WO2019029376A1 - 触控面板、其制作方法、触摸屏及显示装置 - Google Patents

触控面板、其制作方法、触摸屏及显示装置 Download PDF

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Publication number
WO2019029376A1
WO2019029376A1 PCT/CN2018/097204 CN2018097204W WO2019029376A1 WO 2019029376 A1 WO2019029376 A1 WO 2019029376A1 CN 2018097204 W CN2018097204 W CN 2018097204W WO 2019029376 A1 WO2019029376 A1 WO 2019029376A1
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Prior art keywords
touch
sub
electrodes
sensing
electrode
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PCT/CN2018/097204
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English (en)
French (fr)
Inventor
龚庆
张昌
吴建君
赵必玉
张德华
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京东方科技集团股份有限公司
成都京东方光电科技有限公司
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Priority to US16/338,844 priority Critical patent/US11320949B2/en
Publication of WO2019029376A1 publication Critical patent/WO2019029376A1/zh

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    • GPHYSICS
    • G06COMPUTING; CALCULATING OR COUNTING
    • G06FELECTRIC DIGITAL DATA PROCESSING
    • G06F3/00Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
    • G06F3/01Input arrangements or combined input and output arrangements for interaction between user and computer
    • G06F3/03Arrangements for converting the position or the displacement of a member into a coded form
    • G06F3/041Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means
    • G06F3/0412Digitisers structurally integrated in a display
    • GPHYSICS
    • G06COMPUTING; CALCULATING OR COUNTING
    • G06FELECTRIC DIGITAL DATA PROCESSING
    • G06F3/00Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
    • G06F3/01Input arrangements or combined input and output arrangements for interaction between user and computer
    • G06F3/03Arrangements for converting the position or the displacement of a member into a coded form
    • G06F3/041Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means
    • G06F3/044Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means by capacitive means
    • 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
    • G06COMPUTING; CALCULATING OR COUNTING
    • G06FELECTRIC DIGITAL DATA PROCESSING
    • G06F3/00Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
    • G06F3/01Input arrangements or combined input and output arrangements for interaction between user and computer
    • G06F3/03Arrangements for converting the position or the displacement of a member into a coded form
    • G06F3/041Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means
    • G06F3/044Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means by capacitive means
    • G06F3/0443Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means by capacitive means using a single layer of sensing electrodes
    • GPHYSICS
    • G06COMPUTING; CALCULATING OR COUNTING
    • G06FELECTRIC DIGITAL DATA PROCESSING
    • G06F3/00Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
    • G06F3/01Input arrangements or combined input and output arrangements for interaction between user and computer
    • G06F3/03Arrangements for converting the position or the displacement of a member into a coded form
    • G06F3/041Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means
    • G06F3/044Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means by capacitive means
    • G06F3/0448Details of the electrode shape, e.g. for enhancing the detection of touches, for generating specific electric field shapes, for enhancing display quality
    • GPHYSICS
    • G06COMPUTING; CALCULATING OR COUNTING
    • G06FELECTRIC DIGITAL DATA PROCESSING
    • G06F2203/00Indexing scheme relating to G06F3/00 - G06F3/048
    • G06F2203/041Indexing scheme relating to G06F3/041 - G06F3/045
    • G06F2203/04103Manufacturing, i.e. details related to manufacturing processes specially suited for touch sensitive devices
    • GPHYSICS
    • G06COMPUTING; CALCULATING OR COUNTING
    • G06FELECTRIC DIGITAL DATA PROCESSING
    • G06F2203/00Indexing scheme relating to G06F3/00 - G06F3/048
    • G06F2203/041Indexing scheme relating to G06F3/041 - G06F3/045
    • G06F2203/04111Cross over in capacitive digitiser, i.e. details of structures for connecting electrodes of the sensing pattern where the connections cross each other, e.g. bridge structures comprising an insulating layer, or vias through substrate

Definitions

  • Embodiments of the present disclosure relate to a touch panel, a method of fabricating the same, a touch screen, and a display device.
  • touch screen panels have gradually spread throughout people's lives, and the market size of corresponding touch panels is also growing.
  • manufacturers of touch panels have simplified production processes.
  • the goal of reducing production costs and improving performance is to continuously improve the production technology level of touch panels.
  • At least one embodiment of the present disclosure provides a touch panel including: a touch electrode layer having a plurality of touch units arranged in a matrix; wherein each of the touch units includes a touch with a complementary shape a driving electrode and a touch sensing electrode; the touch sensing electrodes of the two adjacent touch units are connected, and the touch driving electrodes of the two adjacent touch units are connected; The edge of the touch driving electrode and the touch sensing electrode are curved.
  • the number of fluctuations of the curve is greater than or equal to 1; the number of changes in the curvature of the curve is greater than or equal to 1.
  • the curvature of the curve varies from 90 to 180 degrees.
  • each of the touch driving electrodes includes two sub-driving electrodes that are axisymmetric; two of the sub driving electrodes are connected by at least one connecting bridge.
  • each of the touch sensing electrodes includes two sub sensing electrodes that are axisymmetric; two of the sub sensing electrodes are connected by at least one connecting bridge.
