CN117311650A

CN117311650A - Display module verification method, system and device

Info

Publication number: CN117311650A
Application number: CN202210718136.0A
Authority: CN
Inventors: 汪伯成; 何青帝
Original assignee: Glenfly Tech Co Ltd
Current assignee: Glenfly Tech Co Ltd
Priority date: 2022-06-23
Filing date: 2022-06-23
Publication date: 2023-12-29
Anticipated expiration: 2042-06-23
Also published as: CN117311650B

Abstract

The application relates to a display module verification method, a system and a device. The method comprises the following steps: responding to a display function verification request aiming at a display module to be verified, and acquiring first display frame data corresponding to the display function verification request; inputting the first display frame data into a display module, and obtaining a display signal aiming at the first display frame data through the display module; inputting the display signal to a test module for testing the display function of the display module, and obtaining second display frame data corresponding to the display signal through the test module; and obtaining a display function verification result of the display module according to the first display frame data and the second display frame data. Compared with the method that the display is observed through human eyes to realize the verification of the display module, the verification method of the display module provided by the application does not depend on human eyes to observe, so that the verification efficiency of the display module can be improved.

Description

Display module verification method, system and device

Technical Field

The present disclosure relates to the field of computer technologies, and in particular, to a method, a system, and an apparatus for verifying a display module.

Background

Along with the development of computer technology, a technology for realizing image display by using a Graphics Processing Unit (GPU) appears, and a display module carried in the unit can generate a time sequence which accords with a standard and contains a horizontal direction and a vertical direction according to the output resolution set by a user, and can grasp display data from a pixel matrix of a display memory according to the setting of the time sequence, and output a final display signal to a display for display through packaging, recombination or digital-to-analog conversion.

At present, in order to ensure the accuracy of image display, the display function of the display module is usually required to be verified, for example, a mode of externally connecting a display to the display module is adopted, corresponding sample data is input in a display memory, after the display module outputs a display signal according to the sample data, the display signal is displayed through the display, and then whether the display in the display meets expectations or not can be observed through a human eye mode, so that the verification of the display module is realized. However, the above verification method for the display module relies on the manner of observation by the human eye to realize the verification of the display module, so the efficiency of the verification of the display module is low.

Disclosure of Invention

In view of the foregoing, it is desirable to provide a display module verification method, system, and apparatus that can improve the verification efficiency of a display module.

In a first aspect, the present application provides a display module verification method, the method including:

responding to a display function verification request aiming at a display module to be verified, and acquiring first display frame data corresponding to the display function verification request;

inputting the first display frame data into the display module, and obtaining a display signal aiming at the first display frame data through the display module;

Inputting the display signal to a test module for testing the display function of the display module, and obtaining second display frame data corresponding to the display signal through the test module;

and obtaining a display function verification result of the display module according to the first display frame data and the second display frame data.

In one embodiment, the first display frame data and the second display frame data respectively correspond to pixel values of a plurality of pixel points; the step of obtaining a display function verification result of the display module according to the first display frame data and the second display frame data includes: acquiring a first pixel value of each pixel corresponding to the first display frame data, and acquiring a second pixel value of each pixel corresponding to the second display frame data; respectively comparing the first pixel value of each pixel point with the second pixel value of each pixel point to obtain a pixel value comparison result of each pixel point; and obtaining a display function verification result of the display module according to the pixel value comparison result of each pixel point.

In one embodiment, the obtaining the display function verification result of the display module according to the pixel value comparison result of each pixel point includes: if the pixel value comparison result represents the first pixel value of each pixel point and is respectively the same as the second pixel value of each pixel point, determining that the display function verification result of the display module is verification passing; and/or if the pixel value comparison result represents the first pixel value of any pixel point and is different from the second pixel value of the pixel point, determining that the display function verification result of the display module is verification failure.

In one embodiment, the obtaining the display function verification result of the display module according to the first display frame data and the second display frame data includes: acquiring a first frame data identifier corresponding to the first display frame data and a second frame data identifier corresponding to the second display frame data; and comparing the first frame data identifier with the second frame data identifier, and obtaining a display function verification result of the display module according to the comparison result of the first frame data identifier and the second frame data identifier.

In one embodiment, the display module includes: the display data processing module is used for carrying out data superposition and color adjustment processing on the first display frame data according to a preset time sequence, and the output interface module is used for carrying out coding processing on the first display frame data after the data superposition and color adjustment processing and outputting the display signals; after the display function verification result of the display module is obtained, the method further comprises the following steps: if the display function verification result of the display module is that verification is not passed, acquiring a third frame data identifier corresponding to the data superposition and the first display frame data after the color adjustment processing; and determining a fault module with faults from the display modules according to the first frame data identifier, the second frame data identifier and the third frame data identifier.

In one embodiment, the determining, from the display module, the failure module that has a failure according to the first frame data identifier, the second frame data identifier, and the third frame data identifier includes: comparing the first frame data identifier with the third frame data identifier, and taking the display data processing module as the fault module if the comparison result of the first frame data identifier and the third frame data identifier is that the first frame data identifier is different from the third frame data identifier; and/or comparing the second frame data identifier with the third frame data identifier, and if the comparison result of the second frame data identifier and the third frame data identifier is that the second frame data identifier is different from the third frame data identifier, taking the output interface module as the fault module.

In a second aspect, the present application further provides a display module verification system, the system comprising: the display module to be verified, a test module for testing the display function of the display module, and a verification module for verifying the display function of the display module; wherein,

The verification module is used for responding to a display function verification request aiming at the display module and acquiring first display frame data corresponding to the display function verification request;

the display module is used for acquiring the first display frame data and obtaining a display signal aiming at the first display frame data;

the test module is used for acquiring the display signal and obtaining second display frame data corresponding to the display signal;

the verification module is further configured to obtain a display function verification result of the display module according to the first display frame data and the second display frame data.

In one embodiment, the verification module is further configured to store the first display frame data into a video memory; the display module is further configured to receive the first display frame data from the video memory, obtain the display signal, and input the display signal to the test module; the test module is further configured to receive the display signal from the display module, obtain the second display frame data, and write the second display frame data into the video memory; the verification module is further configured to obtain the first display frame data and the second display frame data from the video memory, and obtain the verification result of the display function according to the first display frame data and the second display frame data.

