Panel assembly method and device, electronic equipment and storage medium

Abstract

The invention discloses a panel assembling method and device, electronic equipment and a storage medium, and relates to the technical field of display, and the panel assembling method comprises the steps: obtaining each projection picture when a test projection module performs projection display on a preset test image through each projection channel; calculating a panel deviation value between the monochromatic light-emitting panels in the test projection module according to the projection pictures; and adjusting the assembly position of each single-color light-emitting panel according to the panel deviation value, so that the panel deviation value meets a preset assembly precision requirement. According to the invention, the imaging offset problem can be effectively detected and corrected 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 is gradually becoming the mainstream product of the new generation of display with its low power consumption, long life and high brightness.

[0003] At present, 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, the process is cumbersome, and it is difficult to form a unified and standardized adjustment plan. It is difficult to ensure that the imaging offset problem caused by the panel assembly alignment deviation can be effectively identified and corrected, resulting in uneven imaging quality of products leaving the factory.

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

[0005] The main purpose of the present 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] Acquire each projection screen when the test projection module projects and displays the preset test image through each projection channel;

[0008] Calculating the panel offset value 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 the 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, the preset grid image is determined as the test image.

[0014] In one 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 includes:

[0015] For each of the projection pictures, determining the position of each feature point in the projection picture;

[0016] For each of the feature points, calculating the displacement difference of the position of the feature point in different projection images;

[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 characteristic point.

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

[0019] When the test image is a circular array image, for each of the projection images, the center position of each circular area in the projection image is determined, and each of the center positions is used as the position of each feature point;

[0020] When the test image is a grid image, for each of the projection images, the positions of each grid point in the projection image are determined, and the positions of each grid point are used as the positions of each feature point.

[0021] In one 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 includes:

[0022] The displacement differences of the feature points are summed and averaged to obtain pixel offset values ​​of the projection images;

[0023] The panel offset value between each monochrome 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 one embodiment, 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:

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

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

[0027] 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.

[0028] In one embodiment, the step of adjusting the assembly position of each of the monochromatic light-emitting panels according to the panel offset value comprises:

[0029] When the monochromatic light emitting panel includes a red light panel, a green light panel and a blue light panel, the assembly position of the red light panel is used as the reference assembly position;

[0030] 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;

[0031] 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.

[0032] In addition, to achieve the above-mentioned purpose, the present application also proposes a panel assembly device, which includes:

[0033] 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;

[0034] An offset value calculation module, used for calculating the panel offset value between each monochromatic light-emitting panel in the test projection module according to each projection picture;

[0035] The assembly module is used to adjust the assembly position of each of the monochromatic light-emitting panels according to the panel offset value, so that the panel offset value meets the preset assembly accuracy requirement.

[0036] In addition, to achieve the above objectives, the present application also proposes an electronic device, which includes: 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 as described above.

[0037] In addition, to achieve the above objectives, the present application also proposes a storage medium, which is a computer-readable storage medium. 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 as described above are implemented.

[0038] The present application proposes a panel assembly method, in which a test projection module projects and displays a preset test image through its own independent projection channels, and obtains each projection screen of the projection display. Then, the panel offset value between each monochrome light-emitting panel in the test projection module is calculated according to each obtained projection screen. Finally, the assembly position of each monochrome light-emitting panel is adjusted according to the calculated panel offset value, so that the panel offset value of each monochrome light-emitting panel meets the preset assembly accuracy requirement.

[0039] In summary, 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 value between each monochrome light-emitting panel according to each projection picture, and then automatically adjusts the assembly position of each monochrome light-emitting panel according to the panel offset value, so that the imaging pictures of each projection channel in the adjusted test projection module can overlap, and through standardized calculation and adjustment, ensures 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 misaligned manual assembly, and improving the imaging effect of the projection product. BRIEF DESCRIPTION OF THE DRAWINGS

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

[0041] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, for ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0042] Figure 1 A schematic diagram of a process flow provided for the first embodiment of the panel assembly method of the present application;

[0043] Figure 2 A schematic diagram of a test image provided for Embodiment 2 of the panel assembly method of the present application;

[0044] Figure 3 A schematic diagram of a projection screen provided in Example 2 of the panel assembly method of the present application;

[0045] Figure 4 Another schematic diagram of a projection screen provided for the second embodiment of the panel assembly method of the present application;

[0046] Figure 5 This is a schematic diagram of the structure of a panel assembly device according to an embodiment of the present application;

[0047] Figure 6 It is a schematic diagram of the equipment 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 described 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 only used to explain the technical solutions of the present application and are not used 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 a 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 requirement.

