Display panel aging monitoring method and device, electronic equipment and storage medium

Abstract

The invention discloses a display panel aging monitoring method and device, electronic equipment and a storage medium, and the method comprises the steps: obtaining the display modes of a display panel in a high-temperature aging process, and the duration and driving current of each display mode in the historical data of normal high-temperature aging; determining a detection period based on the duration of the display mode, and determining a current difference reference value when the display mode is switched based on the change amplitude of the driving current of the display mode; in the high-temperature aging process, whether the display mode is switched successfully or not is detected based on the detection period and the switching current difference reference value; and if not, giving an alarm. The change amplitude of the driving current can be used for determining the current difference reference value when the display mode is switched, the difference value when the display mode is switched is approved according to the detection period, then whether the display mode is switched or not is determined, and switching of the display mode during high-temperature aging can be accurately monitored.

Description

Technical Field

[0001] The present invention relates to the technical field of display panel aging monitoring, and in particular to a display panel aging monitoring method, device, electronic equipment and storage medium. Background Art

[0002] Theoretically, the service life of display panels can be quite long, but many LED lights on display panels become dim, uneven, change color or even stop emitting light after being lit for a short time. There are many reasons for this, such as poor control circuits and heat dissipation design.

[0003] In order to reduce or avoid the above-mentioned adverse phenomena, the industry usually conducts high-temperature aging tests on display panels before they are put on the production line. High-temperature aging can make the characteristics of panel devices tend to be stable, and can also accelerate the occurrence of defects to detect defects and prevent the leakage of defective products. Display panels usually have a large number of different types of lamp beads. In the specific aging process, the display mode of the display panel needs to be switched to obtain aging data under different display modes. However, when switching the display mode, there is usually a mode switching failure, which causes the display panel to stay in the same display mode for a long time for aging. In this case, the aging degree of the lamp beads in this display mode is more serious, while the aging degree of other display modes is lighter, which affects the high-temperature aging results. Therefore, how to accurately monitor the display mode during high-temperature aging needs to be solved. Summary of the invention

[0004] The invention provides a display panel aging monitoring method to solve the problem of display panel aging monitoring.

[0005] In a first aspect, the present invention provides a display panel aging monitoring method, comprising:

[0006] In the historical data of normal high-temperature aging, the display mode of the display panel during the high-temperature aging process and the duration and driving current of each display mode are obtained;

[0007] Determining a detection period based on the duration of the display mode;

[0008] Determining the current difference reference value when the display mode is switched based on the change amplitude of the driving current of the display mode;

[0009] During the high temperature aging process of the display panel, detecting whether the display mode is switched successfully based on the detection cycle and the switching current difference reference value;

[0010] If not, an alarm is issued to repair the high temperature aging equipment.

[0011] Optionally, determining the detection period based on the duration of the display mode includes:

[0012] Calculate the total duration of each display mode to obtain the total duration of all modes;

[0013] The product of the total time consumption of the full mode and a preset ratio is calculated to obtain a detection period, and the preset ratio is less than 1.

[0014] Optionally, the determining the current difference reference value when the display mode is switched based on the change amplitude of the driving current of the display mode includes:

[0015] For each of the display modes, calculating an average value of the driving current of the display mode to obtain an average current value;

[0016] Calculating the absolute value of the difference between the average current values ​​of any two of the display modes to obtain a plurality of candidate current difference values;

[0017] The smallest candidate current difference value is used as a current difference reference value.

[0018] Optionally, before calculating the average value of the driving current of each display mode to obtain the average current value, the method further includes:

[0019] For each of the display modes, calculating a range of the driving current of the display mode;

[0020] Determine whether the range is greater than a preset range threshold;

[0021] If yes, delete the maximum value and the minimum value of the driving current of the display mode, and return to execute the step of calculating the range of the driving current of the display mode for each of the display modes;

[0022] If not, the step of calculating the average value of the driving current of each display mode to obtain an average current value is performed.

[0023] Optionally, detecting whether the display mode is switched successfully based on the detection period and the switching current difference reference value includes:

[0024] Collecting the driving current of the display panel in the detection period to obtain a first current collected first and a second current collected later;

[0025] Calculating an absolute value of a difference between the first current and the second current to obtain a detection current difference;

[0026] Determining whether the detection current difference is greater than the switching current difference reference value;

[0027] If so, determining that the display mode switching is successful;

[0028] If not, it is determined that the display mode switching fails.

