CN103970355A - Touch panel and touch device - Google Patents
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- CN103970355A CN103970355A CN201410182953.4A CN201410182953A CN103970355A CN 103970355 A CN103970355 A CN 103970355A CN 201410182953 A CN201410182953 A CN 201410182953A CN 103970355 A CN103970355 A CN 103970355A
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Abstract
The invention discloses a touch panel and a touch device. The touch panel comprises a touch control sensing layer comprising a plurality of touch control sensing units which are distributed in the first direction, wherein each touch control sensing unit sequentially comprises a first electrode set, a second electrode set and a third electrode set; the first electrode set comprises a plurality of first electrode units which are distributed in the second direction, each first electrode unit comprises at least two first electrodes, and first electrodes of each first electrode unit are connected with different leads; the second electrode set comprises a plurality of second electrodes which are distributed in the second direction, and the second electrodes are connected with different leads; the third electrode set comprises a plurality of third electrode units which are distributed in the second direction, each third electrode unit comprises at least two third electrodes, the third electrodes of each third electrode unit are connected with different leads, and the first direction and the second direction are crossed. The touch panel and the touch device reduce the number of the leads, lower production cost and increase the production yield.
Description
Technical field
The present invention relates to touch technology field, relate in particular to a kind of touch panel and touching device.
Background technology
Touching device is current to become more and more popular, and touching device comprises touch panel, and in actual use, there are the following problems to find touch panel: touch panel lead-in wire is too many, and then cause the FPC size of binding too large, increased Material Cost and production difficulty.Client has trivialization at present in addition, high integration trend, and existing FPC size is difficult to meet client demand.
Summary of the invention
In view of this, the embodiment of the present invention provides a kind of touch panel and touching device.
A kind of touch panel that the embodiment of the present invention provides, comprises touch-control sensing layer, and described touch-control sensing layer comprises multiple touch-control sensing unit of arranging along first direction, wherein:
Described in each, touch-control sensing unit comprises the first electrode group, the second electrode group and third electrode group in a first direction successively;
Described the first electrode group comprises multiple the first electrode units of arranging along second direction, and each the first electrode unit comprises at least two the first electrodes of arranging along second direction, and in each the first electrode unit, each described the first electrode all connects different lead-in wires;
Described the second electrode group comprises multiple the second electrodes of arranging along second direction, and each described the second electrode is connected respectively to different lead-in wires;
Described third electrode group comprises multiple third electrode unit of arranging along second direction, and each third electrode unit comprises at least two third electrodes of arranging along second direction, and in each third electrode unit, each described third electrode all connects different lead-in wires;
Wherein, described first direction intersects with described second direction.
Accordingly, the embodiment of the present invention also provides a kind of touching device, comprises touch panel as above.
The embodiment of the present invention at least has one of following beneficial effect:
The touch panel that the embodiment of the present invention provides, comprise touch-control sensing layer, described touch-control sensing layer comprises multiple touch-control sensing unit of arranging along first direction, each touch-control sensing unit comprises the first electrode group in a first direction successively, the second electrode group and third electrode group, so, in the situation that panel size is identical, can effectively reduce the columns of touch-control sensing unit, therefore, the touch panel that the embodiment of the present invention provides can reduce touch panel number of leads, reduce FPC size, meet client trivialization, the demand of high integration, reduce production costs simultaneously, improve and produce yield.
Brief description of the drawings
Fig. 1 is a kind of externally embedded type capacitance touch display panel plan structure schematic diagram of prior art;
A kind of touch panel plan structure schematic diagram that Fig. 2 provides for the embodiment of the present invention;
Fig. 3 is the enlarged diagram of the touch-control sensing unit in Fig. 2;
Fig. 4 is another enlarged diagram of the touch-control sensing unit in Fig. 2;
A kind of touch panel cross-sectional view that Fig. 5 provides for the embodiment of the present invention.
Embodiment
In real work, research staff finds, as shown in Figure 1, touch-control sensing layer 10 in Fig. 1 is arranged on color membrane substrates 18, touch-control sensing layer 10 comprises multiple touch-control sensing unit 11 that are arranged in parallel in the horizontal direction, each touch-control sensing unit 11 in the vertical direction comprises multiple drive electrodes and an induction electrode 12 successively, in Fig. 1, only show four drive electrodes 13, 14, 15 and 16, wherein, each drive electrode is all connected to flexible PCB (Flexible Printed Circuit by a drive electrode lead-in wire, FPC) on 17, induction electrode 12 is connected on FPC17 by an induction electrode lead-in wire.On-cell capacitance touch screen is individual layer multiple spot pattern, and for single-layer touch screen (Touch Panel, TP), laterally drive electrode is cut off into sectional electrode block by vertical induction electrode, therefore on screen, the lead-in wire of each same node point cannot link together, by using pin to connect to the lead-in wire mode of pin, so just there is hundreds of root lead-in wire will guide to FPC upper, so on-cell capacitance touch screen exists the too many problem of lead-in wire at present.
