CN105045006A - 一种液晶显示面板 - Google Patents
一种液晶显示面板 Download PDFInfo
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Abstract
本发明公开了一种液晶显示面板包括:彩膜基板,以及相对设置的阵列基板;所述阵列基板包括:玻璃基板;器件层,设置于所述玻璃基板的上方,所述器件层内设有薄膜晶体管;在所述器件层的同侧设置有两层紫外防护层,第一层紫外防护层靠近UV光源,第二层紫外防护层远离UV光源;所述第一层紫外防护层对UV光的折射率大于所述第二层紫外防护层。本发明在不增加任何工艺和成本的前提下,改善成膜条件得到高密的二氧化硅薄膜,利用全反射特性,避免UV照射的影响,可减少一道UV?mask,保证器件特性不受影响。
Description
【技术领域】
本发明涉及显示技术领域,特别涉及一种液晶显示面板。
【背景技术】
TFT-LCD液晶显示屏是薄膜晶体管型液晶显示屏,TFT(ThinFilmTransistor,薄膜晶体管)液晶为每个像素都设有一个半导体开关,每个像素都可以通过点脉冲直接控制,利用液晶作为光阀控制光源形成显示,每个像素上都设有一个半导体开关,在LTPS(LowTemperaturePoly-silicon,低温多晶硅技术)工艺中,半导体器件由低温多晶硅作为通道层,通过金属扫描线和信号线实现开关特性,而LTPS产品在高解析度和窄边框的条件下,为使框胶固化更充分,在边框开口率上逐步降低到接近20%甚至更小,对应框胶固化需求的能量和照度也需要大幅度加大。高能量及高照度的UV对成盒panel内液晶的键结断裂,影响液晶屏的Imagesticking表现。并且在现行LTPS配向技术上,已由传统的摩擦配向方式逐步转为光配向技术,与传统的摩擦配向方式相比,光配向技术主要采用高能量和高照度的UV光照射TFT-LCDArray侧以及CF侧,配向膜经过UV照射后,形成配向力,提供液晶的初始配向能力,形成Pre-tiltangle。高能量的UV波段对LTPSTFT半导体器件会造成不可恢复的损伤,经UV照射后,器件特性会发生漂移,造成半导体开关器件失效,造成阈值电压偏移和Ion/Ioff异常。
故,有必要提出一种新的技术方案,以解决上述技术问题。
【发明内容】
本发明的目的在于提供一种液晶显示面板,其能在不增加任何工艺和成本的前提下,改善成膜条件得到高密的二氧化硅薄膜,利用全反射特性,避免UV照射的影响,可减少一道UVmask,保证器件特性不受影响。
为解决上述问题,本发明的技术方案如下:
一种液晶显示面板,所述液晶显示面板包括:彩膜基板,以及相对设置的阵列基板;其中,
所述阵列基板包括:
玻璃基板;
器件层,设置于所述玻璃基板的上方,所述器件层内设有薄膜晶体管;
在所述器件层的同侧设置有两层紫外防护层,第一层紫外防护层靠近UV光源,第二层紫外防护层远离UV光源;所述第一层紫外防护层对UV光的折射率大于所述第二层紫外防护层。
优选的,在所述的液晶显示面板中,所述阵列基板还包括用于使液晶分子按特定方向排列的配向膜层,所述配向膜层位于所述阵列基板上靠近所述彩膜基板的表面;
在对所述配向膜层进行光配向处理时,所述第一层紫外防护层和所述第二层紫外防护层均位于所述器件层与所述配向膜层之间。
优选的,在所述的液晶显示面板中,所述阵列基板还包括用于使液晶分子按特定方向排列的配向膜层,所述配向膜层位于所述阵列基板上靠近所述彩膜基板的表面;
在对配向膜层进行光配向处理时,所述第一层紫外防护层为所述配向膜层,所述第二层紫外防护层位于所述器件层与所述配向膜层之间。
优选的,在所述的液晶显示面板中,所述阵列基板还包括:
绝缘层,位于所述配向膜层与所述器件层之间,且至少部分区域与所述配向膜层邻接;
像素电极层,位于所述配向膜层与所述绝缘层之间;
所述第二层紫外防护层为所述绝缘层。
优选的,在所述的液晶显示面板中,所述液晶显示面板还包括用于对接固定所述阵列基板与所述彩膜基板的框胶;