[0029] Optionally, after detecting that the current difference is less than or equal to the switching current difference reference value, the method further includes:

[0030] Using the acquisition time of the second current as the calibration time;

[0031] Within a preset time period after the calibration time, collecting a new driving current to obtain a third current;

[0032] Calculating an absolute value of a difference between the third current and the second current to obtain a new detection current difference;

[0033] Determining whether the new detection current difference is greater than the switching current difference reference value;

[0034] If so, determining that the display mode switching is successful;

[0035] If not, it is determined that the display mode switching fails.

[0036] Optionally, the display panel aging monitoring method further includes:

[0037] During the high-temperature aging process of the display panel, a black screen mode is added after the N specified display modes, and when the display mode is the black screen mode, the corresponding driving current is 0;

[0038] Detecting whether the driving current is less than 1 mA when the display mode is set to the black screen mode;

[0039] If not, it is determined that the display mode switching fails.

[0040] In a second aspect, the present invention provides a display panel aging monitoring device, comprising:

[0041] A data acquisition module, used to acquire the display mode of the display panel during the high temperature aging process and the duration and driving current of each display mode from the historical data of normal high temperature aging;

[0042] A detection period determination module, used to determine the detection period based on the duration of the display mode;

[0043] A current difference reference value calculation module, used for determining the current difference reference value when the display mode is switched based on the change amplitude of the driving current of the display mode;

[0044] A switching judgment module, used for detecting whether the display mode is switched successfully based on the detection cycle and the switching current difference reference value during the high temperature aging process of the display panel; if not, executing the content of the alarm module;

[0045] The alarm module is used to send out an alarm to overhaul the high temperature aging equipment.

[0046] In a third aspect, the present invention provides an electronic device, the electronic device comprising:

[0047] at least one processor; and

[0048] a memory communicatively connected to the at least one processor; wherein,

[0049] The memory stores a computer program executable by the at least one processor, and the computer program is executed by the at least one processor so that the at least one processor can execute the display panel aging monitoring method described in the first aspect of the present invention.

[0050] In a fourth aspect, the present invention provides a computer-readable storage medium storing computer instructions, wherein the computer instructions are used to enable a processor to implement the display panel aging monitoring method described in the first aspect of the present invention when executed.

[0051] The display panel aging control method provided by the embodiment of the present invention obtains the display mode of the display panel during the high-temperature aging process and the duration and driving current of each display mode from the historical data of normal high-temperature aging; determines the current difference reference value when the display mode is switched based on the change amplitude of the driving current of the display mode; determines the detection cycle based on the duration of the display mode; during the high-temperature aging process, detects whether the display mode is switched successfully based on the detection cycle and the switching current difference reference value; if not, issues an alarm. The change amplitude of the driving current can be used to determine the current difference reference value when the display mode is switched, and then the difference value when the display mode is switched is verified by the detection cycle to determine whether the display mode is switched, so that the switching of the display mode during high-temperature aging can be accurately monitored.

[0052] It should be understood that the contents described in this section are not intended to identify the key or important features of the embodiments of the present invention, nor are they intended to limit the scope of the present invention. Other features of the present invention will become easily understood through the following description. BRIEF DESCRIPTION OF THE DRAWINGS

[0053] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0054] Figure 1 is a flow chart of a display panel aging monitoring method provided in Embodiment 1 of the present invention;

[0055] Figure 2 This is a flow chart of a method for display mode switching monitoring provided by Embodiment 1 of the present invention;

[0056] Figure 3 is a structural schematic diagram of a display panel aging monitoring device provided in Embodiment 2 of the present invention;

[0057] Figure 4 It is a schematic diagram of the structure of an electronic device provided in Embodiment 3 of the present invention. DETAILED DESCRIPTION

[0058] In order to enable those skilled in the art to better understand the scheme of the present invention, the technical scheme in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work should fall within the scope of protection of the present invention.

[0059] Generally speaking, high-temperature aging time needs to be more than 4 hours. The method is to place the lit panel in a high-temperature oven, light the panel for a period of time with a forward constant current or a forward pulse current, and then take the panel out of the oven aging environment temperature, and then use a test instrument under normal temperature conditions to measure the parameters of the display panel, and then obtain the aging degree of the panel in the aging environment. Based on this, the quality of the display panel can be improved and the factory quality of the display panel can be guaranteed.

[0060] Embodiment 1

[0061] Figure 1 This is a flow chart of a display panel aging monitoring method provided in the first embodiment of the present invention. This embodiment can be applied to the case of monitoring the display mode of a display panel provided with multiple LED lamp beads during the aging process. The method can be executed by a display panel aging monitoring device. The display panel aging monitoring device can be implemented in the form of hardware and / or software. The display panel aging monitoring device can be configured in an electronic device. Figure 1 As shown, the display panel aging monitoring method includes:

[0062] S101 . Obtain, from historical data of normal high-temperature aging, display modes of a display panel during a high-temperature aging process and a duration and a driving current of each display mode.

