CN203241971U - Conducting layer structure and self capacitance touch screen using same - Google Patents
Conducting layer structure and self capacitance touch screen using same Download PDFInfo
- Publication number
- CN203241971U CN203241971U CN 201320166094 CN201320166094U CN203241971U CN 203241971 U CN203241971 U CN 203241971U CN 201320166094 CN201320166094 CN 201320166094 CN 201320166094 U CN201320166094 U CN 201320166094U CN 203241971 U CN203241971 U CN 203241971U
- Authority
- CN
- China
- Prior art keywords
- channel electrode
- electrode
- accessory
- touch area
- coordinate direction
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
Images
Abstract
The utility model discloses a conducting layer structure and a self capacitance touch screen using the conducting layer structure. The conducting layer structure is characterized in that an auxiliary channel electrode is additionally arranged on the border position of an original channel electrode coverage area, the auxiliary channel electrode is parallel to the long side of a channel electrode, thus, when a finger touches the border position of the channel electrode coverage area, the touch area of the auxiliary channel electrode is used for compensating the touch area of the channel electrode, accordingly the loss of the touch area of the channel electrode is reduced, a coordinate shifting phenomenon at the border of the self capacitance touch screen using the conducting layer structure is mended, and moreover a drifting phenomenon of the self capacitance touch screen is mended.
Description
Technical field
The application relates to the touch screen technology field, particularly relates to conductive coating structure and uses the self-capacitance touch screen of this structure.
Background technology
During self-capacitance touch screen at glass or thin-film material surface with ITO(Indium Tin Oxide, tin-doped indium oxide) transparent conductive material is made laterally or the longitudinal electrode array, laterally described or electrod-array and the peripheral wiring that is connected with electrod-array have consisted of conductive layer longitudinally, described conductive layer respectively with the capacitor C p shown in the ground pie graph 1, capacitor C p is usually said self-capacitance, namely ITO electrode 1 electric capacity over the ground.
As shown in Figure 1, cover one deck cover plate 2 on the conductive layer 1, when hand 3 touches self-capacitance touch screen, because human body can equivalence be the earth, form a capacitor C f between finger 3 and the conductive layer 1, capacitor C f and capacitor C p form parallel circuit (as shown in Figure 2), and (Cf+Cp＞Cp), it is exactly that the variation that detects the electric capacity of each sensing unit judges whether to produce touch to touch-screen that the touch of touch-screen detects principle so that the electric capacity of touch-screen increases.
Traditional individual layer self-capacitance touch screen, can realize single-point+gesture, and 2 touch operation, only need one deck conductive layer, cost is low, use more extensive, typical structure such as Fig. 3 and two kinds of triangular structures shown in Figure 5, mainly comprise similar leg-of-mutton channel electrode 100, and the peripheral wiring 200 that is connected with channel electrode 100.
Figure 3 shows that the structural representation of the conductive coating structure of typical perpendicular triangle pattern, the vertical cross arrangement of subtriangular channel electrode, wherein, channel electrode A1～A7 all is that broadside one side connects peripheral wiring, and channel electrode B1～B7 all is that narrow limit one side connects peripheral wiring.
Need to prove, calculating the coordinate time of finger touch to the self-capacitance touch screen, actual is to utilize the appearance value of the capacitor C f that forms between finger and the conductive layer to calculate, because the appearance value of Cf is directly proportional to the touch area on the conductive layer with finger touch, therefore for the ease of understanding, utilize finger touch to replace the appearance value of Cf to calculate the touch coordinate of finger to the touch area on the ITO electrode.
When finger touch during to the position 1 shown in the figure, finger part touches in the channel electrode areal coverage, part touches outside the channel electrode overlay area, for the ease of understanding, the i.e. channel electrode shown in the dotted line among the figure of virtual two channel electrode A0 and B0(outside the channel electrode overlay area), like this, the coordinate figure computing formula of Y coordinate direction is:
Y=(S2+S4+S6)/(S1+S2+S3+S4+S5+S6) (formula 1)
S1～S6 is the touch area of the channel electrode of correspondence in the formula 1.
