Test method and device of display equipment, terminal equipment and computer program product

Abstract

The invention discloses a test method and device of display equipment, terminal equipment and a computer program product, and the method comprises the steps: obtaining the real-time voltage data of a test image displayed by the display equipment, determining a first frame of test image according to the real-time voltage data, and determining the test image displayed by the display equipment at the moment when the voltage changes for the first time. By determining the first frame brightness data of the first frame test image and determining the steady-state brightness data of the display device, the first frame brightness data is the brightness data of the first frame test image displayed by the display device, and the steady-state brightness data of the first frame test image displayed by the display device is determined. The steady-state brightness data is the brightness data when the brightness change is smaller than the brightness change threshold in the process of displaying the test image by the display equipment, and then the test result of the display equipment is determined according to the first frame brightness data and the steady-state brightness data, so that the accuracy of carrying out the smear test on the display equipment can be improved; and the reliability of the display equipment is improved.

Description

Technical Field

[0001] The present application belongs to the field of display technology, and in particular, relates to a testing method, apparatus, terminal equipment and computer program product for a display device. Background Art

[0002] With the rapid development of display devices, the functions of various display devices will become more and more abundant and the performance will become more and more powerful. At present, in order to ensure the display quality of display devices and meet the application needs of users in different scenarios, it is necessary to perform quality inspection on display devices, including smear test on display devices.

[0003] Specifically, the smear test is to evaluate the performance of the display device when displaying multiple test frames. However, when performing the smear test on the display device, there is a possibility that the smear test will be misjudged due to the low brightness of the first test frame, which reduces the accuracy of the smear test on the display device and thus reduces the reliability of the display device. Summary of the invention

[0004] The display device testing method, apparatus, terminal device and computer program product provided in the embodiments of the present application are intended to solve the existing problem of misjudgment of the smear test due to the low brightness of the first frame test image, the low accuracy of the smear test and the low reliability of the display device.

[0005] In a first aspect, an embodiment of the present application provides a method for testing a display device, the method comprising:

[0006] Acquire real-time voltage data of a display device displaying a test image, and determine a first frame of the test image based on the real-time voltage data;

[0007] Determine the first frame brightness data of the first frame test image, and determine the steady-state brightness data of the display device; wherein the first frame brightness data is the brightness data of the display device displaying the first frame test image, and the steady-state brightness data is the brightness data when the brightness change of the display device in the process of displaying the test image is less than a preset brightness change threshold;

[0008] A test result of the display device is determined according to the first frame brightness data and the steady-state brightness data.

[0009] In a possible implementation manner of the first aspect, determining a first frame test image according to the real-time voltage data includes:

[0010] Determine a first voltage change time according to the real-time voltage data; wherein the first voltage change time is the time when the voltage of the display device changes for the first time when the test image is displayed;

[0011] At least two test image frames displayed by the display device are collected, and the test image collected at the first voltage change moment is determined as the first test image frame.

[0012] In a possible implementation manner of the first aspect, determining the steady-state brightness data of the display device includes:

[0013] Determining a display period of each frame of the test image according to the real-time voltage data;

[0014] Acquire real-time brightness data of the display device, and determine the brightness change amount of each display period according to the real-time brightness data;

[0015] A target display period in which the brightness change amount is less than the brightness change threshold is determined, and average brightness data of the target display period is determined as steady-state brightness data.

[0016] In a possible implementation manner of the first aspect, determining first-frame brightness data of the first-frame test image includes:

[0017] The brightness data at the moment when the first voltage changes is determined from the real-time brightness data as the first frame brightness data corresponding to the first frame test image.

[0018] In a possible implementation manner of the first aspect, determining a test result of the display device according to the first frame brightness data and the steady-state brightness data includes:

[0019] Determining a test brightness ratio of the display device according to the first frame brightness data and the steady-state brightness data;

[0020] Based on the test brightness ratio, a test result of the display device is generated.

[0021] In a possible implementation manner of the first aspect, the display device includes at least one display area, and acquiring real-time voltage data of a test image displayed by the display device includes:

[0022] Acquire real-time voltage data of each display area in the display device displaying the test image;

[0023] The determining of the first frame brightness data of the first frame test image and the determining of the steady-state brightness data of the display device comprises:

[0024] Determine the first frame brightness data of each of the display areas displaying the first frame test image, and determine the steady-state brightness data of each of the display areas.

[0025] In a possible implementation manner of the first aspect, determining the test brightness ratio of the display device according to the first frame brightness data and the steady-state brightness data includes:

[0026] Determine a test brightness ratio of each display area according to the first frame brightness data of each display area and the steady-state brightness data of each display area;

[0027] The step of generating a test result of the display device based on the test brightness ratio includes:

[0028] A test result of the display device is generated based on the test brightness ratio of each of the display areas.

[0029] In a possible implementation manner of the first aspect, the test image includes a white screen test image and a color test image of at least two colors, the test brightness ratio includes a test brightness ratio of the color test image and a test brightness ratio of the white screen test image, and generating a test result of the display device based on the test brightness ratio includes:

[0030] A test result of the display device is generated according to the test brightness ratio of the color test image and the test brightness ratio of the white screen test image.

[0031] In a possible implementation manner of the first aspect, generating a test result of the display device according to a test brightness ratio of the color test image and a test brightness ratio of the white screen test image includes:

[0032] Determining a test brightness difference between each of the color test images according to a test brightness ratio of each of the color test images;

[0033] When the test brightness ratio of the white screen test image is greater than or equal to a preset first brightness ratio, and the test brightness difference is less than or equal to a preset second brightness ratio, determining that the test result of the display device is qualified;

[0034] When the test brightness ratio of the white screen test image is less than the first brightness ratio, and the test brightness difference is greater than the second brightness ratio, it is determined that the test result of the display device is unqualified.

[0035] In a possible implementation manner of the first aspect, determining the first voltage change time according to the real-time voltage data includes:

[0036] Determine the voltage change value between any two consecutive moments of real-time voltage data according to the real-time voltage data;

[0037] When the voltage change value is greater than or equal to a preset voltage change threshold, the time corresponding to the voltage change value is recorded as the voltage change time, and the earliest recorded voltage change time is determined as the first voltage change time.

