Method and device for analyzing cause of bad display failure, electronic equipment and storage medium

Abstract

Embodiments of the present application relate to a kind of bad display failure cause analysis method, device, electronic equipment and storage medium, the method comprises: the data line of the target display panel of the bad display phenomenon, according to first scanning direction carries out signal output, and according to second scanning direction carries out signal output;In target display panel, the first bad display position of the bad display area corresponding to first scanning direction is determined, and the second bad display position of the bad display area corresponding to second scanning direction;Determine the relative position relationship between first bad display position and second bad display position;Based on the bad display judgment strategy of preposition, the cause of the bad display phenomenon corresponding to relative position relationship is determined.The embodiments of the present application realize the connection of bad display and data line scanning direction, quickly determine the cause of bad display failure, it is helpful to efficiently carry out fault handling to the panel of the bad display.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of display panels, and in particular to a method and device for analyzing causes of display failure, an electronic device, and a storage medium. BACKGROUND

[0002] In the production, experiment or use of a liquid crystal display panel, a type of display failure in the vertical direction is often encountered. This type of display failure usually includes two types of V_line and V_block. V_line visually appears as one or more vertical lines, which can be a white line (obviously displayed on a black picture or a certain specific gray picture), a black line (obviously displayed on a white picture or a certain specific gray picture), a certain specific gray line, or even a certain specific red-green-blue line. V_block visually appears as a vertical band, which can be all black, all white, or even a certain specific gray band.

[0003] For the above two types of display failure, the commonly used method for analyzing the causes of failure needs to analyze the signals on the longitudinal data lines of the panel in both software and hardware, and the efficiency of failure analysis is low. SUMMARY

[0004] In view of this, to solve some or all of the above technical problems, the embodiments of the present application provide a method and device for analyzing causes of display failure, an electronic device, and a computer readable storage medium.

[0005] In a first aspect, the embodiments of the present application provide a method for analyzing causes of display failure. The method includes: outputting signals on a data line of a target display panel in a first scanning direction and outputting signals on the data line in a second scanning direction, determining a first display failure position of a display failure area corresponding to the first scanning direction and a second display failure position of a display failure area corresponding to the second scanning direction on the target display panel, determining a relative position relationship between the first display failure position and the second display failure position, and determining a cause of the display failure based on a preset display failure judgment strategy.

[0006] In one possible implementation, determining the cause of the display failure based on the preset display failure judgment strategy includes: if the relative position relationship indicates that the first display failure position and the second display failure position are different, determining that the cause of the display failure is a software failure of the data line driver; and if the relative position relationship indicates that the first display failure position and the second display failure position are the same, determining that the cause of the display failure is a hardware failure of the data line driver.

[0007] In a possible implementation, if the relative position relationship indicates that the first abnormal display position and the second abnormal display position are the same, the method further includes: determining a type of the abnormal display phenomenon; and determining, based on the type, a cause of the data line driving hardware failure corresponding to the type.

[0008] In a possible implementation, the determining, based on the type, of the cause of the data line driving hardware failure corresponding to the type includes: if the type of the abnormal display phenomenon is the line type, determining that the cause of the abnormal display phenomenon is a hardware path failure of a signal on the data line.

[0009] In a possible implementation, the determining, based on the type, of the cause of the data line driving hardware failure corresponding to the type includes: if the type of the abnormal display phenomenon is the block type, adjusting a power supply voltage of a data line driving module of the target display panel; if the degree of the abnormal display phenomenon is reduced after the power supply voltage is adjusted, determining that the cause of the abnormal display phenomenon is a power supply failure of the data line driving module; and if the degree of the abnormal display phenomenon is not reduced after the power supply voltage is adjusted, determining that the cause of the abnormal display phenomenon is a hardware path failure of a signal on the data line.

[0010] In a possible implementation, after the power supply voltage of the data line driving module of the target display panel is adjusted, the method further includes: increasing the power supply voltage by a preset amplitude, determining a color of a block area currently causing the abnormal display phenomenon, and a color change amplitude before the power supply voltage is adjusted; and if the color change amplitude exceeds the preset amplitude, determining that the degree of the abnormal display phenomenon is reduced. In a possible implementation, the determining, based on the type, of the cause of the data line driving hardware failure corresponding to the type includes: if the type of the abnormal display phenomenon is the line type, determining that the cause of the abnormal display phenomenon is a hardware path failure of a signal on the data line.

[0011] In a possible implementation, the third determining module comprises: a first determining unit, configured to determine that the cause of the poor display phenomenon is a data line driving software fault if the relative position relationship indicates that the first poor display position and the second poor display position are different; and a second determining unit, configured to determine that the cause of the poor display phenomenon is a data line driving hardware fault if the relative position relationship indicates that the first poor display position and the second poor display position are the same.

[0012] In a possible implementation, the second determining unit comprises: a first determining sub-unit, configured to determine the type of the poor display phenomenon if the relative position relationship indicates that the first poor display position and the second poor display position are the same; and a second determining sub-unit, configured to determine, based on the type, the cause of the data line driving hardware fault corresponding to the type, which is preset.

