CN107481686B - 改善液晶面板显示状态的方法、液晶面板及液晶显示器 - Google Patents

改善液晶面板显示状态的方法、液晶面板及液晶显示器 Download PDF

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CN107481686B
CN107481686B CN201710728883.1A CN201710728883A CN107481686B CN 107481686 B CN107481686 B CN 107481686B CN 201710728883 A CN201710728883 A CN 201710728883A CN 107481686 B CN107481686 B CN 107481686B
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CN107481686A (zh
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邢振周
左清成
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Wuhan China Star Optoelectronics Technology Co Ltd
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Abstract

本发明公开了一种改善液晶面板显示状态的方法，所述方法包括：获取所述液晶面板的阵列基板一栅极信号线上远端子像素单元、中间子像素单元、近端子像素单元的存储电容值；调整远端子像素单元和近端子像素单元的储存电容值，使远端子像素单元、近端子像素单元电容耦合效应产生的压降与中间子像素单元电容耦合效应产生的压降相同；根据上述已调整的远端子像素单元和近端子像素单元的存储电容值，对应调整其它栅极信号线上远端子像素单元和近端子像素单元的存储电容值。通过上述方式，改善了液晶面板框亮度不均或模组两侧发白现象，从而提升液晶面板的显示品质。

Description

改善液晶面板显示状态的方法、液晶面板及液晶显示器
技术领域
本发明涉及显示技术领域，尤其涉及一种改善液晶面板显示状态的方法、液晶面板及液晶显示器。
背景技术
信息社会中随着信心量的增加和信息交换的频繁，人们会更多、更广泛、更经常地面对各种显示装置。也就是说，显示器以及显示技术已经成为了人们生活中不可缺少的一部分。在20世纪，图像显示器中，阴极射线管(CRT)占据了绝对统治的地位，随着显示技术的发展，CRT显示器因为体积过大以及能耗电量消耗巨大等因素，无法满足用户的需求。而液晶显示(Liquid Crystal Display，LCD)技术的发展正好切合目前信息产品的潮流。
LCD器件是众多平面显示器件中发展最成熟、应用最广泛、并且还在迅速发展着的一种显示器件。自1968年第一块液晶显示器诞生后，由于不断地有新材料、新工艺的出现，新的液晶显示技术也在不断涌现，但目前为止任只有TN、STN、TFD和TFT三种显示技术在不同档次的液晶显示中占据着统治地位、TN、STN、TFD及TFT型液晶显示器因其驱动原理不同，在视角、彩色、对比及动画显示品质上有高低层次之差别，使其在产品的应用范围分类有明显区别。以目前液晶显示技术应用范围和层次而言，主动矩阵驱动技术是以薄膜式晶体管型(TFT)为主流，多应用于移动终端以及动画、影响处理产品。
一般来说，TFT(Thin Film Transistor)LCD液晶面板在制造及驱动过程中，若存在框胶污染、液晶进水汽或模组驱动设计存在缺陷等问题，均会导致框亮度不均(Mura)或模组两侧发白的现象产生。这种现象主要是由于LCD液晶面板中电容耦合效应现(Feed-through)引起的，如图1所示，TFT-LCD液晶面板中存在寄生电容Cgs，故当TFT关闭时，像素上电荷守恒如图2所示，电荷守恒定律：
当Vg＝Vgh时,
Q＝(Vgh-Vs)*Cgs+(Vcom-Vs)*(Cst+Clc) (1)
当Vg＝Vgl时,
Q＝(Vgh-Vs″)*Cgs+(Vcom-Vs″)*(Cst+Clc) (2)
△V＝Vs-Vs″，得Feed-through电压。
