CN116453439A

CN116453439A - Electronic equipment, detection circuit and detection method

Info

Publication number: CN116453439A
Application number: CN202310734650.8A
Authority: CN
Inventors: 李志方
Original assignee: Honor Device Co Ltd
Current assignee: Honor Device Co Ltd
Priority date: 2023-06-20
Filing date: 2023-06-20
Publication date: 2023-07-18

Abstract

An electronic device, a detection circuit and a detection method relate to the technical field of terminals. The electronic device comprises a main board, a display screen flexible circuit board, a display screen panel, a first resistor, a second resistor, a third resistor, an analog-to-digital converter and a processor. The first resistor and the analog-to-digital converter are positioned on the main board, and the second resistor and the third resistor are positioned on the flexible circuit board of the display screen; the first end of the first resistor is connected with a power supply on the main board, and the second end of the first resistor is connected with the analog-to-digital converter and the first end of the second resistor; the second end of the second resistor is connected with the first end of the third resistor; the second end of the third resistor is grounded on the display screen flexible circuit board, and the first end of the third resistor is grounded on the display screen panel through a detection wiring on the display screen panel; the processor determines whether the display screen flexible circuit board is successfully identified according to the detection result of the analog-to-digital converter, and determines whether the display screen panel is broken. The scheme reduces the layout space occupied by the detection circuit and reduces the hardware cost.

Description

Electronic equipment, detection circuit and detection method

Technical Field

The application relates to the technical field of terminals, in particular to electronic equipment, a detection circuit and a detection method.

Background

With the development of the fifth generation mobile communication technology (5th Generation Mobile Communication Technology,5G), electronic devices such as mobile phones and tablet computers are designed to be miniaturized while supporting 5G, and the space layout inside the electronic devices is increasingly tense, and the inside of the electronic devices generally includes a main board, an auxiliary board and a flexible circuit board (flexible printed circuit, FPC).

The electronic equipment manufacturer needs to detect the display screen to ensure that the display screen is qualified, and in addition, the user starts up to detect the state of the display screen. The detection includes display screen FPC identification detection and display screen panel (panel) breakage detection. Wherein, display screen FPC discernment detects and is used for detecting whether the FPC of display screen module has been discerned, and display screen panel fracture detection is used for detecting whether the display screen panel takes place the fracture. Currently, these two tests are respectively provided with a path of detection circuit, and a Analog-to-digital converter (ADC) processes the sampling voltage, which results in a large space occupied by the detection circuit and high cost of required hardware.

Disclosure of Invention

In order to solve the problems, the application provides electronic equipment, a detection circuit and a detection method, which reduce the layout space occupied by the detection circuit and reduce the hardware cost.

In a first aspect, the present application provides an electronic device that includes a motherboard, a display flexible circuit board, a display panel, a first resistor, a second resistor, a third resistor, an analog-to-digital converter, and a processor. The first resistor and the analog-to-digital converter are positioned on the main board, and the second resistor and the third resistor are positioned on the flexible circuit board of the display screen; the first end of the first resistor is connected with a power supply on the main board, and the second end of the first resistor is connected with the analog-to-digital converter and the first end of the second resistor; the second end of the second resistor is connected with the first end of the third resistor; the second end of the third resistor is grounded on the display screen flexible circuit board, the first end of the third resistor is grounded on the display screen panel through the detection wiring, and the detection wiring is positioned on the display screen panel; the processor determines whether the display screen flexible circuit board is successfully identified according to the detection result of the analog-to-digital converter, and determines whether the display screen panel is broken.

According to the technical scheme, a voltage dividing circuit is formed by the first resistor, the second resistor and the third resistor, the second end voltage of the first resistor is used as a detection result of the voltage, whether the display screen flexible circuit board is successfully identified or not is determined according to the detection result, and whether the display screen panel is broken or not is determined. Therefore, the identification detection of the flexible circuit board of the display screen and the fracture detection of the display screen panel are realized by using one detection circuit, the layout space is saved, the multiplexing of wiring is realized, the hardware cost is reduced, and the miniaturized design of the electronic equipment is facilitated.

In one possible implementation manner, the processor is specifically configured to read a device tree source code DTS of the electronic device, and obtain threshold range data detected by the display screen; and reading a detection result of the analog-to-digital converter, determining whether the display screen flexible circuit board is successfully identified or not according to the detection result and the threshold range data, and determining whether the display screen panel is broken or not.

In one possible implementation, the threshold range data includes a plurality of threshold ranges, where the plurality of threshold ranges may correspond to different vendors. The processor is specifically configured to determine that the display screen flexible circuit board is successfully identified when the detection result is in a first threshold range of the multiple threshold ranges; when the detection result is in a first sub-threshold range of the first threshold range, determining that the display screen panel is broken; when the detection result is in a second sub-threshold range of the first threshold range, determining that the display screen panel is not broken; and when the detection result is not in the multiple threshold ranges, determining that the display screen flexible circuit board fails to be identified.

In one possible implementation, the threshold range data includes a plurality of threshold ranges, where the plurality of threshold ranges may correspond to different vendors. The processor is specifically configured to determine that the display screen flexible circuit board is successfully identified when the detection result is in a first threshold range of the plurality of threshold ranges; when the detection result is in a first sub-threshold range of the first threshold range, determining that the display screen panel is broken; when the detection result is not in the first sub-threshold range, determining that the display screen panel is not broken; and when the detection result is not in the multiple threshold ranges, determining that the display screen flexible circuit board fails to be identified.

In one possible implementation, the threshold range data includes a plurality of threshold ranges, where the plurality of threshold ranges may correspond to different vendors. The processor is specifically configured to determine that the display screen flexible circuit board is successfully identified when the detection result is in a first threshold range of the multiple threshold ranges; when the detection result is in a first sub-threshold range of the first threshold range, determining that the display screen panel is not broken; when the detection result is not in the first sub-threshold range, determining that the display screen panel is broken; and when the detection result is not in the multiple threshold ranges, determining that the display screen flexible circuit board fails to be identified.

In one possible implementation, the threshold range data includes a plurality of sub-threshold ranges. The processor is specifically configured to determine that the display screen flexible circuit board is successfully identified and the display screen panel is broken when the detection result is in a first sub-threshold range of the multiple sub-threshold ranges; when the detection result is in a second sub-threshold range of the multiple sub-threshold ranges, determining that the display screen flexible circuit board is successfully identified and the display screen panel is not broken; and when the detection result is not in the multiple sub-threshold ranges, determining that the display screen flexible circuit board fails to be identified.