In one embodiment, the test module includes: a communication receiving module and a video input processing module; the communication receiving module is used for decoding the display signal to obtain a color component signal corresponding to the display signal and a synchronous time sequence signal corresponding to the display signal; the video input processing module is configured to receive the synchronization timing signal and the color component signal from the communication receiving module, and synthesize the color component signal according to the synchronization timing signal to obtain the second display frame data.

In one embodiment, the display module includes a display data processing module, and an output interface module; the display data processing module is used for acquiring a preset time sequence and carrying out data superposition and color adjustment processing on the first display frame data according to the time sequence; the output interface module is used for carrying out coding processing on the first display frame data after the data superposition and color adjustment processing and outputting the display signal.

In a third aspect, the present application further provides a display module verification apparatus, the apparatus including:

The display device comprises a first data acquisition module, a second data acquisition module and a display function verification module, wherein the first data acquisition module is used for responding to a display function verification request of a display module to be verified and acquiring first display frame data corresponding to the display function verification request;

the display signal acquisition module is used for inputting the first display frame data into the display module, and obtaining a display signal aiming at the first display frame data through the display module;

the second data acquisition module is used for inputting the display signals to a test module for testing the display functions of the display module, and obtaining second display frame data corresponding to the display signals through the test module;

and the verification result acquisition module is used for acquiring a display function verification result of the display module according to the first display frame data and the second display frame data.

The display module verification method, the display module verification system and the display module verification device acquire first display frame data corresponding to a display function verification request by responding to the display function verification request of the display module to be verified; inputting the first display frame data into a display module, and obtaining a display signal aiming at the first display frame data through the display module; inputting the display signal to a test module for testing the display function of the display module, and obtaining second display frame data corresponding to the display signal through the test module; and obtaining a display function verification result of the display module according to the first display frame data and the second display frame data. According to the display module verification method, the display signals output by the display module to be verified can be converted into the second display frame data through the test module, the original first display frame data and the second display frame data converted through the display module and the test module can be utilized to obtain the display function verification result of the display module, and compared with the verification that the display is observed through a human eye to realize the display module, the display module verification method does not depend on human eye observation, and therefore the display module verification efficiency can be improved.

Drawings

FIG. 1 is a diagram of an application environment for a display module verification method in one embodiment;

FIG. 2 is a flow chart of a method for verifying a display module according to an embodiment;

FIG. 3 is a flowchart of a display function verification result of a display module according to an embodiment;

FIG. 4 is a flowchart of a display function verification result of a display module according to another embodiment;

FIG. 5 is a flow diagram of a failure module from among display modules according to one embodiment;

FIG. 6 is a schematic diagram of a display module verification system according to one embodiment;

FIG. 7 is a schematic workflow diagram of a display module in an example application;

FIG. 8 is a schematic diagram of a connection mode of hardware modules in an application example;

FIG. 9 is a schematic diagram of a connection mode of hardware modules in another embodiment;

fig. 10 is a schematic diagram of the working principle of the communication receiving module in an application example;

FIG. 11 is a schematic diagram illustrating the operation of the video input processing module in an example application;

FIG. 12 is a flow chart of a method for verifying functions of a display module in an application example;

FIG. 13 is a schematic diagram showing a connection manner of hardware modules in another embodiment;

Fig. 14 is a block diagram showing a structure of a module verification apparatus in one embodiment.

Detailed Description

In order to make the objects, technical solutions and advantages of the present application more apparent, the present application will be further described in detail with reference to the accompanying drawings and examples. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the present application.

The display module verification method provided by the embodiment of the application can be applied to an application environment shown in fig. 1. Wherein the verification module 101 and the display module 102, and the test module 103 for testing the display function of the display module 102 are in communication connection. Specifically, when the user needs to verify the display function of the display module 102, a display function verification request for the display module 102 that needs to be verified may be triggered to the verification module 101, the verification module 101 may respond to the display function verification request, so as to generate first display frame data for verification, then the first display frame data may be input to the display module 102, the display module 102 processes the first display frame data, so as to output a display signal for the first display frame data, then the display signal is input to the test module 103, the test module 103 may generate corresponding second display frame data according to the obtained display signal, and finally the verification module 101 may further determine a display function verification result of the display module 102 according to the generated first display frame data and the second display frame data obtained by the test module 103. The verification module 101 may be, but not limited to, various personal computers, notebook computers, smartphones, tablet computers, internet of things devices and portable wearable devices, the display module 102 refers to a display module in a graphics processing unit for performing display function test, and the test module 103 is a hardware device communicatively connected to the display module 102 for testing the display function of the display module 102.

In one embodiment, as shown in fig. 2, a display module verification method is provided, and the verification module 101 in fig. 1 is taken as an example to illustrate the application of the method, and the method includes the following steps:

in step S201, in response to the display function verification request for the display module 102 to be verified, first display frame data corresponding to the display function verification request is acquired.

The display module 102 is a display module that needs to perform display function verification, for example, may be a module in a certain GPU for generating a display signal conforming to a specific interface protocol to drive a display screen of a display, a display function verification request is triggered by a user and is used for performing a request for performing display function verification on the display module 102, where the request may carry test data for performing a verification test on the display module 102, and the verification module 101 may obtain corresponding display frame data according to the test data as first display frame data.

Specifically, when the user needs to perform verification of the display function on the display module 102, a corresponding verification request of the display function may be triggered to the verification module 101, for example, a corresponding test time sequence and a display layer adapted to the test time sequence may be input to the verification module 101 first, so that the verification module 101 may obtain corresponding display frame data according to the input display layer, and use the corresponding display frame data as the first display frame data.

In step S202, the first display frame data is input to the display module 102, and a display signal for the first display frame data is obtained by the display module 102.

The display signal refers to a display signal obtained by the display module 102 based on the input first display frame data, and the display module 102 may generate a corresponding display signal according to the input display frame data, so that the display frame data may be displayed on the display screen. Specifically, after the first display frame data is obtained, the first display frame data may be input to the display module 102 that needs to perform display function verification, and the display module 102 generates a corresponding display signal based on the input first display frame data.