[0038] In a possible implementation manner of the first aspect, acquiring real-time voltage data of a test image displayed by a display device includes:

[0039] Acquiring real-time voltage data collected by an oscilloscope when the display device displays the test image;

[0040] The acquiring real-time brightness data of the display device comprises:

[0041] Acquire real-time brightness data of the display device when displaying the test image, collected by a photoelectric converter;

[0042] The real-time voltage data of the test image and the real-time brightness data of the test image are time-aligned.

[0043] In a possible implementation manner of the first aspect above, the display device includes at least one refresh rate, and the test result of the display device includes a test result generated by the display device at each refresh rate.

[0044] In a second aspect, an embodiment of the present application provides a testing device for a display device, the device comprising:

[0045] An acquisition module, used to acquire real-time voltage data of a display device displaying a test image, and determine a first frame of the test image according to the real-time voltage data;

[0046] A determination module, used to determine the first frame brightness data of the first frame test image, and to determine the steady-state brightness data of the display device; wherein the first frame brightness data is the brightness data of the display device displaying the first frame test image, and the steady-state brightness data is the brightness data when the brightness change of the display device in the process of displaying the test image is less than a preset brightness change threshold;

[0047] A testing module is used to determine a test result of the display device according to the first frame brightness data and the steady-state brightness data.

[0048] In a third aspect, an embodiment of the present application provides a terminal device, comprising a memory, a processor, and a computer program stored in the memory and executable on the processor, wherein when the processor executes the computer program, the test method for the display device provided in the first aspect above is implemented.

[0049] In a fourth aspect, an embodiment of the present application provides a computer program product, including a computer program. When the computer program is run on a computer, the computer executes the test method for the display device provided in the first aspect.

[0050] In a fifth aspect, an embodiment of the present application provides a computer-readable storage medium, wherein the computer-readable storage medium stores a computer program, and when the computer program is executed by a processor, the test method for the display device provided in the first aspect above is implemented.

[0051] It can be understood that the beneficial effects of the second to fourth aspects mentioned above can be found in the relevant description of the first aspect mentioned above, and will not be repeated here.

[0052] Compared with the prior art, the embodiments of the present invention have the following beneficial effects:

[0053] In an embodiment of the present application, by acquiring real-time voltage data of a test image displayed by a display device, and determining a first-frame test image based on the real-time voltage data, the test image displayed by the display device at the moment when the first voltage changes can be determined, thereby reducing the misjudgment of the first-frame image due to the low brightness of the test image. By determining the first-frame brightness data of the first-frame test image and the steady-state brightness data of the display device, the first-frame brightness data is the brightness data of the display device displaying the first-frame test image, and the steady-state brightness data is the brightness data when the brightness change of the display device during the process of displaying the test image is less than a brightness change threshold, the test result of the display device can be determined based on the first-frame brightness data and the steady-state brightness data determined by the real-time voltage data, thereby improving the accuracy of the ghosting test on the display device and improving the reliability of the display device. BRIEF DESCRIPTION OF THE DRAWINGS

[0054] Figure 1 is a flowchart of a method for testing a display device provided by an embodiment of the present application;

[0055] Figure 2 is a schematic diagram of real-time voltage data and real-time brightness data provided by an embodiment of the present application;

[0056] Figure 3 is a flowchart of another method for testing a display device provided by an embodiment of the present application;

[0057] Figure 4 is a schematic diagram of a display area provided by an embodiment of the present application;

[0058] Figure 5 It is a structural diagram of a display data processing device provided by an embodiment of the present application;

[0059] Figure 6 It is a structural block diagram of a terminal device provided in one embodiment of the present application. DETAILED DESCRIPTION

[0060] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present application more clearly understood, the present application is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application and are not used to limit the present application.

[0061] With the rapid development of display devices, the functions of various display devices will become more and more abundant and the performance will become more and more powerful. At present, in order to ensure the display quality of display devices and meet the application needs of users in different scenarios, it is necessary to perform quality inspection on display devices, including smear test on display devices.

[0062] At present, display devices have a ghosting phenomenon when displaying images. The ghosting phenomenon is manifested as the response time of the display device is too long when switching images, resulting in a long response time for the pixel points in the display device to switch colors, which in turn causes the phenomenon of the previous frame image residue, making it difficult to ensure the clarity and smoothness of the displayed image when the display device displays dynamic images, affecting the user experience. Based on this, in order to reduce the occurrence of the ghosting phenomenon, it is necessary to perform a ghosting test on the display device, and optimize the display device according to the results of the ghosting test, so as to reduce the ghosting phenomenon of the display device and meet the application needs of the user.

[0063] Specifically, the smear test is to collect the brightness of the display device when it continuously switches between different test images, and evaluate the performance of the display device when it continuously displays multiple frames of test images based on the brightness of each test image. Usually, the smear situation of the display device can be evaluated by collecting the brightness of the first test image after the display device switches the test image, and based on the brightness of the first test image and the brightness of the display device when it stably displays the test image.

[0064] However, when performing a ghosting test on a display device, it may be difficult to identify the first-frame test image due to the low brightness of the first-frame test image, and a non-first-frame test image may be determined as the first-frame test image, that is, there is a misjudgment of the first-frame test image, which in turn leads to a misjudgment of the ghosting test, reducing the accuracy of the ghosting test on the display device, thereby increasing the probability of the display device exhibiting ghosting and reducing the quality of the display device.

[0065] Based on this, the present application provides a test method, apparatus, terminal device and computer program product for a display device. By acquiring real-time voltage data of a test image displayed by the display device, and determining a first-frame test image based on the real-time voltage data, the test image displayed by the display device at the moment when the first voltage changes can be determined, thereby reducing the misjudgment of the first-frame image due to the low brightness of the test image. By determining the first-frame brightness data of the first-frame test image and the steady-state brightness data of the display device, the first-frame brightness data is the brightness data of the display device displaying the first-frame test image, and the steady-state brightness data is the brightness data when the brightness change of the display device during the process of displaying the test image is less than a brightness change threshold, the test result of the display device can be determined based on the first-frame brightness data and the steady-state brightness data determined by the real-time voltage data, thereby improving the accuracy of the ghosting test on the display device.

