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CN104749806A - 一种阵列基板、显示面板及显示装置 - Google Patents

一种阵列基板、显示面板及显示装置 Download PDF

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CN104749806A
CN104749806A CN201510172719.8A CN201510172719A CN104749806A CN 104749806 A CN104749806 A CN 104749806A CN 201510172719 A CN201510172719 A CN 201510172719A CN 104749806 A CN104749806 A CN 104749806A
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array base
base palte
electrode
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layer
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CN104749806B (zh
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李光
刘利宾
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BOE Technology Group Co Ltd
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Priority to PCT/CN2016/076261 priority patent/WO2016165512A1/zh
Priority to US15/513,743 priority patent/US9899431B2/en
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    • H01L27/00—Devices consisting of a plurality of semiconductor or other solid-state components formed in or on a common substrate
    • H01L27/02—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
    • 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
    • H01L27/1255—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 integrated with passive devices, e.g. auxiliary capacitors
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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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    • G02F—OPTICAL 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
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    • G09G3/22—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 using controlled light sources
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Abstract

本发明实施例提供一种阵列基板、显示面板及显示装置，涉及显示技术领域，可在不影响封装效果的情况下，减小显示面板的边框宽度，更符合目前市场对于窄边框显示产品的需求。该阵列基板具有显示区域、封装区域以及驱动电路区域，驱动电路区域位于显示区域与封装区域之间；该阵列基板具体包括：设置在封装区域的封装金属层，封装金属层靠近驱动电路区域的一侧上设置有至少一个凹槽结构；设置在驱动电路区域的至少一个驱动单元，驱动单元包括电容结构；其中：电容结构设置在凹槽结构中，且一个凹槽结构用于容纳一个电容结构。用于阵列基板及包括该阵列基板的显示面板及显示装置的制备。

Description

一种阵列基板、显示面板及显示装置
技术领域
本发明涉及显示技术领域，尤其涉及一种阵列基板、显示面板及显示装置。
背景技术
窄边框显示产品是指显示区域(Ative Area，简称AA区)与非显示区域的比例较大，用户在观看图像显示时可获得更优的体验。此外，当窄边框显示产品，如显示面板应用于拼接屏时，由于单个显示面板的边框很窄，能够降低拼接处拼缝的宽度，可显著提高拼接屏的整体显示效果。因此，目前市场对于窄边框显示产品的需求越来越迫切。
目前，显示产品窄边框的设计主要存在以下两点制约因素：
其一、如图1所示，目前显示技术中常用的驱动电路，如栅极驱动电路为GOA(Gate Driver on Array，阵列基板行驱动)电路，在该技术中，GOA电路被直接制作在阵列基板上，从而省略了在传统阵列基板上设置面积较大的栅极驱动IC(Integrated Circuit，集成电路)、用于固定栅极驱动IC的COF(Chip On Film，柔性电路薄膜)以及相应的引线等电路结构部分。因此，相比于传统的显示产品，具有GOA电路的阵列基板可减小对盒后的显示面板的非显示区域的一部分面积。
然而，由于GOA电路相比于传统的栅极驱动IC已经非常简化，对GOA电路再进行简化的难度非常大。因此，很难进一步减小驱动电路区域03所占据的非显示区域的面积。
其二、参考图1所示，对于尺寸一定的显示面板而言，位于显示区域01四周的封装区域02所需的面积也是一定的；如果封装区域02的面积过小，会导致显示面板出现封装不良、盒厚不一等严重缺陷，影响显示面板的正常显示。因此，封装区域所需的面积也是难以进一步减小的。
发明内容
鉴于此，为解决现有技术的问题，本发明的实施例提供一种阵列基板、显示面板及显示装置，可在不影响封装效果的情况下，减小显示面板的边框宽度，更符合目前市场对于窄边框显示产品的需求。
为达到上述目的，本发明提供的实施例采用如下技术方案：
一方面、本发明实施例提供了一种阵列基板，所述阵列基板具有显示区域、封装区域以及驱动电路区域，所述驱动电路区域位于所述显示区域与所述封装区域之间；所述阵列基板包括：设置在所述封装区域的封装金属层，所述封装金属层靠近所述驱动电路区域的一侧上设置有至少一个凹槽结构；设置在所述驱动电路区域的至少一个驱动单元，所述驱动单元包括电容结构；其中：所述电容结构设置在所述凹槽结构中，且一个所述凹槽结构用于容纳一个所述电容结构。
优选的，所述阵列基板还包括绝缘层；沿垂直于所述阵列基板的板面方向，所述电容结构包括：相对设置且绝缘的第一电极与第二电极；所述绝缘层至少位于所述第一电极与所述第二电极之间；所述封装金属层与所述第一电极或所述第二电极同层设置。
进一步优选的，所述驱动单元还包括：至少一个薄膜晶体管；所述第一电极与所述薄膜晶体管的栅极金属层同层设置；所述第二电极与所述薄膜晶体管的源极和漏极金属层同层设置。
在上述基础上优选的，所述驱动电路区域包括栅极驱动电路区域；所述驱动单元包括位于所述栅极驱动电路区域的栅极驱动单元。
在上述基础上优选的，所述栅极驱动电路区域位于所述显示区域沿栅线方向的一侧或两侧。
在上述基础上优选的，所述阵列基板还包括：位于所述封装金属层上的封装胶。
另一方面、本发明实施例还提供了一种显示面板，包括上述的所述的阵列基板。
再一方面、本发明实施例还提供了一种显示装置，包括上述的所述的显示面板。
基于此，在本发明实施例提供的上述阵列基板中，由于封装金属层靠近驱动电路区域的一侧上设置有至少一个凹槽结构，且一个凹槽结构用于容纳一个电容结构，即凹槽结构与电容结构之间为一一对应的关系。因此，上述结构相当于将相对面积较大的电容结构所占据的区域穿插进了封装区域中，即封装区域与驱动电路区域以凹凸穿插的方式相互靠近。相比于现有技术的边框宽度a，当显示区域的尺寸不变，且不改变驱动电路中的电容结构的正对面积时，本发明实施例提供的上述阵列基板的边框宽度a'由于明显减小了电容结构所占据的区域的宽度，而使得本发明实施例提供的上述阵列基板的边框宽度a'明显减小现有技术的边框宽度a。