在对所述框胶进行光固化处理时,所述UV光源从所述阵列基板的玻璃基板侧入射,所述第一层紫外防护层和所述第二层紫外防护层均位于所述器件层与所述玻璃基板之间。
优选的,在所述的液晶显示面板中,所述阵列基板还包括缓冲层,所述缓冲层位于所述玻璃基板与所述器件层之间;
所述缓冲层为多层结构,包括所述第一层紫外防护层和所述第二层紫外防护层。
优选的,在所述的液晶显示面板中,所述缓冲层包括第一氮化硅层、氧化硅层、以及第二氮化硅层;所述第一氮化硅层或所述第二氮化硅层中的任一靠近玻璃基板的一层是第一层紫外防护层,而与之相比远离玻璃基板的是第二层紫外防护层。
优选的,在所述的液晶显示面板中,所述器件层与所述玻璃基板之间还设置有多个光遮挡片,每一所述光遮挡片与一所述薄膜晶体管正对设置并完全覆盖该薄膜晶体管。
优选的,在所述的液晶显示面板中,所述阵列基板还包括:
配向膜层,用于使液晶分子按特定方向排列的,所述配向膜层位于所述阵列基板上靠近所述彩膜基板的表面;
绝缘层,位于所述配向膜层与所述器件层之间,且至少部分区域与所述配向膜层邻接,所述配向膜层对UV光的折射率大于所述绝缘层;
所述器件层与所述玻璃基板之间还设置有所述第一层紫外防护层和所述第二层紫外防护层。
优选的,在所述的液晶显示面板中,所述阵列基板还包括:
缓冲层,位于所述玻璃基板与所述器件层之间;
所述缓冲层为多层结构,并包括所述第一层紫外防护层和所述第二层紫外防护层。
相对现有技术,本发明通过在器件层的同侧设置有两层紫外防护层,第一层紫外防护层靠近UV光源,为光密介质;第二层紫外防护层远离UV光源,为光疏介质;所述第一层紫外防护层对UV光的折射率大于所述第二层紫外防护层。当所述UV光源从所述第一层紫外防护层照射至所述第二层紫外防护层时,在所述位置处发生全反射,以保护所述器件层。以使本发明在不增加任何工艺和成本的前提下,改善成膜条件得到高密的二氧化硅薄膜,利用全反射特性,避免UV照射的影响,可减少一道UVmask,保证器件特性不受影响。
为让本发明的上述内容能更明显易懂,下文特举优选实施例,并配合所附图式,作详细说明如下。
【附图说明】
图1为本发明实施例一提供的液晶显示面板的结构示意图;
图2是本发明实施例提供的器件层的结构示意图;
图3为本发明实施例二提供的液晶显示面板的结构示意图。
图4为本发明实施例提供的缓冲层的结构示意图。
【具体实施方式】
本说明书所使用的词语“实施例”意指用作实例、示例或例证。此外,本说明书和所附权利要求中所使用的冠词“一”一般地可以被解释为意指“一个或多个”,除非另外指定或从上下文清楚导向单数形式。
本发明的显示面板可以是诸如TFT-LCD(ThinFilmTransistorLiquidCrystalDisplay,薄膜晶体管液晶显示面板)、AMOLED(ActiveMatrixOrganicLightEmittingDiode,有源矩阵有机发光二极管面板)等显示面板。
在本发明实施例中,通过在器件层的同侧设置有两层紫外防护层,第一层紫外防护层靠近UV光源,为光密介质;第二层紫外防护层远离UV光源,为光疏介质;所述第一层紫外防护层对UV光的折射率大于所述第二层紫外防护层。当所述UV光源从所述第一层紫外防护层照射至所述第二层紫外防护层时,在所述位置处发生全反射,以保护所述器件层。以使本发明在不增加任何工艺和成本的前提下,改善成膜条件得到高密的二氧化硅薄膜,利用全反射特性,避免UV照射的影响,可减少一道UVmask,保证器件特性不受影响。
本发明提供了一种液晶显示面板,所述液晶显示面板包括:彩膜基板,以及相对设置的阵列基板;其中,所述阵列基板包括:玻璃基板;器件层,设置于所述玻璃基板的上方,所述器件层内设有薄膜晶体管;在所述器件层的同侧设置有两层紫外防护层,第一层紫外防护层靠近UV光源,第二层紫外防护层远离UV光源;所述第一层紫外防护层对UV光的折射率大于所述第二层紫外防护层。
为了说明本发明所述的技术方案,下面通过具体实施例来进行说明。
实施例一
请参阅图1,为本发明实施例一提供的液晶显示面板的结构示意图。为了便于说明,仅示出了与本发明实施例相关的部分。所述液晶显示面板包括:彩膜基板,以及相对设置的阵列基板。
