Panel assembly method, device, electronic equipment and storage medium

Abstract

The application discloses a panel assembly method and device, electronic equipment and a storage medium, and relates to the technical field of display. The disclosed panel assembly method comprises the following steps: acquiring each projection picture when a test projection module respectively projects and displays a preset test image through each projection channel; calculating a panel offset value between each monochromatic light-emitting panel in the test projection module according to the projection pictures; and adjusting the assembly position of each monochromatic light-emitting panel according to the panel offset value, so that the panel offset value meets the preset assembly accuracy requirement. The application can effectively detect and correct the imaging offset problem to improve the imaging effect of the projection product.

Description

Technical Field

[0001] The present application relates to the field of display technology, and in particular to a panel assembly method, device, electronic device and storage medium. Background Art

[0002] MicroLED (micro light-emitting diode) display technology has gradually become the mainstream product of the new generation of display due to its low power consumption, long life and high brightness.

[0003] Currently, in the manufacturing process of projection products using MicroLED display technology, the assembly process of each monochrome light-emitting panel in the projection module is crucial. However, the current panel assembly and alignment process relies on manual debugging, which is cumbersome and difficult to form a unified and standardized adjustment plan. It is difficult to ensure that imaging offset problems caused by panel assembly alignment deviations can be effectively identified and corrected, resulting in uneven imaging quality of factory products.

[0004] In summary, how to effectively detect and correct imaging offset problems to improve the imaging effect of projection products has become a technical problem that urgently needs to be solved in this field. Summary of the Invention

[0005] The main purpose of this application is to provide a panel assembly method, device, electronic device and storage medium, aiming to effectively detect and correct imaging offset problems to improve the imaging effect of projection products.

[0006] To achieve the above objectives, the present application proposes a panel assembly method, which includes:

[0007] Obtaining each projection screen when the test projection module projects and displays the preset test image through each projection channel;

[0008] Calculating panel offset values ​​between each monochromatic light-emitting panel in the test projection module according to each of the projection images;

[0009] The assembly position of each of the monochromatic light-emitting panels is adjusted according to the panel offset value, so that the panel offset value meets a preset assembly accuracy requirement.

[0010] In one embodiment, before the step of obtaining each projection screen when the test projection module projects and displays the preset test image through each projection channel, the step further includes:

[0011] Performing brightness calibration on each of the projection channels according to preset assembly requirements;

[0012] When the brightness difference between the projection channels exceeds a preset threshold, a preset circular array image is determined as a test image, wherein the sizes of the circles in the circular array images projected and displayed by the projection channels are different;

[0013] When the brightness difference between the projection channels does not exceed the preset threshold, a preset grid image is determined as the test image.

[0014] In an embodiment, the step of calculating the panel offset value between each monochromatic light-emitting panel in the test projection module according to each projection picture comprises:

[0015] For each projection picture, the position of each feature point in the projection picture is determined;

[0016] For each feature point, the displacement difference of the position of the feature point in different projection pictures is calculated;

[0017] The panel offset value between each monochromatic light-emitting panel in the test projection module is calculated according to the displacement difference of each feature point.

[0018] In an embodiment, the step of determining the position of each feature point in each projection picture comprises:

[0019] When the test image is a circular array image, for each projection picture, the center position of each circular region in the projection picture is determined, and each center position is taken as the position of a feature point;

[0020] When the test image is a grid image, for each projection picture, the position of each grid point in the projection picture is determined, and each grid point position is taken as the position of a feature point.

[0021] In an embodiment, the step of calculating the panel offset value between each monochromatic light-emitting panel in the test projection module according to the displacement difference of each feature point comprises:

[0022] The displacement difference of each feature point is summed and averaged to obtain a pixel offset value of each projection picture;

[0023] The panel offset value between each monochromatic light-emitting panel in the test projection module is calculated according to the pixel offset value, wherein the panel offset value is linearly proportional to the pixel offset value.

[0024] In an embodiment, after the step of adjusting the assembly position of each monochromatic light-emitting panel according to the panel offset value, the method further comprises:

[0025] Obtaining each verification picture when the test projection module projects and displays the test image through each projection channel respectively;

[0026] Determining the panel offset value between each monochromatic light-emitting panel according to the position of the feature point in each verification picture;

[0027] According to the panel offset values, it is determined whether the assembly positions of the single-color light-emitting panels meet the assembly precision requirement.

[0028] In an embodiment, the step of adjusting the assembly positions of the single-color light-emitting panels according to the panel offset values comprises:

[0029] When the single-color light-emitting panels comprise a red light panel, a green light panel and a blue light panel, the assembly position of the red light panel is taken as a reference assembly position.

[0030] According to a panel offset value between the green light panel and the red light panel, the assembly position of the green light panel is adjusted.

[0031] According to a panel offset value between the blue light panel and the red light panel, the assembly position of the blue light panel is adjusted.

[0032] In addition, to achieve the above object, the present application further provides a panel assembly device, which comprises:

[0033] a picture acquisition module, configured to acquire projection pictures of a test projection module when the test projection module respectively projects and displays a preset test image through each projection channel;

[0034] an offset value calculation module, configured to calculate panel offset values between single-color light-emitting panels in the test projection module according to the projection pictures;

[0035] an assembly module, configured to adjust assembly positions of the single-color light-emitting panels according to the panel offset values, so that the panel offset values meet a preset assembly precision requirement.