[0066] See also Figure 1 , Figure 1 A flowchart of a method for testing a display device provided by an embodiment of the present application is shown, which may specifically include the following steps:

[0067] Step 101, obtaining real-time voltage data of a display device displaying a test image, and determining a first frame of the test image according to the real-time voltage data.

[0068] Among them, the display device can be any device that can display images, such as a display panel, a mobile terminal device with a display screen, a computer including multiple display modules, a television with a display screen and other devices; the test image can be an image used for performing a smear test; the types of test images can be test images of different colors, test images of different resolutions, such as an image of a white screen, images of the same color but different resolutions; the real-time voltage data can be the real-time voltage of the display device at each moment in the process of displaying the test image; and the first frame test image can be the first frame image of the display device when displaying the test image.

[0069] In practical applications, a smear test may be performed on a display device, and a test image may be displayed on the display device to collect a real-time voltage of the display device when the test image is displayed.

[0070] It should be understood that the display device usually applies voltage to the liquid crystal molecules to adjust the light transmittance of the liquid crystal molecules, or applies voltage to the organic material to make the organic material emit light autonomously and adjust the luminous intensity and color of the autonomous light, that is, the corresponding voltage can be applied to the display device to make the display device emit light to display the corresponding image. Based on this, the voltage of the display device when displaying the test image can be collected, specifically, it can be the voltage that drives the display panel in the display device to display the image, and the display device displaying different test images can correspond to different voltages, and then the real-time voltage of the display device displaying different test images can be collected, that is, the real-time voltage data.

[0071] After the real-time voltage data is obtained, the first frame image when the display device displays the test image, that is, the first frame test image, can be determined according to the real-time voltage data.

[0072] In one embodiment of the present application, the following steps may be used to determine the first frame test image according to the real-time voltage data in step 101:

[0073] According to the real-time voltage data, a first voltage change time is determined, at least two test image frames displayed by the display device are collected, and the test image collected at the first voltage change time is determined as the first test image frame.

[0074] Among them, the first voltage change moment can be the moment when the voltage of the display device changes for the first time when displaying the test image. Exemplarily, it can be achieved by detecting whether there is a rising edge or a falling edge based on the real-time voltage data, and determining the moment when the rising edge or the falling edge occurs, that is, the moment when the voltage of the display device changes when displaying the test image, including the moment of the first change.

[0075] In practical applications, at least two frames of test images displayed by the display device can be captured in real time, and after obtaining real-time voltage data, the moment when the voltage of the display device first changes when displaying the test image can be determined from the real-time voltage data, that is, the first voltage change moment, and the test image captured at the first voltage change moment can be determined as the first frame of the test image among the at least two frames of test images captured.

[0076] It should be understood that when the display device displays the same image, the voltage applied to it remains unchanged, but when it switches to display another image, the voltage applied to it changes. The moment when the voltage changes can be determined from the collected real-time voltage data, and then it can be determined that the display device performs the operation of switching the displayed image at that moment, and it can be determined that the test image displayed by the display device at that moment is the test image displayed after performing the image switching operation, that is, the image displayed by the display device at that moment is the first frame of the test image after performing the image switching operation.

[0077] In a specific implementation, whether the display device has performed an operation of switching images is determined by determining whether the real-time voltage of the display device has changed. Thus, when the real-time voltage of the display device changes, it can be determined that the display device has performed an operation of switching images, and the image displayed by the display device at that moment is determined to be the first-frame test image, thereby improving the accuracy of identifying the first-frame test image and thereby improving the accuracy of the ghosting test on the display device.

[0078] In an embodiment of the present application, the following steps may be used to determine the first voltage change time according to the real-time voltage data:

[0079] According to the real-time voltage data, the voltage change value between the real-time voltage data at any two consecutive moments is determined. When the voltage change value is greater than or equal to a preset voltage change threshold, the moment corresponding to the voltage change value is recorded as the voltage change moment, and the earliest recorded voltage change moment is determined as the first voltage change moment.

[0080] The voltage change value may be a voltage change value at different moments, and the voltage change threshold may be a user-defined value or a value obtained based on experience.

[0081] After obtaining the real-time voltage data, the difference between the real-time voltage data at any two moments can be determined, that is, the voltage change value at the two consecutive moments. When the voltage change value at any two consecutive moments is greater than or equal to a preset voltage change threshold, it can be determined that the real-time voltage of the display device has changed, and any moment between any two consecutive moments corresponding to the voltage change value can be determined as the voltage change moment.

[0082] For example, at 19:00 the real-time voltage data of the display device is 1V, and at the next moment 19:01 the real-time voltage data of the display device is 1.2V, then it can be determined that the voltage change value from 19:00 to 19:01 is 0.2V, and the voltage change threshold can be set to 0.1V, then it can be determined that the voltage change value from 19:00 to 19:01 is greater than the voltage change threshold, and it is determined that the real-time voltage of the display device from 19:00 to 19:01 changes, and then any moment from 19:00 to 19:01 can be determined as a voltage change moment, such as determining 19:01 as the voltage change moment.

[0083] Generally, the later moment of any two consecutive moments corresponding to the voltage change values ​​can be determined as the voltage change moment.

[0084] After each voltage change moment is obtained, each voltage change moment may be recorded, and the earliest recorded voltage change moment among all voltage change moments may be determined as the first voltage change moment.

[0085] In an embodiment of the present application, the real-time voltage data of the display device displaying the test image can be obtained in the following manner:

[0086] Get the real-time voltage data collected by the oscilloscope when the display device displays the test image.

[0087] Among them, the oscilloscope can be an electronic measuring instrument for collecting and measuring the changes of electrical signals over time, and can determine the corresponding parameters such as amplitude, frequency, phase, etc. from the collected electrical signals.

[0088] In practical applications, an oscilloscope can be connected to a display device, so that the oscilloscope can collect electrical signals from the display device when it displays a test image. The electrical signals may include voltage data, current data and other data of the display device, that is, real-time voltage data collected by the oscilloscope when the display device displays a test image can be obtained.

[0089] Step 102, determining the first frame brightness data of the first frame test image, and determining the steady-state brightness data of the display device.

