CN103914191A - Touch sensing element and touch screen - Google Patents
Touch sensing element and touch screen Download PDFInfo
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- CN103914191A CN103914191A CN201310002301.3A CN201310002301A CN103914191A CN 103914191 A CN103914191 A CN 103914191A CN 201310002301 A CN201310002301 A CN 201310002301A CN 103914191 A CN103914191 A CN 103914191A
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Abstract
A touch sensing element comprises an insulating layer, a sensing layer and a driving layer, wherein the insulating layer is provided with a first surface and a second surface opposite to the fist surface. The sensing layer is located on the first surface and formed by arranging one group of spaced and non-overlapped sensing path lines along the first dimension of a two-dimensional coordinate system. The driving layer is located on the second surface and consists of a group of driving path lines, a group of path lines and a plurality of conductive lead wires, wherein the driving path lines and shielding path lines are alternatively arranged along the second dimension of the two-dimensional coordinate system, the driving path lines are overlapped with the sensing path lines, the driving path lines and the shielding path lines are spaced and are not overlapped, and each conductive lead wire is electrically connected with one corresponding driving path line. The touch sensing element can reduce the influence on the whole touch screen of noise capacitor of an LED. The invention further provides the touch screen.
Description
Technical field
The present invention relates to a kind of touch sensible element and use the touch-screen of this touch sensible element.
Background technology
Touch-screen is widely used in various electronic installations as the simple man-machine interaction mode of one, as mobile phone, and IPAD etc.
Touch-screen generally includes panel and is attached at the touch sensible element of this panel one side, this touch sensible element by insulation course and relative two surperficial inductive layers of being positioned at this insulation course with drive layer.This inductive layer comprises some induction traces that do not intersect and extend along first direction, and this driving layer comprises some driving traces that do not intersect and extend along second direction.This first direction and second direction are not parallel.Described induction trace is spaced apart by this insulation course with driving trace, is equivalent to two battery lead plates of capacitor.Each induction trace forms sense node with corresponding driving trace in intersection region.Work as touch objects, during as this panels of contact such as finger, screen touch pens, cause the capacitance variations at this sense node place, thereby realize the execution of determining and touch instruction of touch location.
The touch-screen of this structure is easily subject to the impact of external electrical field in use, cause the sensitivity of touch-screen, for example, this touch-screen is in the time fitting in liquid crystal display screen surfaces, and the electric field of LCDs self can drive trace and the inductance capacitance of responding to trace by strong effect.In view of this, in this touch-screen, drive the driving trace of layer to be conventionally designed to have larger width and between external electrical field and induction trace, with the electric field that shields liquid crystal indicator (LCD) on responding to the impact of trace.But in the time driving trace to have larger width, it is arranged in external electrical field, equally can be on driving trace and the inductance capacitance of induction trace to cause great impact.
Summary of the invention
Based on this, be necessary the touch-screen that provides a kind of electric field to external world to there is the touch sensible element of better shield effectiveness and use this touch sensible element.
A kind of touch sensible element, comprising:
Insulation course, has first surface and the second surface relative with described first surface;
Inductive layer, is positioned at described first surface, and described inductive layer is arranged and formed along the first dimension of two-dimensional coordinate system by one group of space and nonoverlapping induction trace; And
Drive layer, be positioned at described second surface, described driving layer drives trace, one group of shield traces and some conductive lead wires by one group, described driving trace and shield traces form along the second dimension alternative arrangement of two-dimensional coordinate system, described driving trace and described induction trace are mutually overlapping, described driving trace and described shield traces space and not overlapping, described in each, conductive lead wire is electrically connected with driving trace described in one.
Therein in an embodiment, all strips linearly of described driving trace and shield traces, described driving trace equates with shield traces width.
Therein in an embodiment, described inductive layer also comprises that one group of inductive layer assists trace, the auxiliary trace of described inductive layer and described induction trace are along the first dimension alternative arrangement of described two-dimensional coordinate system, the auxiliary trace of described inductive layer and described induction trace space and not overlapping, each article of auxiliary trace of inductive layer formed along the two-dimensional arrangements of described two-dimensional coordinate system by multiple conducting blocks.
