CN112530331B - Information detection method and device for split display screen and information detection equipment - Google Patents
Information detection method and device for split display screen and information detection equipment Download PDFInfo
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Abstract
The embodiment of the application provides a method and a device for detecting information of a split screen display and information detection equipment, wherein a plurality of target test coordinates in a split screen display area formed by a slotted zone of the display screen are obtained, optical test data of each target test coordinate are obtained, the optical test data considers the brightness value of each target test coordinate and the chromaticity coordinates of the target test coordinate under different test angles, so that split screen display quality parameters of the split screen display area are obtained through calculation according to the optical test data of each target test coordinate, and at least one of the brightness uniformity, the chromaticity uniformity, the color accuracy and the color cast of the split screen display area is considered by the split screen display quality parameters. Therefore, errors of visual judgment of testers can be eliminated by quantizing the split-screen display quality parameters of the split-screen display area, so that the split-screen phenomenon of the slotted zone can be evaluated by objective quantization indexes, and data support is provided for subsequent optimization of the split-screen phenomenon aiming at the slotted zone.
Description
Technical Field
The application relates to the technical field of display detection, in particular to an information detection method and device for split display and information detection equipment.
Background
With the rapid development of display terminals, the requirements of users on screen occupation ratios are higher and higher, and the comprehensive screen display technology receives more and more attention in the industry. The ideal full-screen terminal front is substantially completely covered by the screen, but is difficult to realize in practical implementation, so that solutions for arranging a slotted area on the display screen, such as a bang screen, a water drop screen, a hole digging screen and the like, are provided. However, the inventor of the present application finds that the design of the slotted zone may cause an abnormal split screen phenomenon in the display process of the display screen, and at present, the split screen phenomenon is determined only by visual observation of a tester, and quantitative evaluation cannot be performed.
Disclosure of Invention
Based on the defects of the existing design, the application provides the information detection method, the device and the equipment for displaying the split screen, the error of visual judgment of testers can be eliminated by quantizing the split screen display quality parameters of the split screen display area, so that the split screen phenomenon of the slotted zone can be evaluated by objective quantization indexes, and data support is provided for the subsequent optimization of the split screen phenomenon aiming at the slotted zone.
According to a first aspect of the present application, an information detection method for split display is provided, which is applied to information detection equipment, where the information detection equipment is used to perform information detection on a display screen to be detected, and the display screen to be detected includes a slotted area, and the method includes:
acquiring a plurality of target test coordinates in a split-screen display area formed by the slotted area, and acquiring optical test data of each target test coordinate, wherein the optical test data comprises a brightness value of each target test coordinate and chromaticity coordinates of the target test coordinate at different test angles;
and calculating to obtain a split-screen display quality parameter of the split-screen display area according to the optical test data of each target test coordinate, wherein the split-screen display quality parameter comprises at least one of brightness uniformity, chromaticity and color cast of the split-screen display area.
In a possible implementation manner of the first aspect, the step of obtaining each target test coordinate in a split-screen display area formed by the slotted area includes:
acquiring display screen parameters of the display screen to be detected, wherein the display screen parameters comprise the size parameters of the slotted area and the size parameters of the display screen to be detected;
determining a test coordinate positioning rule according to the slotting type of the slotting region;
and determining target test coordinates in the split-screen display area according to the test coordinate positioning rule and the display screen parameters.
In a possible implementation manner of the first aspect, the step of determining target test coordinates in the split-screen display area according to the test coordinate positioning rule and the display screen parameter includes:
when the slotting type is a blind hole, obtaining at least one test radius from the test coordinate positioning rule;
determining an origin coordinate according to the blind hole position, and acquiring a coordinate point which is the distance between the blind hole position and the origin coordinate on the display screen to be tested and is the testing radius according to the display screen parameters to form a candidate testing coordinate set corresponding to the testing radius;
and determining target test coordinates in the split-screen display area based on the candidate test coordinate set corresponding to each test radius.
In a possible implementation manner of the first aspect, the test coordinate positioning rule further includes a preset coordinate azimuth corresponding to each test radius, and the step of determining the target test coordinate in the split-screen display area based on the candidate test coordinate set corresponding to each test radius includes:
and aiming at the candidate test coordinate set corresponding to each test radius, obtaining the test coordinate of the coordinate azimuth angle corresponding to the test radius formed by the origin coordinates from the candidate test coordinate set of the test radius, and using the test coordinate as the target test coordinate in the split-screen display area.
In a possible implementation manner of the first aspect, the step of determining target test coordinates in the split-screen display area according to the test coordinate positioning rule and the display screen parameter includes:
when the slotting region is a notch, obtaining a first test distance, a second test distance and a third test distance from the test coordinate positioning rule;
taking the coordinate of the central point of the display screen to be tested as an origin coordinate, and acquiring a first test coordinate set which is on the display screen to be tested and is away from the lower edge of the notch by the first test distance;
traversing from a first candidate test coordinate which is separated from the upper edge of the display screen to be tested by the second test distance and is separated from the two side edges of the notch by the third test distance, and sequentially acquiring subsequent candidate test coordinates to obtain a second test coordinate set;
and taking the test coordinates included by the first test coordinate set and/or the second test coordinate set as target test coordinates in the split-screen display area.
In one possible implementation of the first aspect, the test coordinate locating rule further comprises a coordinate separation distance;
and the two adjacent first test coordinates in the first test coordinate set are separated from each other by the coordinate spacing distance, and the two adjacent second test coordinates in the second test coordinate set are separated from each other by the coordinate spacing distance.
In one possible implementation of the first aspect, the method further comprises:
obtaining the slotting height and the slotting width of the notch based on the display screen parameters;
calculating the maximum total number of target test coordinates according to the slotting height and the slotting width, wherein the distance between the lower edge of the notch and the upper edge of the display screen to be tested is the slotting height; the sum of the distance between the two side edges of the notch and the two side edges corresponding to the display screen to be tested and the width of the notch is the width of the display screen to be tested.
In a possible implementation manner of the first aspect, the calculation formula for calculating the maximum total number of target test coordinates according to the slotting height and slotting width is as follows:
a＝(n+1)+(h-0.5+1)*2
wherein a is the maximum total number of the target test coordinates, n is the slot width, and h is the slot height.