[0013] In a third aspect, an embodiment of the present application provides an electronic device, comprising: a memory configured to store a computer program; and a processor configured to execute the computer program stored in the memory, and the computer program, when executed, implements the method of any one of the embodiments of the poor display fault cause analysis method of the first aspect.

[0014] In a fourth aspect, an embodiment of the present application provides a computer readable storage medium, which stores a computer program, and the computer program, when executed by a processor, implements the method of any one of the embodiments of the poor display fault cause analysis method of the first aspect.

[0015] In a fifth aspect, an embodiment of the present application provides a computer program, which comprises computer readable code, and when the computer readable code is run on a device, the processor in the device implements the method of any one of the embodiments of the poor display fault cause analysis method of the first aspect.

[0016] The poor display fault cause analysis method, device, electronic device and computer readable storage medium provided in the embodiments of the present application determine the relative position relationship between the first poor display position of the poor display area corresponding to the first scanning direction and the second poor display position of the poor display area corresponding to the second scanning direction on the target display panel, and finally determine the cause of the poor display phenomenon corresponding to the relative position relationship based on the poor display judgment strategy. The embodiments of the present application achieve the use of the connection between the poor display and the data line scanning direction to quickly determine the cause of the poor display fault, which is helpful for efficiently processing the fault of the panel with poor display. BRIEF DESCRIPTION OF DRAWINGS

[0017] The accompanying drawings, which are incorporated herein and constitute part of the specification, illustrate embodiments consistent with the application and, together with the description, further serve to explain the principles of the application.

[0018] In order to more clearly illustrate the technical solutions of the embodiments of the present application or the prior art, the accompanying drawings required by the embodiments or the prior art description will be briefly introduced as follows. Obviously, those skilled in the art can obtain other drawings according to these drawings without any creative effort.

[0019] One or more embodiments are illustrated by way of example in the drawings that are not intended to be limiting of the application, and which will now be described. Like reference numerals refer to like elements throughout. The drawings are not necessarily to scale, the emphasis instead being placed upon illustrating the principles of the application.

[0020] Figure 1 A flowchart of a bad display fault cause analysis method provided by an embodiment of the present application is shown in the figure;

[0021] Figure 2A A schematic diagram of a case where there is no difference between the first bad display position and the second bad display position when the bad display phenomenon is V_line is shown in the figure;

[0022] Figure 2B A schematic diagram of a case where there is a difference between the first bad display position and the second bad display position when the bad display phenomenon is V_line is shown in the figure;

[0023] Figure 3A A schematic diagram of a case where there is no difference between the first bad display position and the second bad display position when the bad display phenomenon is V_block is shown in the figure;

[0024] Figure 3B A schematic diagram of a case where there is a difference between the first bad display position and the second bad display position when the bad display phenomenon is V_block is shown in the figure;

[0025] Figure 4 A flowchart of another bad display fault cause analysis method provided by an embodiment of the present application is shown in the figure;

[0026] Figure 5 A flowchart of another bad display fault cause analysis method provided by an embodiment of the present application is shown in the figure;

[0027] Figure 6 A flowchart of another bad display fault cause analysis method provided by an embodiment of the present application is shown in the figure;

[0028] Figure 7A structure diagram of a bad display fault cause analysis device provided by an embodiment of the present application is shown in the figure.

[0029] Figure 8 A structure diagram of an electronic device provided by an embodiment of the present application is shown in the figure. DETAILED DESCRIPTION

[0030] Various exemplary embodiments of the present application will now be described in detail with reference to the accompanying drawings. Obviously, the described embodiments are only a part of embodiments of the present application, but not all of them. It should be noted that the relative arrangement of the components and steps, numerical expressions, and values set forth in these embodiments are not intended to limit the scope of the present application unless otherwise specifically stated.

[0031] Those skilled in the art can understand that the terms "first", "second", etc. in the embodiments of the present application are only used to distinguish different steps, devices or modules, and do not represent any specific technical meaning, nor indicate their logical order.

[0032] It should also be understood that in the present embodiment, "a plurality of" can mean two or more, and "at least one" can mean one, two or more.

[0033] It should also be understood that for any component, data or structure mentioned in the embodiments of the present application, it can be understood as one or more in general, without explicit limitation or in the context of the opposite indication.

[0034] In addition, the term "and / or" in the present application is only a description of the association relationship between the associated objects, which means that there can be three relationships, for example, A and / or B can mean that A exists alone, A and B exist together, and B exists alone. In addition, the character " / " in the present application generally represents an "or" relationship between the associated objects.

[0035] It should also be understood that the description of various embodiments of the present application focuses on the differences between the various embodiments, and the same or similar parts can be referred to each other, and for the sake of brevity, will not be repeated.

[0036] The following description of at least one exemplary embodiment is merely illustrative in nature and is in no way intended to limit the application or its application or uses.