But in fact channel electrode A0 and B0 do not exist, so touch area S1 and S2 that these two channel electrodes are corresponding do not exist, then the coordinate figure computing formula of Y coordinate direction is actual is:
Y=(S4+S6)/(S3+S4+S5+S6) (formula 2)
Because the loss of S1 and S2 causes the coordinate figure of Y coordinate direction to reduce, and edge whipping phenomenon namely occurs, as shown in Figure 4, the coordinate figure of Y coordinate direction when Y2＜Y1, Y1 are normal, Y2 be Y coordinate direction coordinate figure when edge whipping phenomenon occurring.
Figure 5 shows that the structural representation of the conductive coating structure of typical horizontal triangular form pattern, subtriangular channel electrode 100 cross arrangements, wherein, channel electrode F1-F4 and channel electrode E1-E4 lateral cross are arranged, and the broadside of channel electrode F1-F4 is positioned at the Circuit apart from FPC(Flexible Printed, flexible circuit board) 300 sides far away, narrow limit is positioned at a side nearer apart from FPC300; The broadside of channel electrode E1-E4 is positioned at a side nearer apart from FPC300, and narrow limit is positioned at a side far away apart from FPC300.
When finger touch during to the marginal position (position 1 among Fig. 5) of the areal coverage of channel electrode, finger part touches in the channel electrode areal coverage, part touches outside the channel electrode overlay area, for the ease of understanding, the i.e. channel electrode shown in the dotted line among the figure of virtual two channel electrode E0 and F0(outside the channel electrode overlay area), like this, the coordinate figure computing formula of X coordinate direction is:
X=(W2+W4+W6)/(W1+W2+W3+W4+W5+W6) (formula 3)
In the formula 3, W1-W6 is respectively the touch area of the channel electrode of correspondence.
But in fact, channel electrode E0 and F0 do not exist, and therefore, touch area W1 and W2 that these two channel electrodes are corresponding do not exist, and then the coordinate figure computing formula of X coordinate direction is actual is:
X=(W4+W6)/(W3+W4+W5+W6) (formula 4)
Owing to touching the loss of area W1 and W2, cause the coordinate figure of X coordinate direction to reduce, edge whipping phenomenon namely appears, and specifically as shown in Figure 6, the coordinate figure of X coordinate direction when X2＜X1, X1 are normal, X2 be X coordinate direction coordinate figure when edge whipping phenomenon occurring.
In the prior art, the touch area of the peripheral wiring that employing channel electrode F1 connects removes to compensate the touch area (because the peripheral wiring that channel electrode F1 connects can only compensate the touch area of the channel electrode identical with the channel electrode direction) of tunnel F0, suppose that W is the touch area of peripheral wiring, at this moment, the computing formula of the coordinate figure of X coordinate direction is:
X=(W4+W6)/(W+W3+W4+W5+W6) (formula 5)
The numerical value of the X coordinate direction coordinate figure that employing formula 5 calculates is less, and the whipping phenomenon of appearance is more serious.
To sum up, all there is serious edge whipping phenomenon in the self-capacitance touch screen of existing triangle pattern.
The utility model content
For solving the problems of the technologies described above, the embodiment of the present application provides a kind of self-capacitance touch screen, and to solve the edge whipping phenomenon with the leg-of-mutton channel electrode areal coverage of existing self-capacitance touch screen, technical scheme is as follows:
The application provides a kind of conductive coating structure, is applied to self-capacitance touch screen, comprising: channel electrode, accessory channel electrode, and the many peripheral wirings that should be connected with described channel electrode and accessory channel electrode pair;
Described accessory channel electrode is arranged on one or two marginal position outside the areal coverage of described channel electrode, and the long limit of described accessory channel electrode is parallel with the long limit of described channel electrode.
Preferably, the quantity of described accessory channel electrode that is positioned at footprint edges one side of described channel electrode is a plurality of, and a plurality of described accessory channel electrode be arranged in parallel.
Preferably, described accessory channel electrode is the oblong channels electrode.
Preferably, described channel electrode is leg-of-mutton channel electrode or trapezoidal channel electrode, and described channel electrode is in the cross arrangement of Y coordinate direction.
Preferably, described channel electrode is leg-of-mutton channel electrode or trapezoidal channel electrode, and described channel electrode is in the cross arrangement of X coordinate direction.
Preferably, an end of described many peripheral wirings connects respectively broadside one side of described channel electrode, and the other end all connects flexible circuit board; Distance described flexible circuit board nearest described channel electrode on the Y coordinate direction, its broadside one side on the X coordinate direction with the distance of described flexible circuit board, less than narrow limit one side distance with described flexible circuit board on the X coordinate direction of described channel electrode;
Described accessory channel electrode is arranged on the areal coverage of described channel electrode, and the marginal position of a side that is not covered by described peripheral wiring.