Figure GDA0002211373560000021
(其中，Vg——栅极信号线电压，Vgh和Vgl——子像素栅极信号输入线电压，Vs和Vs″——漏极电压，Vcom——共模电压，Cst——存储电容，Clc——LC滤波输出电压；)
如图3所示，Feed-through现象导致液晶面板两侧发白是由于Gate line(栅极信号线)信号在传输过程中受到面板RC Loading(电容和电阻负载)影响，会产生传输延迟失真现象，从而导致A/B/C三点Feed-through(电容耦合效应)电压△V_A/△V_B/△V_C大小不同，表现为△V_A>△V_B>△V_C，即A/B/C三点最佳VCOM(共模电压)值表现为Best VCOM_A＜BestVCOM_B＜Best VCOM_C，且由于面板为交错式驱动，故面板整体最佳VCOM设定值接近于BestVCOM_C，最终导致A点比B点亮，B点比C点亮。假设A点亮度为9nits，则B点亮度为7nits，C点亮度为6nits；如图1所示，此时以Gate line1和Gate line2两行亮度为例，则A点亮度约为(9+6＝15nits)，B点亮度约为(7+7＝14nits)，C点亮度约为(6+9＝15nits)(nits——发光强度，单位：cd/m2)，即面板两侧边缘会出现发白现象，具体是由于同一条栅极信号线由于RC电路的影响，从近端到远端信号失真会越来越严重，即子像素单元亮度从近端到远端也会越来越暗，由于面板驱动为栅极左右交替驱动，故表现为两侧亮度较亮的结果(两侧发白)。
发明内容
本发明主要解决的技术问题是，提供一种改善液晶面板显示状态的方法、液晶面板及液晶显示器，以解决液晶面板两侧容易产生发白的问题。
为解决上述技术问题，本发明提供了一种改善液晶面板显示状态的方法，所述方法包括：获取所述液晶面板的阵列基板一栅极信号线上远端子像素单元、中间子像素单元、近端子像素单元的存储电容值；调整远端子像素单元和近端子像素单元的存储电容值，使远端子像素单元、近端子像素单元电容耦合效应产生的压降与中间子像素单元电容耦合效应产生的压降相同，其中，所述存储电容值为用以维持每个像素信号电压的电容器的电容值；；所述调整远端子像素单元和近端子像素单元的存储电容值，使远端子像素单元和近端子像素单元电容耦合效应产生的压降与中间子像素单元电容耦合效应产生的压降相同的具体步骤包括：所述远端子像素单元的存储电容的介电常数小于所述中间子像素单元的介电常数，所述中间子像素单元的介电常数小于所述近端子像素单元的介电常数，使远端子像素单元和近端子像素单元电容耦合效应产生的压降与中间子像素单元电容耦合效应产生的压降相同，获取所述液晶面板的阵列基板一栅极信号线上远端子像素单元区域、中间子像素单元区域、近端子像素单元区域的平均存储电容值；根据上述已调整的远端子像素单元和近端子像素单元的存储电容值，对应调整其它栅极信号线上远端子像素单元和近端子像素单元的存储电容值。
其中，所述调整远端子像素单元和近端子像素单元的存储电容值，使远端子像素单元和近端子像素单元电容耦合效应产生的压降与中间子像素单元电容耦合效应产生的压降相同的具体步骤包括：所述远端子像素单元的存储电容的介电常数小于所述中间子像素单元的介电常数，所述中间子像素单元的介电常数小于所述近端子像素单元的介电常数，使远端子像素单元和近端子像素单元电容耦合效应产生的压降与中间子像素单元电容耦合效应产生的压降相同。
其中，所述远端子像素单元、中间子像素单元、近端子像素单元沿同一栅极信号线划分为远端子像素单元区域、中间子像素单元区域和近端子像素单元区域。
其中，所述获取所述液晶面板的阵列基板一栅极信号线上远端子像素单元、中间子像素单元、近端子像素单元的存储电容值的步骤具体包括：获取所述液晶面板的阵列基板一栅极信号线上远端子像素单元区域、中间子像素单元区域、近端子像素单元区域的平均存储电容值。
进一步的，改善液晶面板显示状态的方法还包括减小液晶面板源线两侧输出缓冲级中OP放大器数目，使液晶面板两侧的亮度与中间的亮度一致。
可选的，改善液晶面板显示状态的方法还包括增加源线中间部分输出缓冲级中OP放大器的面积，使液晶面板两侧的亮度与中间的亮度一致。
可选的，改善液晶面板显示状态的方法还包括增加黑色矩阵薄膜覆盖宽度，使液晶面板两侧的亮度与中间的亮度一致。
