CN113703596A - Touch screen and electronic equipment - Google Patents
Touch screen and electronic equipment Download PDFInfo
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- CN113703596A CN113703596A CN202010430274.XA CN202010430274A CN113703596A CN 113703596 A CN113703596 A CN 113703596A CN 202010430274 A CN202010430274 A CN 202010430274A CN 113703596 A CN113703596 A CN 113703596A
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- touch
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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
- G06F3/0412—Digitisers structurally integrated in a display
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
- G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
- G06F3/03—Arrangements for converting the position or the displacement of a member into a coded form
- G06F3/041—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means
- G06F3/0416—Control or interface arrangements specially adapted for digitisers
- G06F3/04164—Connections between sensors and controllers, e.g. routing lines between electrodes and connection pads
Abstract
The application provides a touch screen, the touch screen includes: the touch screen comprises a substrate, a touch electrode layer, a first drive IC and a second drive IC, wherein the touch electrode layer is arranged on the substrate; the first drive IC is electrically connected with the first touch electrode through a first channel lead, and the second drive IC is electrically connected with the second touch electrode through a second channel lead; the plurality of first touch electrodes include one or more first adjacent electrodes adjacent to the disposition region of the plurality of second touch electrodes, the plurality of second touch electrodes include one or more second adjacent electrodes adjacent to the disposition region of the plurality of first touch electrodes, the one or more first adjacent electrodes form an adjacent electrode pair with the corresponding second adjacent electrodes, the one or more first adjacent electrodes are further electrically connected to the second drive IC through the first auxiliary lead, and the one or more second adjacent electrodes are further electrically connected to the first drive IC through the second auxiliary lead. The touch sensitivity is improved, and the transition of the transverse coordinate and the longitudinal coordinate is optimized. The application also provides an electronic device.
Description
Technical Field
The application relates to the technical field of touch control, in particular to a touch screen and electronic equipment.
Background
At present, most electronic devices have a touch function, and as the screen of the electronic device is larger and larger, the area of the touch screen is also larger and larger. Generally, the larger the area of the touch screen, the more channels of a touch driving Integrated Circuit (IC) are required. The traditional touch screen adopts the technical scheme of multi-touch drive ICs, but at the electrode intersection controlled by different touch drive ICs, the problems of insufficient touch sensitivity, incoherent report point coordinates and unalignable coordinates can occur.
Disclosure of Invention
The application discloses touch screen can solve the technical problems that touch sensitivity is insufficient, report point coordinates are incoherent, and coordinates cannot be aligned at electrode intersections controlled by different touch drive ICs.
In a first aspect, the present application provides a touch screen, comprising: the touch screen comprises a substrate, a touch electrode layer, a first drive IC and a second drive IC, wherein the touch electrode layer is arranged on the substrate;
the touch electrode layer comprises a plurality of first patterned touch electrodes, a plurality of second patterned touch electrodes, a plurality of first channel leads, a plurality of second channel leads, a first auxiliary lead and a second auxiliary lead, the plurality of second patterned touch electrodes are arranged on one side of the plurality of first patterned touch electrodes, the first drive IC is electrically connected with the plurality of first patterned touch electrodes through the first channel leads, and the second drive IC is electrically connected with the plurality of second patterned touch electrodes through the second channel leads;
the plurality of first touch electrodes include one or more first adjacent electrodes adjacent to the disposition region of the plurality of second touch electrodes, the plurality of second touch electrodes include one or more second adjacent electrodes adjacent to the disposition region of the plurality of first touch electrodes, the one or more first adjacent electrodes form an adjacent electrode pair with a corresponding second adjacent electrode, the one or more first adjacent electrodes are further electrically connected to the second drive IC through the first auxiliary lead, and the one or more second adjacent electrodes are further electrically connected to the first drive IC through the second auxiliary lead.
The first drive IC and the second drive IC simultaneously detect the adjacent electrode pair, so that the detectable sensing area is increased, and the touch sensitivity is improved. Meanwhile, the first drive IC and the second drive IC coordinate and calibrate the coordinates of the adjacent electrode pair through electric signals transmitted by the first auxiliary lead and the second auxiliary lead, transition of transverse coordinates is optimized according to gradual change of the first adjacent electrode and the second adjacent electrode, and transition of longitudinal coordinates is optimized according to induction quantity comparison of the first adjacent electrode and the second adjacent electrode.
In a second aspect, the present application further provides a touch screen, including: the touch screen comprises a first touch electrode, a second touch electrode, a first drive IC and a second drive IC, wherein the first drive IC is electrically connected with the first touch electrode, the second drive IC is electrically connected with the second touch electrode, and the touch screen further comprises a common electrode which is simultaneously electrically connected with the first drive IC and the second drive IC.
In a third aspect, the present application further provides an electronic device, where the electronic device includes a housing and the touch screen in the first and second aspects, and the housing is used for bearing the touch screen.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings required to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and it is obvious for a person skilled in the art to obtain other drawings based on the drawings without any inventive exercise.
Fig. 1 is a schematic top view of a touch screen according to a first embodiment of the present disclosure.
Fig. 2 is a partially enlarged schematic view of a dashed box a in fig. 1.
Fig. 3 is a partially enlarged schematic view of a touch screen according to an embodiment of the present application.
Fig. 4 is a partially enlarged schematic view of a touch screen according to an embodiment of the present application.
