CN113260961A - Capacitive touch electrode structure, touch sensing system and touch panel - Google Patents
Capacitive touch electrode structure, touch sensing system and touch panel Download PDFInfo
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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
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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
- G06F3/044—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means by capacitive means
Abstract
A capacitive touch electrode structure, a touch sensing system and a touch panel are provided, wherein the capacitive touch electrode structure remarkably reduces the number of conducting wires (102) compared with the prior art by carrying out special structural design on a first electrode layer (10), thereby reducing the area of a functional dead zone (300) in the touch panel and reducing the occurrence of short circuit or open circuit and the like of the conducting wires (102). The touch control induction system is high in induction sensitivity, and can quickly and accurately judge the coordinate position of a touch point. The touch panel has the advantages of sensitive response, stable quality, long service life and the like.
Description
The present application relates to the field of touch technologies, and in particular, to a capacitive touch electrode structure, a touch sensing system and a touch panel.
At present, touch screen technology is basically adopted for screens capable of realizing human-computer interaction, and the touch screen technology is used as a simple, convenient and quick human-computer interaction mode, so that convenience is brought to life and work of people.
The touch screen can be divided into a resistive type, a capacitive type, an optical type and a sonic type according to different sensing technologies, and the current mainstream touch technology is the capacitive type. The capacitive touch screen has the advantages of low power consumption, long service life, smooth operation and the like, is subject to market pursuit, various capacitive touch screen products are developed at present, the cost of the capacitive touch screen is continuously reduced along with the process progress and the mass production, and the capacitive touch screen gradually replaces a resistive touch screen.
The touch function of capacitive touch screen is realized through capacitive touch electrode structure, and a capacitive touch electrode structure is composed of a first electrode layer 100 and a second electrode layer which are arranged oppositely, as shown in fig. 1, the first electrode layer 100 comprises a plurality of electrode patterns 101 arranged in a matrix form and a plurality of wires 102 which are respectively and electrically connected with the plurality of electrode patterns 101, and because each electrode pattern 101 is connected with one wire 102, the more electrode patterns 101 are, the more the number of wires 102 is, and the problem brought is: (1) as shown in fig. 1 and fig. 2, since the space occupied by the wires 102 on the panel is large, the functional dead zone 300 (i.e., the space occupied by the wires 102) is large; (2) as shown in fig. 3A and 3B, the larger the number of the wires 102, the more likely the wires 102 are opened or short-circuited.
Disclosure of Invention
The purpose of this application is including providing a capacitanc touch electrode structure, and the area of function blind area is less, and the probability that condition such as wire short circuit or open circuit takes place is less.
The purpose of the application also includes that a touch sensing system is provided, the sensing sensitivity is high, and the coordinate position of the touch point can be judged quickly and accurately.
The application further aims to provide the touch panel which has the advantages of being sensitive in response, stable in quality, long in service life and the like.
To achieve the above object, the present application first provides a capacitive touch electrode structure, which includes a first electrode layer and a second electrode layer disposed opposite to each other;
defining an X-axis direction and a Y-axis direction which are perpendicular to each other in a plane parallel to the first electrode layer and the second electrode layer;
the first electrode layer comprises a plurality of touch electrode units which are sequentially arranged at intervals along the X-axis direction, the touch electrode units comprise first leads and second leads which extend along the Y-axis direction and are arranged at intervals, and a plurality of first electrode blocks and a plurality of second electrode blocks which are arranged between the first leads and the second leads, the first electrode blocks are respectively and electrically connected with the first leads, the second electrode blocks are respectively and electrically connected with the second leads, and the first electrode blocks and the second electrode blocks are alternately arranged along the Y-axis direction;
the second electrode layer comprises a plurality of induction electrode units which are sequentially arranged at intervals along the Y-axis direction;
in the X-axis direction, each sensing electrode unit covers a plurality of touch electrode units which are sequentially arranged along the X-axis direction; in the Y-axis direction, each sensing electrode unit at least covers one first electrode block or one second electrode block.
