Automatic calibration assembly line device for two-viewpoint naked eye 3D display equipment

Abstract

The utility model discloses an automatic calibration assembly line device for two-viewpoint naked eye 3D display equipment. The automatic calibration assembly line device comprises a rack, a conveying belt, a partition plate, a support and a reflecting mirror. The conveying belt is installed on the machine frame, a set of partition plates are evenly installed on the conveying belt, the support is installed on the machine frame, and the reflecting mirror is installed on the support and is parallel to the conveying belt. The area between the two partition plates is a calibration station, and the calibration station is used for placing display equipment to be calibrated. The utility model has the advantages that the front camera of the mobile phone is used for comparing pictures with the mirror for calibration, the inconsistency of calibration caused by the difference of visual functions of calibration operators is avoided, and the calibration efficiency is greatly improved by using assembly line work.

Description

Technical Field

[0001] The utility model relates to the technical field of 3D display, in particular to an automatic calibration assembly line device for naked-eye 3D display equipment with two viewpoints. Background Art

[0002] The basic principle of naked-eye 3D is to use the parallax characteristics of human eyes to obtain realistic three-dimensional images with space and depth without any auxiliary equipment (such as 3D glasses, helmets, etc.). The objects in the picture can be protruding from the picture or hidden deep in the picture. The colors are bright, the layers are clear, and the images are vivid and lifelike. They are truly three-dimensional images. Naked-eye three-dimensional images are deeply favored by consumers for their real and vivid expression, beautiful and elegant environmental appeal, and strong and shocking visual impact.

[0003] After sticking a 3D glass film on the display screen of an electronic device and using dedicated image-taking software to convert ordinary videos into 3D display video files, the ordinary display screen can be converted into a 3D display screen.

[0004] Since the pasting positions of 3D glass films on different mobile phones may be slightly different, in order to achieve the best viewing effect, the image arrangement software needs to be calibrated so that the image arrangement of the display screen matches the pasting position of the 3D glass film.

[0005] The calibration of the existing display screen layout software relies on manual work. During the calibration process, the layout software will display a striped pattern for calibration, and the user is required to manually adjust the layout parameters little by little according to the viewed effect to achieve the best viewing effect.

[0006] During the calibration process, the user needs to manually adjust the image arrangement parameters little by little according to the viewed effect. The adjustment process is slow and cumbersome, and due to differences in people's eye distance and visual function, it is difficult to achieve a good viewing effect and consistency, resulting in a poor user experience. Utility Model Content

[0007] In order to solve the problem of slow manual calibration and poor uniformity when calibrating the above-mentioned two-viewpoint naked-eye 3D display device, an automatic calibration pipeline is proposed.

[0008] A 2-viewpoint naked-eye 3D display device automatic calibration assembly line device, comprising a frame, a conveyor belt, a partition, a bracket and a reflector;

[0009] The conveyor belt is installed on the frame, a group of partitions are evenly installed on the conveyor belt, the bracket is installed on the frame, the reflector is installed on the bracket, and the reflector is parallel to the conveyor belt;

[0010] The area between the two partitions is a calibration station, which is used to place the display device to be calibrated.

[0011] Preferably, it further comprises a baffle, which is longitudinally fixed to the bracket, and partitions are provided on both the left and right sides of the baffle, so as to separate the calibration station into two left and right groups.

[0012] Preferably, the bracket and the baffle are both provided with slide grooves, and sliding blocks are provided on both sides of the reflector, and the sliding blocks are assembled in the slide grooves.

[0013] Preferably, a fixing block is provided on the top of the reflector, and a locking screw is provided on the fixing block.

[0014] The utility model has the advantages that the calibration is performed by comparing the image with the mirror using the front camera of the mobile phone, thus avoiding the calibration inconsistency caused by the difference in the visual functions of the calibration workers, and using assembly line operation to greatly improve the calibration efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a schematic diagram of the structure of the utility model Figure 1 ;

[0016] Figure 2 This is a schematic diagram of the structure of the utility model Figure 2 .

[0017] In the picture:. DETAILED DESCRIPTION

[0018] The principles and features of the present invention are described below in conjunction with the accompanying drawings. The examples given are only used to explain the present invention and are not used to limit the scope of the present invention.

[0019] Figure 1-2 As shown, a 2-viewpoint naked-eye 3D display device automatic calibration assembly line device includes a frame 1, a conveyor belt 2, a partition 3, a bracket 4 and a reflector 5; the conveyor belt 2 is installed on the frame 1, a group of partitions 3 are evenly installed on the conveyor belt 2, the bracket 4 is installed on the frame 1, the reflector 5 is installed on the bracket 4, and the reflector 5 is parallel to the conveyor belt 2; the area between every two partitions 3 is a calibration station 6, and the calibration station 6 is used to place the display device to be calibrated;

[0020] When in use, the display device to be calibrated (mobile phone or tablet computer) is placed in the calibration station 6 on the conveyor belt 2, that is, the area between the two partitions 3. As the mobile phone moves forward with the conveyor belt 2, the display screen of the display device displays a special pattern for calibration. The front camera of the display device captures the screen pattern reflected by the reflector 5 and compares it with the standard pattern, thereby calibrating the internal display pattern arrangement software of the mobile phone.

[0021] Since there are multiple partitions 3, the conveyor belt is divided into multiple calibration stations 6. The partitions 3 separate the mobile phones in multiple stations to prevent the pattern displayed on the screen from causing image interference in the reflector 5. By continuously placing display devices at the input end of the conveyor belt, multiple display devices can be calibrated at the same time. After the calibration is completed, the mobile phone falls from the output end, which greatly improves the calibration efficiency.

