CN203588227U - Touch panel and touch electrode structure thereof - Google Patents
Touch panel and touch electrode structure thereof Download PDFInfo
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- CN203588227U CN203588227U CN201320670322.8U CN201320670322U CN203588227U CN 203588227 U CN203588227 U CN 203588227U CN 201320670322 U CN201320670322 U CN 201320670322U CN 203588227 U CN203588227 U CN 203588227U
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Abstract
The utility model provides a touch panel and a touch electrode structure thereof. The touch electrode structure is defined with a plurality of position units, and comprises a plurality of electrodes, wherein the electrodes are electrically insulated from one another; each electrode comprises a plurality of position units and various sub-electrodes; the sub-electrodes are electrically insulated from one another; each sub-electrode comprises a plurality of sub-electrode units; each position unit is corresponding to at least one sub-electrode unit in at least one sub-electrode, and the permutation and combination of the sub-electrode categories of the sub-electrode unit of each position unit are different. According to the utility model, an over-line and an insulating layer aren't needed to be arranged in the touch electrode structure, so that the electrical property of each electrode is independent, and in addition, both the simplification of process steps and improvement of the yield can be realized.
Description
Technical field
The utility model relates to touch technology field, relates in particular to a kind of contact panel and touch electrode structure thereof.
Background technology
In consumption electronic products market now, combination of touch control function has become the trend of portable electric product mainstream development in display.Contact panel (touch panel) has been applied to multiple electronic product, for example Smartphone, mobile phone, panel computer and notebook computer.Because user can directly see through the object showing on screen, operate and assign instruction, so contact panel provides the operation interface of the hommization between user and electronic product.
The neighboring area that contact panel generally comprises a touch area and is centered around touch area surrounding, touch area is for generation of a sensor signal, in this neighboring area, be provided with plural periphery lead-in wire, for this sensor signal is passed to signal processor, carry out computing, can determine by this coordinate of touch position.
With regard to general electrode structural designs, please refer to Fig. 1, it shows the touch electrode structure schematic diagram of a known contact panel 100 in prior art.As shown in Figure 1, on the touch area 102 of contact panel 100, be formed with touch-control electrode pattern 104, touch-control electrode pattern 104 comprises a plurality of transverse electrodes 104a and a plurality of longitudinal electrodes 104b, and each transverse electrode 104a and each longitudinal electrode 104b are formed by connecting by plurality of electrodes unit 104c all respectively.For this design, due to transverse electrode 104a and longitudinal electrode 104b can intersect therefore, on electrode pattern, can use cross-line (jumper) 106 and insulation course 108 completely cut off transverse electrode 104a and longitudinal electrode 104b.
Yet as will be made cross-line and insulation course on contact panel, it must complete making with micro-photographing process more than 5 roads conventionally, its processing procedure is complicated.Moreover as long as one of them cross-line goes wrong, as there is the problems such as cross-line fracture or static discharge, whole piece electrode lapses.So industry still needs the touch-control electrode pattern that contact panel is commonly used to be improved at present, to reducing production process, and promotes yield.
Utility model content
Because above-mentioned known problem, the utility model has proposed a kind of touch electrode structure of novelty hereby, cross-line and insulation course must be set in its structure and can make each electrode electrically independent, and reach the effect of simplifying fabrication steps and promoting yield simultaneously.
According to the utility model one embodiment, it has proposed a kind of touch electrode structure, wherein defines a plurality of position units.This touch electrode structure comprises many strip electrodes and is electrically insulated each other, every strip electrode has been contained a plurality of position units and has been comprised multiple sub-electrode, those sub-electrodes are electrically insulated each other, the sub-electrode unit that every seed electrode comprises a plurality of mutual electric connections, at least one sub-electrode unit in corresponding at least one sub-electrode of each position units wherein, and the permutation and combination of the sub-electrode kind of the sub-electrode unit in each position units is not identical.
Further, those sub-electrodes that every strip electrode and this electrode comprise all extend along a first direction.
Further, this sub-electrode unit in this position units is arranged along a second direction vertical with this first direction.
Further, this touch electrode structure comprises between multiple electrode district, contains a plurality of these electrodes between every kind of this electrode district, and this electrode between this different electrode districts extends toward different directions.
Further, those electrodes are parallel each other.
Further, those sub-electrodes mutually disjoint.
Further, the area of this position units equals the area summation of this sub-electrode unit corresponding to this position units.
Further, the quantity of sub-electrode unit corresponding to each this position units is identical.
Further, all corresponding two these sub-electrode unit of each this position units.