  • each of the touch units includes four of the connection bridges; wherein two of the sub drive electrodes are connected by two of the connection bridges, and two of the connection bridges
  • the column direction is axisymmetric; and the two sub-sense electrodes are connected by two of the connecting bridges, and the two connecting bridges are axisymmetric in the row direction.
  • the touch unit further includes: two sub floating electrodes in an axis symmetry; wherein the sub floating electrode is located at the sub driving electrode and the sub sensing electrode are complementary An edge and insulated from the sub-drive electrode and the sub-sensing electrode.
  • each of the touch driving electrodes includes two sub-driving electrodes that are point-symmetric; the two sub-driving electrodes are connected by at least one connecting bridge.
  • each of the touch sensing electrodes includes two sub sensing electrodes that are point symmetric; the two sub sensing electrodes are connected by at least one connecting bridge.
  • each of the touch units includes four of the connection bridges; wherein two of the sub-drive electrodes are connected by two of the connection bridges, and the two connection bridges are Point symmetry; and two of the sub-sensing electrodes are connected by two of the connecting bridges, and the two connecting bridges are point-symmetric.
  • the touch unit further includes: two sub floating electrodes in point symmetry; wherein the sub floating electrode is located at an edge complementary to the sub driving electrode and the sub sensing electrode And insulated from the sub-drive electrode and the sub-sensing electrode.
  • each of the connecting bridges is evenly arranged in the touch unit.
  • At least one embodiment of the present disclosure provides a touch screen including the above touch panel.
  • At least one embodiment of the present disclosure provides a display device including the above touch screen.
  • At least one embodiment of the present disclosure provides a method of fabricating the touch panel, including: forming a touch electrode layer on a substrate; wherein the touch electrode layer has a plurality of touches arranged in a matrix
  • Each of the touch units includes a touch driving electrode and a touch sensing electrode in a complementary shape; the touch sensing electrodes of the two adjacent touch units are connected, and the two adjacent touches are adjacent to each other.
  • the touch driving electrodes of the unit are connected to each other; the edges of the touch driving electrodes of the touch unit and the touch sensing electrodes are curved.
  • forming the touch electrode layer on the base substrate includes: forming a plurality of the touch driving electrodes and the plurality of touch sensing electrodes on the base substrate; wherein each of the The touch driving electrode includes two sub-driving electrodes that are axisymmetric, each of the touch sensing electrodes includes two sub sensing electrodes that are axisymmetric; or each of the touch driving electrodes includes two sub-symmetric electrodes.
  • Each of the touch sensing electrodes includes two sub-sensing electrodes that are point-symmetric; a plurality of connecting bridges are formed on the base substrate on which the touch driving electrodes and the touch sensing electrodes are formed; Each of the connecting bridges is configured to connect two of the sub-drive electrodes or two of the sub-sensing electrodes that are symmetric with each other in each of the touch units.
  • the method further includes: forming a plurality of floating electrodes on a base substrate on which the plurality of the touch driving electrodes and the plurality of touch sensing electrodes are formed;
  • Each of the floating electrodes includes two sub floating electrodes that are axisymmetric or point symmetric; the sub floating electrodes are located at edges complementary to the sub driving electrodes and the sub sensing electrodes, and the sub driving electrodes
  • the sub-sensing electrodes are insulated from each other.
  • FIG. 1A and 1B are schematic structural views of a touch panel according to an embodiment of the present disclosure
  • FIGS. 2A and 2B are schematic structural views of a touch unit according to an embodiment of the present disclosure, respectively.
  • touch screens are arranged in many ways, including: one-piece (OGS), one-cell (On Cell), in-cell (In Cell) and other touch structures, of which On Cell
  • OGS one-piece
  • On Cell On Cell
  • On Cell technology is currently divided into two major categories: single-layer structure production panels and multi-layer structure production panels.
  • the multi-layer structure production panel has higher touch precision than the single-layer structure production panel, can support true multi-touch, and the “shadow reduction” effect is also better than the single-layer structure production panel, therefore, the multilayer structure is made.
  • Panels are widely used in organic light-emitting display technology.
  • the overall touch display is developing in a thinner direction.
  • the touch sensing layer is finally The distance between the display layers is getting closer and closer, which leads to an increase in the noise of the touch, the amount of the touch signal is continuously decreasing, and the touch precision is continuously reduced.
  • At least one embodiment of the present disclosure provides a touch panel, as shown in FIG. 1A and FIG. 1B, including: a touch electrode layer having a plurality of touch units D arranged in a matrix;
  • Each of the touch units D includes a touch driving electrode Tx and a touch sensing electrode Rx; the touch sensing electrodes Rx of the adjacent two touch units D are connected, and the touch of the two adjacent touch units D
  • the control driving electrodes Tx are connected; the edge of the touch driving electrode Tx of each touch unit D and the touch sensing electrode Rx are curved.
  • the interaction area between the touch driving electrode and the touch sensing electrode is increased by setting the complementary edges of the touch driving electrode and the touch sensing electrode to be curved edges.
  • the touch sensing signal amount can be improved, and the touch sensitivity is improved; and the curved edge design makes the edge of the touch driving electrode and the touch sensing electrode have a circular chamfer, thereby reducing charge accumulation in the electrode and improving Uniformity of touch performance.