Fig. 5 is a partially enlarged schematic view of a touch screen according to an embodiment of the present application.
Fig. 6 is a schematic top view of a touch screen according to an embodiment of the present disclosure.
Fig. 7 is a schematic top view of a touch screen according to an embodiment of the present disclosure.
Fig. 8 is a partially enlarged view of a dotted frame B in fig. 7.
Fig. 9 is a schematic top view of a touch screen according to an embodiment of the present application.
Fig. 10 is a schematic view of an electronic device according to an embodiment of the present application.
Detailed Description
The technical solutions in the embodiments of the present application will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present application, and it is obvious that the described embodiments are only some embodiments of the present application, not all embodiments. All other embodiments obtained by a person of ordinary skill in the art without any inventive work based on the embodiments in the present application are within the scope of protection of the present application.
It should be noted that the present application establishes a rectangular coordinate system to define the touch coordinate points, i.e., an X-Y coordinate system. The description of a coordinate point appearing in the present application can be interpreted as a coordinate having two numerical values of (X, Y). It is to be understood that the present application does not impose any limitation on the type of coordinate system established, as long as the representation of the touch coordinate points is not affected.
Fig. 1 and fig. 2 are combined, and fig. 1 is a schematic top view of a touch screen according to a first embodiment of the present application; fig. 2 is a partially enlarged schematic view of a dashed box a in fig. 1. The touch screen 1 includes: the touch screen includes a substrate 11, a touch electrode layer 12, a first driving IC13, and a second driving IC 14. The touch electrode layer 12 is disposed on the substrate 11. The touch electrode layer 12 includes a plurality of patterned first touch electrodes 121, a plurality of patterned second touch electrodes 122, a plurality of patterned first channel leads 123, a plurality of patterned second channel leads 124, a first auxiliary lead 125, and a second auxiliary lead 126. The plurality of second touch electrodes 122 are disposed at one side of the plurality of first touch electrodes 121, the first driving IC13 is electrically connected with the plurality of first touch electrodes 121 through the first channel wire 123, and the second driving IC14 is electrically connected with the plurality of second touch electrodes 122 through the second channel wire 124. The plurality of first touch electrodes 121 include one or more first adjacent electrodes 1211 adjacent to the disposition area of the plurality of second touch electrodes 122. The plurality of second touch electrodes 122 includes one or more second adjoining electrodes 1221 adjoining the arrangement region of the plurality of first touch electrodes 121. The one or more first adjacent electrodes 1211 and the corresponding second adjacent electrodes 1221 form an adjacent electrode pair, the one or more first adjacent electrodes 1211 is further electrically connected to the second driving IC14 through the first auxiliary lead 125, and the one or more second adjacent electrodes 1221 is further electrically connected to the first driving IC13 through the second auxiliary lead 126.
Specifically, a rectangular coordinate system is established as shown in fig. 1, with the X-axis direction facing to the right and the Y-axis direction facing downward. The coordinates of different touch points may be represented as (x1, y1), (x1, y2), (x2, y3), etc., according to the difference of the corner marks.
Specifically, the ellipses in fig. 1 indicate that the touch electrode layer 12 may have a pattern structure of two rows or more, and this application is only illustrated in fig. 1 as an example, and does not indicate that the number of the pattern rows of the touch electrode layer 12 is limited. In this embodiment, the plurality of first touch electrodes 121 are disposed on the substrate 11 at intervals in a matrix form, and geometric centers of the plurality of first touch electrodes 121 in a same row and a same column of the matrix are on a same straight line. The plurality of second touch electrodes 122 are disposed at intervals in a matrix on one side of the plurality of first touch electrodes 121, and geometric centers of the plurality of second touch electrodes 122 in a same row and a same column of the matrix are in a same straight line. Geometric centers of the plurality of first touch electrodes 121 and the plurality of second touch electrodes 122 on the same row of the matrix are on the same straight line. In other possible embodiments, the first touch electrodes 121 and the second touch electrodes 122 may also be disposed on the substrate 11 in other forms, which is not limited in this application.
Specifically, the first touch electrode 121 performs signal interaction with the first driving IC13 through the first channel lead 123, and the second touch electrode 122 performs signal interaction with the second driving IC14 through the second channel lead 124. For example, when the first and second touch electrodes 121 and 122 are touched, the first touch electrode 121 transmits an electrical signal to the first driving IC13 through the first channel wire 123, the second touch electrode 122 transmits an electrical signal to the second driving IC14 through the second channel wire 124, and the first and second driving ICs 13 and 14 may calculate specific coordinates of a touched point according to the transmitted electrical signals.
Specifically, as shown in fig. 2, the number of the first adjacent electrodes 1211 and the second adjacent electrodes 1221 is one. The touch electrodes adjacent to the first adjacent electrode 1211 are the first touch electrode 121 and the second adjacent electrode 1221, and the touch electrodes adjacent to the second adjacent electrode 1221 are the second touch electrode 121 and the first adjacent electrode 1221. The first adjacent electrode 1211 is close to the second adjacent electrode 1221 and is disposed in a central symmetry manner to form an adjacent electrode pair. It is understood that the first adjacent electrode 1211 is also electrically connected to the first driving IC13 through the first channel wire 123, and the second adjacent electrode 1221 is also electrically connected to the second driving IC14 through the second channel wire 124. That is, the first adjacent electrode 1211 and the second channel wire 124 are simultaneously electrically connected to the first driving IC13 and the second driving IC 14. The first driving IC13 can simultaneously receive the electric signals transmitted by the first touch electrode 121 and the second adjacent electrode 1221, and the second driving IC14 can simultaneously receive the electric signals transmitted by the second touch electrode 122 and the first adjacent electrode 1211.