In one possible implementation of the first aspect, the information detection device is electrically connected to the signal generator and the optical test device;
the step of obtaining optical test data for each of the target test coordinates comprises:
controlling the signal generator to send an image test signal of a test picture to the display screen to be tested through the adapter plate so as to drive the display screen to be tested to display the test picture;
and controlling the optical test equipment to be positioned to each target test coordinate of the display screen to be tested, respectively detecting the brightness value of each target test coordinate, and respectively detecting the chromaticity coordinate of each target test coordinate along different test angles.
In a possible implementation manner of the first aspect, the step of calculating a split-screen display quality parameter of the split-screen display area according to the optical test data of each target test coordinate includes:
obtaining a minimum brightness value and a maximum brightness value from the brightness values of all target test coordinates, and obtaining the brightness uniformity of the split-screen display area based on the ratio of the minimum brightness value to the maximum brightness value;
calculating the Euclidean distance between each target test coordinate and the chromaticity coordinates of other target test coordinates under the same test angle to obtain the chromaticity uniformity of the split-screen display area;
calculating a chromaticity difference value on a preset color component between the test chromaticity of each target test coordinate and the standard chromaticity according to the chromaticity coordinate of each target test coordinate, obtaining the chromaticity of each target test coordinate according to the calculated chromaticity difference value, and determining the chromaticity of the split-screen display area according to the chromaticity of each target test coordinate, wherein the preset color component comprises a psychometric lightness component and a psychometric chromaticity component; and calculating the Euclidean distance between the chromaticity coordinates of each target test coordinate at different test angles to obtain the color cast of the split-screen display area.
According to the second aspect of this application, provide an information detection device that shows split screen, be applied to information detection equipment, information detection equipment is used for carrying out information detection to the display screen that awaits measuring, the display screen that awaits measuring includes the slotted zone, the device includes:
the acquisition module is used for acquiring a plurality of target test coordinates in a split-screen display area formed by the slotted area and acquiring optical test data of each target test coordinate, wherein the optical test data comprises a brightness value of each target test coordinate and chromaticity coordinates of the target test coordinate at different test angles;
and the calculating module is used for calculating and obtaining the split-screen display quality parameters of the split-screen display area according to the optical test data of each target test coordinate, wherein the split-screen display quality parameters comprise at least one of brightness uniformity, chromaticity and color cast of the split-screen display area.
According to a third aspect of the present application, there is provided an information detection apparatus, including a machine-readable storage medium having a computer program stored therein and a processor configured to execute the computer program to perform the information detection method of the first aspect or any one of the possible implementation manners of the first aspect.
According to a fourth aspect of the present application, a computer-readable storage medium is provided, in which a computer program is stored, and the computer program is executed by an information detection apparatus to implement the information detection method for displaying split screens according to the first aspect or any one of the possible implementation manners of the first aspect.
Based on any one of the above aspects, the application obtains a plurality of target test coordinates in a split-screen display area formed by the slotted zone, and obtains optical test data of each target test coordinate, the optical test data considers a brightness value of each target test coordinate and chromaticity coordinates of the target test coordinate at different test angles, so as to calculate a split-screen display quality parameter of the split-screen display area according to the optical test data of each target test coordinate, and the split-screen display quality parameter considers at least one of brightness uniformity, chromaticity and color cast of the split-screen display area. Therefore, errors of visual judgment of testers can be eliminated by quantizing the split-screen display quality parameters of the split-screen display area, so that the split-screen phenomenon of the slotted zone can be evaluated by objective quantization indexes, and data support is provided for subsequent optimization of the split-screen phenomenon aiming at the slotted zone.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings that are required to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present application and therefore should not be considered as limiting the scope, and it will be apparent to those skilled in the art that other related drawings can be obtained from the drawings without inventive effort.
FIG. 1 is a diagram illustrating a split display phenomenon of a display screen;
FIG. 2 is a schematic flow chart illustrating an information detection method for split display provided in an embodiment of the present application;
FIG. 3 shows one of the sub-step flow diagrams of step S110 in FIG. 2;
FIG. 4 shows a schematic diagram of target test coordinates obtained when the slotting type is blind;
FIG. 5 shows a schematic of target test coordinates obtained when the slot type is a notch;
FIG. 6 is a schematic block diagram illustrating an application scenario of the split-screen display information detection method provided in the embodiment of the present application;
FIG. 7 is a second schematic flow chart illustrating the sub-steps of step S110 in FIG. 2;
FIG. 8 is a schematic diagram illustrating the detection of chromaticity coordinates of each target test coordinate along different test angles according to an embodiment of the present application;
FIG. 9 is a schematic diagram illustrating functional modules of an information detection apparatus for displaying split screens according to an embodiment of the present application;
fig. 10 is a schematic diagram illustrating a component structure of an information detection apparatus according to an embodiment of the present application, for executing the information detection method for split display shown in fig. 2.
Detailed Description
In order to make the purpose, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it should be understood that the drawings in the present application are for illustrative and descriptive purposes only and are not used to limit the scope of protection of the present application. Further, it should be understood that the schematic drawings are not drawn to scale. The flowcharts used in this application illustrate operations implemented according to some of the embodiments of the present application.
It should be understood that the operations of the flow diagrams may be performed out of order, and steps without logical context may be performed in reverse order or simultaneously. In addition, one skilled in the art, under the guidance of the present disclosure, may add one or more other operations to, or remove one or more operations from, the flowchart.
As a result of the detailed research conducted by the inventor of the present application, the screen is lighted by an OLED (organic light-Emitting Diode) display screen in a Line-by-Line driving manner, the Line where the slotted zone is located lacks pixels, and the voltage of the Data Line (Data Line) needed by the Line where the slotted zone is located is not consistent with other areas of the screen when the screen is lighted, so that the slotted zone needs to be load-compensated by an IC (Integrated Circuit). However, the existing load compensation technology can only weaken the split screen phenomenon of the slotted zone, but the split screen phenomenon still cannot be completely eliminated due to lack of objective data support. For example, as shown in fig. 1, a split display area a1 exists in the display screen a2 for the display screen with the slotted area a11 being a notch (top view) and the display screen with the slotted area a11 being a blind hole (bottom view).