Preferably, an end of described many peripheral wirings connects respectively broadside one side of described channel electrode, and the other end all connects flexible circuit board; Distance described flexible circuit board nearest described channel electrode on the Y coordinate direction, its broadside one side on the X coordinate direction with the distance of described flexible circuit board, less than narrow limit one side distance with described flexible circuit board on the X coordinate direction of described channel electrode;
Described accessory channel electrode is arranged on the marginal position of the areal coverage both sides of described channel electrode, and the long limit of described accessory channel electrode is parallel with the long limit of described channel electrode.
The application also provides a kind of self-capacitance touch screen to comprise at least above-mentioned conductive coating structure, and covers the cover plate on the described conductive coating structure.
The self-capacitance touch screen that the application provides compared with prior art, marginal position at the channel electrode areal coverage, set up the accessory channel electrode, when finger touch arrives the marginal position of channel electrode areal coverage, utilization touches the touch area on the accessory channel electrode, the touch area of the channel electrode of recovering damage, be equivalent to reduce the touch area of the channel electrode of loss, thereby reduced the coordinate offset of self-capacitance touch screen marginal position, effectively improved self-capacitance touch screen edge whipping phenomenon.
Description of drawings
In order to be illustrated more clearly in the embodiment of the present application or technical scheme of the prior art, the below will do to introduce simply to the accompanying drawing of required use in embodiment or the description of the Prior Art, apparently, the accompanying drawing that the following describes only is some embodiment that put down in writing among the application, for those of ordinary skills, under the prerequisite of not paying creative work, can also obtain according to these accompanying drawings other accompanying drawing.
Fig. 1 is the principle schematic of self-capacitance touch screen;
Fig. 2 is the equivalent circuit diagram when the finger touch self-capacitance touch screen;
Fig. 3 is the structural representation of existing a kind of conductive coating structure;
Fig. 4 is the coordinate offset schematic diagram of the Y coordinate direction of conductive coating structure shown in Figure 3;
Fig. 5 is the structural representation of existing another kind of conductive coating structure;
Fig. 6 is the coordinate offset schematic diagram of the X coordinate direction of conductive coating structure shown in Figure 5;
The structural representation of a kind of conductive coating structure that Fig. 7 the embodiment of the present application provides;
The structural representation of the another kind of conductive coating structure that Fig. 8 the embodiment of the present application provides;
The structural representation of the another kind of conductive coating structure that Fig. 9 the embodiment of the present application provides;
The structural representation of the another kind of conductive coating structure that Figure 10 provides for the embodiment of the present application;
The structural representation of the another kind of conductive coating structure that Figure 11 provides for the embodiment of the present application.
Embodiment
The embodiment of the present application provides a kind of conductive coating structure, marginal position at original channel electrode areal coverage, set up the accessory channel electrode parallel with the long side direction of described channel electrode, like this, when finger touch arrives the marginal position of channel electrode areal coverage, utilize the touch area of the touch Area Compensation channel electrode of accessory channel electrode, thereby improve the edge coordinate shift phenomenon of the self-capacitance touch screen of using this conductive coating structure, and then improve the whipping phenomenon of self-capacitance touch screen.
In order to make those skilled in the art person understand better technical scheme among the application, below in conjunction with the accompanying drawing in the embodiment of the present application, technical scheme in the embodiment of the present application is clearly and completely described, obviously, described embodiment only is the application's part embodiment, rather than whole embodiment.Based on the embodiment among the application, those of ordinary skills are not making the every other embodiment that obtains under the creative work prerequisite, all should belong to the scope of the application's protection.
The embodiment that the application provides is all take similar leg-of-mutton channel electrode as example describes, it will be appreciated by persons skilled in the art that described channel electrode can be have broadside and a narrow limit at Width arbitrary shape all can, be not limited to triangle.
See also Fig. 7, show the structural representation of a kind of conductive coating structure of the embodiment of the present application, described conductive layer comprises similar leg-of-mutton channel electrode A1-A6 and B1-B6 at least, accessory channel electrode C and D, the peripheral wiring that is connected with described channel electrode and accessory channel electrode, wherein, channel electrode A1-A6 and channel electrode B1-B6 are in the cross arrangement of Y coordinate direction.