It can be understood that, in the present embodiment, the first driving IC13 and the second driving IC14 detect the adjacent electrode pair simultaneously, so that the detectable sensing area is increased, and the touch sensitivity is improved. Meanwhile, the first driving IC13 and the second driving IC14 coordinate the adjacent electrode pair by the electric signals transmitted through the first auxiliary lead 125 and the second auxiliary lead 126, optimize the transition of the lateral coordinate according to the gradual change of the first adjacent electrode 1211 and the second adjacent electrode 1221, and optimize the transition of the longitudinal coordinate according to the comparison of the induction quantities of the first adjacent electrode 1211 and the second adjacent electrode 1221.
In one possible embodiment, the first adjacent electrode 1211 and the second adjacent electrode 1221 of the adjacent electrode pair are spaced and insulated from each other, and the distance between the first adjacent electrode 1211 and the second adjacent electrode 1221 of the adjacent electrode pair is smaller than a preset threshold.
Generally, the touch screen 1 is used to detect a touch point of a finger or a capacitive pen. In this embodiment, the preset threshold may be a width of a finger or a capacitive pen on a plane where the adjacent electrode pair is located. In other possible embodiments, the preset threshold may be other values as long as the detection of the touch point by the adjacent electrode pair is not affected. It can be understood that the smaller the distance between the first adjacent electrode 1211 and the second adjacent electrode 1221 is, the larger the area that the adjacent electrode pair can sense is, the smaller the invalid touch area is, and the better the sensing effect is. In one possible embodiment, when the first adjacent electrode 1211 senses a touch operation, a touch signal generated by the touch operation is simultaneously transmitted to the first and second driving ICs 13 and 14 through the first adjacent electrode 1211.
Specifically, the first and second driving ICs 13 and 14 may determine a final touch coordinate point according to the touch signal. It is understood that when the second adjacent electrode 1221 senses a touch operation, a touch signal generated by the touch operation may also be simultaneously transmitted to the first and second driving ICs 13 and 14 through the second adjacent electrode 1221.
In one possible embodiment, when a touch operation is sensed by an adjacent electrode pair, the first driving IC13 determines a first coordinate of the touch operation through the first channel wire 123 and the second auxiliary wire 126 connected to the adjacent electrode pair, and the second driving IC14 determines a second coordinate of the touch operation through the second channel wire 124 and the first auxiliary wire 125 connected to the adjacent electrode pair. The first and second drive ICs 13 and 14 determine target coordinates of the touch operation according to the first and second coordinates.
Specifically, the electrical signals transmitted by the first channel lead 123 and the second auxiliary lead 126 include the first coordinate information, and the electrical signals transmitted by the second channel lead 124 and the first auxiliary lead 125 include the second coordinate information.
In a possible embodiment, the target coordinate is an average of the first coordinate and the second coordinate.
It is understood that the target coordinate of the touch operation should be a coordinate value. In general, the geometric centers of the first adjacent electrode 1211 and the second adjacent electrode 1221 are on the same straight line, so the Y-axis coordinates of the target coordinates should be the same. In order to compensate for an error caused by the setting, in this embodiment, the target coordinate is an average value of the first coordinate and the second coordinate.
Specifically, when the Y-axis coordinate of the target coordinate is determined, for example, the first coordinate is (50,70) and the second coordinate is (50,80), and it is understood that an error occurs between the first coordinate and the Y-axis coordinate of the second coordinate, the target coordinate is (50,75) when an average value of the Y-axis coordinates of the first coordinate and the second coordinate is (70+80)/2 ═ 75. Similarly, when the X-axis coordinate of the target coordinate is determined, the X-axis coordinate of the first coordinate and the X-axis coordinate of the second coordinate may be determined by averaging. It is to be understood that, since the first adjacent electrode 1211 is spaced apart from the second adjacent electrode 1221 in the adjacent electrode pair, the target coordinate may be an average value of the first coordinate and the second coordinate in order to compensate for an error caused by the arrangement.
It is to be understood that the present application is not limited to the method for determining the target coordinate according to the first coordinate and the second coordinate, as long as the method does not affect the correct detection of the target coordinate.
In one possible embodiment, when the first touch electrode 121 or the second touch electrode 122 senses the coordinates of the other touch operation, the first driving IC13 or the second driving IC14 corrects the coordinates of the other touch operation according to a difference between the target coordinates and the first coordinates or the second coordinates.
