CN110058745B - Touch sensing device and touch panel - Google Patents
Touch sensing device and touch panel Download PDFInfo
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- CN110058745B CN110058745B CN201910340232.4A CN201910340232A CN110058745B CN 110058745 B CN110058745 B CN 110058745B CN 201910340232 A CN201910340232 A CN 201910340232A CN 110058745 B CN110058745 B CN 110058745B
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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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Abstract
The invention discloses a touch sensing device and a touch panel. Touch-sensitive device includes base plate and response layer, and wherein the response layer includes: a plurality of first electrodes, each first electrode comprising a plurality of first electrode blocks connected in series; and a plurality of second electrodes, each second electrode comprising a plurality of second electrode blocks connected in series. The first interconnection structure comprises a first connection block, the first connection block is arranged in a second electrode block which is adjacent to the adjacent first electrode block in a common mode and is insulated from the second electrode block, and the first connection block is electrically connected with the adjacent first electrode block. According to the touch sensing device provided by the embodiment of the invention, the capacitance induction quantity is increased while the electric connection of the adjacent first electrode blocks is realized through the first interconnection structure, so that the beneficial effects of sensitivity improvement, report rate improvement and the like based on the increase of the capacitance induction quantity can be further obtained.
Description
Technical Field
The invention relates to the field of touch sensing, in particular to a touch sensing device and a touch panel.
Background
With the continuous development of touch screens, touch panels are increasingly widely used in the field of terminal devices. The touch panel can be classified into a resistive type, a capacitive type, an optical type, a sonic type, and the like according to different sensing technologies, wherein the capacitive type touch panel further includes a self-capacitive type and a mutual capacitive type.
In the related mutual capacitance type touch device, a mutual capacitance array with a certain pattern is usually formed on the surface of glass, so that multi-point touch of the touch device is realized. In the mutual capacitance type touch device, the capacitance induction quantity of each mutual capacitance is a basic index influencing the touch performance of the touch device in various aspects.
Therefore, a touch sensing device with a higher capacitance sensing amount is desired.
Disclosure of Invention
The invention provides a touch sensing device and a touch panel, which can improve the capacitance sensing amount in the touch sensing device.
In one aspect, an embodiment of the present invention provides a touch sensing device, including a substrate; and a sensing layer on the substrate, wherein the sensing layer includes: a plurality of first electrodes, each first electrode extending in a first direction, each first electrode including a plurality of first electrode blocks connected in series; and the plurality of second electrodes are arranged in an insulated manner with the plurality of first electrodes, each second electrode extends along a second direction, each second electrode comprises a plurality of second electrode blocks connected in series, the second direction is crossed with the first direction, adjacent first electrode blocks connected in series to the same first electrode are electrically connected through at least one group of first interconnection structures, each first interconnection structure comprises a first connecting block, the first connecting block is arranged in the second electrode block which is adjacent to the adjacent first electrode block in a shared manner and is insulated from the second electrode block, and the first connecting block is electrically connected with the adjacent first electrode block.
According to an aspect of the embodiments of the present invention, adjacent second electrode blocks connected in series to the same second electrode are electrically connected by at least one set of second interconnection structures including second connection blocks disposed in and insulated from first electrode blocks commonly adjacent to the adjacent second electrode blocks, the second connection blocks being electrically connected to the adjacent second electrode blocks.
According to one aspect of the embodiment of the invention, the second electrode block is provided with a first opening capable of accommodating the first connecting block, the shape of the first opening is matched with that of the accommodated first connecting block, and a gap is formed between the contour line of the first opening and the outer boundary line of the first connecting block; and/or the first electrode block is provided with a second opening capable of accommodating the second connecting block, the shape of the second opening is matched with that of the accommodated second connecting block, and a gap is formed between the outline of the second opening and the outer boundary line of the second connecting block.
According to an aspect of the embodiments of the present invention, each of the sets of first interconnection structures includes at least two first connection blocks electrically connected in a series structure, a first connection block positioned first in the series structure is electrically connected to one of the adjacent first electrode blocks, and a last first connection block positioned last in the series structure is electrically connected to the other one of the adjacent first electrode blocks; and/or each group of second interconnection structures comprises at least two second connection blocks electrically connected in a series structure, the first second connection block in the series structure is electrically connected to one of the adjacent second electrode blocks, and the last second connection block in the series structure is electrically connected to the other one of the adjacent second electrode blocks.
