CN112817433A - Haptic feedback module and haptic feedback device - Google Patents
Haptic feedback module and haptic feedback device Download PDFInfo
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- CN112817433A CN112817433A CN201911122479.5A CN201911122479A CN112817433A CN 112817433 A CN112817433 A CN 112817433A CN 201911122479 A CN201911122479 A CN 201911122479A CN 112817433 A CN112817433 A CN 112817433A
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- G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
- G06F3/016—Input arrangements with force or tactile feedback as computer generated output to the user
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Abstract
The invention relates to a tactile feedback module and a tactile feedback device, wherein the tactile feedback module comprises a plurality of electrode assemblies which are arranged in a laminated manner, each electrode assembly comprises a substrate, a conducting layer and an elastic layer which are laminated in sequence, and the adjacent two conducting layers are defined as a first conducting layer and a second conducting layer, wherein: the first conducting layer comprises a plurality of first electrodes and a plurality of first electrode leading-out wires, and the first electrode leading-out wires are connected with at least one first electrode; the second conducting layer comprises a plurality of second electrodes and a plurality of second electrode outgoing lines, and part of the second electrode outgoing lines are connected with at least two second electrodes in series; in the first electrodes and the second electrodes which are oppositely arranged, the projection of each first electrode outgoing line on the second electrode is connected with only one second electrode on the same second electrode outgoing line; the first electrode outgoing lines and the second electrode outgoing lines have different input voltages, and the plurality of second electrodes are led out through one second electrode outgoing line, so that the number of the electrode outgoing lines is small, and the arrangement is simple.
Description
Technical Field
The present invention relates to the field of touch technologies, and in particular, to a haptic feedback module and a haptic feedback device.
Background
In touch devices such as touch keyboards, touch steering wheels and touch massage chairs, the touch feedback device comprises a touch feedback module for touch feedback, and the touch feedback is realized through an elastic body, so that the perception of touch is improved, and further the user experience is improved.
The tactile feedback module comprises a plurality of electrode assemblies which are arranged in a laminated mode, each electrode assembly comprises a PET (polyethylene terephthalate) base material, a plurality of electrodes, an elastic base material and an elastic column, the electrodes, the elastic base material and the elastic column are sequentially arranged on the PET base material, and the elastic column is used as an elastic body to achieve tactile feedback; different voltages are applied to the two electrodes of the adjacent electrode assemblies, and the elastic column between the two electrodes is elastically deformed and vibrated by the electric field force generated by the voltage difference, so that the effect of tactile feedback is realized. However, each electrode needs one leading-out electrode wire, and a plurality of electrodes on the same layer need a plurality of leading-out electrode wires, so that the number of leading-out electrode wires is large, the wires are complex, the design difficulty of the leading-out electrode wires is increased, even a short circuit condition may occur, the accuracy of voltage input is small, and the tactile feedback effect is affected.
Disclosure of Invention
In view of the above, it is desirable to provide a haptic feedback module and a haptic feedback device, in which the number of lead-out electrode traces of the haptic feedback module is small and the arrangement is simple.
A tactile feedback module comprises a plurality of electrode assemblies which are arranged in a stacked mode, each electrode assembly comprises a substrate, a conducting layer and an elastic layer which are sequentially stacked, the adjacent two conducting layers are defined as a first conducting layer and a second conducting layer, and the tactile feedback module is characterized in that:
the first conducting layer comprises a plurality of first electrodes and a plurality of first electrode leading-out wires, and the first electrode leading-out wires are connected with at least one first electrode;
the second conducting layer comprises a plurality of second electrodes and a plurality of second electrode outgoing lines, and part of the second electrode outgoing lines are connected with at least two second electrodes in series;
in the first electrode and the second electrode which are oppositely arranged, the projection of each first electrode outgoing line on the second conducting layer is intersected with only one second electrode connected to the same second electrode outgoing line;
the input voltage of the first electrode lead is different from the input voltage of the second electrode lead.