[0090] Among them, the first frame brightness data can be the brightness data of the first frame test image displayed by the display device, and the steady-state brightness data can be the brightness data when the brightness change of the display device during the display of the test image is less than a preset brightness change threshold. The brightness change threshold can be a user-defined value or a value obtained based on experience.

[0091] After obtaining the first frame test image, light sensors, brightness measuring instruments and other equipment may be used to collect the brightness of the display device when displaying the first frame test image, which is the first frame brightness data.

[0092] In practical applications, light sensors, brightness measuring instruments and other devices can be used to continuously collect the brightness of the display device when it displays a test image, and then the brightness collected by light sensors, brightness measuring instruments and other devices at the first voltage change moment can be retrieved, which is the first frame brightness data.

[0093] At the same time, based on the brightness collected by light sensors, brightness measuring instruments and other devices, the brightness that tends to be stable when the display device displays the test image can be determined, that is, the brightness when the brightness change of the display device during the display of the test image is less than the preset brightness change threshold is determined as steady-state brightness data.

[0094] In an embodiment of the present application, the first frame brightness data of the first frame test image in step 102 may be determined by the following steps:

[0095] The brightness data at the first voltage change moment is determined from the real-time brightness data as the first frame brightness data corresponding to the first frame test image.

[0096] The real-time brightness data may be the real-time brightness of the display device at each moment in the process of displaying the test image.

[0097] In a specific implementation, light sensors, brightness measuring instruments and other equipment can be used to continuously collect the brightness of the display device at each moment in the process of displaying a test image to obtain real-time brightness data of the display device, and then it can be determined from the real-time brightness data that the brightness data collected at the first voltage change moment is the first frame brightness data corresponding to the first frame test image.

[0098] It should be understood that since the first frame test image is the test image displayed by the display device at the first voltage change moment, the brightness data collected at the first voltage change moment is the brightness data of the first frame test image.

[0099] In an embodiment of the present application, the following steps may be used to determine the steady-state brightness data of the display device in step 102:

[0100] According to the real-time voltage data, the display period of each frame of the test image is determined, the real-time brightness data of the display device is obtained, and the brightness change in each display period is determined according to the real-time brightness data, and the target display period in which the brightness change is less than the brightness change threshold is determined, and the average brightness data of the target display period is determined as the steady-state brightness data.

[0101] The display period may be a time period in which the display device displays the same image, and the brightness change amount may be a brightness change amount of the image displayed by the display device during the display period.

[0102] After the real-time voltage data is obtained, the display period during which the display device displays each test image may be determined.

[0103] In practical applications, in order to improve the accuracy of the ghosting test, at least one test image can be used to perform a display test on the display device, and each test image can include one or more test images. The types of test images can be test images of different colors and test images of different resolutions. Then, all test images can be tested in a pre-set display order installed on the display device, and different test images correspond to different display time periods, so that the display time period of each test image can be determined.

[0104] In a specific implementation, the display device may display each test image according to a predetermined display duration, and thus may determine a display period of each test image based on a display sequence of the test images and a display duration of each test image.

[0105] Specifically, the display period of each test image displayed by the display device can also be determined by real-time voltage data. It should be understood that since the display device displays different test images, its voltage will change, and then all voltage change moments can be determined according to the real-time voltage data, and the time interval between any two consecutive voltage change moments can be determined as the display period of the test image displayed between the two voltage change moments.

[0106] In practical applications, light sensors, brightness measuring instruments and other equipment can be used to continuously collect the brightness of the display device at each moment in the process of displaying a test image, and obtain real-time brightness data of the display device, so as to determine the real-time brightness of each test image during its display period, and determine the brightness change of each display period based on the real-time brightness of each display period.

[0107] Specifically, for each display period, the minimum brightness and maximum brightness within the display period can be determined from the real-time brightness data, and then the difference between the maximum brightness and the minimum brightness can be determined, that is, the brightness change of the display period, so that the brightness change of each display period can be obtained.

[0108] Exemplarily, the lowest brightness and the highest brightness between any two consecutive voltage change moments may be determined, so that the brightness change amount between the two voltage change moments may be obtained.

[0109] After obtaining the brightness variation of each display period, the brightness variation can be compared with the brightness variation threshold to obtain the display period in which the brightness variation is less than the brightness variation threshold, and the average brightness in the display period is determined as steady-state brightness data.

[0110] In practical applications, there may be one or more display periods in which the brightness change is less than the brightness change threshold. When there are multiple display periods in which the brightness change is less than the brightness change threshold, the average brightness of each display period can be determined, and based on the average brightness of each display period, the average brightness of all display periods can be determined, which is the steady-state brightness data.

[0111] In an embodiment of the present application, the real-time brightness data of the display device can be obtained in the following manner:

[0112] The real-time brightness data of the display device collected by the photoelectric converter when displaying the test image is obtained, and the real-time brightness data is recorded by an oscilloscope, and the real-time voltage data of the test image and the real-time brightness data of the test image are time-aligned.

[0113] The photoelectric converter can be a device that uses the principle of photoelectric effect to realize the conversion between optical signal and electrical signal. The photoelectric converter can be used to collect the brightness of the test image displayed by the display device.

[0114] In practical applications, a photoelectric converter can be used to collect the brightness data of a test image displayed by a display device in real time, and the collected brightness data can be converted into an electrical signal to transmit the converted electrical signal to an oscilloscope. The oscilloscope can then record the real-time brightness data represented by the electrical signal. At the same time, the oscilloscope can also collect the voltage data of the test image displayed by the display device, and the oscilloscope can then time-align the recorded brightness data and voltage data.

[0115] See also Figure 2 , Figure 2 A schematic diagram of real-time voltage data and real-time brightness data provided by an embodiment of the present application is shown in FIG. Figure 2 As shown, area A can be the real-time brightness data of the display device, and area B can be the real-time voltage data of the display device, wherein the real-time voltage data changes at time T0, time T1, and time T2, that is, time T0, time T1, and time T2 can be the voltage change moments, and then the brightness data at each voltage change moment can be determined from the real-time brightness data.

[0116] Step 103: determining a test result of the display device according to the first frame brightness data and the steady-state brightness data.

[0117] The test result may be used to evaluate the performance of the display device when displaying multiple test frames continuously, including whether a ghosting phenomenon occurs, and parameters such as the duration of the ghosting phenomenon.

