WO2014183393A1 - Touch positioning structure and manufacturing method therefor, touchscreen, and display apparatus - Google Patents

Touch positioning structure and manufacturing method therefor, touchscreen, and display apparatus Download PDF

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Publication number
WO2014183393A1
WO2014183393A1 PCT/CN2013/086784 CN2013086784W WO2014183393A1 WO 2014183393 A1 WO2014183393 A1 WO 2014183393A1 CN 2013086784 W CN2013086784 W CN 2013086784W WO 2014183393 A1 WO2014183393 A1 WO 2014183393A1
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WO
WIPO (PCT)
Prior art keywords
signal line
layer
pyroelectric
positioning structure
conductive layer
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Application number
PCT/CN2013/086784
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French (fr)
Chinese (zh)
Inventor
李凡
Original Assignee
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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Publication of WO2014183393A1 publication Critical patent/WO2014183393A1/en

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Classifications

    • 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
    • G06F3/044—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means by capacitive means
    • G06F3/0446—Digitisers, 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
    • 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
    • G06F3/044—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means by capacitive means
    • G06F3/0445—Digitisers, 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
    • 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 a touch positioning structure, a method of fabricating the same, a touch screen, and a display device. Background technique
  • the touch screen is the most convenient, natural and natural human-computer interaction method. It gives multimedia a new look and is an attractive new multimedia interactive device.
  • the touch screen can be divided into four types: resistive, capacitive, infrared, and surface acoustic wave.
  • Each type of touch screen has its own advantages and disadvantages.
  • the resistive touch screen is positioned accurately, but its price is high and it is afraid of scratching.
  • the capacitive touch screen design is reasonable, but its image distortion problem ⁇ ⁇ is fundamentally solved.
  • the infrared touch screen is immune to current, voltage and static interference and is suitable for harsh environmental conditions, but it is sensitive to light environmental factors.
  • the surface acoustic wave touch screen has a clear picture and is not easily damaged. It is suitable for various occasions.
  • the disadvantage is that if there are water droplets and dust on the surface of the screen, the touch screen will become dull or even not working. Summary of the invention
  • Embodiments of the present invention provide a touch positioning structure and a method of fabricating the same, a touch screen, and a display device for sensing a touch position by temperature.
  • an embodiment of the present invention provides a touch positioning structure, including:
  • the first conductive layer includes a plurality of first signal lines
  • the second conductive layer includes a plurality of second signal lines, the second signal line is in contact with the pyroelectric layer, and the second signal line Intersecting with the first signal line and without electrical connection.
  • the touch location structure further includes: An insulating layer between the first conductive layer and the pyroelectric layer, wherein a via hole is formed on the insulating layer at a position where the second signal line intersects with the first signal line.
  • the pyroelectric layer is in contact with the first signal line through a via hole in the insulating layer.
  • the pyroelectric layer comprises a plurality of non-contacting pyroelectric material patterns, and the pyroelectric material pattern is located at a position where the second signal line intersects with the first signal line.
  • the first signal line and/or the second signal line are linear.
  • the first signal line and/or the second signal line comprise a plurality of conductive patterns connected in a row.
  • the plurality of first signal lines are parallel to each other
  • the plurality of second signal lines are parallel to each other
  • the first signal line and the second signal line are perpendicular.
  • the pyroelectric layer is a continuous film layer structure between the first conductive layer and the second conductive layer.
  • the touch positioning structure further includes a detecting circuit that detects a signal change of the plurality of first signal lines and the plurality of second signal lines.
  • the present invention also provides a touch screen comprising two substrates disposed opposite each other, wherein any one of the above-described touch positioning structures is disposed on an outwardly facing surface of one of the substrates.
  • the invention also provides a display device comprising the touch screen described above.
  • the present invention also provides a method of fabricating a touch positioning structure, comprising: forming a first conductive layer on a substrate, the first conductive layer comprising: a plurality of first signal lines; Forming a pyroelectric layer on a substrate of the first conductive layer; the pyroelectric layer is in contact with the first signal line;
  • the second conductive layer includes a plurality of second signal lines; and the second signal line is in contact with the pyroelectric layer The second signal line crosses the first signal line and is not electrically connected.
  • the method before forming the pyroelectric layer, the method further includes:
  • An insulating layer having a via hole is formed on the substrate on which the first conductive layer is formed; and the via hole is located at an intersection of the second signal line and the first signal line.
  • the pyroelectric layer is formed as a plurality of non-contacting pyroelectric material patterns, and the pyroelectric material pattern is located at a position where the second signal line intersects with the first signal line.
  • the touch positioning structure provided by the invention, the manufacturing method thereof, the touch screen and the display device, if the heat release The portion of the electrical layer at the touch position is different from the temperature of the touch body, and a charge change is generated, and the changed electrical signal is output through the first signal line and the second signal line; the first signal line and the second signal are outputted by the change signal The intersection of the signal lines determines the touch location. Thereby, the temperature difference between the touch body and the pyroelectric layer is reached, and the touch position is sensed. If the touch positioning structure is applied to the touch screen, the temperature of the pyroelectric layer is the temperature of the screen, and the touch screen can sense the touch position by the temperature difference between the touch body and the screen.
  • FIG. 1 is a schematic cross-sectional view of a touch positioning structure according to an embodiment of the present invention
  • FIG. 2 is a schematic cross-sectional view of another touch positioning structure according to an embodiment of the present invention
  • FIG. 3 is a schematic top view of a touch positioning structure according to an embodiment of the present invention
  • FIG. 4 is a schematic top view of another touch positioning structure according to an embodiment of the present invention
  • FIG. 5 is a schematic structural diagram of a touch screen according to an embodiment of the present invention
  • FIG. 6 is a flowchart of a method for manufacturing a touch positioning structure according to an embodiment of the present invention
  • FIGS. 7-8 are schematic diagrams showing a process for manufacturing the touch positioning structure shown in FIG. 4;
  • FIG. 9 is a flowchart of a method for manufacturing another touch positioning structure according to an embodiment of the present invention. detailed description
  • the embodiment of the invention provides a novel touch positioning structure.
  • the working principle of the touch positioning structure is to sense the touch position by the temperature difference between the touch body and the pyroelectric layer.
  • the touch positioning structure 1 provided in this embodiment includes:
  • the first conductive layer 11 includes a plurality of first signal lines 111; a pyroelectric layer 13 above the first conductive layer 11; the pyroelectric layer 13 is in contact with the first signal line 111;
  • a second conductive layer 12 located above the pyroelectric layer 13; the second conductive layer 12 includes a plurality of second signal lines 121; the second signal line 121 is in contact with the pyroelectric layer 13 The second signal line 121 crosses the first signal line 111 and is not electrically connected.
  • no electricity connection is to guide the two sides to be separated by an insulating material, or by a weakly conductive (weak to negligible) material; of course, other methods are not excluded, in short, as long as the electric charge can be made Do not affect each other, or the impact can be ignored.
  • “Thin film” means a film formed by deposition or the like. If the “film” does not require a patterning process throughout the manufacturing process, the “film” may also be referred to as a “layer”; if the “film” still requires a patterning process throughout the manufacturing process, it is referred to as "before the patterning process”. The film “ is called a “layer” after the patterning process. The “layer” after the patterning process contains at least one film "pattern”.
