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CN103676300A - 彩色滤光基板及液晶显示面板 - Google Patents

彩色滤光基板及液晶显示面板 Download PDF

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CN103676300A
CN103676300A CN201310733571.1A CN201310733571A CN103676300A CN 103676300 A CN103676300 A CN 103676300A CN 201310733571 A CN201310733571 A CN 201310733571A CN 103676300 A CN103676300 A CN 103676300A
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transparency carrier
black matrix
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optical filtering
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韩丙
廖作敏
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TCL China Star Optoelectronics Technology Co Ltd
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Shenzhen China Star Optoelectronics Technology Co Ltd
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Priority to PCT/CN2014/071158 priority patent/WO2015096257A1/zh
Priority to US14/347,611 priority patent/US20150185550A1/en
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Abstract

本发明提供一种彩色滤光基板及液晶显示面板，所述彩色滤光基板包括：一第一透明基板（12）、形成于该第一透明基板（12）上的黑色矩阵（14）、形成于该第一透明基板（12）上并对应黑色矩阵（14）设置的次像素层（16）、形成于该黑色矩阵（14）、第一透明基板（12）与次像素层（16）上的公共电极（18），所述公共电极（18）上形成有数个孔（20）。本发明通过在公共电极中对应黑色矩阵蚀刻出数个条状的孔，来增大彩色滤光基板之间的电阻，从而增大彩色滤光基板的耦合难度，改善液晶显示器的串扰现象，并提高显示品质。

