CN207833482U - Mutual-capacitive touch panel with duallayered electrode structure - Google Patents
Mutual-capacitive touch panel with duallayered electrode structure Download PDFInfo
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- CN207833482U CN207833482U CN201820008849.7U CN201820008849U CN207833482U CN 207833482 U CN207833482 U CN 207833482U CN 201820008849 U CN201820008849 U CN 201820008849U CN 207833482 U CN207833482 U CN 207833482U
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Abstract
The utility model provides a kind of mutual-capacitive touch panel, including the first conductive layer and the second conductive layer.First conductive layer includes multiple electrodes for being arranged in an array and a plurality of connecting line segment.In every a line of array, it is located at the electrode permeation parts connecting line segment that (N × M) 1 is arranged and is electrically connected to each other into a first electrode tandem, and a second electrode tandem is electrically connected to each other into positioned at the second connecting line segment of electrode permeation parts of N × M row.Second conductive layer includes a plurality of electrode strip, extends and is simultaneously overlapped respectively with the electrode of a corresponding row respectively along the column direction of array, wherein each electrode strip includes multiple shielding portions, each shielding portion is overlapped with one of corresponding connecting line segment respectively.
Description
Technical field
The utility model is about a kind of mutual-capacitive touch panel, and espespecially a kind of mutual capacitance type with duallayered electrode structure is touched
Control panel.
Background technology
As science and technology is maked rapid progress, the touch control display apparatus being made of display and touch panel due to that can realize simultaneously
Touch-control and display function, and the characteristic with human-computer interaction, have been widely used in smart mobile phone (smart phone), satellite
Navigation system (GPS navigator system), tablet computer (tablet PC) and notebook computer (laptop PC) etc.
On electronic product.Wherein, mutual-capacitive touch panel is due to high-accuracy, multi-point touch, high durability and high touch-control solution
The advantages that analysis is spent, it has also become mainstream touch technology used in industry at present.
Mutual capacitance type touch technology is mainly neighbouring or when contacting through the touch control unit on detection touch objects and touch panel, because
Electrostatic in touch objects generates coupled capacitor variation with touch control unit, and then judges touch event.Mutual capacitance type touch technology is being tied
Single layer electrode structure and two types of duallayered electrode structure can be mainly divided into structure design.Since duallayered electrode structure is in structure
Design with control algorithm on compared with single layer electrode structure simply be easy, the design of duallayered electrode structure is widely used in middle height
In the consumer electrical product of rank.In the design of conventional double electrode structure, induction tandem is with driving tandem respectively along phase
Mutually vertical horizontal direction extends with vertical direction, therefore the conducting wire for connecting induction tandem certainly will will connect from the both sides of induction tandem
Induction tandem is connect, so that the range of the peripheral region of the horizontal both sides of touch panel is limited to the quantity of conducting wire and can not reduce.For
This, develops the driving tandem of same a line dividing into two driving tandems, and two adjacent induction tandems are electrically connected each other at present
It connects, the quantity of the conducting wire of induction tandem is connected with reduction, and then effectively reduce the touch panel of border width.
In order to which the driving tandem of same a line is divided into two driving tandems, the same a line of electrical connection need to be reached through connecting line
And odd column driving electrodes and electrical connection with a line and the driving electrodes of even column.Thus, when touch control object is along Y-axis
When direction is moved linearly, the motion track measured from induction tandem and non-directional situation are had.As shown in Figure 1,
When touch control object moves linearly along Y direction, measuring track in the X-axis direction fluctuate by left and right, that is, touch panel
The motion track detected does not meet the practical motion track of touch control object, and has and detect inaccurate problem.
Utility model content
One of the purpose of this utility model is to provide a kind of mutual-capacitive touch panel with duallayered electrode structure, have
Detection precision is promoted in the case of having a small amount of conducting wire.
For achieve the above purposes, the utility model proposes a kind of mutual-capacitive touch panels, have a Touch Zone and one
Peripheral region.Mutual-capacitive touch panel includes one first conductive layer, one second conductive layer and an insulating layer.First conductive layer includes
Multiple electrodes and a plurality of connecting line segment.Electrode arrangement is located at an array in Touch Zone, wherein in every a line of array
In, it is located at the electrode that (N × M) -1 is arranged and is electrically connected to each other into a first electrode tandem, and is electric each other positioned at the electrode of N × M row
Property connect into a second electrode tandem, N is the positive integer more than or equal to 2, and M is the positive integer more than or equal to 1.Connecting line segment includes
A plurality of first connecting line segment and a plurality of second connecting line segment, and each first connecting line segment is separately connected corresponding first electrode tandem
One of in two adjacent electrodes, each second connecting line segment is separately connected two in one of corresponding second electrode tandem
Adjacent electrode.Second conductive layer is set on the first conductive layer, and the second conductive layer includes M electrode strip groups insulated from each other, edge
The line direction sequential of array in Touch Zone, each electrode strip group includes N strip electrode items, and each electrode strip is respectively along battle array
The column direction of row extends and is overlapped respectively on a upright projection direction with the electrode of a corresponding row, wherein each electrode strip includes more
A first stripes and multiple shielding portions, each first stripes replace series connection with each shielding portion along the column direction of array, respectively
First stripes distinguish the setting of one of counter electrode, and each shielding portion is respectively with one of corresponding connecting line segment in vertical
Be overlapped on projecting direction, and width of each shielding portion on the line direction of array be more than each first stripes array line direction
On width.Insulating layer is set between the first conductive layer and the second conductive layer.