In the first electrode layer, in the Y-axis direction, the arrangement positions of first electrode blocks in the plurality of touch electrode units are corresponding, the arrangement positions of second electrode blocks in the plurality of touch electrode units are corresponding, and along the X-axis direction, all first electrode blocks in the first electrode layer are arranged in order in rows, all second electrode blocks in the first electrode layer are arranged in order in rows, and in the Y-axis direction, one row of first electrode blocks and one row of second electrode blocks are arranged alternately.
Optionally, in the Y-axis direction, each sensing electrode unit covers only one of the first electrode block or the second electrode block.
Optionally, in the Y-axis direction, each sensing electrode unit covers one first electrode block and one second electrode block.
Optionally, the second electrode layer further includes a plurality of third wires electrically connected to the plurality of sensing electrode units, respectively.
Optionally, the first electrode block and the second electrode block are both monolithic electrodes.
Optionally, one of the first electrode block and the second electrode block is provided with a hollow pattern, and the other is a whole electrode.
Optionally, the first electrode block and the second electrode block are both rectangular, circular or regular polygonal in shape.
Optionally, the first electrode layer and the second electrode layer are both made of metal or transparent metal conductive oxide.
Optionally, the metal comprises one or more of molybdenum, aluminum, copper, titanium and chromium; the transparent metal conductive oxide includes indium tin oxide.
Optionally, an interval between the first electrode layer and the second electrode layer is empty, or an elastic insulating material is disposed between the first electrode layer and the second electrode layer.
The application further provides a touch sensing system, which comprises the capacitive touch electrode structure and a processor, wherein all the first leads, all the second leads and all the sensing electrode units in the capacitive touch electrode structure are electrically connected with the processor respectively.
The application also provides a touch panel comprising the touch sensing system.
The beneficial effect of this application: the capacitive touch electrode structure has the advantages that through special structural design of the first electrode layer, the number of wires is remarkably reduced compared with the prior art, so that the area of a function blind area in a touch panel is reduced, and the occurrence of conditions such as short circuit or open circuit of the wires is reduced. The touch control induction system is high in induction sensitivity, and can quickly and accurately judge the coordinate position of the touch point. The touch panel has the advantages of sensitive response, stable quality, long service life and the like.
To more clearly illustrate the technical solutions of the embodiments of the present application, the drawings that are required to be used in the embodiments are briefly described below, and it should be understood that the following drawings only illustrate some embodiments of the present application and therefore should not be considered as limiting the scope of the present application.
Fig. 1 is a schematic structural diagram of a first electrode layer in a conventional capacitive touch electrode structure;
FIG. 2 is an enlarged schematic view of a functional dead zone in the first electrode layer of FIG. 1;
FIG. 3A is a schematic diagram of a wire in the first electrode layer of FIG. 1 being disconnected;
FIG. 3B is a schematic diagram of a short circuit condition occurring in the conductive lines in the first electrode layer of FIG. 1;
fig. 4A is a schematic structural diagram of a capacitive touch electrode structure according to a first embodiment of the present disclosure;
fig. 4B is a schematic structural diagram of a capacitive touch electrode structure according to a second embodiment of the present disclosure;
fig. 5 is a schematic diagram illustrating a working principle of the capacitive touch electrode structure according to the present application;
fig. 6A is a schematic structural diagram of a first embodiment of a first electrode layer in a capacitive touch electrode structure according to the present application;
fig. 6B is a schematic structural diagram of a second embodiment of a first electrode layer in a capacitive touch electrode structure according to the present application;
fig. 7A is a schematic structural diagram of a second electrode layer in the capacitive touch electrode structure of fig. 4A;
FIG. 7B is a schematic structural diagram of a second electrode layer in the capacitive touch electrode structure of FIG. 4B;
fig. 8A to 8F are schematic views illustrating a situation that a touch point is located at different positions when the capacitive touch electrode structure of the present application is used.
