WO2016173340A1 - 触控显示面板及其制备方法、触摸检测方法 - Google Patents

触控显示面板及其制备方法、触摸检测方法 Download PDF

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Publication number
WO2016173340A1
WO2016173340A1 PCT/CN2016/077057 CN2016077057W WO2016173340A1 WO 2016173340 A1 WO2016173340 A1 WO 2016173340A1 CN 2016077057 W CN2016077057 W CN 2016077057W WO 2016173340 A1 WO2016173340 A1 WO 2016173340A1
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Prior art keywords
touch electrode
substrate
touch
electrode
trace
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PCT/CN2016/077057
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English (en)
French (fr)
Inventor
李梁梁
郭会斌
郭总杰
陈曦
冯玉春
王守坤
王静
Original Assignee
京东方科技集团股份有限公司
北京京东方显示技术有限公司
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Priority to US15/314,161 priority Critical patent/US10282005B2/en
Publication of WO2016173340A1 publication Critical patent/WO2016173340A1/zh

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    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F3/00—Input 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
    • G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
    • G06F3/03—Arrangements for converting the position or the displacement of a member into a coded form
    • G06F3/041—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means
    • G06F3/0412—Digitisers structurally integrated in a display
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F3/00—Input 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
    • G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
    • G06F3/03—Arrangements for converting the position or the displacement of a member into a coded form
    • G06F3/041—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means
    • G06F3/0416—Control or interface arrangements specially adapted for digitisers
    • G06F3/04164—Connections between sensors and controllers, e.g. routing lines between electrodes and connection pads
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F3/00—Input 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
    • G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
    • G06F3/03—Arrangements for converting the position or the displacement of a member into a coded form
    • G06F3/041—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means
    • G06F3/047—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means using sets of wires, e.g. crossed wires
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F2203/00—Indexing scheme relating to G06F3/00 - G06F3/048
    • G06F2203/041—Indexing scheme relating to G06F3/041 - G06F3/045
    • G06F2203/04103—Manufacturing, i.e. details related to manufacturing processes specially suited for touch sensitive devices

Definitions

  • Embodiments of the present invention relate to the field of display technologies, and in particular, to a touch display panel, a method for fabricating the same, and a touch detection method.
  • the touch screen includes an add-on touch panel (Add On Touch Panel) and an in-cell touch panel (In Cell Touch Panel).
  • the touch electrodes are integrated inside the display panel, for example, inside the array substrate of the display panel.
  • the first touch electrode 50 is connected to the first touch electrode trace 30
  • the second touch electrode 60 is connected to the second touch electrode trace 40 .
  • the first touch electrode trace 30 and the second touch electrode trace 40 are located in the light transmissive area of the display area. Since the first touch electrode trace 30 and the second touch electrode trace 40 need to occupy the area of the light transmissive area, the aperture ratio is lowered.
  • a touch display panel includes a first substrate and a second substrate.
  • the first substrate includes a plurality of mutually parallel gate lines and a plurality of parallel data lines in a non-display area.
  • One of the second touch electrode traces is located between the two sub-pixels; a pair of the gate lines are located between any adjacent two rows of sub-pixels of the first substrate, and one of the first touches
  • a control electrode trace is located between the pair of gate lines.
  • a method for fabricating a touch display panel includes forming a first substrate and a second substrate, and forming the first substrate includes: forming a plurality of regions included in the non-display area a mutually parallel gate line, a plurality of mutually parallel data lines, a plurality of first touch electrode traces parallel to the gate line, and a plurality of second touch electrode traces parallel to the data line, and Forming a first touch electrode electrically connected to the first touch electrode trace, and a first substrate electrically connected to the second touch electrode trace; wherein, two adjacent Between the data lines, there are two sub-pixels arranged along the same row of the first substrate, one of the second touch electrode traces is located between the two sub-pixels; a pair of the gate lines are located on the first substrate Between any two adjacent rows of sub-pixels, one of the first touch electrode traces is located between the pair of gate lines.
  • a touch detection method of the above touch display panel includes: applying a driving signal to a first transparent electrode on a second substrate during a touch phase; The first touch electrode trace electrically connected to the first touch electrode and the change of the signal on the second touch electrode trace electrically connected to the second touch electrode determine the contact coordinates.
  • a touch detection method of the touch display panel includes: a first touch electrode trace electrically connected to the first touch electrode on the first substrate during the touch phase Or applying a driving signal to the second touch electrode trace electrically connected to the second touch electrode; determining the contact by changing the signal on the first touch electrode trace and the second touch electrode trace coordinate.
  • FIG. 1 is a schematic structural view of a touch electrode and a touch electrode trace on a known array substrate
  • FIG. 2 is a schematic structural diagram of a first substrate in a touch display panel according to an embodiment of the present invention
  • FIG. 3 is a schematic structural diagram of a touch display panel according to an embodiment of the present disclosure.
  • Figure 4 is a cross-sectional view along line AA' of Figure 2;
  • 5a-5c are schematic diagrams of processes for preparing a first substrate in a touch display panel according to an embodiment of the invention.
  • the embodiment of the present invention provides a touch display panel, a method for fabricating the same, and a touch detection method, wherein the first touch electrode trace electrically connected to the first touch electrode and the second touch electrode are electrically connected
  • the connected second touch electrode traces are all disposed in the non-transmissive non-display area, thereby avoiding the influence on the aperture ratio.
  • an embodiment of the present invention provides a touch display panel including a first substrate 01 and a second substrate 02.
  • the first substrate 01 includes a plurality of non-display areas. a parallel gate line 10, a plurality of mutually parallel data lines 20, a plurality of first touch electrode traces 30 parallel to the gate lines 10, and a plurality of second touch electrodes parallel to the data lines 20
  • the first substrate 01 further includes a first touch electrode electrically connected to the first touch electrode trace 30
  • the second touch electrode 60 is electrically connected to the second touch electrode trace 40.