[0022] In order to increase the flow verification speed of the conveyor line, a baffle 7 is also provided. The baffle 7 is longitudinally fixed on the bracket 4 to divide the conveyor belt 2 into left and right sides. Partitions 3 are provided on the conveyor belt 2 on the left and right sides of the baffle 7, thereby dividing the calibration station 6 into two left and right groups. Finally, the number of calibration stations is doubled, and more 3D display devices can be calibrated at the same time.

[0023] The reflector 5 is composed of a frame and a mirror body. For different display devices such as mobile phones and tablet computers, the distance between the reflector and the display device during calibration is different. Therefore, the reflector 5 is designed to be able to adjust the height on the bracket. Specifically, a slide groove 8 is provided on the bracket 4 and the baffle 7, and sliders are provided on both sides of the reflector 5 (not shown in the figure). The sliders are assembled in the slide groove 8, so that the reflector 5 can adjust the distance from the conveyor belt (and the display device on the conveyor belt) up and down; a fixing block 9 is provided on the top of the reflector 5, and a locking screw 91 is provided on the fixing block 9. The fixing block 9 is tightened to the bracket 4 or the baffle 7 by the locking screw 91, thereby fixing the reflector 5.

[0024] A dedicated assembly line is used, which is covered with reflectors. The distance between the product and the reflector is (16.5cm). If the product's camera is too close or too far away, the image will be blurred or out of focus. It is necessary to ensure that the camera and the subject are at an appropriate distance. The reflector can be moved on the bracket 4. The distance between the reflector 5 and the product is 15-30cm (the distance can be adjusted for different products such as mobile phones and tablets). This distance is 1 / 2 of the naked eye 3D viewing distance, which is the most basic calibration distance.

[0025] Calibration is to see the display screen that people should see at a fixed viewing angle. However, due to process problems, there are certain tolerances when producing or laminating gratings, so the light path does not enter our eyes as we designed at the beginning. Since the grating or the grating cannot be changed after laminating, we need to adjust our display screen so that the picture seen at a specific position is the picture displayed by the light path we designed. Therefore, we use the front camera to shoot the mirror reflection picture of the top of the fixture, and gradually adjust whether the reflected picture is the picture that should be displayed in the space of 16.5mm. If not, we gradually adjust the arrangement of the pictures, and then shoot and compare, and repeat the above steps to achieve the calibration effect.

[0026] The image arrangement algorithm can adapt to various pixel structures, 3D enhancement algorithms with different pixel structures, color compensation algorithms with different pixel structures, and crosstalk compensation algorithms for left and right views. 3D content of various formats can be re-arranged to 3D terminals of various formats to finally form 3D imaging (the light path is changed by the columnar grating so that our left and right eyes see different pictures, thus forming a 3D phenomenon in our brain).

[0027] There are three pictures in the calibration, as explained below: 1) The first picture is mainly used to compare and determine the position, angle, exposure and other related parameters of the front camera through the AI ​​algorithm for matching (on the APK we calibrated on the mobile phone, there are pictures with different angles, different exposure rates and other parameters for comparison); 2) The second picture is mainly used to measure and adjust the angle parameters of the picture arrangement; 3) The third picture is adjusted based on the second picture, so that our camera can take red and green pictures. Of course, this picture is the left-green and right-red picture that the left eye sees when we designed it.

[0028] The above is a specific calibration process. When it is used, the 3D display device is placed on the conveyor belt 2. The device moves with the conveyor belt. At the same time, the screen of the device displays a special calibration picture. The camera of the device captures the pattern reflected by the reflector for calibration. In order to avoid interference between products and the pictures reflected on the mirror, partitions are designed between products and in the middle to avoid interference with the front camera of the product when comparing pictures, resulting in calibration failure. In order to improve efficiency, a flow-pulling design is adopted, so that only two people are needed for the entire calibration process, one to place the product and the other to confirm the effect and take out the product. The efficiency of calibration can reach 300-400PCS / H.

[0029] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A 2-viewpoint naked-eye 3D display device automatic calibration pipeline device, characterized in that: It comprises a frame (1), a conveyor belt (2), a partition (3), a bracket (4) and a reflector (5); The conveyor belt (2) is mounted on a frame (1), a group of partitions (3) are evenly mounted on the conveyor belt (2), the bracket (4) is mounted on the frame (1), the reflector (5) is mounted on the bracket (4), and the reflector (5) is parallel to the conveyor belt (2); The area between the two partitions (3) is a calibration station (6), and the calibration station (6) is used to place a display device to be calibrated.

2. The automatic calibration pipeline device for a two-viewpoint naked-eye 3D display device according to claim 1, characterized in that: It also includes a baffle (7) which is longitudinally fixed to the bracket (4), and partitions (3) are provided on both the left and right sides of the baffle (7), thereby dividing the calibration station (6) into two left and right groups.

3. The automatic calibration pipeline device for a two-viewpoint naked-eye 3D display device according to claim 2, characterized in that: The support (4) and the baffle (7) are both provided with a slide groove (8), and sliding blocks are provided on both sides of the reflector (5), and the sliding blocks are assembled in the slide groove (8).

4. The automatic calibration pipeline device for a 2-viewpoint naked-eye 3D display device according to claim 3, characterized in that: A fixing block (9) is provided on the top of the reflector (5), and a locking screw (91) is provided on the fixing block.

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