为解决上述技术问题，本发明提供一种液晶面板，包括：远端子像素单元，所述远端子像素单元上设有存储电容；中间子像素单元，所述中间子像素单元上设有存储电容；近端子像素单元，所述近端子像素单元上设有存储电容；所述存储电容值为用以维持每个像素信号电压的电容器的电容值，所述远端子像素单元的存储电容的介电常数小于所述中间子像素单元的介电常数，所述中间子像素单元的介电常数小于所述近端子像素单元的介电常数，使远端子像素单元和近端子像素单元电容耦合效应产生的压降与中间子像素单元电容耦合效应产生的压降相同，获取所述液晶面板的阵列基板一栅极信号线上远端子像素单元区域、中间子像素单元区域、近端子像素单元区域的平均存储电容值。
为解决上述技术问题，本发明还提供一种液晶显示器，包括液晶面板，所述液晶面板使用上述任一所述改善液晶面板显示状态的方法所制得。
本发明的有益效果是：区别于现有技术，本发明通过改变子像素单元的存储电容，使远端子像素单元和近端子像素单元电容耦合效应产生的压降与中间子像素单元电容耦合效应产生的压降相同，有效改善了液晶面板框亮度不均或模组两侧发白现象，为用户提供更优质的体验。
附图说明
图1是现有技术中液晶面板中寄生电容Cgs示意图；
图2是现有技术中液晶面板中Feed-through电压示意图；
图3栅极信号线上不同点Feed-through现象示意图；
图4是本发明一种改善液晶面板显示状态的方法一实施例的流程示意图；
图5是本发明一实施例存储电容为公共极架构示意图；
图6是本发明一实施例存储电容为门级架构示意图；
图7是本发明液晶面板一实施例等效电路图；
图8是现有技术源极驱动器处理视频信号示意图；
图9是本发明一实施例源极驱动器结构示意图；
图10是本发明另一实施例源极驱动器结构示意图；
图11是本发明一实施例黑色矩阵结构示意图；
图12是本发明液晶面板一实施例电连接示意图；
图13是本发明液晶面板一实施例的结构示意图。
具体实施例
下面结合附图和实施例对本发明进行详细说明。
请参阅图4，图4是本发明一种改善液晶面板的方法一实施例的流程示意图，本实施例的一种改善液晶面板的方法包括如下步骤：
401：获取所述液晶面板的阵列基板一栅极信号线上远端子像素单元、中间子像素单元、近端子像素单元的存储电容值；
在本实施例中，远端子像素单元、中间子像素单元、近端子像素单元沿同一栅极信号线划分为远端子像素单元区域、中间子像素单元区域和近端子像素单元区域。获取液晶面板的阵列基板一栅极信号线上远端子像素单元、中间子像素单元、近端子像素单元的存储电容值的步骤具体包括：获取液晶面板的阵列基板一栅极信号线上远端子像素单元区域、中间子像素单元区域、近端子像素单元区域的平均存储电容值。
其中，所述液晶面板为主动矩阵驱动式液晶面板。具体地，每个子像素单元通过一个晶体管控制光线穿透率，并且将同一栅极信号线子像素单元连接起来，通电之后，子像素单元发生变化，构成特定的颜色，根据屏幕图像信息形成图像。
其中，所述子像素存储电容为有源矩阵显示中并联于像素以维持每个像素信号电压的电容器；此外所述电容指电感、电阻、芯片引脚等在高频情况下表现出来的电容特性。
402：调整远端子像素单元和近端子像素单元的存储电容值，使远端子像素单元和近端子像素单元电容耦合效应产生的压降与中间子像素单元电容耦合效应产生的压降相同。
在一个具体的实施例中，初始状态下，获取的远端子像素单元、中间子像素单元、近端子像素单元的存储电容值相同。因此，调整远端子像素单元和近端子像素单元的存储电容值的步骤具体是指：远端子像素单元的存储电容大于所述中间子像素单元的存储电容，所述中间子像素单元的存储电容大于所述近端子像素单元的存储电容，使远端子像素单元和近端子像素单元电容耦合效应产生的压降与中间子像素单元电容耦合效应产生的压降相同。
其中，所述电容耦合效应是由于面板上其它电压的变化，影响到显示电极电压的正确性，从近端到远端信号失真会越来越严重，但是由于面板驱动为栅极左右交替驱动，故两侧子像素单元亮度不均。
403：根据上述已调整的远端子像素单元和近端子像素单元的存储电容值，对应调整其它栅极信号线上远端子像素单元和近端子像素单元的存储电容值。
