CN105469731A - 阵列基板、电学老化方法、显示装置及其制作方法 - Google Patents
阵列基板、电学老化方法、显示装置及其制作方法 Download PDFInfo
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Abstract
本发明涉及一种阵列基板、电学老化方法、显示装置及其制作方法,其中的阵列基板包括设置在显示区的每一像素区域内的像素电路、设置在显示区外的扫描驱动电路,以及连接所述像素电路与所述扫描驱动电路的多条扫描线,还包括:设置在显示区外的至少一个电压输入端;将所述多条扫描线按照预设对应关系连接至所述至少一个电压输入端的至少一条引线;其中,所述至少一条引线与所述扫描驱动电路之间设有绝缘层。由此,本发明可以解决现有电学老化方式会损坏GOA电路的问题,可以减少GOA电路在电学老化过程中损坏所造成的良率损失,有利于提高生产效率、降低成本。
Description
技术领域
本发明涉及显示技术,具体涉及一种阵列基板、电学老化方法、显示装置及其制作方法。
背景技术
对于AMOLED(Active-MatrixOrganicLightEmittingDiode,有源矩阵有机发光二极管)显示面板而言,现有技术已经给出了相应的电学老化方式。具体来说,其主要通过对阵列基板中的GOA(GatedriverOnAarry,阵列基板行驱动)电路施加±12v~±20v的方波电压信号,从而间接地向像素电路中的PMOS(PositiveChannelMetalOxideSemiconductor,P沟道金属氧化物半导体)晶体管的栅极施加老化电压,配合对PMOS晶体管施加的-20V~-12V的漏源电压,来对像素电路中的PMOS晶体管进行电学老化,以达到降低晶体管的漏电流的目的。然而,现有技术中的电学老化方式需要直接对GOA电路施加幅值过大的电压,可能会导致GOA电路的损坏。
发明内容
针对现有技术中的缺陷,本发明提供一种阵列基板、电学老化方法、显示装置及其制作方法,可以解决现有电学老化方式会损坏GOA电路的问题。
第一方面,本发明提供了一种阵列基板,包括设置在显示区的每一像素区域内的像素电路、设置在显示区外的扫描驱动电路,以及连接所述像素电路与所述扫描驱动电路的多条扫描线,还包括:
设置在显示区外的至少一个电压输入端;
将所述多条扫描线按照预设对应关系连接至所述至少一个电压输入端的至少一条引线;
其中,所述至少一条引线与所述扫描驱动电路之间设有绝缘层。
可选地,所述阵列基板包括设置在边缘处的切除区域;所述至少一条引线的走线路径均经过所述切除区域。
可选地,任一条所述引线上连接两条或两条以上扫描线的电路节点均位于所述切除区域内。
可选地,所述像素电路包括设置在第一偏压电极与第二偏压电极之间的有机发光二极管,以形成驱动电流通路。
可选地,所述像素电路还包括驱动晶体管和第一晶体管;其中,
所述驱动晶体管的源极和漏极设置在所述驱动电流通路当中;
所述第一晶体管的源极和漏极中的一个连接所述驱动晶体管的栅极,另一个连接数据线;
所述第一晶体管的栅极通过第一扫描线连接所述扫描驱动电路;所述至少一条引线中的第一引线分别连接所有的第一扫描线;所述至少一个电压输入端中的第一电压输入端连接所述第一引线。
可选地,所述像素电路还包括第二晶体管;所述第二晶体管的源极和漏极中的一个连接所述驱动晶体管的栅极,另一个连接初始化电压线;
所述第二晶体管的栅极通过第二扫描线连接所述扫描驱动电路;所述至少一条引线中的第二引线分别连接所有的第二扫描线;所述至少一个电压输入端中的第二电压输入端连接所述第二引线。
可选地,所述像素电路还包括源极和漏极设置在所述驱动电流通路当中的第三晶体管;
所述第三晶体管的栅极通过第三扫描线连接所述扫描驱动电路;所述至少一条引线中的第三引线分别连接所有的第三扫描线;所述至少一个电压输入端中的第三电压输入端连接所述第三引线。
