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CN107728830A - 触控显示面板 - Google Patents

触控显示面板 Download PDF

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Publication number
CN107728830A
CN107728830A CN201710403871.1A CN201710403871A CN107728830A CN 107728830 A CN107728830 A CN 107728830A CN 201710403871 A CN201710403871 A CN 201710403871A CN 107728830 A CN107728830 A CN 107728830A
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Prior art keywords
touch
display panel
electrode
sensing electrode
control
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Inventor
翁裕复
林俊文
刘家麟
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Hongfujin Precision Industry Shenzhen Co Ltd
Hon Hai Precision Industry Co Ltd
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Hongfujin Precision Industry Shenzhen Co Ltd
Hon Hai Precision Industry Co Ltd
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Publication of CN107728830A publication Critical patent/CN107728830A/zh
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    • G02F1/00Devices 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
    • G02F1/01Devices 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 
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    • G02F1/00Devices 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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    • G02F1/1368Active matrix addressed cells in which the switching element is a three-electrode device
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    • G06F3/03Arrangements for converting the position or the displacement of a member into a coded form
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    • G06F3/044Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means by capacitive means
    • G06F3/0445Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means by capacitive means using two or more layers of sensing electrodes, e.g. using two layers of electrodes separated by a dielectric layer
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    • G06F3/0446Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means by capacitive means using a grid-like structure of electrodes in at least two directions, e.g. using row and column electrodes
    • GPHYSICS
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    • G02F1/00Devices 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
    • G02F1/01Devices 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 
    • G02F1/13Devices 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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    • G02F1/133388Constructional arrangements; Manufacturing methods with constructional differences between the display region and the peripheral region
    • GPHYSICS
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    • G06F2203/041Indexing scheme relating to G06F3/041 - G06F3/045
    • G06F2203/04103Manufacturing, i.e. details related to manufacturing processes specially suited for touch sensitive devices
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    • G06F2203/04105Pressure sensors for measuring the pressure or force exerted on the touch surface without providing the touch position

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Abstract

一种触控显示面板,其设置有触控感测电极和压力感测电极,该触控显示面板定义有显示区及围绕该显示区的边框区,该触控感测电极对应显示区设置,该压力感测电极包括层叠设置且相互绝缘的第一压力感测电极和第二压力感测电极;该第一压力感测电极包括间隔排布的多个子电极,且该多个子电极围绕该显示区;该第二压力感测电极围绕该显示区;该多个子电极与该第二压力感测电极配合构成电容式压力感测结构。所述触控显示面板具有良好的触控感测和压力感测功能。

