CN110794620A - 一种液晶面板及其制作方法、应用 - Google Patents

一种液晶面板及其制作方法、应用 Download PDF

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CN110794620A
CN110794620A CN201810865928.4A CN201810865928A CN110794620A CN 110794620 A CN110794620 A CN 110794620A CN 201810865928 A CN201810865928 A CN 201810865928A CN 110794620 A CN110794620 A CN 110794620A
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历志辉
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Shenzhen TCL New Technology Co Ltd
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Abstract

本发明公开一种液晶面板及其制作方法、应用,其中,所述液晶面板包括第一玻璃基板、第二玻璃基板、液晶层及框胶,所述框胶设置在液晶层外周并用于将第一玻璃基板与第二玻璃基板密封成盒,所述液晶层封装在成盒后的第一玻璃基板与第二玻璃基板之间,环绕所述第一玻璃基板的边缘设置有一圈向第二玻璃基板凸出的压体,所述第二玻璃基板上设置有收容所述压体的槽体,所述槽体与压体之间的间隙内填充有封屏胶,所述封屏胶与框胶同时制备形成。本发明解决了现有技术中液晶面板液晶容易漏出的问题。

Description

一种液晶面板及其制作方法、应用
技术领域
本发明涉及液晶显示技术领域,尤其涉及一种液晶面板及其制作方法、应用。
背景技术
TFT-LCD 是目前应用最为广泛的显示面板,技术成熟且成本较低。但在实际使用中,经常出现漏液的问题。简单来说,液晶面板是两片玻璃中间夹着液晶,两片玻璃中间以框胶来粘合在一起,框胶也就起到固定成盒及防止液晶漏液的作用。但是框胶本身具有一定的透湿率,而且目前液晶面板的非显示区域越来越小造成框胶的幅宽也越来越窄,导致液晶面板在实际使用中经常出现水汽腐蚀框胶、液晶漏出的情况。
目前应对漏液的方式是成盒制程之后再增加一道封胶制程,即在玻璃外缘增加一道封屏胶,降低水汽侵蚀框胶造成漏液的风险(如图1所示)。这种方式额外增加一道封胶制程,降低生产效率,在液晶面板运输,组装整机等过程中经常发生封屏胶碰撞脱落等问题。
因此,现有技术还有待于改进和发展。
发明内容
鉴于上述现有技术的不足,本发明的目的在于提供一种液晶面板及其制作方法、应用,旨在解决现有技术中液晶面板液晶容易漏出的问题。
本发明的技术方案如下:
一种液晶面板,其中,包括第一玻璃基板、第二玻璃基板、液晶层及框胶,所述框胶设置在液晶层外周并用于将第一玻璃基板与第二玻璃基板密封成盒,所述液晶层封装在成盒后的第一玻璃基板与第二玻璃基板之间,环绕所述第一玻璃基板的边缘设置有一圈向第二玻璃基板凸出的压体,所述第二玻璃基板上设置有收容所述压体的槽体,所述槽体与压体之间的间隙内填充有封屏胶,所述封屏胶与框胶同时制备形成。
所述的液晶面板,其中,所述槽体由两个闭环状凸起套设形成,并且外侧闭环状凸起的高度小于内侧闭环状凸起的高度,使得多余的封屏胶向槽体外侧溢出。
所述的液晶面板,其中,所述压体的端部还设置有若干开口。
所述的液晶面板,其中,所述压体在收容入槽体时靠近槽体内侧。
所述的液晶面板,其中,所述框胶中掺杂有起支撑作用的硅球,且硅球的高度大于或等于所述槽体的高度。
所述的液晶面板,其中,所述压体由黑色矩阵、彩色光阻、间隙物光阻、金属层、绝缘层中一层或者几层堆叠制成,所述槽体由黑色矩阵、彩色光阻、间隙物光阻、金属层、绝缘层中一层或者几层堆叠制成。
一种如上所述的液晶面板的制作方法,其中,包括步骤:
在第二玻璃基板上制作封装液晶的框胶,同时将封屏胶喷涂于所述槽体内;
