CN115543125A - Display touch integrated chip, touch module and touch detection method - Google Patents

Display touch integrated chip, touch module and touch detection method Download PDF

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CN115543125A
CN115543125A CN202211287006.2A CN202211287006A CN115543125A CN 115543125 A CN115543125 A CN 115543125A CN 202211287006 A CN202211287006 A CN 202211287006A CN 115543125 A CN115543125 A CN 115543125A
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touch
induction
sensing
combined
electrode
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孙添平
付召华
莫虬
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Shenzhen Aixiesheng Technology Co Ltd
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Shenzhen Aixiesheng Technology Co Ltd
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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
    • 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
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
    • G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
    • G06F3/03—Arrangements for converting the position or the displacement of a member into a coded form
    • G06F3/041—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means
    • G06F3/044—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means by capacitive means
    • G06F3/0446—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means by capacitive means using a grid-like structure of electrodes in at least two directions, e.g. using row and column electrodes

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Abstract

The application relates to a display touch integrated chip, a touch module and a touch detection method. The display touch integrated chip is configured with a plurality of input ends and is used for receiving induction signals from a combined induction electrode comprising a plurality of independent induction electrodes in the touch display screen; the touch detection circuits receive induction signals input by the input end to acquire induction detection data; the calculation point logic module is connected with the touch detection circuits and used for calculating induction analysis data according to the induction detection data to determine the touch position of the touch display screen; according to the display touch integrated chip, one touch detection circuit acquires the sensing detection data of one combined sensing electrode at a time, one combined sensing electrode comprises a plurality of independent sensing electrodes, the calculation point logic module calculates the sensing detection data, and the sensing analysis data of the independent sensing electrodes can be acquired at a time to determine the touch position, so that the touch detection circuit required by touch position determination can be greatly reduced, and the area of the chip is reduced.

Description

Display touch integrated chip, touch module and touch detection method
Technical Field
The present application relates to the field of display touch technologies, and in particular, to a display touch integrated chip, a touch module, and a touch detection method.
Background
Many Touch Display screens are driven by Touch and Display Driver Integration (TDDI) chips to Display and control Touch, integrating Touch and Display functions.
In the current stage of the TDDI technology, a self-capacitance technology is adopted, voltage electrodes in a display screen are cut into touch electrodes, all the touch electrodes or the voltage electrodes are connected together through a TDDI chip during display to form voltage electrodes required for display, and signals are transmitted by touch scanning circuits of the chip during touch scanning of the touch electrodes. However, since the number of the sensing electrodes is large, each sensing electrode corresponds to one detection circuit, which results in a large chip area and high cost.
Disclosure of Invention
In view of the foregoing, it is desirable to provide a display touch integrated chip, a touch module, a touch detection method, a touch detection apparatus, and a computer device, which can reduce the number of touch detection circuits.
In a first aspect, the present application provides a display touch integrated chip. The display touch integrated chip is configured with a plurality of input ends, the input ends are used for connecting a touch display screen to receive sensing signals from combined sensing electrodes in the touch display screen, the combined sensing electrodes comprise a plurality of independent sensing electrodes, and the display touch integrated chip comprises:
the touch detection circuits are connected with the input end and used for receiving induction signals input by the input end to obtain induction detection data; the touch detection circuit acquires the induction detection data of one combined induction electrode each time;
the computation logic module is connected with the touch detection circuits and used for obtaining induction analysis data according to the induction detection data to determine the touch position of the touch display screen; the sensing analysis data is sensing data of one independent sensing electrode in the combined sensing electrode.
In one embodiment, when the computation logic module determines the touch position of the touch display screen according to the sensing analysis data, the computation logic module is specifically configured to:
calculating to obtain a touch coordinate of the touch display screen according to the induction analysis data;
and determining the touch position of the touch display screen according to the touch coordinate of the touch display screen.
In one embodiment, the display touch integrated chip further includes:
the touch control detection circuit comprises a plurality of input ends, a plurality of switch modules and a control module, wherein each switch module comprises a plurality of first ends and a second end, the first ends of the switch modules are respectively connected with the input ends in a one-to-one correspondence mode, the second ends of the switch modules are connected with the corresponding touch control detection circuits, and the switch modules are used for selectively conducting signal transmission paths between at least one first end and the second ends.
In one embodiment, the switch module comprises:
the switch comprises two ends, one end of the switch is connected with the first ends in a one-to-one correspondence mode, and the other end of the switch is connected to the second end.
In a second aspect, the present application further provides a touch module, including:
the display touch integrated chip according to any of the above embodiments;
the touch control circuit comprises a plurality of combined induction electrodes, wherein the combined induction electrodes are arranged in an array, two adjacent combined induction electrodes in a first direction are staggered in a second direction, the first direction is vertical to the second direction, each combined induction electrode comprises a plurality of independent induction electrodes which are sequentially arranged in the first direction, and the independent induction electrodes in the same combined induction electrode are connected with the same touch control detection circuit.