  • the above pyroelectric layer 13 means a layer structure having a pyroelectric effect.
  • the so-called pyroelectric effect refers to the phenomenon that the polarization of the dielectric changes with temperature. When the temperature changes, the polarization changes, the original free charge can no longer completely shield the bound charge, and then there is a free charge on the surface, which forms an electric field in the nearby space, which attracts or repels the charged particles.
  • the dielectric is connected to an external circuit, current can be observed in the circuit, and the current is reversed in both cases of temperature rise and temperature drop. Thereby the change in temperature is converted into electrical properties.
  • the pyroelectric layer 13 is in contact with the first signal line 111 and the second signal line 121, respectively, and the first signal line 111 and the second signal line 121 intersect, so when located in the two signals
  • the change in charge caused by partial heating and cooling of the pyroelectric layer 13 at the intersection of the lines 111, 121 can be conducted through the two signal lines 111, 121. If the detection circuit is further connected (connected to both the first signal line 111 and the second signal line 121), the position of the temperature change can be determined.
  • the pyroelectric layer 13 may be a layer structure composed of at least one pyroelectric material or a layer structure doped with at least one pyroelectric material.
  • the pyroelectric material refers to a material having a pyroelectric effect, and examples thereof may be a tripeptide of sulphate, a lead lanthanum zirconate titanate, a transparent ceramic and a polymer film, a single crystal material (LiTa0 3 or the like), a piezoelectric ceramic ( One of PZT, etc.).
  • the touch positioning structure 1 provided in this embodiment further includes: An insulating layer 14 between the first conductive layer 11 and the pyroelectric layer 13; at the intersection of the second signal line 121 and the first signal line 111, the insulating layer 14 is formed over The holes are such that the pyroelectric layer 13 is in contact with the first signal line 111. That is, the pyroelectric layer 14 is in contact with the first signal line 111 through a via hole in the insulating layer 14.
  • the insulating layer 14 may be continuously distributed between the first conductive layer 11 and the second conductive layer and have via holes at the intersecting positions.
  • the embodiment of the present invention is not limited thereto, and may include a plurality of insulating layer patterns distributed at intersections with the first signal line in and the second signal line 121.
  • first signal line 111 in the first conductive layer 11 and the second signal line 121 in the second conductive layer 12 may be continuous shapes, for example, a straight line, a curved line, or the like.
  • the pyroelectric layer may be of any shape capable of contacting the first signal line 111 and the second signal line 121 at least at the intersection, and may be, for example, the entire film or a plurality of patterns at the intersection. When the pyroelectric layer is the entire film, it is continuously distributed between the first conductive layer 11 and the second conductive layer 12.
  • Fig. 1 or Fig. 2 is a schematic view of the A-A section of Fig. 3, and Fig. 1 or Fig. 2 can also be used as a schematic view of the A-A section of Fig. 4, wherein neither the insulating layer is shown in Figs. 3 and 4.
  • the first signal line 111 in the first conductive layer 11 is linear
  • the second signal line 121 in the second conductive layer 12 is linear.
  • one of the two signal lines 111, 121 is a straight line, and the other is also arbitrarily any other continuous shape, such as a curved shape or the like.
  • the plurality of first signal lines 111 are parallel to each other, the plurality of second signal lines 121 are two and two parallel, and the first signal line 111 and the second signal line 121 are perpendicular. It should be noted that the parallel and vertical directions between the signal lines described herein refer to parallel and vertical directions in the extending direction.
  • the touch positioning structure 1 is applied to the touch screen, it is preferable that the plurality of first signal lines 111 and the plurality of second signal lines 121 are evenly distributed, such that the two signal lines 111, 121 The distribution of the intersection positions is also uniform.
  • the pyroelectric layer 13 includes a plurality of pyroelectric material patterns 131 that are not in contact with each other; the pyroelectric material pattern 131 is located on the second signal line 121 and the first A signal line 111 intersects at a position.
  • the first signal line 111 in the first conductive layer 11 includes a plurality of conductive patterns connected in a row, and the conductive pattern illustrated in FIG. 4 is a diamond shape, and may also be any shape such as a circle or a rectangle;
  • the second signal line 121 in the two conductive layers 12 is linear.
  • one of the two signal lines 111, 121 includes a plurality of conductive patterns connected in a row, and the other may be any other continuous shape, such as: a straight line, a curved shape, a plurality of conductive patterns connected in a row, and the like.
  • both signal lines 111, 121 include a plurality of conductive patterns connected in a row.
  • the plurality of first signal lines 111 are parallel to each other, the plurality of second signal lines 121 are two and two parallel, and the first signal line 111 and the second signal line 121 are perpendicular. It should be noted that the parallel and vertical directions between the signal lines described herein refer to parallel and vertical directions in the extending direction.
  • the touch positioning structure 1 is applied to the touch screen, it is preferable that the plurality of first signal lines 111 and the plurality of second signal lines 121 are evenly distributed, so that the distribution of the intersection positions of the two signal lines 111 and 121 is also average.
  • the pyroelectric layer 13 includes a plurality of pyroelectric material patterns 131 that are not in contact with each other; the pyroelectric material pattern 131 is located on the second signal line 121 and the first A signal line 111 intersects at a position.
  • the pyroelectric material pattern 131 shown in FIG. 4 is slightly smaller than the diamond-shaped conductive pattern of the first signal line 111, so an insulating layer 14 needs to be disposed between the first conductive layer 11 and the pyroelectric layer 13. .
  • the pyroelectric material pattern 131 may be set larger to cover the conductive pattern of the first signal line 111. In short, the first signal line 111 and the second signal line 121 are not electrically connected.
  • the touch positioning structure provided by the present invention generates a charge change if a portion of the pyroelectric layer at the touch position is different from the temperature of the touch body, and outputs the changed electrical signal through the first signal line and the second signal line;
  • the touch position can be determined by outputting the intersection position of the first signal line and the second signal line of the change signal. Thereby, the temperature difference between the touch body and the pyroelectric layer is reached, and the touch position is sensed.
  • any of the touch positioning structures 1 provided above can be applied to a touch screen.
  • the embodiment of the invention provides a touch screen comprising two substrates 2, 3 disposed opposite each other, and any one of the above-mentioned touch positioning structures 1 is disposed on an outwardly facing surface of one of the substrates 2.
  • the touch screen is applied in a liquid crystal display
  • the substrates 2, 3 may be an array substrate and a color film substrate.
  • the substrate 2 is a color filter substrate
  • the substrate 3 is an array substrate.
  • the color film substrate serves as the base of the touch positioning structure 1.
  • the touch screen is applied to an OLED (Organic Electroluminescence Display) display
  • the substrate 2 may be a package substrate
  • the substrate 3 may be an array substrate.
  • the package substrate serves as the base of the touch positioning structure 1.
  • An embodiment of the present invention further provides a display device, including any of the above touch screens, which may be a liquid crystal panel, an OLED panel, a display, a television, a notebook computer, a digital photo frame, a mobile phone, a tablet computer, a navigator. Any product or part that has a display function.
  • a display device including any of the above touch screens, which may be a liquid crystal panel, an OLED panel, a display, a television, a notebook computer, a digital photo frame, a mobile phone, a tablet computer, a navigator. Any product or part that has a display function.