Specifically, when the X-axis coordinate of the other touch operation is corrected, for example, if the first coordinate is (50,60), the second coordinate is (55,60), and the target coordinate is (53,60), the difference between the target coordinate and the X-axis coordinate of the first coordinate is 3. Since the first coordinate is determined by the first drive IC13, the coordinate of the other touch operation sensed by the first touch electrode 121 electrically connected to the first drive IC13 may be corrected according to the difference. In this embodiment, the first drive IC13 adds the difference value 3 to the X-axis coordinate of the other touch operation to correct the coordinate of the other touch operation. For example, if the coordinates of the other touch operation are (40,30), the coordinates of the other touch operation after the correction are (43, 30). The difference between the target coordinate and the X-axis coordinate of the second coordinate is-2, and similarly, since the second coordinate is determined by the second driving IC14, the X-axis coordinate of the other touch operation sensed by the second touch electrode 122 electrically connected to the second driving IC14 can be corrected according to the difference. In this embodiment, the second drive IC14 adds the difference value-2 to the coordinates of the other touch operation to correct the coordinates of the other touch operation. For example, if the coordinate of the other touch operation is (20,30), the corrected coordinate of the other touch operation is (18, 30). Similarly, when the Y-axis coordinate of the other touch operation is corrected, the Y-axis coordinate of the other touch operation may be corrected according to a difference between the target coordinate and the Y-axis coordinate of the first coordinate or the second coordinate.
It is to be understood that, as long as the first driving IC13 and the second driving IC14 are not affected to correct the coordinates of the other touch operations according to the difference between the target coordinates and the first coordinates or the second coordinates, the present application does not impose any limitation on the way in which the first driving IC13 and the second driving IC14 correct the coordinates of the other touch operations.
It can be understood that, by the first and second driver ICs 13 and 14 correcting the coordinates of the other touch operation according to the difference between the target coordinates and the first or second coordinates, the transition of coordinates is optimized, so that the coordinates of the other touch operation and the target coordinates are maintained in the same coordinate system, and the touch detection accuracy is improved.
In one possible embodiment, referring to fig. 2 again, in the adjacent electrode pair, the width of the first adjacent electrode 1211 gradually increases along the first direction D1, and the width of the second adjacent electrode 1221 gradually decreases along the first direction D1.
Specifically, in the present embodiment, a right triangle in which the first adjacent electrode 1211 and the second adjacent electrode 1221 are in opposite directions is taken as an example for illustration, and the shape of the first adjacent electrode 1211 and the second adjacent electrode 1221 is not limited by the present application.
For example, in another possible embodiment, please refer to fig. 3, and fig. 3 is a partially enlarged schematic view of a touch screen according to an embodiment of the present application. Specifically, as shown in fig. 3, the first adjacent electrode 1211 and the second adjacent electrode 1221 have a trapezoidal shape. Similarly, the first adjacent electrode 1211 and the second adjacent electrode 1221 are arranged in a central symmetry, and the trapezoidal oblique side of the first adjacent electrode 1211 is opposite to the trapezoidal oblique side of the second adjacent electrode 1221, thereby forming an adjacent electrode pair.
For another example, please refer to fig. 4 in another possible embodiment, and fig. 4 is a schematic partial enlarged view of a touch screen according to an embodiment of the present application. Specifically, as shown in fig. 4, the first adjacent electrode 1211 is trapezoidal, the second adjacent electrode 1221 is triangular, and the hypotenuse of the trapezoidal shape of the first adjacent electrode 1211 is opposite to the hypotenuse of the triangular shape of the second adjacent electrode 1221, thereby forming an adjacent electrode pair.
Optionally, the first adjacent electrode 1211 and the second adjacent electrode 1221 are arranged in a central symmetry manner, so that a coordinate point of a touch operation is determined by a ratio of sensing areas of the first adjacent electrode 1211 and the second adjacent electrode 1221. .
Specifically, in the present embodiment, the maximum width of the first adjacent electrode 1211 in the X-axis direction should be less than or equal to the width threshold. It is understood that if the width of the first adjacent electrode 1211 in the X-axis direction is too large, the second adjacent electrode 1221 corresponding to the first adjacent electrode 1211 cannot sense a touch operation. Similarly, the maximum width of the second adjacent electrode 1221 in the X-axis direction should be less than or equal to the width threshold.
In one possible embodiment, when a touch operation is sensed by an adjacent electrode pair, the first driver IC13 determines a first coordinate by a touch area ratio of the first adjacent electrode 1211 and the second adjacent electrode 1221 of the touch operation in the adjacent electrode pair. The second drive IC14 determines a second coordinate by a touch area ratio of the first adjacent electrode 1211 and the second adjacent electrode 1221 of the touch operation in the one adjacent electrode pair.
Specifically, in the same adjacent electrode pair, since the area ratio of different positions in the Y-axis direction of the first adjacent electrode 1211 and the second adjacent electrode 1221 is different, the specific Y-axis coordinate of the first coordinate may be determined according to the touch area ratio of the first adjacent electrode 1211 to the second adjacent electrode 1221. For example, if the first driving IC13 detects that the touch area ratio of the first adjacent electrode 1211 to the second adjacent electrode 1221 is 1:2, the first coordinate may be (x1, y 1). The second driving IC14 detects that the touch area ratio of the first adjacent electrode 1211 to the second adjacent electrode 1221 is 1:3, then the second coordinate may be (x1, y2) and the ratio of y1 to y2 is 2:3, that is, the ratio of the area ratio detected by the second driving IC14 to the area ratio detected by the first driving IC 13.
In a possible embodiment, please refer to fig. 1 and fig. 5 together, and fig. 5 is a partially enlarged schematic view of a touch screen according to an embodiment of the present disclosure. The touch electrode layer 12 further includes a plurality of third touch electrodes 127 and a plurality of fourth touch electrodes 128. The plurality of third touch electrodes 127 and the plurality of first touch electrodes 121 form sensing electrode pairs one by one, and the plurality of fourth touch electrodes 128 and the plurality of second touch electrodes 122 form sensing electrode pairs one by one. The first driving IC13 and the plurality of third touch electrodes 127 are electrically connected through the first channel wiring 123, and the second driving IC14 and the plurality of fourth touch electrodes 128 are electrically connected through the second channel wiring 124.
