CN105870056B - 阵列基板及制作方法 - Google Patents
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Abstract
本发明提供一种阵列基板及制作方法,该阵列基板包括:一玻璃基板;栅电极,其设置于该玻璃基板上;第一绝缘层,其沉积于该玻璃基板以及栅电极上;半导体层,其设置于该第一绝缘层上并位于栅电极上方;平坦层,其设置于第一绝缘层上;源极和漏极,该源极和漏极均设置于平坦层以及半导体层上;像素电极层,其设置于平坦层以及该漏极上;第二绝缘层,其设置于平坦层、半导体层、源极以及漏极上。本发明具有避免在开孔处形成气泡、提高开口率的有益效果,并且该平坦层还增大了源极、漏极与栅电极之间的距离,可以提高抗静电能力。
Description
技术领域
本发明涉及液晶显示领域,特别是涉及一种阵列基板及制作方法。
背景技术
目前LCD显示器制造中,多采用接触孔的方式导通像素电极层与漏极金属层,接触孔的方式容易带来以下问题:为保证一定的接触性接触孔较大从而降低了开口率,地形上形成坑状容易形成气泡等。
现有技术存在缺陷,急需改进。
发明内容
本发明的目的在于提供一种阵列基板及制作方法;以解决现有技术中阵列基板的开口率低的技术问题。
为解决上述问题,本发明提供的技术方案如下:
本发明实施例提供一种阵列基板,包括:
一玻璃基板;
栅电极,其设置于该玻璃基板上;
第一绝缘层,其沉积于该玻璃基板以及栅电极上;
半导体层,其设置于该第一绝缘层上并位于栅电极上方;
平坦层,其设置于第一绝缘层上;
源极,该源极设置于平坦层以及半导体层上;
漏极,该漏极设置于平坦层以及半导体层上;
像素电极层,其设置于平坦层以及该漏极上;
第二绝缘层,其设置于平坦层、半导体层、源极以及漏极上。
在本发明所述的阵列基板中,所述半导体层包括:
非晶硅层,其沉积于所述第一绝缘层上;
掺杂半导体层,其设置于所述非晶硅层上。
在本发明所述的阵列基板中,所述第一绝缘层采用氮化硅和/或二氧化硅。
在本发明所述的阵列基板中,所述第二绝缘层采用氮化硅和/或二氧化硅。
在本发明所述的阵列基板中,所述平坦层采用纳米粉末状材料或液态绝缘材料采用3D打印形成。
在本发明所述的阵列基板中,所述漏极的远离源极一侧的侧壁面朝向源极的方向倾斜,该像素电极层将该侧壁面覆盖。
本发明还提供了一种阵列基板的制作方法,包括以下步骤:
在玻璃基板上设置栅电极;
在玻璃基板以及栅电极上沉积第一绝缘层;
在第一绝缘层上沉积半导体层,该半导体层位于栅电极上方;
在第一绝缘层上设置平坦层;
在平坦层以及半导体层上设置源极;
在平坦层以及半导体层上设置漏极;
在平坦层以及该漏极上设置像素电极层;
在平坦层、半导体层、源极以及漏极上沉积第二绝缘层。
在本发明所述的阵列基板的制作方法中,所述平坦层采用纳米粉末状材料或液态绝缘材料采用3D打印形成。
在本发明所述的阵列基板的制作方法中,所述漏极的远离源极一侧的侧壁面朝向源极的方向倾斜,该像素电极层将该侧壁面覆盖。
在本发明所述的阵列基板的制作方法中,所述第一绝缘层以及第二绝缘层均采用氮化硅和/或二氧化硅。
相对于现有技术,本发明提供的阵列基板通过在第一绝缘层上设置平坦层,然后将源极以及漏极设置在该平坦层以及半导体层上,无需设置源极过孔以及漏极过孔即可实现源极、漏极与半导体层的电连接,并且直接将像素电极层设置于平坦层以及该漏极上,无需设置过孔即可实现漏极与像素电极层的电连接,具有避免在开孔处形成气泡、提高开口率的有益效果,并且该平坦层还增大了源极、漏极与栅电极之间的距离,可以提高抗静电能力。
附图说明
图1为本发明一优选实施例中的阵列基板的结构示意图;
图2为本发明一优选实施例中阵列基板的制作方法的流程图。
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。
在图中,结构相似的单元是以相同标号表示。
