CN106647053A - 一种液晶显示屏及其制作方法 - Google Patents
一种液晶显示屏及其制作方法 Download PDFInfo
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Abstract
本发明涉及液晶显示屏技术领域,具体公开了一种液晶显示屏及其制作方法,其包括第一基板和第二基板,第二基板为晶体管阵列基板,所述液晶显示屏的色阻与垫层同位于第二基板侧,第一基板的取向膜与框胶之间距离为0。本发明还公开了一种液晶显示屏的制程方法,其液晶滴下的步骤包括:先涂布框胶于第一基板,再涂布取向膜于第一基板,使得所述框胶能阻挡所述取向膜的漫流扩散。本发明改进了现有的液晶滴下制程,能实现在晶体管上滤色器制程加晶体管上垫层应用于液晶显示屏的窄边框设计时,避免出现框胶剥离的问题,提高成品良率,且所述工艺具有简单、高效、不提高成本的特点。
Description
技术领域
本发明涉及液晶显示屏技术领域,尤其涉及液晶显示屏产品及其制作工艺。
背景技术
液晶显示屏(Liquid Crystal Display,LCD)。常见的晶体管阵列-液晶显示屏(Thin Film Transistor-Liquid Crystal Display,TFT-LCD)的构造是在两片平行的基板当中放置液晶盒,第二基板上设置晶体管阵列(Thin Film Transistor,TFT),第一基板上设置彩色滤光片(Color Filter,CF),通过晶体管阵列上的信号与电压改变来控制液晶分子的转动方向,从而达到控制每个像素点偏振光的出射与否,进而达到显示目的。
液晶显示屏发展至今,已经成熟的推出晶体管上滤色器(Color Filter On TFT,COT)技术来实现更高要求的应用,液晶显示屏的第一基板上形成有黑矩阵(Black Matrix,BM)、取向膜(Polyimide Film,PI),液晶显示屏的第二基板形成有彩色滤光片、取向膜。在液晶显示屏的第一基板和第二基板之间形成用于保持液晶单元的单元间隙的柱状衬垫料——垫层(Photo Spacer,PS);液晶显示屏的第一基板和第二基板之间通过框胶(Sealant)进行粘连和封闭。
液晶显示屏进行窄边框设计时,显示区离边缘非常窄,所以框胶区域的边缘设计裕度非常小,总会遇到取向膜与框胶互相干涉的问题,而当搭配晶体管上滤色器结构进行液晶显示屏设计时,则可以非常方便的利用垫层与色阻制作挡墙,阻挡取向膜往外漫流扩散。由于取向膜的附着性能较差,无法承受框胶相应的拉力,使得附着于其上的框胶非常容易出现剥离的问题。
但是,随着制程的变更推新,晶体管上滤色器制程加晶体管上垫层(PS on TFT,POT)应用时,第一基板上原来的垫层挡墙不复存在,如此设计窄边框产品时,第一基板上的取向膜则没有阻挡结构去限制其漫流与扩散,最终会发生取向膜介入框胶与黑矩阵之间的介面,导致框胶剥离。
现有的液晶滴下制程(One Drop Filling,ODF),都是先涂布取向膜再涂框胶而后滴入液晶,最后对组成盒。因此,依照现有的制程技术无法克服取向膜漫流与扩散的问题。
发明内容
本发明要解决的技术问题是:避免液晶显示屏在进行窄边框设计时遭遇取向膜漫流扩散至框胶和黑矩阵区域而导致框胶剥离。
本发明要解决的另一个技术问题是:改进现有的液晶滴下制程工艺,并克服框胶剥离的液晶显示屏工艺缺陷,提高成品良率,且所述工艺具有简单、高效、不提高成本的特点。
在本发明的一实施例中,所述的一种液晶显示屏,其包括第一基板和第二基板,第二基板为晶体管阵列基板,所述液晶显示屏的色阻与垫层同位于第二基板侧,第一基板的取向膜与框胶之间距离为0。
