CN108319402B - Touch panel and touch device - Google Patents
Touch panel and touch device Download PDFInfo
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- CN108319402B CN108319402B CN201710031332.XA CN201710031332A CN108319402B CN 108319402 B CN108319402 B CN 108319402B CN 201710031332 A CN201710031332 A CN 201710031332A CN 108319402 B CN108319402 B CN 108319402B
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
- G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
- G06F3/03—Arrangements for converting the position or the displacement of a member into a coded form
- G06F3/041—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means
- G06F3/044—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means by capacitive means
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
- G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
- G06F3/03—Arrangements for converting the position or the displacement of a member into a coded form
- G06F3/041—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means
- G06F3/0416—Control or interface arrangements specially adapted for digitisers
- G06F3/0418—Control or interface arrangements specially adapted for digitisers for error correction or compensation, e.g. based on parallax, calibration or alignment
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- Theoretical Computer Science (AREA)
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- Position Input By Displaying (AREA)
Abstract
The embodiment of the invention discloses a touch panel and a touch device, wherein the touch panel comprises: at least one repeating unit arranged along a first direction, wherein the repeating unit comprises a first touch electrode and a plurality of second touch electrodes formed on one side of the first touch electrode, the first touch electrode extends along a second direction, the second touch electrodes are block-shaped electrodes arranged along the second direction, and the first direction is different from the second direction; a plurality of connecting wires formed on the substrate base plate and respectively connected with the plurality of second touch electrodes, wherein the plurality of connecting wires are led out along a second direction; and at least one auxiliary electrode formed on the substrate and electrically connected with the first touch electrode and/or the second touch electrode, wherein the auxiliary electrode is arranged between the adjacent second touch electrodes, between the adjacent connecting wires or between the second touch electrodes and the connecting wires. The touch panel provided by the embodiment of the invention can be used for reducing the touch blind area in the touch panel and improving the accuracy of the touch panel.
Description
Technical Field
Embodiments of the present invention relate to touch technologies, and in particular, to a touch panel and a touch device.
Background
Currently, a touch panel is widely applied to various products such as a mobile phone, a tablet computer, an information query machine in a hall of a public place, and the like as an information input tool. Therefore, the user can operate the electronic equipment by only touching the touch panel with fingers, dependence of the user on other input equipment (such as a keyboard, a mouse and the like) is eliminated, and man-machine interaction is simpler.
Fig. 1 is a schematic structural diagram of a conventional touch panel. Referring to fig. 1, the touch panel is a common single-layer multi-point touch panel. The touch panel includes touch driving electrodes 11 and touch sensing electrodes 12. Each touch driving electrode 11 and each touch sensing electrode 12 in the touch panel are prepared from the same layer of transparent conductive material film, bridging and overlapping are not needed, the manufacturing process is simple, and the manufacturing cost is low. Meanwhile, the connection wires 13 electrically connected to the touch driving electrodes 11 or the touch sensing electrodes 12 may be completed in the plane, which is beneficial to realizing the ultra-narrow bezel design.
In the touch panel, the touch position is identified by detecting the capacitance variation on the touch driving electrode 11 and the touch sensing electrode 12, and the connecting wires 13 only perform the signal transmission function and cannot realize the touch position identification function. Therefore, in the touch panel, the rest of the area except the layout area of the touch driving electrodes 11 and the touch sensing electrodes 12 is called a touch blind area. In the conventional touch panel, the touch driving electrodes 11, the touch sensing electrodes 12, and the connecting wires 13 electrically connected to the touch driving electrodes 11 or the touch sensing electrodes 12 are not reasonably arranged, and the area occupied by the touch driving electrodes 11 and the touch sensing electrodes 12 is small, so that a large touch blind area exists in the touch panel. This will certainly reduce the accuracy of the touch panel, limiting its application in high-end products.
Disclosure of Invention
The invention provides a touch panel and a touch device, which are used for achieving the purposes of reducing touch blind areas in the touch panel and improving the accuracy of the touch panel.