In one possible implementation, the second resistance is a zero ohm resistance. At this time, the second resistor can be regarded as a short circuit, so that the hardware cost is reduced.

In one possible implementation, the display screen flexible circuit board is a liquid crystal display (liquid crystal display, LCD) flexible circuit board and the display screen panel is an LCD panel.

In one possible implementation, the processor is further configured to record fault information in a system log of the electronic device when it is determined that the display panel breaks.

In a possible implementation manner, the processor is further configured to report fault information to the device monitoring server when it is determined that the display screen panel breaks.

In a second aspect, the present application further provides a detection method, to obtain a detection result of the analog-to-digital converter; and determining whether the display screen flexible circuit board is successfully identified or not according to the detection result, and determining whether the display screen panel is broken or not.

The detection method is based on one detection circuit to simultaneously realize the identification detection of the flexible circuit board of the display screen and the fracture detection of the panel of the display screen, so that the layout space is saved, the multiplexing of wiring is realized, the hardware cost is reduced, and the miniaturized design of the electronic equipment is facilitated. And the detection steps are simple, a plurality of data are not required to be obtained through testing, and the practicability is high.

In one possible implementation manner, the determining whether the display screen flexible circuit board is successfully identified according to the detection result, and determining whether the display screen panel is broken specifically includes:

reading a device tree source code DTS of the electronic device, and acquiring threshold range data detected by a display screen;

reading the detection result of the analog-to-digital converter;

And determining whether the display screen flexible circuit board is successfully identified or not and determining whether the display screen panel is broken or not according to the detection result and the threshold range data.

In one possible implementation manner, the threshold range data includes a plurality of threshold ranges, and the determining whether the display screen flexible circuit board is successfully identified and whether the display screen panel is broken according to the detection result and the threshold range data specifically includes:

when the detection result is in a first threshold range of the multiple threshold ranges, determining that the display screen flexible circuit board is successfully identified;

when the detection result is in a first sub-threshold range of the first threshold range, determining that the display screen panel is broken;

when the detection result is in a second sub-threshold range of the first threshold range, determining that the display screen panel is not broken;

and when the detection result is not in the multiple threshold ranges, determining that the display screen flexible circuit board fails to be identified.

when the detection result is not in the first sub-threshold range, determining that the display screen panel is not broken;

when the detection result is in a first sub-threshold range of the first threshold range, determining that the display screen panel is not broken;

when the detection result is not in the first sub-threshold range, determining that the display screen panel is broken;

In one possible implementation manner, the threshold range data includes a plurality of sub-threshold ranges, and the determining whether the flexible circuit board of the display screen is successfully identified and whether the display screen panel is broken according to the detection result and the threshold range data specifically includes:

when the detection result is in a first sub-threshold range of the multiple sub-threshold ranges, determining that the display screen flexible circuit board is successfully identified, and the display screen panel is broken;

when the detection result is in a second sub-threshold range of the multiple sub-threshold ranges, determining that the display screen flexible circuit board is successfully identified and the display screen panel is not broken;

and when the detection result is not in the multiple sub-threshold ranges, determining that the display screen flexible circuit board fails to be identified.

In one possible implementation, the method further includes: and when the display screen panel is determined to be broken, recording fault information in a system log of the electronic equipment. Fault information is recorded in the system log, and support can be provided for later maintenance of the electronic equipment.

In one possible implementation, the method further includes: and when the display screen panel is determined to be broken, reporting fault information to a device monitoring server. Therefore, manufacturers of the electronic equipment can acquire the fault information of the products, and further, targeted improvement and research and development are performed.

In a third aspect, the present application further provides a detection circuit, which is applied to an electronic device, the detection circuit including: the first resistor, the second resistor, the third resistor and the analog-to-digital converter; the first resistor and the analog-to-digital converter are positioned on the main board, and the second resistor and the third resistor are positioned on the flexible circuit board of the display screen; the first end of the first resistor is connected with a power supply on the main board, and the second end of the first resistor is connected with the analog-to-digital converter and the first end of the second resistor; the second end of the second resistor is connected with the first end of the third resistor; the second end of the third resistor is grounded on the display screen flexible circuit board, the first end of the third resistor is grounded on the display screen panel through a detection wire, and the detection wire is positioned on the display screen panel.

The detection circuit can simultaneously realize the identification and detection of the flexible circuit board of the display screen and the fracture detection of the display screen panel, optimize and save layout space, realize the multiplexing of wiring, reduce hardware cost and facilitate the realization of miniaturized design of electronic equipment.

In one possible implementation, the second resistance is a zero ohm resistance, thereby reducing hardware costs.

Drawings

FIG. 1 is a schematic circuit diagram of a display screen detection;

fig. 2 is a schematic diagram of an electronic device according to an embodiment of the present application;

fig. 3 is a schematic diagram of an electronic device according to an embodiment of the present application;

FIG. 4 is a schematic diagram of the principles provided by the embodiments of the present application;

FIG. 5 is a flowchart of a detection method according to an embodiment of the present application;

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

FIG. 7 is a flowchart of yet another detection method according to an embodiment of the present application;

FIG. 8 is a flowchart of yet another detection method according to an embodiment of the present application;

fig. 9 is a flowchart of another detection method according to an embodiment of the present application.

Detailed Description

In order to make the technical personnel in the technical field more clearly understand the scheme of the application, the application scenario of the technical scheme of the application is first described below.

The technical scheme provided by the application is applied to electronic equipment, and the electronic equipment can be a mobile phone, a notebook computer, a tablet personal computer, vehicle-mounted equipment and the like. The electronic device comprises a display screen module and a display screen panel.

The electronic equipment manufacturer needs to detect the display screen to ensure that the electronic equipment is qualified. The display screen detection comprises display screen FPC identification detection and display screen panel breakage detection.

Wherein, display screen FPC discernment detects and is used for detecting whether display screen FPC connects, and display screen panel fracture detection is used for detecting whether the display screen panel takes place the fracture.

Referring to fig. 1, a schematic circuit diagram of a display screen is shown.

The display is exemplified by a liquid crystal display (liquid crystal display, LCD). The display panel is an LCD panel at this time.

The circuit for realizing the identification and detection of the display screen FPC comprises a first detection circuit 13 and an ADC11. A first end of the first detection circuit 13 is connected to the power supply V1, and a second end of the first detection circuit 13 is grounded on the LCD FPC 20. The ADC11 is configured to process the sampled voltage, and the ADC11 is located on the motherboard 10. At the moment, according to the voltage obtained by sampling, the FPC identification detection of the display screen can be realized.