  • the number of fluctuations of the curve of the complementary edge of the touch driving electrode and the touch sensing electrode may be greater than or equal to 1;
  • the number of degrees of change can also be greater than or equal to 1.
  • the change in the curvature of the curve refers to the change in the curvature of the curve.
  • the number of changes in the curvature of the curve is greater than or equal to 1 means that the number of curvature changes of the curve is greater than or equal to 1.
  • the touch driving electrode and the touch are used.
  • the complementary edges of the sensing electrodes are arranged as curves, and the curves shown in FIGS.
  • the curvature of the curve can vary from 90 to 180 degrees.
  • the meaning of the curvature of the curve may range from 90 to 180 degrees.
  • the radius of curvature of the curve may range from 0 to infinity.
  • each touch driving electrode Tx includes two sub-driving electrodes t that are axisymmetric; two sub-driving electrodes t pass at least one first connection.
  • Each of the touch sensing electrodes Rx includes two sub-sensing electrodes r that are axisymmetric; the two sub sensing electrodes r are connected by at least one second connecting bridge n; the touch unit D further includes: two axes that are axisymmetric a floating electrode f; the sub floating electrode f is located between the sub driving electrode t and the sub sensing electrode r, is insulated from the sub driving electrode t and the sub sensing electrode r, and faces the sub driving electrode in a shape and the sub driving
  • the shapes of the electrodes are complementary, and the shape of the sub-sense electrodes facing the sub-sensing electrodes is complementary to the shape of the sub-sensing electrodes.
  • the touch unit may include two sub-drive electrodes that are axisymmetric, two sub-sensing electrodes that are axisymmetric, and two sub-floating electrodes;
  • the complementary edges of the sensing electrodes are separated by the sub floating electrodes, so that the capacitance between the touch driving electrodes and the touch sensing electrodes can be increased by the floating electrodes, that is, the touch sensitivity can be improved.
  • FIG. 1 shows that the capacitance between the touch driving electrodes and the touch sensing electrodes can be increased by the floating electrodes, that is, the touch sensitivity can be improved.
  • the two sub-driving electrodes are connected by two first connecting bridges m, and the two first connecting bridges m are axially symmetric in the column direction; the two sub-sensing electrodes pass through two second connecting bridges n Connected, and the two second connecting bridges n are axially symmetric in the row direction; the two first connecting bridges m and the two second connecting bridges n are evenly arranged in the touch unit, which can effectively improve the elimination Shadow performance.
  • the sizes of the first connecting bridge m and the second connecting bridge n need to be set as small as possible so as not to affect the touch display, so the first connecting bridge m is usually disposed at a position where the two sub-driving electrodes t are close to each other.
  • the second connection bridge n is usually disposed where the two sub-sensing electrodes r are close to each other.
  • the first connecting bridge m is disposed at a position where the two sub-driving electrodes t are closest and the connecting bridge can be disposed
  • the second connecting bridge n is disposed at a position where the two sub-sensing electrodes r are closest and the connecting bridge can be disposed, as shown in FIG. 2A. Show.
  • each of the touch driving electrodes Tx includes two sub-driving electrodes t that are point-symmetric; the two sub-driving electrodes t pass through at least one first connecting bridge.
  • Each of the touch sensing electrodes Rx includes two sub-sensing electrodes r that are point-symmetric; the two sub-sensing electrodes r are connected by at least one second connecting bridge n; the touch unit further includes: two sub-floating points that are point-symmetric The electrode f; the sub floating electrode f is located between the sub-driving electrode t and the sub-sensing electrode r, is insulated from the sub-driving electrode t and the sub-sensing electrode r, and faces the shape of the sub-driving electrode and the sub-driving electrode The shapes are complementary, and the shape facing the sub-sense electrodes is complementary to the shape of the sub-sensing electrodes.
  • the touch unit may include two sub-driving electrodes that are point-symmetric, two sub-sensing electrodes that are point-symmetric, and two sub-floating electrodes;
  • the complementary edges of the sub-sense electrodes are separated by the floating electrodes, so that the capacitance between the touch driving electrodes and the touch sensing electrodes can be increased by the floating electrodes, that is, the touch sensitivity is improved. As shown in FIG.
  • the two sub-driving electrodes t are connected by two first connecting bridges m, and the two first connecting bridges m are point-symmetric; the two sub-sensing electrodes r are connected by two second connecting bridges n, The two second connecting bridges n are point-symmetric; the two first connecting bridges m and the two second connecting bridges n are evenly arranged in the touch unit, so that the shadow elimination performance can be effectively improved.
  • the sizes of the first connecting bridge and the second connecting bridge need to be set as small as possible to avoid affecting the touch display.
  • the first connecting bridge m is usually disposed at a position where the two sub-driving electrodes t are close to each other
  • the second connecting bridge n is usually disposed where the two sub-sensing electrodes r are close to each other.
  • the first connecting bridge m is disposed at a position where the two sub-driving electrodes t are closest and a connecting bridge can be disposed
  • the second connecting bridge n is disposed at a position where the two sub-sensing electrodes r are closest and a connecting bridge can be disposed, as shown in FIG. 2B. Show.
  • the touch electrode pattern according to the embodiment of the present disclosure is applicable to an organic light-emitting touch screen of an external structure
  • the touch panel includes a bridge layer, an insulating layer, and a touch electrode layer (for example, touch according to an embodiment of the present disclosure).