[0063] The display panel includes a control circuit and array-arranged lamp beads. The control circuit can control the lamp beads in different positions and different luminous colors to turn on or off to achieve the effect of switching the display mode. The historical data can be collected by connecting a data collector to the control circuit of the display panel. Usually, the data collector can be a triode, which is linked with a computer and other equipment to realize automatic collection of driving current and duration. The display panel can specifically be a display screen of a liquid crystal display.

[0064] Different display modes have different display rules, and the duration and driving current may also be different. For example, in an aging cycle, the cyan mode appears 10 times, with a single duration of 0.1s and a driving current of 11mA. The green gradient mode appears 5 times, with a single duration of 0.1s and a driving current of 7mA.

[0065] S102: Determine a detection period based on the duration of the display mode.

[0066] Specifically, the sum of the duration of each display mode is calculated to obtain the total time consumed by the full mode; the product of the total time consumed by the full mode and the preset ratio is calculated to obtain the detection period. In an optional embodiment, the preset ratio can be less than 1. The advantage of such a setting is that, on the one hand, it is not necessary to frequently detect the driving current of the display mode, and on the other hand, it can avoid switching to the same display mode within two consecutive detection cycles, so that the driving currents of the two display modes are similar and it is impossible to distinguish whether the display mode is successfully switched. Exemplary:

[0067] The total duration of all display modes in a set of detection processes is 300 seconds. The total duration of 300 seconds is set as one total cycle. Multiple total cycles are performed continuously. The detection time point of each display mode in one total cycle is fixed.

[0068] The detection period is assumed to be 210s;

[0069] During the first detection (the first detection cycle), the detection time point is at the 210th second in the first total cycle, and display mode A may be selected at this time. There are 90 seconds left in the first total cycle. During the second detection (the second detection cycle), since 90 seconds are in the first total cycle, the second detection time point is at the 120th second in the second total cycle, and display mode B may be selected at this time. It can be seen that switching to the same display mode in two consecutive detection cycles can be avoided.

[0070] Furthermore, after calculating the detection period, it is determined whether the obtained detection period is less than the preset bad time length, and the bad time length is the standard time length of the display panel that causes the display panel to be bad when the display panel maintains the same display mode in the high-temperature aging equipment. If the obtained detection period is less than the preset bad time length, it is determined that the detection period setting is successful. If the obtained detection period is greater than or equal to the preset bad time length, the difference between the preset bad time length and the preset redundant time length is used as the updated detection period. For example, the preset bad time length is 250s, the obtained detection period is 258s, and the preset redundant time length is 50s, then 200s can be set as the updated detection period. The advantage of such a setting is that when the display panel maintains the same display mode due to a display mode switching failure, it can be detected before the display panel is caused to be bad, thereby improving the success rate of high-temperature aging of the display panel and avoiding wasting aging time and material costs.

[0071] Furthermore, the maximum duration of the display mode can be obtained, and the detection period can be set to be greater than the maximum duration. If the detection period is less than the maximum duration, the driving current may be detected twice during the execution of a certain display mode, and it will be mistakenly judged that the display mode switch failed.

[0072] S103 . Determine a current difference reference value when the display mode is switched based on the variation range of the driving current of the display mode.

[0073] During high-temperature aging, the display modes are executed in a preset order. Under normal circumstances, the driving current of the same display mode is relatively stable, and the variation amplitude of the driving current of different display modes is also relatively fixed. Therefore, the current difference reference value of the driving current when switching between two adjacent display modes can be determined based on the variation amplitude of the driving current.

[0074] In an optional example, the current difference reference value when the display mode is switched is determined based on the change amplitude of the driving current of the display mode, including: for each display mode, calculating the average value of the driving current of the display mode to obtain the average current value; calculating the absolute value of the difference between the average current values ​​of any two display modes to obtain multiple candidate current difference values; and using the smallest candidate current difference value as the current difference reference value. If the smallest candidate current difference value is used as the current difference reference value, when detecting whether the display mode is switched successfully, it is only necessary to detect whether the driving current obtained in two detection cycles is greater than the current difference reference value.