Specifically, in this embodiment, the touch screen 1 adopts a mutual capacitance type capacitive touch detection technology. The plurality of first touch electrodes 121 and the plurality of third touch electrodes 127 are arranged at intervals in an insulating manner, and a distance between the first touch electrode 121 and the third touch electrode 127 in the sensing electrode pair is smaller than a preset threshold value. The plurality of second touch electrodes 122 and the plurality of fourth touch electrodes 128 are arranged at intervals in an insulating manner, and the distance between the second touch electrode 122 and the fourth touch electrode 128 in the sensing electrode pair is smaller than a preset threshold value.
It is understood that, when the pair of sensing electrodes detects other touch operations, the preset threshold may be a width of a finger or a capacitive pen on a plane where the pair of adjacent electrodes is located. In other possible embodiments, the preset threshold may be other values as long as the sensing electrode pair does not affect the detection of the touch point. It can be understood that the smaller the distance between the first touch electrode 121 and the third touch electrode 127, or the smaller the distance between the second touch electrode 122 and the fourth touch electrode 128, the larger the area that can be sensed by the adjacent electrode pair, the better the sensing effect.
Specifically, in the present embodiment, the maximum width of the first touch electrode 121 in the X-axis direction should be less than or equal to the width threshold. It can be understood that if the width of the first touch electrode 121 along the X-axis direction is too large, the third touch electrode 127 corresponding to the first touch electrode 121 cannot sense a touch operation. Similarly, the maximum width of the third touch electrode 127, the second touch electrode 122 and the fourth touch electrode 128 in the X-axis direction should be less than or equal to the width threshold.
In one possible embodiment, referring to fig. 5 again, in the pair of sensing electrodes connected to the first driving IC13, the width of the first touch electrode 121 in the first direction D1 is gradually increased, and the width of the third touch electrode 127 in the first direction D1 is gradually decreased. In the pair of sensing electrodes connected to the second driving IC14, the width of the second touch electrode 122 in the second direction D2 is gradually increased, and the width of the fourth touch electrode 128 in the second direction D2 is gradually decreased. Wherein the first direction D1 is opposite to the second direction D2.
Specifically, in this embodiment, the first touch electrode 121 and the third touch electrode 127 are right triangles with opposite directions, and the second touch electrode 122 and the fourth touch electrode 128 are right triangles with opposite directions, which are taken as an example for illustration, and the shapes of the first touch electrode 121, the second touch electrode 122, the third touch electrode 127 and the fourth touch electrode 128 are not limited in this application.
In one possible embodiment, when a touch operation is sensed by a sensing electrode pair, the first driving IC13 determines coordinates of the touch operation through a touch area ratio of the first touch electrode 121 and the third touch electrode 127 in the sensing electrode pair, or the second driving IC14 determines coordinates of the touch operation through a touch area ratio of the second touch electrode 122 and the fourth touch electrode 128 in the sensing electrode pair.
Specifically, in the same sensing electrode pair, since the area ratio of different positions in the Y-axis direction of the first touch electrode 121 and the third touch electrode 127 is different, the specific Y-axis coordinate of the first coordinate may be determined according to the touch area ratio of the first touch electrode 121 and the third touch electrode 127. For example, if the first driving IC13 detects that the touch area ratio of the first touch electrode 121 and the third touch electrode 127 is 1:4, the first coordinate may be (x2, y 3). If the second driving IC14 detects that the touch area ratio of the first touch electrode 121 and the third touch electrode 127 is 1:5, the second coordinate may be (x2, y4) and the ratio of y3 to y4 is 4:5, that is, the ratio of the area ratio detected by the second driving IC14 to the area ratio detected by the first driving IC 13. Similarly, the manner of determining the coordinates of the touch operation according to the area ratio of the second touch electrode 122 to the fourth touch electrode 128 is similar, and is not repeated here.
In a possible embodiment, in the sensing electrode pair connected to the first driving IC13, the first touch electrode 121 and the third touch electrode 127 are arranged in a central symmetry manner. In the pair of sensing electrodes connected to the second driving IC14, the second touch electrode 122 and the fourth touch electrode 128 are arranged in a central symmetry manner.
Specifically, in the present embodiment, a right triangle in which the first touch electrode 121 and the third touch electrode 127 are opposite to each other and the second touch electrode 122 and the fourth touch electrode 128 are opposite to each other is taken as an example for illustration, which does not represent that the shape of the first touch electrode 121, the third touch electrode 127, the second touch electrode 122 and the fourth touch electrode 128 is limited in the present application, please refer to the example in fig. 5 and fig. 6 again, and details thereof are not repeated.
Optionally, the first touch electrode 121 and the third touch electrode 127 are arranged in a central symmetry manner, so that a coordinate point of a touch operation is determined by a sensing area ratio of the first touch electrode 121 to the third touch electrode 127. Similarly, the second touch electrode 122 and the fourth touch electrode 128 are arranged in a central symmetry manner.
