CN116431019A - Touch display module, display device, abnormality detection method and storage medium - Google Patents

Abstract

The application relates to a touch display module, a display device, an abnormality detection method and a storage medium, wherein the touch display module comprises a touch chip, a display panel and at least one filter capacitor, the touch chip comprises a processing circuit and a power supply module, and the processing circuit is connected with the power supply module; the display panel is connected with the processing circuit through the receiving channel and the transmitting channel; the first end of each filter capacitor is respectively connected with the power supply module, the second end of each filter capacitor is respectively connected with the target channel, the target channel is grounded to the common ground, and the target channel is one of the receiving channel and the transmitting channel; in the detection mode, the processing module is used for controlling the disconnection of the target channel and the common ground, and judging whether the filter circuit is abnormal or not according to the electric signals of the filter capacitors and the reference capacitance. By adopting the touch display module, whether the filter capacitance in the filter circuit is abnormal or not can be detected.

Description

Touch display module, display device, abnormality detection method and storage medium

Technical Field

The present disclosure relates to the field of display technologies, and in particular, to a touch display module, a display device, an anomaly detection method, and a storage medium.

Background

Along with the development of touch display technology, touch panels are widely applied in various fields such as intelligent wearing, smart phones, tablet/notebook computers and the like, wherein a touch chip is the most core component for realizing a touch function.

In order to realize a complex touch function, the power supply module built in the touch chip can output different levels, so that the work requirement of the chip is met. In order to reduce the interference signal, the power module is often connected to at least one filter capacitor, where the filter capacitor is an important component of the peripheral circuit of the touch chip. However, since these filter capacitors are mainly used for power supply filtering, if an abnormality such as a filter capacitor drop or a cold solder joint occurs on a flexible circuit board (Flexible Printed Circuit, FPC) or a printed circuit board (Printed Circuit Board, PCB), conventional touch tests cannot detect such an abnormality.

Disclosure of Invention

Accordingly, it is desirable to provide a touch display module, a display device, an abnormality detection method, and a storage medium capable of detecting abnormalities such as filter capacitor dropping or cold joint.

A touch display module, comprising:

the touch chip comprises a processing circuit and a power supply module, wherein the processing circuit is connected with the power supply module;

the display panel is connected with the processing circuit through a receiving channel and a transmitting channel;

the first end of each filter capacitor is respectively connected with the power supply module, the second end of each filter capacitor is respectively connected with a target channel, the target channels are grounded to a common ground, and the target channel is one of the receiving channel and the transmitting channel;

in the detection mode, the processing circuit is used for controlling to disconnect the target channel from the common ground, controlling the power module to charge each filter capacitor, obtaining the electric signals of each filter capacitor through the target channel, and judging whether the filter capacitors are abnormal or not according to the electric signals of each filter capacitor and the reference capacitance, wherein the reference capacitance is the total capacitance of each filter capacitor.

The second ends of all the filter capacitors are connected together and then connected to the target channel of the touch control chip, and the second ends of all the filter capacitors are also equivalent to the common ground when the touch control chip works normally because the target channel is grounded to the common ground, so that normal filtering of a power supply can be ensured; when the filter capacitors need to be checked, after the touch display module enters a detection mode, the connection between the target channel and the public ground is disconnected, the target channel can collect the electric signals of all the filter capacitors, and the processing circuit judges whether the abnormal filter capacitors exist or not according to the electric signals of all the filter capacitors and the reference capacitance, so that the abnormal detection of the filter capacitors is realized.

In one embodiment, in the detection mode, the processing circuit is further configured to determine that the filter capacitors are abnormal when the electrical signal is not acquired.

In one embodiment, in the detection mode, the processing circuit is further configured to, when the electrical signals are acquired, acquire a total detection capacitance corresponding to each of the filter capacitors according to each of the electrical signals, and determine that an abnormal filter capacitor exists when the total detection capacitance is different from the reference capacitance.

In one embodiment, the processing module is further configured to control the target channel to be conductively connected to a common ground in case of exiting the detection mode.

In one embodiment, the processing circuit includes a processing module and a signal conversion module, where the processing module is connected to the signal conversion module and the power module, and the signal conversion module is connected to the display panel through the receiving channel and the transmitting channel.