In the mutual-capacitive touch panel of the utility model, the masking Chong Die with connecting line segment is provided in each electrode strip
Portion, and the width of shielding portion can be more than the width of the first stripes, therefore shielding portion can cover electric power caused by connecting line segment
Line, whereby the detection precision of mutual-capacitive touch panel can effectively be promoted.
Description of the drawings
For the above objects, features, and advantages of the utility model can be clearer and more comprehensible, below in conjunction with attached drawing to this practicality
Novel specific implementation mode elaborates, wherein：
Fig. 1 is painted the conventional touch panel moving rail detected when touch control object is moved linearly along Y direction
Mark.
Fig. 2 depicts the schematic side view of the utility model mutual-capacitive touch panel.
Fig. 3 is painted the schematic top plan view of the mutual-capacitive touch panel of the utility model first embodiment.
Fig. 4 is painted the schematic top plan view of the first conductive layer of the utility model first embodiment.
Fig. 5 A are painted the schematic top plan view of the second conductive layer of the utility model first embodiment.
Fig. 5 B are painted the schematic top plan view of the second conductive layer of an alternate embodiment of the utility model first embodiment.
Fig. 6 is painted connecting line segment when no shielding portion is shielded to the power line schematic diagram of corresponding electrode strip.Fig. 7 is painted
To the power line schematic diagram of corresponding electrode strip when being provided with dummy electrode on connecting line segment.Fig. 8 is painted the utility model connection
The power line schematic diagram that line segment is shielded by corresponding shielding portion.
Fig. 9 is painted the vertical view of the mutual-capacitive touch panel without shielding portion of comparative examples and corresponding coordinate
Position view.
X-axis when the mutual-capacitive touch panel detection touch control object that Figure 10 is painted comparative examples is moved linearly along Y-axis
The schematic diagram of position offset time corresponding with Y-axis position.
Figure 11 be painted when touch control object along array do not go together setting-out when the utility model first embodiment mutual capacitance type touch
The schematic diagram for the setting-out track that the mutual-capacitive touch panel of control panel and comparative examples measures.
Figure 12 is painted the schematic top plan view of the mutual-capacitive touch panel of the utility model second embodiment.
Figure 13 is painted the schematic top plan view of the mutual-capacitive touch panel of the utility model 3rd embodiment.
Figure 14 is painted the schematic top plan view of the mutual-capacitive touch panel of the utility model fourth embodiment.
The vertical view that Figure 15 is painted the mutual-capacitive touch panel of another alternate embodiment of the utility model first embodiment is shown
It is intended to.
Component label instructions are as follows in figure：
10,100,100 ', 200,300,400 mutual-capacitive touch panel
102 Touch Zones substrate 102a
The peripheral regions 102b C1, C1 conductive layer of ' first
C2, C2 conductive layer IN insulating layers of ' second
E, DEL, DEM, DER, E4 electrode
ES1 first electrode tandem ES2 second electrode tandems
E1 first electrode E2 second electrodes
CD line direction CS connecting line segments
CS1 the first connecting line segment the second connecting line segments of CS2
EP extension CP1 first connecting portions
ELM, ELM1, ELM1 ', ELM2, ELM3 electrode strip group
EL, EL7, EL8, EL9 electrode strip RD column directions
ELA1, ELA2 electrode portion ELB1, ELB3 shielding portion
The gaps SP1 the first stripes G
EL1 first electrode EL2 second electrode items
EL3 third electrode strip ES3 third electrode tandems
CS3 third connecting line segments
BP branch FE floating electrodes
CL1 the first conducting wire the second conducting wires of CL2
CP2 second connecting portions the first connection pads of P1
P2 the second connection pad TO touch control objects
SP2 the second stripes CP3 third interconnecting pieces
SL slit Z upright projections direction
Specific implementation mode
To enable those skilled in the art to be further understood that the utility model, the special implementation for enumerating the utility model below
Example, and coordinate attached drawing be described in detail the utility model constitution content and it is to be reached the effect of.It is noted that attached drawing is
Therefore simplified schematic diagram only shows element related with the utility model and syntagmatic, with to the basic of the utility model
Framework provides clearer description, and actual element is likely more complexity with layout.In addition, for convenience of explanation, this practicality
Element shown in novel each attached drawing not does equal proportion drafting, detailed ratio with the number, shape, size of actual implementation
Example can be adjusted according to the demand of design.
Referring to FIG. 2, it depicts the schematic side view of the utility model mutual-capacitive touch panel.As shown in Fig. 2, this
The mutual-capacitive touch panel 100 of embodiment have an a Touch Zone 102a and peripheral region 102b, wherein Touch Zone 102a to
Driving electrodes and induction electrode be set, and peripheral region 102b is being arranged connecting wire.In this present embodiment, peripheral region 102b can enclose
Around Touch Zone 102a, but not limited to this.Mutual-capacitive touch panel 100 is including the first conductive layer C1, the second conductive layer C2 and absolutely
Edge layer IN, wherein insulating layer IN are set between the first conductive layer C1 and the second conductive layer C2, the first conductive layer C1 and second
Conductive layer C2 can pass through the insulating layer IN of setting therebetween and be electrically insulated from, and the second conductive layer C2 is compared with the first conductive layer C1
It is neighbouring carrying out the touch control object of input instruction.Touch control object may be, for example, finger or stylus.In this present embodiment, mutual capacitance type is touched
It can includes separately substrate 102 to control panel 100, and the second conductive layer C2, insulating layer IN and the first conductive layer C1 are sequentially formed at substrate
On 102 same first side, and substrate 102 is then close to the side of touch control object relative to the second side of the first side.This practicality is new
The stacked structure of the mutual-capacitive touch panel of type is not limited.In another embodiment, the first conductive layer C1 and second is conductive
Layer C2 can be also respectively formed on film, and paste substrate 102 with the film for being provided with the second conductive layer C2 through two adhesion coatings
It closes and the film for being provided with the first conductive layer C1 and the film adhered of the second conductive layer C2 will be provided with, it is tactile to form mutual capacitance type
Panel 100 is controlled, in this embodiment, the film between the first conductive layer C1 and the second conductive layer C2 can be used as insulating layer
IN.In another embodiment, the first conductive layer C1, insulating layer IN can also sequentially be formed directly into aobvious with the second conductive layer C2
Show on the display surface of panel, for example, the colored optical filtering substrates of liquid crystal display panel or organic light emitting display panel encapsulation cover plate
On, and in the first conductive layer C1 overlyings cover substrate 102.In addition, substrate 102 may include hard substrate or flexible base plate, such as glass
It is glass substrate, hardened glass substrate, quartz base plate, sapphire substrate, hard cover plate (cover lens), plastic substrate, soft
Cover plate, soft plastic substrate or thin glass substrate.
