CN103970313A - Touch inducing element and touch screen - Google Patents
Touch inducing element and touch screen Download PDFInfo
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- CN103970313A CN103970313A CN201310029765.3A CN201310029765A CN103970313A CN 103970313 A CN103970313 A CN 103970313A CN 201310029765 A CN201310029765 A CN 201310029765A CN 103970313 A CN103970313 A CN 103970313A
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Abstract
A touch inducing element comprises an insulating layer, an inducing layer and a driving layer, wherein the insulating layer is provided with a first surface and a second surface opposite to the first surface; the inducing layer is arranged on the first surface, and comprises a group of inducing traces, which are at intervals mutually, are not overlapped, and are arrayed along the first dimension of a two-dimensional coordinate system; the driving layer is arranged on the second surface, and comprises a plurality of conductive lead wires and a group of driving traces which are at intervals mutually, are not overlapped, and are arrayed along the second dimension of the two-dimensional coordinate system; the driving traces are spatially overlapping with the inducing traces; each conductive lead wire is electrically connected with at least two adjacent driving traces. The touch inducing element is relatively high in resolution, low in cost, and conducive to realize narrow edge frames of screened electronic products. The invention further provides a 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, the resolution of touch-screen is lower.Industry also has people to drive trace to be designed to have less width dense arrangement, but, the also corresponding increase of quantity of the conductive lead wire corresponding with driving trace, be unfavorable for cost, and in the time that conductive lead wire is located at driving trace side direction, take and drive the larger width of trace side direction, be unfavorable for having screen products to realize narrow frame.
Summary of the invention
Based on this, be necessary to provide one to there is high-resolution, cost is low and be conducive to realize the touch sensible element that has screen electronic product narrow frame and the touch-screen that uses 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 comprises some conductive lead wires and one group of space and nonoverlapping driving trace, described driving trace is along the two-dimensional arrangements of two-dimensional coordinate system, described driving trace and described induction trace space are overlapping, and the described driving trace that described in each, conductive lead wire is adjacent with at least two is electrically connected.
In an embodiment, each conductive lead wire comprises joint and extension line therein, and described joint is strip, and described joint is electrically connected with the end of described at least two adjacent driving traces, and described extension line extends to relative opposite side from described joint.
In an embodiment, between adjacent described two driving electric traces, form a clearance for insulation therein, the tie point of described extension line and described joint is just to described clearance for insulation.
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, 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 two adjacent described driving 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, do not limit the width of the driving trace that drives layer, therefore can design as required less width dense arrangement, thereby can improve the resolution of touch-screen; The driving trace that each conductive lead wire is adjacent with at least two is electrically connected, making with the quantity of the conductive lead wire that drives trace to be electrically connected is to drive 1/2nd of number of traces, even still less, thereby can reduce costs, further, in the time that conductive lead wire is located at driving trace side direction, due to the negligible amounts of conductive lead wire, thereby it is also less that conductive lead wire takies the width of frame, being conducive to realize has the narrow frame of screen electronic product.
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 to arrange and form along the second dimension Y of two-dimensional coordinate system by some driving traces 152.Many drive trace 152 spaces and not overlapping.Drive trace 152 overlapping with induction trace 132 spaces, drive trace 152 not coplanar with induction trace 132, but drive trace 152 overlapping with induction trace 132 in the orthogonal projection of inductive layer 130.Between two adjacent driving traces 152, form a clearance for insulation 156.In present embodiment, drive trace 152 to be roughly strip and extend along the first dimension X.Drive trace 152 to be made 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.The driving trace 152 that each conductive lead wire 157 is adjacent with two is electrically connected, and same conductive lead wire 157 be electrically connected two drives between traces 152 without other annexations.Conductive lead wire 157 is formed by etching or printing by conductive silver glue or other transparent conductive material.
