A 3D screen calibration method

Abstract

The present invention relates to the field of 3D display technology, and discloses a correction method for a 3D screen, comprising the following steps: step S001, placing a 3D display unit, a phase plate and an image acquisition unit; step S002, adjusting the position of the image acquisition unit for focusing; step S003, acquiring a left eye picture to be corrected and a right eye picture to be corrected; step S004, connecting to a correction computer to transmit and analyze data; step S005, connecting to a control module; step S006, completing picture correction; step S007, solidifying correction parameters. The correction method for a 3D screen of the present invention separates a 3D picture of a 3D display unit into a left eye picture to be corrected and a right eye picture to be corrected by a phase plate, so as to achieve separate correction of the left eye picture to be corrected and the right eye picture to be corrected. The overall correction of the 3D picture can also be performed by obtaining the left eye picture to be corrected and the right eye picture to be corrected, and directly synthesizing the complete picture to be corrected by a correction computer. The correction method can quickly solve the problem of uneven and abnormal display of chromaticity and brightness of the 3D picture.

Description

Technical Field

[0001] The present invention relates to the field of 3D display technology, and in particular to a correction method for a 3D screen. Background Art

[0002] Polarized 3D uses the principle that light has a "vibration direction" to decompose the original image. By adding a polarizing plate to the display screen, two pictures with different polarization directions can be transmitted to the viewer. When the picture passes through polarized glasses, each lens of polarized glasses can only receive pictures with one polarization direction, so the left and right eyes of the person can receive two sets of pictures, and then the brain synthesizes a three-dimensional image. With the continuous development of pixel pitch, chip technology, 3D and other technologies, the resolution, brightness, crosstalk and other key indicators of polarized 3D screens have been continuously optimized, and the image quality is clearer and more realistic, which can bring better visual experience to users and is also one of the main trends in the current market development. Therefore, higher requirements are put forward for the consistency of picture brightness and color.

[0003] As we all know, each LED display screen is composed of many display units and thousands of LED lamp beads, and three colors of LED lights are combined into one pixel. Due to the discrete type of LED, the brightness of each luminous pixel of the same color is different, resulting in brightness differences. The brightness difference between the brightest and darkest LEDs in the same batch of products can sometimes be as high as 10% to 15%. In addition, the driving current will further cause the brightness difference of the pixels, which will further affect the brightness consistency of the entire screen. Therefore, it is necessary to adjust indicators such as brightness, chromaticity and current gain. The current mainstream adjustment method is point-by-point correction, that is, the brightness and chromaticity data of each pixel area on the screen are collected through a single camera, and the correction parameters for each pixel are obtained, which are fed back to the control system of the display screen to achieve regional adjustment of each pixel unit, thereby greatly improving the pixel brightness and chromaticity uniformity of the display screen. However, the 3D images of the polarized 3D screen mainly produce stereoscopic vision through the visual difference between the left and right eyes. Therefore, the left and right eye images need to be distinguished on the screen, and the existing correction method can only correct the 2D images of the 3D screen, but cannot correct the images in the 3D state. In particular, the difference in phase difference between the 3D left and 3D right images at a certain angle causes the 3D image to still have color difference, which directly affects the customer's visual experience. Summary of the invention