Description

彩色滤光基板及液晶显示面板
技术领域
本发明涉及液晶显示技术领域，尤其涉及一种彩色滤光基板及液晶显示面板。
背景技术
液晶显示器具有机身薄、省电、无辐射等众多优点，得到了广泛的应用。现有市场上的液晶显示器大部分为背光型液晶显示器，其包括液晶面板及背光模组（backlight module）。液晶面板的工作原理是在两片平行的玻璃基板当中放置液晶分子，并在两片玻璃基板上施加驱动电压来控制液晶分子的旋转方向，以将背光模组的光线折射出来产生画面。由于液晶面板本身不发光，需要借由背光模组提供的光源来正常显示影像，因此，背光模组成为液晶显示器的关键组件之一。背光模组依照光源入射位置的不同分成侧入式背光模组与直下式背光模组两种。直下式背光模组是将发光光源例如CCFL(ColdCathode Fluorescent Lamp，阴极萤光灯管)或LED(Light Emitting Diode，发光二极管)设置在液晶面板后方，直接形成面光源提供给液晶面板。而侧入式背光模组是将背光源LED灯条（Lightbar）设于液晶面板侧后方的背板边缘，LED灯条发出的光线从导光板（LGP，Light Guide Plate）一侧的入光面进入导光板，经反射和扩散后从导光板出光面射出，在经由光学膜片组，以形成面光源提供给液晶显示面板。
液晶显示器是一种被动式显示装置，为达到彩色显示的效果，需要为其提供彩色滤光片，其作用是将通过的白光转化为红、绿、蓝三原色光束，进而以达到显示不同色彩影像的效果。请参阅图1，其为现有技术彩色滤光基板的结构示意图，该彩色滤光基板包括：玻璃基板102、黑色矩阵区104、次像素层106、平坦层108和公共电极109。次像素层106是由有机彩色涂料制得的红次像素202、绿次像素204、及蓝次像素206三种滤光像素构成，在该玻璃基板102上重复规则排列该三种滤光像素以分别通过红、蓝、绿三原色光，阻挡其它波长的光通过。黑色矩阵区104设置在该三种滤光像素之间，其作用是遮断通过三种滤光像素间的光线，防止光线泄露且阻止着色材料混合。
在薄膜晶体管液晶显示面板中，彩色滤光基板中的公共电极与阵列基板中的像素电极共同控制像素（pixel）的亮暗，但是彩色滤光基板的公共电极的电位很容易受到高低电位信号的影响，引起串扰（crosstalk）等现象。请参阅图2，以三栅（trigate）产品为例，当用手点液晶显示面板上的图案时，彩色滤光基板的公共电极就会被高低电位耦合，产生串扰现象300，请参阅图3，图2中AB两处间的电阻为R1。除了加大液晶盒厚度（cell gap）减小耦合电容，没有其他有效的方法来解此问题，但液晶盒厚度一般是不变的。
发明内容
本发明的目的在于提供一种彩色滤光基板，通过在公共电极中对应黑色矩阵蚀刻出数个条状的孔，来增大彩色滤光基板之间的电阻，从而增大彩色滤光基板的耦合难度，改善液晶显示器的串扰现象，并提高显示品质。
本发明的另一目的在于提供一种液晶显示面板，通过在彩色滤光基板的公共电极中对应黑色矩阵及阵列基板的数据线蚀刻出数个条状的孔，来增大彩色滤光基板之间的电阻，从而增大彩色滤光基板的耦合难度，改善液晶显示器的串扰现象，并提高显示品质。
为实现上述目的，本发明提供一种彩色滤光基板，包括：一第一透明基板、形成于该第一透明基板上的黑色矩阵、形成于该第一透明基板上并对应黑色矩阵设置的次像素层、形成于该黑色矩阵、第一透明基板与次像素层上的公共电极，所述公共电极上形成有数个孔。
每一所述孔的形状为条状，所述数个孔相互平行排列。
所述数个孔对应黑色矩阵设置。
所述彩色滤光基板还包括：形成于黑色矩阵与次像素层上的平坦层，所述公共电极形成于该平坦层上。
所述公共电极为一氧化铟锡薄膜图案；所述第一透明基板为塑料基板或玻璃基板；所述次像素层包括：红次像素、绿次像素、及蓝次像素。
本发明还提供一种液晶显示面板，包括：阵列基板、与阵列基板相贴合的彩色滤光基板及密封于两基板间的液晶材料，所述彩色滤光基板包括：一第一透明基板、形成于该第一透明基板上的黑色矩阵、形成于该第一透明基板上并对应次黑色矩阵设置的像素层、形成于该黑色矩阵、第一透明基板与次像素层上的公共电极，所述公共电极上形成有数个孔。
所述数个孔对应黑色矩阵设置，每一所述孔的形状为条状，所述数个孔相互平行排列。
所述阵列基板包括：一第二透明基板、形成于第二透明基板上的第一金属层、形成于第一金属层与第二透明基板上的绝缘层、形成于绝缘层上的半导体层、形成于半导体层上的重掺杂n+型半导体层、形成于半导体层、重掺杂n+型半导体层及绝缘层上的第二金属层、形成于第二金属层与绝缘层上的保护层、以及形成于保护层上的像素电极，所述第二金属层用于形成源极、漏极及数据线，所述数个孔对应黑色矩阵和数据线设置，所述第二透明基板为塑料基板或玻璃基板。
所述彩色滤光基板还包括：形成于黑色矩阵与次像素层上的平坦层，所述公共电极形成于该平坦层上。
所述公共电极为一氧化铟锡薄膜图案；所述第一透明基板为塑料基板或玻璃基板；所述次像素层包括：红次像素、绿次像素、及蓝次像素。
本发明的有益效果：本发明的彩色滤光基板，通过在公共电极中对应黑色矩阵蚀刻出数个条状的孔，来增大彩色滤光基板之间的电阻，从而增大彩色滤光基板的耦合难度，改善液晶显示器的串扰现象，并提高显示品质；本发明的液晶显示面板，通过在彩色滤光基板的公共电极中对应黑色矩阵及阵列基板的数据线蚀刻出数个条状的孔，来增大彩色滤光基板之间的电阻，从而增大彩色滤光基板的耦合难度，改善液晶显示器的串扰现象，并提高显示品质。
