CN105353550B - 液晶显示装置 - Google Patents

液晶显示装置 Download PDF

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CN105353550B
CN105353550B CN201510880918.4A CN201510880918A CN105353550B CN 105353550 B CN105353550 B CN 105353550B CN 201510880918 A CN201510880918 A CN 201510880918A CN 105353550 B CN105353550 B CN 105353550B
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sensing unit
dummy line
liquid crystal
display device
crystal display
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CN105353550A (zh
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陈归
薛景峰
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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
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    • 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
    • G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
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    • G06F3/03—Arrangements for converting the position or the displacement of a member into a coded form
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Abstract

一种液晶显示装置，包括:多个传感单元，排列成传感单元的一阵列；多条虚拟线，每条设置于两列的多个所述传感单元之间，其中所述各虚拟线具有多个虚拟线单元,每一虚拟线单元与一传感单元一对一对应，幷电性连接所述一传感单元。

Description

液晶显示装置
技术领域
本发明涉及显示技术领域，特别涉及一种液晶触控显示装置。
背景技术
低温多晶硅液晶显示器(low temperature poly-silicon thin filmtransistor liquid crystal display,LTPS TFT-LCD)以其高迁移率，良好的充电能力而备受关注，但其工艺复杂，制程控制极为严格。近年来，基于LTPS的内嵌式触控面板(In-cell touch panel,In-cell TP)也越来越受到人们与设计者们的关注。然而由于较多的虚拟线(Dummy Line)，导致其集成电路(integrated circuit,IC) 端的端口较为复杂，端口数也繁多，这将大大增加了IC的负载，同时也增加了设计的复杂程度，因此优化简单的虚拟线(Dummy Line)是目前技术上需要达成的目标。
图1是现有技术中低温多晶硅液晶显示器10的结构示意图。传感单元 20(或称触控单元、sensing units或sensor pad)一般采用金属层作为金属走线，在相邻两列传感单元之间插入一根虚拟线30(Dummy Line)，并与相邻右侧的第一个传感单元20相连接，即将虚拟线30与右侧相邻的传感单元20 相连，同时虚拟线30的末端，即集成电路(integratedcircuit,IC)对侧端的传感单元处于断开状态。所述虚拟线的配置存在着以下缺陷：(1)由于虚拟线由第一个传感单元20引出，故第一个传感单元20的电阻电容负载(Resistancecapacitance loading,RC Loading)较其他传感单元大，进而影响第一个传感单元的灵敏度；(2)在显像功能时，该虚拟线30与公共驱动信号电位(Vcom) 连接，产生防串扰信号(anti-crosstalk signal)的作用；在显像功能时，虚拟线由第一个传感单元20引出，该虚拟线会对其旁边的传感单元20产生干扰。
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显示装置，其能提高显示面板的触控灵敏度。为解决上述问题，本发明的技术方案如下：
一种液晶显示装置，所述液晶显示装置包括:多个传感单元，排列成传感单元的一阵列；多条虚拟线，每条设置于两列的多个所述传感单元之间，其中所述各虚拟线具有多个虚拟线单元,每一虚拟线单元与一传感单元一对一对应，并 电性连接所述一传感单元。
根据本发明的一个实施例的进一步特征，所述每一虚拟线单元与所述一传感单元的一开始端、一中间段与一末端电性连接。
根据本发明的一个实施例的进一步特征，所述每一虚拟线单元配置为一E 字型结构，以与所述一传感单元的所述开始端、所述中间段与所述末端电性连接。
根据本发明的一个实施例的进一步特征，所述传感单元和虚拟线为透明导电材料制成。
根据本发明的一个实施例的进一步特征，所述传感单元为透明导电材料制成，所述传感单元与一公共驱动信号电位连接。
根据本发明的一个实施例的进一步特征，在显像功能时，所述虚拟线和所述传感单元位于所述公共驱动信号电位。
一种低温多晶硅液晶显示装置，所述低温多晶硅液晶显示装置包括:多个传感单元，排列成传感单元的一阵列；多条虚拟线，每条设置于两列的多个所述传感单元之间，其中所述各虚拟线具有多个虚拟线单元,每一虚拟线单元与一传感单元一对一对应，并 电性连接所述一传感单元的一开始端、一中间段与一末端电性连接。
根据本发明的一个实施例的进一步特征，所述每一虚拟线单元配置为一E 字型结构，以与所述一传感单元的所述开始端、所述中间段与所述末端电性连接。
根据本发明的一个实施例的进一步特征，所述传感单元和虚拟线为透明导电材料制成。
根据本发明的一个实施例的进一步特征，所述传感单元为透明导电材料制成，所述传感单元与一公共驱动信号电位连接。
根据本发明的一个实施例的进一步特征，在显像功能时，所述虚拟线和所述传感单元位于所述公共驱动信号电位。
相较于现有虚拟线的配置(如图1所示)，本发明在显示装置运作时，由于虚拟线不仅是由第一个传感单元引出，而是各虚拟线单元由其对应的传感单元引出，因此各传感单元的电阻电容负载(Resistance capacitance loading,RC Loading)接相近，而提升传感单元的灵敏度；另外，将虚拟线分段虚拟线单元后，分别一对一对应并连接到相邻的传感单元，降低显像时，虚拟线单元对其他传感单元的信号串扰，同时维持整个面板的电场均一性，从而可以有效地提高显示装置的触控灵敏度。
附图说明
本文所述的本发明，仅作为示例，参考附图，其中：
图1为现有技术中低温多晶硅液晶显示器的结构示意图；
图2为根据本发明的一第一实施例的液晶显示装置的结构示意图；及
图3为根据本发明的一第二实施例的液晶显示装置的结构示意图。
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“一个或多个”，除非另外指定或从上下文可以清楚确定单数形式。
本发明的液晶显示装置可以是低温多晶硅液晶显示器(low temperature poly-silicon thin film transistor liquid crystal display,LTPS TFT-LCD)。
请参考图2，其为根据本发明的一第一实施例的液晶显示装置的结构示意图。
本实施例的液晶显示装置110包括:多个传感单元120，以及多条虚拟线 130。所述多个传感单元120排列成传感单元120的一阵列，所述多条虚拟线 130，每条设置于两列的多个所述传感单元120之间。所述各虚拟线130被分段成为多个虚拟线单元131,每一虚拟线单元131与一传感单元120一对一对应，并 与右侧相邻的所述一传感单元120电性连接。其中所述每一虚拟线单元配置为一E字型结构与所述一传感单元120的一开始端、一中间段与一末端电性连接。所述传感单元120和虚拟线130为透明导电材料(底置氧化铟钖，bottomindium tin oxide,bottom ITO)制成。且所述传感单元与一公共驱动信号电位(Vcom)连接。因此在显像功能时，所述虚拟线130和所述传感单元 120位于所述公共驱动信号电位。
此外提供另一种实施例，请参考图3，其为根据本发明的一第二实施例的液晶显示装置的结构示意图。
本实施例的液晶显示装置210包括:多个传感单元220，以及多条虚拟线 230。所述多个传感单元220排列成传感单元220的一阵列，所述多条虚拟线230，每条设置于两列的多个所述传感单元220之间。所述各虚拟线130被分段成为多个虚拟线单元231,每一虚拟线单元231与一传感单元220一对一对应，并 与左侧相邻的所述一传感单元220电性连接。其中所述每一虚拟线单元配置为一E字型结构与所述一传感单元220的一开始端、一中间段与一末端电性连接。所述传感单元220和虚拟线230为透明导电材料(底置氧化铟钖，bottomindium tin oxide,bottom ITO)制成。且所述传感单元与一公共驱动信号电位(Vcom)连接。因此在显像功能时，所述虚拟线230和所述传感单元220位于所述公共驱动信号电位。因此在此实施例中，传感单元220设置在虚拟线单元231的左侧，也可实现如同第一实施例的触控显示功能。
相较于现有虚拟线的配置(如图1所示)，本发明在显示装置运作时，由于虚拟线不仅是由第一个传感单元引出，而是各虚拟线单元由其对应的传感单元引出，因此各传感单元的电阻电容负载(Resistance capacitance loading, RC Loading)接相近，而提升传感单元的灵敏度；另外，将虚拟线分段虚拟线单元后，分别一对一对应并 连接到相邻的传感单元，降低显像功能时，虚拟线单元对其他传感单元的信号串扰，同时维持整个面板的电场均一性，从而可以有效地提高显示装置的触控灵敏度。
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 (8)