[0052] At present, 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, the process is cumbersome, and it is difficult to form a unified and standardized adjustment plan. Specifically, the current panel assembly process mainly uses image acquisition equipment to capture the projection screen of the projection module when all projection channels are turned on, and then judges whether there is an imaging offset problem in the projection screen based on the naked eye. This method is 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 products leaving the factory.

[0053] The embodiment of the present application provides a solution, which automatically obtains the projection pictures of the test projection module 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 value between each monochrome light-emitting panel according to each projection picture, and then automatically adjusts the assembly position of each monochrome light-emitting panel according to the panel offset value, so that the imaging pictures of each projection channel in the adjusted test projection module can overlap, and through standardized calculation and adjustment, ensures 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 this embodiment can be a computing service device with data processing, network communication and program running functions, such as a computer, a server, etc., or an electronic device capable of realizing the above functions, etc. The following takes the panel assembly equipment as an example to illustrate this embodiment and the following embodiments.

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

[0056] Based on this, the embodiment of the present application provides a panel assembly method, referring to Figure 1 , Figure 1 This is a schematic diagram of the flow of the first embodiment of the panel assembly method of the present application.

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

[0058] Step S10, obtaining each projection screen when the test projection module projects and displays the preset test image through each projection channel;

[0059] The test projection module will emit light through each monochrome light-emitting panel. These lights pass through their corresponding projection channels to project and display the pre-set test image to form a projection screen. At this time, the image acquisition device captures the projection screen, which reflects the projection screen effect of each single channel projection of the test projection module.

[0060] Taking the monochrome light-emitting panels including Rpanel (red light panel), Gpanel (green light panel) and Bpanel (blue light panel) as an example, the steps of projecting and displaying the test image using a 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 implementation, dual-channel projection or three-channel simultaneous projection may 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 may also be selected as the reference position, and the order of the two projections may 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 the 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 ghost images. 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 picture;

[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, and these feature points can be easily identified and tracked marks, such as the center of a circular array image or the grid points of a grid image; then, image processing is performed on each projection screen to accurately identify and locate the positions of all feature points; then, the positions of the same feature point in different projection screens are compared, and the displacement difference between them is calculated; finally, based on the displacement difference of all feature points, the panel offset value between each monochrome light-emitting panel is obtained through statistics and calculation.

[0067] In another feasible implementation, each projection image is grayed, and then grayscale projections are performed on rows and columns to obtain grayscale projection values; then, the similarity of grayscale projection values ​​between different projection images is calculated to evaluate the degree of offset between them; finally, based on the calculation results of the similarity, the panel offset values ​​between each monochrome light-emitting panel are calculated. In actual application scenarios, a suitable implementation method can be selected according to the specific characteristics of the test projection module and the test requirements.

[0068] Step S30, 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.

[0069] The assembly position of each monochrome light-emitting panel is adjusted according to the calculated panel offset value to ensure that the panel offset value of the test projection module meets the preset assembly accuracy requirement. The assembly accuracy requirement is to reduce or eliminate the panel offset value between each monochrome light-emitting panel to make the projection image projected by the test projection module clearer.

[0070] It should be noted that the assembly position of each monochrome light-emitting panel can be adjusted by using a fine-tuning mechanism in the test projection module, such as a precision slide rail, fine-tuning screws, etc., to fine-tune the assembly position of the monochrome light-emitting panel. During the adjustment process, it is carried out in a specific order to avoid mutual interference or new errors. For example, one of the monochrome light-emitting panels is pre-determined as a reference panel, the position of the reference panel is determined first, and then the positions of 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 value between each monochrome light-emitting panel according to each projection picture, and then automatically adjusts the assembly position of each monochrome light-emitting panel according to the panel offset value, so that the imaging pictures 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 misaligned manual assembly, and improving the imaging effect of the projection product.

[0072] Based on the first embodiment of the present application, in the second embodiment of the present application, the same or similar contents as those in the above-mentioned embodiment 1 can be referred to the above introduction, and will not be repeated in the following. On this basis, steps A10 to A30 may also be included before step S10:

[0073] Step A10, calibrating the brightness of each projection channel according to preset assembly requirements;

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

[0075] According to the preset assembly requirements, the brightness of each projection channel is calibrated so that the projection brightness of each projection channel meets the assembly requirements.

[0076] Step A20, when the brightness difference between the projection channels exceeds a preset threshold, determining a preset circle array image as a test image, wherein the sizes of circles in the circle array images projected and displayed by the projection channels are different;

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

[0078] Step A30: When the brightness difference between the projection channels does not exceed the preset threshold, the preset grid image is determined as the test image.

