A video display test method, system and apparatus

Abstract

This invention relates to a video display testing method, system, and apparatus. The method includes: sequentially placing displays from the same batch at multiple test stations; performing an initial test on each test station to identify non-light-leakage test stations and light-leakage test stations, and further dividing the light-leakage test stations into discontinuous light-leakage test stations and continuous light-leakage test stations; performing a time-sharing unified video display test on the displays at the non-light-leakage test stations and a unified video display test on the displays at the discontinuous light-leakage test stations; performing a continuous light-leakage safety distance test on the continuous light-leakage test stations, and grouping the displays at the continuous light-leakage test stations for video display testing based on the tested continuous light-leakage safety distance. This invention addresses the issue of interference caused by mutual light emission from displays by grouping tests, achieving batch testing while minimizing mutual light emission interference between displays, thereby ensuring test accuracy.

Description

Technical Field

[0001] This invention relates to the field of display testing technology, and in particular to a video display testing method, system, and apparatus. Background Technology

[0002] For GPU (Graphics Processing Unit) output testing, such as HDMI / DP / VGA output testing, there are two main existing methods. One is human observation, and the other is analyzing the transmitted data using an HDMI / DP / VGA protocol analyzer. However, both methods have significant drawbacks. The former cannot perform long-term video output stability testing, such as 7 or 10 days. The latter requires corresponding protocol analyzers for different interfaces, which are expensive and cannot achieve batch testing.

[0003] In actual testing, to save manpower and resources, it is necessary to design a system and method for batch testing of monitors for image (video) output. However, during batch testing, interference can easily occur due to the monitors emitting light from each other, leading to inaccurate final test results.

[0004] Therefore, how to overcome the technical problems existing in the prior art and how to avoid interference caused by the mutual emission of light from the displays during batch testing are urgent problems to be solved in this technical field. Summary of the Invention

[0005] One of the objectives of this invention is to overcome the technical problems existing in the prior art and provide a video display testing method, system, and apparatus that performs group testing on situations where the light emitted by displays interferes with each other, thereby minimizing the interference between the light emitted by displays and ensuring test accuracy.

[0006] This invention is implemented as follows:

[0007] In a first aspect, the present invention provides a video display testing method, comprising:

[0008] Multiple monitors are set up at multiple workstations to be tested;

[0009] An initial test was performed on each workstation to determine whether there was no light leakage or light leakage. The workstations with light leakage were then divided into discontinuous light leakage workstations and continuous light leakage workstations.

[0010] The test was conducted in a time-sharing manner on the monitors at the test stations with no light leakage and on the monitors at the test stations with discontinuous light leakage.

[0011] A continuous light leakage safety distance test was conducted on the workstation under test for continuous light leakage, and video display tests were performed on the monitors on the workstation under test for continuous light leakage based on the tested continuous light leakage safety distance.

[0012] Furthermore, each workstation under test is equipped with a photoelectric detection AD module. The initial test performed on each workstation to determine whether there is light leakage or not specifically includes:

[0013] Turn on the monitor at the workstation under test, and use the photoelectric detection AD module at the workstation under test to detect whether the monitor at the workstation under test is working properly;

[0014] If the display at this test station is working normally, then the photoelectric detection AD module at the adjacent test station will detect whether it can sense the light emitted by the display at this test station.

[0015] If the photoelectric detection AD module on the adjacent test station cannot detect the light emitted by the display on the test station, then the corresponding adjacent test station is determined to be a light-free test station; otherwise, the corresponding adjacent test station is determined to be a light-leaking test station.

[0016] Furthermore, the division of the light leakage test station into discontinuous light leakage test stations and continuous light leakage test stations specifically includes:

[0017] If a light-leaking test station is adjacent to a non-light-leaking test station, then the light-leaking test station is classified as a discontinuous light-leaking test station.

[0018] If a light leakage test station is adjacent to another light leakage test station, then the light leakage test station is classified as a continuous light leakage test station.

[0019] Furthermore, the continuous light leakage safety distance test for the continuous light leakage test station specifically includes:

[0020] Start the display on this continuous light leakage test station and use the photoelectric detection AD module on this continuous light leakage test station to detect whether the display on this continuous light leakage test station is working properly;

[0021] If the display at the continuous light leakage test station is working normally, then starting from the adjacent test station, the photoelectric detection AD module at each test station will sequentially detect whether it can sense the light emitted by the display at the continuous light leakage test station.

[0022] When the photoelectric detection AD module at a certain test station fails to detect the light emitted by the display at the continuous light leakage test station for the first time, the distance between the test station and the continuous light leakage test station is determined as the continuous light leakage safety distance of the continuous light leakage test station.

[0023] Preferably, the video display test, which groups the displays at the continuously leaking test station according to the tested continuous light leakage safety distance, specifically includes:

[0024] Obtain the continuous light leakage safety distance of all continuous light leakage test stations, and select the maximum value as the group value;

[0025] Starting from the first continuous light leakage test station, traverse the continuous light leakage test stations where the distance between them is an integer multiple of the grouping value and divide them into a test group to obtain multiple test groups.