When a user presses downwards by applying force, because the projection of the first electrode outgoing line on the second electrode is only intersected with one second electrode on the same second electrode outgoing line, when the first electrode inputs voltage through the first electrode outgoing line, only the second electrode opposite to the first electrode inputs voltage simultaneously, and the input voltages of the first electrode outgoing line and the second electrode outgoing line are different, so that a voltage difference is formed between the first electrode and the second electrode which are oppositely arranged, an electric field force is generated, and further the elastic layer between the first electrode and the second electrode is elastically deformed, when the user stops applying force, the voltage disappears, the elastic layer returns to the original state, the elastic deformation vibration effect is formed, and the effect of tactile feedback is realized; compared with the electrode assembly in the prior art, as part of the second electrode outgoing lines are connected with at least two second electrodes in series, a plurality of second electrodes are led out through one second electrode outgoing line, so that the number of the electrode outgoing lines is less, the arrangement is simpler, on one hand, materials are saved, the preparation process is simplified, on the other hand, the reliability of input voltage is improved, and the product yield is improved.
In one embodiment, a plurality of the first electrode outgoing lines are arranged in an array, at least one of the first electrode outgoing lines in the plurality of the first electrode outgoing lines is connected in series with the first electrodes in the same row, so that the first electrodes in the same row are led out through one first electrode outgoing line, and the number of the first electrode outgoing lines of the first conductive layer is small.
In one embodiment, a plurality of the first electrode lead-out lines are arranged in parallel to further reduce the number of electrode lead-out lines of the electrode assembly.
In one embodiment, a part of the first electrode lead lines in the plurality of first electrode lead lines are connected in series to the first electrodes in the same row, and another part of the first electrode lead lines are connected in series to the first electrodes in the same column, so that the number of the first electrode lead lines of the first conductive layer is small.
In one embodiment, a part of the first electrode lead lines in the plurality of first electrode lead lines are connected in series to the first electrodes in the same row, and another part of the first electrode lead lines are connected in series to the first electrodes arranged in a staggered manner in the row and column directions, so that the number of the first electrode lead lines of the first conductive layer is small.
In one embodiment, a part of the first electrode lead lines in the plurality of first electrode lead lines are arranged in parallel, the extending direction of the first electrode lead lines forms an included angle of 45 degrees with the row direction of the first conductive layer, and the other part of the first electrode lead lines are connected with one first electrode, so that the number of the first electrode lead lines of the first conductive layer is small.
In one embodiment, a part of the second electrode outgoing lines in the plurality of second electrode outgoing lines are arranged in parallel, the extending direction of the second electrode outgoing lines forms an included angle of 135 degrees with the row direction of the first conductive layer, the other part of the second electrode outgoing lines are connected with one second electrode, and the number of the electrode outgoing lines of the two conductive layers is further reduced by the staggered arrangement of the first electrode outgoing lines and the second electrode outgoing lines.
In one embodiment, a plurality of the second electrode lead-out wires are arranged in parallel, and the number of the electrode lead-out wires of the two conductive layers is further reduced.
In one embodiment, a part of the second electrode lead lines in the plurality of second electrode lead lines are connected in series with the second electrodes in the same column, and another part of the second electrode lead lines are connected in series with the second electrodes in the same row, and the first electrode lead lines and the second electrode lead lines are arranged in a staggered manner, so that the number of the electrode lead lines of the two conductive layers is further reduced.
In one embodiment, a part of the second electrode lead lines in the plurality of second electrode lead lines are connected in series with the second electrodes in the same column, and another part of the second electrode lead lines are connected in series with the second electrodes arranged in a staggered manner in the row and column directions, so as to reduce the number of electrode lead lines of two conductive layers.
In addition, the invention also provides a tactile feedback device which comprises the tactile feedback module in any embodiment.
According to the tactile feedback device, as the part of the second electrode outgoing lines in the tactile feedback module are connected with the at least two second electrodes in series, the plurality of second electrodes are led out through one second electrode outgoing line, so that the number of the electrode outgoing lines of the tactile feedback device with the tactile feedback module is small, and the arrangement of the electrode outgoing lines is simple.