According to another embodiment of the present utility model, it has proposed a kind of contact panel, and this contact panel comprises a substrate, defines a plurality of position units on it; Many strip electrodes are electrically insulated each other and are arranged on this substrate, every strip electrode is contained a plurality of position units and is comprised multiple sub-electrode, every kind of sub-electrode unit that this sub-electrode comprises a plurality of mutual electric connections wherein, at least one sub-electrode unit in corresponding at least one this sub-electrode of each this position units, and the permutation and combination of the sub-electrode kind of this sub-electrode unit in each this position units is not identical.
The contact panel that the utility model provides and touch electrode structure thereof, sub-electrode unit permutation and combination by different sub-electrode axles forms different position of touch unit, in this structure, cross-line and insulation course need not be set, simple in structure, can reach the effect of simplifying fabrication steps and promoting yield.
Accompanying drawing explanation
Fig. 1 shows the vertical view of a contact panel in known techniques;
Fig. 2 shows according to the vertical view of the utility model embodiment mono-contact panel;
Fig. 3 shows according to the vertical view of another embodiment mono-contact panel of the utility model;
Fig. 4 shows according to the vertical view of another embodiment mono-contact panel of the utility model; And
Fig. 5 shows the vertical view according to the utility model embodiment mono-with the contact panel of a plurality of electrode zones.
Symbol description:
100 contact panels
102 touch areas
104 touch-control electrode patterns
104a transverse electrode
104b longitudinal electrode
104c electrode unit
106 cross-lines
108 insulation courses
200 contact panels
201 substrates
203 electrodes
203a, 203b, 203d, 203c, 203d, 203e, 203f sub-electrode
205,205a, 205b, 205c position units
207 sub-electrode unit
209a, between 209b electrode district
D1 first direction
D2 second direction
Embodiment
Below in conjunction with accompanying drawing and embodiment, the utility model is described in further detail.
First please refer to Fig. 2, it shows according to the vertical view of the utility model embodiment mono-contact panel.As shown in Figure 2; contact panel 200 of the present utility model comprises a substrate 201, and it is in order to carry and to protect element disposed thereon, in addition; substrate 201 also can be a cover plate (cover glass), and it can be used as user's touching face with respect to the another side that is provided with electrode.Substrate 201 can be hard material or flexible material transparent insulation material, such as glass, polyimide (PI), polypropylene (PP), polystyrene (PS), acrylonitrile-butadiene-styrene (ABS) (ABS), polyethylene terephthalate (PET), Polyvinylchloride (PVC), polycarbonate (PC), tygon (PE), polymethylmethacrylate (PMMA), polytetrafluoroethylene (PTFE) etc.On substrate 201, define a plurality of position units 205, each position units 205 represents the minimum induction unit that this contact panel can reach, and all position units 205 can arrayed mode form the touch area of contact panel jointly.
Referring again to Fig. 2, on substrate 201, be provided with many electrodes that are electrically insulated each other 203, it extends along a first direction D1, and better being arranged in parallel with each other, and has contained a plurality of position units 205 that define on substrate.Electrode 203 can be used transparent conductive material, as materials such as tin indium oxide (ITO), indium zinc oxide (IZO), carbon nanotube (CNT), Nai meter Yin (Nano Silver), on substrate 201, adopt the modes such as printing, lithography or laser etching to form.Of the present utility model one large feature is, single strip electrode 203 is consisted of several sub-electrodes, and each sub-electrode is electrically insulated each other, four sub-electrode 203a～203d as shown in FIG..Every sub-electrode 203a～203d is electrically connected and forms along first direction D1 by a plurality of sub-electrodes unit 207 again, connected mode can adopt transparent or opaque wire (figure is mark not) to connect, wire can adopt the transparent conductive material identical with sub-electrode unit 207, also can adopt metal to comprise copper, molybdenum, aluminium etc.More specifically, in the utility model, in order to reach the function of judging touch position, as shown in Figure 2, each position units 205 can contain or at least more than one sub-electrode of correspondence unit 207, and more importantly, each position units 205 contains or corresponding sub-electrode unit 207 kinds are that sub-electrode unit 207 in different sub-electrode 203a～203d is arranged in a combination, and the details of this part will be described hereinafter.
