CN117914983A - Method and equipment for testing mobile phone display screen - Google Patents
Method and equipment for testing mobile phone display screen Download PDFInfo
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Abstract
The application aims to provide a testing method and equipment for a mobile phone display screen, which are characterized in that a tested sample is fixed on a testing platform and a communication wire is inserted; moving the brightness meter to the position right above the center point of the display screen of the sample to be tested, wherein the sample to be tested is a mobile phone; selecting a target test item of a display screen of a tested sample, and configuring a corresponding target test environment for the target test item, wherein the target test item comprises at least one; testing target test items of a display screen of a tested sample in a target test environment to obtain test data of the target test items; the test data of at least one target test item are respectively analyzed, and the analysis results are written into the report to obtain the test report of the display screen of the tested sample, so that a great amount of time and effort of a test engineer are saved, the test efficiency of the test engineer is greatly improved, and the test engineer is liberated from complicated physical and mental labor.
Description
Technical Field
The present application relates to the field of computer technologies, and in particular, to a method and an apparatus for testing a mobile phone display screen.
Background
Along with the increasing demands of manufacturers of mobile phone display screens in China on automatic test display screens, when engineers want to test the brightness and chromaticity uniformity, contrast, visual angle and Gamma of the mobile phone display screens, the engineers can only manually set up a test environment, manually adjust the focal length between a brightness meter CS2000 and a tested sample display screen, manually de-align the center of the display screen and manually move to finish each test item, thus resulting in low moving precision, and incapability of well ensuring the repeatability of the test environment, thereby influencing the inaccuracy of the calculated parameter data, and having low and inaccurate repeated test efficiency and greatly increasing the workload of the engineers; because the whole process of obtaining the parameter values is completed manually, the workload is increased along with the increase of the number of the display screens of the samples to be tested, and the whole test flow is virtually occupied for a large part of time, so that the efficiency and the accuracy of the whole test are seriously affected; in addition, the repeatability of measuring the parameters of the display screen of the same tested sample is not good, because errors exist in manual testing, the two test environments cannot be guaranteed to be completely consistent, and engineers are required to have professional mathematics and accurate judgment capability, so that the limitation and the requirement of a plurality of tests are increased intangibly.
Disclosure of Invention
The application aims to provide a testing method and equipment for a mobile phone display screen, which realize full-automatic control of movement of a tested sample, automatic focusing of a brightness meter and automatic alignment of the center point of the display screen of the tested sample, simultaneously can automatically control the display screen of the tested sample to switch pictures required by different testing scenes, and can automatically calculate parameter data required by each testing item and then assemble a testing report, thus saving a lot of labor time cost, improving the accuracy of the testing data, having strong repeatability, being capable of quickly and accurately obtaining the parameters corresponding to each testing item of the display screen of the tested sample, fully automatically running the whole testing flow without manual intervention, greatly improving the testing efficiency of a testing engineer, and freeing the testing engineer from complicated physical and mental labor.
According to one aspect of the application, there is provided a method for testing a display screen of a mobile phone, wherein the method comprises:
Fixing a tested sample on a test platform and inserting a communication wire;
Moving a brightness meter to a position right above the center point of a display screen of the sample to be tested, wherein the sample to be tested is a mobile phone;
selecting a target test item of a display screen of the tested sample, and configuring a corresponding target test environment for the target test item, wherein the target test item comprises at least one;
testing target test items of a display screen of the tested sample in the target test environment to obtain test data of the target test items;
And respectively analyzing the test data of the at least one target test item, and writing the analysis results into a report to obtain a test report of the display screen of the tested sample.
Further, in the above method, if the target test item is a luminance and chrominance uniformity test item,
Setting the length W and the width H of a display screen of the tested sample, setting 9 test points with the same size and uniform distribution on the display screen, wherein the diameter of each test point is as large as: the smaller value of 0.2H or 0.2W is 10 pixels at minimum;
the configuring the corresponding target test environment for the target test item includes:
Switching a W255 pure white picture for a display screen of the tested sample, so that the whole display screen is in a white scene test environment;
The method for testing the target test item of the display screen of the tested sample in the target test environment, to obtain the test data of the target test item, comprises the following steps:
the luminance meter sequentially moves to a measured luminance value Lv and chrominance values u and v right above each test point according to the set 9 test points, wherein the 9 test points comprise center points;
Screening a brightness value Lv set of 9 test points obtained by the test, selecting a brightness maximum value Lv max and a brightness minimum value Lv min, calculating a brightness uniformity index LUN= (Lv min/Lvmax) ×100%, and storing;
Comparing the chromaticity value u 01、v01 of the center point P 0 of the tested sample with the chromaticity values u i、vi of the remaining 8 test points, and calculating the chromaticity uniformity Deltauv 1 by the calculation formula:
Obtaining the chromaticity uniformity delta uv1, selecting the maximum value of the calculated delta uv1 as the chromaticity uniformity index of the display screen of the tested sample, and storing.