请参照图1,图1为本发明的阵列基板的优选实施例的结构示意图。本优选实施例的一种阵列基板,包括:玻璃基板10、栅电极20、第一绝缘层30、半导体层40、平坦层50、源极70、漏极60、像素电极层80以及第二绝缘层90。
其中,该栅电极20设置于该玻璃基板10上,形成该栅电极20时,先采用物理气象沉淀法在玻璃基板10上沉积形成栅电极层,然后对该栅电极层进行图像化处理,从而形成该栅电极20。
该第一绝缘层30沉积于该玻璃基板10以及栅电极20上,该第一绝缘层30用于将栅电极20以及半导体层40绝缘开,其可以采用氮化硅、氧化硅等无机绝缘材料;该第一绝缘层30采用化学气象沉淀法沉积于该玻璃基板10以及该栅电极20上。
该半导体层40设置于该第一绝缘层30上并位于栅电极20上方,其包括沉积于第一绝缘层30上的非晶硅层以及设置于该非晶硅层上的掺杂半导体层40。制作该半导体层40时,先采用气象沉淀法在第一绝缘层30上沉积一层非晶硅,然后对该一层非晶硅进行图像化处理形成位于底部的非晶硅层41以及位于非晶硅层41上的第一接触部以及第二接触部,并对该第一接触部以及第二接触部进行掺杂,以形成掺杂半导体层42。该掺杂半导体层42用于将源极70以及漏极60分别与非晶硅层41电连接。
该平坦层50设置于第一绝缘层30上,其可以采用氮化硅、氧化硅等无机绝缘材料,也可以采用有机绝缘材料。该平坦层50采用化学气象沉淀法沉积于该第一绝缘层30上。该平坦层50采用纳米粉末状材料或液态绝缘材料采用3D打印形成。
该平坦层50与该第一接触部以及第二接触部的远离该非晶硅层41的一端的端面齐平,便于后续的源极70以及漏极60的形成。
该源极70和漏极60均设置于平坦层50以及半导体层40上,具体地,该源极70设置于该第一接触部以及平坦层50上,该漏极60设置于该第二接触部以及该平坦层50上。
该像素电极层80设置于平坦层50以及该漏极60上,其上形成有像素电极。优选地,漏极60的远离源极70一侧的侧壁面朝向源极70的方向倾斜,该像素电极层80将该侧壁面覆盖并覆盖该漏极70的上端面的部分。
该第二绝缘层90设置于于平坦层50、半导体层40、源极70以及漏极60上。该第二绝缘层90可以采用氮化硅和/或二氧化硅等材料进行化学气相沉淀形成。
本优选实施例提供的阵列基板通过在第一绝缘层30上设置平坦层50,然后将源极70以及漏极60设置在该平坦层50以及半导体层40上,无需设置源极过孔以及漏极过孔即可实现源极70、漏极60与半导体层40的电连接,并且直接将像素电极层80设置于于平坦层50以及该漏极60上,无需设置过孔即可实现漏极60与像素电极层80的电连接,具有避免在开孔处形成气泡、提高开口率的有益效果,并且该平坦层50还增大了源极、漏极与栅电极20之间的距离,可以提高抗静电能力。
请参照图2,图2为本发明的阵列基板的制作方法优选实施例的流程图。本优选实施例中的阵列基板的制作方法包括以下步骤:
S201、在玻璃基板上设置栅电极;
S202、在玻璃基板以及栅电极上沉积第一绝缘层;
S203、在第一绝缘层上沉积半导体层,该半导体层位于栅电极上方;
S204、在第一绝缘层上设置平坦层;
S205、在平坦层以及半导体层上设置源极;
S206、在平坦层以及半导体层上设置漏极;
S207、在平坦层以及该漏极上设置像素电极层;
S208、在平坦层、半导体层、源极以及漏极上沉积第二绝缘层。
下面对该阵列基板的制作方法的各个步骤进行详细的说明。
在步骤S201中,形成该栅电极20时,先采用物理气象沉淀法在玻璃基板10上沉积形成栅电极层,然后对该栅电极层进行图像化处理,从而形成该栅电极20。
在步骤S202中,该第一绝缘层30采用化学气象沉淀法沉积于该玻璃基板10以及该栅电极20上;其可以采用氮化硅、氧化硅等无机绝缘材料。
在步骤S203中,该半导体层40包括沉积于第一绝缘层30上的非晶硅层以及设置于该非晶硅层上的掺杂半导体层42。制作该半导体层40时,先采用气象沉淀法在第一绝缘层30上沉积一层非晶硅,然后对该一层非晶硅进行图像化处理形成位于底部的非晶硅层41以及位于非晶硅层41上的第一接触部以及第二接触部,并对该第一接触部以及第二接触部进行掺杂,以形成掺杂半导体层42。该掺杂半导体层40用于将源极70以及漏极60分别与非晶硅层41电连接。