With three diverse location unit 205a shown in Fig. 2,205b, 205c is example, position units 205a has been contained three different types of sub-electrode unit 207, these three different types of sub-electrode unit 207 belong to sub-electrode 203a～203c, and arrange along a second direction D2 vertical with first direction D1; Position units 205b has only been contained the sub-electrode unit of single sub-electrode 203c, and position units 205c has been contained the sub-electrode unit of sub-electrode 203a and 203d.The rough area that equals this position units of area summation of the sub-electrode unit 207 in position units 205, therefore the quantity of the sub-electrode unit 207 that each position units 205 contains and area incomplete same.In the utility model, because the combination of the sub-electrode unit in the sub-electrode of each position units 205 correspondences is different, so design can be given each position units 205 uniquenesses, unique identity, also be the combination of the sub-electrode unit in the different sub-electrodes of the unique correspondence of each position units 205, to reach the effect of judging touch position.For example, in implementation, when user uses the position units 205a on finger or the touching of other touch object or close substrate, the electric signal at this place (voltage or electric current that for example mutual capacitance causes) can change.Because position units 205a has been contained the sub-electrode unit of sub-electrode 203a～203c, so can causing the sensing signal of the scanning output of sub-electrode 203a～203c to produce, the change of electric signal changes, and on the other hand, the change that the sensing signal of exporting from sub-electrode 203d can not be affected or occur produces change with the sensing signal of sub-electrode 203a～203c and compares very little.So system can be changed from the sensing signal of which sub-electrode output or the size of this variable is judged touch position.For example, when system synchronization input while driving signal to sub-electrode 203a～203d, scan respectively again sub-electrode 203a～203d, if detect wherein, from the sensing signal of sub-electrode 203a～203c output, change has occurred, this represent that touch position is the position units 205a that occurs in simultaneously and just have the sub-electrode unit of sub-electrode 203a～203c.So, decision mechanism with above-mentioned the utility model, as long as the permutation and combination of corresponding sub-electrode unit 207 kinds that each position units 205 contains is different, system just can judge touching is to occur in which position units 205 from the change of the sensing signal of each sub-electrode.
With the electrode of wall scroll shown in Fig. 2 203 by four seed electrode examples that 203a～203d is consisted of, and in each position units 205, can contain at the most under the prerequisite of 4 sub-electrode units 207, the permutation and combination of its sub-electrode unit 207 (comprising single sub-electrode cell cases) can have
kind.So to design, every strip electrode 203 can arrange in succession 15 position units 205 on first direction D1.As the event electrodes series because of utility model demand need to contain more position units 205, the sub-electrode kind that increases composition electrode 203 can increase the quantity of permutation and combination.In addition, the design of the utility model utilizes each position units of the corresponding touching of mode of permutation and combination of the sub-electrode unit of a plurality of sub-electrodes, drawing separately with general each known touch position unit the mode that lead-in wire is connected to controller compares, can reduce the number of leads being connected with controller, the area of the neighboring area that thereby can reduce goes between takies, is conducive to the design of the narrow frame of contact panel.
Please refer to now Fig. 3, it shows according to the vertical view of another embodiment mono-contact panel of the utility model.Touch-control electrode pattern difference shown in Fig. 2 and Fig. 3 is, the electrode 203 in Fig. 3 consists of jointly five seed electrode 203a～203e, but not four kinds, and its position units 205 only contains two sub-electrode units 207 at the most.With such set-up mode, its sub-electrode unit 207 has been met together
group permutation and combination, its quantity is identical with Fig. 2.Be understandable that, the permutation and combination of the sub-electrode unit in this enforcement in five seed electrode 203a～203e also can adopt and the mode shown in Fig. 2, owing to having increased the quantity of a sub-electrode, the permutation and combination method of the sub-electrode unit in sub-electrode 203a～203e also can correspondingly increase, so position units 205 quantity that single strip electrode 203 comprises also can correspondingly increase, the design of the contact panel of applicable different size.
Next please refer to Fig. 4, it shows according to the vertical view of another embodiment mono-contact panel of the utility model.Touch-control electrode pattern difference shown in Fig. 4 and Fig. 3 is, electrode 203 in Fig. 4 consists of jointly six seed electrode 203a～203f, but not five kinds, and the quantity of the sub-electrode unit 207 of each position units 205 correspondences is identical, at this, take all corresponding two the sub-electrode units of each position units 205 is example explanation.So to arrange, the permutation and combination of its sub-electrode unit is total
kind, its quantity is identical with the electrode pattern of Fig. 2 and Fig. 3.
