CN105243981B - 显示面板和显示装置 - Google Patents
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- H01L27/12—Devices consisting of a plurality of semiconductor or other solid-state components formed in or on a common substrate including semiconductor components specially adapted for rectifying, oscillating, amplifying or switching and having potential barriers; including integrated passive circuit elements having potential barriers the substrate being other than a semiconductor body, e.g. an insulating body
- H01L27/1214—Devices consisting of a plurality of semiconductor or other solid-state components formed in or on a common substrate including semiconductor components specially adapted for rectifying, oscillating, amplifying or switching and having potential barriers; including integrated passive circuit elements having potential barriers the substrate being other than a semiconductor body, e.g. an insulating body comprising a plurality of TFTs formed on a non-semiconducting substrate, e.g. driving circuits for AMLCDs
- H01L27/124—Devices consisting of a plurality of semiconductor or other solid-state components formed in or on a common substrate including semiconductor components specially adapted for rectifying, oscillating, amplifying or switching and having potential barriers; including integrated passive circuit elements having potential barriers the substrate being other than a semiconductor body, e.g. an insulating body comprising a plurality of TFTs formed on a non-semiconducting substrate, e.g. driving circuits for AMLCDs with a particular composition, shape or layout of the wiring layers specially adapted to the circuit arrangement, e.g. scanning lines in LCD pixel circuits
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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
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- 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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Abstract
所公开的是一种显示面板,包括测试线和孪生虚设线,其中孪生虚设线与信号线的交叠区面积和孪生虚设线面积之比小于测试线与信号线的交叠区面积和测试线面积之比。还公开了包括所述显示面板的显示装置。
Description
技术领域
本发明一般地涉及显示领域。更具体地,本发明涉及一种显示面板和包括该显示面板的显示装置。
背景技术