第二方面,本发明还提供了一种显示装置,包括上述任意一种的阵列基板。
第三方面,本发明还提供了一种像素电路的电学老化方法,所述像素电路设置在一阵列基板的显示区的每一像素区域内,其特征在于,所述阵列基板为上述任意一种的阵列基板;所述像素电路的电学老化方法包括:
向所述至少一个电压输入端分别施加老化电压信号,以使所述像素电路中的至少部分晶体管在栅极接收到的老化电压信号的作用下进行电学老化。
第四方面,本发明还提供了一种显示装置的制作方法,其特征在于,所述显示装置包括上述任意一种的阵列基板;所述阵列基板包括设置在边缘处的切除区域;所述至少一条引线的走线路径均经过所述切除区域;所述显示装置的制作方法包括:
在所述阵列基板上的像素电路经过电学老化后,将所述切除区域切除以切断每一条所述引线。
可选地,所述显示装置的制作方法还包括:
将所述至少一条引线采用激光切割分离。
由上述技术方案可知,本发明基于引线、电压输入端和绝缘层的设置,可以在不影响GOA电路和像素电路正常工作的情况下直接对扫描线施加电压。从而在进行电学老化时,可以直接通过电压输入端和引线向扫描线施加老化电压,因此可以解决现有电学老化方式会损坏GOA电路的问题。由此,本发明可以减少GOA电路在电学老化过程中损坏所造成的良率损失,有利于提高生产效率、降低成本。
附图说明
为了更清楚地说明本发明实施例或现有技术中的技术方案,下面将对实施例或现有技术描述中所需要使用的附图作一简单的介绍,显而易见地,下面描述中的附图是本发明的一些实施例,对于本领域普通技术人员来讲,在不付出创造性劳动的前提下,还可以根据这些附图获得其他的附图。
图1是本发明一个实施例中一种阵列基板的局部俯视结构示意图;
图2是本发明一个实施例中一种像素电路的电路结构图。
具体实施方式
为使本发明实施例的目的、技术方案和优点更加清楚,下面将结合本发明实施例中的附图,对本发明实施例中的技术方案进行清楚、完整地描述,显然,所描述的实施例是本发明一部分实施例,而不是全部的实施例。基于本发明中的实施例,本领域普通技术人员在没有作出创造性劳动前提下所获得的所有其他实施例,都属于本发明保护的范围。
图1是本发明一个实施例中一种阵列基板的局部俯视结构示意图。参见图1,该阵列基板包括设置在显示区AA的每一像素区域内的像素电路PX、设置在显示区AA外的扫描驱动电路GD,以及连接所述像素电路PX与所述扫描驱动电路GD的多条扫描线。除此之外,该阵列基板还包括:设置在显示区AA外的至少一个电压输入端VI,以及将多条扫描线按照预设对应关系连接至至少一个电压输入端VI的至少一条引线。在图1中未明确示出的是,上述至少一条引线与扫描驱动电路GD之间设有绝缘层IL。
需要说明的是,本发明实施例所述的阵列基板可以应用于任意一种显示装置,上述显示区AA对应于显示装置的有效显示区域(ActiveArea)。视具体类型的不同,像素区域可以按照任意的方式排列在显示区AA中,在行方向上延伸的多条扫描线则可以对应设置。按照显示发光的驱动方式的不同,上述像素电路PX可以通过任意的电路结构来实现相应的功能;而根据像素电路PX所需要的扫描驱动信号的类型和个数的不同,上述扫描驱动电路GD则可以通过任意的电路结构来提供相应的扫描驱动信号。可以理解的是,本发明实施例中将扫描驱动电路GD设置在了阵列基板上,因此可以通过类似于GOA(GatedriverOnAarry,阵列基板行驱动)一类的技术来实现。