According to an aspect of the embodiment of the present invention, the touch sensing apparatus further includes: the first interconnection structure comprises an insulating layer, a first electrode block and a second electrode block, wherein the insulating layer is arranged on one side surface of the sensing layer, the first interconnection structure further comprises at least one first lead, the first lead is positioned on one side surface, away from the sensing layer, of the insulating layer, one end of each first lead is connected to one first connecting block included in the first interconnection structure through a via hole, and the other end of each first lead is connected to the first electrode block through a via hole or is connected to the other first connecting block included in the first interconnection structure through a via hole; and/or the second interconnection structure further comprises at least one second wire, the second wire is positioned on one side surface of the insulating layer, which faces away from the sensing layer, one end of each second wire is connected to one second connection block included in the second interconnection structure through a via, and the other end of each second wire is connected to the second electrode block through a via or is connected to the other second connection block included in the second interconnection structure through a via.
According to an aspect of the embodiments of the present invention, the outer boundary line of each first connection block includes at least one fold line segment; and/or the outer boundary line of each second connecting block comprises at least one fold line segment.
According to an aspect of the embodiment of the present invention, the broken line segment is a zigzag broken line segment.
According to one aspect of the embodiment of the invention, the first electrode blocks are in a diamond shape, one corner of one first electrode block in the adjacent first electrode blocks is opposite to and spaced from one corner of the other first electrode block, the second electrode blocks are in a diamond shape, and one corner of one second electrode block in the adjacent second electrode blocks is opposite to and spaced from one corner of the other second electrode block.
According to one aspect of the embodiment of the invention, the centers of a plurality of first electrode blocks connected in series on the same first electrode are collinear to a first extension line, at each adjacent first electrode block, two second electrode blocks which are adjacent to the adjacent first electrode blocks are symmetrically distributed on two sides of the first extension line, the adjacent first electrode blocks are electrically connected through at least two groups of first interconnection structures, and the at least two groups of first interconnection structures are symmetrically arranged around the first extension line; and/or the centers of a plurality of second electrode blocks connected in series with the same second electrode are collinear with a second extension line, two first electrode blocks which are adjacent to the adjacent second electrode blocks are symmetrically distributed at two sides of the second extension line at each adjacent second electrode block, the adjacent second electrode blocks are electrically connected through at least two groups of second interconnection structures, and the at least two groups of second interconnection structures are symmetrically arranged relative to the second extension line.
In another aspect, an embodiment of the present invention provides a touch panel, which includes the touch sensing device in any of the above embodiments.
According to the touch sensing device and the touch panel provided by the embodiment of the invention, the adjacent first electrode blocks connected in series with the same first electrode are electrically connected through at least one group of first interconnection structures. Wherein the first interconnect structure includes a first connection block disposed within and insulated from a second electrode block that is commonly adjacent to an adjacent first electrode block, the first connection block being electrically connected to the adjacent first electrode block such that the first connection block has the same electrical properties as the first electrode block. Furthermore, the first connecting block has the same electrical property as the first electrode block, so that a capacitor can be formed between the first connecting block and the peripheral second electrode block, and the capacitance induction quantity is increased. In the embodiment of the invention, the capacitance induction quantity is increased while the electric connection of the adjacent first electrode blocks is realized through the first interconnection structure, so that the beneficial effects of sensitivity improvement, point reporting rate improvement and the like based on the increase of the capacitance induction quantity can be further obtained.
Drawings
Other features, objects and advantages of the invention will become apparent from the following detailed description of non-limiting embodiments thereof, when read in conjunction with the accompanying drawings, in which like reference characters designate the same or similar parts throughout the figures thereof, and which are not to scale.
Fig. 1 is a schematic structural diagram of a touch sensing device according to a first embodiment of the invention;
FIG. 2 is a schematic diagram illustrating a partial structure of a sensing layer in a touch sensing device according to a first embodiment of the present invention;
fig. 3 is a schematic cross-sectional view in the direction BB in fig. 2 of a touch-sensitive apparatus according to a first embodiment of the invention;
FIG. 4 is a schematic diagram showing a partial structure of a sensing layer in a touch sensing device according to a second embodiment of the invention;
fig. 5 is a partial structural view illustrating a sensing layer in a touch sensing device according to a third embodiment of the present invention.
Detailed Description
Features of various aspects and exemplary embodiments of the present invention will be described in detail below, and in order to make objects, technical solutions and advantages of the present invention more apparent, the present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not to be construed as limiting the invention. It will be apparent to one skilled in the art that the present invention may be practiced without some of these specific details. The following description of the embodiments is merely intended to provide a better understanding of the present invention by illustrating examples of the present invention.
It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.