在显示面板的制造过程中,通常会在显示面板中设计测试线。测试线是为开发或研究人员预留以测试显示面板内信号的线路。该线路仅仅为开发或研究人员专用,而在用户正常使用显示面板时不起作用。图1示意性地示出显示面板内的线路布局,其中虚线1为被测信号线,实线2为显示面板内的其它信号线,实线3为测试线。一般地,如图1所示,测试线3的起点与被测信号线1相连,终点经由测试焊盘连接到研发设备,从而使得研发设备能够通过测试线监视显示面板内的电压电流情况。
但是在实际使用中,测试线也可能对显示面板的正常工作产生不利影响。在测试线与显示面板内的其它信号线交叠处,会产生静电放电(ESD)现象。测试线上的静电放电会造成测试线所连接的信号线在显示面板内显示为线不良。
目前,解决显示面板的静电放电问题的主要手段包括:(1)在显示面板内设置静电防护电路,该静电防护电路通常与显示面板中的信号线电连接;(2)当用户在使用过程中遇到静电放电问题之后由维修人员对显示面板进行维修,切除造成静电放电的部分。然而,单独的静电防护电路需要占用显示面板内的较多的布线空间,不利于显示面板的轻薄化和便携化,并且增加布线复杂性和制造成本;另一方面,维修没有从根本上解决静电放电的问题,并且不仅导致额外的人力物力消耗,而且使用户体验降级。
鉴于上文,存在对于改进的显示面板和显示装置的需求。
发明内容
本发明的一个目的是提供一种显示面板和包括所述显示面板的显示装置,其能够至少部分地缓解或消除以上提到的现有技术中的问题中的一个或多个。
根据本发明的第一方面,提供了一种显示面板,其可以包括测试线和孪生虚设(dummy)线,其中孪生虚设线与信号线的交叠区面积和孪生虚设线面积之比小于测试线与信号线的交叠区面积和测试线面积之比。
如本文所使用的,术语“孪生虚设线”是指与测试线大体平行延伸、并且在测试和正常显示过程中均不起实际作用的线。孪生虚设线的作用在于使静电放电发生在孪生虚设线上而不是发生在测试线上,从而避免测试线上的静电放电所导致的显示面板显示不良。本发明人已经认识到,在大体平行的两条孪生线上,静电放电优先发生在与信号线的交叠区面积和线面积之比较小的线上。特别地,在大体平行的两条孪生线上,静电放电优先发生在走线面积较大的线上;在大体平行且大体面积相等的两条孪生线上,静电放电优先发生在与信号线的交叠区面积较小的线上。
通过本发明的实施例,不仅可以保留测试线的功能,而且可以从根本上解决测试线上的静电放电问题,减少显示面板的良率损失和维修成本。同时,通过在显示面板的布线掩模设计时增加孪生虚设线设计,相比于设置单独的静电防护电路的方案,可以在不明显增加制造复杂性和制造成本的情况下解决测试线上的静电放电问题,有利于显示面板的轻薄化和便携化。
根据本发明的一个实施例,孪生虚设线与信号线的交叠区面积和孪生虚设线面积之比可以比测试线与信号线的交叠区面积和测试线面积之比小至少15%。例如,孪生虚设线与信号线的交叠区面积和孪生虚设线面积之比可以比测试线与信号线的交叠区面积和测试线面积之比小20%。
根据本发明的另一实施例,孪生虚设线的面积可以大于等于测试线的面积,并且孪生虚设线与信号线的交叠面积小于测试线与信号线的交叠面积。例如,孪生虚设线与信号线的交叠面积可以比测试线与信号线的交叠面积小至少15%,例如小20%。
根据本发明的又一实施例,孪生虚设线在与信号线的交叠区的宽度可以小于测试线在与信号线的交叠区的宽度,并且孪生虚设线在除交叠区之外的区域宽度可以大于等于测试线。此时,孪生虚设线与测试线的长度可以相等。
根据本发明的再一实施例,孪生虚设线与信号线的交叠区面积可以小于等于测试线与信号线的交叠区面积,并且孪生虚设线的面积可以大于测试线的面积。
根据本发明另外的实施例,孪生虚设线可以与测试线的宽度相等,并且孪生虚设线的长度可以大于测试线。例如,孪生虚设线的长度可以比测试线大至少15%。
在上述实施例中,信号线可以为栅线和/或数据线。
根据本发明的第二方面,提供了一种显示装置,其可以包括上述任何实施例所述的显示面板。
上述显示装置具有与根据本发明的第一方面描述的显示面板对应或类似的实施例和优点,在此不再赘述。
附图说明
参照示出本发明的实施例的附图,现在将更加详细地描述本发明的这些和其它方面,其中附图未必是按照比例绘制的,而是将重点放在图示本发明的原理上。此外,在附图中省略了一些本领域技术人员已知的元件以免混淆本发明。在附图中:
图1是现有技术中的显示面板的一般示意图;
图2是根据本发明的实施例的显示面板的示意图;
图3是根据本发明的一个实施例的孪生虚设线布置的示意图;
图4是根据本发明的另一实施例的孪生虚设线布置的示意图;以及
图5是根据本发明的又一实施例的孪生虚设线布置的示意图。
具体实施方式
现在将参照附图在下文更全面地描述本发明,在附图中示出本发明的实施例。然而,本发明可以以许多不同形式体现并且不应当解释为限于本文所阐述的实施例;而是,为了完整性和透彻性并且为了向技术人员全面地传达本发明的范围而提供这些实施例。
图2图示了根据本发明的实施例的显示面板,其中与测试线3大体平行地布置孪生虚设线4,水平延伸的信号线5与测试线3和孪生虚设线4交叠。在图2所示的实施例中,被测信号线1可以是栅线,信号线5可以是数据线。
为了将静电放电局限在孪生虚设线4上,孪生虚设线4和测试线3的相对尺寸需要满足以下条件:孪生虚设线4与信号线5的交叠区面积和孪生虚设线4面积之比应当小于测试线3与信号线(在此为栅线5)的交叠区面积和测试线3面积之比。在一个示例性实施例中,孪生虚设线与信号线的交叠区面积和孪生虚设线面积之比小于测试线与信号线的交叠区面积和测试线面积之比至少15%,例如小20%或更多。