Drawings
FIG. 1 is a schematic cross-sectional view of a haptic feedback module in accordance with the prior art of the present invention;
FIG. 2 is a schematic view illustrating the structure of electrode lead-out wires in an electrode assembly according to the prior art;
FIG. 3 is a schematic diagram of a haptic feedback module in accordance with an embodiment of the present invention;
FIG. 4 is a schematic structural diagram of a two-layer conductive layer according to an embodiment of the present invention;
FIG. 5 is a schematic view of a projection of a first electrode lead on a second conductive layer according to an embodiment of the present invention;
FIG. 6 is a schematic structural diagram of a first electrode lead-out wire according to an embodiment of the present invention;
FIG. 7 is a schematic structural diagram of a first electrode lead-out wire according to another embodiment of the present invention;
FIG. 8 is a schematic structural view of a first electrode lead-out line according to still another embodiment of the present invention;
FIG. 9 is a schematic structural view of a first electrode lead-out wire according to still another embodiment of the present invention;
FIG. 10 is a schematic view of a first electrode lead-out wire according to still another embodiment of the present invention;
FIG. 11 is a schematic structural diagram of a second electrode lead-out wire according to an embodiment of the present invention;
FIG. 12 is a schematic structural view of a second electrode lead-out wire according to another embodiment of the present invention;
FIG. 13 is a schematic structural view of a second electrode lead-out wire according to still another embodiment of the present invention;
fig. 14 is a schematic structural view of a second electrode lead-out wire in still another embodiment of the present invention.
Description of reference numerals:
reference numbers for haptic feedback modules in the prior art:
01-a haptic feedback unit;
010-an electrode assembly;
011-a substrate; 012-an electrode layer; 013-an elastic layer; 014-elastomeric substrate; 015-elastic columns; 016-electrode lead-out wire;
reference numbers for haptic feedback modules in embodiments of the invention:
10-a haptic feedback module;
100-an electrode assembly;
110-a substrate;
120-a conductive layer;
121-a first conductive layer; 122-a second conductive layer; 123-a first electrode; 124-a first electrode lead; 1241-first series line; 1242-first lead-out section; 125-a second electrode; 126-second electrode lead-out; 1261-second series line; 1262-second lead-out section;
130-an elastic layer;
131-an elastic column; 132-an elastomeric substrate.
Detailed Description
In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in detail below. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. This invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein.
It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.
Fig. 1 is a schematic diagram showing a specific structure of a haptic feedback module according to the prior art, and fig. 2 is a schematic diagram showing an arrangement of electrode lead-out lines of the same electrode in fig. 1, where, as shown in fig. 1, the haptic feedback module includes a plurality of haptic feedback units 01 arranged in an array, each haptic feedback unit 01 includes two electrode assemblies 010 arranged in a stack, each electrode assembly 010 includes a base 011, an electrode 012, and an elastic layer 013, each elastic layer 013 includes an elastic base material 014 and an elastic column 015 arranged on the elastic base material 014, the electrode lead-out line 016 leads out the electrode 016 and provides an input voltage, the input voltages of two adjacent electrode lead-out lines 016 are different, so that the adjacent electrodes 012 have a voltage difference to form an electric field force to elastically deform and vibrate the elastic column 015, and thus haptic feedback is achieved, and since each electrode 012 is led out through one electrode lead, the electrodes 012 on the same layer are led out through a plurality of electrode outgoing lines, as shown in fig. 2, a conductive layer 02 formed by arranging 16 electrodes 012 in an array is led out through 16 electrode outgoing lines 016, which results in a large number of electrode outgoing lines 016 and material waste, and the number of the electrode outgoing lines 016 needing to be arranged in a limited space is large, so that the arrangement is complex, on one hand, the difficulty of design is increased, on the other hand, after being folded for many times, the short circuit of the adjacent electrode outgoing lines 016 occurs, which affects voltage input, and the product yield is low. In order to solve the problems, the invention leads out a plurality of electrodes through one electrode lead-out wire so as to reduce the number of the electrode lead-out wires and ensure that the arrangement of the electrode lead-out wires is simpler.