[0004] In order to solve at least one aspect of the above problems, the present invention provides a correction method for a 3D screen, comprising: step S001, placing a 3D display unit, a phase plate and an image acquisition unit: placing the 3D display unit perpendicular to the ground so that the display screen of the 3D display unit is perpendicular to the ground, placing the image acquisition unit on one side of the display screen of the 3D display unit, placing the phase plate between the 3D display unit and the image acquisition unit, and the phase plate includes a left eye phase plate and a right eye phase plate that can be switched; step S002, adjusting the image The position of the acquisition unit is focused: the position of the image acquisition unit is adjusted so that the acquisition focus of the image acquisition unit is focused on the 3D display unit; step S003, acquiring the left eye picture to be corrected and the right eye picture to be corrected: the phase plate is switched to the left eye phase plate / right eye phase plate, and the left eye picture / right eye picture in the display picture of the 3D display unit is filtered by the left eye phase plate / right eye phase plate, so that the image acquisition unit acquires the right eye picture to be corrected / left eye picture to be corrected; step S004, connecting to the correction computer to transmit and analyze data: The collected left eye and right eye images to be corrected are respectively transmitted to the correction computer, and are analyzed and corrected by the correction software on the correction computer to obtain correction parameters; Step S005, connecting the control module: a control module is connected between the correction computer and the 3D display unit, and the brightness and chromaticity of the minimum light-emitting unit in the 3D display unit are controlled by the control module; Step S006, completing the picture correction: the correction parameters are transmitted to the control module, and the control module identifies and stores the correction parameters, and controls the minimum light-emitting unit. The brightness and chromaticity of the unit are adjusted to appropriate brightness and chromaticity so that the 3D display unit can display correctly; the correction method of the 3D screen of the present invention separates the 3D picture of the 3D display unit into the left eye picture to be corrected and the right eye picture to be corrected through a phase plate, so as to realize the separate correction of the left eye picture to be corrected and the right eye picture to be corrected. It is also possible to obtain the left eye picture to be corrected and the right eye picture to be corrected, and directly synthesize the complete picture to be corrected through a correction computer to perform an overall correction of the 3D picture. The correction method can quickly solve the problem of uneven and abnormal display of chromaticity and brightness of the 3D picture.

[0005] Optionally, in step S001, the 3D display unit is a polarization 3D display screen, the phase difference between the left-eye phase plate and the right-eye phase plate is 180°, and both the left-eye phase plate and the right-eye phase plate are circular polarization plates.

[0006] Optionally, in step S002, the adjusting step specifically includes adjusting the height of the image acquisition unit from the ground and the distance between the image acquisition unit and the 3D display unit, and the acquisition focus of the image acquisition unit is focused on the center point of the 3D display unit.

[0007] Optionally, in step S004, the correction computer analyzes the left eye picture to be corrected to obtain left eye picture correction parameters; the correction computer analyzes the right eye picture to be corrected to obtain right eye picture correction parameters, and the correction parameters include the left eye picture correction parameters and the right eye picture correction parameters; in step S006, the left eye picture correction parameters and the right eye picture correction parameters are transmitted to the control module, the control module identifies and stores the left eye picture correction parameters, and controls the brightness and chromaticity of the smallest luminous unit in the left eye picture to be corrected to be adjusted to appropriate brightness and chromaticity, so that the left eye picture to be corrected is displayed correctly; the control module identifies and stores the right eye picture correction parameters, and controls the brightness and chromaticity of the smallest luminous unit in the right eye picture to be corrected to be adjusted to appropriate brightness and chromaticity, so that the right eye picture to be corrected is displayed correctly, so that the complete 3D display unit is displayed correctly.

[0008] Optionally, in step S001, the image acquisition unit is a digital camera; in step S004, the calibration computer analyzes the electronic photograph taken by the image acquisition unit to obtain the brightness and chromaticity of each minimum light-emitting unit, and analyzes the difference between the brightness and the chromaticity and the standard value, and the calibration parameter is the current gain percentage calculated based on the difference.

[0009] Optionally, in step S005, the control module includes an electrically connected control server and a video processing unit, the control server is electrically connected to the calibration computer, the video processing unit is signal-connected to the 3D display unit, the control server is used to receive the calibration parameters, and the video processing unit is used to transmit the signal of the current gain percentage to the corresponding minimum light-emitting unit to control the brightness and chromaticity of the corresponding minimum light-emitting unit.

[0010] Optionally, the image acquisition unit is connected to the correction computer via a signal line, and the correction computer is connected to the control server via TCP / IP.

[0011] Optionally, the control module also includes a splicing unit, which is electrically connected between the control server and the video processing unit. When the image acquisition unit performs block acquisition on the 3D display unit, the correction computer independently analyzes and calculates correction parameters for each block. The splicing unit is used to splice the correction parameters of each block into complete correction parameters for the complete picture, and send the complete correction parameters to the video processing unit.