  • the display device can be widely applied. Since the temperature of the human body is constant, and the temperature of the surface of the display device is basically room temperature, when the human body touches the screen, there is a temperature difference at the touch position, and a portion of the pyroelectric layer located at the touch position is generated. The change in charge, and the signal output from the first signal line and the second signal line, can determine the position of the finger touch.
  • the touch screen and the display device provided by the embodiments of the present invention sense the touch position by the temperature difference between the touch body and the pyroelectric layer due to the touch positioning structure; and the pyroelectric power when the touch positioning structure is applied to the touch screen or the display device
  • the temperature of the layer is the temperature of the screen, and the touch screen can sense the touch position by the temperature difference between the touch body and the screen.
  • an embodiment of the present invention provides a method for manufacturing a touch positioning structure, including:
  • first conductive layer 11 on the bottom of the village, the first conductive layer 11 comprising: a plurality of first signal lines 111.
  • the pyroelectric layer 13 may be formed on the substrate on which only the first conductive layer 11 is formed. Alternatively, if other layers are formed before the formation of the pyroelectric layer after forming the first conductive layer, for example: an insulating layer or the like. Then, this step forms the pyroelectric layer 13 on the substrate on which the first conductive layer and other layers are formed. For example, if the touch positioning structure shown in FIG. 4 is formed, the structure formed by this step is shown in FIG. 8.
  • a second conductive layer 12 is formed on a substrate on which at least the pyroelectric layer 13 is formed.
  • the second conductive layer 12 includes a plurality of second signal lines 121; the second signal lines 121 are in contact with the pyroelectric layer 13 , and the second signal lines 121 intersect the first signal lines 111 and No electrical connection.
  • the second conductive layer 12 may be formed on the substrate on which only the first conductive layer 11 and the pyroelectric layer 13 are formed.
  • this step forms the second conductive layer 12 on the substrate on which the first conductive layer 11, the pyroelectric layer 13, and other layers are formed.
  • the touch positioning structure shown in FIG. 4 is formed.
  • the above-described touch positioning structure can be manufactured, which can sense the touch position by the temperature difference between the touch body and the pyroelectric layer.

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Human Computer Interaction (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Position Input By Displaying (AREA)

Abstract

Embodiments of the present invention disclose a touch positioning structure and a manufacturing method therefor, a touchscreen, and a display apparatus. The touch positioning structure comprises: a first conducting layer comprising multiple first signal lines; a pyroelectric layer located above the first conducting layer and contacting the first signal lines; and a second conducting layer located above the pyroelectric layer and comprising multiple second signal lines. The second signal lines contact the pyroelectric layer, and the second signal lines and the first signal lines are intersected and are connected in a non-electric manner.

Description

触摸定位结构及其制造方法、 触摸屏和显示装置 技术领域  Touch positioning structure and manufacturing method thereof, touch screen and display device
本发明的实施例涉及一种触摸定位结构及其制造方法、 触摸屏和显示装 置。 背景技术  Embodiments of the present invention relate to a touch positioning structure, a method of fabricating the same, a touch screen, and a display device. Background technique
触摸屏作为一种最新的电脑输入设备， 它是目前最筒单、 方便、 自然的 一种人机交互方式。 它赋予了多媒体以崭新的面貌， 是极富吸引力的全新多 媒体交互设备。  As the latest computer input device, the touch screen is the most convenient, natural and natural human-computer interaction method. It gives multimedia a new look and is an attractive new multimedia interactive device.
按照触摸屏的工作原理可以把触摸屏分为四种，分别为电阻式、 电容式、 红外线式以及表面声波式。 每一类触摸屏都有其各自的优缺点。 电阻式触摸 屏的定位准确， 但其价格颇高， 且怕刮易损。 电容式触摸屏设计构思合理， 但其图像失真问题^ ^得到根本解决。 红外线式触摸屏不受电流、 电压和静 电干扰， 适宜恶劣的环境条件， 但其对光照环境因素比较敏感。 表面声波式 触摸屏的画面清晰、 且不容易被损坏， 适于各种场合， 缺点是屏幕表面如果 有水滴和尘土会使触摸屏变的迟钝， 甚至不工作。 发明内容  According to the working principle of the touch screen, the touch screen can be divided into four types: resistive, capacitive, infrared, and surface acoustic wave. Each type of touch screen has its own advantages and disadvantages. The resistive touch screen is positioned accurately, but its price is high and it is afraid of scratching. The capacitive touch screen design is reasonable, but its image distortion problem ^ ^ is fundamentally solved. The infrared touch screen is immune to current, voltage and static interference and is suitable for harsh environmental conditions, but it is sensitive to light environmental factors. The surface acoustic wave touch screen has a clear picture and is not easily damaged. It is suitable for various occasions. The disadvantage is that if there are water droplets and dust on the surface of the screen, the touch screen will become dull or even not working. Summary of the invention
本发明的实施例提供一种触摸定位结构及其制造方法、 触摸屏和显示装 置， 用以通过温度感应到触摸位置。  Embodiments of the present invention provide a touch positioning structure and a method of fabricating the same, a touch screen, and a display device for sensing a touch position by temperature.
一方面， 本发明实施例提供了一种触摸定位结构， 包括：  In one aspect, an embodiment of the present invention provides a touch positioning structure, including:
第一导电层， 所述第一导电层包括多条第一信号线；  a first conductive layer, the first conductive layer includes a plurality of first signal lines;
位于所述第一导电层上方的热释电层， 所述热释电层与所述第一信号线 接触；  a pyroelectric layer above the first conductive layer, the pyroelectric layer being in contact with the first signal line;
位于所述热释电层上方的第二导电层， 所述第二导电层包括多条第二信 号线， 所述第二信号线与所述热释电层接触， 且所述第二信号线与所述第一 信号线交叉且无电连接。  a second conductive layer above the pyroelectric layer, the second conductive layer includes a plurality of second signal lines, the second signal line is in contact with the pyroelectric layer, and the second signal line Intersecting with the first signal line and without electrical connection.
可选的， 上述触摸定位结构还包括： 位于所述第一导电层和所述热释电层之间的绝缘层， 在所述第二信号线 与所述第一信号线的交叉位置处， 所述绝缘层上形成有过孔。 Optionally, the touch location structure further includes: An insulating layer between the first conductive layer and the pyroelectric layer, wherein a via hole is formed on the insulating layer at a position where the second signal line intersects with the first signal line.
可选的，所述热释电层通过所述绝缘层中的过孔与所述第一信号线接触。 可选的， 所述热释电层包括多个互不接触的热释电材料图案， 所述热释 电材料图案位于所述第二信号线与所述第一信号线交叉位置处。  Optionally, the pyroelectric layer is in contact with the first signal line through a via hole in the insulating layer. Optionally, the pyroelectric layer comprises a plurality of non-contacting pyroelectric material patterns, and the pyroelectric material pattern is located at a position where the second signal line intersects with the first signal line.
可选的， 所述第一信号线和 /或所述第二信号线为直线形。  Optionally, the first signal line and/or the second signal line are linear.
可选的，所述第一信号线和 /或所述第二信号线包括连成一排的多个导电 图案。  Optionally, the first signal line and/or the second signal line comprise a plurality of conductive patterns connected in a row.