An embodiment of the present invention provides a touch sensing device, and fig. 1 is a schematic structural diagram of the touch sensing device according to the first embodiment of the present invention. The touch sensing apparatus may include a substrate 100 and a sensing layer 200 on the substrate 100, and in some embodiments, the touch sensing apparatus may further include a protective layer (not shown in fig. 1) on the sensing layer 200. It should be noted that, in order to clearly illustrate the sensing layer 200, other layer structures on the sensing layer 200 are shown hidden in fig. 1.
The substrate 100 may be a transparent insulating substrate such as glass, or in some embodiments, may be an opaque substrate. In some embodiments, a complete display panel or a semi-finished product of the display panel may also be used as the substrate 100 according to the embodiments of the present invention.
The sensing layer 200 includes a plurality of first electrodes 210 and a plurality of second electrodes 220. Each first electrode 210 extends along the first direction X, and each first electrode 210 includes a plurality of first electrode blocks 211 connected in series. The plurality of second electrodes 220 are disposed to be insulated from the plurality of first electrodes 210, each of the second electrodes 220 extends in a second direction Y, each of the second electrodes 220 includes a plurality of second electrode blocks 221 connected in series, and the second direction Y crosses the first direction X.
In fig. 1, an extending direction of one first electrode 210 is shown by a first extending line L1, and an extending direction of one second electrode 220 is shown by a second extending line L2. In the following embodiments, the first electrode 210 is a driving electrode, and the second electrode 220 is a sensing electrode; in other embodiments, the two electrodes may be electrically interchanged, i.e., the first electrode 210 may be a sensing electrode and the second electrode 220 may be a driving electrode. In some embodiments, the second direction Y may be perpendicular to the first direction X.
The first electrode 210 includes a plurality of first electrode blocks 211, and the second electrode 220 includes a plurality of second electrode blocks 221, which may be made of a patterned conductive material. In some embodiments, the first electrode blocks 211 and the second electrode blocks 221 may be made of Indium Tin Oxide (ITO), metal mesh, nano metal wires such as silver nano wires (AgNW), graphene, and other materials with high light transmittance, so as to allow a backlight display while achieving touch sensing. In other embodiments, the material of the first electrode block 211 and the second electrode block 221 may be a non-transparent conductive material, for example, when the touch sensing device is applied to a touch pad without a display function, the first electrode block 211 and the second electrode block 221 may be made of some metal conductive materials.
As shown in fig. 1, in some embodiments, the plurality of first electrodes 210 and the plurality of second electrodes 220 may be respectively connected to the bonding regions 290 disposed on the substrate 100 through the corresponding outgoing lines 280. The touch sensing device may be connected to an external touch control circuit through the bonding region 290, and the plurality of first electrodes 210 and the plurality of second electrodes 220 are respectively corresponding to corresponding signal channels of the touch control circuit, thereby forming the touch device. For example, the plurality of first electrodes 210 are connected to a signal path of a driving signal (TX) of the touch control circuit, and the plurality of second electrodes 220 are connected to a signal path of a sensing signal (RX) of the touch control circuit.
Fig. 2 is a partial structural view illustrating a sensing layer in a touch sensing device according to a first embodiment of the present invention, wherein fig. 2 illustrates a partial enlarged structure of a region a in fig. 1. The first electrode block 211 and the second electrode block 221 have a predetermined gap 270 therebetween so as to be insulated from each other, and in some embodiments, the predetermined gap 270 may be 3 to 300 micrometers, and the size thereof may be adjusted according to actual process requirements and design requirements.
At the position where each first electrode 210 and each second electrode 220 cross each other, a mutual capacitance is formed between the outer boundaries of the first electrode blocks 211 on the first electrodes 210 and the outer boundaries of the second electrode blocks 221 on the second electrodes 220, so as to generate a capacitance induction quantity. The plurality of first electrodes 210 and the plurality of second electrodes 220 are insulatively crossed, thereby forming a mutual capacitance array.
When a finger or some other object touches the touch-sensitive device, the capacitance value of the mutual capacitance in the vicinity of the touch point changes. In the detection stage, the first electrode 210 receives an excitation signal sent by the touch device, and a touch control circuit in the touch device can obtain a variation of a capacitance value at each position in the mutual capacitance array by detecting the second electrode 220, so as to obtain coordinates of each touch point.
The shapes of the first electrode block 211 and the second electrode block 221 may be diamond, rectangular, triangular, and the like. In this embodiment, the first electrode block 211 and the second electrode block 221 in the inner region of the sensing layer 200 are rhombus, and the first electrode block 211 and the second electrode block 221 in the edge region of the sensing layer 200 are triangle (approximately half of the rhombus). In other embodiments, the shapes of the first electrode block 211 and the second electrode block 221 can be adjusted according to the requirement.
