WO2022127590A1 - 静电释放检测方法及装置 - Google Patents

静电释放检测方法及装置 Download PDF

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Publication number
WO2022127590A1
WO2022127590A1 PCT/CN2021/134589 CN2021134589W WO2022127590A1 WO 2022127590 A1 WO2022127590 A1 WO 2022127590A1 CN 2021134589 W CN2021134589 W CN 2021134589W WO 2022127590 A1 WO2022127590 A1 WO 2022127590A1
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Prior art keywords
lcd
esd
value
signal
register
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PCT/CN2021/134589
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English (en)
French (fr)
Inventor
罗国庆
王松涛
岳艾超
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展讯半导体(成都)有限公司
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Publication of WO2022127590A1 publication Critical patent/WO2022127590A1/zh

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    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
    • G01R31/001—Measuring interference from external sources to, or emission from, the device under test, e.g. EMC, EMI, EMP or ESD testing
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
    • G09G3/006—Electronic inspection or testing of displays and display drivers, e.g. of LED or LCD displays
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
    • G09G3/20—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
    • G09G3/34—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters by control of light from an independent source
    • G09G3/36—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters by control of light from an independent source using liquid crystals

Definitions

  • the present application relates to the field of electronic technology, and in particular, to an electrostatic discharge detection method and device.
  • a functional machine needs to pass a variety of tests when it is in use, among which the Electro-Static discharge (ESD) test is one of the tests of the functional machine.
  • ESD Electro-Static discharge
  • static electricity will interfere with the hardware of the liquid crystal display (LCD), causing the tear effect (TE) signal used for signal feedback in the LCD to disappear, resulting in the failure or error of the functional machine.
  • Actions such as causing a feature phone to have a blurry screen, a fixed screen, or a black screen, affect the user's experience of the overall performance of the feature phone.
  • the embodiments of the present application provide an electrostatic discharge detection method and device, which can speed up the ESD recovery speed, prevent the problem of system stuck and fixed screen, and improve user experience.
  • an embodiment of the present application provides an electrostatic discharge detection method, which is applied to a functional machine, and the method includes:
  • an electrostatic discharge detection device which is applied to a functional machine, and the device includes:
  • Start-up unit used to start the electrostatic discharge ESD detection
  • a detection unit configured to detect whether the tearing effect TE signal is normal when it is detected that the liquid crystal display LCD has the ESD problem
  • the refresh unit is used for refreshing the LCD when the TE signal is normal.
  • embodiments of the present application provide a functional machine, where the functional machine includes a processor, a memory, a communication interface, and one or more programs, the one or more programs are stored in the memory, and Configured to be executed by the processor, the program includes instructions for performing some or all of the steps described in the method of the first aspect above.
  • an embodiment of the present application provides a computer-readable storage medium, where the computer-readable storage medium stores a computer program for electronic data exchange, wherein the computer program causes a computer to execute the above-mentioned first aspect. some or all of the steps described in the method.
  • an embodiment of the present application provides a computer program product, wherein the computer program product includes a non-transitory computer-readable storage medium storing a computer program, and the computer program is operable to cause a computer to execute as implemented in the present application.
  • the computer program product may be a software installation package.
  • a chip system in a sixth aspect, includes at least one processor, a memory and an interface circuit, the memory, the transceiver and the at least one processor are interconnected through a line, and the at least one memory stores There is a computer program; the computer program when executed by the processor implements the method of the first aspect.
  • the technical solution provided by the present application starts the electrostatic discharge ESD detection, and then detects whether the tearing effect TE signal is normal when it is detected that there is an ESD problem in the LCD, and when the TE signal is normal, refreshes the LCD, It avoids the problem that the TE signal disappears due to the interference of the electrostatic discharge on the LCD hardware, which causes the system to freeze and fix the screen, which speeds up the ESD recovery speed and improves the user experience.
  • FIG. 1 is a schematic structural diagram of a functional machine provided by an embodiment of the present application.
  • FIG. 2 is a schematic flowchart of an electrostatic discharge detection method provided by an embodiment of the present application.
  • FIG. 3 is a schematic flowchart of a method for detecting a fixed screen problem provided by an embodiment of the present application
  • FIG. 4 is a schematic flowchart of a method for refreshing an LCD provided by an embodiment of the present application.
  • 5a is a schematic structural diagram of an electrostatic discharge detection device provided by an embodiment of the present application.
  • 5b is a schematic structural diagram of another electrostatic discharge detection device provided by an embodiment of the present application.
  • FIG. 6 is a schematic structural diagram of another functional machine provided by an embodiment of the present application.
  • At least one refers to one or more, and "a plurality” refers to two or more.
  • “And/or”, which describes the relationship of the associated objects, indicates that there can be three kinds of relationships, for example, A and/or B, it can indicate that A exists alone, A and B exist at the same time, and B exists alone, where A, B can be singular or plural.
  • the character “/” generally indicates that the associated objects are an “or” relationship.
  • “At least one item(s) below” or similar expressions thereof refer to any combination of these items, including any combination of single item(s) or plural items(s).
  • At least one item (a) of a, b, or c can represent: a, b, c, a-b, a-c, b-c, or a-b-c, where a, b, c may be single or multiple .
  • the ordinal numbers such as “first” and “second” mentioned in the embodiments of the present application are used to distinguish multiple objects, and are not used to limit the order, sequence, priority or priority of multiple objects. Importance.
  • the first information and the second information are only for distinguishing different information, and do not indicate the difference in content, priority, transmission order, or importance of the two kinds of information.
  • Electro-Static discharge Static electricity is a static charge, usually generated by mutual friction or induction between objects. When an object with static electricity contacts a zero-potential object or an object with a potential difference, charge transfer will occur, and a strong current will be generated instantaneously, that is, electrostatic discharge occurs.
  • the function machine is mainly a device with the function of making/receiving calls and sending and receiving short messages. Its structure is simple, that is, the function machine has only simple tools, and is mainly equipped with a function key device. Feature phones are not smart devices. Compared with smart devices, feature phones do not have touch functions and other powerful application functions.
  • Tear effect generally refers to the phenomenon of splitting the displayed picture, and also refers to the signal sent by the LCD during the display. This signal is used to synchronize the frame display between the main control chip and the LCD to prevent tearing.
  • the LCD has a full frame-length frame buffer (Frame Buffer) for storing frame data.
  • Frame data refers to a frame of image data sent by the main control chip in a certain frame period. Once the frame data is put into the frame buffer of the LCD, the data driver (Date Driver IC, DDIC) of the LCD will read the frame data from the frame buffer and display the data on the screen.