可选的，所述多条第一信号线两两平行，所述多条第二信号线两两平行， 且所述第一信号线和所述第二信号线垂直。  Optionally, the plurality of first signal lines are parallel to each other, the plurality of second signal lines are parallel to each other, and the first signal line and the second signal line are perpendicular.
可选的， 所述热释电层为位于所述第一导电层和所述第二导电层之间的 连续膜层结构。  Optionally, the pyroelectric layer is a continuous film layer structure between the first conductive layer and the second conductive layer.
可选的， 所述触摸定位结构还包括检测所述多条第一信号线和所述多条 第二信号线上的信号变化的检测电路。  Optionally, the touch positioning structure further includes a detecting circuit that detects a signal change of the plurality of first signal lines and the plurality of second signal lines.
一方面， 本发明还提供了一种触摸屏， 包括相对设置的两个基板， 在其 中一个基板的朝外的表面上设置有上述任一种触摸定位结构。  In one aspect, the present invention also provides a touch screen comprising two substrates disposed opposite each other, wherein any one of the above-described touch positioning structures is disposed on an outwardly facing surface of one of the substrates.
一方面， 本发明还提供了一种显示装置， 包括上述的触摸屏。  In one aspect, the invention also provides a display device comprising the touch screen described above.
一方面， 本发明还提供了一种触摸定位结构的制造方法， 包括： 在村底上形成第一导电层， 所述第一导电层包括： 多条第一信号线； 在至少形成有所述第一导电层的村底上， 形成热释电层； 所述热释电层 与所述第一信号线接触；  In one aspect, the present invention also provides a method of fabricating a touch positioning structure, comprising: forming a first conductive layer on a substrate, the first conductive layer comprising: a plurality of first signal lines; Forming a pyroelectric layer on a substrate of the first conductive layer; the pyroelectric layer is in contact with the first signal line;
在至少形成有所述热释电层的村底上， 形成第二导电层； 所述第二导电 层包括多条第二信号线； 所述第二信号线与所述热释电层接触， 所述第二信 号线与所述第一信号线交叉且无电连接。  Forming a second conductive layer on a substrate on which at least the pyroelectric layer is formed; the second conductive layer includes a plurality of second signal lines; and the second signal line is in contact with the pyroelectric layer The second signal line crosses the first signal line and is not electrically connected.
可选的， 在形成热释电层之前还包括：  Optionally, before forming the pyroelectric layer, the method further includes:
在形成有所述第一导电层的村底上， 形成具有过孔的绝缘层； 所述过孔 位于所述第二信号线与所述第一信号线的交叉位置处。  An insulating layer having a via hole is formed on the substrate on which the first conductive layer is formed; and the via hole is located at an intersection of the second signal line and the first signal line.
可选的， 所述热释电层形成为多个互不接触的热释电材料图案， 所述热 释电材料图案位于所述第二信号线与所述第一信号线交叉位置处。  Optionally, the pyroelectric layer is formed as a plurality of non-contacting pyroelectric material patterns, and the pyroelectric material pattern is located at a position where the second signal line intersects with the first signal line.
本发明提供的触摸定位结构及其制造方法、 触摸屏和显示装置， 若热释 电层在触摸位置处的部分与触摸体温度不同， 则产生电荷变化， 并通过第一 信号线和第二信号线将变化后的电信号输出； 由输出变化信号的第一信号线 和第二信号线的交叉位置， 就可以确定触摸位置。 从而达到了通过触摸体与 热释电层间的温度差异， 感应到触摸位置。 若触摸定位结构应用于触摸屏， 热释电层的温度即是屏幕的温度， 那么该触摸屏能够通过触摸体与屏幕间的 温度差异， 感应到触摸位置。 附图说明 The touch positioning structure provided by the invention, the manufacturing method thereof, the touch screen and the display device, if the heat release The portion of the electrical layer at the touch position is different from the temperature of the touch body, and a charge change is generated, and the changed electrical signal is output through the first signal line and the second signal line; the first signal line and the second signal are outputted by the change signal The intersection of the signal lines determines the touch location. Thereby, the temperature difference between the touch body and the pyroelectric layer is reached, and the touch position is sensed. If the touch positioning structure is applied to the touch screen, the temperature of the pyroelectric layer is the temperature of the screen, and the touch screen can sense the touch position by the temperature difference between the touch body and the screen. DRAWINGS
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 筒单地介绍，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。  In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings of the embodiments will be briefly described below. It is obvious that the drawings in the following description relate only to some embodiments of the present invention, rather than to the present invention. limit.
图 1为本发明实施例提供的一种触摸定位结构的截面示意图；  1 is a schematic cross-sectional view of a touch positioning structure according to an embodiment of the present invention;
图 2为本发明实施例提供的另一种触摸定位结构的截面示意图； 图 3为本发明实施例提供的一种触摸定位结构的俯视示意图；  2 is a schematic cross-sectional view of another touch positioning structure according to an embodiment of the present invention; FIG. 3 is a schematic top view of a touch positioning structure according to an embodiment of the present invention;
图 4为本发明实施例提供的另一种触摸定位结构的俯视示意图； 图 5为本发明实施例提供的一种触摸屏的结构示意图；  4 is a schematic top view of another touch positioning structure according to an embodiment of the present invention; FIG. 5 is a schematic structural diagram of a touch screen according to an embodiment of the present invention;
图 6为本发明实施例提供的一种触摸定位结构的制造方法流程图； 图 7-图 8为制造图 4所示的触摸定位结构的过程中的示意图；  6 is a flowchart of a method for manufacturing a touch positioning structure according to an embodiment of the present invention; and FIGS. 7-8 are schematic diagrams showing a process for manufacturing the touch positioning structure shown in FIG. 4;
图 9为本发明实施例提供的另一种触摸定位结构的制造方法流程图。 具体实施方式  FIG. 9 is a flowchart of a method for manufacturing another touch positioning structure according to an embodiment of the present invention. detailed description
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。  The technical solutions of the embodiments of the present invention are clearly and completely described in the following with reference to the accompanying drawings of the embodiments of the present invention. It is apparent that the described embodiments are part of the embodiments of the invention, rather than all of the embodiments. All other embodiments obtained by a person of ordinary skill in the art based on the described embodiments of the present invention without departing from the scope of the invention are within the scope of the invention.
本发明实施例提供了一种新型的触摸定位结构， 该触摸定位结构的工作 原理是通过触摸体与热释电层间的温度差异， 感应到触摸位置。  The embodiment of the invention provides a novel touch positioning structure. The working principle of the touch positioning structure is to sense the touch position by the temperature difference between the touch body and the pyroelectric layer.
如图 1所示， 本实施例提供的触摸定位结构 1包括：  As shown in FIG. 1, the touch positioning structure 1 provided in this embodiment includes:
第一导电层 11; 所述第一导电层 11包括多条第一信号线 111; 位于所述第一导电层 11上方的热释电层 13;所述热释电层 13与所述第 一信号线 111接触； a first conductive layer 11; the first conductive layer 11 includes a plurality of first signal lines 111; a pyroelectric layer 13 above the first conductive layer 11; the pyroelectric layer 13 is in contact with the first signal line 111;
位于所述热释电层 13上方的第二导电层 12;所述第二导电层 12包括多 条第二信号线 121; 所述第二信号线 121与所述热释电层 13接触， 所述第二 信号线 121与所述第一信号线 111交叉且无电连接。  a second conductive layer 12 located above the pyroelectric layer 13; the second conductive layer 12 includes a plurality of second signal lines 121; the second signal line 121 is in contact with the pyroelectric layer 13 The second signal line 121 crosses the first signal line 111 and is not electrically connected.