在本发明的一实施例中,所述第一基板的取向膜堆积于框胶之前,且所述取向膜末端厚度大于取向膜显示区域端厚度。
在本发明的一实施例中,所述的一种液晶显示屏的制程,其液晶滴下制程包括:先涂布框胶于第一基板,再涂布取向膜于第一基板,使得所述框胶在第一基板的四周形成一层阻挡结构,以阻挡所述取向膜的漫流扩散;先涂布框胶于第二基板,再涂布取向膜于第二基板,在第二基板四周,临近框胶区域的色阻结构为一层阻挡结构,以阻挡所述取向膜的漫流扩散。
在本发明的一实施例中,所述的一种液晶显示屏,其包括第一基板和第二基板,第二基板为晶体管阵列基板,所述液晶显示屏的色阻与垫层同位于第一基板,第二基板的取向膜与框胶之间距离为0。
在本发明的一实施例中,所述第二基板的取向膜堆积于框胶之前,且所述取向膜末端厚度大于取向膜显示区域端厚度。
在本发明的一实施例中,所述的一种液晶显示屏的制程,其液晶滴下制程包括:先涂布框胶于第二基板,再涂布取向膜于第二基板,使得所述框胶在第二基板的四周形成一层阻挡结构,以阻挡所述取向膜的漫流扩散;先涂布框胶于第一基板,再涂布取向膜于第一基板,在第一基板四周,临近框胶区域的色阻结构为一层阻挡结构,以阻挡所述取向膜的漫流扩散。
在本发明的一实施例中,所述框胶用于粘连所述第一基板和所述第二基板,其材料为非热固化型,或者所述框胶的固化温度比所述取向膜的固化温度更高。
在本发明的一实施例中,所述取向膜涂布于所述第一基板和所述第二基板上,形成一层均匀的取向层,使位于两基板之间的液晶分子取向为一定方向的预倾角。
在本发明的一实施例中,所述黑矩阵用于阻挡所述第一基板和所述第二基板上的扫描线和数据线以及分割相邻色阻。
在本发明的一实施例中,所述垫层用于抵御施加于液晶面板上的压力,支撑和维持所述第一基板和所述第二基板之间的距离。
本发明的有益效果在于:改进了现有的液晶滴下制程,能实现在晶体管上滤色器制程加晶体管上垫层应用于液晶显示屏的窄边框设计时,避免第一基板和第二基板出现框胶剥离的问题,提高成品良率,且所述工艺具有简单、高效、不提高成本的特点。
附图说明
图1晶体管上滤色器制程加晶体管上垫层应用的液晶显示屏结构图。
图2本发明一实施例的第一基板液晶滴下制程示意图。
图3第一基板的液晶滴下工艺流程图。
图4非晶体管上滤色器制程加非晶体管上垫层应用的液晶显示屏结构图。
图5本发明一实施例的第二基板液晶滴下制程示意图。
图6第二基板的液晶滴下结构流程图。
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。
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。
在附图中,为了清晰起见,夸大了层、膜、面板、区域等的厚度。在附图中,为了理解和便于描述,夸大了一些层和区域的厚度。将理解的是,当例如层、膜、区域或基底的组件被称作“在”另一组件“上”时,所述组件可以直接在所述另一组件上,或者也可以存在中间组件。
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,对本发明提出的一种液晶显示屏结构其具体实施方式、结构、特征以及功效,详细说明如后。
在本发明的一实施例中,所述框胶用于粘连所述第一基板和所述第二基板,其材料为非热固化型,或者所述框胶的固化温度比所述取向膜的固化温度更高。
在本发明的一实施例中,所述取向膜涂布于所述第一基板和所述第二基板上,形成一层均匀的取向层,使位于两基板之间的液晶分子取向为一定方向的预倾角。
在本发明的一实施例中,所述垫层用于抵御施加于液晶面板上的压力,支撑和维持所述第一基板和所述第二基板间的距离。