  • the main control chip When the main control chip writes frame data into the frame buffer, it is jointly controlled by the TE signal generated by the main control chip and the data driver of the LCD, and the data driver is also controlled by the TE signal when reading frame data from the frame buffer.
  • the main control chip receives the TE signal sent by the data driver, and starts to write data into the frame buffer at the rising edge of the TE signal; the data driver starts to read frame data from the frame buffer at the falling edge of the TE signal.
  • the present application proposes an electrostatic discharge detection method. After detecting the LCD hardware problem caused by ESD, the software will detect whether the TE signal of the LCD has been normal to determine that the LCD has returned to normal. When the LCD has returned to normal Then notify the APP to refresh the LCD to avoid the disappearance of the TE signal due to the interference of the electrostatic discharge on the LCD hardware, so that the LCD has not returned to normal and the LCD has been refreshed. .
  • FIG. 1 is a schematic structural diagram of a functional machine provided by an embodiment of the present application.
  • the functional machine 100 may include a main control chip 110, a memory 120, an LCD 130, and the like.
  • the LCD 130 is connected with the main control chip 110, and the main control chip 110 is connected with the memory 120.
  • Functional machines can include various functional handheld devices with wireless communication capabilities, functional vehicle-mounted devices, functional wearable devices, functional computing devices, or other processing devices connected to wireless modems, and various forms of User Equipment (UE) , mobile station (Mobile Station, MS), feature machine (terminal device) and so on.
  • UE User Equipment
  • MS Mobile Station
  • feature machine terminal device
  • the functional machine 100 may further include a mobile communication module, and the mobile communication module may support 4G wireless communication.
  • the mobile communication module may include at least one filter, switch, power amplifier, low noise amplifier (LNA) and the like.
  • the mobile communication module can receive electromagnetic waves by the antenna 1, filter and amplify the received electromagnetic waves, and transmit them to the modulation and demodulation processor for demodulation.
  • the mobile communication module can also amplify the signal modulated by the modulation and demodulation processor, and then turn it into electromagnetic waves to radiate out through the antenna 1 .
  • the structures illustrated in the embodiments of the present application do not constitute a specific limitation on the functional machine 100 .
  • the functional machine 100 may include more or less components than shown, or some components are combined, or some components are separated, or different components are arranged.
  • the illustrated components may be implemented in hardware, software, or a combination of software and hardware.
  • FIG. 2 is a schematic flowchart of an electrostatic discharge detection method provided by an embodiment of the present application, which is applied to the functional machine shown in FIG. 1;
  • the electrostatic discharge detection method includes:
  • the function machine when the function machine detects a screen bright request, it wakes up the LCD and starts ESD detection at the same time, that is, triggers the ESD detection program; or when the LCD continues to display, the function machine can periodically trigger the ESD detection program.
  • an ESD recovery operation is performed.
  • the process of performing the recovery ESD recovery operation in order to avoid the screen refresh operation before the LCD returns to normal, and the system stuck and fixed screen problem caused by the competition between the display thread and the ESD detection thread for the ESD semaphore, you can detect the tearing Whether the effect TE signal can perform the screen refresh operation.
  • the TE signal is normal, it means that the LCD has returned to normal and the screen refresh operation can be performed; when the TE signal is abnormal, it means that the LCD has not returned to normal and the screen refresh operation cannot be performed at present.
  • the detecting whether the TE signal is normal includes: acquiring a first register, where the first register is used to indicate whether the TE signal is received; when the value of the first register is a first value, detecting The TE signal is normal; when the value of the first register is the second value, it is detected that the TE signal is abnormal.
  • the first register is a register in the main control chip for indicating whether the TE signal is received, the first value may be 1, and the second value may be 0.
  • the value of the first register is 1, it means that the TE signal is normal, and there is no electrostatic discharge interfering with the LCD hardware, so the main control chip receives the TE signal sent by the LCD; when the value of the first register is 0, it means that the TE signal is abnormal, Electrostatic discharge interferes with the LCD hardware and causes the TE signal to disappear. Therefore, the main control chip cannot receive the TE signal sent by the LCD, so that the display synchronization between the main control chip and the LCD cannot be performed.
  • the first value may be 0 and the second value may be 1. When the value of the first register is 0, it indicates that the TE signal is normal; when the value of the first register is 1, it indicates that the TE signal is abnormal.
  • the functional machine determines that the LCD has the ESD problem, it performs a preset ESD recovery operation; if the functional machine determines that the LCD does not have the ESD problem, it starts the next detection .
  • the starting the next detection includes the functional machine starting ESD detection, when detecting that the ESD problem exists in the liquid crystal display screen LCD, detecting whether the tearing effect TE signal is normal, and when the TE signal is normal, refreshing all described LCD.
  • the method further includes: before detecting whether the tearing effect TE signal is normal or when the TE signal is abnormal, sending a reset command to the LCD, and downloading an initialization code from a chip of the LCD, so that the The reset command is used to reset the parameters of the LCD, and the initialization code is used to initialize the parameters of the LCD.
  • ESD recovery operations are performed when an ESD problem is detected.
  • the ESD recovery operation needs to reset the LCD.
  • the main control chip sends a reset command to the LCD to reset the parameters of the LCD, and downloads initialization code from the LCD chip to initialize the parameters of the LCD. Then check whether the TE signal sent by the LCD is normal. If the TE signal is abnormal, repeat the previous process again; if the TE signal is normal, then notify the LCD to refresh the screen and refresh the display.
  • the ESD problem includes a fixed screen problem and a blurry screen problem; as shown in FIG. 3 , the detection of the fixed screen problem specifically includes the following steps:
  • the LCD display fixed screen problem and the LCD display screen problem mainly occur.
  • the detection of fixed screen problems can be done through the ESD semaphore and ESD global variables.
  • the main control chip needs to obtain the ESD signal amount when executing the display program and the ESD detection program. Therefore, it is necessary to obtain the ESD signal amount to the ESD detection program during ESD detection to ensure that the display program and the ESD detection program are both running.
  • Global variables can only be occupied by the ESD detection program.
  • the main control chip After acquiring the ESD semaphore, the main control chip executes the ESD detection procedure after waiting for the first time period.
  • the first duration is the duration for completing the brushing of a frame of pictures, so that when the ESD detection program is executed after waiting for the first duration, it is displayed that the execution of the program has been completed.
  • the first duration may be set according to a specific implementation scenario, for example, 300ms, 500ms, 600ms, 800ms, etc., which is not limited in this embodiment of the present application.
