WO2022037495A1

WO2022037495A1 - Display screen anomaly recovery method and apparatus, computer device, and storage medium

Info

Publication number: WO2022037495A1
Application number: PCT/CN2021/112527
Authority: WO
Inventors: 钟柳和
Original assignee: 深圳市万普拉斯科技有限公司
Priority date: 2020-08-18
Filing date: 2021-08-13
Publication date: 2022-02-24
Also published as: CN114077511A

Abstract

The present application relates to a display screen anomaly recovery method and apparatus, a computer device, and a storage medium. The display screen anomaly recovery method comprises: starting an ESD detection work queue; determining whether a register anomaly signal sent by a DDIC corresponding to a display screen is received within a preset detection waiting time corresponding to the ESD detection work queue; if the register anomaly signal is received, performing an ESD display screen anomaly recovery operation; and if the register anomaly signal is not received, detecting the state of the DDIC by the ESD detection work queue, and if the ESD detection work queue detects that the state of the DDIC is abnormal, performing the ESD display anomaly recovery operation.

Description

Display abnormality recovery method, device, computer equipment and storage medium

CROSS-REFERENCE TO RELATED APPLICATIONS

This application claims the priority of the Chinese patent application filed on August 18, 2020 with the application number 2020108315804 and the invention title "Method, Device, Computer Equipment and Storage Medium for Display Abnormal Recovery", the entire contents of which are approved by Reference is incorporated in this application.

technical field

The present application relates to the field of mobile communication equipment, and in particular, to a method, device, computer equipment and storage medium for abnormal recovery of a display screen.

Background technique

The monitor is used to display images and colors. At present, the display screen of the mobile phone generally uses an OLCD screen (Organic Light-Emitting Diode, organic electro-optical laser display). After the display screen of the mobile phone is hit by static electricity, the display screen is abnormal, that is, ESD (Electro-Static discharge, electrostatic discharge) causes the display screen to be abnormal. In the current mobile phone, the recovery methods after the abnormal display screen is hit by static electricity generally include DDIC (Display Driver Integrated Circuit) register readback judgment, TE (Tear Effect, tearing effect) detection judgment, etc.

The existing DDIC register readback judgment method is generally set to read back every 5 seconds to judge whether the display on the screen is normal. processor, application processor) side controls the DDIC to perform hardware reset recovery. If the time interval of readback is reduced, the power consumption of the whole machine will increase and the performance will be affected. Therefore, if the display screen is abnormal, it will take up to 5 seconds to automatically recover. too long.

SUMMARY OF THE INVENTION

Based on this, it is necessary to provide a display screen abnormality recovery method, device, computer equipment and storage medium that can effectively shorten the display screen abnormality recovery time in response to the above technical problems.

A first aspect of the present application relates to a method for abnormal recovery of a display screen, the method comprising:

Start the ESD detection work queue;

Determine whether the abnormal signal of the register sent by the DDIC corresponding to the display screen is received within the preset detection waiting time corresponding to the ESD detection work queue;

When receiving the abnormal signal of the register, execute the abnormal recovery operation of the ESD display screen;

When the register abnormal signal is not received, the DDIC state is detected by the ESD detection work queue, and when the ESD detection work queue detects that the DDIC state is abnormal, an ESD display screen abnormal recovery operation is performed.

A second aspect of the present application relates to a display screen abnormality recovery device, the device comprising:

The queue start module is used to start the ESD detection work queue;

a signal receiving module for judging whether an abnormal register signal sent by the DDIC corresponding to the display screen is received within the preset detection waiting time corresponding to the ESD detection work queue;

a first exception recovery module, configured to perform an ESD display screen exception recovery operation when receiving the register exception signal;

A second abnormality recovery module, configured to detect the DDIC state through the ESD detection work queue when the register abnormality signal is not received, and execute ESD when the ESD detection work queue detects that the DDIC state is abnormal The display abnormally resumes operation.

A third aspect of the present application relates to a computer device, comprising a memory and a processor, the memory stores a computer program, and the processor implements the following steps when executing the computer program:

Start the ESD detection work queue;

A fourth aspect of the present application relates to a computer-readable storage medium having a computer program stored thereon, the computer program implementing the following steps when executed by a processor:

Start the ESD detection work queue;

The details of one or more embodiments of the application are set forth in the accompanying drawings and the description below. Other features, objects and advantages of the present invention will be apparent from the description, drawings and claims.