Further, in the above method, if the target test item is a contrast test item,
The configuring the corresponding target test environment for the target test item includes:
Switching a W255 pure white picture for a display screen of the tested sample, so that the whole display screen is in a white scene test environment;
The method for testing the target test item of the display screen of the tested sample in the target test environment, to obtain the test data of the target test item, comprises the following steps:
the brightness meter measures a first brightness value Lv w of a center point P 0 of a white screen of a display screen of the tested sample;
Switching a display screen of the tested sample into a pure black picture of W0, so that the whole display screen is in a black scene test environment;
The brightness meter measures a second brightness value Lv b of a center point P 0 of a black screen of a display screen of the tested sample;
According to the first luminance value Lv w and the second luminance value Lv b; and calculating and storing the contrast ratio CR=Lv w/Lvb of the display screen of the tested sample.
Further, in the above method, if the target test item is a visual angle test item,
The configuring the corresponding target test environment for the target test item includes:
Switching a gray-scale picture of R=G=B=200 for a display screen of the tested sample, so that the whole display screen is in a gray scene test environment;
The method for testing the target test item of the display screen of the tested sample in the target test environment, to obtain the test data of the target test item, comprises the following steps:
The brightness meter vertically measures a third brightness value Lv 0 and a chromaticity value u 02、v02 of a central point P 0 of a display screen of the measured sample;
Tilting the luminance meter to respectively measure a fourth luminance value Lv j and a chrominance value u j、vj in the 12 o 'clock direction, the 6 o' clock direction, the 3 o 'clock direction and the 9 o' clock direction of a display screen of the measured sample;
Δuv2 is represented by a vision quality IQ calculation formula iq=lr θ -28, wherein the vision angle LR θ＝Lθ/L0,Lθ represents a luminance value of a center point P 0 of the display screen measured in the 12 o 'clock direction, the 6 o' clock direction, the 3 o 'clock direction and the 9 o' clock direction, L 0 represents a luminance value of P 0 measured in a direction of the center point of the display screen facing the sample to be measured, Δuv2 represents a color difference, and the color difference Δuv2 is calculated by a color difference Δuv2 formula:
When the visual quality IQ is smaller than 0.36, the calculated visual angle LR θ is the visual angle range of the display screen of the tested sample, and the visual angle range is stored.
Further, in the above method, if the target test item is a Gamma test item,
The configuring the corresponding target test environment for the target test item includes:
Switching a W255 pure white picture for a display screen of the tested sample, so that the whole display screen is in a white scene test environment;
The method for testing the target test item of the display screen of the tested sample in the target test environment, to obtain the test data of the target test item, comprises the following steps:
The brightness meter measures a brightness value Lv w255 of a central point P 0 of a white screen of the display screen;
Switching a display screen of the tested sample into a W128 gray-scale white picture, so that the whole display screen is in a gray-scale white scene test environment;
The brightness meter measures a brightness value Lv w128 of a central point P 0 of a white screen of the display screen;
By the calculation formula: lv w255/Lvw128＝(gray1/gray2)r, calculating an index r, wherein gray1 represents gray level equal to 255, gray2 represents gray level equal to 128, and taking the calculated index r as a Gamma value of a display screen of the tested sample and storing the Gamma value.
According to another aspect of the present application, there is also provided a non-volatile storage medium having stored thereon computer readable instructions which, when executed by a processor, cause the processor to implement a method of testing a display of a mobile phone, for example.
According to another aspect of the present application, there is also provided a test apparatus for a display of a mobile phone, wherein the apparatus includes:
one or more processors;
a computer readable medium for storing one or more computer readable instructions,
And when the one or more computer readable instructions are executed by the one or more processors, the one or more processors are caused to implement a method for testing a mobile phone display screen, such as a server.