[0075] In another optional example, the current difference reference value when the display mode is switched is determined based on the change amplitude of the driving current of the display mode, including: for each display mode, calculating the average value of the driving current of the display mode to obtain the average current value; calculating the absolute value of the difference between the average current values ​​of any two display modes to obtain multiple candidate current difference values; sorting the candidate current difference values ​​from large to small, and taking the second to last candidate current difference value as the current difference reference value. In this way, the current difference reference value can be further increased, and the failure of display mode switching can be detected more accurately.

[0076] The above method determines the current difference reference value when the display mode is switched based on the change amplitude of the driving current of the display mode, including: for each display mode, calculating the average value of the driving current of the display mode to obtain the average current value, calculating the absolute value of the difference between the average current values ​​of any two display modes to obtain multiple alternative current differences; and taking the smallest alternative current difference as the current difference reference value.

[0077] The average value of the driving current of the display mode is used as the representative value of the driving current of the display mode, and then the absolute value of the difference between the average current values ​​of any two display modes is calculated, which can be adapted to each case;

[0078] Optionally, before calculating the average value of the driving current of the display mode for each display mode to obtain the average current value, it also includes: calculating the range of the driving current of the display mode for each display mode; judging whether the range is greater than a preset range threshold; if so, deleting the maximum and minimum values ​​of the driving current of the display mode, and returning to execute the step of calculating the range of the driving current of the display mode for each display mode; if not, executing the step of calculating the average value of the driving current of the display mode for each display mode to obtain the average current value.

[0079] In the same display mode, the value of the driving current is relatively stable. By calculating the extreme value of the driving current, abnormal values ​​in the driving current can be screened out to avoid the influence of abnormal values ​​on the average value of the driving current, thereby increasing the feasibility and accuracy of detection.

[0080] S104 . During the high-temperature aging process of the display panel, detecting whether the display mode is switched successfully based on the detection cycle and the switching current difference reference value.

[0081] Specifically, detecting whether the display mode is switched successfully is performed based on the detection period and the switching current difference reference value, including: collecting the driving current of the display panel in the detection period to obtain a first current collected first and a second current collected later; calculating the absolute value of the difference between the first current and the second current to obtain a detection current difference; judging whether the detection current difference is greater than the switching current difference reference value; if so, determining that the display mode is switched successfully; if not, determining that the display mode is switched unsuccessfully, and executing S105.

[0082] When the display mode switch fails, the display panel will remain in the same display mode, and the driving current will remain unchanged. Therefore, it is possible to determine whether the display mode has been switched by using the detection current difference of the driving currents detected successively. When the detection current difference is less than or equal to the switching current difference reference value, it is considered that the display mode has not been switched, that is, the switching has failed. When the detection current difference is greater than the switching current difference reference value, it is considered that the display mode has been successfully switched.

[0083] It should be noted here that if the display panel in this step is of the same model as the display panel in S101, the historical data in S101 can be applied to the display mode switching monitoring in this step.

[0084] S105. Send out an alarm to inspect and repair the high temperature aging equipment.

[0085] When a display mode switching failure is detected, an alarm is issued, and the aging equipment can be controlled to stop aging in time, and the aging equipment can be troubleshooted and repaired to avoid display panel defects due to long-term abnormal aging.

[0086] The display panel aging control method provided by the embodiment of the present invention obtains the display mode of the display panel during the high-temperature aging process and the duration and driving current of each display mode from the historical data of normal high-temperature aging; determines the current difference reference value when the display mode is switched based on the change amplitude of the driving current of the display mode; determines the detection cycle based on the duration of the display mode; during the high-temperature aging process, detects whether the display mode is switched successfully based on the detection cycle and the switching current difference reference value; if not, issues an alarm. The change amplitude of the driving current can be used to determine the current difference reference value when the display mode is switched, and then the difference value when the display mode is switched is verified by the detection cycle to determine whether the display mode is switched, so that the switching of the display mode during high-temperature aging can be accurately monitored.

[0087] In order to clearly illustrate the display mode switching monitoring method in the embodiment of the present invention, Figure 2 And the following example to illustrate, Figure 2 A flow chart of a method for switching monitoring of display modes is shown as follows: Figure 2 As shown, the monitoring process includes the following steps:

[0088] S1. Obtain normal historical data.

[0089] The historical data is shown in Table 1 below, where the unit of duration is second (s), and the unit of average current value, absolute value of difference and driving current is mA.

[0090] Table 1. Parameters of display mode during high temperature aging of display panels.

[0091]

[0092] S2. Calculate the total duration of each display mode to obtain the total duration of all modes.

[0093] Calculate the sum of the durations in Table 1, and the total duration of the full mode is 375.5s.

[0094] S3. Calculate the product of the total time consumption of the full mode and the preset ratio to obtain the detection period.