Description of drawings

In order to illustrate the technical solutions of the embodiments of the present application more clearly, the following drawings will briefly introduce the drawings that need to be used in the embodiments. It should be understood that the following drawings only show some embodiments of the present application, and therefore do not It should be regarded as a limitation of the scope, and for those of ordinary skill in the art, other related drawings can also be obtained according to these drawings without any creative effort.

1 is an application environment diagram of a display screen abnormality recovery method in one embodiment;

2 is a schematic flowchart of a method for recovering abnormality of a display screen in one embodiment;

3 is a schematic diagram of a sub-flow of performing an abnormal recovery operation of an ESD display screen in one embodiment;

Fig. 4 is a sub-flow schematic diagram of abnormal recovery steps performed by a display screen when playing a video in one embodiment;

5 is a schematic flowchart of a method for recovering abnormality of a display screen in a more specific embodiment;

6 is a structural block diagram of a display screen abnormality recovery device in one embodiment;

FIG. 7 is a diagram of the internal structure of a computer device in one embodiment.

detailed description

In order to make the purpose, technical solutions and advantages of the present application more clearly understood, the present application will be described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application, but not to limit the present application.

The display abnormality recovery method provided by the present application can be applied to the application environment shown in FIG. 1 . Among them, an application processor (Application Processor, AP) and a display driver integrated circuit (Display Driver Integrated Circuit, DDIC) are two components of a mobile communication device. The application processor is connected with each pin of the display driving integrated circuit. The application processor starts the ESD detection work queue; judges whether the abnormal register signal sent by the DDIC corresponding to the display screen is received within the preset detection waiting time corresponding to the ESD detection work queue; when the abnormal register signal is received, it executes the abnormal recovery of the ESD display screen Operation: When the register abnormal signal is not received, the DDIC state is detected through the ESD detection work queue, and when the ESD detection work queue detects that the DDIC state is abnormal, the ESD display abnormal recovery operation is performed.

In one embodiment, as shown in FIG. 2 , a method for abnormal recovery of a display screen is provided, and the method is applied to the application processor in FIG. 1 as an example to illustrate, including the following steps:

Step 201, start the ESD detection work queue.

The ESD detection work queue specifically refers to a work queue for detecting whether an ESD abnormality occurs on the display screen. ESD means "Electrostatic Discharge". ESD can cause malfunction or damage to electronic equipment, and can cause permanent damage to semiconductor devices when placed alone or into circuit modules, even when power is not applied. That is, ESD can easily cause magnetization and aging of the display screen and affect the normal operation of the display screen. The ESD detection work queue may specifically be a circular work queue created at the system kernel (kernel) layer. Specifically, every time the display screen is turned on, the application processor can start an ESD detection work queue at the system kernel layer to detect whether the system display screen is in an ESD abnormal state. After the screen is turned off, the ESD detection work queue will be canceled through the corresponding cancel command.

Specifically, the application processor can create a continuously circulating work queue at the system kernel layer to monitor whether an ESD abnormality occurs on the screen. When the abnormal recovery of the display screen is performed, it can be judged directly from the ESD detection work queue.

Step 203: Determine whether a register exception signal sent by the DDIC corresponding to the display screen is received within the preset detection waiting time corresponding to the ESD detection work queue.

The preset detection waiting time refers to the waiting time corresponding to the readback time (cycle time) set in the ESD detection work queue, which is a period of time. If the cycle of the ESD detection work queue is set to 5 seconds, the preset detection waiting time specifically refers to the 5 seconds after the start of each cycle of the ESD detection work queue. The judging process specifically refers to judging whether a register abnormal signal sent by the DDIC corresponding to the display screen is received within the 5 seconds.

Specifically, the present application can detect the abnormality of the display screen in the form of triggering the error flag of the application processor. When the DDIC detects that the screen is abnormal, it can directly send the corresponding register exception signal to the application processor to trigger the error flag of the application processor. The abnormal recovery of the display screen is triggered by the error flag, and when the DDIC does not detect the abnormality of the screen, the ESD detection work queue can be used to detect whether the display screen is abnormal.

Step 205, when the register abnormal signal is received, the abnormal recovery operation of the ESD display screen is performed.