  • the two adjacent data lines 20 have two sub-pixels arranged along the same row of the first substrate 01.
  • One of the second touch electrode traces 40 is located between the two sub-pixels; a pair of gate lines 10 are located between any two adjacent rows of sub-pixels of the first substrate 01, one of the first The touch electrode traces 30 are located between the pair of gate lines 10.
  • the non-display area refers to an opaque area other than the area of the sub-pixel. For example, an area between any adjacent sub-pixels.
  • Each of the sub-pixels may include, for example, a thin film transistor.
  • the thin film transistor includes a gate electrode 801 electrically connected to the gate line 10, a gate insulating layer, a semiconductor active layer, a source electrode 802 electrically connected to the data line 20, and a drain electrode 803 electrically connected to the pixel electrode 70.
  • the electrical connection manner of the pixel electrode 70 and the drain 803 may be a direct electrical connection or may be electrically connected through a via.
  • Each of the first touch electrode traces 30 can be connected to the plurality of first touch electrodes 50, and each of the second touch electrode traces 40 can be connected to the plurality of second touch electrodes 60.
  • the positions of the first touch electrode 50 and the second touch electrode 60 illustrated in FIG. 2 are only schematic. In other embodiments of the present invention, the positions of the two electrodes are set to enable touch. Does not affect the normal display of the display phase.
  • the first touch electrode 50 and the second touch electrode 60 are both transparent electrodes.
  • the first touch electrode 50 and the second touch electrode 60 are insulated from each other. Therefore, the first touch electrode trace 30 electrically connected to the first touch electrode 50 and the second touch The second touch electrode traces 40 electrically connected to the control electrode 60 are also insulated. For example, the first touch electrode traces 30 and the second touch electrode traces 40 are disposed in different layers.
  • the electrical connection between the first touch electrode 50 and the first touch electrode trace 30 is illustrated in FIG. 2, and the electrical connection between the second touch electrode 60 and the second touch electrode trace 40 is only illustrative. The person skilled in the art can select other forms to realize the electrical connection according to the actual situation.
  • the second touch electrode trace 40 is not required according to the touch precision. It is disposed between each adjacent two columns of sub-pixels, that is, one of the second touch electrode traces 40 may be disposed every few columns of sub-pixels. Of course, in the embodiment of the present invention, one second touch electrode trace 40 may be disposed between two adjacent columns of sub-pixels, which may be set according to actual conditions. This is not limited.
  • one of the first touch electrode traces 30 may be disposed in a plurality of rows of sub-pixels. Of course, one of the first touches may be disposed between any adjacent two rows of sub-pixels.
  • the electrode trace 30 can be set according to actual conditions, and is not limited herein.
  • the first touch electrode trace 30 electrically connected to the first touch electrode 50 and the second touch electrode trace 40 electrically connected to the second touch electrode 60 are respectively disposed. In the non-transmissive non-display area, the influence on the aperture ratio can be avoided.
  • the first touch electrode 50 and the second touch electrode 60 are exposed on the surface of the first substrate 01 and opposite to the substrate of the first substrate 01.
  • the first touch electrodes 50 and the second touch electrodes 60 are in the same plane away from the upper surface of the substrate.
  • the surface of the first touch electrode 50 and the second touch electrode 60 exposed to the first substrate 01 means that the first touch electrode is viewed from the whole of the first substrate 01.
  • the second touch electrode 60 is located at the outermost layer of the first substrate 01.
  • first touch electrode 50 and the second touch electrode 60 are in the same plane, and do not represent the entire first touch electrode 50 and the entire second touch electrode 60.
  • the upper surfaces are all in the same plane, and the upper surfaces of the first touch electrodes 50 and the second touch electrodes 60 may be in the same plane.
  • the second substrate 02 includes, for example, an auxiliary spacer 90 and a first transparent electrode 100 covering the auxiliary spacer 90; wherein the auxiliary spacer 90 and the first contact
  • the control electrode 50 and the second touch electrode 60 have overlapping portions on the projection of the first substrate 01, and the first transparent electrode 100 covering the auxiliary spacer 90 is exposed to the surface of the second substrate 02. .
  • the first transparent electrode 100 may be, for example, an electrode disposed on the second substrate 02.
  • the first substrate 01 may include, for example, a common electrode in addition to the pixel electrode 70, that is, for a coplanar switching type ( In the first substrate 01 of the In-Plane Switch (referred to as IPS), the pixel electrode 70 and the common electrode are disposed at the same layer and are strip electrodes; for advanced-super Dimensional Switching (Advanced-super Dimensional Switching) , referred to as ADS)
  • the pixel electrode 70 and the common electrode are disposed in different layers, wherein the upper electrode is a strip electrode and the lower electrode is a plate electrode.
  • the first transparent electrode 100 may be a common electrode.
  • the second substrate 02 may include, for example, a black matrix, a red, green, blue filter layer or the like in addition to the auxiliary spacer 90 and the first transparent electrode 100.
  • the first touch electrode 50 and the second touch electrode 60 can be turned on by the first transparent electrode 100 on the auxiliary spacer 90 due to the pressing of the finger, thereby giving the first transparent
  • the position of the touch point can be determined by one of the electrodes 100, the first touch electrode 50 and the second touch electrode 60.
  • the position of the touch point is required to be traced at the same time in the prior art.
  • the invention provides a simpler technical solution by applying a signal to the second touch electrode trace.
  • first touch electrode 50 and the second touch electrode 60 on the first substrate 01 are schematically illustrated, and the first substrate 01 does not include only the first The touch electrode 50 and the second touch electrode 60.
  • auxiliary spacer 90 and the first transparent electrode 100 on the second substrate 02 are only schematically illustrated, and the second substrate 02 does not only include the auxiliary spacer 90 and the first transparent electrode 100. .
  • the first touch electrode 50 and the second touch electrode 60 are located in the non-display area and are disposed in the same layer.