The circuit for implementing the display panel break detection, i.e. the LCD panel break detection, comprises a second detection circuit 14 and an ADC12. The first end of the second detection circuit 14 is connected to the power supply V2, and the second end of the second detection circuit 14 is grounded on the LCD panel 30. When the display panel is normal, the wiring connection on the LCD panel 30 is normal, the voltage sampling result of the ADC12 is a first voltage, when the display panel breaks, the wiring on the LCD panel 30 breaks correspondingly, and the voltage sampling result on the ADC12 is a second voltage, and because the first voltage and the second voltage are different, the detection of the break of the display panel can be achieved according to the detection result of the ADC12.

However, these two tests require a separate test loop, and the sampling voltage is processed by one ADC, which results in a large space occupied by the test circuit, which is not conducive to the miniaturization design of the electronic device, and requires higher hardware cost.

In order to solve the technical problems, the application provides electronic equipment, a detection circuit and a detection method, in the scheme, the identification detection of the flexible circuit board of the display screen and the fracture detection of the panel of the display screen are realized by using one detection circuit at the same time, so that the layout space is saved, the multiplexing of wiring is realized, the hardware cost is reduced, and the miniaturized design of the electronic equipment is facilitated.

In order to make the technical solution more clearly understood by those skilled in the art, the following description will refer to the technical solution in the embodiments of the present application with reference to the accompanying drawings in the embodiments of the present application.

The words "first," "second," and the like in the description herein are used for descriptive purposes only and are not to be interpreted as indicating or implying a relative importance or implicitly indicating the number of technical features indicated.

The embodiment of the application provides an electronic device, and the following description is made with reference to a specific implementation manner.

Referring to fig. 2, the diagram is an architecture diagram of an electronic device provided in an embodiment of the present application.

The electronic device 100 may include a processor 110, an external memory interface 120, an internal memory 121, a universal serial bus (universal serial bus, USB) interface 130, a charge management module 140, a power management module 141, a battery 142, an antenna group 1, an antenna group 2, a mobile communication module 150, a wireless communication module 160, an audio module 170, a speaker 170A, a receiver 170B, a microphone 170C, an earphone interface 170D, a sensor module 180, keys 190, a motor 191, an indicator 192, a camera 193, a display 194, and a user identification module (subscriber identification module, SIM) card interface 195, and a detection circuit 200, among others.

It should be understood that the illustrated structure of the embodiment of the present invention does not constitute a specific limitation on the electronic device 100. In other embodiments of the present application, electronic device 100 may include more or fewer components than shown, or certain components may be combined, or certain components may be split, or different arrangements of components. The illustrated components may be implemented in hardware, software, or a combination of software and hardware.

The processor 110 may include one or more processing units, such as: the processor 110 may include an application processor (application processor, AP), a modem processor, a graphics processor (graphics processing unit, GPU), an image signal processor (image signal processor, ISP), a controller, a video codec, a digital signal processor (digital signal processor, DSP), a baseband processor, and/or a neural network processor (neural-network processing unit, NPU), etc. Wherein the different processing units may be separate devices or may be integrated in one or more processors. The controller can generate operation control signals according to the instruction operation codes and the time sequence signals to finish the control of instruction fetching and instruction execution.

A memory may also be provided in the processor 110 for storing instructions and data. In some embodiments, the memory in the processor 110 is a cache memory. The memory may hold instructions or data that the processor 110 has just used or recycled. If the processor 110 needs to reuse the instruction or data, it can be called directly from the memory. Repeated accesses are avoided and the latency of the processor 110 is reduced, thereby improving the efficiency of the system.

The processor 110 may determine the recognition detection of the flexible circuit board of the display screen and the result of the breakage detection of the display screen panel according to the detection result obtained in the detection circuit 200.

It should be understood that the interfacing relationship between the modules illustrated in the embodiments of the present invention is only illustrative, and is not meant to limit the structure of the electronic device 100. In other embodiments of the present application, the electronic device 100 may also use different interfacing manners, or a combination of multiple interfacing manners in the foregoing embodiments.

The charge management module 140 is configured to receive a charge input from a charger. The charger can be a wireless charger or a wired charger.

The power management module 141 is used for connecting the battery 142, and the charge management module 140 and the processor 110. The power management module 141 receives input from the battery 142 and/or the charge management module 140 and provides power to the processor 110, the internal memory 121, the display 194, the camera 193, the detection circuit 200, the wireless communication module 160, and the like.

The display screen 194 is used to display images, videos, and the like. The display 194 includes a display panel. The display panel may employ a liquid crystal display (liquid crystal display, LCD), an organic light-emitting diode (OLED), an active-matrix organic light-emitting diode (AMOLED) or an active-matrix organic light-emitting diode (matrix organic light emitting diode), a flexible light-emitting diode (FLED), a Mini-Led, a Micro-OLED, a quantum dot light-emitting diode (quantum dot light emitting diodes, QLED), or the like. In some embodiments, the electronic device 100 may include 1 or N display screens 194, N being a positive integer greater than 1.

Implementations of the present application are specifically described below.

Referring to fig. 3, a schematic diagram of an electronic device according to an embodiment of the present application is shown.

The electronic device includes: the display panel comprises a main board 10, a display screen FPC20, a display screen panel 30, a first resistor R1, a second resistor R2, a processor 110 and an ADC111.

The detection circuit 200 in fig. 2 specifically includes a first resistor R1, a second resistor R2, and an ADC111.

The first resistor R1, the processor 110 and the ADC111 are located on the motherboard 10, and the second resistor R2 and the third resistor R3 are located on the display FPC20.

The first end of the first resistor R1 is connected to the power supply V1 on the motherboard, and the second end of the first resistor R1 is connected to the ADC111 and the first end of the second resistor R2. That is, the ADC11 is configured to sample the voltage at the second end of the first resistor R1, convert the detected analog voltage signal into a digital voltage signal, and transmit the digital voltage signal to the processor 110.

The power supply V1 in the embodiment of the present application is used to provide a voltage required for detection, and the voltage value of the power supply V1 in the embodiment of the present application is not particularly limited, and may be, for example, a voltage of 1.8V.

The second end of the second resistor R2 is connected to the first end of the third resistor R3.