As shown in fig. 2, in the present embodiment, the adjacent first electrode blocks 211 connected in series to the same first electrode 210 are electrically connected by at least one set of first interconnection structures 230. The first interconnection structure 230 includes a first connection block 231, the first connection block 231 being disposed within a second electrode block 221 that is commonly adjacent to an adjacent first electrode block 211 and insulated from the second electrode block 221, the first connection block 231 being electrically connected to the adjacent first electrode block 211.
According to the touch sensing device of the embodiment of the invention, since the first connection block 231 is electrically connected to the adjacent first electrode block 211, the first connection block 231 has the same electrical property as the first electrode block 211. Further, the first connecting block 231 is located in the area occupied by the second electrode block 221, so that a capacitance can be formed between the first connecting block and the peripheral second electrode block 221, thereby increasing the capacitance induction. In the embodiment of the present invention, the first interconnection structure 230 is used to electrically connect the adjacent first electrode blocks 211 and increase the capacitance sensing amount, so that the beneficial effects of sensitivity improvement, reporting rate improvement, and the like, which are caused by the increase of the capacitance sensing amount, can be obtained.
In the present embodiment, the adjacent second electrode blocks 221 connected in series to the same second electrode 220 are electrically connected by at least one set of second interconnection structures 240. The second interconnection structure 240 includes a second connection block 241, the second connection block 241 being disposed in the first electrode block 211 commonly adjacent to the adjacent second electrode block 221 and insulated from the first electrode block 211, the second connection block 241 being electrically connected to the adjacent second electrode block 221 such that the second connection block 241 has the same electrical property as the second electrode block 221. Further, the second connecting block 241 is located in the area occupied by the first electrode block 211, so as to form a capacitance with the peripheral first electrode block 211, thereby further increasing the capacitance induction. In the embodiment of the present invention, the second interconnection structure 240 is used to electrically connect the adjacent second connection blocks 241, and the capacitance sensing amount is increased, so that the beneficial effect of increasing the capacitance sensing amount is further improved.
As shown in fig. 2, the second electrode block 221 is provided with a first opening 222 capable of accommodating the first connection block 231, the shape of the first opening 222 matches the shape of the accommodated first connection block 231, and a gap is formed between the contour line of the first opening 222 and the outer boundary line of the first connection block 231, so that the first connection block 231 is insulated from the second electrode block 221, and a capacitor is formed between the outer boundary line of the first connection block 231 and the contour line of the first opening 222 of the second electrode block 221, thereby increasing the capacitance induction.
In some embodiments, the first electrode block 211 is provided with a second opening 212 capable of receiving the second connection block 241, the shape of the second opening 212 matches the shape of the received second connection block 241, and a gap is formed between the outline of the second opening 212 and the outer boundary line of the second connection block 241, so that the second connection block 241 is insulated from the first electrode block 211, and a capacitance is formed between the outer boundary line of the second connection block 241 and the outline of the second opening 212 of the first electrode block 211, thereby increasing the capacitance induction.
In the present embodiment, the first connection block 231 is a rectangular block having a substantially square shape, and in other embodiments, the shape of the first connection block 231 may not be limited thereto. In this embodiment, the second connection block 241 is also a rectangular block with a substantially square shape, and in other embodiments, the shape of the second connection block 241 is not limited thereto.
In this embodiment, the first electrode blocks 211 are rhombus-shaped, and a corner of one first electrode block 211 and a corner of another first electrode block 211 in adjacent first electrode blocks 211 are opposite and spaced apart from each other. The second electrode blocks 221 are rhombus-shaped, and one corner of one second electrode block 221 in the adjacent second electrode blocks 221 is opposite to and spaced from one corner of the other second electrode block 221.
As shown in fig. 1 and 2, in the present embodiment, the centers of the plurality of first electrode blocks 211 connected in series to the same first electrode 210 are collinear to the first extension line L1.
In some embodiments, at each adjacent first electrode block 211, two second electrode blocks 221, which are commonly adjacent to the adjacent first electrode blocks 211, are symmetrically distributed on both sides of the first extension line L1, the adjacent first electrode blocks 211 are electrically connected by at least two sets of first interconnection structures 230, and the at least two sets of first interconnection structures 230 are symmetrically arranged about the first extension line L1. For example, in the embodiment shown in fig. 2, the adjacent first electrode blocks 211 are electrically connected by two sets of first interconnection structures 230, and the two sets of first interconnection structures 230 are symmetrically arranged about the first extension line L1, so that the capacitance sensing amount of the sensing layer 200 is increased and the stability of the electrical connection between the adjacent first electrode blocks 211 is improved.