本实施例中，由于初始状态下，获取的远端子像素单元、中间子像素单元、近端子像素单元的存储电容值相同。因此，当某一根栅极信号线上远端子像素单元、中间子像素单元、近端子像素单元的存储电容值调整完毕后，其他栅极信号线上远端子像素单元、中间子像素单元、近端子像素单元的存储电容值可对应调整。在一个具体的实施例中，如图5所示，存储电容为公共极1(Cs on common)架构，公共极1架构中增加了一条额外的公用线3。由于存储电容与一般电容类似，直接获取同一栅极信号线4上远端子像素单元的存储电容、中间子像素单元的存储电容和近端子像素单元的存储电容，再对应调整其它栅极信号线上远端子像素单元和近端子像素单元的存储电容的介电常数，增大近端存储电容的介电常数，减小远端存储电容的介电常数。即，调整远端子像素单元和近端子像素单元的存储电容值，使远端子像素单元和近端子像素单元电容耦合效应产生的压降与中间子像素单元电容耦合效应产生的压降相同。根据上述已调整的远端子像素单元和近端子像素单元的介电常数，对应调整其它栅极信号线上远端子像素单元和近端子像素单元的介电常数，使其他栅极信号线上远端子像素单元和近端子像素单元电容耦合效应产生的压降相同。
在另一个具体的实施例中，如图6所示，存储电容为门极2(Cs on gate)架构。它的存储电容6受到栅极信号线7(gate line)与显示电极的影响，在显示图像的过程中存储的电量会产生波动，但波动时间对比与显示图像更新时间较短，所以只需要获取存储电容一段时间内的平均值，通过这个平均值大小，增大近端存储电容的介电常数，减小远端存储电容的介电常数。即，调整远端子像素单元和近端子像素单元的存储电容值，使远端子像素单元和近端子像素单元电容耦合效应产生的压降与中间子像素单元电容耦合效应产生的压降相同。根据上述已调整的远端子像素单元和近端子像素单元的介电常数，对应调整其它栅极信号线上远端子像素单元和近端子像素单元的介电常数，使其他栅极信号线上远端子像素单元和近端子像素单元电容耦合效应产生的压降相同。
以下，以一个具体的液晶面板详细说明上述方法的具体应用。参阅图7，图7是本发明一实施例液晶面板等效电路图，包括：多个子像素单元501，以及与每行子像素单元对应的栅极信号线503、公共电极线，与每列子像素单元对应的数据线504。所述栅极信号线503跟所述栅极驱动连接，所述数据线504外接源极驱动。本实施例中每一个TFT与Clc(滤波电容)以及Cst(存储电容)所并联的电容代表一个显示点501。其中，一个像素502由三个RGB三原色子像素单元构成。以一个1080*900分辨率的TFT-LCD为例，共需要1080*900*3个点501组合而成。
具体地，栅极驱动器送出波形数据信号，每一行的TFT打开，同一行的显示点根据波形数据信号通过源极驱动器充电到各自所需的电压，显示不同的灰阶。当这一行充好电时，栅极驱动器将电压关闭，然后打开下一行的栅极驱动器将电压如此依序下去，当充好了最后一行的显示点，便重新从第一行再开始充电，如此反复。
在一个具体实施例中，FHD(1080RGB*1920)解析度为例，液晶面板包括远端子像素单元c，远端子像素单元c上设有存储电容；中间子像素单元b，中间子像素单元b上设有存储电容；近端子像素单元a，近端子像素单元a设有存储电容。以下，详细描述改善其显示效果的过程：
首先获取所述液晶面板的阵列基板上同一栅极信号线上远端子像素单元c、中间子像素单元b、近端子像素单元a的存储电容值；其中所述前1～360列子像素单元为近端子像素区域，361～720列子像素单元为中间子像素区域，721～1080列子像素单元为远端子像素区域。假设选取了同一栅极信号线上1列子像素单元作为近端像素单元，1080列子像素单元为远端子像素单元，选取所选取的近端以及远端的中点处作为要选取的中间子像素单元，即540列作为中间子像素单元，为减少Feed-through现象导致液晶面板两侧发白现象，调整远端子像素单元c和近端子像素单元a的存储电容值，使远端子像素单元c和近端子像素单元a电容耦合效应产生的压降与中间子像素单元b电容耦合效应产生的压降相同，即使三处的Feed-through电压相同。此外，同一栅极信号线上其它近端子像素单元a和远端的子像素单元c也按照各自中间子像素单元调整，即依照540列调整。最后，根据调整的远端子像素单元c和近端子像素单元a的存储电容值，对应调整其它栅极信号线上远端子像素单元c和近端子像素单元a的存储电容值。调节完毕后，远端子像素单元c、近端子像素单元b电容耦合效应产生的压降与中间子像素单元a电容耦合效应产生的压降相同。