It please refers to Fig.3 to Fig. 5 A.Fig. 3 is painted the vertical view signal of the mutual-capacitive touch panel of the utility model first embodiment
Figure, Fig. 4 are painted the schematic top plan view of the first conductive layer of the utility model first embodiment, and Fig. 5 A are painted the utility model first
The schematic top plan view of second conductive layer of embodiment.As shown in Fig. 3 and Fig. 4, the first conductive layer C1 includes multiple electrodes E, arrangement
At an array, it is located in the 102a of Touch Zone.In every a line of array, each other including at least the electrode E arranged positioned at (N × M) -1
The first electrode tandem ES1 being electrically connected, and it is located at the second electrode tandem that the electrode E of N × M row is electrically connected to each other
ES2, N are the positive integer more than or equal to 2, and M is the positive integer more than or equal to 1.Specifically, electrode E includes at least M first
Electrode E1 and M second electrode E2.First electrode E1 is located at the row of (N × M) -1, and second electrode E2 is located at N × M row, same to a line
First electrode E1 be electrically connected to each other into first electrode tandem ES1, the second electrode E2 with a line is electrically connected to each other into
Two electrode tandem ES2.That is, when the first electrode E1 that definition is electrically connected to each other is a type of electrode E, and each other
The second electrode E2 of electric connection is another type of electrode E, and the electrode E arrangements per a line are construed as：With N
Different types of electrode E is one group, sequentially repeatedly M arrangement.In this present embodiment, N is equal to 2, therefore first electrode E1 is located at
Odd column (i.e. 2M-1 row), and second electrode E2 is located at even column (i.e. 2M row).That is, in every a line of array, respectively
First electrode E1 and each second electrode E2 is sequentially alternately arranged along the line direction CD of array.In another embodiment shown in figure 15
In, N is equal to 3, then first electrode E1 is located at 3M-1 row, and second electrode E2 is located at 3M row, and includes additionally E3, third electrode
It is arranged in 3M-2.After its concrete structure is specified in.In the present embodiment of N equal to 2, for the first electrode E1 for being electrically connected with a line
Include separately a plurality of connecting line segment CS, including the first connecting line with the second electrode E2, the first conductive layer C1 for being electrically connected with a line
Section CS1 and a plurality of second connecting line segment CS2, each first connecting line segment CS1 are separately connected in corresponding first electrode tandem ES1
Two adjacent first electrode E1 (are namely located at two adjacent first electrode E1 in a line and different odd row), to form first
Electrode tandem ES1, each second connecting line segment CS2 connect two adjacent second electrode E2 in corresponding second electrode tandem ES2
(being namely located at two adjacent second electrode E2 in a line and different even columns), to form second electrode tandem ES2.Yu Ben
In embodiment, corresponding CS2 points of the first connecting line segment CS1 and the second connecting line segment with a line first electrode E1 and second electrode E2
It is not set to the both sides of same a line first electrode E1 and second electrode E2, such as is respectively arranged at left side and right side or on the contrary, borrows
This first connecting line segment CS1 and the second connecting line segment CS2 that can be staggered, it is same to be electrically connected in same first conductive layer C1
The first connecting line segment CS1 of a line first electrode E1 be electrically connected the second connecting line segment CS2 with a line second electrode E2,
And first conductive layer C1 be formed by first electrode tandem ES1 and second electrode tandem ES2 can be insulated from each other.Each connecting line segment CS
The extension EP extended along the line direction CD of array and two first connecting portions for being not parallel to extension EP can be also subdivided into
CP1, and extension EP is connected to corresponding electrode E by each first connecting portion CP1.In this present embodiment, the first electricity per a line
Pole E1 overlaps each other and is aligned on the line direction CD of array with second electrode E2.Also, the first connecting line segment CS1 is in array
First electrode E1 on line direction CD not with corresponding first electrode tandem ES1 is overlapped, and the second connecting line segment CS2 is in array
Second electrode E2 on line direction CD not with corresponding second electrode tandem ES2 is overlapped.In addition, positioned at same row but not going together
Wantonly two adjacent electrodes E is separated and insulate so that the first electrode tandem ES1 not gone together it is insulated from each other and do not go together
Two electrode tandem ES2 are insulated from each other.