As shown in fig. 1 and 2, in the present embodiment, the centers of the plurality of second electrode blocks 221 connected in series to the same second electrode 220 are collinear to the second extension line L2.
In some embodiments, at each adjacent second electrode block 221, two first electrode blocks 211 which are commonly adjacent to the adjacent second electrode blocks 221 are symmetrically distributed on both sides of the second extension line L2, the adjacent second electrode blocks 221 are electrically connected by at least two sets of second interconnection structures 240, and the at least two sets of second interconnection structures 240 are symmetrically arranged about the second extension line L2. For example, in the embodiment shown in fig. 2, the adjacent second electrode blocks 221 are electrically connected by two sets of second interconnection structures 240, and the two sets of second interconnection structures 240 are symmetrically arranged with respect to the second extension line L2, so that the stability of the electrical connection between the adjacent second electrode blocks 221 is improved while the capacitance sensing amount of the sensing layer 200 is increased.
Fig. 3 is a schematic cross-sectional view in the direction BB in fig. 2 of a touch sensing device according to a first embodiment of the present invention. In this embodiment, the touch sensing apparatus may further include an insulating layer 250, where the insulating layer 250 is disposed on a side surface of the sensing layer 200, and in this embodiment, the insulating layer 250 is disposed on a side surface of the sensing layer 200 facing away from the substrate 100. In some other embodiments, the insulating layer 250 may also be disposed on a surface of the sensing layer 200 facing the substrate 100.
The first interconnect structure 230 may further include at least one first conductive line 232, and the first conductive line 232 is located on a side surface of the insulating layer 250 facing away from the sensing layer 200. One end of each of the first conductive lines 232 is connected to one of the first connection blocks 231 included in the first interconnection structure 230 through a via, and the other end is connected to the first electrode block 211 through a via, thereby achieving electrical connection of the first connection block 231 to the first electrode block 211. In some other embodiments, each group of the first interconnect structures 230 may include at least two first connection blocks 231 electrically connected in a series structure, and the first conductive line 232 may also be configured to have one end connected to one first connection block 231 included in the first interconnect structure 230 through a via and the other end connected to another first connection block 231 included in the first interconnect structure 230 through a via, so as to electrically connect two adjacent first connection blocks 231 in the series structure.
In some embodiments, the first conductive line 232 may be made of a metal material such as Mo, MoAlMo, TiAlTi, or the like; in some embodiments, the first conductive line 232 may also be made of a transparent conductive material such as ITO.
In some embodiments, the second interconnect structure 240 further includes at least one second conductive line 242, and the second conductive line 242 is located on a side surface of the insulating layer 250 facing away from the sensing layer 200. One end of each of the second conductive lines 242 is connected to one of the second connection blocks 241 included in the second interconnection structure 240 through a via hole, and the other end is connected to the second electrode block 221 through a via hole, thereby achieving electrical connection of the second connection block 241 to the second electrode block 221. In other embodiments, each group of the second interconnection structures 240 may include at least two second connection blocks 241 electrically connected in a series structure, and the second wires 242 may also be configured to have one end connected to one second connection block 241 included in the second interconnection structure 240 through a via and the other end connected to another second connection block 241 included in the second interconnection structure 240 through a via, thereby achieving electrical connection of two adjacent second connection blocks 241 in the series structure.
The second conductive line 242 may be made of a metal material such as Mo, MoAlMo, TiAlTi, or a transparent conductive material such as ITO.
In the foregoing embodiment, each group of the first interconnect structures 230 includes one first connection block 231, however, the number of the first connection blocks 231 included in each group of the first interconnect structures 230 may not be limited thereto. Likewise, the number of the second connection blocks 241 included in each group of the second interconnection structures 240 may not be limited to the above-described embodiment.
In some embodiments, the touch sensing apparatus may further include a protection layer 260, wherein the protection layer 260 is disposed on the sensing layer 200, the insulating layer 250, the first conductive line 232, and the second conductive line 242 and covers at least a portion of the sensing layer 200, the insulating layer 250, the first conductive line 232, and the second conductive line 242, so as to provide protection.
Fig. 4 is a schematic view showing a partial structure of a sensing layer in a touch sensing device according to a second embodiment of the present invention, and the general structure of the touch sensing device of the second embodiment may be similar to that of the touch sensing device of the first embodiment, and will not be described in detail herein. Unlike the first embodiment, in the second embodiment, each group of the first interconnect structures 230 includes at least two first connection blocks 231 electrically connected in a series structure, and the embodiment shown in fig. 4 is exemplified by each group of the first interconnect structures 230 including three first connection blocks 231 electrically connected in a series structure.