Description of the main element symbols:
10/100, a first electrode layer; 101. an electrode pattern; 102. a wire; 300. a functional blind area; 11. a touch electrode unit; 31. a first conductive line; 32. a second conductive line; 41. a first electrode block; 42. a second electrode block; 20. a second electrode layer; 21. an induction electrode unit; 22. a third conductive line; 50. a touch point; 60. and (6) hollowing out the pattern.
The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only a part of the embodiments of the present application, and not all of the embodiments.
The components of the embodiments of the present application, generally described and illustrated in the figures herein, can be arranged and designed in a wide variety of different configurations. Thus, the following detailed description of the embodiments of the present application, presented in the accompanying drawings, is not intended to limit the scope of the claimed application, but is merely representative of selected embodiments of the application. All other embodiments, which can be derived by a person skilled in the art from the embodiments of the present application without making any creative effort, shall fall within the protection scope of the present application.
Hereinafter, the terms "including", "having", and their derivatives, which may be used in various embodiments of the present application, are intended to indicate only specific features, numbers, steps, operations, elements, components, or combinations of the foregoing, and should not be construed as first excluding the existence of, or adding to, one or more other features, numbers, steps, operations, elements, components, or combinations of the foregoing.
In various embodiments of the present application, the expression "a or/and B" includes any or all combinations of the words listed simultaneously, may include a, may include B, or may include both a and B.
In the description of the present application, it is to be understood that the terms "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "lateral," "top," "bottom," "inner," "outer," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the present application and for simplicity in description, and are not intended to indicate or imply that the referenced devices or elements must have a particular orientation, be constructed in a particular orientation, and be operated in a particular manner, and thus should not be construed as limiting the present application. Furthermore, the terms "first," "second," "third," and the like are used solely to distinguish one from another and are not to be construed as indicating or implying relative importance.
In the description herein, reference to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the application. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
In the description of the present application, unless otherwise specified and limited, it is to be noted that the terms "mounted," "connected," and "connected" are to be interpreted broadly, and may be, for example, mechanically connected, or connected by internal communication between two elements, directly connected, or indirectly connected through an intermediate medium, and specific meanings of the terms may be understood by those skilled in the art according to specific situations. Unless otherwise defined, all terms (including technical and scientific terms) used herein have the same meaning as commonly understood by one of ordinary skill in the art to which the various embodiments of the present application belong. The terms (such as those defined in commonly used dictionaries) should be interpreted as having a meaning that is consistent with their contextual meaning in the relevant art and will not be interpreted in an idealized or overly formal sense unless expressly so defined herein in various embodiments.
Referring to fig. 4A to 7B, the present application provides a capacitive touch electrode structure, which includes a first electrode layer 10 and a second electrode layer 20 disposed opposite to each other.
An X-axis direction and a Y-axis direction perpendicular to each other are defined in a plane parallel to the first electrode layer 10 and the second electrode layer 20.
The first electrode layer 10 includes a plurality of touch electrode units 11 sequentially arranged at intervals along an X-axis direction, the touch electrode units 11 include first wires 31 and second wires 32 extending along a Y-axis direction and arranged at intervals, and a plurality of first electrode blocks 41 and a plurality of second electrode blocks 42 arranged between the first wires 31 and the second wires 32, the plurality of first electrode blocks 41 are respectively electrically connected with the first wires 31, the plurality of second electrode blocks 42 are respectively electrically connected with the second wires 32, and the first electrode blocks 41 and the second electrode blocks 42 are alternately arranged along the Y-axis direction;
the second electrode layer 20 includes a plurality of sensing electrode units 21 sequentially arranged at intervals along the Y-axis direction.
In the X-axis direction, each sensing electrode unit 21 covers a plurality of touch electrode units 11 arranged in sequence along the X-axis direction; in the Y-axis direction, each sensing electrode unit 21 covers at least one of the first electrode block 41 or the second electrode block 42.