并且，由于凹槽结构仅设置在封装金属层靠近驱动电路区域的一侧上，对封装金属层为达到相应的封装效果所需的整体面积的影响很小，从而可在不影响封装效果的前提下明显减小现有技术的边框宽度。
这样一来，对于具有同样尺寸的显示面板而言，由于本发明实施例提供的上述阵列基板可具有更小的边框宽度a'，可以将显示区域的面积制备的更大，从而使得显示区域与非显示区域的比例更大，用户在观看图像显示时可获得更优的体验；并且，使得采用上述阵列基板的显示面板应用于拼接屏时，每一子屏间的拼缝更小，显示效果更优。
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简单地介绍，显而易见地，下面描述中的附图仅仅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为现有技术中提供一种阵列基板的各区域俯视结构示意图；
图2为本发明实施例提供的一种阵列基板的俯视结构示意图；
图3为图2中A-A'剖视放大示意图一；
图4为图2中A-A'剖视放大示意图二；
图5为图2中A-A'剖视放大示意图三。
附图标记：
01-显示区域；02-封装区域；03-驱动电路区域；100-衬底基板；11-电容结构；111-第一电极；112-第二电极；12-封装金属层；120-凹槽结构；13-绝缘层；14-栅极金属层；15-源极和漏极金属层。
具体实施方式
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，所描述的实施例仅仅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做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。
需要指出的是，除非另有定义，本发明实施例中所使用的所有术语(包括技术和科学术语)具有与本发明所属领域的普通技术人员共同理解的相同含义。还应当理解，诸如在通常字典里定义的那些术语应当被解释为具有与它们在相关技术的上下文中的含义相一致的含义，而不应用理想化或极度形式化的意义来解释，除非这里明确地这样定义。
本发明实施例提供一种阵列基板，如图2所示，该阵列基板具有显示区域01、封装区域02以及驱动电路区域03，驱动电路区域03位于显示区域01与封装区域02之间；该阵列基板具体包括：设置在封装区域02的封装金属层12，封装金属层12靠近驱动电路区域03的一侧上设置有至少一个凹槽结构120；设置在驱动电路区域03的至少一个驱动单元，驱动单元包括电容结构11；其中：电容结构11设置在凹槽结构120中，且一个凹槽结构120用于容纳一个电容结构11。
首先，为方便理解本发明实施例，现对本发明实施例中涉及到的一些概念进行如下说明。
1、封装金属层12
常见的LCD(Liquid Crystal Display，液晶显示)产品或OLED(Organic Light-Emitting Display，有机电致发光显示)产品，其整体结构都是由阵列基板与对盒基板(彩膜基板或封装基板)对盒而成，需要通过在封装区域涂覆封装胶(通常为frit玻璃胶)来使二者对盒，为了使封框胶受热固化时均匀，并提高封装的密闭性，在阵列基板的封装区域上会先形成由一层或多层金属层构成的封装金属层，之后再在封装金属层上涂覆封框胶。
在本发明实施例中，封装金属层12可以为金属单质和/或合金，具体材料可沿用现有技术，不作限定。
2、驱动电路区域03
上述的驱动电路区域03是指设置有用于驱动阵列基板显示的电路，该驱动电路可以包括但不限于栅极驱动电路(GOA)、源极驱动电路。
3、电容结构11
以栅极驱动电路为例，常见的栅极驱动电路是由多个级联的栅极驱动单元构成，每个栅极驱动单元中均包括用于存储电量的栅极驱动电容结构，根据阵列基板中具体电路设计的不同，栅极驱动电路的结构也略有差异，在此不一一描述，但其原理都是在阵列基板中起到移位寄存器的作用，故所有的栅极驱动电路中必然都存在有上述的电容结构。
本发明实施例对以栅极驱动单元为例的上述驱动单元中除电容结构11外的其余电路结构不作限定，可沿用现有技术的设计。
这里，由于电容器可分为多种，如圆柱电容器、球形电容器以及平板电容器等。其中，平板电容器是由间隔一定距离，中间以空间或介电质隔离的两片电极板构成。本发明具体实施例中涉及到的上述电容结构11为平板电容器。