However, currently there is no clear quantitative evaluation scheme for the channeling area. For example, in the related art, screen display parameters (such as brightness, chromaticity, and the like) of the entire OLED display screen are directly tested, and screen splitting display quality parameters (such as brightness uniformity, chromaticity uniformity, and the like) of the OLED display screen are calculated at the positions of the slotted regions, so that whether a screen splitting phenomenon exists around the slotted regions cannot be accurately evaluated. In addition, the area of the slotted zone is small, point taking is difficult during optical testing, and a test coordinate with actual reference significance is not tested in the related technology. Therefore, as described in the foregoing background art, currently, the lightness and heaviness of the split screen phenomenon is determined only by visual observation of a tester, and quantitative evaluation cannot be performed, so that the development of an optimization technique for the split screen phenomenon is technically stagnant.
It should be noted that the above prior art solutions have defects which are the results of practical and careful study by the inventors, and therefore, the discovery process of the above technical problems and the solutions proposed by the following embodiments of the present application for the above problems should be the contribution of the inventors to the present application in the process of invention creation, and should not be understood as technical contents known to those skilled in the art.
Based on the technical problems discovered by the inventor, the embodiment of the application provides an improved information detection method for displaying split screens, so as to solve the problem that the development of an optimization technology for the split screen phenomenon is technically stagnant due to the fact that the lightness and the heaviness of the split screen phenomenon caused by the slotting region are judged only by visual observation of a tester at present and quantitative evaluation cannot be performed.
In detail, according to the information detection method for split display provided by the embodiment of the application, a plurality of target test coordinates in a split display area formed by a slotted zone are obtained, and optical test data of each target test coordinate are obtained, the optical test data considers the brightness value of each target test coordinate and the chromaticity coordinates of the target test coordinate at different test angles, so that a split display quality parameter of the split display area is obtained by calculation according to the optical test data of each target test coordinate, and the split display quality parameter considers at least one of the brightness uniformity, the chromaticity and the color skewness of the split display area.
Therefore, errors of visual judgment of testers can be eliminated by quantizing the split-screen display quality parameters of the split-screen display area, so that the split-screen phenomenon of the slotted zone can be evaluated by objective quantization indexes, and data support is provided for subsequent optimization of the split-screen phenomenon aiming at the slotted zone.
The information detection method for displaying split screens provided by the embodiment of the present application will be described in detail with reference to fig. 2. It should be understood that, in other embodiments, the order of some steps in the information detection method for displaying a split screen of the present embodiment may be interchanged according to actual needs, or some steps may be omitted or deleted.
Referring to fig. 2, the method for detecting information of split display screen may include the following steps, which are described in detail below.
Step S110, a plurality of target test coordinates in a split screen display area formed by the slotted zone are obtained, and optical test data of each target test coordinate are obtained.
In this embodiment, as shown in fig. 1, due to the existence of the slotted area a11, a split-screen display area a1 is generated during the display process of the display screen. The split screen display area may be understood as a display area for performing load compensation, or may be understood as a display area where a data line voltage required by a row does not coincide with that of other areas of the screen.
And step S120, calculating to obtain the split-screen display quality parameters of the split-screen display area according to the optical test data of each target test coordinate.
In this embodiment, the optical test data may include a luminance value for each target test coordinate and a chromaticity coordinate of the target test coordinate at different test angles. The target test coordinate may be a preset test coordinate located in the split-screen display area, or may also be any randomly selected test coordinate, which is not specifically limited herein. In addition, the testing angle may be flexibly set according to actual testing requirements, for example, some preset angles may be used, or any randomly selected angle may be used, and is not limited herein.
In this embodiment, the split-screen display quality parameter may include at least one of luminance uniformity, chrominance uniformity, chromaticity, and color shift of the split-screen display area. For example, the split-screen display quality parameter may include only luminance uniformity, chrominance uniformity, chromaticity, or color shift of the split-screen display area. Alternatively, the split-screen display quality parameter may include two or more combinations of luminance uniformity, chrominance uniformity, chromaticity, and color shift. Alternatively, in some other possible embodiments, other parameters of the split-screen display quality besides the above-mentioned luminance uniformity, chrominance uniformity, color accuracy and color shift may be selected according to actual design requirements.
Based on the above steps, in the embodiment of the application, a plurality of target test coordinates in a split-screen display area formed by the slotted zone are obtained, and optical test data of each target test coordinate is obtained, the optical test data considers the brightness value of each target test coordinate and the chromaticity coordinates of the target test coordinate at different test angles, so that a split-screen display quality parameter of the split-screen display area is obtained by calculation according to the optical test data of each target test coordinate, and the split-screen display quality parameter considers at least one of the brightness uniformity, the chromaticity and the color cast of the split-screen display area. Therefore, errors of visual judgment of testers can be eliminated by quantizing the split-screen display quality parameters of the split-screen display area, so that the split-screen phenomenon of the slotted zone can be evaluated by objective quantization indexes, and data support is provided for subsequent optimization of the split-screen phenomenon aiming at the slotted zone.
In a possible embodiment, considering that the current type of the slotted zone is more, in order to determine each target test coordinate in the split-screen display area more accurately according to the slotted type of the actual slotted zone to improve the test effect of the display quality of the split-screen display area, please refer to fig. 3, and with respect to step S110, it can be implemented by the following sub-steps S111-S113, which are described in detail below.
And a substep S111 of obtaining display screen parameters of the display screen to be tested.
In this embodiment, the display screen parameters may include a size parameter of the slotted area and a size parameter of the display screen to be tested. For example, the size parameter of the slotted zone may include, but is not limited to, a distance between the slotted zone and an edge side of the display screen to be tested, a slotted width of the slotted zone, a slotted height, a length of each slotted edge, and the like. For another example, the size parameter of the display screen to be measured may include, but is not limited to, a length parameter, a width parameter, a diagonal parameter, etc. of the display screen.