除此之外,上述至少一个电压输入端VI指的是设置在阵列基板的显示区AA之外的用于连接外部电压的结构,而上述至少一条引线指的是用于将多条扫描线按照预设对应关系连接至至少一个电压输入端VI的线状导体结构。具体来说,预设对应关系即每一条扫描线具体连接至哪一个电压输入端,如图1中的实例所示:像素电路PX按照行列的方式在显示区AA内排布,而每行像素电路PX通过三条扫描线与扫描驱动电路GD中的一个电路单元UN相连。可以理解的是,在像素电路PX均具有相同的电路结构时,每行像素电路PX均由三种不同的扫描驱动信号来控制工作状态。由此,预设对应关系可以是如图1所示的那样将用于传输同一种扫描驱动信号的扫描线各自连接至一个电压输入端处,使得三个电压输入端中的每一个都可以对应于一种扫描驱动信号。需要说明的是,基于图1所示的预设对应关系,可以利用三个电压输入端来同时向所有的像素电路PX输入同等的电压信号,然而在需要为不同行的像素电路PX分别输入不同的电压信号时,可以在预设对应关系中将与不同行像素电路PX对应的扫描线连接至不同的电压输入端处,本发明对此不做限制。
此外,上述绝缘层IL是设置在至少一条引线与扫描驱动电路GD之间的绝缘结构,主要用于隔绝至少一条引线与扫描驱动电路GD之间的电信号。作为一种示例,绝缘层IL可以是覆盖在扫描驱动电路GD之上的钝化层,而扫描驱动电路GD的设置区域内至少一条引线形成在绝缘层IL之上,引线与扫描线的连接位置处绝缘层IL内形成有连接过孔。作为另一种示例,至少一条引线与扫描驱动电路GD均直接制作在衬底上,此时位于引线与扫描驱动电路GD之间的部分栅绝缘层作为绝缘层IL。当然,绝缘层IL只要能够避免至少一条引线与扫描驱动电路GD之间发生短路或信号干扰等严重的电路缺陷即可,具体形式本发明不做限制。
作为一种现有技术与本发明实施例的对照,对于没有设置上述至少一个电压输入端VI、至少一条引线以及绝缘层IL的阵列基板,现有电学老化方式通常会对扫描驱动电路GD施加高于其工作电压的输入电压,从而利用扫描驱动电路GD的在扫描线上的输出电压间接地向像素电路PX施加老化电压。基于此,一方面扫描驱动电路GD容易在过高的电压输入下发生损坏,另一方面扫描驱动电路GD内部存在的电路缺陷也会使得像素电路PX在过小老化电压下老化不充分,在过大的老化电压下发生损坏。
而与之相对的,本发明实施例基于引线、电压输入端和绝缘层的设置,可以通过引线和电压输入端直接向多条扫描线施加电压,同时在绝缘层的间隔下经过扫描驱动电路GD的设置区域的引线不会对扫描驱动电路GD造成损伤。另一方面,由于老化电压是直接施加在多条扫描线上的,因此扫描驱动电路GD内部存在的电路缺陷并不会影响像素电路PX的电学老化。
可以看出的是,本发明实施例可以解决现有电学老化方式会损坏GOA电路的问题。由此,本发明实施例可以减少GOA电路在电学老化过程中损坏所造成的良率损失,有利于提高生产效率、降低成本。
参见图1,图1所示的阵列基板中还设置有在边缘处的切除区域CUT,而上述至少一条引线中的每一条的走线路径均经过该切除区域CUT。可以理解的是,切除区域CUT是阵列基板边缘处设置的一个特殊的区域,主要用于容纳一些制造、测试或者维修工序中需要但是实现显示时则不需要或者有妨害的结构,因此通常会在安装到显示装置中之前被切除。由此,在切除区域CUT被切离阵列基板后,所有的引线都会断开,使得电压输入端与扫描线之间电性绝缘,可以避免电压输入端对扫描线造成信号干扰。进一步地,可以将所有在引线中连接两条或两条以上扫描线的电路节点设置在切除区域CUT内。由此,由于任一条所述引线上连接两条或两条以上扫描线的电路节点均位于所述切除区域CUT内,因此在切除区域CUT被切离阵列基板后不同扫描线之间仍可以保持电性绝缘,避免影响正常的显示。应理解的是,包含切除区域CUT的阵列基板可以是制作流程中已制作完成并送往进行下一制作工序的产品,也可以是在制作工序中处在中间状态的结构,本领域技术人员应当结合具体场景理解本发明实施例的阵列基板所具有的实际结构。
作为上述像素电路PX的一种具体示例,图2是本发明一个实施例中一种像素电路的电路结构图。参见图2,该像素电路中:
有机发光二极管E1设置在第一偏压电极Vdd与第二偏压电极Vss之间,以形成驱动电流通路。
驱动晶体管T0的源极和漏极设置在驱动电流通路当中,主要用于在栅极所接电压的控制下限制驱动电流通路中的驱动电流的大小。
