPull-downPart)和下拉维持电路(Pull-downHoldingPart),以及负责电位抬升的自举(Boast)电容。上拉电路主要负责将时钟信号(Clock)输出为栅极(Gate)信号;上拉控制电路负责控制上拉电路的打开时间,一般连接前面级GOA电路传递过来的下传信号或者Gate信号;下拉电路负责在第一时间将Gate拉低为低电位,即关闭Gate信号;下拉维持电路则负责将Gate输出信号和上拉电路的Gate信号(通常称为Q点)维持(Holding)在关闭状态(即负电位),通常有两个下拉维持模块交替作用;自举电容(Cboast)则负责Q点的二次抬升,这样有利于上拉电路的G(N)输出。
GOA电路的目的就是将集成电路输出的扫描波形通过电路操作的方式输出,使像素开关打开从而可以向氧化铟锡(ITO)电极输入数据信号。数据信号输入完后将数据信号内容保持住直到下一帧的开启。在电路操作过程中,因一条扫描电路打开过后在一帧剩余的时间里都是关闭的,扫描电路关闭(保持)时间比扫描时间长很多,对GOA电路中的薄膜晶体管稳定特定要求很高。为保证GOA电路充电信号的稳定输出,亟需GOA电路中影响水平扫描线充电的薄膜晶体管的栅极Q(n)的电压能够得到准确控制的解决方案。
发明内容
因此,本发明的目的在于提供一种用于液晶显示的GOA电路,实现通过低频时钟信号和高频时钟信号来准确控制影响水平扫描线充电的薄膜晶体管的栅极Q(n)电压,从而保证GOA充电信号的稳定输出。
本发明的另一目的在于提供一种应用上述GOA电路的液晶显示装置,实现通过低频时钟信号和高频时钟信号来准确控制影响水平扫描线充电的薄膜晶体管的栅极Q(n)电压,从而保证GOA充电信号的稳定输出。
为实现上述目的,本发明提供了一种用于液晶显示的GOA电路,包括级联的多个GOA单元,按照第n级GOA单元控制对显示区域第n级水平扫描线充电,该第n级GOA单元包括上拉电路、下拉电路、下拉维持电路、上拉控制电路及自举电容,该上拉电路、下拉电路、下拉维持电路及自举电容分别与栅极信号点和该第n级水平扫描线连接,该上拉控制电路与该栅极信号点连接;
该下拉维持电路包括:
第一薄膜晶体管,其栅极连接第一电路点,漏极和源极分别连接该第n级水平扫描线和输入直流低电压;
第二薄膜晶体管,其栅极连接第二电路点,漏极和源极分别连接该第n级水平扫描线和输入该直流低电压;
第三薄膜晶体管,其栅极连接该栅极信号点,漏极和源极分别连接该第一电路点和输入该直流低电压;
第四薄膜晶体管,其栅极连接该栅极信号点,漏极和源极分别连接该第二电路点和输入该直流低电压;
第五薄膜晶体管,其漏极和源极分别连接该栅极信号点和该第n级水平扫描线;
第六薄膜晶体管,其漏极和源极分别输入第n级时钟信号和连接该第五薄膜晶体管的栅极;
第七薄膜晶体管,其栅极输入第一时钟信号,漏极和源极分别连接该第六薄膜晶体管的栅极和该第一电路点;
第八薄膜晶体管,其栅极输入第二时钟信号,漏极和源极分别连接该第六薄膜晶体管的栅极和该第二电路点;
第九薄膜晶体管,其栅极输入该第一时钟信号,漏极和源极分别输入该第一时钟信号和连接该第六薄膜晶体管的栅极;
第十薄膜晶体管,其栅极输入该第二时钟信号,漏极和源极分别输入该第二时钟信号和连接该第六薄膜晶体管的栅极;
工作时,该第一时钟信号和该第二时钟信号的频率低于该第n级时钟信号,并且该第一时钟信号对该第一电路点的充电和该第二时钟信号对该第二电路点的充电交替进行。
其中,该上拉电路包括:第十一薄膜晶体管,其栅极连接该栅极信号点,漏极和源极分别输入该第n级时钟信号和连接该第n级水平扫描线。
其中,该下拉电路包括:第十二薄膜晶体管,其栅极连接第n+2级水平扫描线,漏极和源极分别连接该第n级水平扫描线和输入该直流低电压;第十三薄膜晶体管,其栅极连接该第n+2级水平扫描线,漏极和源极分别连接该栅极信号点和输入该直流低电压。
其中,该上拉控制电路包括:第十四薄膜晶体管,其栅极连接第n-2级水平扫描线,漏极和源极分别连接该第n-2级水平扫描线和该栅极信号点。
其中,该第n级时钟信号的占空比为40%。
其中,该第一时钟信号通过公共的金属线输入所述级联的多个GOA单元。
其中,该第二时钟信号通过公共的金属线输入所述级联的多个GOA单元。