[0095] The preset ratio is 0.6, then the detection period = 375.5s*0.6 = 225.3s.

[0096] S4. For each display mode, calculate the average value of the driving current of the display mode to obtain an average current value.

[0097] Specifically, as shown in the average current value item in Table 1, the average current value is the average of the existing 7 driving currents.

[0098] S5. Calculate the absolute value of the difference between the average current values ​​of any two display modes to obtain multiple candidate current difference values.

[0099] The absolute value of the difference between the average current values ​​is the absolute value of the difference in Table 1, that is, the absolute value of the difference between the current average current value and the next average current value. It should be noted that due to space limitations, Table 1 only gives the absolute value of the difference between two adjacent average current values ​​as an example.

[0100] S6. Use the smallest candidate current difference as a current difference reference value.

[0101] As shown in Table 1, the alternative current difference is the absolute value of the difference, and the smallest alternative current difference is 0.18 mA, so the current difference reference value is 0.18 mA.

[0102] S7. During the high temperature aging process of the display panel, detect whether the display mode is switched successfully based on the detection cycle and the switching current difference reference value; if not, execute S8.

[0103] S8. Issue an alarm to inspect and repair the high-temperature aging equipment.

[0104] In an optional embodiment, after the detection current difference is less than or equal to the switching current difference reference value, it also includes: using the acquisition time of the second current as the calibration time; within a preset time period after the calibration time, acquiring a new drive current to obtain a third current; calculating the absolute value of the difference between the third current and the second current to obtain a new detection current difference; judging whether the new detection current difference is greater than the switching current difference reference value; if so, determining that the display mode switch is successful; if not, determining that the display mode switch has failed.

[0105] In this embodiment, after detecting that the current difference is less than or equal to the switching current difference reference value, the change of the driving current before and after the second current is also detected, because the driving currents of the two display modes detected in the two detection cycles may also be relatively similar. In this case, the absolute value of the difference between the two driving currents may be less than the current difference reference value. Therefore, in order to avoid misjudgment, the method of this embodiment can be used to further verify whether the switching function of the display mode of the aging device is normal. If the switching function is normal, it can be determined that the display mode is switched successfully. If the switching function is abnormal, it can be determined that the display mode is indeed switched unsuccessfully, thereby improving the accuracy of the display mode switching judgment.

[0106] In an optional embodiment, the display panel aging monitoring method further includes:

[0107] During the high-temperature aging process of the display panel, a black screen mode is added after N specified display modes. When the display mode is the black screen mode, the corresponding driving current is 0; it is detected whether the driving current is less than 1mA when the display mode is set to the black screen mode; if not, it is determined that the display mode switching has failed. That is, a specific black screen mode is inserted, and the driving current needs to be collected in this black screen mode, but it is not necessary to collect the driving current in this mode according to the detection cycle. By inserting a specific black screen mode after the specified display mode and verifying whether the driving current value is accurate, it is possible to detect whether the display mode switching function of the aging equipment is normal, and further verify the confirmation result of the above display mode, thereby improving the accuracy of display mode switching monitoring.

[0108] Embodiment 2

[0109] Figure 3 This is a schematic diagram of the structure of a display panel aging monitoring device provided in Embodiment 2 of the present invention. Figure 3 As shown, the display panel aging monitoring device includes:

[0110] The data acquisition module 301 is used to acquire the display mode of the display panel during the high temperature aging process and the duration and driving current of each display mode from the historical data of normal high temperature aging;

[0111] A detection period determination module 302, configured to determine a detection period based on a duration of the display mode;

[0112] A current difference reference value calculation module 303, used for determining the current difference reference value when the display mode is switched based on the change amplitude of the driving current of the display mode;

[0113] The switching judgment module 304 is used to detect whether the display mode is switched successfully based on the detection cycle and the switching current difference reference value during the high temperature aging process of the display panel; if not, the alarm module is executed;

[0114] The alarm module 305 is used to issue an alarm to repair the high temperature aging equipment.

[0115] Optionally, the detection period determination module 302 includes:

[0116] The total time consumption of all modes is calculated as a submodule, which is used to calculate the sum of the duration of each display mode to obtain the total time consumption of all modes;

[0117] The detection period calculation submodule is used to calculate the product of the total time consumption of the full mode and a preset ratio to obtain the detection period, and the preset ratio is less than 1.