As shown in Fig. 3 and Fig. 5 A, the second conductive layer C2 includes multiple electrode strip group ELM1 insulated from each other, along array
Line direction CD sequentials are in the 102a of Touch Zone, and each electrode strip group ELM1 includes N strip electrode EL, respectively along array
Column direction RD extends and is overlapped respectively on the Z of upright projection direction with the electrode of a corresponding row.Also, each electrode strip EL includes more
A electrode portion ELA1 and multiple shielding portion ELB1, and each electrode portion ELA1 and each shielding portion ELB1 is along the column direction RD of array
Sequentially alternately connect.More specifically, in each electrode strip EL, each electrode portion ELA1 one of counter electrode E can be set respectively
It sets, that is, in Chong Die with one of counter electrode E on each electrode portion ELA1 upright projections direction Z, and each shielding portion ELB1
Respectively with one of connecting line segment CS positioned at the first conductive layer C1 in be overlapped on the Z of upright projection direction.In this present embodiment,
Each electrode portion ELA1 is respectively used to generate capacitive coupling with corresponding electrode E and forms a touch control unit, to detect touch control object
Position.Each shielding portion ELB1 is produced with corresponding electrode E to each electrode portion ELA1 for covering the signal of connecting line segment CS
The influence of raw coupled capacitor.Furthermore, it is understood that each electrode portion ELA1 may include one first stripes SP1, same electrode is connected
Two adjacent shielding portion ELB1 in EL.Also, width of each shielding portion ELB1 on the line direction CD of array is more than each first
Width of the stripes SP1 on the line direction CD of array, so that each shielding portion ELB1 can effectively be covered positioned at the first conductive layer
The connecting line segment CS of C1.Also, each shielding portion ELB1 can cover at least part of the extension EP of corresponding connecting line segment CS.
For example, each shielding portion ELB1 is respectively greater than in the width on the line direction CD of array or equal to each electrode E in the row of array
10 of width on the CD of direction.More preferably, each shielding portion ELB1 is respectively greater than in the width on the line direction CD of array
Or equal to each electrode E in 50 percent of the width on the line direction CD of array.In addition, positioned at two adjacent rows electrode E it
Between two adjacent shielding portion ELB1 it is separated from one another, and there is a clearance G between the two, and in the case, be located at two
Two adjacent shielding portion ELB1 between adjacent row electrodes E can be as close as effectively to shield corresponding connecting line segment CS.
For example, for yellow light processing procedure, about 0.05 millimeter of the least limit that two adjacent shielding portion ELB1 are separated, therefore be located at
The clearance G between two adjacent shielding portion ELB1 between two adjacent row electrodes E can greater than or equal to about 0.05 millimeter, but not with
This is limited.For screen painting processing procedure, about 0.3 millimeter of the least limit that two adjacent shielding portion ELB1 are separated, therefore position
The clearance G between two adjacent shielding portion ELB1 between two adjacent row electrodes E can greater than or equal to about 0.3 millimeter, but not with
This is limited.It follows that with the condition of different processing procedures or the evolution of processing procedure, the clearance G between two adjacent shielding portion ELB1
It can reduce or different.It is worth noting that not having between two adjacent shielding portion ELB1 between the electrode E of two adjacent rows
There is floating electrode, the induction of electrode strip EL is had an impact through floating electrode to avoid connecting line segment CS.The of the present embodiment
One electrode tandem ES1 and second electrode tandem ES2 is respectively driving electrodes, to transmit drive signal, and each electrode strip group
ELM1 is induction electrode, to generate inductive signal according to corresponding drive signal, but not limited to this.In another embodiment,
First electrode tandem ES1 and second electrode tandem ES2 also may respectively be induction electrode, and each electrode strip group ELM1 is driving electricity
Pole.
Furthermore, each electrode portion ELA1 of the present embodiment can include separately respectively multiple branch BP, from each first
The both sides of shape portion SP1 protrude, and so that the first stripes SP1 of each electrode portion ELA1 and branch BP is constituted gate-shaped electrode, whereby may be used
Each touch control unit is promoted in the capacitance change for having touch control object touching with being touched without touch control object.Each electrode portion of the utility model
Shape be not limited to this or other shapes.
In this present embodiment, N is equal to 2, and each electrode strip group ELM1 may include two strip electrode EL, that is, first electrode item
EL1 and second electrode EL2, and first electrode EL1 in each electrode strip group ELM1 and second electrode EL2 are electrical each other
Connection (junction is illustrated in Fig. 3, after being illustrated in).Due to the electricity of the first electrode EL1 of same electrode strip group ELM1 and second
Pole EL2 is adjacent to each other, therefore can be Chong Die with second electrode E2 with the first electrode E1 of two adjacent columns respectively, that is, can distinguish
With first electrode tandem ES1 and second electrode tandem ES2 capacitive couplings, electrode strip group ELM1 same whereby can be with the of same a line
One electrode tandem ES1 and second electrode tandem ES2 form two different touch control units.Each electrode E of the present embodiment is in array
Line direction CD on width can be more than each electrode strip EL the first stripes SP1 in the width on the line direction CD of array, because
This electrode E can be shielded effectively and be obstructed influence of the display to electrode strip EL, promote touching for mutual-capacitive touch panel 100 whereby
Control accuracy.Furthermore, it is understood that since each first electrode EL1 is across the first electrode E1 of a corresponding row, each first electricity
Each shielding portion ELB1 of pole EL1 is Chong Die with from the one second connecting line segment CS2 passed through between first electrode E1 respectively.Equally
Ground, since each second electrode EL2 is across the second electrode E2 of a corresponding row, each shielding portion of each second electrode EL2
ELB1 is Chong Die with from the one first connecting line segment CS1 passed through between second electrode E2 respectively.In this present embodiment, each shielding portion
ELB1 is close to the width of electrode E, therefore the shielding portion ELB1 of one of first electrode EL1 in the width on the CD of direction
One of, and second electrode be overlapped with two adjacent first connecting lines section CS1 for being connected to one of first electrode E1
One of shielding portion ELB1 of one of EL2 and be connected to one of second electrode E2 two adjacent second connect
Wiring section CS2 is overlapped.Specifically, each shielding portion ELB1 of each first electrode EL1 can be covered connects adjacent to corresponding second
The first connecting portion CP1 of two the first connecting line segment CS1 of wiring section CS2, and each shielding portion ELB1 of each second electrode EL2
The first connecting portion CP1 that two the second connecting line segment CS2 adjacent to corresponding first connecting line segment CS1 can be covered, whereby may be used
Promote the effect of masking connecting line segment CS.In another embodiment, each shielding portion ELB1 may extend in the both sides on the RD of direction
Positioned at the surface of the electrode E of its both sides, make each shielding portion ELB1 that can partly overlap with the electrode E of both sides.