  • the electrode layer structure and the protective layer, and the laminated structure and function of each film layer are the same as those known to the inventors, and will not be described in detail herein.
  • both the driving channel L1 and the sensing channel L2 can be connected by a single side, and the touch driving electrodes, the touch sensing electrodes, and the connecting bridge can be made of a transparent conductive material (such as ITO). .
  • At least one embodiment of the present disclosure provides a touch screen including the above touch panel. Since the working principle of the touch screen is similar to that of the touch panel, the implementation of the touch screen can be referred to the implementation of the touch panel described above, and the repeated description is omitted.
  • At least one embodiment of the present disclosure provides a display device including the above touch screen.
  • the display device can be any product or component having a display function, such as a mobile phone, a tablet computer, a television, a display, a notebook computer, a digital photo frame, a navigator, and the like. Since the working principle of the display device is similar to that of the touch screen, the implementation of the display device can be referred to the implementation of the above touch screen, and the repeated description is omitted.
  • At least one embodiment of the present disclosure provides a method for fabricating the touch panel, comprising: forming a touch electrode layer on a substrate; wherein the touch electrode layer has a plurality of touch units arranged in a matrix;
  • the touch unit includes a touch driving electrode and a touch sensing electrode in a complementary shape; two adjacent touch sensing electrodes are connected, and two adjacent touch driving electrodes are connected; and the touch driving of each touch unit is The edge of the electrode complementary to the touch sensing electrode changes in a curve.
  • the complementary edges of the touch driving electrodes and the touch sensing electrodes are set as edges of a curved curve, so that the interaction area between the touch driving electrodes and the touch sensing electrodes is increased.
  • the touch sensing signal amount can be improved, and the touch sensitivity is improved; and the curved edge design makes the edge of the touch driving electrode and the touch sensing electrode have a circular chamfer, thereby reducing charge accumulation in the electrode and improving Uniformity of touch performance.
  • forming the touch electrode layer on the base substrate may include: forming a plurality of touch driving electrodes and a plurality of touch sensing electrodes on the substrate; wherein each The touch driving electrodes include two sub-driving electrodes that are axisymmetric, each of the touch sensing electrodes includes two sub-sensing electrodes that are axisymmetric; or each touch driving electrode includes two sub-driving electrodes that are point-symmetric, each The touch sensing electrodes include two sub-sensing electrodes that are point-symmetric; a plurality of connecting bridges are formed on the base substrate on which the touch driving electrodes and the touch sensing electrodes are formed; wherein each connecting bridge is configured to each touch Two sub-drive electrodes or two sub-sensing electrodes that are symmetric with each other in the unit are connected.
  • the manufacturing method according to the present disclosure may further include: forming a plurality of floating electrodes on the substrate substrate on which the plurality of touch driving electrodes and the plurality of touch sensing electrodes are formed; wherein each floating electrode The two sub-floating electrodes are axially symmetric or point-symmetric; the sub-floating electrodes are located at complementary edges of the sub-driving electrodes and the sub-sensing electrodes, and are insulated from the sub-driving electrodes and the sub-sensing electrodes.
  • the sub floating electrode is disposed between the touch driving electrode and the touch sensing electrode, and the shape of the sub driving electrode facing the sub driving electrode is complementary to the shape of the sub driving electrode, and faces the The shape of the sub-sensing electrode is complementary to the shape of the sub-sensing electrode.
  • An embodiment of the present disclosure provides a touch panel, a method of manufacturing the same, a touch screen, and a display device.
  • the touch panel includes: a touch electrode layer having a plurality of touch units arranged in a matrix; each touch unit includes A touch driving electrode and a touch sensing electrode are provided in a complementary manner; the touch sensing electrodes of the adjacent two touch units are connected, and the touch driving electrodes of the adjacent two touch units are connected; the touch of each touch unit The edge of the control drive electrode and the touch sensing electrode is curved.
  • the interaction area between the touch driving electrodes and the touch sensing electrodes is increased, thereby improving the amount of touch sensing signals and improving Touch sensitivity; and the curved edge design makes the edge of the touch driving electrode and the touch sensing electrode have a circular chamfer, which can reduce the charge accumulation in the electrode and improve the uniformity of the touch performance.