[0118] After obtaining the first frame brightness data and the steady-state brightness data, the performance of the display device when continuously displaying multiple frames of test images can be evaluated based on the first frame brightness data and the steady-state brightness data to obtain the test results of the display device, so as to determine whether the display device's ghosting test is qualified or unqualified based on the obtained test results.

[0119] In an embodiment of the present application, by acquiring real-time voltage data of a test image displayed by a display device, and determining a first-frame test image based on the real-time voltage data, the test image displayed by the display device at the moment when the first voltage change occurs can be determined, thereby reducing the misjudgment of the first-frame image due to the low brightness of the test image. By determining the first-frame brightness data of the first-frame test image and the steady-state brightness data of the display device, the first-frame brightness data is the brightness data of the display device displaying the first-frame test image, and the steady-state brightness data is the brightness data when the brightness change of the display device during the process of displaying the test image is less than a brightness change threshold, the test result of the display device can be determined based on the first-frame brightness data and the steady-state brightness data determined by the real-time voltage data, thereby improving the accuracy of the ghosting test on the display device.

[0120] See also Figure 3 , Figure 3 A flowchart of another method for testing display data provided by an embodiment of the present application is shown, which may specifically include the following steps:

[0121] Step 301, obtaining real-time voltage data of a display device displaying a test image.

[0122] In an embodiment of the present application, the display device may include at least one display area, and the real-time voltage data of the display device displaying the test image may be obtained in the following manner:

[0123] Acquire real-time voltage data of each display area displaying a test image in the display device.

[0124] The display area may be all areas in the display device used to display images.

[0125] In practical applications, the area in the display device for displaying images may be divided into one or more display areas, and when the display device displays a test image, real-time voltage data of each display area may be acquired.

[0126] In a specific implementation, the number of display areas can be predetermined according to user needs, and the area used to display images in the display device can be divided to obtain a corresponding number of display areas. Figure 4 , Figure 4 A schematic diagram of a display area provided by an embodiment of the present application is shown as follows: Figure 4 As shown, the display device 4 may include an area 41 for displaying images, and the number of display areas may be 9. The area 41 for displaying images in the display device may be divided into 9 display areas to obtain areas 1 to 9, and then the real-time voltage data of areas 1 to 9 may be obtained.

[0127] Step 302: determine the first frame test image according to the real-time voltage data.

[0128] Step 303, determining the first frame brightness data of the first frame test image, and determining the steady-state brightness data of the display device.

[0129] In an embodiment of the present application, the first frame brightness data of the first frame test image and the steady-state brightness data of the display device can be determined in the following manner:

[0130] Determine the first frame brightness data of the first frame test image displayed in each display area, and determine the steady-state brightness data of each display area.

[0131] In a specific implementation, light sensors, brightness measuring instruments and other equipment can be used to continuously collect the brightness of each display area at each moment in the process of displaying a test image, and obtain real-time brightness data of each display area in the display device. Then, it can be determined from the real-time brightness data that the brightness data collected at the first voltage change moment is the first frame brightness data corresponding to the first frame test image, and the first frame brightness data of the first frame test image displayed by each display area is obtained.

[0132] At the same time, based on the brightness collected by light sensors, brightness measuring instruments and other devices, the brightness that tends to be stable when each display area in the display device displays a test image can be determined, that is, the brightness of each display area when the brightness change is less than a preset brightness change threshold during the display of the test image is determined as steady-state brightness data.

[0133] Step 304: Determine the test brightness ratio of the display device according to the first frame brightness data and the steady-state brightness data.

[0134] The test brightness ratio may be a ratio between first frame brightness data and steady-state brightness data, and the test brightness ratio may represent the performance of a display device when displaying multiple frames of test images continuously.

[0135] After obtaining the first frame brightness data and the steady-state brightness data of the display device, the ratio between the first frame brightness data and the steady-state brightness data may be calculated to obtain the test brightness ratio of the display device.

[0136] In an embodiment of the present application, step 303 may include the following steps:

[0137] The test brightness ratio of each display area is determined according to the first frame brightness data of each display area and the steady-state brightness data of each display area.

[0138] After obtaining the first frame brightness data and the steady-state brightness data of each display area, the ratio between the first frame brightness data and the steady-state brightness data in each display area may be calculated in turn to obtain the test brightness ratio of each display area.

[0139] Step 305: Generate a test result of the display device based on the test brightness ratio.

[0140] After the test brightness ratio is obtained, the performance of the display device when displaying multiple frames of test images continuously can be evaluated based on the test brightness ratio to obtain a test result of the display device.

[0141] In an embodiment of the present application, the test image may include a white screen test image and a color test image of at least two colors. The white screen test image may be an image that only displays white, and the color test image may be an image that only displays colors other than white. Generally, the color test image may be an image that displays one of the three primary colors. The test brightness ratio may include a test brightness ratio of the color test image and a test brightness ratio of the white screen test image. Step 304 may include the following steps:

[0142] A test result of the display device is generated according to the test brightness ratio of the color test image and the test brightness ratio of the white screen test image.

[0143] In actual applications, the display device can display a black screen test image at the beginning of the smear test, and after displaying it for a certain period of time, switch to display a white screen test image, and then determine the first frame test image after the display device switches the display screen, and obtain the first frame brightness data of the first frame test image, and obtain the steady-state brightness data of the display device after switching to display the white screen test image, so as to obtain the test brightness ratio of the white screen test image.

[0144] Similarly, the display device may display a black screen test image at the beginning of the smear test, and after displaying it for a certain period of time, switch to display a color screen test image, so as to obtain a test brightness ratio of the color screen test image.

[0145] After obtaining the test brightness ratio of the color screen test image and the test brightness ratio of the white screen test image, the test result of the display device can be generated according to the test brightness ratio of the color test image and the test brightness ratio of the white screen test image.

[0146] In an embodiment of the present application, step 304 may further include the following steps:

[0147] Based on the test brightness ratio of each display area, a test result of the display device is generated.

[0148] In a specific implementation, it is also possible to obtain a test brightness ratio value corresponding to each display area and the color test image, as well as a test brightness ratio value corresponding to each display area and the white screen test image. Then, the test result of the display device can be generated according to the test brightness ratio value corresponding to the color test image and the test brightness ratio value corresponding to the white screen test image in each display area.