[0036] In addition, to achieve the above object, the present application further provides an electronic device, which comprises a memory, a processor and a computer program stored in the memory and capable of running on the processor, the computer program being configured to implement the steps of the panel assembly method as described above.

[0037] In addition, to achieve the above object, the present application further provides a storage medium, which is a computer readable storage medium, and the storage medium stores a computer program, the computer program being executed by a processor to implement the steps of the panel assembly method as described above.

[0038] The application provides a panel assembly method. In the application, a test projection module projects and displays a preset test image through each independent projection channel of the test projection module, acquires each projection picture of the projection and display, calculates panel offset values between each single-color light-emitting panel in the test projection module according to the acquired projection pictures, and finally adjusts the assembly positions of each single-color light-emitting panel according to the calculated panel offset values, so that the panel offset values of each single-color light-emitting panel meet the preset assembly accuracy requirement.

[0039] In conclusion, in the panel assembly process of the test projection module, the application acquires the projection pictures of the test projection module when projecting the test image through each projection channel, determines the panel offset values between each single-color light-emitting panel according to the projection pictures, and then automatically adjusts the assembly positions of each single-color light-emitting panel according to the panel offset values, so that the imaging pictures of each projection channel of the adjusted test projection module can be superimposed. Through the standardized calculation and adjustment, the panel assembly accuracy of each projection product can meet the factory standard, the panel assembly efficiency is improved, the imaging offset problem caused by the misalignment of manual assembly is reduced, and the imaging effect of the projection product is improved. BRIEF DESCRIPTION OF DRAWINGS

[0040] The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the application and serve to explain the principles of the application together with the specification.

[0041] In order to more clearly illustrate the technical solutions in the embodiments of the application or the prior art, the accompanying drawings needed to be used in the embodiments or prior art description will be briefly introduced. Obviously, for those skilled in the art, other drawings can also be obtained based on these drawings without creative labor.

[0042] Figure 1 A flowchart is provided for the panel assembly method embodiment one of the application;

[0043] Figure 2 A test image diagram is provided for the panel assembly method embodiment two of the application;

[0044] Figure 3 A projection picture diagram is provided for the panel assembly method embodiment two of the application;

[0045] Figure 4 Another projection picture diagram is provided for the panel assembly method embodiment two of the application;

[0046] Figure 5 A structure diagram of the panel assembly device of the embodiment of the application is provided;

[0047] Figure 6 This is a schematic diagram of the device structure of the hardware operating environment involved in the panel assembly method in the embodiment of the present application.

[0048] The purpose, features and advantages of this application will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION

[0049] It should be understood that the specific embodiments described herein are merely used to explain the technical solutions of the present application and are not intended to limit the present application.

[0050] In order to better understand the technical solution of the present application, a detailed description will be given below in conjunction with the accompanying drawings and specific implementation methods.

[0051] The main solution of the embodiment of the present application is: obtaining each projection screen when the test projection module projects and displays the preset test image through each projection channel respectively; calculating the panel offset value between each monochrome light-emitting panel in the test projection module according to each projection screen; adjusting the assembly position of each monochrome light-emitting panel according to the panel offset value so that the panel offset value meets the preset assembly accuracy requirements.

[0052] Currently, in the manufacturing process of projection products using MicroLED display technology, the assembly process of each monochrome light-emitting panel in the projection module is crucial. However, the current assembly and alignment of the panels relies on manual debugging, which is cumbersome and difficult to form a unified and standardized adjustment plan. Specifically, the current panel assembly process mainly uses image acquisition equipment to capture the projection image of the projection module with all projection channels turned on. The projection image is then judged by the naked eye to see whether there is an imaging offset problem. This method makes it difficult to ensure that the imaging offset problem caused by assembly alignment deviation can be effectively identified and corrected, resulting in uneven imaging quality of the products leaving the factory.

[0053] An embodiment of the present application provides a solution, which automatically obtains the projection images of the test projection module when the test image is projected through each projection channel during the panel assembly process of the test projection module, determines the panel offset value between each monochrome light-emitting panel according to each projection image, and then automatically adjusts the assembly position of each monochrome light-emitting panel according to the panel offset value, so that the imaging images of each projection channel in the adjusted test projection module can overlap. Through standardized calculation and adjustment, it is ensured that the panel assembly accuracy of each projection product can meet the factory standard, while improving the panel assembly efficiency, reducing the imaging offset problem caused by manual assembly misalignment, and improving the imaging effect of the projection product.

[0054] It should be noted that the execution subject of the embodiment can be a computing service device with data processing, network communication and program running functions, such as a computer, a server, or an electronic device capable of realizing the above functions. The following will take a panel assembly device as an example to describe the embodiment and the following embodiments.

[0055] To facilitate understanding of the embodiment, the application scenario for executing the steps in the embodiment is described first, that is, the embodiment of the application is applied to a panel assembly scene of a test projection module. The test projection module includes multiple projection channels, each of which is designed with a single-color light-emitting panel corresponding thereto, such as a red light panel, a blue light panel and a green light panel. The test projection module can be an AR (Augmented Reality) module, a laser module or a 3D (Three Dimensions) module, etc. The single-color light-emitting panels in the test projection module are respectively responsible for generating light of corresponding colors. After the light passes through the respective projection channels, it is fused to form a colorful projection image. In order to ensure the color accuracy and clarity of the projection image, the positions of the single-color light-emitting panels in the test projection module need to be assembled and aligned.