Optionally, as shown in fig. 6A and 6B, in the first electrode layer 10, in the Y-axis direction, the arrangement positions of the first electrode blocks 41 in the plurality of touch electrode units 11 correspond to each other, the arrangement positions of the second electrode blocks 42 in the plurality of touch electrode units 11 correspond to each other, along the X-axis direction, all the first electrode blocks 41 in the first electrode layer 10 are arranged in a plurality of rows, all the second electrode blocks 42 in the first electrode layer 10 are arranged in a plurality of rows, and in the Y-axis direction, one row of the first electrode blocks 41 and one row of the second electrode blocks 42 are alternately arranged.
Alternatively, as shown in fig. 4A, each sensing electrode unit 21 covers only one first electrode block 41 or second electrode block 42 in the Y-axis direction.
Alternatively, as shown in fig. 4B, each sensing electrode unit 21 covers one first electrode block 41 and one second electrode block 42 in the Y-axis direction.
Specifically, as shown in fig. 7A and 7B, the second electrode layer 20 further includes a plurality of third wires 22 electrically connected to the plurality of sensing electrode units 21, respectively, and the third wires 22 are used for realizing connection between the sensing electrode units 21 and the processor.
It can be understood that, in the capacitive touch electrode structure of the present application, the first electrode layer 10 is close to a touch object (e.g. a finger). As shown in fig. 5, when a touch object (e.g. a finger) acts on the first electrode layer 10, the first electrode layer 10 is usually bent downward, resulting in a distance between the first electrode layer 10 and the second electrode layer 20The distance d is reduced, and the capacitance is calculated as C ═ epsilonr*ε 0S/d, so that the capacitance C increases therewith when the distance d between the first electrode layer 10 and the second electrode layer 20 decreases.
As shown in fig. 6A, in one embodiment of the present application, the first electrode block 41 and the second electrode block 42 are both monolithic electrodes.
As shown in fig. 6B, in another embodiment of the present application, one of the first electrode block 41 and the second electrode block 42 has a hollow pattern 60, and the other is a whole electrode.
Optionally, the first electrode block 41 and the second electrode block 42 are both rectangular, circular or regular polygonal.
Specifically, in the embodiment shown in fig. 6B, the first electrode block 41 has a hollow pattern 60, the second electrode block 42 is a monolithic electrode, the first electrode block 41 and the second electrode block 42 are both rectangular, and the hollow pattern 60 of the first electrode block 41 is rectangular.
The working principle of the capacitive touch electrode structure of the present application is explained as follows:
as can be understood by those skilled in the art, when a touch-control body (e.g., a finger) touches an electrode block (the first electrode block 41 or the second electrode block 42), a touched area on the electrode block may be depressed downward, resulting in a change in capacitance of the touched area, and thus a change in capacitance of the entire electrode block;
when the touch object touches a plurality of electrode blocks simultaneously, because the pressing force degrees borne by the touched areas on the electrode blocks are basically the same, the variation of the distance (d) between the touched areas on the electrode blocks and the corresponding electrode layer (i.e. the second electrode layer 20) is basically the same, in this case, according to the capacitance calculation formula C ═ epsilon ∈ epsilonr*ε 0S/d shows that when the area of the touched area on one electrode block is larger, the capacitance variation of the touched area of the electrode block is larger, so that the capacitance variation of the whole electrode block is also largest, and therefore, the processor can perform the capacitance variation on a plurality of electrode blocksThe coordinate position of the electrode block having the largest capacitance change amount (i.e., the largest area of the touched region) is determined as the coordinate position of the touch point 50 by the line comparison.
Determination of X-axis coordinate position of touch point 50:
as shown in fig. 8A, when a touch object (e.g., a finger) acts on the first electrode layer 10, if the electrode block (the first electrode block 41 or the second electrode block 42) on only one wire (the first wire 31 or the second wire 32) senses a touch signal in the X-axis direction and transmits the touch signal to the processor, since the coordinate position of the electrode block connected to each wire in the X-axis direction is determined, the processor may determine the X-axis coordinate position of the touch point 50 according to the X-axis coordinate position of the electrode block.