In one embodiment, the signal conversion module includes an analog front end module and an analog-to-digital conversion module, where the analog front end module is connected to the receiving channel and the sending channel, and the analog front end module is configured to transmit a driving signal to the display panel through the sending channel and receive capacitance change signals of each sensing node fed back by the receiving channel; the analog-to-digital conversion module is respectively connected with the analog front-end module and the processing module, and is used for converting the analog signals sent by the analog front-end module into digital signals and transmitting the digital signals to the processing module.

In a second aspect, the present application provides a display device, including the touch display module set as described above.

The display device comprises the touch display module, wherein the second ends of all the filter capacitors are connected together and then connected to the target channel of the touch chip, and the second ends of all the filter capacitors are also equivalent to the common ground when the touch chip works normally because the target channel is connected to the common ground, so that normal filtering of a power supply can be ensured; when the filter capacitors need to be checked, after the touch display module enters a detection mode, the connection between the target channel and the public ground is disconnected, the target channel can collect the electric signals of all the filter capacitors, the processing circuit judges whether the abnormal filter capacitors exist according to the electric signals of all the filter capacitors and the reference capacitance, so that the abnormal detection of the filter capacitors is realized, and the display device can realize the abnormal detection of the filter capacitors.

In a third aspect, the present application provides an anomaly detection method applied to a touch display module; the abnormality detection method includes:

under the condition that the current operation mode is a detection mode, controlling to disconnect a target channel from a public ground end, and controlling a power supply module to charge each filter capacitor, wherein the target channel is one of a receiving channel and a transmitting channel;

acquiring electric signals of each filter capacitor acquired through a target channel;

and determining whether the filter capacitor is abnormal or not according to the electric signals of the filter capacitors and a reference capacitance, wherein the reference capacitance is the total capacitance of the filter capacitors.

In one embodiment, the controlling the power module to charge each filter capacitor includes:

and controlling the power supply module to output electric signals with different frequencies to the corresponding filter capacitors according to the capacitance of the filter capacitors so as to charge the filter capacitors.

In one embodiment, determining whether the filter capacitor is abnormal according to the electric signal of each filter capacitor and the reference capacitance comprises:

and acquiring the total detection capacitance corresponding to each filter capacitor according to the electric signals of the filter capacitors, and judging that the abnormal filter capacitor exists when the total detection capacitance is different from the reference capacitance.

In one embodiment, the method further comprises:

and under the condition of exiting the detection mode, controlling the target channel to be connected to the common ground in a conducting way.

In one embodiment, the method further comprises:

and when the electric signals of the filter capacitors are not acquired, judging that the filter capacitors are abnormal.

In a fourth aspect, the present application provides a computer readable storage medium having stored thereon a computer program which when executed by a processor performs the steps of the method as described above.

According to the anomaly detection method and the computer-readable storage medium display device, after the touch display module enters the detection mode, the connection between the target channel and the public ground is controlled to be disconnected, and the power supply module is controlled to charge each filter capacitor, so that the target channel can collect the electric signals of each filter capacitor, and whether the anomaly filter capacitor exists or not can be judged according to the electric signals of each filter capacitor and the reference capacitance, and the anomaly detection of the filter capacitors is realized.

Drawings

In order to more clearly illustrate the technical solutions of embodiments or conventional techniques of the present application, the drawings required for the descriptions of the embodiments or conventional techniques will be briefly described below, and it is apparent that the drawings in the following description are only some embodiments of the present application, and other drawings may be obtained according to these drawings without inventive effort for a person of ordinary skill in the art.

Fig. 1 is a schematic structural diagram of a conventional touch display module;

fig. 2 to fig. 4 are schematic structural diagrams of a touch display module according to various embodiments of the present application;

FIG. 5 is a flow chart of an abnormality detection method according to an embodiment of the present disclosure;

fig. 6 is a flowchart of an anomaly detection method according to another embodiment of the present application.

Detailed Description

In order to facilitate an understanding of the present application, a more complete description of the present application will now be provided with reference to the relevant figures. Preferred embodiments of the present application are shown in the drawings. This application may, however, be embodied in many different forms and is not limited to the embodiments described 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 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 when an element is referred to as being "fixed to" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "left," "right," and the like are used herein for illustrative purposes only.