With three diverse location unit 205a shown in Fig. 4,205b, 205c is example explanation, position units 205a, 205b, 205c has been contained respectively two different types of sub-electrode unit 207, wherein, position units 205a has been contained the sub-electrode unit 207 that belongs to sub-electrode 203c and 203f; Position units 205b has been contained the sub-electrode unit 207 that belongs to sub-electrode 203e and 203f, and position units 205c has been contained the sub-electrode unit that belongs to sub-electrode 203a and 203b.In the utility model, because the combination of the sub-electrode unit in the sub-electrode of each position units 205 correspondences is different, so design can be given each position units 205 uniquenesses, unique identity, also be the combination of the sub-electrode unit in a kind of different sub-electrodes of the unique correspondence of each position units 205, to reach the effect of judging touch position.For example, when carrying out touch-control sensing, to each strip electrode 203 driven sweep respectively, the ordinate of different touch points can change and obtain according to the sensing signal that is positioned at the electrode 203 of different rows position, the sub-electrode unit of different types of sub-electrode that the horizontal ordinate of touch points (corresponding to the horizontal ordinate of unit, each position 205) can be contained according to position units 205 is determined, diverse location unit 205a for example, 205b, determining of 205 horizontal ordinates can be with reference to following mode, every two sub-electrodes combine respectively driven sweep, driven element electrode 203a for example, scan respectively sub-electrode 203b, 203c, 203d, 203e, 203f, driven element electrode 203b, scan respectively 203a, 203c, 203d, 203e, 203f, the rest may be inferred.If touch position is at position units 205a, because the sub-electrode unit 207 that position units 205a is contained belongs to electrode 203c and 203f, therefore only at driven element electrode 203c, the sensing signal that scanning sub-electrode 203f obtains can change, and other array sweeping mode driven element electrode 203c for example, the sensing signal that scanning 203a, 203b, 203d, 203e, 203f obtain all can not change; If touch position is at position units 205b, because the sub-electrode unit 207 that position units 205b is contained belongs to electrode 203e and 203f, therefore only at driven element electrode 203e, the sensing signal that scanning sub-electrode 203f obtains can change, and other array sweeping mode driven element electrode 203e for example, the sensing signal that scanning 203a, 203b, 203c, 203d, 203f obtain all can not change; If touch position is at position units 205c, because the sub-electrode unit 207 that position units 205c is contained belongs to electrode 203a and 203b, therefore only at driven element electrode 203a, the sensing signal that scanning sub-electrode 203b obtains can change, and other array sweeping mode driven element electrode 203a for example, the sensing signal that scanning 203c, 203d, 203e, 203f obtain all can not change; So can distinguish the horizontal ordinate of different touch position.Aforementioned is only a kind of scanning sensing mode wherein, and the utility model is not as limit.Compared to embodiment illustrated in fig. 2, in the present embodiment, corresponding sub-electrode unit 207 negligible amounts that diverse location unit 205 is contained and equal, the signal that can reduce between different sub-electrodes disturbs, and improves contact panel degree of accuracy.
From the embodiment explanation of above-mentioned Fig. 2 to Fig. 4, can recognize, in the utility model, corresponding position units 205 quantity that single-row electrode 203 is contained can decide by forming the sub-electrode number of electrode 203 and sub-electrode unit 207 numbers that 205 of single position units can contain.The quantity that increases the sub-electrode number forming and can increase position units the sub-electrode unit of containing, but sub-electrode unit 207 numbers that single position units 205 contains are more, the area of sub-electrode unit 207 certainly will will dwindle, and so will reduce the sensitivity of touch-control.Therefore for the utility model, sub-electrode unit 207 numbers that the position units quantity of the required setting of visual reality and the required touch-control sensitivity reaching decide every strip electrode 203 will use several seed electrodes and each position units 205 to contain.
Touch electrode structure provided by the utility model and contact panel advantage are, because each electrode 203 and each sub-electrode mutually disjoint, therefore in circuit design not must as with cross-line, connect the electrode unit of same electrode as the practice, only use the conductive layer of individual layer just can graphically complete whole touch electrode structure.Such circuit design structure is simple, must fabrication steps less, and reliability is good, without problems such as the cross-line fracture that usually can occur and static discharges.
On the other hand, please refer to Fig. 5, it shows the vertical view according to the utility model one embodiment mono-with the contact panel of multiple electrode zone.In implementation, for the panel designs in response to large-size, on substrate 201, can define the electrode that different bearing of trends are set between a plurality of electrode districts.For example, as shown in Figure 5, be arranged on the electrode in 209a between electrode district and extend toward first direction D1, be arranged on the electrode in 209b between electrode district and toward the second direction D2 vertical with first direction D1, extend.Such design can effectively reduce the position units number that every strip electrode must be contained, the complexity of avoiding using the sub-electrode of too many kind and then increasing circuit design.Must notice that the electrode bearing of trend in the utility model is not limited to the level shown in figure and vertical two kinds of directions, it is also likely oblique angle setting with substrate periphery.