In a first aspect, an embodiment of the present invention provides a touch panel, including:
a substrate base plate;
at least one repeating unit formed on the substrate and arranged in a first direction, the repeating unit including a first touch electrode extending in a second direction, and a plurality of second touch electrodes formed on one side of the first touch electrode, the second touch electrodes being block-shaped electrodes arranged in the second direction, the first direction being different from the second direction;
a plurality of connecting wires formed on the substrate and respectively connected with the plurality of second touch electrodes, wherein the plurality of connecting wires are led out along the second direction; and
at least one auxiliary electrode formed on the substrate and electrically connected to the first touch electrode and/or the second touch electrode, wherein the auxiliary electrode is disposed between the adjacent second touch electrodes, between the adjacent connecting wires, or between the second touch electrodes and the connecting wires.
Further, the auxiliary electrode is a block electrode;
the auxiliary electrodes and the second touch electrodes are alternately arranged along the second direction;
the auxiliary electrode is electrically connected with the first touch electrode.
Furthermore, along a direction far away from the leading-out direction of the connecting lead, the lengths of the auxiliary electrode and the second touch electrode in the first direction are gradually increased.
Further, the auxiliary electrode includes a first auxiliary electrode and a second auxiliary electrode;
the first auxiliary electrode and the second auxiliary electrode are comb-shaped electrodes;
the first auxiliary electrode and the second auxiliary electrode are mutually meshed, and the first auxiliary electrode, the second auxiliary electrode and the second touch electrode are alternately arranged along a second direction;
the first auxiliary electrode is electrically connected with the first touch electrode, and the second auxiliary electrode is electrically connected with the second touch electrode.
Further, the length of the auxiliary electrode in the first direction gradually increases along a direction away from the connection lead.
Further, the auxiliary electrode includes a first auxiliary electrode and a second auxiliary electrode;
the first auxiliary electrode and the second auxiliary electrode are strip-shaped electrodes extending along a second direction;
the first auxiliary electrode is arranged between the adjacent connecting wires or between the second touch electrode and the connecting wires, and the second auxiliary electrode is arranged between the adjacent connecting wires corresponding to different repeating units;
the first auxiliary electrode is electrically connected with the first touch electrode, and the second auxiliary electrode is electrically connected with the second touch electrode.
Further, along the first direction, the touch panel comprises N repeating units, wherein N is more than or equal to 2;
in the odd number of the repeating units, the second touch electrode is positioned on the first side of the first touch electrode;
in an even number of the repeating units, the second touch electrode is positioned on the second side of the first touch electrode;
the first side and the second side are symmetrical with respect to the first touch electrode.
Further, the connecting wires of two adjacent repeating units are led out from two opposite sides in the first direction.
Further, the first direction is perpendicular to the second direction.
Furthermore, the first touch electrode is a touch driving electrode, and the second touch electrode is a touch sensing electrode; or
The second touch electrode is a touch driving electrode, and the first touch electrode is a touch sensing electrode.
In a second aspect, an embodiment of the present invention further provides a touch device, where the touch device includes any one of the touch panels provided in the embodiments of the present invention.
In the embodiment of the invention, at least one auxiliary electrode electrically connected with the first touch electrode and/or the second touch electrode is additionally arranged in the touch panel, and the auxiliary electrode is arranged between the adjacent second touch electrodes, between the adjacent connecting leads or between the second touch electrodes and the connecting leads, so that the problem that the touch panel has a larger touch blind area due to a smaller area occupied by the touch driving electrode and the touch sensing electrode in the existing touch panel, and the touch position cannot be detected in the touch blind area is solved, the touch blind area in the touch panel is reduced, and the accuracy of the touch panel is improved.
Drawings
Fig. 1 is a schematic structural diagram of a conventional touch panel;
fig. 2a is a schematic structural diagram of a touch panel according to a second embodiment of the present invention;
FIG. 2b is an enlarged view of a portion of area A of FIG. 2 a;
fig. 3a is a schematic structural diagram of a touch panel according to a third embodiment of the present invention;
FIG. 3B is a partial enlarged view of area B of FIG. 3 a;
fig. 3c is a schematic structural diagram of another touch panel according to a third embodiment of the present invention;
fig. 4a is a schematic structural diagram of a touch panel according to a fourth embodiment of the present invention;
FIG. 4b is an enlarged partial view of region D of FIG. 4 a;
fig. 5a is a schematic structural diagram of a touch panel according to a fifth embodiment of the present invention;
FIG. 5b is an enlarged partial view of area E in FIG. 5 a;
fig. 6 is a schematic structural diagram of a touch device according to a sixth embodiment of the present invention.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings and examples. It is to be understood that the specific embodiments described herein are merely illustrative of the invention and are not limiting of the invention. It should be further noted that, for the convenience of description, only some of the structures related to the present invention are shown in the drawings, not all of the structures.