In an embodiment, the overlapping region of described induction trace and described driving trace and shield traces offers through hole, in described through hole, is provided with conducting block therein.
In an embodiment, in each through hole, be provided with two conducting blocks therein.
In an embodiment, described conducting block is rectangle therein, circle, parallelogram, trapezoidal or triangle.
Therein in an embodiment, described driving layer also comprises the auxiliary trace of the driving layer being arranged between described driving trace and described shield traces, the described auxiliary trace of layer that drive arranged and formed along the first dimension of described two-dimensional coordinate system by multiple conducting blocks, the described driving auxiliary trace of layer and described driving trace mutually insulated.
In an embodiment, the auxiliary trace of described driving layer falls into described induction trace in the orthogonal projection of described inductive layer therein.
A kind of touch-screen, comprises above-mentioned touch sensible element.
In an embodiment, described touch-screen also comprises the panel that is covered in described inductive layer surface therein.
Above-mentioned touch sensible element and touch-screen, because the driving trace and the shield traces that drive layer are arranged alternately, drive trace and shield traces to shield the noise electric capacity of LCD for induction trace simultaneously, but due to shield traces and be free of attachment in circuit, the impact of the noise electric capacity that therefore can reduce LCD on whole touch-screen, electric field has better shield effectiveness to external world.
Brief description of the drawings
Fig. 1 is the structural representation of the touch-screen of an embodiment;
Fig. 2 is the structural representation of the touch sensible element of touch-screen in Fig. 1;
Fig. 3 is the part structure for amplifying schematic diagram of the inductive layer of the touch sensible element in Fig. 2;
Fig. 4 is the structural representation of the driving layer of the touch sensible element in Fig. 2;
Fig. 5 is the structural representation of the touch-screen of another embodiment.
Embodiment
For the ease of understanding the present invention, below with reference to relevant drawings, the present invention is described more fully.In accompanying drawing, provide first-selected embodiment of the present invention.But the present invention can realize in many different forms, be not limited to embodiment described herein.On the contrary, providing the object of these embodiment is to make to disclosure of the present invention more thoroughly comprehensively.
It should be noted that, when element is called as " being fixedly arranged on " another element, it can be directly on another element or also can have an element placed in the middle.When an element is considered to " connection " another element, it can be directly connected to another element or may have centering elements simultaneously.Term as used herein " vertical ", " level ", " left side ", " right side " and similar statement are just for illustrative purposes.
Unless otherwise defined, all technology that use are herein identical with the implication that belongs to the common understanding of those skilled in the art of the present invention with scientific terminology.The term using in instructions of the present invention herein, just in order to describe the object of specific embodiment, is not intended to be restriction the present invention.Term as used herein " and/or " comprise one or more relevant Listed Items arbitrarily with all combinations.
Refer to Fig. 1, the touch-screen 100 of an embodiment comprises touch sensible element 10 and panel 170.Touch sensible element 10 comprises insulation course 110, inductive layer 130 and drives layer 150.Certainly, touch-screen 100 also comprises other elements such as circuit board, does not repeat one by one at this.
Insulation course 110 is roughly tabular.Insulation course 110 has first surface 112 and the second surface 114 relative with first surface 112.The material of insulation course 110 is glass or plastics, as polyethylene terephthalate (PET), or is optical clear insulating gel, and in a word, this insulation course 110 is transparent insulation material.
The one-piece construction that this touch sensible element 10 is described below in conjunction with Fig. 2, Fig. 2 has used foreshortened figure, intuitively to show position and the size relationship of inductive layer in embodiment 130 and this driving layer 150.In this touch sensible element 10, the relative both sides of this inductive layer 130 and this driving layer 150 this insulation course 110 of separation.Please refer to Fig. 1 and Fig. 3, inductive layer 130 is positioned at first surface 112.Inductive layer 130 is arranged and is formed along the first dimension X of two-dimensional coordinate system by some induction traces 132, and multiple induction traces 132 spaces and not overlapping.Induction trace 132 is made up of conductive material, as transparent ITO (tin indium oxide), metal grid lines, carbon nano-tube etc.