[0012] Optionally, in step S004, the left eye picture to be corrected and the right eye picture to be corrected are combined into a complete picture to be corrected by the correction computer, and the correction computer performs data analysis on the complete picture to be corrected to obtain complete picture correction parameters.

[0013] Optionally, in step S006, the complete picture correction parameters are transmitted to the control module, the control module identifies and stores the complete picture correction parameters, and controls the brightness and chromaticity of the minimum luminous unit in the complete picture to be corrected to appropriate brightness and chromaticity, so that the complete picture to be corrected is displayed correctly.

[0014] The correction method of the 3D screen also includes step S007, solidifying the correction parameters: after confirming that the display of the 3D display unit is correct, the correction parameters are sent to the driving components inside the 3D display unit for solidification and storage. Beneficial effects of solidifying the correction parameters: when the 3D display unit needs to change the usage scenario and is driven by other control devices, the correction parameters in the driving components inside the 3D display unit can be read back to avoid repeated correction; Beneficial effects: when the 3D display unit is used in a limited place and cannot be corrected on site, it can be corrected in other suitable places, and the parameters can be saved in the driving components inside the 3D display unit, and then read back at the use site, which expands the application scenarios of this correction method.

[0015] Compared with the prior art, the correction method of the 3D screen of the present invention separates the 3D picture of the 3D display unit into the left eye picture to be corrected and the right eye picture to be corrected by a phase plate that can switch between the left eye phase plate / right eye phase plate, so as to realize the separate correction of the left eye picture to be corrected and the right eye picture to be corrected. It is also possible to obtain the left eye picture to be corrected and the right eye picture to be corrected, and directly synthesize the complete picture to be corrected by a correction computer to perform overall correction of the 3D picture. The correction method can quickly solve the problem of uneven and abnormal chromaticity and brightness display of the 3D picture; the correction computer and the control server are connected through TCP / IP, which has the advantages of high reliability and can ensure the integrity and reliability of data; strong flexibility and can adapt to different network environments and application requirements; provides a variety of data transmission methods and various service options, and has good compatibility: compatible with various computers, meeting the requirements of complex debugging environments; the splicing unit is an extended function when the screen is particularly large. If the 3D screen is too large, there is no way to collect the entire screen at one time, so it is necessary to perform correction in blocks, calculate parameters independently, and finally splice and synthesize, so as to meet the correction of 3D screens of various sizes and has a wide range of applications. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a flowchart of Embodiment 1 of the 3D screen correction method of the present invention;

[0017] Figure 2 This is a schematic diagram of the structure of a top view of a first embodiment of a correction method for a 3D screen of the present invention;

[0018] Figure 3 This is a schematic diagram of the structure of the top view of the second embodiment of the 3D screen correction method of the present invention;

[0019] The corresponding component names of the various figure marks in the figure are: 1 is a 3D display unit, 2 is a phase plate, 3 is an image acquisition unit, 4 is a correction computer, 5 is a control server, 6 is a video processing unit, 7 is a splicing unit, and 8 is a control module. DETAILED DESCRIPTION

[0020] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, specific embodiments of the present invention are described in detail below with reference to the accompanying drawings.

[0021] In the description of the present invention, it should be understood that the terms "upper", "lower" and the like indicate positions or location relationships that are based on the positions or location relationships when the product is normally used.

[0022] The terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of the features.

[0023] Embodiment 1:

[0024] See also Figure 1 and Figure 2 , Embodiment 1 of the present invention provides a 3D screen calibration method, comprising: step S001, placing a 3D display unit 1, a phase plate 2 and an image acquisition unit 3: placing the 3D display unit 1 perpendicular to the ground so that the display screen of the 3D display unit 1 is perpendicular to the ground, placing the image acquisition unit 3 on one side of the display screen of the 3D display unit 1 (such as Figure 2The lower side of the 3D display unit 1 is the side of the display picture), the phase plate 2 is placed between the 3D display unit 1 and the image acquisition unit 3, and the phase plate 2 includes a left eye phase plate and a right eye phase plate that can be switched; step S002, adjusting the position of the image acquisition unit 3 for focusing: adjusting the position of the image acquisition unit 3 so that the acquisition focus of the image acquisition unit 3 is focused on the 3D display unit 1; step S003, acquiring the left eye picture to be corrected and the right eye picture to be corrected: switching the phase plate 2 to the left eye phase plate / right eye phase plate, and using the left eye phase plate / right eye phase plate to focus the 3D display unit 1; step S004, acquiring the left eye picture to be corrected and the right eye picture to be corrected D The display unit 1 filters the left eye picture / right eye picture in the display picture, so that the image acquisition unit 3 collects the right eye picture to be corrected / left eye picture to be corrected. The filtering principle is: the polarized 3D screen itself has a polarization structure, which can transmit two pictures with different polarization directions to the viewer. When the picture passes through the right eye phase difference plate, only one polarization direction of the picture is accepted, that is, the left eye picture to be corrected; on the contrary, when passing through the left eye phase difference plate, only the right eye picture to be corrected is accepted; step S004, connecting to the correction computer to transmit and analyze data: the collected left eye picture to be corrected and The right eye pictures to be corrected are respectively transmitted to the correction computer 4, and are analyzed and corrected by the correction software on the correction computer 4 to obtain correction parameters. The correction software can be the software developed by Nova, Colorite, etc. which are commonly seen on the market; Step S005, connecting the control module 8: the control module 8 is connected between the correction computer 4 and the 3D display unit 1, and the brightness and chromaticity of the minimum light-emitting unit in the 3D display unit 1 are controlled by the control module 8; Step S006, completing the picture correction: the correction parameters are transmitted to the control module 8, the control module 8 identifies and stores the correction parameters, and controls the minimum light-emitting unit. The brightness and chromaticity of the light unit are adjusted to appropriate brightness and chromaticity so that the 3D display unit 1 can display correctly; the correction method of the 3D screen of the present invention separates the 3D picture of the 3D display unit into the left eye picture to be corrected and the right eye picture to be corrected through a phase plate, so as to realize the separate correction of the left eye picture to be corrected and the right eye picture to be corrected. It is also possible to obtain the left eye picture to be corrected and the right eye picture to be corrected, and directly synthesize the complete picture to be corrected through a correction computer to perform an overall correction of the 3D picture. The present correction method can quickly solve the problem of uneven and abnormal display of chromaticity and brightness of the 3D picture.

[0025] See also Figure 1 and Figure 2In step S001, the 3D display unit 1 is a polarized 3D display screen, the phase difference between the left eye phase plate and the right eye phase plate is 180°, and both the left eye phase plate and the right eye phase plate are circular polarization plates; the polarized 3D screen uses the vibration direction of light to decompose the original image, and will project two mutually perpendicular fully polarized lights, the left eye phase plate and the right eye phase plate differ by 180°, and are used to receive these lights to form left and right eye images; circular polarization is to add a layer of phase difference film on the basis of linear polarization, so that the deflected light has the effect of rotating clockwise and counterclockwise. At present, 3D glasses Circular polarized glasses are used, so this embodiment also uses a circular polarization plate to simulate the actual viewing effect; in step S002, the adjustment step is specifically to adjust the height of the image acquisition unit 3 from the ground and the distance from the 3D display unit 1. The acquisition focus of the image acquisition unit 3 is focused on the center point of the 3D display unit 1. The phase plate is mounted on the lens of the image acquisition unit. The distance between the image acquisition unit 3 and the 3D display unit 1 is related to the size of the 3D display unit. The larger the 3D display unit, the farther the distance. It is also related to the field of view and focal length of the image acquisition unit used.