Research staff further studies discovery, by being set, described touch-control sensing layer comprises multiple touch-control sensing unit of arranging along first direction, wherein: each touch-control sensing unit comprises the first electrode group in a first direction successively, the second electrode group and third electrode group, comprise successively in a first direction the design of the first electrode group and the second electrode group with respect to touch-control sensing unit, in the situation that panel size is identical, can effectively reduce the columns of touch-control sensing unit, in order to reduce touch panel number of leads, reduce FPC size, and then reduce production costs, improve and produce yield.Specifically describe as follows:
As shown in Figure 2, the specific embodiment of the invention provides a kind of touch panel, and this panel 26 comprises touch-control sensing layer 20, and touch-control sensing layer 20 comprises multiple touch-control sensing unit 21 of arranging along first direction, wherein:
Each touch-control sensing unit 21 comprises the first electrode group 22, the second electrode group 23 and third electrode group 24 in a first direction successively, and each touch-control sensing unit 21 is arranged, extended along second direction along first direction;
As shown in Figure 3, the first electrode group 22 comprises multiple the first electrode units 30 of arranging along second direction, each the first electrode unit 30 comprises at least two the first electrodes of arranging along second direction, and in each the first electrode unit 30, each the first electrode all connects different lead-in wires;
The second electrode group 23 comprises multiple the second electrodes 31 of arranging along second direction, and each the second electrode 31 is connected respectively to different lead-in wires;
Third electrode group 24 comprises multiple third electrode unit 32 of arranging along second direction, and each third electrode unit 32 comprises at least two third electrodes of arranging along second direction, and in each third electrode unit 32, each third electrode all connects different lead-in wires;
Wherein, first direction intersects mutually with second direction, conventionally, and first direction and second direction square crossing, but in other embodiments, first direction can also intersect but out of plumb with second direction, and the embodiment of the present invention is not done any restriction to this.
Below taking capacitance touch display panel as example, introduce in detail the touch panel that the specific embodiment of the invention provides, it should be noted that, the capacitance touch display panel that the present embodiment is introduced is only for giving an example, and it is non-limiting, in real work, touch panel includes but not limited to it is capacitance touch display panel or electromagnetic touch display panel or electric capacity electromagnetism one display panel etc., and the embodiment of the present invention is not done any restriction to this.
As shown in Figure 2, the capacitance touch display panel that the specific embodiment of the invention provides, comprise array base palte and/or color membrane substrates (not shown), for the capacitance touch display panel of on-cell, touch-control sensing layer 20 is arranged at color membrane substrates outside or is arranged at array base palte outside; For the capacitance touch display panel of in-cell, touch-control sensing layer 20 is arranged at described color membrane substrates inner side or is arranged at array base palte inner side.This touch-control sensing layer is applied in display panel, can reduces the number of leads of touch display panel, reduce FPC size, meet client trivialization, the demand of high integration.Reduce production costs simultaneously, improve and produce yield.The embodiment of the present invention includes but not limited to outer hanging panel, on-cell screen and in-cell screen etc.In the specific embodiment of the invention, first direction and second direction square crossing arrange, first direction is horizontal direction, second direction is vertical direction, this is only for non-limiting for example, the embodiment of the present invention is not limited to this, in actual production, first direction and second direction are intersected, the touch-control sensing layer 20 of the embodiment of the present invention comprises multiple touch-control sensing unit 21 that are arranged in parallel at first direction, each touch-control sensing unit 21 comprises the first electrode group 22 in the horizontal direction successively, the second electrode group 23 and third electrode group 24, in the specific embodiment of the invention, the first electrode group 22 and the second electrode group 23 distance are in the horizontal direction 1 micron to 400 microns, the second electrode group 23 is 1 micron to 400 microns with third electrode group 24 distance in the horizontal direction.