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

[0080] Exemplarily, when the test image is a grid image, the test image is as follows: Figure 2 As shown, when dual-channel projection is used and the two channels are set to different brightness, if the dual-channel light panels are assembled correctly, the projection image captured by the black and white camera is as follows Figure 3As shown, the projection image has no offset at this time. When there is an error in the assembly of the dual-channel light-emitting panel, the projection image captured by the black and white camera is as follows Figure 4 As shown, if there is a screen offset in the projection pictures projected by the two channels, it is necessary to adjust the assembly position of the light-emitting panel according to the projection pictures.

[0081] When the test image is a circular array image, that is, a circular primitive is set at each grid point position in the grid image, and the size of the circle center element set for each channel is different. Three-channel projection is adopted, and the three channels are set to different brightnesses. When the light-emitting panels of the three channels are assembled correctly, the centers of the three different sizes of circular primitives in the projection picture captured by the black-and-white camera coincide with each other. When there are errors in the assembly of the light-emitting panels of the three channels, the center positions in the projection picture captured by the black-and-white camera do not coincide, that is, there is an image offset in the projection pictures projected by the three channels, and the assembly position of the light-emitting panel needs to be adjusted according to the projection picture.

[0082] In a feasible embodiment, step S20 may include steps S201 to S203:

[0083] Step S201, for each projection picture, determine the position of each feature point in the projection picture;

[0084] After acquiring each projection image, the position of each feature point in the projection image is determined by image recognition technology, where a feature point refers to a point in the projection image that has clear identification and is easy to identify and track, such as a corner point, center point, etc. in the projection image, or other position points with significant visual features.

[0085] In a feasible embodiment, step S201 may include steps S2011 to S2012:

[0086] Step S2011, 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 each center position is used as the position of each feature point;

[0087] When the test image is selected as a circular array image, the center of each circular area is located in each projection screen, the center is used as the feature point of the test image, and the center of the circular area in all projection screens is identified and located.

[0088] Step S2012, when the test image is a grid image, for each projection screen, determine the position of each grid point in the projection screen, and use the position of each grid point as the position of each feature point, the grid point refers to.

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

[0090] Step S202, for each feature point, calculating the displacement difference of the position 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 to calculate the difference between them, that is, the displacement difference, which 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] According to the displacement difference of each feature point, the panel offset value between each monochromatic light-emitting panel in the test projection module is calculated.

[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; calculate the panel offset value between the red light panel and the blue light panel based on the first displacement difference of each feature point, and calculate the panel offset value between the red light panel and the green light panel based on the second displacement difference of each feature point.

[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 a 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 monochrome 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 according to the calculated pixel offset value, wherein the panel offset value represents the offset degree 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, and the displacement differences of each feature point between the first projection screen and the second projection screen are calculated as differ1=G1-R1, ..., different=Gn-Rn, and the displacement differences of each feature point are summed and averaged to obtain the pixel offset value of each projection screen, the pixel offset value moveDistance(pixel)=(differ1+...+differn) / n, there is a proportional relationship α between the panel offset value and the pixel offset value, and the panel offset value between the red light panel and the green light panel is moveDistance(m)=moveDistance(pixel)×α. Similarly, the panel offset value between the red light panel and the blue light panel, and the panel offset value between the blue light panel and the green light panel 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 light rays 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 a screen when one channel projects the test image; in dual-channel projection, two verification screens are acquired, and each verification screen contains a screen when two channels simultaneously project the test image; in three-channel projection, one verification screen is acquired, and the verification screen contains a screen when three channels simultaneously project the test image.

[0104] Step S50, determining the panel offset value between each monochromatic light-emitting panel according to the position of the feature point in each verification screen;

[0105] By identifying the position of the feature points in each verification screen and comparing the position differences of these feature points in different verification screens, the panel offset value between each monochrome light-emitting panel can be calculated, that is, whether the relative position relationship between each monochrome light-emitting panel after adjustment is determined to be ideal.

[0106] Step S60: determining whether the assembly position of each monochromatic light-emitting panel meets the assembly accuracy requirement according to the offset value of each panel.

[0107] The measured panel offset value is compared with a preset panel offset threshold (which can be set to zero or other values). If the panel offset values ​​between any two monochrome light-emitting panels do not exceed the panel offset threshold, it is determined that the current assembly positions of the monochrome light-emitting panels meet the assembly accuracy requirements. If there is a panel offset value that exceeds the panel offset threshold, the assembly position needs to be readjusted until the panel alignment state that meets the assembly accuracy requirements is reached.