[0056] Based on this, the embodiment of the application provides a panel assembly method, which is described below with reference to Figure 1 , Figure 1 The flowchart of the first embodiment of the panel assembly method of the application is shown in FIG. 1.

[0057] In the embodiment, the panel assembly method includes steps S10-S40:

[0058] Step S10, acquiring each projection picture when the test projection module respectively projects and displays a preset test image through each projection channel;

[0059] The test projection module will respectively emit light through each single-color light-emitting panel. These light rays pass through their respective projection channels to project and display a pre-set test image, forming a projection picture. At this time, the image acquisition device acquires the projection picture, which reflects the projection picture effect when each single-channel projection of the test projection module is projected.

[0060] Taking the single-color light-emitting panel including an Rpanel (red light panel), a Gpanel (green light panel) and a Bpanel (blue light panel) as an example, the steps of projecting and displaying the test image by single channel include: in the first projection, the red light panel is used to project and display the test image to obtain a red projection picture; in the second projection, the green light panel is used to project and display the test image to obtain a green projection picture; in the third projection, the blue light panel is used to project and display the test image to obtain a blue projection picture. In this example, the order of the three projections can be adjusted.

[0061] In another feasible embodiment, dual-channel projection or three-channel simultaneous projection can also be used, and the step of projecting the test image using dual channels includes: taking the assembly position of the red light panel as the reference position, during the first projection, using the red light panel and the green light panel to project and display the test image, and obtaining a projection picture containing red, green and / or a mixture of the two colors; during the second projection, using the red light panel and the blue light panel to project and display the test image, and obtaining a projection picture containing red, blue and / or a mixture of the two colors. In this example, the assembly position of other panels can also be selected as the reference position, and the order of the two projections can be adjusted.

[0062] The step of projecting the test image using three channels includes: during projection, using a red light panel, a green light panel and a blue light panel to project the test image to obtain a projection picture containing red, green, blue and / or a mixture of the three colors.

[0063] It should be noted that when the image acquisition device for obtaining the projection image is a black and white camera, when dual-channel projection or three-channel projection is adopted, the brightness of multiple monochrome light-emitting panels projected simultaneously can be pre-set to be different, so as to distinguish the projection effects of different channels in the captured projection image. For example, the brightness of the red light panel is lowered and the brightness of the blue light panel is increased. When red and blue light dual-channel projection is adopted, if there is a relative position offset between the blue light panel and the red light panel, the projection image captured by the black and white camera will also have an imaging offset problem, and the elements in the projection image will appear as bright and dark ghosts. At this time, it can be determined that the brighter element part is the imaging effect of the blue light panel projection, and the darker element part is the imaging effect of the red light panel projection.

[0064] Step S20, calculating the panel offset value between each monochromatic light-emitting panel in the test projection module according to each projection image;

[0065] The panel offset values ​​between the monochrome light-emitting panels in the test projection module are calculated based on the acquired projection images. By calculating the panel offset values, it can be determined whether the relative position relationship between the monochrome light-emitting panels in the current test projection module is accurate.

[0066] Exemplarily, in a feasible implementation, a series of feature points are preset in the test image, which can be markers easy to identify and track, such as the center of a circular array image or the grid point of a grid image; then, image processing is performed on each projection picture to accurately identify and locate the positions of all feature points; then, the displacement difference between the same feature points in different projection pictures is calculated by comparing the positions of the same feature points in different projection pictures; finally, the panel offset values between the single-color light-emitting panels are obtained by statistics and calculation according to the displacement difference of all feature points.

[0067] In another feasible implementation, each projection picture is subjected to grayscale processing, and then the grayscale projection values are obtained by performing grayscale projection on the rows and columns respectively; then, the offset degree between different projection pictures is evaluated by calculating the similarity of the grayscale projection values between different projection pictures; finally, the panel offset values between the single-color light-emitting panels are calculated according to the calculation result of the similarity. In actual application scenarios, a suitable implementation can be selected according to the specific characteristics and test requirements of the test projection module.

[0068] In step S30, the assembly positions of the single-color light-emitting panels are adjusted according to the panel offset values, so that the panel offset values meet the preset assembly accuracy requirement.

[0069] The assembly positions of the single-color light-emitting panels are adjusted according to the calculated panel offset values, so as to ensure that the panel offset values of the test projection module meet the preset assembly accuracy requirement, that is, the panel offset values between the single-color light-emitting panels are reduced or eliminated, so that the projection picture projected by the test projection module is clearer.

[0070] It should be noted that the adjustment of the assembly positions of the single-color light-emitting panels can be performed by a fine adjustment mechanism in the test projection module, such as a precision slide rail or a fine adjustment screw, to fine-tune the assembly positions of the single-color light-emitting panels. In the adjustment process, a specific order is followed to avoid mutual interference or new errors, for example, one of the single-color light-emitting panels is determined as a reference panel, the position of the reference panel is determined first, and then the positions of the other panels are adjusted based on the reference panel.

[0071] In this way, the embodiment of the present application automatically obtains the projection pictures when the test projection module projects the test image through each projection channel during the panel assembly process of the test projection module, determines the panel offset values between the single-color light-emitting panels according to the projection pictures, and then automatically adjusts the assembly positions of the single-color light-emitting panels according to the panel offset values, so that the imaging pictures of each projection channel in the adjusted test projection module can be superimposed. Through standardized calculation and adjustment, it is ensured that the panel assembly accuracy of each projection product can meet the factory standard, the panel assembly efficiency is improved, the imaging offset problem caused by manual assembly is reduced, and the imaging effect of the projection product is improved.