As shown in fig. 3, a tactile feedback module 10 includes a plurality of electrode assemblies 100, the plurality of electrode assemblies 100 are sequentially stacked, the number of the electrode assemblies 100 may be 20-40, and each electrode assembly 100 includes a substrate 110, a conductive layer 120 and an elastic layer 130, and the substrate 110, the conductive layer 120 and the elastic layer 130 are sequentially stacked, and when the tactile feedback module is specifically disposed, the substrate 110 may be made of PI (Polyimide, Polyimide film), TPU (thermoplastic elastomer rubber), PET (Polyethylene terephthalate), and the like, which have high transparency and good bending resistance, but is not limited thereto; the electrode layer 120 is formed on the surface of the substrate 110 by printing, spraying, or the like, and the material of the electrode layer 120 may be a flexible conductive material, such as a conductive cloth, a conductive paste, or the like, so as to improve the bending resistance of the electrode layer 120, but is not limited thereto; the specific structure of the elastic layer 130 may be an elastic column 131 and an elastic column 132, and may also only include the elastic column 132, the elastic layer 130 may be formed on the surface of the electrode layer 120 away from the substrate 110 by stamping, spraying, or the like, the elastic column 130 may be made of a silica gel material with good optical transparency, high structural elasticity, good chemical inertness, and good adhesion, specifically, Polydimethylsiloxane (PDMS) may be selected, and of course, the elastic substrate 110 may also be made of other materials that can meet the needs;
referring also to fig. 4, for convenience of description, two arbitrary adjacent electrode assemblies 100 as shown in fig. 3 and 4 are selected, each electrode assembly 100 includes 16 tactile feedback units arranged in an array for illustration, and two adjacent conductive layers 120 are defined as a first conductive layer 121 and a second conductive layer 122, where:
the first conductive layer 121 includes a plurality of first electrodes 123 and a plurality of first electrode outgoing lines 124, the first electrode outgoing line 124 is connected to at least one first electrode 123 for voltage transmission of the first electrode 123, in a specific arrangement, the first electrode outgoing line 124 may be connected to one electrode 123, and the first electrode outgoing line 124 may also be connected in series with two, three, four or more first electrodes 123;
the second conductive layer 122 includes a plurality of second electrodes 125 and a plurality of second electrode outgoing lines 126, wherein a portion of the second electrode outgoing lines 126 is connected in series with at least two second electrodes 125, in a specific arrangement, the second electrodes 125 are disposed opposite to the first electrodes 123, and the second electrodes 125 and the first electrodes 123 have the same structural characteristics such as size, material, etc., while the second electrode outgoing lines 126 are connected with the second electrodes 125 for voltage transmission of the second electrodes 125, the second electrode outgoing lines 126 may be connected in series with two second electrodes 125, and the second electrode outgoing lines 126 may be connected in series with three, four, or more than four second electrodes 125;
the first electrode 123 and the second electrode 125, which are oppositely arranged, and the substrate 110 and the elastic layer 130 corresponding to the first electrode 123 form a tactile feedback unit, when a user presses the tactile feedback unit, and in order to ensure the accuracy of the tactile feedback, referring to fig. 5, the first electrode outgoing line 124 includes a first serial line 1241 and a first outgoing section 1242, the first serial line 1241 is located between the two first electrodes 123 for serially connecting the two first electrodes 123, the second electrode outgoing line 126 includes a second serial line 1261 and a second outgoing section 1262, the second serial line 1261 is located between the two second electrodes 125 for serially connecting the two second electrodes 125, the projection of the first electrode outgoing line 124 on the second conductive layer 122 intersects with only one second electrode 125 located on the same second electrode outgoing line 126, the projection of the first serial line 1241 led by one tactile feedback unit on the second conductive layer 122 intersects with only one second electrode 125, compared with other second electrodes on the second electrode lead wire 126 on which the second electrode 125 is located, so that when the first electrode lead wire 124 and the second electrode lead wire 126 are simultaneously powered, the first electrode 123 and the second electrode 125 simultaneously input voltage at only one tactile feedback unit;
the input voltage of the first electrode lead 124 is different from the input voltage of the second electrode lead 126, so that the first electrode 123 and the second electrode 125 form a voltage difference, and in a specific arrangement, the input voltages are different, wherein the polarities of the input voltages of the first electrode lead 124 and the second electrode lead 126 are opposite, or the input voltages of the first electrode lead 124 and the second electrode lead 126 are different in the same polarity; it should be noted that the input voltages of the first electrode outgoing lines 123 may be the same for control, or may be different for realizing different touch effects of different tactile feedback units; similarly, the input voltages of the plurality of second electrode lead wires 125 may be the same or different.