[0108] In a feasible embodiment, step S30 may include steps S301 to S303:

[0109] Step S301, when the monochromatic light emitting panel includes a red light panel, a green light panel and a blue light panel, the assembly position of the red light panel is used as a reference assembly position;

[0110] 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 determined as the reference assembly position. In other feasible embodiments, the assembly position of the green panel or the blue panel may 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 determining the reference assembly position of the red panel, the assembly position of the green panel is adjusted according to the panel offset value between the green panel and the red panel to ensure that the relative position relationship between the green panel and the red panel reaches an optimal 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 determining the reference assembly position of the red panel, the assembly position of the blue panel is adjusted according to the panel offset value between the blue panel and the red panel to ensure that the relative position relationship between the blue panel and the red panel reaches an optimal state.

[0115] In addition, to further ensure the assembly alignment effect between the monochrome light-emitting panels, the panel offset value between the blue light panel and the green light panel can be used to verify whether the relative position relationship between the monochrome light-emitting panels has reached the optimal state, thereby ensuring that the imaging images of each projection channel in the adjusted test projection module can overlap.

[0116] In this way, during the panel assembly process of the test projection module, the projection pictures when the test projection module projects the test image through each projection channel are automatically obtained, and the panel offset values ​​between each monochrome light-emitting panel are determined according to each projection picture. Then, the assembly position of each monochrome 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 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 misaligned manual assembly, and improving the imaging effect of the projection product.

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

[0118] The present application also provides a panel assembly device. Figure 5 , the panel assembly device comprises:

[0119] The image acquisition module 10 is used to acquire each projection image when the test projection module projects and displays the preset test image through each projection channel;

[0120] An offset value calculation module 20, used to calculate the panel offset value between each monochromatic light-emitting panel in the test projection module according to each projection picture;

[0121] The assembly module 30 is used to adjust 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.

[0122] Optionally, the panel assembly device further includes a test image determination module (not shown), the test image determination module being used to:

[0123] Perform brightness calibration for each projection channel according to preset assembly requirements;

[0124] 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;

[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 used for:

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

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

[0129] 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.

[0130] Optionally, the offset value calculation module 20 is further used for:

[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 each center position 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 used for:

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

[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), the verification module being used to:

[0137] Acquire 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] Whether the assembly position of each monochromatic light-emitting panel meets the assembly accuracy requirement is determined according to the offset value of each panel.

[0140] Optionally, the assembly module 30 is further used for:

[0141] When the monochromatic light emitting panel includes a red light panel, a green light panel and a blue light panel, the assembly position of the red light 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] 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.

[0144] The panel assembly device provided in the embodiment of the present application adopts the panel assembly method in the above embodiment, which can effectively detect and correct the imaging offset problem to improve the imaging effect of the projection product. Compared with the prior art, the beneficial effects of the panel assembly device provided in the embodiment of the present application are the same as the beneficial effects of the panel assembly method provided in the above embodiment, and other technical features in the panel assembly device are the same as the features disclosed in the panel assembly method in the above embodiment, which will not be repeated 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 executable 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 device in the embodiments of the present application may include but is 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, desktop computers, etc. Figure 6 The electronic device shown is merely an example and should not bring any limitation to 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 processor, etc.), which can perform various appropriate actions and processes according to a program stored in a read-only memory (ROM: Read Only Memory) 1002 or a program loaded from a storage device 1003 to a random access memory (RAM: Random Access Memory) 1004. In RAM1004, various programs and data required for the operation of the electronic device are also stored. The processing device 1001, ROM1002, and RAM1004 are connected to each other through a bus 1005. An input / output (I / O) interface 1006 is also connected to the bus. Generally, the following systems can be connected to the I / O interface 1006: an input device 1007 including, for example, a touch screen, a touch pad, 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: Liquid Crystal Display), 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 process described above with reference to the flowchart can be implemented as a computer software program. For example, the embodiments disclosed in the present application include a computer program product, which includes a computer program carried on a computer-readable medium, and the computer program includes a 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 through 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 embodiment of the present application adopts the panel assembly method in the above embodiment, which can effectively detect and correct the imaging offset problem to improve the imaging effect of the projection product. Compared with the prior art, the beneficial effects of the electronic device provided in the embodiment of the present application are the same as the beneficial effects of the panel assembly method provided in the above embodiment, and other technical features in the electronic device are the same as the features disclosed in the panel assembly method in the previous embodiment, which will not be repeated here.

[0150] It should be understood that the various parts disclosed in the embodiments of the present application can be implemented by 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 one or more embodiments or examples in a suitable manner.