Inductive layer 130 also comprises that one group of inductive layer assists trace 134.The auxiliary trace 134 of inductive layer and the first dimension X alternative arrangement of induction trace 132 along two-dimensional coordinate system, the auxiliary trace 134 of inductive layer with adjacent induction trace 132 according to 134,132,134,132,134,132 ... order along the first dimension X alternative arrangement of two-dimensional coordinate system.The auxiliary trace 134 of inductive layer and induction trace 132 spaces and not overlapping.The auxiliary trace 134 of inductive layer is arranged and is formed along the second dimension Y of two-dimensional coordinate system by multiple conducting blocks 1342.In present embodiment, conducting block 1342 is rectangle.Certainly in other embodiments, conducting block 1342 can also be circle, parallelogram, trapezoidal or triangle.
Please refer to Fig. 2 and Fig. 4, drive layer 150 alternately to be arranged along the second dimension Y of two-dimensional coordinate system by some driving traces 152 and some shield traces 154, drive trace 152 and shield traces 154 according to 152,154,152,154,152,154,152 ... order along two-dimensional coordinate system second dimension Y arrange successively.Drive trace 152 and shield traces 152 spaces and not overlapping.Drive between trace 152 and adjacent shield traces 154 and form a clearance for insulation 156.In present embodiment, drive trace 152 and shield traces 154 to be all roughly strip and extend along the first dimension direction X.Preferably, drive trace 152 to equate with shield traces 154 width.Drive trace 152 and shield traces 154 to make by conductive material, as transparent ITO (tin indium oxide), metal grid lines, carbon nano-tube etc.Drive trace 152 to be electrically connected with circuit board (not shown) by conductive lead wire 157.154 of shield traces insulate with driving trace 152 and conductive lead wire 157.
Further, drive layer 150 also to comprise and be placed in the auxiliary trace 158 of the driving layer driving between trace 152 and shield traces 154.Drive the auxiliary trace 158 of layer to be located in clearance for insulation 156.Drive the auxiliary trace 158 of layer to arrange and form along the first dimension X of two-dimensional coordinate system by multiple conducting blocks 1582.Preferably, drive the auxiliary trace 158 of layer to fall into induction trace 132 in the orthogonal projection of inductive layer 130.In present embodiment, conducting block 1582 is roughly rectangle and all identical with shape and the size of conducting block 1342.Certainly in other embodiments, the shape of conducting block 1582 and be less than greatly conducting block 1342 can be different, conducting block 1582 can also be circle, parallelogram, trapezoidal or triangle.
Please refer to Fig. 2 and Fig. 3, further, induction trace 132 region overlapping with driving trace 152 and shield traces 154 offers through hole 1322, is provided with conducting block 1324 in through hole 1322.Preferably, each overlapping region offers two through holes 1322, is provided with two conducting blocks 1324 in each through hole 1322.Conducting block 1324 falls into and drives trace 152 or shield traces 154 in the projection that drives layer 150.In present embodiment, conducting block 1324 is roughly rectangle and all identical with shape and the size of conducting block 1342.Certainly in other embodiments, the shape of conducting block 1324 and be less than greatly conducting block 1342 can be different, conducting block 1324 can also be circle, parallelogram, trapezoidal or triangle.
In the present embodiment, the width L1 of induction trace 132 is not less than the width L2 that drives trace 152.In other embodiments, the width L1 of induction trace 132 also can be less than or equal to the width L2 that drives trace 152.
Conducting block 1324, conducting block 1342 and conducting block 1582 are made by conductive material, as transparent ITO (tin indium oxide), metal grid lines, carbon nano-tube etc.
Panel 170 is positioned at inductive layer 130 surfaces.The material of panel 170 is glass or plastics.