[0026] Video display tests were conducted on the monitors of multiple test groups in a time-sharing manner, with each group as a unit.

[0027] Preferably, the video display test, which groups the displays at the continuously leaking test station according to the tested continuous light leakage safety distance, specifically includes:

[0028] Set up a test group, an assigned group, and an unassigned group. All continuous light leakage test stations are initially set in the unassigned group.

[0029] Assignment steps: Move the first continuous light leakage test station in the unassigned group into the assigned group. Traverse backwards from the most recently moved continuous light leakage test station into the assigned group. When the first continuous light leakage test station without light leakage is found, move it into the assigned group. Repeat the backward traversal process of the most recently moved continuous light leakage test station into the assigned group until the last continuous light leakage test station is judged. Then, move the continuous light leakage test stations obtained in this round into an empty test group.

[0030] Repeat the assignment steps until all continuous light leakage test stations have been assigned to obtain multiple test groups;

[0031] Video display tests were conducted on the monitors of multiple test groups in a time-sharing manner, with each group as a unit.

[0032] Furthermore, determining whether there is light leakage includes:

[0033] Determine whether the next continuous light leakage test station is outside the continuous light leakage safety distance of the previous continuous light leakage test station that has been moved into the assigned group;

[0034] If the light leakage is outside the safe distance for continuous light leakage, it is determined that there is no light leakage effect; otherwise, it is determined that there is light leakage effect.

[0035] Furthermore, the video display test includes:

[0036] The video interface module provides video source and image output to the display. The photoelectric detection AD module senses the screen brightness and converts the light signal into a voltage signal. The AD analog-to-digital converter samples the voltage value and converts it into a digital value. The MCU performs logic processing on the converted digital value and controls the display parameters and obtains the current display status according to the DDCCI protocol.

[0037] The video source outputs images and videos of different resolutions through the video interface, sets different features of the Pattern and display brightness value, and the photoelectric detection AD module captures the brightness value changes during the screen display or off process and outputs the corresponding digital signal value. Based on the magnitude of the digital signal value and the duration of the stable state, the MCU performs timing or judgment algorithm processing and outputs the processing result, which is matched and judged with the display status timing value.

[0038] In a second aspect, the present invention provides a video display testing system for implementing the method described in the first aspect. The system includes a test bench, a light leakage testing module, and a video display testing module, wherein:

[0039] The test platform is equipped with a flip cover, and several test stations are evenly spaced inside the test platform for setting up displays for testing. Each test station has an elastic sealing strip with a groove in the middle at a position corresponding to the edge of the display, so that the edge of the display can be inserted into the groove in the middle of the elastic sealing strip. The flip cover also has an elastic sealing strip with a groove in the middle at a position corresponding to the test station, so that when the flip cover is closed, it protects the display and forms a sealed light-blocking state between them. Each test station is also equipped with a photoelectric detection AD module on one side of the display screen to detect the light emission of the display.

[0040] The light leakage test module is used to detect whether each of the workstations under test leaks light and its continuous light leakage safety distance, and to control the video display test module to perform grouped video display tests on the displays of the workstations under test based on the test results.

[0041] Thirdly, the present invention provides a video display testing apparatus, including at least one processor and a memory, wherein the at least one processor and the memory are connected via a data bus, and the memory stores instructions that can be executed by the at least one processor, wherein the instructions, after being executed by the processor, are used to complete the video display testing method described in the first aspect.

[0042] In summary, the beneficial effects of the present invention are as follows:

[0043] This invention provides a video display testing method, system, and apparatus that performs group testing to address situations where interference is caused by the light emitted by displays. This approach enables batch testing while minimizing interference between displays, thereby ensuring test accuracy. Attached Figure Description

[0044] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0045] Figure 1 This is a flowchart of a video display testing method provided in Embodiment 1 of the present invention;

[0046] Figure 2 This is a schematic diagram of the extended process of step 200 provided in Embodiment 1 of the present invention;

[0047] Figure 3 This is a schematic diagram of another part of the extended process of step 200 provided in Embodiment 1 of the present invention;

[0048] Figure 4 This is a schematic diagram of the extended process of step 400 provided in Embodiment 1 of the present invention;

[0049] Figure 5 This is a schematic diagram of a first extended process for another part of step 400 provided in Embodiment 1 of the present invention;

[0050] Figure 6 This is a schematic diagram of a second extended process for another part of step 400 provided in Embodiment 1 of the present invention;

[0051] Figure 7 This is a schematic diagram of the video display test provided in Embodiment 1 of the present invention;

[0052] Figure 8 This is a schematic diagram of the test bench structure of a video display testing system provided in Embodiment 2 of the present invention;

[0053] Figure 9 This is a schematic diagram of the internal setup of the test bench provided in Embodiment 2 of the present invention;

[0054] Figure 10 This is a schematic diagram of the elastic sealing strip structure provided in Embodiment 2 of the present invention;

[0055] Figure 11 This is a schematic diagram of the structure of a video display testing device provided in Embodiment 3 of the present invention. Detailed Implementation

[0056] To make the objectives, technical solutions, and advantages of this invention clearer, the invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the invention.