[0026] See also Figure 1 and Figure 2In step S004, the left eye picture to be corrected is analyzed by the correction computer 4 to obtain the left eye picture correction parameters; the right eye picture to be corrected is analyzed by the correction computer 4 to obtain the right eye picture correction parameters, and the correction parameters include the left eye picture correction parameters and the right eye picture correction parameters; in step S006, the left eye picture correction parameters and the right eye picture correction parameters are transmitted to the control module 8, the control module 8 identifies and stores the left eye picture correction parameters, and controls the brightness and chromaticity of the smallest luminous unit in the left eye picture to be corrected to be adjusted to appropriate brightness and chromaticity, so that the left eye picture to be corrected is displayed correctly; the control module 8 identifies and stores the right eye picture correction parameters, and controls the brightness and chromaticity of the smallest luminous unit in the right eye picture to be corrected to be adjusted to appropriate brightness and chromaticity, so that the right eye picture to be corrected is displayed correctly, so that the complete 3D display unit 1 is displayed correctly; in step In step S001, the image acquisition unit 3 is a digital camera, and the image acquisition unit is preferably an industrial camera or other device that meets the pixel acquisition requirements; in step S004, the calibration computer 4 analyzes the electronic photos taken by the image acquisition unit 3 to obtain the brightness and chromaticity of each minimum light-emitting unit, and analyzes the difference between the brightness and chromaticity and the standard value, and the calibration parameter is the current gain percentage calculated based on the difference; after the calibration computer analyzes the picture, the brightness and chromaticity of each minimum light-emitting unit can be obtained, and each minimum light-emitting unit contains lights of the three primary colors of red, green and blue. By analyzing the differences of each minimum light-emitting unit, a current gain percentage is comprehensively calculated. For example, if a minimum light-emitting unit is dark, the red, green and blue of this unit are increased at the same time; if a minimum light-emitting unit is blue, the current of the blue light is reduced alone, so that the chromaticity and brightness are consistent with or tend to be consistent with the standard value.

[0027] See also Figure 1 In step S005, the control module 8 includes an electrically connected control server 5 and a video processing unit 6. The video processing unit can identify and store the correction parameters and send them to the corresponding pixel points according to the pixel coordinates. The above-mentioned pixels refer to each minimum light-emitting unit on the 3D screen. The pixel coordinates are obtained by analyzing the photos taken by the image acquisition unit through the correction computer; the video processing unit in this embodiment is hardware, which is a digital video sending box, and sends the correction parameters to the corresponding pixel coordinates to accurately control the display of the chromaticity and brightness of each pixel point; the control server 5 is electrically connected to the correction computer 4, and the video processing unit 6 is signal-connected to the 3D display unit 1. The control server 5 is used to receive the correction parameters, and the video processing unit 6 is used to transmit the current gain percentage signal to the corresponding minimum light-emitting unit to control the brightness and chromaticity of the corresponding minimum light-emitting unit.

[0028] See also Figure 1 and Figure 2, the image acquisition unit 3 is connected to the correction computer 4 through a signal line, and the correction computer 4 is connected to the control server 5 through TCP / IP; TCP / IP is a network communication protocol with the advantages of high reliability and the ability to ensure data integrity and reliability; it is highly flexible and can adapt to different network environments and application requirements; it provides a variety of data transmission methods and various service options, and has good compatibility: it is compatible with various computers and meets the requirements of complex debugging environments; the control module 8 also includes a splicing unit 7, which is electrically connected between the control server 5 and the video processing unit 6. When the image acquisition unit 3 performs block acquisition on the 3D display unit 1, the correction computer 4 independently analyzes and calculates correction parameters for each block, and the splicing unit 7 is used to splice the correction parameters of each block into a complete correction parameter of the complete picture, and send the complete correction parameter to the video processing unit 6 to complete the correction of the complete 3D screen; the correction method of the 3D screen also includes step S007, solidifying the correction parameter: after confirming that the 3D display unit 1 displays correctly, the correction parameter is sent to the driving components inside the 3D display unit 1 for solidification and preservation. Beneficial effect of solidifying correction parameters: 1. When the 3D display unit needs to change usage scenarios and is driven by other control devices, the correction parameters in the driving components inside the 3D display unit can be read back to avoid repeated correction. Beneficial effect 2. When the 3D display unit is used in a limited location and cannot be calibrated on site, it can be calibrated in other suitable places, and the parameters can be saved in the driving components inside the 3D display unit, and then read back at the location of use, expanding the application scenarios of this correction method.