所谓 "无电连接" 是指导电双方通过绝缘物质隔开， 或者， 通过导电性 能比较弱 （弱到可忽略） 的物质隔开； 当然也不排除其他的方式， 总之只要 能使得导电双方的电荷互不影响， 或者影响可忽略即可。  The so-called "no electricity connection" is to guide the two sides to be separated by an insulating material, or by a weakly conductive (weak to negligible) material; of course, other methods are not excluded, in short, as long as the electric charge can be made Do not affect each other, or the impact can be ignored.
另外， 为了清楚阐述上述 "层"的含义， 先引出 "薄膜"这一概念。 "薄 膜" 是指利用沉积等方法制作出的一层薄膜。 若在整个制作过程当中该 "薄 膜" 无需构图工艺， 则该 "薄膜" 还可以称为 "层" ； 若在整个制作过程当 中该 "薄膜" 还需构图工艺， 则在构图工艺前称为 "薄膜" ， 构图工艺后称 为 "层" 。 经过构图工艺后的 "层" 中包含至少一个薄膜 "图案" 。  In addition, in order to clearly explain the meaning of the above "layer", the concept of "film" is first introduced. "Thin film" means a film formed by deposition or the like. If the "film" does not require a patterning process throughout the manufacturing process, the "film" may also be referred to as a "layer"; if the "film" still requires a patterning process throughout the manufacturing process, it is referred to as "before the patterning process". The film " is called a "layer" after the patterning process. The "layer" after the patterning process contains at least one film "pattern".
上述的热释电层 13是指具有热释电效应的层结构。所谓热释电效应是指 电介质的极化随温度改变的现象。 当温度改变时， 极化发生变化， 原先的自 由电荷不能再完全屏蔽束缚电荷， 于是表面出现自由电荷， 它们在附近的空 间形成电场， 对带电 粒有吸引或排斥作用。  The above pyroelectric layer 13 means a layer structure having a pyroelectric effect. The so-called pyroelectric effect refers to the phenomenon that the polarization of the dielectric changes with temperature. When the temperature changes, the polarization changes, the original free charge can no longer completely shield the bound charge, and then there is a free charge on the surface, which forms an electric field in the nearby space, which attracts or repels the charged particles.
如果该电介质与外电路连接， 则可在电路中观测到电流， 升温和降温两 种情况下电流的方向相反。 从而将温度的变化转化为电学特性。  If the dielectric is connected to an external circuit, current can be observed in the circuit, and the current is reversed in both cases of temperature rise and temperature drop. Thereby the change in temperature is converted into electrical properties.
由于在本发明实施例中， 上述的热释电层 13分别与第一信号线 111、 第 二信号线 121相接触， 且第一信号线 111和第二信号线 121交叉， 故而当位 于两信号线 111、 121交叉位置处的热释电层 13部分升温和降温时所引起的 电荷变化，能够通过两信号线 111、 121传导出来。若进一步连接检测电路（和 第一信号线 111、 第二信号线 121均相连） ， 就能够确定温度变化的位置。  In the embodiment of the present invention, the pyroelectric layer 13 is in contact with the first signal line 111 and the second signal line 121, respectively, and the first signal line 111 and the second signal line 121 intersect, so when located in the two signals The change in charge caused by partial heating and cooling of the pyroelectric layer 13 at the intersection of the lines 111, 121 can be conducted through the two signal lines 111, 121. If the detection circuit is further connected (connected to both the first signal line 111 and the second signal line 121), the position of the temperature change can be determined.
上述热释电层 13可以是由至少一种热释电材料构成的层结构，也可以是 掺有至少一种热释电材料的层结构。热释电材料是指具有热释电效应的材料， 示例的， 可以是硫酸三苷肽、 锆钛酸铅镧、 透明陶瓷和聚合物薄膜、 单晶材 料 (LiTa03等)、 压电陶瓷 (PZT等)等中的一种。 The pyroelectric layer 13 may be a layer structure composed of at least one pyroelectric material or a layer structure doped with at least one pyroelectric material. The pyroelectric material refers to a material having a pyroelectric effect, and examples thereof may be a tripeptide of sulphate, a lead lanthanum zirconate titanate, a transparent ceramic and a polymer film, a single crystal material (LiTa0 3 or the like), a piezoelectric ceramic ( One of PZT, etc.).
由于热释电材料一般是绝缘物质或者导电性能比较弱的物质， 故而能够 使得第一信号线和第二信号线无电连接。 进一步的， 为了更好的保证第一信号线 111和第二信号线 121间不出现 电连接， 则优选的， 如图 2所示， 本实施例提供的触摸定位结构 1还包括： 位于所述第一导电层 11和所述热释电层 13之间的绝缘层 14;在所述第二信 号线 121与所述第一信号线 111的交叉位置处，所述绝缘层 14上形成有过孔， 这样就使得热释电层 13和第一信号线 111接触。 也就是说， 热释电层 14通 过绝缘层 14中的过孔与第一信号线 111接触。 Since the pyroelectric material is generally an insulating substance or a substance having a relatively low conductivity, the first signal line and the second signal line can be electrically connected. Further, in order to better ensure that no electrical connection occurs between the first signal line 111 and the second signal line 121, the touch positioning structure 1 provided in this embodiment further includes: An insulating layer 14 between the first conductive layer 11 and the pyroelectric layer 13; at the intersection of the second signal line 121 and the first signal line 111, the insulating layer 14 is formed over The holes are such that the pyroelectric layer 13 is in contact with the first signal line 111. That is, the pyroelectric layer 14 is in contact with the first signal line 111 through a via hole in the insulating layer 14.
另外， 绝缘层 14可以连续地分布与第一导电层 11和第二导电层之间， 且在交叉位置处具有过孔。 然而， 本发明的实施例对此没有限定， 也可以是 包括分布与第一信号线 in和第二信号线 121之间的交叉处的多个绝缘层图 案。  In addition, the insulating layer 14 may be continuously distributed between the first conductive layer 11 and the second conductive layer and have via holes at the intersecting positions. However, the embodiment of the present invention is not limited thereto, and may include a plurality of insulating layer patterns distributed at intersections with the first signal line in and the second signal line 121.
当然， 若是将形成有过孔的绝缘层设置在第二导电层和热释电层之间也 是可以的， 只是由于热释电层 13离触摸体越近， 效果会越好， 故而将前一种 方案作为优选方案。  Of course, it is also possible to provide an insulating layer formed with via holes between the second conductive layer and the pyroelectric layer, but the closer the pyroelectric layer 13 is to the touch body, the better the effect will be. A solution is preferred.
需要说明的是， 第一导电层 11中的第一信号线 111和第二导电层 12中 的第二信号线 121只要是连续的形状即可， 例如直线形、 曲线形等。  It should be noted that the first signal line 111 in the first conductive layer 11 and the second signal line 121 in the second conductive layer 12 may be continuous shapes, for example, a straight line, a curved line, or the like.