In step S203, the display signal is input to the test module 103 for performing the display function test on the display module 102, and the second display frame data corresponding to the display signal is obtained by the test module 103.

The test module 103 is a module for performing performance test on the display module 102, where the module may restore the display signal output by the display module 102 to display frame data, and the second display frame data refers to display frame data obtained by restoring the display signal output by the test module 103 based on the display signal output by the display module 102, where the second display frame data may be the same as or different from the first display frame data, and because the display function of the display module 102 may have a defect, the display signal output by the display module 102 based on the first display frame data may not be a display signal actually corresponding to the first display frame data, and therefore, after restoring the display signal by the test module 103, the obtained second display frame data may also be different from the first display frame data. In this embodiment, after the display signal output by the display module 102 is obtained, the display signal may be input to the test module 103, and the test module 103 performs a reduction process on the display signal, so as to obtain the second display frame data corresponding to the display signal.

Step S204, according to the first display frame data and the second display frame data, the display function verification result of the display module 102 is obtained.

The display function verification result is a verification result of the display function of the display module 102, after the verification module 101 obtains the original first display frame data and the second display frame data obtained through the restoration of the test module 103, whether the display function of the display module 102 is accurate or not may be determined further according to the first display frame data and the second display frame data, for example, the verification module 101 may compare the first display frame data and the second display frame data to determine whether the first display frame data and the second display frame data are identical, if the obtained first display frame data and the second display frame data are identical, it may be determined that the display function verification result of the display module 102 is verification passing, and if the first display frame data and the second display frame data are not identical, it may be determined that the display function verification result of the display module 102 is verification failing.

In the display module verification method, first display frame data corresponding to a display function verification request is acquired by responding to the display function verification request of a display module to be verified; inputting the first display frame data into a display module, and obtaining a display signal aiming at the first display frame data through the display module; inputting the display signal to a test module for testing the display function of the display module, and obtaining second display frame data corresponding to the display signal through the test module; and obtaining a display function verification result of the display module according to the first display frame data and the second display frame data. According to the display module verification method, the display signals output by the display module to be verified can be converted into the second display frame data through the test module, the original first display frame data and the second display frame data converted through the display module and the test module can be utilized to obtain the display function verification result of the display module, and compared with the verification that the display is observed through a human eye to realize the display module, the display module verification method does not depend on human eye observation, and therefore the display module verification efficiency can be improved.

In one embodiment, the first display frame data and the second display frame data respectively correspond to pixel values of a plurality of pixel points, as shown in fig. 3, step S204 may further include:

step S301, obtaining a first pixel value of each pixel corresponding to the first display frame data, and obtaining a second pixel value of each pixel corresponding to the second display frame data.

In this embodiment, the display frame data may be used to represent a pixel value displayed on the display, where the first pixel value refers to a pixel value displayed on the display for each pixel represented by the first display frame data, and the second pixel value refers to a pixel value displayed on the display for each pixel represented by the second display frame data. Specifically, after the verification module 101 obtains the first display frame data and the second display frame data, the first pixel value of each represented pixel point may be further obtained from the first display frame data, and the second pixel value of each represented pixel point may be obtained from the second display frame data.

Step S302, respectively comparing the first pixel value of each pixel point with the second pixel value of each pixel point to obtain a pixel value comparison result of each pixel point;

Step S303, according to the pixel value comparison result of each pixel point, a display function verification result of the display module 102 is obtained.

After the first pixel value and the second pixel value of each pixel are obtained in step S301, the first pixel value and the second pixel value of each pixel may be compared one by one, so as to obtain a pixel value comparison result of each pixel, and then the verification module 101 may determine a display function verification result of the display module 102 based on the pixel value comparison result of each pixel.

For example, the pixel points displayed on the display may include a pixel point a, a pixel point B, a pixel point C and a pixel point D, where the first pixel value of each pixel point represented by the first display frame data may be a pixel value A1 of the pixel point a, a pixel value B1 of the pixel point B, a pixel value C1 of the pixel point C and a pixel value D1 of the pixel point D, and the second pixel value of each pixel point represented by the second display frame data may be a pixel value A2 of the pixel point a, a pixel value B2 of the pixel point B, a pixel value C2 of the pixel point C and a pixel value D2 of the pixel point D, respectively, and then the verification module 101 may compare the pixel values of the pixel points one by one, that is, compare the pixel value A1 with the pixel value A2, compare the pixel value B1 with the pixel value B2, and compare the pixel value C1 with the pixel value C2, and compare the pixel value D2, respectively, and then determine that each of the verification modules is able to obtain the verification result based on the comparison result, and the verification result is displayed on each pixel module 101.

In this embodiment, the verification module 101 may determine the verification result of the display function of the display module 102 by comparing each pixel value one by one based on the pixel values of each pixel point respectively represented by the first display frame data and the second display frame data, and by using the above manner, the verification result of the display function of the display module 102 may be accurately obtained, so as to improve the accuracy of the verification of the display function of the display module 102.

Further, step S303 may further include: if the pixel value comparison result represents the first pixel value of each pixel point and is the same as the second pixel value of each pixel point, determining that the display function verification result of the display module 102 is verification passing; and/or if the pixel value comparison result represents the first pixel value of any pixel point and is different from the second pixel value of the pixel point, determining that the display function verification result of the display module 102 is verification failure.

In this embodiment, the verification module 101 determines the verification result of the display function of the display module 102 as verification passing only when the first display frame data and the second display frame data are identical, that is, all the pixel points satisfy the first pixel value and the second pixel value to be identical. Therefore, after the pixel value comparison result of each pixel point is obtained, only if the pixel value comparison result of each pixel point indicates that the first pixel value and the second pixel value of each pixel point are the same, the verification module 101 determines the verification result of the display function of the display module 102 as verification passing. If the first pixel value of a certain pixel point is different from the corresponding second pixel value, the verification module 101 determines that the verification result of the display function of the display module 102 is not passed.