[0072] Based on the first embodiment of the present application, in the second embodiment of the present application, the same or similar contents as the above-mentioned embodiment one can refer to the above introduction, and the subsequent will not be described in detail. On this basis, before step S10, steps A10-A30 can also be included:

[0073] Step A10, according to the preset assembly requirement, the brightness of each projection channel is calibrated;

[0074] It should be noted that the assembly requirement is flexibly set according to the characteristics and user requirements of different projection products. For example, some projection products require a certain brightness difference between each projection channel to create a specific visual effect; while some other projection products require the brightness of each projection channel to be as consistent as possible to ensure the overall clarity and color accuracy of the projected image.

[0075] According to the preset assembly requirement, the brightness of each projection channel is calibrated to make the projection brightness of each projection channel meet the assembly requirement.

[0076] Step A20, when the brightness difference between each projection channel exceeds the preset threshold, the preset circular array image is determined as the test image, wherein the size of the circles in each circular array image projected and displayed by each projection channel is different;

[0077] When the brightness difference between each projection channel exceeds the preset threshold, the preset circular array image is selected as the test image, wherein the preset threshold can be set based on the actual application scenario, which is not limited here. The circular array image contains a plurality of circular elements of the same size arranged in an array. Each projection channel projects and displays a circular array image, but the size of the circles in different images is different, so as to distinguish the projection effect of different channels and the offset between channels in the collected projection image.

[0078] Step A30, when the brightness difference between each projection channel does not exceed the preset threshold, the preset grid image is determined as the test image.

[0079] When the brightness difference between each projection channel does not exceed the preset threshold, the preset grid image is selected as the test image, which is composed of a series of regular horizontal lines and vertical lines.

[0080] Exemplarily, when the test image is a grid image, the test image is as shown in Figure 2 As shown in the figure, a double-channel projection is adopted, and the two channels are set to different brightness. In the case of no error in the assembly of the light-emitting panel of the double-channel, the projection picture obtained by the black and white camera at this time is as shown in Figure 3As shown, at this time, the projection picture is not offset. In the case that there is an error in the assembly of the light-emitting panel of the two channels, the projection picture collected by the black-and-white camera at this time is as shown in FIG. 6B. As shown, the projection pictures projected by the two channels are offset. Therefore, the assembly position of the light-emitting panel needs to be adjusted according to the projection picture. Figure 4 As shown, in the case that the projection pictures projected by the two channels are offset, the assembly position of the light-emitting panel needs to be adjusted according to the projection picture.

[0081] When the test image is a circle array image, that is, a circle original is arranged at each grid point position in the grid image, the circle center element sizes arranged for the channels are different, three-channel projection is adopted, and the three channels are set to different brightness. In the case that there is no error in the assembly of the light-emitting panel of the three channels, the circle centers of the three different sizes of circle originals in the projection picture collected by the black-and-white camera at this time are coincident. In the case that there is an error in the assembly of the light-emitting panel of the three channels, the circle center positions in the projection picture collected by the black-and-white camera at this time are not coincident, that is, the projection pictures projected by the three channels are offset. Therefore, the assembly position of the light-emitting panel needs to be adjusted according to the projection picture.

[0082] In a feasible embodiment, the step S20 can include steps S201-S203:

[0083] The step S201 includes determining the positions of the feature points in each projection picture.

[0084] After the projection pictures are acquired, the positions of the feature points in the projection pictures are determined through image recognition technology. The feature points refer to points in the projection picture that have clear identification, are easy to be recognized and tracked, such as the corner points, center points and the like in the projection picture, or other position points with obvious visual features.

[0085] In a feasible embodiment, the step S201 can include steps S2011-S2012:

[0086] The step S2011 includes, when the test image is a circle array image, determining the circle center positions of the circle regions in each projection picture, and taking the circle center positions as the positions of the feature points.

[0087] When the test image is selected as a circle array image, the circle centers of the circle regions in each projection picture are located, the circle centers are taken as the feature points of the test image, and the circle centers of the circle regions in all the projection pictures are recognized and located.

[0088] The step S2012 includes, when the test image is a grid image, determining the grid point positions in each projection picture, and taking the grid point positions as the positions of the feature points.

[0089] When the test image is selected as a grid image, each grid point is located in each projection screen, and the grid points are used as feature points of the test image. The grid points in all projection screens are identified and located, where the grid points refer to the vertices of a rectangle or square in a grid.

[0090] Step S202: For each feature point, calculate the displacement difference between the positions of the feature point in different projection images;

[0091] For each feature point, the position coordinates of the same feature point in different projection images are compared, and the difference between them, namely the displacement difference, is calculated. The displacement difference reflects the position change of the imaging feature point caused by the offset error between the monochrome light-emitting panels.

[0092] Step S203 , calculating the panel offset value between each monochromatic light-emitting panel in the test projection module according to the displacement difference of each feature point.

[0093] The panel offset values ​​between the monochromatic light-emitting panels in the test projection module are calculated based on the displacement difference of each feature point.

[0094] For example, for single-channel projection, dual-channel projection or three-channel projection, taking the assembly position of the red light panel as the reference assembly position as an example, for the target feature point among the feature points in the test image, the target feature point is any one of the feature points, determine the first position coordinates of the target feature point in the projection picture generated by the red light panel projection, determine the second position coordinates of the target feature point in the projection picture generated by the blue light panel projection, determine the third position coordinates of the target feature point in the projection picture generated by the green light panel projection, calculate the first displacement difference between the first position coordinates and the second position coordinates, and calculate the second displacement difference between the first position coordinates and the third position coordinates; according to the first displacement difference of each feature point, calculate the panel offset value between the red light panel and the blue light panel, and according to the second displacement difference of each feature point, calculate the panel offset value between the red light panel and the green light panel.