  • the ESD global variable is the first value, it means that when the ESD detection program is run, the display program has not been completed, so it is considered that a screen-fixing problem occurs at this time.
  • the ESD global variable is the second value, it means that when the ESD detection program is executed, the display program has been executed, and the screen fixing problem does not occur at this time.
  • the detection of the blurry screen problem specifically includes the following steps: acquiring a second register, where the second register is used to indicate the display state of the LCD; comparing the value of the second register with the third value, The third value is the value of the second register when the functional machine is powered on; if the value of the second register is not equal to the third value, it is detected that the LCD has the blurry screen problem.
  • the main control chip when the ESD detection program is triggered, the main control chip will read the second register in the LCD chip, and the value of the second register can display the current display state of the LCD.
  • the value of the second register By comparing the current value of the second register with the value of the second register when the functional machine is powered on, it can be detected whether a screen problem occurs at present. Specifically, if the value of the second register is relative to the value of the second register when the functional machine is powered on If the value changes, it means that the current LCD display is abnormal, and there is a problem of blurred screen.
  • the value of the second register is exactly the same as the value of the second register when the function machine is powered on, it means that the current LCD display is normal.
  • the ESD detection program may release the ESD signal amount, so that when the TE signal is normal, the display program is executed.
  • the main control chip can notify a man-machine interface (Man-Machine Interface, MMI) to refresh the current screen display.
  • MMI Man-Machine Interface
  • the refreshing of the LCD includes the following steps:
  • the main control chip obtains the ESD semaphore, and sends the ESD semaphore to the display program to ensure that the ESD global variable can only be occupied by the display program.
  • the ESD global variable is set to the first value. Then refresh and display the LCD. If the LCD displays normally, it means that the display program is completed. Therefore, the ESD global variable is set to the second value to indicate that the LCD is not locked. At the same time, the ESD signal is released to Run the ESD detection procedure.
  • the electrostatic discharge detection method proposed in the embodiment of the present application starts the electrostatic discharge ESD detection, and then detects whether the tearing effect TE signal is normal when it is detected that there is an ESD problem in the LCD.
  • the TE signal is normal, refresh For LCD, it avoids the problem of system stuck and fixed screen caused by the disappearance of TE signal caused by electrostatic discharge to LCD hardware interference, which speeds up ESD recovery speed and improves user experience.
  • the function machine includes corresponding hardware structures and/or software modules for executing each function.
  • the present application can be implemented in hardware or in the form of a combination of hardware and computer software, in combination with the units and algorithm steps of each example described in the embodiments provided herein. Whether a function is performed by hardware or computer software driving hardware depends on the specific application and design constraints of the technical solution. Skilled artisans may implement the described functionality using different methods for each particular application, but such implementations should not be considered beyond the scope of this application.
  • the functional machine may be divided into functional units according to the foregoing method examples.
  • each functional unit may be divided into each function, or two or more functions may be integrated into one processing unit.
  • the above-mentioned integrated units may be implemented in the form of hardware, or may be implemented in the form of software functional units. It should be noted that the division of units in the embodiments of the present application is illustrative, and is only a logical function division, and other division methods may be used in actual implementation.
  • FIG. 5a is a block diagram of functional units of an electrostatic discharge detection device provided by an embodiment of the present application.
  • the device 500 is applied to a functional machine, and the device 500 includes: a startup unit 510, a detection unit 520, and a refresh unit 530, of which,
  • the starting unit 510 is used for starting electrostatic discharge ESD detection
  • the detection unit 520 is configured to detect whether the tearing effect TE signal is normal when it is detected that the liquid crystal display screen LCD has the ESD problem;
  • the refresh unit 530 is configured to refresh the LCD when the TE signal is normal.
  • the electrostatic discharge ESD detection is started by the activation unit.
  • the detection unit detects that there is an ESD problem in the LCD, it detects whether the tearing effect TE signal is normal, and the refresh unit is in the TE.
  • the signal is normal, the LCD is refreshed, which avoids the problem that the TE signal disappears due to the interference of the electrostatic discharge on the LCD hardware, which causes the system to freeze and fix the screen, which speeds up the ESD recovery speed and improves the user experience.
  • the detection unit 520 is specifically configured to: acquire a first register, where the first register is used to indicate whether the TE signal is received; when the value of the first register is a first value, detect the The TE signal is normal; when the value of the first register is the second value, it is detected that the TE signal is abnormal.
  • FIG. 5b it is a block diagram of the functional units of another electrostatic discharge detection device 500 provided in the embodiment of the present application, and the device 500 further includes:
  • the recovery unit 540 is configured to send a reset command to the LCD before detecting whether the tearing effect TE signal is normal or when the TE signal is abnormal, and download the initialization code from the chip of the LCD, and the reset command uses For resetting the parameters of the LCD, the initialization code is used to initialize the parameters of the LCD.
  • the ESD problem includes a fixed screen problem and a blurry screen problem
  • the detection unit 520 is specifically configured to: obtain the ESD signal quantity, the ESD is used to indicate the current running program; after the first time period, read the ESD global variable; if the ESD global The variable is the first value, and it is detected that the LCD has the fixed screen problem.
  • the detection unit 520 is specifically configured to: acquire a second register, the second register is used to indicate the display state of the LCD; compare the value of the second register with the first register; Three values are compared, and the third value is the value of the second register when the functional machine is turned on; if the value of the second register is not equal to the third value, the LCD is detected to have the problem of the blurred screen. .
  • the refresh unit 530 is specifically configured to: acquire the ESD semaphore; read the ESD global variable, and set the ESD global variable to the first value; display the LCD; The LCD displays normally, the ESD global variable is set to the second value, and the ESD signal quantity is released.
  • FIG. 6 is another functional machine provided by an embodiment of the present application.
  • the functional machine includes: a processor, a memory, a transceiver, and one or more programs.
  • the processor, memory and transceiver are interconnected by a communication bus.
  • Memory includes, but is not limited to, random access memory (RAM), read-only memory (ROM), erasable programmable read only memory (EPROM), or portable Read-only memory (compact disc read-only memory, CD-ROM), which is used for related computer programs and data.
  • RAM random access memory
  • ROM read-only memory
  • EPROM erasable programmable read only memory
  • CD-ROM compact disc read-only memory
  • the communication interface is used to receive and send data.
  • the processor may be one or more central processing units (central processing units, CPUs).
  • CPUs central processing units
  • the CPU may be a single-core CPU or a multi-core CPU.