In the following embodiments, when a layer, region or element is "connected," it can be construed that the layer, region or element is not only directly connected but also connected through other constituent elements interposed therebetween. For example, when a layer, region, element, etc. is described as being connected or electrically connected, the layer, region, element, etc. can be connected or electrically connected not only directly or electrically connected but also through another layer, region, element, etc. interposed therebetween.

Hereinafter, although terms such as "first", "second", etc. may be used to describe various components, these components are not necessarily limited to the above terms. The above terms are used only to distinguish one component from another. It will also be understood that the use of the expression "a" or "an" includes the plural unless the singular is in a context clearly different.

As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items. It will be further understood that the terms "comprises" and/or "comprising," and/or the like, specify the presence of stated features, integers, steps, operations, elements, components, or groups thereof, but do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components, or groups thereof.

An electronic or electrical device and/or any other related device or component (e.g., a display device including a display panel and a display panel driver, wherein the display panel driver further includes a drive controller, a gate driver, a gamma reference voltage generator, a data driver, and an emission driver) according to embodiments of the present concepts described herein may be implemented using any suitable hardware, firmware (e.g., application specific integrated circuits), software, or a combination of software, firmware, and hardware. For example, the various components of these devices may be formed on one Integrated Circuit (IC) chip or on separate IC chips. In addition, various components of these devices may be implemented on a flexible printed circuit film, tape Carrier Package (TCP), printed Circuit Board (PCB), or formed on one substrate. Additionally, the various components of these devices may be processes or threads running on one or more processors in one or more computing devices to execute computer program instructions and interact with other system components to perform the various functions described herein. Moreover, those skilled in the art will appreciate that the functionality of the various computing devices may be combined or integrated into a single computing device, or that the functionality of a particular computing device may be distributed over one or more other computing devices without departing from the spirit and scope of the exemplary embodiments of the concepts of the present application.

Although exemplary embodiments of a display module and a display device including the same have been particularly described herein, many modifications and variations will be apparent to those skilled in the art. It will thus be appreciated that display modules constructed in accordance with the principles of the present application and display devices including display modules may be implemented other than as specifically described herein. The application is also defined in the claims and their equivalents.

As described in the background art, with the development of touch display technology, touch panels are widely used in various fields such as smart wear, smart phones, tablet/notebook computers, etc., where a touch chip is the most core component for realizing a touch function.

In order to implement a complex touch function, as shown in fig. 1, the touch chip 11 is connected with the display panel 12 through a transmission channel TX and a receiving channel RX, and a processing circuit 111 and a power module 112 are built in the touch chip 11, where the processing circuit 111 can control the power module 112 to output different levels, so as to meet the requirement of the chip operation. In order to reduce the interference signal, the power module 112 is often connected to at least one filter capacitor, such as C1, C2, and C3 in fig. 1, where a first end of each filter capacitor contacts a power pin of the control chip, and the other end is grounded, so as to implement power filtering. However, since these filter capacitors are mainly used for power supply filtering, if an abnormality such as a filter capacitor drop or a cold solder joint occurs on a flexible circuit board (Flexible Printed Circuit, FPC) or a printed circuit board (Printed Circuit Board, PCB), conventional touch tests cannot detect such an abnormality.

For the above reasons, in one embodiment, the application provides a touch display module, as shown in fig. 2, the touch display module includes: the touch chip 21, the display panel 22 and at least one filter capacitor. The touch chip 21 comprises a processing circuit 211 and a power module 212, wherein the processing circuit 211 is connected with the power module 212; the display panel 22 is connected to the processing circuit 211 through a receive channel RX and a transmit channel TX; the first end of each filter capacitor is respectively connected with the power module 212, and the second end of each filter capacitor is respectively connected with a target channel, wherein the target channel is grounded and is one of the receiving channel RX and the transmitting channel TX.

In fig. 2, the number of filter capacitors is three, C1, C2, and C3, respectively. However, fig. 2 is only an example of the present application, and thus, the number of filter capacitors may be greater or less, which is not specifically limited herein.

In the detection mode, the processing circuit 211 is configured to control to disconnect the target channel from the common ground, control the power module 212 to charge each filter capacitor, obtain an electrical signal of each filter capacitor through the target channel, and determine whether the filter capacitor is abnormal according to the electrical signal and a reference capacitance, where the reference capacitance is a total capacitance of each filter capacitor.