Because the driving trace 152 that drives layer 150 is arranged alternately with shield traces 154, drive trace 152 and shield traces 154 to shield the noise electric field of LCD for induction trace 132 simultaneously, but due to shield traces 154 and be free of attachment in circuit, and, drive trace 152 to there is relatively little width, therefore can significantly reduce external electrical field, as the impact of the noise electric field of LCD on whole touch-screen 100, make this touch-screen 100 to external world electric field there is better shield effectiveness.By offer through hole 1322 on induction trace 132, conducting block 1324 is set in through hole 1322, the auxiliary trace 134 of inductive layer is set between two adjacent induction traces 132 and arranges and drive the auxiliary trace 158 of layer at clearance for insulation 156, can effectively prevent from producing on touch-screen Moire fringe, and can make the overall light surface uniform of touch-screen 100, avoid the hot spot that occurs that obvious light and shade replaces.
In above example, inductive layer 130 lays respectively at the relative both sides of insulation course 110 with driving layer 150, this insulation course 110 is made up of insulating material, its effect is mainly an inductive layer 130 and drives layer 150 spaced apart, this insulation course 110 can be used as inductive layer 130 and the carrier that drives layer 150, it is the DITO structure in industry, but this insulation course 110 is not necessarily restricted to inductive layer 130 and the carrier that drives layer 150, inductive layer 130 with drive the layer 150 can be by the live apart relative both sides of this insulation course 110 of other carriers, or at least one of them is positioned at a side of this insulation course 110 by other carriers, taking the embodiment in Fig. 1 as example, this inductive layer 130 also can be formed at the lower surface of this panel 170, and separate with driving layer 150 by insulation course 110, also can be to form on this insulation course 110.In addition, this insulation course 110 is not limited to one deck, can two-layer or multilayer.Below describe with specific embodiment equally.
Fig. 5 shows the touch-screen 300 of another embodiment of the present invention, the structure of the touch-screen 100 in itself and the first embodiment is roughly the same, its difference is: the insulation course 31 of the touch sensible element 30 of touch-screen 300 comprises an insulating carrier layer 310 and an optical clear glue-line 320, and this driving layer 350 is formed on a basalis 380.This inductive layer 330 is formed at the first surface 312 of this insulating carrier layer 310.This optics glue-line 320 and this basalis 380 lay respectively at the relative both sides of this driving layer 350; this driving layer 350 is attached at by this optics glue-line 320 on the second surface 314 of this insulating carrier layer 310; this basalis 380 is not only as the carrier of this driving layer 350, and as the protective seam of this driving layer 350.
The above embodiment has only expressed several embodiment of the present invention, and it describes comparatively concrete and detailed, but can not therefore be interpreted as the restriction to the scope of the claims of the present invention.It should be pointed out that for the person of ordinary skill of the art, without departing from the inventive concept of the premise, can also make some distortion and improvement, these all belong to protection scope of the present invention.Therefore, the protection domain of patent of the present invention should be as the criterion with claims.
Claims (10)
1. a touch sensible element, is characterized in that, comprising:
Insulation course, has first surface and the second surface relative with described first surface;
Inductive layer, is positioned at described first surface, and described inductive layer is arranged and formed along the first dimension of two-dimensional coordinate system by one group of space and nonoverlapping induction trace; And
Drive layer, be positioned at described second surface, described driving layer drives trace, one group of shield traces and some conductive lead wires by one group, described driving trace and shield traces form along the second dimension alternative arrangement of two-dimensional coordinate system, described driving trace and described induction trace are mutually overlapping, described driving trace and described shield traces space and not overlapping, described in each, conductive lead wire is electrically connected with driving trace described in one.
2. touch sensible element according to claim 1, is characterized in that, all strips linearly of described driving trace and shield traces, and described driving trace equates with shield traces width.
3. touch sensible element according to claim 1, it is characterized in that, described inductive layer also comprises that one group of inductive layer assists trace, the auxiliary trace of described inductive layer and described induction trace are along the first dimension alternative arrangement of described two-dimensional coordinate system, the auxiliary trace of described inductive layer and described induction trace space and not overlapping, each article of auxiliary trace of inductive layer formed along the two-dimensional arrangements of described two-dimensional coordinate system by multiple conducting blocks.
4. touch sensible element according to claim 1, is characterized in that, the overlapping region of described induction trace and described driving trace and shield traces offers through hole, in described through hole, is provided with conducting block.
5. touch sensible element according to claim 4, is characterized in that, is provided with two conducting blocks in each through hole.