Example one
The first embodiment of the invention provides a touch panel. The touch panel includes: a substrate base plate; at least one repeating unit formed on the substrate and arranged in a first direction, the repeating unit including a first touch electrode extending in a second direction, and a plurality of second touch electrodes formed on one side of the first touch electrode, the second touch electrodes being block-shaped electrodes arranged in the second direction, the first direction being different from the second direction; a plurality of connecting wires formed on the substrate and respectively connected with the plurality of second touch electrodes, wherein the plurality of connecting wires are led out along the second direction; and at least one auxiliary electrode formed on the substrate and electrically connected with the first touch electrode and/or the second touch electrode, wherein the auxiliary electrode is arranged between the adjacent second touch electrodes, between the adjacent connecting wires or between the second touch electrodes and the connecting wires.
Optionally, the first direction is perpendicular to the second direction.
When the touch panel is used specifically, optionally, the first touch electrode is a touch driving electrode, and the second touch electrode is a touch sensing electrode; or the second touch electrode is a touch driving electrode, and the first touch electrode is a touch sensing electrode.
In the embodiment of the invention, at least one auxiliary electrode electrically connected with the first touch electrode and/or the second touch electrode is additionally arranged in the touch panel, and the auxiliary electrode is arranged between the adjacent second touch electrodes, between the adjacent connecting leads or between the second touch electrodes and the connecting leads, so that the problem that the touch panel has a larger touch blind area due to a smaller area occupied by the touch driving electrode and the touch sensing electrode in the existing touch panel, and the touch position cannot be detected in the touch blind area is solved, the touch blind area in the touch panel is reduced, and the accuracy of the touch panel is improved.
Example two
Fig. 2a is a schematic structural diagram of a touch panel according to a second embodiment of the present invention, and fig. 2b is a partially enlarged view of an area a in fig. 2 a. The present implementation is one specific example of the foregoing embodiments. Referring to fig. 2a and 2b, the touch panel includes: a base substrate 21; at least one repeating unit 22 (exemplarily only four repeating units 22 are included in fig. 2 a) arranged in a first direction (i.e., X-axis direction in the drawing) formed on the base substrate 21. The repeating unit 22 includes a first touch electrode 23, and a plurality of second touch electrodes 24 formed at one side of the first touch electrode 23. The first touch electrodes 23 extend along a second direction (i.e., Y-axis direction in the figure), the second touch electrodes 24 are block-shaped electrodes arranged along the second direction (i.e., Y-axis direction in the figure), and the first direction (i.e., X-axis direction in the figure) is different from the second direction (i.e., Y-axis direction in the figure); a plurality of connecting wires 25 formed on the substrate 21 and electrically connected to the plurality of second touch electrodes 24, respectively, and the plurality of connecting wires 25 are led out along a second direction (i.e., a Y-axis direction in the figure); and at least one auxiliary electrode 26 formed on the base substrate 21, the auxiliary electrode 26 being disposed between adjacent second touch electrodes 24.
Referring to fig. 2a, the first direction includes a positive X-axis direction and a negative X-axis direction, and the second direction includes a positive Y-axis direction and a negative Y-axis direction. The first direction is different from the second direction, and substantially means that the positive X-axis direction is different from the second direction (including the positive Y-axis direction and the negative Y-axis direction), and the negative X-axis direction is different from the second direction (including the positive Y-axis direction and the negative Y-axis direction). In other words, the first direction and the second direction are non-parallel to each other.
The auxiliary electrodes 26 are block-shaped electrodes, the auxiliary electrodes 26 and the second touch electrodes 24 are alternately arranged along a second direction (i.e., a Y-axis direction in the figure), and the auxiliary electrodes 26 are electrically connected to the first touch electrodes 23. In use, the auxiliary electrode 26 has the same function as the first touch electrode 23. The advantage of this design is that by disposing the auxiliary electrodes 26 in the gaps between the second touch electrodes 24, the dead touch area between the second touch electrodes 24 can be reduced, and the accuracy of the touch panel can be improved.