Concrete, the quantity of the electrode of accessory channel described in the present embodiment is 2, namely two marginal positions in the channel electrode overlay area all arrange an accessory channel electrode, as shown in Figure 7, accessory channel electrode C is arranged on the outside of channel electrode A1, and accessory channel electrode D is arranged on the outside of channel electrode B6.
When finger touch arrives the marginal position (position 1 among the figure) of channel electrode areal coverage, finger part touches the channel electrode areal coverage, part touches accessory channel electrode C areal coverage, the area of the touch Area Compensation finger touch that utilizes accessory channel electrode C outside the channel electrode areal coverage, at this moment, the computing formula of Y coordinate direction coordinate figure is:
Y=(S+S4+S6)/(S+S3+S4+S5+S6) (formula 6)
In the formula 6, S is the touch area of accessory channel electrode C, and S3 is the touch area of channel electrode A1, and S4 is the touch area of channel electrode B1, and S5 is the touch area of channel electrode A2, and S6 is the touch area of channel electrode B2.
Utilize the area of finger touch outside to the touch Area Compensation finger touch of accessory channel electrode C to the channel electrode areal coverage, thereby effectively improved the shift phenomenon of Y coordinate figure, namely improved the edge whipping phenomenon of self-capacitance touch screen.
In like manner, during regional outside finger part touches channel electrode B6 areal coverage, utilize the touch area of the channel electrode that finger touch loses to the touch Area Compensation on the accessory channel electrode D, to realize effectively improving self-capacitance touch screen edge whipping phenomenon.
The width that it will be appreciated by persons skilled in the art that accessory channel electrode C and D can need to be set according to design.The quantity of channel electrode C and D all can be one or more, can determine according to concrete condition the quantity of channel electrode C and D, and the application does not limit this.
Preferably, referring to Fig. 8, show the structural representation of the another kind of conductive layer of the embodiment of the present application, different from embodiment shown in Figure 7 is, the quantity of accessory channel electrode is different, and the quantity of accessory channel electrode is 4 in the present embodiment.
Conductive coating structure shown in Figure 8 is perpendicular triangular structure, at least comprise channel electrode A1-A6 and B1-B6, accessory channel electrode C1, C2, D1 and D2, the peripheral wiring that is connected with channel electrode and accessory channel electrode, wherein, channel electrode A1-A6 and channel electrode B1-B6 are in the cross arrangement of Y coordinate direction.
Accessory channel electrode C1 and C2 are successively set on the outside of channel electrode A1, and be arranged in parallel with the long limit of channel electrode; Accessory channel electrode D1 and D2 are successively set on the outside of channel electrode B6, and two accessory channel electrode D1 are all parallel with the long limit of channel electrode with D2.
When finger touch arrives the marginal position (position 1 among the figure) of channel electrode areal coverage, finger part touches the channel electrode areal coverage, part touches the areal coverage of accessory channel electrode C1 and C2, utilize the touch Area Compensation finger touch of accessory channel electrode C1 and C2 to the area of tunnel electrode A 0 and B0, at this moment, the computing formula of Y coordinate direction coordinate figure is:
Y=(S2+S4+S6)/(S1+S2+S3+S4+S5+S6) (formula 7)
In the formula 7, S1 is the touch area of accessory channel electrode C1, and S2 is the touch area of accessory channel electrode C2, S3 is the touch area of channel electrode A1, S4 is the touch area of channel electrode B1, and S5 is the touch area of channel electrode A2, and S6 is the touch area of channel electrode B2.
Utilize finger touch to the touch area of the touch Area Compensation tunnel electrode A 0 of accessory channel electrode C1, utilize finger touch to the touch area of the touch Area Compensation tunnel electrode B 0 of accessory channel electrode C2, reduced the loss of the touch area of channel electrode, thereby effectively improved the shift phenomenon of the coordinate figure of Y coordinate direction, namely improved the edge whipping phenomenon of self-capacitance touch screen.
In like manner, when finger part touches the channel electrode areal coverage, part touches the areal coverage of accessory channel electrode D1 and D2, the area of the touch Area Compensation finger touch that utilizes accessory channel electrode D1 and D2 outside the channel electrode areal coverage, reduced the loss of the touch area of channel electrode, effectively improve the shift phenomenon of the coordinate figure of Y coordinate direction, namely improved the edge whipping phenomenon of self-capacitance touch screen.