在其他实施例中，初始状态下，获取的远端子像素单元、中间子像素单元、近端子像素单元的存储电容值相同。因此，调整远端子像素单元和近端子像素单元的存储电容值的步骤具体是指：将远端子像素单元的存储电容替换为存储电容值更大的电容，将近端子像素单元的存储电容替换为存储电容值更小的电容，使远端子像素单元和近端子像素单元电容耦合效应产生的压降与中间子像素单元电容耦合效应产生的压降相同。即，在改善完毕后，液晶面板的远端子像素单元上存储电容的存储电容值大于中间子像素单元上存储电容的存储电容值，中间子像素单元上存储电容的存储电容值大于近端子像素单元上存储电容的存储电容值。
可选的，在其他实施例中，为简化改善液晶面板的方法，也可把所述栅极信号上子像素单元按照数目均分为三个区域，分别为远端子像素单元区域、中间子像素单元区域和近端子像素单元区域；根据361～720列中间区域的存储电容值为平均值作为基准(或任取少量子像素为基准)，调整远端子像素单元和近端子像素单元Feed-through电压。如此，调整后的显示面板中，远端子像素单元区域、近端子像素单元区域电容耦合效应产生的压降与中间子像素单元区域电容耦合效应产生的压降相同。
区别于现有技术，本发明通过改变子像素单元的存储电容，使远端子像素单元和近端子像素单元电容耦合效应产生的压降与中间子像素单元电容耦合效应产生的压降相同，有效改善了液晶面板框亮度不均或模组两侧发白现象，为用户提供更优质的体验液晶面板。
在其它实施例中，还可以通过改变液晶面板的源极驱动器的驱动力或源线输入的灰阶电压来调节液晶面板显示效果。
具体地，如图8所示，源极驱动器处理视频信号的基本流程如下，首先视频数据依次经过双向移位寄存器15的缓存，后输入到电位转换器14对视频信号的电压进行提升，提升后的电压打开D/A转换器13中对应的栅极；随之输出缓冲级12中生成的γ基准电压Vr1～Vr5和Vr6～Vr15经场效应管输入到输出缓冲级中，最后配合栅极驱动器信号将源信号输送至面板中的数据线上，最终在液晶面板上显示。
在一个具体实施例中，如图9所示，降低液晶面板两侧源线输入的灰阶电压，使液晶面板两侧的亮度与中间的亮度一致。具体地，减小两侧源线输出缓冲级16中OP放大器数目，降低液晶面板两侧部分驱动能力，使液晶面板两侧亮度降低，达到显示均一的目的。
在另一个具体实施例中，如图10所示，通过增加源线中间部分输出缓冲级17中OP放大器的面积，来提升面板中间部分驱动能力，达到显示均一的目的。在其他实施例中，还可以减少源线两侧部分输出缓冲级17中OP放大器中的面积，来降低面板两侧的驱动能力，达到显示均一的目的。
根据上述已调整的远端子像素单元和近端子像素单元的存储电容值，对应调整其它栅极信号线上远端子像素单元和近端子像素单元的存储电容值之后，如果发现液晶面板边缘发白现象没有明显改善，且调整当前液晶面板两侧源极驱动器也没有明显改善，说明当面液晶面板黑色矩阵位置的精度存在差异，根据当前液晶面板边缘状态，适当增加黑色矩阵薄膜覆盖宽度，使所述液晶面板两侧的亮度与中间一致。具体地，如图11所示，黑色矩阵18位于子像素单元19底部，用于防止子像素间的漏光。此时，黑色矩阵18宽度较窄，子像素单元19间相互作用，液晶面板显示异常，边缘区域的背景光直接透过子像素单元19区域，找到液晶面板两侧发白区域，增加对应的黑色矩阵18的宽度，使黑色矩阵18覆盖子像素单元19边缘区域。
可选的，上述实施例中，液晶面板为主动矩阵驱动式液晶面板。
上述任一所述的液晶面板均可以应用到液晶显示器、手机、智能手表等具有显示功能的设备中。
图12是本发明液晶面板一实施例电连接示意图，所述液晶面板包括数据输入电路701，数据处理电路702、驱动电路703以及显示电路704，其中，所述输入电路701、所述驱动电路703以及所述显示电路704分别与所述数据处理电路702连接，所述显示电路704还与所述驱动电路703相连接，所述数据输入电路701用于获取待显示图像特征数据，将图像数据转换为输入电信号；所述数据处理702电路用于将所述输入电信号转化为各个子像素对应栅极信号；根据所述栅极信号以及所述输入电信号获取所述液晶面板输出图像特征数据；根据所述特征数据以及显示面板的驱动电流输出图像。