其中,该直流低电压通过公共的金属线输入所述级联的多个GOA单元。
本发明还提供了一种显示装置,包括如上面所述的用于液晶显示的GOA电路。
本发明的用于液晶显示的GOA电路及显示装置可以通过低频时钟信号和高频时钟信号来准确控制影响水平扫描线充电的薄膜晶体管栅极Q(n)在充电时期及非充电时期的电压,保证GOA充电信号的稳定输出;运用本发明的GOA电路可以制作低成本的窄边框或无边框的液晶显示装置。
附图说明
下面结合附图,通过对本发明的具体实施方式详细描述,将使本发明的技术方案及其他有益效果显而易见。
附图中,
图1为本发明用于液晶显示的GOA电路(单级)一实施例的电路图;
图2为本发明用于液晶显示的GOA电路在常温时的输出波形示意图;
图3为本发明用于液晶显示的GOA电路的多级架构示意图;
图4为应用了本发明用于液晶显示的GOA电路的液晶显示装置的结构示意图。
具体实施方式
参见图1,其为本发明用于液晶显示的GOA电路(单级)一实施例的电路图。本发明的GOA电路可以包括级联的多个GOA单元,按照第n级GOA单元控制对显示区域第n级水平扫描线G(n)充电,第n级GOA单元包括上拉电路100、下拉电路200、下拉维持电路300、上拉控制电路400及自举电容Cb,该上拉电路100、下拉电路200、下拉维持电路300及自举电容Cb分别与栅极信号点Q(n)和第n级水平扫描线G(n)连接,该上拉控制电路400与该栅极信号点Q(n)连接。
上拉电路100包括直接控制给显示区域第n级水平扫描线G(n)进行充电的薄膜晶体管T21,其栅极连接该栅极信号点Q(n),T21的漏极和源极分别输入第n级高频时钟信号CK(n)和连接第n级水平扫描线G(n),T21栅极Q(n)的电位可直接影响CK(n)对G(n)充电。
下拉电路200包含在G(n)充电结束时进行放电的一组薄膜晶体管,包括对G(n)进行放电的T31和对Q(n)进行放电的T41;T31栅极连接第n+2级水平扫描线G(n+2),漏极和源极分别连接该第n级水平扫描线G(n)和输入该直流低电压VSS;T41栅极连接该第n+2级水平扫描线G(n+2),漏极和源极分别连接栅极信号点Q(n)和输入直流低电压VSS。
上拉控制电路400包括薄膜晶体管T11,其栅极连接第n-2级水平扫描线G(n-2),漏极和源极分别连接第n-2级水平扫描线G(n-2)和栅极信号点Q(n)。薄膜晶体管T11可以控制将第n-2级GOA信号传递给第n级GOA电路,使GOA电路可以逐级充放电。
Q(n)和G(n)之间所连接的有自举功能的电容Cb,可在G(n)电位提升时通过Cb的耦合效应使Q(n)电位提升,从而获得更高的Q(n)电位及更小的GOA充电信号的阻容延迟(RCdelay)。
下拉维持电路(300)包括的一组薄膜晶体管可以在GOA电路非充电时期保持G(n)和Q(n)的低电位。薄膜晶体管T32栅极连接第一电路点P,漏极和源极分别连接第n级水平扫描线G(n)和输入直流低电压VSS;薄膜晶体管T33栅极连接第二电路点K,漏极和源极分别连接第n级水平扫描线G(n)和输入该直流低电压VSS;薄膜晶体管T52栅极连接该栅极信号点Q(n),漏极和源极分别连接该第一电路点P和输入直流低电压VSS;薄膜晶体管T62栅极连接栅极信号点Q(n),漏极和源极分别连接第二电路点K和直流低电压VSS;薄膜晶体管T43漏极和源极分别连接该栅极信号点Q(n)和第n级水平扫描线G(n);薄膜晶体管T42漏极和源极分别输入第n级时钟信号CK(n)和薄膜晶体管T43的栅极;薄膜晶体管T72栅极输入第一时钟信号LC1,漏极和源极分别连接薄膜晶体管T42的栅极和第一电路点P;薄膜晶体管T73栅极输入第二时钟信号LC2,漏极和源极分别连接薄膜晶体管T42的栅极和第二电路点K;薄膜晶体管T12栅极输入第一时钟信号LC1,漏极和源极分别输入第一时钟信号LC1和连接薄膜晶体管T42的栅极;薄膜晶体管T13栅极输入第二时钟信号LC2,漏极和源极分别输入第二时钟信号LC2和连接薄膜晶体管T42的栅极;直流低电压VSS可以为接低电平或接地。工作时,输入第n级时钟信号CK(n)、第一时钟信号LC1和第二时钟信号LC2,第一时钟信号LC1和第二时钟信号LC2的频率低于第n级时钟信号CK(n),并且第一时钟信号LC1对第一电路点P的充电和该第二时钟信号LC2对该第二电路点K的充电交替进行。