As shown in fig. 8B, when a touch object (e.g., a finger) acts on the first electrode layer 10, if a plurality of (e.g., 2 or 3) electrode blocks on a plurality of (e.g., 2 or 3) wires sense a touch signal in the X-axis direction and the plurality of electrode blocks respectively transmit the touch signal to the processor via the wires, the processor compares capacitance signals (i.e., capacitance variation) of the plurality of electrode blocks, determines a position of an electrode block with a largest capacitance signal as a position of the touch point 50, and determines an X-axis coordinate position of the touch point 50 according to the X-axis coordinate position of the electrode block because the X-axis coordinate position of the electrode block is determined.
(II) determination of Y-axis coordinate position of touch point 50:
(1) the description will be made for a case where each of the sensing electrode units 21 covers only one electrode block in the Y-axis direction:
as shown in fig. 8A, when only one electrode block (the first electrode block 41 or the second electrode block 42) in the Y-axis direction senses the touch signal, and the sensing electrode unit 21 corresponding to the electrode block transmits the capacitance signal (i.e., the capacitance variation) to the processor, since the Y-axis coordinate position of the sensing electrode unit 21 is determined, the processor can determine the Y-axis coordinate position of the touch signal according to the Y-axis coordinate position of the sensing electrode unit 21.
As shown in fig. 8C, when a plurality of electrode blocks sense a touch signal in the Y-axis direction, after the plurality of sensing electrode units 21 respectively corresponding to the plurality of electrode blocks transmit a capacitance signal (i.e., a capacitance variation) to the processor, the processor compares the capacitance signals of the plurality of sensing electrode units 21, and determines the position of the sensing electrode unit 21 with the largest capacitance signal as the position of the touch signal, and since the Y-axis coordinate position of the sensing electrode unit 21 is determined, the Y-axis coordinate position of the touch signal can be determined according to the Y-axis coordinate position of the sensing electrode unit 21.
(2) The description will be made for the case where each of the sensing electrode units 21 covers one of the first electrode blocks 41 and one of the second electrode blocks 42 in the Y-axis direction:
as shown in fig. 8D, when the touch point 50 is located on one sensing electrode unit 21 and corresponds to one electrode block (the first electrode block 41 or the second electrode block 42), firstly, the processor determines an approximate coordinate position of the touch signal in the Y-axis direction according to the Y-axis direction coordinate of the sensing electrode unit 21 sensing the touch signal, and since the up-down positions of the first electrode block 41 and the second electrode block 42 in each sensing electrode unit 21 are determined, the processor can determine the accurate position of the touch point 50 in the Y-axis direction according to whether the first electrode block 41 or the second electrode block 42 senses the touch signal.
As shown in fig. 8E, when the touch point 50 is located on one sensing electrode unit 21 and corresponds to two electrode blocks (the first electrode block 41 and the second electrode block 42) at the same time, first, the processor determines the approximate coordinate position of the touch signal in the Y-axis direction according to the Y-axis direction coordinate of the sensing electrode unit 21 sensing the touch signal, secondly, the processor determines which electrode block (the first electrode block 41 or the second electrode block 42) is used as the positioning mark of the touch point 50 in the Y-axis direction according to which electrode block of the two electrode blocks (the first electrode block 41 and the second electrode block 42) that senses the touch signal has a larger capacitance signal (i.e. a larger capacitance variation), since the upper and lower positions of the first electrode block 41 and the second electrode block 42 in each sensing electrode unit 21 are determined, the exact position of the touch point 50 in the Y-axis direction can therefore be determined from the Y-axis coordinate position of the electrode block as a localization marker.
As shown in fig. 8F, when the touch point 50 is located on the plurality of (two or more) sensing electrode units 21, the processor first compares the magnitudes of the capacitance signals (i.e., the capacitance variation) of the plurality of sensing electrode units 21, selects one sensing electrode unit 21 with the largest capacitance signal to determine the approximate coordinate position of the touch signal in the Y-axis direction, and then determines the accurate position of the touch point 50 in the Y-axis direction according to which electrode block (the first electrode block 41 or the second electrode block 42) corresponding to the sensing electrode unit 21 has the larger capacitance signal.