[0037] Techniques, circuits, and devices known to those of ordinary skill in the relevant art can not be discussed in detail, but should be considered as part of the specification where appropriate.

[0038] It should be noted that similar reference numbers and letters represent similar items in the following drawings, so once an item is defined in one drawing, it does not need to be further discussed in subsequent drawings.

[0039] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. To facilitate understanding of the embodiments of this application, the application will be described in detail below with reference to the accompanying drawings and embodiments. Obviously, the described embodiments are only some, not all, of the embodiments of this application. All other embodiments obtained by those skilled in the art based on the embodiments of this application without creative effort are within the scope of protection of this application.

[0040] To address the problem of low efficiency in determining the cause of display failures in existing technologies, this application provides a method for analyzing the causes of display failures. This method can quickly determine the cause of display failures by analyzing the locations of poor display results generated in different scanning directions.

[0041] Figure 1 This is a flowchart illustrating a method for analyzing the causes of display malfunctions provided in an embodiment of this application. This method can be applied to a display panel and executed by a control chip (e.g., a System-on-a-Chip) on the display panel, or by one or more electronic devices such as desktop computers, laptops, smartphones, and portable computers that can control the display panel. Furthermore, the executing entity of this method can be hardware or software. When the executing entity is hardware, it can be one or more of the aforementioned electronic devices. For example, a single electronic device can execute this method, or multiple electronic devices can cooperate with each other to execute this method. When the executing entity is software, this method can be implemented as multiple software programs or software modules, or as a single software program or software module. No specific limitations are made here.

[0042] like Figure 1 As shown, the method specifically includes:

[0043] Step 101: Output signals to the data lines of the target display panel where the display defect occurs, in the first scanning direction and in the second scanning direction.

[0044] In some embodiments, the poor display phenomenon occurring on the target display panel can be a fault phenomenon related to the extension direction of the data line (referred to as the source direction in this embodiment), typically including two types of poor display phenomena: V_line and V_block. Figure 2A and Figure 2BAs shown, V_line visually appears as one or more straight lines perpendicular to the panel, which can be white lines or black lines, or gray lines of a certain gray level, or even red-green-blue lines of a certain gray level. The line can be a straight line composed of one or more columns of pixels containing RGB three-color sub-pixels, or a straight line composed of a certain sub-pixel in RGB, which is related to the architecture of the panel.

[0045] As shown in Figure 3A and Figure 3B , V_block visually appears as a vertical band, which can be all black, or all white, or even a gray band of a certain gray level. V_block defects often have certain area rules, i.e., 1 / 12, 1 / 6, 1 / 4, 1 / 3, 5 / 12, 1 / 2, 7 / 12, 2 / 3, 3 / 4, 5 / 6, 11 / 12, or even 12 / 12 (black screen or white screen or gray screen) of the entire screen. The area regularity of V_block is mainly determined by its hardware architecture. For example, for a panel with a resolution of 3840x2160 and a 1G1D architecture, there are 3840*3=11520 data lines in the panel. If the most common 960-channel COF (Chip On Film, Chip On Film) is used, a total of 11520 / 960=12 COFs are required, i.e., COF1-COF12 as shown in Figure 2A 、 Figure 2B 、 Figure 3A 、 Figure 3B . That is, each COF manages the display of 1 / 12 of the area, and if all 960 channels of a COF output abnormally, 1 / 12 of the area will be displayed abnormally, i.e., 1 / 12 V_block. For a dual gate panel, i.e., by increasing the number of row scan lines by one, the number of data lines is reduced to half, and still using the case where each COF has 960 channels, 6 COFs are required, i.e., each COF manages the display of 2 / 12 of the area, and if the 960 channels of a COF output abnormally, at least 1 / 6 of the area will be displayed abnormally.

[0046] The first scanning direction and the second scanning direction are opposite directions. When scanning, the electronic device executing the method can control the data line driving module on the target display panel to output signals for driving the sub-pixels to display to each data line in turn according to the set scanning direction. As shown in Figure 2A 、 Figure 2B 、 Figure 3A 、 Figure 3BAs shown, 12 COFs of the target display panel are arranged laterally at the bottom of the panel, and the first scanning direction can be the direction of COF1 to COF12 (i.e. Source output positive scan), and the second scanning direction can be the direction of COF12 to COF1 (i.e. Source output negative scan).

[0047] In step 102, the first bad display position of the bad display area corresponding to the first scanning direction and the second bad display position of the bad display area corresponding to the second scanning direction are determined on the target display panel.

[0048] In some embodiments, the first bad display position and the second bad display position can be recorded in various ways. For example, a picture of the screen display can be captured, and the first bad display position and the second bad display position can be determined by identifying the color of each pixel on the picture. For another example, a camera can be used to take a picture of the screen, and the first bad display position and the second bad display position can be determined by identifying the picture. In addition, the first bad display position and the second bad display position can also be determined by manual observation.

[0049] As shown in Figure 2A , Figure 2B , Figure 3A , Figure 3B The lateral coordinate of V_line or V_block on the panel can be recorded as the first bad display position or the second bad display position.