如图13所示，图13是本发明液晶面板一实施例的结构示意图，主要包括：驱动电路801、液晶屏811、背光源816以及高压板817；其中，所述驱动电路801包括：列驱动数据IC802、PCB板803、行驱动IC804和视频信号供电805；所述液晶屏811包括：前偏振光板前玻璃板806、RGB滤色膜807、液晶层808、TFT矩阵809和后偏振光板前玻璃板810；所述背光源816包括：背光灯812、棱镜和扩散面813、光线引导层814和反射镜815。
所述显示面板外的主板电路通过排线与液晶面板接口相连。所述显示面板中还装有PCB板817，其上分布着液晶屏驱动电路801，主要设有视频信号供电805、行驱动IC804、列驱动数据IC等，如图8所示。由主板电路来的数据和时钟信号，经屏显IC电路处理后，分离出行驱动信号和列驱动信号，再分别送到液晶显示屏的行、列电极，驱动液晶显示屏显示出图像。
区别于现有技术，本发明通过改变子像素单元的存储电容，使远端子像素单元和近端子像素单元电容耦合效应产生的压降与中间子像素单元电容耦合效应产生的压降相同，有效改善了液晶面板框亮度不均或模组两侧发白现象，为用户提供更优质的体验。
以上所述仅为本发明的实施例，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)

1.一种改善液晶面板显示状态的方法，其特征在于，所述方法包括：
获取所述液晶面板的阵列基板一栅极信号线上远端子像素单元、中间子像素单元、近端子像素单元的存储电容值；
调整远端子像素单元和近端子像素单元的存储电容值，使远端子像素单元、近端子像素单元电容耦合效应产生的压降与中间子像素单元电容耦合效应产生的压降相同；
其中，所述存储电容值为用以维持每个像素信号电压的电容器的电容值；
所述调整远端子像素单元和近端子像素单元的存储电容值，使远端子像素单元和近端子像素单元电容耦合效应产生的压降与中间子像素单元电容耦合效应产生的压降相同的具体步骤包括：
所述远端子像素单元的存储电容的介电常数小于所述中间子像素单元的介电常数，所述中间子像素单元的介电常数小于所述近端子像素单元的介电常数，使远端子像素单元和近端子像素单元电容耦合效应产生的压降与中间子像素单元电容耦合效应产生的压降相同，获取所述液晶面板的阵列基板一栅极信号线上远端子像素单元区域、中间子像素单元区域、近端子像素单元区域的平均存储电容值；
根据上述已调整的远端子像素单元和近端子像素单元的存储电容值，对应调整其它栅极信号线上远端子像素单元和近端子像素单元的存储电容值。
2.根据权利要求1所述的一种改善液晶面板显示状态的方法，其特征在于，所述远端子像素单元、中间子像素单元、近端子像素单元沿同一栅极信号线划分为远端子像素单元区域、中间子像素单元区域和近端子像素单元区域。
3.根据权利要求1所述的一种改善液晶面板显示状态的方法，其特征在于，还包括：减小液晶面板源线两侧输出缓冲级中OP放大器数目，使液晶面板两侧的亮度与中间的亮度一致。
4.根据权利要求1所述的一种改善液晶面板显示状态的方法，其特征在于，还包括：增加源线中间部分输出缓冲级中OP放大器的面积，使液晶面板两侧的亮度与中间的亮度一致。
5.根据权利要求1所述的一种改善液晶面板显示状态的方法，其特征在于，还包括：增加黑色矩阵薄膜覆盖宽度，使液晶面板两侧的亮度与中间的亮度一致。
6.一种液晶面板，其特征在于，包括：
远端子像素单元，所述远端子像素单元上设有存储电容；
中间子像素单元，所述中间子像素单元上设有存储电容；
近端子像素单元，所述近端子像素单元上设有存储电容；
所述存储电容值为用以维持每个像素信号电压的电容器的电容值，所述远端子像素单元的存储电容的介电常数小于所述中间子像素单元的介电常数，所述中间子像素单元的介电常数小于所述近端子像素单元的介电常数，使远端子像素单元和近端子像素单元电容耦合效应产生的压降与中间子像素单元电容耦合效应产生的压降相同，获取所述液晶面板的阵列基板一栅极信号线上远端子像素单元区域、中间子像素单元区域、近端子像素单元区域的平均存储电容值。
7.一种液晶显示器，其特征在于：包括液晶面板，所述液晶面板使用权利要求1-5任一所述改善液晶面板显示状态的方法所制得。
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