In addition, the second conductive layer C2 alternatives include separately multiple floating electrode FE, wherein floating electrode FE divides each other
Every, and separated with electrode strip EL, therefore floating electrode FE is not electrically connected electrode strip EL, and also it is not electrically connected to other signals
End so that floating electrode FE is in floating.In this present embodiment, floating electrode FE can be respectively arranged at two adjacent branches
Between portion BP or it is set between branch BP and shielding portion ELB1.Through the setting of floating electrode FE, can fill up as much as possible
Space between electrode strip EL makes the pattern of electrode strip EL visually be not easy to be picked out by human eye, and then reduces mutual capacitance type and touch
Control the visibility of panel 100.It is worth noting that, floating electrode FE need to be separately positioned on the surface of every a line electrode E, so that
Floating electrode FE will not be overlapped and generate capacitive coupling on the Z of upright projection direction with connecting line segment CS.Specifically, with same
For row electrode E, each electrode E has two opposite sides on column direction RD, and the floating electrode FE of corresponding this journey electrode E needs to be arranged
Between this two opposite sides.In an alternate embodiment, as shown in Figure 5 B, the second conductive layer C2 ' may not include floating electrode, and
Only include electrode strip group ELM1.
Illustrate the connection type of electrode strip EL between each electrode strip group ELM1 below.In this present embodiment, mutual capacitance type touch surface
Plate 100 can include separately a plurality of first conducting wire CL1 and a plurality of second conducting wire CL2, be set on the substrate 102 in the 102b of peripheral region.
Each first electrode tandem ES1 and each second electrode tandem ES2, and each second conducting wire is electrically connected in each first conducting wire CL1
The electrode strip EL of each electrode strip group ELM1 is electrically connected in CL2.Specifically, the first conducting wire CL1 and the second conducting wire CL2 can
Such as including silver or transparent conductive material.First conducting wire CL1 can extend to Touch Zone 102a and corresponding from peripheral region 102b
One connecting line segment CS1 or the second connecting line segment CS2 connections.Each first conducting wire CL1 and electrode E can be by identical first conductive layer C1
It is formed or is formed by different conductive layers.Each second conducting wire CL2 may include two second connecting portion CP2, be separately connected same electricity
The electrode strip EL of pole item group ELM1, and each second conducting wire CL2 can be formed by identical second conductive layer C2 with electrode strip EL or
It is formed by different conductive layers.In addition, mutual-capacitive touch panel 100 may include multiple first connection pad P1 and multiple second connection pads again
P2 is set on the substrate 102 in the peripheral region 102b of Touch Zone the same sides 102a.Each first connection pad P1 is electrically connected respectively
Each second conducting wire CL2 is electrically connected in first conducting wire CL1, each second connection pad P2.
In another alternate embodiment shown in figure 15, when N is equal to 3, every a line of array is in addition to including first electrode string
ES1 and second electrode tandem ES2 is arranged, third electrode tandem ES3 is further included.In the first conductive layer C1 ' of this alternate embodiment
In, electrode E includes at least M first electrode E1, M second electrode E2 and M third electrode E3.Positioned at the first electricity of 3M-1 row
Pole E1 is electrically connected to each other into first electrode tandem, and the second electrode E2 positioned at 3M row is electrically connected to each other into second electrode tandem
ES2, and the third electrode tandem ES3 being electrically connected to each other positioned at the third electrode E3 of 3M-2 row, wherein first electrode tandem
ES1, second electrode tandem ES2 and third electrode tandem ES3 are insulated from each other.Also, in addition to the first connecting line segment CS1 and second connects
Except wiring section CS2, connecting line segment CS may also include a plurality of third connecting line segment CS3, be connected to positioned at a line and 3M-
Between two adjacent third electrode E3 of 2 row.Correspondingly, each electrode strip group ELM1 ' may include three electricity being electrically connected to each other
Pole EL, respectively first electrode EL1, second electrode EL2 and third electrode strip EL3, and the electricity of corresponding same row electrode E
Pole EL can generate capacitive coupling with each electrode E and form touch control unit.Each electricity is electrically connected in each second conducting wire CL2
First electrode EL1, the second electrode EL2 and third electrode strip EL3 of pole item group ELM1 '.In identical touch control unit quantity
Under, second conducting wire CL2 quantity of this alternate embodiment for electrode electrically connected EL can be less than in first embodiment for being electrically connected
The second conducting wire CL2 quantity of receiving electrode EL, thus more can effectively reduce mutual-capacitive touch panel 100 ' for be arranged second
The peripheral region 102b width of conducting wire CL2.And so on, the N of the utility model is alternatively 4 or more positive integer, to reduce periphery
Sector width.