  • the one or more programs are stored in the memory and are configured to be executed by the processor; the programs include instructions for performing the steps of:
  • An embodiment of the present application further provides a chip system, the chip system includes at least one processor, a memory, and an interface circuit, the memory, the transceiver, and the at least one processor are interconnected by lines, and the at least one memory
  • a computer program is stored in the computer; the computer program is executed by the processor part or all of the steps of any method described in the above method embodiment.
  • Embodiments of the present application further provide a computer storage medium, wherein the computer storage medium stores a computer program for electronic data exchange, and the computer program causes the computer to execute part or all of the steps of any method described in the above method embodiments .
  • Embodiments of the present application further provide a computer program product, where the computer program product includes a non-transitory computer-readable storage medium storing a computer program, and the computer program is operable to cause a computer to execute any one of the method embodiments described above. some or all of the steps of the method.
  • the computer program product may be a software installation package.
  • the disclosed apparatus may be implemented in other manners.
  • the device embodiments described above are only illustrative.
  • the division of the above units is only a logical function division. In actual implementation, there may be other division methods.
  • multiple units or components may be combined or integrated. to another system, or some features can be ignored, or not implemented.
  • the shown or discussed mutual coupling or direct coupling or communication connection may be through some interfaces, indirect coupling or communication connection of devices or units, and may be in electrical or other forms.
  • the units described above as separate components may or may not be physically separated, and components shown as units may or may not be physical units, that is, may be located in one place, or may be distributed to multiple network units. Some or all of the units may be selected according to actual needs to achieve the purpose of the solutions of the embodiments of the present application.
  • each functional unit in each embodiment of the present application may be integrated into one processing unit, or each unit may exist physically alone, or two or more units may be integrated into one unit.
  • the above-mentioned integrated units may be implemented in the form of hardware, or may be implemented in the form of software functional units.
  • the above-mentioned integrated units if implemented in the form of software functional units and sold or used as independent products, may be stored in a computer-readable memory.
  • the technical solution of the present application can be embodied in the form of a software product in essence, or the part that contributes to the prior art, or all or part of the technical solution, and the computer software product is stored in a memory.