所述阵列基板包括:玻璃基板100、器件层200、平坦层300、绝缘层400、像素电极层500、以及配向膜层600。其中,所述器件层200设置于所述玻璃基板100上方;所述平坦层300设置于所述器件层200上方;绝缘层400设置于所述平坦层300上方,且至少部分区域与所述配向膜层邻接;所述像素电极层500设置于绝缘层400上方;配向膜层600设置于所述像素电极层500上方。其中,配向膜层600用于使液晶分子按特定方向排列,所述配向膜层600位于所述阵列基板上靠近所述彩膜基板的表面。
然而,可以理解的是,所述平坦层300可有可无,设有平坦层300的话,那么可以使器件层平坦化。
作为本发明一实施例,在对所述配向膜层进行光配向处理时,所述第一层紫外防护层和所述第二层紫外防护层均位于所述器件层与所述配向膜层之间。然而,可以理解的是,在对配向膜层进行光配向处理时,所述第一层紫外防护层可为所述配向膜层,所述第二层紫外防护层位于所述器件层与所述配向膜层之间。
具体的,绝缘层400为氮化硅,配向膜层600使用传统配向膜材料,只是在制造时通过分别调整绝缘层400和配向膜层600的成膜条件,使配向膜层600的折射率明显大于绝缘层400。将折射率相对大的配向膜层600作为第一层紫外防护层,将折射率小的绝缘层400作为第二层紫外防护层。在本实施例的光配向制程中,UV光源位于阵列基板的靠近配向膜层600的一侧,所述UV光源从光密的配向膜层600照射至光疏的绝缘层400。当光从光密介质向光疏介质折射时,折射角总大于入射角,而与90°的折射角相对应的入射角被称为临界角;当入射角大于临界角时,光线会因为不能进入分界面的另一侧(即光疏介质所在侧)而发生全反射。
同理,调整UV光的入射方向,利用本实施例中作为光密介质的配向膜层600和作为光疏介质的绝缘层400,使UV光在配向膜层600和绝缘层400的分界面处发生全反射,从而避免UV光继续深入阵列基板以保护器件层200。
在本实施例中,直接利用阵列基板中的位于器件层同侧的配向膜层600和绝缘层400分别作为第一层紫外防护层和第二层紫外防护层,通过改变成膜条件来调节其折射率的大小,使配向膜层600成为折射率更大的光密介质,使绝缘层400成为折射率小于配向膜层600的光疏介质。因此,本实施例中的第一层紫外防护层和第二层紫外防护层并没有增加现有技术中阵列基板的层数和制程,即可在光配向制程中为TFT器件层提供更好的保护,显著提升良率。
请参阅图2,为本发明实施例提供的器件层的结构示意图;为了便于说明,仅示出了与本发明实施例相关的部分。
所述器件层200包括:栅极201、隔离层202、源极和漏极203、栅极绝缘层901及通道层(标N+那一层)。其中,源极和漏极203穿过隔离层202上的过孔分别与通道层的两端相连,隔离层202采用电性绝缘的氮化硅等材料制成,使栅极201与源漏极203电性绝缘。栅极201与扫描线相连,源极或漏极203与数据线相连。
实施例二
请参阅图3,为本发明实施例二提供的液晶显示面板的结构示意图。为了便于说明,仅示出了与本发明实施例相关的部分。所述液晶显示面板包括:彩膜基板、相对设置的阵列基板、以及用于对接固定所述阵列基板与所述彩膜基板的框胶。
其中,所述阵列基板包括:玻璃基板100、缓冲层700、以及器件层200。其中,所述缓冲层700位于所述玻璃基板100与所述器件层200之间。所述器件层200内设有薄膜晶体管。
在本发明实施例中,所述缓冲层700为多层结构,包括所述第一层紫外防护层和所述第二层紫外防护层。第一层紫外防护层靠近UV光源,第二层紫外防护层远离UV光源;所述第一层紫外防护层对UV光的折射率大于所述第二层紫外防护层。
请参阅图4,在本发明实施例中,所述缓冲层包括第一氮化硅层701、氧化硅层702、以及第二氮化硅层703;所述第一氮化硅层或所述第二氮化硅层中的任一靠近玻璃基板的一层是第一层紫外防护层,而与之相比远离玻璃基板的是第二层紫外防护层。
在本发明实施例中,通过分别调整第一氮化硅层701和氧化硅层702的成膜条件,使第一氮化硅层701的折射率明显大于氧化硅层702。将折射率相对大的第一氮化硅层701作为第一层紫外防护层,将折射率小的氧化硅层702作为第二层紫外防护层。