为了能更进一步了解本发明的特征以及技术内容，请参阅以下有关本发明的详细说明与附图，然而附图仅提供参考与说明用，并非用来对本发明加以限制。
附图说明
下面结合附图，通过对本发明的具体实施方式详细描述，将使本发明的技术方案及其它有益效果显而易见。
附图中，
图1为现有技术中彩色滤光基板的结构示意图；
图2为现有液晶显示器中出现串扰现象示意图；
图3为图2中AB两处电位的等效电路图；
图4为本发明彩色滤光基板的结构示意图；
图5为图4中公共电极的俯视图；
图6为本发明彩色滤光基板中电位的等效电路图；
图7为本发明液晶显示面板的结构示意图。
具体实施方式
为更进一步阐述本发明所采取的技术手段及其效果，以下结合本发明的优选实施例及其附图进行详细描述。
请参阅图4，本发明提供一种彩色滤光基板10，包括：一第一透明基板12、形成于该第一透明基板12上的黑色矩阵14、形成于该第一透明基板12上并对应黑色矩阵14设置的次像素层16、形成于该黑色矩阵14、第一透明基板12与次像素层16上的公共电极18，所述公共电极18上形成有数个孔20。
在本实施例中，所述数个孔20对应黑色矩阵14设置。每一所述孔20的形状为条状，所述数个孔20相互平行排列，如图5所示。通过在公共电极18上设置该些条状的孔20，可以增大彩色滤光基板10之间的电阻。请继续参阅图6，并结合参阅图3，图6为本发明彩色滤光基板10中电位的等效电路图，图中A’等效于图3中的A处，B’等效于图3中的B处，A’B’间的电阻为R2，由于增加了数个条状孔20，A’B’之间的电阻R2较图3中AB之间的电阻R1大，即R2＞R1。本发明通过在公共电极18中对应黑色矩阵14蚀刻出数个条状的孔20，来增大彩色滤光基板10之间的电阻，从而增大彩色滤光基板10的耦合难度，改善液晶显示器的串扰现象，并提高显示品质。
所述彩色滤光基板10还包括：形成于黑色矩阵14与次像素层16上的平坦层（为了便于观察，未图示该平坦层），所述公共电极18形成于该平坦层上。
所述公共电极18为一氧化铟锡薄膜图案，其通过曝光、显影、蚀刻等工艺形成。所述第一透明基板12为塑料基板或玻璃基板。所述次像素层16包括：红次像素、绿次像素、及蓝次像素，经白光穿过这三种次像素，进而可以获得红、绿、蓝三原色光，实现彩色显示。
请参阅图5至图7，本发明还提供一种液晶显示面板，包括：阵列基板40、与阵列基板40相贴合的彩色滤光基板10及密封于两基板间的液晶材料30，所述彩色滤光基板10包括：一第一透明基板12、形成于该第一透明基板12上的黑色矩阵14、形成于该第一透明基板12上并对应该黑色矩阵14设置的次像素层16、形成于该黑色矩阵14、第一透明基板12与次像素层16上的公共电极18，所述公共电极18上形成有数个孔20。
所述阵列基板40包括：一第二透明基板22、形成于第二透明基板22上的第一金属层23、形成于第一金属层23与第二透明基板22上的绝缘层24、形成于绝缘层24上的半导体层25、形成于半导体层25上的重掺杂n+型半导体层26、形成于半导体层25、重掺杂n+型半导体层26及绝缘层24上的第二金属层27、形成于第二金属层27与绝缘层24上的保护层28、以及形成于保护层28上的像素电极29，所述第一金属层23用于形成栅极及栅极线，所述第二金属层27用于形成源极、漏极及数据线，所述第二透明基板22为塑料基板或玻璃基板。在本实施例中，所述数个孔20对应黑色矩阵14和数据线设置，每一所述孔20的形状为条状，所述数个孔20相互平行排列，如图5所示。
通过在公共电极18上设置该些条状的孔20，可以增大彩色滤光基板10之间的电阻。请继续参阅图6，并结合参阅图3，图6为本发明彩色滤光基板10中电位的等效电路图，图中A’等效于图3中的A处，B’等效于图3中的B处，A’B’间的电阻为R2，由于增加了数个条状孔20，A’B’之间的电阻R2较图3中AB之间的电阻R1大，即R2＞R1。本发明通过在公共电极18中对应黑色矩阵14蚀刻出数个条状的孔20，来增大彩色滤光基板10之间的电阻，从而增大彩色滤光基板10的耦合难度，改善液晶显示器的串扰现象，并提高显示品质。
所述彩色滤光基板10还包括：形成于黑色矩阵14与次像素层16上的平坦层（为了便于观察，未图示该平坦层），所述公共电极18形成于该平坦层上。
所述公共电极18为一氧化铟锡薄膜图案，其通过曝光、显影、蚀刻等工艺形成。所述第一透明基板12为塑料基板或玻璃基板。所述次像素层16包括：红次像素、绿次像素、及蓝次像素，经白光穿过这三种次像素，进而可以获得红、绿、蓝三原色光，实现彩色显示。
综上所述，本发明的彩色滤光基板，通过在公共电极中对应黑色矩阵蚀刻出数个条状的孔，来增大彩色滤光基板之间的电阻，从而增大彩色滤光基板的耦合难度，改善液晶显示器的串扰现象，并提高显示品质；本发明的液晶显示面板，通过在彩色滤光基板的公共电极中对应黑色矩阵及阵列基板的数据线蚀刻出数个条状的孔，来增大彩色滤光基板之间的电阻，从而增大彩色滤光基板的耦合难度，改善液晶显示器的串扰现象，并提高显示品质。
以上所述，对于本领域的普通技术人员来说，可以根据本发明的技术方案和技术构思作出其他各种相应的改变和变形，而所有这些改变和变形都应属于本发明权利要求的保护范围。