  • the first touch electrode 50 and the second touch electrode 60 are disposed in the non-display area, and the area of the light-transmissive sub-pixel area is not occupied, thereby further reducing the aperture ratio.
  • the first touch electrode 50 and the second touch electrode 60 are disposed in the same layer, which can be formed by one patterning process, so that the number of patterning processes can be avoided.
  • first touch electrode 50 and the second touch electrode 60 may be disposed in the same layer as the pixel electrode 40 disposed on the first substrate 01 in the sub-pixel region.
  • the second touch electrode trace 40 is disposed in the same layer as the data line 20, and the second touch electrode 60 passes through the via and the second touch electrode.
  • the first touch electrode line 30 is disposed in the same layer as the first touch electrode 50; wherein the first substrate 01 further includes the first touch electrode 50 and a retention pattern 41 in the same layer as the second touch electrode trace 40.
  • the purpose of the retention pattern 41 is to have the upper surface of the first touch electrode 50 above it and the upper surface of the second touch electrode 60 disposed above the second touch electrode trace 40.
  • the first transparent electrode 100 is in contact with the first touch electrode 50 and the second touch electrode 60 due to the pressing of the finger during the touch.
  • the common electrode is located on the second substrate. Therefore, the common electrode can be directly used to turn on the first touch electrode 50 and the second touch electrode 60 during the touch phase.
  • the structure of the first touch electrode 50 and the second touch electrode 60 is not required to be additionally formed, so that the structure is more simplified.
  • the embodiment of the present invention further provides a method for preparing a touch display panel, comprising: forming a first substrate 01 and a second substrate 02; as shown in FIG. 1, forming the first substrate 01 includes: forming a portion including the non-display area a plurality of mutually parallel gate lines 10, a plurality of mutually parallel data lines 20, a plurality of first touch electrode traces 30 parallel to the gate lines 10, and a plurality of second touches parallel to the data lines 20 Control electrode routing 40, and forming a first touch electrode 50 electrically connected to the first touch electrode trace 30 and a second touch electrode 60 electrically connected to the second touch electrode trace 40 a first substrate 01; wherein two adjacent ones of the data lines 20 have two sub-pixels arranged along the same row of the first substrate 01, and one of the second touch electrode traces 40 is located at the two sub-pixels Between the pixels, a pair of the gate lines 10 are located between adjacent rows of sub-pixels of the first substrate 01, and the first touch electrode traces 30 are located between the pair of the gate
  • the first touch electrode trace 30 electrically connected to the first touch electrode 50 and the second touch electrode trace 40 electrically connected to the second touch electrode 60 are respectively disposed on the opaque non-transparent The display area, and thus the embodiment of the present invention can avoid the influence on the aperture ratio compared to the prior art.
  • forming the second substrate 02 includes forming a second substrate 02 including an auxiliary spacer 90 and a first transparent electrode 100 covering the auxiliary spacer 90.
  • the auxiliary spacer 90 has an overlapping portion with the projection of the first touch electrode 50 and the second touch electrode 60 on the first substrate 01, and covers the first portion of the auxiliary spacer 90
  • the transparent electrode 100 is exposed to the surface of the second substrate 02.
  • the first touch electrode 50 and the second touch electrode 60 are also exposed on the surface of the first substrate 01, and the substrate is opposite to the substrate of the first substrate 01.
  • a touch electrode 50 and the second touch electrode 60 are in the same plane away from the upper surface of the substrate.
  • the first touch electrode 50 and the second touch electrode 60 are formed in a non-display area and formed by one patterning process.
  • the first touch electrode 50 and the second touch electrode 60 are disposed in a non-display area.
  • the area of the light-transmissive sub-pixel region can be eliminated, thereby avoiding a reduction in aperture ratio. On this basis, the increase in the number of patterning processes can also be avoided.
  • first touch electrode 50 and the second touch electrode 60 may be formed in a patterning process with the pixel electrode 40 located in the sub-pixel region on the first substrate 01.
  • a retention pattern 41 under the first touch electrode 50 is further formed on the first substrate 01; the second touch electrode trace 40, the retention The pattern 41 and the data line 20 are formed by a patterning process, wherein the second touch electrode 60 is electrically connected to the second touch electrode trace 40 through a via; the first touch electrode trace 30 is formed by the first patterning process of the first touch electrode 50.
  • a plurality of gate lines 10 and two gate electrodes 801 electrically connected to each of the gate lines 10 are formed on the base substrate by one patterning process.
  • a pair of gate lines 10 are formed between any adjacent two rows of sub-pixels of the first substrate 01 to be formed.
  • a gate insulating layer 804 is formed, and a semiconductor active layer 805 is formed.
  • a data line 20 As shown in FIG. 5c, on the basis of completing S02, a data line 20, a source 802 electrically connected to the data line 20, a drain 803, and a second touch electrode trace 40 are formed by one patterning process. The pattern 41 is retained.
  • each sub-pixel to be formed in each row of the first substrate 01 two adjacent sub-pixels arranged along the same row of the first substrate 01 are adjacent between the two adjacent data lines 20, each of which is The second touch electrode trace 40 is located between the two sub-pixels.
  • the retention pattern 41 is located below the first touch electrode 50 to be formed.
  • the second touch electrode trace 40 need not be disposed between each adjacent two columns of sub-pixels, that is, one of the second touch electrode traces 40 may be disposed every few columns of sub-pixels.
  • the second touch electrode traces 40 are evenly distributed on the base substrate at the same interval, or may be distributed on the base substrate at different intervals.
  • a protective layer is formed, and a first touch electrode trace 30 is formed on the protective layer, and the first contact with the first touch electrode trace 30 is electrically connected.
  • the protective layer includes a first via hole exposing the drain 803 and a second via hole exposing the second touch electrode trace 40; the pixel electrode 70 passes through the first via hole and the drain 803 The second touch electrode 60 is electrically connected to the second touch electrode trace 40 through the second via hole.