For example, the first pixel value obtained by the verification module 101 may include: the pixel value A1 of the pixel a, the pixel value B1 of the pixel B, the pixel value C1 of the pixel C, and the pixel value D1 of the pixel D, and the second pixel value may include: pixel value A2 of pixel a, pixel value B2 of pixel B, pixel value C2 of pixel C, and pixel value D2 of pixel D. Only if the pixel value A1 is equal to the pixel value A2, the pixel value B1 is equal to the pixel value B2, the pixel value C1 is equal to the pixel value C2, and the pixel value D1 is equal to the pixel value D2, the verification module 101 determines that the verification result of the display function of the display module 102 is verification passing, and if the first pixel value and the second pixel value of a certain pixel point are not equal, for example, the pixel value B1 is not equal to the pixel value B2, the verification module 101 determines that the verification result of the display function of the display module 102 is not verification passing.

In this embodiment, the verification module 101 may compare the first pixel value and the second pixel value of each pixel point, and determine the verification result of the display function of the display module 102 as verification passing only when the first pixel value and the second pixel value of all the pixel points are equal, so that the accuracy of the obtained verification result of the display function may be further improved.

In one embodiment, as shown in fig. 4, step S204 may further include:

step S401, a first frame data identifier corresponding to the first display frame data and a second frame data identifier corresponding to the second display frame data are obtained.

If the aspect ratio of the display frame data is larger, the data amount of the corresponding pixel point is also larger, and if the display function verification result of the display module 102 needs to be determined by comparing the first pixel value and the second pixel value of each pixel point, excessive time may be spent, so in this embodiment, the comparison between the display frame data may also be achieved by setting the frame data identifier corresponding to the display frame data, by comparing the frame data identifier, which may be the identifier value of the display frame data obtained by the message digest algorithm, may be the md5 value corresponding to the display frame data, or the hash value corresponding to the display frame data, etc., where the frame data identifier corresponds to the display frame data one by one, that is, the different display frame data corresponds to the different frame data identifier.

Specifically, after the verification module 101 obtains the first display frame data and the second display frame data respectively, the message digest algorithm may be further utilized to calculate an identification value corresponding to the first display frame data, that is, the first frame data identifier, and obtain an identification value corresponding to the second display frame data, that is, the second frame data identifier, respectively.

Step S402, the first frame data identifier and the second frame data identifier are compared, and a display function verification result of the display module 102 is obtained according to the comparison result of the first frame data identifier and the second frame data identifier.

Then, the verification module 101 may compare the first frame data identifier obtained in step S401 with the second frame data identifier, thereby obtaining a comparison result of the first frame data identifier and the second frame data identifier, to determine whether the first frame data identifier is identical to the second frame data identifier, if the first frame data identifier is identical to the second frame data identifier, it indicates that the first display frame data is identical to the second display frame data, at this time, the verification module 101 may determine that the display function verification result of the display module 102 is verification passing, and if the first frame data identifier is not identical to the second frame data identifier, it indicates that the first display frame data is not identical to the second display frame data, at this time, the verification module 101 may determine that the display function verification result of the display module 102 is verification failing.

In this embodiment, by setting the corresponding frame data identifiers for the first display frame data and the second display frame data, the verification module 101 only needs to compare the frame data identifiers of the first display frame data and the second display frame data, so that the display function verification of the display module 102 can be implemented.

In addition, the display module 102 may include: the display data processing module is used for carrying out data superposition and color adjustment processing on the first display frame data according to a preset time sequence, and the output interface module is used for carrying out coding processing on the first display frame data after the data superposition and color adjustment processing and outputting display signals; as shown in fig. 5, after step S402, the method may further include:

in step S501, if the display function verification result of the display module 102 is that the verification is not passed, a third frame data identifier corresponding to the first display frame data after the color adjustment processing is obtained by superimposing the data.

In this embodiment, the display module 102 may be composed of two sub-modules, which are respectively a sub-module for obtaining the first display frame data according to the time sequence specified by the user, and performing data stacking and color adjustment processing on the first display frame data, that is, a display data processing module, and a sub-module for performing encoding processing on the first display frame data after the data stacking and color adjustment processing, so as to output a display signal, that is, an output interface module. The display module 102 may perform data stacking and color adjustment processing on the obtained first display frame data through the display data processing module, and then further perform encoding processing on the first display frame data after the data stacking and color adjustment processing through the output interface module after obtaining the first display frame data after the data stacking and color adjustment processing, so as to output a corresponding display signal.

In order to quickly determine which module of the display module 102 has a fault when the display function of the display module 102 fails to verify, after the display data processing module in the display module 102 completes the data superposition and color adjustment processing for the first display frame data, the verification module 101 may also call the message digest algorithm to obtain the frame data identifier of the first display frame data after the data superposition and color adjustment processing as the third frame data identifier.

In step S502, a failure module having a failure is determined from the display modules 102 according to the first frame data identifier, the second frame data identifier, and the third frame data identifier.

Finally, after the verification module 102 obtains the first frame data identifier, the second frame data identifier, and the third frame data identifier, the first frame data identifier, the second frame data identifier, and the third frame data identifier may be compared to determine a failure module with a failure in the display module 102.

In this embodiment, the frame data identifier of each corresponding transmission node may be obtained during the data transmission and processing of the first display frame data by the display module 102, and the fault module with a fault in the display module 102 may be quickly searched by using the frame data identifier, so that the efficiency of determining the fault module may be improved.

Further, step S502 may further include: comparing the first frame data identifier with the third frame data identifier, and if the comparison result of the first frame data identifier and the third frame data identifier is that the first frame data identifier is different from the third frame data identifier, taking the display data processing module as a fault module; and/or comparing the second frame data identifier with the third frame data identifier, and if the comparison result of the second frame data identifier and the third frame data identifier is that the second frame data identifier is different from the third frame data identifier, taking the output interface module as a fault module.

After the verification module 101 obtains the first frame data identifier, the second frame data identifier, and the third frame data identifier in step S501, the first frame data identifier and the third frame data identifier may be compared respectively, and the second frame data identifier and the third frame data identifier may be compared, if the comparison result is that the first frame data identifier is different from the third frame data identifier, a fault caused when the display data processing module performs data processing may be indicated, at this time, the display data processing module may be determined to be a fault module, and if the comparison result is that the second frame data identifier is different from the third frame data identifier, a fault caused when the output interface module performs data processing may be indicated, and therefore, the output interface module may be regarded as a fault module.