[0050] In step 103, the relative positional relationship between the first bad display position and the second bad display position is determined.

[0051] In some embodiments, the electronic device can automatically determine the relative positional relationship between the first bad display position and the second bad display position. Alternatively, the relative positional relationship between the first bad display position and the second bad display position can also be determined manually. For example, the relative positional relationship between the first bad display position and the second bad display position can be determined by comparing the coordinates of the first bad display position and the second bad display position recorded in step 102.

[0052] Optionally, when the relative positional relationship between the first bad display position and the second bad display position is automatically determined, an error threshold can be set. If the difference between the two positions is within the error threshold, it is determined that there is no difference between the two positions, otherwise it is determined that there is a difference between the two positions.

[0053] As shown in Figure 2AAs shown in FIG. 6, it shows the first bad display position and the second bad display position corresponding to the first scanning direction and the second scanning direction respectively when the bad display phenomenon is V_line. The first bad display position and the second bad display position in the figure have no difference. As shown in FIG. 7, the first bad display position and the second bad display position in the figure have difference. Figure 2B As shown in FIG. 6, it shows the first bad display position and the second bad display position corresponding to the first scanning direction and the second scanning direction respectively when the bad display phenomenon is V_line. The first bad display position and the second bad display position in the figure have no difference. As shown in FIG. 7, the first bad display position and the second bad display position in the figure have difference.

[0054] As shown in FIG. 6, it shows the first bad display position and the second bad display position corresponding to the first scanning direction and the second scanning direction respectively when the bad display phenomenon is V_line. The first bad display position and the second bad display position in the figure have no difference. As shown in FIG. 7, the first bad display position and the second bad display position in the figure have difference. Figure 3A As shown in FIG. 6, it shows the first bad display position and the second bad display position corresponding to the first scanning direction and the second scanning direction respectively when the bad display phenomenon is V_line. The first bad display position and the second bad display position in the figure have no difference. As shown in FIG. 7, the first bad display position and the second bad display position in the figure have difference. Figure 3B

[0055] In step 104, the cause of the bad display phenomenon corresponding to the relative position relationship is determined based on the preset bad display judgment strategy.

[0056] In some embodiments, the bad display judgment strategy can be preset, which is used to determine the corresponding relationship between the relative position relationship of the first bad display position and the second bad display position and the cause of the bad display phenomenon. For example, when the first bad display position and the second bad display position have difference, it can be judged that the bad display phenomenon is caused by the data line driving program of the SOC on the target display panel. When the first bad display position and the second bad display position have no difference, it can be judged that the bad display phenomenon is related to hardware, and the line material, voltage source and other hardware transmitting data on the panel need to be checked.

[0057] Optionally, after determining the cause of the bad display phenomenon, the electronic device executing the method can output the fault cause in various ways. For example, the fault cause (such as "SOC driving fault" or "COF hardware fault") can be displayed on the screen of the electronic device, so that the user can quickly locate the fault cause.

[0058] The bad display fault cause analysis method provided by the embodiments of the present application determines the first bad display position corresponding to the first scanning direction and the second bad display position corresponding to the second scanning direction on the target display panel, and then determines the relative position relationship between the first bad display position and the second bad display position. Finally, the cause of the bad display phenomenon corresponding to the relative position relationship is determined based on the bad display judgment strategy. The embodiments of the present application realize the use of the connection between the bad display and the data line scanning direction to quickly determine the cause of the bad display fault, which is helpful for efficiently handling the fault of the panel with bad display. ​

[0059] In some optional implementations, as shown in Figure 4 Step 104 includes:

[0060] Step 1041, if the relative position relationship indicates that the first bad display position and the second bad display position are different, it is determined that the cause of the bad display phenomenon is a data line driving software fault.

[0061] The data line driving software is usually set in the SOC on the target display panel. When the first bad display position and the second bad display position are different, it indicates that the cause of the bad display is not related to the signal transmission path, but is related to the driving software (i.e., source driving). At this time, prompt information indicating the data line driving software fault can be output.

[0062] As shown in Figure 2B and Figure 3B The first bad display position and the second bad display position are different and symmetrically distributed, and at this time, it is determined that the fault cause is a data line driving software fault.

[0063] Step 1042, if the relative position relationship indicates that the first bad display position and the second bad display position are the same, it is determined that the cause of the bad display phenomenon is a data line driving hardware fault.

[0064] The data line driving hardware fault can be a hardware fault related to the signal on the data line. For example, the data line driving hardware fault can include a wire fault, which can include a short circuit of a certain data transmission path contained in the gold finger on the FFC to the ground, which will cause the corresponding COF output to work abnormally, and further cause the signal output by the data line to be abnormal.

[0065] The embodiment determines whether the first bad display position and the second bad display position are the same, and in the two cases of being the same or different, it can be determined that the fault comes from the data line driving software or the data line driving hardware, thereby further improving the accuracy of the bad display fault determination.

