CN105068299B - 一种显示面板及液晶显示器 - Google Patents

一种显示面板及液晶显示器 Download PDF

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CN105068299B
CN105068299B CN201510448290.0A CN201510448290A CN105068299B CN 105068299 B CN105068299 B CN 105068299B CN 201510448290 A CN201510448290 A CN 201510448290A CN 105068299 B CN105068299 B CN 105068299B
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liquid crystal
crystal layer
tft substrate
display panel
phase
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CN105068299A (zh
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谢畅
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Wuhan China Star Optoelectronics Technology Co Ltd
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Wuhan China Star Optoelectronics Technology Co Ltd
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    • G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
    • G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour 
    • G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  based on liquid crystals, e.g. single liquid crystal display cells
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Abstract

本发明公开了一种显示面板及液晶显示器，该显示面板包括：彩膜基板、TFT基板以及彩膜基板和TFT基板之间的液晶层；显示面板分为阵列分布的多个像素区域，每个像素区域包括沿TFT基板垂直方向划分的透射区和反射区，透射区和反射区中的液晶层的厚度相同；在透射区中，液晶层与TFT基板之间或液晶层与彩膜基板之间还设置相位延迟板。通过上述方式，本发明能够减少磨刷工序中液晶配向的不良和暗态漏光，同时可以简化结构，降低工艺难度。