热释电层可以是能够至少在交叉位置处接触到第一信号线 111和第二信 号线 121的任意形状， 例如可以是整个薄膜， 也可以是位于交叉位置处的多 个图案。 当热释电层为整个薄膜时，其连续地分布与第一导电层 11和第二导 电层 12之间。  The pyroelectric layer may be of any shape capable of contacting the first signal line 111 and the second signal line 121 at least at the intersection, and may be, for example, the entire film or a plurality of patterns at the intersection. When the pyroelectric layer is the entire film, it is continuously distributed between the first conductive layer 11 and the second conductive layer 12.
作为示例的， 可以参考图 3和图 4所示的俯视图， 对上述各层的形状进 行详细描述。 图 1或图 2为图 3的 A-A截面的示意图， 图 1或图 2同样可以 作为图 4的 A-A截面的示意图， 其中图 3和图 4中均没有标示出绝缘层。  As an example, the shapes of the above layers will be described in detail with reference to the top views shown in Figs. 3 and 4. Fig. 1 or Fig. 2 is a schematic view of the A-A section of Fig. 3, and Fig. 1 or Fig. 2 can also be used as a schematic view of the A-A section of Fig. 4, wherein neither the insulating layer is shown in Figs. 3 and 4.
如图 3所示，第一导电层 11中的第一信号线 111为直线形，第二导电层 12中的第二信号线 121为直线形。 当然， 两信号线 111、 121中的一条为直 线形， 另一条为其他任意连续的形状也是可以的， 例如： 曲线形等。  As shown in FIG. 3, the first signal line 111 in the first conductive layer 11 is linear, and the second signal line 121 in the second conductive layer 12 is linear. Of course, one of the two signal lines 111, 121 is a straight line, and the other is also arbitrarily any other continuous shape, such as a curved shape or the like.
例如， 所述多条第一信号线 111两两平行， 所述多条第二信号线 121两 两平行，且所述第一信号线 111和所述第二信号线 121垂直。需要说明的是， 此处描述的信号线间的平行、 垂直是指的延伸方向上的平行、 垂直。  For example, the plurality of first signal lines 111 are parallel to each other, the plurality of second signal lines 121 are two and two parallel, and the first signal line 111 and the second signal line 121 are perpendicular. It should be noted that the parallel and vertical directions between the signal lines described herein refer to parallel and vertical directions in the extending direction.
进一步的， 若上述的触摸定位结构 1应用于触摸屏， 则优选多条第一信 号线 111和多条第二信号线 121都是均匀分布， 这样使得两信号线 111、 121 的交叉位置的分布也是均匀的。 Further, if the touch positioning structure 1 is applied to the touch screen, it is preferable that the plurality of first signal lines 111 and the plurality of second signal lines 121 are evenly distributed, such that the two signal lines 111, 121 The distribution of the intersection positions is also uniform.
示例的，在本实施例中，所述热释电层 13包括多个互不接触的热释电材 料图案 131; 所述热释电材料图案 131位于所述第二信号线 121与所述第一 信号线 111交叉位置处。  For example, in the embodiment, the pyroelectric layer 13 includes a plurality of pyroelectric material patterns 131 that are not in contact with each other; the pyroelectric material pattern 131 is located on the second signal line 121 and the first A signal line 111 intersects at a position.
如图 4所示，第一导电层 11中的第一信号线 111包括连成一排的多个导 电图案， 图 4中示例的导电图案是菱形， 还可以是圓形、 矩形等任意形状； 第二导电层 12中的第二信号线 121为直线形。 当然， 两信号线 111、 121中 的一者包括连成一排的多个导电图案， 另一者可以为其他任意连续的形状， 例如： 直线形、曲线形、连成一排的多个导电图案等。又或者，两信号线 111、 121都包括连成一排的多个导电图案。  As shown in FIG. 4, the first signal line 111 in the first conductive layer 11 includes a plurality of conductive patterns connected in a row, and the conductive pattern illustrated in FIG. 4 is a diamond shape, and may also be any shape such as a circle or a rectangle; The second signal line 121 in the two conductive layers 12 is linear. Of course, one of the two signal lines 111, 121 includes a plurality of conductive patterns connected in a row, and the other may be any other continuous shape, such as: a straight line, a curved shape, a plurality of conductive patterns connected in a row, and the like. . Alternatively, both signal lines 111, 121 include a plurality of conductive patterns connected in a row.
例如， 所述多条第一信号线 111两两平行， 所述多条第二信号线 121两 两平行，且所述第一信号线 111和所述第二信号线 121垂直。需要说明的是， 此处描述的信号线间的平行、 垂直是指的延伸方向上的平行、 垂直。  For example, the plurality of first signal lines 111 are parallel to each other, the plurality of second signal lines 121 are two and two parallel, and the first signal line 111 and the second signal line 121 are perpendicular. It should be noted that the parallel and vertical directions between the signal lines described herein refer to parallel and vertical directions in the extending direction.
进一步的， 若上述的触摸定位结构 1应用于触摸屏， 则优选多条第一信 号线 111和多条第二信号线 121都是均匀分布， 这样使得两信号线 111、 121 的交叉位置的分布也是均匀的。  Further, if the touch positioning structure 1 is applied to the touch screen, it is preferable that the plurality of first signal lines 111 and the plurality of second signal lines 121 are evenly distributed, so that the distribution of the intersection positions of the two signal lines 111 and 121 is also average.
示例的，在本实施例中，所述热释电层 13包括多个互不接触的热释电材 料图案 131; 所述热释电材料图案 131位于所述第二信号线 121与所述第一 信号线 111交叉位置处。  For example, in the embodiment, the pyroelectric layer 13 includes a plurality of pyroelectric material patterns 131 that are not in contact with each other; the pyroelectric material pattern 131 is located on the second signal line 121 and the first A signal line 111 intersects at a position.
需要说明的是， 对于图 4所示的热释电材料图案 131比第一信号线 111 的菱形导电图案略小， 故而在第一导电层 11和热释电层 13之间需要设置绝 缘层 14。 当然， 如果不设置绝缘层 14的话， 可以将热释电材料图案 131设 置的大一点， 让其覆盖第一信号线 111的导电图案即可。 总之， 要使得第一 信号线 111和第二信号线 121无电连接。  It should be noted that the pyroelectric material pattern 131 shown in FIG. 4 is slightly smaller than the diamond-shaped conductive pattern of the first signal line 111, so an insulating layer 14 needs to be disposed between the first conductive layer 11 and the pyroelectric layer 13. . Of course, if the insulating layer 14 is not provided, the pyroelectric material pattern 131 may be set larger to cover the conductive pattern of the first signal line 111. In short, the first signal line 111 and the second signal line 121 are not electrically connected.
本发明提供的触摸定位结构， 若热释电层在触摸位置处的部分与触摸体 温度不同， 则产生电荷变化， 并通过第一信号线和第二信号线将变化后的电 信号输出； 由输出变化信号的第一信号线和第二信号线的交叉位置， 就可以 确定触摸位置。 从而达到了通过触摸体与热释电层间的温度差异， 感应到触 摸位置。  The touch positioning structure provided by the present invention generates a charge change if a portion of the pyroelectric layer at the touch position is different from the temperature of the touch body, and outputs the changed electrical signal through the first signal line and the second signal line; The touch position can be determined by outputting the intersection position of the first signal line and the second signal line of the change signal. Thereby, the temperature difference between the touch body and the pyroelectric layer is reached, and the touch position is sensed.