The second end of the third resistor R3 is grounded on the display FPC20, and the first end of the third resistor R3 is grounded on the display panel 30 through a detection trace, where the detection trace is located on the display panel 30.

The resistance values of the first resistor R1, the second resistor R2 and the third resistor R3 are not particularly limited, and may be set according to actual detection requirements.

In this application scheme, in order to effectively detect the display screen panel fracture condition, the detection of the second end connection of third resistance R3 walks the line, encircles or encircle the edge back ground connection of part on display screen panel 30, namely walks the line through the extension and promotes the detectability.

In this application, a voltage dividing circuit is formed by using the first resistor R1, the second resistor R2 and the third resistor R3, the second terminal voltage of the first resistor R1 is used as the detection result of the voltage, and the processor 110 determines whether the flexible circuit board of the display screen is successfully identified and whether the display screen panel is broken according to the detection result, which is specifically described below.

When the display flexible circuit board identification detection is unsuccessful, for example, the connection between the first end of R2 and the motherboard 10 is disconnected, the second end of R1 is disconnected, the detection result of ADC11 is about the power voltage of the power V1, and further display panel breakage detection is not required because the display flexible circuit board identification is unsuccessful. Thus, when the ADC11 detects that the power supply voltage is about, it is indicated that the display flexible circuit board identification is unsuccessful.

When the display screen flexible circuit board is successfully identified and detected and the display screen panel 30 is not broken, the detection wiring on the display screen panel 30 shorts the third resistor R3, only the first resistor R1 and the second resistor R2 are connected into the circuit, and the ADC11 detection result is the voltage division of the second resistor R2. When the display screen flexible circuit board is successfully identified and detected, and the display screen panel 30 breaks, the detection wiring on the display screen panel 30 correspondingly breaks, the third resistor R3 is not shorted any more, at this time, the first resistor R1, the second resistor R2 and the third resistor R2 are all connected into a circuit, and the ADC11 detection result is the sum of the partial pressures of the second resistor R2 and the third resistor R3. The processor can determine whether the display panel 30 is broken according to the ADC11 detection result.

According to the scheme provided by the embodiment of the application, the display screen flexible circuit board is simultaneously identified and detected by the detection circuit, and the breakage of the display screen panel is detected, and the detection circuit only needs one analog-digital converter. In summary, the scheme provided by the embodiment of the application reduces the hardware cost and is beneficial to the realization of miniaturized design of the electronic equipment.

The following description is made in connection with specific implementations.

For convenience of explanation, the following embodiments will take a liquid crystal display (liquid crystal display, LCD) as a display screen and a voltage of 1.8V as a power source V1 as an example. The display panel is an LCD panel at this time.

With continued reference to the electronic device shown in fig. 3. The specific resistance and voltage values for implementing the LCD FPC identification test in fig. 3 are shown in the following table.

Table 1: circuit parameter and threshold value

Table 1 lists four possible implementations. Each set of implementation corresponds to a manufacturer of the display screen.

For the first, the R2 resistance is zero at this time. In one possible implementation, R2 may be zero ohm resistance at this point. The zero ohm resistor is also called a crossover resistor and is a resistor with special purpose, and the zero ohm resistor is not a real resistor with zero value, but is a resistor with small resistance value, so that the resistance value can be equivalent to zero. In another possible implementation, the resistor R2 may be replaced directly with a wire, i.e. without the resistor R2.

The typical detection voltage in table 2 is that ADC111 recognizes that the detection is successful at the LCD FPC, and the result of the detection of the breakage of the display panel is a theoretical value of the detection voltage when there is a breakage, where resistors R1, R2 and R3 are connected in series to the circuit, and the result of the detection is the sum of the divided voltages of resistors R2 and R3, and when the typical detection voltage is detected, it is determined that there is a breakage of the display panel at this time.

However, in practical applications, an error threshold is set for the typical detection voltage due to inaccurate resistance values of the resistors used or fluctuation of the resistance values occurring when the temperatures are different, and considering other errors that may be introduced. The upper threshold in table 1 is set to a typical detection voltage +0.100deg.V and the lower threshold is set to a typical detection voltage-0.100deg.V.

The upper and lower thresholds form a threshold range corresponding to the typical detection voltage.

With continued reference to the circuit shown in fig. 3, when the display panel is not broken, the detection circuits R1 and R2 are connected in series to the circuit, R3 is shorted, at this time, R1 is a pull-up resistor (pull-up resistor), R2 is a pull-down resistor (pull down resistor), and the detection result of the ADC111 is the voltage division of R2.

Fig. 3 shows the specific values of the resistance and the detection voltage when the LCD FPC is recognized and detected and the display panel is not broken, as shown in the following table.

Table 2: circuit parameter and threshold value

Table 2 lists four possible implementations. For the first, the R2 resistance is zero at this time.

The typical detection voltage in table 2 is a theoretical value of the detection voltage when the ADC11 recognizes that the detection is successful at the LCD FPC and the display panel is not broken, but in practical application, an error threshold is set for the typical detection voltage due to the fact that the resistance value of the resistor used may be inaccurate or the fluctuation of the resistance value occurs when the temperature is different, and other errors may be introduced. In Table 2, when the resistance value of R2 is not zero, the upper threshold is set to a typical detection voltage +0.300V and the lower threshold is set to a typical detection voltage-0.100V. When the R2 resistance value is zero, the upper threshold is set to 0.4000V, and the lower threshold is set to the lowest value of 0.

Comparing the data in tables 1 and 2, it can be found that the threshold range corresponding to each sequence number in table 1 is located in the threshold range corresponding to each sequence number in table 2. Specifically, the threshold range of the sequence number 1 in the table 1 is [0.100,0.300], and is located in the threshold range of the sequence number 1 in the table 2 [0.000,0.400 ]; the threshold range of number 2 in table 1 is [0.600,0.800] within the threshold range of number 2 in table 2 (0.400,0.800), the threshold range of number 3 in table 1 is [1.000,1.200] within the threshold range of number 3 in table 2 (0.800,1.200), and the threshold range of number 4 in table 1 is [1.400,1.600] within the threshold range of number 4 in table 2 (1.200,1.600).

The threshold ranges in tables 1 and 2 above may be calibrated in advance by testing and then stored in the electronic device.

The implementation of the processor for display screen detection is described in detail below.

The processor 110 reads the device tree source code (device tree source, DTS) of the electronic device. The DTS is a data structure describing hardware, and in the implementation of the present application, threshold range data of display screen detection of different display screen manufacturers may be stored in the DTS in advance. The processor 110 reads the detection result of the ADC111, and then determines whether the display flexible circuit board is successfully identified and whether the display panel is broken according to the detection result and the threshold range data.