6. touch sensible element according to claim 4, is characterized in that, described conducting block is rectangle, circle, parallelogram, trapezoidal or triangle.
7. touch sensible element according to claim 1, it is characterized in that, described driving layer also comprises the auxiliary trace of the driving layer being arranged between described driving trace and described shield traces, the described auxiliary trace of layer that drive arranged and formed along the first dimension of described two-dimensional coordinate system by multiple conducting blocks, the described driving auxiliary trace of layer and described driving trace mutually insulated.
8. touch sensible element according to claim 1, is characterized in that, the auxiliary trace of described driving layer falls into described induction trace in the orthogonal projection of described inductive layer.
9. a touch-screen, is characterized in that, comprises the touch sensible element as described in claim 1-8 any one.
10. touch-screen according to claim 9, is characterized in that, described touch-screen also comprises the panel that is covered in described inductive layer surface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310002301.3A CN103914191B (en) | 2013-01-05 | 2013-01-05 | Touch sensible element and touch-screen |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310002301.3A CN103914191B (en) | 2013-01-05 | 2013-01-05 | Touch sensible element and touch-screen |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103914191A true CN103914191A (en) | 2014-07-09 |
| CN103914191B CN103914191B (en) | 2017-10-24 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310002301.3A Expired - Fee Related CN103914191B (en) | 2013-01-05 | 2013-01-05 | Touch sensible element and touch-screen |
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| Country | Link |
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| CN (1) | CN103914191B (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104571702A (en) * | 2014-12-30 | 2015-04-29 | 伯恩光学(惠州)有限公司 | Touch screen |
| CN104571704A (en) * | 2014-12-30 | 2015-04-29 | 伯恩光学(惠州)有限公司 | Touch screen |
| CN106708194A (en) * | 2016-12-28 | 2017-05-24 | 上海艺时网络科技有限公司 | Electronic device |
| CN108733271A (en) * | 2018-07-19 | 2018-11-02 | 清远市蓝海慧谷智能科技有限公司 | A kind of touch conductor of capacitance touch screen |
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| CN102081484A (en) * | 2009-11-30 | 2011-06-01 | 上海天马微电子有限公司 | Capacitance type touch sensing device and forming method thereof as well as touch display device |
| CN102200866A (en) * | 2010-03-24 | 2011-09-28 | 上海天马微电子有限公司 | Mutual capacitance touch sensor , detection method thereof and touch display device |
| US20120075239A1 (en) * | 2010-09-24 | 2012-03-29 | Sony Corporation | Touch detector and method of driving the same, display with touch detection function, and electronic unit |
| CN203178952U (en) * | 2013-01-05 | 2013-09-04 | 深圳欧菲光科技股份有限公司 | Touch sensing element and touch screen |
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- 2013-01-05 CN CN201310002301.3A patent/CN103914191B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN101566895A (en) * | 2008-04-25 | 2009-10-28 | 苹果公司 | Brick layout and stackup for touch screen |
| CN102081484A (en) * | 2009-11-30 | 2011-06-01 | 上海天马微电子有限公司 | Capacitance type touch sensing device and forming method thereof as well as touch display device |
| CN102200866A (en) * | 2010-03-24 | 2011-09-28 | 上海天马微电子有限公司 | Mutual capacitance touch sensor , detection method thereof and touch display device |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104571702A (en) * | 2014-12-30 | 2015-04-29 | 伯恩光学(惠州)有限公司 | Touch screen |
| CN104571704A (en) * | 2014-12-30 | 2015-04-29 | 伯恩光学(惠州)有限公司 | Touch screen |
| CN106708194A (en) * | 2016-12-28 | 2017-05-24 | 上海艺时网络科技有限公司 | Electronic device |
| CN106708194B (en) * | 2016-12-28 | 2023-11-07 | 南昌黑鲨科技有限公司 | Electronic equipment |
| CN108733271A (en) * | 2018-07-19 | 2018-11-02 | 清远市蓝海慧谷智能科技有限公司 | A kind of touch conductor of capacitance touch screen |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103914191B (en) | 2017-10-24 |
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