CN105374333B - 显示面板与栅极驱动架构 - Google Patents

显示面板与栅极驱动架构 Download PDF

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CN105374333B
CN105374333B CN201510923388.7A CN201510923388A CN105374333B CN 105374333 B CN105374333 B CN 105374333B CN 201510923388 A CN201510923388 A CN 201510923388A CN 105374333 B CN105374333 B CN 105374333B
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CN105374333A (zh
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黄笑宇
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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 US14/907,304 priority patent/US20170169786A1/en
Priority to PCT/CN2016/070304 priority patent/WO2017096689A1/zh
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    • 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
    • G09G3/3674Details of drivers for scan electrodes
    • G09G3/3677Details of drivers for scan electrodes suitable for active matrices only
    • 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 
    • 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
    • G02F1/1333Constructional arrangements; Manufacturing methods
    • G02F1/1345Conductors connecting electrodes to cell terminals
    • G02F1/13452Conductors connecting driver circuitry and terminals of panels
    • 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 
    • 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
    • G02F1/1333Constructional arrangements; Manufacturing methods
    • G02F1/1345Conductors connecting electrodes to cell terminals
    • G02F1/13454Drivers integrated on the active matrix substrate
    • 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
    • G09G2300/04Structural and physical details of display devices
    • G09G2300/0421Structural details of the set of electrodes
    • GPHYSICS
    • G09EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09GARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G2310/00Command of the display device
    • G09G2310/02Addressing, scanning or driving the display screen or processing steps related thereto
    • G09G2310/0264Details of driving circuits
    • G09G2310/0281Arrangement of scan or data electrode driver circuits at the periphery of a panel not inherent to a split matrix structure
    • GPHYSICS
    • G09EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09GARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G2330/00Aspects of power supply; Aspects of display protection and defect management
    • G09G2330/02Details of power systems and of start or stop of display operation

Abstract

本案涉及一种显示面板,所述显示面板具有一显示区域、在所述显示区域的多条依序排列的奇数级与偶数级扫描线、以及位于所述显示区域两侧的非显示区域,并包括多个奇数级栅极薄膜覆晶,设置于所述非显示区域的第一侧,每一所述奇数级栅极薄膜覆晶具有个别对应于每一所述奇数级扫描线的多个奇数级扫描输出通道;以及多个偶数级栅极薄膜覆晶,设置于所述非显示区域上所述第一侧的相对异侧之第二侧,每一所述偶数级栅极薄膜覆晶具有个别对应于每一所述偶数级扫描线的多个偶数级扫描输出通道。