Description

一种显示面板及液晶显示器
技术领域
本发明涉及液晶显示领域，特别是涉及一种显示面板及液晶显示器。
背景技术
液晶显示器面板一般由彩膜基板和阵列基板对盒形成，两个基板之间的空间中封装有液晶层；由于液晶分子自身不发光，所以显示面板需要光源以便显示图像，根据采用光源类型的不同，液晶显示器可分为透射式、反射式和透反式。
其中，透反式液晶显示面板则可视为透射式与反射式液晶显示面板的结合，在阵列基板上既设置有反射区，又设置有透射区，可以同时利用背光源以及前光源或者外界光源以进行显示。
透反式液晶显示面板兼具透射式和反射式液晶显示面板的优点，既可以在暗的环境下显示明亮的图像，室内使用，也可以在室外使用。因此，它被广泛用于便携式移动电子产品的显示设备。
但是这种结构存在一些缺点，由于不同盒厚的设计时会在透射区和反射区交界处形成段差(高度差)，这将引起液晶取向的紊乱，造成磨刷工序中液晶配向的不良和暗态漏光。
发明内容
本发明主要解决的技术问题是提供一种显示面板及液晶显示器，能够减少磨刷工序中液晶配向的不良和暗态漏光，同时可以简化结构，降低工艺难度。
为解决上述技术问题，本发明采用的一个技术方案是：提供一种显示面板，其特征在于，显示面板包括：彩膜基板、TFT基板以及彩膜基板和TFT基板之间的液晶层；显示面板分为阵列分布的多个像素区域，每个像素区域包括沿TFT基板垂直方向划分的透射区和反射区，透射区和反射区中的液晶层的厚度相同；在透射区中，液晶层与TFT基板之间或液晶层与彩膜基板之间还设置相位延迟板。
其中，液晶层的相位延迟为1/4λ，相位延迟板的相位延迟为1/4λ，透射区的相位延迟为1/2λ。
其中，相位延迟板是采用涂覆的方式形成在TFT基板或彩膜基板上的。
其中，反射区中，液晶层和TFT基板之间还包括反射层。
其中，液晶层的相位延迟为1/4λ，光线通过液晶层并被反射层反射后再次通过液晶层的相位延迟为1/2λ。
其中，反射区中，反射层设置于TFT基板上靠近液晶层的一侧；透射区中，相位延迟板设置于TFT基板上靠近液晶层的一侧。
其中，液晶层为正性液晶层。
其中，彩膜基板靠近液晶层的一侧还包括公共电极，远离液晶层的一侧还包括彩膜偏光片。
其中，TFT基板靠近液晶层的一侧还包括像素电极，远离液晶层的一侧还包括TFT偏光片。
为解决上述技术问题，本发明采用的另一个技术方案是：提供一种液晶显示器，包括背光光源，其中，液晶显示器还包括如上述的显示面板。
本发明的有益效果是：区别于现有技术的情况，本发明公开了一种显示面板及液晶显示器，该显示面板包括：彩膜基板、TFT基板以及彩膜基板和TFT基板之间的液晶层；显示面板分为阵列分布的多个像素区域，每个像素区域包括沿TFT基板垂直方向划分的透射区和反射区，透射区和反射区中的液晶层的厚度相同；在透射区中，液晶层与TFT基板之间或液晶层与彩膜基板之间还设置相位延迟板。即在透射区中增加一层相位延迟板以增加光线通过该区域的相位延迟量，使光线单次通过透射区的相位延迟与光线两次通过反射区的相位延迟量相等，从而使该液晶显示面板为单盒厚，能够减少磨刷工序中液晶配向的不良和暗态漏光，同时可以简化结构，降低工艺难度。
附图说明
图1是现有技术中半反半透液晶显示面板的结构示意图；
图2是本发明显示面板第一实施方式的结构示意图；
图3是本发明显示面板第二实施方式的结构示意图；
图4是本发明显示面板第二实施方式中的光路原理示意图；
图5是本发明液晶显示器一实施方式的结构示意图。
具体实施方式
参阅图1，图1是现有技术中半反半透液晶显示面板的结构示意图，现有技术中的半反半透液晶显示面板中的每个像素区域分为透射区和反射区，每个区域均是由彩膜基板110、阵列基板120以及夹持于该彩膜基板110和阵列基板120之间的液晶层130组成。反射区的液晶层130与阵列基板120之间还设置反射层150和树脂层160，当光线从反射区的彩膜基板110入射时，在遇到反射层150后会反射，即光线两次经过液晶层130。因此，光线的相位延迟是单次经过该液晶层130的两倍。
由于上述原因，所以在现有技术中显示面板的透射区中，为了使光线的相位延迟与反射区中的相位延迟达到同一水平，往往会增加透射区中液晶层130的厚度，即液晶层130在透射区和反射区中的厚度不同，这样，需要在反射区中增加一树脂层160，但是这样会引起液晶取向的紊乱，造成磨刷工序中液晶配向的不良和暗态漏光。本发明实施方式提供的一种显示面板用以解决上述技术问题，下面将结合附图对本发明实施方式的工作原理进行详细的解释说明。
参阅图2，本发明显示面板一实施方式的结构示意图，该显示面板包括：彩膜基板210、TFT基板220以及彩膜基板210和TFT基板220之间的液晶层230；显示面板分为阵列分布的多个像素区域，每个像素区域包括沿TFT基板220垂直方向划分的透射区和反射区，透射区和反射区中的液晶层的厚度相同；在透射区中，液晶层230的与TFT基板220之间或液晶层230与彩膜基板220之间还设置相位延迟板240。如图2所示，在本实施方式中，该相位延迟板240设置在液晶层230与TFT基板220之间。
上述像素区域可以是指像素结构中可透光的区域。例如，阵列基板220靠近液晶层230的内侧还可以设置有栅线以及与栅线交叉设置的数据线，栅线与数据线限定出多个像素区域；彩膜基板210靠近液晶层230的内侧设置有黑矩阵图形，以及阵列形式排列的红、绿、蓝滤光结构；其中，黑矩阵图形与交叉设置的栅线、数据线相对应。当然，这仅是一个示例，不应理解为对本发明所做的限制。
其中，由于相位延迟板240的作用是使通过其的光线产生相位延迟，因此该相位延迟板240可以设置于液晶层230的上表面或者下表面，在其他实施方式中，相位延迟板也可以设置于其他地方，例如，阵列基板220远离液晶层230的一侧。
同时，该相位延迟板240的相位延迟量可以根据需要任意设置，在本实施方式中，为了使透射区和反射区的光线的相位延迟量相等，可以将该相位延迟板240的相位延迟量设置为单盒厚液晶层的相位延迟量。
另外，每个像素区域的反射区和透射区的划分并不是平均分配，可以根据不同光线的强度
区别于现有技术，本实施方式公开了一种显示面板，其包括：彩膜基板、TFT基板以及彩膜基板和TFT基板之间的液晶层；显示面板分为阵列分布的多个像素区域，每个像素区域包括沿TFT基板垂直方向划分的透射区和反射区，透射区和反射区中的液晶层的厚度相同；在透射区中，液晶层与TFT基板之间或液晶层与彩膜基板之间还设置相位延迟板。即在透射区中增加一层相位延迟板以增加光线通过该区域的相位延迟量，使光线单次通过透射区的相位延迟与光线两次通过反射区的相位延迟量相等，从而使该液晶显示面板为单盒厚，能够减少磨刷工序中液晶配向的不良和暗态漏光，同时可以简化结构，降低工艺难度。
参阅图3，本发明显示面板第二实施方式的结构示意图，该显示面板包括：彩膜基板310、TFT基板320以及彩膜基板310和TFT基板320之间的液晶层330；显示面板分为阵列分布的多个像素区域，每个像素区域包括沿TFT基板320垂直方向划分的透射区和反射区，透射区和反射区中的液晶层的厚度相同；在透射区中，液晶层330的与TFT基板320之间还设置相位延迟板340。
其中，反射区中，液晶层330和TFT基板320之间还包括反射层350。该反射层350用于使从反射区的彩膜基板310方向入射的光线通过液晶层330后反射回去。
在本实施方式中，反射区中，反射层350设置于TFT基板320上靠近液晶层330的一侧；透射区中，相位延迟板340是采用涂覆的方式形成在TFT基板320或彩膜基板310上的，在本实施方式中，相位延迟板340设置于TFT基板320上靠近液晶层330的一侧。即相位延迟板340和反射层350并列设置。
相位延迟板340是采用涂覆的方式形成在TFT基板或彩膜基板上的
其中，彩膜基板310靠近液晶层330的一侧还包括公共电极312，远离液晶层330的一侧还包括彩膜偏光片311。
其中，TFT基板320靠近液晶层330的一侧还包括像素电极321，远离液晶层330的一侧还包括TFT偏光片321。
具体地，公共电极312和像素电极321的形状可以根据需要而设置，例如可以设置成条形电极，当然，像素电极321是设置于相位延迟板340和反射层350所在层与TFT基板320之间的。
参阅图4，本发明显示面板第二实施方式中的光路原理示意图，在本实施方式中，液晶层330为正性液晶层，液晶层330的相位延迟为1/4λ，因此，在反射区中，由于光线通过反射层350反射会两次经过液晶层330，所以光线进入反射区并出射后的相位延迟为1/4λ+1/4λ＝1/2λ，要使透射区的相位延迟与反射区的相位延迟匹配，应当设置相位延迟板的相位延迟量为1/4λ，这样，透射区的相位延迟也为1/4λ+1/4λ＝1/2λ。
参阅图5，本发明液晶显示器一实施方式的结构示意图，该液晶显示器包括背光光源520，其中，液晶显示器还包括显示面板510，其中，该显示面板可510可参见如图2-4所述，在此不加赘述。
区别于现有技术，本实施方式公开了一种液晶显示器，包括背光光源和显示面板，该显示面板包括：彩膜基板、TFT基板以及彩膜基板和TFT基板之间的液晶层；显示面板分为阵列分布的多个像素区域，每个像素区域包括沿TFT基板垂直方向划分的透射区和反射区，透射区和反射区中的液晶层的厚度相同；在透射区中，液晶层与TFT基板之间或液晶层与彩膜基板之间还设置相位延迟板。即在透射区中增加一层相位延迟板以增加光线通过该区域的相位延迟量，使光线单次通过透射区的相位延迟与光线两次通过反射区的相位延迟量相等，从而使该液晶显示面板为单盒厚，能够减少磨刷工序中液晶配向的不良和暗态漏光，同时可以简化结构，降低工艺难度。
以上所述仅为本发明的实施方式，并非因此限制本发明的专利范围，凡是利用本发明说明书及附图内容所作的等效结构或等效流程变换，或直接或间接运用在其他相关的技术领域，均同理包括在本发明的专利保护范围内。