[0066] In some optional implementations, as shown in Figure 5 Step 1042 includes:

[0067] Step 10421, if the relative position relationship indicates that the first bad display position and the second bad display position are the same, the type of the bad display phenomenon is determined.

[0068] The type of the bad display phenomenon can be determined by the shape of the bad display area. Usually, the type of the bad display phenomenon can include a line type (V-line) and a block type (V-block).

[0069] At step 10422, a cause of the pre-set data line driving hardware fault corresponding to the type is determined based on the type.

[0070] Different types of the bad display phenomenon can correspond to different causes of the data line driving hardware fault, and the corresponding relationship can be pre-set. For example, a corresponding relationship table can be set, and according to the type of the current bad display phenomenon, a corresponding cause of the data line driving hardware fault can be found from the corresponding relationship table.

[0071] In the embodiment, by pre-setting the type of the bad display phenomenon and the cause of the data line driving hardware fault, when it is determined that the bad display is irrelevant to the data line driving software, the corresponding cause of the hardware fault can be quickly determined according to the type of the bad display phenomenon, and the accuracy and efficiency of the bad display cause determination are further improved.

[0072] In some optional implementation manners, as shown in Figure 6 Step 10422 includes:

[0073] At step 104221, if the type of the bad display phenomenon is the line type, it is determined that the cause of the bad display phenomenon is the hardware path fault of the signal on the transmission data line.

[0074] Specifically, in the case of determining the data line driving hardware fault, the V_line phenomenon is related to the hardware path fault of the data line signal. For example, the hardware path fault is related to the COF or the bonding process. If it is related to the COF, it can be further determined whether it is caused by the data line driving module fault or the COF film short circuit. If it is related to the bonding, it can be further determined whether it is caused by the bonding defect, the bonding foreign matter or the insufficient bonding particles.

[0075] In the embodiment, when the bad display phenomenon is the line type, the cause of the bad display phenomenon is directly determined as the hardware path fault of the signal on the transmission data line, so that the fault cause can be quickly located according to the type of the bad display.

[0076] In some optional implementation manners, as shown in Figure 6 Step 10422 includes:

[0077] At step 104222, if the type of the bad display phenomenon is the block type, the power supply voltage of the data line driving module of the target display panel is adjusted.

[0078] Among them, for the V_block type of bad display position does not change with the first scanning direction and the second scanning direction, there are many reasons that may cause the bad. For example, the power supply of the data line driving module (including the power supply of COF) is abnormal, which is common AVDD (Analog Voltage Driver), HAVDD (High-Voltage Analog Voltage Driver), DVDD1V8 (1.8V Digital Core Supply Voltage), DVDD1V9 (1.9V Digital Core Supply Voltage) and the like, especially DVDD1V8 often exceeds the lower limit, which will cause the source driver IC on the COF to be unable to supply power normally, and work abnormally, thereby affecting the output of the data line.

[0079] Optionally, after step 104222, it can be determined whether the degree of the bad display phenomenon is reduced according to the following steps:

[0080] The power supply voltage is increased by a preset amplitude, and the color of the block area currently causing the bad display phenomenon is determined, and the color change amplitude before adjusting the power supply voltage; if the color change amplitude exceeds the preset amplitude, it is determined that the degree of the bad display phenomenon is reduced.

[0081] As an example, the current display of the target display panel can be intercepted, and the picture is identified to determine the change amount of the average pixel value of the current V_block area and the average pixel value before adjusting the voltage as the color change amplitude, if the color change amplitude exceeds the preset amplitude, it means that the adjustment of the voltage has an impact on the improvement of the bad display phenomenon, at this time, it can be determined that the degree of the bad display phenomenon is reduced. By judging the color change of the block area of the bad display phenomenon to determine whether the degree of the bad display phenomenon is reduced, the influence of the power supply voltage on the bad display phenomenon can be accurately judged, and the fault judgment efficiency is improved.

[0082] Step 104223, if the degree of the bad display phenomenon is reduced after adjusting the power supply voltage, it is determined that the cause of the bad display phenomenon is the power supply failure of the data line driving module.

[0083] Specifically, the above-mentioned AVDD, HAVDD, DVDD1V8, DVDD1V9 and the like can be appropriately increased, and if the bad display is improved, it can be proved that the V_block is related to the power supply voltage of the data line driving module (source driver). The operation of increasing the voltage can be performed manually, or the power module of the target display panel can be controlled by an electronic device.

[0084] In step 104224, if the degree of the abnormal display phenomenon is not reduced after adjusting the supply voltage, it is determined that the cause of the abnormal display phenomenon is a hardware path barrier of the signal on the transmission data line.

[0085] Specifically, if V_block is irrelevant to the supply voltage of the data line driving module, it can be determined that V_block is caused by a wire fault. For example, a certain path in FFC or a gold finger on FFC is shorted to ground, which will cause the corresponding COF output to work abnormally, there is some foreign matter on the connector on the TCON-less board or S-PCB board, etc., causing a certain path data to be shorted to ground, which will also cause the V_block display abnormality. Damage to COF or Source driver is also a common cause of V_block display failure. The above various fault reasons can be hardware path faults.