第一晶体管T1的栅极连接第一扫描线GT,源极和漏极中的一个经过电容C1的两端连接驱动晶体管T0的栅极,另一个连接数据线;具有该电路连接关系的第一晶体管T1主要用于将数据线上的数据电压Vdata在第一扫描线GT上的电压的控制下耦接至驱动晶体管T0的栅极,使得驱动电流的大小可以被数据电压Vdata所控制。
第二晶体管T2的栅极连接第二扫描线RE,源极和漏极中的一个连接驱动晶体管T0的栅极,另一个连接初始化电压线;具有该电路连接关系的第二晶体管T2主要用于在第二扫描线RE上的电压的控制下将驱动晶体管T0的栅极置为初始化电压线上的初始化电压Vinit。
第三晶体管T3的栅极连接第三扫描线EM,源极和漏极设置在上述驱动电流通路当中;具有该电路连接关系的第三晶体管T3主要用于在第三扫描线EM上的电压的控制下实现驱动电流通路的通断切换。
第四晶体管T4的栅极连接第一扫描线GT,源极和漏极中的一个连接驱动晶体管T0的栅极,另一个连接驱动晶体管T0的源极或漏极;具有该电路连接关系的第四晶体管T4主要用于在第一扫描线GT上的电压的控制下将驱动晶体管T0置为二极管连接状态,从而可以得到驱动晶体管T0的阈值电压的大小。
第五晶体管T5的栅极连接第三扫描线EM,源极和漏极中的一个连接参考电压Vref,另一个连接电容C1的第一端(电容C1连接驱动晶体管T0的一端为第二端);具有该电路连接关系的第五晶体管T5主要用于在在第三扫描线EM上的电压的控制下将所连接的电容C1的一端置为参考电压Vref。
第六晶体管T6的栅极连接第二扫描线RE,源极和漏极中的一个连接电容C1的第一端,另一个连接数据线;具有该电路连接关系的第六晶体管T6主要用于在第二扫描线RE上的电压的控制下将电容C1的第一端置为数据线上的电压。
可以理解的是,上述像素电路可以在适当的信号时序下先将电容C1两端的电压初始化,再将驱动晶体管T0的阈值电压写入电容C1的第二端,然后将数据线上的数据电压Vdata耦接至驱动晶体管T0的栅极,最后通过开启第三晶体管T3使得有机发光二极管E1在由数据电压Vdata确定的驱动电流下发光。
可以看出的是,上述像素电路需要同时连接第一扫描线GT、第二扫描线RE和第三扫描线EM,因此可以如图1所示的那样分别通过第一引线、第二引线和第三引线连接至三个电压输入端中的一个,直接在三个电压输入端处输入的老化电压的作用下完成电学老化。
然而应理解的是,基于像素电路中有机发光二极管E1的设置,本发明实施例给出的像素电路仅是一种AMOLED(Active-MatrixOrganicLightEmittingDiode,有源矩阵有机发光二极管)显示模式下的示例,该像素电路还可以是例如LCD(LiquidCrystalDisplay,液晶显示)等其他显示模式下的像素电路,也可以参照现有AMOLED中像素电路的结构得到其他结构下的像素电路,本发明均不作限制。
举例来说,源极和漏极设置在驱动电流通路当中的驱动晶体管T0和栅极通过第一扫描线连接扫描驱动电路GD的第一晶体管T1(其中第一晶体管的源极和漏极中的一个连接驱动晶体管的栅极,另一个连接数据线)可以形成不具有阈值补偿功能的像素电路。对于所有具有该结构的像素电路,可以使上述至少一条引线中的第一引线分别连接所有的第一扫描线GT,并使至少一个电压输入端中的第一电压输入端连接第一引线,使得可以通过第一电压输入端向第一晶体管T1的栅极施加老化电压。当然,除驱动晶体管T0和第一晶体管T1之外,像素电路还可以包括例如电容的其他器件。
举例来说,像素电路可以还包括栅极通过第二扫描线连接扫描驱动电路GD的第二晶体管T2(第二晶体管T2的源极和漏极中的一个连接驱动晶体管的栅极,另一个连接初始化电压线),以使上述至少一条引线中的第二引线分别连接所有的第二扫描线,并使至少一个电压输入端中的第二电压输入端连接第二引线。由此,通过第二电压输入端可以向第二晶体管T2的栅极施加老化电压。当然,除第二晶体管T2之外,像素电路还可以包括例如电容的其他器件。