[0057] This invention is an architecture of a specific functional system. Therefore, the specific embodiments mainly describe the functional logic relationship of each structural module, and do not limit the specific software and hardware implementation methods.

[0058] Furthermore, the technical features involved in the various embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other, and the order of the steps can be changed if they are logical and do not conflict.

[0059] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0060] like Figure 1 As shown in the figure, an embodiment of the present invention provides a video display testing method, which includes the following steps.

[0061] Step 100: Sequentially place the monitors from the same batch onto multiple test stations. In this step of this embodiment of the invention, the number of test stations is not limited and can be set as needed. The distance between each test station is consistent to facilitate subsequent testing.

[0062] Step 200: Perform initial testing on each workstation to determine whether there is light leakage or not, and further divide the workstations with light leakage into discontinuous light leakage workstations and continuous light leakage workstations. In this step of this embodiment of the invention, all workstations to be tested need to be traversed to determine whether there is light leakage and whether the light leakage is continuous, in order to facilitate subsequent group testing.

[0063] Step 300: Perform unified video display tests on the displays at the non-light-leakage test stations and on the displays at the non-discontinuous light-leakage test stations at different times. In this step of the present invention embodiment, the displays at the non-light-leakage test stations are grouped separately for unified batch testing, and then the displays at the non-discontinuous light-leakage test stations are grouped separately for unified batch testing. The two tests are staggered because the displays at the non-light-leakage test stations will not affect each other. Since the non-light-leakage test stations are separated by the non-light-leakage test stations, the displays at the non-discontinuous light-leakage test stations will also not affect each other. Therefore, there will be no light leakage interference among all the tested displays in this step.

[0064] Step 400: Perform a continuous light leakage safety distance test on the continuous light leakage test station, and conduct grouped video display tests on the displays on the continuous light leakage test station based on the tested continuous light leakage safety distance. In this step of the present invention embodiment, because the continuous light leakage test stations can affect each other, they cannot be directly batch tested even if taken out individually. Instead, it is necessary to test the continuous light leakage safety distance before further grouping tests can be conducted based on the continuous light leakage safety distance.

[0065] Through the above steps, this embodiment performs group testing on the situation where the light emitted by the displays interferes with each other. While achieving batch testing, it minimizes the light emission interference between the displays, thereby ensuring the accuracy of the test.

[0066] Specifically, in this embodiment of the invention, each workstation under test is equipped with a photoelectric detection AD module to detect the light emission of the display at the workstation under test.

[0067] like Figure 2 As shown in the embodiment of the present invention, step 200, "performing an initial test on each workstation to be tested and determining the workstations to be tested that do not leak light and the workstations to be tested that leak light", specifically includes the following steps.

[0068] Step 201: Turn on the monitor at the workstation under test and use the photoelectric detection AD module at the workstation under test to check whether the monitor is working properly. This step in this embodiment of the invention is a detection step to check whether the monitor is working properly. If the photoelectric detection AD module does not detect light after turning on the monitor, it means that the monitor is faulty and needs to be marked and reported. Only when the photoelectric detection AD module detects light and determines that the monitor is working properly can the subsequent steps be performed on the monitor at the workstation under test.

[0069] Step 202: If the monitor at the current test station is working normally, then the photoelectric detection AD module at the adjacent test station is used to detect whether the light emitted by the monitor at the current test station can be sensed. In this embodiment of the invention, this step detects whether the test station leaks light when the monitor at the corresponding test station is working normally. Normally, after the monitor is placed at the test station, its edges are sealed (for example, by setting an elastic sealing strip with a groove in the middle, so that the edge of the monitor is inserted into the groove of the elastic sealing strip), so that each monitor forms a sealed light-blocking state. However, because the elastic sealing strip may have problems such as aging or loosening, the sealing effect may fail, which may affect the light emission of other surrounding monitors. Therefore, this embodiment of the invention uses this initial test to determine whether light leakage occurs at each test station.

[0070] Step 203: If the photoelectric detection AD module on the adjacent test station cannot detect the light emitted by the display on this test station, then the corresponding adjacent test station is determined to be a non-leakage test station; otherwise, the corresponding adjacent test station is a light-leakage test station. This step in this embodiment of the invention, based on the light leakage detection in the previous step, separates the light-leakage test stations from the non-leakage test stations to prevent light leakage from affecting performance. In some embodiments, the test stations can be arranged equidistantly side-by-side. When a display is set at each test station in front, the screen of the display faces the test station behind it. Correspondingly, the photoelectric detection AD module on each test station is set on the side facing the screen. In this way, when the display of this test station is turned on and the display of the adjacent test station behind it is turned off, if the photoelectric detection AD module on the adjacent test station behind it can still detect the light emitted by the display of the test station in front, it indicates that there is a problem with the sealing of the display on the adjacent test station behind it, resulting in light leakage. Therefore, this adjacent test station behind it is marked as a light-leakage test station.