[0149] In an embodiment of the present application, the test result of the display device may be generated in the following manner:

[0150] According to the test brightness ratio of each color test image, the test brightness difference between each color test image is determined. When the test brightness ratio of the white screen test image is greater than or equal to the preset first brightness ratio, and the test brightness difference is less than or equal to the preset second brightness ratio, it is determined that the test result of the ghosting test on the display device is qualified. When the test brightness ratio of the white screen test image is less than the first brightness ratio, and the test brightness difference is greater than the second brightness ratio, it is determined that the test result of the ghosting test on the display device is unqualified.

[0151] The test brightness difference may be the difference between the test brightness ratios of each color test image, the first brightness ratio may be an empirically obtained ratio, generally 90%, and the second brightness ratio may be an empirically obtained ratio, generally 50%.

[0152] After obtaining the test brightness ratio of the color screen test image and the test brightness ratio of the white screen test image, the test brightness ratio of each color screen test image can be subtracted to obtain the test brightness difference between each color screen test image, and the largest test brightness difference among all the test brightness differences can be compared with the second brightness ratio, and the test brightness ratio of the white screen test image can be compared with the first brightness ratio. Then, when the test brightness ratio of the white screen test image is greater than or equal to the first brightness ratio and the test brightness difference is less than or equal to the second brightness ratio, it is determined that the test result of the ghosting test of the display device is qualified, and when the test brightness ratio of the white screen test image is less than the first brightness ratio and the test brightness difference is greater than the second brightness ratio, it is determined that the test result of the ghosting test of the display device is unqualified.

[0153] For example, the color screen test image may include an R color test image, a G color test image, and a B color test image, and then the test brightness difference between the R color test image and the G color test image can be determined, the test brightness difference between the G color test image and the B color test image can be obtained, and the test brightness difference between the R color test image and the B color test image can be obtained, and then the test brightness difference with the largest value can be determined from all the test brightness difference values, and the test brightness difference with the largest value can be compared with the second brightness ratio.

[0154] In one embodiment of the present application, the test brightness ratio of each display area can also be determined, and then the test brightness ratio of the color screen test image and the test brightness ratio of the white screen test image of each display area can be obtained. For each display area, the test brightness ratio of each color screen test image of the display area can be subtracted to obtain the test brightness difference between each color screen test image, and the largest test brightness difference among all the test brightness differences is compared with the second brightness ratio, and the test brightness ratio of the white screen test image of the display area is compared with the first brightness ratio, so as to obtain a test result of whether the smear test of the display area is qualified, and when all display areas are qualified, the test result of the smear test of the display device is determined to be qualified, and when the test result of any display area is unqualified, the test result of the smear test of the display device is determined to be unqualified.

[0155] It should be understood that due to the differences in the physical properties and aging degree of each display area, the display brightness and voltage of each display area will be different when displaying the test image. In order to improve the accuracy of the ghosting test, the area used to display the image in the display device can be divided into multiple display areas, and the real-time voltage data of each display area can be determined. The first frame test image of each display area and its corresponding first frame brightness data can be determined based on the real-time voltage data of each display area. The test result of each display area can be obtained based on the first frame brightness data and steady-state brightness data of each display area, and the test result of the display device can be determined according to the test result of each display area, thereby reducing the accuracy of the ghosting test due to the differences in display brightness and real-time voltage of each display area, thereby further improving the accuracy of the ghosting test.

[0156] In an embodiment of the present application, the display device may further include at least one refresh rate, and the test result of the display device may include the test result generated by the display device at each refresh rate.

[0157] The refresh rate may be the frequency at which the display device updates the displayed content per second.

[0158] In practical applications, the test results of the display device at each refresh rate can also be determined, and then based on the test results of each refresh rate, whether the test result of the smear test of the display device is qualified can be generated.

[0159] Specifically, when the test results of each refresh rate are qualified, the test result of the display device for the ghosting test is determined to be qualified, and when there is at least one refresh rate test result that is unqualified, the test result of the display device for the ghosting test is determined to be unqualified.

[0160] In an embodiment of the present application, by acquiring real-time voltage data of a test image displayed by a display device, determining a first-frame test image based on the real-time voltage data, and then being able to determine the test image displayed by the display device at the moment when the first voltage changes, thereby reducing the possibility of misjudgment of the first-frame image due to low brightness of the test image, and by determining first-frame brightness data of the first-frame test image and determining steady-state brightness data of the display device, determining a test brightness ratio of the display device based on the first-frame brightness data and the steady-state brightness data, and generating a test result of the display device based on the test brightness ratio, and then being able to determine the test result of the display device based on the test brightness ratio, thereby further improving the accuracy of the smear test on the display device and improving the reliability of the display device.

[0161] See also Figure 5 , Figure 5 A schematic diagram of the structure of a display device testing device provided in an embodiment of the present application is shown, and the device may specifically include the following modules:

[0162] The acquisition module 501 is used to acquire the real-time voltage data of the display device displaying the test image, and determine the first frame test image according to the real-time voltage data;

[0163] The determination module 502 is used to determine the first frame brightness data of the first frame test image and to determine the steady-state brightness data of the display device; wherein the first frame brightness data is the brightness data of the display device displaying the first frame test image, and the steady-state brightness data is the brightness data when the brightness change of the display device during the process of displaying the test image is less than a preset brightness change threshold;

[0164] The testing module 503 is used to determine the test result of the display device according to the first frame brightness data and the steady-state brightness data.

[0165] In one implementation, the acquisition module 501 may also be used to:

[0166] Determine a first voltage change time according to the real-time voltage data; wherein the first voltage change time is the time when the voltage of the display device changes for the first time when the test image is displayed;

[0167] At least two test image frames displayed by the display device are collected, and the test image collected at the first voltage change moment is determined as the first test image frame.

[0168] In one implementation, the determination module 502 may also be used to:

[0169] Determining a display period of each frame of the test image according to the real-time voltage data;

[0170] Acquire real-time brightness data of the display device, and determine the brightness change amount of each display period according to the real-time brightness data;

[0171] A target display period in which the brightness change amount is less than the brightness change threshold is determined, and average brightness data of the target display period is determined as steady-state brightness data.