As shown in Figures 2 and 3, the first electrode group 22 in the specific embodiment of the invention comprises multiple the first electrode units 30 in second direction, each the first electrode unit 30 comprises at least two the first electrodes, in each the first electrode unit 30, each the first electrode all connects different lead-in wires, preferably, in each the first electrode unit 30, the number of the first electrode is N, N is more than or equal to 2 integer, like this, in the time that the number of the first electrode in each first electrode unit is identical, convenient in virtual electrode design, simple.
Each first electrode group 22 is electrically connected with N root lead-in wire, N in each first electrode unit 30 the first electrode respectively with the corresponding electrical connection one by one of N root lead-in wire, like this, because each first electrode group is electrically connected with N root lead-in wire, N in each first electrode unit the first electrode respectively with the corresponding electrical connection one by one of N root lead-in wire, therefore, the touch panel in the present invention can reduce touch panel number of leads, makes convenient, Yi Hang in actual production.Preferably, the number of the first electrode in the first electrode unit 30 in the specific embodiment of the invention is two, three, four or five, it should be noted that, the embodiment of the present invention is not limited to the number of these the first electrodes of mentioning, here, only taking the number of the first electrode as the situation of two as example is introduced, the touch-control lead-in wire that in each the first electrode unit 30, the first electrode of odd number order connects is identical, the touch-control lead-in wire that the first electrode of even number order connects is identical, and the second direction in the specific embodiment of the invention is vertical direction.Third electrode group 24 in the vertical directions comprise multiple third electrodes unit 32, each third electrode unit 32 comprises at least two third electrodes, in each third electrode unit 32, each third electrode all connects different lead-in wires, preferably, the quantity of each third electrode unit 32 interior third electrode is N, N is more than or equal to 2 integer, and each third electrode group 24 and N root lead-in wire be electrically connected, N third electrode in each third electrode unit 32 respectively with the corresponding electrical connection one by one that goes between of N root.Like this, because each third electrode group and N root lead-in wire be electrically connected, N third electrode in each third electrode unit respectively with the corresponding electrical connection one by one that goes between of N root, therefore, touch panel in the present invention can reduce touch panel number of leads, makes convenient, Yi Hang in actual production.Preferably, the number of the third electrode in the third electrode unit 32 in the specific embodiment of the invention is two, three, four or five, in actual production, the present invention is not limited to the number of these third electrodes of mentioning, here, only, taking the number of third electrode as the situation of two as example is introduced, the touch-control lead-in wire that in each third electrode unit 32, the third electrode of odd number order connects is identical, and the touch-control lead-in wire that the third electrode of even number order connects is identical.The second electrode group 23 in the vertical directions comprise multiple the second electrodes 31, each the second electrode 31 is connected respectively to different lead-in wires, preferably, as shown in Figure 4, corresponding first electrode unit 30 of each the second electrode 31 or third electrode unit 32 are oppositely arranged, certainly each the second electrode 31 also can not corresponding first electrode unit 30 or third electrode unit 32 be oppositely arranged, as shown in Figure 3, the lead-in wire difference that in Fig. 3, in adjacent the first electrode unit 30, the first adjacent electrode connects, the lead-in wire difference that in adjacent third electrode unit 32, adjacent third electrode connects.
Electrode in the specific embodiment of the invention in the first electrode group is induction electrode (Rx), and the electrode in the second electrode group is drive electrode (Tx), and the electrode in third electrode group is induction electrode (Rx); Or the electrode in the first electrode group is drive electrode (Tx), the electrode in the second electrode group is induction electrode (Rx), and the electrode in third electrode group is drive electrode (Tx).