Need to prove, the quantity of the accessory channel electrode in the embodiment of the present application can need to and be set according to design, is not defined as 2 or 4.
Preferably, the shape of the accessory channel electrode among Fig. 7 and the embodiment shown in Figure 8 can be rectangle, thereby is convenient to the processing of conductive layer, and certainly, the shape of accessory channel electrode also can be other shapes, and the application does not limit this.
See also Fig. 9, show the structural representation of the another kind of conductive layer of the embodiment of the present application, different from embodiment shown in Figure 7 is that the channel electrode in the present embodiment is in the cross arrangement of X coordinate direction.
As shown in Figure 9, leg-of-mutton channel electrode E1-E6 and F1-F6 are respectively in the cross arrangement of X coordinate direction, and broadside one side of described channel electrode connects an end of peripheral wiring, and the other end of peripheral wiring all connects FPC.
Marginal position at the channel electrode areal coverage is provided with accessory channel electrode C and D, and wherein, accessory channel electrode C is arranged on the outside of channel electrode F1, and accessory channel electrode D is arranged on the outside of channel electrode E6.And the long limit of the long limit of two accessory channel electrodes and channel electrode be arranged in parallel.
Concrete, when finger touch arrives the marginal position (position 1 among Fig. 9) of channel electrode, utilize the touch area replacement tunnel electrode E0 of accessory channel C and the touch area of F0, at this moment, the coordinate Calculation formula of X coordinate direction is:
X=(W+W4+W6)/(W+W3+W4+W5+W6) (formula 8)
In the formula 8, W is the touch area of accessory channel electrode C, and W3 is the touch area of channel electrode E1, and W4 is the touch area of channel electrode F1, and W5 is the touch area of channel electrode E2, and W6 is the touch area of channel electrode F2.
Utilize finger touch to the touch area of the touch Area Compensation tunnel electrode F0 of accessory channel electrode C, reduced the loss of the touch area of channel electrode, thereby effectively improved the shift phenomenon of the coordinate figure of X coordinate direction, namely improved the edge whipping phenomenon of self-capacitance touch screen.
When finger part touches the channel electrode areal coverage, when part touched accessory channel electrode D, the principle of improving self-capacitance touch screen edge whipping phenomenon was similar to the above process, and the coordinate Calculation formula of X coordinate direction is similar to formula 8, repeats no more herein.
Need to prove, the quantity of accessory channel electrode C and D all can be 1 or a plurality of, and the quantity of concrete accessory channel electrode can be set according to the designing requirement of self-capacitance touch screen, and the application does not limit this.
Preferably, the shape of described accessory channel electrode can be rectangle, so that the formation of conductive layer and processing, certainly, the shape of accessory channel motor also can be other shapes, and the application does not limit this.
See also Figure 10, show the structural representation of the another kind of conductive layer of the embodiment of the present application, on the basis of embodiment shown in Figure 9, changed the spread geometry of leg-of-mutton channel electrode, and reduced the quantity of accessory channel electrode, the accessory channel electrode in the present embodiment is arranged on the zone that is not covered by peripheral wiring.
Specifically as shown in figure 10, channel electrode E1-E6 and F1-F6 are in the cross arrangement of X coordinate direction, and wherein broadside one side of channel electrode connects an end of corresponding peripheral wiring, and the other end of all peripheral wirings all connects FPC.Accessory channel electrode C is arranged on the outside of channel electrode F6.
The Y coordinate direction apart from FPC300 nearest be channel electrode E1, and nearer at the broadside one lateral extent FPC of X coordinate direction E1, the narrow limit one lateral extent FPC of E1 is far away.
At this moment, when the position 1 of finger touch in Figure 10, utilize the touch area of the virtual channel electrode F0 of the touch Area Compensation of the peripheral wiring that channel electrode F1 connects, the coordinate figure computing formula of X coordinate direction is:
X=(S+W4+W6)/(S+W3+W4+W5+W6) (formula 9)
In the formula 9, S is the touch area of the peripheral wiring of channel electrode F1 connection, and W3 is the touch area of channel electrode E2, and W4 is the touch area of channel electrode F2, and W5 is the touch area of channel electrode E3, and W6 is the touch area of channel electrode F3.