In a specific use, the first touch electrode 23 may be used as a touch driving electrode, and the second touch electrode 24 may be used as a touch sensing electrode; the second touch electrode 24 can also be used as a touch driving electrode, and the first touch electrode 23 can be used as a touch sensing electrode. The operation principle of the touch panel will be described below by taking the first touch electrode 23 (including the auxiliary electrode 26) as a touch driving electrode and the second touch electrode 24 as a touch sensing electrode as an example.
With continued reference to fig. 2a, after the touch panel is activated, a touch driving signal is input to the first touch electrode 23 (including the auxiliary electrode 26), and a detection signal output by each second touch electrode 24 is detected. Each second touch electrode 24 is coupled with the first touch electrode 23, and forms a coupling capacitor. When a user touches one of the second touch electrodes 24 on the touch panel, since the finger is a conductor, the capacitance between the first touch electrode 23 (including the auxiliary electrode 26) and the second touch electrode 24 at the touch position changes, so that the detection signal output by the second touch electrode 24 changes. By identifying the variation of the detection signal fed back by the second touch electrode 24, it is possible to determine which of the second touch electrodes 24 is touched.
On the basis of the above technical solution, in order to reduce the touch blind area of the touch panel to a greater extent, optionally, the lengths of the auxiliary electrode and the second touch electrode in the first direction are gradually increased along the direction away from the leading-out direction of the connection lead. Illustratively, as shown in fig. 2a, the connecting wire 25 is led out in the second direction (i.e., Y-axis direction in the figure), the leading end 251 thereof is close to the first side surface 211 of the touch panel, and the length a of the auxiliary electrode 26 in the first direction (i.e., X-axis direction in the figure) gradually increases in a direction away from the leading end of the connecting wire 25, i.e., in a direction away from the first side surface 211 of the touch panel. The length b of the second touch electrode 24 in the first direction (i.e., the X-axis direction in the figure) gradually increases. The essence of this arrangement is to reduce the extension length of the connecting wire 25 in the first direction (i.e. the X-axis direction in the figure), and to increase the coverage area of the touch electrodes (including the first touch electrode 23, the second touch electrode 24 and the auxiliary electrode 26) in the touch panel by disposing the auxiliary electrode 26 and the second touch electrode 24 in the area between the connecting wire 25 and the first touch electrode 23 and the area between the adjacent second touch electrodes 24, so as to achieve the purpose of reducing the touch dead zone and improving the accuracy of the touch panel.
EXAMPLE III
Fig. 3a is a schematic structural diagram of a touch panel according to a third embodiment of the present invention, and fig. 3B is a partially enlarged view of a region B in fig. 3 a. Compared with the previous embodiment, in the technical scheme of the embodiment, the auxiliary electrode is divided into the first auxiliary electrode and the second auxiliary electrode. Specifically, referring to fig. 3a and 3b, the auxiliary electrode 26 includes a first auxiliary electrode 261 and a second auxiliary electrode 262; the first auxiliary electrodes 261 and the second auxiliary electrodes 262 are comb-shaped electrodes, the first auxiliary electrodes 261 and the second auxiliary electrodes 262 are engaged with each other, and the first auxiliary electrodes 261, the second auxiliary electrodes 262 and the second touch electrodes 24 are alternately arranged along a second direction (i.e., a Y-axis direction in the figure); the first auxiliary electrode 261 is electrically connected to the first touch electrode 23, and the second auxiliary electrode 262 is electrically connected to the second touch electrode 24.
In the technical solution of the present embodiment, the first auxiliary electrode 261 and the second auxiliary electrode 262 are disposed in the gap between the second touch electrodes 24, so that the touch blind area between the second touch electrodes 24 can be reduced, and the accuracy of the touch panel can be improved.
On the basis of the above technical solution, optionally, the length c of the auxiliary electrode 26 (including the first auxiliary electrode 261 and the second auxiliary electrode 262) in the first direction (i.e., the X-axis direction in the figure) gradually increases along the direction leading away from the connecting lead 25. The essence of this arrangement is to reduce the extension length of the connecting wire 25 in the first direction (i.e. the X-axis direction in the figure), and to increase the coverage area of the touch electrodes (including the first touch electrode 23, the second touch electrode 24 and the auxiliary electrode 26) in the touch panel by disposing the auxiliary electrodes 26 (including the first auxiliary electrode 261 and the second auxiliary electrode 262) in the region between the connecting wire 25 and the first touch electrode 23 and the region between the adjacent second touch electrodes 24, so as to achieve the purpose of reducing the touch dead zone and increasing the accuracy of the touch panel.