In a possible embodiment, please refer to fig. 2 and fig. 6 together, and fig. 6 is a schematic top view of a touch screen according to an embodiment of the present disclosure. The touch electrode layer 12 includes a first region 15, a second region 16, and an interface region 17 connecting the first region 15 and the second region 16. The plurality of first touch electrodes 121 and the plurality of third touch electrodes 127 are disposed in the first region 15, and the plurality of second touch electrodes 122 and the plurality of fourth touch electrodes 128 are disposed in the second region 16. The one or more first adjacent electrodes 1211 and the one or more second adjacent electrodes 1221 are disposed within the interface region 17.
Specifically, the first driving IC13 is electrically connected to the first touch electrode 121 and the third touch electrode 127 of the first area 15, and the second driving IC14 is electrically connected to the second touch electrode 122 and the fourth touch electrode 128 of the second area 16. The first touch electrode 121 and the third touch electrode 127 form a sensing electrode pair, and the second touch electrode 122 and the fourth touch electrode 128 form a sensing electrode pair. The first driving IC13 is further electrically connected to the second adjacent electrode 1221 of the boundary region 17, and the second driving IC14 is further electrically connected to the first adjacent electrode 1211 of the boundary region 17. A single corresponding one of the first adjacent electrodes 1211 and a single corresponding one of the second adjacent electrodes 1221 form an adjacent electrode pair. Please refer to the above description for the sensing electrode pair and the adjacent electrode pair, which are not described herein again.
In a possible embodiment, referring to fig. 6, the boundary area 17 partially overlaps the first area 15 and the second area 16, respectively.
Specifically, the boundary region 17 partially overlaps the first region 15 and the second region 16, respectively. It is understood that, in one embodiment, a sensing electrode pair formed by the first adjacent electrode 1211 and the first touch electrode 121 and a sensing electrode pair formed by the second touch electrode 122 and the second adjacent electrode 1221 are disposed in the boundary region 17. In other embodiments, the first touch electrode 121 and/or the second touch electrode 122 are partially disposed in the interface region 17.
Alternatively, only the first adjacent electrode 1211 and the second adjacent electrode 1221 may be provided in the boundary region 17.
In a possible embodiment, please refer to fig. 7 and 8 together, fig. 7 is a schematic top view of a touch screen according to an embodiment of the present disclosure; fig. 8 is a partially enlarged view of a dotted frame B in fig. 7. The first adjacent electrode 1211 and the second adjacent electrode 1221 in the adjacent electrode pair are embedded in each other and are insulated from each other.
Specifically, the first adjacent electrode 1211 is electrically connected to the second driving IC14 through the first auxiliary lead 125, and the second adjacent electrode 1221 is electrically connected to the first driving IC13 through the second auxiliary lead 126. Please refer to the above description for the first adjacent electrode 1211 and the second adjacent electrode 1221, which are not described herein again. It should be understood that the present application is illustrated by way of example of embedding the first adjacent electrode 1211 and the second adjacent electrode 1221 shown in fig. 7, and does not represent that the present application limits the embedding manner of the first adjacent electrode 1211 and the second adjacent electrode 1221.
Specifically, the first adjacent electrode 1211 and the second adjacent electrode 1221 may be filled with an insulating material therebetween to achieve a mutually insulated arrangement. In other possible embodiments, the first adjacent electrode 1211 and the second adjacent electrode 1221 may be arranged to be insulated from each other by a gap. The present application does not limit the manner of the insulating arrangement as long as the mutual insulating arrangement between the first adjacent electrode 1211 and the second adjacent electrode 1221 is not affected.
In one possible embodiment, referring again to fig. 8, the first adjacent electrode 1211 includes a first main body portion 1212 and a plurality of first extending portions 1213. The plurality of first extending portions 1213 extend from the first main body portion 1212 to the second adjacent electrode 1221, and the plurality of first extending portions 1213 are disposed at intervals on a side of the first main body portion 1212 close to the second adjacent electrode 1221. The second adjacent electrode 1221 includes a second main body portion 1222 and a plurality of second extension portions 1223. The second extending portions 1223 extend from the second main body portion 1222 in a direction of the first adjacent electrode 1211, and the second extending portions 1223 are spaced apart from each other on a side of the second main body portion 1222 adjacent to the first adjacent electrode 1211. The plurality of first extensions 1213 and the plurality of second extensions 1223 are engaged with each other.
Optionally, a first gap 1214 is formed between two adjacent first extension portions 1213, a second gap 1224 is formed between two adjacent second extension portions 1223, each first extension portion 1213 is received in the corresponding second gap 1224, and each second extension portion 1223 is received in the corresponding first gap 1214. It is understood that in other embodiments, not every first extension 1213 is received within the second gap 1224, nor every second extension 1223 is received within the first gap 1214. For example, the second extending portion 1223 positioned at the top is not accommodated in the first gap 1214, and the first extending portion 1213 positioned at the bottom is not accommodated in the second gap 1224. When the first adjacent electrode 1211 has the first extending portions 1213 greater than 2 in number and the second adjacent electrode 1221 has the second extending portions 1223 greater than 2 in number, the first adjacent electrode 1211 and the second adjacent electrode 1221 may further include gaps greater than 2 in number.
Specifically, in this embodiment, the first adjacent electrode 1211 and the second adjacent electrode 1221 sense whether there is a touch operation in the area, so as to determine the coordinate position of the touch operation. When only the first adjacent electrode 1211 or the second adjacent electrode 1221 senses a touch operation, a coordinate position indicating the touch operation is not at the engagement of the first adjacent electrode 1211 and the second adjacent electrode 1221.