Specifically, the DDIC has a built-in detection mechanism for some abnormality of the display screen, such as the abnormality of the ESD display screen in the form of a common black screen or a green screen. The built-in anomaly detection mechanism in the DDIC can detect it immediately, that is, the self-detection of the DDIC. At this point, the DDIC can send a corresponding register exception signal to the application processor. In one embodiment, the register exception signal specifically includes a register exception interrupt signal, the register exception interrupt signal is generated after the DDIC is struck by ESD, and is automatically generated by the abnormality detection device provided in the DDIC. Since the DDIC contains an ESD state detection logic circuit, it can be used to detect some abnormality of the ESD display screen. When the DDIC is struck by ESD, a part of the ESD state detection logic circuit inside the DDIC can send the register exception interrupt signal to the application processor by interrupting the abnormality of the DDIC. And the interrupt signal pin of DDIC is connected with the application processor. The application processor can directly receive the register exception interrupt signal sent by the DDIC through the interrupt signal pin. And immediately after receiving the register abnormal interrupt signal sent by the DDIC, the abnormal recovery operation of the ESD display screen is carried out. Reset the abnormal display screen to its original state after being attacked by ESD.

Step 207 , when the register abnormality signal is not received, the DDIC state is detected through the ESD detection work queue, and when the ESD detection work queue detects that the DDIC state is abnormal, the ESD display screen abnormality recovery operation is performed.

Among them, when the register exception signal is not received, the DDIC may be in a normal state, or may be in an abnormal state that cannot be found under the self-test of the DDIC. For example, for some screen anomalies such as black screen, part green screen, blurry screen and red screen, it is difficult to find the abnormality in the self-test of DDIC. At this time, the abnormality of the display screen can be detected at the end of each queue cycle of the ESD detection work queue. When the ESD detection work queue detects that the DDIC state is abnormal, the abnormal recovery operation of the ESD display screen is performed, and the abnormal display screen after being attacked by ESD is reset to the original state.

The abnormal recovery method of the above display screen starts by starting the ESD detection work queue; determines whether the abnormal register signal sent by the DDIC corresponding to the display screen is received within the preset detection waiting time corresponding to the ESD detection work queue; when receiving the abnormal register signal, execute ESD display abnormal recovery operation; when the register abnormal signal is not received, the DDIC status is detected through the ESD detection work queue, and when the ESD detection work queue detects that the DDIC status is abnormal, the ESD display abnormal recovery operation is performed. The present application performs additional anomaly detection by using the register anomaly signal sent by the DDIC outside the detection work queue. Therefore, the abnormal recovery time of the display screen is shorter than the preset detection waiting time of the detection work queue, which can effectively ensure the display screen. Abnormal recovery accuracy while effectively shortening the display abnormal recovery time.

In one embodiment, after step 205, the method further includes: zeroing the waiting time in the ESD detection work queue.

Specifically, when a register exception signal is received within a cycle time of the ESD detection work queue, it means that the current display screen has been abnormal, and the application processor has executed the ESD display screen abnormal recovery operation to restore the abnormal display screen. to a normal state. At this time, the waiting time in the ESD detection work queue can be directly set to zero, and the initial operation of the abnormal recovery of the ESD display screen can be restarted to detect the abnormality of the ESD display screen in the subsequent process. In this embodiment, after receiving the register abnormal signal and executing the abnormal recovery operation of the ESD display screen, the waiting time in the ESD detection work queue is cleared to zero, and the process of abnormal detection and recovery of the display screen is restarted, so that the display screen can be guaranteed to be displayed. The timeliness of abnormal screen recovery.

In one embodiment, step 207 includes: obtaining the screen register value of the DDIC register through the ESD detection work queue, and when the screen register value indicates that the DDIC is in an abnormal state, performing an ESD display screen abnormal recovery operation.

Specifically, the application processor can read the status register value in the DDIC through the MIPI (Mobile Industry Processor Interface) protocol, and judge the current DDIC by comparing the read status register value with the normal register value. Whether it is in an abnormal state, and whether there is a phenomenon that causes the display screen to display abnormally (such as black screen, green screen, blurred screen, red screen, etc.). And every time the value of the status register is obtained, the value of the status register is read once in one cycle of the ESD detection work queue to judge. For example, when the cycle of the ESD detection work queue is 5 seconds, it takes up to 5 seconds to control the DDIC to power on and off for hardware reset recovery, and shortening the read cycle will increase resource scheduling and increase power consumption. In this embodiment, whether the display screen is abnormal is determined by obtaining the screen end register value of the DDIC register, which can effectively ensure the accuracy of the abnormality judgment of the display screen.

