CN105549799B - The high light transmission and high sensitivity touch pattern structure of capacitive type touch pad - Google Patents
The high light transmission and high sensitivity touch pattern structure of capacitive type touch pad Download PDFInfo
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- CN105549799B CN105549799B CN201410598732.5A CN201410598732A CN105549799B CN 105549799 B CN105549799 B CN 105549799B CN 201410598732 A CN201410598732 A CN 201410598732A CN 105549799 B CN105549799 B CN 105549799B
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- line segment
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- pattern structure
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Abstract
The present invention proposes the high light transmission and high sensitivity touch pattern structure of a kind of capacitive type touch pad, is formed on a surface of a substrate.Conductive group, each of a plurality of first conductive groups first is arranged in parallel along first direction, wherein, each first conductive group is made of a plurality of first conductive units, each first conductive unit is made of at least one first meandering conductor line segment and at least one first straight line line segment.Conductive group, each of a plurality of second conductive groups second is arranged in parallel along first direction, each second conductive group is made of a plurality of second conductive units, each second conductive unit is made of at least one second meandering conductor line segment.A plurality of first conductive units and a plurality of second conductive units form capacitance type sensor array.
Description
Technical field
The present disclosure generally relates to the technical field of touch tablet, the high light transmission and high sensitivity touch-control of espespecially a kind of capacitive type touch pad
Pattern structure.
Background technique
The technical principle of touch panel, according to different induction modes, is detectd when finger or other media contacts are to screen
Voltage, electric current, sound wave or infrared ray etc. are surveyed, the coordinate position of touch point is measured with this.Such as capacitance type touch-control panel is to utilize
Capacitance variations caused by electrostatical binding between the transparent electrode and human body of arrangement, are detected from generated current or voltage
Its coordinate.
The schematic diagram of the structure of the known capacitance type touch-control panel of Fig. 1 system one, conductive plate (conductive plate) system with
Metal is arranged in the upper and lower of a substrate.As shown in Figure 1, conductive plate forms one first in the lower section of the substrate with horizontal direction
Array is simultaneously respectively provided with conductor lines X1, X2, X3 ..., and conductive plate simultaneously forms one second array in the top of substrate with vertical direction
And it is respectively provided with conductor lines Y1, Y2, Y3 ....Each conductor lines X1, X2, X3 ..., Y1, Y2, Y3 ... be with alternately and overlap
Ground arrangement.When one drive circuit 110 generates a driving signal, a circuit for detecting 120 is by detecting electrode plate and electrode plate
Between peripheral inductance capacitance electric field change amount, to detect coordinate.However, the structure of such touch panel need to have two layers of conductor
Line increases processing program, and then improves manufacturing cost.
The schematic diagram of the structure of the capacitance type touch-control panel of No. 4,550,221 patent announcement in the U.S. Tu2Xi.Conductive plate
(conductive plate) 30 systems are arranged on a substrate 28 with thin metal, and form a specific shape (such as with etching mode
Diamond-shaped).As shown in Figure 1, conductive plate 30 forms one first array in the horizontal direction and is respectively provided with conductor lines X1, X2,
X3 ..., X12 form one second array in vertical direction and are respectively provided with conductor lines Y1, Y2, Y3 ..., Y12.Each conductor lines
X1-X12, Y1-Y12 have most electrode plates, described to wait electrode plates system alternately, not to be arranged on substrate overlappingly.
The diamond-shaped metal plate of each conductor lines Y1-Y12 has at least two edges and the metal plate of conductor lines X1-X12 adjoining,
At most there are four edge and the metal plate of conductor lines X1-X12 are adjoining.Meanwhile the diamond-shaped gold of each conductor lines X1-X12
Belonging to plate has at least two edges and the metal plate of conductor lines Y1-Y12 adjoining, and at most there are four edge and conductor lines Y1-Y12
Metal plate it is adjoining.When one drive circuit (not shown) generates a driving signal, a circuit for detecting (not shown) is by detecing
The electric field change amount for surveying the side inductance capacitance between conductor lines Y1-Y12 and conductor lines X1-X12, to detect coordinate.It is such
The structure of capacitance type touch-control panel its conductor lines Y1-Y12 and conductor lines X1-X12 are in same layer, though processing program can be reduced.So
And need to be electrically connected with bridge between the diamond-shaped metal plate of conductor lines X1-X12, also this increases manufacturing cost, together
When bridge often can not carry out touch position detecting because of fracture.Therefore, the touch-control pattern knot of known capacitance type touch-control panel
Structure still has improvedd space in fact.