电路的P点和K点交替受低频时钟信号LC1和LC2的充电而处于高电位,从而交替控制薄膜晶体管T32或T33的打开,以维持G(n)在非充电时期的低电位,并避免薄膜晶体管T32或T33长时间受栅极电压应力的影响。薄膜晶体管T52连接P点和输入直流低电压VSS,薄膜晶体管T62连接K点和输入直流低电压VSS,T52和T62可在Q(n)处于高电位时打开而将P点、K点电位拉低以关闭T32和T33使之不影响充电。在非充电时期,薄膜晶体管T12&T72或T13&T73会打开,P点或K点会处于高电位,因此薄膜晶体管T42的栅极处于高电位,高频时钟信号CK(n)可周期性打开薄膜晶体管T43以维持Q(n)处于低电位。在充电时期,Q(n)充至高电位后,T52或T62打开,T42的栅极电位被拉低而导致T42关闭,T43也无法打开,因此Q(n)通过T43的漏电也得以减小,Q(n)电压的稳定性得以提升。
本发明的GOA电路可以通过低频时钟信号和高频时钟信号来准确控制影响水平扫描线充电的薄膜晶体管的栅极Q(n)在非充电时期及充电时期的电压,因此能保证GOA充电信号的稳定输出。具体来讲:1、在非充电时期,连接高频时钟信号CK(n)和薄膜晶体管T43的薄膜晶体管T42导通,高频时钟信号CK(n)可以周期性的打开薄膜晶体管T43以维持Q(n)处于低电位;2、在充电时期,Q(n)被充至高电位后,薄膜晶体管T42和T43被关闭,Q(n)通过T43的漏电得以降低。
参见图2,其为本发明用于液晶显示的GOA电路在常温时的输出波形示意图,其中高频时钟信号的占空比(dutyratio)为40%。图2中,t1~t3为G(n)充电前的准备时间,t3~t4为G(n)的充电时间,t4后G(n)被放电。低频时钟信号LC1和LC2可以选择为频率相同,相位相反。可结合图1来理解图2,t1时,CK(n-2)的电位开始抬升,G(n-2)的电位也跟着开始抬升,薄膜晶体管T11打开给Q(n)充电。Q(n)电位抬升后,可打开薄膜晶体管T52和T62,从而关闭T32、T42、T33和T43使之不影响Q(n)和G(n)充电。t2时,CK(n-2)的电位开始下降,但薄膜晶体管T11的连接方式会阻止Q(n)的漏电,Q(n)电位基本保持不变。t3时,CK(n)的电位开始抬升,薄膜晶体管T21打开,Q(n)自举到更高电位并控制T21给G(n)充电。t4时,CK(n)开始下降,Q(n)电位并未立即被拉低,薄膜晶体管T21在t4后的短时间内仍保持导通,将G(n)电位拉低。这之后,G(n+2)电位抬升,薄膜晶体管T31和T41打开,确保G(n)和Q(n)被拉至低电位。T52和T62在Q(n)电位拉低后关闭,T32、T33、T42、T43可正常打开,以维持G(n)和Q(n)在非充电时期的低电位。综上所述,本发明可以通过低频时钟信号和高频时钟信号来准确控制Q(n)电压,能保证GOA充电信号的稳定输出。
参见图3,其为本发明用于液晶显示的GOA电路的多级架构示意图。图3给出了本发明的GOA电路的一种多级架构,用于传递低频时钟信号LC1和LC2、直流低电压VSS、以及CK1~CK4的4个高频时钟信号的金属线放置于各级GOA电路(具体连接方法参见图1)的***。低频时钟信号LC1、低频时钟信号LC2和直流低电压VSS分别可以通过各自的公共的金属线输入级联的多个GOA单元中。在此实施例中,第n级GOA电路分别接受LC1、LC2、VSS、CK1~CK4中的1个CK信号、第n-2级GOA电路产生的G(n-2)、第n+2级GOA电路产生的G(n+2),并产生G(n)信号。图3所示的各级GOA电路间的连接方法可保证GOA信号可以逐级传递,使得各级水平扫描线可以被逐级充电和放电。对于首、末端级联的GOA单元可以采用输入激活信号的方式来代替缺少的G(n)信号输入。
本发明的GOA电路可以运用液晶显示面板的原有制程将面板水平扫描线的驱动电路制作在显示区周围的基板上,使之能替代外接IC来完成平板显示面板各级水平扫描线的驱动。本发明尤其适合制作窄边框或无边框的液晶显示产品。