将液晶封装在框胶限定的区域内,然后将第一玻璃基板压合在第二玻璃基板上,使得压体插入框胶内、槽体内多余的封屏胶溢出,再固化,即得所述液晶面板。
所述的液晶面板的制作方法,其中,所述封屏胶的喷涂量=槽体内体积-压体的体积+封屏胶所需溢出量。
一种如上所述的液晶面板的的应用,其中,将所述液晶面板应用于手机、电脑、平板或电视中。
有益效果:本发明所提供的液晶面板,通过环绕液晶面板两侧的玻璃基板的边缘分别设置压体与槽体,槽体收容所述压体,且所述槽体与压体之间的间隙内填充有封屏胶,这样不仅通过封屏胶将框胶封装起来,防止其背水汽腐蚀,避免漏液问题,同时因为压体与槽体的设置,封屏胶能够牢牢嵌合在液晶面板两侧的玻璃基板的边缘与框胶之间,而不会轻易被碰撞脱落,也避免了由此带来的框胶被水汽腐蚀导致液晶漏出的问题,便于组装及运输,解决了现有技术中液晶面板液晶容易漏出的问题。
附图说明
图1为传统的封胶制程制作的液晶面板的结构示意图。
图2为本发明所述液晶面板的较佳实施例结构示意图。
图3为本发明所述液晶面板的第一玻璃基板一侧的结构示意图。
图4为本发明所述液晶面板的第二玻璃基板一侧的结构示意图。
图5为本发明所述液晶面板的制作过程示意图。
具体实施方式
本发明提供一种液晶面板及其制作方法、应用,为使本发明的目的、技术方案及效果更加清楚、明确,以下对本发明进一步详细说明。应当理解,此处所描述的具体实施例仅仅用以解释本发明,并不用于限定本发明。
本发明所提供的一种液晶面板,如图2~4所示,包括第一玻璃基板10、第二玻璃基板20、液晶层30及框胶40,所述框胶40设置在第一玻璃基板10与第二玻璃基板20靠近边缘处,用以将两玻璃基板10、20以及两玻璃基板10、20之间的液晶层30密封成盒,环绕所述第一玻璃基板10的边缘(框胶40的外侧)设置有一圈向第二玻璃基板凸出的压体50,所述第二玻璃基板20上设置有收容所述压体50的槽体60,也即所述槽体60环绕所述第二基板20的边缘设置并与所述压体50相对应,所述槽体60与压体50之间的间隙内填充有封屏胶70,所述封屏胶70与框胶40同时制备形成。
显然,为了实现液晶显示功能,在第一玻璃基板10、液晶层30及第二玻璃基板20之间还包括彩色滤光片、配向层等其他功能层,以及设置在第一玻璃基板10及第二玻璃基板20外侧的偏光板等。
本发明中,通过框胶40将液晶层30与第一玻璃基板10及第二玻璃基板20固定成盒,框胶40形成了防止液晶漏液的内部屏障;而封屏胶70填充在位于槽体60与压体50之间的间隙内,而槽体60及压体50又分别设置在两张玻璃基板的边缘与框胶40之间,也即通过槽体60、压体50及封屏胶70的组合作用将框胶40封装在两张玻璃基板内,对框胶40进行密封保护,防止其被水汽腐蚀,形成了防止液晶漏液的外部屏障;另外,因为压体50被槽体60收容,而封屏胶70填充在二者之间的间隙内,这样压体50与槽体60的存在可形成对封屏胶70的卡合作用,将封屏胶70牢牢固定住,而不会被轻易脱落下来,能够有效解决现有技术中,简单在玻璃外缘增加一道封屏胶导致其在液晶面板运输,组装整机等过程中经常发生封屏胶碰撞脱落等的问题。另外,本发明中所述封屏胶70与框胶40同时制备形成,而框胶40是现有液晶面板制作时既有工序,因而本发明设计不会增加封屏胶70的制作工序。
所述的液晶面板中,框胶40是围绕液晶层30设置在两张玻璃基板之间的,为了充分实现对框胶40的密封保护,本发明中所述压体50也环绕所述第一玻璃基板10的边缘设置,即设置在第一玻璃基板10的边缘与框胶40外周之间(如图3所示),整体呈一闭合状结构。
所述槽体60由两个整个呈闭环状的凸起一内一外套设形成,两个闭环状的凸起之间留有间隙,所述间隙即为收容所述压体50的空间,使得所述槽体60整体呈一不间断的环形结构(如图4所示),即所述槽体60包括内侧闭环状凸起及套设在内侧闭环状凸起外侧的外侧闭环状凸起,并且外侧闭环状凸起的高度小于内侧闭环状凸起的高度,即设置槽体60靠近第二玻璃基板20边缘的一侧高度小于靠近框胶40的一侧高度,这样两张玻璃基板对组完成后会在槽体60外侧与第一玻璃基板10之间留出封屏胶挤压口,将预先填充在槽体60内的多余封屏胶优先向外侧流出而不会向内侧溢出,防止污染内部液晶显示区域。优选地,所述槽体60由两个形状一样而大小不一的闭环状凸起经一内一外套设形成。