As shown in FIG. 3 , in one embodiment, the abnormal recovery operation of the ESD display screen is a hardware recovery operation. Performing ESD display abnormal recovery operations include:

Step 302 , power down each voltage pin of the display screen in sequence.

Step 304: Re-energize the voltage pins in sequence, and perform a display screen reset operation.

Specifically, in order to perform abnormal recovery on the display screen, each voltage pin in the display screen may be powered off in sequence, and powered on after the power off is completed. Remove the static electricity from the screen to restore the abnormal display screen affected by ESD to normal. Since the ESD process is an electrostatic charge transfer process between objects at different potentials, its intensity is affected by the amount of electricity and the distance between the objects. By performing the power-off operation of each voltage pin in the display screen in sequence, and power-on after the power-off is completed, the power received by the display screen can be reset to zero in a short time, so that the abnormal display screen affected by ESD can be eliminated. Back to normal. In this embodiment, by performing a power-off and power-on reset operation on the voltage tube of the display screen, the display screen affected by ESD can be effectively restored to normal.

In one embodiment, before step 201, the method further includes: when the display screen is playing a video, detecting the display screen state through MIPI and TE (Tear Effect, tearing effect) detection mechanisms, and when the display screen is in an abnormal state, executing The ESD display abnormally resumes operation.

Among them, when the display screen is in the state of playing video, the TE detection mechanism can be used to effectively ensure the efficiency of the display screen recovery. By detecting whether there is an error in MIPI transmission, if there is an error in MIPI transmission, the TE detection mechanism is directly invoked to determine whether the display is abnormal and whether data cannot be transmitted normally. In this embodiment, when the video is played on the display screen through the MIPI and TE detection mechanisms, anomaly detection is performed on it, which can effectively ensure the efficiency of anomaly detection.

As shown in FIG. 4 , in one of the embodiments, when the display screen is playing a video, the MIPI and TE detection mechanisms are used to detect whether the display screen is in the display screen state. When the display screen is in an abnormal state, the abnormal recovery operation of the ESD display screen includes:

Step 401, when the display screen is playing a video and the MIPI transmission is in error, obtain the reported number of display screen tearing effect signals within a preset time interval, and when the reported number is less than a preset threshold, determine that the display screen is in an abnormal state .

In step 403, an abnormal recovery operation of the ESD display screen is performed.

Specifically, TE detection specifically refers to determining whether the display screen is abnormal by detecting the number of TE (tear effect) signals within a preset time interval. When playing a video, if it is detected that no TE signal is sent to the AP within a short period of time, or the number of TE signals reported within the preset time interval is less than the preset threshold, it is determined that the DDIC is in an abnormal state, and an ESD display needs to be performed. The screen resumes operation abnormally. In this embodiment, when the display screen plays a video, it is determined whether the display screen is abnormal by the number of reported tear effect signals of the display screen within a preset time, which can effectively ensure the accuracy of the abnormality detection of the display screen.

In a specific embodiment, the specific flowchart of the present application can refer to FIG. 5. When the abnormal recovery of the display screen starts, it is first determined whether the display screen is playing a video, and when the video is playing, the reported number of TE signals is directly obtained, According to whether the number of reported TE signals within a preset time interval is less than a preset threshold, the abnormality of the screen is judged, and the abnormal recovery operation of the ESD display screen is performed. When the display screen is not playing a video, a 5-second waiting time work queue is created for abnormal detection, and at the same time, it is judged whether there is an error flag triggered during the 5-second period. When there is an error flag triggered, the waiting time of the work queue is directly cleared, and the abnormal recovery operation of the ESD display screen is performed; when there is no error flag triggered within 5 seconds, the screen register value is read once. , compare the read screen register value with the normal register value to determine whether the display screen is abnormal, and perform the corresponding ESD display abnormal recovery operation when the abnormality occurs.

It should be understood that although the steps in the flowcharts of FIGS. 2-4 are shown in sequence according to the arrows, these steps are not necessarily executed in the sequence shown by the arrows. Unless explicitly stated herein, the execution of these steps is not strictly limited to the order, and these steps may be performed in other orders. Moreover, at least a part of the steps in FIGS. 2-4 may include multiple steps or multiple stages. These steps or stages are not necessarily executed and completed at the same time, but may be executed at different times. The execution of these steps or stages The order is also not necessarily sequential, but may be performed alternately or alternately with other steps or at least a portion of the steps or phases within the other steps.