[0095] In a feasible embodiment, step S203 may include steps S2031 to S2032:

[0096] Step S2031, summing and averaging the displacement differences of each feature point to obtain the pixel offset value of each projection image;

[0097] The displacement differences of all feature points are summed and their average value is calculated to obtain the pixel offset value of each projection picture, wherein the pixel offset value reflects the offset degree of the projection picture relative to the imaging position in the reference projection picture.

[0098] Step S2032 , calculating the panel offset value between each monochromatic light-emitting panel in the test projection module according to the pixel offset value, wherein the panel offset value is linearly proportional to the pixel offset value.

[0099] The panel offset value between each monochrome light-emitting panel in the test projection module is calculated based on the calculated pixel offset value, wherein the panel offset value represents the degree of offset of the relative position between each monochrome light-emitting panel, and there is a linear proportional relationship between the panel offset value and the pixel offset value.

[0100] Exemplarily, the positions of feature points A1 to An in the first projection screen (i.e., the screen obtained by projecting the test image by the red light panel) are determined to be R1 to Rn, and the positions in the second projection screen (i.e., the screen obtained by projecting the test image by the green light panel) are determined to be G1 to Gn. The displacement differences of each feature point between the first and second projection screens are calculated as differ1 = G1 - R1, ..., different = Gn - Rn. The displacement differences of each feature point are summed and averaged to obtain the pixel offset value of each projection screen, pixel offset value moveDistance(pixel) = (differ1 + ... + different) / n. There is a proportional relationship α between the panel offset value and the pixel offset value. The panel offset value between the red and green panels is moveDistance(m) = moveDistance(pixel) × α. Similarly, the panel offset value between the red and blue panels, as well as the panel offset value between the blue and green panels, can be calculated.

[0101] In a feasible embodiment, step S30 may further include steps S40 to S60:

[0102] Step S40, obtaining each verification screen when the test projection module projects and displays the test image through each projection channel;

[0103] After adjusting the position of the monochrome light-emitting panel, the test projection module emits light through each monochrome light-emitting panel (using single-channel projection, dual-channel projection or three-channel projection). These lights pass through their corresponding projection channels to project and display the pre-set test image to form a new projection screen. At this time, the image acquisition device acquires the projection screen, that is, the verification screen. The verification screen reflects the projection screen effect of each single-channel projection of the test projection module. In single-channel projection, three verification screens need to be acquired, and each verification screen contains the screen when one channel projects the test image; in dual-channel projection, two verification screens are acquired, and each verification screen contains the screen when two channels simultaneously project the test image; in three-channel projection, one verification screen is acquired, and the verification screen contains the screen when three channels simultaneously project the test image.

[0104] Step S50, determining panel offset values between the single-color light emitting panels according to the feature point positions in the respective verification images;

[0105] The feature point positions in each verification image are identified, and by comparing the position differences of these feature points in different verification images, panel offset values between the single-color light emitting panels can be calculated, i.e., whether the relative position relationship between the single-color light emitting panels after adjustment is ideal is determined.

[0106] Step S60, determining whether the assembly positions of the single-color light emitting panels meet the assembly precision requirement according to the panel offset values.

[0107] The measured panel offset values are compared with a preset panel offset threshold value (which can be set to zero or other numerical values), if the panel offset values between the single-color light emitting panels do not exceed the panel offset threshold value, it is determined that the assembly positions of the single-color light emitting panels meet the assembly precision requirement; if there is a panel offset value that exceeds the panel offset threshold value, the assembly positions need to be adjusted again until the panel alignment state that meets the assembly precision requirement is reached.

[0108] In a feasible embodiment, step S30 can include steps S301-S303:

[0109] Step S301, when the single-color light emitting panels include a red light panel, a green light panel and a blue light panel, the assembly position of the red light panel is taken as the reference assembly position.

[0110] When the single-color light emitting panels include a red light panel, a green light panel and a blue light panel, the assembly position of the red light panel is determined as the reference assembly position, and in other feasible embodiments, the assembly position of the green light panel or the blue light panel can also be selected as the reference assembly position.

[0111] Step S302, adjusting the assembly position of the green light panel according to the panel offset value between the green light panel and the red light panel.

[0112] After the reference assembly position of the red light panel is determined, the assembly position of the green light panel is adjusted according to the panel offset value between the green light panel and the red light panel to ensure that the relative position relationship between the green light panel and the red light panel reaches the best state.

[0113] Step S303, adjusting the assembly position of the blue light panel according to the panel offset value between the blue light panel and the red light panel.

[0114] After the reference assembly position of the red light panel is determined, the assembly position of the blue light panel is adjusted according to the panel offset value between the blue light panel and the red light panel to ensure that the relative position relationship between the blue light panel and the red light panel reaches the best state.

[0115] In addition, to further ensure the assembly alignment effect between the single-color light-emitting panels, whether the relative position relationship between the single-color light-emitting panels reaches an optimal state can be verified according to the panel offset value between the blue light panel and the green light panel, so as to ensure that the imaging pictures of each projection channel in the adjusted test projection module can be superimposed.

