Poor display fault reason analysis method and device, electronic equipment and storage medium

Abstract

The embodiment of the invention relates to a bad display fault reason analysis method and device, electronic equipment and a storage medium, and the method comprises the steps: carrying out the signal output of a data line of a target display panel with a bad display phenomenon according to a first scanning direction, and carrying out the signal output according to a second scanning direction; determining 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; determining a relative position relationship between the first bad display position and the second bad display position; and based on a preset bad display judgment strategy, determining a reason for generating a bad display phenomenon corresponding to the relative position relationship. According to the embodiment of the invention, the reason of the bad display fault can be quickly determined by utilizing the relation between the bad display and the scanning direction of the data line, and the fault processing can be efficiently carried out on the panel with the bad display.

Description

Technical Field

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

[0002] During the production, testing or use of liquid crystal display panels, a type of vertical display failure is often encountered. This type of display failure phenomenon usually includes two types: V_line and V_block. Among them, V_line is visually manifested as one or more vertical straight lines, which can be white lines (clearly displayed on a black screen or a certain grayscale screen) or black lines (clearly displayed on a white screen or a certain grayscale screen), or gray lines of a certain grayscale, or even red, green and blue lines of a certain grayscale. V_block is visually manifested as a vertical band, which can be completely black, completely white, or even a gray band of a certain grayscale.

[0003] For the above two bad display phenomena, the currently commonly used fault analysis method requires software and hardware analysis of the signals on the vertical data lines of the panel, and the efficiency of fault analysis is low. Summary of the invention

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

[0005] In a first aspect, an embodiment of the present application provides a method for analyzing the cause of a poor display failure, the method comprising: outputting signals in a first scanning direction and a second scanning direction for a data line of a target display panel where a poor display phenomenon occurs; determining, on the target display panel, a first poor display position of a poor display area corresponding to the first scanning direction and a second poor display position of a poor display area corresponding to the second scanning direction; determining a relative position relationship between the first poor display position and the second poor display position; and determining, based on a preset poor display judgment strategy, the cause of the poor display phenomenon corresponding to the relative position relationship.

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

[0007] In one possible implementation, if the relative position relationship indicates that the first poor display position and the second poor display position are the same, determining that the cause of the poor display phenomenon is a data line driver hardware failure includes: if the relative position relationship indicates that the first poor display position and the second poor display position are the same, determining the type of the poor display phenomenon; based on the type, determining a pre-set cause of the data line driver hardware failure corresponding to the type.

[0008] In one possible implementation, based on the type, determining the cause of the data line driver hardware failure that is preset and corresponding to the type includes: if the type of the poor display phenomenon is a linear type, determining that the cause of the poor display phenomenon is a hardware path failure of the signal on the transmission data line.

[0009] In one possible implementation, based on the type, determining the cause of a data line driver hardware failure that is preset and corresponds to the type, including: if the type of the poor display phenomenon is a block type, adjusting the power supply voltage of the data line driver module of the target display panel; if the degree of the poor display phenomenon is reduced after adjusting the power supply voltage, determining that the cause of the poor display phenomenon is a power supply failure of the data line driver module; if the degree of the poor display phenomenon is not reduced after adjusting the power supply voltage, determining that the cause of the poor display phenomenon is a hardware path barrier for transmitting signals on the data line.

[0010] In one possible embodiment, after adjusting the power supply voltage of the data line driving module of the target display panel, the method further includes: increasing the power supply voltage by a preset amplitude, determining the color of the block area currently producing the poor display phenomenon, and the color change amplitude before adjusting the power supply voltage; if the color change amplitude exceeds the preset amplitude, determining that the degree of the poor display phenomenon is reduced. In a second aspect, an embodiment of the present application provides a device for analyzing the cause of a poor display failure, the device comprising: a scanning module for outputting signals according to a first scanning direction and a second scanning direction to a data line of a target display panel where a poor display phenomenon occurs; a first determination module for determining, on the target display panel, a first poor display position of a poor display area corresponding to the first scanning direction, and a second poor display position of a poor display area corresponding to the second scanning direction; a second determination module for determining the relative position relationship between the first poor display position and the second poor display position; and a third determination module for determining the cause of the poor display phenomenon corresponding to the relative position relationship based on a preset poor display judgment strategy.

[0011] In one possible embodiment, the third determination module includes: a first determination unit, used to determine that the cause of the poor display phenomenon is a data line driver software failure if the relative position relationship indicates that the first poor display position and the second poor display position are different; a second determination unit, used to determine that the cause of the poor display phenomenon is a data line driver hardware failure if the relative position relationship indicates that the first poor display position and the second poor display position are the same.