[0086] The embodiment realizes that when the abnormal display phenomenon is of a block type, the cause of the abnormal display phenomenon is further judged by adjusting the supply voltage to be a power supply fault or a hardware path fault, thereby helping to quickly locate the fault cause according to the type of the abnormal display.

[0087] Figure 7 A structure diagram of an abnormal display fault cause analysis device provided by the embodiment of the application is shown. Specifically, it includes:

[0088] The scanning module 701 is configured to perform signal output on the data line of the target display panel in which the abnormal display phenomenon occurs, in a first scanning direction and in a second scanning direction.

[0089] The first determination module 702 is configured to determine, on the target display panel, a first abnormal display position of an abnormal display area corresponding to the first scanning direction and a second abnormal display position of an abnormal display area corresponding to the second scanning direction.

[0090] The second determination module 703 is configured to determine a relative positional relationship between the first abnormal display position and the second abnormal display position.

[0091] The third determination module 704 is configured to determine, based on a preset abnormal display judgment strategy, a cause of the abnormal display phenomenon corresponding to the relative positional relationship.

[0092] In some optional implementation manners, the third determination module includes: a first determination unit configured to determine, if the relative positional relationship indicates that the first abnormal display position and the second abnormal display position are different, that the cause of the abnormal display phenomenon is a data line driving software fault; and a second determination unit configured to determine, if the relative positional relationship indicates that the first abnormal display position and the second abnormal display position are the same, that the cause of the abnormal display phenomenon is a data line driving hardware fault.

[0093] In some optional implementation manners, the second determining unit comprises: a first determining sub-unit, configured to determine the type of the display failure phenomenon if the relative position relationship indicates that the first poor display position and the second poor display position are the same; and a second determining sub-unit, configured to determine the cause of the data line driving hardware failure corresponding to the type according to the type.

[0094] In some optional implementation manners, the second determining sub-unit is further configured to determine that the cause of the display failure phenomenon is a hardware path failure of the signal on the transmission data line if the type of the display failure phenomenon is the line type.

[0095] In some optional implementation manners, the second determining sub-unit is further configured to adjust the power supply voltage of the data line driving module of the target display panel if the type of the display failure phenomenon is the block type; determine that the cause of the display failure phenomenon is a power supply failure of the data line driving module if the degree of the display failure phenomenon is reduced after the power supply voltage is adjusted; and determine that the cause of the display failure phenomenon is a hardware path failure of the signal on the transmission data line if the degree of the display failure phenomenon is not reduced after the power supply voltage is adjusted.

[0096] In some optional implementation manners, the second determining sub-unit is further configured to increase the power supply voltage by a preset amplitude, determine the color of the block area currently generating the display failure phenomenon, and the color change amplitude before the power supply voltage is adjusted; and determine that the degree of the display failure phenomenon is reduced if the color change amplitude exceeds the preset amplitude.

[0097] The display failure cause analysis apparatus provided in the embodiment can be the display failure cause analysis apparatus shown in the Figure 7 , can execute all steps of the above display failure cause analysis methods, and thus realizes the technical effects of the above display failure cause analysis methods. For brevity, the above description is not repeated here.

[0098] Figure 8 A structure schematic diagram of an electronic device provided in the embodiment, Figure 8 The electronic device 800 shown in the structure schematic diagram comprises at least one processor 801, a memory 802, at least one network interface 804 and other user interfaces 803. The various components in the electronic device 800 are coupled together through a bus system 805. It can be understood that the bus system 805 is used to realize the connection communication between the components. The bus system 805 includes not only a data bus, but also a power supply bus, a control bus and a status signal bus. However, for the sake of clear illustration, all kinds of buses are marked as the bus system 805 in the Figure 8 .

[0099] The user interface 803 can include a display, a keyboard, or a pointing device (e.g., a mouse, a trackball, a touchpad, or a touchscreen).

[0100] It can be understood that the memory 802 in the embodiments of the present application can be a volatile memory or a non-volatile memory, or can include both volatile and non-volatile memories. The non-volatile memory can be a Read-Only Memory (ROM), a Programmable ROM (PROM), an Erasable PROM (EPROM), an Electrically EPROM (EEPROM), or a flash memory. The volatile memory can be a Random Access Memory (RAM) used as an external cache. By way of example, and not limitation, many forms of RAM are available, such as Static RAM (SRAM), Dynamic RAM (DRAM), Synchronous DRAM (SDRAM), Double Data Rate SDRAM (DDR SDRAM), Enhanced SDRAM (ESDRAM), Synchlink DRAM (SLDRAM), and Direct Rambus RAM (DRRAM). The memory 802 described herein is intended to include, without being limited to, these and any other suitable types of memory.

[0101] In some embodiments, the memory 802 stores the following elements, executable units or data structures, or a subset of them, or an extended set of them: an operating system 8021 and application programs 8022.