参见图4,其为应用了本发明用于液晶显示的GOA电路的液晶显示装置的结构示意图。图4中,液晶显示装置具有显示基板10,显示基板10上方的驱动控制板20为显示基板10提供驱动和控制信号,显示基板10左边区域30和右边区域40制作了GOA电路,可从左边和右边两个方向驱动显示区域50的水平扫描线。GOA电路接受驱动控制板20的输入信号并逐级产生水平扫描线的控制信号,可以控制显示区域50中的像素逐行打开。
综上所述,本发明的用于液晶显示的GOA电路及显示装置可以通过低频时钟信号和高频时钟信号来准确控制影响水平扫描线充电的薄膜晶体管栅极Q(n)在充电时期及非充电时期的电压,保证GOA充电信号的稳定输出;运用本发明的GOA电路可以制作低成本的窄边框或无边框的液晶显示装置。
以上所述,对于本领域的普通技术人员来说,可以根据本发明的技术方案和技术构思作出其他各种相应的改变和变形,而所有这些改变和变形都应属于本发明后附的权利要求的保护范围。

Claims (9)

1.一种用于液晶显示的GOA电路,其特征在于,包括级联的多个GOA单元,按照第n级GOA单元控制对显示区域第n级水平扫描线(G(n))充电,该第n级GOA单元包括上拉电路(100)、下拉电路(200)、下拉维持电路(300)、上拉控制电路(400)及自举电容(Cb),该上拉电路(100)、下拉电路(200)、下拉维持电路(300)及自举电容(Cb)分别与栅极信号点(Q(n))和该第n级水平扫描线(G(n))连接,该上拉控制电路(400)与该栅极信号点(Q(n))连接;
该下拉维持电路(300)包括:
第一薄膜晶体管(T32),其栅极连接第一电路点(P),漏极和源极分别连接该第n级水平扫描线(G(n))和输入直流低电压(VSS);
第二薄膜晶体管(T33),其栅极连接第二电路点(K),漏极和源极分别连接该第n级水平扫描线(G(n))和输入直流低电压(VSS);
第三薄膜晶体管(T52),其栅极连接该栅极信号点(Q(n)),漏极和源极分别连接该第一电路点(P)和输入该直流低电压(VSS);
第四薄膜晶体管(T62),其栅极连接该栅极信号点(Q(n)),漏极和源极分别连接该第二电路点(K)和输入该直流低电压(VSS);
第五薄膜晶体管(T43),其漏极和源极分别连接该栅极信号点(Q(n))和该第n级水平扫描线(G(n));
第六薄膜晶体管(T42),其漏极和源极分别输入第n级时钟信号(CK(n))和连接该第五薄膜晶体管(T43)的栅极;
第七薄膜晶体管(T72),其栅极输入第一时钟信号(LC1),漏极和源极分别连接该第六薄膜晶体管(T42)的栅极和该第一电路点(P);
第八薄膜晶体管(T73),其栅极输入第二时钟信号(LC2),漏极和源极分别连接该第六薄膜晶体管(T42)的栅极和该第二电路点(K);
第九薄膜晶体管(T12),其栅极输入该第一时钟信号(LC1),漏极和源极分别输入该第一时钟信号(LC1)和连接该第六薄膜晶体管(T42)的栅极;
第十薄膜晶体管(T13),其栅极输入该第二时钟信号(LC2),漏极和源极分别输入该第二时钟信号(LC2)和连接该第六薄膜晶体管(T42)的栅极;
工作时,该第一时钟信号(LC1)和该第二时钟信号(LC2)的频率低于该第n级时钟信号(CK(n)),并且该第一时钟信号(LC1)对该第一电路点(P)的充电和该第二时钟信号(LC2)对该第二电路点(K)的充电交替进行。
2.如权利要求1所述的用于液晶显示的GOA电路,其特征在于,该上拉电路(100)包括:第十一薄膜晶体管(T21),其栅极连接该栅极信号点(Q(n)),漏极和源极分别输入该第n级时钟信号(CK(n))和连接该第n级水平扫描线(G(n))。
3.如权利要求1所述的用于液晶显示的GOA电路,其特征在于,该下拉电路(200)包括:第十二薄膜晶体管(T31),其栅极连接第n+2级水平扫描线(G(n+2)),漏极和源极分别连接该第n级水平扫描线(G(n))和输入该直流低电压(VSS);第十三薄膜晶体管(T41),其栅极连接该第n+2级水平扫描线(G(n+2)),漏极和源极分别连接该栅极信号点(Q(n))和输入该直流低电压(VSS)。
4.如权利要求1所述的用于液晶显示的GOA电路,其特征在于,该上拉控制电路(400)包括:第十四薄膜晶体管(T11),其栅极连接第n-2级水平扫描线(G(n-2)),漏极和源极分别连接该第n-2级水平扫描线(G(n-2))和该栅极信号点(Q(n))。