Compared with the prior art, the application fixes the tested sample on the test platform and inserts the communication line; moving a brightness meter to a position right above the center point of a display screen of the sample to be tested, wherein the sample to be tested is a mobile phone; selecting a target test item of a display screen of the tested sample, and configuring a corresponding target test environment for the target test item, wherein the target test item comprises at least one; testing target test items of a display screen of the tested sample in the target test environment to obtain test data of the target test items; the test data of the at least one target test item are respectively analyzed, analysis results are written into reports to obtain a test report of the display screen of the tested sample, and each target test item of the display screen of the tested sample is automatically calculated and obtained: the brightness and chromaticity uniformity, the contrast, the visual angle and the Gamma value are not needed to be manually set up by a test engineer, the brightness meter is manually focused and manually aligns to the center point of the tested sample display screen, the tested sample display screen is manually controlled to switch different test scene pictures, the operation of manually acquiring calculation data and the like is avoided, the test engineer spends a great deal of time to set up the environment, focus on the center point, analyze the data and the like, a great deal of time and effort of the test engineer is saved, the test efficiency of the test engineer is greatly improved, and the test engineer is liberated from complicated physical and mental labor.
Drawings
Other features, objects and advantages of the present application will become more apparent upon reading of the detailed description of non-limiting embodiments, made with reference to the accompanying drawings in which:
FIG. 1 is a flow chart of a method for testing a display of a mobile phone according to an aspect of the present application;
fig. 2 shows a test flow chart of a test method of a mobile phone display screen in a practical application scenario according to an aspect of the present application.
The same or similar reference numbers in the drawings refer to the same or similar parts.
Detailed Description
The application is described in further detail below with reference to the accompanying drawings.
In one exemplary configuration of the application, the terminal, the device of the service network, and the trusted party each include one or more processors (CPUs), input/output interfaces, network interfaces, and memory.
The memory may include volatile memory in a computer-readable medium, random Access Memory (RAM) and/or nonvolatile memory, such as Read Only Memory (ROM) or flash memory (flash RAM). Memory is an example of computer-readable media.
Computer readable media, including both non-transitory and non-transitory, removable and non-removable media, may implement information storage by any method or technology. The information may be computer readable instructions, data structures, modules of a program, or other data. Examples of storage media for a computer include, but are not limited to, phase change memory (PRAM), static Random Access Memory (SRAM), dynamic Random Access Memory (DRAM), other types of Random Access Memory (RAM), read Only Memory (ROM), electrically Erasable Programmable Read Only Memory (EEPROM), flash memory or other memory technology, compact disc read only memory (CD-ROM), digital Versatile Discs (DVD) or other optical storage, magnetic cassettes, magnetic tape disk storage or other magnetic storage devices, or any other non-transmission medium, which can be used to store information that can be accessed by a computing device. Computer readable media, as defined herein, does not include non-transitory computer readable media (transmission media), such as modulated data signals and carrier waves.
With the increasing demands of manufacturers of mobile phone display screens in China on automatic test display screens, a test scheme capable of completely realizing accurate and efficient automatic test of various parameters of the display screens has been developed, and as shown in fig. 1, the method for testing the mobile phone display screen provided by one aspect of the application can be completed by adopting a C++ development language, and comprises the following steps: step S1, step S12, step S13, step S14 and step S15, wherein the method specifically comprises the following steps:
s11, fixing a tested sample on a test platform and inserting a communication line;
Step S12, moving the brightness meter to the position right above the center point of the display screen of the tested sample, and realizing automatic focusing by vertically moving up and down, wherein the tested sample can comprise, but is not limited to, a mobile phone and the like; in a preferred embodiment of the application, the luminance may preferably be CS2000 luminance.
Step S13, selecting a target test item of a display screen of the tested sample, and configuring a corresponding target test environment for the target test item, wherein the target test item comprises at least one;
step S14, testing target test items of a display screen of the tested sample in the target test environment to obtain test data of the target test items;
and S15, respectively analyzing the test data of the at least one target test item, and writing the analysis results into a report to obtain a test report of the display screen of the tested sample.