[0116] Therefore, in the panel assembly process of the test projection module, the projection pictures of the test projection module when respectively projecting the test images through each projection channel are automatically acquired, the panel offset value between the single-color light-emitting panels is determined according to each projection picture, and then the assembly position of each single-color light-emitting panel is automatically adjusted according to the panel offset value, so that the imaging pictures of each projection channel in the adjusted test projection module can be superimposed. Through standardized calculation and adjustment, it is ensured that the panel assembly precision of each projection product can reach the factory standard, the panel assembly efficiency is improved, the imaging offset problem caused by manual assembly misalignment is reduced, and the imaging effect of the projection product is improved.

[0117] It should be noted that the above examples are only used for understanding the present application and do not constitute a limitation on the panel assembly method of the present application. More forms of simple transformation based on this technical concept are within the protection scope of the present application.

[0118] The present application also provides a panel assembly device, please refer to Figure 5 The panel assembly device comprises:

[0119] The picture acquisition module 10 is configured to acquire each projection picture when the test projection module respectively projects and displays a preset test image through each projection channel.

[0120] The offset value calculation module 20 is configured to calculate the panel offset value between each single-color light-emitting panel in the test projection module according to each projection picture.

[0121] The assembly module 30 is configured to adjust the assembly position of each single-color light-emitting panel according to the panel offset value, so that the panel offset value meets the preset assembly precision requirement.

[0122] Optionally, the panel assembly device further comprises a test image determination module (not shown), and the test image determination module is configured to:

[0123] Perform brightness calibration on each projection channel according to the preset assembly requirement;

[0124] When the brightness difference between each projection channel exceeds a preset threshold, determine the preset circular array image as the test image, wherein the sizes of the circles in each circular array image projected and displayed by each projection channel are different.

[0125] When the brightness difference between the projection channels does not exceed a preset threshold, the preset grid image is determined as a test image.

[0126] Optionally, the offset value calculation module 20 is further configured to:

[0127] For each projection image, determine the position of each feature point in the projection image;

[0128] For each feature point, calculate the displacement difference of the feature point in different projection images;

[0129] The panel offset values ​​between the monochromatic light-emitting panels in the test projection module are calculated according to the displacement difference of each feature point.

[0130] Optionally, the offset value calculation module 20 is further configured to:

[0131] When the test image is a circular array image, for each projection screen, the center position of each circular area in the projection screen is determined, and the center position of each circle is used as the position of each feature point;

[0132] When the test image is a grid image, for each projection screen, the position of each grid point in the projection screen is determined, and the position of each grid point is used as the position of each feature point.

[0133] Optionally, the offset value calculation module 20 is further configured to:

[0134] The displacement differences of each feature point are summed and averaged to obtain the pixel offset value of each projection image;

[0135] The panel offset value between each monochromatic light-emitting panel in the test projection module is calculated according to the pixel offset value, wherein the panel offset value is linearly proportional to the pixel offset value.

[0136] Optionally, the panel assembly device further includes a verification module (not shown), which is configured to:

[0137] Obtaining each verification screen when the test projection module projects and displays the test image through each projection channel;

[0138] Determine the panel offset value between each monochromatic light-emitting panel according to the position of the feature point in each verification screen;

[0139] It is determined whether the assembly position of each monochromatic light-emitting panel meets the assembly accuracy requirement according to the offset value of each panel.

[0140] Optionally, the assembly module 30 is further configured to:

[0141] When the single-color light emitting panel includes a red panel, a green panel, and a blue panel, the assembly position of the red panel is used as the reference assembly position;

[0142] Adjust the assembly position of the green light panel according to the panel offset value between the green light panel and the red light panel;

[0143] Adjust the assembly position of the blue light panel according to the panel offset value between the blue light panel and the red light panel.

[0144] The panel assembly device provided in the embodiments of the present application utilizes the panel assembly method described in the aforementioned embodiments to effectively detect and correct imaging offset issues, thereby improving the imaging quality of projection products. Compared to the prior art, the beneficial effects of the panel assembly device provided in the embodiments of the present application are the same as those of the panel assembly method described in the aforementioned embodiments. Other technical features of the panel assembly device are the same as those disclosed in the aforementioned embodiments and are not further elaborated here.

[0145] An embodiment of the present application provides an electronic device, which includes: at least one processor; and a memory communicatively connected to the at least one processor; wherein the memory stores instructions that can be executed by the at least one processor, and the instructions are executed by the at least one processor so that the at least one processor can execute the panel assembly method in the above-mentioned embodiment one.

[0146] Reference below Figure 6 , which shows a schematic diagram of the structure of an electronic device suitable for implementing the embodiments of the present application. The electronic devices in the embodiments of the present application may include, but are not limited to, mobile terminals such as laptop computers, digital broadcast receivers, PDAs (Personal Digital Assistants), PADs (Portable Application Descriptions), etc., and fixed terminals such as digital TVs and desktop computers. Figure 6 The electronic device shown is merely an example and should not limit the functions and scope of use of the embodiments of the present application.