Because the touch area that the peripheral wiring of channel electrode F1 can only partial-compensation loses with F1 channel electrode in the same way, in the present embodiment, utilize the touch area of the virtual channel electrode F0 of the touch Area Compensation of the peripheral wiring that channel electrode F1 connects, compare with the self-capacitance touch screen of existing horizontal triangular structure, reduced the side-play amount of X coordinate direction coordinate figure, thereby effectively improved edge whipping phenomenon, this kind mode has only changed the orientation of described channel electrode, do not increase new channel electrode, therefore process is simple, and cost is relatively low.
When the position 2 of finger touch in Figure 10, namely part touches the channel electrode areal coverage, part touches the areal coverage of virtual channel electrode, virtual channel electrode reality does not exist, so the touch area of part does not exist, the touch area of the channel electrode (E7 and F7 among Figure 10) of the touch Area Compensation loss of the accessory channel electrode that utilization is newly-increased, at this moment, the coordinate figure computing formula of X coordinate direction is:
X=(W2+W4+S)/(W1+W2+W3+W4+S) (formula 10)
In the formula 10, W1 is the touch area of channel electrode E5, and W2 is the touch area of channel electrode F5, and W3 is the touch area of channel electrode E6, and W4 is the touch area of channel electrode F6, and S is the touch area of accessory channel electrode C.
The conductive coating structure that the present embodiment provides, set up the accessory channel electrode in channel electrode footprint edges and the side that do not covered by peripheral wiring, utilize the touch area of the leg-of-mutton channel electrode that the touch area portions of accessory channel electrode recovers damage, reduce the side-play amount of the coordinate figure of X coordinate direction, thereby effectively improved the edge whipping phenomenon of horizontal triangular structure.
Need to prove, the quantity of the accessory channel electrode C in the present embodiment, shape all can be adjusted according to the specific design situation of self-capacitance touch screen, and the application does not limit this.
See also Figure 11, show the structural representation of the another kind of conductive layer of the embodiment of the present application, different from embodiment shown in Figure 10 is also to be provided with the accessory channel electrode at the peripheral wiring areal coverage.
Specifically as shown in figure 11, channel electrode E1-E6 and F1-F6 are in the cross arrangement of X coordinate direction, and wherein broadside one side of channel electrode connects an end of corresponding peripheral wiring, and the other end of all peripheral wirings all connects FPC.Channel electrode E1 is nearest apart from FPC300 in Y-direction, and nearer at the broadside one lateral extent FPC of X coordinate direction E1, and the narrow limit one lateral extent FPC of E1 is far away.
Accessory channel electrode C is arranged on the areal coverage (marginal position of channel electrode E1 among the figure) of peripheral wiring, and accessory channel electrode D is arranged on not in the zone that is covered by peripheral wiring (marginal position of channel electrode F6 among the figure).
When the position 1 of finger touch in the figure, utilize the touch area of the peripheral wiring of channel electrode F1 connection, and the touch area of the virtual channel electrode E0 of the touch Area Compensation of accessory channel electrode C and F0 loss, then the computing formula of the coordinate figure of X coordinate direction is:
X=(S+W+W4+W6)/(S+W+W3+W4+W5+W6) (formula 11)
In the formula 11, S is the touch area of the peripheral wiring of channel electrode F1 connection, and W is the touch area of accessory channel electrode C, W3 is the touch area of channel electrode E2, W4 is the touch area of channel electrode F2, and W5 is the touch area of channel electrode E3, and W6 is the touch area of channel electrode F3.
In the present embodiment, the peripheral wiring that utilizes channel electrode F1 to connect, and the virtual channel electrode E0 of the touch Area Compensation of accessory channel electrode and the touch area of F0, compare with the self-capacitance touch screen of existing horizontal triangular structure, reduce the side-play amount of X coordinate direction coordinate figure, thereby effectively improved edge whipping phenomenon.
When among the finger touch figure during position 2, utilize the touch area of virtual channel electrode (E7 and the F7) loss of the touch Area Compensation of accessory channel electrode, at this moment, the coordinate figure computing formula of X coordinate direction is:
X=(W2+W4+W)/(W1+W2+W3+W4+W) (formula 10)
In the formula 10, W1 is the touch area of channel electrode E5, and W2 is the touch area of channel electrode F5, and W3 is the touch area of channel electrode E6, and W4 is the touch area of channel electrode F6, and W is the touch area of accessory channel electrode D.