In one embodiment, the plurality of independent sensing electrodes in the same combined sensing electrode are connected, and the independent sensing electrodes in the same combined sensing electrode are connected to the same touch detection circuit.
In one embodiment, the independent sensing electrodes in the same combined sensing electrode are disconnected, and each of the independent sensing electrodes in the same combined sensing electrode is respectively connected to a plurality of input terminals connected to the same touch detection circuit.
In one embodiment, each of the combined sensing electrodes includes two of the independent sensing electrodes.
In a third aspect, the present application further provides a touch detection method applied to the touch module in any of the above embodiments, where the method includes:
determining a target combined electrode according to sensing detection data of each combined sensing electrode in the touch display screen, wherein the target combined electrode is the touched combined sensing electrode;
acquiring induction analysis data of each independent induction electrode in a target area according to induction detection data of each combined induction electrode in the target area, wherein the target area comprises the target combined electrode and a plurality of combined induction electrodes surrounding the target combined electrode;
and acquiring touch coordinates according to the induction analysis data.
In one embodiment, the first direction is a column direction, the second direction is a row direction, and when the combined sensing electrode includes two independent sensing electrodes, the acquiring sensing analysis data of each independent sensing electrode in the target area includes:
when the independent induction electrode to be obtained with the induction analysis data is positioned at the outermost side of the target area, according to the induction detection data of the two first related combined electrodes in the target area, the induction analysis data of the independent induction electrode is obtained by adopting the following formula:
Figure BDA0003900333570000031
the first related combined electrode is adjacent to the independent induction electrode for acquiring the induction analysis data in the row direction, and partially coincides with the independent induction electrode for acquiring the induction analysis data in the column direction;
i is the number of columns where the combined sensing electrodes are located, j is the number of rows where the combined sensing electrodes are located, n is the number of rows of the independent sensing electrodes in the combined sensing electrodes, and when n =1, k = j; when n =2, k = j +1; DM n ij is induction analysis data of the independent induction electrode; dij is the sensing data of the combined sensing electrode.
In one embodiment, the acquiring the sensing analysis data of each independent sensing electrode in the target region further includes:
when the independent induction electrode of the induction analysis data to be obtained is located at the non-outermost side of the target area, acquiring the induction analysis data of the independent induction electrode by adopting the following formula according to the induction detection data of the four second relevant combined electrodes in the target area:
Figure BDA0003900333570000032
the second relevant combined electrode is adjacent to the independent induction electrode for acquiring the induction analysis data in the row direction, and partially coincides with the independent induction electrode for acquiring the induction analysis data in the column direction;
when n =1, l = j-1; when n =2, l = j.
In one embodiment, each independent sensing electrode in the touch display screen is respectively configured with a global coordinate under a global coordinate system, and each independent sensing electrode respectively covers a plurality of touch points; the obtaining touch coordinates from a plurality of the sensing analysis data includes:
determining a target sensing electrode according to a plurality of the sensing analysis data, wherein the target sensing electrode is the touched independent sensing electrode;
establishing a target coordinate system by taking the target induction electrode as a center, and acquiring a relative position relation between the target coordinate system and the global coordinate system;
and acquiring the target coordinates of the actual touch points in the target coordinate system according to the plurality of induction analysis data, and acquiring the global coordinates of the actual touch points as the touch coordinates according to the relative position relation and the target coordinates.
In one embodiment, when the target area includes the independent sensing electrodes in row 2m and column 2n +1, the obtaining the target coordinate of the actual touch point in the target coordinate system according to the plurality of sensing analysis data, and obtaining the global coordinate of the actual touch point as the touch coordinate according to the relative position relationship and the target coordinate includes:
Figure BDA0003900333570000041
Figure BDA0003900333570000042
wherein (X) a ，Y b ) Coordinates of each independent induction electrode in a target coordinate system; (a, b) are coordinates of each independent induction electrode in a global coordinate system; DM a+q,b+k Data were analyzed for the induction of individual induction electrodes.
According to the display touch integrated chip, one touch detection circuit acquires the sensing detection data of one combined sensing electrode at a time, one combined sensing electrode comprises a plurality of independent sensing electrodes, the point calculation logic module calculates the sensing detection data, the sensing analysis data of the independent sensing electrodes can be acquired at one time to determine the touch position, the touch detection circuits required for determining the touch position can be greatly reduced, and the area of the chip is reduced.
Drawings
FIG. 1 is a schematic diagram illustrating an embodiment of a touch integrated chip;
FIG. 2 is a schematic diagram of a switch module according to one embodiment;
FIG. 3 is a schematic structural diagram of a touch module according to an embodiment;
FIG. 4 is a schematic diagram of a combined sense electrode according to one embodiment;
FIG. 5 is a schematic diagram illustrating the connection between the combined sensing electrode and the touch detection circuit according to an embodiment;
FIG. 6 is a schematic diagram illustrating the connection between a combined sensing electrode and a touch detection circuit according to another embodiment;
FIG. 7 is a flow diagram of a method for touch detection in one embodiment;
FIG. 8 is a schematic view of an embodiment with individual sensing electrodes located at the outermost sides of the target area;
FIG. 9 is a schematic view of an alternative embodiment of independent sensing electrodes located at non-outermost sides of the target area;
FIG. 10 is a diagram illustrating an arrangement of individual sensing electrodes including a global coordinate system and a target coordinate system, according to one embodiment;
FIG. 11 is a block diagram showing the structure of a touch sensing device according to an embodiment;
FIG. 12 is a diagram illustrating an internal structure of a computer device according to an embodiment.