[0102] The operating system 8021 includes various system programs, such as a framework layer, a core library layer, a driver layer, etc., for implementing various basic services and processing hardware-based tasks. The application programs 8022 include various application programs, such as a Media Player, a Browser, etc., for implementing various application services. The programs for implementing the methods of the embodiments of the present application can be included in the application programs 8022.

[0103] In this embodiment, the processor 801 is configured to execute the method steps provided by various method embodiments by invoking the program or instruction stored in the memory 802, specifically, the program or instruction stored in the application program 8022. For example, the processor 801 is configured to execute the method steps including:

[0104] The data line of the target display panel having the adverse display phenomenon is output with signals in the first scanning direction and in the second scanning direction. The first adverse display position of the adverse display area corresponding to the first scanning direction and the second adverse display position of the adverse display area corresponding to the second scanning direction are determined on the target display panel. The relative positional relationship between the first adverse display position and the second adverse display position is determined. The cause of the adverse display phenomenon corresponding to the relative positional relationship is determined based on a preset adverse display judgment strategy.

[0105] The method disclosed in the embodiments of the present application can be applied to the processor 801 or implemented by the processor 801. The processor 801 can be an integrated circuit chip having a signal processing capability. In the implementation process, the steps of the above method can be completed by the integrated logic circuits or the instruction of software form in the processor 801. The processor 801 mentioned above can be a general processor, a digital signal processor (DSP), an application specific integrated circuit (ASIC), a field programmable gate array (FPGA) or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components. The disclosed methods, steps and logic block diagrams in the embodiments of the present application can be implemented or executed. The general processor can be a microprocessor or the processor can also be any conventional processor. The steps of the method disclosed in conjunction with the embodiments of the present application can be directly embodied as a hardware code processor for execution, or a combination of hardware and software units in the code processor for execution. The software unit can be located in a random access memory, a flash memory, a read only memory, a programmable read only memory or an electrically erasable programmable memory, a register or other mature storage medium in the art. The storage medium is located in the memory 802, and the processor 801 reads the information in the memory 802 and completes the steps of the above method in combination with the hardware.

[0106] It can be understood that the embodiments described herein can be implemented in hardware, software, firmware, middleware, microcode, or a combination thereof. For hardware implementation, the processing units can be implemented within one or more application specific integrated circuits (ASICs), digital signal processors (DSPs), digital signal processing devices (DSP Devices, DSPDs), programmable logic devices (PLDs), field programmable gate arrays (FPGAs), general purpose processors, controllers, micro-controllers, microprocessors, other electronic units designed to perform the functions described above, or a combination thereof.

[0107] For software implementation, the techniques described herein can be implemented with a processing unit that executes program components or modules. The software code can be stored in memory and executed by a processor. Memory can be implemented within the processor or external to the processor.

[0108] The electronic device provided by the embodiments can be an electronic device as shown in Figure 8 The electronic device provided by the embodiments can be an electronic device as shown in

[0109] The embodiments of the present application further provide a storage medium (computer readable storage medium). The storage medium stores one or more programs. The storage medium can include a volatile memory, such as a random access memory, and / or can include a non-volatile memory, such as a read-only memory, a flash memory, a hard disk drive, or a solid-state drive. The storage medium can also include a combination of the above-mentioned types of memories.

[0110] The one or more programs stored in the storage medium can be executed by the one or more processors to implement the above-mentioned display failure cause analysis method performed on the electronic device side.

[0111] The above-mentioned processor is configured to execute the program stored in the memory to implement the following steps of the display failure cause analysis method performed on the electronic device side.

[0112] The data line of the target display panel with the adverse display phenomenon is outputted with signals in a first scanning direction and a second scanning direction; a first adverse display position of an adverse display area corresponding to the first scanning direction and a second adverse display position of an adverse display area corresponding to the second scanning direction are determined on the target display panel; a relative position relationship between the first adverse display position and the second adverse display position is determined; and a cause of the adverse display phenomenon corresponding to the relative position relationship is determined based on a preset adverse display judgment strategy.

[0113] Those skilled in the art will further appreciate that the units and algorithm steps of each example described in connection with the embodiments disclosed herein can be implemented in electronic hardware, computer software, or combinations of both. To clearly illustrate the interchangeability of hardware and software, various aspects of each example have been described herein in terms of their functionality, which is described generally in terms of their steps. Whether such functionality is implemented in hardware or software depends on the particular application and design constraints imposed on the overall system. Skilled persons can implement the described functionality in varying ways for each particular application, but such implementation decisions should not be interpreted as causing a departure from the scope of the present application.

[0114] The steps of the circuit or algorithm described in connection with the embodiments disclosed herein can be embodied directly in hardware, in a software module executed by a processor, or in a combination of the two. A software module can reside in random access memory (RAM), a memory, a read-only memory (ROM), an electrically programmable ROM (EPROM), an electrically erasable programmable ROM (EEPROM), registers, a hard disk, a removable disk, a CD-ROM, or any other form of storage medium known in the art.