The conductive coating structure that the present embodiment provides, in channel electrode footprint edges position, and accessory channel electrode D is set up in the zone that is not covered by peripheral wiring, utilize the touch area of the touch area portions compensation tunnel electrode (E7 and F7) of accessory channel electrode D, reduce the side-play amount of the coordinate figure of X coordinate direction, thereby effectively improved the edge whipping phenomenon of horizontal triangular structure.
Corresponding to above-mentioned conductive coating structure, the application also provides a kind of self-capacitance touch screen, comprises at least any one conductive coating structure among above-mentioned all embodiment, and covers the cover plate on the described conductive layer.
The above only is the application's embodiment; should be pointed out that for those skilled in the art, under the prerequisite that does not break away from the application's principle; can also make some improvements and modifications, these improvements and modifications also should be considered as the application's protection domain.
Claims (8)
1. a conductive coating structure is applied to self-capacitance touch screen, it is characterized in that, comprising: channel electrode, accessory channel electrode, and the many peripheral wirings that should be connected with described channel electrode and accessory channel electrode pair;
Described accessory channel electrode is arranged on one or two marginal position outside the areal coverage of described channel electrode, and the long limit of described accessory channel electrode is parallel with the long limit of described channel electrode.
2. conductive coating structure according to claim 1 is characterized in that, the quantity of described accessory channel electrode that is positioned at footprint edges one side of described channel electrode is a plurality of, and a plurality of described accessory channel electrode be arranged in parallel.
3. conductive coating structure according to claim 1 is characterized in that, described accessory channel electrode is the oblong channels electrode.
4. each described conductive coating structure is characterized in that according to claim 1-3, and described channel electrode is leg-of-mutton channel electrode or trapezoidal channel electrode, and described channel electrode is in the cross arrangement of Y coordinate direction.
5. each described conductive coating structure is characterized in that according to claim 1-3, and described channel electrode is leg-of-mutton channel electrode or trapezoidal channel electrode, and described channel electrode is in the cross arrangement of X coordinate direction.
6. conductive coating structure according to claim 5 is characterized in that:
One end of described many peripheral wirings connects respectively broadside one side of described channel electrode, and the other end all connects flexible circuit board; Distance described flexible circuit board nearest described channel electrode on the Y coordinate direction, its broadside one side on the X coordinate direction with the distance of described flexible circuit board, less than narrow limit one side distance with described flexible circuit board on the X coordinate direction of described channel electrode;
Described accessory channel electrode is arranged on the areal coverage of described channel electrode, and the marginal position of a side that is not covered by described peripheral wiring.
7. conductive coating structure according to claim 5 is characterized in that:
One end of described many peripheral wirings connects respectively broadside one side of described channel electrode, and the other end all connects flexible circuit board; Distance described flexible circuit board nearest described channel electrode on the Y coordinate direction, its broadside one side on the X coordinate direction with the distance of described flexible circuit board, less than narrow limit one side distance with described flexible circuit board on the X coordinate direction of described channel electrode;
Described accessory channel electrode is arranged on the marginal position of the areal coverage both sides of described channel electrode, and the long limit of described accessory channel electrode is parallel with the long limit of described channel electrode.
8. a self-capacitance touch screen is characterized in that, comprises at least each described conductive coating structure of claim 1-7, and covers the cover plate on the described conductive coating structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320166094 CN203241971U (en) | 2013-04-03 | 2013-04-03 | Conducting layer structure and self capacitance touch screen using same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320166094 CN203241971U (en) | 2013-04-03 | 2013-04-03 | Conducting layer structure and self capacitance touch screen using same |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203241971U true CN203241971U (en) | 2013-10-16 |
Family
ID=49319245