优选地,所述压体50的端部还设置有若干开口,所述开口横向设置在压体50的底部,即沿槽体60内侧朝外侧的方向,这样的开口设置便于压体内侧的封屏胶70通过压体50上的开口向外侧流动。
优选地,在所述的液晶面板中,所述压体50在收容入槽体60时靠近槽体60内侧,以减少封屏胶向内侧溢出量,防止封屏胶向槽体60内侧溢出过多污染内部液晶显示区域,同时又不影响封屏胶70的封装及固定效果。
更优选地,所述的液晶面板中,所述框胶40中掺杂有起支撑作用的硅球,且硅球的高度大于或等于所述槽体60的高度。虽然框胶40的作用是将两张玻璃基板粘合在一起并对内部液晶进行封装,但是因为必须留有液晶空间,因而需要保证第一玻璃基板10与第二玻璃基板20之间具有一定的间隙,因此需要在框胶40中掺杂其支撑作用的硅球,防止第一玻璃基板10与第二玻璃基板20过近贴合影响液晶层结构;而设置硅球的高度大于或等于槽体的高度,首先能够硅球起到其固有的支撑作用,可保证两张玻璃基板之间间隙均匀,最终TFT-LCD 不会出现显示不良;另外,因为要实现槽体60对压体50的收容作用,槽体60的高度应大于或等于压体50的高度。
所述的液晶面板的压体50和槽体60的制作无需增加额外的材料与额外的制成,所述压体50可由由黑色矩阵、彩色光阻、间隙物光阻、金属层、绝缘层中一层或者几层堆叠制成,所述槽体60同样可以由黑色矩阵、彩色光阻、间隙物光阻、金属层、绝缘层中一层或者几层堆叠制成。
本发明还提供了一种如上所述的液晶面板的制作方法,其中,包括步骤:
S1、在第二玻璃基板上制作封装液晶的框胶,同时将封屏胶喷涂于所述槽体内;
S2、将液晶封装在框胶限定的区域内,然后将第一玻璃基板压合在第二玻璃基板上,使得压体插入框胶内、槽体内多余的封屏胶溢出,再固化,即得所述液晶面板。
所述步骤S1中,所述封屏胶的喷涂量为槽体内体积减去压体的体积,再加上封屏胶所需溢出量,即所述封屏胶的喷涂量=槽体内体积-压体的体积+封屏胶所需溢出量,以实现通过封屏胶封装框胶边缘的同时,保证封屏胶不会溢出到液晶面板之外。
所述步骤S2中,通过将第一玻璃基板压合在第二玻璃基板上,使得压体插入框胶内,即实现将压体收容入槽体中,从而在框胶作用及压体与槽体的收容作用下将第一玻璃基板定位固定在第二玻璃基板上,槽体内多余的封屏胶溢出,再固化,所述固化过程包括热固化及紫外光固化,以将框胶及封屏胶均固化住。
现有的应对漏液的液晶面板封屏制造过程包括框架涂布、组立对位、热固化、一次紫外光固化、封屏胶涂布和二次紫外光固化。而本发明中,因为槽体及压体均是预先设置好的,在两张玻璃基板制造完成后进行成盒工序,封屏胶涂布于槽体内,如图5所示,框胶与封屏胶可以使用两个喷嘴同时同步,可以减少制造时间,提升制作效率。在压体插入槽体内时,压体会将封屏胶从槽体中挤出,因外侧槽体低于内侧,封屏胶会沿着外侧槽体流动,最终形成的效果如图2所示,对组之后再进行热固化与紫外光固化,因为框胶本身制造既需要照射紫外光,所以在此处可以实现不增加工序既可同步完成封屏胶固化工序,而且与现有的液晶面板封屏制造过程相比,省去了一个单独为封屏胶进行紫外光固化的工序。
本发明不需增加新材料、新工艺既可以实现封屏胶的涂布于固化,而且简化了原有工序,同时槽体设计也增加了防护水汽侵入的能力,增强了液晶面板的可靠度。
本发明还提供了一种如上所述的液晶面板的的应用,其中,将所述液晶面板应用于手机、电脑、平板或电视中。
综上所述,本发明所提供的液晶面板,通过在框胶与液晶面板两侧的玻璃基板的边缘之间分别设置压体与槽体,槽体收容所述压体,且所述槽体与压体之间的间隙内填充有封屏胶,这样不仅通过封屏胶将框胶封装起来,防止其背水汽腐蚀,避免漏液问题,同时因为压体与槽体的设置,封屏胶能够牢牢嵌合在液晶面板两侧的玻璃基板的边缘与框胶之间,而不会轻易被碰撞脱落,也避免了由此带来的框胶被水汽腐蚀导致液晶漏出的问题,便于组装及运输,解决了现有技术中液晶面板容易出现液晶漏出的问题。
应当理解的是,本发明的应用不限于上述的举例,对本领域普通技术人员来说,可以根据上述说明加以改进或变换,所有这些改进和变换都应属于本发明所附权利要求的保护范围。