It should be noted that, when the touch panel includes a plurality of repeating units, optionally, the second touch electrodes of each repeating unit may be disposed on the first side of the first touch electrode, the second touch electrodes of each repeating unit may also be disposed on the second side of the first touch electrode, the second touch electrodes of some repeating units may also be disposed on the first side of the first touch electrode, and the second touch electrodes of the remaining repeating units may also be disposed on the second side of the first touch electrode, where the first side and the second side are symmetric with respect to the first touch electrode.
Typically, as shown in FIG. 3a, the touch panel includes N repeating units along a first direction (i.e., X-axis direction in the figure), where N ≧ 2 (N ≧ 4 in FIG. 3 a). In the odd-numbered repeating units 22, the second touch electrode 24 is located on the first side of the first touch electrode 23 (corresponding to the first repeating unit 22 at the front left in fig. 3a and the third repeating unit 22, the second touch electrode 24 is located on the right side of the first touch electrode 23); in the even-numbered repeating units 22, the second touch electrode 24 is located on the second side of the first touch electrode 23 (corresponding to the first left second repeating unit 22 and the fourth repeating unit 22 in fig. 3a, the second touch electrode 24 is located on the left side of the first touch electrode 23). The first side (the first side is the right side of the first touch electrode 23 in fig. 3 a) and the second side (the second side is the left side of the first touch electrode 23 in fig. 3 a) are symmetrical with respect to the first touch electrode 23.
On this basis, the connecting wires 25 of two adjacent repeating units 22 may be led out from the same side in the first direction, or from two opposite sides in the first direction. Illustratively, referring to fig. 3c, the first repeating unit 22 from the left and the third repeating unit 22 are connected to the conducting wires 25 and led out along the second direction (i.e., the Y-axis direction in the figure), the leading end 251 of which is close to the first side surface 211 of the touch panel, and the second repeating unit 22 from the left and the fourth repeating unit 22 are connected to the conducting wires 25 and led out along the second direction (i.e., the Y-axis direction in the figure), the leading end 251 of which is close to the second side surface 212 of the touch panel, wherein the first side surface 211 of the touch panel and the second side surface 212 of the touch panel are located on different sides of the first direction, and the first side surface 211 of the touch panel is opposite to the second side surface 212 of the touch panel.
Referring to fig. 3a, the connecting wires 25 of two adjacent repeating units 22 are led out from the same side in the first direction, and the connecting wire 25 layout region between the first repeating unit 22 from the left and the second repeating unit 22 from the left has a width d in the first direction (i.e., the X-axis direction in the figure). Referring to fig. 3c, the connecting wires 25 of two adjacent repeating units 22 are led out from opposite sides in the first direction, and the width of the region where the connecting wires 25 are routed between the first repeating unit 22 from the left and the second repeating unit 22 from the left in the first direction (i.e., the X-axis direction in the figure) is d/2. Therefore, the connecting wires 25 of the two adjacent repeating units 22 are led out from the opposite sides in the first direction, and the width of the layout region of the connecting wires 25 between the two adjacent repeating units 22 in the first direction can be effectively shortened. By such an arrangement, a continuous touch blind area with a large area does not exist between two adjacent repeating units 22, and the sensitivity of the touch panel can be further improved.
Example four
Fig. 4a is a schematic structural diagram of a touch panel according to a fourth embodiment of the present invention, and fig. 4b is a partially enlarged view of a region D in fig. 4 a. Compared with the previous embodiment, in the technical scheme of the embodiment, the first auxiliary electrode and the second auxiliary electrode are different in arrangement shape and arrangement position. Referring to fig. 4a and 4b, the auxiliary electrodes 26 are disposed between the adjacent connecting wires 25 and between the connecting wires 25 and the second touch electrodes 24. The auxiliary electrode 26 includes a first auxiliary electrode 261 and a second auxiliary electrode 262. The first auxiliary electrode 261 and the second auxiliary electrode 262 are stripe-shaped electrodes extending in the second direction (i.e., the Y-axis direction in the drawing). The first auxiliary electrode 261 is disposed between the adjacent connection wires 25 or between the second touch electrode 24 and the connection wires 25, and the second auxiliary electrode 262 is disposed between the adjacent connection wires 25 corresponding to different repeating units 22. The first auxiliary electrode 261 is electrically connected to the first touch electrode 23, and the second auxiliary electrode 262 is electrically connected to the second touch electrode 24.