  • a computer device which may be a personal computer, a server, or a network device, etc.
  • the aforementioned memory includes: U disk, read-only memory (ROM, Read-Only Memory), random access memory (RAM, Random Access Memory), mobile hard disk, magnetic disk or optical disk and other media that can store program codes.

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Abstract

一种静电释放检测方法及装置（500），该方法包括：启动静电释放ESD检测（S210），在检测到LCD（130）存在ESD问题时，再检测撕裂效应TE信号是否正常（S220），在TE信号正常时，刷新LCD（130）（S230），避免了因静电释放对LCD（130）硬件干扰造成TE信号消失使得系统卡死定屏问题，加快了ESD恢复速度，提高了用户体验。

Description

静电释放检测方法及装置 技术领域
本申请涉及电子技术领域，具体涉及一种静电释放检测方法及装置。
背景技术
功能机时在使用时需要通过多种检测，其中静电释放(Electro-Static discharge，ESD)测试是功能机的检测之一。在功能机进行ESD测试时，静电会对液晶显示器(Liquid Crystal Display，LCD)硬件干扰造成LCD中用于信号反馈的撕裂效应(Tear Effect，TE)信号消失，从而导致功能机的故障或误动作，例如导致功能机花屏、定屏或黑屏，影响着用户对功能机整体性能的体验。
发明内容
本申请实施例提供了一种静电释放检测方法及装置，能够加快ESD恢复速度，防止出现系统卡死定屏问题，提高用户体验。
第一方面，本申请实施例提供一种静电释放检测方法，应用于功能机，所述方法包括：
启动静电释放ESD检测；
在检测到液晶显示屏LCD存在所述ESD问题时，检测撕裂效应TE信号是否正常；
在所述TE信号正常时，刷新所述LCD。
第二方面，本申请实施例提供一种静电释放检测装置，应用于功能机，所述装置包括：
启动单元，用于启动静电释放ESD检测；
检测单元，用于在检测到液晶显示屏LCD存在所述ESD问题时，检测撕裂效应TE信号是否正常；
刷新单元，用于在所述TE信号正常时，刷新所述LCD。
第三方面，本申请实施例提供一种功能机，所述功能机包括处理器、存储器、通信接口，以及一个或多个程序，所述一个或多个程序被存储在所述存储器中，并且被配置由所述处理器执行，所述程序包括用于执行上述第一方面所述的方法中所描述的部分或全部步骤的指令。
第四方面，本申请实施例提供一种计算机可读存储介质，所述计算机可读存储介质存储用于电子数据交换的计算机程序，其中，所述计算机程序使得计算机执行上述第一方面所述的方法中所描述的部分或全部步骤。
第五方面，本申请实施例提供了一种计算机程序产品，其中，上述计算机程序产品包括存储了计算机程序的非瞬时性计算机可读存储介质，上述计算机程序可操作来使计算机执行如本申请实施例第一方面所述的方法中所描述的部分或全部步骤。该计算机程序产品可以为一个软件安装包。
第六方面，提供了芯片系统，所述芯片系统包括至少一个处理器，存储器和接口电路，所述存储器、所述收发器和所述至少一个处理器通过线路互联，所述至少一个存储器中存储有计算机程序；所述计算机程序被所述处理器执行时实现第一方面所述的方法。
通过实施本申请实施例，本申请提供的技术方案通过启动静电释放ESD检测，在检测到LCD存在ESD问题时，再检测撕裂效应TE信号是否正常，在所述TE信号正常时，刷新LCD，避免了因静电释放对LCD硬件干扰造成TE信号消失使得系统卡死定屏问题，加快了ESD恢复速度，提高了用户体验。
附图说明
为了更清楚地说明本申请实施例中的技术方案，下面将对实施例中所需要使用的附图作简单地介绍，显而易见地，下面描述中的附图是本申请的一些实施例，对于本领域普通技术人员来讲，在不付出创造性劳动的前提下，还可以根据这些附图获得其他的附图。
图1是本申请实施例提供一种功能机的结构示意图；
图2是本申请实施例提供一种静电释放检测方法的流程示意图；
图3是本申请实施例提供一种定屏问题检测方法的流程示意图；
图4是本申请实施例提供一种刷新LCD方法的流程示意图；
图5a本申请实施例提供的一种静电释放检测装置的结构示意图；
图5b本申请实施例提供的另一种静电释放检测装置的结构示意图；
图6是本申请实施例提供另一种功能机的结构示意图。
具体实施方式
下面将结合附图，对本申请中的技术方案进行描述。
应理解，本申请实施例中涉及的“至少一个”是指一个或者多个，“多个”是指两个或两个以上。“和/或”，描述关联对象的关联关系，表示可以存在三种关系，例如，A和/或B，可以表示：单独存在A，同时存在A和B，单独存在B的情况，其中A,B可以是单数或者复数。字符“/”一般表示前后关联对象是一种“或”的关系。“以下至少一项(个)”或其类似表达，是指的这些项中的任意组合，包括单项(个)或复数项(个)的任意组合。例如，a,b,或c中的至少一项(个)，可以表示：a,b,c,a-b,a-c,b-c,或a-b-c，其中a,b,c可以是单个，也可以是多个。
以及，除非有相反的说明，本申请实施例提及“第一”、“第二”等序数词是用于对多个对象进行区分，不用于限定多个对象的顺序、时序、优先级或者重要程度。例如，第一信息和第二信息，只是为了区分不同的信息，而并不是表示这两种信息的内容、优先级、发送顺序或者重要程度等的不同。
为了更好地理解本申请实施例的方案，下面先对本申请实施例可能涉及的相关术语和概念进行介绍。
静电释放(Electro-Static discharge，ESD)：静电是一种处于静止状态的电荷，通常是由物体间的相互摩擦或感应而产生的。当带静电物体接触零电位物体或与其有电位差的物体时都会发生电荷转移，瞬间产生较强的电流，即发生了静电释放。
功能机：功能机主要为具有拨打/接听电话功能和收发短信功能的设备，其结构简单，即功能机只具有简单的工具，主要以设置有功能按键设备为主体。功能机非智能设备，与智能设备相比，功能机没有触摸功能以及其他强大的应用功能。
撕裂效应(Tear effect，TE)：一般指显示图片割裂的现象，也指显示中LCD发出的信号，该信号用于主控芯片与LCD之间帧显示同步，防止撕裂现象出现。LCD具有一个全帧长的帧缓冲器(Frame Buffer)，用来存储帧数据。帧数据是指某一帧周期中主控芯片下发的一帧图像数据。一但帧数据被放入LCD的帧缓冲器中，LCD的数据驱动器(Date Driver IC，DDIC)会从帧缓冲器中读取帧数据，并将数据显示在屏幕上。主控芯片向帧缓冲器中写入帧数据时，由主控芯片和LCD的数据驱动器产生的TE信号共同控制，数据驱动器从帧缓冲器中读取帧数据时也由TE信号控制。主控芯片接收数据驱动器发送的TE信号，并在TE信号的上升沿时刻开始将数据写入帧缓冲器中；数据驱动器在TE信号的下降沿时刻开始从帧缓冲器中读取帧数据。