上述提供的任一种触摸定位结构 1 , 均可以应用在触摸屏中。 如图 5所 示， 本发明实施例提供了一种触摸屏， 包括相对设置的两个基板 2、 3 , 在其 中一个基板 2的朝外的表面上设置有上述任一种触摸定位结构 1。 Any of the touch positioning structures 1 provided above can be applied to a touch screen. As shown in Figure 5 The embodiment of the invention provides a touch screen comprising two substrates 2, 3 disposed opposite each other, and any one of the above-mentioned touch positioning structures 1 is disposed on an outwardly facing surface of one of the substrates 2.
示例的， 该触摸屏应用在液晶显示器中， 则基板 2、 3可以是阵列基板和 彩膜基板。 一般而言， 基板 2是彩膜基板、 基板 3是阵列基板。 此时， 彩膜 基板就作为该触摸定位结构 1的村底。  For example, the touch screen is applied in a liquid crystal display, and the substrates 2, 3 may be an array substrate and a color film substrate. In general, the substrate 2 is a color filter substrate, and the substrate 3 is an array substrate. At this time, the color film substrate serves as the base of the touch positioning structure 1.
示例的， 该触摸屏应用在 OLED (有机电激光显示， Organic Electroluminesence Display )显示器中， 则基板 2可以是封装基板， 基板 3可 以是阵列基板。 此时， 封装基板作为该触摸定位结构 1的村底。  For example, the touch screen is applied to an OLED (Organic Electroluminescence Display) display, and the substrate 2 may be a package substrate, and the substrate 3 may be an array substrate. At this time, the package substrate serves as the base of the touch positioning structure 1.
本发明的实施例还提供了一种显示装置， 包括上述任一种触摸屏， 所述 显示装置可以为液晶面板、 OLED面板、 显示器、 电视机、 笔记本电脑、 数 码相框、 手机、 平板电脑、 导航仪等任何具有显示功能的产品或者部件。  An embodiment of the present invention further provides a display device, including any of the above touch screens, which may be a liquid crystal panel, an OLED panel, a display, a television, a notebook computer, a digital photo frame, a mobile phone, a tablet computer, a navigator. Any product or part that has a display function.
该显示装置能够广泛应用。 由于人体的温度是恒定的， 而显示装置屏幕 表面的温度基本就是室温， 当人体触摸到屏幕的时候， 触摸位置处会存在温 度差， 位于该触摸位置处的热释电层的部分就会产生电荷的变化， 并由第一 信号线和第二信号线输出的信号， 就可以确定手指触摸的位置。  The display device can be widely applied. Since the temperature of the human body is constant, and the temperature of the surface of the display device is basically room temperature, when the human body touches the screen, there is a temperature difference at the touch position, and a portion of the pyroelectric layer located at the touch position is generated. The change in charge, and the signal output from the first signal line and the second signal line, can determine the position of the finger touch.
本发明实施例提供的触摸屏和显示装置， 由于触摸定位结构通过触摸体 与热释电层间的温度差异，感应到触摸位置；在触摸定位结构应用于触摸屏、 显示装置的情况下， 热释电层的温度即是屏幕的温度， 那么该触摸屏能够通 过触摸体与屏幕间的温度差异， 感应到触摸位置。  The touch screen and the display device provided by the embodiments of the present invention sense the touch position by the temperature difference between the touch body and the pyroelectric layer due to the touch positioning structure; and the pyroelectric power when the touch positioning structure is applied to the touch screen or the display device The temperature of the layer is the temperature of the screen, and the touch screen can sense the touch position by the temperature difference between the touch body and the screen.
如图 6所示，本发明实施例提供了一种触摸定位结构的制造方法， 包括： As shown in FIG. 6, an embodiment of the present invention provides a method for manufacturing a touch positioning structure, including:
S101、 在村底上形成第一导电层 11 , 所述第一导电层 11包括： 多条第 一信号线 111。 S101, forming a first conductive layer 11 on the bottom of the village, the first conductive layer 11 comprising: a plurality of first signal lines 111.
示例的， 若形成图 4所示的触摸定位结构， 则经此步骤形成的结构参见 图 7。  For example, if the touch positioning structure shown in FIG. 4 is formed, the structure formed by this step is shown in FIG.
S102、 在至少形成有所述第一导电层 11的村底上， 形成热释电层 13; 所述热释电层 13与所述第一信号线 11接触。  S102, forming a pyroelectric layer 13 on a substrate on which at least the first conductive layer 11 is formed; the pyroelectric layer 13 is in contact with the first signal line 11.
可选的， 可以在仅形成有第一导电层 11的村底上， 形成热释电层 13。 或者可选的，若在形成第一导电层之后形成热释电层之前还形成其他层， 例如： 绝缘层等。 那么， 此步骤在形成有第一导电层以及其他层的村底上， 形成热释电层 13。 示例的， 若形成图 4所示的触摸定位结构， 则经此步骤形成的结构参见 图 8。 Alternatively, the pyroelectric layer 13 may be formed on the substrate on which only the first conductive layer 11 is formed. Alternatively, if other layers are formed before the formation of the pyroelectric layer after forming the first conductive layer, for example: an insulating layer or the like. Then, this step forms the pyroelectric layer 13 on the substrate on which the first conductive layer and other layers are formed. For example, if the touch positioning structure shown in FIG. 4 is formed, the structure formed by this step is shown in FIG. 8.
5103、 在至少形成有所述热释电层 13的村底上， 形成第二导电层 12。 所述第二导电层 12包括多条第二信号线 121;所述第二信号线 121与所述热 释电层 13接触，所述第二信号线 121与所述第一信号线 111交叉且无电连接。  5103. A second conductive layer 12 is formed on a substrate on which at least the pyroelectric layer 13 is formed. The second conductive layer 12 includes a plurality of second signal lines 121; the second signal lines 121 are in contact with the pyroelectric layer 13 , and the second signal lines 121 intersect the first signal lines 111 and No electrical connection.
可选的， 可以在仅形成有第一导电层 11、 热释电层 13的村底上， 形成 第二导电层 12。  Alternatively, the second conductive layer 12 may be formed on the substrate on which only the first conductive layer 11 and the pyroelectric layer 13 are formed.
或者可选的， 若在形成第一导电层之后形成第二导电层之前还形成其他 层， 例如： 绝缘层等。 那么， 此步骤在形成有第一导电层 11、 热释电层 13 以及其他层的村底上， 形成第二导电层 12。  Alternatively, if another layer is formed before the second conductive layer is formed after the first conductive layer is formed, for example, an insulating layer or the like. Then, this step forms the second conductive layer 12 on the substrate on which the first conductive layer 11, the pyroelectric layer 13, and other layers are formed.
示例的， 形成图 4所示的触摸定位结构。  Illustratively, the touch positioning structure shown in FIG. 4 is formed.