Here, the target test items include, but are not limited to, a luminance and chrominance uniformity test item, a contrast test item, a visual angle test item, a Gamma test item, and the like of the display screen of the sample to be tested.
Through the steps S11 to S15, each target test item of the display screen of the tested sample obtained by automatic calculation is realized: the brightness and chromaticity uniformity, the contrast, the visual angle and the Gamma value are not needed to be manually set up by a test engineer, the brightness meter is manually focused and manually aligns to the center point of the tested sample display screen, the tested sample display screen is manually controlled to switch different test scene pictures, the operation of manually acquiring calculation data and the like is avoided, the test engineer spends a great deal of time to set up the environment, focus on the center point, analyze the data and the like, a great deal of time and effort of the test engineer is saved, the test efficiency of the test engineer is greatly improved, and the test engineer is liberated from complicated physical and mental labor.
In the embodiment of the application, the test system is developed mainly aiming at automatically testing several test items of brightness and chromaticity uniformity, contrast, visual angle and Gamma of a mobile phone display screen and automatically generating a test report, the whole test process is fully automatic, no manual participation is needed, that is, a test engineer only needs to place a tested sample on a test platform, fix the test platform and insert a communication line to execute a subsequent test process, the process of all standard test items can be automatically run out, finally, a report of an analysis result of test data of the test item of the display screen containing the tested sample is generated, the test engineer can check the test report to judge whether the display screen of the tested sample is good or bad, thereby providing a reference basis for scientific decision of the test engineer. The testing process for each test item is further described below:
as shown in fig. 2, if the target test item is a luminance and chrominance uniformity test item,
Setting the length W and the width H of a display screen of the tested sample, setting 9 test points with the same size and uniform distribution on the display screen, wherein the diameter of each test point is as large as: the smaller value of 0.2H or 0.2W is 10 pixels at minimum;
the configuring a corresponding target test environment for the target test item in step S13 specifically includes:
Switching a W255 pure white picture for a display screen of the tested sample, so that the whole display screen is in a white scene test environment;
the step S14 is performed on a target test item of the display screen of the tested sample in the target test environment, to obtain test data of the target test item, and specifically includes:
the luminance meter sequentially moves to a measured luminance value Lv and chrominance values u and v right above each test point according to the set 9 test points, wherein the 9 test points comprise center points;
Screening a brightness value Lv set of 9 test points obtained by the test, selecting a brightness maximum value Lv max and a brightness minimum value Lv min, calculating a brightness uniformity index LUN= (Lv min/Lvmax) ×100%, and storing;
Comparing the chromaticity value u 01、v01 of the center point P 0 of the tested sample with the chromaticity values u i、vi of the remaining 8 test points, and calculating the chromaticity uniformity Deltauv 1 by the calculation formula:
Obtaining chromaticity uniformity Deltauv 1, selecting the maximum value of Deltauv 1 obtained by calculation as the chromaticity uniformity index of the display screen of the tested sample, and storing, wherein the storage mode can include but is not limited to storing in txt text.
Further, as shown in fig. 2, if the target test item is a contrast test item, the configuring a corresponding target test environment for the target test item in step S13 specifically includes:
Switching a W255 pure white picture for a display screen of the tested sample, so that the whole display screen is in a white scene test environment;
the step S14 is performed on a target test item of the display screen of the tested sample in the target test environment, to obtain test data of the target test item, and specifically includes:
the brightness meter measures a first brightness value Lv w of a center point P 0 of a white screen of a display screen of the tested sample;
Switching a display screen of the tested sample into a pure black picture of W0, so that the whole display screen is in a black scene test environment;
The brightness meter measures a second brightness value Lv b of a center point P 0 of a black screen of a display screen of the tested sample;
And calculating the contrast ratio CR=Lv w/Lvb of the display screen of the tested sample according to the calculated first brightness value Lv w and the second brightness value Lv b, and storing test data of the contrast ratio obtained by testing, wherein the storage mode can include but is not limited to storing in txt text.