The target channel may be connected to the common ground through the switch unit 23, and the control end of the switch unit 23 is connected to the processing circuit 211, so that the processing circuit 211 may control whether the target channel is connected to the common ground by controlling the on/off of the switch unit 23. The switching unit 23 may be a switching transistor.

In use, human tissue skin is a lossy electrolyte, corresponding to conductive electrodes, separated by a layer of dielectric in a simple parallel-plate capacitor, most of the energy in the system is concentrated between the capacitor plates, a small amount of energy spills out to areas outside the capacitor plates, corresponding to energy spills (called fringe fields) when a finger is placed in the capacitive touch system (the screen of display panel 22), and will increase the conductive surface area of the capacitive system. On the basis, the transmission channel TX provides a driving signal to the display panel 22, and the reception channel RX receives an electrical signal transmitted from the display panel 22, and when a finger is placed on the capacitive touch system, the electrical signal transmitted from the display panel 22 is changed, thereby realizing detection of a touch/no-touch state. The touch display module can adopt a mutual capacitance induction technology or a self-capacitance induction technology, and when the touch display module adopts the mutual capacitance induction technology, the transmitting channel TX and the receiving channel RX are different channels; when the self-capacitance sensing technology is adopted, the sending channel TX and the receiving channel RX are the same channel.

Optionally, in case of exiting the detection mode, the processing circuit is further configured to control the target channel to be conductively connected to a common ground.

In application, to reduce the interference signal, the power module 212 is often connected to a filter capacitor, and the filter capacitor is connected to a common ground, so as to implement power filtering. In this embodiment, the first ends of the filter capacitors are respectively connected to the power module 212, the second ends of the filter capacitors are respectively connected to the target channel, and when the touch chip 21 works normally, the target channel is grounded, and the second ends of all the filter capacitors are also equivalent to the grounded common ground.

When it is required to detect whether the filter capacitors are abnormal, the touch display module can be controlled to enter a detection mode, and in the detection mode, the processing circuit 211 controls to disconnect the connection between the target channel and the common ground and controls the power module 212 to charge each filter capacitor; the target channel collects the electrical signals of the filter capacitors, and the processing circuit 211 can determine whether the filter capacitors are abnormal according to the electrical signals of the filter capacitors and the reference capacitance, so as to detect the filter capacitors. It can be understood that the detection process does not need an additional detection tool, and only needs to control the touch display module to change the working mode, so that whether the abnormal filter capacitor exists can be detected, and the operation is simple and the convenience is high.

In the touch display module, the second ends of all the filter capacitors are connected together and then connected to the target channel of the touch chip 21, and the second ends of all the filter capacitors are also equivalent to the common ground when the touch chip 21 works normally because the target channel is grounded to the common ground, so that normal filtering of a power supply can be ensured; when the filter capacitors need to be checked, after the touch display module enters a detection mode, the connection between the target channel and the public ground is disconnected, the target channel collects discharge signals of all the filter capacitors and transmits discharge data to the processing circuit 211, and the processing circuit 211 judges whether abnormal filter capacitors exist or not according to the discharge data and the reference capacitance, so that the abnormal detection of the filter capacitors is realized.

In one embodiment, in the detection mode, the processing circuit 211 is further configured to determine that the filter capacitors are abnormal when the electrical signal is not acquired.

It can be understood that, in the case that all the filter capacitors are abnormal, the target channel cannot collect the electrical signals of the filter capacitors, and the processing circuit 211 cannot receive the electrical signals of the filter capacitors. Therefore, when the processing circuit 211 does not acquire the electric signal of the filter capacitor, it can be determined that abnormality occurs in each of the filter capacitors. Further, it can be considered that the filter capacitor has abnormal conditions such as dropping or cold welding.

In one embodiment, in the detection mode, the processing circuit 211 is further configured to, when the electrical signals are acquired, acquire a total detection capacitance corresponding to each of the filter capacitors according to each of the electrical signals, and determine that an abnormal filter capacitor exists when the total detection capacitance is different from the reference capacitance.

It will be appreciated that if all the capacitors are normal, the target channel may collect the electrical signals of all the filter capacitors, and the total detected capacitance obtained by the processing circuit 211 according to the electrical signals of each filter capacitor should be theoretically the total capacitance of each filter capacitor, that is, should be equal to the reference capacitance. Based on this, if the total detected capacitance is different from the reference capacitance, it can be considered that there is an abnormality in the filter capacitance, and it can be determined that there is an abnormal filter capacitance.