[0012] In one possible embodiment, the second determination unit includes: a first determination subunit, used 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; a second determination subunit, used to determine the cause of the data line driver hardware failure that is pre-set and corresponds to the type based on the type.

[0013] In a third aspect, an embodiment of the present application provides an electronic device, comprising: a memory for storing a computer program; a processor for executing the computer program stored in the memory, and when the computer program is executed, the method of any embodiment of the method for analyzing the cause of a poor display failure according to the first aspect of the present application is implemented.

[0014] In a fourth aspect, an embodiment of the present application provides a computer-readable storage medium having a computer program stored thereon. When the computer program is executed by a processor, a method as in any embodiment of the method for analyzing the cause of a poor display failure in the first aspect described above is implemented.

[0015] In a fifth aspect, an embodiment of the present application provides a computer program, which includes a computer-readable code. When the computer-readable code runs on a device, the processor in the device implements a method as described in any embodiment of the method for analyzing the cause of a poor display failure in the first aspect above.

[0016] The method, device, electronic device and computer-readable storage medium for analyzing the cause of a bad display failure provided by the embodiments of the present application respectively output signals to the data lines of the target display panel in the first scanning direction and the second scanning direction, and then determine the relative position relationship between 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 on the target display panel, and finally determine the cause of the bad display phenomenon corresponding to the relative position relationship 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 failure, which helps to efficiently handle the failure of the panel with bad display. BRIEF DESCRIPTION OF THE DRAWINGS

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

[0018] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, for ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative labor.

[0019] One or more embodiments are exemplarily described by pictures in the corresponding drawings, and these exemplified descriptions do not constitute limitations on the embodiments. Elements with the same reference numerals in the drawings represent similar elements, and unless otherwise stated, the figures in the drawings do not constitute proportional limitations.

[0020] Figure 1 A flowchart of a method for analyzing the cause of a poor display failure provided in an embodiment of the present application;

[0021] Figure 2A A schematic diagram showing that when the bad display phenomenon is V_line, there is no difference between the first bad display position and the second bad display position provided in an embodiment of the present application;

[0022] Figure 2B A schematic diagram showing a difference between a first bad display position and a second bad display position when the bad display phenomenon is V_line provided in an embodiment of the present application;

[0023] Figure 3A A schematic diagram showing that when the bad display phenomenon is V_block, there is no difference between the first bad display position and the second bad display position provided in an embodiment of the present application;

[0024] Figure 3B A schematic diagram showing a difference between a first bad display position and a second bad display position when the bad display phenomenon is V_block provided in an embodiment of the present application;

[0025] Figure 4 A flowchart of another method for analyzing the cause of a bad display failure provided in an embodiment of the present application;

[0026] Figure 5 A flowchart of another method for analyzing the cause of a bad display failure provided in an embodiment of the present application;

[0027] Figure 6 A flowchart of another method for analyzing the cause of a bad display failure provided in an embodiment of the present application;

[0028] Figure 7A schematic diagram of the structure of a device for analyzing the cause of a bad display failure provided in an embodiment of the present application;

[0029] Figure 8 A schematic diagram of the structure of an electronic device provided in an embodiment of the present application. 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 part of the embodiments of the present application, rather than all of the embodiments. It should be noted that unless otherwise specifically stated, the relative arrangement of the components and steps, the numerical expressions and the numerical values ​​described in these embodiments do not limit the scope of the present application.

[0031] Those skilled in the art will understand that the terms "first" and "second" in the embodiments of the present application are only used to distinguish between different steps, devices, modules and other objects, and do not represent any specific technical meanings, nor do they indicate the logical order between them.

[0032] It should also be understood that in this embodiment, “plurality” may refer to two or more than two, and “at least one” may refer to one, two or more than two.

[0033] It should also be understood that any component, data or structure mentioned in the embodiments of the present application can generally be understood as one or more, unless explicitly limited or otherwise indicated in the context.

[0034] In addition, the term "and / or" in this application is only a description of the association relationship of associated objects, indicating that there can be three relationships. For example, A and / or B can represent: A exists alone, A and B exist at the same time, and B exists alone. In addition, the character " / " in this application generally indicates that the associated objects before and after are in an "or" relationship.

[0035] It should also be understood that the description of the various embodiments in this application focuses on the differences between the various embodiments, and the same or similar aspects thereof can be referenced to each other, and for the sake of brevity, they will not be described one by one.