Wherein the first connecting block 231 of the first position in the series structure is electrically connected to one of the adjacent first electrode blocks 211, and the first connecting block 231 of the last position in the series structure is electrically connected to the other one of the adjacent first electrode blocks 211, so that the adjacent first electrode blocks 211 are electrically connected to each other through the plurality of first connecting blocks 231 connected in series. Meanwhile, the number of the first openings 222 provided in the second electrode block 221 may correspond to the number of the first connection blocks 231.
According to the touch sensing device of the present embodiment, each group of the first interconnection structures 230 includes at least two first connection blocks 231, and a capacitance is formed between an outer boundary line of each first connection block 231 and a contour line of the second electrode block 221 corresponding to the first opening 222, so that the number of formed capacitances is increased, and the capacitance sensing amount is further increased.
The touch sensing apparatus may further include an insulating layer disposed on one side surface of the sensing layer 200. The first interconnect structure 230 may further include at least one first conductive line 232, and the first conductive line 232 is located on a side surface of the insulating layer 250 facing away from the sensing layer 200. One end of the first wire 232 is connected to one first connection block 231 included in the first interconnection structure 230 through a via, and the other end is connected to the first electrode block 211 through a via, thereby achieving electrical connection of the first connection block 231 with the first electrode block 211. Alternatively, one end of the first wire 232 is connected to one first connection block 231 included in the first interconnect structure 230 through a via, and the other end is connected to another first connection block 231 included in the first interconnect structure 230 through a via, thereby achieving electrical connection of two adjacent first connection blocks 231 in the series structure.
As shown in fig. 4, in some embodiments, each set of second interconnect structures 240 includes at least two second connection blocks 241 electrically connected in a series configuration, e.g., each set of first interconnect structures 230 includes three first connection blocks 231. The first second connection block 241 in the series structure is electrically connected to one of the adjacent second electrode blocks 221, and the last second connection block 241 in the series structure is electrically connected to the other of the adjacent second electrode blocks 221, so that the adjacent second electrode blocks 221 are electrically connected to each other through the plurality of second connection blocks 241 connected in series. Meanwhile, the number of the second openings 212 provided to the first electrode block 211 may correspond to the number of the second connection blocks 241.
According to the touch sensing device of the present embodiment, each group of the second interconnection structures 240 includes at least two second connection blocks 241, and a capacitance is formed between an outer boundary line of each second connection block 241 and a contour line of the first electrode block 211 corresponding to the second opening 212, so that the number of formed capacitances is increased, and the capacitance sensing amount is further improved.
In some embodiments, the second interconnect structure 240 further includes at least one second conductive line 242, and the second conductive line 242 is located on a side surface of the insulating layer 250 facing away from the sensing layer 200. One end of the second wire 242 is connected to one second connection block 241 included in the second interconnection structure 240 through a via hole, and the other end is connected to the second electrode block 221 through a via hole, thereby achieving electrical connection of the second connection block 241 and the second electrode block 221. Alternatively, one end of the second wire 242 is connected to one second connection block 241 included in the second interconnection structure 240 through a via, and the other end is connected to another second connection block 241 included in the second interconnection structure 240 through a via, thereby achieving electrical connection of two adjacent second connection blocks 241 in the series structure.
Besides being configured as a rectangular block, the shape of the first connection block 231 may also be a regular shape such as a hexagon, a triangle, etc., and in other embodiments, the shape of the first connection block 231 may also be some irregular shape. Similarly, the shape of the second connecting block 241 may be regular, such as hexagonal, triangular, etc., besides being configured as a rectangular block, or in some other embodiments, the shape of the first connecting block 231 may also be irregular.
Fig. 5 is a partial structural view showing a sensing layer in a touch sensing device according to a third embodiment of the present invention, and the general structure of the touch sensing device of the third embodiment may be similar to that of the touch sensing device of the third embodiment, and will not be described in detail herein. Unlike the first embodiment, in the third embodiment, the outer boundary line of each first connection block 231 includes at least one fold line segment, thereby obtaining a longer outer boundary line on the first connection blocks 231 occupying the same area. The capacitance induction amount of the capacitor formed by each first connection block 231 and the peripheral second electrode block 221 is positively correlated with the outer boundary line of the first connection block 231, and in the embodiment, each first connection block 231 has a longer outer boundary line, so that the capacitance induction amount of the capacitor formed by the first connection block 231 and the peripheral second electrode block 221 is further improved.