在本发明的一实施例中,所述色阻包括主体部和延长部,位于显示区的色阻用于呈现多种颜色,位于基板四周,临近框胶区域的色阻则作为一层阻挡结构。
在本发明的一实施例中,所述黑矩阵用于阻挡所述第一基板和所述第二基板上的扫描线和数据线以及分割相邻色阻。
本发明一种液晶显示屏的一实施例,所述液晶显示屏包括第一基板和第二基板,第二基板为晶体管阵列基板。如图1所示,图1为晶体管上滤色器制程加晶体管上垫层应用的液晶面板结构图,所述液晶显示屏的垫层103与色阻104同位于所述第二基板侧。
在进行第一基板100的框胶101和取向膜102涂布时,先涂布框胶101,再涂布取向膜102,利用所述框胶101的布局结构作为挡墙,以阻挡所述取向膜102的漫流扩散,所述取向膜102不会介入框胶101和黑矩阵105之间的界面。
其中,所述第一基板100的取向膜102与所述框胶101之间的距离为0,且所述取向膜102堆积于所述框胶101之前,所述取向膜102末端厚度(t1)大于其在显示区域端的厚度(t2),t1与t2之间的关系为t1>t2。
在进行第二基板200的框胶101和取向膜102涂布时,先涂布框胶101,再涂布取向膜102,第二基板200在靠近框胶101的区域有色阻104存在,可利用色阻104作为挡墙,阻挡所述取向膜102的漫流扩散。
其中,所述第二基板200的取向膜102和色阻104之间的距离为0。
如图2所示,其为第一基板的液晶滴下制程示意图,请同时参考图3的第一、第二基板的液晶滴下工艺流程图。本发明的液晶滴下制程只需改变原有的工艺流程顺序,就可以避免出现框胶剥离的问题,改良后的液晶滴下制程如下所示:
步骤S101涂布框胶于第一基板:框胶202涂布于第一基板201,框胶202自身可以在第一基板201的四周形成一层阻挡结构。
步骤S102涂布取向膜于第一基板:在第一基板上涂布取向膜203,取向膜203向第一基板的四周漫流扩散,直至取向膜203与框胶202接触,利用框胶202的阻挡结构可阻挡取向膜203继续漫流扩散,而后取向膜203堆积于框胶202之前。
步骤S103涂布框胶于第二基板:框胶涂布于第二基板。
步骤S104涂布取向膜于第二基板:取向膜涂布于第二基板,在靠近第二基板框胶的区域有色阻存在,利用所述色阻作为挡墙,可以阻挡所述取向膜的漫流扩散。
根据这种工艺技术,即使在第一基板201上没有相应的垫层或色阻作为挡墙,依然能够改而利用框胶202来阻挡取向膜203漫流扩散,避免在进行液晶显示屏的窄边框设计时,出现框胶202剥离的现象。
在改变制程顺序的同时,框胶材料也需要做相应的调整,框胶材料必须搭配为非热固化型或是固化温度比取向膜的固化温度更高的材料,如此,当取向膜进行热固化时,才能使框胶不受取向膜固化温度影响,并在第一基板和第二基板对组成盒的工艺流程后,在不影响显示屏结构性能的基础上进行框胶固化反应。
本发明一种液晶显示屏的又一实施例,当非晶体管上滤色器制程加非晶体管上垫层应用时,如图4所示,图4为非晶体管上滤色器制程加非晶体管上垫层应用的液晶面板结构图,色阻104与垫层103同样是位于所述第一基板侧,此时可反过来实施,在进行第一基板100的框胶101和取向膜102涂布时,先涂布框胶101,再涂布取向膜102,第一基板100在靠近框胶101的区域有色阻104存在,可利用色阻104作为挡墙,以阻挡所述取向膜102的漫流扩散,所述取向膜102不会介入框胶101和黑矩阵105之间的界面。
其中,所述第一基板的取向膜102和色阻104之间的距离为0。
在进行第二基板200的框胶101和取向膜102涂布时,先涂布框胶101,再涂布取向膜102,利用所述框胶101的布局结构作为挡墙,以阻挡所述取向膜102的漫流扩散。