Claims (10)

1.一种彩色滤光基板，其特征在于，包括：一第一透明基板（12）、形成于该第一透明基板（12）上的黑色矩阵（14）、形成于该第一透明基板（12）上并对应黑色矩阵（14）设置的次像素层（16）、形成于该黑色矩阵（14）、第一透明基板（12）与次像素层（16）上的公共电极（18），所述公共电极（18）上形成有数个孔（20）。
2.如权利要求1所述的彩色滤光基板，其特征在于，每一所述孔（20）的形状为条状，所述数个孔（20）相互平行排列。
3.如权利要求1所述的彩色滤光基板，其特征在于，所述数个孔（20）对应黑色矩阵（14）设置。
4.如权利要求3所述的彩色滤光基板，其特征在于，还包括：形成于黑色矩阵（14）与次像素层（16）上的平坦层，所述公共电极（18）形成于该平坦层上。
5.如权利要求1所述的彩色滤光基板，其特征在于，所述公共电极（18）为一氧化铟锡薄膜图案；所述第一透明基板（12）为塑料基板或玻璃基板；所述次像素层（16）包括：红次像素、绿次像素、及蓝次像素。
6.一种液晶显示面板，其特征在于，包括：阵列基板（40）、与阵列基板（40）相贴合的彩色滤光基板（10）及密封于两基板间的液晶材料（30），所述彩色滤光基板（10）包括：一第一透明基板（12）、形成于该第一透明基板（12）上的黑色矩阵（14）、形成于该第一透明基板（12）上并对应黑色矩阵（14）设置的次像素层（16）、形成于该黑色矩阵（14）、第一透明基板（12）与次像素层（16）上的公共电极（18），所述公共电极（18）上形成有数个孔（20）。
7.如权利要求6所述的液晶显示面板，其特征在于，所述数个孔（20）对应黑色矩阵（14）设置，每一所述孔（20）的形状为条状，所述数个孔（20）相互平行排列。
8.如权利要求6所述的液晶显示面板，其特征在于，所述阵列基板（40）包括：一第二透明基板（22）、形成于第二透明基板（22）上的第一金属层（23）、形成于第一金属层（23）与第二透明基板（22）上的绝缘层（24）、形成于绝缘层（24）上的半导体层（25）、形成于半导体层（25）上的重掺杂n+型半导体层（26）、形成于半导体层（25）、重掺杂n+型半导体层（26）及绝缘层（24）上的第二金属层（27）、形成于第二金属层（27）与绝缘层（24）上的保护层（28）、以及形成于保护层（28）上的像素电极（29），所述第二金属层（27）用于形成源极、漏极及数据线，所述数个孔（20）对应黑色矩阵（14）和数据线设置，所述第二透明基板（22）为塑料基板或玻璃基板。
9.如权利要求8所述的液晶显示面板，其特征在于，所述彩色滤光基板（10）还包括：形成于黑色矩阵（14）与次像素层（16）上的平坦层，所述公共电极（18）形成于该平坦层上。
10.如权利要求6所述的液晶显示面板，其特征在于，所述公共电极（18）为一氧化铟锡薄膜图案；所述第一透明基板（12）为塑料基板或玻璃基板；所述次像素层（16）包括：红次像素、绿次像素、及蓝次像素。
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