5.如权利要求1所述的用于液晶显示的GOA电路,其特征在于,该第n级时钟信号的占空比为40%。
6.如权利要求1所述的用于液晶显示的GOA电路,其特征在于,该第一时钟信号(LC1)通过公共的金属线输入所述级联的多个GOA单元。
7.如权利要求1所述的用于液晶显示的GOA电路,其特征在于,该第二时钟信号(LC2)通过公共的金属线输入所述级联的多个GOA单元。
8.如权利要求1所述的用于液晶显示的GOA电路,其特征在于,该直流低电压(VSS)通过公共的金属线输入所述级联的多个GOA单元。
9.一种显示装置,其特征在于,包括如权利要求1所述的用于液晶显示的GOA电路。
CN201310700186.7A 2013-12-18 2013-12-18 用于液晶显示的goa电路及显示装置 Active CN103680451B (zh)

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CN201310700186.7A CN103680451B (zh) 2013-12-18 2013-12-18 用于液晶显示的goa电路及显示装置
PCT/CN2014/070115 WO2015089914A1 (zh) 2013-12-18 2014-01-03 用于液晶显示的goa电路及显示装置
GB1607005.4A GB2534755B (en) 2013-12-18 2014-01-03 GOA circuit for liquid crystal displaying and display device
KR1020167014120A KR101817027B1 (ko) 2013-12-18 2014-01-03 액정 디스플레이용 goa회로 및 디스플레이 장치
US14/345,759 US9159280B1 (en) 2013-12-18 2014-01-03 GOA circuit for liquid crystal displaying and display device
JP2016533627A JP6208872B2 (ja) 2013-12-18 2014-01-03 液晶表示に用いられるgoa回路及び表示装置

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Families Citing this family (47)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103680388B (zh) * 2013-12-26 2015-11-11 深圳市华星光电技术有限公司 用于平板显示的可修复的goa电路及显示装置
KR102174888B1 (ko) * 2014-02-12 2020-11-06 삼성디스플레이 주식회사 게이트 구동 회로 및 이를 포함하는 표시 장치
TWI521490B (zh) * 2014-04-02 2016-02-11 友達光電股份有限公司 顯示面板與閘極驅動器
CN103956146B (zh) * 2014-04-17 2017-04-12 深圳市华星光电技术有限公司 一种液晶面板驱动电路、液晶显示装置及一种驱动方法
US9741301B2 (en) 2014-04-17 2017-08-22 Shenzhen China Star Optoelectronics Technology Co., Ltd Driving circuit of display panel, display device, and method for driving the driving circuit of the display panel
CN103928008B (zh) * 2014-04-24 2016-10-05 深圳市华星光电技术有限公司 一种用于液晶显示的goa电路及液晶显示装置
CN103985369B (zh) * 2014-05-26 2017-02-15 深圳市华星光电技术有限公司 阵列基板行驱动电路及液晶显示装置