In a specific configuration, there may be a plurality of design methods for electrically connecting the first auxiliary electrode 261 and the first touch electrode 23. For example, the first auxiliary electrode 261 and the first touch electrode 23 are directly connected by a wire or the like, or the first auxiliary electrode 261 and the first touch electrode 23 are electrically connected to the same pin of the touch panel driving chip. Similarly, there are various methods for specifically disposing the second auxiliary electrode 262 to be electrically connected to the second touch electrode 24, and the detailed description thereof is omitted here.
In the technical scheme of the embodiment, the first auxiliary electrode 261 and the second auxiliary electrode 262 are arranged between the adjacent connecting wires 25 and between the connecting wires 25 and the second touch electrode 24, so that the touch blind area between the connecting wires 25 can be reduced, the layout area of the connecting wires 25 has the function of identifying the touch position, and the accuracy of the touch panel is improved.
EXAMPLE five
Fig. 5a is a schematic structural diagram of a touch panel according to a fifth embodiment of the present invention, and fig. 5b is a partially enlarged view of an area E in fig. 5 a. Referring to fig. 5a and 5b, in the touch panel, the auxiliary electrodes 26 can be divided into three types:
the first auxiliary electrodes 261 are strip-shaped electrodes extending along the second direction (i.e., the Y-axis direction in the figure), the first auxiliary electrodes 261 are disposed between the adjacent connecting wires 25 or between the second touch electrodes 24 and the connecting wires 25, and the first auxiliary electrodes 261 are electrically connected to the first touch electrodes 23.
The second auxiliary electrodes 262 are strip-shaped electrodes extending along a second direction (i.e., the Y-axis direction in the figure), the second auxiliary electrodes 262 are disposed between the adjacent connecting wires 25 corresponding to different repeating units 22, and the second auxiliary electrodes 262 are electrically connected to the second touch electrodes 24.
The third auxiliary electrodes 263 are block-shaped electrodes, the third auxiliary electrodes 263 and the second touch electrodes 24 are alternately arranged along a second direction (i.e., the Y-axis direction in the figure), and the third auxiliary electrodes 263 are electrically connected to the first touch electrodes 23.
It should be noted that the present embodiment is obtained by substantially combining the technical solutions in the second embodiment and the fourth embodiment. Compared with the foregoing embodiments, the embodiment of the invention can effectively reduce the touch blind area of the touch panel and improve the accuracy of the touch panel.
EXAMPLE six
Fig. 6 is a schematic structural diagram of a touch device according to a sixth embodiment of the present invention. Referring to fig. 6, the touch device 101 includes a touch panel 201 according to any embodiment of the present invention. The touch device can be a mobile phone, a computer, an intelligent wearable device, an information inquiry machine of a public hall and the like.
In the embodiment of the invention, at least one auxiliary electrode electrically connected with the first touch electrode and/or the second touch electrode is additionally arranged in the touch panel, and the auxiliary electrode is arranged between the adjacent second touch electrodes, between the adjacent connecting leads or between the second touch electrodes and the connecting leads, so that the problem that the touch panel has a larger touch blind area due to a smaller area occupied by the touch driving electrode and the touch sensing electrode in the existing touch panel, and the touch position cannot be detected in the touch blind area is solved, the touch blind area in the touch panel is reduced, and the accuracy of the touch panel is improved.
It is to be noted that the foregoing is only illustrative of the preferred embodiments of the present invention and the technical principles employed. It will be understood by those skilled in the art that the present invention is not limited to the particular embodiments described herein, but is capable of various obvious changes, rearrangements and substitutions as will now become apparent to those skilled in the art without departing from the scope of the invention. Therefore, although the present invention has been described in greater detail by the above embodiments, the present invention is not limited to the above embodiments, and may include other equivalent embodiments without departing from the spirit of the present invention, and the scope of the present invention is determined by the scope of the appended claims.