[0172] In one implementation, the determination module 502 may also be used to:

[0173] The brightness data at the moment when the first voltage changes is determined from the real-time brightness data as the first frame brightness data corresponding to the first frame test image.

[0174] In one implementation, the above-mentioned confirmation test module 503 may also be used for:

[0175] Determining a test brightness ratio of the display device according to the first frame brightness data and the steady-state brightness data;

[0176] Based on the test brightness ratio, a test result of the display device is generated.

[0177] In one implementation, the display device includes at least one display area, and the acquisition module 501 may also be used to:

[0178] Acquire real-time voltage data of each display area in the display device displaying the test image;

[0179] The determining of the first frame brightness data of the first frame test image and the determining of the steady-state brightness data of the display device comprises:

[0180] Determine the first frame brightness data of each of the display areas displaying the first frame test image, and determine the steady-state brightness data of each of the display areas.

[0181] In one implementation, the above-mentioned confirmation test module 503 may also be used for:

[0182] Determine a test brightness ratio of each display area according to the first frame brightness data of each display area and the steady-state brightness data of each display area;

[0183] In one implementation, the above-mentioned confirmation test module 503 may also be used for:

[0184] A test result of the display device is generated based on the test brightness ratio of each of the display areas.

[0185] In one implementation, the test image includes a white screen test image and a color test image of at least two colors, the test brightness ratio includes a test brightness ratio of the color test image and a test brightness ratio of the white screen test image, and the above-mentioned test module 503 can also be used to:

[0186] A test result of the display device is generated according to the test brightness ratio of the color test image and the test brightness ratio of the white screen test image.

[0187] In one implementation, the above-mentioned confirmation test module 503 may also be used for:

[0188] Determining a test brightness difference between each of the color test images according to a test brightness ratio of each of the color test images;

[0189] When the test brightness ratio of the white screen test image is greater than or equal to a preset first brightness ratio, and the test brightness difference is less than or equal to a preset second brightness ratio, determining that the test result of the display device is qualified;

[0190] When the test brightness ratio of the white screen test image is less than the first brightness ratio, and the test brightness difference is greater than the second brightness ratio, it is determined that the test result of the display device is unqualified.

[0191] In one implementation, the acquisition module 501 may also be used to:

[0192] Determine the voltage change value between any two consecutive moments of real-time voltage data according to the real-time voltage data;

[0193] When the voltage change value is greater than or equal to a preset voltage change threshold, the time corresponding to the voltage change value is recorded as the voltage change time, and the earliest recorded voltage change time is determined as the first voltage change time.

[0194] In one implementation, the acquisition module 501 may also be used to:

[0195] Acquiring real-time voltage data collected by an oscilloscope when the display device displays the test image;

[0196] The acquiring real-time brightness data of the display device comprises:

[0197] Acquire real-time brightness data of the display device when displaying the test image, collected by a photoelectric converter;

[0198] The real-time voltage data of the test image and the real-time brightness data of the test image are time-aligned.

[0199] In one implementation, the display device includes at least one refresh rate, and the test result of the display device includes a test result generated by the display device at each refresh rate.

[0200] In an embodiment of the present application, by acquiring real-time voltage data of a test image displayed by a display device, and determining a first-frame test image based on the real-time voltage data, the test image displayed by the display device at the moment when the first voltage changes can be determined, thereby reducing the misjudgment of the first-frame image due to the low brightness of the test image. By determining the first-frame brightness data of the first-frame test image and the steady-state brightness data of the display device, the first-frame brightness data is the brightness data of the display device displaying the first-frame test image, and the steady-state brightness data is the brightness data when the brightness change of the display device during the process of displaying the test image is less than a brightness change threshold, the test result of the display device can be determined based on the first-frame brightness data and the steady-state brightness data determined by the real-time voltage data, thereby improving the accuracy of the ghosting test on the display device and improving the reliability of the display device.

[0201] It should be noted that the information interaction, execution process and other contents between the above-mentioned devices are based on the same concept as the method embodiment of the present application. Their specific functions and technical effects can be found in the method embodiment part and will not be repeated here.

[0202] The technicians in the relevant field can clearly understand that for the convenience and simplicity of description, only the division of the above-mentioned functional units and modules is used as an example for illustration. In practical applications, the above-mentioned function allocation can be completed by different functional units and modules as needed, that is, the internal structure of the device can be divided into different functional units or modules to complete all or part of the functions described above. The functional units and modules in the embodiment can be integrated in a processing unit, or each unit can exist physically separately, or two or more units can be integrated in one unit. The above-mentioned integrated unit can be implemented in the form of hardware or in the form of software functional units. In addition, the specific names of the functional units and modules are only for the convenience of distinguishing each other, and are not used to limit the scope of protection of this application. The specific working process of the units and modules in the above-mentioned system can refer to the corresponding process in the aforementioned method embodiment, which will not be repeated here.

[0203] See also Figure 6 , Figure 6 A structural block diagram of a terminal device provided by an embodiment of the present application is shown as follows: Figure 6As shown, this embodiment provides a terminal device 61, which includes: at least one processor 611, a memory 612, and a computer program 6121 stored in the memory 612 and executable on at least one processor 611, and when the processor 611 executes the computer program 6121, the steps in any of the above-mentioned method embodiments are implemented.

[0204] The embodiment of the present application further provides a computer-readable storage medium, which stores a computer program. When the computer program is executed by a processor, the steps in any one of the above method embodiments can be implemented.

[0205] An embodiment of the present application provides a computer program product. When the computer program product is run on a terminal device, the terminal device can implement the steps in the above-mentioned method embodiments when executing the computer program product.

[0206] If the integrated unit is implemented in the form of a software functional unit and sold or used as an independent product, it can be stored in a computer-readable storage medium. Based on this understanding, the present application implements all or part of the processes in the above-mentioned embodiment method, which can be completed by instructing the relevant hardware through a computer program. The computer program can be stored in a computer-readable storage medium, and the computer program can implement the steps of the above-mentioned various method embodiments when executed by the processor. Among them, the computer program includes computer program code, and the computer program code can be in source code form, object code form, executable file or some intermediate form. The computer-readable medium may at least include: any entity or device capable of carrying the computer program code to the camera device / terminal device, a recording medium, a computer memory, a read-only memory (ROM), a random access memory (RAM), an electrical carrier signal, a telecommunication signal, and a software distribution medium.