Summary of the invention
One of the objects of the present invention is to provide the high light transmission of a capacitive type touch pad and high sensitivity touch pattern structures, can
Increase sensing area increasing, power line, easily can correctly detect touching for finger, together when carrying out touch detection
When can avoid graphic style visually seen.
The present invention proposes the high light transmission and high sensitivity touch pattern structure of a kind of capacitive type touch pad, is formed in a substrate
On surface, the touch pattern structure includes a plurality of first conductive groups, a plurality of second conductive groups and a plurality of the
One cabling.Each first conductive group of a plurality of first conductive groups is arranged in parallel along first direction, each the
One conductive group is made of a plurality of first conductive units, each first conductive unit is by least one the first meandering conductor
Line segment and at least one first straight line line segment are constituted, and a plurality of first conductive group forms a simple layer, and by described
One surface of substrate is supported.Each second conductive system, group of a plurality of second conductive group is parallel along first direction
Arrangement, each second conductive group are made of a plurality of second conductive units, each second conductive unit is by extremely
A few second meandering conductor line segment is constituted, a plurality of second conductive system, group and the described a plurality of first conductive groups
In same layer.Described a plurality of first walk linear system and a plurality of second conductive groups in same layer, and each first is walked
Line is coupled to a plurality of first conductive units system electrical connection in the first conductive group described in a second different conductive unit,
A plurality of first conductive units and a plurality of second conductive units form capacitance type sensor array, each capacitance type sensor
Include first conductive unit and second conductive unit.
Between first conductive unit and the second conductive unit, because using the first meandering conductor line segment and the second complications to lead
Body line segment can make sensing area increase, and make driving electrodes (drive electrode) and sensing electrode (sense
Electrode power line increases between), therefore inductance capacitance is dramatically increased, and circuit for detecting easily can correctly detect hand
What is referred to touches.
Detailed description of the invention
Fig. 1 is the schematic diagram of the structure of an existing capacitance type touch-control panel.
Fig. 2 is the schematic diagram of the structure of another existing capacitance type touch-control panel.
Fig. 3 is a kind of high light transmission of capacitive type touch pad of the present invention and the schematic diagram of high sensitivity touch pattern structure.
Fig. 4 is the schematic diagram of the first conductive unit of the invention.
Fig. 5 is the schematic diagram of the second conductive unit of the invention.
Fig. 6 is a kind of high light transmission of capacitive type touch pad of the present invention and another schematic diagram of high sensitivity touch pattern structure.
Fig. 7 is another schematic diagram of the first conductive unit of the present invention, second conductive unit and false electrode.
[symbol description]
110 circuit for detecting 120 of driving circuit
20,28 conductive plate 30 of substrate
The high light transmission and high sensitivity touch pattern structure 300 of capacitive type touch pad
First conductive group 410, conductive group 310 second
First cabling, 510 second cabling 610
First conductive unit, 320 first meandering conductor line segment 330
340 second straight line line segment 350 of first straight line line segment
Second 410 second conductive unit 420 of conductive group
The false electrode 550 of second meandering conductor line segment 430
The 4th meandering conductor line segment 370 of third meandering conductor line segment 360
The 5th meandering conductor line segment 450 of second straight line line segment 440
Controller 90
Specific embodiment
Fig. 3 is a kind of high light transmission of capacitive type touch pad of the present invention and the schematic diagram of high sensitivity touch pattern structure 300.Institute
High light transmission and high sensitivity touch pattern structure 300 are stated, is formed on the surface of a substrate 20, the touch pattern structure 300 is wrapped
The a plurality of first conductive groups 310, a plurality of second conductive groups 410 and a plurality of first cablings 510 are included.
The a plurality of first conductive group 310 is arranged in parallel along first direction (X-direction).Each first conductive group
Group 310 is made of a plurality of first conductive units 320.Fig. 4 is the schematic diagram of the first conductive unit 320 of the invention.Such as Fig. 4 institute
Show, each first conductive unit 320 is by least one first meandering conductor line segment 330 and at least one first straight line line segment
340 are constituted, and a plurality of first conductive group 310 forms a simple layer, and is supported by a surface of the substrate 20.