Detailed Description
In order to make the objects, technical solutions and advantages of the present application more apparent, the present application is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present application and are not intended to limit the present application.
To facilitate an understanding of the present application, the present application will now be described more fully with reference to the accompanying drawings. Embodiments of the present application are set forth in the accompanying drawings. This application may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.
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 application belongs. The terminology used herein in the description of the present application is for the purpose of describing particular embodiments only and is not intended to be limiting of the application.
It will be understood that, as used herein, the terms "first," "second," and the like may be used herein to describe various elements, but these elements should not be limited by these terms. These terms are only used to distinguish one element from another.
Spatial relational terms, such as "under," "below," "under," "over," and the like may be used herein to describe one element or feature's relationship to another element or feature as illustrated in the figures. It will be understood that the spatially relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the figures. For example, if the device in the figures is turned over, elements or features described as "below" or "beneath" other elements or features would then be oriented "above" the other elements or features. Thus, the exemplary terms "under" and "under" can encompass both an orientation of above and below. In addition, the device may also include additional orientations (e.g., rotated 90 degrees or other orientations) and the spatial descriptors used herein interpreted accordingly.
It will be understood that when an element is referred to as being "connected" to another element, it can be directly connected to the other element or be connected to the other element through intervening elements. Further, "connection" in the following embodiments is understood to mean "electrical connection", "communication connection", or the like, if there is a transfer of electrical signals or data between the connected objects.
As used herein, the singular forms "a", "an" and "the" may include the plural forms as well, unless the context clearly indicates otherwise. It will be further understood that the terms "comprises/comprising," "includes" or "including," etc., specify the presence of stated features, integers, steps, operations, components, parts, or combinations thereof, but do not preclude the presence or addition of one or more other features, integers, steps, operations, components, parts, or combinations thereof. Also, as used in this specification, the term "and/or" includes any and all combinations of the associated listed items.
To solve the technical problem in the background art, in one embodiment, as shown in fig. 1, the present application provides a display touch integrated chip 110, which is configured with a plurality of input ends 113, where the input ends 113 are used for connecting to a touch display screen to receive sensing detection signals from the touch display screen, the combined sensing electrode includes a plurality of independent sensing electrodes 101, and the display touch integrated chip 110 includes: a plurality of touch detection circuits 111, wherein the touch detection circuits 111 are connected to the input terminal 113, and the touch detection circuits 111 are configured to receive an induction signal input by the input terminal 113 to obtain induction detection data, wherein one touch detection circuit obtains the induction detection data of one combined induction electrode at a time; a computation logic module 114, connected to the touch detection circuits 111, for computing, according to the sensing detection data, sensing analysis data to determine a touch position of the touch display screen; the sensing analysis data is sensing data of one of the independent sensing electrodes 101 in the combined sensing electrode.
In this embodiment, one touch detection circuit obtains sensing detection data of one combined sensing electrode each time, the combined sensing electrode includes a plurality of independent sensing electrodes, the computation logic module calculates the sensing detection data, and sensing analysis data of the plurality of independent sensing electrodes can be obtained at one time to determine a touch position, so that touch detection circuits required for determining the touch position can be greatly reduced, and the chip area is reduced.
In one embodiment, when the computation logic module determines the touch position of the touch display screen according to the sensing analysis data, the computation logic module is specifically configured to:
calculating to obtain a touch coordinate of the touch display screen according to the induction analysis data;
and determining the touch position of the touch display screen according to the touch coordinate of the touch display screen.
In this embodiment, the computation logic module may perform computation according to the sensing analysis data of each independent module to obtain an accurate touch point, determine a touch coordinate of the touch point, and then determine a touch position of the touch display screen, and may perform computation based on sensing detection data in a combined sensing electrode including a plurality of independent sensing electrodes, which is obtained by the touch detection circuit, to obtain the sensing analysis data of each independent sensing electrode, and then obtain the touch coordinate, thereby improving detection efficiency, and ensuring accuracy of detecting the touch position while reducing the number of touch detection lines.
In an embodiment, the display touch integrated chip 110 further includes a switch module 112 as shown in fig. 2, where the switch module 112 includes a plurality of first terminals 201 and a second terminal 202, the plurality of first terminals 201 of the switch module 112 are respectively connected to the plurality of input terminals 113 in a one-to-one correspondence, the second terminal 202 of the switch module 112 is connected to a corresponding one of the touch detection circuits 111, and the switch module 112 is configured to selectively turn on a signal transmission path between at least one first terminal 201 and the second terminal 202.