Various implementations are described in detail below.

In one possible implementation, the threshold range data includes a plurality of threshold ranges, each threshold range corresponding to one vendor, each threshold range including two sub-threshold ranges. Taking the data in tables 1 and 2 as examples, the threshold ranges are [0.000,0.400], (0.400,0.800 ], (0.800,1.200) and (1.200,1.600 ]. The threshold ranges are used to represent the detection thresholds of the corresponding vendor, each threshold range includes a first sub-threshold range and a second sub-threshold range, for example, [0.000,0.400] corresponds to the first sub-threshold range of [0.100,0.300], corresponds to the second sub-threshold range of [0.000,0.1000 ] and (0.300,0.400 ], (0.400,0.800) corresponds to the first sub-threshold range of [0.600,0.800], corresponds to the second sub-threshold range of (0.400,0.600), (0.800,1.200) corresponds to the first sub-threshold range of [1.000,1.200], corresponds to the second sub-threshold range of (0.800,1.000), and (1.200,1.600) corresponds to the first sub-threshold range of [1.400,1.600] and corresponds to the second sub-threshold range of (1.200,1.400).

Referring to fig. 4, a schematic diagram is provided in an embodiment of the present application.

Fig. 4 illustrates a threshold range case corresponding to the sequence number 4 data.

Each threshold range is determined by the upper and lower thresholds in table 2, each first sub-threshold range is determined by the upper and lower thresholds in table 1, and each second sub-threshold range is a complement of the first sub-threshold range of each threshold range.

And when the detection result is in a first threshold range of the multiple threshold ranges, the processor determines that the display screen flexible circuit board is successfully identified, namely the detection result can be matched with the data of the manufacturer. And when the detection result is not in any one of the threshold ranges, determining that the display screen flexible circuit board fails to be identified, and at the moment, no longer performing the display screen panel fracture detection. The processor determines that the display screen panel is broken when the detection result is in a first sub-threshold range of the first threshold range. And when the detection result is in a second sub-threshold range of the first threshold range, determining that the display screen panel is not broken.

In another possible implementation, the threshold range data includes a plurality of threshold ranges, each threshold range corresponding to a vendor, each threshold range including a sub-threshold range. Taking the data in tables 1 and 2 as examples, the threshold ranges are [0.000,0.400], (0.400,0.800 ], (0.800,1.200), and (1.200,1.600) the threshold ranges are used to represent the detection thresholds of the corresponding vendor.

Each threshold range is determined by the upper and lower thresholds in table 2, and each first sub-threshold range is determined by the upper and lower thresholds in table 1.

And when the detection result is in a first threshold range of the multiple threshold ranges, the processor determines that the display screen flexible circuit board is successfully identified, namely the detection result can be matched with the data of the manufacturer. And when the detection result is not in any one of the multiple threshold ranges, determining that the display screen flexible circuit board fails to be identified, and at the moment, no longer performing display screen panel fracture detection. The processor determines that the display screen panel is broken when the detection result is in a first sub-threshold range of the first threshold range. And when the detection result is not in the first sub-threshold range of the first threshold range, determining that the display screen panel is not broken.

In the implementation mode, only the threshold ranges and the first sub-threshold ranges are required to be stored, and the occupied data storage space is small.

In yet another possible implementation, the threshold range data includes a plurality of threshold ranges, each threshold range corresponding to a vendor, each threshold range including a sub-threshold range. Taking the data in tables 1 and 2 as examples, the threshold ranges are [0.000,0.400], (0.400,0.800 ], (0.800,1.200) and (1.200,1.600 ]. The threshold ranges are used to represent the detection thresholds of the corresponding vendors.

Wherein, each threshold range is determined by the upper threshold and the lower threshold in table 2, and each first sub-threshold range is the complement of the range formed by the upper threshold and the lower threshold in table 1 in the corresponding threshold range pair.

And when the detection result is in a first threshold range of the multiple threshold ranges, the processor determines that the display screen flexible circuit board is successfully identified, namely the detection result can be matched with the data of the manufacturer. And when the detection result is not in any one of the multiple threshold ranges, determining that the display screen flexible circuit board fails to be identified, and at the moment, no longer performing display screen panel fracture detection. And when the detection result is in a first sub-threshold range of the first threshold range, the processor determines that the display screen panel is not broken. And when the detection result is not in the first sub-threshold range of the first threshold range, determining that the display screen panel breaks.

In yet another possible implementation, the threshold range data includes multiple sets of sub-threshold ranges, each set of sub-threshold ranges including a first sub-threshold range and a second sub-threshold range. Each group of sub-threshold ranges corresponds to one manufacturer. Take the data in tables 1 and 2 as examples. For example: the first sub-threshold range of the first set of sub-threshold ranges is [0.100,0.300], the second sub-threshold range is [0.000,0.1000) and (0.300,0.400 ]; a first sub-threshold range of the second set of sub-threshold ranges [0.600,0.800], the second sub-threshold range being (0.400,0.600); the first sub-threshold range of the third set of sub-threshold ranges is [1.000,1.200], and the second sub-threshold range is (0.800,1.000); the first sub-threshold range of the fourth set of sub-threshold ranges is [1.400,1.600], and the second sub-threshold range is (1.200,1.400).

In the implementation mode, only the sub-threshold ranges of each group are required to be stored, and the occupied data storage space is small.

Wherein, each first sub-threshold range is determined by the upper threshold and the lower threshold in table 1, and each second sub-threshold range is the complement of the threshold range formed by the upper threshold and the lower threshold corresponding to the first sub-threshold range in table 2.

And when the detection result is in a first sub-threshold range of the plurality of sub-threshold ranges, the processor determines that the display screen flexible circuit board is successfully identified, and the display screen panel is broken. And when the detection result is in a second sub-threshold range in the multiple sub-threshold ranges, the processor determines that the display screen flexible circuit board is successfully identified and the display screen panel is not broken. And when the detection result is not in the range of the sub-thresholds, the processor determines that the display screen flexible circuit board fails to be identified.

In practical applications, the electronic device for detecting the display screen may be a user version device or a test version device. The user version equipment is equipment used by a user, and the test version equipment is equipment used by a manufacturer for development and test.