In one embodiment, as shown in fig. 3, the processing circuit 211 includes a processing module 2111 and a signal conversion module 2112, where the processing module 2111 is connected to the signal conversion module 2112 and the power module 212, and the signal conversion module 2112 is connected to the display panel 22 through the receiving channel RX and the transmitting channel TX.

In the detection mode, the processing module 2111 is configured to control to disconnect the target channel from the common ground, and control the power module 212 to charge each filter capacitor; the signal conversion module 2112 acquires the electric signals of the filter capacitors acquired through the target channel, and amplifies and analog-to-digital converts the acquired electric signals of the filter capacitors so as to facilitate the recognition of the processing module 2111. The processing module 2111 receives the converted electric signals of the filter capacitors, and determines whether the filter capacitors are abnormal according to the electric signals of the filter capacitors and the reference capacitance.

In the normal mode, the processing module 2111 provides a driving signal to the display panel 22 via the signal conversion module 2112 and the transmission channel TX, and the reception channel RX receives an electrical signal transmitted from the display panel 22 and transmits the electrical signal to the processing module 2111 via the signal conversion module 2112, so that the processing module 2111 can detect the touch/no-touch state because the electrical signal transmitted from the display panel 22 changes when a finger is placed on the capacitive touch system.

In one embodiment, as shown in fig. 4, the signal conversion module 2112 includes an analog front end unit 21121 and an analog-to-digital conversion unit 21121, where the analog front end unit 21121 is connected to the receiving channel RX and the transmitting channel TX, and the analog front end unit 21121 is configured to transmit a driving signal to the display panel 22 through the transmitting channel TX and receive a capacitance change signal of each sensing node fed back by the receiving channel RX; the analog-to-digital conversion unit 21121 is connected to the analog front end unit 21121 and the processing module 2111, respectively, and is configured to convert an analog signal sent by the analog front end unit 21121 into a digital signal, and transmit the digital signal to the processing module 2111.

The analog front end unit 21121 may include a filtering unit, an amplifying unit, and the like, for filtering and amplifying an analog signal. The analog-to-digital conversion unit 21121 is configured to convert the analog signal processed by the analog front end unit 21121 into a data signal, and send the data signal to the processing module 2111, so that the processing module 2111 recognizes the processing, and the data signal sent by the processing module 2111 is sent to the analog front end unit 21121 after being converted by the analog front end unit 21121, so as to be sent to the display panel 22 after being further processed by the analog front end unit 21121, for example, the analog front end unit 21121 provides a driving signal to the display panel 22 through a sending channel TX under the control of the processing module 2111, and receives an electrical signal fed back by the display panel 22 through a receiving channel RX, where the electrical signal sent by the display panel 22 changes when a finger is placed on the capacitive touch system, thereby realizing detection of a touch/no-touch state.

Based on the same inventive concept, in one embodiment, the present application further provides a display device, including the touch display module set as described above. It may be understood that the display device in the embodiments of the present application may be any product or component having a display function, such as an OLED display device, a QLED display device, an electronic paper, a mobile phone, a tablet computer, a television, a display, a notebook computer, a digital photo frame, a navigator, a wearable device, or an internet of things device, which is not limited in the embodiments disclosed in the present application.

The display device comprises the touch display module, wherein the second ends of all the filter capacitors are connected together and then connected to the target channel of the touch chip 21, and the second ends of all the filter capacitors are equivalent to the common ground when the touch chip 21 works normally, so that normal filtering of a power supply can be ensured; when the filter capacitors need to be checked, the target channel collects the electric signals of the filter capacitors after the touch display module enters the detection mode, and the processing circuit 211 judges whether the abnormal filter capacitors exist according to the electric signals of the filter capacitors and the reference capacitance, so that the abnormal detection of the filter capacitors is realized, and the display device can realize the abnormal detection of the filter capacitors.

In one embodiment, as shown in fig. 5, the present application further provides an anomaly detection method applied to a touch display module; the abnormality detection method includes:

s501: in the case that the current operation mode is the detection mode, the disconnection of the target channel, which is one of the reception channel RX and the transmission channel TX, from the common ground is controlled, and the power supply module 212 is controlled to charge each filter capacitor.