[0071] like Figure 3 As shown in the embodiment of the present invention, step 200, "dividing the light leakage test station into discontinuous light leakage test stations and continuous light leakage test stations", specifically includes the following steps.

[0072] Step 211: If the adjacent test station of a certain light leakage test station is a non-light leakage test station, then the light leakage test station is divided into discontinuous light leakage test stations.

[0073] Step 212: If a light leakage test station is adjacent to another light leakage test station, then divide the light leakage test station into continuous light leakage test stations.

[0074] The above steps further subdivide the light leakage test stations. The reason for this subdivision is that light leakage only affects the test stations with continuous light leakage. If a test station does not have continuous light leakage, it means that the test station next to it is a non-light leakage test station. After the non-light leakage test stations have been grouped separately for the convenience of subsequent testing, these non-continuous light leakage test stations can also be grouped together for batch testing. It is only necessary to ensure that the testing of the monitors on the non-light leakage test stations is carried out at different time periods.

[0075] In this embodiment of the invention, for step 300, firstly, based on the previous separation and marking of the light leakage test station and the non-light leakage test station, a unified video display test is performed on the monitors of the non-light leakage test station group. This is because after separating the non-light leakage test station and the light leakage test station, the monitors of the non-light leakage test station will not affect each other, so a unified batch video display test can be directly performed. It should be noted that, after the initial test has identified the light leakage test station and the non-light leakage test station, subsequent batches of monitors can be directly batch-tested on the monitors of the non-light leakage test station according to the separation of the light leakage test station and the non-light leakage test station.

[0076] Of course, as issues such as aging and loosening of the seals will inevitably arise over time, an initial test can only be effective for a limited period, such as one day, one week, or one month. The specific timeframe can be preset based on actual usage needs and frequency. After the preset time has elapsed, the initial test needs to be repeated to re-identify the light leakage test stations and the non-light leakage test stations. After conducting a unified video display test on the monitors at the non-light leakage test stations, turning off those monitors allows for a unified batch test on the monitors at the discontinuous light leakage test stations. The reason why this group of tests does not interfere with each other has been described earlier and will not be repeated here. It should be noted that the determination of discontinuous and continuous light leakage test stations also needs to be re-evaluated periodically, for the same reasons as the determination of light leakage and non-light leakage test stations, and will not be elaborated further.

[0077] like Figure 4 As shown in the embodiment of the present invention, step 400, "continuous light leakage safety distance test on the continuous light leakage test station", specifically includes the following steps.

[0078] Step 401: Turn on the display at this continuous light leakage test station and use the photoelectric detection AD module at this continuous light leakage test station to detect whether the display is working properly. This step in this embodiment of the invention is a detection step to determine whether the display is working properly. If the photoelectric detection AD module does not detect light after turning on the display, it indicates that the display is faulty and needs to be marked and reported. Only when the photoelectric detection AD module detects light and determines that the display is working properly can subsequent steps be performed.

[0079] Step 402: If the display at the continuous light leakage test station is working normally, then starting from the adjacent test stations, sequentially detect whether the light emitted by the display at the continuous light leakage test station can be sensed by the photoelectric detection AD module at each test station. This step in this embodiment of the invention is a continuous light leakage safety distance test step. When setting the distance, for the sake of simplified calculation, the distance between adjacent test stations can be set to 1 (for example, other values ​​are also possible).

[0080] Step 403: When the photoelectric detection AD module at a certain test station fails to detect the light emitted by the display at the continuous light leakage test station for the first time, the distance between the test station and the continuous light leakage test station is the continuous light leakage safety distance of the continuous light leakage test station. In this step of the present invention embodiment, when the photoelectric detection AD module at a certain test station fails to detect the light emitted by the display at that test station for the first time, it indicates that the light leakage effect of that test station no longer exists. Therefore, this distance is set as the continuous light leakage safety distance of the continuous light leakage test station. This means that as long as it is greater than or equal to this distance, there is no light leakage, and if it is less than this distance, there is light leakage. For example, the first and second test stations after the continuous light leakage test station can detect the light leakage effect, but the third test station after it cannot detect the light leakage effect. Then the distance between the continuous light leakage test station and the third test station after it is 3 (taking the distance between adjacent test stations as 1 as an example, all distances below are the same, so it will not be repeated). The continuous light leakage safety distance of the continuous light leakage test station is 3, indicating that the two test stations after it can be affected by light leakage, but the third test station will not be affected by light leakage.

[0081] Understandably, the detection of continuous light leakage safety distance is performed individually for each workstation under test. While the continuous light leakage safety distance of one workstation is being tested, the monitors on other workstations are turned off. It should also be noted that when there are too many workstations under test with continuous light leakage or when the continuous light leakage safety distance is too large—for example, if the number of workstations with continuous light leakage exceeds one-third of all workstations under test, and the continuous light leakage safety distances are generally large—an alarm can be triggered to update the workstations under test, avoiding tedious grouping work.