CN104036745B (zh) * 2014-06-07 2017-01-18 深圳市华星光电技术有限公司 驱动电路及液晶显示装置
CN104167191B (zh) * 2014-07-04 2016-08-17 深圳市华星光电技术有限公司 用于平板显示的互补型goa电路
CN104078022B (zh) * 2014-07-17 2016-03-09 深圳市华星光电技术有限公司 具有自我补偿功能的栅极驱动电路
CN104078019B (zh) * 2014-07-17 2016-03-09 深圳市华星光电技术有限公司 具有自我补偿功能的栅极驱动电路
CN104464657B (zh) * 2014-11-03 2017-01-18 深圳市华星光电技术有限公司 基于低温多晶硅半导体薄膜晶体管的goa电路
CN104575420B (zh) * 2014-12-19 2017-01-11 深圳市华星光电技术有限公司 一种扫描驱动电路
CN104537992B (zh) * 2014-12-30 2017-01-18 深圳市华星光电技术有限公司 用于液晶显示装置的goa电路
CN104485079B (zh) * 2014-12-31 2017-01-18 深圳市华星光电技术有限公司 用于液晶显示装置的goa电路
CN104851403B (zh) * 2015-06-01 2017-04-05 深圳市华星光电技术有限公司 基于氧化物半导体薄膜晶体管的goa电路
CN104867439B (zh) 2015-06-24 2017-04-05 合肥京东方光电科技有限公司 移位寄存器单元及其驱动方法、栅极驱动电路及显示装置
CN104916251B (zh) * 2015-07-10 2018-09-28 京东方科技集团股份有限公司 栅极驱动电路、触控显示装置和触控显示驱动方法
CN105469757A (zh) * 2015-12-10 2016-04-06 深圳市华星光电技术有限公司 显示面板扫描驱动方法
CN105390086B (zh) * 2015-12-17 2018-03-02 武汉华星光电技术有限公司 栅极驱动电路和使用栅极驱动电路的显示器
CN105355187B (zh) * 2015-12-22 2018-03-06 武汉华星光电技术有限公司 基于ltps半导体薄膜晶体管的goa电路
CN105390115B (zh) * 2015-12-24 2018-10-16 深圳市华星光电技术有限公司 液晶显示设备及goa电路
US9972261B2 (en) 2015-12-24 2018-05-15 Shenzhen China Star Optoelectronics Technology Co. Ltd. Liquid crystal display device and GOA circuit
CN105632441B (zh) * 2016-02-26 2018-03-27 深圳市华星光电技术有限公司 栅极驱动电路
CN105976775B (zh) * 2016-05-18 2019-01-15 武汉华星光电技术有限公司 基于ltps半导体薄膜晶体管的goa电路
CN105931611B (zh) * 2016-07-08 2018-03-27 深圳市华星光电技术有限公司 一种阵列基板行驱动电路
CN106409262A (zh) * 2016-11-28 2017-02-15 深圳市华星光电技术有限公司 Goa驱动电路及液晶显示装置
CN106601206B (zh) * 2016-12-30 2019-01-11 深圳市华星光电技术有限公司 Goa栅极驱动电路以及液晶显示装置
CN106548759B (zh) * 2017-01-14 2018-09-18 深圳市华星光电技术有限公司 一种goa电路及液晶显示器
CN108665860B (zh) * 2017-03-30 2019-11-08 京东方科技集团股份有限公司 一种goa单元及其驱动方法、goa驱动电路、显示装置
CN106847227B (zh) * 2017-04-17 2018-11-02 深圳市华星光电半导体显示技术有限公司 Goa电路驱动架构