Further, as shown in fig. 2, if the target test item is a visual angle test item, the configuring a corresponding target test environment for the target test item in step S13 specifically includes:
Switching a gray-scale picture of R=G=B=200 for a display screen of the tested sample, so that the whole display screen is in a gray scene test environment;
the step S14 is performed on a target test item of the display screen of the tested sample in the target test environment, to obtain test data of the target test item, and specifically includes:
The brightness meter vertically measures a third brightness value Lv 0 and a chromaticity value u 02、v02 of a central point P 0 of a display screen of the measured sample;
Tilting the luminance meter to respectively measure a fourth luminance value Lv j and a chrominance value u j、vj in the 12 o 'clock direction, the 6 o' clock direction, the 3 o 'clock direction and the 9 o' clock direction of a display screen of the measured sample;
Δuv2 is represented by a vision quality IQ calculation formula iq=lr θ -28, wherein the vision angle LR θ＝Lθ/L0,Lθ represents a luminance value of a center point P 0 of the display screen measured in the 12 o 'clock direction, the 6 o' clock direction, the 3 o 'clock direction and the 9 o' clock direction, L 0 represents a luminance value of P 0 measured in a direction of the center point of the display screen facing the sample to be measured, Δuv2 represents a color difference, and the color difference Δuv2 is calculated by a color difference Δuv2 formula:
When the visual quality IQ is less than 0.36, the calculated range of the visual angle LR θ is the visual angle range of the display screen of the sample to be tested, and the visual angle range of the display screen of the sample to be tested is saved, where the saving mode may include, but is not limited to, saving in txt text.
Further, as shown in fig. 2, if the target test item is a Gamma test item, the configuring a corresponding target test environment for the target test item in step S13 specifically includes:
Switching a W255 pure white picture for a display screen of the tested sample, so that the whole display screen is in a white scene test environment;
the step S14 is performed on a target test item of the display screen of the tested sample in the target test environment, to obtain test data of the target test item, and specifically includes:
The brightness meter measures a brightness value Lv w255 of a central point P 0 of a white screen of the display screen;
Switching a display screen of the tested sample into a W128 gray-scale white picture, so that the whole display screen is in a gray-scale white scene test environment;
The brightness meter measures a brightness value Lv w128 of a central point P 0 of a white screen of the display screen;
By the calculation formula: lv w255/Lvw128＝(gray1/gray2)r, calculating an index r, wherein gray1 represents gray level equal to 255, gray2 represents gray level equal to 128, and taking the calculated index r as a Gamma value of a display screen of the tested sample, and storing the index r, wherein the storing mode can include but is not limited to storing in txt text.
In the following, after the testing of the luminance and chrominance uniformity test item, the contrast test item, the visual angle test item and the Gamma test item of the display screen of the tested sample is completed, the test data corresponding to the luminance and chrominance uniformity test item, the contrast test item, the visual angle test item and the Gamma test item stored in the txt text are automatically read for analysis, for example, in the step S15, the test data of the at least one target test item are respectively analyzed, and the analysis results are all written into the report to obtain the test report of the display screen of the tested sample, which can be realized in the following manner:
When the test data corresponding to the brightness and chromaticity uniformity or the test data corresponding to the contrast obtained by the test is smaller than the preset standard test value corresponding to the test item, the display screen of the tested sample is unqualified in the two test items of the brightness and chromaticity uniformity and the contrast, and meanwhile, the unqualified analysis result is automatically written into a final test report of the display screen of the tested sample, otherwise, the analysis result which is qualified in the test report is written into the test report.
When the Gamma value obtained by the test is larger than the preset standard Gamma value threshold, the display screen of the tested sample is proved to be unqualified in the test of the Gamma test item, meanwhile, the unqualified analysis result is automatically written into the test report of the display screen of the tested sample, otherwise, the analysis result which is qualified by the test is written into the test report.
Meanwhile, the visual angle range of the display screen of the tested sample is automatically written into the test report of the display screen of the tested sample, so that the test report of the display screen of the tested sample is generated.
According to another aspect of the present application, there is also provided a non-volatile storage medium having stored thereon computer readable instructions which, when executed by a processor, cause the processor to implement a method for testing a display of a mobile phone as described above.
According to another aspect of the present application, there is also provided a test apparatus for a display of a mobile phone, wherein the apparatus includes:
one or more processors;
a computer readable medium for storing one or more computer readable instructions,
The one or more computer readable instructions, when executed by the one or more processors, cause the one or more processors to implement a method for testing a display of a mobile phone as described above.
The details of each embodiment in the test device for the mobile phone display screen can be specifically referred to the corresponding parts of the test method embodiment for the mobile phone display screen, which are not described herein.