作为本发明一优选实施例,所述器件层与所述玻璃基板之间还设置有多个光遮挡片900,每一所述光遮挡片与一所述薄膜晶体管正对设置并完全覆盖该薄膜晶体管。所述光遮挡片900设置于所述玻璃基板100上,用于避免光对器件层200的影响。
在本发明实施例中,在对所述框胶进行光固化处理时,所述UV光源从所述阵列基板的玻璃基板侧入射,光遮挡片会阻挡直射UV光,以防止UV光射入器件层,避免光对器件层200的影响;然而还会存在有斜射的UV光,因此,本发明实施例中由于设置有缓冲层,所述缓冲层包括所述第一层紫外防护层和所述第二层紫外防护层,因此斜射的UV光在第一层紫外防护层和所述第二层紫外防护层的分界面处发生全反射,从而避免UV光继续深入阵列基板以保护器件层200。
实施例三
请一并参阅图2及图3,为本发明实施例三提供的液晶显示面板的结构示意图。为了便于说明,仅示出了与本发明实施例相关的部分。所述液晶显示面板包括:彩膜基板、相对设置的阵列基板、以及用于对接固定所述阵列基板与所述彩膜基板的框胶。
所述阵列基板包括:玻璃基板100、光遮挡片900、缓冲层700、器件层200、平坦层300、绝缘层400、像素电极层500、以及配向膜层600。所述光遮挡片900设置于所述玻璃基板100上,用于避免光对器件层200的影响;缓冲层700设置于所述光遮挡片900上方,器件层200设置于缓冲层700上方,所述平坦层300设置于所述器件层200上方;绝缘层400设置于所述平坦层300上方,且至少部分区域与所述配向膜层邻接;所述像素电极层500设置于绝缘层400上方;配向膜层600设置于所述像素电极层500上方。其中,配向膜层600用于使液晶分子按特定方向排列,所述配向膜层600位于所述阵列基板上靠近所述彩膜基板的表面。
在本实施例的光配向制程中,UV光源位于阵列基板的靠近配向膜层600的一侧,所述UV光源从光密的配向膜层600照射至光疏的绝缘层400。当光从光密介质向光疏介质折射时,折射角总大于入射角,而与90°的折射角相对应的入射角被称为临界角;当入射角大于临界角时,光线会因为不能进入分界面的另一侧(即光疏介质所在侧)而发生全反射。
同理,调整UV光的入射方向,利用本实施例中作为光密介质的配向膜层600和作为光疏介质的绝缘层400,使UV光在配向膜层600和绝缘层400的分界面处发生全反射,从而避免UV光继续深入阵列基板以保护器件层200。
在本发明实施例中,通过胶框使阵列基板和彩膜基板对位贴合形成液晶面板盒,并采用UV光源照射所述液晶面板盒使胶框固化,从而确保所述阵列基板和所述彩膜基板可靠连接并具有良好的密封性能。
在对所述框胶进行光固化处理时,所述UV光源从所述阵列基板的玻璃基板侧入射,光遮挡片会阻挡直射UV光,以防止UV光射入器件层,避免光对器件层200的影响;然而还会存在有斜射的UV光,因此,本发明实施例中由于设置有缓冲层,所述缓冲层包括所述第一层紫外防护层和所述第二层紫外防护层,因此斜射的UV光在第一层紫外防护层和所述第二层紫外防护层的分界面处发生全反射,从而避免UV光继续深入阵列基板以保护器件层200。
综上所述,本发明通过在器件层的同侧设置有两层紫外防护层,第一层紫外防护层靠近UV光源,为光密介质;第二层紫外防护层远离UV光源,为光疏介质;所述第一层紫外防护层对UV光的折射率大于所述第二层紫外防护层。当所述UV光源从所述第一层紫外防护层照射至所述第二层紫外防护层时,在所述位置处发生全反射,以保护所述器件层。以使本发明在不增加任何工艺和成本的前提下,改善成膜条件得到高密的二氧化硅薄膜,利用全反射特性,避免UV照射的影响,可减少一道UVmask,保证器件特性不受影响。