举例来说,像素电路可以还包括源极和漏极设置在驱动电流通路当中的第三晶体管T3,其中的第三晶体管T3的栅极通过第三扫描线连接扫描驱动电路GD。从而,可以使至少一条引线中的第三引线分别连接所有的第三扫描线,并使至少一个电压输入端中的第三电压输入端连接第三引线,来通过第三电压输入端可以向第三晶体管T3的栅极施加老化电压。当然,除第三晶体管T3之外,像素电路还可以包括例如电容的其他器件。
基于同样的发明构思,本发明实施例提供一种像素电路的电学老化方法,该像素电路设置在一阵列基板的显示区的每一像素区域内,该阵列基板为上述任意一种的阵列基板。具体来说,上述像素电路的电学老化方法包括:
向所述至少一个电压输入端分别施加老化电压信号,以使所述像素电路中的至少部分晶体管在栅极接收到的老化电压信号的作用下进行电学老化。
以图2所示的像素电路为具体示例:
为了对第一晶体管T1、第二晶体管T2和第六晶体管T6同时进行电学老化,可以通过第一电压输入端向第一扫描线GT输入15V电压、通过第二电压输入端向第二扫描线RE输入15V电压、通过第三电压输入端向第三扫描线EM输入-18V电压,同时将初始化电压线上的初始化电压Vinit置为-15V、将参考电压Vref置为-15V、将数据线上的数据电压Vdata置为0V、将第一偏压电极Vdd与第二偏压电极Vss上的电压分别置为0V和0V。从而在上述老化电压信号的作用下持续10秒的老化时间,则可以完成对第一晶体管T1、第二晶体管T2和第六晶体管T6的电学老化。
为了对第三晶体管T3和第五晶体管T5同时进行电学老化,可以通过第一电压输入端向第一扫描线GT输入0V电压、通过第二电压输入端向第二扫描线RE输入0V电压、通过第三电压输入端向第三扫描线EM输入15V电压,同时将初始化电压线上的初始化电压Vinit置为0V、将参考电压Vref置为-15V、将数据线上的数据电压Vdata置为0V、将第一偏压电极Vdd与第二偏压电极Vss上的电压分别置为0V和-15V。从而在此状态下持续10s的老化时间,则可以完成对第三晶体管T3和第五晶体管T5的电学老化。
为了对第四晶体管T4进行电学老化,可以通过第一电压输入端向第一扫描线GT输入15V电压、通过第二电压输入端向第二扫描线RE输入-18V电压、通过第三电压输入端向第三扫描线EM输入7V电压,同时将初始化电压线上的初始化电压Vinit置为-15V、将参考电压Vref置为0V、将数据线上的数据电压Vdata置为0V、将第一偏压电极Vdd与第二偏压电极Vss上的电压分别置为0V和0V。从而在此状态下持续10s的老化时间,则可以完成对第四晶体管T4的电学老化。
为了对驱动晶体管T0进行电学老化,可以通过第一电压输入端向第一扫描线GT输入18V电压、通过第二电压输入端向第二扫描线RE输入-7V电压、通过第三电压输入端向第三扫描线EM输入-18V电压,同时将初始化电压线上的初始化电压Vinit置为15V、将参考电压Vref置为0V、将数据线上的数据电压Vdata置为0V、将第一偏压电极Vdd与第二偏压电极Vss上的电压分别置为0V和-15V。从而在此状态下持续10s的老化时间,则可以完成对驱动晶体管T0的电学老化。
当然,上述方式仅是本发明实施例的电学老化方法的一种具体示例,在像素电路具有其他结构时,可以参考本发明实施例和现有技术得到相对应的电学老化方式。
可以看出的是,本发明实施例基于引线、电压输入端和绝缘层的设置,可以通过引线和电压输入端直接向多条扫描线施加电压,同时在绝缘层的间隔下经过扫描驱动电路的设置区域的引线不会对扫描驱动电路造成损伤。另一方面,由于老化电压是直接施加在多条扫描线上的,因此扫描驱动电路内部存在的电路缺陷并不会影响像素电路的电学老化。本发明实施例可以解决现有电学老化方式会损坏GOA电路的问题。由此,本发明实施例可以减少GOA电路在电学老化过程中损坏所造成的良率损失,有利于提高生产效率、降低成本。