In one embodiment, as shown in FIG. 6, a display screen abnormality recovery device is provided, including:

a queue start module 601, used to start the ESD detection work queue;

The signal receiving module 603 is used for judging whether the abnormal signal of the register sent by the DDIC corresponding to the display screen is received within the preset detection waiting time corresponding to the ESD detection work queue;

The first exception recovery module 605 is configured to perform an exception recovery operation of the ESD display screen when receiving the register exception signal;

The second abnormality recovery module 607 is configured to detect the DDIC state through the ESD detection work queue when the register abnormality signal is not received, and execute the ESD display abnormality recovery operation when the ESD detection work queue detects that the DDIC state is abnormal.

In one embodiment, the first exception recovery module 605 is further configured to: zero the waiting time in the ESD detection work queue.

In one embodiment, the second exception recovery module 607 is specifically configured to: obtain the screen register value of the DDIC register through the ESD detection work queue, and perform an ESD display screen exception recovery operation when the screen register value indicates that the DDIC is in an abnormal state .

In one embodiment, the first abnormality recovery module 605 and the second abnormality recovery module 607 are specifically used to: power off each voltage pin of the display screen in sequence; reset operation.

In one of the embodiments, a third abnormality recovery module is further included for: when the display screen is playing a video, the display screen state is detected through MIPI and TE detection mechanisms, and when the display screen is in an abnormal state, the ESD display screen abnormality is executed. resume operation.

In one embodiment, the third abnormality recovery module is specifically configured to: when the display screen is playing a video and the MIPI transmission is in error, obtain the reported number of display screen tearing effect signals within a preset time interval, and when the reported number of When the number is less than the preset threshold, it is judged that the display screen is in an abnormal state; the abnormal recovery operation of the ESD display screen is performed.

For the specific limitations of the display screen abnormality recovery device, please refer to the above limitations on the display screen abnormality recovery method, which will not be repeated here. Each module in the above-mentioned display screen abnormality recovery device can be implemented in whole or in part by software, hardware and combinations thereof. The above modules can be embedded in or independent of the processor in the computer device in the form of hardware, or stored in the memory in the computer device in the form of software, so that the processor can call and execute the operations corresponding to the above modules.

In one embodiment, a computer device is provided, and the computer device may be a terminal, and its internal structure diagram may be as shown in FIG. 7 . The computer equipment includes a processor, memory, a communication interface, a display screen, and an input device connected by a system bus. Among them, the processor of the computer device is used to provide computing and control capabilities. The memory of the computer device includes a non-volatile storage medium, an internal memory. The nonvolatile storage medium stores an operating system and a computer program. The internal memory provides an environment for the execution of the operating system and computer programs in the non-volatile storage medium. The communication interface of the computer device is used for wired or wireless communication with an external terminal, and the wireless communication can be realized by WIFI, operator network, NFC (Near Field Communication) or other technologies. When the computer program is executed by the processor, a display screen abnormal recovery method is realized. The display screen of the computer equipment may be a liquid crystal display screen or an electronic ink display screen, and the input device of the computer equipment may be a touch layer covered on the display screen, or a button, a trackball or a touchpad set on the shell of the computer equipment , or an external keyboard, trackpad, or mouse.

Those skilled in the art can understand that the structure shown in FIG. 7 is only a block diagram of a partial structure related to the solution of the present application, and does not constitute a limitation on the computer equipment to which the solution of the present application is applied. Include more or fewer components than shown in the figures, or combine certain components, or have a different arrangement of components.

In one embodiment, a computer device is provided, including a memory and a processor, a computer program is stored in the memory, and the processor implements the above-mentioned abnormal display screen recovery method when the processor executes the computer program. In one embodiment, the processor implements the following steps when executing a computer program:

Start the ESD detection work queue;

Determine whether the register abnormal signal sent by the DDIC corresponding to the display screen is received within the preset detection waiting time corresponding to the ESD detection work queue;

When the register abnormal signal is not received, the DDIC state is detected by the ESD detection work queue. When the ESD detection work queue detects that the DDIC state is abnormal, the abnormal recovery operation of the ESD display screen is performed.