尽管已经相对于一个或多个实现方式示出并描述了本发明,但是本领域技术人员基于对本说明书和附图的阅读和理解将会想到等价变型和修改。本发明包括所有这样的修改和变型,并且仅由所附权利要求的范围限制。特别地关于由上述组件执行的各种功能,用于描述这样的组件的术语旨在对应于执行所述组件的指定功能(例如其在功能上是等价的)的任意组件(除非另外指示),即使在结构上与执行本文所示的本说明书的示范性实现方式中的功能的公开结构不等同。此外,尽管本说明书的特定特征已经相对于若干实现方式中的仅一个被公开,但是这种特征可以与如可以对给定或特定应用而言是期望和有利的其他实现方式的一个或多个其他特征组合。而且,就术语“包括”、“具有”、“含有”或其变形被用在具体实施方式或权利要求中而言,这样的术语旨在以与术语“包含”相似的方式包括。
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 (10)
1.一种液晶显示面板,其特征在于,所述液晶显示面板包括:彩膜基板,以及相对设置的阵列基板;其中,
所述阵列基板包括:
玻璃基板;
器件层,设置于所述玻璃基板的上方,所述器件层内设有薄膜晶体管;
在所述器件层的同侧设置有两层紫外防护层,第一层紫外防护层靠近UV光源,第二层紫外防护层远离UV光源;所述第一层紫外防护层对UV光的折射率大于所述第二层紫外防护层。
2.根据权利要求1所述的液晶显示面板,其特征在于,所述阵列基板还包括用于使液晶分子按特定方向排列的配向膜层,所述配向膜层位于所述阵列基板上靠近所述彩膜基板的表面;
在对所述配向膜层进行光配向处理时,所述第一层紫外防护层和所述第二层紫外防护层均位于所述器件层与所述配向膜层之间。
3.根据权利要求1所述的液晶显示面板,其特征在于,所述阵列基板还包括用于使液晶分子按特定方向排列的配向膜层,所述配向膜层位于所述阵列基板上靠近所述彩膜基板的表面;
在对配向膜层进行光配向处理时,所述第一层紫外防护层为所述配向膜层,所述第二层紫外防护层位于所述器件层与所述配向膜层之间。
4.根据权利要求3所述的液晶显示面板,其特征在于,所述阵列基板还包括:
绝缘层,位于所述配向膜层与所述器件层之间,且至少部分区域与所述配向膜层邻接;
像素电极层,位于所述配向膜层与所述绝缘层之间;
所述第二层紫外防护层为所述绝缘层。
5.根据权利要求1所述的液晶显示面板,其特征在于,所述液晶显示面板还包括用于对接固定所述阵列基板与所述彩膜基板的框胶;
在对所述框胶进行光固化处理时,所述UV光源从所述阵列基板的玻璃基板侧入射,所述第一层紫外防护层和所述第二层紫外防护层均位于所述器件层与所述玻璃基板之间。
6.根据权利要求5所述的液晶显示面板,其特征在于,所述阵列基板还包括缓冲层,所述缓冲层位于所述玻璃基板与所述器件层之间;
所述缓冲层为多层结构,包括所述第一层紫外防护层和所述第二层紫外防护层。
7.根据权利要求6所述的液晶显示面板,其特征在于,所述缓冲层包括第一氮化硅层、氧化硅层、以及第二氮化硅层;所述第一氮化硅层或所述第二氮化硅层中的任一靠近玻璃基板的一层是第一层紫外防护层,而与之相比远离玻璃基板的是第二层紫外防护层。
8.根据权利要求1所述的液晶显示面板,其特征在于,所述器件层与所述玻璃基板之间还设置有多个光遮挡片,每一所述光遮挡片与一所述薄膜晶体管正对设置并完全覆盖该薄膜晶体管。
9.根据权利要求1所述的液晶显示面板,其特征在于,所述阵列基板还包括:
配向膜层,用于使液晶分子按特定方向排列的,所述配向膜层位于所述阵列基板上靠近所述彩膜基板的表面;
绝缘层,位于所述配向膜层与所述器件层之间,且至少部分区域与所述配向膜层邻接,所述配向膜层对UV光的折射率大于所述绝缘层;
所述器件层与所述玻璃基板之间还设置有所述第一层紫外防护层和所述第二层紫外防护层。
10.根据权利要求9所述的液晶显示面板,其特征在于,所述阵列基板还包括:
缓冲层,位于所述玻璃基板与所述器件层之间;
所述缓冲层为多层结构,并包括所述第一层紫外防护层和所述第二层紫外防护层。
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CN114527588A (zh) * | 2022-02-28 | 2022-05-24 | 武汉华星光电技术有限公司 | 聚合物液晶调光盒、显示模组及电子设备 |
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