在步骤S204中,该平坦层50可以采用氮化硅、氧化硅等无机绝缘材料,也可以采用有机绝缘材料。该平坦层50可以采用化学气象沉淀法沉积于该第一绝缘层30上。该平坦层50也可以采用纳米粉末状材料或液态绝缘材料采用3D打印形成。该平坦层50与该第一接触部以及第二接触部的远离该非晶硅层41的一端的端面齐平,便于后续的源极70以及漏极60的形成。
在步骤S205以及步骤S206中,该源极70设置于该第一接触部以及平坦层50上,该漏极设置于该第二接触部以及该平坦层50上。
在步骤S207中,该像素电极层80其上形成有多个像素电极。优选地,漏极60的远离源极70一侧的侧壁面朝向源极70的方向倾斜,该像素电极层80将该侧壁面覆盖并覆盖该漏极60的上端面的部分,漏极60的这种形状设置有利于提高该像素电极层80与该漏极60的接触面积,从而提高导电性。
在步骤S208中,该第二绝缘层90可以采用氮化硅和/或二氧化硅等材料进行化学气相沉淀形成。
本优选实施例提供的阵列基板的制作方法通过在第一绝缘层30上设置平坦层50,然后将源极以及漏极设置在该平坦层50以及半导体层40上,无需设置源极过孔以及漏极过孔即可实现源极、漏极与半导体层40的电连接,并且直接将像素电极层80设置于于平坦层50以及该漏极60上,无需设置过孔即可实现漏极60与像素电极层80的电连接,具有避免在开孔处形成气泡、提高开口率的有益效果,并且该平坦层50还增大了源极70、漏极60与栅电极20之间的距离,可以提高抗静电能力。
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 (8)
1.一种阵列基板的制作方法,其特征在于,包括以下步骤:
在玻璃基板上设置栅电极;
在玻璃基板以及栅电极上沉积第一绝缘层;
在第一绝缘层上沉积半导体层,该半导体层位于栅电极上方;
在第一绝缘层上设置平坦层;
在平坦层以及半导体层上设置源极;
在平坦层以及半导体层上设置漏极;
在平坦层以及该漏极上设置像素电极层;
在平坦层、半导体层、源极以及漏极上沉积第二绝缘层;
其中,所述漏极的远离源极一侧的侧壁面朝向源极的方向倾斜,该像素电极层将所述漏极的上端面以及该侧壁面覆盖。
2.根据权利要求1所述的阵列基板的制作方法,其特征在于,所述平坦层采用纳米粉末状材料或液态绝缘材料采用3D打印形成。
3.根据权利要求1所述的阵列基板的制作方法,其特征在于,所述第一绝缘层以及第二绝缘层均采用氮化硅和/或二氧化硅。
4.一种采用如权利要求1~3任一权利要求所述的制作方法制备的阵列基板,其特征在于,包括:
一玻璃基板;
栅电极,其设置于该玻璃基板上;
第一绝缘层,其沉积于该玻璃基板以及栅电极上;
半导体层,其设置于该第一绝缘层上并位于栅电极上方;
平坦层,其设置于第一绝缘层上;
源极,该源极设置于平坦层以及半导体层上;
漏极,该漏极设置于平坦层以及半导体层上;
像素电极层,其设置于平坦层以及该漏极上;
第二绝缘层,其设置于平坦层、半导体层、源极以及漏极上;
其中,所述漏极的远离源极一侧的侧壁面朝向源极的方向倾斜,该像素电极层将所述漏极的上端面以及该侧壁面覆盖。
5.根据权利要求4所述的阵列基板,其特征在于,所述半导体层包括:
非晶硅层,其沉积于所述第一绝缘层上;
掺杂半导体层,其设置于所述非晶硅层上。
6.根据权利要求4所述的阵列基板,其特征在于,所述第一绝缘层采用氮化硅和/或二氧化硅。
7.根据权利要求4所述的阵列基板,其特征在于,所述第二绝缘层采用氮化硅和/或二氧化硅。
8.根据权利要求4所述的阵列基板,其特征在于,所述平坦层采用纳米粉末状材料或液态绝缘材料采用3D打印形成。
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