目前，功能机作为消费电子产品，在日常使用中由于人体静电释放容易造成对电子元件损坏，除了硬件层面的防护手段，软件层面也需要对静电释放造成的屏幕显示异常进行 检测并恢复到正常显示。但是，在对功能机进行ESD测试时，静电释放会对LCD硬件干扰造成TE信号消失，此时ESD恢复流程与APP刷屏流程因为争夺ESD信号量，会造成系统卡死定屏问题。
为了解决上述问题，本申请提出了一种静电释放检测方法，软件在检测由于ESD造成的LCD硬件问题后，会检测LCD的TE信号是否已经正常来判断LCD已经恢复正常，在LCD已经恢复正常时再通知APP刷新LCD，避免了因静电释放对LCD硬件干扰造成TE信号消失，使得LCD并未恢复正常而已经刷新LCD从而造成的系统卡死定屏问题，加快了ESD恢复速度，提高了用户体验。
请参阅图1，图1是本申请实施例提供的一种功能机的结构示意图。如图1所示，所述功能机100包括可以包括主控芯片110、存储器120和LCD 130等。所述LCD 130与所述主控芯片110连接，所述主控芯片110和所述存储器120连接。功能机可以包括各种具有无线通信功能的功能手持设备、功能车载设备、功能可穿戴设备、功能计算设备或连接到无线调制解调器的其他处理设备，以及各种形式的用户设备(User Equipment，UE)，移动台(Mobile Station，MS)，功能机(terminal device)等等。
示例性地，所述功能机100还可以包括移动通信模块，该移动通信模块可以支持4G的无线通信。移动通信模块可以包括至少一个滤波器，开关，功率放大器，低噪声放大器(low noise amplifier，LNA)等。移动通信模块可以由天线1接收电磁波，并对接收的电磁波进行滤波，放大等处理，传送至调制解调处理器进行解调。移动通信模块还可以对经调制解调处理器调制后的信号放大，经天线1转为电磁波辐射出去。
可以理解的是，本申请实施例示意的结构并不构成对功能机100的具体限定。在本申请另一些实施例中，功能机100可以包括比图示更多或更少的部件，或者组合某些部件，或者拆分某些部件，或者不同的部件布置。图示的部件可以以硬件，软件或软件和硬件的组合实现。
与上述图1所示的实施例一致的，请参阅图2，图2是本申请实施例提供的一种静电释放检测方法的流程示意图，应用于如图1所示的功能机；如图2所示，该静电释放检测方法包括：
S210、启动静电释放ESD检测。
在本申请实施例中，功能机在检测到亮屏请求时，唤醒LCD，同时启动ESD检测，即触发ESD检测程序；或者在LCD持续显示时，功能机可以周期性地触发ESD检测程序。
S220、在检测到液晶显示屏LCD存在ESD问题时，检测撕裂效应TE信号是否正常。
其中，在功能机检测到LCD存在所述ESD问题时，则执行ESD恢复操作。在执行恢复ESD恢复操作的过程中，为了避免LCD未恢复正常就执行刷屏操作，以及因为显示线程与ESD检测线程对ESD信号量的竞争造成的系统卡死定屏问题，可以通过检测撕裂效应TE信号是否可以进行刷屏操作。当TE信号正常时，表示LCD恢复正常、当前可以执行刷屏操作；当TE信号异常时，表示LCD未恢复正常、当前不可以执行刷屏操作。
可选的，所述检测TE信号是否正常，包括：获取第一寄存器，所述第一寄存器用于指示是否接收到所述TE信号；在所述第一寄存器的值为第一值时，检测所述TE信号为正常；在所述第一寄存器的值为第二值时，检测所述TE信号为异常。
其中，所述第一寄存器为所述主控芯片中用于指示是否接收到所述TE信号的寄存器，所述第一值可以为1，所述第二值可以为0。当第一寄存器的值为1时，表示TE信号正常，未有静电释放干扰LCD硬件，因此主控芯片接收到LCD发出的TE信号；当第一寄存器的值为0时，表示TE信号异常，有静电释放干扰LCD硬件造成TE信号消失，因此主控芯片无法接收到LCD发出的TE信号，从而无法进行主控芯片与LCD之间的显示同步。示例性地，所述第一值可以为0，所述第二值为1。当第一寄存器的值为0时，表示TE信 号正常；当第一寄存器的值为1时，表示TE信号异常。
在一个可能的示例中，所述功能机若确定出LCD存在所述ESD问题，则执行预设的ESD恢复操作；所述功能机若确定出LCD不存在所述ESD问题，则开始下一次检测。
其中，所述开始下一次检测包括所述功能机启动ESD检测，在检测到液晶显示屏LCD存在所述ESD问题时，检测撕裂效应TE信号是否正常，在所述TE信号正常时，刷新所述LCD。
可见，本示例中，若确定出LCD不存在所述ESD问题，则开始下一次检测，不断循环。确保用户在使用过程中通过ESD检测，能够及时发现花屏、闪屏等问题，有利于提高静电释放ESD检测的准确性。
可选的，所述方法还包括：在检测撕裂效应TE信号是否正常之前或在所述TE信号异常时，向所述LCD发送复位命令，并从所述LCD的芯片上下载初始化代码，所述复位命令用于将所述LCD的参数进行复位，所述初始化代码用于初始化所述LCD的参数。
其中，在检测到ESD问题时会执行ESD恢复操作。ESD恢复操作需要复位LCD，具体为主控芯片向LCD发送复位命令将LCD的参数进行复位，并从LCD的芯片上下载初始化代码初始化所述LCD的参数。然后检测LCD发送的TE信号是否已经正常，TE信号异常，则再次重复之前过程；TE信号正常，则通知对LCD刷屏，刷新显示。
可选的，所述ESD问题包括定屏问题和花屏问题；如图3所示，所述定屏问题的检测具体包括以下步骤：
S21、获取ESD信号量，所述ESD用于指示当前的运行程序。
其中，在ESD检测中，主要出现LCD显示定屏问题和LCD显示花屏问题。定屏问题的检测可以通过ESD信号量和ESD全局变量来完成。主控芯片在执行显示程序和ESD检测程序时都需要获取ESD信号量，因此在进行ESD检测时需要将获取ESD信号量给ESD检测程序，以保证显示程序和ESD检测程序均在运行时，ESD全局变量只能被ESD检测程序占有。
S22、在第一时长后，读取ESD全局变量。
在获取ESD信号量后，主控芯片等待第一时长后，在执行ESD检测程序。所述第一时长为一帧图片刷图完成的时长，这样当等待第一时长后执行ESD检测程序时，显示程序已经运行完成。所述第一时长可以根据具体实施场景设置，例如300ms、500ms、600ms、800ms等，本申请实施例对此不做限定。
S23、若所述ESD全局变量为所述第一值，检测所述LCD出现所述定屏问题。
具体地，若ESD全局变量为第一值，表示运行ESD检测程序时，显示程序还没运行完成，因此认为此时发生定屏问题。示例性地，若ESD全局变量为第二值，表示运行ESD检测程序时，显示程序已运行完成，此时未发生定屏问题。
可选的，所述花屏问题的检测具体包括以下步骤：获取第二寄存器，所述第二寄存器用于指示所述LCD的显示状态；将所述第二寄存器的值与第三值进行比较，所述第三值为所述功能机开机时所述第二寄存器的值；若所述第二寄存器的值不等于所述第三值，检测所述LCD出现所述花屏问题。
在本申请中，在触发ESD检测程序时，主控芯片会读取LCD芯片中的第二寄存器，第二寄存器的值可以显示当前LCD的显示状态。通过将当前第二寄存器的值与功能机开机时所述第二寄存器的值进行比较可以检测当前是否出现花屏问题，具体为若第二寄存器的值相对于功能机开机时所述第二寄存器的值有发生变化，则表示当前LCD显示异常，出现花屏问题。示例性地，若第二寄存器的值相对于功能机开机时所述第二寄存器的值完全相同，则表示当前LCD显示正常。