As shown in Figures 2 and 3, electrode in the first electrode group in specific embodiment of the present invention is Rx, electrode in the second electrode group is Tx, electrode in third electrode group is Rx, the specific embodiment of the invention comprises that taking the first induction electrode unit 30 two the first induction electrode Rx1 and Rx2 are as example, and the first induction electrode Rx1 is connected with the touch control sensing circuit in FPC25 by an induction electrode lead-in wire respectively with Rx2.In Fig. 3, only show five groups of drive electrode Tx1, Tx2, Tx3, Tx4 and Tx5 in the second electrode group, each drive electrode Tx1, Tx2, Tx3, Tx4 and Tx5 are connected with the touch-control sweep circuit in FPC25 by a lead-in wire respectively.The specific embodiment of the invention comprises that taking the 3rd induction electrode unit 32 two the 3rd induction electrode Rx3 and Rx4 are as example, first direction is horizontal direction, and the 3rd induction electrode Rx3 is connected with the touch control sensing circuit in FPC25 by one bar of induction electrode lead-in wire respectively with Rx4.Preferably, in the specific embodiment of the invention, the first induction electrode width and the 3rd induction electrode width in the horizontal direction in the horizontal direction equates, convenient, simple in actual applications, as: the first induction electrode Rx1 and the 3rd induction electrode Rx3 width in the horizontal direction equate.Drive electrode in specific embodiment of the invention width is in the horizontal direction the twice of the first induction electrode or the 3rd induction electrode width in the horizontal direction, convenient, simple in actual applications, as: drive electrode Tx1 width is in the horizontal direction the twice of the first induction electrode Rx1 or the 3rd induction electrode Rx3 width in the horizontal direction.The first induction electrode unit 30 and the 3rd induction electrode unit 32 in the specific embodiment of the invention can be symmetrical arranged, and also can asymmetricly arrange, and do not do concrete restriction here.In order to ensure the symmetry of lead-in wire and the convenience that touch-control figure arranges, the lead-in wire of the first induction electrode Rx1 in the specific embodiment of the invention in the first induction electrode unit 30 is drawn from the left side of display panel, and the lead-in wire of the first induction electrode Rx2 is drawn from the right side of display panel; The lead-in wire of the 3rd induction electrode Rx3 in the 3rd induction electrode unit 32 is drawn from the left side of display panel, and the lead-in wire of the 3rd induction electrode Rx4 is drawn from the right side of display panel; The lead-in wire of drive electrode Tx1, Tx2, Tx3, Tx4 and Tx5 is also drawn from the arranged on left and right sides of display panel respectively.
The present invention also provides another kind of embodiment, and wherein, the electrode in the first electrode group is Tx, and the electrode in the second electrode group is Rx (not shown), and the electrode in third electrode group is Tx.In this case, the touch-control lead design of drive electrode Tx and induction electrode Rx is identical with the touch-control lead design of embodiment mono-, do not repeat them here, now each Tx can use same frequency to drive, also can use different frequency to drive, can realize equally the touch-control effect identical with embodiment mono-.
For example: taking the touch panel of same size as example, relatively the lead-in wire number in prior art and the specific embodiment of the invention, as shown in table 1.
Table 1
Associative list 1 can see, in the specific embodiment of the invention, 2 row Rx share 1 row Tx, form 2 groups of electric capacity, is listed as Rx and 1 row Tx and forms the design of one group of electric capacity compared with prior art 1, can reduce total columns, as: always columns is listed as and reduces to 7 row from original 14.In addition, in the specific embodiment of the invention, the first electrode group has comprised multiple the first electrode units, like this, makes a row Tx electrode use less quantity also can realize touch-control effect of equal value, can further reduce the quantity of touch-control lead-in wire.
Preferably, in the specific embodiment of the invention, the material of the first electrode is selected ITO or Nano Silver or carbon nano-tube; The material of the second electrode is selected ITO or Nano Silver or carbon nano-tube; The material of third electrode is selected ITO or Nano Silver or carbon nano-tube, the embodiment of the present invention is not done concrete restriction to the material of the first electrode, the second electrode and third electrode, as: the material of the first electrode, the second electrode and third electrode can also be selected Graphene.This makes convenient, Yi Hang in the time that the first electrode, the second electrode and third electrode are made.
The specific embodiment of the invention also provides a kind of touching device (not shown), and this touching device comprises any one touch panel as above.This touching device includes but not limited to show touching device, and this touch display unit includes but not limited to liquid crystal display touching device, such as, touch display unit can also be OLED touching device, does not do any restriction here.As shown in Figure 5, in the time that this touching device is liquid crystal display touching device, this touch panel comprises array base palte 50, color membrane substrates 51 and the liquid crystal layer 52 between array base palte 50 and color membrane substrates 51, touch-control sensing layer in the touch panel that the specific embodiment of the invention provides can be positioned at outside or the inner side of color membrane substrates 51, also can be positioned at inner side or the outside of array base palte 50.
In sum, the touching device of the embodiment of the present invention can effectively reduce the columns of touch-control sensing unit, in order to reduce touch panel number of leads, reduces FPC size, and then reduces production costs, and improves and produces yield.Meet client trivialization, the demand of high integration simultaneously.
Obviously, those skilled in the art can carry out various changes and modification and not depart from the spirit and scope of the present invention the present invention.Like this, if these amendments of the present invention and within modification belongs to the scope of the claims in the present invention and equivalent technologies thereof, the present invention is also intended to comprise these changes and modification interior.