[0082] like Figure 5 As shown, in one implementation of this invention, step 400, "to perform grouped video display tests on the displays at the continuously leaking test station based on the tested continuous light leakage safety distance," specifically includes the following steps.

[0083] Step 411: Obtain the continuous light leakage safety distance of all continuous light leakage test stations, and select the maximum value as the grouping value.

[0084] Step 412: Starting from the first continuous light leakage test station, traverse the continuous light leakage test stations where the distance between them is an integer multiple of the grouping value and divide them into a test group to obtain multiple test groups.

[0085] Step 413: Perform video display tests on the monitors of multiple test groups in a time-sharing manner, taking each test group as a unit.

[0086] The above steps are illustrated and explained as follows: For example, if the maximum value among all continuous light leakage safety distances is 3, then using 3 as the grouping value, starting from the first continuous light leakage test station, the first continuous light leakage test station, the continuous light leakage test station at a distance of 3, the continuous light leakage test station at a distance of 6, and so on, are added to the first group; then the second continuous light leakage test station (at a distance of 1 from the first continuous light leakage test station) is added to the second group, along with the continuous light leakage test stations at a distance of 3, the continuous light leakage test stations at a distance of 6, and so on; then... The third continuous light leakage test station (distance 2 from the first continuous light leakage test station) is then added to the third group, along with the continuous light leakage test stations at distances of 3, 6, and so on. This process continues, forming a maximum of three groups (the number of groups is determined by the grouping value). It's important to note that not every multiple of the distance corresponds to a continuous light leakage test station. If a station is not continuously leaking light or has no light leakage at all, it can be ignored; simply add the continuously leaking light test station to the group. After grouping, these three groups are tested at different time periods. This ensures that the testing of each continuous light leakage test station meets the continuous light leakage safety distance requirements and does not cause light leakage interference.

[0087] like Figure 6 As shown, in another implementation of the present invention, step 400, "to perform video display testing on the displays at the continuously leaking test station in groups according to the tested continuous light leakage safety distance", specifically includes the following steps.

[0088] Step 421: Set up the test group, assigned group and unassigned group. All continuous light leakage test stations are initially set in the unassigned group.

[0089] Step 422 (Assignment Step): Move the first continuous light leakage test station in the unassigned group into the assigned group. Traverse backwards from the most recently moved continuous light leakage test station into the assigned group. When the first continuous light leakage test station without light leakage influence is found, move it into the assigned group. Repeat the backward traversal process for the most recently moved continuous light leakage test station into the assigned group until the last continuous light leakage test station is determined. Then, move the continuous light leakage test stations obtained in this round into an empty test group. In this step of the embodiment of the invention, the determination of whether there is light leakage influence specifically includes: determining whether the next continuous light leakage test station is outside the continuous light leakage safety distance of the previous continuous light leakage test station moved into the assigned group. If it is outside the continuous light leakage safety distance (meaning greater than or equal to the continuous light leakage safety distance), it is determined to have no light leakage influence; otherwise, it is determined to have light leakage influence.

[0090] Step 423: Repeat the assignment steps until all continuous light leakage test stations have been assigned to obtain multiple test groups.

[0091] Step 424: Perform video display tests on the monitors of multiple test groups in a time-sharing manner, taking each test group as a unit.

[0092] The above steps are illustrated with examples and explanations as follows: For instance, there are five adjacent workstations with continuous light leakage to be tested, designated as positions 1, 2, 3, 4, and 5. Their continuous light leakage safety distances are 2, 3, 2, 2, and 3, respectively. First, all five workstations are added to the unassigned group. Then, the assignment process is performed. Workstation 1 with continuous light leakage to be tested is moved to the assigned group. Because the continuous light leakage safety distance for workstation 1 is 2, the first workstation without light leakage after it is workstation 3. Workstation 3 with continuous light leakage to be tested is also moved to the assigned group. Because the continuous light leakage safety distance for workstation 3 is 2, workstation 5 with continuous light leakage to be tested is also moved to the assigned group. At this point, the continuous light leakage to be tested workstations in the assigned group are positions 1, 3, and 4. Workstation 5 is moved into an empty test group to serve as the first test group. At this point, two workstations with continuous light leakage remain in the unassigned groups: workstations 2 and 4. Since the safe distance for continuous light leakage at workstation 2 is 3 units, workstation 4 would be affected. Therefore, workstation 2 is moved separately into an empty test group to serve as the second test group. Finally, workstation 4 is also moved separately into an empty test group to serve as the third test group. In this iterative grouping process, any two workstations with continuous light leakage that could affect each other will not be placed in the same group. Therefore, during group testing, simply staggering the testing times of each group will prevent any workstation with continuous light leakage from being affected by light leakage.