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

[0037] Technologies, circuits, and devices known to ordinary technicians in the relevant art may not be discussed in detail, but where appropriate, the above-mentioned technologies, circuits, and devices should be considered as part of the specification.

[0038] It should be noted that like reference numerals and letters refer to similar items in the following figures, and therefore, once an item is defined in one figure, it need not be further discussed in subsequent figures.

[0039] It should be noted that, in the absence of conflict, the embodiments in this application and the features in the embodiments can be combined with each other. To facilitate the understanding of the embodiments of the present application, the present application will be described in detail below with reference to the accompanying drawings and in combination with the embodiments. Obviously, the described embodiments are part of the embodiments of the present application, rather than all of the embodiments. Based on the embodiments in this application, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of this application.

[0040] In order to solve the technical problem of low efficiency in determining the cause of a display panel failure in the prior art, the present application provides a method for analyzing the cause of a display failure, which can quickly determine the cause of the display failure by analyzing the poor display positions generated in different scanning directions.

[0041] Figure 1 A flow chart of a method for analyzing the cause of a bad display failure provided in an embodiment of the present application. This method can be applied to a display panel and executed by a control chip (such as SOC) on the display panel, or it can be executed by one or more electronic devices such as a desktop computer, a laptop computer, a smart phone, a portable computer, etc. that can control the display panel. In addition, the execution subject of this method can be hardware or software. When the above-mentioned execution subject is hardware, the execution subject can be one or more of the above-mentioned electronic devices. For example, a single electronic device can execute this method, or a plurality of electronic devices can cooperate with each other to execute this method. When the above-mentioned execution subject is software, this method can be implemented as multiple software or software modules, or it can be implemented as a single software or software module. It is not specifically limited here.

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

[0043] Step 101 : For a data line of a target display panel where a poor display phenomenon occurs, a signal is output according to a first scanning direction, and a signal is output according to a second scanning direction.

[0044] In some embodiments, the bad display phenomenon of the target display panel may be a fault phenomenon related to the extension direction of the data line (referred to as the source direction in this embodiment), which generally includes two bad display phenomena: V_line and V_block. Figure 2A and Figure 2BAs shown, V_line is visually displayed as one or more straight lines perpendicular to the panel, which can be white or black, or gray lines of a certain grayscale, or even red, green, and blue lines of a certain grayscale. This line may be a straight line composed of one or more columns of pixels containing RGB sub-pixels, or a straight line composed of a certain sub-pixel in RGB, which is related to the architecture of the panel.

[0045] like Figure 3A and Figure 3B As shown, V_block visually appears as a vertical band, which can be completely black, completely white, or even a gray band of a specific gray scale. V_block defects often have a certain area regularity, that is, they occupy 1 / 12, 1 / 6, 1 / 4, 1 / 3, 5 / 12, 1 / 2, 7 / 12, 2 / 3, 3 / 4, 5 / 6, 11 / 12 of the entire screen, and can even be 12 / 12 (black screen, white screen, or gray screen). This area regularity of V_block is mainly determined by its hardware architecture. For example, for a panel with a resolution of 3840×2160 and a 1G1D architecture, there are 3840*3=11520 data lines on its surface. If the most common 960-channel COF (Chip On Film) is used, the total number of COFs required is 11520 / 960=12, that is, Figure 2A , Figure 2B , Figure 3A , Figure 3B COF1-COF12 are shown. That is, each COF manages the display of 1 / 12 area. If the output of 960 channels of one COF is abnormal, then 1 / 12 area will display poorly, that is, 1 / 12V_block. For dual gate panel, that is, by doubling the row scan lines, the number of data lines is reduced to half of the original. If each COF still has 960 channels, 6 COFs are needed, that is, each COF manages the display of 2 / 12 area. If the output of 960 channels of a COF is abnormal, then at least 1 / 6 area will display poorly.

[0046] The first scanning direction and the second scanning direction are opposite directions. During scanning, the electronic device executing the method can control the data line driving module on the target display panel to output signals for driving sub-pixel display to each data line in sequence according to the set scanning direction. Figure 2A , Figure 2B , Figure 3A , Figure 3BAs shown, the 12 COFs of the target display panel are arranged horizontally at the bottom of the panel, the first scanning direction can be the direction from COF1 to COF12 (ie, Source output forward scanning), and the second scanning direction is the direction from COF12 to COF1 (ie, Source output reverse scanning).

[0047] Step 102 : determining, on the target display panel, a first bad display position of a bad display area corresponding to a first scanning direction and a second bad display position of a bad display area corresponding to a second scanning direction.