[0115] It should be understood that the terms used herein are for the purpose of describing particular example embodiments and are not intended to be limiting. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. The terms "comprises", "comprising", "includes", "including" and "has" are inclusive and therefore specify the presence of stated features, steps, operations, elements, and / or components, but do not preclude the presence or addition of one or more other features, steps, operations, elements, components, and / or groups thereof. The steps, processes, and operations described herein are not to be construed as necessarily requiring their occurrence in the particular order in which they are described, unless specifically indicated as such. It is also to be understood that additional or alternative steps can be employed.

[0116] The foregoing detailed description of the application has been presented for purposes of illustration and description. Various modifications and changes can be made to these embodiments without departing from the spirit and scope of the application. It is intended that the scope of the application should not be limited by the particular representative embodiments described above.

Claims

1. A method of analyzing a cause of a bad display failure, characterized by, The method comprises: performing signal output on a data line of a target display panel with an undesirable display phenomenon in a first scanning direction and in a second scanning direction, wherein the first scanning direction and the second scanning direction are opposite directions; determining a first undesirable display position of an undesirable display area corresponding to the first scanning direction and a second undesirable display position of an undesirable display area corresponding to the second scanning direction on the target display panel; determining a relative positional relationship between the first undesirable display position and the second undesirable display position; determining a cause of the undesirable display phenomenon corresponding to the relative positional relationship based on a preset undesirable display judgment strategy; the determination of the cause of the undesirable display phenomenon corresponding to the relative positional relationship based on the preset undesirable display judgment strategy comprises: if the relative positional relationship indicates that the first undesirable display position and the second undesirable display position are different, determining that a data line driving software failure causes the undesirable display phenomenon; if the relative positional relationship indicates that the first undesirable display position and the second undesirable display position are the same, determining that a data line driving hardware failure causes the undesirable display phenomenon.

2. The method of claim 1, wherein, the determination of the cause of the undesirable display phenomenon based on the relative positional relationship that the first undesirable display position and the second undesirable display position are the same comprises: if the relative positional relationship indicates that the first undesirable display position and the second undesirable display position are the same, determining a type of the undesirable display phenomenon; based on the type, determining a preset cause of the data line driving hardware failure corresponding to the type.

3. The method of claim 2, wherein, the determination of the cause of the data line driving hardware failure corresponding to the type based on the type comprises: if the type of the undesirable display phenomenon is a linear type, determining that a hardware path failure that transmits a signal on the data line causes the undesirable display phenomenon.

4. The method of claim 2, wherein, the determination of the cause of the data line driving hardware failure corresponding to the type based on the type comprises: if the type of the undesirable display phenomenon is a block type, adjusting a power supply voltage of a data line driving module of the target display panel; if the degree of the undesirable display phenomenon is reduced after the adjustment of the power supply voltage, determining that a power supply failure of the data line driving module causes the undesirable display phenomenon; if the degree of the undesirable display phenomenon is not reduced after the adjustment of the power supply voltage, determining that a hardware path failure that transmits a signal on the data line causes the undesirable display phenomenon.

5. The method of claim 4, wherein, after the adjustment of the power supply voltage of the data line driving module of the target display panel, the method further comprises: increasing the power supply voltage by a preset amplitude to determine a color change amplitude of a block area currently causing the undesirable display phenomenon and a color before the adjustment of the power supply voltage; if the color change amplitude exceeds the preset amplitude, determining that the degree of the undesirable display phenomenon is reduced.

6. An abnormal display failure cause analysis device characterized by comprising: The device is used for executing the bad display failure cause analysis method in any one of claims 1-5, and the device comprises: a scanning module, configured to perform signal output on a data line of a target display panel with a bad display phenomenon in a first scanning direction and in a second scanning direction, wherein the first scanning direction and the second scanning direction are opposite directions; a first determining module, configured to determine a first bad display position of a bad display area corresponding to the first scanning direction and a second bad display position of a bad display area corresponding to the second scanning direction on the target display panel; a second determining module, configured to determine a relative position relationship between the first bad display position and the second bad display position; a third determining module, configured to determine a cause of the bad display phenomenon corresponding to the relative position relationship based on a preset bad display judgment strategy; the third determining module comprises: a first determining unit, configured to determine that the cause of the bad display phenomenon is a data line driving software failure if the relative position relationship indicates that the first bad display position and the second bad display position are different; a second determining unit, configured to determine that the cause of the bad display phenomenon is a data line driving hardware failure if the relative position relationship indicates that the first bad display position and the second bad display position are same.

7. The apparatus of claim 6, wherein, the second determining unit comprises: a first determining sub-unit, configured to determine a type of the bad display phenomenon if the relative position relationship indicates that the first bad display position and the second bad display position are same; a second determining sub-unit, configured to determine a preset cause of the data line driving hardware failure corresponding to the type based on the type.

8. An electronic device, comprising: comprise: a memory, configured to store a computer program; a processor, configured to execute the computer program stored in the memory, and the computer program is executed to implement the bad display failure cause analysis method in any one of claims 1-5.

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