Referring again to fig. 2, the switch module 112 includes a plurality of switches 203, where the switches 203 include two ends, one end of each of the plurality of switches is connected to the first ends 201 in a one-to-one correspondence, and the other end of each of the plurality of switches is connected to the second end 202.
In this embodiment, the switch module 112 includes a plurality of switches to control whether the connection between the touch detection circuit 111 and the combined sensing electrode is conducted, so as to flexibly control and receive the sensing detection data of a certain combined sensing electrode, thereby ensuring that the sensing detection data is completely and accurately received.
In an embodiment, the present application further provides a touch module, which includes the display touch integrated chip and the touch display screen in any of the above embodiments, as shown in fig. 3, the touch display screen includes a plurality of combined sensing electrodes 100. The display touch integrated chip 110 includes a plurality of input terminals 113, and the touch detection circuit 111 is configured to determine a touch position of the touch display screen according to sensing detection data input by the input terminals 113.
The plurality of combined sensing electrodes 100 are arranged in an array, two combined sensing electrodes 100 adjacent to each other in a first direction are staggered in a second direction, the first direction is perpendicular to the second direction, each combined sensing electrode 100 respectively comprises a plurality of independent sensing electrodes 101 sequentially arranged in the first direction, and the plurality of independent sensing electrodes 101 in the same combined sensing electrode 100 are connected with the same touch detection circuit 111.
In this embodiment, by providing a plurality of combined sensing electrodes arranged in an array, the plurality of independent sensing electrodes 101 in the same combined sensing electrode are connected to the same touch detection circuit 111 of the display touch integrated chip, so that the number of touch detection circuits 111 required by the display touch integrated chip can be significantly reduced, and the chip area can be reduced.
In one embodiment, as shown in fig. 4, each of the combined sensing electrodes 100 includes two of the independent sensing electrodes 101. In this embodiment, one combined sensing electrode 100 includes two independent sensing electrodes 101, which facilitates to obtain and display the signal output by the touch integrated chip 110 to detect the signal output by the combined sensing electrode 100.
In one embodiment, a plurality of independent sensing electrodes 101 in the same combined sensing electrode 100 are connected, and one independent sensing electrode 101 in the same combined sensing electrode 100 is connected to the same touch detection circuit 111.
In this embodiment, as shown in fig. 5, a combined sensing electrode 100 including two independent sensing electrodes 101 is taken as an example for description, wherein a dashed line box represents one combined sensing electrode 100, the two independent sensing electrodes 101 in the same combined sensing electrode 100 are connected, and the connected combined sensing electrode 100 is further connected to a touch detection circuit 111 of the display touch integrated chip 110, which can reduce the detection circuits connected to the display touch integrated chip 110. The technical scheme in this embodiment improves the use performance of the touch detection circuit 111, and further improves the detection efficiency.
In one embodiment, a plurality of independent sensing electrodes 101 in the same combined sensing electrode 100 are disconnected, and each independent sensing electrode 101 in the same combined sensing electrode 100 is respectively connected to a plurality of input terminals 113 connected to the same touch detection circuit 111.
In this embodiment, as shown in fig. 6, taking an example that one combined sensing electrode 100 includes two independent sensing electrodes 101, the two independent sensing electrodes 101 are not connected, and the two independent sensing electrodes 101 are connected to two input terminals 113 of the touch detection circuit 111, that is, the touch detection circuit 111 detects data of the two independent sensing electrodes 101 together. The number of detection circuits of the touch detection circuit 111 can be reduced, the structure of the touch detection circuit 111 is simplified, and the area of the touch detection circuit 111 is reduced while the touch detection circuit connection is not performed on a single independent sensing electrode 101.
In an embodiment, as shown in fig. 7 and 8, a touch detection method is provided, which is exemplified by applying the method to a terminal, and the method in the embodiment includes the following steps:
step S102, determining a target combined electrode 602 according to sensing detection data of each combined sensing electrode 100 in the touch display screen, where the target combined electrode 602 is the touched combined sensing electrode 100.
Specifically, when the sensing detection data of one combined sensing electrode 100 in each combined sensing electrode 100 in the touch display screen is obviously inconsistent with the other combined sensing electrodes, it is determined that the target combined electrode 602 is the touched combined sensing electrode 100.
Step S202, obtaining induction analysis data of each independent induction electrode 101 in the target area 601 according to induction detection data of each combined induction electrode 100 in the target area 601, where the target area 601 includes the target combined electrode 602 and a plurality of combined induction electrodes 100 surrounding the target combined electrode 602.
Specifically, the sensing detection data of only the combined sensing electrode 100 detected in the touch integrated chip 110 is displayed, it is required to accurately determine which specific independent sensing electrode 101 in the touch display screen is touched, and the acquired sensing detection data needs to be decomposed and operated to obtain the sensing analysis data of the single independent sensing electrode 101 at the touched position.
Step S302, touch coordinates are obtained according to the induction analysis data.
In the touch detection method, in order to accurately determine the position of the touched independent sensing electrode 101, the sensing analysis data and the sensing data of the plurality of combined sensing electrodes 100 surrounding the target combined electrode 602 need to be combined for calculation, so that the detection accuracy is improved.