[0093] In some embodiments, the video display test includes: providing a video source and image output to the display through a video interface module; a photoelectric detection AD module sensing the screen brightness and converting the light signal into a voltage signal; an AD analog-to-digital converter sampling the voltage value and converting it into a digital value; and an MCU performing logical processing on the converted digital value (logical processing includes the magnitude and duration of the digital signal value, and the functional relationship between the digital value and time, used to determine the correlation between resolution, graphics, and brightness). The MCU also controls the display parameters and obtains the current display status according to the DDCCI protocol (the DDCCI protocol is a method for controlling the current status of the display; it can be used to obtain display parameters such as brightness, contrast, resolution, and interface type. It can also control some related parameters, such as brightness and volume adjustment). The video source outputs images and videos of different resolutions through the video interface, setting different characteristic patterns (patterns refer to the graphics displayed on the display; different patterns have different brightness. Associating graphics with resolution increases the number and accuracy of recognizable resolutions) and displaying the results. Brightness values ​​are captured by the photoelectric detection AD module during screen display or shutdown, and the corresponding digital signal values ​​are output. The magnitude of these digital signal values ​​and the duration of stable states are used in the MCU for timing or judgment algorithms (for example, the brightness of a 1080p graphic might be around 100 after AD conversion, while other graphics within the monitored area might have different brightness values, such as 200. The timing of these values ​​represents the continuous display time of the graphics at the current resolution. The final monitored timing matches the actual display time on the monitor, serving as a criterion for determining whether the display is normal). The processed result is then output and matched with the monitor status timing data (the DDCCI protocol provides timing parameters of the current display resolution, serving as an auxiliary criterion for judgment. The resolution information obtained from the monitoring algorithm matches the actual monitor status readings. If the current display is 1080p, the DDCCI will obtain corresponding line and field frequency information in the monitor status. The final judgment criterion is that the video source resolution, the monitoring AD data algorithm result, and the DDCCI monitor status timing result are all identical).

[0094] The above video shows the schematic diagram of the test. Figure 7As shown, the video interface types are industry-standard HDMI / DP / VGA / DVI, the photoelectric detection AD module includes, but is not limited to, a photometric sensor and AD conversion, and the MCU includes, but is not limited to, FPGA / STM32 / microcontroller, etc. The circuit logic and algorithm processing using the above design can achieve precise monitoring of the display, and has good parallelism, enabling synchronous stress testing of multiple workstations under test, as well as long-term image output stability stress testing. It should also be noted that the video testing method provided in this embodiment has undergone version iteration and optimization and has become existing technology. Further upgrades and optimizations may be made as needed in subsequent applications, which will not be elaborated here.

[0095] In summary, the embodiments of the present invention perform group testing on situations where the light emitted by the displays interferes with each other, thereby achieving batch testing while minimizing the light emission interference between the displays and ensuring test accuracy.

[0096] This invention also provides a video display testing system for implementing the method described above. The video display testing system of this invention includes a test bench 1, a light leakage testing module, and a video display testing module.

[0097] Specifically, refer to Figure 8 , Figure 9 , Figure 10 As shown, in this embodiment of the invention, the test platform 1 is provided with a flip cover 2, and a plurality of test stations 3 are arranged at equal intervals inside the test platform 1 for setting up a display 4 for testing. Each test station 3 is provided with an elastic sealing strip 5 with a groove in the middle at a position corresponding to the edge of the display 4, so that the edge of the display 4 can be inserted into the groove in the middle of the elastic sealing strip 5. The flip cover 2 is also provided with an elastic sealing strip 5 with a groove in the middle at a position corresponding to the test station 3, so that when the flip cover 2 is closed, it protects the display 4 and forms a sealed and light-blocking state between them; it should be noted that... Figure 10 This illustration only shows a section of the elastic sealing strip 5. In actual use, the elastic sealing strip 5 on the test station 3 and the flip cover 2 can form a circle to wrap around the edge of the display 4. Each test station 3 is also equipped with a photoelectric detection AD module 6 on one side of the screen surface of the display 4 to detect the light emission of the display 4. Figure 9 For ease of illustration, only a pair of displays 4 and photoelectric detection AD module 6 are shown. In actual use, each test station 3 will be equipped with a pair of displays 4 and photoelectric detection AD module 6.

[0098] In this embodiment of the invention, the light leakage testing module is used to detect whether each of the workstations under test has light leakage and its continuous light leakage safety distance, and controls the video display testing module to perform grouped video display tests on the displays 4 on the workstations under test based on the detection results. In this embodiment, the light leakage testing module and the video display testing module are external components and are not shown in the figures. In specific use, the light leakage testing module is used to perform an initial test on each workstation under test, determine whether there is light leakage or not, and divide the light leakage workstations into discontinuous light leakage workstations and continuous light leakage workstations. The light leakage testing module is also used to perform continuous light leakage safety distance tests on the continuous light leakage workstations. The video display testing module, based on the test results of the light leakage testing module, performs unified video display tests on the displays on the workstations without light leakage and on the displays on the workstations with discontinuous light leakage, and then performs grouped video display tests on the displays on the workstations with continuous light leakage based on the continuous light leakage safety distance. The specific process of the above-described method can be referred to the process described in Example 1, and will not be repeated in this example.