[0048] In some embodiments, the first bad display position and the second bad display position may be recorded in various ways. For example, the screen displayed on the screen may be captured, and the first bad display position and the second bad display position may be determined by identifying the color of each pixel on the screen. For another example, a camera may be used to capture an image of the screen, and the image may be identified to determine the first bad display position and the second bad display position. In addition, the first bad display position and the second bad display position may be determined from the displayed screen by manual observation.

[0049] like Figure 2A , Figure 2B , Figure 3A , Figure 3B As shown, the horizontal coordinate of V_line or V_block on the panel can be recorded and used as the first defective display position or the second defective display position.

[0050] Step 103: determining the relative position relationship between the first defective display position and the second defective display position.

[0051] In some embodiments, the electronic device may 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 may be determined manually. For example, the relative positional relationship between the two positions may 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 automatically determining the relative positional relationship between the first defective display position and the second defective display position, an error threshold may 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] like Figure 2AAs shown, it shows that when the bad display phenomenon is V_line, the first bad display position and the second bad display position corresponding to the first scanning direction and the second scanning direction respectively, and there is no difference between the first bad display position and the second bad display position in the figure. Figure 2B As shown, there is a difference between the first defective display position and the second defective display position in the figure.

[0054] like Figure 3A As shown, it shows that when the bad display phenomenon is V_block, the first bad display position and the second bad display position corresponding to the first scanning direction and the second scanning direction respectively, and there is no difference between the first bad display position and the second bad display position in the figure. Figure 3B As shown, there is a difference between the first defective display position and the second defective display position in the figure.

[0055] Step 104: Based on a preset bad display judgment strategy, determine the cause of the bad display phenomenon corresponding to the relative position relationship.

[0056] In some embodiments, a bad display judgment strategy can be pre-set, and the strategy is used to determine the relative position relationship between the first bad display position and the second bad display position, and the corresponding relationship with the cause of the bad display phenomenon. For example, when there is a difference between the first bad display position and the second bad display position, it can be judged that the bad display phenomenon is caused by the data line driver of the SOC on the target display panel. When there is no difference between the first bad display position and the second bad display position, it can be judged that the bad display phenomenon is related to the hardware, and it is necessary to check the hardware such as the wire material and voltage source that transmits data on the panel.

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

[0058] The method for analyzing the cause of a bad display failure provided in the embodiment of the present application performs signal output on the data line of the target display panel according to the first scanning direction and the second scanning direction respectively, and then determines the relative position relationship between 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 on the target display panel, and finally determines the cause of the bad display phenomenon corresponding to the relative position relationship based on the bad display judgment strategy. The embodiment of the present application realizes the use of the connection between the bad display and the data line scanning direction to quickly determine the cause of the bad display failure, which helps to efficiently handle the panel with bad display.

[0059] In some optional implementations, such as Figure 4 As shown, step 104 includes:

[0060] Step 1041: If the relative position relationship indicates that the first bad display position is different from the second bad display position, it is determined that the cause of the bad display phenomenon is a data line driver software failure.

[0061] The data line driver 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 means that the cause of the bad display is not related to the signal transmission path, but is related to the driver software (i.e., source driver). At this time, a prompt message indicating the failure of the data line driver software can be output.

[0062] like Figure 2B and Figure 3B As shown, the first bad display position and the second bad display position are different and symmetrically distributed. At this time, it is determined that the cause of the fault is a data line driver 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 driver hardware failure.

[0064] The data line driver hardware failure may be a hardware failure related to the signal on the transmission data line. For example, the data line driver hardware failure may include a wire material failure, and the wire material failure may include a data transmission path included in the FFC or the gold finger on the FFC being shorted to the ground, which may cause the corresponding COF output to work abnormally, thereby causing the data line output signal to be abnormal.

[0065] This embodiment determines whether the first bad display position and the second bad display position are the same. In the cases of the same or different conditions, it can be determined whether the fault comes from the data line driver software or the data line driver hardware, thereby further improving the accuracy of the bad display fault determination.

[0066] In some optional implementations, such as Figure 5 As shown, step 1042 includes:

[0067] Step 10421: If the relative position relationship indicates that the first defective display position and the second defective display position are the same, determine the type of the defective display phenomenon.

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

[0069] Step 10422: Based on the type, determine the cause of the data line driver hardware failure that is preset and corresponds to the type.

[0070] Different types of poor display phenomena may correspond to different causes of data line driver hardware failures, and the corresponding relationship may be preset. For example, a corresponding relationship table may be set, and the corresponding cause of the data line driver hardware failure may be found from the corresponding relationship table according to the type of the current poor display phenomenon.