The foregoing is only preferred embodiment of the present utility model; not in order to limit the utility model; all within spirit of the present utility model and principle, any modification of making, be equal to replacement, improvement etc., within all should being included in the scope of the utility model protection.
Claims (14)
1. a touch electrode structure, it defines a plurality of position units, it is characterized in that, and this touch electrode structure comprises:
Many strip electrodes are electrically insulated each other, wherein every this electrode is contained a plurality of these position units and comprises multiple sub-electrode, those sub-electrodes are electrically insulated each other, every kind of sub-electrode unit that this sub-electrode comprises a plurality of mutual electric connections, at least one sub-electrode unit in corresponding at least one this sub-electrode of each this position units, and the permutation and combination of the sub-electrode kind of this sub-electrode unit in each this position units is not identical.
2. touch electrode structure according to claim 1, is characterized in that, those sub-electrodes that every strip electrode and this electrode comprise all extend along a first direction.
3. touch electrode structure according to claim 2, is characterized in that, this sub-electrode unit in this position units is arranged along a second direction vertical with this first direction.
4. touch electrode structure according to claim 1, is characterized in that, this touch electrode structure comprises between multiple electrode district, contains a plurality of these electrodes between every kind of this electrode district, and this electrode between this different electrode districts extends toward different directions.
5. touch electrode structure according to claim 1, is characterized in that, those electrodes are parallel each other.
6. touch electrode structure according to claim 1, is characterized in that, those sub-electrodes mutually disjoint.
7. touch electrode structure according to claim 1, is characterized in that, the area of this position units equals the area summation of this sub-electrode unit corresponding to this position units.
8. touch electrode structure according to claim 1, is characterized in that, the quantity of the sub-electrode unit that each this position units is corresponding is identical.
9. touch electrode structure according to claim 1, is characterized in that, all corresponding two these sub-electrode unit of each this position units.
10. a contact panel, is characterized in that, comprises:
One substrate, defines a plurality of position units on it;
Many strip electrodes, be electrically insulated each other and be arranged on this substrate, wherein every this electrode is contained a plurality of these position units and comprises multiple sub-electrode, those sub-electrodes are electrically insulated each other, and every kind of sub-electrode unit that this sub-electrode comprises a plurality of mutual electric connections, at least one sub-electrode unit in corresponding at least one this sub-electrode of each this position units, and the permutation and combination of the sub-electrode kind of this sub-electrode unit in each this position units is not identical.
11. contact panels according to claim 10, is characterized in that, those sub-electrodes that every strip electrode and this electrode comprise all extend along a first direction.
12. contact panels according to claim 11, is characterized in that, this sub-electrode unit in this position units is arranged along a second direction vertical with this first direction.
13. contact panels according to claim 10, is characterized in that, define between multiple electrode district on this substrate, contain a plurality of these electrodes between every kind of this electrode district, and this electrode between various this electrode district extends toward different directions.
14. contact panels according to claim 10, is characterized in that, the area of this position units equals the area summation of this sub-electrode unit corresponding to this position units.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320670322.8U CN203588227U (en) | 2013-10-28 | 2013-10-28 | Touch panel and touch electrode structure thereof |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201320670322.8U CN203588227U (en) | 2013-10-28 | 2013-10-28 | Touch panel and touch electrode structure thereof |
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| CN203588227U true CN203588227U (en) | 2014-05-07 |
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| CN201320670322.8U Expired - Lifetime CN203588227U (en) | 2013-10-28 | 2013-10-28 | Touch panel and touch electrode structure thereof |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104571666A (en) * | 2013-10-28 | 2015-04-29 | 宸鸿科技(厦门)有限公司 | Touch panel and touch electrode structure thereof |
| CN105446512A (en) * | 2014-08-08 | 2016-03-30 | 宸鸿科技(厦门)有限公司 | Touch electrode structure and touch panel applying same |
-
2013
- 2013-10-28 CN CN201320670322.8U patent/CN203588227U/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104571666A (en) * | 2013-10-28 | 2015-04-29 | 宸鸿科技(厦门)有限公司 | Touch panel and touch electrode structure thereof |
| CN104571666B (en) * | 2013-10-28 | 2017-12-01 | 宸鸿科技(厦门)有限公司 | Contact panel and its touch electrode structure |
| CN105446512A (en) * | 2014-08-08 | 2016-03-30 | 宸鸿科技(厦门)有限公司 | Touch electrode structure and touch panel applying same |
| CN105446512B (en) * | 2014-08-08 | 2018-10-26 | 宸鸿科技(厦门)有限公司 | Touch electrode structure and apply its touch panel |
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