It hereafter will be explained in detail the effect of shielding portion shielding connecting line segment.Fig. 6 to Fig. 8 is please referred to, Fig. 6 is painted connecting line segment
When no shielding portion is shielded to the power line schematic diagram of corresponding electrode strip, Fig. 7, which is painted on connecting line segment, is provided with dummy electricity
To the power line schematic diagram of corresponding electrode strip when pole, Fig. 8 is painted the utility model connecting line segment by corresponding shielding portion screen
The power line schematic diagram covered.As shown in fig. 6, when connecting line segment CS does not have shielding portion to be set to right over it, it is sent to connection
Voltage signal in line segment CS will produce the upper surface that power line extends to electrode strip EL.Thus, when touch control object is set to
When on electrode strip EL, the power line on electrode strip EL can obviously be touched the influence of object and generate variation so that mutual tolerance
Formula touch panel can detect that the coupled capacitor of connecting line segment CS and electrode strip EL changes, and cause detection inaccurate.Such as Fig. 7 institutes
Show, when connecting line segment CS is when being arranged above dummy electrode DE, since dummy electrode DE is non-electrode electrically connected EL,
Also other signal ends are not electrically connected to, and are the electrode in suspension joint (floating) state, therefore are transmitted in connecting line segment CS
When having voltage signal, dummy electrode DE can be in equipotential state due to capacitive coupling with connecting line segment CS, that is to say, that dummy
Electrode DE also has voltage identical with connecting line segment CS, thus, which dummy electrode DE will produce power line and extend to electrode
The upper surface of EL.Therefore, mutual-capacitive touch panel can also detect that connecting line segment CS penetrates dummy electrode DE and electrode strip
The coupled capacitor of EL changes, and causes detection inaccurate.As shown in figure 8, since the shielding portion ELB1 of the utility model is (for electrode strip
A part of EL) shielding connecting line segment CS, therefore power line caused by the voltage signal of connecting line segment CS can only extend to electricity
The lower surface of pole EL, the upper surface without extending to electrode strip EL, therefore when touch control object is set on electrode strip EL, electricity
The line of force can't be affected, that is to say, that the voltage signal of connecting line segment CS will not impact the detection of touch control object, borrow
This can promote the precision of touch-control.
Hereafter by the further difference relatively with shielding portion and the mutual-capacitive touch panel without shielding portion.It please refers to
Fig. 9 and Figure 10, Fig. 9 are painted the vertical view of the mutual-capacitive touch panel without shielding portion of comparative examples and corresponding seat
Cursor position schematic diagram, the mutual-capacitive touch panel detection touch control object that Figure 10 is painted comparative examples move linearly along Y-axis
When the X-axis position offset time corresponding with Y-axis position schematic diagram.As shown in Figures 9 and 10, when touch control object TO along Y-axis into
When row linear movement (as shown in the arrow A of Fig. 9), the movement measured from electrode strip EL is not straight line, such as the measurement of Fig. 9
Shown in point P.Since the area of touch control object TO is more than the area of unitary electrode, the X-axis position detected can be distinguished with electrode strip EL
The induction amount of counter electrode DEL, DEM, DER calculates, that is to say, that the induction that electrode strip EL is measured from electrode DEL
Amount is calculated according to corresponding X-axis coordinate 2, the induction that similarly electrode strip EL is measured from electrode DEM and electrode DER
Amount is calculated according to corresponding X-axis coordinate 3 with 4 respectively.Wherein, it is located at the electrode strip EL8 of Y-axis coordinate 8 and is located at Y-axis seat
The electrode strip EL9 of mark 9 is to be located at same electrode strip group ELM, and be electrically connected to each other.With touch control object TO X axle beds be designated as 3 with
For position between 4 is moved linearly along Y direction, when the maximum Gauss induction amount that electrode strip EL7 is detected
When, then the Y-axis position of the central point of touch control object TO is judged still 7, and work as the maximum Gauss induction amount that electrode strip EL8 is detected
When, then judge the Y-axis position of the central point of touch control object TO 8.Therefore, straight for 7 from Y-axis coordinate in the central point of touch control object TO
Line is moved to during Y-axis coordinate is 8, electric when the central point of touch control object TO is located approximately at the middle that Y-axis coordinate is 7 and 8
The induction amount that pole EL7 is measured from electrode DER is 109, but the induction amount that electrode strip EL8 is measured from electrode DER is
131, thus the Gauss offset of calculated X-axis positional distance X-axis coordinate 3 be respectively 0.2744 and 0.4578, that is,
Touch control object TO is said when close to the position of same point, corresponding X-axis detected by the mutual-capacitive touch panel 10 of comparative examples
There is no small difference in position so that it is inaccurate in turn result in detection for the suddenly change of Gauss offset.Similarly, Gauss offset
Suddenly change can also be present in the central point as touch control object TO from Y-axis coordinate be 9 mistakes for being moved straightly to that Y-axis coordinate is 10
Cheng Zhong.That is, when touch control object TO is across different electrode strip group ELM, can be influenced to cause X-axis by connecting line segment CS
The left and right fluctuation of position.
Please refer to Fig.1 1 and table 1, Figure 11 be painted when touch control object along array do not go together setting-out when the utility model
The signal for the setting-out track that the mutual-capacitive touch panel of one embodiment and the mutual-capacitive touch panel of comparative examples measure
Figure.As shown in Figure 11 and table 1, the curve of first embodiment and comparative examples from left to right corresponding 1st row to the 5th row respectively
Electrode is about with the spacing (i.e. the pitch (pitch) of electrode in the X-axis direction) between the central point of two adjacent electrode of same row
For 4.5 millimeters, about 0.4969 milli of X-axis site error average out to detected by the mutual-capacitive touch panel 10 of comparative examples
Rice, and X-axis site error accounts for the percentage average out to about 11.04% of the pitch of electrode in the X-axis direction, and the utility model the
About 0.19712 millimeter of X-axis site error average out to detected by the mutual-capacitive touch panel 100 of one embodiment, and X-axis position
Set the percentage average out to about 4.379% that error accounts for the pitch of electrode in the X-axis direction.It follows that implementing compared to control
For example, since there is the mutual-capacitive touch panel 100 of the present embodiment shielding portion ELB1, detected track can relatively accord with
The straight line that touch control object is moved is closed, that is, the error of X-axis position can be effectively reduced, and then promotes the detection essence of X-axis position
Accuracy.