Description

触控显示面板
技术领域
本发明涉及一种显示面板,尤其涉及一种具有触控感测功能的触控显示面板。
背景技术
现有的触控显示装置通常设置有触控电极以进行触控感测。该触控显示装置既是呈现图像的输出装置,也是接收使用者的触摸指令的输入装置。当手指触摸显示装置的特定区域时,触摸位置被感测到并实现特定的操作功能。然而,现有的触控显示装置通常没有感测触摸压力的功能。
发明内容
鉴于以上内容,有必要提供一种兼具有良好的触控感测和显示功能的触控显示面板。
一种触控显示面板,其包括层叠设置的彩色滤光基板、液晶层、薄膜晶体管阵列基板,该触控显示面板设置有触控感测电极,该触控显示面板定义有显示区及围绕该显示区的边框区,该触控感测电极对应显示区设置,该触控显示面板设置有压力感测电极,该压力感测电极对应边框区设置;该压力感测电极包括层叠设置且相互绝缘的第一压力感测电极和第二压力感测电极;该第一压力感测电极包括间隔排布的多个子电极,且该多个子电极围绕该显示区;该第二压力感测电极围绕该显示区;该多个子电极与该第二压力感测电极配合构成电容式压力感测结构。
所述触控显示面板具有良好的触控感测和压力感测功能。
附图说明
图1是本发明较佳实施方式的显示面板的示意图。
图2是本发明第一实施方式的显示面板的分解示意图。
图3是本发明第一实施方式的显示面板的剖面示意图。
图4是本发明第二实施方式的显示面板的分解示意图。
图5是本发明第二实施方式的显示面板的剖面示意图。
图6是本发明第三实施方式的显示面板的分解示意图。
图7是本发明第三实施方式的显示面板的剖面示意图。
主要元件符号说明
显示面板 100、200、300
盖板 310
显示区 140
边框区 160
彩色滤光基板 110
薄膜晶体管阵列基板 130
触控感测电极 30
压力感测电极 50
第一触控电极 31
第二触控电极 33
第一压力感测电极 51
第二压力感测电极 53
子电极 511
触摸控制电路 60
介电层 210
光学透明胶 80
如下具体实施方式将结合上述附图进一步说明本发明。
具体实施方式
请一并参考图1至图3,图1是本发明第一实施方式的显示面板100的组装示意图,图2是图1的显示面板100的分解示意图,图2省略了液晶层,图3是图1的显示面板100的剖面示意图。
本实施例中,该显示面板100为内嵌式触控液晶显示面板。该显示面板100包括一彩色滤光基板110、一薄膜晶体管阵列基板130以及设置在该彩色滤光基板110与该薄膜晶体管阵列基板130之间的液晶层150。其中,该薄膜晶体管阵列基板130为常规的薄膜晶体管阵列基板,其包括基底及形成于基底上的薄膜晶体管阵列。彩色滤光基板110为常规的彩色滤光基板,其包括基底及形成与基底上的彩色滤光层。该显示面板100定义有显示区140及围绕该显示区140的边框区160。
该薄膜晶体管阵列基板130与该彩色滤光基板110上设置有触控感测电极30用于触摸位置感测和压力感测电极50用于触摸压力感测。该触控感测电极30对应显示区140设置,该压力感测电极50对应边框区160设置。
该触控感测电极30包括多个第一触控电极31和多个第二触控电极33。该多个第一触控电极31形成在该薄膜晶体管阵列基板130朝向该彩色滤光基板110的表面。该多个第二触控电极33形成在该彩色滤光基板110远离该薄膜晶体管阵列基板130的表面。所述多个第一触控电极31间隔设置,每一个第一触控电极31呈长条状且沿第一方向延伸,即每一个第一触控电极31的长径方向为第一方向。所述多个第二触控电极33间隔设置,每一个第二触控电极33呈U型状,即每一个第二触控电极33包括相对设置的两个延伸部(图未示)及连接所述两个延伸部之间的连接部(图未示),且每一个延伸部沿第二方向延伸,即每一个延伸部的长径方向为第二方向。该第一方向与第二方向为不同的方向。本实施例中,第一方向大致垂直于第二方向。该第一触控电极31为触控驱动电极用以传送驱动信号,该第二触控电极33用以接收触控感测信号。本实施例中,该第一触控电极31复用为该显示面板100的公共电极,以与像素电极(图未示)配合以驱动液晶层150中的液晶旋转。
该压力感测电极50包括第一压力感测电极51和第二压力感测电极53。该第一压力感测电极51形成在该薄膜晶体管阵列基板130朝向该彩色滤光基板110的表面,且位于该多个第一触控电极31的周边。该多个第一触控电极31与该第一压力感测电极51为同层设置,即该多个第一触控电极31与该第一压力感测电极51采用同一导电材料层经同一图案化制程同时形成。该多个第一触控电极31与该第一压力感测电极51的材质可为透明导电材料,如氧化铟锡。
该第二压力感测电极53形成在该彩色滤光基板110远离该薄膜晶体管阵列基板130的表面,且围绕该多个第二触控电极33。该多个第二触控电极33与该第二压力感测电极53为同层设置,即该多个第二触控电极33与该第二压力感测电极53采用同一导电材料层经同一图案化制程同时形成。该多个第二触控电极33与该第二压力感测电极53的材质可为透明导电材料,如氧化铟锡。
该第一压力感测电极51的位置与该第二压力感测电极53的位置正对。优选的,该第一压力感测电极51在该彩色滤光基板110上的投影与该第二压力感测电极53大致重合。
本实施例中,该第一压力感测电极51包括多个间隔排布的子电极511,该多个子电极511围绕所述多个第一触控电极31且对应边框区160设置。该第二压力感测电极53为连续的,其沿该多个第二触控电极33周边延伸并包围该多个第二触控电极33。该第二压力感测电极53可延伸形成U型、环形,或其他的形状。本实施例中,该第二压力感测电极53为U型的。本实施例中,每个子电极511为长条状,其沿所述多个第二触控电极33的周边延伸长度大于4毫米,其延伸宽度(垂直延伸长度方向)大于100微米。可以理解的,所述每个子电极511的延伸长度还可根据需要设置的子电极511的数目进行调整。可以理解的,所述每个子电极511的形状也可根据需要进行调整,不限于长条状。