In the tactile feedback module 10, when a user presses downward with a force, since the projection of the first electrode lead-out line 124 on the second conductive layer 122 intersects with only one second electrode 125 on the same second electrode lead-out line 126, when a voltage is input to the first electrode 123 through the first electrode lead-out line 124, only the second electrode 125 opposite to the first electrode 123 inputs a voltage at the same time, and the input voltages of the first electrode lead-out line 124 and the second electrode lead-out line 126 are different, so that a voltage difference is formed between the first electrode 123 and the second electrode 125 which are opposite to each other, an electric field force is generated, and further the elastic layer 130 between the first electrode 123 and the second electrode 125 is elastically deformed, and when the force is stopped, the voltage disappears, and the elastic layer 130 returns to its original shape, thereby forming an effect of elastic deformation vibration, and further realizing an effect of tactile feedback; compared with the electrode assembly 100 in the prior art, because part of the second electrode outgoing lines 126 are connected in series with at least two second electrodes 125, the plurality of second electrodes 125 are led out through one second electrode outgoing line 126, and further the number of the electrode outgoing lines is small, and the arrangement is simple, on one hand, the material is saved, the preparation process is simplified, on the other hand, the reliability of the input voltage is improved, and the product yield is improved.
Referring to fig. 6 together, in a preferred embodiment, a plurality of first electrodes 123 are arranged in an array, and correspondingly, a plurality of second electrodes 125 are arranged in the same array, at least one first electrode lead 124 of the plurality of first electrode leads 124 is connected in series to the first electrodes 123 in the same row, at least one first electrode lead 124 includes a first serial line 1241 and a first lead-out section 1242, so that the first electrodes 123 in the same row are connected in series through one first serial line 1241 and led out through the first lead-out section 1242, and at this time, compared with the prior art in which each electrode 012 is led out through one electrode lead 016, the arrangement of the one first electrode lead 124 connected in series to N first electrodes 123 reduces the number of the first conductive layer 121 by at least N-1, thereby enabling the number of first electrode leads 124 of the first conductive layer 121 to be smaller, and of course, when the plurality of first electrodes 123 are arranged in an array, the first electrode leads 124 are not limited to the first electrodes 123 in series in the same row The pole 123 may be in other configurations as needed.
The first conductive layer 121 may be disposed in various ways, and specific ways may include the following ways:
in the first mode, as shown in fig. 7, a plurality of first electrode outgoing lines 124 are arranged in parallel along the row direction X of the first conductive layer 121, all the first outgoing lines 1241 have the same structure and extend in parallel, in the above tactile feedback module 10, four rows of first electrodes 123 are respectively led out through four first electrode outgoing lines 124, each row of first electrode outgoing lines 124 is connected in series with four first electrodes 123, the total number of the first electrode outgoing lines 124 of the first conductive layer 121 is 4, compared with the prior art in which 16 array electrodes 012 require 16 electrode outgoing lines 016 for leading out, the reduction is more obvious, and the arrangement is simpler and easier to implement;
second, as shown in fig. 8, a part of the first electrode lead-out lines 124 of the plurality of first electrode lead-out lines 124 is connected in series to the first electrodes 123 in the same row, and another part of the first electrode lead-out lines 124 is connected in series to the first electrodes 123 in the same column, and the first serial lines 1241 of the two parts have the same structure and the extending directions thereof are perpendicular to each other; in the tactile feedback module 10, two rows of the first electrodes 123 are respectively led out through two first electrode outgoing lines 124, the remaining four rows of the first electrodes 123 are serially connected to the first electrodes 123 in the same row through four first electrode outgoing lines 124, the total number of the first electrode outgoing lines 124 of the first conductive layer 121 is 6, and compared with the prior art in which 16 array electrodes 012 need 16 electrode outgoing lines 016 for leading out, the number of the first electrode outgoing lines 124 is obviously reduced, and the arrangement is relatively simple and easy to implement;
third, as shown in fig. 6, a part of the first electrode lead lines 124 of the plurality of first electrode lead lines 124 are connected in series to the first electrodes 123 located in the same row, and another part of the first electrode lead lines 124 are connected in series to the first electrodes 123 arranged alternately in the row and column directions, the first series lines 1241 of the two parts have different structures, and the extending directions thereof are inclined at a non-right angle to the row direction X of the first conductive layer 121, in the tactile feedback module 10, two rows of the first electrodes 123 are respectively led out through two first electrode lead lines 124, two first electrodes 123 arranged alternately in series through three first electrode lead lines 124 of the remaining two rows of the first electrodes 123 are respectively connected to one second electrode 123 through two second electrode lead lines 124, the total number of the first electrode lead lines 124 of the first conductive layer 121 is 7, compared with the prior art that 16 array electrodes 012 require 16 electrode lead lines 016 to be led out, the obvious reduction is realized, and the arrangement is relatively simple and easy to realize.