In one embodiment, the processor executing the computer program further implements the step of: zeroing the waiting time in the ESD detection work queue.

In one embodiment, the processor further implements the following steps when executing the computer program: obtaining the screen register value of the DDIC register through the ESD detection work queue, and performing an ESD display abnormal recovery operation when the screen register value indicates that the DDIC is in an abnormal state .

In one embodiment, when the processor executes the computer program, the processor further implements the following steps: powering off the voltage pins of the display screen in sequence; re-powering the voltage pins in sequence to perform the display screen reset operation.

In one embodiment, when the processor executes the computer program, the following steps are further implemented: when the display screen is playing a video, the display screen state is detected through MIPI and TE detection mechanisms, and when the display screen is in an abnormal state, the abnormal recovery of the ESD display screen is performed. operate.

In one embodiment, when the processor executes the computer program, the following steps are further implemented: when the display screen is playing a video and the MIPI transmission data is in error, obtain the reported number of tearing effect signals on the display screen, and report the number within a preset time interval. When the number is less than the preset threshold, the display is in an abnormal state; the abnormal recovery operation of the ESD display is performed.

In one embodiment, a computer-readable storage medium is provided, on which a computer program is stored, and when the computer program is executed by a processor, the above-mentioned display screen abnormality recovery method is implemented. In one embodiment, the computer program, when executed by a processor, implements the following steps:

Start the ESD detection work queue;

When the register abnormal signal is not received, the DDIC state is detected through the ESD detection work queue. When the ESD detection work queue detects that the DDIC state is abnormal, the ESD display abnormal recovery operation is performed.

In one embodiment, the computer program, when executed by the processor, further implements the step of: zeroing the wait time in the ESD detection work queue.

In one embodiment, when the computer program is executed by the processor, the following steps are further implemented: obtaining the screen-side register value of the DDIC register through the ESD detection work queue, and when the screen-side register value indicates that the DDIC is in an abnormal state, execute abnormal recovery of the ESD display screen operate.

In one embodiment, when the computer program is executed by the processor, the following steps are further implemented: powering off the voltage pins of the display screen in sequence; re-powering the voltage pins in sequence to perform a reset operation of the display screen.

In one embodiment, when the computer program is executed by the processor, the following steps are also implemented: when the display screen is playing a video, the display screen state is detected through MIPI and TE detection mechanisms, and when the display screen is in an abnormal state, the abnormality of the ESD display screen is executed. resume operation.

In one embodiment, when the computer program is executed by the processor, the following steps are further implemented: when the display screen is playing a video and the MIPI transmission data is in error, obtain the reported number of display screen tearing effect signals, when the preset time interval When the number of reports is less than the preset threshold, the display is in an abnormal state; the abnormal recovery operation of the ESD display is performed.

Those skilled in the art can understand that all or part of the processes in the methods of the above embodiments can be implemented by instructing relevant hardware through a computer program, and the computer program can be stored in a non-volatile computer-readable storage medium , when the computer program is executed, it may include the processes of the above-mentioned method embodiments. Wherein, any reference to memory, storage, database or other media used in the various embodiments provided in this application may include at least one of non-volatile and volatile memory. Non-volatile memory may include read-only memory (Read-Only Memory, ROM), magnetic tape, floppy disk, flash memory, or optical memory, and the like. Volatile memory may include random access memory (RAM) or external cache memory. By way of illustration and not limitation, the RAM may be in various forms, such as Static Random Access Memory (SRAM) or Dynamic Random Access Memory (DRAM).

The technical features of the above embodiments can be combined arbitrarily. In order to make the description simple, all possible combinations of the technical features in the above embodiments are not described. However, as long as there is no contradiction in the combination of these technical features It is considered to be the range described in this specification.

The above examples only represent several embodiments of the present application, and the descriptions thereof are relatively specific and detailed, but should not be construed as a limitation on the scope of the patent of the present application. It should be pointed out that for those skilled in the art, without departing from the concept of the present application, several modifications and improvements can be made, which all belong to the protection scope of the present application. Therefore, the scope of protection of the patent of this application should be subject to the appended claims.