Table 1
The double-deck mutual-capacitive touch panel of the utility model is not limited with above-described embodiment.It is real for the ease of comparing first
It applies the deviation between example and other embodiment and simplifies explanation, marked using identical symbol in other embodiment below
Identical element, and illustrated mainly for the deviation between first embodiment and other embodiment, and no longer counterweight is multiple
Part is repeated.
2 are please referred to Fig.1, the schematic top plan view of the mutual-capacitive touch panel of the utility model second embodiment is painted.Such as
Shown in Figure 12, compared to first embodiment, each electrode portion ELA2 for the mutual-capacitive touch panel 200 that the present embodiment is provided is
It is latticed.Other than the first stripes CP1, each electrode strip EL of each electrode strip group ELM2 includes separately a plurality of second strip respectively
Portion SP2, multiple third interconnecting piece CP3 and multiple branch BP, and in one of first stripes CP1, the second stripes SP2
One of, the two in third interconnecting piece CP3 constitute a grid electrodes with four in branch BP.For example, each electricity
Pole portion ELA2 other than including the first stripes SP1, further include a second stripes SP2, two third interconnecting piece CP3 with
Four branch BP.The parallel first stripes SP1 of second stripes SP2, and connect two adjacent shielding portion ELB1.Each third connection
Portion CP3 is connected between the first stripes SP1 and the second stripes SP2, and the branch BP of a part is respectively from first
Stripes SP1 extends relative to the side of third interconnecting piece CP3, and the branch BP of another part is from the second stripes SP2 phases
The side of third interconnecting piece CP3 is extended so that each electrode portion ELA2 can be latticed.In another embodiment, second
Conductive layer may not include floating electrode.
3 are please referred to Fig.1, the schematic top plan view of the mutual-capacitive touch panel of the utility model 3rd embodiment is painted.Such as
Shown in Figure 13, compared to first embodiment, in the electrode strip group ELM3 for the mutual-capacitive touch panel 300 that the present embodiment is provided
One of in, two adjacent shielding portions between the electrode E of two adjacent rows are connected to each other, to constitute single masking
Portion ELB3.In other words, the same electrode strip group ELM3 of the present embodiment may include multiple shielding portion ELB3, and each shielding portion ELB3
It connect with the electrode portion ELA1 of the electrode portion ELA1 of first electrode EL1 and second electrode EL2, whereby the present embodiment
Shielding portion ELB3 can cover more manifold connecting line segment CS.Second conductive layer of the present embodiment may not include floating electrode.In
In another embodiment, the second conductive layer may include floating electrode.
4 are please referred to Fig.1, the schematic top plan view of the mutual-capacitive touch panel of the utility model fourth embodiment is painted.Such as
Shown in Figure 14, compared to first embodiment, each electrode E4 for the mutual-capacitive touch panel 400 that the present embodiment is provided may include
One slit SL, with one of corresponding first stripes SP1 overlapping.Specifically, each slit SL can be with each electrode portion ELA1
It is least partially overlapped.In this present embodiment, each slit SL also can have palisade, with the branch BP with each electrode portion ELA1 with
And the first stripes SP1 overlapping.Compared to the coupling electricity between each electrode E and corresponding electrode portion ELA1 of first embodiment
Hold, since each electrode E4 of the present embodiment has the slit SL, each electrode E4 and electrode portion Chong Die with electrode portion ELA1
Coupled capacitor between ELA1 can reduce.For example, when each first electrode tandem ES1 and each second electrode tandem ES2 can divide
Not Wei induction electrode, and when each electrode strip group ELM1 is respectively driving electrodes, the power line meeting that is generated from each electrode strip group ELM1
Have on the more electrode E4 for extending partially into and not covered by each electrode strip group ELM1 so that had when touch control object touches more
Power line variation, therefore the capacitance change detected by electrode E4 can be promoted through slit SL.Also, in this situation
Under, the second conductive layer C2 does not simultaneously have floating electrode, to avoid each first electrode tandem ES1 and each second electrode tandem is covered
The electrode E4 inductions of ES2.
In conclusion in the mutual-capacitive touch panel of the utility model, it is provided in each electrode strip and connecting line segment weight
Folded shielding portion, and the width of shielding portion can be more than the width of the first stripes, therefore shielding portion can cover connecting line segment and be produced
Raw power line, whereby the detection precision of mutual-capacitive touch panel can effectively be promoted.
Although the utility model is disclosed as above with preferred embodiment, so it is not limited to the utility model, any
Those skilled in the art, without departing from the spirit and scope of the utility model, when can make a little modification and it is perfect, therefore this
The protection domain of utility model, which is worked as, is subject to what claims were defined.