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  • General Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
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Abstract

一种触控面板,包括:具有呈矩阵排列的多个触控单元(D)的触控电极层;每个触控单元(D)包括形状互补设置的一个触控驱动电极(Tx)和一个触控感应电极(Rx);相邻两个触控单元的触控感应电极(Rx)相连,相邻两个触控单元的触控驱动电极(Tx)相连;每个触控单元的触控驱动电极(Tx)与触控感应电极(Rx)互补的边缘呈曲线变化。还公开了该触控面板的制作方法以及触摸屏和显示装置。

Description

触控面板、其制作方法、触摸屏及显示装置
本申请要求于2017年8月8日递交的中国专利申请第201710672610.X号的优先权,在此全文引用上述中国专利申请公开的内容以作为本申请的一部分。
技术领域
本公开实施例涉及一种触控面板、其制作方法、触摸屏及显示装置。
背景技术
随着显示技术的飞速发展,触摸屏(Touch Screen Panel)已经逐渐遍及人们的生活中,相应的触摸面板的市场规模也越来越大,为了提高竞争实力,各触摸面板的生产商以简化生产工艺,降低生产成本,提高性能为目标,不断提高触控面板的生产科技水平。
发明内容
本公开的至少一个实施例提供了一种触控面板,包括:具有呈矩阵排列的多个触控单元的触控电极层;其中,每个所述触控单元包括形状互补设置的一个触控驱动电极和一个触控感应电极;相邻两个所述触控单元的触控感应电极相连,相邻两个所述触控单元的触控驱动电极相连;每个所述触控单元的所述触控驱动电极与所述触控感应电极互补的边缘呈曲线变化。
在本公开的一个实施例中,所述曲线的起伏变化次数大于等于1;所述曲线的曲度变化次数大于等于1。
在本公开的一个实施例中,所述曲线的曲度变化范围为90~180度。
在本公开的一个实施例中,每个所述触控驱动电极包括呈轴对称的两个子驱动电极;两个所述子驱动电极通过至少一个连接桥相连。
在本公开的一个实施例中,每个所述触控感应电极包括呈轴对称的两个子感应电极;两个所述子感应电极通过至少一个连接桥相连。
在本公开的一个实施例中,每个所述触控单元包括四个所述连接桥;其 中,两个所述子驱动电极通过两个所述连接桥连接,且两个所述连接桥沿列方向呈轴对称;以及两个所述子感应电极通过两个所述连接桥连接,且两个所述连接桥沿行方向呈轴对称。
在本公开的一个实施例中,所述触控单元,还包括:呈轴对称的两个子浮空电极;其中,所述子浮空电极位于所述子驱动电极与所述子感应电极互补的边缘,且与所述子驱动电极和所述子感应电极相互绝缘。
在本公开的一个实施例中,每个所述触控驱动电极包括呈点对称的两个子驱动电极;两个所述子驱动电极通过至少一个连接桥相连。
在本公开的一个实施例中,每个所述触控感应电极包括呈点对称的两个子感应电极;两个所述子感应电极通过至少一个连接桥相连。
在本公开的一个实施例中,每个所述触控单元包括四个所述连接桥;其中,两个所述子驱动电极通过两个所述连接桥连接,且两个所述连接桥呈点对称;以及两个所述子感应电极通过两个所述连接桥连接,且两个所述连接桥呈点对称。
在本公开的一个实施例中,所述触控单元还包括:呈点对称的两个子浮空电极;其中,所述子浮空电极位于所述子驱动电极与所述子感应电极互补的边缘,且与所述子驱动电极和所述子感应电极相互绝缘。
在本公开的一个实施例中,各所述连接桥均匀排布于所述触控单元内。
本公开的至少一个实施例提供了一种触摸屏,包括上述触控面板。
本公开的至少一个实施例提供了一种显示装置,包括上述触摸屏。
本公开的至少一个实施例提供了一种制作上述触控面板的制作方法,包括:在衬底基板上形成触控电极层;其中,所述触控电极层具有呈矩阵排列的多个触控单元;每个所述触控单元包括形状互补设置的一个触控驱动电极和一个触控感应电极;相邻两个所述触控单元的触控感应电极相连,相邻两个所述触控单元的触控驱动电极相连;每个所述触控单元的所述触控驱动电极与所述触控感应电极互补的边缘呈曲线变化。
在本公开的一个实施例中,在衬底基板上形成触控电极层包括:在衬底基板上形成多个所述触控驱动电极和多个所述触控感应电极;其中,每个所述触控驱动电极包括呈轴对称的两个子驱动电极,每个所述触控感应电极包括呈轴对称的两个子感应电极;或,每个所述触控驱动电极包括呈点对称的 两个子驱动电极,每个所述触控感应电极包括呈点对称的两个子感应电极;在形成有所述触控驱动电极和所述触控感应电极的衬底基板上形成多个连接桥;其中,各所述连接桥配置为将每个所述触控单元内相互对称的两个所述子驱动电极或两个所述子感应电极进行连接。