该显示面板100对应边框区160设置有触摸控制电路60。所述触控感测电极30通过多条走线(图未示)电性连接该触摸控制电路60。具体可为每个第一触控电极31和每个第二触控电极33分别通过一条走线电性连接该触摸控制电路60。当手指等触摸该显示面板100时,该触摸处对应的第二触控电极33的电信号发生改变,该电信号的改变通过走线传输到触摸控制电路60,从而使触摸位置得以侦测到。
本实施例中,该第二压力感测电极53接地设置。该第一压力感测电极51和该第二压力感测电极53配合形成电容式压力感测结构。当手指等按压该显示面板100时,该第一压力感测电极51的子电极511和该第二压力感测电极53之间的间距发生变化,使子电极511和该第二压力感测电极53之间的电容值发生改变,进而根据电容值的变化换算得到触摸压力的大小。
请一并参考图1、图4及图5,图4是本发明第二实施方式的显示面板200的分解示意图,图4中省略了液晶层,图5是图1的显示面板200的剖面示意图。
本实施例中,该显示面板200为内嵌式触控液晶显示面板。该显示面板100包括层叠设置的一介电层210、一彩色滤光基板110、一液晶层150、一薄膜晶体管阵列基板130。其中,该薄膜晶体管阵列基板130为常规的薄膜晶体管阵列基板,其包括基底及形成于基底上的薄膜晶体管。彩色滤光基板110为常规的彩色滤光基板,其包括基底及形成与基底上的彩色滤光层。该显示面板200定义有显示区140及围绕该显示区140的边框区160。该介电层210为弹性可形变的,且为透明的。
该显示面板20设置有触控感测电极30用于触摸位置感测和压力感测电极50用于触摸压力感测。该触控感测电极30对应显示区140设置,该压力感测电极50对应边框区160设置。
该触控感测电极30包括多个第一触控电极31和多个第二触控电极33。该多个第一触控电极31形成在该薄膜晶体管阵列基板130朝向该彩色滤光基板110的表面。该多个第二触控电极33形成在该介电层210远离该薄膜晶体管阵列基板130的表面。该多个第一触控电极31间隔设置,每一个第一触控电极31呈长条状且沿第一方向延伸。所述多个第二触控电极33间隔设置,每一个第二触控电极33呈U型状,即每一个第二触控电极33包括相对设置的两个延伸部(图未示)及连接所述两个延伸部之间的连接部(图未示),且每一个延伸部沿第二方向延伸,即每一个延伸部的长径方向为第二方向。该第一方向与第二方向为不同的方向。本实施例中,第一方向大致垂直于第二方向。该第一触控电极31为触控驱动电极用以传送驱动信号,该第二触控电极33为用以接收触控感测信号。本实施例中,该第一触控电极31复用为显示面板200的公共电极。
该压力感测电极50包括第一压力感测电极51和第二压力感测电极53。该第一压力感测电极51形成在该彩色滤光基板110远离该薄膜晶体管阵列基板130的表面上,且位于该彩色滤光基板110的表面的邻近周缘处。
该第二压力感测电极53形成在该介电层210远离该薄膜晶体管阵列基板130的表面,且围绕该多个第二触控电极33。该多个第二触控电极33与该第二压力感测电极53为同层设置,即该多个第二触控电极33与该第二压力感测电极53采用同一导电材料层经同一图案化制程同时形成。该多个第二触控电极33与该第二压力感测电极53的材质可为透明导电材料,如氧化铟锡。
本实施例中,该第一压力感测电极51包括多个间隔排布的子电极511,该多个子电极511沿该彩色滤光基板110的邻近周缘处延伸。该第二压力感测电极53为连续的,其沿该多个第二触控电极33周边延伸并包围该多个第二触控电极33。该第二压力感测电极53可延伸形成U型、环形,或其他的形状。本实施例中,该第二压力感测电极53为环形的。本实施例中,每个子电极511为长条状,其沿该彩色滤光基板110的邻近周缘处延伸长度大于4毫米,其延伸宽度(垂直延伸长度方向)大于100微米。可以理解的,所述每个子电极511的延伸长度还可根据需要设置的子电极511的数目进行调整。可以理解的,所述每个子电极511的形状也可根据需要进行调整,不限于长条状。
该显示面板100对应边框区160设置有触摸控制电路60。所述触控感测电极30通过多条走线(图未示)电性连接该触摸控制电路60。具体可为每个第一触控电极31和每个第二触控电极33分别通过一条走线电性连接该触摸控制电路60。当手指等触摸该显示面板100时,该触摸处对应的第二触控电极33的电信号发生改变,该电信号的改变通过走线传输到触摸控制电路60,从而使触摸位置得以侦测到。
本实施例中,该第二压力感测电极53接地设置。该第一压力感测电极51和该第二压力感测电极53配合形成电容式压力感测结构。当手指等按压该显示面板100时,该第一压力感测电极51的子电极511和该第二压力感测电极53之间的间距发生变化,使子电极511和该第二压力感测电极53之间的电容值发生改变,进而根据电容值的变化换算得到触摸压力的大小。
请一并参考图1、图6及图7,图6是本发明第三实施方式的显示面板200的分解示意图,图6省略了液晶层,图7是图1的显示面板300的剖面示意图。
本实施例中,该显示面板300为内嵌式触控液晶显示面板。该显示面板300的结构与第一实施方式的显示面板100的结构基本相同,不同的是:该显示面板100还包括一盖板310,该盖板310位于该彩色滤光基板110远离该薄膜晶体管阵列基板130的一侧;第一实施例中的第一压力感测电极51形成在该薄膜晶体管阵列基板130朝向该彩色滤光基板110的表面,且位于该多个第一触控电极31的周边;而本实施例中,该第一压力感测电极51形成在该盖板310上。
本实施例中,该第一压力感测电极51形成在该盖板310远离或靠近该薄膜晶体管阵列基板130的表面,且该第一压力感测电极51的多个子电极511沿该盖板310的邻近周缘处延伸。该盖板310与该彩色滤光基板110通过光学透明胶80连接。
以上实施方式仅用以说明本发明的技术方案而非限制,尽管参照较佳实施方式对本发明进行了详细说明,本领域的普通技术人员应当理解,可以对本发明的技术方案进行修改或等同替换,而不脱离本发明技术方案的精神和范围。