  • the first touch electrode traces 30 are disposed between each pair of the gate lines 10. However, one of the first touch electrode traces 30 may be disposed every few rows of sub-pixels. All of the first touch electrode traces 30 are evenly distributed on the base substrate at the same interval, or may be distributed on the base substrate at different intervals.
  • the method of fabricating the second substrate includes: forming an auxiliary spacer 90 at a position corresponding to the first touch electrode 50 and the second touch electrode 60, and causing the auxiliary The spacer 90 has an overlapping portion with the projection of the first touch electrode 50 and the second touch electrode 60 on the first substrate 01; then, a transparent electrode is formed.
  • the embodiment of the present invention further provides a touch detection method for the touch display panel shown in FIG. 1 , including: applying a driving signal to the first transparent electrode 100 on the second substrate 02 during the touch phase; The change of the signal on the first touch electrode trace 30 electrically connected to the first touch electrode 50 and the second touch electrode trace 40 electrically connected to the second touch electrode 60 on the substrate 01 determines the contact coordinates.
  • the first touch electrode 50 and the second touch electrode 60 are exposed on the surface of the first substrate 01 and opposite to the substrate of the first substrate 01.
  • the upper surfaces of the first touch electrodes 50 and the second touch electrodes 60 are in the same plane.
  • the second substrate 02 includes an auxiliary spacer 90 and a first transparent electrode 100 covering the auxiliary spacer; wherein the auxiliary spacer 90 and the first touch electrode 50 and the second touch
  • the projection of the electrode 60 on the first substrate 01 has an overlapping portion, and the first transparent electrode 50 covering the auxiliary spacer 90 is exposed to the surface of the second substrate 02.
  • the first touch electrode 50 and the second touch electrode 60 can be turned on by the first transparent electrode 100 on the auxiliary spacer 90 due to the pressing of the finger, thereby being given to the second substrate.
  • the first transparent electrode 100 on the 02 applies a driving signal, correspondingly, the first touch electrode trace 30 electrically connected to the first touch electrode 50 and the second touch electrode 60 are electrically connected to the touch position.
  • the signal of the connected second touch electrode trace 40 changes, so that the coordinates of the contact can be determined accordingly.
  • the embodiment of the present invention further provides a touch detection method for the touch display panel shown in FIG. 1 , including: a first touch electrically connected to the first touch electrode 50 on the first substrate 01 during the touch phase