基于同样的发明构思,本发明实施例提供包括上述任意一种阵列基板的显示装置。需要说明的是,本实施例中的显示装置可以为:显示面板、电子纸、手机、平板电脑、电视机、笔记本电脑、数码相框、导航仪等任何具有显示功能的产品或部件。由于本发明实施例的显示装置包括上述任意一种的阵列基板,因此本发明实施例可以解决现有电学老化方式会损坏GOA电路的问题,减少GOA电路在电学老化过程中损坏所造成的良率损失,有利于提高生产效率、降低成本。
此外,基于同样的发明构思,本发明实施例提供一种包括上述任意一种阵列基板的显示装置的制作方法。其中,阵列基板包括设置在边缘处的切除区域,而且所述至少一条引线的走线路径均经过所述切除区域。具体来说,上述显示装置的制作方法包括:
在所述阵列基板上的像素电路经过电学老化后,将所述切除区域切除以切断每一条所述引线。
可以理解的是,切除区域CUT是阵列基板边缘处设置的一个特殊的区域,主要用于容纳一些制造、测试或者维修工序中需要但是实现显示时则不需要或者有妨害的结构,因此通常会在安装到显示装置中之前被切除。由此,在切除区域CUT被切离阵列基板后,所有的引线都会断开,使得电压输入端与扫描线之间电性绝缘,可以避免电压输入端对扫描线造成信号干扰。
进一步地,可以将所有在引线中连接两条或两条以上扫描线的电路节点设置在切除区域CUT内。由此,由于任一条所述引线上连接两条或两条以上扫描线的电路节点均位于所述切除区域CUT内,因此在切除区域CUT被切离阵列基板后不同扫描线之间仍可以保持电性绝缘,避免影响正常的显示。
应理解的是,包含切除区域CUT的阵列基板可以是制作流程中已制作完成并送往进行下一制作工序的产品,也可以是在制作工序中处在中间状态的结构,本领域技术人员应当结合具体场景理解上述阵列基板所具有的实际结构。
此外,对于切除区域被切除后的阵列基板而言,由于引线容易与外界接触而带有静电,因此还留有引线的阵列基板容易产生静电类不良。对此,可以在上述显示装置的制作方法中还包括步骤:将所述至少一条引线采用激光切割分离。基于此,可以采用激光切割的方式将形成在一层绝缘层上的引线连同部分绝缘层整面地采用激光切割分离,或者将形成有引线的部分区域通过激光切割分离,以减小其引发静电类不良的可能性。
需要说明的是,在本文中,诸如第一和第二等之类的关系术语仅仅用来将一个实体或者操作与另一个实体或操作区分开来,而不一定要求或者暗示这些实体或操作之间存在任何这种实际的关系或者顺序。而且,术语“包括”、“包含”或者其任何其他变体意在涵盖非排他性的包含,从而使得包括一系列要素的过程、方法、物品或者设备不仅包括那些要素,而且还包括没有明确列出的其他要素,或者是还包括为这种过程、方法、物品或者设备所固有的要素。在没有更多限制的情况下,由语句“包括一个……”限定的要素,并不排除在包括所述要素的过程、方法、物品或者设备中还存在另外的相同要素。术语“上”、“下”等指示的方位或位置关系为基于附图所示的方位或位置关系,仅是为了便于描述本发明和简化描述,而不是指示或暗示所指的装置或元件必须具有特定的方位、以特定的方位构造和操作,因此不能理解为对本发明的限制。除非另有明确的规定和限定,术语“安装”、“相连”、“连接”应做广义理解,例如,可以是固定连接,也可以是可拆卸连接,或一体地连接;可以是机械连接,也可以是电连接;可以是直接相连,也可以通过中间媒介间接相连,可以是两个元件内部的连通。对于本领域的普通技术人员而言,可以根据具体情况理解上述术语在本发明中的具体含义。
本发明的说明书中,说明了大量具体细节。然而能够理解的是,本发明的实施例可以在没有这些具体细节的情况下实践。在一些实例中,并未详细示出公知的方法、结构和技术,以便不模糊对本说明书的理解。类似地,应当理解,为了精简本发明公开并帮助理解各个发明方面中的一个或多个,在上面对本发明的示例性实施例的描述中,本发明的各个特征有时被一起分组到单个实施例、图、或者对其的描述中。