[0071] This embodiment pre-sets the type of poor display phenomenon and the cause of the data line driver hardware failure. When it is determined that the poor display is not related to the data line driver software, the cause of the corresponding hardware failure can be quickly determined according to the type of the poor display phenomenon, thereby further improving the accuracy and efficiency of determining the cause of the poor display.

[0072] In some optional implementations, such as Figure 6 As shown, step 10422 includes:

[0073] Step 104221, if the type of the poor display phenomenon is a linear type, determine that the cause of the poor display phenomenon is a hardware path failure of the signal on the transmission data line.

[0074] Specifically, in the case of determining that a data line driver hardware failure occurs, the V_line phenomenon is related to a hardware path failure of the data line signal. For example, the hardware path failure is related to COF or to a component bonding process. If it is related to COF, it can be further confirmed whether it is caused by a data line driver module failure or a COF film short circuit. If it is related to bonding, it can be further confirmed whether it is caused by poor bonding, bonding foreign matter, or insufficient bonding particles.

[0075] This embodiment realizes that when the bad display phenomenon is of a linear type, the cause of the bad display phenomenon is directly determined to be a hardware path failure of the signal on the transmission data line, thereby facilitating rapid location of the cause of the failure according to the type of the bad display.

[0076] In some optional implementations, such as Figure 6 As shown, step 10422 includes:

[0077] Step 104222: if the type of the bad display phenomenon is a block type, adjust the supply voltage of the data line driving module of the target display panel.

[0078] Among them, for the V_block type of bad display position that does not change with the first scanning direction and the second scanning direction, there may be multiple reasons for the badness. For example, the power supply of the data line driver module (including the power supply of COF) is abnormal, and the common ones are AVDD (Analog Voltage Driver), HAVDD (High-Voltage Analog Voltage Driver), DVDD1V8 (1.8V Digital Core Supply Voltage), DVDD1V9 (1.9V Digital Core Supply Voltage), etc. In particular, 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 may be determined whether the degree of the poor display phenomenon is reduced according to the following steps:

[0080] The supply voltage is increased by a preset range to determine the color of the block area currently producing the bad display phenomenon and the color change range before the supply voltage is adjusted; if the color change range exceeds the preset range, it is determined that the degree of the bad display phenomenon is reduced.

[0081] As an example, the screen currently displayed by the target display panel can be captured, the screen can be identified, and the change in the average pixel value of the current V_block area and the average pixel value before adjusting the voltage can be determined as the color change amplitude. If the color change amplitude exceeds the preset amplitude, it means that the adjustment voltage has an impact on the improvement of the poor display phenomenon. At this time, it can be determined that the degree of the poor display phenomenon has decreased. By determining whether the degree of the poor display phenomenon has decreased by judging the color change of the block area of ​​the poor display phenomenon, it is possible to accurately judge the impact of the power supply voltage on the poor display phenomenon and improve the efficiency of fault judgment.

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

[0083] Specifically, the voltages of AVDD, HAVDD, DVDD1V8, DVDD1V9, etc. can be appropriately increased. If the bad display is improved, it can be proved that V_block is related to the power supply voltage of the data line driver module (Source driver). The voltage increase operation can be performed manually or by controlling the power module of the target display panel through the electronic device.

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

[0085] Specifically, if V_block has nothing to do with the power supply voltage of the data line driver module, it can be determined that V_block is caused by a cable failure. For example, if one of the paths of the FFC or the gold finger on the FFC is shorted to the ground, the corresponding COF output will work abnormally. If there are some foreign objects on the connector on the TCON-less board or S-PCB board, causing a path data to be shorted to the ground, it will also cause this V_block to display abnormally. Damage to the COF or Source driver is also a common cause of poor display of this V_block. All of the above fault causes can be hardware path failures.

[0086] This embodiment realizes that when the bad display phenomenon is of block type, the power supply voltage is adjusted to further determine whether the cause of the bad display phenomenon is a power supply failure or a hardware path failure, thereby helping to quickly locate the cause of the failure according to the type of bad display.

[0087] Figure 7 A schematic diagram of a device for analyzing the cause of a bad display failure provided in an embodiment of the present application. Specifically comprising:

[0088] The scanning module 701 is used to output signals according to a first scanning direction and a second scanning direction for data lines of a target display panel where a poor display phenomenon occurs;

[0089] A first determining module 702 is used to determine, on the target display panel, a first bad display position of a bad display area corresponding to a first scanning direction and a second bad display position of a bad display area corresponding to a second scanning direction;

[0090] A second determining module 703, configured to determine a relative position relationship between a first defective display position and a second defective display position;

[0091] The third determination module 704 is used to determine the cause of the poor display phenomenon corresponding to the relative position relationship based on a preset poor display judgment strategy.

