WO2019136642A1

WO2019136642A1 - Electrode abnormality handling method, device, touch screen and electronic terminal

Info

Publication number: WO2019136642A1
Application number: PCT/CN2018/072133
Authority: WO
Inventors: 毛栋良; 康为
Original assignee: 深圳市汇顶科技股份有限公司
Priority date: 2018-01-10
Filing date: 2018-01-10
Publication date: 2019-07-18
Also published as: CN108369472A; CN108369472B

Abstract

An embodiment of the present invention provides an electrode abnormality handling method, a device, a touch screen, and an electronic terminal. The method for handling electrode abnormality comprises: determining an open circuit capacitive node corresponding to an open circuit electrode in the target capacitive node of a touch screen operated by touch, wherein the open circuit electrode comprises an open circuit electrode in a capacitive sensor of the touch screen; determining a normal electrode adjacent to the open circuit electrode, and acquiring a capacitance value of a normal capacitive node, adjacent to the open circuit capacitive node, on the determined normal electrode; performing capacitance compensation on the open circuit capacitive node according to the capacitance value of the normal capacitive node. The embodiment of the present invention can effectively perform capacitance compensation on a corresponding capacitive node on an open circuit electrode, thereby avoiding touch screen failures such as pixel split, disconnection, and pixel elimination caused by disconnection of an electrode.

Description

Electrode abnormality processing method, device, touch screen and electronic terminal

Technical field

The embodiments of the present invention relate to the field of touch technologies, and in particular, to an electrode abnormality processing method and device for a touch screen, a touch screen, and an electronic terminal.

Background technique

With the development of touch technology and terminal technology, more and more terminal devices use touch control for human-computer interaction. At present, the touch screens used in terminal devices mainly include capacitive touch screens and resistive touch screens. Among them, capacitive touch screens have been favored by more and more users for their good definition, light transmittance and touch.

The capacitive touch screen is composed of a touch sensor and a touch controller, wherein the touch sensor includes one or more capacitive sensors, each of which includes a driving electrode (TX electrode), a sensing electrode (RX electrode), and a driving electrode and a sensing electrode intersect to form A plurality of capacitor nodes, the drive electrodes can be set to emit signals of different frequencies, and the sensing electrodes are responsible for receiving signals acting on the touch sensors. When there is a touch, the capacitance value of the corresponding capacitor node changes, and the touch controller determines the corresponding touch position after detecting the change.

However, both the driving electrode and the sensing electrode are formed by ITO (tin-doped indium oxide) wiring, and some driving electrodes or sensing electrodes have electrode disconnection due to poor contact due to ITO process problems. When there is an electrode break, the capacitance change of the capacitor node corresponding to the broken electrode cannot be detected. If the electrode break is detected before leaving the factory, the faulty product can be eliminated to ensure the benign rate of the product. However, some driving electrodes or sensing electrodes have only slight contact, and they perform normally at the factory. After being used in the whole machine, after being used for a long time, collision, air corrosion, thermal expansion and contraction, etc., the driving electrode or the sensing electrode is caused. In the subsequent use, it is completely disconnected, and the electrode is broken, which causes problems such as disconnection, disconnection, and elimination, which causes the product to malfunction in subsequent use and reduces the user experience.

Summary of the invention

The embodiment of the invention provides an electrode abnormality processing method and device, a touch screen and an electronic terminal, so as to solve the problem that the existing touch screen has an electrode disconnection during use after leaving the factory, resulting in a touch screen failure.

According to a first aspect of the present invention, an electrode abnormality processing method is provided, including: determining a disconnect capacitance node corresponding to a disconnect electrode in a target capacitance node of a touch screen operated by a touch operation, wherein the disconnect electrode includes the touch screen An electrode in the capacitive sensor that is disconnected; determining a normal electrode adjacent to the circuit breaker electrode, and obtaining a determined capacitance value of the normal capacitance node adjacent to the circuit breaker node on the normal electrode; according to the normal capacitance node The capacitance value is capacitively compensated for the open capacitor node.

According to a second aspect of the embodiments of the present invention, there is provided an electrode abnormality processing apparatus, comprising: a determining module, configured to determine, in a target capacitance node of a touch screen operated by a touch operation, a disconnection capacitor node corresponding to a disconnection electrode, wherein The circuit breaker electrode includes an electrode in the capacitive sensor of the touch screen, and an acquisition module is configured to determine a normal electrode adjacent to the circuit breaker electrode, and obtain a determined normal capacitance node adjacent to the circuit breaker node on the normal electrode. The capacitor module is configured to perform capacitance compensation on the capacitor of the circuit breaker according to the capacitance value of the normal capacitor node.

According to a third aspect of the embodiments of the present invention, a touch screen includes: a touch controller and a touch sensor, the touch controller and the touch sensor being electrically connected; wherein the touch sensor is configured to collect a touch screen a capacitance value of the upper capacitor node; the touch controller is configured to acquire a capacitance value collected by the touch sensor, and perform an operation corresponding to the electrode abnormality processing method according to the first aspect according to the obtained capacitance value.

According to a fourth aspect of the embodiments of the present invention, there is also provided an electronic terminal comprising the touch screen of the third aspect.

According to the electrode abnormality processing scheme provided by the embodiment of the present invention, when the electrode screen is broken during use of the touch screen, the capacitance in the disconnecting electrode involved in the touch operation is performed through the capacitor node on the normal electrode adjacent to the disconnecting electrode. The node performs capacitance compensation. For touch operations, the touch position generally involves a plurality of adjacent electrodes, and the difference in capacitance values between corresponding capacitor nodes on the plurality of adjacent electrodes should be within a small range, thus, use and open circuit The capacitance value of the capacitor node on the normal electrode adjacent to the electrode can effectively compensate the capacitance of the corresponding capacitor node on the disconnecting electrode, thereby avoiding touch screen failures such as disconnection, disconnection, and elimination due to electrode disconnection.

DRAWINGS

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the embodiments or the description of the prior art will be briefly described below. Obviously, the drawings in the following description are only It is a certain embodiment of the present invention, and those skilled in the art can obtain other drawings according to the drawings without any inventive labor.

1 is a flow chart showing the steps of an electrode abnormality processing method according to a first embodiment of the present invention;

2 is a flow chart showing the steps of an electrode abnormality processing method according to Embodiment 2 of the present invention;

3 is a schematic view showing the position of a breaking electrode in the embodiment shown in FIG. 2;

4 is a schematic view showing the position of another circuit breaker electrode in the embodiment shown in FIG. 2;

FIG. 5 is a structural block diagram of an electrode abnormality processing apparatus according to Embodiment 3 of the present invention; FIG.

6 is a block diagram showing the structure of an electrode abnormality processing apparatus according to Embodiment 4 of the present invention;

FIG. 7 is a schematic structural diagram of a touch screen according to Embodiment 5 of the present invention.