  • the control electrode trace 30 or the second touch electrode trace 40 electrically connected to the second touch electrode 60 applies a driving signal; the trace is located on the first touch electrode trace 30 and the second touch electrode trace
  • the change of the signal on 40 determines the contact coordinates.
  • the first touch electrode 50 and the second touch electrode 60 are exposed on the surface of the first substrate 01 and opposite to the substrate of the first substrate 01.
  • the upper surfaces of the first touch electrodes 50 and the second touch electrodes 60 are in the same plane.
  • the second substrate 02 includes an auxiliary spacer 90 and a first transparent electrode 100 covering the auxiliary spacer; wherein the auxiliary spacer 90 and the first touch electrode 50 and the second touch
  • the projection of the electrode 60 on the first substrate 01 has an overlapping portion, and the first transparent electrode 50 covering the auxiliary spacer 90 is exposed to the surface of the second substrate 02.
  • the first touch electrode 50 and the second touch electrode 60 can be turned on by the first transparent electrode 100 on the auxiliary spacer 90, and thus are given to the first substrate.
  • the first touch electrode trace 30 or the second touch electrode trace 40 on the 01 applies a driving signal, correspondingly, at the touch position, the signal of the other touch electrode trace changes, thereby This determines the coordinates of the contact.

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Abstract

一种触控显示面板及其制备方法、触摸检测方法。该触控显示面板包括第一基板(01)和第二基板(02)；所述第一基板(01)包括位于非显示区的多根相互平行的栅线(10)、多根相互平行的数据线(20)、多根与栅线(10)平行的第一触控电极走线(30)、多根与数据线(20)平行的第二触控电极走线(40)，所述第一基板(01)还包括与第一触控电极走线(30)电连接的第一触控电极(50)、与第二触控电极走线(40)电连接的第二触控电极(60)；相邻两根数据线(20)之间具有沿第一基板(01)同一行排列的两个子像素，一根第二触控电极走线(40)位于所述两个子像素之间；一对栅线(10)位于第一基板(01)的任意相邻两行子像素之间，一根第一触控电极走线（30）位于该对栅线(10)之间。由于第一触控电极走线(30)与第二触控电极走线(40)均设置在不透光的非显示区，可以避免对开口率的影响。

Description

触控显示面板及其制备方法、触摸检测方法 技术领域
本发明实施例涉及显示技术领域，尤其涉及一种触控显示面板及其制备方法、触摸检测方法。
背景技术
随着显示技术的飞速发展，触控屏(Touch Panel，简称TP)的诞生使人们的生活更加便捷。
触控屏包括外挂式触控屏(Add On Touch Panel)和内嵌式触控屏(In Cell Touch Panel)。在内嵌式触控屏中，触控电极集成在显示面板内部，例如设置在显示面板的阵列基板内部。
已知一种内嵌式触控屏如图1所示，第一触控电极50与第一触控电极走线30相连，第二触控电极60与第二触控电极走线40相连，其中第一触控电极走线30和第二触控电极走线40位于显示区域的透光区。由于第一触控电极走线30和第二触控电极走线40需要占用透光区的面积，因此会导致开口率下降。
发明内容
根据本发明第一方面，提供一种触控显示面板，包括第一基板和第二基板；所述第一基板包括位于非显示区的多根相互平行的栅线、多根相互平行的数据线、多根与所述栅线平行的第一触控电极走线、多根与所述数据线平行的第二触控电极走线，还包括与所述第一触控电极走线电连接的第一触控电极、与所述第二触控电极走线电连接的第二触控电极；其中，相邻两根所述数据线之间具有沿第一基板同一行排列的两个子像素，一根所述第二触控电极走线位于所述两个子像素之间；一对所述栅线位于所述第一基板的任意相邻两行子像素之间，一根所述第一触控电极走线位于该对所述栅线之间。
根据本发明的第二方面，提供一种触控显示面板的制备方法，包括形成第一基板和第二基板；形成所述第一基板包括：形成包括位于非显示区的多 根相互平行的栅线、多根相互平行的数据线、多根与所述栅线平行的第一触控电极走线、多根与所述数据线平行的第二触控电极走线，以及形成与所述第一触控电极走线电连接的第一触控电极、与所述第二触控电极走线电连接的第二触控电极的第一基板；其中，相邻两根所述数据线之间具有沿第一基板同一行排列的两个子像素，一根所述第二触控电极走线位于所述两个子像素之间；一对所述栅线位于所述第一基板的任意相邻两行子像素之间，一根所述第一触控电极走线位于该对栅线之间。
根据本发明的第三方面，提供一种上述触控显示面板的触摸检测方法，包括：在触控阶段，向位于第二基板上的第一透明电极施加驱动信号；通过位于第一基板上与第一触控电极电连接的第一触控电极走线、与第二触控电极电连接的第二触控电极走线上信号的变化，确定触点坐标。
根据本发明的第四方面，提供一种上述触控显示面板的触摸检测方法，包括：在触控阶段，向位于第一基板上与第一触控电极电连接的第一触控电极走线或与第二触控电极电连接的第二触控电极走线施加驱动信号；通过位于所述第一触控电极走线和所述第二触控电极走线上信号的变化，确定触点坐标。
附图说明