When the electronic equipment is user version equipment, the processor can record fault information in a system log of the electronic equipment if the display screen panel is determined to be broken when the electronic equipment is started or when a user actively detects hardware functions, and can provide support for later maintenance of the electronic equipment. And the processor can send the fault information to the equipment monitoring server through the network to realize equipment monitoring detection (device monitor detect, DMD), and the equipment monitoring server can be operated by manufacturers of the electronic equipment so that the manufacturers can acquire the fault information of products, and then targeted improvement and research and development are carried out.

When the electronic equipment is a test version equipment, after the processor determines that the display screen panel breaks, fault information can be reported to realize equipment monitoring detection, so that a manufacturer can acquire the fault information of a product, and further, targeted improvement and research and development are carried out.

In summary, according to the electronic device and the detection circuit applied to the electronic device provided in the embodiments of the present application, the voltage dividing circuit is formed by using the first resistor, the second resistor and the third resistor, the second terminal voltage of the first resistor is used as the detection result of the voltage, whether the flexible circuit board of the display screen is successfully identified is determined according to the detection result, and whether the display screen panel is broken is determined. Specifically, when the display screen of the electronic device is normal, the third resistor is detected to be in short circuit, and only R1 and R2 are used for being connected into the circuit, and the voltage at the input end of the analog-to-digital converter is the voltage division of the second resistor. When the display screen panel of the electronic equipment breaks, the detection wiring is disconnected, at the moment, the first resistor, the second resistor and the third resistor are connected into the circuit, the voltage at the input end of the analog-to-digital converter is the sum of the voltage division of the second resistor and the voltage division of the third resistor, so that whether the display screen panel breaks or not is judged, and corresponding voltage detection results are different. According to the scheme, the display screen flexible circuit board identification detection and the display screen panel breakage detection are realized simultaneously by using the detection circuit, so that the layout space is saved, the multiplexing of wiring is realized, the hardware cost is reduced, and the miniaturized design of the electronic equipment is facilitated.

Based on the detection circuit provided in the above embodiment, the embodiment of the application further provides a detection method, which is specifically described below with reference to the accompanying drawings.

Referring to fig. 5, a flowchart of a detection method according to an embodiment of the present application is shown.

The method is used for detecting the display screen of the electronic device, the electronic device comprises a detection circuit, and the specific description of the electronic device and the detection circuit can be referred to the description in the above embodiment, and will not be repeated here. The method comprises the following steps:

s51: and obtaining a detection result of the analog-to-digital converter.

S52: and determining whether the display screen flexible circuit board is successfully identified according to the detection result, and determining whether the display screen panel is broken.

With continued reference to fig. 3, the first resistor R1, the second resistor R2, and the third resistor R3 in the detection circuit form a voltage dividing circuit, and the second terminal voltage of the first resistor R1 is the detection result of the voltage. And determining whether the display screen flexible circuit board is successfully identified according to the detection result, and determining whether the display screen panel is broken.

When the display flexible circuit board identification detection is unsuccessful, for example, the connection between the first end of R2 and the motherboard 10 is disconnected, the second end of R1 is disconnected, the detection result of ADC11 is about the power voltage of the power V1, and further display panel breakage detection is not required because the display flexible circuit board identification is unsuccessful.

When the display screen flexible circuit board is successfully identified and detected and the display screen panel 30 is not broken, the detection wiring on the display screen panel 30 shorts the third resistor R3, only the first resistor R1 and the second resistor R2 are connected into the circuit, and the ADC11 detection result is the voltage division of the second resistor R2. When the display screen flexible circuit board is successfully identified and detected, and the display screen panel 30 breaks, the detection wiring on the display screen panel 30 correspondingly breaks, the third resistor R3 is not shorted any more, at this time, the first resistor R1, the second resistor R2 and the third resistor R2 are all connected into a circuit, and the ADC11 detection result is the sum of the partial pressures of the second resistor R2 and the third resistor R3. It is thus possible to determine whether or not the display panel 30 is broken based on the ADC11 detection result.

According to the method provided by the embodiment of the application, the identification detection of the flexible circuit board of the display screen and the fracture detection of the panel of the display screen are realized simultaneously based on the detection circuit, so that the layout space is saved, the multiplexing of wiring is realized, the hardware cost is reduced, and the miniaturized design of the electronic equipment is facilitated. And the detection steps are simple, a plurality of data do not need to be acquired, and the practicability is high.

Various specific implementations of the detection method are described below.

In one possible implementation, referring to fig. 6, a flowchart of another detection method provided in an embodiment of the present application is shown.

The method comprises the following steps:

s61: the electronic device is started.

S62: and reading the DTS of the electronic equipment, and acquiring threshold range data detected by the display screen.

The DTS may have stored therein threshold range data for display screen detection by different display screen manufacturers.

The threshold range data comprises a plurality of threshold ranges, each threshold range corresponds to one manufacturer, and each threshold range comprises two sub-threshold ranges. Taking the data in tables 1 and 2 as examples, the threshold ranges are [0.000,0.400], (0.400,0.800 ], (0.800,1.200) and (1.200,1.600 ]. The threshold ranges are used to represent the detection thresholds of the corresponding vendor, each threshold range includes a first sub-threshold range and a second sub-threshold range, for example, [0.000,0.400] corresponds to the first sub-threshold range of [0.100,0.300], corresponds to the second sub-threshold range of [0.000,0.1000 ] and (0.300,0.400 ], (0.400,0.800) corresponds to the first sub-threshold range of [0.600,0.800], corresponds to the second sub-threshold range of (0.400,0.600), (0.800,1.200) corresponds to the first sub-threshold range of [1.000,1.200], corresponds to the second sub-threshold range of (0.800,1.000), and (1.200,1.600) corresponds to the first sub-threshold range of [1.400,1.600] and corresponds to the second sub-threshold range of (1.200,1.400).

S63: and reading the detection result of the analog-to-digital converter.

S64: it is determined whether the detection result is in a plurality of threshold ranges.

And when the detection result is in a first threshold range of the multiple threshold ranges, the processor determines that the display screen flexible circuit board is successfully identified, namely the detection result can be matched with the data of the manufacturer, and S66 is executed. And when the detection result is not in any one of the threshold ranges, determining that the display screen flexible circuit board fails to be identified, and at this time, performing the display screen panel breakage detection, and executing S65.

S65: and determining that the display screen flexible circuit board of the electronic device fails to identify.

S66: and determining that the display screen flexible circuit board of the electronic equipment is successfully identified.

S67: and determining whether the detection result is in the first sub-threshold range or the second sub-threshold range.