[0207] The embodiments described above are only used to illustrate the technical solutions of the present application, rather than to limit them. Although the present application has been described in detail with reference to the aforementioned embodiments, a person skilled in the art should understand that the technical solutions described in the aforementioned embodiments may still be modified, or some of the technical features may be replaced by equivalents. Such modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present application, and should all be included in the protection scope of the present application.

Claims

1. A method for testing a display device, characterized in that: The method comprises: Acquire real-time voltage data of a display device displaying a test image, and determine a first frame of the test image based on the real-time voltage data; Determine the first frame brightness data of the first frame test image, and determine the steady-state brightness data of the display device; wherein the first frame brightness data is the brightness data of the display device displaying the first frame test image, and the steady-state brightness data is the brightness data when the brightness change of the display device in the process of displaying the test image is less than a preset brightness change threshold; A test result of the display device is determined according to the first frame brightness data and the steady-state brightness data.

2. The method for testing a display device according to claim 1, wherein: The step of determining a first frame test image according to the real-time voltage data comprises: Determine a first voltage change time according to the real-time voltage data; wherein the first voltage change time is the time when the voltage of the display device changes for the first time when the test image is displayed; At least two test image frames displayed by the display device are collected, and the test image collected at the first voltage change moment is determined as the first test image frame.

3. The method for testing a display device according to claim 2, wherein: The determining the steady-state brightness data of the display device comprises: Determining a display period of each frame of the test image according to the real-time voltage data; Acquire real-time brightness data of the display device, and determine the brightness change amount of each display period according to the real-time brightness data; A target display period in which the brightness change amount is less than the brightness change threshold is determined, and average brightness data of the target display period is determined as steady-state brightness data.

4. The method for testing a display device according to claim 3, wherein: The determining of the first frame brightness data of the first frame test image includes: The brightness data at the moment when the first voltage changes is determined from the real-time brightness data as the first frame brightness data corresponding to the first frame test image.

5. The method for testing a display device according to any one of claims 1 to 4, characterized in that: The step of determining the test result of the display device according to the first frame brightness data and the steady-state brightness data includes: Determining a test brightness ratio of the display device according to the first frame brightness data and the steady-state brightness data; Based on the test brightness ratio, a test result of the display device is generated.

6. The method for testing a display device according to claim 5, wherein: The display device includes at least one display area, and the step of acquiring real-time voltage data of a test image displayed by the display device includes: Acquire real-time voltage data of each display area in the display device displaying the test image; The determining of the first frame brightness data of the first frame test image and the determining of the steady-state brightness data of the display device comprises: Determine the first frame brightness data of each of the display areas displaying the first frame test image, and determine the steady-state brightness data of each of the display areas.

7. The method for testing a display device according to claim 6, wherein: Determining the test brightness ratio of the display device according to the first frame brightness data and the steady-state brightness data includes: Determine a test brightness ratio of each display area according to the first frame brightness data of each display area and the steady-state brightness data of each display area; The step of generating a test result of the display device based on the test brightness ratio includes: A test result of the display device is generated based on the test brightness ratio of each of the display areas.

8. The method for testing a display device according to claim 5, wherein: The test image includes a white screen test image and a color test image of at least two colors, the test brightness ratio includes a test brightness ratio of the color test image and a test brightness ratio of the white screen test image, and generating a test result of the display device based on the test brightness ratio includes: A test result of the display device is generated according to the test brightness ratio of the color test image and the test brightness ratio of the white screen test image.

9. The method for testing a display device according to claim 8, wherein: Generating a test result of the display device according to the test brightness ratio of the color test image and the test brightness ratio of the white screen test image includes: Determining a test brightness difference between each of the color test images according to a test brightness ratio of each of the color test images; When the test brightness ratio of the white screen test image is greater than or equal to a preset first brightness ratio, and the test brightness difference is less than or equal to a preset second brightness ratio, determining that the test result of the display device is qualified; When the test brightness ratio of the white screen test image is less than the first brightness ratio, and the test brightness difference is greater than the second brightness ratio, it is determined that the test result of the display device is unqualified.

10. The method for testing a display device according to any one of claims 2 to 4 or 6 to 9, characterized in that: The step of determining a first voltage change time according to the real-time voltage data comprises: Determine the voltage change value between any two consecutive moments of real-time voltage data according to the real-time voltage data; When the voltage change value is greater than or equal to a preset voltage change threshold, the time corresponding to the voltage change value is recorded as the voltage change time, and the earliest recorded voltage change time is determined as the first voltage change time.

11. The method for testing a display device according to claim 3, wherein: The step of obtaining real-time voltage data of a display device displaying a test image includes: Acquiring real-time voltage data collected by an oscilloscope when the display device displays the test image; The acquiring real-time brightness data of the display device comprises: Acquire real-time brightness data of the display device when displaying the test image, collected by a photoelectric converter; The real-time voltage data of the test image and the real-time brightness data of the test image are time-aligned.

12. The method for testing a display device according to claim 5, wherein: The display device includes at least one refresh rate, and the test result of the display device includes a test result generated by the display device at each of the refresh rates.

13. A testing device for a display device, characterized in that: The device comprises: An acquisition module, used to acquire real-time voltage data of a display device displaying a test image, and determine a first frame of the test image according to the real-time voltage data; A determination module, used to determine the first frame brightness data of the first frame test image, and to determine the steady-state brightness data of the display device; wherein the first frame brightness data is the brightness data of the display device displaying the first frame test image, and the steady-state brightness data is the brightness data when the brightness change of the display device in the process of displaying the test image is less than a preset brightness change threshold; A testing module is used to determine a test result of the display device according to the first frame brightness data and the steady-state brightness data.

14. A terminal device, comprising a memory, a processor, and a computer program stored in the memory and executable on the processor, characterized in that: When the processor executes the computer program, the method according to any one of claims 1 to 12 is implemented.

15. A computer program product comprising a computer program, characterized in that When the computer program is executed on a computer, the computer is caused to execute the method according to any one of claims 1 to 12.

Images