Description

显示面板与栅极驱动架构
技术领域
本案涉及一种显示面板与栅极驱动架构,特别是用于薄膜晶体管液晶显示器(Thin Film Transistor Liquid Crystal Display,TFT-LCD)的显示面板与栅极驱动架构。
背景技术
薄膜晶体管液晶显示器(Thin Film Transistor Liquid Crystal Display,TFT-LCD)是当前平板显示的主要品种。TFT-LCD主要驱动原理,如图1所示,系统主板1将R/G/B三色压缩信号、控制信号及动力通过线材与印刷电路板10(Print Circuit Board,PCB)上的连接器相连接,PCB板10通过源极薄膜覆晶(Source-Chip on Film,S-COF)11和栅极薄膜覆晶(Gate-Chip on Film,G-COF)12与显示区13连接,从而使得LCD获得所需的电源、信号。
其中,源极薄膜覆晶11与栅极薄膜覆晶12之间,以及不同栅极薄膜覆晶之间的信号传输都是通过扇出区14的布局走线完成的。随着显示面板的窄边框需求渐增,栅极侧扇出区的走线空间日趋减少,布局走线难度日益增大,线宽也不断缩小,因此需要提出降低了扇出区的走线密度的栅极驱动架构。
发明内容
本发明为增加栅极侧扇出区的走线空间,将传统单侧驱动架构中的栅极薄膜覆晶,排在显示面板的两侧。并利用多个奇数级栅极薄膜覆晶的输出,作为偶数级栅极薄膜覆晶的启始信号,达到减少扇出区走线密度的目的。
本发明一实施例提出了一种显示面板,具有一显示区域、在所述显示区域的多条依序排列的奇数级与偶数级扫描线、以及位于所述显示区域两侧的非显示区域,所述面板包括多个奇数级栅极薄膜覆晶,设置于所述非显示区域的第一侧,每一所述奇数级栅极薄膜覆晶具有个别对应于每一所述奇数级扫描线的多个奇数级扫描输出通道;以及多个偶数级栅极薄膜覆晶,设置于所述非显示区域上所述第一侧的相对异侧之第二侧,每一所述偶数级栅极薄膜覆晶具有个别对应于每一所述偶数级扫描线的多个偶数级扫描输出通道;其中,所述多个奇数级栅极薄膜覆晶中的第一奇数级栅极薄膜覆晶依据一第一启始信号依序驱动每一所述奇数级扫描输出通道,并且在所述第一奇数级栅极薄膜覆晶中,第一奇数级扫描输出通道通过第一奇数级扫描线将一扫描驱动信号输出至所述多个偶数级栅极薄膜覆晶的一第一偶数级栅极薄膜覆晶,使所述扫描驱动信号作为所述第一偶数级栅极薄膜覆晶的一第二启始信号,以依序驱动每一所述偶数级扫描输出通道。
较优选地,所述多个奇数级栅极薄膜覆晶中第一奇数级栅极薄膜覆晶以外的其余奇数级栅极薄膜覆晶依据另一扫描驱动信号相对应依序驱动每一奇数级扫描输出通道。
较优选地,所述多个偶数级栅极薄膜覆晶中第一偶数级栅极薄膜覆晶以外的其余偶数级栅极薄膜覆晶依据另一扫描驱动信号相对应依序驱动每一偶数级扫描输出通道。
较优选地,所述多个奇数级栅极薄膜覆晶的每一奇数级扫描输出通道与所述多个偶数级栅极薄膜覆晶的每一偶数级扫描输出信道的驱动方式为互相间隔交错驱动。
较优选地,所述第一启始信号包括初始脉冲垂直信号(start pulse verticalsignal,STV),所述初始脉冲垂直信号作为所述奇数级栅极薄膜覆晶的每个画面刷新的启动信号。
本发明提供一种可以降低了扇出区的走线密度的栅极驱动架构,增加走线空间,降低走线难度,从而提升产品品质,提升产品竞争力。
附图说明
图1是传统栅极驱动面板的架构示意图;
图2是依据本发明一实施例的栅极驱动面板的架构示意图;
图3是图2的细部架构示意图;以及
图4是图3的栅极薄膜覆晶的扫描输出通道在显示面板工作中的波形图。
具体实施方式
以下各实施例的说明是参考附加的图式,用以例示本发明可用以实施的特定实施例。本发明所提到的方向用语,例如「上」、「下」、「前」、「后」、「左」、「右」、「内」、「外」、「侧面」等,仅是参考附加图式的方向。因此,使用的方向用语是用以说明及理解本发明,而非用以限制本发明。