[0029] Embodiment 2:

[0030] See also Figure 1 and Figure 3 The difference between the second embodiment and the first embodiment is that: in step S004, the left eye picture to be corrected and the right eye picture to be corrected are synthesized into a complete picture to be corrected by the correction computer 4, and the correction computer 4 performs data analysis on the complete picture to be corrected to obtain the correction parameters of the complete picture; in step S006, the correction parameters of the complete picture are transmitted to the control module 8, the control module 8 identifies and stores the correction parameters of the complete picture, and controls the brightness and chromaticity of the smallest luminous unit in the complete picture to be corrected to be adjusted to appropriate brightness and chromaticity, so that the complete picture to be corrected is displayed correctly; the splicing unit is an extended function when the screen is particularly large. If the 3D screen is too large, there is no way to capture the entire screen at one time, so it is necessary to perform correction in blocks, calculate parameters independently, and finally splice and synthesize to meet the correction of 3D screens of various sizes, and has a wide range of applications.

[0031] The correction method of the 3D screen of the present invention separates the 3D picture of the 3D display unit into the left eye picture to be corrected and the right eye picture to be corrected by using a phase plate that can switch between the left eye phase plate / right eye phase plate, so as to realize the separate correction of the left eye picture to be corrected and the right eye picture to be corrected. The left eye picture to be corrected and the right eye picture to be corrected can also be obtained, and the complete picture to be corrected is directly synthesized by a correction computer to perform overall correction of the 3D picture. The correction method can quickly solve the problem of uneven and abnormal chromaticity and brightness display of the 3D picture; the correction computer and the control server are connected through TCP / IP, which has the advantages of high reliability and can ensure the integrity and reliability of data; strong flexibility and can adapt to different network environments and application requirements; provides a variety of data transmission modes and various service options, and has good compatibility: compatible with various computers and meets the requirements of complex debugging environments; the splicing unit is an extended function when the screen is particularly large. If the 3D screen is too large, there is no way to collect the entire screen at one time, so it is necessary to perform correction in blocks, independently calculate parameters, and finally splice and synthesize to meet the correction of 3D screens of various sizes, and has a wide range of applications.

[0032] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the technical principles of the present invention. These improvements and modifications should also be regarded as the scope of protection of the present invention.

Claims

1. A 3D screen calibration method, characterized in that: The steps include: Step S001, placing a 3D display unit (1), a phase plate (2) and an image acquisition unit (3): placing the 3D display unit (1) perpendicular to the ground so that the display screen of the 3D display unit (1) is perpendicular to the ground, placing the image acquisition unit (3) on one side of the display screen of the 3D display unit (1), placing the phase plate (2) between the 3D display unit (1) and the image acquisition unit (3), the phase plate (2) comprising a left-eye phase plate and a right-eye phase plate that can be switched; Step S002, adjusting the position of the image acquisition unit (3) for focusing: adjusting the position of the image acquisition unit (3) so that the acquisition focus of the image acquisition unit (3) is focused on the 3D display unit (1); Step S003, capturing the left eye picture to be corrected and the right eye picture to be corrected: switching the phase plate (2) to a left eye phase plate / right eye phase plate, filtering the left eye picture / right eye picture in the picture displayed by the 3D display unit (1) by means of the left eye phase plate / right eye phase plate, so that the image capture unit (3) captures the right eye picture / left eye picture to be corrected; Step S004, connecting to the calibration computer to transmit and analyze data: the collected left eye calibration image and the right eye calibration image are respectively transmitted to the calibration computer (4), and the calibration software on the calibration computer (4) performs analysis and calibration to obtain calibration parameters; Step S005, connecting a control module (8): a control module (8) is connected between the calibration computer (4) and the 3D display unit (1), and the brightness and chromaticity of the smallest light-emitting unit in the 3D display unit (1) are controlled by the control module (8); Step S006, completing image correction: transmitting the correction parameters to the control module (8), the control module (8) identifying and storing the correction parameters, and controlling the brightness and chromaticity of the minimum light-emitting unit to be adjusted to appropriate brightness and chromaticity, so that the 3D display unit (1) can display correctly.