The a plurality of second conductive group 410 is arranged in parallel along first direction.Each second conductive group 410 is by multiple
Several second conductive units 420 are constituted.Fig. 5 is the schematic diagram of the second conductive unit 420 of the invention.Each second conductive list
Member 420 is made of at least one second meandering conductor line segment 430, a plurality of second conductive group 410 and the plural number
A first conductive group 310 is in same layer.Wherein, first conductive unit 320 is used as driving electrodes (drive
Electrode) and second conductive unit 420 is used as sensing electrode (sense electrode).
A plurality of first cablings 510 with the described a plurality of second conductive groups 410 in same layer, and each first
Cabling 510 is coupled to a second different conductive unit 420, with transmit the second different conductive units 420 sensed it is electrical
Signal is to a controller (not shown).
A plurality of first conductive units 320 electrical connection in described first conductive group 310.As shown in figure 3, in circle
At A, first conductive unit 320 is electrically connected together with another first conductive unit 320, is led with forming one first
Electric group 310.First conductive group 310 can be connected to controller 90 via one second cabling 610.
In other embodiments, first conductive unit 320 can be made for sensing electrode, second conductive unit 420
For driving electrodes.At this point, the controller 90 can be in one first period to second conduction of first row when being sensed
Unit 420 applies driving signal (TX), and receives sensing signal (TX) by a plurality of first conductive groups 310.When one second
Section applies driving signal (TX) to second conductive unit 420 of secondary series, and is received by a plurality of first conductive groups 310
It senses signal (TX).Driving signal (TX) sequentially is applied to second conductive unit 420 of column, then can get a sensing whereby
The sensing signal of plane.
A plurality of first conductive units 320 form capacitance type sensor array with a plurality of second conductive units 420, each
A capacitance type sensor system includes first conductive unit 320 and second conductive unit 420.
As shown in figure 3, not being electrically connected between the different first conductive group 310.The second different conductive units
It is not electrically connected between 420, each 420 system of the second conductive unit is connected to the control by the first different cablings 510
Device 90.The exportable sensing of controller 90 drives signal, to respectively drive the conductive group 310 of different first.Controller 90 simultaneously can
By the first different cablings 510 to receive the electrical signal that the second different conductive units 420 is sensed.Therefore one first conductive
Unit 320 and second conductive unit 420 can form a capacitance type sensor.
The first conductive unit 320 of the last one further includes a second straight line line segment in the first conductive group 310
350.Also that is, the first conductive group 310 can be connected to second cabling 610 via second straight line line segment 350, it is then connected to control
Device 90 processed.
A false electrode (dummy is provided between first conductive unit 320 and second conductive unit 420
electrode)550.550 system of the falseness electrode is evenly distributed in first conductive unit 320 and the described second conductive list
Between member 420, the graphic style of first conductive unit 320 and second conductive unit 420 is not easy to be visually seen.
As shown in figure 3, a plurality of first conductive units 320 lie in a second direction (Y- axis direction) setting, it is described
A plurality of second conductive units 420 lie in the second direction setting.Please refer to Fig. 4 and Fig. 5, at least one described first complications
Conductor line segment 330 and at least one second meandering conductor line segment 430 are arranged in the second direction, and described at least one is first straight
Line line segment 340 is arranged in the first direction.Wherein, at least one first meandering conductor line segment 330 and the second direction at
One angle, θ, at least one described second meandering conductor line segment 430 is with the second direction at the angle, θ.It is described at least one
First meandering conductor line segment 330 is connect with one end of at least one first straight line line segment 340.The angle, θ is 0 ° and small big
In 90 °
Fig. 6 is a kind of another signal of the high light transmission and high sensitivity touch pattern structure 300 of capacitive type touch pad of the present invention
Figure.It is with Fig. 3 main difference is that the newly-increased third meandering conductor line segment 360 and one the 4th of first conductive unit 320 is bent
Roll over conductor line segment 370, second conductive unit 420 increases a second straight line line segment 440 and one the 5th meandering conductor line segment newly
450。
Fig. 7 is the first conductive unit 320 of the present invention, second conductive unit 420 and false electrode (dummy
Electrode) 550 another schematic diagram.Wherein, first conductive unit 320 further include 360 sections of third meandering conductor line and
4th meandering conductor line segment 370.The third meandering conductor line segment 360 and the 4th meandering conductor line segment 370 and it is described extremely
It is connected at one non-endpoint of a few first straight line line segment 340.Referring to Figure 6 together and Fig. 7, at circle B, the third is bent
It rolls over and is connected at a non-endpoint of at least one first straight line line segment 340 described in conductor line segment 360.Meanwhile the 4th complications are led
One non-endpoint of at least one first straight line line segment 340 of body line segment 370 and next first conductive unit 320
Place's connection.
