CN109254435B - 一种静电防护结构及显示装置 - Google Patents

一种静电防护结构及显示装置 Download PDF

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CN109254435B
CN109254435B CN201811332323.5A CN201811332323A CN109254435B CN 109254435 B CN109254435 B CN 109254435B CN 201811332323 A CN201811332323 A CN 201811332323A CN 109254435 B CN109254435 B CN 109254435B
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signal line
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CN109254435A (zh
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黄笑宇
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HKC Co Ltd
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    • 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
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    • 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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Abstract

本发明是有关于一种显示面板的静电防护结构及显示装置，其特征在于，包括：驱动芯片，用于发送驱动信号；多条信号线，设置于显示区，依据所述显示区的水平方向，将所述多条信号线均分为第一信号线区及第二信号线区，所述第一信号线区内的每一所述信号线设有一正极性开关，所述第二信号线区内的每一所述信号线设有一负极性开关，所述正极性开关及所述负极性开关电性连接所述驱动芯片；以及静电防护电路，每一所述静电防护电路包括一正向二极管及一反向二极管；其中，当所述第一信号线区输出为低，而所述第二信号线区输出为高时，所述显示区不刷新。

Description

一种静电防护结构及显示装置
技术领域
本发明涉及显示领域，尤其涉及一种静电防护结构及显示装置。
背景技术
显示面板(Thin Film Transistor Liquid Crystal Display,TFT-LCD)是当前平板显示的主要品种之一，已经成为了现代IT、视讯产品中重要的显示平台。显示面板(ThinFilm Transistor Liquid Crystal Display,TFT-LCD)主要驱动原理，系统主板将红(R)、绿(G)、蓝(B)压缩信号、控制信号及动力通过线材与印刷电路板(Printed circuit board,PCB)上的电子连接器(connector)相连接，数据经过印刷电路板(Printed circuit board,PCB)上的驱动芯片(Timing Controller IC,TCON IC)处理后，经印刷电路板(Printedcircuit board,PCB)，通过源极晶粒软膜封装(Source-Chip on Film,S-COF)和栅极晶粒软膜封装(Gate-Chip on Film,G-COF)与显示区连接，从而使得液晶显示器(LiquidCrystal Display,LCD)获得所需的电源与信号。
传统的面板刷新率为60Hz，指的是屏幕每秒被刷新60次，每一次刷新都是对显示区域每一个显示像素进行充电和放电动作。当画面处于快速运动的状态(譬如播放视频、游戏、滚动等)，这个刷新频率还是有必要的；但如果是静态画面，仍然会不停的刷新，将造成很多不必要的功耗损失。
发明内容
为了解决上述技术问题，本发明提供一个在仅有信号传输走线的传统设计基础上，增加额外的结构以实现静电放电(Electrostatic Discharge,ESD)防护、选择性刷新等有益效果。
本发明的目的及解决其技术问题采用以下技术方案来实现的，依据本发明的提出一种显示面板的静电防护结构，其特征在于，包括：驱动芯片，用于发送驱动信号；多条信号线，设置于显示区，依据所述显示区的水平方向，将所述多条信号线均分为第一信号线区及第二信号线区，所述第一信号线区内的每一所述信号线设有一正极性开关，所述第二信号线区内的每一所述信号线设有一负极性开关，所述正极性开关及所述负极性开关电性连接所述驱动芯片；以及静电防护电路，每一所述静电防护电路包括一正向二极管及一反向二极管；其中，当所述第一信号线区输出为低，而所述第二信号线区输出为高时，所述显示区不刷新。
在本发明的实施例中，所述正向二极管具有单向导电性。
在本发明的实施例中，所述反向二极管具有单向导电性。
在本发明的实施例中，当所述正极性开关及所述负极性开关开启时输出端与形成电性连接。
在本发明的实施例中，所述输出端与输入端形成电性连接时，所述输出端的输出值与对应的所述输入端的输入值相等。
在本发明的实施例中，所述正极性开关及所述负极性开关关闭时，所述输出端的输出被所述二极管反向截止。