In a fourth mode, as shown in fig. 9, a part of the first electrode outgoing lines 124 of the plurality of first electrode outgoing lines 124 are serially connected to the first electrodes 123 in the same row, and another part of the first electrodes 123 are led out from each first electrode outgoing line 124, in the tactile feedback module 10, three first electrodes 123 are respectively led out through three first electrode outgoing lines 124, and the remaining four first electrodes 123 in one row are led out through four first electrode outgoing lines 124, and the total number of the first electrode outgoing lines 124 of the first conductive layer 121 is 7.
Fifth, as shown in fig. 10, a part of the first electrode lead-out lines 124 among the plurality of first electrode lead-out lines 124 are arranged in parallel, the first serial lines 1241 of the part have the same structure and are connected to two first electrodes 123 having an angle of 45 ° with respect to the row direction X of the first conductive layer 121, so that the extending direction of the first electrode lead-out line 124 forms an angle of 45 ° with respect to the row direction X of the first conductive layer 121, and the other part of the first electrode lead-out lines 124 is connected to one first electrode 123; in the tactile feedback module 10, four first electrodes 123 on the diagonal of the array matrix are led out through one first electrode outgoing line 124, the diagonal is taken as a symmetry axis, three first electrodes 123 are led out through one first electrode outgoing line 124, two first electrodes 123 are led out through one first electrode outgoing line 124, one first electrode 123 is led out through one first electrode outgoing line 124, the total number of the first electrode outgoing lines 124 of the first conductive layer 121 is 7, and compared with the prior art in which 16 array electrodes 012 need 16 electrode outgoing lines 016 for leading out, the number of the first electrodes 123 is obviously reduced, and the arrangement is relatively simple and easy to implement.
Of course, the arrangement of the first electrodes 123 in the first conductive layer 121 other than the first electrodes 123 connected in series by the first electrode lead wires 124 is not limited to the staggered arrangement, the serial arrangement in the column direction, and the individual lead wires, and may be a combination of the above-described plural arrangements, or may be another arrangement that can satisfy the requirements.
In order to further reduce the number of the second electrode lead-out lines 126 on the first conductive layer 121, in a preferred embodiment, as shown in fig. 11, a part of the second electrode lead-out lines 126 among the plurality of second electrode lead-out lines 126 is arranged in parallel, and the extending direction of the part of the second serial lines 1261 is the same as the row direction X of the first conductive layer 121, and has an angle of 135 ° with respect to the row direction X of the first conductive layer 121, and two second electrodes 125 connected to the row direction X of the first conductive layer 121 so that the extending direction of the second electrode lead-out line 124 is at an angle of 135 ° with respect to the row direction X of the first conductive layer 121, and the other part of the second electrode lead-out lines 126 is connected to one second electrode 125.
In the tactile feedback module 10, four second electrodes 125 on the diagonal of the array matrix are led out through one second electrode outgoing line 126, the diagonal is taken as a symmetry axis, three second electrodes 125 are led out through one second electrode outgoing line 126, two second electrodes 125 are led out through one second electrode outgoing line 126, one second electrode 125 is led out through one second electrode outgoing line 126, the total number of the second electrode outgoing lines 126 of the first conductive layer 121 is 7, compared with the prior art that 16 array electrodes 012 require 16 electrode outgoing lines 016 to be led out, the number of the second electrode outgoing lines is obviously reduced, and the arrangement is relatively simple and easy to implement; the second conductive layer 122 can be combined with the first conductive layer 121 in the first, second, third, fourth, and fifth modes, and the number of lead-out electrode traces of the two conductive layers 120 is respectively 11 (combined with the first mode), 13 (combined with the second mode), 14 (combined with the third mode), 14 (combined with the fourth mode), and 14 (combined with the fifth mode).