[0118] Optionally, the current difference reference value calculation module 303 includes:

[0119] An average current value calculation submodule, used for calculating the average value of the driving current of each display mode to obtain an average current value;

[0120] The alternative current difference calculation submodule is used to calculate the absolute value of the difference between the average current values ​​of any two display modes to obtain multiple alternative current differences;

[0121] The current difference reference value calculation submodule is used to use the smallest candidate current difference value as the current difference reference value.

[0122] Optionally, the current difference reference value calculation module 303 further includes:

[0123] A range calculation submodule, used for calculating the range of the driving current of each display mode;

[0124] The range judgment submodule is used to judge whether the range is greater than a preset range threshold; if so, the content of the deletion submodule is executed; if not, the content of the average current value calculation submodule is executed;

[0125] The deletion submodule is used to delete the maximum value and the minimum value of the driving current of the display mode and return the content of the range calculation submodule.

[0126] Optionally, the switching determination module 304 includes:

[0127] A driving current acquisition submodule, used for acquiring the driving current of the display panel in the detection period to obtain a first current acquired first and a second current acquired later;

[0128] A detection current difference determination submodule, used for calculating the absolute value of the difference between the first current and the second current to obtain a detection current difference;

[0129] The current difference judgment submodule is used to judge whether the detected current difference is greater than the switching current difference reference value; if so, the content of the switching success determination submodule is executed; if not, the content of the switching failure determination submodule is executed;

[0130] A switching success determination submodule is used to determine whether the display mode is switched successfully;

[0131] The switching device determination submodule is used to determine whether the display mode switching fails.

[0132] Optionally, the switching determination module 304 further includes:

[0133] A calibration time determination submodule, configured to use the acquisition time of the second current as the calibration time;

[0134] A third current acquisition submodule, used to acquire a new driving current within a preset time period after the calibration time to obtain a third current;

[0135] A detection current difference updating submodule, used for calculating the absolute value of the difference between the third current and the second current to obtain a new detection current difference;

[0136] The current difference re-judgment submodule is used to judge whether the new detection current difference is greater than the switching current difference reference value; if so, the content of the switching success determination submodule is executed, if not, the content of the switching failure determination submodule is executed.

[0137] Optionally, the display panel aging monitoring device further includes:

[0138] A black screen mode adding module, used for adding a black screen mode after N specified display modes during the high temperature aging process of the display panel, when the display mode is the black screen mode, the corresponding driving current is 0;

[0139] A driving current detection module, used to detect whether the driving current is less than 1 mA when the display mode is set to the black screen mode; if not, the content of the switching failure determination module is executed;

[0140] The switching failure determination module is used to determine whether the display mode switching fails.

[0141] The display panel aging monitoring device provided in the embodiment of the present invention can execute the display panel aging monitoring method provided in any embodiment of the present invention, and has the corresponding functional modules and beneficial effects of the execution method.

[0142] Embodiment 3

[0143] Figure 4 A schematic diagram of the structure of an electronic device 40 that can be used to implement an embodiment of the present invention is shown. The electronic device is intended to represent various forms of digital computers, such as laptop computers, desktop computers, workstations, personal digital assistants, servers, blade servers, mainframe computers, and other suitable computers. The electronic device can also represent various forms of mobile devices, such as personal digital processing, cellular phones, smart phones, wearable devices (such as helmets, glasses, watches, etc.) and other similar computing devices. The components shown herein, their connections and relationships, and their functions are merely examples and are not intended to limit the implementation of the present invention described and / or required herein.

[0144] like Figure 4 As shown, the electronic device 40 includes at least one processor 41, and a memory connected to the at least one processor 41, such as a read-only memory (ROM) 42, a random access memory (RAM) 43, etc., wherein the memory stores a computer program that can be executed by at least one processor, and the processor 41 can perform various appropriate actions and processes according to the computer program stored in the read-only memory (ROM) 42 or the computer program loaded from the storage unit 48 to the random access memory (RAM) 43. In the RAM 43, various programs and data required for the operation of the electronic device 40 can also be stored. The processor 41, the ROM 42, and the RAM 43 are connected to each other through a bus 44. An input / output (I / O) interface 45 is also connected to the bus 44.

[0145] A number of components in the electronic device 40 are connected to the I / O interface 45, including: an input unit 46, such as a keyboard, a mouse, etc.; an output unit 47, such as various types of displays, speakers, etc.; a storage unit 48, such as a disk, an optical disk, etc.; and a communication unit 49, such as a network card, a modem, a wireless communication transceiver, etc. The communication unit 49 allows the electronic device 40 to exchange information / data with other devices through a computer network such as the Internet and / or various telecommunication networks.