Claims (16)
1. a kind of mutual-capacitive touch panel has a Touch Zone and a peripheral region, it is characterised in that the mutual-capacitive touch panel
Including：
One first conductive layer, including：
Multiple electrodes are arranged in an array, and in the Touch Zone, wherein in every a line of the array, are located at (N × M)-
The electrode of 1 row is electrically connected to each other into a first electrode tandem, and is electrically connected to each other into one second positioned at the electrode of N × M row
Electrode tandem, N are the positive integer more than or equal to 2, and M is the positive integer more than or equal to 1；And
A plurality of connecting line segment, including a plurality of first connecting line segment and a plurality of second connecting line segment, and respectively first connecting line segment point
Two adjacent electrodes in one of corresponding first electrode tandem are not connected, and respectively second connecting line segment is separately connected corresponding
Two adjacent electrodes in one of second electrode tandem；
One second conductive layer is set to above first conductive layer, which includes M electrode strips insulated from each other
Group, along the line direction sequential of the array in the Touch Zone, respectively the electrode strip group includes N strip electrode items, respectively the electrode
Item extends respectively along the column direction of the array and is overlapped respectively on a upright projection direction with the electrode of a corresponding row, wherein
Respectively the electrode strip includes multiple first stripes and multiple shielding portions, respectively first stripes with the respectively shielding portion along the battle array
The column directions of row is alternately connected, respectively the setting of one of first stripes difference counter electrode, respectively the shielding portion respectively with it is right
One of multiple connecting line segment answered is overlapped on the upright projection direction, and respectively line direction of the shielding portion in the array
On width be more than each width of first stripes on the line direction of the array；And
One insulating layer is set between first conductive layer and second conductive layer.
2. mutual-capacitive touch panel as described in claim 1, it is characterised in that include separately a plurality of conducting wire, be set to the peripheral region
It is interior, and respectively the electrode strip of the respectively electrode strip group is electrically connected in the conducting wire.
3. mutual-capacitive touch panel as described in claim 1, which is characterized in that multiple electrode include M first electrode with
And M second electrode, the M first electrode are located at the row of (N × M) -1, which is located at N × M row, respectively the electrode strip
The electrode strip of group includes a first electrode item and a second electrode item, and multiple shielding portions of one of multiple first electrode items
One of it is Chong Die with one of multiple second connecting line segments.
4. mutual-capacitive touch panel as claimed in claim 3, which is characterized in that the person's in multiple first electrode item should
The person in multiple shielding portions and two adjacent multiple first connecting line segments for being connected to one of multiple first electrode
Overlapping.
5. mutual-capacitive touch panel as claimed in claim 3, which is characterized in that one of multiple second electrode item is somebody's turn to do
One of multiple shielding portions are Chong Die with one of multiple first connecting line segment.
6. mutual-capacitive touch panel as claimed in claim 5, which is characterized in that the person's in multiple second electrode item should
The person in multiple shielding portions and two adjacent multiple second connecting line segments for being connected to one of multiple second electrode
Overlapping.
7. mutual-capacitive touch panel as described in claim 1, which is characterized in that respectively the shielding portion is on the line direction of the array
Width be respectively greater than or equal to the respectively electrode in 10 of the width on the line direction of the array.
8. mutual-capacitive touch panel as described in claim 1, which is characterized in that respectively the shielding portion is on the line direction of the array
Width be respectively greater than or equal to the respectively electrode in 50 percent of the width on the line direction of the array.
9. mutual-capacitive touch panel as described in claim 1, which is characterized in that two be located between the electrode of two adjacent rows
Do not have floating electrode between adjacent shielding portion.
10. mutual-capacitive touch panel as described in claim 1, which is characterized in that in one of the M electrode strip group,
Two adjacent shielding portions between the electrode of two adjacent rows are separated from one another.
11. mutual-capacitive touch panel as described in claim 1, which is characterized in that in one of the M electrode strip group,
Two adjacent shielding portions between the electrode of two adjacent rows are connected to each other.
12. mutual-capacitive touch panel as described in claim 1, which is characterized in that respectively the electrode strip includes separately multiple points respectively
Branch extends from the both sides of respectively first stripes, and respectively first stripes and a part for multiple branch is made to constitute
One gate-shaped electrode.
13. mutual-capacitive touch panel as described in claim 1, which is characterized in that respectively the electrode strip includes separately a plurality of the respectively
Two stripes, multiple interconnecting pieces and multiple branches, and in one of multiple first stripes, multiple second stripes
One of, the two in multiple interconnecting piece constitute a grid electrodes with four in multiple branch.
14. mutual-capacitive touch panel as described in claim 1, which is characterized in that respectively the electrode includes a slit, and corresponding
One of multiple first stripes are overlapped.
15. mutual-capacitive touch panel as described in claim 1, which is characterized in that respectively the first electrode tandem with respectively this second
Electrode tandem is respectively a driving electrodes, and respectively the electrode strip group is an induction electrode.
16. mutual-capacitive touch panel as described in claim 1, which is characterized in that respectively the first electrode tandem with respectively this second
Electrode tandem is respectively an induction electrode, and respectively the electrode strip group is a driving electrodes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820008849.7U CN207833482U (en) | 2018-01-03 | 2018-01-03 | Mutual-capacitive touch panel with duallayered electrode structure |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820008849.7U CN207833482U (en) | 2018-01-03 | 2018-01-03 | Mutual-capacitive touch panel with duallayered electrode structure |
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| Publication Number | Publication Date |
|---|---|
| CN207833482U true CN207833482U (en) | 2018-09-07 |
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| CN201820008849.7U Withdrawn - After Issue CN207833482U (en) | 2018-01-03 | 2018-01-03 | Mutual-capacitive touch panel with duallayered electrode structure |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109992168A (en) * | 2018-01-03 | 2019-07-09 | 奕力科技股份有限公司 | Mutual-capacitive touch panel with duallayered electrode structure |
-
2018
- 2018-01-03 CN CN201820008849.7U patent/CN207833482U/en not_active Withdrawn - After Issue
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109992168A (en) * | 2018-01-03 | 2019-07-09 | 奕力科技股份有限公司 | Mutual-capacitive touch panel with duallayered electrode structure |
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