When the detection result is in the first sub-threshold range, determining that the display screen panel is broken, and executing S69; and when the detection result is in the second sub-threshold range, determining that the display screen panel is not broken, and executing S68.

S68: and determining that the display screen of the electronic equipment is normal.

S69: and determining that the display screen panel breaks, and reporting fault information.

When the electronic equipment is user version equipment, the processor can record fault information in a system log of the electronic equipment when the fault information is reported, and support can be provided for later maintenance of the electronic equipment. And the processor can send the fault information to the equipment monitoring server through the network to realize equipment monitoring detection (device monitor detect, DMD), and the equipment monitoring server can be operated by manufacturers of the electronic equipment so that the manufacturers can acquire the fault information of products, and then targeted improvement and research and development are carried out.

When the electronic equipment is the test version equipment, the fault information can be reported to realize equipment monitoring detection, so that manufacturers can acquire the fault information of products, and further, the targeted improvement and research and development are carried out.

In another possible implementation manner, referring to fig. 7, a flowchart of still another detection method is provided in an embodiment of the present application.

The method comprises the following steps:

s71: the electronic device is started.

S72: and reading the DTS of the electronic equipment, and acquiring threshold range data detected by the display screen.

The threshold range data includes a plurality of threshold ranges, each threshold range corresponds to a manufacturer, and each threshold range includes a sub-threshold range. Taking the data in tables 1 and 2 as examples, the threshold ranges are [0.000,0.400], (0.400,0.800 ], (0.800,1.200), and (1.200,1.600) the threshold ranges are used to represent the detection thresholds of the corresponding vendor.

S73: and reading the detection result of the analog-to-digital converter.

S74: it is determined whether the detection result is in a plurality of threshold ranges.

And when the detection result is in a first threshold range of the multiple threshold ranges, the processor determines that the display screen flexible circuit board is successfully identified, namely the detection result can be matched with the data of the manufacturer, and S76 is executed. And when the detection result is not in any one of the threshold ranges, determining that the display flexible circuit board fails to be identified, and at the moment, performing the display panel breakage detection no longer, and executing S75.

S75: and determining that the display screen flexible circuit board of the electronic device fails to identify.

S76: and determining that the display screen flexible circuit board of the electronic equipment is successfully identified.

S77: and determining whether the detection result is in a first sub-threshold range of the first threshold range.

When the detection result is in the first sub-threshold range of the first threshold range, determining that the display screen panel is broken, and executing S79; and when the detection result is not in the first sub-threshold range of the first threshold range, determining that the display screen panel is not broken, and executing S78.

S78: and determining that the display screen of the electronic equipment is normal.

S79: and determining that the display screen panel breaks, and reporting fault information.

In yet another possible implementation manner, reference is made to fig. 8, which is a flowchart of yet another detection method provided in an embodiment of the present application.

The method comprises the following steps:

s81: the electronic device is started.

S82: and reading the DTS of the electronic equipment, and acquiring threshold range data detected by the display screen.

The threshold range data includes a plurality of threshold ranges, each threshold range corresponds to a manufacturer, and each threshold range includes a sub-threshold range. Taking the data in tables 1 and 2 as examples, the threshold ranges are [0.000,0.400], (0.400,0.800 ], (0.800,1.200) and (1.200,1.600 ]. The threshold ranges are used to represent the detection thresholds of the corresponding vendors.

S83: and reading the detection result of the analog-to-digital converter.

S84: it is determined whether the detection result is in a plurality of threshold ranges.

And when the detection result is in a first threshold range of the multiple threshold ranges, the processor determines that the display screen flexible circuit board is successfully identified, namely the detection result can be matched with the data of the manufacturer, and S86 is executed. And when the detection result is not in any one of the threshold ranges, determining that the display screen flexible circuit board fails to be identified, and at the moment, performing the display screen panel breakage detection no longer, and executing S85.

S85: the display screen flexible circuit board of the electronic device fails to recognize.

S86: the flexible circuit board of the display screen of the electronic equipment is successfully identified.

S87: and determining whether the detection result is in a first sub-threshold range of the first threshold range.

If yes, executing S88; if not, S89 is performed.

S88: and determining that the display screen of the electronic equipment is normal.

S89: and determining that the display screen panel breaks, and reporting fault information.

In yet another possible implementation manner, reference is made to fig. 9, which is a flowchart of another detection method provided in an embodiment of the present application.

The method comprises the following steps:

s91: the electronic device is started.

S92: and reading the DTS of the electronic equipment, and acquiring threshold range data detected by the display screen.

The threshold range data includes a plurality of sets of sub-threshold ranges, each set of sub-threshold ranges including a first sub-threshold range and a second sub-threshold range. Each group of sub-threshold ranges corresponds to one manufacturer. Take the data in tables 1 and 2 as examples. For example: the first sub-threshold range of the first set of sub-threshold ranges is [0.100,0.300], the second sub-threshold range is [0.000,0.1000) and (0.300,0.400 ]; a first sub-threshold range of the second set of sub-threshold ranges [0.600,0.800], the second sub-threshold range being (0.400,0.600); the first sub-threshold range of the third set of sub-threshold ranges is [1.000,1.200], and the second sub-threshold range is (0.800,1.000); the first sub-threshold range of the fourth set of sub-threshold ranges is [1.400,1.600], and the second sub-threshold range is (1.200,1.400).

S93: and reading the detection result of the analog-to-digital converter.

S94: and comparing the detection result with a plurality of groups of sub-threshold ranges.

S95: and when the detection result is in a second sub-threshold range of the multiple sub-threshold ranges, determining that the display screen flexible circuit board is successfully identified and the display screen panel is not broken.

S96: and when the detection result is not in the range of the multiple sub-thresholds, determining that the flexible circuit board of the display screen fails to be identified.

S97: and when the detection result is in a first sub-threshold range of the multiple sub-threshold ranges, determining that the display screen flexible circuit board is successfully identified, and reporting fault information when the display screen panel is broken.

By utilizing the method provided by the application, the identification and detection of the flexible circuit board of the display screen and the fracture detection of the display screen panel are realized on the electronic equipment at the same time by utilizing one detection circuit, so that the layout space is saved, the multiplexing of wiring is realized, the hardware cost is reduced, and the miniaturized design of the electronic equipment is facilitated. And the detection steps are simple, a plurality of data do not need to be acquired, and the practicability is high.