Claims (7)

1.一种显示面板，其特征在于，所述显示面板包括：彩膜基板、TFT基板以及所述彩膜基板和TFT基板之间的液晶层；
所述显示面板分为阵列分布的多个像素区域，每个所述像素区域包括沿所述TFT基板垂直方向划分的透射区和反射区，所述透射区和反射区中的所述液晶层的厚度相同；
在所述透射区中，所述液晶层与所述TFT基板之间或所述液晶层与所述彩膜基板之间还设置相位延迟板；
所述反射区中，所述液晶层和所述TFT基板之间还包括反射层，在所述反射区未设置相位延迟板；
所述液晶层的相位延迟为1/4λ；所述相位延迟板的相位延迟为1/4λ，所述透射区的相位延迟为1/4λ+1/4λ＝1/2λ，光线进入反射区并出射后的相位延迟为1/4λ+1/4λ＝1/2λ，以使所述透射区的相位延迟与所述反射区的相位延迟匹配。
2.根据权利要求1所述的显示面板，其特征在于，所述相位延迟板是采用涂覆的方式形成在所述TFT基板或彩膜基板上的。
3.根据权利要求1所述的显示面板，其特征在于，所述反射区中，所述反射层设置于所述TFT基板上靠近所述液晶层的一侧；所述透射区中，所述相位延迟板设置于所述TFT基板上靠近所述液晶层的一侧。
4.根据权利要求1所述的显示面板，其特征在于，所述液晶层为正性液晶层。
5.根据权利要求1所述的显示面板，其特征在于，所述彩膜基板靠近所述液晶层的一侧还包括公共电极，远离所述液晶层的一侧还包括彩膜偏光片。
6.根据权利要求1所述的显示面板，其特征在于，所述TFT基板靠近所述液晶层的一侧还包括像素电极，远离所述液晶层的一侧还包括TFT偏光片。
7.一种液晶显示器，包括背光光源，其特征在于，所述液晶显示器还包括如权利要求1-6任一项所述的显示面板。
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