In order to further reduce the number of second electrode lead lines 126 in the first conductive layer 121, in a preferred embodiment, as shown in fig. 12, a plurality of second electrode lead lines 126 are arranged in parallel in the column direction Y of the first conductive layer 121, and all the second lead lines 1261 have the same structure and extend in parallel.
In the tactile feedback module 10, four rows of second electrodes 125 are respectively led out through four second electrode outgoing lines 126, each row of second electrode outgoing lines 126 is connected in series with four second electrodes 125, the total number of the second electrode outgoing lines 126 of the second conductive layer 122 is 4, compared with the prior art that 16 array electrodes 012 require 16 electrode outgoing lines 016 to be led out, the number of the second electrode outgoing lines is more obviously reduced, and the arrangement is simpler and easier to implement; the second conductive layer 122 can be combined with the first conductive layer 121 in the first, third, fourth, and fifth modes, and the number of lead-out electrode traces of the two conductive layers 120 is respectively 8 (combined with the first mode), 11 (combined with the third mode), 11 (combined with the fourth mode), and 11 (combined with the fourth mode).
In order to further reduce the number of the second electrode lead-out lines 126 on the basis of the first conductive layer 121, in a preferred embodiment, as shown in fig. 13, a part of the second electrode lead-out lines 126 of the plurality of second electrode lead-out lines 126 is connected in series to the second electrodes 125 in the same column, another part of the second electrode lead-out lines 126 is connected in series to the second electrodes 125 in the same row, and the second series lines 1261 of the two parts have the same structure and the extending directions thereof are perpendicular to each other.
In the tactile feedback module 10, the four rows of second electrodes 123 are respectively led out through the four second electrode outgoing lines 126, the two second electrodes 125 in the remaining two rows are serially connected to the second electrodes 125 in the same row through the two second electrode outgoing lines 126, the total number of the second electrode outgoing lines 126 of the second conductive layer 122 is 6, and compared with the prior art in which 16 array electrodes 012 need 16 electrode outgoing lines 016 for leading out, the number of the second electrode outgoing lines 126 is obviously reduced, and the arrangement is relatively simple and easy to implement; the second conductive layer 122 can be combined with the first conductive layer 121 in the second, third, fourth, and fifth modes, and the number of lead-out electrode traces of the two conductive layers 120 is 12 (combined with the second mode), 13 (combined with the third mode), 13 (combined with the fourth mode), and 13 (combined with the fourth mode), respectively. It is noted that when the second conductive layer 122 is combined with the second conductive layer 121, the first electrodes 123 in two rows and the same column are disposed opposite to the second electrodes 125 in four columns and the same column.
In order to further reduce the number of the second electrode lead-out lines 126 on the basis of the first conductive layer 121, in a preferred embodiment, as shown in fig. 14, a part of the second electrode lead-out lines 126 among the plurality of second electrode lead-out lines 126 is connected in series to the second electrodes 125 positioned in the same column, and another part of the second electrode lead-out lines 126 is connected in series to the second electrodes 125 arranged alternately in the row and column directions, and the two parts of the second series lines 1261 have different structures and extend at an oblique angle not perpendicular to the row direction X of the first conductive layer 121.
In the tactile feedback module 10, two rows of the second electrodes 125 are respectively led out through two second electrode outgoing lines 126, two second electrodes 125 in the remaining two rows of the second electrodes 125, which are interlaced in series through three second electrode outgoing lines 126, are respectively connected to one second electrode 125 through two second electrode outgoing lines 126, and the total number of the second electrode outgoing lines 126 of the second conductive layer 122 is 7. The second conductive layer 122 can be combined with the first conductive layer 121 in the first, third, fourth, and fifth modes, and the number of lead-out electrode traces of the two conductive layers 120 is respectively 11 (combined with the first mode), 14 (combined with the third mode), 14 (combined with the fourth mode), and 14 (combined with the fourth mode), which significantly reduces the number of lead-out electrode traces, and is relatively simple and easy to implement, compared with the prior art in which each electrode assembly 010 needs 32 lead-out electrodes 016 to be led out. Note that when the second conductive layer 122 is combined with the first conductive layer 121 of the third embodiment, the direction of the second electrode lead line 126 of the second electrodes 125 arranged in series and alternately is different from the direction of the first electrode lead line 124 of the first electrodes 123 arranged in series and alternately.