In this embodiment, the first frame data identifier, the second frame data identifier, and the third frame data identifier may be compared respectively, and a fault module with a fault in the display module 102 is determined according to the comparison result, so that the accuracy of fault module detection on the display module 102 may be improved.

In one embodiment, as shown in FIG. 6, there is also provided a display module verification system, which may include: the display module 602 to be verified, a test module 603 for performing display function test on the display module 602, and a verification module 601 for performing display function verification on the display module 602; wherein,

a verification module 601, configured to obtain, in response to a display function verification request for the display module 602, first display frame data corresponding to the display function verification request;

the display module 602 is configured to obtain first display frame data, and obtain a display signal corresponding to the first display frame data;

the test module 603 is configured to obtain a display signal, and obtain second display frame data corresponding to the display signal;

the verification module 601 is further configured to obtain a display function verification result of the display module 602 according to the first display frame data and the second display frame data.

The display module verification system provided in this embodiment may be composed of three parts, including a display module 602 to be verified, a test module 603 for testing the display function of the display module 602, and a verification module 601 for verifying the display function of the display module 602. Specifically, when the user needs to verify the display function of the display module 602, a display function verification request for the display module 602 may be triggered to the verification module 601, and the verification module 601 may respond to the verification request, thereby obtaining the first display frame data corresponding to the display function verification request. The display module 602 may convert the display frame data into a corresponding display signal for outputting, so after the verification module 601 generates the first display frame data, the first display frame data may be further input to the display module 602, and the display module 602 outputs a display signal for the first display frame data. Then, the display signal output by the display module 602 may be tested by using the test module 603, and by inputting the display signal output by the display module 602 to the test module 603, the test module 603 may be configured to restore the input display signal to display frame data corresponding to the display signal, so after the test module 603 inputs the display signal, the display frame data corresponding to the display signal obtained by the display module 602 may be output by the test module 603 as the second display frame data. At this time, the verification module 601 may determine the display function verification result of the display module 602 based on the first display frame data that is not processed originally and the second display frame data obtained by the test module 603.

In the above display module verification system, the system includes: the display module 602 to be verified, a test module 603 for performing display function test on the display module 602, and a verification module 601 for performing display function verification on the display module 602; wherein, the verification module 601 is configured to obtain, in response to a display function verification request for the display module 602, first display frame data corresponding to the display function verification request; the display module 602 is configured to obtain first display frame data, and obtain a display signal corresponding to the first display frame data; the test module 603 is configured to obtain a display signal, and obtain second display frame data corresponding to the display signal; the verification module 601 is further configured to obtain a display function verification result of the display module 602 according to the first display frame data and the second display frame data. According to the verification method for the display module 602, the display signals output by the display module 602 to be verified can be converted into the second display frame data through the test module 603, the original first display frame data and the second display frame data converted by the display module 602 and the test module 603 can be utilized to obtain the verification result of the display function of the display module 602, and compared with the verification of the display module 602 by observing a display in a mode of human eyes, the verification method for the display module 602 provided by the application does not depend on human eyes for observation, so that the verification efficiency of the display module 602 can be improved.

Further, the verification module 601 is further configured to store the first display frame data into the video memory; the display module 602 is further configured to receive the first display frame data from the video memory, obtain a display signal, and input the display signal to the test module 603; the test module 603 is further configured to receive a display signal from the display module 602, obtain second display frame data, and write the second display frame data into the video memory; the verification module 601 is further configured to obtain first display frame data and second display frame data from the video memory, and obtain a display function verification result according to the first display frame data and the second display frame data.

In this embodiment, the first display frame data and the second display frame data may be stored in a video memory, and the verification module 601 may read the first display frame data and the second display frame data from the video memory respectively, so as to implement the first display frame data and the second display frame data, to obtain corresponding verification results of the display function. Specifically, after the verification module 601 responds to the display function verification request and obtains corresponding first display frame data, the first display frame data may be stored in the video memory, at this time, the display module 602 may receive the first display frame data from the video memory and convert the first display frame data into corresponding display signals, and input the corresponding display signals to the test module 603 communicatively connected to the display module 602, the test module 603 may restore the display signals input by the display module 602 into second display frame data and write the second display frame data into the video memory again, at this time, the verification module 601 may read the first display frame data stored in the video memory and the second display frame data written in by the test module 603, so as to obtain a display function verification result of the display module 602 according to the first display frame data and the second display frame data stored in the video memory.

In this embodiment, the first display frame data and the second display frame data may also be stored in the video memory, so that when the display function verification result of the display module 602 is determined, the first display frame data and the second display frame data may be read from the video memory respectively, and the first display frame data and the second display frame data may be stored through the video memory, so that accuracy of display function verification may be ensured.

Further, the test module 603 may include: a communication receiving module and a video input processing module; the communication receiving module is used for decoding the display signals to obtain color component signals corresponding to the display signals and synchronous time sequence signals corresponding to the display signals; the video input processing module is used for receiving the synchronous time sequence signals and the color component signals from the communication receiving module, and synthesizing the color component signals according to the synchronous time sequence signals to obtain second display frame data.

In this embodiment, the test module 603 may be composed of two parts, namely a communication receiving module RX and a video input processing module VIP, where the communication receiving module RX is mainly used for decoding a received display signal, so as to obtain video signals of each color component, that is, a color component signal, and a synchronous timing signal corresponding to the display signal, for example, may include a horizontal synchronous signal and a vertical synchronous signal. The video input processing module VIP is mainly used for synthesizing the decoded display signals, so as to restore the decoded display signals into display frame data, sample and process each color component signal through the synchronous time sequence signals, and synthesize each color component signal, so as to obtain second display frame data.

In this embodiment, the test module 603 may include: the communication receiving module and the video input processing module, wherein the communication receiving module can decode the display signal output by the display module 602 to obtain a color component signal corresponding to the display signal and a synchronous time sequence signal, and the video input processing module can synthesize the decoded display signal according to the synchronous time sequence signal and restore the decoded display signal to display frame data, thereby realizing the synthesis of the second display frame data and improving the accuracy of the acquisition of the second display frame data.