[0092] In some optional implementations, the third determination module includes: a first determination unit, used to determine that the cause of the poor display phenomenon is a data line driver software failure if the relative position relationship indicates that the first poor display position and the second poor display position are different; a second determination unit, used to determine that the cause of the poor display phenomenon is a data line driver hardware failure if the relative position relationship indicates that the first poor display position and the second poor display position are the same.

[0093] In some optional implementations, the second determination unit includes: a first determination subunit, used 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; a second determination subunit, used to determine, based on the type, the cause of a data line driver hardware failure that is pre-set and corresponds to the type.

[0094] In some optional implementations, the second determining subunit is further used to: if the type of the poor display phenomenon is a linear type, determine that the cause of the poor display phenomenon is a hardware path failure of a signal on a transmission data line.

[0095] In some optional implementations, the second determination subunit is further used to: if the type of the poor display phenomenon is a block type, adjust the power supply voltage of the data line driver module of the target display panel; if the degree of the poor display phenomenon is reduced after adjusting the power supply voltage, determine that the cause of the poor display phenomenon is a power supply failure of the data line driver module; if the degree of the poor display phenomenon is not reduced after adjusting the power supply voltage, determine that the cause of the poor display phenomenon is a hardware path barrier for transmitting signals on the data line.

[0096] In some optional implementations, the second determination subunit is further used to: increase the supply voltage by a preset amplitude, determine the color of the block area currently producing the poor display phenomenon, and the color change amplitude before adjusting the supply voltage; if the color change amplitude exceeds the preset amplitude, determine that the degree of the poor display phenomenon is reduced.

[0097] The device for analyzing the cause of a bad display failure provided in this embodiment can be as follows: Figure 7 The device for analyzing the cause of a bad display failure shown in the figure can execute all the steps of the above methods for analyzing the cause of a bad display failure, thereby achieving the technical effects of the above methods for analyzing the cause of a bad display failure. For details, please refer to the above related description. For the sake of brevity, it will not be repeated here.

[0098] Figure 8 A schematic diagram of the structure of an electronic device provided in an embodiment of the present application, Figure 8 The electronic device 800 shown includes: 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 via a bus system 805. It is understood that the bus system 805 is used to achieve connection and communication between these components. In addition to the data bus, the bus system 805 also includes a power bus, a control bus and a status signal bus. However, for the sake of clarity, the bus system 805 is not described in detail. Figure 8 Various buses are labeled as bus system 805 .

[0099] The user interface 803 may include a display, a keyboard, or a pointing device (eg, a mouse, a trackball, a touch pad, or a touch screen).

[0100] It can be understood that the memory 802 in the embodiment of the present application can be a volatile memory or a non-volatile memory, or can include both volatile and non-volatile memories. Among them, the non-volatile memory can be a read-only memory (ROM), a programmable read-only memory (PROM), an erasable programmable read-only memory (EPROM), an electrically erasable programmable read-only memory (EEPROM), or a flash memory. The volatile memory can be a random access memory (RAM), which is used as an external cache. By way of example but not limitation, many forms of RAM are available, such as static random access memory (SRAM), dynamic random access memory (DRAM), synchronous dynamic random access memory (SDRAM), double data rate synchronous dynamic random access memory (DDRSDRAM), enhanced synchronous dynamic random access memory (ESDRAM), synchronous link dynamic random access memory (SLDRAM), and direct RAM bus random access memory (DRRAM). The memory 802 described herein is intended to include, but is not limited to, these and any other suitable types of memory.

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

[0102] The operating system 8021 includes various system programs, such as a framework layer, a core library layer, a driver layer, etc., which are used to implement various basic services and process hardware-based tasks. The application 8022 includes various application programs, such as a media player (Media Player), a browser (Browser), etc., which are used to implement various application services. The program for implementing the method of the embodiment of the present application can be included in the application 8022.

[0103] In this embodiment, by calling the program or instruction stored in the memory 802, specifically, the program or instruction stored in the application 8022, the processor 801 is used to execute the method steps provided by each method embodiment, for example, including:

[0104] For data lines of a target display panel where a poor display phenomenon occurs, signals are output in a first scanning direction, and signals are output in a second scanning direction; on the target display panel, a first poor display position of a poor display area corresponding to the first scanning direction, and a second poor display position of a poor display area corresponding to the second scanning direction are determined; a relative position relationship between the first poor display position and the second poor display position is determined; based on a preset poor display judgment strategy, a cause of the poor display phenomenon corresponding to the relative position relationship is determined.