为了更清楚地说明本发明实施例的技术方案，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发明的一些实施例，而非对本发明的限制。
图1为一种已知阵列基板上触控电极与触控电极走线的结构示意图；
图2为本发明实施例提供的一种触控显示面板中第一基板的结构示意图；
图3为本发明实施例提供的一种触控显示面板的结构示意图；
图4为图2中沿AA’的剖视示意图；
图5a-5c为本发明实施例提供的一种制备触控显示面板中第一基板的过程示意图。
附图标记：
01-第一基板；02-第二基板；10-栅线；20-数据线；30-第一触控电极走 线；40-第二触控电极走线；41-保留图案；50-第一触控电极；60-第二触控电极；70-像素电极；801-栅极；802-源极；803-漏极；804-栅绝缘层；805-半导体有源层；90-辅助隔垫物；100-第一透明电极。
具体实施方式
为使本发明实施例的目的、技术方案和优点更加清楚，下面将结合本发明实施例的附图，对本发明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发明的一部分实施例，而不是全部的实施例。基于所描述的本发明的实施例，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，都属于本发明保护的范围。
除非另作定义，此处使用的技术术语或者科学术语应当为本发明所属领域内具有一般技能的人士所理解的通常意义。本发明专利申请说明书以及权利要求书中使用的“第一”、“第二”以及类似的词语并不表示任何顺序、数量或者重要性，而只是用来区分不同的组成部分。同样，“一个”或者“一”等类似词语也不表示数量限制，而是表示存在至少一个。“包括”或者“包含”等类似的词语意指出现在“包括”或者“包含”前面的元件或者物件涵盖出现在“包括”或者“包含”后面列举的元件或者物件及其等同，并不排除其他元件或者物件。“连接”或者“相连”等类似的词语并非限定于物理的或者机械的连接，而是可以包括电性的连接，不管是直接的还是间接的。“上”、“下”、“左”、“右”等仅用于表示相对位置关系，当被描述对象的绝对位置改变后，则该相对位置关系也可能相应地改变。
本发明实施例提供了一种触控显示面板及其制备方法、触摸检测方法，由于与所述第一触控电极电连接的第一触控电极走线、与所述第二触控电极电连接的第二触控电极走线均设置在不透光的非显示区，因而可以避免对开口率的影响。
如图2所示，本发明实施例提供了一种触控显示面板，包括第一基板01和第二基板02；如图2所示，所述第一基板01包括位于非显示区的多根相互平行的栅线10、多根相互平行的数据线20、多根与所述栅线10平行的第一触控电极走线30、多根与所述数据线20平行的第二触控电极走线40，所述第一基板01还包括与所述第一触控电极走线30电连接的第一触控电极 50、与所述第二触控电极走线40电连接的第二触控电极60；其中，相邻两根所述数据线20之间具有沿第一基板01同一行排列的两个子像素，一根所述第二触控电极走线40位于所述两个子像素之间；一对栅线10位于所述第一基板01的任意相邻两行子像素之间，一根所述第一触控电极走线30位于该对栅线10之间。
需要说明的是，由于所述触控显示面板中每个子像素的区域能透光，因此，本发明实施例中，非显示区是指除子像素的区域以外的不透光区域。例如任意相邻子像素之间的区域。
每个子像素例如可以包括薄膜晶体管。所述薄膜晶体管包括与栅线10电连接的栅极801、栅绝缘层、半导体有源层、与数据线20电连接的源极802、以及与像素电极70电连接的漏极803。这里，所述像素电极70与漏极803的电连接方式可以是直接电连接，也可是通过过孔电连接。
每根第一触控电极走线30可以连接多个第一触控电极50，每根第二触控电极走线40可以连接多个第二触控电极60。
图2中所示意的所述第一触控电极50和第二触控电极60的位置仅为示意性的，在本发明其他实施例中，上述两个电极的位置设置为能实现触控且不影响显示阶段的正常显示。例如，所述第一触控电极50和第二触控电极60均为透明电极。
由于第一触控电极50和第二触控电极60之间是相互绝缘的，因此，与所述第一触控电极50电连接的第一触控电极走线30、与所述第二触控电极60电连接的第二触控电极走线40之间也是绝缘的，例如，第一触控电极走线30和第二触控电极走线40不同层设置。
图2中所示意的第一触控电极50和第一触控电极走线30的电连接方式，第二触控电极60和第二触控电极走线40之间的电连接方式仅为示意性的，本领域技术人员能根据实际情况选择其他形式实现电连接。
由于在触控显示面板中子像素所占的面积非常微小，而触控时手指与显示面板的接触面积相对较大，因此，可依据触控精度，所述第二触控电极走线40无需设置在每相邻的两列子像素之间，即，可以隔几列子像素设置一根所述第二触控电极走线40。当然本发明实施例也可以在相邻的两列子像素之间均设置一根所述第二触控电极走线40，具体可根据实际情况进行设定，在 此不做限定。
同理，也可以隔几行子像素设置一根所述第一触控电极走线30，当然，也可以在任意相邻的每两行子像素之间均设置一根所述第一触控电极走线30，具体可根据实际情况进行设定，在此不做限定。
在上述实施例中，由于与所述第一触控电极50电连接的第一触控电极走线30、与所述第二触控电极60电连接的第二触控电极走线40分别设置在不透光的非显示区，因而可以避免对开口率的影响。
例如，如图3所示，所述第一触控电极50和所述第二触控电极60暴露于所述第一基板01的表面，且相对所述第一基板01的衬底基板，所述第一触控电极50和所述第二触控电极60远离所述衬底基板的上表面处于同一平面。
这里，所述第一触控电极50和所述第二触控电极60暴露于所述第一基板01的表面是指：从所述第一基板01整体来看，所述第一触控电极50和所述第二触控电极60位于所述第一基板01的最外层。
需要说明的是，所述第一触控电极50和所述第二触控电极60的上表面处于同一平面，并不代表整个第一触控电极50和整个所述第二触控电极60的上表面均处于同一平面，也可能是部分第一触控电极50和部分第二触控电极60的上表面处于同一平面。
如图3所示，所述第二基板02例如包括辅助隔垫物90以及覆盖所述辅助隔垫物90的第一透明电极100；其中，所述辅助隔垫物90与所述第一触控电极50和所述第二触控电极60在第一基板01的投影具有重叠部分，且覆盖所述辅助隔垫物90的所述第一透明电极100暴露于所述第二基板02的表面。
这里，本领域技术人员都知道，对于支撑盒厚的隔垫物，一般包括主隔垫物和辅助隔垫物两类，本发明实施例中的主隔垫物可根据目前的方式进行设定，在此不做限定。所述第一透明电极100可以是例如设置在所述第二基板02上的电极，此时，第一基板01除包括像素电极70外，还可以包括例如公共电极，即对于共平面切换型(In-Plane Switch，简称IPS)第一基板01而言，所述像素电极70和所述公共电极同层间隔设置，且均为条状电极；对于高级超维场转换型(Advanced-super Dimensional Switching，简称ADS)第 一基板而言，所述像素电极70和所述公共电极不同层设置，其中在上的电极为条状电极，在下的电极为板状电极。再例如，所述第一透明电极100可以就是公共电极。