In some embodiments, the outer boundary line of each first connection block 231 includes at least one zigzag broken line segment. Each of the first connection blocks 231 of the present embodiment is formed in a shape of a plurality of substantially hexagonal pieces, and thus has two zigzag-shaped outer boundary lines disposed opposite to each other.
In some embodiments, the outer boundary line of each second connection block 241 may also include at least one broken line segment, so as to obtain a longer outer boundary line on the second connection block 241 occupying the same area. The outer boundary line of each second connection block 241 may include at least one zigzag broken line segment. Each of the second connecting blocks 241 of this embodiment is formed by splicing a plurality of hexagons to have two zigzag-shaped outer boundary lines disposed opposite to each other.
According to the touch sensing apparatus of the present embodiment, since each of the second connection blocks 241 obtains a longer outer boundary line, a capacitance sensing amount of forming a capacitance with the peripheral first electrode block 211 is further improved.
The embodiment of the invention also provides a touch panel, which can comprise the touch sensing device of any one of the embodiments. In the touch panel according to the embodiment of the invention, in the touch sensing device, the adjacent first electrode blocks 211 connected in series to the same first electrode 210 are electrically connected through at least one group of first interconnection structures 230. The first interconnection structure 230 includes a first connection block 231, the first connection block 231 is disposed in a second electrode block 221 that is adjacent to an adjacent first electrode block 211, and is insulated from the second electrode block 221, and the first connection block 231 is electrically connected to the adjacent first electrode block 211, such that the first connection block 231 has the same electrical property as the first electrode block 211. Further, the first connection block 231 has the same electrical property as the first electrode block 211, so that a capacitance can be formed between the first connection block and the peripheral second electrode block 221, thereby increasing the capacitance induction. In the embodiment of the present invention, the first interconnection structure 230 increases the capacitance sensing amount while realizing the electrical connection of the adjacent first electrode blocks 211, so that the beneficial effects such as sensitivity improvement and reporting rate improvement based on the increase of the capacitance sensing amount can be obtained.
In accordance with the above-described embodiments of the present invention, these embodiments are not intended to be exhaustive or to limit the invention to the precise embodiments disclosed. Obviously, many modifications and variations are possible in light of the above teaching. The embodiments were chosen and described in order to best explain the principles of the invention and the practical application, to thereby enable others skilled in the art to best utilize the invention and various embodiments with various modifications as are suited to the particular use contemplated. The invention is limited only by the claims and their full scope and equivalents.
Claims (8)
1. A touch-sensitive apparatus, comprising:
a substrate; and
a sensing layer on the substrate,
wherein the sensing layer comprises:
a plurality of first electrodes, each of the first electrodes extending in a first direction, each of the first electrodes comprising a plurality of first electrode blocks connected in series;
a plurality of second electrodes provided to be insulated from the plurality of first electrodes, each of the second electrodes extending in a second direction, each of the second electrodes including a plurality of second electrode blocks connected in series, the second direction crossing the first direction,
the first electrode blocks which are connected in series with the same first electrode in series are electrically connected through at least one group of first interconnection structures, each first interconnection structure comprises a first connection block, each first connection block is arranged in a second electrode block which is adjacent to the adjacent first electrode block in common and is insulated from the second electrode block, and the first connection blocks are electrically connected with the adjacent first electrode blocks;
adjacent second electrode blocks connected in series to the same second electrode are electrically connected through at least one group of second interconnection structures, each second interconnection structure comprises a second connection block, each second connection block is arranged in a first electrode block which is adjacent to the adjacent second electrode block in common and is insulated from the first electrode block, and each second connection block is electrically connected with the adjacent second electrode block;
each set of the first interconnect structures includes at least two of the first connection blocks electrically connected in a series configuration, the first connection block first in the series configuration being electrically connected to one of the adjacent first electrode blocks, the first connection block last in the series configuration being electrically connected to another one of the adjacent first electrode blocks;
each set of the second interconnection structures includes at least two of the second connection blocks electrically connected in a series structure, the first connection block in the series structure being electrically connected to one of the adjacent second electrode blocks, and the last connection block in the series structure being electrically connected to the other of the adjacent second electrode blocks.
2. The touch sensing device of claim 1, wherein the second electrode block is provided with a first opening capable of receiving the first connecting block, the shape of the first opening matches the shape of the received first connecting block, and a gap is formed between the outline of the first opening and the outer boundary of the first connecting block;
and/or the first electrode block is provided with a second opening capable of accommodating the second connecting block, the shape of the second opening is matched with that of the second connecting block, and a gap is reserved between the contour line of the second opening and the outer boundary line of the second connecting block.