In a possible embodiment, the shape of the first extension 1213 and the second extension 1223 may also be one or more of triangular, trapezoidal, rectangular, circular, elliptical, polygonal.
Fig. 9 is a schematic top view of a touch screen 1 according to an embodiment of the present application. The touch screen 1 includes: the touch screen comprises a substrate 11 and a touch electrode layer 12, wherein the touch electrode layer 12 comprises a first touch electrode 121, a second touch electrode 122, a first driving IC13 and a second driving IC 14. The first driving IC13 is electrically connected to the first touch electrode 121, the second driving IC14 is electrically connected to the second touch electrode 122, and the touch electrode layer 12 further includes a common electrode 129 electrically connected to both the first driving IC13 and the second driving IC 14.
Please refer to the above description for the relationship among the first touch electrode 121, the second touch electrode 122, the driving IC13, and the driving IC14, which is not described herein again.
The common electrode 129 is disposed between the first touch electrodes 121 and the second touch electrodes 122. In one embodiment, the common electrode 129 is disposed in the boundary region 17 (see fig. 6). The common electrode 129 may be one or more. For example, when the plurality of first touch electrodes 121 are arranged in a row-column array, the plurality of second touch electrodes 122 are arranged in a row-column array, and the common electrode 129 is a column or a row between the arrangement array of the plurality of first touch electrodes 121 and the arrangement array of the plurality of second touch electrodes 122.
Specifically, when the common electrode 129 senses a touch operation, the common electrode 129 may simultaneously transmit a touch signal generated by the touch operation to the first driving IC13 and the second driving IC 14. It can be appreciated that the common electrode 129 improves the touch sensitivity at the interval between the first touch electrode 121 and the second touch electrode 122, optimizing the transition between the horizontal coordinate and the vertical coordinate.
Fig. 10 shows an electronic device 2, and fig. 10 is a schematic diagram of the electronic device according to an embodiment of the present application. The electronic device 2 comprises a housing 21 and the touch screen 1, wherein the housing 21 is used for bearing the touch screen 1. Specifically, please refer to the above description for the touch screen 1, which is not described herein again.
The principle and the implementation of the present application are explained herein by applying specific examples, and the above description of the embodiments is only used to help understand the core idea of the present application; meanwhile, for a person skilled in the art, according to the idea of the present application, there may be variations in the specific embodiments and the application scope, and in summary, the content of the present specification should not be construed as a limitation to the present application.
Claims (22)
1. A touch screen, characterized in that the touch screen comprises: the touch screen comprises a substrate, a touch electrode layer, a first drive IC and a second drive IC, wherein the touch electrode layer is arranged on the substrate;
the touch electrode layer comprises a plurality of first patterned touch electrodes, a plurality of second patterned touch electrodes, a plurality of first channel leads, a plurality of second channel leads, a first auxiliary lead and a second auxiliary lead, the plurality of second patterned touch electrodes are arranged on one side of the plurality of first patterned touch electrodes, the first drive IC is electrically connected with the plurality of first patterned touch electrodes through the first channel leads, and the second drive IC is electrically connected with the plurality of second patterned touch electrodes through the second channel leads;
the plurality of first touch electrodes include one or more first adjacent electrodes adjacent to the disposition region of the plurality of second touch electrodes, the plurality of second touch electrodes include one or more second adjacent electrodes adjacent to the disposition region of the plurality of first touch electrodes, the one or more first adjacent electrodes form an adjacent electrode pair with a corresponding second adjacent electrode, the one or more first adjacent electrodes are further electrically connected to the second drive IC through the first auxiliary lead, and the one or more second adjacent electrodes are further electrically connected to the first drive IC through the second auxiliary lead.
2. The touch screen of claim 1, wherein a first adjacent electrode of the pair of adjacent electrodes is disposed at an inter-electrode isolation edge from a second adjacent electrode of the pair of adjacent electrodes, and wherein a distance between the first adjacent electrode and the second adjacent electrode of the pair of adjacent electrodes is less than a preset threshold.
3. The touch screen according to claim 2, wherein when a touch operation is sensed by the first adjacent electrode, a touch signal generated by the touch operation is simultaneously transmitted to the first and second driving ICs via the first adjacent electrode.
4. The touch screen of claim 2, wherein when a touch operation is sensed by a pair of adjacent electrodes, the first driver IC determines a first coordinate of the touch operation through the first channel lead and the second auxiliary lead connected to the pair of adjacent electrodes, the second driver IC determines a second coordinate of the touch operation through the second channel lead and the first auxiliary lead connected to the pair of adjacent electrodes, and the first driver IC and the second driver IC determine a target coordinate of the touch operation according to the first coordinate and the second coordinate.
5. The touch screen of claim 4, wherein the target coordinate is an average of the first coordinate and the second coordinate.
6. The touch screen according to claim 5, wherein when the first touch electrode or the second touch electrode senses coordinates of other touch operations, the first drive IC or the second drive IC corrects the coordinates of the other touch operations according to a difference between the target coordinates and the first coordinates or the second coordinates.
7. The touch screen of claim 2, wherein in the pair of adjacent electrodes, the first adjacent electrode has a width in a first direction that gradually increases and the second adjacent electrode has a width in the first direction that gradually decreases.