And a substep S112, determining a test coordinate positioning rule according to the slotting type of the slotting region.
In this embodiment, the information testing device may pre-configure the test coordinate positioning rules corresponding to different slotting types. For example, the test coordinate positioning rules can be designed specifically by combining the characteristics of actual split screen display areas of different slot types and a large number of experimental test results.
As an alternative example, the information testing device may provide an interactive interface that may provide an interface for the tester to input information during the testing process. For example, a tester can configure display screen parameters of different display screens to be tested through the interface, so that the information testing equipment can automatically call the display screen parameters of the display screen to be tested of the current test. For another example, when a tester enters the slot Type1, the information testing device may automatically invoke the test coordinate positioning rule for the slot Type 1.
And a substep S113, determining each target test coordinate in the split-screen display area according to the test coordinate positioning rule and the display screen parameters.
For example, in one possible implementation, for the sub-step S113, the following will exemplify the determination manner of the target test coordinates by taking the case where the slot type is a blind hole and the case where the slot type is a notch. It should be understood that, in the following description of sub-step S113, only a part of examples, not all examples, and other possible examples or equivalent examples are easily conceivable under the teaching of the embodiments of the present application, and should be considered as the inventive concept of the embodiments of the present application.
For example, when the slotting type is blind hole, the sub-step S113 can be implemented by the following implementation steps.
(1) At least one test radius is obtained from the test coordinate positioning rule.
(2) And determining an origin coordinate according to the blind hole position, and acquiring a distance between the coordinate of the origin and the display screen to be tested according to the display screen parameters and forming a candidate test coordinate set corresponding to the test radius by taking the distance as a coordinate point of the test radius.
For example, the coordinates of any one point of the blind hole may be used as the origin coordinates. For example, the coordinates of the center point of the blind hole may be preferably used as the origin coordinates, or the coordinates of any point on the edge of the blind hole may be used as the origin coordinates, but the present invention is not limited thereto.
In this embodiment, after a large number of actual tests and data analysis, the inventor of the present application finds that, for a slotting region of a blind hole, by dividing a plurality of annular regions by using an origin coordinate corresponding to a position of the blind hole and then selecting a plurality of target test coordinates from a region boundary of the annular regions for testing, the quality parameter condition of split-screen display of the slotting region of the blind hole can be better met. For example, referring to fig. 4, for blind via slotting area a11, for a test radius r1 (e.g., 0.2mm), a candidate test coordinate set may include a coordinate point set x1 consisting of coordinate points 1, 2, 3, 4, 5, 6, 7, 8. For a test radius r2 (e.g., 5mm), the candidate test coordinate set may include a set of coordinate points x2 consisting of coordinate points 9, 10, 11.
(3) And determining target test coordinates in the split-screen display area based on the candidate test coordinate set corresponding to each test radius.
In one possible embodiment, in order to reduce the amount of calculation and ensure the testing effect, further coordinate screening may be performed on the candidate test coordinate set corresponding to each test radius.
For example, the test coordinate positioning rule may further include a preset coordinate azimuth corresponding to each test radius. For example, test radius r1 may have a corresponding coordinate azimuth and test radius r2 may have a corresponding coordinate azimuth. The coordinate azimuth angle may be based on the length direction of the display screen to be measured, or may be based on the width direction of the display screen to be measured.
Therefore, for the candidate test coordinate set corresponding to each test radius, the test coordinate of the coordinate azimuth corresponding to the test radius formed by the origin coordinates can be obtained from the candidate test coordinate set of the test radius and used as the target test coordinate in the split-screen display area formed by the slotted area.
For example, it is assumed that for the test radius r1, the corresponding coordinate azimuth angles may be 0, 45, 90, 135, 180, 225, 270, 315 degrees with respect to the width direction of the display screen to be tested, and correspond to coordinate points 1, 2, 3, 4, 5, 6, 7, 8, respectively. For the test radius r1, still taking the width direction of the display screen to be tested as a reference, the corresponding coordinate azimuth angles may be 90, 135, and 180 degrees, respectively, and correspond to the coordinate points 9, 10, and 11, respectively. Thus, the coordinate points 1, 2, 3, 4, 5, 6, 7, 8 and the coordinate points 9, 10, 11 in fig. 4 can be determined as target test coordinates in the split-screen display area formed by the blind hole a 11.
It should be noted that, in other possible embodiments, only a part of the test coordinates may be selected as the target test coordinates from the test coordinates of the coordinate azimuth angle corresponding to each test radius formed by the origin coordinates. For example, taking fig. 4 as an example, only some of coordinate points 1, 2, 3, 4, 5, 6, 7, and 8 and coordinate points 9, 10, and 11 may be selected as target test coordinates.
For example, when the slotting type is a notch, the sub-step S113 can be realized by the following implementation steps. It should be understood that the common slotted types of bang screens, drip screens, etc. are understood to be slotted types of slits.
(4) A first test distance is obtained from the test coordinate positioning rule.
(5) And taking the coordinate of the central point of the display screen to be tested as an origin coordinate, and acquiring a first test coordinate set, a second test distance and a third test distance which are separated from the lower edge of the notch by a first test distance on the display screen to be tested.
In this embodiment, through a large number of actual tests and data analysis by the inventor of the present application, for the notched area of the notch, in order to reduce the difficulty in taking points during the optical test and improve the test effect, a first test coordinate set that is a first test distance away from the lower edge of the notch on the display screen to be tested may be selected and obtained.
For example, referring to FIG. 5, a first set of test coordinates x1 (only two shown in FIG. 5) may be obtained that is a first test distance D1 from the lower edge e1 of the cutout A11.
In a further possible implementation manner, on the basis of (5) of the above sub-step S113, the sub-step S113 may further implement the steps as follows.
(6) Traversing from a first candidate test coordinate which is separated from the upper edge of the display screen to be tested by a second test distance and is separated from the two side edges of the notch by a third test distance, and sequentially acquiring the subsequent candidate test coordinates to obtain a second test coordinate set.
For example, as shown in fig. 5, traversal may be performed from a first candidate test coordinate that is separated from the upper edge e2 by a second test distance D2 and separated from two side edges (e.g., e3) of the notch a11 by a third test distance D3, and the subsequent candidate test coordinates are sequentially obtained to obtain a second test coordinate set x 2.