In summary, the application fixes the tested sample on the test platform and inserts the communication line; moving a brightness meter to a position right above the center point of a display screen of the sample to be tested, wherein the sample to be tested is a mobile phone; selecting a target test item of a display screen of the tested sample, and configuring a corresponding target test environment for the target test item, wherein the target test item comprises at least one; testing target test items of a display screen of the tested sample in the target test environment to obtain test data of the target test items; the test data of the at least one target test item are respectively analyzed, analysis results are written into reports to obtain a test report of the display screen of the tested sample, and each target test item of the display screen of the tested sample is automatically calculated and obtained: the brightness and chromaticity uniformity, the contrast, the visual angle and the Gamma value are not needed to be manually set up by a test engineer, the brightness meter is manually focused and manually aligns to the center point of the tested sample display screen, the tested sample display screen is manually controlled to switch different test scene pictures, the operation of manually acquiring calculation data and the like is avoided, the test engineer spends a great deal of time to set up the environment, focus on the center point, analyze the data and the like, a great deal of time and effort of the test engineer is saved, the test efficiency of the test engineer is greatly improved, and the test engineer is liberated from complicated physical and mental labor.
It should be noted that the present application may be implemented in software and/or a combination of software and hardware, e.g., using Application Specific Integrated Circuits (ASIC), a general purpose computer or any other similar hardware device. In one embodiment, the software program of the present application may be executed by a processor to perform the steps or functions described above. Likewise, the software programs of the present application (including associated data structures) may be stored on a computer readable recording medium, such as RAM memory, magnetic or optical drive or diskette and the like. In addition, some steps or functions of the present application may be implemented in hardware, for example, as circuitry that cooperates with the processor to perform various steps or functions.
Furthermore, portions of the present application may be implemented as a computer program product, such as computer program instructions, which when executed by a computer, may invoke or provide methods and/or techniques in accordance with the present application by way of operation of the computer. Program instructions for invoking the inventive methods may be stored in fixed or removable recording media and/or transmitted via a data stream in a broadcast or other signal bearing medium and/or stored within a working memory of a computer device operating according to the program instructions. An embodiment according to the application comprises an apparatus comprising a memory for storing computer program instructions and a processor for executing the program instructions, wherein the computer program instructions, when executed by the processor, trigger the apparatus to operate a method and/or a solution according to the embodiments of the application as described above.
It will be evident to those skilled in the art that the application is not limited to the details of the foregoing illustrative embodiments, and that the present application may be embodied in other specific forms without departing from the spirit or essential characteristics thereof. The present embodiments are, therefore, to be considered in all respects as illustrative and not restrictive, the scope of the application being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned. Furthermore, it is evident that the word "comprising" does not exclude other elements or steps, and that the singular does not exclude a plurality. A plurality of units or means recited in the apparatus claims can also be implemented by means of one unit or means in software or hardware. The terms first, second, etc. are used to denote a name, but not any particular order.
Claims (7)
1. A testing method of a mobile phone display screen, wherein the method comprises the following steps:
Fixing a tested sample on a test platform and inserting a communication wire;
Moving a brightness meter to a position right above the center point of a display screen of the sample to be tested, wherein the sample to be tested is a mobile phone;
selecting a target test item of a display screen of the tested sample, and configuring a corresponding target test environment for the target test item, wherein the target test item comprises at least one;
testing target test items of a display screen of the tested sample in the target test environment to obtain test data of the target test items;
And respectively analyzing the test data of the at least one target test item, and writing the analysis results into a report to obtain a test report of the display screen of the tested sample.
2. The method of claim 1, wherein, if the target test item is a luminance and chrominance uniformity test item,
Setting the length W and the width H of a display screen of the tested sample, setting 9 test points with the same size and uniform distribution on the display screen, wherein the diameter of each test point is as large as: the smaller value of 0.2H or 0.2W is 10 pixels at minimum;
the configuring the corresponding target test environment for the target test item includes:
Switching a W255 pure white picture for a display screen of the tested sample, so that the whole display screen is in a white scene test environment;
The method for testing the target test item of the display screen of the tested sample in the target test environment, to obtain the test data of the target test item, comprises the following steps:
the luminance meter sequentially moves to a measured luminance value Lv and chrominance values u and v right above each test point according to the set 9 test points, wherein the 9 test points comprise center points;
Screening a brightness value Lv set of 9 test points obtained by the test, selecting a brightness maximum value Lv max and a brightness minimum value Lv min, calculating a brightness uniformity index LUN= (Lv min/Lvmax) ×100%, and storing;
Comparing the chromaticity value u 01、v01 of the center point P 0 of the tested sample with the chromaticity values u i、vi of the remaining 8 test points, and calculating the chromaticity uniformity Deltauv 1 by the calculation formula:
Obtaining the chromaticity uniformity delta uv1, selecting the maximum value of the calculated delta uv1 as the chromaticity uniformity index of the display screen of the tested sample, and storing.