在本公开的一个实施例中,所述方法还包括:在形成有多个所述触控驱动电极和多个所述触控感应电极的衬底基板上,形成多个浮空电极;其中,每个所述浮空电极包括呈轴对称或点对称的两个子浮空电极;所述子浮空电极位于所述子驱动电极与所述子感应电极互补的边缘,且与所述子驱动电极和所述子感应电极相互绝缘。
附图说明
为了更清楚地说明本公开实施例的技术方案,下面将对实施例的附图作简单地介绍,显而易见地,下面描述中的附图仅仅涉及本公开的一些实施例,而非对本公开的限制。
图1A和图1B分别为根据本公开的一个施例的触控面板的结构示意图;以及
图2A和图2B分别为根据本公开的一个实施例的触控单元的结构示意图。
具体实施方式
为使本公开实施例的目的、技术方案和优点更加清楚,下面将结合本公开实施例的附图,对本公开实施例的技术方案进行清楚、完整地描述。显然,所描述的实施例是本公开的一部分实施例,而不是全部的实施例。基于所描述的本公开的实施例,本领域普通技术人员在无需创造性劳动的前提下所获得的所有其他实施例,都属于本公开保护的范围。
在触控显示领域中,触控屏的设置方式很多,包括:单片式(OGS,One glass solution)、外挂式(On Cell)、内嵌式(In Cell)等触控结构,其中On Cell结构以其触控精度高,便于在有机发光显示屏中制作的优点而备受青睐。On Cell技术目前主要分为单层结构制作面板和多层结构制作面板两大类。其中,多层结构制作面板的触控精度高于单层结构制作面板,能支持真 正的多点触控,且“消影”效果也明显好于单层结构制作面板,因此,多层结构制作面板在有机发光显示屏技术中得到广泛应用。
在手持显示领域中,如手机、平板等,整体的触控显示都朝着薄型化的方向发展,随着触控面板堆叠结构的各膜层厚度的不断减薄,最终使得触控感应层与显示层的距离越来越接近,从而导致触控的噪声不断增加,触控信号量不断下降,触控精度不断降低。
本公开的至少一个实施例提供了一种触控面板,如图1A和图1B所示,包括:具有呈矩阵排列的多个触控单元D的触控电极层;
每个触控单元D包括形状互补的一个触控驱动电极Tx和一个触控感应电极Rx;相邻两个触控单元D的触控感应电极Rx相连,相邻两个触控单元D的触控驱动电极Tx相连;每个触控单元D的触控驱动电极Tx与触控感应电极Rx互补的边缘呈曲线变化。
在根据本公开实施例的上述触控面板中,通过将触控驱动电极和触控感应电极的互补边缘设置成为曲线变化的边缘,使得触控驱动电极和触控感应电极之间相互作用面积增加,可以提高触控感应信号量,提高触控灵敏性;且曲线变化的边缘设计使得触控驱动电极和触控感应电极的边缘具有圆弧形倒角,进而可以减少电极中的电荷聚集,提高触控性能的均匀性。
例如,如图2A和图2B所示,在根据本公开实施例的上述触控面板中,触控驱动电极和触控感应电极的互补边缘的曲线的起伏变化次数可以大于等于1;曲线的曲度变化次数也可以大于等于1。所谓曲线的曲度变化指的是曲线的曲率变化,所谓曲线的曲度变化次数大于等于1指的是曲线的曲率变化次数大于等于1。例如,在本公开的一个实施例中,为了增加触控驱动电极和触控感应电极之间相互作用面积,进而提高触控感应信号量,提高触控灵敏性,将触控驱动电极和触控感应电极互补的边缘设置为曲线,如图2A和图2B所示曲线可以具有多个上升和下降的起伏变化,因此该曲线边缘可以呈波浪线的形状延伸,其具有多个波峰和波谷;且该曲线的弯曲程度即波峰和波谷的弧度可以不同,从而使得曲线具有多个不同的曲度,形成多个弧度的倒角,这样还可以减少电极中的电荷聚集,提高触控性能的均匀性。其中,曲线的曲度变化范围可以为90~180度。所谓曲线的曲率变化范围可以为90~180度的含义是曲线的曲率半径变化范围可以为0到无穷大。
例如,如图2A所示,在根据本公开实施例的上述触控面板中,每个触控驱动电极Tx包括呈轴对称的两个子驱动电极t;两个子驱动电极t通过至少一个第一连接桥m相连;每个触控感应电极Rx包括呈轴对称的两个子感应电极r;两个子感应电极r通过至少一个第二连接桥n相连;触控单元D还包括:呈轴对称的两个子浮空电极f;子浮空电极f位于子驱动电极t与子感应电极r之间,与子驱动电极t和子感应电极r相互绝缘,且其面向所述子驱动电极的形状与所述子驱动电极的形状互补,其面向所述子感应电极的形状与所述子感应电极的形状互补。
例如,在根据本公开实施例的触控面板中,触控单元可以包括呈轴对称的两个子驱动电极、呈轴对称的两个子感应电极以及两个子浮空电极;所述子驱动电极与所述子感应电极互补的边缘由子浮空电极隔开,这样通过浮空电极可以增加触控驱动电极与触控感应电极之间的电容量,即可以提高触控灵敏度。如图2A所示,所述两个子驱动电极通过两个第一连接桥m相连,两个第一连接桥m沿列方向呈轴对称;所述两个子感应电极通过两个第二连接桥n相连,且两个第二连接桥n沿行方向呈轴对称;所述两个第一连接桥m和所述两个第二连接桥n均匀排布于触控单元内,这样可以有效提高消影性能。需要说明的是,第一连接桥m和第二连接桥n的尺寸需要尽量设置的小一些,以免影响触控显示,因此第一连接桥m通常设置在两个子驱动电极t相互靠近的位置,第二连接桥n通常设置在两个子感应电极r相互靠近的地方。例如,第一连接桥m设置在两个子驱动电极t最接近且可以设置连接桥的位置,第二连接桥n设置在两个子感应电极r最接近且可以设置连接桥的位置,如图2A所示。