In addition, the display module 602 may include a display data processing module, and an output interface module; the display data processing module is used for acquiring a preset time sequence and carrying out data superposition and color adjustment processing on the first display frame data according to the time sequence; and the output interface module is used for carrying out coding processing on the first display frame data after the data superposition and color adjustment processing and outputting a display signal.

In this embodiment, the display module 602 may also be composed of two parts, which are respectively a display data processing module and an output interface module, where the display data processing module may acquire a time sequence preset by a user, acquire first display frame data according to the time sequence preset by the user, and perform data superposition and color adjustment processing on the first display frame data to obtain processed first display frame data, and the output interface module is mainly used for performing encoding processing on the processed first display frame data to obtain a corresponding display signal for outputting.

In this embodiment, by setting the display data processing module and the output interface module in the display module 602, the input first display frame data can be converted into corresponding display signals for output, and the display signals can be used to implement display function verification on the display module 602, so that a foundation can be provided for function verification of the display module 602.

In an application example, a display function verification method for a display module of a GPU is also provided, where the display module may mainly include the following functions: the method comprises the steps of (1) generating a time sequence which accords with a standard and comprises a horizontal direction and a vertical direction according to output resolution set by a user, (2) grabbing display data from a pixel matrix of a display memory according to the setting of the time sequence, combining a plurality of layers for a display module supporting the layers, (3) packaging and recombining original output or performing digital-to-analog conversion according to a protocol of an output interface, and outputting a final display signal to a display for display. The working flow of the display module can be shown in fig. 7, and specifically includes the following flows:

the time sequence module generates corresponding display time sequence signals and outputs the display time sequence signals to a subsequent superimposed layer module, one or more superimposed layer modules can be provided, and the superimposed layer module can comprise a first superimposed layer module Primary, a second superimposed layer module Overlay and a third superimposed layer module HW cursor, wherein the function of the superimposed layer module is to acquire display data from a display memory according to the requirement of display time sequence, and when a plurality of superimposed layer modules exist, each superimposed layer is also responsible for superimposing the display data of the layer with the output of the previous layer and outputting the result to the next layer. After the entire superimposing operation is completed, a complete frame of display data is formed. In addition, in modern GPUs, there are various color adjustment modules, such as a first color adjustment module Gamma and a second color adjustment module CSC, to which the display data finally output by the superimposed layers is sent for color adjustment. The final outputs are synchronous timing signals in the horizontal and vertical directions, and primary color component signals (e.g., R, G, B three colors) of a certain color space. The output signals are subjected to coding protocol conversion through an output interface module, and the converted output signals reach the display through a connecting wire and are decoded by a decoding unit in the display for display.

In order to realize the verification of the display function of the display module, the application example designs a hardware module, the module is provided with an input interface, a communication receiving module RX and a video input processing module VIP, the input interface can receive a display signal, the communication receiving module RX can separate a video signal, an audio signal and a synchronous signal from the signal, and the video input processing module VIP can recombine color components of the video signal into pixels and write the pixels into a subsequent module to form original frame data. And a scheme of a hardware module 2 is provided, as shown in fig. 8, in the 1 st scheme, the module is integrated into the GPU, and the VIP is connected to a video memory controller in the GPU, that is, the finally obtained frame data is written into the video memory. In the 2 nd scheme, as shown in fig. 9, a bus processing module PCIE is added at the rear end of the module, that is, an independent PCIE data acquisition card with an input interface is implemented, and finally, the obtained frame data is written into the system memory through the PCIE bus. After the complete frame data is written into the video memory or the internal memory, the software only needs to compare the initial output frame data A with the written frame data B, and only when the time sequence module, the superposition layer module, the color adjustment module, the output interface and the input interface work normally, the two frame data can be completely the same. In the actual test process, the output interface and the input interface are connected, software can automatically generate test sample data, select a certain time sequence from a supported time sequence list, select a specific superposition mode, compare two frames of data in a video memory or a memory when data writing is completed, and pass test items when the data is completed to be the same.

Specifically, the input interface included in the hardware module may be of a specific type that is independent of the signal receiving interface in the display from the circuitry. Its function is just opposite to the output interface, its input is the signal coded according to the corresponding interface protocol, after the processing of the following communication receiving module RX, it is output as decoded each component video signal, horizontal and vertical synchronous time sequence signal and audio signal. The synchronous time sequence signals and the color component signals are processed by an internal video input processing module, the recombined pixel data can be obtained, the video input processing module can be combined to obtain one row of display pixels according to the horizontal direction synchronous signals, and then one frame of display pixels can be obtained according to the vertical synchronous signals, and the pixels can be written into a video memory or a memory line by line and frame by the video input processing module. The working principle of the communication receiving module RX may be as shown in fig. 10.

The output of the communication receiving module RX is a video component signal, an audio signal, and control signals of horizontal and vertical synchronization, and in a test scene, the original pixel matrix data needs to be obtained, so that the video input processing module VIP needs to be used next, the input of the video input processing module VIP is a component signal of the video, the function of the video input processing module VIP is to sample three components according to a pixel clock, and the three components are synthesized into a single pixel to be written into a subsequent storage unit. In the video signal transmission process, only in the time sequence interval of horizontal validity and vertical validity, the valid video data is transmitted, so that horizontal and vertical synchronization signals are required to be input. Between the two vertical synchronization signals is a complete frame of data. In summary, the function of the video input processing module VIP can be shown in fig. 11.

After the frame data is written, two frame data are stored in the video memory or the internal memory, firstly, the frame data are initially displayed, secondly, the frame data are finally written into the video memory or the internal memory through the input module, and after the two frame data are obtained, the software only needs to read the video memory or the internal memory and compare pixel values of the two frame data one by one, so that whether all modules on a data transmission link work normally can be verified.