US10386663B2 (en) * 2017-08-14 2019-08-20 Shenzhen China Star Optoelectronics Semiconductor Display Technology Co., Ltd. GOA circuit and liquid crystal display device
US10777107B2 (en) * 2017-10-31 2020-09-15 Wuhan China Star Optoelectronics Technology Co., Ltd. Array substrate, testing method and display apparatus
CN107799083B (zh) * 2017-11-17 2020-02-07 武汉华星光电技术有限公司 一种goa电路
CN107731195B (zh) * 2017-11-22 2019-10-11 武汉华星光电技术有限公司 一种nmos型goa电路及显示面板
CN109949758B (zh) * 2017-12-21 2022-01-04 咸阳彩虹光电科技有限公司 基于栅极驱动电路的扫描信号补偿方法及装置
CN108766356B (zh) * 2018-05-18 2020-07-07 北京大学深圳研究生院 集成栅极驱动电路及显示设备
US10747035B2 (en) * 2018-07-26 2020-08-18 Shenzhen China Star Optoelectronics Technology Co., Ltd. Liquid crystal panel
CN109410886A (zh) * 2018-12-27 2019-03-01 深圳市华星光电半导体显示技术有限公司 Goa电路
CN110070817B (zh) * 2019-04-08 2020-11-10 武汉华星光电半导体显示技术有限公司 Goa驱动单元、goa电路及显示装置
CN110113016A (zh) * 2019-04-24 2019-08-09 华南理工大学 一种基于薄膜晶体管的自举结构放大器及芯片
CN110136669B (zh) * 2019-05-17 2022-01-11 武汉京东方光电科技有限公司 移位寄存器单元及其驱动方法和栅极驱动电路
CN110930920B (zh) * 2019-11-21 2022-07-12 Tcl华星光电技术有限公司 一种显示装置及其驱动方法
CN112992091B (zh) * 2021-02-04 2022-10-18 业成科技(成都)有限公司 多输出之单级闸极驱动电路与闸极驱动装置
CN113658539B (zh) * 2021-08-23 2023-10-31 深圳市华星光电半导体显示技术有限公司 Goa电路
CN114842786A (zh) * 2022-04-26 2022-08-02 Tcl华星光电技术有限公司 Goa电路及显示面板
CN114898721A (zh) * 2022-06-22 2022-08-12 Tcl华星光电技术有限公司 阵列基板及显示面板

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101976580A (zh) * 2010-10-12 2011-02-16 友达光电股份有限公司 可增加驱动能力的第n级移位寄存器及其方法
CN102226940A (zh) * 2010-06-25 2011-10-26 友达光电股份有限公司 显示面板上的移位暂存器以及栅极驱动阵列结构
CN102982846A (zh) * 2012-07-18 2013-03-20 友达光电股份有限公司 用于光感应触控面板的移位暂存器
CN103021360A (zh) * 2012-10-11 2013-04-03 友达光电股份有限公司 可防止漏电的栅极驱动电路
CN103151076A (zh) * 2012-11-02 2013-06-12 友达光电股份有限公司 移位寄存器