其中,所述第二基板200的取向膜102与所述框胶101之间的距离为0,且所述取向膜102堆积于所述框胶101之前,所述取向膜102末端厚度(t1)大于其在显示区域端的厚度(t2),t1与t2之间的关系为t1>t2。
如图5所示,其为第二基板的液晶滴下制程示意图,请同时参考图6的第一、第二基板的液晶滴下工艺流程图,其液晶滴下制程如下所示:
步骤S201涂布框胶于第二基板:框胶302涂布于第二基板301,框胶302自身可以在第二基板301的四周形成一层阻挡结构。
步骤S202涂布取向膜于第二基板:在第二基板上涂布取向膜303,取向膜303向第二基板的四周漫流扩散,直至取向膜303与框胶302接触,利用框胶302的阻挡结构可阻挡取向膜303继续漫流扩散,而后取向膜303堆积于框胶302之前。
步骤S203涂布框胶于第一基板:框胶涂布于第一基板。
步骤S204涂布取向膜于第一基板:取向膜涂布于第一基板,在靠近第一基板框胶的区域有色阻存在,利用所述色阻作为挡墙,可以阻挡所述取向膜的漫流扩散。
在第二基板301上没有相应的垫层或色阻作为挡墙,依然能够改而利用框胶302来阻挡取向膜303漫流扩散,避免在进行液晶显示屏的窄边框设计时,出现框胶302剥离的现象。
以上所述实施例仅是为充分说明本发明而举的较佳实施例,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,但本发明的保护范围不限于此。本技术领域的技术人员在本发明基础上所做的等同替代或变换,均在本发明的保护范围之内。本发明的保护范围以权利要求书为准。
Claims (9)
1.一种液晶显示屏,其特征在于,其包括:
第一基板;
第二基板,其为晶体管阵列基板,与第一基板相对设置;所述液晶显示屏的色阻与垫层同位于第二基板侧,第一基板的取向膜与框胶之间距离为0。
2.如权利要求1所述的液晶显示屏,其特征在于,所述取向膜堆积于所述框胶之前,取向膜末端厚度大于取向膜显示区域端厚度。
3.如权利要求1所述的液晶显示屏,其特征在于,还包括黑矩阵,所述黑矩阵用于阻挡所述第一基板和所述第二基板上的扫描线和数据线以及分割相邻色阻。
4.一种液晶显示屏,其特征在于,其包括:
第一基板;
第二基板,其为晶体管阵列基板,与第一基板相对设置;所述液晶显示屏的色阻与垫层同位于第一基板,第二基板的取向膜与框胶之间距离为0。
5.如权利要求4所述的液晶显示屏,其特征在于,所述取向膜堆积于所述框胶之前,取向膜末端厚度大于取向膜显示区域端厚度。
6.一种液晶显示屏的制程,其特征在于,其液晶滴下的步骤包括:
涂布框胶于第一基板;
涂布取向膜于第一基板;
其中所述框胶在第一基板的四周形成一层阻挡结构;
涂布框胶于第二基板;
涂布取向膜于第二基板;
其中所述在第二基板四周,临近框胶区域的色阻为一层阻挡结构。
7.如权利要求6所述的液晶显示屏的制程,其特征在于,所述框胶的材料为非热固化型,或者所述框胶的固化温度比所述取向膜的固化温度更高。
8.一种液晶显示屏的制程,其特征在于,其液晶滴下的步骤包括:
涂布框胶于第一基板;
涂布取向膜于第一基板;
其中所述在第一基板四周,临近框胶区域的色阻为一层阻挡结构;
涂框胶于第二基板;
涂布取向膜于第二基板;
其中所述框胶在第二基板的四周形成一层阻挡结构。
9.如权利要求8所述的液晶显示屏的制程,其特征在于,所述框胶的材料为非热固化型,或者所述框胶的固化温度比所述取向膜的固化温度更高。
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