所述第二基板02除包括辅助隔垫物90和第一透明电极100外，还可以包括例如黑矩阵，红、绿、蓝色滤光层等。这样，在触控时，由于手指的按压，便可通过辅助隔垫物90上的第一透明电极100将第一触控电极50和第二触控电极60导通，因而，给第一透明电极100、第一触控电极50和第二触控电极60三者中其中一个输入驱动信号，就可以确定出触控点的位置，相对现有技术中需要同时给第一触控电极走线和第二触控电极走线施加信号，本发明实施例提供了一种更简单的技术方案。
需要说明的是，如图3中仅示意性的绘示出位于第一基板01上的第一触控电极50和所述第二触控电极60，并不代表第一基板01只包括第一触控电极50和所述第二触控电极60。同理，也仅示意性的绘示出位于第二基板02上的辅助隔垫物90和第一透明电极100，并不代表第二基板02只包括辅助隔垫物90和第一透明电极100。
例如，所述第一触控电极50和所述第二触控电极60位于非显示区且同层设置。
这里，将所述第一触控电极50和所述第二触控电极60设置在非显示区，可不用占用透光的子像素区的面积，从而进一步避免了开口率减小。在此基础上，将第一触控电极50和所述第二触控电极60同层设置，即可通过一次构图工艺来形成，因此也可避免构图工艺次数的增加。
例如，可将所述第一触控电极50和所述第二触控电极60与设置在所述第一基板01上位于子像素区的像素电极40同层设置。
例如，结合图2和图4所示，所述第二触控电极走线40与所述数据线20同层设置，所述第二触控电极60通过过孔与所述第二触控电极走线40电连接；所述第一触控电极走线30与所述第一触控电极50同层设置；其中，所述第一基板01还包括位于所述第一触控电极50下方且与所述第二触控电极走线40同层的保留图案41。
这里，设置所述保留图案41目的是使其上方的第一触控电极50的上表面与设置在所述第二触控电极走线40上方的第二触控电极60的上表面处于 同一平面，这样在触控时由于手指的按压才能使第一透明电极100与第一触控电极50和第二触控电极60接触。
在TN(Twisted Nematic，扭曲向列)型液晶显示面板中，公共电极位于第二基板，因而，在触控阶段可直接使用公共电极来导通第一触控电极50和第二触控电极60，而无需再额外制作相应的导通第一触控电极50和第二触控电极60的电极，使得结构更为简化。
本发明实施例还提供一种触控显示面板的制备方法，包括形成第一基板01和第二基板02；如图1所示，形成所述第一基板01包括：形成包括位于非显示区的多根相互平行的栅线10、多根相互平行的数据线20、多根与所述栅线10平行的第一触控电极走线30、多根与所述数据线20平行的第二触控电极走线40，以及形成与所述第一触控电极走线30电连接的第一触控电极50、与所述第二触控电极走线40电连接的第二触控电极60的第一基板01；其中，相邻两根所述数据线20之间具有沿第一基板01同一行上排列的两个子像素，一根所述第二触控电极走线40位于所述两个子像素之间；一对所述栅线10位于所述第一基板01的相邻两行子像素之间，所述第一触控电极走线30位于一对所述栅线10之间。
由于与所述第一触控电极50电连接的第一触控电极走线30、与所述第二触控电极60电连接的第二触控电极走线40分别设置在不透光的非显示区，因而相比现有技术，本发明实施例可以避免对开口率的影响。
例如，如图3所示，形成所述第二基板02包括：形成包括辅助隔垫物90以及覆盖所述辅助隔垫物90的第一透明电极100的第二基板02。
所述辅助隔垫物90与所述第一触控电极50和所述第二触控电极60在第一基板01的投影具有重叠部分，且覆盖所述辅助隔垫物90的所述第一透明电极100暴露于所述第二基板02的表面。在此情况下，所述第一触控电极50和所述第二触控电极60也暴露于所述第一基板01的表面，且相对所述第一基板01的衬底基板，所述第一触控电极50和所述第二触控电极60远离衬底基板的上表面处于同一平面。
例如，所述第一触控电极50和所述第二触控电极60形成在非显示区、且通过一次构图工艺形成。
这里，将所述第一触控电极50和所述第二触控电极60设置在非显示区， 可不用占透光的子像素区的面积，从而避免了开口率减小。在此基础上，也可避免构图工艺次数的增加。
进一步的，例如可将所述第一触控电极50和所述第二触控电极60与位于所述第一基板01上位于子像素区的像素电极40在一次构图工艺中形成。
例如，结合图2和图4所示，在所述第一基板01上还形成位于所述第一触控电极50下方的保留图案41；所述第二触控电极走线40、所述保留图案41与所述数据线20通过一次构图工艺形成，其中，所述第二触控电极60通过过孔与所述第二触控电极走线40电连接；所述第一触控电极走线30与所述第一触控电极50一次构图工艺形成。
下面提供一种第一基板01的制作方法的示例，包括如下步骤：
S01、如图5a所示，在衬底基板上通过一次构图工艺形成多条栅线10、与每条栅线10电连接的两个栅极801。
例如，一对栅线10形成在所述第一基板01的待形成的任意相邻两行子像素之间。
S02、如图5b所示，在完成S01的基础上，形成栅绝缘层804，并形成半导体有源层805。
S03、如图5c所示，在完成S02的基础上，通过一次构图工艺形成数据线20、与所述数据线20电连接的源极802、漏极803、以及第二触控电极走线40、保留图案41。
例如，在所述第一基板01的每行待形成的子像素中，相邻两根所述数据线20之间具有沿所述第一基板01同一行排列的两个子像素，每根所述第二触控电极走线40位于所述两个子像素之间。所述保留图案41位于待形成的所述第一触控电极50的下方。
这里，所述第二触控电极走线40无需设置在每相邻的两列子像素之间，即，可以隔几列子像素设置一根所述第二触控电极走线40。所述第二触控电极走线40以相同间隔均匀分布在衬底基板上，也可以不同间隔分布在衬底基板上。
S04、如图2所示，在完成S03的基础上，形成保护层，并在保护层上形成第一触控电极走线30、与所述第一触控电极走线30电连接的第一触控电极50、第二触控电极60、以及像素电极70。
例如，所述保护层包括露出所述漏极803的第一过孔和露出第二触控电极走线40的第二过孔；所述像素电极70通过第一过孔与所述漏极803电连接，所述第二触控电极60通过第二过孔与所述第二触控电极走线40电连接。
这里，每对所述栅线10之间均设置有所述第一触控电极走线30。然而，也可以隔几行子像素设置一根所述第一触控电极走线30。所有所述第一触控电极走线30以相同间隔均匀分布在衬底基板上，也可以不同间隔分布在衬底基板上。
在一个示例中，第二基板的制作方法，包括：将辅助隔垫物90形成在与所述第一触控电极50和所述第二触控电极60对应的位置处，且使所述辅助隔垫物90与所述第一触控电极50和所述第二触控电极60在第一基板01的投影具有重叠部分；然后，形成透明电极。
本发明实施例还提供一种图1所示的触控显示面板的触摸检测方法，包括：在触控阶段，向位于第二基板02上的第一透明电极100施加驱动信号；通过位于第一基板01上与第一触控电极50电连接的第一触控电极走线30、与第二触控电极60电连接的第二触控电极走线40上信号的变化，确定触点坐标。