3. The touch-sensitive apparatus of claim 1, further comprising:
an insulating layer disposed on one side surface of the sensing layer,
the first interconnection structure further comprises at least one first wire, the first wire is positioned on one side surface of the insulating layer, which faces away from the sensing layer, one end of each first wire is connected to one first connecting block included in the first interconnection structure through a via, and the other end of each first wire is connected to the first electrode block through a via or connected to the other first connecting block included in the first interconnection structure through a via;
and/or the second interconnection structure further comprises at least one second wire, the second wire is located on one side surface of the insulating layer, which deviates from the sensing layer, one end of each second wire is connected to one of the second connection blocks included in the second interconnection structure through a via hole, and the other end of each second wire is connected to the second electrode block through a via hole or is connected to the other of the second connection blocks included in the second interconnection structure through a via hole.
4. The touch-sensitive apparatus of claim 1, wherein an outer boundary line of each of the first connection blocks comprises at least one broken line segment;
and/or the outer boundary line of each second connecting block comprises at least one broken line segment.
5. The touch-sensitive apparatus of claim 4, wherein the break line segment is a zigzag break line segment.
6. The touch-sensitive apparatus according to claim 1, wherein the first electrode blocks have a diamond shape, a corner of one of the first electrode blocks adjacent to the first electrode block is opposite to and spaced apart from a corner of the other first electrode block,
the second electrode blocks are rhombic, and one corner of one second electrode block and one corner of the other second electrode block in the adjacent second electrode blocks are opposite to and spaced from each other.
7. The touch-sensitive apparatus according to claim 6, wherein centers of a plurality of first electrode blocks connected in series to a same first electrode are collinear to a first extension line, two second electrode blocks that are commonly adjacent to the first electrode block are symmetrically distributed on two sides of the first extension line at each adjacent first electrode block, the adjacent first electrode blocks are electrically connected by at least two sets of the first interconnection structures, and the at least two sets of the first interconnection structures are symmetrically arranged about the first extension line;
and/or the centers of a plurality of second electrode blocks of the same second electrode are connected in series and are collinear with a second extension line, two first electrode blocks which are adjacent to the adjacent second electrode blocks are symmetrically distributed on two sides of the second extension line at each position of the adjacent second electrode blocks, the adjacent second electrode blocks are electrically connected through at least two groups of second interconnection structures, and the at least two groups of second interconnection structures are symmetrically arranged relative to the second extension line.
8. A touch panel comprising the touch sensing device according to any one of claims 1 to 7.
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| CN201910340232.4A CN110058745B (en) | 2019-04-25 | 2019-04-25 | Touch sensing device and touch panel |
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| CN201910340232.4A CN110058745B (en) | 2019-04-25 | 2019-04-25 | Touch sensing device and touch panel |
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| CN104182104A (en) * | 2013-05-27 | 2014-12-03 | 胜华科技股份有限公司 | Touch control panel |
| CN108388368A (en) * | 2018-01-31 | 2018-08-10 | 上海天马微电子有限公司 | Touch display panel and touch display device |
| CN108984048A (en) * | 2017-06-01 | 2018-12-11 | 乐金显示有限公司 | Sensing unit including touch electrode and the display device using the sensing unit |
| CN109669573A (en) * | 2018-12-17 | 2019-04-23 | 上海天马有机发光显示技术有限公司 | Touch-control display panel and touch control display apparatus |
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| KR20150087632A (en) * | 2014-01-22 | 2015-07-30 | 삼성디스플레이 주식회사 | Touch Screen Panel |
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| CN104182104A (en) * | 2013-05-27 | 2014-12-03 | 胜华科技股份有限公司 | Touch control panel |
| CN108984048A (en) * | 2017-06-01 | 2018-12-11 | 乐金显示有限公司 | Sensing unit including touch electrode and the display device using the sensing unit |
| CN108388368A (en) * | 2018-01-31 | 2018-08-10 | 上海天马微电子有限公司 | Touch display panel and touch display device |
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Application publication date: 20190726 Assignee: YUNGU (GU'AN) TECHNOLOGY Co.,Ltd.|BAZHOU YUNGU ELECTRONIC TECHNOLOGY Co.,Ltd.|KUNSHAN NEW FLAT PANEL DISPLAY TECHNOLOGY CENTER Co.,Ltd. Assignor: KUNSHAN GO-VISIONOX OPTO-ELECTRONICS Co.,Ltd. Contract record no.: X2019990000156 Denomination of invention: Touch sensing device and touch panel License type: Common License Record date: 20191030 |
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