[0105] The method disclosed in the above embodiment of the present application can be applied to the processor 801, or implemented by the processor 801. The processor 801 may be an integrated circuit chip with signal processing capabilities. In the implementation process, each step of the above method can be completed by the hardware integrated logic circuit or software instructions in the processor 801. The above processor 801 can be a general processor, a digital signal processor (Digital Signal Processor, DSP), an application-specific integrated circuit (Application Specific Integrated Circuit, ASIC), a field programmable gate array (Field Programmable Gate Array, FPGA) or other programmable logic devices, discrete gates or transistor logic devices, discrete hardware components. The methods, steps and logic block diagrams disclosed 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, etc. The steps of the method disclosed in the embodiment of the present application can be directly embodied as a hardware decoding processor to execute, or the hardware and software units in the decoding processor can be executed. The software unit can be located in a mature storage medium in the field such as a random access memory, a flash memory, a read-only memory, a programmable read-only memory or an electrically erasable programmable memory, a register, etc. 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 its hardware.

[0106] It is understood that the embodiments described herein may be implemented in hardware, software, firmware, middleware, microcode, or a combination thereof. For hardware implementation, the processing unit may be implemented in one or more application specific integrated circuits (ASIC), digital signal processors (DSP), digital signal processing devices (DSPDevice, DSPD), programmable logic devices (PLD), field programmable gate arrays (FPGA), general purpose processors, controllers, microcontrollers, microprocessors, other electronic units for performing the above functions of the present application, or a combination thereof.

[0107] For software implementation, the technology described above in this article can be implemented by a unit that performs the functions described above in this article. The software code can be stored in a memory and executed by a processor. The memory can be implemented in the processor or outside the processor.

[0108] The electronic device provided in this embodiment may be Figure 8 The electronic device shown in can execute all the steps of the above-mentioned methods for analyzing the causes of bad display failures, thereby achieving the technical effects of the above-mentioned methods for analyzing the causes of bad display failures. Please refer to the above related description for details. For the sake of brevity, it will not be repeated here.

[0109] The embodiment of the present application also provides a storage medium (computer-readable storage medium). The storage medium here stores one or more programs. The storage medium may include a volatile memory, such as a random access memory; the memory may also include a non-volatile memory, such as a read-only memory, a flash memory, a hard disk or a solid-state drive; the memory may also include a combination of the above-mentioned types of memory.

[0110] When one or more programs in the storage medium can be executed by one or more processors, the above-mentioned method for analyzing the cause of a poor display failure executed on the electronic device side can be implemented.

[0111] The processor is used to execute the program stored in the memory to implement the following steps of the method for analyzing the cause of a poor display failure performed on the electronic device side:

[0112] For data lines of a target display panel where a poor display phenomenon occurs, signals are output in a first scanning direction, and signals are output in a second scanning direction; on the target display panel, a first poor display position of a poor display area corresponding to the first scanning direction, and a second poor display position of a poor display area corresponding to the second scanning direction are determined; a relative position relationship between the first poor display position and the second poor display position is determined; based on a preset poor display judgment strategy, a cause of the poor display phenomenon corresponding to the relative position relationship is determined.

[0113] The professionals should further realize that the units and algorithm steps of each example described in conjunction with the embodiments disclosed herein can be implemented by electronic hardware, computer software, or a combination of the two. In order to clearly illustrate the interchangeability of hardware and software, the composition and steps of each example have been generally described in terms of function in the above description. Whether these functions are performed in hardware or software depends on the specific application and design constraints of the technical solution. Professional and technical personnel can use different circuits to implement the described functions for each specific application, but such implementation should not be considered to be beyond the scope of this application.

[0114] The steps of the circuits or algorithms described in conjunction with the embodiments disclosed herein may be implemented using hardware, software modules executed by a processor, or a combination of the two. The software modules may be placed in a random access memory (RAM), a memory, a read-only memory (ROM), an electrically programmable ROM, an electrically erasable programmable ROM, a register, 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 in the text are only for the purpose of describing specific example embodiments, and are not intended to be limiting. Unless the context clearly indicates otherwise, the singular forms "one", "an" and "said" as used in the text may also be meant to include plural forms. The terms "include", "comprise", "contain", and "have" are inclusive, and therefore specify the existence of stated features, steps, operations, elements and / or parts, but do not exclude the existence or addition of one or more other features, steps, operations, elements, parts, and / or combinations thereof. The steps, processes, and operations described in the text are not interpreted as necessarily requiring them to be performed in the specific order described or illustrated, unless the execution order is clearly indicated. It should also be understood that additional or alternative steps may be used.