Detailed ways

The present invention will be clearly and completely described in the following embodiments of the present invention. The described embodiments are only a part of the embodiments of the embodiments of the invention, and not all of the embodiments. All other embodiments obtained by a person of ordinary skill in the art based on the embodiments of the present invention without departing from the inventive scope are the scope of the embodiments of the present invention.

Embodiment 1

Referring to FIG. 1, a flow chart of steps of an electrode abnormality processing method according to a first embodiment of the present invention is shown.

The electrode abnormality processing method of this embodiment includes the following steps:

Step S102: It is determined that the target capacitance node of the touch screen operated by the touch operation includes an open circuit capacitance node corresponding to the disconnection electrode.

The disconnecting electrode includes an electrode that is broken in the capacitive sensor of the touch screen, and may be, for example, a driving electrode and/or a sensing electrode in which an open circuit occurs.

As described above, the capacitive touch screen is composed of a touch sensor and a touch controller. The touch sensor includes one or more capacitive sensors, and each of the capacitive sensors includes a driving electrode, a sensing electrode, and a plurality of capacitor nodes formed by crossing the driving electrode and the sensing electrode. . After each power-on of the touch screen, the capacitance value of the capacitor node is collected, and the corresponding electrode and/or capacitor node are detected according to the collected capacitance value, so that the abnormality of the electrode and/or the capacitor node can be detected, such as an electrode disconnection. Wait.

If there is a disconnecting electrode in the touch screen, when the touch operation touches the capacitor node on the disconnecting electrode, a corresponding capacitance compensation process, that is, the electrode abnormality processing solution provided by the embodiment of the present invention, is required.

Specifically, in this step, after detecting the touch operation on the touch screen, if it is determined that the operation position of the touch operation involves the position of the disconnection electrode, it may be determined that the target capacitance node of the touch screen operated by the touch operation includes an open circuit corresponding to the disconnection electrode. Capacitor node.

Step S104: determining a normal electrode adjacent to the circuit breaker electrode, and acquiring a capacitance value of the normal capacitance node adjacent to the circuit breaker node on the determined normal electrode.

In the embodiment of the present invention, the normal electrode means an electrode that does not have an open circuit and can normally detect the capacitance value of the capacitor node.

Determine which of the normal capacitor nodes adjacent to it or what its position is based on the location of the open circuit capacitor node. The capacitor node is formed by the intersection of the driving electrode and the sensing electrode. Generally, all the driving electrodes are wired in one direction such as a horizontal direction, and all the sensing electrodes are wired in one direction such as a vertical direction. A capacitive node operated by a touch operation usually includes a plurality of, and it is assumed that a capacitive node operated by a touch operation includes nine, which are formed by the intersection of the 2-4th driving electrode and the 2-4th sensing electrode, respectively, for convenience of description. , expressed as a matrix form such as

Among them, C ₂₂ , C ₃₂ , C ₄₂ capacitor nodes are capacitor nodes on the 2nd sensing electrode, C ₂₃ , C ₃₃ , C ₄₃ capacitor nodes are capacitor nodes on the 3rd sensing electrode, C ₂₄ , C ₃₄ , C ₄₄ capacitor node is the capacitor node on the 4th sensing electrode; C ₂₂ , C ₂₃ , C ₂₄ capacitor node is the capacitor node on the 2nd drive electrode, C ₃₂ , C ₃₃ , C ₃₄ capacitor node is the 3rd The capacitor node on the drive electrode, C ₄₂ , C ₄₃ , C ₄₄ capacitor node is the capacitor node on the 4th drive electrode. Take the disconnection of the No. 3 sensing electrode as an example. The C ₂₃ , C ₃₃ , and C ₄₃ capacitor nodes are the open circuit capacitor nodes. The normal electrode adjacent to the No. 3 sensing electrode is the No. 2 sensing electrode and the No. 4 sensing electrode. Correspondingly, the normal capacitor node adjacent to the C ₂₃ capacitor node is the C ₂₂ capacitor node on the No. 2 sensing electrode and C ₂₄ capacitor node on the 4th sensing electrode. Similarly, the normal capacitor node adjacent to the C ₃₃ capacitor node is the C ₃₂ capacitor node on the No. 2 sensing electrode and the C ₃₄ capacitor node on the No. 4 sensing electrode; the normal adjacent to the C ₄₃ capacitor node The capacitor node is the C ₄₂ capacitor node on the No. 2 sensing electrode and the C ₄₄ capacitor node on the No. 4 sensing electrode. The capacitance values of these normal capacitor nodes can be used as a reference for capacitance compensation of the open capacitor node.

Step S106: Capacitance compensation is performed on the circuit breaker node according to the capacitance value of the normal capacitor node.

For a touch operation, the touch position generally involves a plurality of adjacent electrodes, and the difference in capacitance values between the corresponding capacitor nodes on the plurality of adjacent electrodes should be within a small range, and therefore, The capacitance value of the capacitor node on the normal electrode adjacent to the circuit breaker electrode can effectively compensate the capacitance of the corresponding capacitor node on the circuit breaker electrode. That is, the capacitance value of the normal capacitor node is used as a reference, and a suitable capacitance value is set for the circuit breaker node.

According to the embodiment, when the electrode screen is broken during use of the touch screen, the capacitor node in the disconnecting electrode involved in the touch operation is capacitively compensated by the capacitor node on the normal electrode adjacent to the disconnecting electrode. For touch operations, the touch position generally involves a plurality of adjacent electrodes, and the difference in capacitance values between corresponding capacitor nodes on the plurality of adjacent electrodes should be within a small range, thus, use and open circuit The capacitance value of the capacitor node on the normal electrode adjacent to the electrode can effectively compensate the capacitance of the corresponding capacitor node on the disconnecting electrode, thereby avoiding touch screen failures such as disconnection, disconnection, and elimination due to electrode disconnection.

Embodiment 2

Referring to FIG. 2, a flow chart of steps of an electrode abnormality processing method according to a second embodiment of the present invention is shown.

Step S202: determining a disconnect electrode.

In determining a disconnecting electrode, in a feasible manner, after the touch screen is powered on, the capacitance value of a certain frame of the touch screen may be collected before establishing a stable reference value of the touch screen; and each electrode is determined from the collected capacitance values of the frame. The maximum capacitance value of the corresponding plurality of capacitance nodes; if the maximum capacitance value is less than the set capacitance value, the corresponding electrode is determined as the disconnection electrode. Wherein, the set capacitance value can be appropriately set by a person skilled in the art according to actual conditions, such as arbitrarily set within the range of 256-768, and optionally set to 512.

The stable reference value is a determination criterion of the touch screen touch detection. After determining the stable reference value, when determining whether the touch screen has a touch in a certain frame, comparing the capacitance value of the capacitance node of the frame with the stable reference value, whether the touch screen is implemented There are touch detection and judgment.