Second conductive unit 420 further includes and at least one second straight line line segment 440, one the 5th meandering conductor line segment
450.At least one second meandering conductor line segment 430 is connect with one end of at least one second straight line line segment 440, and described
It is connect at five meandering conductor line segments 450 and a non-endpoint of at least one second straight line line segment 440.
The third meandering conductor line segment 360 and the 4th meandering conductor line segment 370 and the 5th meandering conductor line
A false electrode 550 is provided between section 450.A plurality of first conductive units 320, a plurality of second conductive units
420, a plurality of first cablings 510 and a plurality of second cablings 610 are made by transparent conductive material.Wherein, described transparent
Conductive material be tin indium oxide material (Indium Tin Oxide, ITO).The first direction system is perpendicular to the second party
To.
By preceding description it is found that between first conductive unit 320 and the second conductive unit 420, because using first
Meandering conductor line segment 330 and the second meandering conductor line segment 430, can make sensing area increase, and make driving electrodes (drive
Electrode) power line increases between sensing electrode (sense electrode), therefore inductance capacitance is dramatically increased,
Circuit for detecting easily can correctly detect touching for finger.Meanwhile in the first meandering conductor line segment 330 and the second meandering conductor line
It is provided with a false electrode 550 between section 430, can avoid the figure of the first conductive unit 320 and second conductive unit 420
Pattern is easy to be visually seen.
Although however, it is not to limit the invention in conclusion the present invention has been disclosed as a preferred embodiment.This hair
Bright those of ordinary skill in the art, without departing from the spirit and scope of the present invention, when various changes can be made
With retouching.Therefore, protection scope of the present invention should be defined by the scope of the appended claims.
Claims (16)
1. the high light transmission and high sensitivity touch pattern structure of a kind of capacitive type touch pad, are formed on the surface of a substrate, described
Touch pattern structure includes:
A plurality of first conductive groups, it is arranged in parallel along first direction, wherein a plurality of first conductive group is respectively by multiple
Several first conductive units are constituted, each first conductive unit by least one first meandering conductor line segment and at least one
First straight line line segment is constituted, and a plurality of first conductive group forms simple layer, and is supported by the surface of the substrate；
A plurality of first conductive unit electrical connections in described first conductive group；
A plurality of second conductive groups, each second conductive system, group is arranged in parallel along first direction, each second conduction
Group is made of a plurality of second conductive units, and a plurality of second conductive units system is respectively by least one the second song
Folding conductor line segment is constituted, and a plurality of second conductive system, group is with the described a plurality of first conductive group positions in the substrate
Surface；A plurality of second conductive units lie in second direction setting；And
A plurality of first cablings, with a plurality of second conductive groups on the surface of the substrate, and described a plurality of the
One cabling is coupled respectively to a plurality of second conductive units therein one；
Wherein, a plurality of first conductive units system electrical connection in the described first conductive group, a plurality of first conductive units
Capacitance type sensor array is formed with a plurality of second conductive units, each capacitance type sensor includes one first conductive single
Member and second conductive unit；
A false electrode is provided between first conductive unit and second conductive unit；
It is not electrically connected between different second conductive units, each described second conductive unit is by different institutes
It states the first cabling and is connected to controller.
2. the high light transmission and high sensitivity touch pattern structure of capacitive type touch pad as described in claim 1, which is characterized in that institute
A plurality of first conductive units are stated to set in second direction setting and a plurality of second conductive units in the second direction
It sets.
3. the high light transmission and high sensitivity touch pattern structure of capacitive type touch pad as claimed in claim 2, which is characterized in that extremely
A few first meandering conductor line segment and at least one second meandering conductor line segment in the second direction be arranged and it is described extremely
A few first straight line line segment is arranged in the first direction.