[0099] In summary, the embodiments of the present invention perform group testing to address the interference caused by mutual light emission from displays. This minimizes interference while enabling batch testing, thus ensuring test accuracy. Furthermore, the system described in this embodiment can perform batch testing not only on displays of the same specifications but also on displays of different specifications. For example, if the thickness of a display is less than the thickness of the first batch of tested displays, and assuming the thickness of the first batch of tested displays is exactly the same as the width of the central groove of the elastic sealing strip, the probability of light leakage is definitely the lowest. If the thickness of the next batch of replaced displays is slightly smaller, light leakage may occur, but batch testing can still be performed using the grouping method of Embodiment 1. Only when the number of light leaks and the continuous light leakage safety distance are both too large is it necessary to replace the elastic sealing strip with a new matching one.

[0100] Based on the video display testing method provided in the above embodiments, the present invention also provides a video display testing device that can be used to implement the above method, such as... Figure 11 The diagram shown is a schematic representation of the device architecture according to an embodiment of the present invention. The video display testing device of this embodiment includes one or more processors 21 and a memory 22. Figure 11 Take a processor 21 as an example.

[0101] Processor 21 and memory 22 can be connected via a bus or other means. Figure 11 Taking the example of a connection between China and Israel via a bus.

[0102] The memory 22, as a non-volatile computer-readable storage medium, can be used to store non-volatile software programs, non-volatile computer-executable programs, and modules, such as the video display testing method in Embodiment 2. The processor 21 executes various functional applications and data processing of the video display testing device by running the non-volatile software programs, instructions, and modules stored in the memory 22, thereby realizing the video display testing method as described above.

[0103] Memory 22 may include high-speed random access memory, and may also include non-volatile memory, such as at least one disk storage device, flash memory device, or other non-volatile solid-state storage device. In some embodiments, memory 22 may optionally include memory remotely located relative to processor 21, which can be connected to processor 21 via a network. Examples of such networks include, but are not limited to, the Internet, intranets, local area networks, mobile communication networks, and combinations thereof.

[0104] The program instructions / modules are stored in memory 22. When executed by one or more processors 21, they perform the video display test method described above, for example, the method described above. Figures 1 to 6 The steps shown.

[0105] Those skilled in the art will understand that all or part of the steps in the various methods of the embodiments can be implemented by a program instructing related hardware. The program can be stored in a computer-readable storage medium, which may include: read-only memory (ROM), random access memory (RAM), disk or optical disk, etc.

[0106] The above description is merely a preferred embodiment of the present invention and is not intended to limit the invention. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention should be included within the scope of protection of the present invention. Contents not described in detail in this specification are prior art known to those skilled in the art.

Claims

1. A video display testing method, characterized in that, include: Multiple monitors are set up at multiple workstations to be tested; An initial test was performed on each workstation to determine whether there was no light leakage or light leakage. The workstations with light leakage were then divided into discontinuous light leakage workstations and continuous light leakage workstations. The test was conducted in a time-sharing manner on the monitors at the test stations with no light leakage and on the monitors at the test stations with discontinuous light leakage. A continuous light leakage safety distance test was conducted on the workstation under test for continuous light leakage, and a grouped video display test was conducted on the monitors on the workstation under test for continuous light leakage based on the tested continuous light leakage safety distance. Each workstation under test is equipped with a photoelectric detection AD module. When the display at the workstation under test is turned on, the photoelectric detection AD module at the workstation under test will detect whether the display at the workstation under test is working properly. If the display at this test station is working normally, then the photoelectric detection AD module at the adjacent test station will detect whether it can sense the light emitted by the display at this test station; if the photoelectric detection AD module at the adjacent test station cannot sense the light emitted by the display at this test station, then the corresponding adjacent test station is determined to be a light-free test station; otherwise, the corresponding adjacent test station is determined to be a light-leaking test station. The process of dividing the light leakage test station into discontinuous light leakage test stations and continuous light leakage test stations includes: if the adjacent test station of a certain light leakage test station is a non-light leakage test station, then the light leakage test station is divided into a discontinuous light leakage test station; if the adjacent test station of a certain light leakage test station is a light leakage test station, then the light leakage test station is divided into a continuous light leakage test station. The continuous light leakage safety distance test for the continuous light leakage test station includes: activating the display on the continuous light leakage test station, and detecting whether the display on the continuous light leakage test station is working properly through the photoelectric detection AD module on the continuous light leakage test station; if the display on the continuous light leakage test station is working properly, then starting from the adjacent test station, sequentially detecting whether the light emitted by the display on the continuous light leakage test station can be sensed through the photoelectric detection AD module on each test station; when the photoelectric detection AD module on a certain test station fails to sense the light emitted by the display on the continuous light leakage test station for the first time, the distance between the test station and the continuous light leakage test station is determined as the continuous light leakage safety distance of the continuous light leakage test station.

2. The video display testing method according to claim 1, characterized in that, The video display test, which groups the displays at the continuously leaking workstations according to the tested continuous light leakage safety distance, includes: Obtain the continuous light leakage safety distance of all continuous light leakage test stations, and select the maximum value as the group value; Starting from the first continuous light leakage test station, traverse the continuous light leakage test stations where the distance between them is an integer multiple of the grouping value and divide them into a test group to obtain multiple test groups. Video display tests were conducted on the monitors of multiple test groups in a time-sharing manner, with each group as a unit.