Family Cites Families (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4912186B2 (ja) * 2007-03-05 2012-04-11 三菱電機株式会社 シフトレジスタ回路およびそれを備える画像表示装置
KR101307414B1 (ko) * 2007-04-27 2013-09-12 삼성디스플레이 주식회사 게이트 구동 회로 및 이를 포함하는 액정 표시 장치
KR20100006063A (ko) * 2008-07-08 2010-01-18 삼성전자주식회사 게이트 드라이버 및 이를 갖는 표시장치
KR101478667B1 (ko) * 2008-10-16 2015-01-02 삼성디스플레이 주식회사 표시 장치 및 이의 구동 방법
US7817771B2 (en) * 2008-12-15 2010-10-19 Au Optronics Corporation Shift register
KR101579082B1 (ko) * 2008-12-23 2015-12-22 삼성디스플레이 주식회사 게이트 구동회로 및 이의 구동 방법
TWI400686B (zh) * 2009-04-08 2013-07-01 Au Optronics Corp 液晶顯示器之移位暫存器
JP2010250030A (ja) * 2009-04-15 2010-11-04 Sharp Corp シフトレジスタおよびそれを備えた表示装置、ならびにシフトレジスタの駆動方法
CN101552040B (zh) 2009-04-28 2011-04-13 友达光电股份有限公司 液晶显示器的移位寄存器
WO2011055570A1 (ja) * 2009-11-04 2011-05-12 シャープ株式会社 シフトレジスタならびにそれを備えた走査信号線駆動回路および表示装置
TWI384756B (zh) * 2009-12-22 2013-02-01 Au Optronics Corp 移位暫存器
KR101685590B1 (ko) * 2010-05-18 2016-12-13 삼성디스플레이 주식회사 입체 영상 표시 장치
CN102651187B (zh) * 2011-05-16 2014-09-24 京东方科技集团股份有限公司 移位寄存器单元电路、移位寄存器、阵列基板及液晶显示器
KR101904277B1 (ko) * 2011-12-02 2018-10-05 엘지디스플레이 주식회사 액정 디스플레이 장치
CN103310755B (zh) 2013-07-03 2016-01-13 深圳市华星光电技术有限公司 阵列基板行驱动电路
US9437324B2 (en) * 2013-08-09 2016-09-06 Boe Technology Group Co., Ltd. Shift register unit, driving method thereof, shift register and display device
CN103745700B (zh) * 2013-12-27 2015-10-07 深圳市华星光电技术有限公司 自修复型栅极驱动电路

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102226940A (zh) * 2010-06-25 2011-10-26 友达光电股份有限公司 显示面板上的移位暂存器以及栅极驱动阵列结构
CN101976580A (zh) * 2010-10-12 2011-02-16 友达光电股份有限公司 可增加驱动能力的第n级移位寄存器及其方法
CN102982846A (zh) * 2012-07-18 2013-03-20 友达光电股份有限公司 用于光感应触控面板的移位暂存器
CN103021360A (zh) * 2012-10-11 2013-04-03 友达光电股份有限公司 可防止漏电的栅极驱动电路
CN103151076A (zh) * 2012-11-02 2013-06-12 友达光电股份有限公司 移位寄存器

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