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320166094 Expired - Lifetime CN203241971U (en) | 2013-04-03 | 2013-04-03 | Conducting layer structure and self capacitance touch screen using same |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203241971U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104615318A (en) * | 2015-01-23 | 2015-05-13 | 深圳市华星光电技术有限公司 | Touch screen and terminal provided with same |
| WO2015180315A1 (en) * | 2014-05-30 | 2015-12-03 | 京东方科技集团股份有限公司 | Capacitive touch structure, embedded touchscreen, display device and scanning method therefor |
| CN105843448A (en) * | 2016-03-21 | 2016-08-10 | 京东方科技集团股份有限公司 | Touch display substrate and touch display apparatus |
| CN109508138A (en) * | 2018-12-11 | 2019-03-22 | 深圳市德名利电子有限公司 | A kind of corner touch control identification method, device and mobile terminal based on region mirror image |
| CN109634460A (en) * | 2018-12-11 | 2019-04-16 | 深圳市德名利电子有限公司 | A kind of touch control identification method based on region mirror image, device and touch control display apparatus |
-
2013
- 2013-04-03 CN CN 201320166094 patent/CN203241971U/en not_active Expired - Lifetime
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2015180315A1 (en) * | 2014-05-30 | 2015-12-03 | 京东方科技集团股份有限公司 | Capacitive touch structure, embedded touchscreen, display device and scanning method therefor |
| US9933899B2 (en) | 2014-05-30 | 2018-04-03 | Boe Technology Group Co., Ltd. | Capacitive touch structure, in-cell touch panel, display device and scanning method |
| CN104615318A (en) * | 2015-01-23 | 2015-05-13 | 深圳市华星光电技术有限公司 | Touch screen and terminal provided with same |
| WO2016115750A1 (en) * | 2015-01-23 | 2016-07-28 | 深圳市华星光电技术有限公司 | Touch screen and terminal provided with same |
| CN105843448A (en) * | 2016-03-21 | 2016-08-10 | 京东方科技集团股份有限公司 | Touch display substrate and touch display apparatus |
| US10296118B2 (en) | 2016-03-21 | 2019-05-21 | Boe Technology Group Co., Ltd. | Touch display substrate and touch display device |
| CN105843448B (en) * | 2016-03-21 | 2019-10-25 | 京东方科技集团股份有限公司 | A kind of touch display substrate and touch control display apparatus |
| CN109508138A (en) * | 2018-12-11 | 2019-03-22 | 深圳市德名利电子有限公司 | A kind of corner touch control identification method, device and mobile terminal based on region mirror image |
| CN109634460A (en) * | 2018-12-11 | 2019-04-16 | 深圳市德名利电子有限公司 | A kind of touch control identification method based on region mirror image, device and touch control display apparatus |
| CN109508138B (en) * | 2018-12-11 | 2020-08-28 | 深圳市德明利技术股份有限公司 | Corner touch control identification method and device based on area mirror image and mobile terminal |
| CN109634460B (en) * | 2018-12-11 | 2022-03-04 | 深圳市德明利技术股份有限公司 | Touch identification method and device based on area mirror image and touch display device |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US10222919B2 (en) | Capacitive touch screen and single layer wiring electrode array | |
| CN102955639B (en) | A kind of external hanging type touch module and touch control display apparatus | |
| CN203241971U (en) | Conducting layer structure and self capacitance touch screen using same | |
| CN104615323B (en) | Three-dimensional module, three-dimensional display device and drive method of three-dimensional module | |
| CN104750336B (en) | Electrostatic capacitive type touch screen panel | |
| CN202711219U (en) | Improved single-layer indium tin oxide (ITO) mutual capacitance touch screen | |
| CN104951161A (en) | Liquid crystal display with touch function and conducting layer structure thereof | |
| CN104360783B (en) | Self-capacitance touch panel and its conductive coating structure | |
| CN103455227A (en) | Capacitance type touch screen and display device | |
| CN203241970U (en) | Conducting layer structure and self capacitance touch screen using same | |
| CN202976043U (en) | Externally mounted touch-control module and touch-control display device | |
| CN201266369Y (en) | Capacitance touch screen | |
| CN102778972A (en) | Double-layer ITO (indium tin oxide) wiring structure | |
| CN102221950B (en) | Touch screen | |
| TWM403700U (en) | Multi-point touch structure of surface capacitive touch panel | |
| CN102236482A (en) | Capacitive touch structure, manufacturing method thereof and touch equipment | |
| CN205193771U (en) | Touch control display screen | |
| CN103729099A (en) | Touch sensor | |
| KR101064648B1 (en) | Touch panel with scroll transparent electrode and touch window having the same | |
| CN202383648U (en) | Single-glass capacitive touch panel and display screen structure thereof | |
| CN205121523U (en) | Touch -sensitive screen and display device | |
| CN203643991U (en) | Silver wire bridging structure for single-sensing-layer touch screen | |
| CN203444456U (en) | Capacitive touch screen and display device | |
| CN202649988U (en) | Capacitive touch screen with single-layer of line structure | |
| CN104063079A (en) | Electrode bridging structure of touch panel |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20131016 |
|
| CX01 | Expiry of patent term |