(7) And taking the test coordinates included in the first test coordinate set and/or the second test coordinate set as target test coordinates in the split-screen display area.
For example, the test coordinates included in the first test coordinate set x1 may be set as target test coordinates, or the test coordinates included in the second test coordinate set x2 may be set as target test coordinates, or all of the test coordinates included in the first test coordinate set x1 and the second test coordinate set x2 may be set as target test coordinates at the same time.
In a further possible embodiment, in order to further reduce the difficulty of taking points in the optical test and improve the test effect, the test coordinate positioning rule may further include a coordinate separation distance D4.
And the two adjacent first test coordinates in the first test coordinate set are separated by a coordinate spacing distance D4, and the two adjacent second test coordinates in the second test coordinate set are separated by a coordinate spacing distance D4. Therefore, a certain distance can be kept between two adjacent first test coordinates in the first test coordinate set and between two adjacent second test coordinates in the second test coordinate set, the point taking difficulty during optical test can be reduced in the subsequent positioning test process of the test point positions, and the test effect is improved.
In a further possible implementation manner, in order to reduce the calculation amount and ensure the testing effect, on the basis of the above, the information testing device may further determine the maximum total number of the target testing coordinates based on the display screen parameters.
For example, the slot height and slot width of the notch may be obtained based on the display screen parameters, and the maximum total number of target test coordinates may be calculated based on the slot height and slot width.
The distance between the lower edge of the notch and the upper edge of the display screen to be tested can be the slotting height. The sum of the distance between the two side edges of the notch and the two side edges corresponding to the display screen to be tested and the width of the notch can be used as the width of the display screen to be tested. For example, as shown in fig. 5, the distance between e1 and e2 is the slot height, the distance between e3 and e4 is the slot width, and e5 and e6 are two corresponding side edges of the display screen to be measured, respectively.
As one possible example, the calculation formula for calculating the maximum total number of target test coordinates from the slot height and slot width may be as follows:
a＝(n+1)+(h-0.5+1)*2
wherein a is the maximum total number of the target test coordinates, n is the width of the slot, and h is the height of the slot.
In a possible implementation, still referring to step S110, during the optical testing process, referring to fig. 6, the information detecting apparatus 100 may be electrically connected to the signal generator 200 and the optical testing apparatus 300, and the signal generator 200 and the optical testing apparatus 300 interact with the display screen 400 to be tested.
The optical testing apparatus 300 may include a photometer or a spectrometer and a mechanical spindle locator, where the spindle locator may be used to adjust an inclination angle, an azimuth angle, and a height of a measuring direction of the photometer or the spectrometer, or to position an axis, and the photometer or the spectrometer may be used to measure brightness and chromaticity of different target test coordinates. The lens aperture of the photometer or spectrometer can be selected according to the actual test requirements, for example, a photometer or spectrometer with a lens aperture smaller than 1mm can be selected.
On this basis, please refer to fig. 7 in combination, the step S110 can be further implemented by the following sub-steps, which are described in detail below.
In the sub-step S114, the control signal generator 200 sends an image test signal of the test picture to the display screen 400 to be tested through the adapter plate, so as to drive the display screen 400 to be tested to display the test picture.
For example, the information detecting apparatus 100 may control the signal generator 200 to output a test picture such as a white picture, a 128-gray picture, a 64-gray picture, and the like, so as to drive the display screen 400 to be tested to display the test picture such as the white picture, the 128-gray picture, the 64-gray picture, and the like.
And a substep S115 of controlling the optical test apparatus 300 to position to each target test coordinate of the display screen 400 to be tested, and detecting a brightness value of each target test coordinate, and detecting a chromaticity coordinate of each target test coordinate along different test angles, respectively.
For example, for a type of slotting of blind holes, the optical test apparatus 300 may be controlled to be positioned to a set of coordinate points x1 and a set of coordinate points x2 as shown in fig. 4. For another example, for a notched type of cut, the optical test apparatus 300 may be controlled to be positioned to a set of coordinate points x1 and a set of coordinate points x2 as shown in fig. 5. Then, the optical testing apparatus 300 is controlled to detect the brightness value Lv of each target test coordinate separately, and detect the chromaticity coordinate of each target test coordinate separately along different test angles, where the chromaticity coordinate may be CIE1976(u ', v'), CIE1931(x, y), or the chromaticity coordinate of other standard chromaticity diagram, which is not limited in this embodiment.
In a possible example, the test angle may be selected according to an actual test requirement, for example, please refer to fig. 8, θ 0, θ 1, θ 2, and θ 3 may be selected as the test angle, and a plane perpendicular to the display screen 400 to be tested is taken as a reference test angle, and θ 0, θ 1, θ 2, and θ 3 are 0 °, 30 °, 45 °, and 60 °, respectively, so that the chromaticity coordinate of each target test coordinate at the test angle of θ 0, θ 1, θ 2, and θ 3 may be measured.
In a possible implementation, further to step S120, the following description is made with reference to some examples.
When the brightness uniformity of the split-screen display area needs to be tested, the minimum brightness value and the maximum brightness value can be obtained from the brightness values of the target test coordinates, and the brightness uniformity of the split-screen display area is obtained based on the ratio of the minimum brightness value to the maximum brightness value.
For example, Luminance Uniformity in the split-screen display area lv (min)/lv (max), where lv (min) is the minimum Luminance value and lv (max) is the maximum Luminance value.
When the chromaticity uniformity of the split-screen display area needs to be tested, the Euclidean distance between each target test coordinate and the chromaticity coordinates of other test coordinates under the same test angle can be calculated, and the chromaticity uniformity of the split-screen display area is obtained. For example, the calculation formula of the chromaticity uniformity of the split-screen display area is as follows:
wherein, Δ u 'v' -A is chromaticity uniformity (u) m ’，v m ') and (u) n ’，v n ') are the coordinates of the CIE1976 chromaticity diagram, respectively, and n and m are any two target test coordinates, respectively.