在本申请实施例中，在读取到ESD全局变量后，ESD检测程序可以释放ESD信号量， 以使得在所述TE信号正常时，执行显示程序。
S230、在所述TE信号正常时，刷新所述LCD。
其中，在检测到TE信号正常时，主控芯片可以通知人机界面(Man-Machine Interface，MMI)刷新当前屏幕显示。
可选的，如图4所示，所述刷新所述LCD，包括以下步骤：
S31、获取所述ESD信号量。
其中，主控芯片获取ESD信号量，并将该ESD信号量给显示程序以保证ESD全局变量只能被显示程序占有。
S32、读取所述ESD全局变量，并将所述ESD全局变量置为所述第一值。
S33、显示所述LCD，若所述LCD正常显示，将所述ESD全局变量置为所述第二值，并释放所述ESD信号量。
其中，在所述LCD正常显示之前，先将ESD全局变量置为第一值。然后刷新显示LCD，若所述LCD正常显示，表示显示程序运行完成，因此再将所述ESD全局变量置为所述第二值，指示LCD未发生定屏情况，同时释放所述ESD信号量以运行ESD检测程序。
可以看出，本申请实施例提出的静电释放检测方法，通过启动静电释放ESD检测，在检测到LCD存在ESD问题时，再检测撕裂效应TE信号是否正常，在所述TE信号正常时，刷新LCD，避免了因静电释放对LCD硬件干扰造成TE信号消失使得系统卡死定屏问题，加快了ESD恢复速度，提高了用户体验。
上述主要从方法侧执行过程的角度对本申请实施例的方案进行了介绍。可以理解的是，功能机为了实现上述功能，其包含了执行各个功能相应的硬件结构和/或软件模块。本领域技术人员应该很容易意识到，结合本文中所提供的实施例描述的各示例的单元及算法步骤，本申请能够以硬件或硬件和计算机软件的结合形式来实现。某个功能究竟以硬件还是计算机软件驱动硬件的方式来执行，取决于技术方案的特定应用和设计约束条件。专业技术人员可以对每个特定的应用使用不同方法来实现所描述的功能，但是这种实现不应认为超出本申请的范围。
本申请实施例可以根据上述方法示例对功能机进行功能单元的划分，例如，可以对应各个功能划分各个功能单元，也可以将两个或两个以上的功能集成在一个处理单元中。上述集成的单元既可以采用硬件的形式实现，也可以采用软件功能单元的形式实现。需要说明的是，本申请实施例中对单元的划分是示意性的，仅仅为一种逻辑功能划分，实际实现时可以有另外的划分方式。
请参阅图5a，图5a是本申请实施例提供的一种静电释放检测装置的功能单元组成框图，该装置500应用于功能机，所述装置500包括：启动单元510、检测单元520和刷新单元530，其中，
所述启动单元510，用于启动静电释放ESD检测；
所述检测单元520，用于在检测到液晶显示屏LCD存在所述ESD问题时，检测撕裂效应TE信号是否正常；
所述刷新单元530，用于在所述TE信号正常时，刷新所述LCD。
可以看出，本申请实施例提供的静电释放检测装置，通过启动单元启动静电释放ESD检测，检测单元在检测到LCD存在ESD问题时，检测撕裂效应TE信号是否正常，刷新单元在所述TE信号正常时，刷新LCD，避免了因静电释放对LCD硬件干扰造成TE信号消失使得系统卡死定屏问题，加快了ESD恢复速度，提高了用户体验。
可选的，所述检测单元520具体用于：获取第一寄存器，所述第一寄存器用于指示是否接收到所述TE信号；在所述第一寄存器的值为第一值时，检测所述TE信号为正常；在所述第一寄存器的值为第二值时，检测所述TE信号为异常。
可选的，如图5b所示，是本申请实施例提供的另一种静电释放检测装置500的功能单元组成框图，所述装置500还包括：
恢复单元540，用于在检测撕裂效应TE信号是否正常之前或在所述TE信号异常时，向所述LCD发送复位命令，并从所述LCD的芯片上下载初始化代码，所述复位命令用于将所述LCD的参数进行复位，所述初始化代码用于初始化所述LCD的参数。
可选的，所述ESD问题包括定屏问题和花屏问题；
在定屏问题的检测方面，所述检测单元520具体用于：获取ESD信号量，所述ESD用于指示当前的运行程序；在第一时长后，读取ESD全局变量；若所述ESD全局变量为所述第一值，检测所述LCD出现所述定屏问题。
可选的，在花屏问题的检测方面，所述检测单元520具体用于：获取第二寄存器，所述第二寄存器用于指示所述LCD的显示状态；将所述第二寄存器的值与第三值进行比较，所述第三值为所述功能机开机时所述第二寄存器的值；若所述第二寄存器的值不等于所述第三值，检测所述LCD出现所述花屏问题。
可选的，所述刷新单元530具体用于：获取所述ESD信号量；读取所述ESD全局变量，并将所述ESD全局变量置为所述第一值；显示所述LCD；若所述LCD正常显示，将所述ESD全局变量置为所述第二值，并释放所述ESD信号量。
可以理解的是，本申请实施例的静电释放检测装置的各程序模块的功能可根据上述方法实施例中的方法具体实现，其具体实现过程可以参照上述方法实施例的相关描述，此处不再赘述。
请参阅图6，图6是本申请实施例提供的另一种功能机，该功能机包括：处理器、存储器、收发器，以及一个或多个程序。所述处理器、存储器和收发器通过通信总线相互连接。
存储器包括但不限于是随机存储记忆体(random access memory，RAM)、只读存储器(read-only memory，ROM)、可擦除可编程只读存储器(erasable programmable read only memory，EPROM)、或便携式只读存储器(compact disc read-only memory，CD-ROM)，该存储器用于相关计算机程序及数据。通信接口用于接收和发送数据。
处理器可以是一个或多个中央处理器(central processing unit，CPU)，在处理器是一个CPU的情况下，该CPU可以是单核CPU，也可以是多核CPU。
所述一个或多个程序被存储在所述存储器中，并且被配置由所述处理器执行；所述程序包括用于执行以下步骤的指令：
启动静电释放ESD检测；
在检测到液晶显示屏LCD存在所述ESD问题时，检测撕裂效应TE信号是否正常；
在所述TE信号正常时，刷新所述LCD。
需要说明的是，本申请实施例的具体实现过程可参见上述方法实施例所述的具体实现过程，在此不再赘述。
本申请实施例还提供一种芯片系统，所述芯片系统包括至少一个处理器，存储器和接口电路，所述存储器、所述收发器和所述至少一个处理器通过线路互联，所述至少一个存储器中存储有计算机程序；所述计算机程序被所述处理器执行如上述方法实施例中记载的任一方法的部分或全部步骤。
本申请实施例还提供一种计算机存储介质，其中，该计算机存储介质存储用于电子数据交换的计算机程序，该计算机程序使得计算机执行如上述方法实施例中记载的任一方法的部分或全部步骤。
本申请实施例还提供一种计算机程序产品，上述计算机程序产品包括存储了计算机程序的非瞬时性计算机可读存储介质，上述计算机程序可操作来使计算机执行如上述方法实 施例中记载的任一方法的部分或全部步骤。该计算机程序产品可以为一个软件安装包。
需要说明的是，对于前述的各方法实施例，为了简单描述，故将其都表述为一系列的动作组合，但是本领域技术人员应该知悉，本申请并不受所描述的动作顺序的限制，因为依据本申请，某些步骤可以采用其他顺序或者同时进行。其次，本领域技术人员也应该知悉，说明书中所描述的实施例均属于优选实施例，所涉及的动作和模块并不一定是本申请所必须的。
在上述实施例中，对各个实施例的描述都各有侧重，某个实施例中没有详述的部分，可以参见其他实施例的相关描述。