In addition, the invention also provides a tactile feedback device, which comprises the tactile feedback module 10 of any one of the above embodiments. The tactile feedback device includes, but is not limited to, a notebook computer, a mobile phone, a vehicle-mounted device, a massage chair and other devices requiring tactile feedback. For example, if the haptic feedback device is a notebook computer, the haptic feedback module 10 is the input haptic feedback module 10 of the notebook computer, also referred to as the PC haptic feedback module 10.
In the tactile feedback device, because the part of the second electrode lead-out wires 126 in the tactile feedback module 10 is connected in series with at least two second electrodes 125, so that a plurality of second electrodes 125 are led out through one second electrode lead-out wire 126, the number of the electrode lead-out wires of the tactile feedback device with the tactile feedback module 10 is small, and the arrangement of the electrode lead-out wires is simple.
The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.
The above-mentioned embodiments only express several embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention. Therefore, the protection scope of the present patent shall be subject to the appended claims.
Claims (11)
1. A haptic feedback module comprising a plurality of electrode assemblies arranged in a stacked manner, each of the electrode assemblies comprising a substrate, a conductive layer and an elastic layer, wherein the conductive layers of adjacent layers are defined as a first conductive layer and a second conductive layer, and wherein:
the first conducting layer comprises a plurality of first electrodes and a plurality of first electrode leading-out wires, and the first electrode leading-out wires are connected with at least one first electrode;
the second conducting layer comprises a plurality of second electrodes and a plurality of second electrode outgoing lines, and part of the second electrode outgoing lines are connected with at least two second electrodes in series;
in the first electrode and the second electrode which are oppositely arranged, the projection of each first electrode outgoing line on the second conducting layer is intersected with only one second electrode connected to the same second electrode outgoing line;
the input voltage of the first electrode lead is different from the input voltage of the second electrode lead.
2. A haptic feedback module as recited in claim 1 wherein said plurality of first electrodes are arranged in an array, and at least one of said first electrode leads of said plurality of first electrode leads is connected in series to said first electrodes in a same row.
3. A haptic feedback module as recited in claim 2 wherein a plurality of said first electrode lead-out lines are arranged in parallel.
4. A haptic feedback module as recited in claim 2 wherein a portion of said first electrode leads of said plurality of first electrode leads are connected in series to said first electrodes in a same row and another portion of said first electrode leads are connected in series to said first electrodes in a same column.
5. A haptic feedback module as recited in claim 2 wherein a portion of said first electrode leads of said plurality of first electrode leads are connected in series to said first electrodes in a same row, and another portion of said first electrode leads are connected in series to said first electrodes staggered in a row-column direction.
6. A haptic feedback module as recited in claim 1 wherein a portion of said first electrode leads are disposed in parallel and extend at 45 ° to the row direction of said first conductive layer, and another portion of said first electrode leads are connected to one of said first electrodes.
7. A haptic feedback module according to any of claims 3-6, wherein a portion of the second electrode leads are arranged in parallel and extend at an angle of 135 ° to the row direction of the first conductive layer, and another portion of the second electrode leads are connected to one of the second electrodes.
8. A haptic feedback module as recited in claim 3, 5 or 6 wherein a plurality of said second electrode lead-out lines are arranged in parallel.
9. A haptic feedback module as recited in any of claims 4-6 wherein a portion of said second electrode leads of said plurality of second electrode leads are serially connected to said second electrodes in a same column and another portion of said second electrode leads are serially connected to said second electrodes in a same row.
10. A haptic feedback module according to any of claims 4-6, wherein a portion of the second electrode leads of the plurality of second electrode leads are connected in series to the second electrodes in the same column, and another portion of the second electrode leads are connected in series to the second electrodes staggered in the row-column direction.
11. A haptic feedback device comprising a haptic feedback module as recited in any one of claims 1-10.
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| CN201911122479.5A CN112817433A (en) | 2019-11-15 | 2019-11-15 | Haptic feedback module and haptic feedback device |
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| CN201911122479.5A CN112817433A (en) | 2019-11-15 | 2019-11-15 | Haptic feedback module and haptic feedback device |
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