Optionally, the materials of the first electrode layer 10 and the second electrode layer 20 are both metal or transparent metal conductive oxide.
Specifically, the metal may include one or more of molybdenum (Mo), aluminum (Al), copper (Cu), titanium (Ti), and chromium (Cr).
Optionally, the transparent metal conductive oxide is Indium Tin Oxide (ITO).
Optionally, an interval between the first electrode layer 10 and the second electrode layer 20 is empty, or an elastic insulating material is disposed between the first electrode layer 10 and the second electrode layer 20.
Optionally, the elastic insulating material is rubber.
The capacitive touch electrode structure has the advantages that through special structural design of the first electrode layer 10, the number of wires is remarkably reduced compared with the prior art, so that the area of a function blind area in a touch panel is reduced, and the occurrence of conditions such as short circuit or open circuit of the wires is reduced.
The present application further provides a touch sensing system, which includes the above capacitive touch electrode structure and a processor, wherein all the first wires 31, all the second wires 32 and all the sensing electrode units 21 in the capacitive touch electrode structure are electrically connected to the processor respectively.
The touch control sensing system is high in sensing sensitivity, and can quickly and accurately judge the coordinate position of the touch point 50.
It will be understood that the processor is conventional in the art and that the present application is not limited to the specific structure thereof.
It can be understood that the above-described working principle of the capacitive touch electrode structure of the present application is the working principle of the touch sensing system of the present application.
The application also provides a touch panel, which comprises the touch sensing system, can realize the touch function of the panel through the touch sensing system, and has the advantages of sensitive response, stable quality, long service life and the like.
Since the numerical ranges of the parameters mentioned in the present application are not necessarily all represented in the above embodiments, the person skilled in the art can fully envision that the present application can be implemented by any numerical values falling within the above numerical ranges, and of course any combination of specific values within the several numerical ranges is also included. Here, for the sake of brevity, the embodiment giving specific values in a certain numerical range or ranges is omitted, and this should not be construed as an insufficient disclosure of the technical solution of the present application.
The above description is only exemplary of the preferred embodiment of the present application and should not be taken as limiting the present application, and any modifications, equivalents, improvements, etc. made within the spirit and principle of the present application should be included in the protection scope of the present application.
Claims (13)
- A capacitive touch electrode structure is characterized by comprising a first electrode layer and a second electrode layer which are oppositely arranged;defining an X-axis direction and a Y-axis direction which are perpendicular to each other in a plane parallel to the first electrode layer and the second electrode layer;the first electrode layer comprises a plurality of touch electrode units which are sequentially arranged at intervals along the X-axis direction, the touch electrode units comprise first leads and second leads which extend along the Y-axis direction and are arranged at intervals, and a plurality of first electrode blocks and a plurality of second electrode blocks which are arranged between the first leads and the second leads, the first electrode blocks are respectively and electrically connected with the first leads, the second electrode blocks are respectively and electrically connected with the second leads, and the first electrode blocks and the second electrode blocks are alternately arranged along the Y-axis direction;the second electrode layer comprises a plurality of induction electrode units which are sequentially arranged at intervals along the Y-axis direction;in the X-axis direction, each sensing electrode unit covers a plurality of touch electrode units which are sequentially arranged along the X-axis direction; in the Y-axis direction, each sensing electrode unit at least covers one first electrode block or one second electrode block.
- The capacitive touch electrode structure according to claim 1, wherein in the first electrode layer, in the Y-axis direction, the first electrode blocks in the plurality of touch electrode units are arranged at corresponding positions, and the second electrode blocks in the plurality of touch electrode units are arranged at corresponding positions, and along the X-axis direction, all the first electrode blocks in the first electrode layer are arranged in a plurality of rows, all the second electrode blocks in the first electrode layer are arranged in a plurality of rows, and in the Y-axis direction, one row of first electrode blocks and one row of second electrode blocks are arranged alternately.