For example, before the stable reference value is established, the capacitance value of the capacitance node is collected for a certain frame of the touch screen, and then the maximum value of the capacitance values of all the capacitance nodes of each of the driving electrodes and each of the sensing electrodes is respectively viewed, that is, the maximum capacitance value. If the maximum capacitance value is less than 512, it is considered that the electrode is open and needs to be processed. Among them, the electrode that is broken may be a sensing electrode, a driving electrode, or both a sensing electrode and a driving electrode.

In one power-on use of the touch screen, after the disconnection electrode is determined, it will be used until the next power-on detection in the subsequent process. That is, the touch screen determines the tripping electrode once each time it is powered on.

Step S204: Determine a stable reference value of the touch screen.

In this embodiment, the determination of the stable reference value may be implemented by any suitable conventional means according to actual needs by a person skilled in the art, which is not limited by the embodiment of the present invention.

Step S206: determining that the target capacitance node of the touch screen operated by the touch operation includes an open circuit capacitance node.

Wherein, the breaking electrode comprises a driving electrode and/or a sensing electrode in which an open circuit occurs. Each electrode corresponds to a plurality of capacitor nodes. When the electrode is disconnected, its corresponding plurality of capacitor nodes become disconnect capacitor nodes, and one touch operation may involve one or more open capacitor nodes. That is, the open circuit capacitor node means all the capacitor nodes on the trip electrode. In one touch operation, the open circuit capacitor node involved in the touch operation is the open circuit capacitor node involved in the touch position.

Step S208: determining a normal electrode adjacent to the disconnect electrode.

In the embodiment of the present invention, the normal electrode adjacent to the driving electrode where the disconnection occurs is still the driving electrode, and the normal electrode adjacent to the sensing electrode where the disconnection occurs is still the sensing electrode. Therefore, in this step, a normal driving electrode adjacent to the driving electrode where the disconnection occurs may be determined, and/or a normal sensing electrode adjacent to the sensing electrode where the disconnection occurs.

In one possible manner, the normal electrode adjacent to the electrode where the disconnection occurs can be determined based on the position of the electrode where the circuit is broken.

For example, if the electrode that is broken is the driving electrode and there is an adjacent normal driving electrode on only one side of the driving electrode, at least two of the two normal driving electrodes are sequentially connected from the first normal driving electrode adjacent to the driving electrode. The drive electrode is determined to be a normal drive electrode adjacent to the drive electrode where the disconnection occurs. In this case, the open circuit drive electrode is located at the edge of the capacitive sensor, and the capacitance value of the corresponding capacitor node on at least two normal drive electrodes is used as a reference, so that the capacitance compensation of the open circuit capacitor node can be more accurate. It is of course within the scope of the inventive concept to use only one adjacent normal electrode on one side as a reference. For example, if the open circuit drive electrode is the No. 1 drive electrode at the edge of the capacitive sensor, it can be referenced by the normal drive electrodes No. 2 and No. 3 adjacent thereto. An open circuit driving electrode located at the edge of the capacitive sensor is shown in FIG. 3. In FIG. 3, the horizontal direction is the driving electrode, and the vertical direction is the sensing electrode. As can be seen from Fig. 3, the No. 00 drive electrode at the edge of the capacitive sensor is broken, and only one side is adjacent to the No. 01 drive electrode.

For another example, if the electrode that is broken is the driving electrode and the adjacent normal driving electrode exists on both sides of the driving electrode, then for each of the two sides of the driving electrode, the first one adjacent to the driving electrode A normal drive electrode begins, and at least one normal drive electrode is determined to be a normal drive electrode adjacent to the drive electrode where the open circuit occurs. In this case, the open circuit driving electrode is located in the middle of the capacitive sensor, and the normal driving electrodes are adjacent to both sides, and one or more adjacent normal driving electrodes are taken on each side for reference, and at least two normal driving electrodes are used. The capacitance value of the corresponding capacitor node is used as a reference to make the capacitance compensation of the circuit breaker node more accurate. For example, the open drive electrode is the No. 3 drive electrode, and the normal drive electrodes adjacent to the two sides are the No. 2 drive electrode and the No. 4 drive electrode, respectively, and the No. 2 and No. 4 normal drive electrodes are used as a reference.

For another example, if the electrode that is broken is an inductive electrode and the sensing electrode has adjacent normal sensing electrodes on only one side, at least two are sequentially connected from the first normal sensing electrode adjacent to the sensing electrode. The normal sensing electrode is determined to be a normal sensing electrode adjacent to the sensing electrode where the disconnection occurs. In this case, the open circuit sensing electrode is located at the edge of the capacitive sensor, and the capacitance value of the corresponding capacitor node on at least two normal sensing electrodes is used as a reference, so that the capacitance compensation of the circuit breaker node can be more accurate.

For another example, if the electrode that is disconnected is the sensing electrode and the adjacent normal sensing electrodes are present on both sides of the sensing electrode, then for each of the two sides of the sensing electrode, the first one adjacent to the sensing electrode A normal sensing electrode begins, and at least one normal sensing electrode is determined to be a normal sensing electrode adjacent to the sensing electrode where the disconnection occurs. In this case, the open circuit sensing electrode is located in the middle of the capacitive sensor, and the normal sensing electrodes are adjacent to both sides, and one or more adjacent normal sensing electrodes are taken on each side for reference, and at least two normal sensing electrodes are used. The capacitance value of the corresponding capacitor node is used as a reference to make the capacitance compensation of the circuit breaker node more accurate. A disconnection sensing electrode located in the middle of the capacitive sensor is shown in FIG. 4. In FIG. 4, the horizontal direction is the driving electrode, and the vertical direction is the sensing electrode. As can be seen from FIG. 4, the No. 01 sensing electrode located in the middle of the capacitive sensor is broken, one side is adjacent to the No. 00 sensing electrode, and the other side is adjacent to the No. 02 sensing electrode.

Optionally, the determined normal driving electrodes adjacent to the driving electrode that is broken are two normal driving electrodes; and/or the determined normal sensing electrodes adjacent to the sensing electrodes that are broken are two normal sensing electrodes. By using two adjacent normal electrodes, the amount of data calculation can be reduced, and the capacitance compensation efficiency can be improved. However, it will be apparent to those skilled in the art that in actual use, a greater number of normal electrodes than two normal electrodes can be selected as needed.

Step S210: Acquire a capacitance value of a normal capacitor node adjacent to the circuit breaker node on the determined normal electrode.

The method includes: obtaining a capacitance value of a normal capacitor node adjacent to the circuit breaker node on the determined normal driving electrode, and/or obtaining a capacitance value of a normal capacitor node adjacent to the circuit breaker node on the determined normal sensing electrode.

As described in the example in the first embodiment, for each of the open circuit capacitor nodes, there is a corresponding normal capacitor node, such as a capacitor node on the open circuit sensing electrode, and the horizontal direction has corresponding normal sensing electrodes on both sides. Capacitor node on.