例如,如图2B所示,在根据本公开实施例的触控面板中,每个触控驱动电极Tx包括呈点对称的两个子驱动电极t;两个子驱动电极t通过至少一个第一连接桥m相连;每个触控感应电极Rx包括呈点对称的两个子感应电极r;两个子感应电极r通过至少一个第二连接桥n相连;触控单元还包括:呈点对称的两个子浮空电极f;子浮空电极f位于子驱动电极t与子感应电极r之间,与子驱动电极t和子感应电极r相互绝缘,且其面向所述子驱动电极的形状与所述子驱动电极的形状互补,其面向所述子感应电极的形状与所述子感应电极的形状互补。
例如,在根据本公开实施例的触控面板中,触控单元可以包括呈点对称的两个子驱动电极、呈点对称的两个子感应电极以及两个子浮空电极;所述子驱动电极与所述子感应电极互补的边缘由子所述浮空电极隔开,这样通过所述浮空电极可以增加所述触控驱动电极与所述触控感应电极之间的电容量,即提高触控灵敏度。如图2B所示,两个子驱动电极t之间通过两个第一连接桥m相连,且两个第一连接桥m呈点对称;两个子感应电极r通过两个第二连接桥n相连,且两个第二连接桥n呈点对称;两个第一连接桥m和两个第二连接桥n均匀排布于触控单元内,这样可以有效提高消影性能。需要说明的是,第一连接桥和第二连接桥的尺寸需要尽量设置的小一些,以免影响触控显示。因此,第一连接桥m通常设置在两个子驱动电极t相互靠近的位置,第二连接桥n通常设置在两个子感应电极r相互靠近的地方。例如,第一连接桥m设置在两个子驱动电极t最接近且可以设置连接桥的位置,第二连接桥n设置在两个子感应电极r最接近且可以设置连接桥的位置,如图2B所示。
例如,根据本公开实施例的上述触控电极图案适用于外挂结构的有机发光触控屏,触控面板包括跨桥层、绝缘层、触控电极层(例如,根据本公开实施例的触控电极层结构)及保护层,各膜层的层叠结构及功能与发明人已知的技术相同,在此不作详述。其中,如图1A和图1B所示,驱动通道L1和感应通道L2都可采用单边连接方式,触控驱动电极和触控感应电极、连接桥均可采用透明导电材料(比如ITO等)制作。
本公开的至少一个实施例提供了一种触摸屏,包括上述触控面板。由于该触摸屏的工作原理与触控面板相似,因此该触摸屏的实施可以参见上述触控面板的实施,重复之处不再赘述。
本公开的至少一个实施例提供了一种显示装置,包括上述触摸屏。该显示装置可以为手机、平板电脑、电视机、显示器、笔记本电脑、数码相框、导航仪等任何具有显示功能的产品或部件。由于该显示装置的工作原理与触摸屏相似,因此该显示装置的实施可以参见上述触摸屏的实施,重复之处不再赘述。
本公开的至少一个实施例提供了一种制作上述触控面板的方法,包括:在衬底基板上形成触控电极层;其中,触控电极层具有呈矩阵排列的多个触 控单元;每个触控单元包括形状互补设置的一个触控驱动电极和一个触控感应电极;相邻两个触控感应电极相连,相邻两个触控驱动电极相连;每个触控单元的触控驱动电极与触控感应电极互补的边缘呈曲线变化。
在根据本公开实施例的上述制作方法中,将触控驱动电极和触控感应电极的互补边缘设置成为曲线变化的边缘,从而使得触控驱动电极和触控感应电极之间相互作用面积增加,进而可以提高触控感应信号量,提高触控灵敏性;且曲线变化的边缘设计使得触控驱动电极和触控感应电极的边缘具有圆弧形倒角,进而可以减少电极中的电荷聚集,提高触控性能的均匀性。
在实施时,在根据本公开的制作方法中,在衬底基板上形成触控电极层,可以包括:在衬底基板上形成多个触控驱动电极和多个触控感应电极;其中,每个触控驱动电极包括呈轴对称的两个子驱动电极,每个触控感应电极包括呈轴对称的两个子感应电极;或,每个触控驱动电极包括呈点对称的两个子驱动电极,每个触控感应电极包括呈点对称的两个子感应电极;在形成有触控驱动电极和触控感应电极的衬底基板上形成多个连接桥;其中,各连接桥配置为将每个触控单元内相互对称的两个子驱动电极或两个子感应电极进行连接。
在实施时,根据本公开的制作方法还可以包括:在形成有多个触控驱动电极和多个触控感应电极的衬底基板上,形成多个浮空电极;其中,每个浮空电极包括呈轴对称或点对称的两个子浮空电极;子浮空电极位于子驱动电极与子感应电极互补的边缘,且与子驱动电极和子感应电极相互绝缘。
在本公开的一个实施例中,子浮空电极设置在触控驱动电极和触控感应电极之间,其面向所述子驱动电极的形状与所述子驱动电极的形状互补,其面向所述子感应电极的形状与所述子感应电极的形状互补。
本公开的实施例提供了一种触控面板、其制作方法、触摸屏及显示装置,该触控面板包括:具有呈矩阵排列的多个触控单元的触控电极层;每个触控单元包括互补设置的一个触控驱动电极和一个触控感应电极;相邻两个触控单元的触控感应电极相连,相邻两个触控单元的触控驱动电极相连;每个触控单元的触控驱动电极与触控感应电极互补的边缘呈曲线变化。这样通过将触控驱动电极和触控感应电极的互补边缘设置成为曲线变化的边缘,从而使得触控驱动电极和触控感应电极之间相互作用面积增加,进而可以提高触控 感应信号量,提高触控灵敏性;且曲线变化的边缘设计使得触控驱动电极和触控感应电极的边缘具有圆弧形倒角,进而可以减少电极中的电荷聚集,提高触控性能的均匀性。