When the color accuracy of the split-screen display area needs to be tested, the chromaticity difference value between the test chromaticity of the target test coordinate and the standard chromaticity on the preset color component can be calculated according to the chromaticity coordinate of each target test coordinate, the color accuracy of each target test coordinate is calculated according to the calculated chromaticity difference value, and the color accuracy of the split-screen display area is determined according to the color accuracy of each target test coordinate. The preset color component may include a psychometric lightness component and a psychometric chrominance component.
For example, the formula for calculating the chromaticity of each target test coordinate is as follows:
ΔE*ab＝((ΔL*) 2 +(Δa*) 2 +(Δb*) 2 )∧(1/2)
wherein, L ═ 116 (Y/Y) 0 ) 1/3 -16；a*＝500[(X/X 0 ) 1/3 -(Y/Y 0 ) 1/3 ]；b*＝200[(Y/Y 0 ) 1/3 -(Z/Z 0 ) 1/3 ]X ═ X/Y × Y; y ═ Lv; z ═ ((1-x-Y)/Y) × Y. In the above formula, X, Y, Z represents the tristimulus values of the color sample, (X, y) represents the coordinates of CIE1931 chromaticity diagram, Lv represents the brightness, and X represents the intensity of light 0 、Y 0 、Z 0 The tristimulus values (e.g. a, B, C, D65) for CIE standard illuminants, L x is called psychometric lightness, abbreviated psychometric lightness or lightness index, and a x, B are called psychometric chroma, abbreviated psychometric chroma or chroma index.
When the color cast of the split-screen display area needs to be tested, the Euclidean distance between the chromaticity coordinates of each target test coordinate at different test angles can be calculated, and the color cast of the split-screen display area is obtained.
For example, the calculation formula of the color cast of the split-screen display area is as follows:
wherein, Δ u 'v' is the degree of color cast, (u) θ ’，v θ ') and (u) 0 ’，v 0 ') are the coordinates of the CIE1976 chromaticity diagram, respectively, (u) θ ’，v θ ') is the chromaticity coordinate at the test angle θ, (u) 0 ’，v 0 ') are the chromaticity coordinates at test angle 0.
Based on the same inventive concept, please refer to fig. 9, which illustrates a schematic diagram of functional modules of the split-screen display information detection apparatus 110 provided in this embodiment of the present application, and in this embodiment, the split-screen display information detection apparatus 110 may be divided into the functional modules according to the embodiment of the split-screen display information detection method in the foregoing embodiment. For example, the functional blocks may be divided for the respective functions, or two or more functions may be integrated into one processing block. The integrated module can be realized in a hardware mode, and can also be realized in a software functional module mode. It should be noted that, in the embodiment of the present application, the division of the module is schematic, and is only one logic function division, and there may be another division manner in actual implementation. For example, in the case of dividing each function module according to each function, the information detecting apparatus 110 for displaying split screens shown in fig. 9 is only a schematic diagram of the apparatus. The information detection apparatus 110 for displaying split screens may include an obtaining module 111 and a calculating module 112, and the functions of the functional modules of the information detection apparatus 110 for displaying split screens are described in detail below.
The obtaining module 111 is configured to obtain a plurality of target test coordinates in a split-screen display area formed by the slotted area, and obtain optical test data of each target test coordinate, where the optical test data includes a brightness value of each target test coordinate and chromaticity coordinates of the target test coordinate at different test angles. It is understood that the obtaining module 111 can be used to execute the step S110, and for the detailed implementation of the obtaining module 111, reference can be made to the content related to the step S110.
And the calculating module 112 is configured to calculate, according to the optical test data of each target test coordinate, a split-screen display quality parameter of the split-screen display area, where the split-screen display quality parameter includes at least one of luminance uniformity, chromaticity and color cast of the split-screen display area. It is understood that the computing module 112 can be used to execute the step S120, and for the detailed implementation of the computing module 112, reference can be made to the above description of the step S120.
In a possible implementation, the obtaining module 111 is specifically configured to:
acquiring display screen parameters of a display screen to be detected, wherein the display screen parameters comprise the size parameters of the slotted area and the size parameters of the display screen to be detected;
determining a test coordinate positioning rule according to the slotting type of the slotting region;
and determining each target test coordinate in the split-screen display area according to the test coordinate positioning rule and the display screen parameters.
In a possible implementation, the obtaining module 111 is specifically configured to:
when the slotting type is a blind hole, obtaining at least one test radius from the test coordinate positioning rule;
determining an origin coordinate according to the blind hole position, and acquiring a distance between the display screen to be tested and the origin coordinate according to display screen parameters and forming a candidate test coordinate set corresponding to the test radius for each test radius, wherein the distance is taken as a coordinate point of the test radius;
and determining target test coordinates in the split-screen display area based on the candidate test coordinate set corresponding to each test radius.
In a possible implementation, the obtaining module 111 is specifically configured to:
and aiming at the candidate test coordinate set corresponding to each test radius, obtaining the test coordinate of the coordinate azimuth angle corresponding to the test radius formed by the origin coordinates from the candidate test coordinate set of the test radius, and taking the test coordinate as the target test coordinate in the split screen display area formed by the slotted area.
In a possible implementation, the obtaining module 111 is specifically configured to:
when the slotting area is a notch, obtaining a first test distance, a second test distance and a third test example from the test coordinate positioning rule;
the coordinate of the central point of the display screen to be tested is used as an original point coordinate, and a first test coordinate set which is arranged on the display screen to be tested and is away from the lower edge of the notch by a first test distance is obtained
Traversing from a first candidate test coordinate which is separated from the upper edge of the display screen to be tested by a second test distance and is separated from the two side edges of the notch by a third test distance, and sequentially acquiring subsequent candidate test coordinates to obtain a second test coordinate set;
and taking the test coordinates included by the first test coordinate set and/or the second test coordinate set as target test coordinates in the split-screen display area.
In one possible embodiment, the test coordinate positioning rule further comprises a coordinate separation distance;
and the two adjacent first test coordinates in the first test coordinate set are separated by a coordinate spacing distance, and the two adjacent second test coordinates in the second test coordinate set are separated by a coordinate spacing distance.