在一种实现方式中,孪生虚设线4的面积大于等于测试线3的面积,并且孪生虚设线4与信号线5的交叠面积小于测试线3与信号线5的交叠面积。例如,孪生虚设线4与信号线5的交叠面积比测试线3与信号线5的交叠面积小至少15%,例如小20%或更多。
如图3所示,孪生虚设线4在与信号线5的交叠处的宽度小于测试线3在与信号线5的交叠处的宽度,并且孪生虚设线4在除交叠区之外的区域宽度等于测试线3。例如,孪生虚设线4在与信号线5的交叠处的宽度比测试线3在与信号线5的交叠处的宽度小至少15%,例如小20%或更多。
在图3所示的实施例中,孪生虚设线4与测试线3的长度可以相等。由于孪生虚设线4和测试线3与信号线5的交叠区面积相比于孪生虚设线4和测试线3的面积而言可以忽略不计,因此认为此时孪生虚设线4和测试线3的面积相等,静电放电优先发生在孪生虚设线4上。
在另一种实现方式中,孪生虚设线4与信号线5的交叠区面积小于等于测试线3与信号线5的交叠区面积,并且孪生虚设线4的面积大于测试线3的面积。
如图4所示,孪生虚设线4与测试线3的宽度相等,并且孪生虚设线4的长度大于测试线3。例如,孪生虚设线4的长度比测试线3大至少15%。
可替换地,如图5所示,孪生虚设线4在与信号线5的交叠区的宽度小于测试线3在与信号线5的交叠区的宽度,并且孪生虚设线4在除交叠区之外的区域宽度大于测试线3。
在上述实施例中,与孪生虚设线4和信号线5交叠的信号线可以是显示面板中的任何信号线,例如栅线、数据线等。
本发明的实施例还提供了一种显示装置,其可以包括上述任一实施例中的显示面板。
在上述实施例中,不仅可以保留测试线的功能,而且可以从根本上解决测试线上的静电放电问题,减少显示面板的良率损失和维修成本。同时,通过在显示面板的布线掩模设计时增加孪生虚设线设计,相比于设置单独的静电防护电路的方案,可以在不明显增加制造复杂性和制造成本的情况下解决测试线上的静电放电问题,有利于显示面板的轻薄化和便携化。
本发明可以广泛地应用于各种显示装置和具有显示装置的设备,例如移动电话、笔记本计算机、液晶电视等等。
本领域技术人员将认识到,本发明绝不限于以上描述的示例实施例。相反,在所附权利要求的范围内,许多修改和变型是可能的。例如,其它组件可以添加到所描述的装置或者从所描述的装置移除。其它实施例可以在本发明的范围内。此外,在权利要求中,词语“包括”不排除其它元件或步骤。在相互不同的从属权利要求中叙述的某些措施的简单事实并不表示不能使用这些措施的组合来获益。
Claims (12)
1.一种显示面板,包括测试线和孪生虚设线,其中孪生虚设线与测试线大体平行延伸且在测试和正常显示过程中均不起实际作用,并且其中孪生虚设线与信号线的交叠区面积和孪生虚设线面积之比小于测试线与信号线的交叠区面积和测试线面积之比。
2.根据权利要求1所述的显示面板,其中孪生虚设线与信号线的交叠区面积和孪生虚设线面积之比小于测试线与信号线的交叠区面积和测试线面积之比至少15%。
3.根据权利要求2所述的显示面板,其中孪生虚设线与信号线的交叠区面积和孪生虚设线面积之比比测试线与信号线的交叠区面积和测试线面积之比小20%。
4.根据权利要求1所述的显示面板,其中孪生虚设线的面积大于等于测试线的面积,并且孪生虚设线与信号线的交叠面积小于测试线与信号线的交叠面积。
5.根据权利要求4所述的显示面板,其中孪生虚设线与信号线的交叠面积小于测试线与信号线的交叠面积至少15%。
6.根据权利要求1所述的显示面板,其中孪生虚设线与信号线的交叠区的宽度小于测试线与信号线的交叠区的宽度,并且孪生虚设线在除交叠区之外的区域中的宽度大于等于测试线。
7.根据权利要求6所述的显示面板,其中孪生虚设线与测试线的长度相等。
8.根据权利要求1所述的显示面板,其中孪生虚设线与信号线的交叠区面积小于等于测试线与信号线的交叠区面积,并且孪生虚设线的面积大于测试线的面积。
9.根据权利要求1所述的显示面板,其中孪生虚设线与测试线的宽度相等,并且孪生虚设线的长度大于测试线。
10.根据权利要求9所述的显示面板,其中孪生虚设线的长度大于测试线至少15%。
11.根据权利要求1-10中任一项所述的显示面板,其中信号线为栅线和/或数据线。
12.一种显示装置,包括根据权利要求1-11中任一项所述的显示面板。
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US15/505,968 US10656486B2 (en) | 2015-11-06 | 2016-08-04 | Display panel and display device |
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CN102654699A (zh) * | 2011-09-29 | 2012-09-05 | 北京京东方光电科技有限公司 | 一种阵列基板及线缺陷维修方法 |
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