在本发明的实施例中，所述输出端的输出被所述二极管反向截止时，与所述输出端对应的所述输入端无输入值。
在本发明的实施例中，所述显示区显示时，时序控制器会储存前一帧画面，并与当前画面比对，当前后二帧画面不同时，在所述第一信号线区所述驱动信号输出值为高(H)，而所述第二信号线区所述驱动信号输出值为低(L)。
在本发明的实施例中，所述显示区显示时，时序控制器会储存前一帧画面，并与当前画面比对，当前后二帧画面相同时，在所述第一信号线区所述驱动信号输出值为低(L)，而所述第二信号线区所述驱动信号输出值为高(H)，使所述极输出端与对应的所述面版输入端断开而显示区不刷新。
本发明的目的及解决其技术问题更可采用以下技术措施进一步实现。依据本发明提出的一种显示装置，所述显示装置包括一显示面板，所述显示面板包含多个像素，用以显示影像，其特征在于，包括上述静电防护结构。
透过本发明提出一个静电防护结构设计，在仅有信号传输走线的传统设计基础上，增加额外的结构以实现静电放电(Electrostatic Discharge,ESD)防护、选择性刷新等有益效果。
附图说明
图1是显示面板驱动架构示意图。
图2是本发明实施例提供的静电防护结构设计示意图。
图3是本发明实施例提供的单一栅极的静电防护电路示意图。
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。
附图和说明被认为在本质上是示出性的，而不是限制性的。在图中，结构相似的单元是以相同标号表示。另外，为了理解和便于描述，附图中示出的每个组件的尺寸和厚度是任意示出的，但是本发明不限于此。
另外，在说明书中，除非明确地描述为相反的，否则词语“包括”将被理解为意指包括所述组件，但是不排除任何其它组件。此外，在说明书中，“在......上”意指位于目标组件上方或者下方，而不意指必须位于基于重力方向的顶部上。
为更进一步阐述本发明为达成预定发明目的所采取的技术手段及功效，以下结合附图及较佳实施例，对依据本发明提出的实现静电放电(Electrostatic Discharge,ESD)防护、选择性刷新其具体实施方式、结构、特征及其功效，详细说明如后。
图1是显示面板驱动架构示意图。图1列出了本发明的基本思路,显示面板(ThinFilm Transistor Liquid Crystal Display,TFT-LCD)是当前平板显示的主要品种之一，已经成为了现代IT、视讯产品中重要的显示平台。显示面板(Thin FilmTransistor LiquidCrystal Display,TFT-LCD)主要驱动原理，系统主板将红(R)、绿(G)、蓝(B)压缩信号、控制信号及动力通过线材与印刷电路板(Printed circuit board,PCB)110上的电子连接器(connector)相连接，数据经过印刷电路板(Printed circuit board,PCB)110上的驱动芯片(Timing Controller IC,TCON IC)120处理后，经印刷电路板(Printed circuit board,PCB)110的，通过源极晶粒软膜封装(Source-Chip on Film,S-COF)130和栅极晶粒软膜封装(Gate-Chip on Film,G-COF)140与显示区100连接，从而使得液晶显示器(LiquidCrystal Display,LCD)获得所需的电源与信号。
在以下实施例中，仅以栅极为实施例说明，并不以此为限，本案实施方式可同时应用于源极与栅极。
请续同时参照图1、图2及图3，图2是本发明实施例提供的静电防护结构设计示意图。图3是本发明实施例提供的单一栅极的静电防护电路示意图。如图2所示，静电防护结构，其特征在于，驱动芯片(Timing Controller IC,TCON IC)120、栅极晶粒软膜封装(Gate-Chip on Film,G-COF)140与显示区100。
本发明的提出一种静电防护结构，包括显示区和设置于显示区侧的数个栅极140，其特征在于，包括：驱动芯片(Timing Controller IC,TCON IC)120用于发送驱动信号；多条信号线，设置于所述显示区(如图1)的所述栅极140侧，依据所述显示区的水平方向，将所述多条信号线均分为第一信号线区及第二信号线区，所述第一信号线区内的每一所述信号线设有一正极性开关(MOS,M1)，所述第二信号线区内的每一所述信号线设有一负极性开关(MOS,M2)，所述正极性开关(MOS,M1)及所述负极性开关(MOS,M2)电性连接所述驱动芯片(Timing Controller IC,TCON IC)120；以及静电防护电路141，以一对一方式对应设置于所述栅极，其中，每一所述静电防护电路包括一正向二极管(D1)及一反向二极管(D1)；其中，当所述第一信号线区输出为低(L)，而所述第二信号线区输出为高(H)时，所述显示区不刷新。