Wherein the current operation mode includes a normal mode and a detection mode. The detection mode is used for detecting whether an abnormal filter capacitor exists. In application, conventional touch testing, such as on/off testing of the touch chip 21, may be completed before entering the detection mode, in order to facilitate interference caused by other anomalies.

S502: and acquiring the electric signals of the filter capacitors acquired through the target channel.

It will be appreciated that by disconnecting the target channel from the equipotential and controlling the power module 212 to charge each of the filter capacitors, the target channel may collect the electrical signals of each filter capacitor.

S503: and determining whether the filter capacitor is abnormal or not according to the electric signals of the filter capacitors and a reference capacitance, wherein the reference capacitance is the total capacitance of the filter capacitors.

The touch display module of this embodiment may be any one of the touch display modules described in the foregoing schemes.

Optionally, determining whether the filter capacitor is abnormal according to the electric signal of each filter capacitor and the reference capacitance includes: and acquiring the total detection capacitance corresponding to each filter capacitor according to the electric signals of the filter capacitors, and judging that the abnormal filter capacitor exists when the total detection capacitance is different from the reference capacitance.

It will be appreciated that if all the capacitors are normal, the target channel may collect the electrical signals of all the filter capacitors, and the total detected capacitance obtained from the electrical signals of each filter capacitor should be theoretically the total capacitance of each filter capacitor, that is, should be equal to the reference capacitance. Based on this, if the total detected capacitance is different from the reference capacitance, it can be considered that there is an abnormality in the filter capacitance, and it can be determined that there is an abnormal filter electricity.

Optionally, in a case of exiting the detection mode, the target channel is controlled to be connected to a common ground in a conducting manner.

In application, in order to reduce interference signals, the power module is often connected with a filter capacitor, and the filter capacitor is connected with a common ground terminal, so that power filtering is realized. In this embodiment, the first ends of the filter capacitors are respectively connected with the power module, the second ends of the filter capacitors are respectively connected with the target channel, and when the touch control chip works normally, the target channel is grounded to the common ground, and the second ends of all the filter capacitors are also equivalent to the grounded common ground, so that the touch control display module of this embodiment can implement power supply filtering.

According to the anomaly detection method, after the touch display module enters the detection mode, the connection between the target channel and the public ground is controlled to be disconnected, and the power supply module is controlled to charge each filter capacitor, so that the target channel can collect the electric signals of each filter capacitor, and whether the filter capacitors exist abnormally or not can be judged according to the electric signals of each filter capacitor and the reference capacitance, and anomaly detection of the filter capacitors is achieved.

In one embodiment, the controlling the power module to charge each of the filter capacitors includes: and controlling the power supply module to output electric signals with different frequencies to the corresponding filter capacitors according to the capacitance of the filter capacitors so as to charge the filter capacitors.

The power supply module outputs waveforms with different frequencies to charge the filter capacitors according to the different sizes of the filter capacitors, so that the electric signals of the filter capacitors correspond to the capacitance of the filter capacitors, and further when all the filter capacitors are normal, the total detected capacitance obtained according to the electric signals of the filter capacitors is theoretically the total capacitance of the filter capacitors, namely the total capacitance is equal to the reference capacitance. Based on this, if the total detected capacitance is different from the reference capacitance, it can be considered that there is an abnormality in the filter capacitance, and it can be determined that there is an abnormal filter electricity.

In one embodiment, the abnormality detection method further includes: and judging that the filter capacitors are abnormal when the electric signals of the filter capacitors are not acquired.

It can be understood that, under the condition that all the filter capacitors are abnormal, the target channel cannot collect the electric signals of the filter capacitors, and then cannot obtain the electric signals of the filter capacitors. Therefore, when the discharge data is not acquired, it can be determined that the filter capacitors are abnormal. Further, it can be considered that the filter capacitor has abnormal conditions such as dropping or cold welding.