[0151] The above are only specific implementations of the present application, but the protection scope of the present application is not limited thereto. Any technician familiar with the technical field can easily think of changes or substitutions within the technical scope disclosed in the present application, which should be included in the protection scope of the present application. Therefore, the protection scope of the present application should be based on the protection scope of the claims.

[0152] An embodiment of the present application provides a computer-readable storage medium having computer-readable program instructions (ie, computer program) stored thereon, and 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 may 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 of the above. More specific examples of computer-readable storage media may 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 of the above. In this embodiment, the computer-readable storage medium may be any tangible medium containing or storing 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 may be transmitted using any appropriate medium, including but not limited to: wires, optical cables, RF (Radio Frequency: Radio Frequency), etc., or any suitable combination of the above.

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

[0155] The computer-readable storage medium carries one or more programs. When the 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 respectively; 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 operation of the embodiment of the present application can be written in one or more programming languages ​​or a combination thereof, and the above-mentioned programming languages ​​include object-oriented programming languages, such as Java, Smalltalk, C++, and also include conventional procedural programming languages, such as "C" language or similar programming languages. The program code can be executed completely on the user's computer, partially on the user's computer, as an independent software package, partially on the user's computer, partially on the remote computer, or completely on the 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: Local Area Network) or a wide area network (WAN: Wide Area Network), or it can be connected to an external computer (for example, using an Internet service provider to connect through the Internet).

[0157] The flow chart and block diagram in the accompanying drawings illustrate the possible architecture, function and operation of the system, method and computer program product according to various embodiments of the present application. In this regard, each square box in the flow chart or block diagram can represent a module, a program segment or a part of a code, and the module, the program segment or a part of the 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 square box can also occur in a sequence different from that marked in the accompanying drawings. For example, two square 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 square box in the block diagram and / or flow chart, and the combination of the square boxes in the block diagram and / or flow chart can be implemented with a dedicated hardware-based system that performs a specified function or operation, or can be implemented with a combination of dedicated hardware and computer instructions.

[0158] The modules involved in the embodiments described in this application may be implemented by software or hardware, wherein the name of the module does not constitute a limitation on the unit itself in some cases.

[0159] The readable storage medium provided in the embodiment of the present application is a computer-readable storage medium, which stores computer-readable program instructions (i.e., computer programs) for executing the above-mentioned panel assembly method, and can effectively detect and correct imaging offset problems to improve the imaging effect of projection products. Compared with the prior art, the beneficial effects of the computer-readable storage medium provided in the embodiment of the present application are the same as the beneficial effects of the panel assembly method provided in the above-mentioned embodiment, and will not be repeated 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 changes 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: Acquire each projection screen when the test projection module projects and displays the preset test image through each projection channel; Calculating the panel offset value between each monochromatic light-emitting panel in the test projection module according to each of the projection images; 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 the preset assembly accuracy requirement.

2. The panel assembly method according to claim 1, characterized in that: 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 calculating the panel offset value between each monochromatic light-emitting panel in the test projection module according to each projection picture includes: For each of the projection pictures, determining the position of each feature point in the projection picture; For each of the feature points, calculating the displacement difference of the position of the feature point in different projection images; The panel offset value between each monochromatic light-emitting panel in the test projection module is calculated according to the displacement difference of each characteristic point.

4. The panel assembly method according to claim 3, characterized in that: 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, the center position of each circular area in the projection image is determined, and each of the center positions is used as the position of each feature point; When the test image is a grid image, for each of the projection images, the positions of each grid point in the projection image are determined, and the positions of each grid point are used as the positions of each feature point.

5. The panel assembly method according to claim 3, characterized in that: 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 characteristic point comprises: The displacement differences of the feature points are summed and averaged to obtain pixel offset values ​​of the projection images; The panel offset value between each monochrome 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.

6. 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 respectively; Determine the panel offset value between each of the monochromatic light-emitting panels according to the position of the 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.

7. The panel assembly method according to any one of claims 1 to 6, characterized in that: The step of adjusting the assembly position of each of the monochromatic light-emitting panels according to the panel offset value comprises: When the monochromatic light emitting panel includes a red light panel, a green light panel and a blue light panel, the assembly position of the red light panel is used as the reference assembly position; 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; 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.

8. 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, used for calculating the panel offset value between each monochromatic light-emitting panel in the test projection module according to each projection picture; The assembly module is used to adjust the assembly position of each of the monochromatic light-emitting panels according to the panel offset value, so that the panel offset value meets the preset assembly accuracy requirement.

9. 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 7.

10. 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 7 are implemented.

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