[0146] The processor 41 may be a variety of general and / or special processing components with processing and computing capabilities. Some examples of the processor 41 include, but are not limited to, a central processing unit (CPU), a graphics processing unit (GPU), various dedicated artificial intelligence (AI) computing chips, various processors running machine learning model algorithms, a digital signal processor (DSP), and any appropriate processor, controller, microcontroller, etc. The processor 41 performs the various methods and processes described above, such as a display panel aging monitoring method.

[0147] In some embodiments, the display panel aging monitoring method may be implemented as a computer program, which is tangibly contained in a computer-readable storage medium, such as a storage unit 48. In some embodiments, part or all of the computer program may be loaded and / or installed on the electronic device 40 via the ROM 42 and / or the communication unit 49. When the computer program is loaded into the RAM 43 and executed by the processor 41, one or more steps of the display panel aging monitoring method described above may be performed. Alternatively, in other embodiments, the processor 41 may be configured to execute the display panel aging monitoring method in any other appropriate manner (e.g., by means of firmware).

[0148] Various implementations of the systems and techniques described above herein can be implemented in digital electronic circuit systems, integrated circuit systems, field programmable gate arrays (FPGAs), application specific integrated circuits (ASICs), application specific standard products (ASSPs), systems on chips (SOCs), complex programmable logic devices (CPLDs), computer hardware, firmware, software, and / or combinations thereof. These various implementations can include: being implemented in one or more computer programs that can be executed and / or interpreted on a programmable system including at least one programmable processor, which can be a special purpose or general purpose programmable processor that can receive data and instructions from a storage system, at least one input device, and at least one output device, and transmit data and instructions to the storage system, the at least one input device, and the at least one output device.

[0149] Computer programs for implementing the methods of the present invention may be written in any combination of one or more programming languages. These computer programs may be provided to a processor of a general-purpose computer, a special-purpose computer, or other programmable data processing device, so that when the computer program is executed by the processor, the functions / operations specified in the flow chart and / or block diagram are implemented. The computer program may be executed entirely on the machine, partially on the machine, partially on the machine and partially on a remote machine as a stand-alone software package, or entirely on a remote machine or server.

[0150] In the context of the present invention, a computer-readable storage medium may be a tangible medium that may contain or store a computer program for use by or in combination with an instruction execution system, device or equipment. A computer-readable storage medium may include, but is not limited to, electronic, magnetic, optical, electromagnetic, infrared, or semiconductor systems, devices or equipment, or any suitable combination of the foregoing. Alternatively, a computer-readable storage medium may be a machine-readable signal medium. A more specific example of a machine-readable storage medium may include an electrical connection based on one or more lines, a portable computer disk, a hard disk, a random access memory (RAM), a read-only memory (ROM), an erasable programmable read-only memory (EPROM or flash memory), an optical fiber, a portable compact disk read-only memory (CD-ROM), an optical storage device, a magnetic storage device, or any suitable combination of the foregoing.

[0151] To provide interaction with a user, the systems and techniques described herein may be implemented on an electronic device having: a display device (e.g., a CRT (cathode ray tube) or LCD (liquid crystal display) monitor) for displaying information to the user; and a keyboard and a pointing device (e.g., a mouse or trackball) through which the user can provide input to the electronic device. Other types of devices may also be used to provide interaction with the user; for example, the feedback provided to the user may be any form of sensory feedback (e.g., visual feedback, auditory feedback, or tactile feedback); and input from the user may be received in any form (including acoustic input, voice input, or tactile input).

[0152] The systems and techniques described herein may be implemented in a computing system that includes backend components (e.g., as a data server), or a computing system that includes middleware components (e.g., an application server), or a computing system that includes frontend components (e.g., a user computer with a graphical user interface or a web browser through which a user can interact with implementations of the systems and techniques described herein), or a computing system that includes any combination of such backend components, middleware components, or frontend components. The components of the system may be interconnected by any form or medium of digital data communication (e.g., a communication network). Examples of communication networks include: a local area network (LAN), a wide area network (WAN), a blockchain network, and the Internet.

[0153] A computing system may include a client and a server. The client and the server are generally remote from each other and usually interact through a communication network. The client and server relationship is generated by computer programs running on the corresponding computers and having a client-server relationship with each other. The server may be a cloud server, also known as a cloud computing server or cloud host, which is a host product in the cloud computing service system to solve the defects of difficult management and weak business scalability in traditional physical hosts and VPS services.

[0154] It should be understood that the various forms of processes shown above can be used to reorder, add or delete steps. For example, the steps described in the present invention can be executed in parallel, sequentially or in different orders, as long as the desired results of the technical solution of the present invention can be achieved, and this document does not limit this.