Based on the above embodiments, in one embodiment, as shown in fig. 6, the present application provides an abnormality detection method, including:

s601: under the condition that the current operation mode is a detection mode, controlling to disconnect a target channel from a common ground, and controlling the power module to output electric signals with different frequencies to corresponding filter capacitors according to the capacitance of the filter capacitors so as to charge the filter capacitors, wherein the target channel is one of a receiving channel RX and a transmitting channel TX;

s602: acquiring electric signals of each filter capacitor acquired through a target channel;

s603: when the electric signals of the filter capacitors are not acquired, judging that the filter capacitors are abnormal;

s604: and when the electric signals of the filter capacitors are acquired, acquiring total detection capacitance corresponding to each filter capacitor according to the electric signals of each filter capacitor, and judging that the abnormal filter capacitor exists when the total detection capacitance is different from the reference capacitance.

According to the anomaly detection method, after the touch display module enters the detection mode, the connection between the target channel and the public ground is controlled to be disconnected, the power supply module is controlled to charge each filter capacitor, so that the target channel can collect electric signals of each filter capacitor, when discharge data are not obtained, the filter capacitors are judged to be abnormal, when the discharge data are obtained, total detection capacitance corresponding to each filter capacitor is obtained according to the electric signals of each filter capacitor, when the total detection capacitance is different from the reference capacitance, the existence of the abnormal filter capacitors is judged, and whether all the abnormal filter capacitors are abnormal can be further determined based on the anomaly detection method of the embodiment.

It should be understood that, although the steps in the flowcharts of the figures are shown in order as indicated by the arrows, these steps are not necessarily performed in order as indicated by the arrows. The steps are not strictly limited to the order of execution unless explicitly recited herein, and the steps may be executed in other orders. Moreover, at least a portion of the steps in the figures may include steps or stages that are not necessarily performed at the same time, but may be performed at different times, nor does the order in which the steps or stages are performed necessarily performed in sequence, but may be performed alternately or alternately with other steps or at least a portion of the steps or stages in other steps.

In one embodiment, the present application also provides a computer-readable storage medium. The computer readable storage medium having stored thereon a computer program which when executed by a processor performs the steps of:

under the condition that the current operation mode is a detection mode, controlling to disconnect a target channel from a public ground end, and controlling a power supply module to charge each filter capacitor, wherein the target channel is one of a receiving channel and a transmitting channel;

acquiring electric signals of each filter capacitor acquired through a target channel;

and determining whether the filter capacitor is abnormal or not according to the electric signals of the filter capacitors and a reference capacitance, wherein the reference capacitance is the total capacitance of the filter capacitors.

In one embodiment, the computer program when executed by the processor further performs the steps of: and controlling the power supply module to output electric signals with different frequencies to the corresponding filter capacitors according to the capacitance of the filter capacitors so as to charge the filter capacitors.

In one embodiment, the computer program when executed by the processor further performs the steps of: and acquiring the total detection capacitance corresponding to each filter capacitor according to the electric signals of the filter capacitors, and judging that the abnormal filter capacitor exists when the total detection capacitance is different from the reference capacitance.

In one embodiment, the computer program when executed by the processor further performs the steps of: and when the electric signals of the filter capacitors are not acquired, judging that the filter capacitors are abnormal.

Those skilled in the art will appreciate that implementing all or part of the above described methods may be accomplished by way of a computer program stored on a non-transitory computer readable storage medium, which when executed, may comprise the steps of the embodiments of the methods described above. Any reference to memory, database, or other medium used in the various 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 (Magnetoresistive Random Access Memory, MRAM), ferroelectric Memory (Ferroelectric Random Access Memory, FRAM), phase change Memory (Phase Change Memory, PCM), graphene Memory, and the like. Volatile memory can include random access memory (Random Access Memory, RAM) or external cache memory, and the like. By way of illustration, and not limitation, RAM can be in the form of a variety of forms, such as static random access memory (Static Random Access Memory, SRAM) or dynamic random access memory (Dynamic Random Access Memory, DRAM), and the like. The databases referred to in the various embodiments provided herein may include at least one of relational databases and non-relational databases. The non-relational database may include, but is not limited to, a blockchain-based distributed database, and the like. The processors referred to in the embodiments provided herein may be general purpose processors, central processing units, graphics processors, digital signal processors, programmable logic units, quantum computing-based data processing logic units, etc., without being limited thereto.

In the description of the present specification, reference to the terms "some embodiments," "other embodiments," "desired embodiments," and the like, means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, schematic descriptions of the above terms do not necessarily refer to the same embodiment or example.

The technical features of the above-described embodiments may be arbitrarily combined, and all possible combinations of the technical features in the above-described embodiments are not described for brevity of description, however, as long as there is no contradiction between the combinations of the technical features, they should be considered as the scope of the description.