2. The 3D screen calibration method according to claim 1, characterized in that: In step S001, the 3D display unit (1) is a polarization 3D display screen, the phase difference between the left-eye phase plate and the right-eye phase plate is 180°, and both the left-eye phase plate and the right-eye phase plate are circular polarization plates.

3. The 3D screen calibration method according to claim 1, characterized in that: In step S002, the adjustment step specifically comprises adjusting the height of the image acquisition unit (3) from the ground and the distance between the image acquisition unit (3) and the 3D display unit (1), wherein the acquisition focus of the image acquisition unit (3) is focused on the center point of the 3D display unit (1).

4. The 3D screen calibration method according to claim 1, characterized in that: In the step S004, the correction computer (4) analyzes the left eye picture to be corrected to obtain left eye picture correction parameters; the correction computer (4) analyzes the right eye picture to be corrected to obtain right eye picture correction parameters, the correction parameters including the left eye picture correction parameters and the right eye picture correction parameters; in the step S006, the left eye picture correction parameters and the right eye picture correction parameters are transmitted to the control module (8), the control module (8) identifies and stores the left eye picture correction parameters, and controls the brightness and chromaticity of the smallest luminous unit in the left eye picture to be corrected to be adjusted to appropriate brightness and chromaticity, so that the left eye picture to be corrected is displayed correctly; the control module (8) identifies and stores the right eye picture correction parameters, and controls the brightness and chromaticity of the smallest luminous unit in the right eye picture to be corrected to be adjusted to appropriate brightness and chromaticity, so that the right eye picture to be corrected is displayed correctly, so that the complete 3D display unit (1) is displayed correctly.

5. The 3D screen calibration method according to claim 1, characterized in that: In step S001, the image acquisition unit (3) is a digital camera; in step S004, the calibration computer (4) analyzes the electronic photograph taken by the image acquisition unit (3) to obtain the brightness and chromaticity of each minimum light-emitting unit, and analyzes and obtains the difference between the brightness and the chromaticity and the standard value, and the calibration parameter is the current gain percentage calculated based on the difference.

6. The 3D screen calibration method according to claim 5, characterized in that: In step S005, the control module (8) comprises an electrically connected control server (5) and a video processing unit (6), wherein the control server (5) is electrically connected to the calibration computer (4), and the video processing unit (6) is signal-connected to the 3D display unit (1), wherein the control server (5) is used to receive the calibration parameter, and the video processing unit (6) is used to transmit the signal of the current gain percentage to the corresponding minimum light-emitting unit to control the brightness and chromaticity of the corresponding minimum light-emitting unit.

7. The 3D screen calibration method according to claim 6, characterized in that: The image acquisition unit (3) is connected to the correction computer (4) via a signal line, and the correction computer (4) is connected to the control server (5) via TCP / IP.

8. The 3D screen calibration method according to claim 6, characterized in that: The control module (8) further comprises a splicing unit (7), wherein the splicing unit (7) is electrically connected between the control server (5) and the video processing unit (6); when the image acquisition unit (3) performs block acquisition on the 3D display unit (1), the correction computer (4) performs independent analysis and calculation of correction parameters on each block; the splicing unit (7) is used to splice the correction parameters of each block into complete correction parameters of a complete picture, and send the complete correction parameters to the video processing unit (6).

9. The 3D screen calibration method according to claim 1, characterized in that: In step S004, the left eye picture to be corrected and the right eye picture to be corrected are combined into a complete picture to be corrected by the correction computer (4), and the correction computer (4) performs data analysis on the complete picture to be corrected to obtain complete picture correction parameters.

10. The 3D screen calibration method according to claim 9, characterized in that: In step S006, the complete picture correction parameters are transmitted to the control module (8), and the control module (8) identifies and stores the complete picture correction parameters, and controls the brightness and chromaticity of the smallest luminous unit in the complete picture to be corrected to be adjusted to appropriate brightness and chromaticity, so that the complete picture to be corrected is displayed correctly.

11. The 3D screen calibration method according to any one of claims 1 to 10, characterized in that: The method further comprises step S007, solidifying the correction parameters: after confirming that the display of the 3D display unit (1) is correct, sending the correction parameters to the driving components inside the 3D display unit (1) for solidification and storage.

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