本发明实施例的第一基板01中,所述第一触控电极50和所述第二触控电极60暴露于所述第一基板01的表面，且相对所述第一基板01的衬底基板，所述第一触控电极50和所述第二触控电极60的上表面处于同一平面。第二基板02包括辅助隔垫物90以及覆盖所述辅助隔垫物的第一透明电极100；其中，所述辅助隔垫物90与所述第一触控电极50和所述第二触控电极60在第一基板01的投影具有重叠部分，且覆盖所述辅助隔垫物90的所述第一透明电极50暴露于所述第二基板02的表面。
在触控时，由于手指的按压，便可通过辅助隔垫物90上的第一透明电极100将第一触控电极50和第二触控电极60导通，因而，在给位于第二基板02上的第一透明电极100施加驱动信号时，相应的，在该触控位置处，与第一触控电极50电连接的第一触控电极走线30、与第二触控电极60电连接的第二触控电极走线40的信号发生变化，从而据此可以确定出触点的坐标。
本发明实施例还提供一种图1所示的触控显示面板的触摸检测方法，包括：在触控阶段，向位于第一基板01上与第一触控电极50电连接的第一触 控电极走线30或与第二触控电极60电连接的第二触控电极走线40施加驱动信号；通过位于所述第一触控电极走线30和所述第二触控电极走线40上信号的变化，确定触点坐标。
本发明实施例的第一基板01中，所述第一触控电极50和所述第二触控电极60暴露于所述第一基板01的表面，且相对所述第一基板01的衬底基板，所述第一触控电极50和所述第二触控电极60的上表面处于同一平面。第二基板02包括辅助隔垫物90以及覆盖所述辅助隔垫物的第一透明电极100；其中，所述辅助隔垫物90与所述第一触控电极50和所述第二触控电极60在第一基板01的投影具有重叠部分，且覆盖所述辅助隔垫物90的所述第一透明电极50暴露于所述第二基板02的表面。
在触控时，由于手指的按压，便可通过辅助隔垫物90上的第一透明电极100将第一触控电极50和第二触控电极60导通，因而，在给位于第一基板01上的第一触控电极走线30或第二触控电极走线40施加驱动信号时，相应的，在该触控位置处，另一条触控电极走线上的信号发生变化，从而据此可以确定出触点的坐标。
以上所述仅是本发明的示范性实施方式，而非用于限制本发明的保护范围，本发明的保护范围由所附的权利要求确定。
本申请基于并且要求于2015年4月27日递交的中国专利申请第201510206073.0号的优先权，在此全文引用上述中国专利申请公开的内容。

Claims (12)

  1. 一种触控显示面板，包括第一基板和第二基板，其中所述第一基板包括：
    位于非显示区的多根相互平行的栅线、多根相互平行的数据线、多根与所述栅线平行的第一触控电极走线、多根与所述数据线平行的第二触控电极走线，还包括与所述第一触控电极走线电连接的第一触控电极、与所述第二触控电极走线电连接的第二触控电极；
    相邻两根所述数据线之间具有沿第一基板同一行排列的两个子像素，一根所述第二触控电极走线位于所述两个子像素之间；
    一对所述栅线位于所述第一基板的任意相邻两行子像素之间，一根所述第一触控电极走线位于该对栅线之间。
  2. 根据权利要求1所述的触控显示面板，其中，所述第二基板包括辅助隔垫物以及覆盖所述辅助隔垫物的第一透明电极；
    所述辅助隔垫物与所述第一触控电极和所述第二触控电极在第一基板的投影具有重叠部分，且覆盖所述辅助隔垫物的所述第一透明电极为所述第二基板的最外层；
    所述第一触控电极和所述第二触控电极为所述第一基板的最外层，且相对所述第一基板的衬底基板，所述第一触控电极和所述第二触控电极远离所述衬底基板的上表面处于同一平面。
  3. 根据权利要求2所述的触控显示面板，其中，所述第一触控电极和所述第二触控电极位于非显示区且同层设置。
  4. 根据权利要求3所述的触控显示面板，其中，所述第二触控电极走线与所述数据线同层设置，所述第二触控电极通过过孔与所述第二触控电极走线电连接；
    所述第一触控电极走线与所述第一触控电极同层设置；
    其中，所述第一基板还包括位于所述第一触控电极下方且与所述第二触控电极走线同层的保留图案。
  5. 根据权利要求3所述的触控显示面板，其中，所述第一透明电极为公共电极。
  6. 一种触控显示面板的制备方法，包括形成第一基板和第二基板；其中，
    形成所述第一基板包括：形成包括位于非显示区的多根相互平行的栅线、多根相互平行的数据线、多根与所述栅线平行的第一触控电极走线、多根与所述数据线平行的第二触控电极走线，以及形成与所述第一触控电极走线电连接的第一触控电极、与所述第二触控电极走线电连接的第二触控电极的第一基板；
    相邻两根所述数据线之间具有沿第一基板同一行排列的两个子像素，一根所述第二触控电极走线位于所述两个子像素之间；
    一对所述栅线位于所述第一基板的任意相邻两行子像素之间，一根所述第一触控电极走线位于该对栅线之间。
  7. 根据权利要求6所述的方法，其中，
    形成所述第二基板包括：形成包括辅助隔垫物以及覆盖所述辅助隔垫物的第一透明电极的第二基板；
    其中，所述辅助隔垫物与所述第一触控电极和所述第二触控电极在第一基板的投影具有重叠部分，且覆盖所述辅助隔垫物的所述第一透明电极暴露于所述第二基板的表面；
    所述第一触控电极和所述第二触控电极暴露于所述第一基板的表面，且相对所述第一基板的衬底基板，所述第一触控电极和所述第二触控电极远离所述衬底基板的上表面处于同一平面。
  8. 根据权利要求7所述的方法，其中，所述第一触控电极和所述第二触控电极形成在非显示区、且通过一次构图工艺形成。
  9. 根据权利要求8所述的方法，其中，在所述第一基板上还形成位于所述第一触控电极下方的保留图案；
    所述第二触控电极走线、所述保留图案与所述数据线通过一次构图工艺形成，其中，所述第二触控电极通过过孔与所述第二触控电极走线电连接；
    所述第一触控电极走线与所述第一触控电极通过一次构图工艺形成。
  10. 根据权利要求8所述的方法，其中，所述第一透明电极为公共电极。
  11. 一种根据权利要求1所述的触控显示面板的触摸检测方法，包括：
    在触控阶段，向位于第二基板上的第一透明电极施加驱动信号；
    通过位于第一基板上与第一触控电极电连接的第一触控电极走线、与第 二触控电极电连接的第二触控电极走线上信号的变化，确定触点坐标。
  12. 一种根据权利要求1所述的触控显示面板的触摸检测方法，包括：
    在触控阶段，向位于第一基板上与第一触控电极电连接的第一触控电极走线或与第二触控电极电连接的第二触控电极走线施加驱动信号；
    通过位于所述第一触控电极走线和所述第二触控电极走线上信号的变化，确定触点坐标。
PCT/CN2016/077057 2015-04-27 2016-03-23 触控显示面板及其制备方法、触摸检测方法 WO2016173340A1 (zh)

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