4. the high light transmission and high sensitivity touch pattern structure of capacitive type touch pad as claimed in claim 3, which is characterized in that institute
State at least one first meandering conductor line segment and second direction θ at an angle, at least one described second meandering conductor line
Section is with the second direction at the angle, θ.
5. the high light transmission and high sensitivity touch pattern structure of capacitive type touch pad as described in claim 1, which is characterized in that institute
At least one first meandering conductor line segment is stated to connect with one end of at least one first straight line line segment.
6. the high light transmission and high sensitivity touch pattern structure of capacitive type touch pad as claimed in claim 5, which is characterized in that institute
It states the first conductive unit and further includes a third meandering conductor line segment and one the 4th meandering conductor line segment, the third meandering conductor line
It is connect at section and the 4th meandering conductor line segment and a non-endpoint of at least one first straight line line segment.
7. the high light transmission and high sensitivity touch pattern structure of capacitive type touch pad as claimed in claim 6, which is characterized in that institute
The second conductive unit is stated to further include and at least one second straight line line segment, one the 5th meandering conductor line segment, it is described at least one
Two meandering conductor line segments are connect with one end of at least one second straight line line segment, the 5th meandering conductor line segment with it is described
It is connected at the non-endpoint of the one of at least one second straight line line segment.
8. the high light transmission and high sensitivity touch pattern structure of capacitive type touch pad as claimed in claim 7, which is characterized in that institute
It states and is provided between third meandering conductor line segment (360) and the 4th meandering conductor line segment and the 5th meandering conductor line segment
One false electrode.
9. the high light transmission and high sensitivity touch pattern structure of capacitive type touch pad as claimed in claim 8, which is characterized in that institute
The first conductive unit is stated as driving electrodes and second conductive unit as sensing electrode.
10. the high light transmission and high sensitivity touch pattern structure of capacitive type touch pad as claimed in claim 8, which is characterized in that
First conductive unit is as sensing electrode and second conductive unit as driving electrodes.
11. the high light transmission and high sensitivity touch pattern structure of capacitive type touch pad as claimed in claim 4, which is characterized in that
The angle, θ is greater than 0 ° and less than 90 °.
12. the high light transmission and high sensitivity touch pattern structure of capacitive type touch pad as described in claim 1, described a plurality of
One conductive unit, a plurality of second conductive units and a plurality of first cablings are made by transparent conductive material.
13. the high light transmission and high sensitivity touch pattern structure of capacitive type touch pad as claimed in claim 12, which is characterized in that
The transparent conductive material is tin indium oxide material.
14. the high light transmission and high sensitivity touch pattern structure of capacitive type touch pad as described in claim 1, which is characterized in that
The first direction is perpendicular to the second direction.
15. the high light transmission and high sensitivity touch pattern structure of capacitive type touch pad as described in claim 1, which is characterized in that
It is not electrically connected in the described a plurality of first conductive mutual of groups.
16. the high light transmission and high sensitivity touch pattern structure of capacitive type touch pad as claimed in claim 15, which is characterized in that
Controller output sensing driving signal, to respectively drive the described a plurality of first conductive groups, the controller and by
By the electrical signal sensed by different first cablings to receive corresponding second conductive unit, Jin Errang
First conductive unit and second conductive unit form a capacitance type sensor.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201410598732.5A CN105549799B (en) | 2014-10-29 | 2014-10-29 | The high light transmission and high sensitivity touch pattern structure of capacitive type touch pad |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201410598732.5A CN105549799B (en) | 2014-10-29 | 2014-10-29 | The high light transmission and high sensitivity touch pattern structure of capacitive type touch pad |
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| CN105549799B true CN105549799B (en) | 2019-03-15 |
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Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102937855A (en) * | 2012-10-23 | 2013-02-20 | 深圳南玻伟光导电膜有限公司 | Capacitive touch panel |
| CN103092396A (en) * | 2011-10-28 | 2013-05-08 | 宇辰光电股份有限公司 | Touch screen panel |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8564552B2 (en) * | 2009-10-26 | 2013-10-22 | Atmel Corporation | Touchscreen electrode arrangement with varied proportionate density |
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Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103092396A (en) * | 2011-10-28 | 2013-05-08 | 宇辰光电股份有限公司 | Touch screen panel |
| CN102937855A (en) * | 2012-10-23 | 2013-02-20 | 深圳南玻伟光导电膜有限公司 | Capacitive touch panel |
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