In this embodiment, the capacitance value of the normal capacitance node may be the difference between the stable reference value of the normal capacitance node and the current capacitance value. The touch screen determines whether the capacitor node is touched according to the difference between the stable reference value of the capacitor node and the current capacitor value, and uses the difference as a basis for performing capacitance compensation, and can directly determine the touch position according to the result of the capacitor compensation, thereby improving capacitance compensation and Touch detection efficiency. However, it is not limited thereto. In practical applications, the capacitance value of the normal capacitor node may also be a stable reference value or a current capacitance value. When the reference value or the current capacitance value is stabilized, after the capacitor compensation is performed on the circuit breaker node, the corresponding processing can be performed to realize the touch detection of the circuit breaker node.

Step S212: Capacitance compensation is performed on the circuit breaker node according to the capacitance value of the normal capacitor node.

In a feasible manner, when the difference between the stable reference value of the normal capacitor node and the current capacitance value is used as the capacitance value of the normal capacitor node, the maximum capacitance value of the adjacent normal capacitor node may be used for each of the open capacitor nodes. The relationship between the minimum capacitance value and the current circuit breaker node is capacitively compensated. For example, the current open capacitor node can be capacitively compensated according to the ratio between the maximum capacitance value and the minimum capacitance value of the adjacent normal capacitor node. Since the maximum capacitance value and the minimum capacitance value are the difference between the stable reference value and the current capacitance value, based on the ratio of the maximum capacitance value to the minimum capacitance value, the touch position can be accurately determined to provide a more accurate reference for capacitance compensation. . The smaller the ratio, the more consistent the states of adjacent normal capacitor nodes (such as being touched or not touched); the larger the ratio, the more inconsistent the state of adjacent normal capacitor nodes (eg, one side is touched one) The side is not touched).

Further, optionally, it may be determined whether a ratio between the maximum capacitance value and the minimum capacitance value is greater than a set threshold; if not greater, the current open capacitance node is capacitively compensated according to the ratio; if greater than, the ratio is The set threshold is set, and the current open capacitor node is capacitively compensated according to the set ratio. The setting of the threshold may be appropriately set by a person skilled in the art according to the actual situation, which is not limited by the embodiment of the present invention. For example, it can be set to 3-5, and optionally, it can be 4. If the ratio is greater than the set threshold, the state difference between adjacent normal capacitor nodes is large, and the ratio is set to a set threshold to simplify subsequent capacitor compensation processing and improve the efficiency of capacitor compensation processing.

As mentioned earlier, the open circuit electrode may be located at the edge of the capacitive sensor or in the middle of the capacitive sensor.

In the case where the breaking electrode is located at the edge position of the capacitive sensor, that is, if only one side of the electrode having the open circuit has an adjacent normal electrode, the current breaking capacitor node may be capacitive according to the ratio and the maximum capacitance value. make up. That is, the maximum capacitance value of the normal capacitance node adjacent to the circuit breaker capacitor node on the normal electrode is determined from at least two normal electrodes adjacent to the circuit breaker electrode, and the circuit breaker capacitor is used for reference to the maximum capacitance value and the ratio value. Capacitance compensation of the node. For example, a second compensation value is calculated according to the ratio and the maximum capacitance value; and the second compensation value is used as a capacitance value of a current circuit breaker node. Specifically, according to the ratio, the maximum capacitance value is processed by using a corresponding coefficient or an appropriate algorithm, and the processed result is used as a capacitance value of the breaking capacitor node.

And in the case where the disconnecting electrode is located at an intermediate position of the capacitive sensor, that is, if there is an adjacent normal electrode on both sides of the electrode in which the disconnection occurs, according to the ratio, the maximum capacitance value, and the minimum capacitance value, The current open circuit capacitor node performs capacitance compensation. In the case where there are normal electrodes on both sides, the positions of the normal electrodes and the disconnecting electrodes on both sides are relatively close. The breaking capacitor node needs to comprehensively consider the capacitance value of the adjacent normal capacitor nodes, so that the capacitance compensation is more accurate and objective. . For example, a first compensation value is calculated according to the ratio, the maximum capacitance value, and the minimum capacitance value; and the first compensation value is used as a capacitance value of a current circuit breaker node. Specifically, according to the ratio, different coefficients are set for the maximum capacitance value and the minimum capacitance value respectively, and the maximum capacitance value and the minimum capacitance value are processed according to the set coefficient and an appropriate algorithm, and the processed result is used as the breaking capacitance node. The value of the capacitor.

Hereinafter, the above process will be described by way of specific examples.

(1) The breaking electrode is located at the edge of the capacitive sensor (only one normal electrode exists next to it)

In this example, the determination of the breaking electrode is as described in the above step S202. In addition, in this embodiment, the difference between the stable reference value of the normal capacitor node and the current capacitance value is used as the capacitance value of the normal capacitor node. Based on the above settings, the following operations are performed for each of the open capacitor nodes:

Step 1: Determine the open circuit capacitor node to be processed.

In this step, the open circuit capacitor node to be processed is the open circuit capacitor node involved in the touch position.

The second step: obtaining the difference between the normal capacitor node corresponding to the open circuit capacitor node on the normal electrode beside the circuit breaker electrode is A1, and the difference between the normal capacitor nodes corresponding to the circuit breaker capacitor node on the normal electrode next to the secondary electrode is A2.

In this example, the difference is the difference between the stable reference value of the capacitor node and the current capacitance value.

For example, if the capacitor No. 01 (ie, the open circuit capacitor node) of the No. 00 driving electrode in FIG. 3 is processed, the difference between the No. 01 capacitor node of the No. 01 driving electrode and the No. 02 driving electrode 01 are obtained. The difference between the capacitor nodes.

Step 3: Determine the larger value in A1 and A2. If A1>A2, perform the fourth step; if A1<A2, perform the fifth step.

Step 4: Calculate Ratio_real=A1/A2 to determine whether Ratio_real is greater than 4. If greater than, set Ratio_real (for example, reassign) to 4, and use the formula [A1+A1*(Ratio_real/4)] to disconnect the capacitor node. Capacitance compensation is performed, that is, the formula result is used as the compensation value of the breaking capacitor node (the difference between the stable reference value and the current capacitance value); if not greater, the Ratio_real is calculated according to Ratio_real=A1/A2 and directly passes the formula [A1+A1* (Ratio_real/4)], capacitor compensation for the open capacitor node. Among them, the setting of the constant 4 is used to limit the maximum value of Ratio_real to 4.

Step 5: Calculate Ratio_real=A2/A1 to determine whether Ratio_real is greater than 4. If greater than, set Ratio_real (for example, reassign) to 4, and apply capacitance to the open capacitor node by formula A2*(5-Ratio_real)/4. Compensation; if it is not greater than, calculate the Ratio_real according to Ratio_real=A2/A1 and directly compensate the capacitor of the open circuit capacitor by the formula A2*(5-Ratio_real)/4, that is, the formula result is used as the compensation value of the breaking capacitor node (stable The difference between the reference value and the current capacitance value). Wherein, the setting of the constant 4 corresponds to the maximum value 4 of the Ratio_real, and the setting of the constant 5 corresponds to the maximum value 5 of the possible range 3-5 of the Ratio_set, and Ratio_set is a possible range of the set ratio.