1.一种液晶显示装置，其特征在于：所述液晶显示装置包括:
多个传感单元，排列成传感单元的一阵列；
多条虚拟线，每条设置于两列的多个所述传感单元之间，其中所述各虚拟线具有多个虚拟线单元,每一虚拟线单元与一传感单元一对一对应，并 电性连接所述一传感单元；
所述每一虚拟线单元配置为一E字型结构，以与所述一传感单元的一开始端、一中间段与一末端电性连接。
2.如权利要求1所述的液晶显示装置，其特征在于：所述传感单元和虚拟线为透明导电材料制成。
3.如权利要求1所述的液晶显示装置，其特征在于：所述传感单元为透明导电材料制成，所述传感单元与一公共驱动信号电位连接。
4.如权利要求3所述的液晶显示装置，其特征在于：在显像功能时，所述虚拟线和所述传感单元位于所述公共驱动信号电位。
5.一种低温多晶硅液晶显示装置，其特征在于：所述低温多晶硅液晶显示装置包括:
多个传感单元，排列成传感单元的一阵列；
多条虚拟线，每条设置于两列的多个所述传感单元之间，其中所述各虚拟线具有多个虚拟线单元,所述每一虚拟线单元配置为一E字型结构，以与一传感单元一对一对应，并 电性连接所述一传感单元的一开始端、一中间段与一末端电性连接。
6.如权利要求5所述的低温多晶硅液晶显示装置，其特征在于：所述传感单元和虚拟线为透明导电材料制成。
7.如权利要求5所述的低温多晶硅液晶显示装置，其特征在于：所述传感单元为透明导电材料制成，所述传感单元与一公共驱动信号电位连接。
8.如权利要求7所述的低温多晶硅液晶显示装置，其特征在于：在显像功能时，所述虚拟线和所述传感单元位于所述公共驱动信号电位。
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