由于整个栅极驱动电路为了实现上述的移位寄存器的作用，电容结构11需具有一定的电量存储能力(以C来表征)；并且，当栅极驱动电路应用于驱动尺寸更大的显示面板时，为了响应大尺寸显示面板对行驱动电路的要求，上述电容结构11的电容C也会随着增大。
平板电容器的电容C具有以下表达式：
C = ϵ · A d ;
其中，ε为介质的电容器率，A为电极板的正对面积，d为电极板间隔距离。
由上述表达式可知，电容C与介质的电容器率ε、电极板的正对面积A、以及电极板间隔距离d有关。
对于具有一定设计规格要求的栅极驱动单元中的电容结构11而言，由于应用于显示面板的介质材料通常为氮化硅、氧化硅等材料，电容器率ε的数值相对固定；而电极板间隔距离d难以进一步减小，因此，对于显示面板而言，可以认为上述电容结构11的电容C正比于电极板的正对面积A。
因此，为了满足电路设计要求对于电容结构11的电容C的要求，需要电容结构11中的电极板具有相对较大面积的正对面积A，从而导致电容结构11所占据的区域面积较大。
基于此，在本发明实施例提供的上述阵列基板中，由于封装金属层12靠近驱动电路区域03的一侧上设置有至少一个凹槽结构120，且一个凹槽结构120用于容纳一个电容结构11，即凹槽结构120与电容结构11之间的位置关系为一一对应。因此，上述结构相当于将相对面积较大的电容结构11所占据的区域穿插进了封装区域02中，即沿图3中的横向方向上，封装区域02与驱动电路区域03以凹凸穿插的方式相互靠近。一并参考图3所示，相比于图1中所示的现有技术的边框宽度a，当显示区域01的尺寸不变，且不改变驱动电路中的电容结构的正对面积时，本发明实施例提供的上述阵列基板的边框宽度a'由于明显减小了电容结构11所占据的区域的宽度，而使得本发明实施例提供的上述阵列基板的边框宽度a'明显减小现有技术的边框宽度a。
并且，由于凹槽结构120仅设置在封装金属层12靠近驱动电路区域03的一侧上，对封装金属层12为达到相应的封装效果所需的整体面积的影响很小，从而可在不影响封装效果的前提下明显减小现有技术的边框宽度。
这样一来，对于具有同样尺寸的显示面板而言，由于本发明实施例提供的上述阵列基板可具有更小的边框宽度a'，可以将显示区域01的面积制备的更大，从而使得显示区域01与非显示区域的比例更大，用户在观看图像显示时可获得更优的体验；并且，使得采用上述阵列基板的显示面板应用于拼接屏时，每一子屏间的拼缝更小，显示效果更优。
进一步的，如图4和图5所示，阵列基板还具体包括绝缘层13；沿垂直于所述阵列基板的板面方向(即图4、图5所示的剖视图)，电容结构11包括相对设置且绝缘的第一电极111与第二电极112；绝缘层13至少位于第一电极111与第二电极112之间；封装金属层12与第一电极111或第二电极112同层设置。
需要说明的是，第一、绝缘层13的作用是使第一电极111与第二电极112相互间隔开以形成上述的电容结构11。因此，绝缘层13应至少位于上述的两个电极之间。当然，考虑到简化阵列基板整体制备工艺，绝缘层13也可参考如图4或图5所示，还设置于封装区域02，具体不作限定。
第二、所谓“同层设置”，是针对至少两种图形而言的，是指将至少两种图形设置在同一层薄膜上的结构。具体的，可以是通过同一构图工艺在采用同种材料制成的一层薄膜上形成上述的至少两种图形。
例如，参考图4所示，封装金属层12与电容结构11中的第一电极111一并设置在衬底基板100上；或者，参考图5所示，封装金属层12与电容结构11中的第二电极112一并设置在绝缘层13上。这样一来可以在制备封装金属层12时一并制备电容结构11中的一个电极板，从而提高了阵列基板的构图工艺的利用率，简化制备工艺。
进一步的，参考图4所示，驱动单元还包括至少一个薄膜晶体管(Thin Film Transistor，薄膜晶体管)；第一电极111与薄膜晶体管的栅极金属层14同层设置；第二电极112与薄膜晶体管的源极和漏极金属层15同层设置。
需要说明的是，栅极金属层14是指包括有薄膜晶体管的栅极的图案层；源极和漏极金属层15是指包括有薄膜晶体管的源极与漏极的图案层。
驱动单元中的TFT的数量不作限定，可以根据驱动电路的具体电路设计调整TFT的数量。当驱动单元中的TFT的数量为多个时，上述的栅极金属层14即指包括有所有TFT的栅极的图案层，源极和漏极金属层15指包括有所有TFT的源极与漏极的图案层。
这样一来，当封装金属层12与第一电极111同层设置时，由于第一电极111还与栅极金属层14同层设置，因此可以在同一个构图工艺下制备上述的封装金属层12、第一电极111以及栅极金属层14，或者，在同一个构图工艺下制备上述的封装金属层12、第二电极112以及源极和漏极金属层15，从而进一步简化工艺过程，降低成本。