更进一步来说，在图3中，D1为二极管，具有单向导电性。M1为正极性开关MOS以下称为正极性开关(MOS,M1)，当其栅极(Gate)电压高(H)时，正极性开关(MOS,M1)开启，当其栅极(Gate)电压为低(L)时，正极性开关(MOS,M1)关闭；M2为负极性开关MOS以下称为负极性开关(MOS,M2)，当其栅极电压低(L)时负极性开关(MOS,M2)开启，当其栅极(Gate)电压为高(H)时，负极性开关(MOS,M2)关闭；控制讯号C为驱动芯片(Timing Controller IC,TCONIC)120输出，连接至正极性开关(MOS,M1)、负极性开关(MOS,M2)的栅极(Gate)。将面板水平方向均分为两个部分，其中第一部分的正极性开关(MOS,M1)，第二部分的负极性开关(MOS,M2)。以垂直分辨率为768的HD分辨率机种具体，中的栅极输出端(Gate output)n即为栅极输出端(Gate output)384，面板输入端(Cell Input)n即为面板输入端(Cell Input)384；栅极输出端(Gate output)n+1即为栅极输出端(Gate output)385，面板输入端(CellInput)n+1即为面板输入端(Cell Input)385；栅极输出端(Gate output)2n即为栅极输出端(Gate output)768，面板输入端(Cell Input)2n即为面板输入端(Cell Input)768；当正极性开关(MOS,M1)、负极性开关(MOS,M2)开启时，此时栅极输出端(Gate output)可以与对应的面板输入端(Cell Input)连接，此时栅极输出端(Gate output)＝面板输入端(CellInput)；当正极性开关(MOS,M1)、负极性开关(MOS,M2)关闭时，此时栅极输出端(Gateoutput)的输出被反相二极管(D1)反向截止，此时对应的面板输入端(Cell Input)无输出。
当面板显示时，控制讯号C由驱动芯片(Timing Controller IC,TCON IC)120控制。系统正常运行时，驱动芯片(Timing Controller IC,TCON IC)120会存储前一帧画面并与当前帧画面对比，当前后两帧画面不同时，在栅极输出端(Gate output)1～栅极输出端(Gate output)n输出时，控制讯号C输出为高(H)，在栅极输出端(Gate output)n+1～栅极输出端(Gate output)2n输出时，控制讯号C输出为低(L)。此时栅极输出端(Gate output)＝面板输入端(Cell Input)。面板正常显示。当两帧画相同时，在栅极输出端(Gateoutput)1～栅极输出端(Gate output)n输出时，控制讯号C输出为低(L)，在栅极输出端(Gate output)n+1～栅极输出端(Gate output)2n输出时，控制讯号C输出为高(H)。此时栅极输出端(Gate output)与面板输入端(Cell Input)断开，面板输入端(Cell Input)无输出。此时源极晶粒软膜封装(Source-Chip on Film,S-COF)的输出无法输入至显示区域中，显示区不刷新，不会造成功耗的损失；
当面板(Cell)垂直方向的第一部分正极性开关(MOS,M1)开启时，此时第二部分负极性开关(MOS,M2)关闭，则第二部分的栅极输出端(Gate output)与面板输入端(Cellinput)断开。此时外部的静电放电(Electrostatic Discharge,ESD)不会通过栅极输出端(Gate output)传导至面板(Cell)内部，可以降低面板(Cell)内被静电放电(Electrostatic Discharge,ESD)击伤的概率；当负极性开关(MOS,M2)开启，正极性开关(MOS,M1)关闭时，原理相同，可以降低第一部分面板(Cell)内被静电放电(ElectrostaticDischarge,ESD)击伤的概率。
综上，可以实现ESD及选择性刷新的有益效果。
通过图2及图3的处理方式，具有下列的优点当两帧画相同时，在栅极输出端(Gateoutput)1～栅极输出端(Gate output)n输出时，控制讯号C输出为低(L)，在栅极输出端(Gate output)n+1～栅极输出端(Gate output)2n输出时，控制讯号C输出为高(H)。此时栅极输出端(Gate output)与面板输入端(Cell Input)断开，面板输入端(Cell Input)无输出。此时源极晶粒软膜封装(Source-Chip on Film,S-COF)的输出无法输入至显示区域中，显示区不刷新，不会造成功耗的损失。
在某些实施例中，当显示面板(Cell)垂直方向的第一部分正极性开关(MOS,M1)开启时，此时第二部分负极性开关(MOS,M2)关闭，则第二部分的栅极输出端(Gate output)与面板输入端(Cell input)断开。此时外部的静电放电(Electrostatic Discharge,ESD)不会通过栅极输出端(Gate output)传导至面板(Cell)内部，可以降低面板(Cell)内被静电放电(Electrostatic Discharge,ESD)击伤的概率；当负极性开关(MOS,M2)开启，正极性开关(MOS,M1)关闭时，原理相同，可以降低第一部分面板(Cell)内被静电放电(Electrostatic Discharge,ESD)击伤的概率。
基于以上方法可以实现：在仅有信号传输走线的传统设计基础上，增加额外的结构以实现静电放电(Electrostatic Discharge,ESD)防护、选择性刷新等有益效果。
“在本发明一实施例中”与“在各种实施例中”等用语被重复地使用。所述用语通常不是指相同的实施例；但它亦可以是指相同的实施例。“包含”、“具有”及“包括”等用词是同义词，除非其前后文意显示出其它意思。
以上所述，仅是本发明的较佳实施例而已，并非对本发明作任何形式上的限制，虽然本发明已以较佳实施例揭露如上，然而幷非用以限定本发明，任何熟悉本专业的技术人员，在不脱离本发明技术方案范围内，当可利用上述揭示的技术内容作出些许更动或修饰为等同变化的等效实施例，但凡是未脱离本发明技术方案的内容，依据本发明的技术实质对以上实施例所作的任何简单修改、等同变化与修饰，均仍属本发明技术方案的范围内。