In the above process, each specific numerical value is an exemplary description. In the specific application, those skilled in the art can refer to the description in the embodiments of the present invention and make appropriate modifications and uses.

(2) The disconnecting electrode is located in the middle position of the capacitive sensor (ie, there are normal electrodes on the left and right sides of the disconnecting electrode or normal electrodes in the upper and lower sides)

In this example, the determination of the breaking electrode is as described in the above step S202. In addition, in this embodiment, the breaking electrode is used as the sensing electrode, and the normal electrode is present on the left and right sides as an example, and the stable reference value of the normal capacitor node is adopted. The difference from the current capacitance value is taken as the capacitance value of the normal capacitor node. Based on the above settings, the following operations are performed for each of the open capacitor nodes:

Step 1: Determine the open circuit capacitor node to be processed.

The second step: respectively obtaining the difference of the normal capacitance node corresponding to the open circuit capacitor node on the left and right sides of the circuit breaker electrode, the difference on the left side is A1, and the difference on the right side is A2.

In this example, the difference is the difference between the stable reference value of the capacitor node and the current capacitance value. On the normal sensing electrodes on the left and right sides of the disconnected sensing electrodes, the capacitor node at the same horizontal position as the breaking capacitor node is a normal capacitor node corresponding to the breaking capacitor node.

For example, if the No. 01 capacitor node (ie, the open circuit capacitor node) of the No. 01 sensing electrode in FIG. 4 is processed, the difference between the No. 01 capacitor node of the No. 00 driving electrode and the No. 02 driving electrode 01 are obtained. The difference between the capacitor nodes.

Step 3: Determine the larger and lower values in A1 and A2.

That is, the larger value is Max = MAX (A1, A2), and the minimum value is Min = MIN (A1, A2).

Step 4: Calculate Ratio_real=Max/Min to determine whether Ratio_real is greater than 4. If greater than, set Ratio_real (for example, reassign) to 4, by the formula [(3+Ratio_real)*Max+(5-Ratio_real)*Min] /8, Capacitance compensation is performed on the breaking capacitor node, that is, the formula result is used as the compensation value of the breaking capacitor node (the difference between the stable reference value and the current capacitance value); if not greater, the Ratio_real=Max/Min is calculated directly after the Ratio_real Capacitance compensation is performed on the circuit breaker node by the formula [(3+Ratio_real)*Max+(5-Ratio_real)*Min]/8, that is, the formula result is used as the compensation value of the circuit breaker node (the difference between the stable reference value and the current capacitance value) ). Wherein the settings of the constants 3 and 5 respectively correspond to the minimum value 3 and the maximum value 5 of the possible range 3-5 of Ratio_set (Ratio_set is the possible range of the set ratio); the setting of the constant 8 corresponds to the maximum value 4 of the Ratio_real, Since the normal electrodes on both sides are considered comprehensively, 2 times of 4 is 8 .

In the above process, each specific numerical value is an exemplary description. In the specific application, those skilled in the art can refer to the description in the embodiments of the present invention and make appropriate modifications and uses. In addition, the above multiple embodiments are described by taking two adjacent normal electrodes as an example. When more normal electrodes are used, the formulas and parameters can be adjusted after referring to the principles in the above embodiments.

In addition, it should be noted that if at least two adjacent open electrodes are present at the same time, the at least two open electrodes can be determined as a whole, and the position in the capacitive sensor can be determined and processed. If there are multiple disconnecting electrodes at the same time but the plurality of disconnecting electrodes are not adjacent, for example, there are two non-adjacent driving electrodes or two non-adjacent sensing electrodes at the same time, respectively, for each driving electrode or sensing electrode The solution provided by the embodiment of the invention is processed. Similarly, if the driving electrode and the sensing electrode are disconnected at the same time, the driving electrode and the sensing electrode of the disconnection may be processed according to the solution provided by the embodiment of the invention.

According to the embodiment, the performance of the touch screen of the circuit breaker electrode is significantly improved by the circuit identification and the capacitance compensation process; the ratio of the maximum value and the minimum value of the corresponding normal capacitance node on the normal electrode adjacent to the circuit breaker electrode can be compared. Goodly identify the touch position, fit the capacitance of the open circuit capacitor node close to the real capacitance, improve the performance of the touch screen and capacitor compensation, and avoid the touch screen failure.

Embodiment 3

Referring to FIG. 5, a block diagram of a structure of an electrode abnormality processing apparatus according to a third embodiment of the present invention is shown.

The electrode abnormality processing device of the present embodiment includes: a determining module 302, configured to determine, in the target capacitance node of the touch screen operated by the touch operation, a disconnection capacitor node corresponding to the disconnection electrode, wherein the disconnection electrode includes a disconnection of the capacitive sensor of the touch screen An obtaining module 304 is configured to determine a normal electrode adjacent to the disconnecting electrode, and obtain a capacitance value of a normal capacitor node adjacent to the circuit breaker node on the determined normal electrode; and a compensation module 306 configured to calculate a capacitance of the normal capacitor node The value is capacitively compensated for the open capacitor node.

Embodiment 4

Referring to Fig. 6, there is shown a block diagram of a structure of an electrode abnormality processing apparatus according to a fourth embodiment of the present invention.

The electrode abnormality processing device of this embodiment includes: a determining module 402, configured to determine a circuit breaker node corresponding to a pole including a disconnection in a target capacitance node of the touch screen operated by the touch operation, wherein the circuit breaker including the touch screen has an open circuit in the capacitive sensor The obtaining module 404 is configured to determine a normal electrode adjacent to the disconnecting electrode, and obtain a capacitance value of a normal capacitor node adjacent to the circuit breaker node on the determined normal electrode; and a compensation module 406, configured to be used according to the normal capacitor node The capacitance value is capacitively compensated for the open capacitor node.

Optionally, the obtaining module 404 is configured to determine a normal driving electrode adjacent to the driving electrode where the disconnection occurs, and/or a normal sensing electrode adjacent to the sensing electrode where the disconnection occurs; acquiring the determined normal driving electrode, and disconnecting The capacitance value of the normal capacitor node adjacent to the capacitor node, and/or the capacitance value of the normal capacitor node adjacent to the circuit breaker node on the determined normal sensing electrode.

Optionally, the obtaining module 404 includes: a normal electrode determining module 4042, configured to determine a normal electrode adjacent to the electrode where the disconnection occurs according to the position of the electrode where the disconnection occurs; and a capacitance value acquiring module 4044, configured to acquire the determined normal electrode The capacitance value of the normal capacitor node adjacent to the open circuit capacitor node.