本发明为增加栅极侧扇出区的走线空间,将传统单侧驱动架构中的栅极薄膜覆晶,排布在面板的两侧,请参照图2与图3,图2是依据本发明一实施例的栅极驱动面板的架构示意图,图3是图2的细部架构示意图,如图2所示,显示面板2具有一显示区域20、在所述显示区域20的多条依序排列的奇数级与偶数级扫描线(如奇数级扫描线GL1与偶数极扫描线GL2)、以及位于所述显示区域20两侧的非显示区域21,所述面板2包括多个奇数级栅极薄膜覆晶210,设置于所述非显示区域21的第一侧201,每一所述奇数级栅极薄膜覆晶210具有个别对应于每一所述奇数级扫描线的多个奇数级扫描输出通道Ch_O;以及多个偶数级栅极薄膜覆晶210’,设置于所述非显示区域21上所述第一侧201的相对异侧之第二侧202,每一所述偶数级栅极薄膜覆晶210’具有个别对应于每一所述偶数级扫描线的多个偶数级扫描输出通道Ch_E。
如图3所示,所述多个奇数级栅极薄膜覆晶210中的第一奇数级栅极薄膜覆晶210_1依据一第一启始信号STV依序驱动每一所述奇数级扫描输出通道Ch_O,并且在所述第一奇数级栅极薄膜覆晶210_1中,第一奇数级扫描输出通道通Ch_O_1过第一奇数级扫描线GL1将一扫描驱动信号S_Gate1输出至所述多个偶数级栅极薄膜覆晶210’的一第一偶数级栅极薄膜覆晶210_1’,使所述扫描驱动信号S_Gate1作为所述第一偶数级栅极薄膜覆晶的一第二启始信号S_ini,以依序驱动每一所述偶数级扫描输出通道Ch_E。
较优选地,所述多个奇数级栅极薄膜覆晶210中第一奇数级栅极薄膜覆晶210_1以外的其余奇数级栅极薄膜覆晶210依据另一扫描驱动信号STV’相对应依序驱动每一奇数级扫描输出通道Ch_O。
较优选地,所述多个偶数级栅极薄膜覆晶210’中第一偶数级栅极薄膜覆晶210_1’以外的其余偶数级栅极薄膜覆晶210’依据另一扫描驱动信号S_ini’相对应依序驱动每一偶数级扫描输出通道Ch_E。
较优选地,所述多个奇数级栅极薄膜覆晶210的每一奇数级扫描输出通道Ch_O与所述多个奇数级栅极薄膜覆晶210’的每一偶数级扫描输出信道Ch_E的驱动方式为互相间隔交错驱动。
较优选地,所述第一启始信号包括初始脉冲垂直信号(start pulse verticalsignal,STV),所述初始脉冲垂直信号作为所述奇数级栅极薄膜覆晶210的每个画面刷新的启动信号,对于栅极薄膜覆晶来说,每个画面仅需要一次。其中,当第一启始信号STV传输至第一奇数栅极薄膜覆晶210_1,第一奇数栅极薄膜覆晶210_1接收到STV后,输出的所述扫描驱动信号S_Gate1会连接至第一偶数级栅极薄膜覆晶210_1’作为第二侧202的第二启始信号S_ini,且从第一奇数栅极薄膜覆晶210_1的第二路输出开始,其输出信号仅作为栅极的开启信号,而不会再连接至第二侧202的偶数级栅极薄膜覆晶。待一个画面刷新完成后,PCB会产生下一个第一启始信号,传输至所述第一奇数栅极薄膜覆晶210_1,即每个画面,第一侧201和第二侧202仅会有一个第一启始信号STV与第二启始信号S_ini。
也就是说,利用第一奇数级栅极薄膜覆晶210_1输出的扫描输出信号S_Gate1,作为第一偶数级栅极薄膜覆晶210_1’的第二启始信号S_ini,从图3可看出,第一启始信号STV为第一奇数级栅极薄膜覆晶210_1的启始信号,第一奇数级栅极薄膜覆晶210_1输出的扫描驱动信号S_Gate1;而S_Gate1作为栅极薄膜覆晶210_1’的第二启始信号S_ini,而第一偶数级栅极薄膜覆晶210_1’输出扫描驱动信号为S_Gate2。
图4是图3的栅极薄膜覆晶的扫描输出通道在显示面板工作中的波形图,其中,第一奇数级栅极薄膜覆晶210_1中的所述第一奇数级扫描输出通道Ch_O_1对应于第一奇数级扫描线GL1,则第一偶数级栅极薄膜覆晶210_1’的第一偶数级扫描输出通道Ch_E_1会对应于所述第一奇数级扫描线GL1的下一条偶数级扫描线GL2,并依序地,栅极薄膜覆晶210_1中的第二奇数级扫描输出通道Ch_O_2对应于奇数级扫描线GL3,而第一偶数级栅极薄膜覆晶210_1’的第二偶数级扫描输出通道Ch_E_2会对应于所述奇数级扫描线GL3的下一条偶数级扫描线GL4。
本发明搭配特定的栅极薄膜覆晶输出时序,最终实现栅极薄膜覆晶的功能,并且将单侧的走线空间拓展为双侧,增加走线空间,降低走线难度,从而提升产品品质,提升产品竞争力。
综上所述,虽然本发明已以优选实施例揭露如上,但上述优选实施例并非用以限制本发明,本领域的普通技术人员,在不脱离本发明的精神和范围内,均可作各种更动与润饰,因此本发明的保护范围以权利要求界定的范围为准。