- The capacitive touch electrode structure according to claim 2, wherein each sensing electrode unit covers only one of the first electrode block or the second electrode block in the Y-axis direction.
- The capacitive touch electrode structure according to claim 2, wherein each sensing electrode unit covers one of the first electrode blocks and one of the second electrode blocks in the Y-axis direction.
- The capacitive touch electrode structure of claim 1, wherein the second electrode layer further comprises a plurality of third wires electrically connected to the plurality of sensing electrode units, respectively.
- The capacitive touch electrode structure of claim 1, wherein the first electrode block and the second electrode block are monolithic electrodes.
- The capacitive touch electrode structure of claim 1, wherein one of the first electrode block and the second electrode block has a hollow pattern, and the other electrode block is a monolithic electrode.
- The capacitive touch electrode structure of claim 1, wherein the first electrode block and the second electrode block are rectangular, circular or regular polygonal.
- The capacitive touch electrode structure according to claim 1, wherein the first electrode layer and the second electrode layer are made of metal or transparent metal conductive oxide.
- The capacitive touch electrode structure of claim 9, wherein the metal comprises one or more of molybdenum, aluminum, copper, titanium, chromium; the transparent metal conductive oxide includes indium tin oxide.
- The capacitive touch electrode structure of claim 1, wherein a gap between the first electrode layer and the second electrode layer is empty, or an elastic insulating material is disposed between the first electrode layer and the second electrode layer.
- A touch sensing system, comprising the capacitive touch electrode structure according to any one of claims 1 to 11 and a processor, wherein all the first wires, all the second wires and all the sensing electrode units in the capacitive touch electrode structure are electrically connected to the processor respectively.
- A touch panel comprising the touch sensing system of claim 12.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| PCT/CN2019/074126 WO2020155006A1 (en) | 2019-01-31 | 2019-01-31 | Capacitive touch electrode structure, touch sensing system and touch panel |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20110210935A1 (en) * | 2010-03-01 | 2011-09-01 | Cando Corporation | Sensory structure of capacitive touch panel and capacitive touch panel having the same |
| US20180210577A1 (en) * | 2017-01-26 | 2018-07-26 | Mstar Semiconductor, Inc. | Double-layer mutual capacitive touch panel |
| CN108491109A (en) * | 2018-03-28 | 2018-09-04 | 厦门天马微电子有限公司 | The driving method of display panel, display device and its display panel |
| CN108509097A (en) * | 2018-03-01 | 2018-09-07 | 上海天马微电子有限公司 | Touch-control display panel and touch control display apparatus |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2014186537A (en) * | 2013-03-22 | 2014-10-02 | Japan Display Inc | Display device, and electronic apparatus |
| CN106816460B (en) * | 2017-03-01 | 2020-04-24 | 上海天马微电子有限公司 | Flexible touch display panel and flexible touch display device |
| CN107179622A (en) * | 2017-07-28 | 2017-09-19 | 上海中航光电子有限公司 | Touch-control display panel and touch control display apparatus |
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- 2019-01-31 WO PCT/CN2019/074126 patent/WO2020155006A1/en active Application Filing
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20110210935A1 (en) * | 2010-03-01 | 2011-09-01 | Cando Corporation | Sensory structure of capacitive touch panel and capacitive touch panel having the same |
| US20180210577A1 (en) * | 2017-01-26 | 2018-07-26 | Mstar Semiconductor, Inc. | Double-layer mutual capacitive touch panel |
| CN108509097A (en) * | 2018-03-01 | 2018-09-07 | 上海天马微电子有限公司 | Touch-control display panel and touch control display apparatus |
| CN108491109A (en) * | 2018-03-28 | 2018-09-04 | 厦门天马微电子有限公司 | The driving method of display panel, display device and its display panel |
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| WO2020155006A1 (en) | 2020-08-06 |
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Application publication date: 20210813 |