3. The method of claim 1, wherein, if the target test item is a contrast test item,
The configuring the corresponding target test environment for the target test item includes:
Switching a W255 pure white picture for a display screen of the tested sample, so that the whole display screen is in a white scene test environment;
The method for testing the target test item of the display screen of the tested sample in the target test environment, to obtain the test data of the target test item, comprises the following steps:
the brightness meter measures a first brightness value Lv w of a center point P 0 of a white screen of a display screen of the tested sample;
Switching a display screen of the tested sample into a pure black picture of W0, so that the whole display screen is in a black scene test environment;
The brightness meter measures a second brightness value Lv b of a center point P 0 of a black screen of a display screen of the tested sample;
According to the first luminance value Lv w and the second luminance value Lv b; and calculating and storing the contrast ratio CR=Lv w/Lvb of the display screen of the tested sample.
4. The method of claim 1, wherein, if the target test item is a visual angle test item,
The configuring the corresponding target test environment for the target test item includes:
Switching a gray-scale picture of R=G=B=200 for a display screen of the tested sample, so that the whole display screen is in a gray scene test environment;
The method for testing the target test item of the display screen of the tested sample in the target test environment, to obtain the test data of the target test item, comprises the following steps:
The brightness meter vertically measures a third brightness value Lv 0 and a chromaticity value u 02、v02 of a central point P 0 of a display screen of the measured sample;
Tilting the luminance meter to respectively measure a fourth luminance value Lv j and a chrominance value u j、vj in the 12 o 'clock direction, the 6 o' clock direction, the 3 o 'clock direction and the 9 o' clock direction of a display screen of the measured sample;
Δuv2 is represented by a vision quality IQ calculation formula iq=lr θ -28, wherein the vision angle LR θ＝Lθ/L0,Lθ represents a luminance value of a center point P 0 of the display screen measured in the 12 o 'clock direction, the 6 o' clock direction, the 3 o 'clock direction and the 9 o' clock direction, L 0 represents a luminance value of P 0 measured in a direction of the center point of the display screen facing the sample to be measured, Δuv2 represents a color difference, and the color difference Δuv2 is calculated by a color difference Δuv2 formula:
When the visual quality IQ is smaller than 0.36, the calculated visual angle LR θ is the visual angle range of the display screen of the tested sample, and the visual angle range is stored.
5. The method of claim 1, wherein, if the target test item is a Gamma test item,
The configuring the corresponding target test environment for the target test item includes:
Switching a W255 pure white picture for a display screen of the tested sample, so that the whole display screen is in a white scene test environment;
The method for testing the target test item of the display screen of the tested sample in the target test environment, to obtain the test data of the target test item, comprises the following steps:
The brightness meter measures a brightness value Lv w255 of a central point P 0 of a white screen of the display screen;
Switching a display screen of the tested sample into a W128 gray-scale white picture, so that the whole display screen is in a gray-scale white scene test environment;
The brightness meter measures a brightness value Lv w128 of a central point P 0 of a white screen of the display screen;
By the calculation formula: lv w255/Lvw128＝(gray1/gray2)r, calculating an index r, wherein gray1 represents gray level equal to 255, gray2 represents gray level equal to 128, and taking the calculated index r as a Gamma value of a display screen of the tested sample and storing the Gamma value.
6. A non-volatile storage medium having stored thereon computer readable instructions which, when executed by a processor, cause the processor to implement the method of any of claims 1 to 5.
7. A test device for a display of a mobile phone, wherein the device comprises:
one or more processors;
a computer readable medium for storing one or more computer readable instructions,
When executed by the one or more processors, cause the one or more processors to implement the method of any of claims 1 to 5.
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