Claims (4)

1.一种显示面板,具有一显示区域、在所述显示区域的多条依序排列的奇数级与偶数级扫描线、以及位于所述显示区域两侧的非显示区域,其特征在于,包括:
多个奇数级栅极薄膜覆晶,设置于所述非显示区域的第一侧,每一所述奇数级栅极薄膜覆晶具有个别对应于每一所述奇数级扫描线的多个奇数级扫描输出通道;以及
多个偶数级栅极薄膜覆晶,设置于所述非显示区域上所述第一侧的相对异侧之第二侧,每一所述偶数级栅极薄膜覆晶具有个别对应于每一所述偶数级扫描线的多个偶数级扫描输出通道;
其中,所述多个奇数级栅极薄膜覆晶中的第一奇数级栅极薄膜覆晶依据一第一启始信号依序驱动每一所述奇数级扫描输出通道,并且在所述第一奇数级栅极薄膜覆晶中,第一奇数级扫描输出通道通过第一奇数级扫描线将一扫描驱动信号输出至所述多个偶数级栅极薄膜覆晶的一第一偶数级栅极薄膜覆晶,使所述扫描驱动信号作为所述第一偶数级栅极薄膜覆晶的一第二启始信号,以依序驱动每一所述偶数级扫描输出通道,所述多个奇数级栅极薄膜覆晶的每一奇数级扫描输出通道与所述多个偶数级栅极薄膜覆晶的每一偶数级扫描输出信道的驱动方式为互相间隔交错驱动;
其中所述多个奇数级栅极薄膜覆晶中第一奇数级栅极薄膜覆晶以外的其余奇数级栅极薄膜覆晶依据另一扫描驱动信号相对应依序驱动每一奇数级扫描输出通道;
所述多个偶数级栅极薄膜覆晶中第一偶数级栅极薄膜覆晶以外的其余偶数级栅极薄膜覆晶依据另一扫描驱动信号相对应依序驱动每一偶数级扫描输出通道;
在每个画面帧中,所述显示面板仅生成一个第一启始信号与一个第二启始信号。
2.如权利要求1所述的显示面板,其特征在于,所述第一启始信号包括初始脉冲垂直信号,所述初始脉冲垂直信号作为所述奇数级栅极薄膜覆晶的每个画面刷新的启动信号。
3.一种栅极驱动架构,位于一显示面板中,所述显示面板具有多条依序排列的奇数级与偶数级扫描线,其特征在于,包括:
多个奇数级栅极薄膜覆晶,设置于所述显示面板的第一侧中,每一所述奇数级`栅极薄膜覆晶具有个别对应于每一所述奇数级扫描线的多个奇数级扫描输出通道;以及
多个偶数级栅极薄膜覆晶,设置于所述显示面板中所述第一侧的相对异侧的第二侧,每一所述偶数级栅极薄膜覆晶具有个别对应于每一所述偶数级扫描线的多个偶数级扫描输出通道;
其中,所述多个奇数级栅极薄膜覆晶中的第一奇数级栅极薄膜覆晶依据一第一启始信号依序驱动每一所述奇数级扫描输出通道,并且在所述第一奇数级栅极薄膜覆晶中,第一奇数级扫描输出通道通过第一奇数级扫描线将一扫描驱动信号输出至所述多个偶数级栅极薄膜覆晶的一第一偶数级栅极薄膜覆晶,使所述扫描驱动信号作为所述第一偶数级栅极薄膜覆晶的一第二启始信号,以依序驱动每一所述偶数级扫描输出通道;所述多个奇数级栅极薄膜覆晶的每一奇数级扫描输出通道与所述多个偶数级栅极薄膜覆晶的每一偶数级扫描输出信道的驱动方式为互相间隔交错驱动;
所述多个奇数级栅极薄膜覆晶中第一奇数级栅极薄膜覆晶以外的其余奇数级栅极薄膜覆晶依据另一扫描驱动信号相对应依序驱动每一奇数级扫描输出通道;
所述多个偶数级栅极薄膜覆晶中第一偶数级栅极薄膜覆晶以外的其余偶数级栅极薄膜覆晶依据另一扫描驱动信号相对应依序驱动每一偶数级扫描输出通道;
在每个画面帧中,所述显示面板仅生成一个第一启始信号与一个第二启始信号。
4.如权利要求3所述的栅极驱动架构,其特征在于,所述第一启始信号包括初始脉冲垂直信号,所述初始脉冲垂直信号作为所述奇数级栅极薄膜覆晶的每个画面刷新的启动信号。
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