Claims (10)

1.一种触控显示面板,其包括层叠设置的彩色滤光基板、液晶层、薄膜晶体管阵列基板,该触控显示面板设置有触控感测电极,该触控显示面板定义有显示区及围绕该显示区的边框区,该触控感测电极对应显示区设置,特征在于:该触控显示面板设置有压力感测电极,该压力感测电极对应边框区设置;该压力感测电极包括层叠设置且相互绝缘的第一压力感测电极和第二压力感测电极;该第一压力感测电极包括间隔排布的多个子电极,且该多个子电极围绕该显示区;该第二压力感测电极围绕该显示区;该多个子电极与该第二压力感测电极配合构成电容式压力感测结构。
2.如权利要求1所述的触控显示面板,其特征在于:该触控感测电极包括多个第一触控电极和多个第二触控电极,每一个第一触控电极与每一个第二触控电极的延伸方向不同,所述多个第一触控电极与所述多个第二触控电极层叠设置且相互绝缘。
3.如权利要求2所述的触控显示面板,其特征在于:所述多个第一触控电极形成在该薄膜晶体管阵列基板朝向该彩色滤光基板的表面;所述多个第二触控电极形成在该彩色滤光基板远离该薄膜晶体管阵列基板的表面。
4.如权利要求3所述的触控显示面板,其特征在于:该第一压力感测电极形成在该薄膜晶体管阵列基板朝向该彩色滤光基板的表面,且围绕所述多个第一触控电极;该第二压力感测电极形成在该彩色滤光基板远离该薄膜晶体管阵列基板的表面,且围绕所述多个第二触控电极。
5.如权利要求3所述的触控显示面板,其特征在于:该触控显示面板还包括一透明的盖板,该盖板设置在该彩色滤光基板远离该薄膜晶体管阵列基板的一侧,该第一压力感测电极形成在该盖板上;该第二压力感测电极形成在该彩色滤光基板远离该薄膜晶体管阵列基板的表面,且围绕所述多个第二触控电极。
6.如权利要求2所述的触控显示面板,其特征在于:该触控显示面板还包括一介电层,该介电层设置在该彩色滤光基板远离该薄膜晶体管阵列基板的一侧,所述多个第一触控电极形成在该薄膜晶体管阵列基板朝向该彩色滤光基板的表面;所述多个第二触控电极形成在该介电层远离该薄膜晶体管阵列基板的表面。
7.如权利要求6所述的触控显示面板,其特征在于:该第一压力感测电极形成在该彩色滤光基板远离该薄膜晶体管阵列基板的表面;该第二压力感测电极形成在该介电层远离该薄膜晶体管阵列基板的表面,且围绕所述多个第二触控电极。
8.如权利要求7所述的触控显示面板,其特征在于:该介电层为弹性可形变的,且为透明的。
9.如权利要求2所述的触控显示面板,其特征在于:所述多个第一触控电极复用为该触控显示面板的公共电极。
10.如权利要求1所述的触控显示面板,其特征在于:该第二压力感测电极接地设置。
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US20180046278A1 (en) 2018-02-15

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