As shown in fig. 12, in the final step of the above process, the software needs to compare all pixel values of two frames of data, and when the aspect ratio of the frame data is large, the data size of the pixels will be very large, and the whole comparison process needs to take much time. In addition, when one test fails, i.e., there are unequal pixel values, it is indicated that a module in the overall data transmission is functionally defective, but there is no good way to quickly determine which module the problem is at. To solve both problems, a message digest algorithm unit may be added in several key blocks, which may calculate md5 values for all pixel values during horizontal and vertical validity periods from the timing signal and update into the register during the vertical synchronization signal. The software only needs to calculate the md5 value of the original data by itself when generating the frame data A, when the data is completely transmitted and written into the video memory, the md5 calculation units at the key modules already calculate the md5 value of the transmitted frame data, and if not, the data can be rapidly judged to be consistent by comparing the md5 values, and if not, the data can be known to change after passing through the key modules by comparing the md5 values section by section. The hardware flow for adding md5 computation units may be as shown in fig. 13.

In fig. 13, two md5 calculation units are added, firstly, after the layer synthesis and the color adjustment module are superimposed, secondly, after the video input processing module VIP of the input part, software needs to calculate the md5 value of the frame data a by itself when generating the frame data a, then after the data transmission starts, when the time sequence signal is detected to reach the vertical synchronization position, the md5 value of the first unit is read, when the video input processing module VIP completely writes the data into the video memory or the internal memory, the md5 value of the second unit is read, finally, the three are compared, and if the three are consistent, the test is passed. If the original md5 is inconsistent with the md5 of the first unit, the superposition layer module or the color adjustment module is not normal, and if the former two are inconsistent with the md5 of the second unit, the output interface related module is not normal. The data size of the md5 value is very small and the comparison process can be completed in a very short time. The newly added md5 calculation unit greatly shortens the time of single test, and further improves the efficiency of automatic test.

By the application example, the whole display module process does not need human intervention. Compared with the traditional human eye observation result, the test mode can greatly improve the efficiency, and completely eliminates errors of human eye observation aiming at the comparison of full pixel values of frame data. And various boundary conditions can be set through variables and random combination of the conditions, then the variables are applied to a sample data generation process, sample data containing various boundary conditions can be randomly generated, and then the various boundary conditions can be covered through automatic testing of software.

It should be understood that, although the steps in the flowcharts related to the embodiments described above are sequentially shown as indicated by arrows, these steps are not necessarily sequentially performed in the order indicated by the arrows. The steps are not strictly limited to the order of execution unless explicitly recited herein, and the steps may be executed in other orders. Moreover, at least some of the steps in the flowcharts described in the above embodiments may include a plurality of steps or a plurality of stages, which are not necessarily performed at the same time, but may be performed at different times, and the order of the steps or stages is not necessarily performed sequentially, but may be performed alternately or alternately with at least some of the other steps or stages.

Based on the same inventive concept, the embodiment of the application also provides a display module verification device for realizing the above related display module verification method. The implementation of the solution provided by the device is similar to the implementation described in the above method, so the specific limitation in the embodiments of the display module verification device or devices provided below may refer to the limitation of the display module verification method hereinabove, and will not be repeated herein.

In one embodiment, as shown in fig. 14, there is provided a display module authentication apparatus including: a first data acquisition module 1401, a display signal acquisition module 1402, a second data acquisition module 1403, and a verification result acquisition module 1404, wherein:

a first data acquisition module 1401, configured to acquire first display frame data corresponding to a display function verification request in response to the display function verification request for the display module to be verified;

a display signal acquisition module 1402, configured to input the first display frame data into the display module, and obtain a display signal for the first display frame data through the display module;

a second data obtaining module 1403, configured to input a display signal to a testing module for performing a display function test on the display module, and obtain second display frame data corresponding to the display signal through the testing module;

the verification result obtaining module 1404 is configured to obtain a display function verification result of the display module according to the first display frame data and the second display frame data.

In one embodiment, the first display frame data and the second display frame data respectively correspond to pixel values of a plurality of pixel points; the verification result obtaining module 1404 is further configured to obtain a first pixel value of each pixel corresponding to the first display frame data, and obtain a second pixel value of each pixel corresponding to the second display frame data; respectively comparing the first pixel value of each pixel point with the second pixel value of each pixel point to obtain a pixel value comparison result of each pixel point; and obtaining a display function verification result of the display module according to the pixel value comparison result of each pixel point.

In one embodiment, the verification result obtaining module 1404 is further configured to determine that the verification result of the display function of the display module is verification pass if the pixel value comparison result represents the first pixel value of each pixel point and is the same as the second pixel value of each pixel point; and if the pixel value comparison result represents the first pixel value of any pixel point and is different from the second pixel value of the pixel point, determining that the display function verification result of the display module is verification failure.

In one embodiment, the verification result obtaining module 1404 is further configured to obtain a first frame data identifier corresponding to the first display frame data and a second frame data identifier corresponding to the second display frame data; and comparing the first frame data identifier with the second frame data identifier, and obtaining a display function verification result of the display module according to the comparison result of the first frame data identifier and the second frame data identifier.

In one embodiment, a display module includes: the display data processing module is used for carrying out data superposition and color adjustment processing on the first display frame data according to a preset time sequence, and the output interface module is used for carrying out coding processing on the first display frame data after the data superposition and color adjustment processing and outputting display signals; display module verifying device still includes: the fault determining module is used for acquiring a third frame data identifier corresponding to the first display frame data after the data superposition and color adjustment processing if the display function verification result of the display module is that verification is not passed; and determining a fault module with faults from the display modules according to the first frame data identifier, the second frame data identifier and the third frame data identifier.

In one embodiment, the fault determining module is further configured to compare the first frame data identifier with the third frame data identifier, and if the comparison result of the first frame data identifier and the third frame data identifier is that the first frame data identifier is not the same as the third frame data identifier, the display data processing module is used as the fault module; and the output interface module is used for comparing the second frame data identifier with the third frame data identifier, and if the comparison result of the second frame data identifier and the third frame data identifier is that the second frame data identifier is different from the third frame data identifier, the output interface module is used as a fault module.

The respective modules in the above-described display module authentication apparatus may be implemented in whole or in part by software, hardware, and a combination thereof. The above modules may be embedded in hardware or may be independent of a processor in the computer device, or may be stored in software in a memory in the computer device, so that the processor may call and execute operations corresponding to the above modules.

It should be noted that, user information (including but not limited to user equipment information, user personal information, etc.) and data (including but not limited to data for analysis, stored data, presented data, etc.) referred to in the present application are information and data authorized by the user or sufficiently authorized by each party.