Claims (14)
1. a touch panel, comprises touch-control sensing layer, and described touch-control sensing layer comprises multiple touch-control sensing unit of arranging along first direction, wherein:
Described in each, touch-control sensing unit comprises the first electrode group, the second electrode group and third electrode group in a first direction successively;
Described the first electrode group comprises multiple the first electrode units of arranging along second direction, and each the first electrode unit comprises at least two the first electrodes of arranging along second direction, and in each the first electrode unit, each described the first electrode all connects different lead-in wires;
Described the second electrode group comprises multiple the second electrodes of arranging along second direction, and each described the second electrode is connected respectively to different lead-in wires;
Described third electrode group comprises multiple third electrode unit of arranging along second direction, and each third electrode unit comprises at least two third electrodes of arranging along second direction, and in each third electrode unit, each described third electrode all connects different lead-in wires;
Wherein, described first direction intersects with described second direction.
2. touch panel according to claim 1, is characterized in that, described panel also comprises array base palte and/or color membrane substrates, and described touch-control sensing layer is arranged at described color membrane substrates outside or inner side, or is arranged at described array base palte inner side or outside.
3. touch panel according to claim 1, is characterized in that, in described each first electrode unit, the number of the first electrode is N, and N is more than or equal to 2 integer.
4. touch panel according to claim 3, is characterized in that, described each first electrode group and N root lead-in wire be electrically connected, the first electrode of the N in each first electrode unit respectively with the corresponding electrical connection one by one that goes between of N root.
5. touch panel according to claim 4, is characterized in that, the number of the first electrode in described the first electrode unit is two, three, four or five.
6. touch panel according to claim 1, is characterized in that, described each the second electrode pair answers first electrode unit or third electrode unit to be oppositely arranged.
7. touch panel according to claim 1, is characterized in that, in described each third electrode unit, the quantity of third electrode is N, and N is more than or equal to 2 integer.
8. touch panel according to claim 7, is characterized in that, described each third electrode group and N root lead-in wire be electrically connected, N third electrode in each third electrode unit respectively with the corresponding electrical connection one by one that goes between of N root.
9. touch panel according to claim 8, is characterized in that, the number of the third electrode in described third electrode unit is two, three, four or five.
10. touch panel according to claim 1, is characterized in that, the electrode in described the first electrode group is induction electrode, and the electrode in described the second electrode group is drive electrode, and the electrode in described third electrode group is induction electrode; Or the electrode in described the first electrode group is drive electrode, the electrode in described the second electrode group is induction electrode, and the electrode in described third electrode group is drive electrode.
11. touch panels according to claim 1, is characterized in that, described the first electrode width and described third electrode width in a first direction in a first direction equates.
12. touch panels according to claim 1, is characterized in that, described the second electrode width is in a first direction the twice of described the first electrode or described third electrode width in a first direction.
13. touch panels according to claim 1, is characterized in that, the material of described the first electrode is ITO or Nano Silver or carbon nano-tube; The material of described the second electrode is ITO or Nano Silver or carbon nano-tube; The material of described third electrode is ITO or Nano Silver or carbon nano-tube.
14. 1 kinds of touching devices, is characterized in that, described device comprises the touch panel described in the arbitrary claim of claim 1-13.
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| CN105183262B (en) * | 2015-10-13 | 2019-02-26 | 昆山龙腾光电有限公司 | A kind of capacitance type touch-control panel |
| CN107728354A (en) * | 2016-08-12 | 2018-02-23 | 鸿富锦精密工业（深圳）有限公司 | Embedded touch display device |
| CN107390914A (en) * | 2017-06-13 | 2017-11-24 | 深圳欧菲光科技股份有限公司 | Contact panel and display device |
| WO2020124439A1 (en) * | 2018-12-19 | 2020-06-25 | 深圳市柔宇科技有限公司 | Touch panel, touch device and touch detection method |
| CN113168249A (en) * | 2018-12-19 | 2021-07-23 | 深圳市柔宇科技股份有限公司 | Touch panel, touch device, and touch detection method |
| CN113424140A (en) * | 2019-03-26 | 2021-09-21 | 希迪普公司 | Touch sensor board |
| WO2022143049A1 (en) * | 2020-12-29 | 2022-07-07 | 北京奕斯伟计算技术有限公司 | Touch-control substrate, touch-control display panel, and touch-control apparatus |
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