In an embodiment, the first direction is a column direction, the second direction is a row direction, and when the combined sensing electrode 100 includes two independent sensing electrodes 101, the acquiring sensing analysis data of each independent sensing electrode 101 in the target area 601 includes:
when the independent sensing electrode 101 to obtain the sensing analysis data is located at the outermost side of the target area 601, obtaining the sensing analysis data of the independent sensing electrode 101 by using the following formula according to the sensing detection data of the first relevant combined electrode set 604 in the target area 601:
Figure BDA0003900333570000101
the first relevant combined electrode set 604 is adjacent to the sensing electrode to be obtained with the sensing analysis data in the row direction, and partially coincides with the sensing electrode to be obtained with the sensing analysis data in the column direction; i is the number of columns where the combined sensing electrode 100 is located, j is the number of rows where the combined sensing electrode 100 is located, n is the number of rows of the independent sensing electrode 101 in the combined sensing electrode 100, and when n =1, k = j; when n =2, k = j +1；DM n ij is the induction analysis data of the independent induction electrode 101; dij is the sensing data of the combined sensing electrode 100. Wherein the first correlated combined electrode set 604 in fig. 8 includes the first correlated combined electrode within a dashed box of two dots.
In the present embodiment, as shown in fig. 8, in order to clearly express the logic expressed by the above formula, the touch detection lines and the connection lines between the combined sensing electrodes 100 and the touch detection lines are omitted in fig. 8, and the connection relationship between the combined sensing electrodes 100 shown in fig. 5 is taken as an example for explanation. When the independent sensing electrode 101 to obtain the sensing analysis data is located in the leftmost column of the target area 601, that is, one of the independent sensing electrodes 101 in the combined sensing electrode 603 in fig. 8, the numerator in the formula is D (i + 1) k; when the individual sensing electrode 101 to acquire the sensing analysis data is located in the leftmost column of the target region 601, the numerator in the formula is D (i-1) k. For example, the data of the induction analysis of the independent induction electrode 101 is calculated by the induction detection data of the two first related combined electrodes, and the target combined electrode is also the first related combined electrode. By the method, the accuracy of the induction analysis data can be improved.
In one embodiment, as shown in fig. 9, when the independent sensing electrode 101 of the sensing analysis data to be obtained is located at the non-outermost side of the target area 601, the sensing analysis data of the independent sensing electrode 101 is obtained according to the sensing detection data of the second correlated combined electrode set 702 in the target area 601 by using the following formula:
Figure BDA0003900333570000111
the second combined electrode set 702 in fig. 9 includes second combined electrodes marked by four dotted dashed boxes, and the second combined electrode set 702 is adjacent to the sensing electrodes to be obtained with the sensing analysis data in the row direction, and partially coincides with the sensing electrodes to be obtained with the sensing analysis data in the column direction; when n =1, l = j-1; when n =2, l = j.
In this embodiment, referring to fig. 9 again, it is described that a target combined electrode and the sensing electrode of the sensing analysis data to be acquired are the same combined sensing electrode, one combined sensing electrode 100 includes two independent sensing electrodes 101, and the two combined sensing electrodes may also be different combined independent sensing electrodes 101 in actual application, and the sensing analysis data of the sensing electrode in the combined sensing electrode 701 needs to be calculated through the sensing detection data of the second relevant combined electrode set 702.
In one embodiment, as shown in fig. 10, each independent sensing electrode 101 in the touch display screen is configured with a global coordinate 801 under a global coordinate 801 system, and each independent sensing electrode 101 covers a plurality of touch points 803; the obtaining touch coordinates from a plurality of the sensing analysis data includes: determining a target sensing electrode 804 according to a plurality of the sensing analysis data, wherein the target sensing electrode 804 is the touched independent sensing electrode 101; establishing a target coordinate system 802 by taking the target induction electrode 804 as a center, and acquiring a relative position relation between the target coordinate system 802 and the global coordinate 801; and acquiring the target coordinates of the actual touch point 803 in the target coordinate system 802 according to the plurality of sensing analysis data, and acquiring the global coordinates 801 of the actual touch point 803 as the touch coordinates according to the relative position relationship and the target coordinates.
In this embodiment, the calculation process for obtaining the touch coordinate is simplified by establishing the target coordinate system 802, and the sensing analysis data of the target sensing electrode 804 is greatly different from the sensing analysis data of the other independent sensing electrodes 101, so that the target sensing electrode 804 can be accurately determined by a plurality of sensing analysis data.
In one embodiment, when the target area 601 includes 2m rows 2n +1 columns of the independent sensing electrodes 101, the obtaining the target coordinate of the actual touch point 803 in the target coordinate system 802 according to the plurality of sensing analysis data, and obtaining the global coordinate 801 of the actual touch point 803 as the touch coordinate according to the relative position relationship and the target coordinate includes:
Figure BDA0003900333570000121
Figure BDA0003900333570000122
wherein (X) a ，Y b ) Coordinates of each individual sensing electrode 101 in a target coordinate system 802; (a, b) are coordinates of each independent sensing electrode 101 in a global coordinate 801 system; DM a+q,b+k The data is analyzed for the sensing of the individual sensing electrodes 101.