In a possible implementation, the obtaining module 111 is specifically configured to:
obtaining the slotting height and the slotting width of the notch based on the display screen parameters;
calculating the maximum total number of target test coordinates according to the slotting height and the slotting width, wherein the distance between the lower edge of the notch and the upper edge of the display screen to be tested is the slotting height; the sum of the distance between the two side edges of the notch and the two side edges corresponding to the display screen to be tested and the width of the notch is the width of the display screen to be tested.
In one possible embodiment, the calculation formula for calculating the number of target coordinates based on the slot height and slot width is as follows:
a＝(n+1)+(h-0.5+1)*2
wherein a is the number of target coordinates, n is the width of the slot, and h is the height of the slot.
In one possible embodiment, the information detection device is electrically connected with the signal generator and the optical test device;
the obtaining module 111 is specifically configured to:
the control signal generator sends an image test signal of a test picture to the display screen to be tested through the adapter plate so as to drive the display screen to be tested to display the test picture;
and controlling the optical test equipment to be positioned to each target test coordinate of the display screen to be tested, respectively detecting the brightness value of each target test coordinate, and respectively detecting the chromaticity coordinate of each target test coordinate along different test angles.
In one possible implementation, the calculation module 112 is specifically configured to:
obtaining a minimum brightness value and a maximum brightness value from the brightness values of all target test coordinates, and obtaining the brightness uniformity of the split-screen display area based on the ratio of the minimum brightness value to the maximum brightness value;
calculating the Euclidean distance between each target test coordinate and the chromaticity coordinates of other target test coordinates under the same test angle to obtain the chromaticity uniformity of the split-screen display area;
calculating a chromaticity difference value on a preset color component between the test chromaticity of each target test coordinate and the standard chromaticity according to the chromaticity coordinate of each target test coordinate, calculating the chromaticity of each target test coordinate according to the calculated chromaticity difference value, and determining the chromaticity of a split-screen display area according to the chromaticity of each target test coordinate, wherein the preset color component comprises a psychometric lightness component and a psychometric chromaticity component; and
and calculating the Euclidean distance between the chromaticity coordinates of each target test coordinate under different test angles to obtain the color cast of the split-screen display area.
It should be understood that, in a specific implementation, the calculation module 112 may only perform one or a combination of the above steps considering that the quality parameter of the split-screen display includes one or more of luminance uniformity, chrominance uniformity and color cast of the split-screen display area, and is not limited in particular.
It should be noted that the division of the modules of the above apparatus is only a logical division, and the actual implementation may be wholly or partially integrated into one physical entity, or may be physically separated. Furthermore, all of the modules may be implemented in a form called by software through the processing element, or may be implemented in a form called by hardware, or some of the modules may be implemented in a form called by software through the processing element, or some of the modules may be implemented in a form called by hardware. For example, the obtaining module 111 and the calculating module 112 may be processing elements that are separately configured, or may be integrated into a chip of the apparatus, or may be stored in a storage medium in the form of program code, and the processing elements may call and execute the functions of the obtaining module 111 and the calculating module 112. In addition, all or part of the modules can be integrated together or can be independently realized. The processing element described herein may be an integrated circuit having signal processing capabilities. In implementation, each step of the above method or each module above may be implemented by an integrated logic circuit of hardware in a processor element or an instruction in the form of software.
Based on the same inventive concept, please refer to fig. 10, which shows a schematic block diagram of an information detection apparatus 100 for performing the above-mentioned information detection method for displaying split screens according to an embodiment of the present application, where the information detection apparatus 100 may include an information detection device 110 for displaying split screens, a machine-readable storage medium 120, and a processor 130.
In this embodiment, the machine-readable storage medium 120 and the processor 130 may be located in the information detection apparatus 100 and separately provided. However, it should be understood that the machine-readable storage medium 120 may also be separate from the information detection device 100 and may be accessed by the processor 130 through a bus interface. Alternatively, the machine-readable storage medium 120 may be integrated into the processor 130, such as a cache and/or general purpose registers.
The information detection apparatus 110 for displaying split screens may include software functional modules (e.g., the obtaining module 111 and the calculating module 112 shown in fig. 9) stored in the machine-readable storage medium 120, when the processor 130 executes the software functional modules in the information detection apparatus 110 for displaying split screens, so as to implement the information detection method for displaying split screens provided by the foregoing method embodiments.
Since the information detection apparatus 100 provided in this embodiment is another implementation form of the method embodiment of the information detection method for split display, and the information detection apparatus 100 may be configured to execute the method for split display information detection provided in the method embodiment, specific description and technical effects that can be obtained may refer to the method embodiment, and are not described herein again.
It should be noted that, in this document, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.
The embodiments described above are only a part of the embodiments of the present application, and not all of the embodiments. The components of the embodiments of the present application, as generally described and illustrated in the figures herein, may be arranged and designed in a wide variety of different configurations. Thus, the detailed description of the embodiments of the present application provided in the accompanying drawings is not intended to limit the scope of the application, but is merely representative of selected embodiments of the application. Therefore, the protection scope of the present application shall be subject to the protection scope of the claims. Moreover, all other embodiments that can be made available by a person skilled in the art without making any inventive step based on the embodiments of the present application shall fall within the scope of protection of the present application.
Claims (9)
1. The information detection method for the split display screen is applied to information detection equipment, the information detection equipment is used for carrying out information detection on a display screen to be detected, the display screen to be detected comprises a slotted area, and the method comprises the following steps:
acquiring a plurality of target test coordinates in a split-screen display area formed by the slotted area, and acquiring optical test data of each target test coordinate, wherein the optical test data comprises a brightness value of each target test coordinate and chromaticity coordinates of the target test coordinate at different test angles;
calculating to obtain a split-screen display quality parameter of the split-screen display area according to the optical test data of each target test coordinate, wherein the split-screen display quality parameter comprises at least one of brightness uniformity, chromaticity and color cast of the split-screen display area;
the step of obtaining each target test coordinate in a split-screen display area formed by the slotted area comprises the following steps:
acquiring display screen parameters of the display screen to be detected, wherein the display screen parameters comprise the size parameters of the slotted area and the size parameters of the display screen to be detected;
determining a test coordinate positioning rule according to the slotting type of the slotting region;
and determining target test coordinates in the split-screen display area according to the test coordinate positioning rule and the display screen parameters.