Claims (9)

1.一种液晶面板,其特征在于,包括第一玻璃基板、第二玻璃基板、设于所述第一玻璃基板与第二玻璃基板之间的液晶层及用以将所述第一玻璃基板与第二玻璃基板密封成盒的框胶,环绕所述第一玻璃基板的边缘设置有一圈向第二玻璃基板凸出的压体,所述第二玻璃基板上设置有收容所述压体的槽体,所述槽体与压体之间的间隙内填充有封屏胶,所述封屏胶与框胶同时制备形成。
2.根据权利要求1所述的液晶面板,其特征在于,所述槽体由两个闭环状凸起套设形成,并且外侧闭环状凸起的高度小于内侧闭环状凸起的高度,使得多余的封屏胶向槽体外侧溢出。
3.根据权利要求1所述的液晶面板,其特征在于,所述压体的端部还设置有若干开口。
4.根据权利要求2所述的液晶面板,其特征在于,所述压体在收容入槽体时靠近槽体内侧。
5.根据权利要求1所述的液晶面板,其特征在于,所述框胶中掺杂有起支撑作用的硅球,且硅球的高度大于或等于所述槽体的高度。
6.根据权利要求3所述的液晶面板,其特征在于,所述压体由黑色矩阵、彩色光阻、间隙物光阻、金属层、绝缘层中一层或者几层堆叠制成,所述槽体由黑色矩阵、彩色光阻、间隙物光阻、金属层、绝缘层中一层或者几层堆叠制成。
7.一种如权利要求1~6任一所述的液晶面板的制作方法,其特征在于,包括步骤:
在第二玻璃基板上制作封装液晶的框胶,同时将封屏胶喷涂于所述槽体内;
将液晶封装在框胶限定的区域内,然后将第一玻璃基板压合在第二玻璃基板上,使得压体插入所述槽体内、槽体内多余的封屏胶溢出,固化,即得所述液晶面板。
8.根据权利要求7所述的液晶面板的制作方法,其特征在于,所述封屏胶的喷涂量=槽体内体积-压体的体积+封屏胶所需溢出量。
9.一种如权利要求1~6任一所述的液晶面板的的应用,其特征在于,将所述液晶面板应用于手机、电脑、平板或电视中。
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