Claims (10)

1.一种显示面板的静电防护结构，其特征在于，包括：
驱动芯片，用于发送驱动信号；
多条信号线，设置于显示区，依据所述显示区的水平方向，将所述多条信号线均分为第一信号线区及第二信号线区，所述第一信号线区内的每一所述信号线设有一正极性开关，所述第二信号线区内的每一所述信号线设有一负极性开关，所述正极性开关及所述负极性开关电性连接所述驱动芯片；以及
静电防护电路，每一所述静电防护电路包括一正向二极管及一反向二极管；
其中，当所述第一信号线区输出为低，而所述第二信号线区输出为高时，所述显示区不刷新。
2.如权利要求1所述的显示面板的静电防护结构，其特征在于，所述正向二极管具有单向导电性。
3.如权利要求1所述的显示面板的静电防护结构，其特征在于，所述反向二极管具有单向导电性。
4.如权利要求1所述的显示面板的静电防护结构，其特征在于，当所述正极性开关及所述负极性开关开启时，所述静电防护电路输出端与输入端形成电性连接。
5.如权利要求4所述的显示面板的静电防护结构，其特征在于，所述输出端与输入端形成电性连接时，所述输出端的输出值与对应的所述输入端的输入值相等。
6.如权利要求4所述的显示面板的静电防护结构，其特征在于，当所述正极性开关及所述负极性开关关闭时，所述输出端的输出被所述二极管反向截止。
7.如权利要求6所述的显示面板的静电防护结构，所述输出端的输出被所述二极管反向截止时，与所述输出端对应的所述输入端无输入值。
8.如权利要求1所述的显示面板的静电防护结构，所述显示区显示时，时序控制器会储存前一帧画面，并与当前画面比对，当前后二帧画面不同时，在所述第一信号线区所述驱动信号输出值为高，而所述第二信号线区所述驱动信号输出值为低。
9.如权利要求1所述的显示面板的静电防护结构，所述显示区显示时，时序控制器会储存前一帧画面，并与当前画面比对，当前后二帧画面相同时，在所述第一信号线区所述驱动信号输出值为低，而所述第二信号线区所述驱动信号输出值为高，使所述静电防护电路输出端与对应的所述静电防护电路输入端断开而显示区不刷新。
10.一种显示面板，包括显示区和设置于显示区侧的数个栅极及数个源极及设置于所述显示区的静电防护结构，其特征在于，包括：
驱动芯片，用于发送驱动信号；
多条信号线，依据所述显示区的水平方向，将所述多条信号线均分为第一信号线区及第二信号线区，所述第一信号线区内的每一所述信号线设有一正极性开关，所述第二信号线区内的每一所述信号线设有一负极性开关，所述正极性开关及所述负极性开关电性连接所述驱动芯片；以及
静电防护电路，每一所述静电防护电路包括一正向二极管及一反向二极管；
其中，所述显示区显示时，时序控制器会储存前一帧画面，并与当前画面比对，当前后二帧画面不同时，在所述第一信号线区所述驱动信号输出值为高，而所述第二信号线区所述驱动信号输出值为低，当前后二帧画面相同时，在所述第一信号线区所述驱动信号输出值为低，而所述第二信号线区所述驱动信号输出值为高，使所述静电防护电路输出端与对应的所述静电防护电路输入端断开而显示区不刷新。
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