Claims (11)
1. A touch panel, comprising:
a substrate base plate;
at least one repeating unit formed on the substrate and arranged in a first direction, the repeating unit including a first touch electrode extending in a second direction, and a plurality of second touch electrodes formed on one side of the first touch electrode, the second touch electrodes being block-shaped electrodes arranged in the second direction, the first direction being different from the second direction;
a plurality of connecting wires formed on the substrate and respectively connected with the plurality of second touch electrodes, wherein the plurality of connecting wires are led out along the second direction; and
at least one auxiliary electrode formed on the substrate and electrically connected to the first touch electrode and/or the second touch electrode, wherein the auxiliary electrode is disposed between the adjacent second touch electrodes, between the adjacent connecting wires, or between the second touch electrodes and the connecting wires.
2. The touch panel according to claim 1, wherein the auxiliary electrode is a block electrode;
the auxiliary electrodes and the second touch electrodes are alternately arranged along the second direction;
the auxiliary electrode is electrically connected with the first touch electrode.
3. The touch panel of claim 2,
and along the direction far away from the leading-out direction of the connecting lead, the lengths of the auxiliary electrode and the second touch electrode in the first direction are gradually increased.
4. The touch panel according to claim 1, wherein the auxiliary electrodes include a first auxiliary electrode and a second auxiliary electrode;
the first auxiliary electrode and the second auxiliary electrode are comb-shaped electrodes;
the first auxiliary electrode and the second auxiliary electrode are mutually meshed, and the first auxiliary electrode, the second auxiliary electrode and the second touch electrode are alternately arranged along a second direction;
the first auxiliary electrode is electrically connected with the first touch electrode, and the second auxiliary electrode is electrically connected with the second touch electrode.
5. The touch panel of claim 4,
the length of the auxiliary electrode in the first direction is gradually increased along the direction far away from the leading-out direction of the connecting lead.
6. The touch panel according to claim 1, wherein the auxiliary electrodes include a first auxiliary electrode and a second auxiliary electrode;
the first auxiliary electrode and the second auxiliary electrode are strip-shaped electrodes extending along a second direction;
the first auxiliary electrode is arranged between the adjacent connecting wires or between the second touch electrode and the connecting wires, and the second auxiliary electrode is arranged between the adjacent connecting wires corresponding to different repeating units;
the first auxiliary electrode is electrically connected with the first touch electrode, and the second auxiliary electrode is electrically connected with the second touch electrode.
7. The touch panel of claim 1,
along the first direction, the touch panel comprises N repeating units, wherein N is more than or equal to 2,
in the odd number of the repeating units, the second touch electrode is positioned on the first side of the first touch electrode;
in an even number of the repeating units, the second touch electrode is positioned on the second side of the first touch electrode;
the first side and the second side are symmetrical with respect to the first touch electrode.
8. The touch panel according to claim 7, wherein the connecting wires of two adjacent repeating units are led out from two opposite sides in the first direction.
9. The touch panel of claim 1, wherein the first direction is perpendicular to the second direction.
10. The touch panel of claim 1,
the first touch control electrode is a touch control driving electrode, and the second touch control electrode is a touch control sensing electrode; or
The second touch electrode is a touch driving electrode, and the first touch electrode is a touch sensing electrode.
11. A touch device comprising the touch panel according to any one of claims 1 to 10.
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| CN201710031332.XA CN108319402B (en) | 2017-01-17 | 2017-01-17 | Touch panel and touch device |
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|---|---|---|---|
| CN201710031332.XA CN108319402B (en) | 2017-01-17 | 2017-01-17 | Touch panel and touch device |
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| CN108319402A CN108319402A (en) | 2018-07-24 |
| CN108319402B true CN108319402B (en) | 2021-11-30 |
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Address after: 1568 Jiugong Road, Jinshan District, Shanghai, 201506 Applicant after: Shanghai Hehui optoelectronic Co., Ltd Address before: 1568 Jiugong Road, Jinshan District, Shanghai, 201506 Applicant before: EVERDISPLAY OPTRONICS (SHANGHAI) Ltd. |
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