Claims

A method for abnormal recovery of a display screen, comprising:

Start the ESD detection work queue;

Determine whether the abnormal signal of the register sent by the DDIC corresponding to the display screen is received within the preset detection waiting time corresponding to the ESD detection work queue;

When the register exception signal is received, an ESD display screen exception recovery operation is performed; and

When the register abnormal signal is not received, the DDIC state is detected by the ESD detection work queue, and when the ESD detection work queue detects that the DDIC state is abnormal, an ESD display screen abnormal recovery operation is performed.
The method of claim 1 , wherein the register exception signal comprises a register exception interrupt signal generated after the DDIC is struck by ESD.
The method according to claim 1, wherein when the register exception signal is received, after performing an ESD display screen exception recovery operation, the method comprises:

Zero the wait time in the ESD detection work queue.
The method according to claim 1, wherein the detecting the DDIC state through the ESD detection work queue, when the ESD detection work queue detects that the DDIC state is abnormal, performing an ESD display abnormality recovery operation comprises: :

The on-screen register value of the DDIC register is acquired through the ESD detection work queue, and when the on-screen register value indicates that the DDIC is in an abnormal state, an abnormal recovery operation of the ESD display screen is performed.
The method according to claim 1, wherein the performing an abnormal recovery operation of the ESD display screen comprises:

Power off the voltage pins of the display screen in sequence;

Re-power on the voltage pins in sequence, and perform the display screen reset operation.
The method according to claim 1, wherein before the starting the ESD detection work queue, further comprising:

When the display screen is playing a video, the state of the display screen is detected through MIPI and TE detection mechanisms, and when the display screen is in an abnormal state, an abnormal recovery operation of the ESD display screen is performed.
The method according to claim 6, wherein when the display screen is playing a video, the display screen state is detected through MIPI and TE detection mechanisms, and when the display screen is in an abnormal state, an ESD display screen is performed. Exception recovery operations include:

When the display screen is playing a video and the MIPI transmission error occurs, obtain the reported number of display screen tearing effect signals within a preset time interval, and when the reported number is less than the preset threshold, determine that the display screen is in an abnormal state condition;

Perform an ESD display abnormal recovery operation.
A display screen abnormal recovery device, comprising:

The queue start module is used to start the ESD detection work queue;

a signal receiving module for judging whether an abnormal register signal sent by the DDIC corresponding to the display screen is received within the preset detection waiting time corresponding to the ESD detection work queue;

a first exception recovery module, configured to perform an ESD display screen exception recovery operation when the register exception signal is received; and

A second abnormality recovery module, configured to detect the DDIC state through the ESD detection work queue when the register abnormality signal is not received, and execute ESD when the ESD detection work queue detects that the DDIC state is abnormal The display abnormally resumes operation.
The display screen abnormality recovery device according to claim 8, wherein the register abnormality signal comprises a register abnormality interrupt signal, and the register abnormality interrupt signal is generated after the DDIC is struck by ESD.
The display screen abnormality recovery device according to claim 8, wherein the first abnormality recovery module is further used for: zeroing the waiting time in the ESD detection work queue.
The display screen abnormality recovery device according to claim 8, wherein the second abnormality recovery module is further configured to: obtain the screen end register value of the DDIC register through the ESD detection work queue, and when the screen end register value indicates that the DDIC is in an abnormal state , perform the ESD display abnormal recovery operation.
The display screen abnormality recovery device according to claim 8, wherein the first abnormality recovery module and the second abnormality recovery module are further used to: power off each voltage pin of the display screen in sequence; Re-power on the pins in sequence to perform the display reset operation.
The display screen abnormality recovery device according to claim 8, further comprising a third abnormality recovery module, used for: when the display screen is playing a video, the display screen state is detected through MIPI and TE detection mechanism, when the display screen is in an abnormal state , and perform the abnormal recovery operation of the ESD display screen.
The display screen abnormality recovery device according to claim 13, wherein the third abnormality recovery module is further used for: when the display screen is playing a video and an error occurs in MIPI transmission, obtain the display screen tearing within a preset time interval The reported number of effect signals. When the reported number is less than the preset threshold, it is determined that the display screen is in an abnormal state; the abnormal recovery operation of the ESD display screen is performed.
A computer device comprising a memory and a processor, the memory storing a computer program, wherein the processor implements the steps of the method of any one of claims 1 to 7 when the processor executes the computer program.
A computer-readable storage medium having a computer program stored thereon, wherein the computer program, when executed by a processor, implements the steps of the method of any one of claims 1 to 7.