[0155] The above specific implementations do not constitute a limitation on the protection scope of the present invention. It should be understood by those skilled in the art that various modifications, combinations, sub-combinations and substitutions can be made according to design requirements and other factors. Any modification, equivalent substitution and improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A display panel aging monitoring method, characterized in that: include: In the historical data of normal high-temperature aging, the display mode of the display panel during the high-temperature aging process and the duration and driving current of each display mode are obtained; Determining a detection period based on the duration of the display mode; Determining a current difference reference value when the display mode is switched based on a change amplitude of the driving current of the display mode; During the high temperature aging process of the display panel, detecting whether the display mode is switched successfully based on the detection cycle and the switching current difference reference value; If not, an alarm is issued to repair the high temperature aging equipment.

2. The display panel aging monitoring method according to claim 1, characterized in that: The determining of the detection period based on the duration of the display mode includes: Calculate the total duration of each display mode to obtain the total duration of all modes; The product of the total time consumption of the full mode and a preset ratio is calculated to obtain a detection period, and the preset ratio is less than 1.

3. The display panel aging monitoring method according to claim 1, characterized in that: The determining of the current difference reference value when the display mode is switched based on the change amplitude of the driving current of the display mode includes: For each of the display modes, calculating an average value of the driving current of the display mode to obtain an average current value; Calculating the absolute value of the difference between the average current values ​​of any two of the display modes to obtain a plurality of candidate current difference values; The smallest candidate current difference value is used as a current difference reference value.

4. The display panel aging monitoring method according to claim 3, characterized in that: Before calculating the average value of the driving current of each display mode to obtain the average current value, the method further includes: For each of the display modes, calculating a range of the driving current of the display mode; Determine whether the range is greater than a preset range threshold; If yes, delete the maximum value and the minimum value of the driving current of the display mode, and return to execute the step of calculating the range of the driving current of the display mode for each of the display modes; If not, the step of calculating the average value of the driving current of each display mode to obtain an average current value is performed.

5. The display panel aging monitoring method according to any one of claims 1 to 4, characterized in that: Detecting whether the display mode is switched successfully based on the detection period and the switching current difference reference value includes: Collecting the driving current of the display panel in the detection period to obtain a first current collected first and a second current collected later; Calculating an absolute value of a difference between the first current and the second current to obtain a detection current difference; Determining whether the detection current difference is greater than the switching current difference reference value; If so, determining that the display mode switching is successful; If not, it is determined that the display mode switching fails.

6. The display panel aging monitoring method according to claim 5, characterized in that: After the detection current difference is less than or equal to the switching current difference reference value, the method further includes: Using the acquisition time of the second current as the calibration time; Within a preset time period after the calibration time, collecting a new driving current to obtain a third current; Calculating an absolute value of a difference between the third current and the second current to obtain a new detection current difference; Determining whether the new detection current difference is greater than the switching current difference reference value; If so, determining that the display mode switching is successful; If not, it is determined that the display mode switching fails.

7. The display panel aging monitoring method according to any one of claims 1 to 4, characterized in that: Also includes: During the high-temperature aging process of the display panel, a black screen mode is added after the N specified display modes, and when the display mode is the black screen mode, the corresponding driving current is 0; Detecting whether the driving current is less than 1 mA when the display mode is set to the black screen mode; If not, it is determined that the display mode switching fails.

8. A display panel aging monitoring device, characterized in that: include: A data acquisition module, used to acquire the display mode of the display panel during the high temperature aging process and the duration and driving current of each display mode from the historical data of normal high temperature aging; A detection period determination module, used to determine the detection period based on the duration of the display mode; A current difference reference value calculation module, used for determining the current difference reference value when the display mode is switched based on the change amplitude of the driving current of the display mode; A switching judgment module, used for detecting whether the display mode is switched successfully based on the detection cycle and the switching current difference reference value during the high temperature aging process of the display panel; if not, executing the content of the alarm module; The alarm module is used to send out an alarm to overhaul the high temperature aging equipment.

9. An electronic device, characterized in that: The electronic device comprises: at least one processor; and a memory communicatively connected to the at least one processor; wherein, The memory stores a computer program executable by the at least one processor, and the computer program is executed by the at least one processor so that the at least one processor can execute the display panel aging monitoring method according to any one of claims 1 to 7.

10. A computer-readable storage medium, characterized in that: The computer-readable storage medium stores computer instructions, and the computer instructions are used to enable a processor to implement the display panel aging monitoring method according to any one of claims 1 to 7 when executed.

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