It should be understood that in this application, "at least one" means one or more, and "a plurality" means two or more. "and/or" for describing the association relationship of the association object, the representation may have three relationships, for example, "a and/or B" may represent: only a, only B and both a and B are present, wherein a, B may be singular or plural. The character "/" generally indicates that the context-dependent object is an "or" relationship.

The above embodiments are merely for illustrating the technical solution of the present application, and not for limiting the same; although the present application has been described in detail with reference to the foregoing embodiments, it should be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit and scope of the corresponding technical solutions.

Claims

1. An electronic device, the electronic device comprising: the display comprises a main board, a display screen flexible circuit board, a display screen panel, a first resistor, a second resistor, a third resistor, an analog-to-digital converter and a processor;

the first resistor and the analog-to-digital converter are positioned on the main board, and the second resistor and the third resistor are positioned on the display screen flexible circuit board;

the first end of the first resistor is connected with a power supply on the main board, and the second end of the first resistor is connected with the analog-to-digital converter and the first end of the second resistor;

the second end of the second resistor is connected with the first end of the third resistor;

The second end of the third resistor is grounded on the display screen flexible circuit board, the first end of the third resistor is grounded on the display screen panel through a detection wire, and the detection wire is positioned on the display screen panel;

and the processor is used for determining whether the display screen flexible circuit board is successfully identified according to the detection result of the analog-to-digital converter and determining whether the display screen panel is broken.

2. The electronic device of claim 1, wherein the processor is specifically configured to read a device tree source code DTS of the electronic device, and obtain threshold range data detected by a display screen; and reading a detection result of the analog-to-digital converter, determining whether the display screen flexible circuit board is successfully identified or not according to the detection result and the threshold range data, and determining whether the display screen panel is broken or not.

3. The electronic device of claim 2, wherein the threshold range data includes a plurality of threshold ranges; the processor is specifically configured to determine that the display screen flexible circuit board is successfully identified when the detection result is in a first threshold range of the multiple threshold ranges; when the detection result is in a first sub-threshold range of the first threshold range, determining that the display screen panel is broken; when the detection result is in a second sub-threshold range of the first threshold range, determining that the display screen panel is not broken; and when the detection result is not in the multiple threshold ranges, determining that the display screen flexible circuit board fails to be identified.

4. The electronic device of claim 2, wherein the threshold range data includes a plurality of threshold ranges; the processor is specifically configured to determine that the display screen flexible circuit board is successfully identified when the detection result is in a first threshold range of the multiple threshold ranges; when the detection result is in a first sub-threshold range of the first threshold range, determining that the display screen panel is broken; when the detection result is not in the first sub-threshold range, determining that the display screen panel is not broken; and when the detection result is not in the multiple threshold ranges, determining that the display screen flexible circuit board fails to be identified.

5. The electronic device of claim 2, wherein the threshold range data includes a plurality of threshold ranges; the processor is specifically configured to determine that the display screen flexible circuit board is successfully identified when the detection result is in a first threshold range of the multiple threshold ranges; when the detection result is in a first sub-threshold range of the first threshold range, determining that the display screen panel is not broken; when the detection result is not in the first sub-threshold range, determining that the display screen panel is broken; and when the detection result is not in the multiple threshold ranges, determining that the display screen flexible circuit board fails to be identified.

6. The electronic device of claim 2, wherein the threshold range data includes a plurality of sub-threshold ranges; the processor is specifically configured to determine that the display screen flexible circuit board is successfully identified and the display screen panel is broken when the detection result is in a first sub-threshold range of the multiple sub-threshold ranges; when the detection result is in a second sub-threshold range of the multiple sub-threshold ranges, determining that the display screen flexible circuit board is successfully identified and the display screen panel is not broken; and when the detection result is not in the multiple sub-threshold ranges, determining that the display screen flexible circuit board fails to be identified.

7. The electronic device of any one of claims 1-6, wherein the processor is further configured to record fault information in a system log of the electronic device when it is determined that the display panel is broken.

8. The electronic device of any one of claims 1-6, wherein the processor is further configured to report fault information to a device monitoring server when it is determined that the display panel breaks.

9. The electronic device of claim 1, wherein the second resistance is a zero ohm resistance.

10. The electronic device of claim 1, wherein the display screen flexible circuit board is a liquid crystal display screen LCD flexible circuit board and the display screen panel is an LCD panel.

11. A detection circuit, the detection circuit comprising: the first resistor, the second resistor, the third resistor and the analog-to-digital converter;

the first resistor and the analog-to-digital converter are positioned on the main board, and the second resistor and the third resistor are positioned on the flexible circuit board of the display screen;

the second end of the third resistor is grounded on the display screen flexible circuit board, the first end of the third resistor is grounded on the display screen panel through a detection wire, and the detection wire is positioned on the display screen panel.

12. The detection circuit of claim 11, wherein the second resistance is a zero ohm resistance.

13. A detection method applied to the detection circuit of claim 11, the method comprising:

obtaining a detection result of an analog-to-digital converter;

and determining whether the display screen flexible circuit board is successfully identified or not according to the detection result, and determining whether the display screen panel is broken or not.

14. The method according to claim 13, wherein the determining whether the display flexible circuit board is successfully identified and whether the display panel is broken according to the detection result specifically comprises:

reading the detection result of the analog-to-digital converter;

15. The method according to claim 14, wherein the threshold range data includes a plurality of threshold ranges, and the determining whether the flexible circuit board of the display screen is successfully identified and whether the display screen panel is broken according to the detection result and the threshold range data specifically includes:

16. The method according to claim 14, wherein the threshold range data includes a plurality of threshold ranges, and the determining whether the flexible circuit board of the display screen is successfully identified and whether the display screen panel is broken according to the detection result and the threshold range data specifically includes:

17. The method according to claim 14, wherein the threshold range data includes a plurality of threshold ranges, and the determining whether the flexible circuit board of the display screen is successfully identified and whether the display screen panel is broken according to the detection result and the threshold range data specifically includes:

18. The method according to claim 14, wherein the threshold range data includes a plurality of sub-threshold ranges, and the determining whether the flexible circuit board of the display screen is successfully identified and whether the display screen panel is broken according to the detection result and the threshold range data specifically includes:

19. The method of any one of claims 13-18, wherein the method further comprises:

and when the display screen panel is determined to be broken, recording fault information in a system log of the electronic equipment.

20. The method of any one of claims 13-18, wherein the method further comprises:

and when the display screen panel is determined to be broken, reporting fault information to a device monitoring server.