[0147] like Figure 6As shown, the electronic device may include a processing device 1001 (e.g., a central processing unit, a graphics processing unit, etc.), which can perform various appropriate actions and processes based on programs stored in a read-only memory (ROM) 1002 or programs loaded from a storage device 1003 into a random access memory (RAM) 1004. RAM 1004 also stores various programs and data required for the operation of the electronic device. The processing device 1001, ROM 1002, and RAM 1004 are connected to each other via a bus 1005. An input / output (I / O) interface 1006 is also connected to the bus. Typically, the following systems can be connected to the I / O interface 1006: an input device 1007 including, for example, a touch screen, a touchpad, a keyboard, a mouse, an image sensor, a microphone, an accelerometer, a gyroscope, etc.; an output device 1008 including, for example, a liquid crystal display (LCD), a speaker, a vibrator, etc.; a storage device 1003 including, for example, a magnetic tape, a hard disk, etc.; and a communication device 1009. The communication device 1009 can allow the electronic device to communicate with other devices wirelessly or by wire to exchange data. Although the figure shows an electronic device with various systems, it should be understood that it is not required to implement or have all the systems shown. More or fewer systems can be implemented or have alternatively.

[0148] In particular, according to the embodiments disclosed in the present application, the processes described above with reference to the flowcharts can be implemented as computer software programs. For example, the embodiments disclosed in the present application include a computer program product comprising a computer program carried on a computer-readable medium, the computer program comprising program code for executing the method shown in the flowchart. In such an embodiment, the computer program can be downloaded and installed from a network via a communication device, or installed from a storage device 1003, or installed from a ROM 1002. When the computer program is executed by the processing device 1001, the above-mentioned functions defined in the method of the embodiment disclosed in the present application are executed.

[0149] The electronic device provided in the embodiments of the present application utilizes the panel assembly method of the aforementioned embodiments to effectively detect and correct imaging offset issues, thereby improving the imaging quality of projection products. Compared to the prior art, the beneficial effects of the electronic device provided in the embodiments of the present application are the same as those of the panel assembly method provided in the aforementioned embodiments. Other technical features of the electronic device are the same as those disclosed in the panel assembly method of the aforementioned embodiments and are not further described here.

[0150] It should be understood that the various parts disclosed in the embodiments of the present application can be implemented using hardware, software, firmware, or a combination thereof. In the description of the above embodiments, specific features, structures, materials, or characteristics can be combined in any appropriate manner in any one or more embodiments or examples.

[0151] The above are only specific embodiments of the present application, but the scope of protection of this application is not limited thereto. Any changes or substitutions that can be easily conceived by a person skilled in the art within the technical scope disclosed in this application should be included in the scope of protection of this application. Therefore, the scope of protection of this application should be based on the scope of protection of the claims.

[0152] An embodiment of the present application provides a computer-readable storage medium having computer-readable program instructions (ie, a computer program) stored thereon, wherein the computer-readable program instructions are used to execute the panel assembly method in the above embodiment.

[0153] The computer-readable storage medium provided in the embodiment of the present application can be, for example, a USB flash drive, but is not limited to electrical, magnetic, optical, electromagnetic, infrared, or semiconductor systems or devices, or any combination thereof. More specific examples of computer-readable storage media can include, but are not limited to: an electrical connection with one or more wires, a portable computer disk, a hard disk, a random access memory (RAM: Random Access Memory), a read-only memory (ROM: Read Only Memory), an erasable programmable read-only memory (EPROM: Erasable Programmable Read Only Memory or flash memory), an optical fiber, a portable compact disk read-only memory (CD-ROM: CD-Read Only Memory), an optical storage device, a magnetic storage device, or any suitable combination thereof. In this embodiment, the computer-readable storage medium can be any tangible medium that contains or stores a program that can be used by or in combination with an instruction execution system or device. The program code contained on the computer-readable storage medium can be transmitted using any appropriate medium, including but not limited to: wires, optical cables, RF (Radio Frequency: radio frequency), etc., or any suitable combination thereof.

[0154] The computer-readable storage medium may be included in the electronic device, or may exist independently without being incorporated into the electronic device.

[0155] The above-mentioned computer-readable storage medium carries one or more programs. When the above-mentioned one or more programs are executed by an electronic device, the electronic device: obtains each projection screen when the test projection module projects and displays a preset test image through each projection channel; calculates the panel offset value between each monochrome light-emitting panel in the test projection module according to each projection screen; and adjusts the assembly position of each monochrome light-emitting panel according to the panel offset value so that the panel offset value meets the preset assembly accuracy requirement.

[0156] The computer program code for performing the operations of the embodiments of the present application can be written in one or more programming languages ​​or a combination thereof, including object-oriented programming languages ​​such as Java, Smalltalk, C++, and conventional procedural programming languages ​​such as "C" language or similar programming languages. The program code can be executed entirely on the user's computer, partially on the user's computer, as an independent software package, partially on the user's computer and partially on a remote computer, or entirely on a remote computer or server. In the case of a remote computer, the remote computer can be connected to the user's computer through any type of network, including a local area network (LAN) or a wide area network (WAN), or can be connected to an external computer (for example, using an Internet service provider to connect through the Internet).

[0157] The flow charts and block diagrams in the accompanying drawings illustrate the possible architecture, functions and operations of the systems, methods and computer program products according to various embodiments of the present application. In this regard, each box in the flow chart or block diagram can represent a module, program segment or a part of code, and the module, program segment or a part of code contains one or more executable instructions for realizing the specified logical function. It should also be noted that in some alternative implementations, the functions marked in the box can also occur in a different order than that marked in the accompanying drawings. For example, two boxes represented in succession can actually be executed substantially in parallel, and they can sometimes be executed in the opposite order, depending on the functions involved. It should also be noted that each box in the block diagram and / or flow chart, and the combination of the boxes in the block diagram and / or flow chart can be implemented by a dedicated hardware-based system that performs the specified function or operation, or can be implemented by a combination of dedicated hardware and computer instructions.