Optionally, the normal electrode determining module 4042 includes:

The first determining module 40422 is configured to: if the electrode that is disconnected is the driving electrode and the adjacent normal driving electrode exists on only one side of the driving electrode, start from the first normal driving electrode adjacent to the driving electrode And determining at least two normal driving electrodes connected in sequence as normal driving electrodes adjacent to the driving electrode on which the disconnection occurs;

a second determining module 40424, configured to: if an electrode that is broken is a driving electrode and an adjacent normal driving electrode exists on both sides of the driving electrode, for each side of the driving electrode The first normal driving electrode adjacent to the driving electrode starts, and the at least one normal driving electrode is determined as a normal driving electrode adjacent to the driving electrode where the disconnection occurs;

The third determining module 40426 is configured to:

If the electrode that is broken is an inductive electrode and the sensing electrode has adjacent normal sensing electrodes on only one side, at least two of the two normal connected electrodes adjacent to the sensing electrode will be connected in sequence. The sensing electrode is determined to be a normal sensing electrode adjacent to the sensing electrode where the disconnection occurs;

The fourth determining module 40428 is configured to: if the electrode that is broken is an inductive electrode and the adjacent normal sensing electrode exists on both sides of the sensing electrode, for each side of the sensing electrode The first normal sensing electrode adjacent to the sensing electrode begins, and the at least one normal sensing electrode is determined as a normal sensing electrode adjacent to the sensing electrode where the disconnection occurs.

It should be noted that, in order to facilitate the clear description of the solution, the normal electrode determining module 4042 is logically divided into a first determining module 40422, a second determining module 40424, a third determining module 40426, and a fourth determining in this embodiment. The module 40428, but it should be understood by those skilled in the art that in the actual application, the first, second, third, and fourth determining modules may be combined or set independently, which is not limited in the embodiment of the present invention.

Optionally, the determined normal driving electrodes adjacent to the driving electrode that is broken are two normal driving electrodes; and/or the determined normal sensing electrodes adjacent to the sensing electrodes that are broken are two normal sensing electrodes.

Optionally, the compensation module 406 is configured to perform capacitance compensation on the current open circuit capacitance node according to the relationship between the maximum capacitance value and the minimum capacitance value of the adjacent normal capacitance node for each of the open circuit capacitance nodes.

Optionally, the relationship between the maximum capacitance value and the minimum capacitance value is a ratio between the maximum capacitance value and the minimum capacitance value.

Optionally, the compensation module 406 is configured to determine whether a ratio between the maximum capacitance value and the minimum capacitance value is greater than a set threshold; if not greater, the current open circuit capacitance node is capacitively compensated according to the ratio; if greater, the The ratio is set to the set threshold, and the current open capacitor node is capacitively compensated according to the set ratio.

Optionally, the compensation module 406 is configured to perform capacitance compensation on the current open circuit capacitor node according to the ratio, the maximum capacitance value, and the minimum capacitance value if there are adjacent normal electrodes on both sides of the electrode where the disconnection occurs.

Optionally, the compensation module 406 is configured to calculate a first compensation value according to the ratio, the maximum capacitance value, and the minimum capacitance value if an adjacent normal electrode exists on both sides of the electrode where the disconnection occurs; The first compensation value is used as the capacitance value of the current circuit breaker node.

Optionally, the compensation module 406 is configured to perform capacitance compensation on the current open circuit capacitance node according to the ratio and the maximum capacitance value if there is an adjacent normal electrode on only one side of the electrode where the disconnection occurs.

Optionally, the compensation module 406 is configured to calculate a second compensation value according to the ratio and the maximum capacitance value if there is an adjacent normal electrode on only one side of the electrode where the disconnection occurs; and the second compensation value is used as The capacitance value of the current open circuit capacitor node.

Optionally, the obtained capacitance value of the normal capacitance node is a difference between a stable reference value of the normal capacitance node and a current capacitance value.

Optionally, the electrode abnormality processing device of the embodiment further includes: an open circuit detecting module 408, configured to collect a capacitance value of a certain frame of the touch screen before establishing a stable reference value of the touch screen after the touch screen is powered on; In the frame capacitance value, the maximum capacitance value of the plurality of capacitance nodes corresponding to each electrode is determined; if the maximum capacitance value is less than the set capacitance value, the corresponding electrode is determined as the disconnection electrode.

The electrode abnormality processing device of the present embodiment is used to implement the corresponding electrode abnormality processing method in the foregoing plurality of method embodiments, and has the beneficial effects of the corresponding method embodiments, and details are not described herein again.

Embodiment 5

Referring to FIG. 7, a schematic structural diagram of a touch screen according to Embodiment 5 of the present invention is shown.

The touch screen of the present embodiment includes a touch controller 502 and a touch sensor 504, and the touch controller 502 and the touch sensor 504 are electrically connected.

The touch sensor 504 includes a plurality of driving electrodes 5042 and a plurality of sensing electrodes 5044 vertically distributed with the driving electrodes 5042. The driving electrode 5042 is disposed in the horizontal direction (lateral direction), and the sensing electrode 5044 is disposed in the vertical direction (longitudinal direction), wherein the node at which the driving electrode 5042 and the sensing electrode 5044 meet forms a capacitance node.

The touch controller 502 inputs the driving signal of the preset frequency to the driving electrode 5042 according to a certain driving manner. After the driving signal passes through the capacitive sensor, the sensing signal is formed by the sensing electrode 5044 and returned to the touch controller 502. The touch controller 502 converts the sensing signal into a digital signal through an analog-to-digital converter (ADC) disposed inside thereof, and parses the digital signal to obtain a capacitance value corresponding to each capacitance node.

In this embodiment, the touch sensor 504 collects the capacitance value of the capacitive node on the touch screen; the touch controller 502 acquires the capacitance value collected by the touch sensor 504, and performs the electrode abnormality according to any one of the first to second embodiments according to the obtained capacitance value. The operation corresponding to the processing method.

For example, the touch sensor 504 collects a capacitance value of a capacitance node of the touch screen when a finger performs a touch operation on the touch screen; the touch controller 502 determines that the target capacitance node of the touch screen operated by the touch operation includes a disconnection capacitance node corresponding to the disconnection electrode, wherein the open circuit The electrode includes an electrode that is broken in the capacitive sensor of the touch screen; determines a normal electrode adjacent to the broken electrode, and obtains a normal capacitance node adjacent to the open circuit capacitor node on the determined normal electrode from the capacitance value collected by the touch sensor 504 Capacitance value; capacitor compensation is performed on the circuit breaker node according to the capacitance value of the normal capacitor node.

With the touch screen of the embodiment, when the electrode screen is broken during use in the factory after the shipment, the capacitor node in the disconnecting electrode involved in the touch operation is capacitively compensated by the capacitor node on the normal electrode adjacent to the disconnecting electrode. For touch operations, the touch position generally involves a plurality of adjacent electrodes, and the difference in capacitance values between corresponding capacitor nodes on the plurality of adjacent electrodes should be within a small range, thus, use and open circuit The capacitance value of the capacitor node on the normal electrode adjacent to the electrode can effectively compensate the capacitance of the corresponding capacitor node on the disconnecting electrode, thereby avoiding touch screen failures such as disconnection, disconnection, and elimination due to electrode disconnection.