最后应说明的是:以上各实施例仅用以说明本发明的技术方案,而非对其限制;尽管参照前述各实施例对本发明进行了详细的说明,本领域的普通技术人员应当理解:其依然可以对前述各实施例所记载的技术方案进行修改,或者对其中部分或者全部技术特征进行等同替换;而这些修改或者替换,并不使相应技术方案的本质脱离本发明各实施例技术方案的范围,其均应涵盖在本发明的权利要求和说明书的范围当中。
Claims (11)
1.一种阵列基板,包括设置在显示区的每一像素区域内的像素电路、设置在显示区外的扫描驱动电路,以及连接所述像素电路与所述扫描驱动电路的多条扫描线,其特征在于,还包括:
设置在显示区外的至少一个电压输入端;
将所述多条扫描线按照预设对应关系连接至所述至少一个电压输入端的至少一条引线;
其中,所述至少一条引线与所述扫描驱动电路之间设有绝缘层。
2.根据权利要求1所述的阵列基板,其特征在于,所述阵列基板包括设置在边缘处的切除区域;所述至少一条引线的走线路径均经过所述切除区域。
3.根据权利要求2所述的阵列基板,其特征在于,任一条所述引线上连接两条或两条以上扫描线的电路节点均位于所述切除区域内。
4.根据权利要求1所述的阵列基板,其特征在于,所述像素电路包括设置在第一偏压电极与第二偏压电极之间的有机发光二极管,以形成驱动电流通路。
5.根据权利要求4所述的阵列基板,其特征在于,所述像素电路还包括驱动晶体管和第一晶体管;其中,
所述驱动晶体管的源极和漏极设置在所述驱动电流通路当中;
所述第一晶体管的源极和漏极中的一个连接所述驱动晶体管的栅极,另一个连接数据线;
所述第一晶体管的栅极通过第一扫描线连接所述扫描驱动电路;所述至少一条引线中的第一引线分别连接所有的第一扫描线;所述至少一个电压输入端中的第一电压输入端连接所述第一引线。
6.根据权利要求5所述的阵列基板,其特征在于,所述像素电路还包括第二晶体管;所述第二晶体管的源极和漏极中的一个连接所述驱动晶体管的栅极,另一个连接初始化电压线;
所述第二晶体管的栅极通过第二扫描线连接所述扫描驱动电路;所述至少一条引线中的第二引线分别连接所有的第二扫描线;所述至少一个电压输入端中的第二电压输入端连接所述第二引线。
7.根据权利要求4所述的阵列基板,其特征在于,所述像素电路还包括源极和漏极设置在所述驱动电流通路当中的第三晶体管;
所述第三晶体管的栅极通过第三扫描线连接所述扫描驱动电路;所述至少一条引线中的第三引线分别连接所有的第三扫描线;所述至少一个电压输入端中的第三电压输入端连接所述第三引线。
8.一种显示装置,其特征在于,包括如权利要求1至7中任意一项所述的阵列基板。
9.一种像素电路的电学老化方法,所述像素电路设置在一阵列基板的显示区的每一像素区域内,其特征在于,所述阵列基板为权利要求1至7中任意一项所述的阵列基板;所述像素电路的电学老化方法包括:
向所述至少一个电压输入端分别施加老化电压信号,以使所述像素电路中的至少部分晶体管在栅极接收到的老化电压信号的作用下进行电学老化。
10.一种显示装置的制作方法,其特征在于,所述显示装置包括如权利要求1至7中任意一项所述的阵列基板;所述阵列基板包括设置在边缘处的切除区域;所述至少一条引线的走线路径均经过所述切除区域;所述显示装置的制作方法包括:
在所述阵列基板上的像素电路经过电学老化后,将所述切除区域切除以切断每一条所述引线。
11.根据权利要求10所述的显示装置的制作方法,其特征在于,所述显示装置的制作方法还包括:
将所述至少一条引线采用激光切割分离。
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US10403209B2 (en) | 2019-09-03 |
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