2. The method for detecting information of split display screen according to claim 1, wherein the step of determining target test coordinates in the split display area according to the test coordinate positioning rule and the display screen parameters comprises:
when the slotting type is a blind hole, obtaining at least one test radius from the test coordinate positioning rule;
determining an origin coordinate according to the blind hole position, and acquiring coordinate points, the distance between which and the origin coordinate on the display screen to be tested is the testing radius, according to the display screen parameters and aiming at each testing radius to form a candidate testing coordinate set corresponding to the testing radius;
and determining target test coordinates in the split-screen display area based on the candidate test coordinate set corresponding to each test radius.
3. The method according to claim 2, wherein the test coordinate positioning rule further includes a preset coordinate azimuth corresponding to each of the test radii, and the step of determining the target test coordinate in the split-screen display area based on the candidate test coordinate set corresponding to each of the test radii includes:
and aiming at the candidate test coordinate set corresponding to each test radius, obtaining the test coordinate of the coordinate azimuth angle corresponding to the test radius formed by the origin coordinates from the candidate test coordinate set of the test radius, and using the test coordinate as the target test coordinate in the split-screen display area.
4. The method for detecting information of split display screen according to claim 1, wherein the step of determining target test coordinates in the split display area according to the test coordinate positioning rule and the display screen parameters comprises:
when the grooving area is a notch, obtaining a first test distance, a second test distance and a third test distance from the test coordinate positioning rule;
taking the coordinate of the central point of the display screen to be tested as an origin coordinate, and acquiring a first test coordinate set which is on the display screen to be tested and is away from the lower edge of the notch by the first test distance;
traversing from a first candidate test coordinate which is separated from the upper edge of the display screen to be tested by the second test distance and is separated from the two side edges of the notch by the third test distance, and sequentially acquiring subsequent candidate test coordinates to obtain a second test coordinate set;
taking the test coordinates included in the first test coordinate set and/or the second test coordinate set as target test coordinates in the split-screen display area;
the test coordinate positioning rule further comprises a coordinate spacing distance;
and the two adjacent first test coordinates in the first test coordinate set are both separated by the coordinate spacing distance, and the two adjacent second test coordinates in the second test coordinate set are both separated by the coordinate spacing distance.
5. The method for detecting information on split display of claim 4, further comprising:
obtaining the slotting height and the slotting width of the notch based on the display screen parameters;
calculating the maximum total number of target test coordinates according to the slotting height and the slotting width, wherein the distance between the lower edge of the notch and the upper edge of the display screen to be tested is the slotting height; the sum of the distance between the two side edges of the notch and the two side edges corresponding to the display screen to be tested and the width of the notch is the width of the display screen to be tested;
the calculation formula for calculating the maximum total number of the target test coordinates according to the slotting height and the slotting width is as follows:
a＝(n+1)+(h-0.5+1)*2
wherein a is the maximum total number of the target test coordinates, n is the slot width, and h is the slot height.
6. The information detection method for the split display screen according to any one of claims 1 to 5, wherein the information detection device is electrically connected with a signal generator and an optical test device;
the step of obtaining optical test data for each of the target test coordinates comprises:
controlling the signal generator to send an image test signal of a test picture to the display screen to be tested through the adapter plate so as to drive the display screen to be tested to display the test picture;
and controlling the optical test equipment to be positioned to each target test coordinate of the display screen to be tested, respectively detecting the brightness value of each target test coordinate, and respectively detecting the chromaticity coordinate of each target test coordinate along different test angles.
7. The method according to any one of claims 1 to 5, wherein the step of calculating the split-screen display quality parameter of the split-screen display area according to the optical test data of each target test coordinate comprises:
obtaining a minimum brightness value and a maximum brightness value from the brightness values of all target test coordinates, and obtaining the brightness uniformity of the split-screen display area based on the ratio of the minimum brightness value to the maximum brightness value;
calculating the Euclidean distance between each target test coordinate and the chromaticity coordinates of other target test coordinates under the same test angle to obtain the chromaticity uniformity of the split-screen display area;
calculating a chromaticity difference value on a preset color component between the test chromaticity of each target test coordinate and the standard chromaticity according to the chromaticity coordinate of each target test coordinate, obtaining the chromaticity of each target test coordinate according to the calculated chromaticity difference value, and determining the chromaticity of the split-screen display area according to the chromaticity of each target test coordinate, wherein the preset color component comprises a psychometric lightness component and a psychometric chromaticity component; and calculating the Euclidean distance between the chromaticity coordinates of each target test coordinate under different test angles to obtain the color cast of the split-screen display area.
8. The utility model provides an information detection device that shows split screen, its characterized in that is applied to information detection equipment, information detection equipment is used for carrying out information detection to the display screen that awaits measuring, the display screen that awaits measuring includes the slotted zone, the device includes:
the acquisition module is used for acquiring a plurality of target test coordinates in a split screen display area formed by the slotted area and acquiring optical test data of each target test coordinate, wherein the optical test data comprises a brightness value of each target test coordinate and chromaticity coordinates of the target test coordinate at different test angles;
the calculation module is used for calculating and obtaining the split-screen display quality parameters of the split-screen display area according to the optical test data of each target test coordinate, wherein the split-screen display quality parameters comprise at least one of brightness uniformity, chromaticity and color cast of the split-screen display area;
wherein, a plurality of target test coordinates in the split screen display area that the acquisition module acquireed the fluting district formed include:
acquiring display screen parameters of the display screen to be detected, wherein the display screen parameters comprise the size parameters of the slotted area and the size parameters of the display screen to be detected;
determining a test coordinate positioning rule according to the slotting type of the slotting region;
and determining target test coordinates in the split-screen display area according to the test coordinate positioning rule and the display screen parameters.
9. An information detection apparatus comprising a machine-readable storage medium having a computer program stored therein and a processor configured to execute the computer program to perform the information detection method of displaying split screens claimed in any one of claims 1 to 7.
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