In addition, an embodiment of the present invention further provides an electronic terminal including the touch screen described in the foregoing embodiment.

The device embodiments described above are merely illustrative, wherein the modules described as separate components may or may not be physically separate, and the components displayed as modules may or may not be physical modules, ie may be located A place, or it can be distributed to multiple network modules. Some or all of the modules may be selected according to actual needs to achieve the purpose of the solution of the embodiment. Those of ordinary skill in the art can understand and implement without deliberate labor.

Through the description of the above embodiments, those skilled in the art can clearly understand that the embodiments can be implemented by means of software plus a necessary general hardware platform, and of course, by hardware. Based on such an understanding, portions of the above technical solutions that contribute substantially or to the prior art may be embodied in the form of a software product that may be stored in a computer readable storage medium, the computer readable record The medium includes any mechanism for storing or transmitting information in a form readable by a computer (eg, a computer). For example, a machine-readable medium includes read only memory (ROM), random access memory (RAM), magnetic disk storage media, optical storage media, flash storage media, electrical, optical, acoustic, or other forms of propagation signals (eg, carrier waves) , an infrared signal, a digital signal, etc., etc., the computer software product comprising instructions for causing a computer device (which may be a personal computer, server, or network device, etc.) to perform the various embodiments or portions of the embodiments described Methods.

It should be noted that the above embodiments are only used to explain the technical solutions of the embodiments of the present invention, and are not limited thereto; although the embodiments of the present invention are described in detail with reference to the foregoing embodiments, those skilled in the art should understand The technical solutions described in the foregoing embodiments may be modified, or some of the technical features may be equivalently replaced; and the modifications or substitutions do not deviate from the technical solutions of the embodiments of the present invention. Spirit and scope.

Claims

An electrode abnormality processing method includes:

Determining, in the target capacitance node of the touch screen operated by the touch operation, a disconnection capacitor node corresponding to the disconnection electrode, wherein the disconnection electrode is an electrode in the capacitive sensor of the touch screen;

Determining a normal electrode adjacent to the circuit breaker electrode, and obtaining a capacitance value of the normal capacitor node adjacent to the circuit breaker node on the determined normal electrode;

Capacitor compensation is performed on the open circuit capacitor node according to a capacitance value of the normal capacitor node.
The method of claim 1, wherein determining a normal electrode adjacent to the circuit breaker electrode, and obtaining a determined capacitance value of the normal capacitance node adjacent to the circuit breaker node on the normal electrode comprises:

Determining a normal drive electrode adjacent to the drive electrode where the open circuit occurs, and/or a normal sense electrode adjacent to the sense electrode where the open circuit occurs;

Obtaining, on the determined normal driving electrode, a capacitance value of a normal capacitance node adjacent to the circuit breaker node, and/or acquiring a normal adjacent to the circuit breaker node on the determined normal sensing electrode The capacitance value of the capacitor node.
The method of claim 2 wherein said determining a normal electrode adjacent to the electrode where the disconnection occurs comprises:

A normal electrode adjacent to the electrode where the disconnection occurs is determined based on the position of the electrode where the disconnection occurs.
The method according to claim 3, wherein said determining a normal electrode adjacent to the electrode in which the disconnection occurs according to the position of the electrode where the disconnection occurs includes:

If the electrode that is broken is the driving electrode and the driving electrode has adjacent normal driving electrodes on only one side, at least two of the two normal driving electrodes are sequentially connected from the first normal driving electrode adjacent to the driving electrode. The drive electrode is determined to be a normal drive electrode adjacent to the drive electrode where the open circuit occurs;

If the electrode that is broken is the driving electrode and the adjacent normal driving electrode exists on both sides of the driving electrode, for each of the two sides of the driving electrode, the first one adjacent to the driving electrode Starting from a normal drive electrode, determining at least one normal drive electrode as a normal drive electrode adjacent to the drive electrode where the open circuit occurs;

If the electrode that is broken is an inductive electrode and the sensing electrode has adjacent normal sensing electrodes on only one side, at least two of the two normal connected electrodes adjacent to the sensing electrode will be connected in sequence. The sensing electrode is determined to be a normal sensing electrode adjacent to the sensing electrode where the disconnection occurs;

If the electrode that is broken is the sensing electrode and the adjacent normal sensing electrode exists on both sides of the sensing electrode, for each of the two sides of the sensing electrode, the first one adjacent to the sensing electrode A normal sensing electrode begins, and at least one normal sensing electrode is determined to be a normal sensing electrode adjacent to the sensing electrode where the disconnection occurs.
The method of claim 4, wherein the determined normal drive electrodes adjacent to the drive electrode where the trip occurs are two normal drive electrodes; and/or the determined normal sense electrodes adjacent to the sense electrodes in which the trip occurs For two normal sensing electrodes.
The method of any of claims 1-5, wherein capacitively compensating the circuit breaker node according to the capacitance value of the normal capacitance node comprises:

For each open capacitor node, the current open capacitor node is capacitively compensated according to the relationship between the maximum capacitance value and the minimum capacitance value of the adjacent normal capacitor node.
The method of claim 6, wherein the relationship between the maximum capacitance value and the minimum capacitance value is a ratio between the maximum capacitance value and the minimum capacitance value.
The method of claim 7, wherein the capacitive compensation of the current open capacitance node according to the relationship between the maximum capacitance value and the minimum capacitance value of the adjacent normal capacitance node comprises:

Determining whether a ratio between the maximum capacitance value and the minimum capacitance value is greater than a set threshold;

If not greater than, the capacitor is compensated for the current open capacitor node according to the ratio;

If it is greater than, the ratio is set to the set threshold, and the current open capacitor node is capacitively compensated according to the set ratio.
The method of claim 8 wherein said capacitively compensating said current open capacitance node comprises:

If there is an adjacent normal electrode on both sides of the electrode where the disconnection occurs, the current circuit breaker node is capacitively compensated according to the ratio, the maximum capacitance value, and the minimum capacitance value.
The method of claim 9, wherein the capacitive compensation is performed on the current open capacitance node according to the ratio, the maximum capacitance value, and the minimum capacitance value, and the current circuit breaker node is capacitively compensated, including:

And calculating, according to the ratio, the maximum capacitance value, and the minimum capacitance value, a first compensation value; and using the first compensation value as a capacitance value of a current circuit breaker node.
The method of claim 8 wherein said capacitively compensating said current open capacitance node comprises:

If there is an adjacent normal electrode on only one side of the electrode where the disconnection occurs, the current open capacitance node is capacitively compensated according to the ratio and the maximum capacitance value.
The method of claim 11 wherein said capacitively compensating said current open capacitance node based on said ratio and said maximum capacitance value comprises:

Calculating a second compensation value according to the ratio and the maximum capacitance value; and using the second compensation value as a capacitance value of a current circuit breaker node.
The method according to any one of claims 1 to 12, wherein the obtained capacitance value of the normal capacitance node is a difference between a stable reference value of the normal capacitance node and a current capacitance value.
The method according to any one of claims 1 to 13, wherein before the determining, in the target capacitance node of the touch screen operated by the touch operation, the disconnection capacitance node corresponding to the disconnection electrode, the method further comprises:

After the touch screen is powered on, before acquiring a stable reference value of the touch screen, collecting a capacitance value of a certain frame of the touch screen;

Determining, from the collected one-frame capacitance value, a maximum capacitance value of the plurality of capacitance nodes corresponding to each electrode;

If the maximum capacitance value is less than the set capacitance value, the corresponding electrode is determined as the disconnection electrode.
An electrode abnormality processing device includes:

a determining module, configured to determine, in a target capacitive node of the touch screen operated by the touch operation, a disconnecting capacitor node corresponding to the disconnecting electrode, wherein the disconnecting electrode comprises an electrode in the capacitive sensor of the touch screen that is disconnected;

An obtaining module, configured to determine a normal electrode adjacent to the disconnecting electrode, and obtain a capacitance value of the normal capacitor node adjacent to the circuit breaker node on the determined normal electrode;

And a compensation module, configured to perform capacitance compensation on the circuit breaker node according to a capacitance value of the normal capacitor node.
The apparatus according to claim 15, wherein said acquisition module is configured to determine a normal drive electrode adjacent to the drive electrode where the disconnection occurs, and/or a normal sense electrode adjacent to the sense electrode in which the open circuit is generated; Determining, on the normal driving electrode, a capacitance value of a normal capacitance node adjacent to the circuit breaker node, and/or obtaining a normal capacitance adjacent to the circuit breaker node on the normal sensing electrode The capacitance value of the node.
The apparatus of claim 16 wherein said obtaining module comprises:

a normal electrode determining module, configured to determine a normal electrode adjacent to the electrode where the disconnection occurs according to the position of the electrode where the disconnection occurs;

And a capacitance value obtaining module, configured to acquire a capacitance value of the normal capacitor node adjacent to the circuit breaker node on the determined normal electrode.
The apparatus of claim 17, wherein the normal electrode determining module comprises:

a first determining module, configured to: if an electrode that is broken is a driving electrode and the driving electrode has an adjacent normal driving electrode on only one side, starting from a first normal driving electrode adjacent to the driving electrode, The at least two normal driving electrodes connected in sequence are determined as normal driving electrodes adjacent to the driving electrode on which the disconnection occurs;

a second determining module, configured to: if an electrode that is broken is a driving electrode and an adjacent normal driving electrode exists on both sides of the driving electrode, for each of the two sides of the driving electrode, Starting with a first normal drive electrode adjacent to the drive electrode, determining at least one normal drive electrode as a normal drive electrode adjacent to the drive electrode where the open circuit occurs;

a third determining module, configured to: if the electrode that is broken is an inductive electrode, and the sensing electrode has an adjacent normal sensing electrode on only one side, starting from the first normal sensing electrode adjacent to the sensing electrode, The at least two normal sensing electrodes connected in sequence are determined as normal sensing electrodes adjacent to the sensing electrodes where the disconnection occurs;

a fourth determining module, configured to: if the electrode that is broken is an inductive electrode and the adjacent normal sensing electrode exists on both sides of the sensing electrode, for each side of the sensing electrode The first normal sensing electrode adjacent to the sensing electrode begins, and the at least one normal sensing electrode is determined to be a normal sensing electrode adjacent to the sensing electrode where the disconnection occurs.
The apparatus according to claim 18, wherein the determined normal drive electrode adjacent to the drive electrode where the disconnection occurs is two normal drive electrodes; and/or the determined normal sense electrode adjacent to the sense electrode in which the open circuit is generated For two normal sensing electrodes.
The apparatus according to any one of claims 15 to 19, wherein the compensation module is configured, for each of the open circuit capacitance nodes, according to a relationship between a maximum capacitance value and a minimum capacitance value of adjacent normal capacitance nodes, Capacitor compensation for the current open capacitor node.
The apparatus of claim 20, wherein the relationship between the maximum capacitance value and the minimum capacitance value is a ratio between the maximum capacitance value and the minimum capacitance value.
The device of claim 21, wherein the compensation module is configured to determine whether a ratio between the maximum capacitance value and the minimum capacitance value is greater than a set threshold; if not greater than, the ratio is The current open circuit capacitor node performs capacitance compensation; if it is greater than, the ratio is set to the set threshold, and the current open capacitor node is capacitively compensated according to the set ratio.
The device according to claim 22, wherein the compensation module is configured to: if there is an adjacent normal electrode on both sides of the electrode where the disconnection occurs, according to the ratio, the maximum capacitance value, and the minimum capacitance value Capacitor compensation for the current open capacitor node.
The device according to claim 23, wherein the compensation module is configured to: if there is an adjacent normal electrode on both sides of the electrode where the disconnection occurs, according to the ratio, the maximum capacitance value, and the minimum capacitance value Calculating a first compensation value; using the first compensation value as a capacitance value of a current circuit breaker node.
The device according to claim 22, wherein the compensation module is configured to: if there is an adjacent normal electrode on only one side of the electrode where the disconnection occurs, to the current open circuit capacitance node according to the ratio and the maximum capacitance value Perform capacitance compensation.
The device according to claim 25, wherein the compensation module is configured to calculate a second compensation value according to the ratio and the maximum capacitance value if only one side of the electrode having an open circuit has an adjacent normal electrode And using the second compensation value as the capacitance value of the current circuit breaker node.
The apparatus according to any one of claims 15 to 26, wherein the obtained capacitance value of the normal capacitance node is a difference between a stable reference value of the normal capacitance node and a current capacitance value.
The device of any of claims 15-27, wherein the device further comprises:

The circuit breaker detection module is configured to collect a capacitance value of a certain frame of the touch screen before establishing a stable reference value of the touch screen after the touch screen is powered on; and determine each of the collected frame capacitance values The maximum capacitance value of the plurality of capacitor nodes corresponding to the electrode; if the maximum capacitance value is less than the set capacitance value, the corresponding electrode is determined as the disconnect electrode.
A touch screen includes: a touch controller and a touch sensor, the touch controller and the touch sensor being electrically connected;

among them,

The touch sensor is configured to collect a capacitance value of a capacitor node on the touch screen;

The touch controller is configured to acquire a capacitance value collected by the touch sensor, and perform an operation corresponding to the electrode abnormality processing method according to any one of claims 1-14 according to the obtained capacitance value.
An electronic terminal comprising the touch screen of claim 29.