在本申请所提供的几个实施例中，应该理解到，所揭露的装置，可通过其它的方式实现。例如，以上所描述的装置实施例仅是示意性的，例如上述单元的划分，仅仅为一种逻辑功能划分，实际实现时可以有另外的划分方式，例如多个单元或组件可以结合或者可以集成到另一个系统，或一些特征可以忽略，或不执行。另一点，所显示或讨论的相互之间的耦合或直接耦合或通信连接可以是通过一些接口，装置或单元的间接耦合或通信连接，可以是电性或其它的形式。
上述作为分离部件说明的单元可以是或者也可以不是物理上分开的，作为单元显示的部件可以是或者也可以不是物理单元，即可以位于一个地方，或者也可以分布到多个网络单元上。可以根据实际的需要选择其中的部分或者全部单元来实现本申请实施例方案的目的。
另外，在本申请各个实施例中的各功能单元可以集成在一个处理单元中，也可以是各个单元单独物理存在，也可以两个或两个以上单元集成在一个单元中。上述集成的单元既可以采用硬件的形式实现，也可以采用软件功能单元的形式实现。
上述集成的单元如果以软件功能单元的形式实现并作为独立的产品销售或使用时，可以存储在一个计算机可读取存储器中。基于这样的理解，本申请的技术方案本质上或者说对现有技术做出贡献的部分或者该技术方案的全部或部分可以以软件产品的形式体现出来，该计算机软件产品存储在一个存储器中，包括若干指令用以使得一台计算机设备(可为个人计算机、服务器或者网络设备等)执行本申请各个实施例方法的全部或部分步骤。而前述的存储器包括：U盘、只读存储器(ROM，Read-Only Memory)、随机存取存储器(RAM，Random Access Memory)、移动硬盘、磁碟或者光盘等各种可以存储程序代码的介质。
本领域普通技术人员可以理解上述实施例的各种方法中的全部或部分步骤是可以通过程序来指令相关的硬件来完成，该程序可以存储于一计算机可读存储器中，存储器可以包括：闪存盘、ROM、RAM、磁盘或光盘等。
以上对本申请实施例进行了详细介绍，本文中应用了具体个例对本申请的原理及实施方式进行了阐述，以上实施例的说明只是用于帮助理解本申请的方法及其核心思想；同时，对于本领域的一般技术人员，依据本申请的思想，在具体实施方式及应用范围上均会有改变之处，综上所述，本说明书内容不应理解为对本申请的限制。

Claims (15)

  1. 一种静电释放检测方法，其特征在于，应用于功能机，所述方法包括：
    启动静电释放ESD检测；
    在检测到液晶显示屏LCD存在ESD问题时，检测撕裂效应TE信号是否正常；
    在所述TE信号正常时，刷新所述LCD。
  2. 根据权利要求1所述的方法，其特征在于，所述检测TE信号是否正常，包括：
    获取第一寄存器，所述第一寄存器用于指示是否接收到所述TE信号；
    在所述第一寄存器的值为第一值时，检测所述TE信号为正常；
    在所述第一寄存器的值为第二值时，检测所述TE信号为异常。
  3. 根据权利要求2所述的方法，其特征在于，所述方法还包括：
    在检测撕裂效应TE信号是否正常之前或在所述TE信号异常时，向所述LCD发送复位命令，并从所述LCD的芯片上下载初始化代码，所述复位命令用于将所述LCD的参数进行复位，所述初始化代码用于初始化所述LCD的参数。
  4. 根据权利要求2或3所述的方法，其特征在在于，所述ESD问题包括定屏问题和花屏问题；
    所述定屏问题的检测具体包括：
    获取ESD信号量，所述ESD用于指示当前的运行程序；
    在第一时长后，读取ESD全局变量；
    若所述ESD全局变量为所述第一值，检测所述LCD出现所述定屏问题。
  5. 根据权利要求4所述的方法，其特征在于，所述花屏问题的检测具体包括：
    获取第二寄存器，所述第二寄存器用于指示所述LCD的显示状态；
    将所述第二寄存器的值与第三值进行比较，所述第三值为所述功能机开机时所述第二寄存器的值；
    若所述第二寄存器的值不等于所述第三值，检测所述LCD出现所述花屏问题。
  6. 根据权利要求4或5所述的方法，其特征在于，所述刷新所述LCD，包括：
    获取所述ESD信号量；
    读取所述ESD全局变量，并将所述ESD全局变量置为所述第一值；
    显示所述LCD，若所述LCD正常显示，将所述ESD全局变量置为所述第二值，并释放所述ESD信号量。
  7. 一种静电释放检测装置，其特征在于，应用于功能机，所述装置包括：
    启动单元，用于启动静电释放ESD检测；
    检测单元，用于在检测到液晶显示屏LCD存在所述ESD问题时，检测撕裂效应TE信号是否正常；
    刷新单元，用于在所述TE信号正常时，刷新所述LCD。
  8. 根据权利要求7所述的装置，其特征在于，在检测TE信号是否正常方面，所述检测单元具体用于：
    获取第一寄存器，所述第一寄存器用于指示是否接收到所述TE信号；
    在所述第一寄存器的值为第一值时，检测所述TE信号为正常；
    在所述第一寄存器的值为第二值时，检测所述TE信号为异常。
  9. 根据权利要求8所述的装置，其特征在于，所述装置还包括恢复单元，
    所述恢复单元，用于在检测撕裂效应TE信号是否正常之前或在所述TE信号异常时，向所述LCD发送复位命令，并从所述LCD的芯片上下载初始化代码，所述复位命令用于将所述LCD的参数进行复位，所述初始化代码用于初始化所述LCD的参数。
  10. 根据权利要求8或9所述的装置，其特征在在于，所述ESD问题包括定屏问题和花屏问题；
    在定屏问题的检测方面，所述检测单元具体用于：
    获取ESD信号量，所述ESD用于指示当前的运行程序；
    在第一时长后，读取ESD全局变量；
    若所述ESD全局变量为所述第一值，检测所述LCD出现所述定屏问题。
  11. 根据权利要求10所述的装置，其特征在于，在花屏问题的检测方面，所述检测单元具体用于：
    获取第二寄存器，所述第二寄存器用于指示所述LCD的显示状态；
    将所述第二寄存器的值与第三值进行比较，所述第三值为所述功能机开机时所述第二寄存器的值；
    若所述第二寄存器的值不等于所述第三值，检测所述LCD出现所述花屏问题。
  12. 根据权利要求10或11所述的装置，其特征在于，在刷新所述LCD方面，所述刷新单元具体用于：
    获取所述ESD信号量；
    读取所述ESD全局变量，并将所述ESD全局变量置为所述第一值；
    显示所述LCD，若所述LCD正常显示，将所述ESD全局变量置为所述第二值，并释放所述ESD信号量。
  13. 一种功能机，其特征在于，所述功能机包括处理器、存储器、通信接口，以及一个或多个程序，所述一个或多个程序被存储在所述存储器中，并且被配置由所述处理器执行，所述程序包括用于执行如权利要求1-6任一项所述的方法中的步骤的指令。
  14. 一种芯片系统，所述芯片系统包括至少一个处理器，存储器和接口电路，所述存储器、所述收发器和所述至少一个处理器通过线路互联，所述至少一个存储器中存储有计算机程序；所述计算机程序被所述处理器执行时实现如权利要求1-6任意一项所述的方法。
  15. 一种计算机可读存储介质，其特征在于，所述计算机可读存储介质存储用于电子数据交换的计算机程序，其中，所述计算机程序使得计算机执行如权利要求1-6任一项所述的方法的步骤。
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