The above examples merely represent a few embodiments of the present application, which are described in more detail and are not to be construed as limiting the scope of the invention. It should be noted that it would be apparent to those skilled in the art that various modifications and improvements could be made without departing from the spirit of the present application, which would be within the scope of the present application. Accordingly, the scope of protection of the present application is to be determined by the claims appended hereto.

Claims (10)

1. The utility model provides a touch-control display module assembly which characterized in that includes:

the touch chip comprises a processing circuit and a power supply module, wherein the processing circuit is connected with the power supply module;

the display panel is connected with the processing circuit through a receiving channel and a transmitting channel;

the first end of each filter capacitor is respectively connected with the power supply module, the second end of each filter capacitor is respectively connected with a target channel, and the target channel is one of the receiving channel and the sending channel;

in the detection mode, the processing circuit is used for controlling to disconnect the target channel from the common ground, controlling the power module to charge each filter capacitor, obtaining the electric signals of each filter capacitor through the target channel, and judging whether the filter capacitors are abnormal or not according to the electric signals of each filter capacitor and the reference capacitance, wherein the reference capacitance is the total capacitance of each filter capacitor.

2. The touch display module of claim 1, wherein in the detection mode, the processing circuit is further configured to determine that each of the filter capacitors is abnormal when the electrical signal is not acquired.

3. The touch display module according to claim 1, wherein in the detection mode, the processing circuit is further configured to, when the electrical signals are acquired, acquire a total detection capacitance corresponding to each of the filter capacitors according to each of the electrical signals, and determine that an abnormal filter capacitor exists when the total detection capacitance is different from the reference capacitance;

preferably, in case of exiting the detection mode, the processing circuit is further configured to control the target channel to be conductively connected to a common ground.

4. A touch display module according to any one of claims 1 to 3, wherein the processing circuit comprises a processing module and a signal conversion module, the processing module is respectively connected with the signal conversion module and the power module, and the signal conversion module is connected with the display panel through the receiving channel and the transmitting channel;

preferably, the signal conversion module comprises an analog front end module and an analog-to-digital conversion module, wherein the analog front end module is respectively connected with the receiving channel and the sending channel, and is used for transmitting a driving signal to the display panel through the sending channel and receiving capacitance change signals of each sensing node fed back by the receiving channel; the analog-to-digital conversion module is respectively connected with the analog front-end module and the processing module, and is used for converting the analog signals sent by the analog front-end module into digital signals and transmitting the digital signals to the processing module.

5. A display device comprising the touch display module of any one of claims 1 to 4.

6. The abnormality detection method is characterized by being applied to a touch display module; the abnormality detection method includes:

under the condition that the current operation mode is a detection mode, controlling to disconnect a target channel from a public ground end, and controlling a power supply module to charge each filter capacitor, wherein the target channel is one of a receiving channel and a transmitting channel;

acquiring electric signals of each filter capacitor acquired through a target channel;

and determining whether the filter capacitor is abnormal or not according to the electric signals of the filter capacitors and a reference capacitance, wherein the reference capacitance is the total capacitance of the filter capacitors.

7. The abnormality detection method according to claim 6, characterized in that the control power supply module charges each filter capacitor, comprising:

and controlling the power supply module to output electric signals with different frequencies to the corresponding filter capacitors according to the capacitance of the filter capacitors so as to charge the filter capacitors.

8. The abnormality detection method according to claim 6 or 7, characterized in that determining whether the filter capacitance is abnormal or not based on the electric signal of each of the filter capacitances and a reference capacitance, includes:

acquiring total detection capacitance corresponding to each filter capacitor according to the electric signals of the filter capacitors, and judging that an abnormal filter capacitor exists when the total detection capacitance is different from the reference capacitance;

preferably, the method further comprises:

and under the condition of exiting the detection mode, controlling the target channel to be connected to the common ground in a conducting way.

9. The abnormality detection method according to claim 6 or 7, characterized in that the method further comprises:

and when the electric signals of the filter capacitors are not acquired, judging that the filter capacitors are abnormal.

10. A computer readable storage medium, on which a computer program is stored, characterized in that the computer program, when being executed by a processor, implements the steps of the method of any of claims 6 to 9.

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