Those skilled in the art will appreciate that implementing all or part of the above described methods may be accomplished by way of a computer program stored on a non-transitory computer readable storage medium, which when executed, may comprise the steps of the embodiments of the methods described above. Any reference to memory, database, or other medium used in the various embodiments provided herein may include at least one of non-volatile and volatile memory. The nonvolatile Memory may include Read-Only Memory (ROM), magnetic tape, floppy disk, flash Memory, optical Memory, high density embedded nonvolatile Memory, resistive random access Memory (ReRAM), magnetic random access Memory (Magnetoresistive Random Access Memory, MRAM), ferroelectric Memory (Ferroelectric Random Access Memory, FRAM), phase change Memory (Phase Change Memory, PCM), graphene Memory, and the like. Volatile memory can include random access memory (Random Access Memory, RAM) or external cache memory, and the like. By way of illustration, and not limitation, RAM can be in the form of a variety of forms, such as static random access memory (Static Random Access Memory, SRAM) or dynamic random access memory (Dynamic Random Access Memory, DRAM), and the like. The databases referred to in the various embodiments provided herein may include at least one of relational databases and non-relational databases. The non-relational database may include, but is not limited to, a blockchain-based distributed database, and the like. The processors referred to in the embodiments provided herein may be general purpose processors, central processing units, graphics processors, digital signal processors, programmable logic units, quantum computing-based data processing logic units, etc., without being limited thereto.

The technical features of the above embodiments may be arbitrarily combined, and all possible combinations of the technical features in the above embodiments are not described for brevity of description, however, as long as there is no contradiction between the combinations of the technical features, they should be considered as the scope of the description.

The above examples only represent a few embodiments of the present application, which are described in more detail and are not to be construed as limiting the scope of the present application. It should be noted that it would be apparent to those skilled in the art that various modifications and improvements could be made without departing from the spirit of the present application, which would be within the scope of the present application. Accordingly, the scope of protection of the present application shall be subject to the appended claims.

Claims

1. A display module verification method, the method comprising:

2. The method of claim 1, wherein the first display frame data and the second display frame data each correspond to a pixel value of a plurality of pixel points;

the step of obtaining a display function verification result of the display module according to the first display frame data and the second display frame data includes:

acquiring a first pixel value of each pixel corresponding to the first display frame data, and acquiring a second pixel value of each pixel corresponding to the second display frame data;

respectively comparing the first pixel value of each pixel point with the second pixel value of each pixel point to obtain a pixel value comparison result of each pixel point;

and obtaining a display function verification result of the display module according to the pixel value comparison result of each pixel point.

3. The method according to claim 2, wherein the obtaining the display function verification result of the display module according to the pixel value comparison result of each pixel point includes:

if the pixel value comparison result represents the first pixel value of each pixel point and is respectively the same as the second pixel value of each pixel point, determining that the display function verification result of the display module is verification passing;

and/or

If the pixel value comparison result represents the first pixel value of any pixel point and is different from the second pixel value of the pixel point, determining that the display function verification result of the display module is verification failure.

4. The method according to claim 1, wherein the obtaining the display function verification result of the display module according to the first display frame data and the second display frame data includes:

acquiring a first frame data identifier corresponding to the first display frame data and a second frame data identifier corresponding to the second display frame data;

and comparing the first frame data identifier with the second frame data identifier, and obtaining a display function verification result of the display module according to the comparison result of the first frame data identifier and the second frame data identifier.

5. The method of claim 4, wherein the display module comprises: the display data processing module is used for carrying out data superposition and color adjustment processing on the first display frame data according to a preset time sequence, and the output interface module is used for carrying out coding processing on the first display frame data after the data superposition and color adjustment processing and outputting the display signals;

after the display function verification result of the display module is obtained, the method further comprises the following steps:

if the display function verification result of the display module is that verification is not passed, acquiring a third frame data identifier corresponding to the data superposition and the first display frame data after the color adjustment processing;

and determining a fault module with faults from the display modules according to the first frame data identifier, the second frame data identifier and the third frame data identifier.

6. The method of claim 5, wherein determining a faulty module from the display modules based on the first frame data identification, the second frame data identification, and the third frame data identification comprises:

comparing the first frame data identifier with the third frame data identifier, and taking the display data processing module as the fault module if the comparison result of the first frame data identifier and the third frame data identifier is that the first frame data identifier is different from the third frame data identifier;

And/or

And comparing the second frame data identifier with the third frame data identifier, and taking the output interface module as the fault module if the comparison result of the second frame data identifier and the third frame data identifier is that the second frame data identifier is different from the third frame data identifier.

7. A display module verification system, the system comprising: the display module to be verified, a test module for testing the display function of the display module, and a verification module for verifying the display function of the display module; wherein,

8. The system of claim 7, wherein the system further comprises a controller configured to control the controller,

the verification module is further used for storing the first display frame data into a video memory;

the display module is further configured to receive the first display frame data from the video memory, obtain the display signal, and input the display signal to the test module;

the test module is further configured to receive the display signal from the display module, obtain the second display frame data, and write the second display frame data into the video memory;

the verification module is further configured to obtain the first display frame data and the second display frame data from the video memory, and obtain the verification result of the display function according to the first display frame data and the second display frame data.

9. The system of claim 8, wherein the test module comprises: a communication receiving module and a video input processing module;

the communication receiving module is used for decoding the display signal to obtain a color component signal corresponding to the display signal and a synchronous time sequence signal corresponding to the display signal;

The video input processing module is configured to receive the synchronization timing signal and the color component signal from the communication receiving module, and synthesize the color component signal according to the synchronization timing signal to obtain the second display frame data.

10. The system of claim 8, wherein the display module comprises a display data processing module, and an output interface module;

the display data processing module is used for acquiring a preset time sequence and carrying out data superposition and color adjustment processing on the first display frame data according to the time sequence;

the output interface module is used for carrying out coding processing on the first display frame data after the data superposition and color adjustment processing and outputting the display signal.

11. A display module verification apparatus, the apparatus comprising:

a display signal acquisition module, configured to input the first display frame data into the display module, and obtain a display signal for the first display frame data through the display module;