8. The touch screen according to claim 7, wherein when a touch operation is sensed by a pair of adjacent electrodes, the first driver IC determines a first coordinate by a touch area ratio of a first adjacent electrode and a second adjacent electrode of the pair of adjacent electrodes by the touch operation, and the second driver IC determines a second coordinate by a touch area ratio of the first adjacent electrode and the second adjacent electrode of the pair of adjacent electrodes by the touch operation.
9. The touch screen of claim 2, wherein the touch electrode layer further includes a plurality of third touch electrodes and a plurality of fourth touch electrodes, the plurality of third touch electrodes respectively form a sensing electrode pair with the plurality of first touch electrodes, the plurality of fourth touch electrodes respectively form a sensing electrode pair with the plurality of second touch electrodes, the first driver IC is electrically connected to the plurality of third touch electrodes through the first channel lead, and the second driver IC is electrically connected to the plurality of fourth touch electrodes through the second channel lead.
10. The touch screen of claim 9, wherein the first touch electrodes and the third touch electrodes are spaced apart from each other and insulated from each other, and a distance between the first touch electrode and the third touch electrode in the pair of sensing electrodes is smaller than a preset threshold; the plurality of second touch electrodes and the plurality of fourth touch electrodes are arranged in an insulating mode at intervals, and the distance between the second touch electrode and the fourth touch electrode in the induction electrode pair is smaller than a preset threshold value.
11. The touch screen of claim 10, wherein the first driver IC is connected to a pair of sense electrodes, the first touch electrode has a width in a first direction that gradually increases, and the third touch electrode has a width in the first direction that gradually decreases; in the pair of sensing electrodes connected to the second driving IC, the width of the second touch electrode along a second direction gradually increases, and the width of the fourth touch electrode along the second direction gradually decreases, wherein the first direction is the same as or different from the second direction.
12. The touch screen according to claim 11, wherein when a touch operation is sensed by a sensing electrode pair, the first drive IC determines coordinates of the touch operation by a touch area ratio of a first touch electrode and a third touch electrode in the sensing electrode pair, or the second drive IC determines coordinates of the touch operation by a touch area ratio of a second touch electrode and a fourth touch electrode in the sensing electrode pair.
13. The touch screen of claim 11, wherein the first driving IC is connected to a pair of sensing electrodes, and the first touch electrode and the third touch electrode are arranged in a central symmetry; and in the induction electrode pair connected with the second drive IC, the second touch electrode and the fourth touch electrode are arranged in central symmetry.
14. The touch screen of claim 9, wherein the touch electrode layer comprises a first area, a second area, and an interface area connecting the first area and the second area; the first area is provided with a plurality of first touch electrodes and a plurality of third touch electrodes, the second area is provided with a plurality of second touch electrodes and a plurality of fourth touch electrodes, and the interface area is provided with one or more first adjacent electrodes and one or more second adjacent electrodes.
15. The touch screen of claim 14, wherein the interface area partially overlaps the first and second areas, respectively.
16. The touch screen of claim 1, wherein a first adjacent electrode and a second adjacent electrode of the pair of adjacent electrodes are embedded in and insulated from each other.
17. The touch screen of claim 16, wherein the first adjacent electrode comprises a first main body portion and a plurality of first extension portions, the plurality of first extension portions extend from the first main body portion to the second adjacent electrode, and the plurality of first extension portions are disposed at intervals on a side of the first main body portion close to the second adjacent electrode; the second adjacent electrode comprises a second main body part and a plurality of second extending parts, the second extending parts extend from the second main body part to the first adjacent electrode, the second extending parts are arranged on one side, close to the first adjacent electrode, of the second main body part at intervals, and the first extending parts and the second extending parts are meshed with each other.
18. The touch screen of claim 17, wherein a first gap is formed between two adjacent first extension portions, a second gap is formed between two adjacent second extension portions, each first extension portion is received in the corresponding second gap, and each second extension portion is received in the corresponding first gap.
19. The touch screen of claim 18, wherein the first extension and the second extension may also be one or more of triangular, trapezoidal, rectangular, circular, elliptical, polygonal in shape.
20. A touch screen, characterized in that the touch screen comprises: the touch electrode layer comprises a first touch electrode, a second touch electrode, a first drive IC and a second drive IC, the first drive IC is electrically connected with the first touch electrode, the second drive IC is electrically connected with the second touch electrode, and the touch electrode layer further comprises a common electrode which is simultaneously electrically connected with the first drive IC and the second drive IC.
21. The touch screen of claim 20, wherein the common electrode simultaneously transmits a touch signal generated by a touch operation to the first and second driving ICs when the touch operation is sensed.
22. An electronic device, comprising a housing and a touch screen as claimed in any one of claims 1-21, wherein the housing is configured to carry the touch screen.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010430274.XA CN113703596A (en) | 2020-05-20 | 2020-05-20 | Touch screen and electronic equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010430274.XA CN113703596A (en) | 2020-05-20 | 2020-05-20 | Touch screen and electronic equipment |
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| Publication Number | Publication Date |
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| CN113703596A true CN113703596A (en) | 2021-11-26 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202010430274.XA Pending CN113703596A (en) | 2020-05-20 | 2020-05-20 | Touch screen and electronic equipment |
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| CN103258492A (en) * | 2012-02-20 | 2013-08-21 | 乐金显示有限公司 | Display device with integrated touch screen and method for driving the same |
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