尽管本发明实施例中未示意出，但本领域技术人员还应理解，显示区域01中包括有呈矩阵排列的多个像素单元，每一像素单元中包括有TFT，第一电极111在与驱动单元的TFT中的栅极金属层14同层设置的同时，也可以与显示区域01的TFT的栅极金属层同层设置；当然，第二电极112在与驱动单元的TFT中的源极和漏极金属层15同层设置的同时，也可以与显示区域01的TFT的源极和漏极金属层同层设置，以进一步提高对构图工艺的利用率，简化制备工艺。
在此情况下，绝缘层13还可以延伸至显示区域01，具体可以为覆盖各个区域TFT的栅极金属层的栅绝缘层。
这里，图4中仅以相对于衬底基板100而言，第一电极111位于下方，第二电极112位于上方为例进行示例，第一电极111与第二电极112的相对位置可以等效对换，具体不作限定。
在上述基础上，考虑到目前在阵列基板上直接制版的驱动电路主要为栅极驱动电路，可取代传统的栅极驱动IC对栅线进行直接行扫描驱动，因此，本发明实施例进一步优选的，上述的驱动电路区域03包括栅极驱动电路区域，驱动单元包括位于该栅极驱动电路区域的栅极驱动单元。
进一步的，参考图2所示，当驱动电路区域03包括有栅极驱动电路区域时，栅极驱动电路区域优选地设置于显示区域01沿栅线方向的一侧或两侧，从而可以无需设置额外的用于连接栅极驱动电路与栅线的引线等电路结构，避免增加显示区域01外侧的非显示区域的面积。
进一步的，阵列基板还包括：位于封装金属层12上的封装胶。
这里，由于电容结构11穿插地位于封装金属层12的凹槽结构120处，在利用激光照射玻璃胶以使其熔融时，为了避免激光照射对电容结构11器件性能的影响，可以通过调节激光束的照射路径，使其激光仅照射到封装金属层12的部分，以避免由于激光照射可能对电容结构11造成的影响。
在上述基础上，本发明实施例还提供了一种显示面板，包括上述的阵列基板。
进一步的，本发明实施例还提供了一种显示装置，包括上述的显示面板。
这里，上述的显示装置具体可以为液晶显示装置，如液晶电视、OLED电视或电子纸、数码相框、手机、平板电脑、显示器、笔记本电脑、导航仪等具有任何显示功能的产品或者部件。
需要说明的是，本发明所有附图是阵列基板的简略的示意图，只为清楚描述本方案体现了与发明点相关的结构，对于其他的与发明点无关的结构是现有结构，在附图中并未体现或只体现部分。
以上所述，仅为本发明的具体实施方式，但本发明的保护范围并不局限于此，任何熟悉本技术领域的技术人员在本发明揭露的技术范围内，可轻易想到变化或替换，都应涵盖在本发明的保护范围之内。因此，本发明的保护范围应以所述权利要求的保护范围为准。

Claims (8)

1.一种阵列基板，其特征在于，所述阵列基板具有显示区域、封装区域以及驱动电路区域，所述驱动电路区域位于所述显示区域与所述封装区域之间；
所述阵列基板包括：设置在所述封装区域的封装金属层，所述封装金属层靠近所述驱动电路区域的一侧上设置有至少一个凹槽结构；
设置在所述驱动电路区域的至少一个驱动单元，所述驱动单元包括电容结构；其中：
所述电容结构设置在所述凹槽结构中，且一个所述凹槽结构用于容纳一个所述电容结构。
2.根据权利要求1所述的阵列基板，其特征在于，所述阵列基板还包括绝缘层；
沿垂直于所述阵列基板的板面方向，所述电容结构包括：相对设置且绝缘的第一电极与第二电极；所述绝缘层至少位于所述第一电极与所述第二电极之间；
所述封装金属层与所述第一电极或所述第二电极同层设置。
3.根据权利要求2所述的阵列基板，其特征在于，所述驱动单元还包括：至少一个薄膜晶体管；
所述第一电极与所述薄膜晶体管的栅极金属层同层设置；所述第二电极与所述薄膜晶体管的源极和漏极金属层同层设置。
4.根据权利要求1至3任一项所述的阵列基板，其特征在于，
所述驱动电路区域包括栅极驱动电路区域；所述驱动单元包括位于所述栅极驱动电路区域的栅极驱动单元。
5.根据权利要求4任一项所述的阵列基板，其特征在于，所述栅极驱动电路区域位于所述显示区域沿栅线方向的一侧或两侧。
6.根据权利要求1至3任一项所述的阵列基板，其特征在于，所述阵列基板还包括：位于所述封装金属层上的封装胶。
7.一种显示面板，其特征在于，包括如权利要求1至6任一项所述的阵列基板。
8.一种显示装置，其特征在于，包括如权利要求7所述的显示面板。
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