[0116] The above description is only a specific implementation of the present application, so that those skilled in the art can understand or implement the present application. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein can be implemented in other embodiments without departing from the spirit or scope of the present application. Therefore, the present application will not be limited to the embodiments shown herein, but will conform to the widest range consistent with the principles and novel features applied for herein.

Claims

1. A method for analyzing the cause of a bad display failure, characterized in that: The method comprises: For a data line of a target display panel having a poor display phenomenon, outputting a signal according to a first scanning direction, and outputting a signal according to a second scanning direction; Determining, on the target display panel, a first bad display position of the bad display area corresponding to the first scanning direction and a second bad display position of the bad display area corresponding to the second scanning direction; determining a relative position relationship between the first defective display position and the second defective display position; Based on a preset bad display judgment strategy, the cause of the bad display phenomenon corresponding to the relative position relationship is determined.

2. The method according to claim 1, characterized in that The determining the cause of the poor display phenomenon corresponding to the relative position relationship based on the preset poor display judgment strategy includes: 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 driver software failure; If the relative position relationship indicates that the first defective display position and the second defective display position are the same, it is determined that the cause of the defective display phenomenon is a data line driving hardware failure.

3. The method according to claim 2, characterized in that If the relative position relationship indicates that the first bad display position and the second bad display position are the same, determining that the cause of the bad display phenomenon is a data line driver hardware failure, comprises: If the relative position relationship indicates that the first defective display position and the second defective display position are the same, determining the type of the defective display phenomenon; Based on the type, a preset cause of the data line driver hardware failure corresponding to the type is determined.

4. The method according to claim 3, characterized in that The determining, based on the type, a preset cause of a data line driver hardware failure corresponding to the type includes: If the type of the bad display phenomenon is a linear type, it is determined that the cause of the bad display phenomenon is a hardware path failure for transmitting the signal on the data line.

5. The method according to claim 3, characterized in that: The determining, based on the type, a preset cause of a data line driver hardware failure corresponding to the type includes: If the type of the bad display phenomenon is a block type, adjusting the power supply voltage of the data line driving module of the target display panel; If the degree of the poor display phenomenon is reduced after adjusting the supply voltage, it is determined that the cause of the poor display phenomenon is a power supply failure of the data line driving module; If the degree of the poor display phenomenon is not reduced after adjusting the supply voltage, it is determined that the cause of the poor display phenomenon is a hardware path barrier for transmitting the signal on the data line.

6. The method according to claim 5, characterized in that After adjusting the power supply voltage of the data line driving module of the target display panel, the method further includes: The supply voltage is increased by a preset amplitude, and the color of the block area currently producing the poor display phenomenon is determined, and the color change amplitude before the supply voltage is adjusted; If the color change amplitude exceeds a preset amplitude, it is determined that the degree of the poor display phenomenon is reduced.

7. A device for analyzing the cause of a bad display failure, characterized in that: The device comprises: A scanning module, used for outputting signals according to a first scanning direction and a second scanning direction for data lines of a target display panel where a poor display phenomenon occurs; A first determining module is used to determine, on the target display panel, a first bad display position of the bad display area corresponding to the first scanning direction and a second bad display position of the bad display area corresponding to the second scanning direction; A second determining module, configured to determine a relative position relationship between the first defective display position and the second defective display position; The third determination module is used to determine the cause of the poor display phenomenon corresponding to the relative position relationship based on a preset poor display judgment strategy.

8. The device according to claim 7, characterized in that The third determination module comprises: a first determining unit, configured to determine that a cause of the poor display phenomenon is a data line driver software failure if the relative position relationship indicates that the first poor display position and the second poor display position are different; The second determining unit is configured to determine that a cause of the poor display phenomenon is a data line driving hardware failure if the relative position relationship indicates that the first poor display position is the same as the second poor display position.

9. The device according to claim 7, characterized in that The second determining unit includes: A first determining subunit, configured to determine a 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; The second determining subunit is configured to determine, based on the type, a preset cause of a data line driver hardware failure corresponding to the type.

10. An electronic device, characterized in that: include: Memory for storing computer programs; A processor is used to execute the computer program stored in the memory, and when the computer program is executed, the method for analyzing the cause of a poor display failure described in any one of claims 1 to 6 is implemented.

Images