[0158] The modules described in the embodiments of the present application may be implemented in software or hardware, wherein the name of a module does not necessarily limit the unit itself.

[0159] The computer-readable storage medium provided in the embodiments of this application is a computer-readable storage medium that stores computer-readable program instructions (i.e., a computer program) for executing the aforementioned panel assembly method. This computer-readable storage medium can effectively detect and correct imaging offset issues to improve the imaging quality of projection products. Compared to the prior art, the beneficial effects of the computer-readable storage medium provided in the embodiments of this application are similar to those of the panel assembly method provided in the aforementioned embodiments and are not further elaborated here.

[0160] The above are only some embodiments of the present application and are not intended to limit the patent scope of the present application. All equivalent structural transformations made using the contents of the present application specification and drawings under the technical concept of the present application, or direct / indirect application in other related technical fields are included in the patent protection scope of the present application.

Claims

1. A panel assembly method, characterized in that: The panel assembly method comprises: Obtaining each projection screen when the test projection module projects and displays the preset test image through each projection channel; Calculating panel offset values ​​between each monochromatic light-emitting panel in the test projection module according to each of the projection images; adjusting the assembly position of each of the monochromatic light-emitting panels according to the panel offset value so that the panel offset value meets a preset assembly accuracy requirement; The step of calculating the panel offset value between each monochromatic light-emitting panel in the test projection module according to each projection screen includes: For each of the projection images, determining the position of each feature point in the projection image; For each of the feature points, calculating the displacement difference between the positions of the feature point in different projection images; Calculating the panel offset value between each monochromatic light-emitting panel in the test projection module according to the displacement difference of each characteristic point; The step of calculating the panel offset value between each monochromatic light-emitting panel in the test projection module according to the displacement difference of each feature point includes: Summing and averaging the displacement differences of the feature points to obtain pixel offset values ​​of the projection images; The panel offset value between each monochromatic light-emitting panel in the test projection module is calculated according to the pixel offset value, wherein the panel offset value is linearly proportional to the pixel offset value.

2. The panel assembly method according to claim 1, wherein: Before the step of obtaining each projection screen when the test projection module projects and displays the preset test image through each projection channel, the method further includes: Performing brightness calibration on each of the projection channels according to preset assembly requirements; When the brightness difference between the projection channels exceeds a preset threshold, a preset circular array image is determined as a test image, wherein the sizes of the circles in the circular array images projected and displayed by the projection channels are different; When the brightness difference between the projection channels does not exceed the preset threshold, the preset grid image is determined as the test image.

3. The panel assembly method according to claim 1, wherein: The step of determining the position of each feature point in each projection picture includes: When the test image is a circular array image, for each of the projection images, determining the center position of each circular area in the projection image, and using the center position of each circle as the position of each feature point; When the test image is a grid image, for each of the projection images, the positions of the grid points in the projection image are determined, and the positions of the grid points are used as the positions of the feature points.

4. The panel assembly method according to claim 1, wherein: After the step of adjusting the assembly position of each of the monochromatic light-emitting panels according to the panel offset value, the method further includes: Acquire each verification screen when the test projection module projects and displays the test image through each projection channel; determining a panel offset value between each of the monochromatic light-emitting panels according to a position of a feature point in each of the verification images; Whether the assembly position of each of the monochromatic light-emitting panels meets the assembly accuracy requirement is determined according to each of the panel offset values.

5. The panel assembly method according to any one of claims 1 to 4, wherein: The step of adjusting the assembly position of each of the monochromatic light-emitting panels according to the panel offset value includes: When the monochromatic light emitting panel includes a red panel, a green panel, and a blue panel, the assembly position of the red panel is used as the reference assembly position; adjusting an assembly position of the green light panel according to a panel offset value between the green light panel and the red light panel; The assembly position of the blue light panel is adjusted according to the panel offset value between the blue light panel and the red light panel.

6. A panel assembly device, characterized in that: The panel assembly device comprises: The image acquisition module is used to acquire each projection image when the test projection module projects and displays the preset test image through each projection channel; an offset value calculation module, configured to calculate the panel offset value between each monochromatic light-emitting panel in the test projection module according to each projection image; an assembly module, configured to adjust an assembly position of each of the monochromatic light-emitting panels according to the panel offset value, so that the panel offset value meets a preset assembly accuracy requirement; The offset value calculation module is further used to: For each of the projection images, determining the position of each feature point in the projection image; For each of the feature points, calculating the displacement difference between the positions of the feature point in different projection images; Calculating the panel offset value between each monochromatic light-emitting panel in the test projection module according to the displacement difference of each characteristic point; The offset value calculation module is further used to: Summing and averaging the displacement differences of the feature points to obtain pixel offset values ​​of the projection images; The panel offset value between each monochromatic light-emitting panel in the test projection module is calculated according to the pixel offset value, wherein the panel offset value is linearly proportional to the pixel offset value.

7. An electronic device, characterized in that: The device comprises: a memory, a processor, and a computer program stored in the memory and executable on the processor, wherein the computer program is configured to implement the steps of the panel assembly method according to any one of claims 1 to 5.

8. A storage medium, characterized in that: The storage medium is a computer-readable storage medium, and a computer program is stored on the storage medium. When the computer program is executed by a processor, the steps of the panel assembly method according to any one of claims 1 to 5 are implemented.

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