In this embodiment, the above calculation formula of the touch coordinate averages all the data of the independent sensing electrodes 101 in the target area 601, and since each data of the independent sensing electrode 101 is multiplied by its coordinate in the target coordinate system 802, the most accurate touch coordinate can be obtained, and the accuracy of detecting the position of the actual touch point 803 is improved.
It should be understood that, although the steps in the flowcharts related to the embodiments as described above are sequentially displayed as indicated by arrows, the steps are not necessarily performed sequentially as indicated by the arrows. The steps are not performed in the exact order shown and described, and may be performed in other orders, unless explicitly stated otherwise. Moreover, at least a part of the steps in the flowcharts related to the embodiments described above may include multiple steps or multiple stages, which are not necessarily performed at the same time, but may be performed at different times, and the execution order of the steps or stages is not necessarily sequential, but may be rotated or alternated with other steps or at least a part of the steps or stages in other steps.
Based on the same inventive concept, the embodiment of the present application further provides a touch detection apparatus for implementing the touch detection method. The implementation scheme for solving the problem provided by the device is similar to the implementation scheme described in the above method, so specific limitations in one or more embodiments of the touch detection device provided below can be referred to the limitations on the touch detection method in the foregoing, and details are not described here.
In one embodiment, as shown in fig. 11, there is provided a touch detection apparatus 900 including: a determination module 910, a first execution module 920, and a second execution module 930.
A determining module 910, configured to determine a target combined electrode 602 according to sensing detection data of each combined sensing electrode 100 in the touch display screen, where the target combined electrode 602 is the touched combined sensing electrode 100.
A first executing module 920, configured to obtain sensing analysis data of each independent sensing electrode 101 in the target region 601 according to sensing detection data of each combined sensing electrode 100 in the target region 601, where the target region 601 includes the target combined electrode 602 and a plurality of combined sensing electrodes 100 surrounding the target combined electrode 602.
A second executing module 930, configured to obtain touch coordinates according to a plurality of the sensing analysis data.
In an embodiment, the first direction is a column direction, the second direction is a row direction, and when the combined sensing electrode 100 includes two independent sensing electrodes 101, the first executing module 920 is further configured to, when an independent sensing electrode 101 to be obtained with the sensing analysis data is located at an outermost side of the target area 601, obtain the sensing analysis data of the independent sensing electrode 101 according to the sensing detection data of two first related combined electrode sets 604 in the target area 601 by using the following formula:
Figure BDA0003900333570000131
wherein the first correlated combined electrode set 604 and the second correlated combined electrode set areThe induction electrodes for acquiring the induction analysis data are adjacent in the row direction and partially overlapped with the induction electrodes for acquiring the induction analysis data in the column direction; i is the number of columns in which the combined sensing electrode 100 is located, j is the number of rows in which the combined sensing electrode 100 is located, n is the number of rows in the combined sensing electrode 100 of the independent sensing electrode 101, and when n =1, k = j; when n =2, k = j +1; DM n ij is induction analysis data of the independent induction electrode 101; dij is the sensing data of the combined sensing electrode 100.
In one embodiment, when the independent sensing electrode 101 of the sensing analysis data to be obtained is located at the non-outermost side of the target area 601, the sensing analysis data of the independent sensing electrode 101 is obtained according to the sensing detection data of the second correlated combined electrode set 702 in the target area 601 by using the following formula:
Figure BDA0003900333570000132
wherein the second correlated combined electrode set 702 is adjacent to the sensing electrode to obtain the sensing analysis data in the row direction, and partially coincides with the sensing electrode to obtain the sensing analysis data in the column direction; when n =1, l = j-1; when n =2, l = j.
In one embodiment, each independent sensing electrode 101 in the touch display screen is respectively configured with a global coordinate 801 under a global coordinate 801 system, each independent sensing electrode 101 respectively covers a plurality of touch points 803, and the second execution module 930 is further configured to establish a target coordinate system 802 with the target sensing electrode 804 as a center, and obtain a relative position relationship between the target coordinate system 802 and the global coordinate 801 system; and acquiring the target coordinates of the actual touch point 803 in the target coordinate system 802 according to the plurality of sensing analysis data, and acquiring the global coordinates 801 of the actual touch point 803 as the touch coordinates according to the relative position relationship and the target coordinates.
When the target area 601 includes the independent sensing electrodes 101 in 2m rows 2n +1 column, the obtaining the target coordinate of the actual touch point 803 in the target coordinate system 802 according to the plurality of sensing analysis data, and obtaining the global coordinate 801 of the actual touch point 803 as the touch coordinate according to the relative position relationship and the target coordinate includes:
Figure BDA0003900333570000141
Figure BDA0003900333570000142
wherein (X) a ，Y b ) Coordinates of each individual sensing electrode 101 in a target coordinate system 802; (a, b) are coordinates of each independent sensing electrode 101 in a global coordinate 801 system; DM a+q,b+k The data is analyzed for the sensing of the individual sensing electrodes 101.