Further, conductive lead wire 157 comprises joint 1572 and extension line 1574.In present embodiment, joint 1572 is strip.The width of adjacent two ends that drive traces 152 and equal in length at these two the width sums that drive the clearance for insulation 156 between trace 152 and joint 1572, thus fit joint 1572 be electrically connected with driving trace 152 with the end of adjacent driving trace 152 in limit of joint 1572.Extension line 1574 extends and is arranged in the side direction of driving trace 152 away from a side bending of driving trace 152 from joint 1572.The tie point 1576 of extension line 1574 and joint 1572 just to and two clearance for insulations 156 that drive between traces 152 being electrically connected of joint 1572.It should be noted that, joint 1572 is not limited to strip, also can be other geometric configuration, two adjacent length that drive the width sum of the width of trace 152 and the clearance for insulation 156 between these two driving traces 152 also can be slightly smaller than or be greater than a limit of joint 1572.Certainly, a joint 1572 is not limited to the driving trace 152 adjacent with two and is electrically connected, and driving trace 152 that also can be above with two is electrically connected.
Further, drive layer 150 also to comprise and be placed in the auxiliary trace 158 of the driving layer driving between trace 152.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 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 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.
Due to the width of the driving trace 152 that drives layer 150 is not limited, therefore can design as required less width dense arrangement, thereby can improve the resolution of touch-screen 100; The driving trace 152 that each conductive lead wire 157 is adjacent with at least two is electrically connected, the quantity of the conductive lead wire 157 making and drive trace 152 to be electrically connected is to drive 1/2nd of trace 152 quantity, even still less, thereby can reduce costs, further, in the time that conductive lead wire 157 is located at driving trace 152 side direction, due to the negligible amounts of conductive lead wire 157, drive the less width of trace 152 side direction thereby take, being conducive to realize has the narrow frame of screen electronic product.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 comprises some conductive lead wires and one group of space and nonoverlapping driving trace, described driving trace is along the two-dimensional arrangements of two-dimensional coordinate system, described driving trace and described induction trace space are overlapping, and the described driving trace that described in each, conductive lead wire is adjacent with at least two is electrically connected.
2. touch sensible element according to claim 1, it is characterized in that, each conductive lead wire comprises joint and extension line, described joint is strip, described joint is electrically connected with the end of described at least two adjacent driving traces, and described extension line extends to relative opposite side from described joint.
3. touch sensible element according to claim 2, is characterized in that, between adjacent described two driving electric traces, forms a clearance for insulation, and the tie point of described extension line and described joint is just to described clearance for insulation.
4. 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.
5. touch sensible element according to claim 1, is characterized in that, the overlapping region of described induction trace and described driving trace offers through hole, in described through hole, is provided with conducting block.
6. touch sensible element according to claim 5, 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 two adjacent described driving 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 7, 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 |
|---|---|---|---|
| CN201310029765.3A CN103970313A (en) | 2013-01-25 | 2013-01-25 | Touch inducing element and touch screen |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310029765.3A CN103970313A (en) | 2013-01-25 | 2013-01-25 | Touch inducing element and touch screen |
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| CN103970313A true CN103970313A (en) | 2014-08-06 |
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| CN201310029765.3A Pending CN103970313A (en) | 2013-01-25 | 2013-01-25 | Touch inducing element and touch screen |
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| CN104267853A (en) * | 2014-10-13 | 2015-01-07 | 深圳欧菲光科技股份有限公司 | Touch screen |
| CN107678587A (en) * | 2017-09-27 | 2018-02-09 | 深圳市骏达光电股份有限公司 | Touch sensitive layer and preparation method thereof |
| WO2019010639A1 (en) * | 2017-07-12 | 2019-01-17 | Hewlett-Packard Development Company, L.P. | Narrow border touch sensors |
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| CN101571781A (en) * | 2008-04-30 | 2009-11-04 | 统宝光电股份有限公司 | Display device |
| US20100085326A1 (en) * | 2008-10-03 | 2010-04-08 | Hitachi Displays, Ltd. | Display device |
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