另外， 为了保证第一信号线和第二信号线间良好的绝缘， 则优选的， 如 图 9所示， 在 S101、 S102之间还包括以下步骤：  In addition, in order to ensure good insulation between the first signal line and the second signal line, preferably, as shown in FIG. 9, the following steps are further included between S101 and S102:
5104、 在形成有所述第一导电层 11 的村底上， 形成具有过孔的绝缘层 14;所述过孔位于所述第二信号线 121与所述第一信号线 111的交叉位置处。  5104, forming an insulating layer 14 having a via hole on a substrate on which the first conductive layer 11 is formed; the via hole is located at an intersection of the second signal line 121 and the first signal line 111 .
通过本发明提供的触摸定位结构的制造方法， 可以制成上述的触摸定位 结构，这种结构能够通过触摸体与热释电层间的温度差异，感应到触摸位置。  According to the manufacturing method of the touch positioning structure provided by the present invention, the above-described touch positioning structure can be manufactured, which can sense the touch position by the temperature difference between the touch body and the pyroelectric layer.
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。  The above is only an exemplary embodiment of the present invention, and is not intended to limit the scope of the present invention. The scope of the present invention is defined by the appended claims.

Claims

权利要求书 claims
1、 一种触摸定位结构， 包括： 1. A touch positioning structure, including:
第一导电层， 所述第一导电层包括多条第一信号线； a first conductive layer, the first conductive layer includes a plurality of first signal lines;
位于所述第一导电层上方的热释电层， 所述热释电层与所述第一信号线 接触； A pyroelectric layer located above the first conductive layer, the pyroelectric layer is in contact with the first signal line;
位于所述热释电层上方的第二导电层， 所述第二导电层包括多条第二信 号线， 所述第二信号线与所述热释电层接触， 且所述第二信号线与所述第一 信号线交叉且无电连接。 a second conductive layer located above the pyroelectric layer, the second conductive layer includes a plurality of second signal lines, the second signal lines are in contact with the pyroelectric layer, and the second signal lines It crosses the first signal line and has no electrical connection.
2、 根据权利要求 1所述的触摸定位结构， 还包括： 2. The touch positioning structure according to claim 1, further comprising:
位于所述第一导电层和所述热释电层之间的绝缘层， 在所述第二信号线 与所述第一信号线的交叉位置处， 在所述绝缘层中形成有过孔。 The insulating layer located between the first conductive layer and the pyroelectric layer has a via hole formed in the insulating layer at the intersection of the second signal line and the first signal line.
3、根据权利要求 2所述的触摸定位结构， 其中， 所述热释电层通过所述 绝缘层中的过孔与所述第一信号线接触。 3. The touch positioning structure according to claim 2, wherein the pyroelectric layer contacts the first signal line through a via hole in the insulating layer.
4、 根据权利要求 1-3任一项所述的触摸定位结构， 其中， 所述热释电层 包括多个互不接触的热释电材料图案， 所述热释电材料图案位于所述第二信 号线与所述第一信号线交叉位置处。 4. The touch positioning structure according to any one of claims 1 to 3, wherein the pyroelectric layer includes a plurality of pyroelectric material patterns that are not in contact with each other, and the pyroelectric material patterns are located on the first The second signal line intersects the first signal line.
5、 根据权利要求 1-4任一项所述的触摸定位结构， 其中， 所述第一信号 线和 /或所述第二信号线为直线形。 5. The touch positioning structure according to any one of claims 1 to 4, wherein the first signal line and/or the second signal line are linear.
6、 根据权利要求 1-5任一项所述的触摸定位结构， 其中， 所述第一信号 线和 /或所述第二信号线包括连成一排的多个导电图案。 6. The touch positioning structure according to any one of claims 1 to 5, wherein the first signal line and/or the second signal line includes a plurality of conductive patterns connected in a row.
7、 根据权利要求 1-6任一项所述的触摸定位结构， 其中， 所述多条第一 信号线两两平行， 所述多条第二信号线两两平行， 且所述第一信号线和所述 第二信号线垂直。 7. The touch positioning structure according to any one of claims 1 to 6, wherein the plurality of first signal lines are parallel in pairs, the plurality of second signal lines are parallel in pairs, and the first signal lines are parallel in pairs. The line is perpendicular to the second signal line.
8、 根据权利要求 1-7任一项所述的触摸定位结构， 其中， 所述热释电层 为位于所述第一导电层和所述第二导电层之间的连续膜层结构。 8. The touch positioning structure according to any one of claims 1 to 7, wherein the pyroelectric layer is a continuous film layer structure located between the first conductive layer and the second conductive layer.
9、根据权利要求 1-8任一项所述的触摸定位结构，还包括检测所述多条 第一信号线和所述多条第二信号线上的信号变化的检测电路。 9. The touch positioning structure according to any one of claims 1 to 8, further comprising a detection circuit for detecting signal changes on the plurality of first signal lines and the plurality of second signal lines.
10、 一种触摸屏， 包括相对设置的两个基板， 在其中一个基板的朝外的 表面上设置有权利要求 1-9任一项所述的触摸定位结构。 10. A touch screen, including two substrates arranged oppositely, and the touch positioning structure according to any one of claims 1-9 is provided on the outward-facing surface of one of the substrates.
11、 一种显示装置， 包括权利要求 10所述的触摸屏。 11. A display device, comprising the touch screen according to claim 10.
12、 一种触摸定位结构的制造方法， 包括： 12. A method of manufacturing a touch positioning structure, including:
在村底上形成第一导电层， 所述第一导电层包括多条第一信号线； 在至少形成有所述第一导电层的村底上， 形成热释电层， 所述热释电层 与所述第一信号线接触； A first conductive layer is formed on the bottom, and the first conductive layer includes a plurality of first signal lines; and a pyroelectric layer is formed on the bottom where at least the first conductive layer is formed, and the pyroelectric layer The layer is in contact with the first signal line;
在至少形成有所述热释电层的村底上， 形成第二导电层， 所述第二导电 层包括多条第二信号线， 所述第二信号线与所述热释电层接触， 且所述第二 信号线与所述第一信号线交叉且无电连接。 A second conductive layer is formed on at least the bottom where the pyroelectric layer is formed, the second conductive layer includes a plurality of second signal lines, the second signal lines are in contact with the pyroelectric layer, And the second signal line crosses the first signal line and is not electrically connected.
13、 根据权利要求 12所述的方法， 其中， 在形成热释电层之前还包括： 在形成有所述第一导电层的村底上， 形成具有过孔的绝缘层， 所述过孔 位于所述第二信号线与所述第一信号线的交叉位置处。 13. The method according to claim 12, wherein before forming the pyroelectric layer, further comprising: forming an insulating layer with via holes on the bottom on which the first conductive layer is formed, the via holes being located on At the intersection position of the second signal line and the first signal line.
14、 根据权利要求 12或 13所述的方法， 其中， 所述热释电层形成为多 个互不接触的热释电材料图案， 所述热释电材料图案位于所述第二信号线与 所述第一信号线交叉位置处。 14. The method according to claim 12 or 13, wherein the pyroelectric layer is formed into a plurality of pyroelectric material patterns that are not in contact with each other, and the pyroelectric material patterns are located between the second signal line and At the intersection position of the first signal line.
PCT/CN2013/086784 2013-05-15 2013-11-08 Touch positioning structure and manufacturing method therefor, touchscreen, and display apparatus WO2014183393A1 (en)

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