The modules in the touch detection device can be wholly or partially implemented by software, hardware and a combination thereof. The modules can be embedded in a hardware form or independent from a processor in the computer device, and can also be stored in a memory in the computer device in a software form, so that the processor can call and execute operations corresponding to the modules.
In one embodiment, a computer device is provided, which may be a server, and its internal structure diagram may be as shown in fig. 12. The computer device includes a processor, a memory, and a network interface connected by a system bus. Wherein the processor of the computer device is configured to provide computing and control capabilities. The memory of the computer device includes a non-volatile storage medium and an internal memory. The non-volatile storage medium stores an operating system, a computer program, and a database. The internal memory provides an environment for the operating system and the computer program to run on the non-volatile storage medium. The database of the computer device is used for storing the induction analysis data and the induction detection data. The network interface of the computer device is used for communicating with an external terminal through a network connection. The computer program is executed by a processor to implement a touch detection method.
Those skilled in the art will appreciate that the architecture shown in fig. 12 is merely a block diagram of some of the structures associated with the disclosed aspects and is not intended to limit the computing devices to which the disclosed aspects apply, as particular computing devices may include more or less components than those shown, or may combine certain components, or have a different arrangement of components.
In an embodiment, a computer device is further provided, which includes a memory and a processor, the memory stores a computer program, and the processor implements the steps of the above method embodiments when executing the computer program.
In an embodiment, a computer-readable storage medium is provided, on which a computer program is stored, which computer program, when being executed by a processor, carries out the steps of the above-mentioned method embodiments.
In an embodiment, a computer program product is provided, comprising a computer program which, when being executed by a processor, carries out the steps of the above-mentioned method embodiments.
It should be noted that, the user information (including but not limited to user device information, user personal information, etc.) and data (including but not limited to data for analysis, stored data, presented data, etc.) referred to in the present application are information and data authorized by the user or sufficiently authorized by each party.
It will be understood by those skilled in the art that all or part of the processes of the methods of the embodiments described above may be implemented by hardware instructions of a computer program, which may be stored in a non-volatile computer-readable storage medium, and when executed, may include the processes of the embodiments of the methods described above. Any reference to memory, database, or other medium used in the embodiments provided herein may include at least one of non-volatile and volatile memory. The nonvolatile Memory may include Read-Only Memory (ROM), magnetic tape, floppy disk, flash Memory, optical Memory, high-density embedded nonvolatile Memory, resistive Random Access Memory (ReRAM), magnetic Random Access Memory (MRAM), ferroelectric Random Access Memory (FRAM), phase Change Memory (PCM), graphene Memory, and the like. Volatile Memory can include Random Access Memory (RAM), external cache Memory, and the like. By way of illustration and not limitation, RAM can take many forms, such as Static Random Access Memory (SRAM) or Dynamic Random Access Memory (DRAM), among others. The databases referred to in various embodiments provided herein may include at least one of relational and non-relational databases. The non-relational database may include, but is not limited to, a block chain based distributed database, and the like. The processors referred to in the various embodiments provided herein may be, without limitation, general purpose processors, central processing units, graphics processors, digital signal processors, programmable logic devices, quantum computing-based data processing logic devices, or the like.
The technical features of the above embodiments can be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the above embodiments are not described, but should be considered as 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 application, and the description thereof is more specific and detailed, but not construed as limiting the scope of the present application. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the concept of the present application, which falls within the scope of protection of the present application. Therefore, the protection scope of the present application shall be subject to the appended claims.

Claims (13)

1. A display touch integrated chip configured with a plurality of input terminals, the input terminals being used for connecting a touch display screen to receive sensing signals from combined sensing electrodes in the touch display screen, the combined sensing electrodes including a plurality of independent sensing electrodes, the display touch integrated chip comprising:
the touch detection circuits are connected with the input end and used for receiving induction signals input by the input end to acquire induction detection data; the touch detection circuit acquires the induction detection data of one combined induction electrode each time;
the computation logic module is connected with the touch detection circuits and used for obtaining induction analysis data according to the induction detection data through calculation so as to determine the touch position of the touch display screen; the sensing analysis data is sensing data of one independent sensing electrode in the combined sensing electrode.
2. The touch integrated chip of claim 1, wherein when the click logic module determines the touch position of the touch display screen according to the sensing analysis data, the click logic module is specifically configured to:
calculating to obtain a touch coordinate of the touch display screen according to the induction analysis data;
and determining the touch position of the touch display screen according to the touch coordinate of the touch display screen.
3. The display touch integrated chip of claim 1, further comprising:
the touch control detection circuit comprises a plurality of input ends, a plurality of switch modules and a control module, wherein each switch module comprises a plurality of first ends and a second end, the first ends of the switch modules are respectively connected with the input ends in a one-to-one correspondence mode, the second ends of the switch modules are connected with the corresponding touch control detection circuits, and the switch modules are used for selectively conducting signal transmission paths between at least one first end and the second ends.