以上所述仅是本公开的示范性实施方式,而非用于限制本公开的保护范围,本公开的保护范围由所附的权利要求确定。

Claims (17)

  1. 一种触控面板,包括:具有呈矩阵排列的多个触控单元的触控电极层;其中,
    每个所述触控单元包括形状互补设置的一个触控驱动电极和一个触控感应电极;相邻两个所述触控单元的触控感应电极相连,相邻两个所述触控单元的触控驱动电极相连;以及
    每个所述触控单元的所述触控驱动电极与所述触控感应电极互补的边缘呈曲线变化。
  2. 如权利要求1所述的触控面板,其中,所述曲线的起伏变化次数大于等于1;所述曲线的曲度变化次数大于等于1。
  3. 如权利要求2所述的触控面板,其中,所述曲线的曲度变化范围为90~180度。
  4. 如权利要求1-3任一项所述的触控面板,其中,每个所述触控驱动电极包括呈轴对称的两个子驱动电极;两个所述子驱动电极通过至少一个连接桥相连。
  5. 如权利要求4所述的触控面板,其中,每个所述触控感应电极包括呈轴对称的两个子感应电极;两个所述子感应电极通过至少一个连接桥相连。
  6. 如权利要求5所述的触控面板,其中,每个所述触控单元包括四个所述连接桥;其中,
    两个所述子驱动电极通过两个所述连接桥连接,且两个所述连接桥沿列方向呈轴对称;以及
    两个所述子感应电极通过两个所述连接桥连接,且两个所述连接桥沿行方向呈轴对称。
  7. 如权利要求5所述的触控面板,其中,所述触控单元还包括:呈轴对称的两个子浮空电极,所述子浮空电极位于所述子驱动电极与所述子感应电极互补的边缘,且与所述子驱动电极和所述子感应电极相互绝缘。
  8. 如权利要求1-3中任一项所述的触控面板,其中,每个所述触控驱动电极包括呈点对称的两个子驱动电极;两个所述子驱动电极通过至少一个连接桥相连。
  9. 如权利要求8所述的触控面板,其中,每个所述触控感应电极包括呈点对称的两个子感应电极;两个所述子感应电极通过至少一个连接桥相连。
  10. 如权利要求9所述的触控面板,其中,每个所述触控单元包括四个所述连接桥;其中,
    两个所述子驱动电极通过两个所述连接桥连接,且两个所述连接桥呈点对称;以及
    两个所述子感应电极通过两个所述连接桥连接,且两个所述连接桥呈点对称。
  11. 如权利要求9所述的触控面板,其中,所述触控单元,还包括:呈点对称的两个子浮空电极,所述子浮空电极位于所述子驱动电极与所述子感应电极互补的边缘,且与所述子驱动电极和所述子感应电极相互绝缘。
  12. 如权利要求6或10所述的触控面板,其中,各所述连接桥均匀排布于所述触控单元内。
  13. 一种触摸屏,包括如权利要求1-12任一项所述的触控面板。
  14. 一种显示装置,包括如权利要求13所述的触摸屏。
  15. 一种如权利要求1-12中任一项所述的触控面板的制作方法,包括:
    在衬底基板上形成触控电极层;
    其中,所述触控电极层具有呈矩阵排列的多个触控单元;每个所述触控单元包括形状互补设置的一个触控驱动电极和一个触控感应电极;相邻两个所述触控单元的触控感应电极相连,相邻两个所述触控单元的触控驱动电极相连;每个所述触控单元的所述触控驱动电极与所述触控感应电极互补的边缘呈曲线变化。
  16. 如权利要求15所述的制作方法,其中,在衬底基板上形成触控电极层包括:
    在衬底基板上形成多个所述触控驱动电极和多个所述触控感应电极;
    其中,每个所述触控驱动电极包括呈轴对称的两个子驱动电极,每个所述触控感应电极包括呈轴对称的两个子感应电极;或,每个所述触控驱动电极包括呈点对称的两个子驱动电极,每个所述触控感应电极包括呈点对称的两个子感应电极;
    在形成有所述触控驱动电极和所述触控感应电极的衬底基板上形成多个连接桥;
    其中,各所述连接桥配置为将每个所述触控单元内相互对称的两个所述子驱动电极或两个所述子感应电极进行连接。
  17. 如权利要求16所述的制作方法,其还包括:
    在形成有多个所述触控驱动电极和多个所述触控感应电极的衬底基板上,形成多个浮空电极;
    其中,每个所述浮空电极包括呈轴对称或点对称的两个子浮空电极;所述子浮空电极位于所述子驱动电极与所述子感应电极互补的边缘,且与所述子驱动电极和所述子感应电极相互绝缘。
PCT/CN2018/097204 2017-08-08 2018-07-26 触控面板、其制作方法、触摸屏及显示装置 WO2019029376A1 (zh)

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