3. The video display testing method according to claim 1, characterized in that, The video display test, which groups the displays at the continuously leaking workstations according to the tested continuous light leakage safety distance, includes: Set up a test group, an assigned group, and an unassigned group. All continuous light leakage test stations are initially set in the unassigned group. Assignment steps: Move the first continuous light leakage test station in the unassigned group into the assigned group. Traverse backwards from the most recently moved continuous light leakage test station into the assigned group. When the first continuous light leakage test station without light leakage is found, move it into the assigned group. Repeat the backward traversal process of the most recently moved continuous light leakage test station into the assigned group until the last continuous light leakage test station is judged. Then, move the continuous light leakage test stations obtained in this round into an empty test group. Repeat the assignment steps until all continuous light leakage test stations have been assigned to obtain multiple test groups; Video display tests were conducted on the monitors of multiple test groups in a time-sharing manner, with each group as a unit.

4. The video display testing method according to claim 3, characterized in that, Determining whether there is light leakage includes: Determine whether the next continuous light leakage test station is outside the continuous light leakage safety distance of the previous continuous light leakage test station that has been moved into the assigned group; If the light leakage is outside the safe distance for continuous light leakage, it is determined that there is no light leakage effect; otherwise, it is determined that there is light leakage effect.

5. The video display testing method according to any one of claims 1-4, characterized in that, The video display test includes: The video interface module provides video source and image output to the display. The photoelectric detection AD module senses the screen brightness and converts the light signal into a voltage signal. The AD analog-to-digital converter samples the voltage value and converts it into a digital value. The MCU performs logic processing on the converted digital value and controls the display parameters and obtains the current display status according to the DDCCI protocol. The video source outputs images and videos of different resolutions through the video interface, sets different features of the Pattern and display brightness value, and the photoelectric detection AD module captures the brightness value changes during the screen display or off process and outputs the corresponding digital signal value. Based on the magnitude of the digital signal value and the duration of the stable state, the MCU performs timing or judgment algorithm processing and outputs the processing result, which is matched and judged with the display status timing value.

6. A video display testing system for implementing the video display testing method as described in any one of claims 1-5, characterized in that, This includes a test bench, a light leakage test module, and a video display test module, among which: The test platform is equipped with a flip cover, and several test stations are evenly spaced inside the test platform for setting up displays for testing. Each test station has an elastic sealing strip with a groove in the middle at a position corresponding to the edge of the display, so that the edge of the display can be inserted into the groove in the middle of the elastic sealing strip. The flip cover also has an elastic sealing strip with a groove in the middle at a position corresponding to the test station, so that when the flip cover is closed, it protects the display and forms a sealed light-blocking state between them. Each test station is also equipped with a photoelectric detection AD module on one side of the display screen to detect the light emission of the display. The light leakage test module is used to detect whether each of the workstations under test leaks light and its continuous light leakage safety distance, and to control the video display test module to perform grouped video display tests on the displays on the workstations under test based on the test results. Each workstation under test is equipped with a photoelectric detection AD module. The initial test of each workstation under test to determine whether it is a light-leakage workstation or a light-leakage workstation includes: activating the display at the workstation under test and using the photoelectric detection AD module at that workstation to detect whether the display is working properly; if the display at that workstation is working properly, then using the photoelectric detection AD module at the adjacent workstation under test to detect whether it can sense the light emitted by the display at that workstation under test; if the photoelectric detection AD module at the adjacent workstation under test cannot sense the light emitted by the display at that workstation under test, then the corresponding adjacent workstation under test is determined to be a light-leakage workstation; otherwise, the corresponding adjacent workstation under test is determined to be a light-leakage workstation. The process of dividing the light leakage test station into discontinuous light leakage test stations and continuous light leakage test stations includes: if the adjacent test station of a certain light leakage test station is a non-light leakage test station, then the light leakage test station is divided into a discontinuous light leakage test station; if the adjacent test station of a certain light leakage test station is a light leakage test station, then the light leakage test station is divided into a continuous light leakage test station. The continuous light leakage safety distance test for the continuous light leakage test station includes: activating the display on the continuous light leakage test station, and detecting whether the display on the continuous light leakage test station is working properly through the photoelectric detection AD module on the continuous light leakage test station; if the display on the continuous light leakage test station is working properly, then starting from the adjacent test station, sequentially detecting whether the light emitted by the display on the continuous light leakage test station can be sensed through the photoelectric detection AD module on each test station; when the photoelectric detection AD module on a certain test station fails to sense the light emitted by the display on the continuous light leakage test station for the first time, the distance between the test station and the continuous light leakage test station is determined as the continuous light leakage safety distance of the continuous light leakage test station.

7. A video display testing device, characterized in that: It includes at least one processor and a memory, which are connected via a data bus. The memory stores instructions that can be executed by the at least one processor. After being executed by the processor, the instructions are used to perform the video display test method according to any one of claims 1-5.

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