4. The display touch integrated chip of claim 3, wherein the switch module comprises:
the switch comprises two ends, one end of the switch is connected with the first ends in a one-to-one correspondence mode, and the other end of the switch is connected to the second end.
5. A touch module, comprising:
the display touch integrated chip of any of claims 1 to 4;
a touch display screen comprising: the touch control circuit comprises a plurality of combined induction electrodes, wherein the combined induction electrodes are arranged in an array, two adjacent combined induction electrodes in a first direction are staggered in a second direction, the first direction is vertical to the second direction, each combined induction electrode comprises a plurality of independent induction electrodes which are sequentially arranged in the first direction, and the independent induction electrodes in the same combined induction electrode are connected with the same touch control detection circuit.
6. The touch module of claim 5, wherein the independent sensing electrodes of the same combined sensing electrode are connected, and the independent sensing electrodes of the same combined sensing electrode are connected to the same touch detection circuit.
7. The touch module of claim 5, wherein the independent sensing electrodes of the same combined sensing electrode are disconnected, and each of the independent sensing electrodes of the same combined sensing electrode is connected to a plurality of input terminals of the same touch detection circuit.
8. The touch module of claim 5, wherein each of the combined sensing electrodes comprises two of the independent sensing electrodes.
9. A touch detection method applied to the touch module according to any one of claims 5 to 8, the method comprising:
determining a target combined electrode according to sensing detection data of each combined sensing electrode in the touch display screen, wherein the target combined electrode is the touched combined sensing electrode;
acquiring induction analysis data of each independent induction electrode in a target area according to induction detection data of each combined induction electrode in the target area, wherein the target area comprises the target combined electrode and a plurality of combined induction electrodes surrounding the target combined electrode;
and acquiring touch coordinates according to the induction analysis data.
10. The method of claim 9, wherein the first direction is a column direction and the second direction is a row direction, and when the combined sensing electrode comprises two independent sensing electrodes, the obtaining the sensing analysis data of each independent sensing electrode in the target area comprises:
when the independent induction electrode to be obtained with the induction analysis data is positioned at the outermost side of the target area, according to the induction detection data of the two first related combined electrodes in the target area, the induction analysis data of the independent induction electrode is obtained by adopting the following formula:
Figure FDA0003900333560000021
the first related combined electrode is adjacent to the independent induction electrode for acquiring the induction analysis data in the row direction, and partially coincides with the independent induction electrode for acquiring the induction analysis data in the column direction;
i is the number of columns where the combined independent sensing electrodes are located, j is the number of rows where the combined independent sensing electrodes are located, n is the number of rows of the independent sensing electrodes in the combined sensing electrodes, and when n =1, k = j; when n =2, k = j +1; DM n ij is the induction analysis number of the independent induction electrodeAccordingly; dij is the sensing data of the combined sensing electrode.
11. The method of claim 10, wherein the obtaining the induction analysis data for each individual induction electrode in the target region further comprises:
when the independent induction electrode of the induction analysis data to be obtained is located at the non-outermost side of the target area, obtaining the induction analysis data of the independent induction electrode by adopting the following formula according to the induction detection data of the four second relevant combined electrodes in the target area:
Figure FDA0003900333560000031
the second relevant combined electrode is adjacent to the independent induction electrode for acquiring the induction analysis data in the row direction, and partially coincides with the independent induction electrode for acquiring the induction analysis data in the column direction;
when n =1, l = j-1; when n =2, l = j.
12. The method according to any one of claims 9 to 11, wherein each independent sensing electrode in the touch display screen is configured with global coordinates in a global coordinate system, and each independent sensing electrode covers a plurality of touch points; the obtaining touch coordinates from a plurality of the sensing analysis data includes:
determining a target sensing electrode according to a plurality of the sensing analysis data, wherein the target sensing electrode is the touched independent sensing electrode;
establishing a target coordinate system by taking the target induction electrode as a center, and acquiring a relative position relation between the target coordinate system and the global coordinate system;
and acquiring the target coordinates of the actual touch points in the target coordinate system according to the plurality of induction analysis data, and acquiring the global coordinates of the actual touch points as the touch coordinates according to the relative position relation and the target coordinates.
13. The method according to claim 12, wherein when the target area includes the independent sensing electrodes in row 2m and column 2n +1, the obtaining the target coordinates of the actual touch point in the target coordinate system according to the plurality of sensing analysis data, and obtaining the global coordinates of the actual touch point as the touch coordinates according to the relative position relationship and the target coordinates includes:
Figure FDA0003900333560000041
Figure FDA0003900333560000042
wherein (X) a ，Y b ) Coordinates of each independent induction electrode in a target coordinate system; (a, b) are coordinates of each independent induction electrode in a global coordinate system; DM a+q,b+k Data were analyzed for the induction of individual induction electrodes.
CN202211287006.2A 2022-10-20 2022-10-20 Display touch integrated chip, touch module and touch detection method Pending CN115543125A (en)

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